WO2002035492A9

WO2002035492A9 - Moving object monitoring system, moving object monitoring apparatus, moving object monitoring method, move detecting method for moving object monitoring

Info

Publication number: WO2002035492A9
Application number: PCT/JP2001/008948
Authority: WO
Inventors: Kenichi Matsumoto; Kenji Kitano; Hiroyuki Teramoto; Kenichi Furukawa; Ken Kamiyama
Original assignee: Secom Co Ltd; Kenichi Matsumoto; Kenji Kitano; Hiroyuki Teramoto; Kenichi Furukawa; Ken Kamiyama
Priority date: 2000-10-20
Filing date: 2001-10-11
Publication date: 2002-09-19
Also published as: JP3886455B2; TWI235967B; JPWO2002035492A1; AU2001294229A1; WO2002035492A1

Abstract

A moving object monitoring system in which a portable terminal (2) is carried by a moving object such as a vehicle and a monitoring center (6) monitors the position, movement, and theft of the moving object on the basis of report from the portable terminal. The ease of use and monitoring accuracy that a moving object monitoring system having a wide monitoring area and including a large number of users is required to have are improved. The usability is improved by providing a seamless service even if any one of the users moves to anywhere. The monitor is started with reference to the destination of a user. The monitoring accuracy is improved by the step of detecting the movement in consideration of the position measurement error of the portable terminal and the step of detecting an abnormal event upon theft by means of a vibration sensor or an infrared sensor. The portable terminal is separable from a set operation module. The setting of theft monitoring of the portable terminal can be canceled only by the set operation module that the user carries.

Description

TECHNICAL FIELD The present invention relates to a moving object monitoring system, a moving object monitoring device, a moving object monitoring method, and a moving judgment method in the moving object monitoring.

The present invention relates to a moving object monitoring system, a moving object monitoring device, and a moving object that allow a mobile terminal such as a vehicle to accompany a mobile terminal and monitor position, movement, and theft at a monitoring center based on a report from the mobile terminal. The present invention relates to a monitoring method and a movement determination method in monitoring a moving object. Background art

A position monitoring target such as a wandering elderly person may carry a portable terminal having position detection means, or a terminal device having position detection means may be installed on a moving body such as an automobile to monitor the position of the moving body. Various monitoring systems have been proposed and implemented in the evening.

For example, a mobile terminal has a GPS (Global Positioning System) reception function, and uses it to detect its own position and report it to a monitoring center. The monitoring center can search for and track mobiles based on location information transmitted from mobile terminals.

The surveillance center does not monitor all mobile units with equal importance, but if a mobile unit is presumed to be in an abnormal situation based on information from a mobile terminal, it will take special It pays attention, issues warnings, and performs search and tracking.

As one of the conventional techniques for estimating the abnormal situation of a moving object, a system has been proposed in which a movement permitted range is registered in advance at a monitoring center, and if the movement deviates from the movement permitted range, an abnormal behavior is determined. ing.

However, with this conventional mobile monitoring system, it is necessary to register the range of movement permitted in the monitoring center in advance. For example, it is difficult to receive monitoring services when traveling, etc., when in an unusual area. Met.

Also, for example, when the moving object is a vehicle such as a car, if the car moves from the position where the vehicle is parked, it is determined that the car has been stolen, and it may be determined that the car is abnormal. Noh. The determination as to whether or not the user has traveled is made by calculating the distance between the point indicated by the latest received latitude and longitude information and the previously received point or the reference point. Has been determined.

However, the position information of the moving object includes an error due to the reception status of the positioning signal. For this reason, when determining whether or not the moving object has moved, if the presence or absence of movement is determined from the distance between the points based on the position information obtained from the mobile terminal, the actual position of the moving object may be at the end of the error range. If it is a part, even if it is not actually moving, the detection point may fluctuate due to fluctuations in the propagation status of the positioning signal, and it may be determined that it has moved. Also, in order to prevent this, it is conceivable to determine the movement based on the fact that the detection point has been separated by a predetermined distance or more. In this case, while erroneous determination of movement is reduced, if the error of the positioning signal is small, the movement can be originally determined in a short time, but the determination takes a long time.

It is also possible to consider a system in which a mobile terminal is equipped with a sensor that detects an event that occurs under abnormal conditions of a mobile object, detects the occurrence of an abnormality, and notifies the monitoring center. For example, in a conventional monitoring system for car theft, a mobile terminal installed in a car detects vibrations that may occur when the vehicle is stolen with a sensor, and determines that the car is stolen based on the detection result. ing. When the terminal device determined that the terminal device was stolen, the terminal device reported to the monitoring center by wireless communication. Here, if the instantaneous vibration is determined to be abnormal, an erroneous determination is likely to occur. On the other hand, when a car is stolen, the car is moved, and the resulting vibration continues for some time. Therefore, usually, the mobile terminal determines that the mobile terminal is abnormal when the vibration has continued for a predetermined time.

However, in this conventional monitoring system for car theft, the mobile terminal installed in the car determines the abnormality and reports it to the monitoring center. However, if the monitoring center is not notified of the abnormality determination, there is a problem that the monitoring center cannot detect theft, that is, a false report is made. In addition, if the vibration continuation time until the abnormality determination is shortened, it is possible to avoid such a false alarm due to such a work, but on the other hand, for example, when parked in a mechanical parking lot, other Each time a car enters or leaves the vehicle, an abnormal judgment is made, which increases the number of false alarms. The present invention relates to a mobile monitoring system that monitors the occurrence of an abnormal state in a mobile based on a report of position information and the like from a mobile terminal carried by the mobile, and aims to improve the usability and monitoring accuracy. With the goal. Disclosure of the invention

A moving object monitoring system according to the present invention is a moving object monitoring system that monitors the position of the moving object at the monitoring center based on a report from a portable terminal carried by the moving object to a monitoring center, An operation unit for setting the start and stop of the monitoring operation by the mobile terminal; a positioning unit for acquiring position information of the mobile terminal; a monitoring set signal and a monitoring release corresponding to the start and stop of the monitoring operation, respectively. A notification unit for notifying the monitoring center of the position information at the start of the monitoring operation and the position information thereafter, wherein the monitoring center is configured to perform the monitoring operation notified from the mobile terminal. The mobile station stores the position information at the time of the start of the mobile communication, and thereafter, based on the position information notified from the mobile terminal, performs the mobile communication between the monitoring set signal and the monitoring cancellation signal. A determination unit that monitors a position of the terminal and determines that an abnormality has occurred in the mobile object when the mobile terminal is separated from the start position of the monitoring operation by a predetermined distance or more. In addition, the method for monitoring a mobile object according to the present invention may further include a monitoring set signal according to the start of the monitoring operation, the position information of the mobile terminal at the start of the monitoring operation, and Then, a step of notifying the monitoring center of the position information of the mobile terminal to the monitoring center, and determining that an abnormality has occurred when receiving the position information at least a predetermined distance from the position information at the start of the monitoring operation. And

According to the present invention, when the monitoring set signal and the current position are notified to the monitoring center from the mobile terminal, the monitoring center starts monitoring the mobile having the mobile terminal. The monitoring center detects abnormal movement of the moving object based on the position at the start of the monitoring operation. Thus, it is not necessary to register the movement permitted area in the monitoring center in advance, and for example, the mobile body monitoring service can be used in a travel destination or the like.

Also, the mobile object monitoring method according to the present invention is a method for transmitting, from a mobile terminal carried by a mobile object, a monitoring set signal according to the start of a monitoring operation and position information of the mobile terminal at the start of the monitoring operation to a monitoring center. Reporting; and the monitoring center receives the Setting a movement permission area for the moving object based on a monitoring set signal and the position information.

According to the present invention, when the monitoring set signal and the current position are notified to the monitoring center, the monitoring center sets the movement permitted area based on the position. Accordingly, the movement permitted area does not need to be registered in the monitoring center in advance, and is set according to the destination of the moving object. Therefore, for example, the moving object monitoring service can be used even in a travel destination.

The moving determination method, the moving body monitoring device, and the moving body monitoring system in the moving body monitoring according to the present invention obtain the same moving body at different times when the position information obtained by the mobile terminal includes an error. It is determined whether or not there is an overlap between a plurality of error regions corresponding to a plurality of pieces of position information, and if there is no overlap, it is output that the moving body has moved.

According to the present invention, even when the position information includes an error, it is detected that the moving body has moved without fail, and false reports are suppressed.

A moving object monitoring system according to the present invention is a moving object monitoring system that monitors the position of the moving object at the monitoring center based on a report from a portable terminal carried by the moving object to a monitoring center, A sensor unit for detecting occurrence and disappearance of a predetermined event that can occur when the mobile object is stolen; and transmitting an abnormality signal to the monitoring center in response to detection of the occurrence of the predetermined event, and detecting disappearance of the predetermined event. A reporting unit that reports a restoration signal to the monitoring center according to the monitoring unit, wherein the monitoring center starts timing when receiving the abnormal signal, and ends timing when receiving the restoration signal. A determining unit that determines that theft has occurred based on the fact that the clock value of the clock unit has exceeded a predetermined grace time.

According to the present invention, the monitoring center determines that a mobile object such as a vehicle is stolen. Predetermined events that can occur when a mobile object is stolen include, for example, vibration of the mobile object, approach and contact of a person with the mobile object. An event that may be abnormal is detected by the sensor unit, and when that event occurs, an error signal is sent from the notification unit to the monitoring center, and an abnormal state may occur. If the event disappears, a recovery signal is sent to notify the possibility that the status has returned to normal. This Here, the mobile terminal does not judge whether it is abnormal or normal, that is, whether or not it has been stolen. The judgment is made by the monitoring center based on the abnormal signal / recovery signal received. To avoid false alarms, the monitoring center does not immediately judge that an abnormal signal has been received, and monitors whether the specified event continues for a specified time. That is, a predetermined delay time is provided from the reception of the abnormal signal to the final determination. Basically, abnormal conditions at the time of theft include, for example, vibrations caused by running of the vehicle and removal of the moving object, contact with the vehicle for opening the door of the vehicle and driving operation, and the moving object when removing the vehicle. Because of the need for a certain degree of persistence, such as contact of a car, by setting a grace period in this way, transient events, such as vibrations caused by the operation of a mechanical parking lot or the approach of pedestrians to contact False alarm resulting from such an event can be suppressed. In addition, since the monitoring center determines that the theft has not been received when the recovery center does not receive the recovery signal, it is possible to detect theft even if the thief stops the operation of the mobile terminal by abnormal means.

In the mobile monitoring system according to the present invention, the mobile terminal further includes a holding unit for holding the report of the restoration signal, and the holding unit detects a generation of the predetermined event for a predetermined period. When the occurrence of the predetermined event is newly detected during the hold state, the duration of the hold state is extended, and when the hold state ends, the recovery signal is output. Report.

According to the present invention, the mobile terminal does not immediately report the restoration signal even if the predetermined event disappears, and suspends the report of the restoration signal for a predetermined period. When the next predetermined event occurs during this hold state, the duration of the hold state is extended. As a result, the time measured until the recovery signal is received at the monitoring center increases. If a given event occurs repeatedly at relatively short intervals, it is often an abnormal condition. In such a case, according to the present invention, even if each of the predetermined events has a duration equal to or less than the grace period, it is difficult to overlook the event, and the unreporting is suppressed. For example, when a thief tries to drive a vehicle and take it away, vibrations during driving can cause intermittent short periods of time, such as waiting for a traffic light. However, such abnormal conditions can be detected.

In the present invention, the recovery signal is not generated every predetermined event, and is generated only when the suspension state ends, whereas the abnormal signal may be generated every time a predetermined event occurs. This is because the timing at the monitoring center does not end even if an abnormal signal is repeatedly received. This is because it can be configured as follows. On the other hand, a preferred aspect of the present invention is the mobile monitoring system, wherein the notifying unit notifies the abnormal signal at the start of the suspension state. In this embodiment, the abnormal signal is generated only when the first predetermined event that initiates the hold state occurs.

A mobile monitoring system according to the present invention is a mobile monitoring system that monitors the occurrence of theft of the mobile at the monitoring center based on a notification from a mobile terminal carried by the mobile to the monitoring center. A sensor unit for detecting the occurrence and disappearance of a predetermined event that may occur when the mobile terminal is stolen; and transmitting an abnormal signal to the monitoring center in response to the detection of the occurrence of the predetermined event; And a notifying unit for notifying the monitoring center of a recovery signal in response to the detection of the disappearance of the event.When the monitoring center receives the abnormal signal, the monitoring center starts a holding state for a predetermined period, When a new abnormal signal is received, a holding means for extending the duration of the hold state, a timer for counting the duration of the hold state, and a timer for counting the duration exceeds a predetermined grace period. A determination unit for determining that theft has occurred based on the determination.

The present invention is another configuration for detecting an abnormal state in which a predetermined event repeatedly occurs at relatively short intervals. According to the present invention, an abnormal signal and a recovery signal are reported from the mobile terminal every time a predetermined event occurs or disappears, and the monitoring center side holds the signal. In other words, the timer measures the time from the start to the end of the suspended state, not the time from the abnormal signal to the recovery signal. When receiving the next abnormal signal from the mobile terminal during the holding state, the holding means of the monitoring center extends the duration of the holding state. The hold, even recovery signal is received before its completion, the count end, and _c clocking theft occurs whether the determination is pending when the pending state is ended, or the last received error signal It can end at the time when the corresponding recovery signal is received, whichever is later.

A preferred aspect of the present invention described above is a moving object monitoring system, wherein the sensor unit includes a vibration sensor that detects vibration as the predetermined event. Still another mobile object monitoring system according to the present invention, wherein the mobile terminal further comprises: an operation unit for setting start and stop of a theft monitoring operation; and a positioning unit for acquiring current position information of the mobile terminal. The notification unit further transmits a monitoring set signal and a monitoring release signal to the monitoring center according to the start and stop of the theft monitoring operation, respectively. When reporting various signals to the monitoring center, the location information is also reported together, and the determination unit moves the mobile terminal from the time of reporting the monitoring set signal based on the location information. The distance is obtained, and the fact that the moving distance exceeds a predetermined allowable distance is used for determining the occurrence of theft.

According to the present invention, the mobile terminal detects a predetermined event such as vibration by the sensor unit, and acquires its own position information by the positioning unit. The position information of the mobile terminal is reported to the monitoring center along with these signals when transmitting various signals such as a monitoring set signal, an abnormal signal, and a recovery signal from the sensor terminal. The monitoring center obtains the moving distance of the mobile terminal from the start of the theft monitoring operation based on the position information, and uses the moving distance to determine the occurrence of theft. For example, the determination unit can be configured so that even if the time value of the clock unit exceeds a predetermined grace time, if the movement distance is equal to or less than the allowable distance, the determination unit does not determine that the vehicle is stolen. Thus, for example, in a configuration in which vibration is detected as a predetermined event when the moving body is a vehicle, it is possible to avoid false alarms when parking in a place where vibration may occur such as mechanical parking. Become. In addition, the determination unit may be configured to determine that the theft has occurred even if the time value of the timer unit is equal to or less than the grace time when the movement distance from the start of monitoring exceeds the allowable distance.

The moving object monitoring system according to the present invention is characterized in that the operation unit is configured to be separable from the portable terminal body.

According to the present invention, it is possible to carry the operation unit when the user leaves the moving body. Since there is no operation unit in the mobile terminal body, it becomes difficult for anyone other than the user to release the monitoring operation and remove the mobile object. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a diagram illustrating the overall configuration of a mobile monitoring system according to the present invention. FIG. 2 is a schematic block diagram of the monitoring center.

FIG. 3 is a schematic block diagram of a mobile terminal.

FIG. 4 is a schematic block diagram of the communication module.

FIG. 5 is a schematic block diagram of the set operation module.

FIG. 6 is a schematic block diagram of the sensor module. FIG. 7 is an operation flowchart of the mobile terminal according to the first embodiment.

FIG. 8 is an operation flowchart of the monitoring center in the first embodiment.

FIG. 9 is a flowchart of the monitoring process in the second embodiment when the monitoring center receives a monitoring set signal from the mobile terminal.

FIG. 10 is a schematic diagram showing an example of a position error table for determining an error range.

FIG. 11 is a schematic diagram showing the correlation between the error regions of the point positions obtained at two different times.

FIG. 12 is a processing flow diagram in the communication module when shifting from the release state to the set state in the third embodiment.

FIG. 13 is a processing flowchart of the vibration determination processing in the third embodiment. FIG. 14 is a processing flowchart of the transfer determination processing in the third embodiment. FIG. 15 is a flowchart of a process performed in the signal output unit according to the third embodiment.

FIG. 16 is a diagram illustrating the processing flow of the communication module in the set state according to the third embodiment.

FIG. 17 is a flowchart of a process performed in the monitoring center according to the third embodiment.o Best mode for carrying out the invention

A mobile monitoring system according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that a mobile object is a concept that covers vehicles, motorcycles, people, water, cash, and fine arts, and includes all things that do not move, such as real estate. The invention can be implemented in several different forms. Hereinafter, the configuration and operation of a basic system common to each embodiment will be described first, and then the details of each embodiment will be described individually.

[Basic configuration and operation]

FIG. 1 is a diagram illustrating the overall configuration of a mobile monitoring system according to the present invention. The mobile surveillance system of the present invention detects abnormalities such as theft of a mobile object, In response to the missing mobile object, the response staff performs search and other actions, such as a mobile terminal 2 carried by or attached to the mobile object, a response terminal 4 carried by the response agent, and monitoring. Center 6 is connected via network 8. Further, a base station 10 of a mobile phone and a satellite reference station 12 are connected to the network 8. In addition, a GPS (global positioning system) satellite 14 is used for the mobile terminal 2, the handling terminal 4 and the satellite reference station 12 to acquire their own positional information.

By the way, 24 or more GPS satellites are currently deployed in satellite orbit. GPS is a system that receives radio waves transmitted from multiple satellites launched into low Earth orbit and measures the latitude, longitude, and altitude of the current location. Originally developed by the United States for military purposes, some were opened to civilians and used for position calculations. With a small antenna and a small processing unit, the position can be specified with an accuracy of several to several tens of meters.

The mobile terminal 2 and the coping terminal 4 have a GPS receiving function and a mobile phone communication function, respectively, and acquire their own position information based on signals from the satellites 14, and also communicate with the base station 10. The communication can be performed by a wireless telephone line.

The satellite reference station 12 is fixed at a predetermined position and knows its exact position. Satellite reference stations 12 can be installed at multiple locations. The satellite reference station 12 compares the predetermined position with its own position information obtained from the GPS satellite 14 signal, generates correction information for the position information obtained from the GPS satellite 14 signal, and sends it to the monitoring center 6. provide.

FIG. 2 is a schematic block diagram of the monitoring center 6. The monitoring center 6 calculates the positions of the communication unit 20 that is connected to the network 8 and performs communication, the control unit 22 that controls each block of the monitoring center 6, and the positions of the mobile terminal 2 and the coping terminal 4. A position calculation unit 24 that detects the occurrence of an abnormal situation such as theft and instructs a predetermined countermeasure, and a storage unit 28 that stores various types of information used for processing. These are connected to each other by a LAN (Local Area Network). It also has a display unit and an operation unit (not shown). The display unit displays the current position of the moving object, the trajectory of the moving object, whether or not to deal with it, the current status, etc. on the display, and supports the operation of the supervisor. In addition, the operation unit is a device on which the observer performs input operations. Confuse.

The position calculation unit 24 communicates the GPS position information reported by the mobile terminal 2 and the coping terminal 4, information on the base station 10 that can communicate with the terminals 2 and 4, and correction information from the satellite reference station 12. It obtains it through the section 20 and calculates the exact positions of the mobile terminal 2 and the coping terminal 4. The calculated position information of the mobile terminal 2 and the coping terminal 4 is passed to the abnormality monitoring unit 26. In addition, the position information of the portable terminal 2 and the coping terminal 4 is stored in the storage unit 28 sequentially in association with their reception times, and the abnormality monitoring unit 26 reads the position information from the storage unit 28 and uses it. It can be.

For example, the position calculation unit 24 has a position request function and a position reception function. The position request function requests the portable terminal 2 to transmit the current position, and sends a position information request command to the portable terminal 2. The position receiving function receives position information, which is a response from the mobile terminal 2 to the position information request command. This position information includes a point of the portable terminal 2 represented by latitude and longitude, and error information of the point of the portable terminal 2. The error information will be described later.

The abnormality monitoring unit 26 acquires the position information of the mobile terminal 2 from the position calculation unit 24 or the storage unit 28. When the mobile terminal 2 includes a sensor that detects information other than the position, the abnormality monitoring unit 26 acquires the information detected by the sensor via the communication unit 20. For example, the sensor detects a predetermined event such as vibration. The abnormality monitoring unit 26 uses one or both of the position information and the sensor detection information to determine whether or not an abnormality such as theft has occurred in the mobile body where the mobile terminal 2 is installed. You. If it is determined that an abnormality has occurred, the abnormality monitoring unit 26, based on the position information on the coping terminal 4 obtained from the position calculation unit 24 or the storage unit 28, Select a nearby agent. The selected responder is instructed to take measures such as searching for a moving object. This instruction is issued by a supervisor at the monitoring center 6. Note that the abnormality monitoring unit 26 may be configured to automatically notify a response staff of a preset coping instruction when it is determined that an abnormality has occurred.

The storage unit 28 can have a function as a position information buffer that stores the position information calculated by the position calculation unit 24 as described above. By storing not only the current position information but also the past position information for a predetermined time in the storage unit 28, the abnormality monitoring unit 26 can perform any processing once the movement trajectory is grasped.

In addition, the storage unit 28 has a function of storing a position error table, which will be described later, and information of a mobile object to be monitored which is registered in advance for each mobile terminal. The type of information about a mobile unit depends on whether the mobile unit is a vehicle or a person.For example, vehicle type, vehicle number, manufacturer, color, name, gender, address, telephone number, e-mail address Dress, identification number, name, gender, address, face photo, birthday, identification number, mobile phone number, etc. of the attendant of the terminal device. The storage unit 28 stores electronic map information of a target area monitored by the monitoring center 6.

FIG. 3 is a schematic block diagram of the mobile terminal 2. The portable terminal 2 includes a wireless communication unit 50, an operation unit 52, a control unit 54, and a power supply 56. Further, a sensor 58 for detecting information other than the position is provided as needed.

The wireless communication unit 50 includes a GPS receiving unit 70, a CDMA receiving unit 72, and a communication unit 74. The GPS receiver 70 realizes a function of receiving a GPS signal from the GPS satellite 14. The CDMA receiving section 72 realizes a function of receiving a base station signal (hereinafter, referred to as a CDMA signal) from the base station 10 of the mobile phone. The communication unit 74 communicates with the monitoring center 6 via the network 8. The operation unit 52 is an input means for the IJ user to perform a set operation for putting the mobile terminal 2 in a monitoring state and a release operation for releasing the same. The operation unit 52 is composed of a touch switch such as a numeric keypad. The control unit 54 includes a microprocessor, a semiconductor memory, and the like, and controls the entire mobile terminal. The details will be described later. The power supply 56 is a rechargeable battery that supplies power to each part.

In the present system, the portable terminal 2 is configured to be separable into at least two: a set operation module including the operation unit 52 and a communication module including the wireless communication unit 50. When the mobile terminal 2 requires the sensor 58, a sensor module including the sensor 58 is configured as a separate module. FIGS. 4, 5, and 6 are schematic block diagrams showing three modules of the portable terminal 2, respectively. FIG. 4 shows a communication module, FIG. 5 shows a set operation module, and FIG. 6 shows a sensor module. are doing.

The communication module controls each unit of the communication module in addition to the wireless communication unit 50. The control unit 80 includes a storage unit 82 for storing data used by the control unit 80, and an interface for connecting an external device 84 connected to a set operation module or a sensor module. The communication module further includes a battery pack 86 serving as a power supply 56, a power supply switch 88 for switching power on / off, and a monitoring LED (Light Emission Diode) 90 for displaying whether or not a monitoring state has been established.

The set operation module is a control unit 100 that sends a control signal to instruct the communication module to start / stop monitoring in response to a signal from the operation unit 52, in addition to the operation unit 52, and is connected to the communication module. It is configured to include a connection interface 102 to be connected and a display unit 104 for displaying input contents and the like on the operation unit 52.

The sensor module is connected to a communication module when monitoring theft of a mobile object. The sensor module shown in Fig. 6 is configured to monitor theft of a vehicle. A vibration sensor 110 detects vibration that may occur due to the movement of the vehicle, etc., and an infrared sensor detects changes in the heat source around the sensor module. Sensors 1 1 and 2 Judgment unit 1 14 s based on the output of these sensors to determine whether or not a predetermined event that can occur at the time of theft occurs Connection interface 1 16 connected to the communication module 1 16 An abnormal signal is generated when the occurrence of a predetermined event is detected by the connection determination unit 1 18 and the determination unit 1 14 that determine whether or not the predetermined event is connected, and when the disappearance of the predetermined event is detected. And a signal output unit 120 for generating a recovery signal. Further, the determination unit 114 includes a vibration determination unit 122 that determines the occurrence / stop of vibration based on the output of the vibration sensor 110, and a portable terminal 2 based on the output of the infrared sensor 112. It includes a relocation judging unit 124 for judging the relocation of the loading place.

With the configuration in which the set operation module is detachable from the communication module, there is no danger that the portable terminal 2 will be set and operated by itself in the monitoring mode ゃ cancellation mode by a third party. When the operation unit can be divided into a set / release operation unit related to the setting of the monitoring mode / release mode, and another operation unit unrelated to the setting of the monitoring mode / release mode, The set operation module may be provided with only a set / release operation unit, and the other operation units may be provided in another module such as a communication module.

Next, the general operation of the monitoring center 6 and the portable terminal 2 will be described.

The monitoring center 6 has an authentication server and an application server. It responds to inquiries about the current location from the user, monitors abnormalities of the mobile terminal 2, and responds to such abnormalities. It should be noted that various communication means such as telephone-fax (i.e., e-mail via the Internet) can be used between the user and the monitoring center 6. When the monitoring center 6 receives an inquiry about the location of the mobile unit from the user, the monitoring center 6 transmits a position information request command to the mobile terminal 2 attached to the mobile unit. The position information request command is transmitted from the communication unit 20 to the network 8 and transmitted to the mobile terminal 2 through the nearest base station 10 not having the mobile terminal 2. Incidentally, when the power is turned on, the mobile terminal 2 performs reception approximately once a minute, and receives a CDMA signal from one or a plurality of nearby base stations 10 at this timing. Note that the reception interval is not limited to this, and may be appropriately selected according to the moving object, and may be once every few seconds or once every tens of minutes.

Upon receiving the position information request command, the mobile terminal 2 adds its own ID code (identification code) to the GPS signal received at that time and the CDMA signal of the base station 10 to obtain the position information data. The evening is transmitted from the wireless communication unit 50 to the monitoring center 6 via the base station 10 and the network 8. Here, the communication unit 20 of the monitoring center 6 performs authentication in order to prevent the cyber mouth, and transmits the position information received from the mobile terminal 2 to the position calculation unit 24. The position calculation unit 24 determines how many GPS signals and how many CDMA signals are based on the position information data transmitted from the mobile terminal 2. Even if the mobile terminal 2 cannot receive the GPS signals from the three GPS satellites 14, the position calculation unit 24 converts the 0 1 1/1 signal from the base station 10 into 63 signals. The position of the mobile terminal 2 is calculated based on the principle of three-point surveying, etc., by using them complementarily. The position calculation unit 24 uses the satellite error data obtained from the satellite reference station 12 in addition to the position information data received from the mobile terminal 2 to calculate the position of the mobile terminal 2.

The position of the calculation result by the position calculation unit 24 is stored in the storage unit 28 and used by the abnormality monitoring unit 26. The storage unit 28 stores the calculation result of the position of the mobile terminal 2 in association with the ID code and the reception time of the position information. For example, the abnormality monitoring unit 26 uses the location information of the mobile unit obtained from the storage unit 28 to inform the user of the current location of the mobile unit by telephone, Mark the location on the map and send by fax The information is transmitted by various methods, such as transmitting the map data with the position of the moving object by e-mail.

In the above-described configuration, the position calculation unit 24 is provided at the same site as the abnormality monitoring unit 26. However, the position calculation unit 24 may be provided as a position calculation center and a site different from the monitoring center 6. In this case, the mobile terminal 2 transmits the position information to the position calculation center, and the position calculation center calculates the position coordinates of the mobile terminal 2 and the error information used for the calculation (for example, The number of GPS satellites 14 and base stations 10, the arrangement of 03 satellites 14 and base stations 10, and the reception strength) are transmitted to the mobile terminal 2 as position information. The mobile terminal 2 transmits the position information received from the position calculation center to the monitoring center 6. In this configuration, the system can be constructed by completely separating the position calculation center that determines the position of the moving object from the monitoring center 6 for monitoring and searching for the moving object, so that the position calculation center can be changed or other position information can be changed. This is advantageous because the incorporation of is relatively easy.

Here, communication is performed between the mobile terminal 2 and the base station 10 using a CDMA mobile phone system, thereby establishing a network 8 between the mobile terminal 2 and the monitoring center 6. Data communication can be performed. The CDMA method is a communication method called code spreading multiple access. Note that the communication system of the terminal device is not limited to the CDMA system, and may be another system. The communication speed of the data communication service is 64 kbps from the base station 10 to the portable terminal 2, and packet communication with the reverse direction being 14.4 kbps is possible.

[First Embodiment]

The mobile monitoring system according to the first embodiment of the present invention has the above-described basic configuration and operation. Hereinafter, the first embodiment will be described based on the above basic configuration and operation. FIG. 7 is an operation flowchart of the mobile terminal 2, and FIG. 8 is an operation flowchart of the monitoring center 6.

A user who receives the location monitoring service carries the portable terminal 2 and goes out. In this example, it is assumed that a user goes out of a car and parks in a parking lot, and then monitors for theft of the car.

The mobile terminal 2 has a monitoring mode set when receiving the location monitoring service, There are two modes, a release mode set when the location monitoring service is not received. When the user leaves the car, the monitoring mode is set (set) using the operation unit 52 of the mobile terminal 2. For example, the # and * buttons are pressed simultaneously for a predetermined time or longer (step S200).

When the monitoring mode is set, the control unit 54 of the mobile terminal 2 detects its own position information (step S205). Here, if the mobile terminal 2 can detect the position information, the mobile terminal 2 sends the monitoring set signal indicating that the mobile terminal 2 has been set to the monitoring mode together with its own ID code and the position signal at that time to the communication unit 74. (Step S210). The control unit 54 stores in advance its own ID code, a destination code of the monitoring center 6, a monitoring set signal code, and a monitoring release signal code indicating that monitoring has been released. .

For example, when it is impossible to receive GPS signals from GPS satellites or CDMA signals from base station 10, such as when a car is parked in an underground parking lot, it cannot detect its own location information. Wait for signal transmission to. In this case, the monitoring center 6 cannot monitor the position of the vehicle. If the vehicle is stolen and moved, the GPS signal is automatically received when the GPS signal etc. can be received by the GPS signal receiver 70 (for example, when the vehicle leaves the underground parking lot). The current position is detected at 0 or the like, and a monitoring set signal and position information are transmitted to the monitoring center 6 via the communication unit 74 together with its own ID code.

In the monitoring center 6, the communication unit 20 receives the ID code, the monitoring set signal, and the position information at that time transmitted from the mobile terminal 2 (step S300), and transmits the position information to the position calculation unit 2. 4 and the position of the portable terminal 2 calculated by the position calculation unit 24 is stored in the storage unit 28 (step S305).

After transmitting the monitoring set signal and the like to the monitoring center 6 in step S210, the mobile terminal 2 detects the subsequent position information at predetermined time intervals (for example, every 5 minutes), (Step S215). The detection of the position information and the transmission to the monitoring center 6 are repeated until the user performs the operation of canceling the monitoring on the mobile terminal 2 (step S220).

After returning to the car after completing the business, the user releases the monitoring mode and Set to one. For example, a release mode is set by inputting a preset personal identification number from the ten-key buttons of the operation unit 52 of the mobile terminal 2. When the mobile terminal 2 is set to the release mode, the mobile terminal 2 transmits a monitoring release signal to the monitoring center 6 via the communication unit 74, and thereafter stops detecting and transmitting the position information (step S2 25 ). In step S305, the monitoring center 6 stores the position information of the portable terminal 2 but also stores a predetermined distance range corresponding to the error information detected by the portable terminal 2. Thereafter, the monitoring center 6 monitors whether or not to receive the position information from the portable terminal 2 within a predetermined time, for example, within 10 minutes (step S310). This fixed time may be set slightly longer than the predetermined time interval transmitted by the mobile terminal 2 in step S215. Note that the fixed time does not necessarily have to be one fixed time interval, and may be changed as appropriate if the predetermined time interval transmitted by the mobile terminal is changed.

Here, if the monitoring center 6 does not receive the position information from the mobile terminal 2 within a certain period of time, the mobile terminal 2 may be destroyed. Is displayed (S315), and appropriate measures are taken. For example, based on the last received location information, the location of the mobile terminal 2 is shown on the map displayed on the display unit 26, and the nearest person in charge of the location is dispatched to the site to determine whether or not there is a car. Check the status.

In step S310, upon receiving subsequent position information from the mobile terminal 2, the abnormality monitoring unit 26 reads a new position obtained corresponding to the position information from the storage unit 28, and It is determined whether or not the position is within a predetermined distance range from the past position stored in step S305 (step S320).

Here, if it is determined that the distance is equal to or longer than the predetermined distance, the car may have been stolen and moved, and the display of the monitoring center 6 will display an alarm and the latest position of the mobile terminal 2 will be displayed. Display on the map (S315). After that, the location of the moved car is tracked from the sequentially transmitted location information, and measures such as reporting to the police are performed. Next, when the monitoring center 6 receives the monitoring cancellation signal from the portable terminal 2, the monitoring of the position of the vehicle is terminated (step S325). The monitoring center 6 repeats the processing from step S310 until the monitoring release signal is received. According to the above-described operation of monitoring the position of the moving object by the present system, the person who holds the mobile terminal 2 can set the start or end of the monitoring service of the moving object based on his / her own will. That is, according to the setting of the monitoring mode by the user, an arbitrary destination point is automatically set as the reference position in the monitoring center 6, and the movement is monitored from the reference position. In this configuration, it is not necessary to register a movement permitted range or a monitoring area in the monitoring center 6 in advance. In other words, there is no need for the user to request the monitoring center 6 to change the monitoring area in accordance with the destination, and there is no need for the operation of the monitoring center 6 to set the monitoring area.

[Second embodiment]

The mobile monitoring system according to the second embodiment of the present invention also has the basic configuration and operation described above, as in the first embodiment. Hereinafter, the second embodiment will be described based on the above basic configuration and operation. Here, in the _c This arrangement shall position calculation center having a function of position calculator 2 4 is provided separately from the monitoring center 6 portable terminal 2 transmits the position information to the position calculation center. The position calculation center calculates accurate position information on the mobile terminal 2 using not only information from the mobile terminal 2 but also information from the satellite reference station 12. The calculated position information is transmitted to the mobile terminal 2, and the mobile terminal 2 transmits this to the monitoring center 6.

First, an outline of the monitoring operation in the monitoring center 6 will be described. The mobile terminal 2 transmits a monitoring set signal, an abnormality signal, a recovery signal, a monitoring release signal, and other signals to the monitoring center 6. The position information of the mobile terminal 2 is added to each transmission signal. Here, the monitoring set signal is a signal for requesting the monitoring center 6 to monitor the state of the moving object, and the setting operation of the monitoring mode is performed by the operation unit 52 of the mobile terminal 2. Sent by For example, when monitoring the parking of an automobile, the user operates the operation unit 52 when the automobile is parked, and the monitoring set signal is transmitted.

When the monitoring center 6 receives the monitoring set signal from the mobile terminal 2, the monitoring center 6 registers the position information added to the signal in the storage unit 28, and the mobile terminal from which the abnormality monitoring unit 26 transmitted the signal. Start monitoring of 2. During the monitoring, if the above various signals are received from the portable terminal 2, an error region is calculated, and the error region is calculated according to the received signal. The movement of the mobile terminal 2 is determined based on the presence or absence of an overlap between the error region output and the error region in the position information registered at the start of monitoring. If it is determined to be moving, the specified abnormal processing is performed. In addition, when the abnormality monitoring unit 26 receives an abnormality signal from the mobile terminal 2, it starts an abnormality determination timer, and determines that an abnormality has occurred if it does not receive a recovery signal or a release signal from the mobile terminal 2 within a predetermined time. To perform abnormal processing. When the monitoring center 6 receives the restoration signal, the abnormality monitoring unit 26 terminates the counting of the abnormality determination timer. When the monitoring center 6 receives the release signal, the abnormality monitoring unit 26 terminates the monitoring processing as well as stopping the abnormality determination timer.

Next, the operation of the monitoring center 6 will be described in detail with reference to FIG. FIG. 9 shows a monitoring processing port when the monitoring center 6 receives a monitoring set signal from the mobile terminal 2.

First, when the monitoring center 6 receives the monitoring set signal from the mobile terminal 2, the monitoring center 6 stores the received position information together with the monitoring set signal in the storage unit 28, and also stores the abnormality monitoring unit 26 and the monitoring set signal. The monitoring of the transmitted mobile terminal 2 is started (step S400). Here, the location information includes, in addition to the position of the mobile terminal 2 calculated by the location calculation center, for example, the number of GPS satellites 14 and base stations 10 that can be received, GPS satellites 14 and base stations, and so on. 1 0 placement, and _c using the error information error information such reception strength is included, error region to be described later is calculated. The storage unit 28 stores the calculated error region together with the position information received from the mobile terminal 2. When the monitoring is started, it is checked whether an abnormality determination timer described later has counted a predetermined time (for example, 5 minutes) (S405). When the monitoring set signal is received, it is normal that the abnormality determination timer has not been started, so the process proceeds to step S410.

In step S410, it is determined whether or not a signal has been received from mobile terminal 2 after the start of monitoring. Here, the signal includes an abnormal signal, a recovery signal, a release signal (these will be described later), a monitoring set signal, and a periodic transmission signal not described in this flow and the like. Here, the processing for other signals is not directly related to the present invention, and thus is omitted for simplification. Note that the signals transmitted by pairs to the monitoring center 6 from the portable terminal 2, if the received signal at _c Step S 4 1 0 contain essentially all positional information, included in the signal Included in the location information An error region is calculated based on the error information, and the error region is stored in the storage unit 28 together with the point positions of the mobile terminal 2 that are included in the position information (S 415). On the other hand, if no signal has been received, the process returns to step S405.

Here, the determination of the error region in step S415 will be described with reference to FIG. 10 and FIG. FIG. 10 is an example of a position error table for determining an error range, which is stored in the storage unit 28. In other words, a breakdown of the information that is the basis for calculating the position coordinates (point position) of the mobile terminal 2 included in the position information received from the mobile terminal 2 (the number of GPS satellites used for calculating the position and the It is a table showing the correspondence between the error information and the error range. For example, if the position is calculated using GPS signals from two or more GPS satellites and CDMA signals from one mobile phone base station, the error range is within 1 Om, and the GPS signal from one GPS satellite and the mobile phone base station Within 30 m when the position is calculated using the CDMA signal from one station, and 10 when the position is calculated using the CDMA signal from one mobile phone base station when there is no GPS signal from the GPS satellite. Correspond to within 0 m. It should be noted that such a correspondence table may be appropriately determined according to the performance of the positioning system, the positioning method, and the like, and it is needless to say that the present invention is not limited to this example. In other words, the error range becomes smaller as accuracy improves with the times, and it may fluctuate due to aging equipment or system change.

Next, an error region is determined based on the error range and the point position thus determined. That is, the error area is a circular area centered on the position coordinates indicated by the latitude and longitude, which is the point position, and having the error range as a radius. As shown in Fig. 11, the error areas were defined as the error ranges of 10 m, 30 m, and 100 m based on statistical empirical rules, centering on the point positions A and B indicated by crosses, respectively. . The result of the determined error region is expressed as a mathematical formula of a circle in a coordinate system with the latitude and longitude as the horizontal axis and the vertical axis, respectively. In this example, the error region is shown as a circular shape for simplicity.However, the position of the GPS satellites at the time of acquiring the position information, the position of the CDMA base station, and the radio wave propagation condition based on the positioning area condition For example, the error range including the degree of geographical influence that varies from place to place differs depending on the location, and the error range may be calculated each time based on the state. In this case, oval shape, polygonal shape, etc. Various shapes are appropriately selected.

Returning to FIG. 9, in step S420, the error region at the monitoring start position stored in advance in step S400 and the error region determined in step S420 overlap each other. It is determined whether or not they are separated from each other and whether or not one is included in the other. As shown in FIG. 11, for example, it is assumed that the point position A is calculated as the position of the moving object at the start of monitoring, and the point position B is calculated as the position of the moving object at the time of subsequent signal reception. For example, if the error range at the point position A is 100 m (circle 500) and the error range at the point B is 100 m (circle 5100), There is an overlap in the error region. In this case, it is determined that the mobile terminal 2 has not moved, and the process proceeds to step S425. That is, if the actual moving object exists in the overlapping portion, the position of the moving object may be determined to be either the point position A or the point position B depending on the acquisition status of the position information. For this reason, if the error areas overlap, the mobile unit may not have moved, so it is not determined that it has moved.

On the other hand, if the error range of the point position A is an error region of 100 Om (circle 500) and the error range of the point position B is an error region of 30 m (circle 5111), Since the error regions do not overlap (the circles 500 and 511 in the error region are separated from each other), it is determined that the moving object has moved, and the flow advances to step S450. In step S450, the fact that the moving object being monitored has moved indicates the possibility of theft, so it is determined that an abnormality has occurred, and the monitoring center 6 displays an abnormality on the display unit. The error display includes information on whether an error has occurred, location information, basic information on the moving object, and the like. The observer can take appropriate measures, such as urging the responder to the site or contacting the user, by seeing the abnormal display.

In step S425, it is determined whether an abnormal signal has been received. If the signal is an abnormal signal, an abnormality judgment timer is started (step S430), and the process returns to step S405. When the abnormality determination timer measures a predetermined time (for example, 5 minutes) in step 405, the process proceeds to step S450 to perform the same abnormality processing as described above. When receiving the restoration signal from the mobile terminal 2, the timer of the abnormality determination timer is stopped, and the process returns to step S405 (steps S435, S440). When the release signal is received, the monitoring is terminated and the process exits from this flow (S444). On the other hand, after monitoring starts, If the signal received from 2 is a signal other than the abnormal signal, the recovery signal, and the release signal, the process returns to step S405 to repeat the same processing.

In the present embodiment, the presence / absence of movement is determined based on the monitoring start position. However, the present invention is not limited to this, and the presence / absence of movement is determined based on position information at two different times after the start of monitoring. May be. Alternatively, the presence or absence of movement may be determined from three or more pieces of position information.

Further, in the present embodiment, the position calculation center determines the point position and the error range. However, the mobile terminal 2 determines the point position and the error range based on the positioning signal received by the mobile terminal 2, and determines them based on the monitoring center. 6 may be sent.

Furthermore, in the present embodiment, the position information calculated by the position calculation center is transmitted from the portable terminal 2 to the monitoring center 6, but it may be transmitted directly from the position calculation center to the monitoring center 6. good.

As described above, in the present system, since the determination of the movement of the moving object is performed in consideration of the positioning accuracy in the positioning system, it is possible to reduce the influence of the error fluctuation between the actual position and the measured position. Therefore, the erroneous determination of the movement determination due to the error fluctuation is reduced, and the movement determination processing when the error is small can be speeded up.

[Third embodiment]

The mobile monitoring system according to the third embodiment of the present invention also has the basic configuration and operation described above, as in the above embodiments. The present embodiment describes a mobile monitoring system in which the mobile terminal 2 includes a sensor for detecting information other than the position, and is a system for detecting theft of a vehicle such as an automobile. Hereinafter, the third embodiment will be described based on the basic configuration and operation described above. Here, the position calculation unit 24 is disposed in the monitoring center 6 as shown in FIG.

First, an outline of the operation of the present system will be described. Using the vehicle theft detection service provided by this system, the user operates the mobile terminal 2 and sets the start and stop of the theft monitoring operation by the mobile terminal 2. Hereinafter, the state of the mobile terminal 2 where the theft monitoring is being performed is referred to as a set state, and the state of the mobile terminal 2 where the theft monitoring is stopped is referred to as a released state.

'The user parks the vehicle and sets the mobile terminal 2 in a set state before leaving the vehicle. Specifically, the user connects the set operation module to the communication module, After the switch 88 is turned on, a predetermined monitoring set is input from the operation unit 52, whereby the communication module constituting the portable terminal 2 is set. In this system, the set operation module is removed from the communication module that has shifted to the set state, and the sensor module is connected to the communication module instead. When the communication module enters the set state, it transmits a monitoring set signal to the monitoring center 6, and upon receiving the monitoring set signal, the monitoring center 6 starts monitoring the vehicle on which the mobile terminal 2 is mounted for theft. I do. When the communication module is connected to the sensor module, the communication module generates an abnormal signal and a recovery signal based on the outputs of the vibration sensor 110 and the infrared sensor 112 and transmits them to the monitoring center 6. The monitoring center 6 that has started monitoring determines whether or not the vehicle has been stolen based on the abnormal signal and the recovery signal reported from the communication module, and if it is determined that the vehicle has been stolen, responds as described above. Instruct terminal 4 to take action.

On the other hand, when the user returns to the vehicle, the mobile terminal 2 is released. Specifically, the user removes the sensor module from the communication module, and instead connects the set operation module to the communication module, and performs a predetermined monitoring release input from the operation unit 52 to release the communication module. State.

When the communication module enters the release state, the communication module transmits a monitoring release signal to the monitoring center 6, and upon receiving the monitoring release signal, the monitoring center 6 stops monitoring the vehicle on which the portable terminal 2 is mounted for theft.

Subsequently, a more detailed operation in the portable terminal 2 will be described with reference to FIGS. 12 to 17, and then a more detailed operation in the monitoring center 6 will be described with reference to FIG.

FIG. 12 is a processing port diagram of the communication module when shifting from the release state to the set state. The communication module monitors the input from the external device connection interface 84 in the release state, and when the monitoring set input is detected (S600), starts the transition processing to the set state. I do. In this transition process, if it can be authenticated that the operation is performed by a valid user based on an operation signal input from the set operation module, the radio communication unit 50 receives a signal from the GPS satellite 14 and The current position information of the communication module is obtained (S605), and the control unit 80 sends data including the position information and the monitoring start signal to the monitoring center 6 (S610). . Monitor from communication module Data to the viewing center 6 is first transmitted wirelessly from the wireless communication unit 50 to the base station 10 via a mobile phone communication line, and then transmitted from the base station 10 to the monitoring center 6 via the network 8. You. Further, the control unit 80 stores the information indicating the monitoring mode in the storage unit 82 (S615), and the communication module shifts to the set state (S620). As described above, thereafter, the set operation module is removed from the communication module, and the sensor module is connected to the communication module instead.

The operation of the communication module in the set state will be described later with reference to FIG.

FIGS. 13 to 15 show the operation of the sensor module constituting the mobile terminal 2. First, FIG. 13 is a processing flowchart of the vibration determination processing. When the connection determination unit 118 detects that the communication module in the set state is connected to the sensor module by transmitting and receiving a predetermined signal between the two (S700), the vibration determination unit 122 Starts processing. When the vibration sensor 110 detects vibration, the vibration determination unit 122 basically outputs a vibration detection signal continuously for a predetermined duration.

When the vibration is detected (S705) and the output of the vibration detection signal is not already held (S710) when the vibration is detected, the vibration determination section 122 starts outputting the vibration detection signal (S710). 7 15), a holding timer for measuring the duration of the vibration detection signal is started (S 720). On the other hand, if the output of the vibration detection signal is held in step S710, the vibration determination unit 122 restarts the holding timer while holding the output of the vibration detection signal. (S 725). That is, the hold timer restarts the hold time from the time when a new vibration is detected.

If no vibration is detected in step S705, it is determined that the holding time is up (S730). When the hold timer times out, the output hold of the vibration detection signal is released (S735), but if the time has not expired, the output hold of the vibration detection signal is continued. The duration is, for example, the average duration of one gondola ride in a mechanical parking lot, the average time interval between two subsequent gondola trips, and the time between one start and stop of the vehicle. It is determined based on the time of the traffic, the average stop time due to signal waiting, etc. Specifically, when the vehicle is parked in the mechanical parking lot, the duration of the vibration detection signal is basically prevented from exceeding the grace period at the monitoring center 6 by restarting the holding timer, and on the other hand, If the thief tries to remove the vehicle, even if the vibration during the running of the vehicle is interrupted due to waiting for a signal, etc., the duration of the vibration detection signal is basically extended by the restart of the holding timer, so that the monitoring center 6 is allowed The duration of the vibration detection signal is set to exceed the time. For example, its duration can be set to about one minute.

The processing of steps S705 to S735 is repeated until the connection determination unit 118 detects that the communication module is not connected to the sensor module (S740). On the other hand, when the disconnection with the communication module is detected, the vibration determining unit 122 ends the processing (S745).

FIG. 14 is a processing flowchart of the transfer determination processing. When the connection determination unit 118 detects that the communication module in the set state is connected to the sensor module (S800), the transfer determination unit 124 starts processing. If the infrared sensor 112 detects a change in the amount of infrared rays in the surroundings and a vibration is detected within a predetermined time before and after the change, for example, within 5 seconds (S810), somebody will be notified. It is highly likely that the sensor module was moved from the place where it was mounted on the vehicle. Therefore, in this case, the transfer determination unit 124 starts outputting a transfer detection signal indicating the possibility of the sensor module to be transferred (S815), and holds this transfer detection signal (S820). ).

On the other hand, if no infrared change is detected in step S805, and if no vibration is detected within the predetermined time in step S810, no special processing is performed.

The above-described processing in the transfer determination unit 124 is repeated until the connection determination unit 118 detects that the communication module is not connected to the sensor module (S825). If no connection is detected, the transfer determination unit 124 ends the processing (S830). Incidentally, the transfer detection signal once output-started is held until the processing in the transfer determination section 124 ends.

FIG. 15 is a flowchart of the processing performed by the signal output unit 120. The signal output unit 120 determines whether or not the relocation determination unit 124 has output a relocation detection signal (S900), and if the relocation detection signal has been output, transmits to the communication module. The output of the signal indicating the abnormal status is started (S905). If it is determined in step S900 that the transfer detection signal has not been output, the vibration determination Is determined (S910). If the vibration detection signal has been output, start outputting the signal indicating the abnormal status to the communication module (S905) o

On the other hand, when neither the transfer detection signal nor the vibration detection signal is output (S910), the signal output section 120 starts outputting a signal indicating a normal status to the communication module (S91). Five ) .

The processing in the signal output unit 120 based on the presence or absence of the transfer detection signal and the vibration detection signal S900 to S910 is also repeated while the communication module is connected to the sensor module (S9 20).

FIG. 16 is a processing flowchart of the communication module in the set state. As described above, if the sensor module determines that there is a risk of theft based on the outputs of the vibration sensor 110 and the infrared sensor 112, the output to the communication module indicates a normal state. From normal status to abnormal status, which means that an error was detected. On the other hand, if the possibility of theft has decreased, the status is changed from abnormal status to normal status.

The communication module monitors the input from the external device connection interface 84, and if it detects that the status output from the sensor module has transitioned from normal to abnormal (S1000), the satellite module 3 The signal of step 4 is received, and the current position information of the communication module is obtained (S1005). Then, data including an abnormal signal indicating the transition to the abnormal status and the current position information is transmitted to the monitoring center 6 (S11010). On the other hand, when the communication module detects that the status output from the sensor module has transitioned from abnormal to normal (S1002), the communication module receives a signal from the GPS satellite 14 and receives the current status of the communication module. (S1025), and sends a data including a recovery signal indicating that the status has changed to the normal status and the current location information to the monitoring center 6 (S1030) ). Here, if there is no change in the status, no overnight transmission to the monitoring center 6 is performed.

As described above, the processing of monitoring the status of the sensor module by the communication module in steps S1000 to S10030 is repeated until the above-described monitoring release input from the set operation module is detected ( S 1 0 5 0). The communication module is When the monitoring release input is detected, the control unit 80 stores information indicating that the mode is the release mode in the storage unit 82 (S1055), and the communication module shifts to the release state and the monitoring center. A release signal is sent to 6 (S1060).

By the way, when the sensor module is not connected to the communication module, neither the normal status signal nor the abnormal status signal is input to the communication module. Therefore, even if the thief removes the sensor module from the communication module, the normal status signal is not input to the communication module, and the communication module does not detect the transition to the normal status in step S120. However, the restoration signal is not sent to the monitoring center 6.

Next, a more detailed operation of the monitoring center 6 will be described. FIG. 17 is a flowchart of the processing performed in the monitoring center 6. When the monitoring center 6 receives the monitoring start signal sent from the mobile terminal 2 in step S610 (S110), it starts monitoring the vehicle on which the mobile terminal 2 is placed, The position of the vehicle at the start of monitoring is registered in the storage unit 28 (S1105). The position of the vehicle (more precisely, the portable terminal 2) is determined by the position calculation unit 24 based on the position information transmitted together with the monitoring start signal. The position calculating unit 24 calculates the position of the vehicle by correcting the position information obtained from the mobile terminal 2 using information from the satellite reference station 12 and the like.

Further, the position information of the mobile terminal 2 is added not only to the monitoring start signal but also to various other signals transmitted from the mobile terminal 2 to the monitoring center 6. When receiving a signal from the mobile terminal 2 of the monitored vehicle (S111), the position calculating unit 24 performs the same correction as when monitoring is started, and calculates the position of the vehicle from the position information added to the signal. The abnormality monitoring unit 26 calculates the moving distance of the vehicle from the start of monitoring from the position at the start of monitoring registered in the storage unit 28 and the latest position (S111). When the moving distance exceeds a predetermined allowable distance for determining that the vehicle has been stolen (S112), the abnormality monitoring unit 26 determines that an abnormality has occurred. Then, a display indicating the occurrence of an abnormality is displayed on a display device or the like, and a monitor at the monitoring center 6 is notified (S112). If the moving distance is equal to or less than the allowable distance (S1120), the received signal in step S111 is an abnormal signal transmitted from the mobile terminal 2 in step S110. (S1130) or the recovery signal transmitted in step S1300 (S11 1 1 3 5), it is determined whether or not it is the release signal transmitted in step S 1 500 (S 1 1 4 0).

If the received signal is an abnormal signal, the abnormality monitoring unit 26 starts counting time (S11445). On the other hand, if the received signal is a recovery signal, the timing is terminated (S1150). In these cases, the grace time determination process S1160 is subsequently performed. Also, when there is no new received signal in step S111, and when the received signal is not any of the abnormal signal, the recovery signal, and the release signal, the process shifts to step S116. . If the received signal is a release signal, the monitoring of the vehicle is terminated (S115).

In the grace time determination process S1160, it is determined whether the time counted in step S11445 has exceeded a predetermined grace time. If the measured time does not exceed the grace time, the abnormality monitoring unit 26 proceeds to the determination process S11110 of whether or not a new signal has been received. (S116), it is determined that an abnormality has occurred, a display indicating that the abnormality has occurred is displayed on a display device or the like, and a monitoring person at the monitoring center 6 is notified (S112). The grace time is determined together with the duration based on the above-described consideration in determining the duration of the retention timer of the mobile terminal 2. For example, the grace time can be set to about 10 minutes.

As described above, the monitoring center 6 determines whether the vehicle has moved within the allowable distance range in addition to the grace period to determine whether the vehicle has been stolen, and the stolen vehicle repeatedly moves and stops at appropriate timing. Thus, the theft can be detected even if the holding timer is restarted and a recovery signal is issued.

When the theft is detected at the monitoring center 6, the notified supervisor notifies the registered contact of the system user of the abnormality, and responds to the personnel carrying the nearest response terminal 4 to the stolen vehicle. The identification is performed based on the position information transmitted by the user terminal 4, the characteristics of the stolen vehicle are notified, and a search is performed.

According to the vehicle theft detection system, the mobile terminal 2 transmits a signal to the monitoring center 6 in accordance with various conditions, the theft of determining whether the _c monitoring center 6 monitoring center 6 performed by a mobile terminal installed in a vehicle By making a judgment while grasping the state of 2, the false reports and unreports are suppressed. Industrial applicability

As described above, the moving object monitoring system according to the present invention, the moving object monitoring device used in the monitoring center, the moving object monitoring method, and the movement judging method in the moving object monitoring include a vehicle such as an automobile, cash, and a work of art. It is possible to monitor the occurrence of theft, etc., to prevent the occurrence of damage, and to search for people and pets when they are lost. In particular, the present invention is highly convenient because the user does not need to be aware of wherever the user moves in the entire area where the monitoring service is provided. In addition, false reports and unreported reports are suppressed and monitoring accuracy is high. Due to these features, the present invention is suitable for a mobile monitoring system that targets a large number of users and provides services in a wide area.

Claims

The scope of the claims

1. A mobile monitoring system for monitoring the position of the mobile at the monitoring center based on a notification from a mobile terminal carried by the mobile to a monitoring center, wherein the mobile terminal includes:

An operation unit for setting start and stop of the monitoring operation;

A positioning unit for acquiring position information of the mobile terminal;

A notifying unit for notifying the monitoring center of a monitoring set signal and a monitoring cancellation signal corresponding to the start and stop of the monitoring operation, and the position information at the start of the monitoring operation and the subsequent position information, respectively;

Has,

The monitoring center is

The position information at the start of the monitoring operation reported from the mobile terminal is stored, and thereafter, from the monitoring set signal to the monitoring release signal based on the position information reported from the mobile terminal. A monitoring unit that monitors the position of the mobile terminal, and determines that an abnormality has occurred in the mobile object when the mobile terminal is separated from the position at the start of the monitoring operation by a predetermined distance or more. thing,

A moving object monitoring system characterized by the following.

2. From the mobile terminal carried by the mobile unit, a monitoring set signal according to the start of the monitoring operation, the position information of the mobile terminal at the start of the monitoring operation, and the position information of the mobile terminal thereafter are transmitted to the monitoring center. Reporting to

Determining that an abnormality has occurred when receiving position information separated by a predetermined distance or more from the position information at the start of the monitoring operation;

A moving object monitoring method, comprising:

3. a step of notifying the monitoring center of a monitoring set signal corresponding to the start of the monitoring operation and the position information of the mobile terminal at the start of the monitoring operation, from the mobile terminal not carried by the mobile object;

Setting a movement permission error of the moving object based on the monitoring set signal received by the monitoring center and the position information;

A moving object monitoring method, comprising:

4. obtaining position information including error information on the moving object;

A step of determining an error region from the acquired position information;

Determining overlap between a plurality of error regions corresponding to a plurality of position information obtained at different times for the same moving object;

Outputting a message indicating that the moving object has moved when there is no overlap, and a movement judging method in monitoring the moving object, comprising:

5. Receiving means for receiving position information including error information regarding the moving object,

Error region determining means for determining an error region based on the error information,

Determining means for determining overlap between a plurality of error regions corresponding to a plurality of position information obtained for the same moving object;

Output means for outputting that the moving body has moved when the determination means determines that there is no overlap;

A moving object monitoring device, comprising: monitoring movement of the moving object.

6. The mobile monitoring device according to claim 5,

The mobile object monitoring device, wherein the plurality of pieces of position information are reference position information and position information received most recently, or position information received before or after time.

7. The mobile terminal, which is carried by the mobile unit and receives a positioning signal corresponding to its own position, transmits the positioning signal to the monitoring center, and the monitoring center moves the mobile unit based on the positioning signal. A mobile monitoring system for monitoring

The monitoring center is

Receiving means for receiving the positioning signal from the mobile terminal,

Error region determining means for determining an error region consisting of a point and an error range based on the received positioning signal;

A determination means for determining overlap between a plurality of error regions obtained for the same moving object;

A moving object monitoring system comprising:

8. The mobile monitoring system according to claim 7,

The plurality of error regions include a positioning signal received by the mobile terminal at a reference position and a positioning signal received most recently by the mobile terminal, or a positioning signal received by the mobile terminal before or after time. A moving object monitoring system characterized in that the error region is determined based on the moving object.

9. A mobile monitoring system for monitoring the occurrence of theft of the mobile at the monitoring center based on a notification from a mobile terminal carried by the mobile to the monitoring center, wherein the mobile terminal includes:

A sensor unit for detecting the occurrence and disappearance of a predetermined event that may occur when the mobile body is stolen; and transmitting an abnormal signal to the monitoring center in response to the detection of the occurrence of the predetermined event, and a recovery signal in response to the detection of the disappearance of the predetermined event. And a reporting unit for reporting to the monitoring center

The monitoring center is

A timer that starts timing when receiving the abnormal signal, and ends timing when receiving the recovery signal;

A determining unit that determines that theft has occurred based on the time value of the time unit exceeding a predetermined grace time;

A moving object monitoring system, comprising:

10. The mobile monitoring system according to claim 9, wherein:

The mobile terminal further includes a holding unit that holds a report of the restoration signal, wherein the holding unit includes:

When the occurrence of the predetermined event is detected, a hold state for a predetermined period is started,

When the occurrence of the predetermined event is newly detected during the hold state, the duration of the hold state is extended,

The mobile unit monitoring system, wherein the notification unit notifies the recovery signal when the hold state ends.

11. The mobile monitoring system according to claim 10, wherein the notification unit notifies the abnormal signal when the hold state starts. 11.

1 2. A mobile monitoring system that monitors the occurrence of theft of the mobile at the monitoring center based on a notification from a mobile terminal carried by the mobile to the monitoring center,

The eyes ¹

The monitoring center is

When the abnormal signal is received, a holding state for a predetermined period is started, and when the abnormal signal is newly received during the holding state, a holding unit for extending the duration of the holding state,

A timer that counts the duration of the hold state;

A determining unit that determines that theft has occurred based on the duration exceeding a predetermined grace period;

A moving object monitoring system, comprising:

13. In the mobile monitoring system according to any one of claims 9 to 12,

The moving body monitoring system, wherein the sensor unit includes a vibration sensor that detects vibration as the predetermined event.

14. The mobile monitoring system according to any one of claims 9 to 13,

The mobile terminal further comprises:

An operation unit for setting the start and stop of the theft monitoring operation;

A positioning unit that acquires the current location information of the mobile terminal;

Has,

The notifying unit further includes:

A monitoring set signal and a monitoring release signal are reported to the monitoring center according to the start and stop of the theft monitoring operation, respectively,

When reporting various signals to the monitoring center, the location information is also reported together,

Based on the position information, determine the travel distance of the mobile terminal from the time of reporting the monitoring set signal,

Using the fact that the moving distance exceeds a predetermined allowable distance for determining the occurrence of theft.

15. The moving object monitoring system according to claim 1, wherein the operation unit is separable from the portable terminal body.