WO2002041653A1 - System for real-time location of people in a fixed environment - Google Patents
System for real-time location of people in a fixed environment Download PDFInfo
- Publication number
- WO2002041653A1 WO2002041653A1 PCT/US2001/045310 US0145310W WO0241653A1 WO 2002041653 A1 WO2002041653 A1 WO 2002041653A1 US 0145310 W US0145310 W US 0145310W WO 0241653 A1 WO0241653 A1 WO 0241653A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- identification
- group
- user
- tag
- information
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C11/00—Arrangements, systems or apparatus for checking, e.g. the occurrence of a condition, not provided for elsewhere
- G07C2011/02—Arrangements, systems or apparatus for checking, e.g. the occurrence of a condition, not provided for elsewhere related to amusement parks
Definitions
- the present invention relates generally to tracking systems, and more specifically to
- a defined environment such as a theme park provide several challenges.
- the system should be able to distinguish every individual in the park and separately track their
- the system should provide convenient access anywhere within the environment no matter how large and should operate effectively regardless of the extent of crowding.
- the system also should be accurate and provide updates on location every second or so as desired. This is particularly important in tracking fast moving children who become separated from their parents.
- FIG. 1 is a diagrammatic view of a tracking system according to one embodiment of the present invention illustrating monitoring sites, cell controllers ("cell cont.”), host computer, identification stations and tags and an example of communication
- FIG. 2 is a diagrammatic view of a graphical user interface (GUI) showing a video screen and selection buttons according to an embodiment of the invention
- Fig. 3 depicts a dialog box displayed on a GUI of an identification station according to
- Fig. 4 depicts a dialog box displayed on a GUI of an identification station according to an embodiment of the invention, providing buttons for indicating whether the user is lost or whether the user is looking for another individual of a group;
- FIG. 5 depicts a dialog box displayed on a GUI of an identification station according to an embodiment of the invention, showing an example of a map of an environment
- Fig. 6 depicts a dialog box displayed on a GUI of an identification station according to an embodiment of the invention, showing an example of a map of an environment
- Fig. 7 is a flow chart illustrating the flow of information from an identification station
- Fig. 8 is a flow chart illustrating the flow of information from an identification station
- Fig. 9a illustrates a dialog box in a group building mode displayed on a GUI at a
- Fig. 9b is a flow chart illustrating the building of a group on the GUI of Fig. 9a;
- Fig. 10a illustrates a dialog box in a group finding mode displayed on a GUI at a
- Fig. 10b is a flow chart illustrating the finding of a group on the GUI of Fig. 10a;
- Fig. 11a illustrates a dialog box in a tag returning mode displayed on a GUI at a
- Fig. 1 lb is a flow chart illustrating the turning in of a tag on the GUI of Fig. 1 la;
- Fig. 12a illustrates a dialog box in a tag swapping mode displayed on a GUI at a
- Fig. 12b is a flow chart illustrating the swapping of a tag on the GUI of Fig. 12a;
- Fig. 13a illustrates a dialog box in a group changing mode displayed on a GUI at a
- Fig. 13b is a flow chart illustrating the moving of an individual from one group to another on the GUI of Fig. 13a;
- FIG. 14 is a pictorial illustration of a closed environment implementing an embodiment
- FIG. 15 is pictorial illustration of a wrist identification band according to one embodiment of the invention.
- FIG. 16 is a pictorial illustration of an identification tag according to an embodiment of
- FIG. 17 is a schematic illustration of a system according to an embodiment of the present invention.
- the present invention provides a system for tracking in real-time the location of a group of individuals within a fixed environment and providing individuals of the group with the ability to locate any other individuals of the group.
- a system according to one embodiment of the invention includes: (a) an identification tag worn
- each individual of a group means for communicating with each tag as it moves with the individual through the environment and means for using the communication to determine the position of the tag in the environment; (c) identification stations distributed within the environment, the stations providing a "Locate" function or other means for activating a request that the system locate members of the group; (d) means for receiving the activation request from each location and for generating a map showing the location of each group member on the map; and (e) means for displaying
- the person wearing the proper identification tag receives the signal and the
- tag responds with a radio signal (at different frequency from that first sent) that includes the tag serial number, for example.
- the signal is received at the monitoring sites and relayed to the cell controllers.
- a tag-to-antenna distance based on the time between
- FIG. 1 is a diagrammatic view of an embodiment of the tracking system as applied to theme park. Individual 101 with an identification tag 102 walking on path 103 in the park comes in contact with radio signal 104 sent by antenna at monitoring site 105.
- the identification tag 102 responds with a radio signal (not shown) that is received by
- the cell controller 106 monitors the cell 105 that communicates with a cell controller 106.
- a host computer 107 which communicates with an
- Identification stations 108 may act as a kiosk for tagged users of the system to access and use its service properties.
- the identification stations 108 are strategically placed in
- the identification station 108 has a CPU and a graphical user interface (GUI), preferably a touch screen monitor or a display with a control such as a mouse.
- GUI graphical user interface
- the identification station 108 provides the user with the ability to locate and view the position of any identification tag in the group, to post messages on a private message board or to contact security, for
- Suggested platform requirements of an identification station include:
- Tags suitable for use in the system of the invention are well known in the art and are
- Such tags can receive spread spectrum
- the tag can be read at long ranges compared to conventional radio
- RFID frequency identification
- Tags are provided to each participating member of a group when they arrive at the
- identification tag serial numbers of the other members of the individual's group are
- a digital picture is described in further detail below.
- a digital picture is
- the software of the host computer stores each identification tag serial
- FIG. 2 is a schematic of a graphical user interface (GUI) 201 provided at each identification station 108, for example, for communication between the host computer and the individual user requesting location information.
- GUI graphical user interface
- the opening screen may include the trade name of the product
- the individual user When approaching the GUI, the individual user will select one of the two buttons before providing information on the identification of the individual.
- Fig. 3 depicts a dialog box 301 displayed on the video GUI of the identification station
- buttons that can be selected using mouse or
- Fig. 4 depicts a further GUI video display 401 of the identification station.
- the GUI includes a large video screen 402 with map 403 of the environment where tracking is occurring.
- "Locate" button 404 and "Lost” button 405 are located below the video screen.
- an icon with a picture of the individuals is displayed on the map at their location.
- the picture can be replaced by symbol and the GUI can display a key that
- Fig. 5 depicts another GUI video display 501 of the identification station.
- the GUI includes a large video screen 502 with map 503 of the environment where tracking is occurring showing the identities and location of individuals 504 on the map.
- "Locate” button 504 and “Lost” button 505 are shown below the large video display.
- Fig. 6 depicts a dialog box 301 displayed on the video GUI of the identification station
- the box includes prompt 602 requesting the individual to decide if he/she is looking for someone or is lost.
- Actuation of the "I'm Lost” button 603 prompts the individual to stay put and sends for security. Actuation of
- the "I'm Looking” button 604 activates the process to obtain assistance in meeting an
- Fig. 7 is a flow chart describing the flow of information from the identification station to the host computer when an individual user selects the "Locate" button at the identification station display. The user approaches the identification station seeking
- the identification station prompts the user with a dialog box (see e.g.. Fig. 3) requesting entry of his/her tag serial number using a keyboard or using a scanning device (shown as 703).
- the scanning device is preferably a bar code scanner for scanning a bar code unique to each individual tag.
- An identification station CPU sends the user tag serial number to the host computer
- the identification station then displays a bit map of the environment which is supplemented later by the information showing the location of individuals of the group.
- map is displayed only with the location of the individuals of the group.
- the host computer then sends the tag serial numbers of each individual of the group to the cell controller CPU (shown as 706) which then sends out a radio signal with the tag serial number for each individual from the antenna of each connected monitoring site (shown as 707).
- the designated in the radio signal receives the signal and the tag responds by transmitting a return signal containing the tag serial number (shown as 708).
- the tags receive the radio signal at one frequency and the signal is returned by the transmitter in the tag at a different frequency.
- the monitoring sites receive the return signal which is sent to the cell controller CPU
- TAD data is calculated at the host computer.
- Cell controllers with monitoring sites and antennae are well known in the art and are available commercially such as the "Local Positioning System (LPS) cell controller system sold by Pinpoint Corporation, having a place of business at Billerica, Mass.
- LPS Local Positioning System
- the host computer then sends the location information of each
- the map may be displayed for about one to two minutes before reverting to the opening screen. The map will be removed earlier if a user selects the "Locate” or “Lost” buttons.
- the system may be calibrated to provide an accuracy of 10 feet or less
- each tag transmits a unique chirp at a regular interval of, for example, 7 seconds.
- the chirps are received by the antennae of the monitoring sites
- the information is retrieved from a temporary storage, for example, of the host computer and is provided to the user at the identification station.
- the system retains the location information for each user for a fixed
- the system may store the location information for a floating 10- minute period.
- the system may store the location information for a floating 10- minute period.
- known position may be stored in the event of a lost or malfunctioning identification tag.
- Fig. 8 is a flow chart describing the flow of information from the identification station
- the identification station prompts the user with a dialog box (see e.g. Fig. 3) requesting entry of his/her tag serial number using a keyboard or by using a scanning
- the identification station then prompts the individual with a second dialog box (see, e.g. Fig. 6) displaying buttons "I'm Lost” or “I'm Looking.” If the individual selects the "I'm Lost” button, then the identification station displays a third dialog box (see e.g. Fig. 6) that asks the individual to confirm that they are lost or just looking to meet
- the system will instruct the lost user in accordance with the procedures and guidelines of the facility as to how to proceed in this situation. This may include display of a text message and audio message that both of which tell the user to wait by the identification station until security arrives (shown as 805).
- the host computer preferably simultaneously alerts security by providing the identity of the contacting identification station and the tag serial number of the lost individual (shown as 805).
- the group and sends a map for display at the identification station (shown as 806).
- the identification station responds with a voice and text message instructing the user that a security guard is being dispatched to the lost party and that the user should wait at the identification station
- the registration-station is preferably a module that enables quick setup of groups and entry
- the subject module may be designed as a completely
- An applet may be written to interface with a main software application on a main server
- the applet may reside in a Windows platform environment.
- the subject computer system may have pre-established grouping ability with simple function input of the individuals and their identification tag association.
- the registration-station may be a Winterm station in a thin client configuration; thereby, providing easy maintenance and support. Its function is to provide an end user interface for users- o set up and enter groups and eventually give
- a method of "breaking out” or aborting may also be provided.
- the first method of "breaking out” or aborting may also be provided.
- the registration station may
- FIGs. 9a through 13b illustrate the operation of a registration station according to one embodiment of the present invention.
- Figs. 9a and 9b illustrate the operation of the registration station during a group building mode. Referring first to Fig. 9a, a dialog
- box 900 on a graphic user interface (GUI) at a registration station is shown in a group
- the dialog box 900 comprises a menu portion 910 with a plurality of
- buttons for executing various functions are illustrated as highlighted in the group building mode.
- An instruction portion 920 provides assistance to the user by providing instructions on steps required from the user.
- a group identifier portion 930 is provided to identify the current group name, and an individual
- identifier portion 940 is provided to indicate the current individual user. Additionally, an individual demographic block 950 may be provided to allow specification of certain characteristics of the individual user. This information may be used for marketing
- the "Build Group” mode begins when an operator (an employee of an amusement park, for example) presses or selects the "Build Group” button 910a of the dialog box 900 shown in Fig. 9a (block 970).
- this step may be performed by a user who is a member of a group, for
- registration system seeking to register as a group of users. A member of the group
- scanning may be a bar code scanning or other appropriate scanning.
- the individual's information may be associated with an icon or a digital picture of the individual, for
- one member of the group is designated as the group master. Only the group master may be allowed to make changes to the group information such as the name of the group and the designations for the individuals.
- system allows the members to obtain location information for the other members of the
- only members of the group can obtain location information for other members of the group. No other visitors may obtain access to this information. Similarly, the members of the group may only obtain information regarding members of their group.
- a group may be divided into subgroups within
- two or more groups may be merged at a later time. For example, some members of a group may arrive separately from other members and may register separately. At a later time, the two groups may be merged into a "super group” . The original groups may be retained as "sub groups" of the "super group” .
- Additional individual members may also be added to a group at a later time.
- FIGs. 10a and 10b illustrate the operation of the registration station during a group
- a "Find Group” button 910b in the dialog box 900 is illustrated as highlighted in the group finding mode.
- the instruction portion 920 provides
- the "Find Group” mode begins when an operator presses or selects the "Find Group” button 910b of the dialog box 900 shown in Fig. 10a (block 1010). In a self-service embodiment, this step may be performed by a user who is a member of a group, for example. At block 1020, a user approaches the registration
- the system seeking to find members of a group and requests the operator to display the location information of the members of his group (block 1030).
- the operator scans the user's tag (block 1040), and the system uses database information relating to the group, including the tag serial numbers, to display the positions of the members on a monitor (block 1050). If desired and/or permitted by the group master, for example, the operator may modify the group information, including adding or deleting members of the group. Once completed, the operator presses the "Finish Group" button (block
- the group finding function may be performed at self-
- FIGs. 11a and lib illustrate the operation of the registration station during a tag returning mode. This function may be used if, for example, the user desires to leave
- a "Turn In Tags" button 910c in the dialog box 900 is
- the instruction portion 920 provides information specific to the tag returning mode.
- the "Turn In Tags" mode begins when an operator presses or selects the "Turn In Tags" button 910c of the dialog box 900 shown in Fig. 11a
- Figs. 12a and 12b illustrate the operation of the registration station during a tag swapping mode. This mode may be used if, for example, an issued tag is malfunctioning or low on battery.
- a "Replace a Tag" button 910d in the dialog box 900 is illustrated as highlighted in the tag swapping mode.
- the instruction portion 920 provides information specific to the tag swapping mode.
- the tag swapping mode begins when an operator presses or
- system updates the database information to modify the tag serial number associated with the user.
- the user continues to be displayed as a member of the group (block 1260).
- FIGs. 13a and 13b illustrate the operation of the registration station during a group
- This mode may be used if, for example, a member of one group seeks
- a "Move a Member" button 910e in the dialog box 900 is illustrated as highlighted in the group changing mode.
- the instruction portion 920 provides information specific to the
- the group changing mode begins when an operator presses or selects the "Move a Member" button 910e of the dialog box 900 shown in Fig. 13a (block 1310).
- a user approaches the registration system seeking to
- the user is accompanied by a member of the second group.
- the masters of both groups must be present to approve the change.
- the demographic information collected during the registration process e.g. , the group
- the information may be collected
- the demographic information may be combined with tracking information for
- the system may store the user's position in the environment for an entire day.
- the information may be used, for example, to determine where certain individuals go for entertainment within the environment and how long they stay at each attraction. Such information may be useful
- the information may be used to determine which attraction draws a younger age group so that products targeting that group may be advertised at that attraction.
- One embodiment of the present invention allows users to transmit messages to the other
- a user may use an identification station, for example, to enter a
- the system then transmits a signal to the identification tags of each of the other members causing the tags to, for example, light
- Another embodiment of the invention allows tracking of specific personnel or equipment. For example, the location of all security guards or custodians may be made
- the park administrator may efficiently dispatch
- identification tag for use with such a system.
- Fig. 14 illustrates a closed environment in which an embodiment of the invention may be implemented.
- the closed environment 10 may be an area such as an amusement park or a cruise ship.
- An entrance 12 to the closed environment 10 is provided with a registration station 14 at which users of a location system may register.
- the registration system 14 may comprise one or more input terminals through which the names of the users, for example, may be input into the system, and one or more servers to store and provide the information as requested.
- Identification tags according to
- the readers 16 may be strategically placed throughout the closed
- the readers 16 may take the form of any conventional antennas or receivers.
- One or more locator stations 18 may be provided throughout the amusement park as well.
- the locator stations 18 serve to provide the users access to the information regarding the location of other users, as described below in detail.
- the locator stations 18 serve to provide the users access to the information regarding the location of other users, as described below in detail.
- Fig. 15 illustrates a user identifier according to one embodiment of the invention.
- wrist identification band 21 is illustrated to be worn by a user on his/her wrist similar to a wrist watch.
- the wrist identification band 21 comprises a strap 23 for securing the
- a logo or indicia 25 may be provided on the
- the wrist identification band 21 also comprises an
- identification tag 27 for communication with an identification system.
- the identification tag 27 is described in further detail below and is more clearly illustrated in Fig. 16.
- the identification tag 27 comprises at least two components.
- the first component is a long-range transmitter 29 for allowing communication between
- the transmitter 29 is configured to transmit a signal identifying the tag and/or the user wearing the tag.
- the long-range transmitter 29 may be, for example, a model produced by RF Code, Inc., of Phoenix, Arizona, Model # 05101297-06.
- the range of the long- range transmitter may be customized for particular uses.
- the long-range transmitter 29 may be, for example, a model produced by RF Code, Inc., of Phoenix, Arizona, Model # 05101297-06.
- the range of the long- range transmitter may be customized for particular uses.
- the long-range transmitter 29 is configured to transmit a signal identifying the tag and/or the user wearing the tag.
- the long-range transmitter 29 may be, for example, a model produced by RF Code, Inc., of Phoenix, Arizona, Model # 05101297-06.
- the range of the long- range transmitter may be customized for particular uses.
- the long-range transmitter 29 may be, for example, a model produced by RF Code, Inc., of Phoenix, Arizona, Model
- transmitter has a range of 200-250 feet for use in most amusement parks or cruise
- the long range transmitter 29 transmits a chirp every 7.5 seconds.
- the chirp may be unique to each individual identification tag 27 and, therefore, unique
- an identification system installed in a closed area such as
- an amusement park is provided with a signal from each individual user every 7.5 seconds. It is noted that the various identification tags 27 are not required to transmit a chirp simultaneously. The chirp signal is used by the system not only to identify the user, but also to pinpoint the user's location within the closed environment 10. This
- the identification tag 27 also comprises a short-range passive component 32.
- the passive component 32 does not transmit a signal on a regular basis. Rather, information from the short-range passive component 32 may be read by another device. Information in the passive component 32 identifies the identification tag 27 as well as the user, similar to the information
- the location system associates the information with the user and/or the identification tag 27.
- the short-range passive component 32 is an RFID Texas Instruments Model Number RI-TRP-REPH- ⁇ ⁇ .
- the short-range passive component 32 offers immediate information to the user.
- the short-range passive component 32 may provide immediate identification to a locator system, as described below in greater detail.
- Fig. 17 illustrates the communication paths between the different components of an
- wrist identification bands 21 are issued to each individual. Information relating to the issued wrist identification bands 21 and the
- the identification server 34 is provided with data which includes a group comprising the individuals and the . wrist identification bands 21 issued to those individuals.
- the readers 16 transmit information relating to the chirps to the identification server 34, and the identification server 34 determines the location of the user based on that information.
- the readers 16 may be provided with
- the identification server 34 is provided with
- locator station 18 uses a locator station 18 to acquire the desired information.
- locator station 18 At the locator station 18,
- the user may present the wrist identification band 21 to a locator terminal.
- the locator terminal of the locator station 18 may communicate with the short-range passive component 32 to obtain the information on the particular wrist identification band 21 worn by the user.
- a signal from the locator terminal causes the short range passive component 32 to transmit a signal identifying the particular wrist identification band 21.
- the locator station 18 communicates with the identification server 34 to obtain information identifying the group to which the
- the identification server 34 may access the last
- the locator station 18 may
- the locator may be provided with the locations of each member of the users group. This information may be provided to the user in several ways. In a preferred embodiment, the locator
- locations of the individual groups members may be displayed.
- the information displayed to the user may be updated as the identification server 34 receives updated locations of the other members of the group through the reception of chirps by the readers 16.
- the present system can be used to improve safety of children particularly at large facilities such as theme parks or casinos because it can locate children, parents and even
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01996980A EP1410651A4 (en) | 2000-11-14 | 2001-11-14 | System for real-time location of people in a fixed environment |
AU2002220030A AU2002220030A1 (en) | 2000-11-14 | 2001-11-14 | System for real-time location of people in a fixed environment |
CA002431872A CA2431872A1 (en) | 2000-11-14 | 2001-11-14 | System for real-time location of people in a fixed environment |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24818800P | 2000-11-14 | 2000-11-14 | |
US60/248,188 | 2000-11-14 | ||
US09/992,668 US20020080198A1 (en) | 2000-11-14 | 2001-11-13 | System for real-time location of people in a fixed environment |
US09/992,668 | 2001-11-13 | ||
US09/992,872 | 2001-11-13 | ||
US09/992,872 US6747562B2 (en) | 2001-11-13 | 2001-11-13 | Identification tag for real-time location of people |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002041653A1 true WO2002041653A1 (en) | 2002-05-23 |
WO2002041653B1 WO2002041653B1 (en) | 2002-09-26 |
Family
ID=27400100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/045310 WO2002041653A1 (en) | 2000-11-14 | 2001-11-14 | System for real-time location of people in a fixed environment |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1410651A4 (en) |
AU (1) | AU2002220030A1 (en) |
CA (1) | CA2431872A1 (en) |
WO (1) | WO2002041653A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006046068A1 (en) * | 2004-10-29 | 2006-05-04 | Salem Automation Limited | Tracking apparatus |
WO2006133487A1 (en) * | 2005-06-14 | 2006-12-21 | Adina Resources Pty Ltd | Method and means for tracking people and objects with active tags |
DE102006034857A1 (en) * | 2006-07-25 | 2008-01-31 | Endress + Hauser Process Solutions Ag | Method and device for locating persons in automation systems |
EP2962930A1 (en) * | 2014-07-03 | 2016-01-06 | Astrium GmbH | Improving the safety on-board of large vehicles for many passengers |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106060773B (en) * | 2016-05-09 | 2019-07-19 | 腾讯科技(深圳)有限公司 | Object positioning system, method and device |
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US5987421A (en) * | 1998-02-05 | 1999-11-16 | Morfun Systems, Inc. | Computerized system and method for locating individual members of discrete groups and for electronically registering and holding the ' groups position in waiting lines |
JP2000111648A (en) * | 1998-10-07 | 2000-04-21 | Ntt Data Corp | Position detecting system and position detecting device |
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AU4715999A (en) * | 1998-06-24 | 2000-01-10 | Pinpoint Corporation | Dual mode tracking system |
AU2086401A (en) * | 1999-12-22 | 2001-07-03 | Axcess Inc. | Method and system for operating an amusement park |
US6424264B1 (en) * | 2000-10-12 | 2002-07-23 | Safetzone Technologies Corporation | System for real-time location of people in a fixed environment |
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2001
- 2001-11-14 EP EP01996980A patent/EP1410651A4/en not_active Withdrawn
- 2001-11-14 AU AU2002220030A patent/AU2002220030A1/en not_active Abandoned
- 2001-11-14 WO PCT/US2001/045310 patent/WO2002041653A1/en not_active Application Discontinuation
- 2001-11-14 CA CA002431872A patent/CA2431872A1/en not_active Abandoned
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JPH1090387A (en) * | 1996-09-11 | 1998-04-10 | Syst Kogaku Kk | Moved position retrieving system |
US5987421A (en) * | 1998-02-05 | 1999-11-16 | Morfun Systems, Inc. | Computerized system and method for locating individual members of discrete groups and for electronically registering and holding the ' groups position in waiting lines |
JP2000111648A (en) * | 1998-10-07 | 2000-04-21 | Ntt Data Corp | Position detecting system and position detecting device |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006046068A1 (en) * | 2004-10-29 | 2006-05-04 | Salem Automation Limited | Tracking apparatus |
WO2006133487A1 (en) * | 2005-06-14 | 2006-12-21 | Adina Resources Pty Ltd | Method and means for tracking people and objects with active tags |
DE102006034857A1 (en) * | 2006-07-25 | 2008-01-31 | Endress + Hauser Process Solutions Ag | Method and device for locating persons in automation systems |
EP2962930A1 (en) * | 2014-07-03 | 2016-01-06 | Astrium GmbH | Improving the safety on-board of large vehicles for many passengers |
Also Published As
Publication number | Publication date |
---|---|
EP1410651A1 (en) | 2004-04-21 |
CA2431872A1 (en) | 2002-05-23 |
EP1410651A4 (en) | 2005-04-13 |
WO2002041653B1 (en) | 2002-09-26 |
AU2002220030A1 (en) | 2002-05-27 |
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