CN104486385A - Wireless communication system of LNG (Liquefied Natural Gas) storage tank equipment - Google Patents
Wireless communication system of LNG (Liquefied Natural Gas) storage tank equipment Download PDFInfo
- Publication number
- CN104486385A CN104486385A CN201410720405.2A CN201410720405A CN104486385A CN 104486385 A CN104486385 A CN 104486385A CN 201410720405 A CN201410720405 A CN 201410720405A CN 104486385 A CN104486385 A CN 104486385A
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- Prior art keywords
- storage tank
- mobile device
- communication system
- wireless communication
- signal
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses a wireless communication system of LNG (Liquefied Natural Gas) storage tank equipment, and relates to the field of communication between measurement equipment of a vehicle-mounted movable liquefied natural gas storage tank and control center main station equipment. The system comprises the storage tank for loading LNG, a plurality of pieces of measurement equipment for measuring the state of the storage tank, mobile equipment for receiving a transmission signal of the measurement equipment, and the main station equipment for receiving, processing and feeding back a message of the mobile equipment, wherein the mobile equipment and the main station equipment are interconnected through a mobile communication network. According to the system, centralized monitoring of the vehicle-mounted LNG storage tank movable equipment by the main station equipment can be realized through the mobile communication network.
Description
Technical field
The present invention relates to the communications field between the measuring equipment of vehicle-mounted removable liquefied natural gas (LNG) storage tank and control centre's master device, the wireless communication system in particular between the measuring equipment of LNG storage tank and master device.
Background technology
Liquefied Natural Gas fuel cost is low, and wherein main component is methane, and after burning, harmful components are less, uses comparatively extensive in large-scale heavy goods vehicles as the fuel of engine.The natural gas of low temperature compression is filled with in LNG storage tank, its liquid level, the monitoring of pressure and temperature etc. for storage tank safe handling be indispensable, measuring-signal can be transferred in driving cabin for driver's monitoring by wire transmission mode by measuring equipment related to this, but only by the storage tank in driver's monitoring vehicle, the comprehensive degree grasped for the tank information of vehicle-mounted mode is inadequate, and driver lacks the understanding to measuring technique, measurement data is easily misread so that operate miss, redemption opportunity is missed in the danger early warning stage, if carry out centralized monitor to the measuring equipment of vehicle-mounted storage tank, then can avoid above situation, monitoring for certain measurement data also can be assessed the corresponding measuring equipment performance of storage tank, control for storage tank also can be more intelligent, but lack the centralized monitor technology of the measuring equipment to vehicle-mounted LNG storage tank at present.
Summary of the invention
The object of this invention is to provide a kind of LNG storage tank equipment wireless communication system, the centralized monitor of master device to vehicle-mounted LNG storage tank mobile device can be realized by mobile radio communication.
In order to solve the problems of the technologies described above, the present invention adopts technical scheme: a kind of LNG storage tank equipment wireless communication system, comprise the storage tank loading LNG, multiple measuring equipment for measuring described tank states, also comprise and receive the mobile device that described measuring equipment becomes the number of delivering letters, and receive the master device that mobile device Message Processing also does to feed back, pass through mobile radio communication between described mobile device and master device interconnected.
According to one embodiment of present invention, described mobile device comprises:
Mark/access unit, the contact of its unique identity networked for described mobile device and mobile device and base station;
Transmission channel, it is for transmitting the described change number of delivering letters;
R-T unit, connect transmission channel, it is for the transmission of the change number of delivering letters in transmission channel, and Signal reception;
Tdm controller, it is for controlling the time-division slot transmission in transmission channel of the change number of delivering letters;
Override mechanism, carries out priority queueing to the change number of delivering letters, and described tdm controller becomes the time sharing transmissions of the number of delivering letters according to two priority classes.
According to one embodiment of present invention, described override mechanism is according to becoming the data volume of the number of delivering letters, the priority of urgent mark measuring equipment, and tdm controller priority allocation time slot is to priority height person.
According to one embodiment of present invention, described master device comprises:
Access/recognition unit, its contact for master device and base station and distinguish mobile device;
R-T unit, it is for receiving the signal of described mobile device and sending feedback signal;
Signal transacting interactive unit, it supplies described mobile device make respective reaction for processing the signal of corresponding mobile device received and exporting described feedback signal in conjunction with external command.
According to one embodiment of present invention, described signal transacting interactive unit comprises processor module and operation display interface, processor module compares the signal of reception and the historical signal of storage and in operation display interface display analysis result, operation display interface inputs instruction by manual operation and exports as feedback signal.
According to one embodiment of present invention, described mobile radio communication is GSM network.
According to one embodiment of present invention, SMS communication is adopted between mobile device and master device.
According to one embodiment of present invention, the immediate base station of mobile device and its position is got in touch with, and when immediate base station changes because position of mobile equipment moves, mobile device carries out soft handover between base station and base station.
According to one embodiment of present invention, when base station is busy, the base station contact that mobile device selects all the other power the strongest.
According to one embodiment of present invention, described measuring equipment comprises the liquid level gauge measuring liquid level in storage tank, the pressure sensor measuring liquid-transport pipe-line pressure, measures the temperature sensor of tank environment temperature and measure at least one of obliquity sensor of tank inclination angle, and described measuring equipment becomes to measuring-signal the transmitter sending process with being also connected between mobile device.
After adopting technique scheme, the present invention compared with prior art has following outstanding advantages: the mobile device for radio communication established by the measuring equipment for vehicle-mounted LNG storage tank, master device is communicated with multiple mobile device by mobile radio communication, realizes the centralized monitor to vehicle-mounted LNG storage tank.
In addition, in a mobile device configuration preference mechanism and according to priority, time sharing transmissions is carried out to each change number of delivering letters, the timely order transfer of signal can be made, and signal of interest (this signal of interest is very likely early warning/alarm signal) obtains priority treatment.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of LNG storage tank equipment wireless communication system of the embodiment of the present invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, and therefore the present invention is by the restriction of following public concrete enforcement and concrete accompanying drawing.
What deserves to be explained is, the present invention is by complete for essential features elaboration, due to the complexity of communication system own, and relate to the research of network system and agreement, thus specifically not setting forth at this should technical characteristic incoherent with purport of the present invention, certainly, complete communication system should comprise the functional structure realizing other functions and should possess, and this description does not repeat it.
Fig. 1 shows a kind of LNG storage tank equipment wireless communication system, comprise the storage tank 1 loading LNG, multiple measuring equipment 2 for measuring described storage tank 1 state, also comprise and receive the mobile device 3 that described measuring equipment 2 becomes the number of delivering letters, and receive the master device 4 that mobile device 3 Message Processing also does to feed back, pass through mobile radio communication between described mobile device 3 and master device 4 interconnected.In Fig. 1 example, mobile radio communication adopts GSM (Global System for Mobile Communications, global system for mobile communications) network 5, it is Generation Mobile Telecommunication System net, be mobile communications network the biggest in the world at present, the frequency range of signal transmitting and receiving is 900MHz or 1800MHz.Along with the update of mobile communication technology, mobile radio communication of the present invention also can adopt renewal technology, such as 3 G mobile communication network, preferably covers mobile network the most widely.Adopt the communication system of mobile radio communication, because network is substantially covering the whole world, mobile device can carry out transfer of data by access network whenever and wherever possible.
In gsm system, except transmitting voice service, data service, also have short message service, what short message service transmission took is control channel, adopts SMS communication between mobile device 3 and master device 4, guarantee information can arrive destination reliably.
Concrete, in the present embodiment, described mobile device 3 comprises: mark/access unit 31, transmission channel 32, R-T unit 33, tdm controller 34 and have employed override mechanism 35.
Mark/access unit 31 is the unique identity being used as the networking of described mobile device 3, and the contact of mobile device 3 and base station, access network with set up maintenance link, such as in gsm system, mark/access unit 31 is SIM (subscriber identity module) card, wherein there is an identification number unique in mobile network, distinguished in communication process to make all mobile devices 3; GSM network 5 belongs to cellular network, Mobile Communication Service zoning is divided into orthohexagonal community one by one by cellular network, shape is similar to honeycomb, it is the user's service in this cell range in each Cell Setup base station, the distribution of cellular community can increase community access capacity, when mobile device 3 is in certain community, mobile device 3 accesses in this subzone network by mark/access unit 31, waits for paged or initiatively makes a call or initiate short message.
Transmission channel 32 is connected with R-T unit 33, first transmission channel 32 receives the change number of delivering letters of measuring equipment, the described change number of delivering letters is transferred to R-T unit 33, R-T unit 33 is for selection (the such as frequency range 900MHz of carrier wave frequency range, up link 905 ~ 915MHz, down link 950 ~ 960MHZ), message transmission rate is arranged, modulating and demodulating signal, encoding and decoding and receive and dispatch this carrier wave frequency range signal, in the present embodiment, R-T unit 33 sends to the R-T unit 42 of master device by becoming the number of delivering letters, the feedback signal of master device 4 R-T unit 42 can be received equally.
In the present embodiment, because each measuring equipment 2 becomes data volume and the urgent degree difference of the number of delivering letters, introduce override mechanism 35, for the high priority data process that the little urgency of data volume is high, processor (in the signal transacting interactive unit of master device) efficiency can be made higher, and make system responses critical information rapider, on the other hand, control the time-division slot transmission in transmission channel 32 of the change number of delivering letters, the burden of processor can be alleviated.
The mode of priority treatment, according to becoming the data volume of the number of delivering letters, the priority of urgent mark measuring equipment 2, tdm controller 34 priority allocation time slot, to priority height person, carries out priority queueing to the change number of delivering letters, and described tdm controller 34 becomes the time sharing transmissions of the number of delivering letters according to two priority classes.
The measuring equipment 2 of LNG storage tank 1 can comprise the liquid level gauge measuring liquid level in storage tank 1, measure the pressure sensor of liquid-transport pipe-line pressure, measure the temperature sensor of storage tank 1 ambient temperature, and one or more of the obliquity sensor at measurement storage tank 1 angle of inclination, described measuring equipment 2 becomes to measuring-signal the transmitter sending process with being also connected between mobile device 3, liquid level can be known in real time at mobile device 3 end of vehicle, pressure, temperature, the information such as inclination angle, transfer to master device 4 end and not necessarily is real-time, such as, when adopting SMS communication to send, primary information can be sent at regular intervals, about liquid level, pressure, temperature, the information such as inclination angle, liquid level information general data amount is larger and non-ly easily cause dangerous information, thus priority can be minimum, more seriously must process in time when pressure goes wrong, it is the highest that thus its priority is set, the difference of priority is by manually setting, make system be in optimum performance as far as possible, preferably, if a certain information displaying is abnormal rear processed, then priority thereafter can be demoted process.
In the present embodiment, described master device 4 comprises: access/recognition unit 41, R-T unit 42, and signal transacting interactive unit 43.
Access/recognition unit 41 corresponds to the mark/access unit 31 in mobile device 3, access/the recognition unit 41 of same master device 4 also has the identification number of identity in mobile network, for accessing identification identity behind community, also comprise recognition unit simultaneously, different mobile devices can be identified, in other words, access/recognition unit 41 for master device 4 and base station contact and distinguishes mobile device 3, the mobile device 3 communicated with master device 4 can be multiple.
The R-T unit 42 of master device 4 acts on identical with the R-T unit 33 in mobile device 3, for receiving the signal of described mobile device 3 and sending feedback signal, preferably, the data that R-T unit 42 receives can be transferred to memory by processor or directly be transferred to memory, or are directly transferred to processor process and show at display module.
Signal transacting interactive unit 43 is for processing the signal of the corresponding mobile device 3 received, and obtain described feedback signal in conjunction with external command (being inputted by user) and supply described mobile device 3 and make respective reaction, include the process to signal and man-machine interaction.
In the present embodiment, described signal transacting interactive unit 43 comprises processor module and operation display interface, processor is analyzed after receiving the signal of R-T unit 42, whether the signal received compares detection with historical signal abnormal, be appreciated that historical signal is stored in database (not shown), if emergency signal then gives alarm and feed back to mobile device 3, in the information of display interface display, such as pressure is excessive, temperature overheating etc., master device 4 end can know process in time, processor module compares the signal of reception and the historical signal of storage and in operation display interface display analysis result, operation display interface inputs instruction by manual operation and exports as feedback signal.
Mobile device 3 needs access network, preferably, mobile device 3 and immediate base station, its position are got in touch with, and that is, mobile device 3 is got in touch with the base station of residing community, access this subzone network, when immediate base station changes because position of mobile equipment moves, when needing handover, need again to access another community, but need keep can communication state, and thus mobile device 3 carries out soft handover between base station and base station.
If when there is access community, completely base station is busy for community inner capacities, the base station contact that mobile device 3 can select all the other power the strongest.Power detector is used for the parts of detection signal power in mobile communication, can make in the base station network that mobile device access power is stronger, ensures communication quality.
The present invention is the mobile device that the measuring equipment of vehicle-mounted LNG storage tank establishes for radio communication, and master device is communicated with multiple mobile device by mobile radio communication, realizes the centralized monitor to vehicle-mounted LNG storage tank.
In addition, in a mobile device configuration preference mechanism and according to priority, time sharing transmissions is carried out to each change number of delivering letters, the timely order transfer of signal can be made, and signal of interest (this signal of interest is very likely early warning/alarm signal) obtains priority treatment.
Although the present invention with preferred embodiment openly as above; but it is not for limiting claim; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible variation and amendment, the scope that therefore protection scope of the present invention should define with the claims in the present invention is as the criterion.
Claims (10)
1. a LNG storage tank equipment wireless communication system, comprise the storage tank loading LNG, multiple measuring equipment for measuring described tank states, it is characterized in that, also comprise and receive the mobile device that described measuring equipment becomes the number of delivering letters, and receive the master device that mobile device Message Processing also does to feed back, pass through mobile radio communication between described mobile device and master device interconnected.
2. LNG storage tank equipment wireless communication system according to claim 1, it is characterized in that, described mobile device comprises:
Mark/access unit, the contact of its unique identity networked for described mobile device and mobile device and base station;
Transmission channel, it is for transmitting the described change number of delivering letters;
R-T unit, connect transmission channel, it is for the transmission of the change number of delivering letters in transmission channel, and Signal reception;
Tdm controller, it is for controlling the time-division slot transmission in transmission channel of the change number of delivering letters;
Override mechanism, carries out priority queueing to the change number of delivering letters, and described tdm controller becomes the time sharing transmissions of the number of delivering letters according to two priority classes.
3. LNG storage tank equipment wireless communication system according to claim 2, is characterized in that, described override mechanism is according to becoming the data volume of the number of delivering letters, the priority of urgent mark measuring equipment, and tdm controller priority allocation time slot is to priority height person.
4. LNG storage tank equipment wireless communication system according to claim 1, it is characterized in that, described master device comprises:
Access/recognition unit, its contact for master device and base station and distinguish mobile device;
R-T unit, it is for receiving the signal of described mobile device and sending feedback signal;
Signal transacting interactive unit, it supplies described mobile device make respective reaction for processing the signal of corresponding mobile device received and exporting described feedback signal in conjunction with external command.
5. LNG storage tank equipment wireless communication system according to claim 4, it is characterized in that, described signal transacting interactive unit comprises processor module and operation display interface, processor module compares the signal of reception and the historical signal of storage and in operation display interface display analysis result, operation display interface inputs instruction by manual operation and exports as feedback signal.
6. LNG storage tank equipment wireless communication system according to claim 1, is characterized in that, described mobile radio communication is GSM network.
7. LNG storage tank equipment wireless communication system according to claim 6, is characterized in that, adopt SMS communication between mobile device and master device.
8. LNG storage tank equipment wireless communication system according to claim 6, it is characterized in that, the immediate base station of mobile device and its position is got in touch with, and when immediate base station changes because position of mobile equipment moves, mobile device carries out soft handover between base station and base station.
9. LNG storage tank equipment wireless communication system according to claim 8, is characterized in that, when base station is busy, and the base station contact that mobile device selects all the other power the strongest.
10. LNG storage tank equipment wireless communication system according to claim 1, it is characterized in that, described measuring equipment comprises the liquid level gauge measuring liquid level in storage tank, the pressure sensor measuring liquid-transport pipe-line pressure, the temperature sensor measuring tank environment temperature and at least one measured in the obliquity sensor of tank inclination angle, and described measuring equipment becomes to measuring-signal the transmitter sending process with being also connected between mobile device.
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CN201410720405.2A CN104486385A (en) | 2014-12-02 | 2014-12-02 | Wireless communication system of LNG (Liquefied Natural Gas) storage tank equipment |
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CN201410720405.2A CN104486385A (en) | 2014-12-02 | 2014-12-02 | Wireless communication system of LNG (Liquefied Natural Gas) storage tank equipment |
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CN108154673A (en) * | 2016-12-06 | 2018-06-12 | 罗伯特·博世有限公司 | The method of the measured value of transmission sensor, machine readable storage medium and sensor |
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WO2006006805A1 (en) * | 2004-07-09 | 2006-01-19 | Nuri Telecom Co., Ltd. | Remote system for detecting leakage of gas using analysis of gas usage pattern |
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CN108154673A (en) * | 2016-12-06 | 2018-06-12 | 罗伯特·博世有限公司 | The method of the measured value of transmission sensor, machine readable storage medium and sensor |
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