CN102662182A - Mobile object positioning tracking information acquisition apparatus and operation method thereof - Google Patents
Mobile object positioning tracking information acquisition apparatus and operation method thereof Download PDFInfo
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Abstract
The invention discloses a mobile object positioning tracking information acquisition apparatus and an operation method thereof, and the apparatus and the method can be applied for monitoring of various kinds of mobile objects, such as a mobile danger source, a mobile pollution source, valuable articles in transportation, mobile machinery, a vehicle and an aircraft, in an area covered by a 2G or a 3G network. The apparatus is formed by a control unit, a GPS unit, an expansion unit, a wireless communication unit and a power supply management unit. The GPS unit receives a satellite signal, converted into positioning data and sending to the control unit through a USART interface. The expansion unit receives collected information and sends to the control unit. The control unit receives the information sent by the GPS unit and the expansion unit, carries out analysis and processing and then sends to the wireless communication unit through the USART interface. The wireless communication unit receives the information sent by the control unit and sends the information to a remote wireless communication terminal through the 2G or the 3G network. The power supply management unit provides power for the GPS unit, the control unit and the wireless communication unit.
Description
Technical field
The present invention relates to a kind of moving target location trace information harvester and operation method thereof; Be applicable to the various moving target position monitors of mobile dangerous matter sources, mobile pollution source, valuables in transit, mechanically moving, vehicle and aircraft in 2G or the 3G network overlay area, relate to fields such as industry, agricultural, logistics, communications and transportation.
Background technology
Along with the development of national economy technology, domestic passenger flow transportation and logistics transportation are flourishing day by day, comprising various chemical raw materials, valuables and various vehicle.Though transportation technology reaches its maturity, various accidents still constantly take place.On June 5th, 2009, burning takes place and causes wrecked 74 people of 27 people injured in Chengdu, Sichuan No. 9 buses bridge place under the grade separation of Sichuan and Shanxi; On June 7th, 2011, the domestic Hang Xin scape of Jiande highway chemicals phenol is revealed in transit and is caused Xinanjiang River part water pollution; On January 31st, 2012, the domestic 20 tons of liquefied ammonia groove tank cars in Dezhou, Shandong are revealed in transit, in critical condition.In order to strengthen to safety management to mobile dangerous matter sources (mainly referring to hazardous chemical, explosive transport vehicle, ship); Ensure that region securities such as road, water route are unimpeded, national Administration of Work Safety Supervision, the Ministry of Public Security, Ministry of Communications have issued " about strengthening the emergency notice of hazardous chemical road transport safety management " and national associated documents such as " about the instruction of strengthening and standard highway Water Transport Industry satnav application system is built ".
There are following two kinds of problems in the monitoring of moving moving targets such as dangerous matter sources at present: first; To the mode that the monitoring of moving target takes artificial observation or manually-operated monitoring instrument to monitor, serious waste human resources, shortage real-time and due science; The second, the monitoring of moving target is not combined with the real time position of target, even cause the situation of noting abnormalities but can't report accurately that the position affects best rescue opportunity adversely, cause situation to enlarge.
Summary of the invention
Technical matters:
The purpose of this invention is to provide a kind of moving target location trace information harvester and operation method thereof; Be applied to move the status monitoring of dangerous matter sources, mobile pollution source, valuables in transit, mechanically moving, vehicle and aircraft and similar various moving targets; Can solve non real-time property, non-science property and waste of human resource to moving target is artificially observed or the manual operation instrument monitoring causes; Simultaneously can carry out real-time positioning to moving target; Can when the moving target situation occurred, accurately seek and it is rescued, further enlarge to prevent the state of affairs.
This method; Both can gather the moving target monitoring information in real time; Simultaneously can with the moving target geographical location information with carry out teletransmission after it combines; Make remote terminal can monitor the current state of moving target and the geographic position of accurate location moving target in real time, effectively solve the aforementioned problems in the prior.
Technical scheme:
A kind of moving target of the present invention location trace information harvester is characterized in that comprising control module, GPS unit, expanding element, wireless communication unit and PMU; Said GPS unit comprises gps antenna subelement, surface acoustic wave GPS filtering subelement, GPS modular sub-units and reserve battery subelement; Said control module comprises processor subelement and debugging interface subelement; Said wireless communication unit comprises wireless communication module subelement and usim card subelement; Said expanding element comprises expansion interface circuit, and expansion interface circuit is connected with said processor subelement; Said PMU is said GPS unit, control module and wireless communication unit power supply;
The output terminal of said gps antenna subelement connects the input end of surface acoustic wave GPS filtering subelement; The output terminal of surface acoustic wave GPS filtering subelement connects the input end of GPS modular sub-units; The data input pin of the data output end connection processing device subelement of GPS modular sub-units, the command input end of GPS modular sub-units connects the order output terminal of said processor subelement; The power output end of said reserve battery subelement connects the power input of said GPS modular sub-units;
The data input pin of said wireless communication module subelement connects the data output end of said processor subelement; The data output end of said wireless communication module subelement connects the data input pin of usim card subelement;
GPS unit receiving satellite signal converts available locator data to and sends to control module; Control module receives the locator data of GPS unit transmission and the data that expanding element sends, and carries out sending to wireless communication unit after the dissection process; Expanding element receives the information that will gather and sends to control module; Wireless communication unit receives the data of control module transmission and data is sent to wireless public network; PMU is that whole device is supplied power.
The GPS unit comprises gps antenna subelement, surface acoustic wave GPS filtering subelement, GPS modular sub-units and reserve battery subelement, and the gps antenna subelement is used for receiving satellite signal and sends signal to surface acoustic wave GPS filtering subelement carrying out filtering; The GPS modular sub-units converts filtered satellite-signal to data available; The reserve battery subelement is a GPS modular sub-units stand-by power supply, to realize GPS modular sub-units warm start function.
Control module comprises processor subelement and debugging interface subelement; The processor subelement is used for sending binary order to the GPS unit and is configured; The locator data and the information that obtains that receive and resolve the output of GPS unit are carried out software filtering; Receive the expanding element information transmitted,, and locating information and Information Monitoring are sent to wireless communication unit carry out teletransmission to the wireless communication unit sending controling instruction; The debugging interface subelement is used for to processor subelement loading source program and debugs.
Expanding element comprises expansion interface J1 and expansion interface J2, and expansion interface is connected with said processor subelement.
Wireless communication unit comprises wireless communication module subelement and usim card subelement, and the wireless communication module subelement is used to receive the information of control module transmission and send it to remote terminal; The usim card subelement is used for wireless public network service to wireless communication module being provided; Be made up of usim card, usim card groove and peripheral circuit thereof, its SIM_DETECT, SIM_RESET, SIM_CLK, SIM_DATA, SIM_VSIM pin are connected with SIM_DETECT, SIM_RESET, SIM_CLK, SIM_DATA, the SIM_VSIM pin of wireless communication module subelement respectively.
PMU comprises the first power supply subelement, second source subelement and the 3rd power supply subelement, and the first power supply subelement becomes the 5v power supply with vehicle-mounted 24～36v power source conversion; The second source subelement becomes the 4v power supply with the 5v power source conversion,, and supplies power for wireless communication unit in case power down suddenly for reserve battery charging; It is control module and the power supply of GPS unit that the 3rd power supply subelement becomes the 3.3v power supply with the 4v power source conversion.
The GPS modular sub-units is transferred to the processor subelement with locator data and resolves; The GPS modular sub-units is made up of GPS module " U2 " and peripheral circuit; The processor subelement is made up of AVR family chip " U1 " and peripheral circuit thereof; Communicate by letter between the two by the connection realization of USART mouth, promptly the USART mouth TX of chip U1, RX pin are connected with USART mouth RX, the TX pin of module U2 through resistance respectively, to accomplish the transmitting-receiving of information.
Expanding element is given the processor subelement with information transmission; Information via carries out teletransmission after handling; Expanding element is made up of expansion interface " J1 " and " J2 ", can connect sensor and accomplish information acquisition, and the pin of J1 links to each other with the simulating signal input pin of U1 respectively; The pin of J2 links to each other with the IO pin of U1 respectively, to accomplish the transmission of analog information and numerical information respectively.
Locating information after the processor subelement will be resolved sends to said wireless communication module subelement with the information that collects and carries out teletransmission; The wireless communication module subelement is made up of 2G or 3G wireless communication module " U3 " and peripheral circuit thereof; Communication between processor subelement and the wireless communication module subelement is by the completion that is connected of USART interface; To realize the function of said processor subelement to said wireless communication module subelement transmission order and transmission information, the wireless communication module subelement sends to wireless public network with information more then.
The operation method of moving target location trace information harvester comprises the steps:
(1) after device powered on, the processor subelement carried out initialization, and stack pointer is set, and opens global interrupt, initialization USART0 interface and USART1 interface, and the reception that can not enable the USART0 interface this moment is interrupted;
(2) the processor subelement sends AT instruction (Attention command to the wireless communication module subelement; It is the order that terminal device sends to terminal adapter; Every function that the AT instruction all can realize fixing); Accomplish the unlatching network and report service, open the service of higher-layer protocols reporting events, activate usim card, activated protocol stack, search network and add five steps of wireless public network, make its start and insert wireless public network;
(3) the processor subelement sends binary order to the GPS modular sub-units and is configured the big shift point filtering of realization;
(4) the GPS modular sub-units receives the geographical location information through gps antenna subelement and surface acoustic wave GPS filtering subelement, with converting locator data behind the information analysis to, and the big shift point of filtering, pass through serial ports then and send to the processor subelement;
(5) the processor subelement is opened the reception interruption of USART0 interface, receives the locator data that the GPS module is sent;
(6) after the processor subelement received effective locator data, the reception of shielding USART0 interface was interrupted, the kind of data discrimination, and resolve respectively, processing such as filtering, can obtain the information such as geographical location information and module status of moving target;
(7) the processor subelement will be handled through the information that expansion interface J1 receives, to obtain information needed and correct information format;
(8) the processor subelement sends AT instruction (Attention command to wireless communication module U3; It is the order that terminal device sends to terminal adapter; Every function that the AT instruction all can realize fixing), opens its short message service, confirm information transmission form, information mode parameters, terminal character sets form and corresponding destination number; The data transmission that will send is then given wireless communication module, through it information is sent to wireless public network;
(9) behind the time-delay certain hour, begin again to carry out, carry out information acquisition next time from step (5).
Beneficial effect:
1) the present invention is on the basis of systematically having studied and designed the trace information collection of moving target location; Design has also been developed a kind of moving target location trace information harvester and operation method thereof; To solve non real-time property, non-science property and waste of human resource effectively to moving target is artificially observed or the manual operation instrument monitoring causes; Simultaneously can carry out real-time positioning to moving target; Can when the moving target situation occurred, accurately seek and it is rescued, further enlarge to prevent the state of affairs.
2) the present invention can accurately locate moving target owing to adopt the GPS technology, has characteristics such as bearing accuracy height, observation time weak point, global all weather operations, high-level efficiency, applied range.
3) 2G or the 3G wireless communication technology of the present invention's employing have the real-time online characteristic, and system does not have time-delay, need not taking turn and just can receive and dispatch the data that receive synchronously, can realize the real-time of moving target monitoring.
4) 2G or the 3G wireless communication technology of the present invention's employing; Characteristics with wide coverage; In its coverage, can realize all transmitting-receivings of monitoring information, dilatation simultaneously is unrestricted, the access place is unrestricted, can satisfy mountain area, small towns and trans-regional access demand.
5) PMU of the present invention's employing serves as the input power supply with vehicle-mounted 24-36v, is applicable to automobile scenarios, and subsequent use lithium battery and charging circuit thereof are contained in PMU inside simultaneously, can effectively prevent the device shut-down problem that the unexpected power down of power supply brings.
6) the present invention owing to adopted the practicality design, in the applicability, reduces its cost fully taking into account its device as far as possible in practical application in design.Notice its fastness simultaneously, weld before the deployment, and note the sealing of pad, make that its device can both operate as normal in environment such as humidity, dust, and phenomenons such as burn into line short or leak current fault can not take place.
7) the present invention is because the operating temperature range of each components and parts that adopts is big, make its device can-25C ° to+70C ° operate as normal, can make the present invention be suitable for the overwhelming majority of countries and the area in the world like this.
8) the present invention is owing to have top 6), 7) described in characteristics, can resist the high humidity of common intensity, high low temperature, dust storm, bump and corrosion etc., greatly strengthened the adaptive faculty of its device under rugged surroundings.
9) the present invention adopts jtag interface that the terminal is debugged its device and programming and programming program; Not only can control actuating equipment, can also detect the state of actuating equipment and give notice, its function effectively and reliable.
Description of drawings
Fig. 1 is the general principles block diagram of moving target location trace information harvester.
Fig. 2 is the software flow pattern of moving target location trace information harvester.
Fig. 3 is a control module schematic diagram in the trace information harvester of moving target location.
Fig. 4 is a GPS unit schematic diagram in the trace information harvester of moving target location.
Fig. 5 is an expanding element schematic diagram in the trace information harvester of moving target location.
Fig. 6 is a wireless communication unit schematic diagram in the trace information harvester of moving target location.
Fig. 7 is a PMU schematic diagram in the trace information harvester of moving target location.
Embodiment
Be elaborated in the face of technical scheme of the present invention down, but protection scope of the present invention is not limited to said embodiment.
A kind of moving target location trace information harvester and operation method thereof, its device The general frame is as shown in Figure 1, comprises control module, GPS unit, expanding element, wireless communication unit and PMU.GPS unit receiving satellite signal converts available locator data to and sends to control module; Control module receives the locator data of GPS unit transmission and the data that expanding element sends, and carries out sending to wireless communication unit after the dissection process; Expanding element receives the information that will gather and sends to control module; Wireless communication unit receives the data of control module transmission and data is sent to wireless public network; PMU is that whole device is supplied power.
Above-mentioned control module such as Fig. 3, it is made up of processor subelement 5 and debugging interface subelement 6.
Processor subelement 5 is made up of microprocessor chip U1 and peripheral circuit thereof, and microprocessor chip U1 wherein selects 8 high-grade microprocessor ATmega64L of high-performance, low-power consumption AVR of AT company for use.It has advanced risc architecture, the highest 8MHz frequency of operation, and the great majority instruction is accomplished in one-period, and arithmetic speed is high; 64kFlash, 4kSRAM and 4kEEPROM in the sheet; Support 6 kinds of sleep patterns such as battery saving mode, power-down mode; Have multiple bus and sufficient IO interface; Has A/D, D/A interface; Wide operating voltage range with 2.7V-5.5V; Has jtag interface with IEEE 1149.1 operating suchs; Have-55C ° is to+125C ° operating temperature range.
The data line of debugging interface subelement 6 links to each other with the jtag interface of microprocessor chip U1 through drawing the back on the resistance " R2～R5 ", and its " 1,3,5,9 " pin links to each other with " 57,56,55,54 " pin of microprocessor chip U1 respectively.
Function according to realizing at this device can be divided into microprocessor chip U1 with the lower part:
1) serial line interface 0; The USART0 mouth of microprocessor chip U1 links to each other with the USART mouth of GPS modular sub-units 3, and the locator data and the microprocessor chip U1 that are used for 3 transmissions of microprocessor chip U1 reception GPS modular sub-units send configuration informations to GPS modular sub-units 3;
2) serial line interface 1, and the USART1 mouth of microprocessor chip U1 links to each other with the USART mouth of wireless communication module subelement 7, is used for the monitor message that microprocessor chip U1 sends after handling to wireless communication module subelement 7;
3) processor cores, it can reference-to storage, carries out data operation, data check, data-switching, data transmission and handling interrupt.
Wherein, " 2 " pin of microprocessor chip U1 (the RX end of USART0 interface) links to each other with " 20 " pin (the TX end of USART interface) of GPS modular sub-units 3 through resistance R 14, and " 3 " pin (the TX end of USART0 interface) links to each other with " 21 " pin (the RX end of USART interface) of GPS modular sub-units 3 through resistance R 15; " 27 " pin of microprocessor chip U1 (the RX end of USART1 interface) links to each other with " 42 " pin (the TX end of USART interface) of wireless communication module subelement 7, and " 28 " pin (the TX end of USART0 interface) links to each other with " 43 " pin (the RX end of USART interface) of wireless communication module subelement 7.
Above-mentioned GPS unit such as Fig. 4, it is made up of gps antenna subelement 1, surface acoustic wave GPS filtering subelement 2, GPS modular sub-units 3 and reserve battery subelement 4.
The gps antenna subelement is made up of gps antenna and peripheral circuit thereof, and wherein gps antenna is selected the GPS vehicle active antenna for use, and the selection frequency is 1575.42MHZ, and supply voltage is 3.0-5.0V.Wherein 5 pins of gps antenna link to each other with " 4 " pin (Output unbalanced) of surface acoustic wave GPS filtering subelement 2, and link to each other with " 9 " pin (VCC_RF) of GPS modular sub-units with electric capacity " L2 " through resistance " R31 ".
Surface acoustic wave GPS filtering subelement is made up of surface acoustic wave filter and peripheral circuit thereof, and wherein surface acoustic wave filter is selected the B9444 chip of EPCOS company for use, and it is the low damage radio-frequency filter that is applied to the mobile GPS system; Filter impedance is 50 ohm; Low-down insertion attenuation, different channel signal transmitting selective is high, the short arc fluctuation; Available passband 2.0MHZ, have-30C ° is to+85C ° operating temperature range.Its " 1 " pin (Input unbalanced) links to each other with " 11 " pin (RF_IN) of GPS modular sub-units.
GPS modular sub-units 3 is made up of GPS module U2 and peripheral circuit thereof, and wherein GPS module U2 selects the NEO-5Q module of Switzerland u-blox company for use.The independent gps receiver that NEO-5Q is is characteristic with high performance u-blox 5 engine of positioning is applicable to space and the very strict powered battery mobile device of power consumption constraint.Under optimum condition, the NEO-5Q primary positioning time is less than 1s, and the horizontal location precision is less than 2m; The time pulse signal precision is 30ns, and maximum navigation renewal frequency is less than 4HZ, and velocity accuracy is 0.1m/s; Its supply voltage is 2.7-3.6v, and operating temperature range is-and 40C ° is to+85C °.
Above-mentioned expanding element such as Fig. 5, it is made up of expansion interface J1 and expansion interface J2." 2 " of J1 interface, " 4 ", " 6 ", " 8 " pin ground connection; Its " 1 ", " 3 ", " 5 ", " 7 " pin connect " 47～44 " pin (collection of simulant signal pin) of microprocessor chip U1, and simultaneously the J1 interface can connect 4 tunnel simulating signals that collect; " 2 " of J2 interface, " 4 ", " 6 ", " 8 ", " 10 ", " 12 ", " 14 ", " 16 " pin ground connection; Its " 1 ", " 3 ", " 5 ", " 7 ", " 9 ", " 11 ", " 13 ", " 15 " pin connect " 42～35 " pin (digital signal acquiring pin) of microprocessor chip U1, and simultaneously the J2 interface can connect 8 tunnel digital signals that collect.
Above-mentioned wireless communication unit such as Fig. 6, it is made up of wireless communication module subelement 7 and usim card subelement 4.
The wireless communication module subelement is made up of wireless communication module U3 and peripheral circuit thereof; Wherein wireless communication module U3 selects the LC6311 module that joins core science and technology for use; LC6311 is TD-SCDMA (HSDPA) dual-mode wireless module, and it supports that the inter-network automatic seamless switches between TD-SCDMA and gsm system, under the TD-SCDMA standard; Support up-downgoing asymmetric data transmittability, the up-downgoing message transmission rate can reach 384kbps respectively; It supports USART and two kinds of communication interfaces of USB, uses more conveniently and flexible, can satisfy the demand of different main control equipments; The ultrathin design that it adopts 2.9mm equipment height can conveniently be applied in smart mobile phone and the Various types of data card it, and inner integrated H.324 protocol stack makes the function of visual telephone realize more simple; Its inner integrated ICP/IP protocol can conveniently connect INTERNET.
As shown in Figure 6, the SIM_DETECT of wireless communication module U3, SIM_RESET, SIM_CLK, SIM_DATA, SIM_VSIM pin (" 52 ", " 51 ", " 50 ", " 49 ", " 48 " pin) are connected respectively with SIM_DETECT, SIM_RESET, SIM_CLK, SIM_DATA, the SIM_VSIM pin (" 8 ", " 2 ", " 3 ", " 6 ", " 1,6,7 " pin) of usim card groove through resistance.
Above-mentioned PMU such as Fig. 7, it is made up of the first power supply subelement 9, second source subelement 10 and the 3rd power supply subelement 11.
The effect of the first power supply subelement 9 is that vehicle-mounted 24～36v power source conversion is become the 5v power supply, and the voltage transitions key element that wherein relates to is WRS24S05-2W, and the first power supply subelement 9 is 10 power supplies of second source subelement.
The effect of second source subelement 10 is that the 5v power source conversion is become the 4v power supply,, and supplies power for wireless communication unit in case power down suddenly for reserve battery charging; The crucial battery charge element that wherein relates to is LTC4052, and LTC4052 is a lithium ion battery pulse charger, and its input voltage is 4.5-10v, and operating temperature range is-and 40C ° is to+85C °.
The effect of the 3rd power supply subelement 10 is that the 4v power source conversion is become the 3.3v power supply is the power supply of control module and GPS unit; The voltage transitions key element that wherein relates to is TPS73633, and TPS73633 is no capacitor transistor 400mA low dropout regulator, and it has reverse-current protection, and its input voltage is 1.7-5.5v, and operating temperature range is-and 40C ° is to+125C °.
According to chip and the connected mode that present embodiment is selected for use, the workflow of this routine moving target location trace information harvester is as shown in Figure 2, and it comprises:
Step 1) processor subelement 5 carries out initialization, and stack pointer is set, and opens global interrupt, initialization USART0 interface and USART1 interface, and the reception that can not enable the USART0 interface this moment is interrupted.
Step 2) processor subelement 5 sends AT instruction (Attention command to wireless communication module subelement 7; It is the order that terminal device sends to terminal adapter; Every function that the AT instruction all can realize fixing); Accomplish the unlatching network and report service, open the service of higher-layer protocols reporting events, activate usim card, activated protocol stack, search network and add five steps of wireless public network, make its start and insert wireless public network.
Step 3) processor subelement 5 sends binary order to GPS modular sub-units 3 and is configured, and realizes big shift point filtering.
3 beginnings of step 4) GPS modular sub-units periodically receive the geographical location information through gps antenna subelement 1 and surface acoustic wave GPS filtering subelement 2; With converting locator data behind the information analysis to; And the big shift point of filtering, send to processor subelement 5 through serial ports then;
Step 5) processor subelement 5 is opened the reception interruption of USART0 interface, receives the locator data that the GPS module is sent.
After step 6) processor subelement 5 received effective locator data, the reception of shielding USART0 interface was interrupted, the kind of data discrimination, and resolve respectively, processing such as filtering, can obtain the information such as geographical location information and module status of moving target.
Step 7) processor subelement 5 will be handled through the information that expansion interface receives, with obtain information needed and, correct information format.
Step 8) processor subelement 5 sends AT instruction (Attention command to wireless communication module U3; It is the order that terminal device sends to terminal adapter; Every function that the AT instruction all can realize fixing), opens its short message service, confirm information transmission form, information mode parameters, terminal character sets form and corresponding destination number; The data transmission that will send is then given wireless communication module, through it information is sent to wireless public network.
Behind the step 9) time-delay certain hour, begin again to carry out, carry out information acquisition next time from step 5.
As stated, although represented and explained the present invention that with reference to specific preferred embodiment it must not explain the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite that does not break away from the accompanying claims definition, can make various variations in form with on the details to it.
Claims (5)
1. a moving target location trace information harvester is characterized in that comprising control module, GPS unit, expanding element, wireless communication unit and PMU; Said GPS unit comprises gps antenna subelement, surface acoustic wave GPS filtering subelement, GPS modular sub-units and reserve battery subelement; Said control module comprises processor subelement and debugging interface subelement; Said wireless communication unit comprises wireless communication module subelement and usim card subelement; Said expanding element comprises expansion interface circuit, and expansion interface circuit is connected with said processor subelement; Said PMU is said GPS unit, control module and wireless communication unit power supply;
The output terminal of said gps antenna subelement connects the input end of surface acoustic wave GPS filtering subelement; The output terminal of surface acoustic wave GPS filtering subelement connects the input end of GPS modular sub-units; The data input pin of the data output end connection processing device subelement of GPS modular sub-units, the command input end of GPS modular sub-units connects the order output terminal of said processor subelement; The power output end of said reserve battery subelement connects the power input of said GPS modular sub-units;
The data input pin of said wireless communication module subelement connects the data output end of said processor subelement; The data output end of said wireless communication module subelement connects the data input pin of usim card subelement;
GPS unit receiving satellite signal converts available locator data to and sends to control module; Expanding element receives the information data that collects and sends to control module; Control module receives from the locator data of GPS unit and the data of expanding element, carry out dissection process after, pass to wireless communication unit; Wireless communication unit receives the data of control module transmission and data is sent to wireless public network; PMU is whole device power supply.
2. moving target according to claim 1 location trace information harvester; It is characterized in that said expanding element circuit comprises two expansion interface circuit J1 and J2; They are used for connecting respectively the output terminal of respective sensor; The input end of analog signal with the processor subelement of expansion interface circuit J1 links to each other, expansion interface circuit J2 with the processor subelement digital signal input end link to each other.
3. moving target according to claim 1 location trace information harvester is characterized in that said wireless communication module subelement is is the circuit of core with 2G or 3G wireless communication module circuit.
4. moving target according to claim 1 location trace information harvester is characterized in that said PMU is made up of the first power supply subelement, second source subelement and the 3rd power supply subelement;
The first power supply subelement becomes the 5v power supply with vehicle-mounted 24～36v power source conversion;
The second source subelement becomes the 4v power supply with the 5v power source conversion, is the reserve battery charging, and is the wireless communication unit power supply;
It is said control module and the power supply of GPS unit that the 3rd power supply subelement becomes the 3.3v power supply with the 4v power source conversion.
5. the operation method of the arbitrary described moving target of claim 1～4 a location trace information harvester is characterized in that comprising the steps:
(1) power on after; The processor subelement carries out initialization, and stack pointer is set, and opens global interrupt; The communication interface of initialization and GPS modular sub-units and with the communication interface of wireless communication module subelement, can not enable this moment to interrupt with the reception of the communication interface of GPS modular sub-units;
(2) the processor subelement sends the AT instruction to the wireless communication module subelement; Accomplish the unlatching network and report service, open the service of higher-layer protocols reporting events, activate usim card, activated protocol stack, search network and add wireless public network, make the wireless communication unit start and insert wireless public network; Said AT instruction is Attention command order, i.e. the terminal device order of sending to terminal adapter, every function that the AT instruction all can realize fixing;
(3) the processor subelement is configured to GPS modular sub-units transmission binary order, enables the surface acoustic wave GPS filter sub-unit in the GPS module;
(4) the GPS modular sub-units begins periodically to receive the geographical location information through gps antenna subelement and surface acoustic wave GPS filtering subelement; With converting locator data behind the information analysis to; And the big shift point of filtering, then through sending locator data to the processor subelement;
(5) unlatching of processor subelement is interrupted with the reception of the communication interface of GPS modular sub-units, gathers the locator data from the GPS module;
(6) after the processor subelement receives locator data; Shielding is interrupted with the reception of the communication interface of GPS modular sub-units; The kind of data discrimination, and resolve respectively, processing such as filtering, can obtain the geographical location information and the module status information of moving target;
(7) the processor subelement will be handled through the information data that expansion interface collects, to obtain information needed and correct information format;
(8) the processor subelement sends the AT instruction to wireless communication module; The short message service of open wireless communication module; Confirm information transmission form, information mode parameters, terminal character sets form and corresponding destination number; The data transmission that will send is then given wireless communication module, through it information is sent to wireless public network;
(9) after the time-delay, begin again to carry out, carry out information acquisition next time from step (5).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104992576A (en) * | 2015-07-23 | 2015-10-21 | 览意科技（上海）有限公司 | Flight vehicle searching device and searching method thereof |
| CN104992576B (en) * | 2015-07-23 | 2017-08-25 | 览意科技（上海）有限公司 | Aircraft device for searching and its finding method |
| CN105487434A (en) * | 2015-11-21 | 2016-04-13 | 广西南宁至简至凡科技咨询有限公司 | GPS based valuables tracking system |
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| CN102662182B (en) | 2015-05-06 |
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