CN102662182B - 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 objects location trace information harvester and operation method thereof, be applicable to the mobile dangerous matter sources in 2G or 3G network overlay area, mobile pollution source, the various Moving objects location monitoring of valuables, mechanically moving, vehicle and aircraft in transit, relate to the fields such as industry, agricultural, logistics, communications and transportation.
Background technology
Along with the development of national economy technology, the transport of domestic passenger flow and logistics transportation day by day flourishing, comprising various chemical raw material, valuables and various vehicle.Although transportation technology reaches its maturity, various accident still constantly occurs.On June 5th, 2009, there is burning and causes wrecked 74 people of 27 people injured in Chengdu, Sichuan No. 9 bus bridge place under the grade separation of Sichuan and Shanxi; On June 7th, 2011, Jiande domestic Hang Xin scape highway chemistry product 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 the safety management to mobile dangerous matter sources (mainly referring to hazardous chemical, explosive transport vehicle, ship), ensure that the region security such as road, water route is unimpeded, national Administration of Work Safety Supervision, the Ministry of Public Security, Ministry of Communications have issued the national associated documents such as " emergency notice about strengthening hazardous chemical road transport safety management " and " instruction about reinforcement and specification Highway and Waterway carrier satnav the application system construction ".
There are following two kinds of problems in the monitoring of the moving targets such as current mobile dangerous matter sources: first, to the mode that the monitoring of moving target takes artificial observation or manual operation monitoring instrument to monitor, serious waste human resources, shortage real-time and due science; The second, do not have to combine with the real time position of target to the monitoring of moving target, even if cause the situation of noting abnormalities but accurately cannot report that position affects best rescue opportunity adversely, causes situation to expand.
Summary of the invention
Technical matters:
The object of this invention is to provide a kind of Moving objects location trace information harvester and operation method thereof, be applied to mobile dangerous matter sources, mobile pollution source, valuables in transit, mechanically moving, the status monitoring of vehicle and aircraft and similar various moving targets, can solve the non real-time nature that moving target is artificially observed or manual operation instrument monitoring causes, not sicentific and waste of human resource, can locate in real time moving target simultaneously, can accurately find when moving target situation occurred and it is rescued, expand further to prevent the state of affairs.
This method, both can Real-time Collection moving target monitoring information, teletransmission can be carried out after combined with it for moving target geographical location information simultaneously, make remote terminal can the current state of Real-Time Monitoring moving target the geographic position of accurate location moving target, effectively solve the aforementioned problems in the prior.
Technical scheme:
A kind of Moving objects location trace information harvester of the present invention, is characterized in that comprising control module, GPS unit, expanding element, wireless communication unit and Power Management Unit; Described GPS unit comprises gps antenna subelement, surface acoustic wave GPS filtering subelement, GPS module subelement and reserve battery subelement; Described control module comprises processor subelement and debugging interface subelement; Described wireless communication unit comprises wireless communication module subelement and usim card subelement; Described expanding element comprises expansion interface circuit, and expansion interface circuit is connected with described processor subelement; Described Power Management Unit is that described GPS unit, control module and wireless communication unit are powered;
The input end of the output terminal connecting surface sound wave GPS filtering subelement of described gps antenna subelement, the output terminal of surface acoustic wave GPS filtering subelement connects the input end of GPS module subelement, the data input pin of the data output end connection handling device subelement of GPS module subelement, the command input end of GPS module subelement connects the order output terminal of described processor subelement; The power output end of described reserve battery subelement connects the power input of described GPS module subelement;
The data input pin of described wireless communication module subelement connects the data output end of described processor subelement; The data output end of described 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 of expanding element transmission, sends to wireless communication unit after carrying out dissection process; Expanding element receives the information that will gather and sends to control module; Data are also sent to wireless public network by the data that wireless communication unit reception control unit sends; Power Management Unit is that whole device is powered.
GPS unit comprises gps antenna subelement, surface acoustic wave GPS filtering subelement, GPS module subelement and reserve battery subelement, and gps antenna subelement is used for receiving satellite signal and signal is sent to surface acoustic wave GPS filtering subelement carrying out filtering; GPS module subelement converts data available to filtered satellite-signal; Reserve battery subelement is GPS module subelement stand-by power supply, to realize GPS module subelement warm start function.
Control module comprises processor subelement and debugging interface subelement, processor subelement is used for sending binary order to GPS unit and is configured, receive and resolve GPS unit export locator data and the information that obtains carry out software filtering, receive the information of expanding element transmission, to wireless communication unit sending controling instruction, and wireless communication unit is sent to carry out teletransmission locating information and Information Monitoring; Debugging interface subelement is used for processor subelement loading source program and debugs.
Expanding element comprises expansion interface J1 and expansion interface J2, and expansion interface is connected with described processor subelement.
Wireless communication unit comprises wireless communication module subelement and usim card subelement, and wireless communication module subelement is used for the information of reception control unit transmission and sends it to remote terminal; Usim card subelement is used for providing wireless public network service to wireless communication module, 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 is connected with SIM_DETECT, SIM_RESET, SIM_CLK, SIM_DATA, SIM_VSIM pin of wireless communication module subelement respectively.
Power Management Unit comprises the first power supply subelement, second source subelement and the 3rd power supply subelement, and vehicle-mounted 24 ~ 36v Power convert is become 5v power supply by the first power supply subelement; 5v Power convert is become 4v power supply by second source subelement, for reserve battery charging is in case suddenly power down, and powers for wireless communication unit; 4v Power convert becomes 3.3v power supply to be that control module and GPS unit are powered by the 3rd power supply subelement.
Locator data is transferred to processor subelement and resolves by GPS module subelement, GPS module subelement is made up of GPS module " U2 " and peripheral circuit, processor subelement is made up of AVR family chip " U1 " and peripheral circuit thereof, communicate between the two and to be realized by the connection of USART mouth, namely USART mouth TX, RX pin of chip U1 is connected, to complete the transmitting-receiving of information with USART mouth RX, TX pin of module U2 respectively by resistance.
Expanding element by information transmission to processor subelement, information carries out teletransmission after treatment, expanding element is made up of expansion interface " J1 " and " J2 ", information acquisition can be completed by connecting sensor, the pin of J1 is connected with the simulating signal input pin of U1 respectively, the pin of J2 is connected with the I/O pin of U1 respectively, to complete the transmission of analog information and numerical information respectively.
Locating information after parsing and the information collected send to described wireless communication module subelement to carry out teletransmission by processor subelement, wireless communication module subelement is made up of 2G or 3G wireless communication module " U3 " and peripheral circuit thereof, communication between processor subelement and wireless communication module subelement is completed by the connection of USART interface, to realize described processor subelement to send order and function from transmission information to described wireless communication module subelement, then information is sent to wireless public network by wireless communication module subelement again.
The operation method of Moving objects location trace information harvester comprises the steps:
(1) after device powers on, processor subelement carries out initialization, arranges stack pointer, opens global interrupt, initialization USART0 interface and USART1 interface, now can not the receive interruption of enable USART0 interface;
(2) processor subelement sends AT instruction (Attention command to wireless communication module subelement, the i.e. order that sends to terminal adapter of terminal device, every bar AT instruction all can realize the function of fixing), complete that opening network reports service, opens the service of higher-layer protocols reporting events, activates usim card, activated protocol stack, search network add wireless public network five steps, make it start shooting and access wireless public network;
(3) processor subelement is configured to GPS module subelement transmission binary order, realizes larger shift point filtering;
(4) GPS module subelement receives the geographical location information by gps antenna subelement and surface acoustic wave GPS filtering subelement, converts locator data to by after information analysis, and the larger shift point of filtering, then sent to processor subelement by serial ports;
(5) receive interruption of USART0 interface opened by processor subelement, receives the locator data that GPS module sends;
(6) after processor subelement receives effective location data, the receive interruption of shielding USART0 interface, the kind of data discrimination, and resolved respectively, the process such as filtering, the information such as the geographical location information of moving target and module status can be obtained;
(7) information received by expansion interface J1 is processed by processor subelement, to obtain information needed and correct information format;
(8) processor subelement sends AT instruction (Attention command to wireless communication module U3, the i.e. order that sends to terminal adapter of terminal device, every bar AT instruction all can realize the function of fixing), open its short message service, comformed information sends the destination number of form, information mode parameters, terminal character sets form and correspondence, the data that then will send are transferred to wireless communication module, by it, information are sent to wireless public network;
(9) after time delay certain hour, from step (5) again perform, carry out information acquisition next time.
Beneficial effect:
1) the present invention is on the basis systematically studying and devise the collection of Moving objects location trace information, design and have developed a kind of Moving objects location trace information harvester and operation method thereof, effectively to solve the non real-time nature that moving target is artificially observed or manual operation instrument monitoring causes, not sicentific and waste of human resource, can locate in real time moving target simultaneously, can accurately find when moving target situation occurred and it is rescued, expand further to prevent the state of affairs.
2) the present invention is owing to adopting GPS technology, accurately can locate, have the features such as positioning precision is high, observation time is short, global all weather operations, high-level efficiency, applied range to moving target.
3) 2G or the 3G wireless communication technology of the present invention's employing, have real-time online characteristic, system, without time delay, just can synchronously receive and dispatch the data received without the need to taking turn, can realize the real-time of moving target monitoring.
4) 2G or the 3G wireless communication technology of the present invention's employing, there is the feature of wide coverage, the transmitting-receiving of all monitoring informations can be realized in its coverage, simultaneously dilatation is unrestricted, access place is unrestricted, mountain area, small towns and trans-regional access demand can be met.
5) Power Management Unit of the present invention's employing is with vehicle-mounted 24-36v for input power, is applicable to automobile scenarios, and Power Management Unit inside is containing standby lithium pond and charging circuit thereof simultaneously, effectively can prevent the device shut-down problem that the unexpected power down of power supply brings.
6) the present invention is in the design owing to have employed practicable design, fully taking into account its device in actual applications while applicability, reduces its cost as far as possible.Notice its fastness simultaneously, weld before deployment, and note the sealing of pad, its device normally can be worked in the environment such as humidity, dust, and the phenomenons such as burn into line short or leak current fault can not occur.
7) the present invention is large due to the operating temperature range of each components and parts adopted, and makes its device-25C ° to+70C ° normally work, the present invention can be made like this to be suitable for overwhelming majority of countries and the area in the world.
8) the present invention is owing to having 6 above), 7) described in feature, the high humidity of common intensity, high/low temperature, dust storm, shock and corrosion etc. can be resisted, significantly enhance its device adaptive faculty in the presence of a harsh environment.
9) the present invention adopts jtag interface that terminal can be made to debug its device and programme and programming program; Can not only control actuating equipment, can also detect the state of actuating equipment and give notice, its function is effective and reliable.
Accompanying drawing explanation
Fig. 1 is the general principles block diagram of Moving objects location trace information harvester.
Fig. 2 is the software flow pattern of Moving objects location trace information harvester.
Fig. 3 is control module schematic diagram in Moving objects location trace information harvester.
Fig. 4 is GPS unit schematic diagram in Moving objects location trace information harvester.
Fig. 5 is expanding element schematic diagram in Moving objects location trace information harvester.
Fig. 6 is wireless communication unit schematic diagram in Moving objects location trace information harvester.
Fig. 7 is Power Management Unit schematic diagram in Moving objects location trace information harvester.
Embodiment
Below technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described embodiment.
A kind of Moving objects location trace information harvester and operation method thereof, its device the general frame as shown in Figure 1, comprises control module, GPS unit, expanding element, wireless communication unit and Power Management Unit.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 of expanding element transmission, sends to wireless communication unit after carrying out dissection process; Expanding element receives the information that will gather and sends to control module; Data are also sent to wireless public network by the data that wireless communication unit reception control unit sends; Power Management Unit is that whole device is powered.
Above-mentioned control module is as Fig. 3, and 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 the high-performance of AT company, the high-grade microprocessor ATmega64L of low-power consumption AVR 8.It has advanced risc architecture, the highest 8MHz frequency of operation, and most of instruction completes in one-period, and arithmetic speed is high; 64kFlash, 4kSRAM and 4kEEPROM in sheet; Support 6 kinds of sleep patterns such as battery saving mode, power-down mode; There is multiple bus and sufficient IO interface; There is A/D, D/A interface; There is the wide operating voltage range of 2.7V-5.5V; There is the jtag interface with IEEE 1149.1 operating such; There is the operating temperature range of-55C ° to+125C °.
The data line of debugging interface subelement 6 is connected with the jtag interface of microprocessor chip U1 after resistance " R2 ~ R5 " pull-up, and its " 1,3,5,9 " pin is connected with " 57,56,55,54 " pin of microprocessor chip U1 respectively.
According to the function realized at this device, can microprocessor chip U1 be divided into lower part:
1) serial line interface 0, the USART0 mouth of microprocessor chip U1 is connected with the USART mouth of GPS module subelement 3, and the locator data sent for microprocessor chip U1 reception GPS module subelement 3 and microprocessor chip U1 send configuration information to GPS module subelement 3;
2) serial line interface 1, the USART1 mouth of microprocessor chip U1 is connected with the USART mouth of wireless communication module subelement 7, for microprocessor chip U1 to the monitor message after wireless communication module subelement 7 transmission processing;
3) processor cores, it can access storer, performs data operation, data check, data conversion, data transmission and process and interrupts.
Wherein, " 2 " pin (the RX end of USART0 interface) of microprocessor chip U1 is connected with " 20 " pin (TX of USART interface holds) of GPS module subelement 3 by resistance R14, and " 3 " pin (the TX end of USART0 interface) is connected with " 21 " pin (RX of USART interface holds) of GPS module subelement 3 by resistance R15; " 27 " pin (the RX end of USART1 interface) of microprocessor chip U1 is connected with " 42 " pin (TX of USART interface holds) of wireless communication module subelement 7, and " 28 " pin (the TX end of USART0 interface) is connected with " 43 " pin (RX of USART interface holds) of wireless communication module subelement 7.
Above-mentioned GPS unit is as Fig. 4, and it is made up of gps antenna subelement 1, surface acoustic wave GPS filtering subelement 2, GPS module subelement 3 and reserve battery subelement 4.
Gps antenna subelement is made up of gps antenna and peripheral circuit thereof, and wherein gps antenna selects GPS vehicle active antenna, and selection frequency is 1575.42MHZ, and supply voltage is 3.0-5.0V.Wherein 5 pins of gps antenna are connected with " 4 " pin (Output unbalanced) of surface acoustic wave GPS filtering subelement 2, and are connected with " 9 " pin (VCC_RF) of GPS module subelement with electric capacity " L2 " by resistance " R31 ".
Surface acoustic wave GPS filtering subelement is made up of surface acoustic wave filter and peripheral circuit thereof, wherein the B9444 chip of EPCOS company selected by surface acoustic wave filter, it is the low damage radio-frequency filter being applied to mobile GPS system, filter impedance is 50 ohm, low-down insertion attenuation, different channel Signal transmissions selectivity is high, and short arc fluctuates, available passband 2.0MHZ, has the operating temperature range of-30C ° to+85C °.Its " 1 " pin (Input unbalanced) is connected with " 11 " pin (RF_IN) of GPS module subelement.
GPS module subelement 3 is made up of GPS module U2 and peripheral circuit thereof, and wherein GPS module U2 selects the NEO-5Q module of u-blox company of Switzerland.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 battery powered mobile device of power consumption constraint.In the best condition, NEO-5Q primary positioning time is less than 1s, and horizontal positioning accuracy is less than 2m, 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-40C ° to+85C °.
Above-mentioned expanding element is as Fig. 5, and it is made up of expansion interface J1 and expansion interface J2." 2 ", " 4 ", " 6 " of J1 interface, " 8 " pin ground connection, its " 1 ", " 3 ", " 5 ", " 7 " pin connect " 47 ~ 44 " pin (collection of simulant signal pin) of microprocessor chip U1, and J1 interface can connect the simulating signal that 4 tunnels collect simultaneously; " 2 ", " 4 ", " 6 " of J2 interface, " 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 J2 interface can connect the digital signal that 8 tunnels collect simultaneously.
Above-mentioned wireless communication unit is as Fig. 6, and it is made up of wireless communication module subelement 7 and usim card subelement 4.
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 of connection core science and technology, LC6311 is TD-SCDMA (HSDPA) & GGE dual-mode wireless module, it supports that between TD-SCDMA and gsm system, inter-network automatic seamless switches, under TD-SCDMA standard, support up-downgoing asymmetric data transmission ability, up-downgoing message transmission rate can reach 384kbps respectively; It supports USART and USB two kinds of communication interfaces, uses more convenient and flexible, can meet the demand of different main control equipment; It adopts 2.9mm to equip the ultrathin design of height, makes it can conveniently be applied in smart mobile phone and Various types of data card, and inner integrated H.324 protocol stack, makes the functional realiey of visual telephone more simple; Its inner integrated ICP/IP protocol, conveniently can connect INTERNET.
As shown in Figure 6, SIM_DETECT, SIM_RESET, SIM_CLK, SIM_DATA, SIM_VSIM pin (" 52 ", " 51 ", " 50 ", " 49 ", " 48 " pin) of wireless communication module U3 is connected with SIM_DETECT, SIM_RESET, SIM_CLK, SIM_DATA, SIM_VSIM pin (" 8 ", " 2 ", " 3 ", " 6 ", " 1,6,7 " pin) of usim card groove respectively by resistance.
Above-mentioned Power Management Unit is as Fig. 7, and 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 convert is become 5v power supply, and the voltage transitions key element wherein related to is WRS24S05-2W, and the first power supply subelement 9 is powered for second source subelement 10.
The effect of second source subelement 10 is that 5v Power convert is become 4v power supply, for reserve battery charging is in case suddenly power down, and powers for wireless communication unit; The critical battery charge member wherein related to is LTC4052, LTC4052 is a lithium ion battery pulse charger, and its input voltage is 4.5-10v, and operating temperature range is-40C ° to+85C °.
The effect of the 3rd power supply subelement 10 is become by 4v Power convert 3.3v power supply to be that control module and GPS unit are powered; The voltage transitions key element wherein related to is TPS73633, TPS73633 is that it has reverse-current protection without capacitor transistor 400mA low dropout regulator, and its input voltage is 1.7-5.5v, and operating temperature range is-40C ° to+125C °.
The chip selected according to the present embodiment and connected mode, as shown in Figure 2, it comprises the workflow of the Moving objects location trace information harvester of this example:
Step 1) processor subelement 5 carries out initialization, arranges stack pointer, opens global interrupt, initialization USART0 interface and USART1 interface, and now can not the receive interruption of enable USART0 interface.
Step 2) processor subelement 5 sends AT instruction (Attentioncommand to wireless communication module subelement 7, the i.e. order that sends to terminal adapter of terminal device, every bar AT instruction all can realize the function of fixing), complete that opening network reports service, opens the service of higher-layer protocols reporting events, activates usim card, activated protocol stack, search network add wireless public network five steps, make it start shooting and access wireless public network.
Step 3) processor subelement 5 sends binary order to GPS module subelement 3 and is configured, and realizes larger shift point filtering.
Step 4) GPS module subelement 3 starts the geographical location information of periodic receipt by gps antenna subelement 1 and surface acoustic wave GPS filtering subelement 2, locator data is converted to by after information analysis, and the larger shift point of filtering, then sent to processor subelement 5 by serial ports;
Step 5) processor subelement 5 opens the receive interruption of USART0 interface, receives the locator data that GPS module sends.
Step 6) after processor subelement 5 receives effective location data, the receive interruption of shielding USART0 interface, the kind of data discrimination, and resolved respectively, the process such as filtering, the information such as the geographical location information of moving target and module status can be obtained.
Step 7) information received by expansion interface processed by processor subelement 5, with obtain information needed and, correct information format.
Step 8) processor subelement 5 sends AT instruction (Attention command to wireless communication module U3, the i.e. order that sends to terminal adapter of terminal device, every bar AT instruction all can realize the function of fixing), open its short message service, comformed information sends the destination number of form, information mode parameters, terminal character sets form and correspondence, the data that then will send are transferred to wireless communication module, by it, information are sent to wireless public network.
Step 9) after time delay certain hour, from step 5 again perform, carry out information acquisition next time.
As mentioned above, although represented with reference to specific preferred embodiment and described the present invention, it must not explain the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite not departing from claims definition, various change can be made in the form and details to it.
Claims (2)
1. a Moving objects location trace information harvester, is characterized in that comprising control module, GPS unit, expanding element, wireless communication unit and Power Management Unit; Described GPS unit comprises gps antenna subelement, surface acoustic wave GPS filtering subelement, GPS module subelement and reserve battery subelement; Described control module comprises processor subelement and debugging interface subelement; Described wireless communication unit comprises wireless communication module subelement and usim card subelement; Described expanding element comprises expansion interface circuit, and expansion interface circuit is connected with described processor subelement; Described Power Management Unit is that described GPS unit, control module and wireless communication unit are powered;
Described processor subelement is made up of microprocessor chip U1 and peripheral circuit thereof, and microprocessor chip U1 is wherein the high-grade microprocessor ATmega64L of AVR 8 of AT company; The RX end of the USART0 interface of microprocessor chip U1 hold with the TX of the USART interface of GPS module subelement by resistance and is connected, and the TX of the USART0 interface of microprocessor chip U1 is held to be held with the RX of the USART interface of GPS module subelement by resistance and is connected; The RX end of the USART1 interface of microprocessor chip U1 is held with the TX of the USART interface of wireless communication module subelement and is connected, and the TX end of the USART1 interface of microprocessor chip U1 is held with the RX of the USART interface of wireless communication module subelement and is connected;
Four data lines of debugging interface subelement are connected with the jtag interface of microprocessor chip U1 respectively through after a resistance pull-up;
The input end of the output terminal connecting surface sound wave GPS filtering subelement of described gps antenna subelement, the output terminal of surface acoustic wave GPS filtering subelement connects the input end of GPS module subelement, the data input pin of the data output end connection handling device subelement of GPS module subelement, the command input end of GPS module subelement connects the order output terminal of described processor subelement; The power output end of described reserve battery subelement connects the power input of described GPS module subelement, is specially:
Gps antenna subelement is made up of gps antenna and peripheral circuit thereof, wherein gps antenna selects GPS vehicle active antenna, selection frequency is 1575.42MHZ, supply voltage is 3.0-5.0V, wherein the output terminal of gps antenna is connected with the Input unbalanced pin of surface acoustic wave GPS filtering subelement, and is connected with the VCC_RF pin of GPS module subelement with inductance by resistance;
Surface acoustic wave GPS filtering subelement is made up of surface acoustic wave filter and peripheral circuit thereof, and wherein the B9444 chip of EPCOS company selected by surface acoustic wave filter, and its Output unbalanced pin is connected with the RF_IN pin of GPS module subelement;
GPS module subelement is made up of GPS module U2 and peripheral circuit thereof, and wherein GPS module U2 selects the NEO-5Q module of u-blox company of Switzerland;
The data input pin of described wireless communication module subelement connects the data output end of described processor subelement, and the data output end of described wireless communication module subelement connects the data input pin of usim card subelement, is specially:
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 of connection core science and technology, and SIM_DETECT, SIM_RESET, SIM_CLK, SIM_DATA, SIM_VSIM pin of wireless communication module U3 is connected respectively with SIM_DETECT, SIM_RESET, SIM_CLK, SIM_DATA, SIM_VSIM 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 collected and sends to control module; Control module receives from the locator data of GPS unit and the data of expanding element, after carrying out dissection process, passes to wireless communication unit; Data are also sent to wireless public network by the data that wireless communication unit reception control unit sends; Power Management Unit is that whole device is powered;
Described expanding element circuit comprises two expansion interface circuit J1 and J2, they are for connecting the output terminal of respective sensor respectively, expansion interface circuit J1 is connected with the input end of analog signal of processor subelement, expansion interface circuit J2 and processor subelement digital signal input end be connected;
The circuit that described wireless communication module subelement is is core with 2G or 3G wireless communication module circuit;
Described Power Management Unit is made up of the first power supply subelement, second source subelement and the 3rd power supply subelement;
Vehicle-mounted 24 ~ 36v Power convert is become 5v power supply by the first power supply subelement;
5v Power convert is become 4v power supply by second source subelement, is reserve battery charging, and powers for wireless communication unit;
4v Power convert becomes 3.3v power supply to be that described control module and GPS unit are powered by the 3rd power supply subelement.
2. an operation method for Moving objects location trace information harvester according to claim 1, is characterized in that comprising the steps:
(1) after powering on, processor subelement carries out initialization, stack pointer is set, open global interrupt, the communication interface that initialization is connected with GPS module subelement and the communication interface be connected with wireless communication module subelement, now can not the receive interruption of the enable communication interface be connected with GPS module subelement;
(2) processor subelement sends AT instruction to wireless communication module subelement, complete that opening network reports service, opens the service of higher-layer protocols reporting events, activates usim card, activated protocol stack, search network add wireless public network, wireless communication unit is started shooting and accesses wireless public network; Described AT instruction is Attention command order, i.e. the order that sends to terminal adapter of terminal device, and every bar AT instruction all can realize the function of fixing;
(3) processor subelement is configured to GPS module subelement transmission binary order, the surface acoustic wave GPS filtering subelement in enable GPS module;
(4) GPS module subelement starts the geographical location information of periodic receipt by gps antenna subelement and surface acoustic wave GPS filtering subelement, locator data is converted to by after information analysis, and the larger shift point of filtering, then by sending locator data to processor subelement;
(5) receive interruption of the communication interface be connected with GPS module subelement opened by processor subelement, gathers the locator data from GPS module;
(6) after processor subelement receives locator data, the receive interruption of the communication interface of shielding and GPS module subelement, the kind of data discrimination, and resolved respectively, filtering process, geographical location information and the module status information of moving target can be obtained;
(7) information data collected by expansion interface is processed by processor subelement, to obtain information needed and correct information format;
(8) processor subelement sends AT instruction to wireless communication module, the short message service of open wireless communication module, comformed information sends the destination number of form, information mode parameters, terminal character sets form and correspondence, the data that then will send are transferred to wireless communication module, by it, information are sent to wireless public network;
(9) after time delay, from step (5) again perform, carry out information acquisition next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210081650.4A CN102662182B (en) | 2012-03-26 | 2012-03-26 | Mobile object positioning tracking information acquisition apparatus and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210081650.4A CN102662182B (en) | 2012-03-26 | 2012-03-26 | Mobile object positioning tracking information acquisition apparatus and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN103728943A (en) * | 2013-12-25 | 2014-04-16 | 力合科技（湖南）股份有限公司 | Data integration method and device for data monitoring |
| CN104965522A (en) * | 2015-07-17 | 2015-10-07 | 深圳市浩瀚卓越科技有限公司 | GPS-based automatic multi-rotor unmanned aerial vehicle tracking system |
| 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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