CN2381073Y - Bidirectional data-transmission master module based on public global mobile communication network platform - Google Patents
Bidirectional data-transmission master module based on public global mobile communication network platform Download PDFInfo
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- CN2381073Y CN2381073Y CN 99226988 CN99226988U CN2381073Y CN 2381073 Y CN2381073 Y CN 2381073Y CN 99226988 CN99226988 CN 99226988 CN 99226988 U CN99226988 U CN 99226988U CN 2381073 Y CN2381073 Y CN 2381073Y
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Abstract
The utility model discloses a bidirectional data-transmission master control module based on a public global digital mobile communication network platform, which comprises a microprocessor, a program memory, a dynamic memory SRAM, an electrically rewritable nonvolatile data memory e < 2 > PROM, a multiplex serial port switch, a level converter, and a program status indicating unit and a GPS global positioning system unit. Because the utility model adopts the measure and adopts mechanical development which is established in the digital mobile communication platform in the master control module, the utility model has the advantages of strong pertinence for software programming, wide covering surface for signal transmission, strong practicability for hardware configuration, easy function extension, and high reliable.
Description
The utility model relates to a kind of two-way data-transmission master module based on public whole world digital mobile communication network platform, relates in particular to the two-way data-transmission master module in a kind of remote object of using based on public whole world digital mobile communication network platform (moving/fixing) supervising device.
Plan according to China Telecom, opened GSM-SMS SMS (Short Message Service) based on Global Link (GSM) agreement in national major area, this two-way short data business transferring, by the SMS radio modem, via the GSM network, can be user's bi-directional length is that 160 bytes are with interior packet.The system that carries out the wireless data transmission for various needs provides good communication link.
In order effectively to utilize the above-mentioned communication resource, more existing enterprises utilize other radio communication platform to develop different application systems, these application systems for example operation principle of remote object (moving/fixing) supervising device are: according to the certain protocol rules, with various signal datas (for example: regional locator data, ATM ATM dateout, the miscellaneous equipment input/output port data) is sent to control centre by voice in the wireless communication networks or data channel, control centre obtains data, analysis monitoring target particulars, according to different situations, transmitting control commands and data, after the remote object supervising device receives instruction, carry out corresponding action.
At present the existing application system for example the remote object supervising device because the master control function that module realizes that is adopted is limited, the main cluster net that covers based on regionality, or directly utilize satellite communication network to reach supervision and control to remote object, therefore produce the scope of surveillance area and the contradiction between the use cost.
The purpose of this utility model is exactly in order to overcome the shortcoming of above-mentioned two-way data-transmission master module, and a kind of the improving and the business of the GSM Internet resources that rise in value that provides, improve the domestic reliability that has the track and localization of mobile or fixed target now, solve the congestion problems of conventional wireless network transmission channel, and tool is multi-functional based on the two-way data-transmission master module of public's whole world digital mobile communication network platform.
The purpose of this utility model is achieved in that a kind of based on the two-way data-transmission master module of public's whole world digital mobile communication network platform, comprises a microprocessor, a program storage, a dynamic memory SRAM, the non-volatile data storage E of an electrically-erasable
2PRAM, multiplex's serial ports switch, a level translator, program state indicating member, global position system GPS unit and a reset unit, above-mentioned each unit improves required working power by power subsystem; Described microprocessor is connected with dynamic memory and program storage two-way transfer of data by address wire, data wire respectively, passes through I
2The C bus is connected with the non-volatile data storage two-way transfer of data of electrically-erasable, is connected with multiplex's serial ports two-way transfer of data by serial port data line; This microprocessor also is connected with condition indication circuit by data wire, and is connected with reset unit and multiplex's serial ports control end with power supply respectively; Described multiplex's serial ports switch is connected by serial port data line is two-way with level translator and global position system GPS unit respectively; Described reset unit is connected with the global position system GPS unit with microprocessor respectively; Level translator is connected with the level translator of AIM is two-way by the external data line.
Because the utility model has adopted above measure, has adopted the mechanical development that is based on the GSM digital mobile communication platform in the master control module, the advantage of its generation is tangible:
1. software programming is with strong points:
Microprocessor in the master control module realized with GSM Global Link transceiver module in the intercommunication mutually of signal processing controller, thereby the inquiry/response communication between GSM Global Link transceiver module and the public mobile station is directly controlled.
2. the signal coverage is wide:
1. signal can cover most of area, the whole nation;
2. interactively transmission means can be carried out speech and transfer of data simultaneously, has remedied existing signal and has transmitted monistic shortcoming;
3. can realize two-way, real time communication.
3. hardware configuration is practical:
The master control module is owing to adopt 16 microprocessor, be equipped with 512K bit flash memory and 128K position static memory, the needs that can adapt to the complex application of operation high level language, the same generic module that adopt 8 microprocessor, be equipped with memory than low capacity, can only move the middle-size and small-size application program of compilation or C language compilation has more practicality.
4. circuit is simple:
The GPS unit of master control module adopts single chip VLSI, and circuit is abbreviatied.
5. reliability improves:
Adopt the design of surface encapsulation components and parts, the paster technique manufacturing has remedied that existing volume with generic module is big, the shortcoming of poor reliability, and whole module volume is little, electromagnetic performance good, reliability is high and make.
6. function expands simple:
Owing to adopt whole modularized design, use unified RS232 serial ports to connect between each functional module, realize that easily function expands.
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is the microprocessor circuit figure of the utility model embodiment;
Fig. 3 is the circuit diagram of the dynamic memory of the utility model embodiment;
Fig. 4 is the circuit diagram of the program storage of the utility model embodiment;
Fig. 5 is the circuit diagram of the program state indicating member of the utility model embodiment;
Fig. 6 is the circuit diagram of multiplex's serial ports switch of the utility model embodiment;
Fig. 7 is the circuit diagram of the non-volatile data storage of electrically-erasable of the utility model embodiment;
Fig. 8 is the circuit diagram of the level translator of the utility model embodiment;
Fig. 9 is the circuit diagram of the GPS unit of the utility model embodiment;
Figure 10 is the circuit diagram of the reset unit of the utility model embodiment;
Figure 11 is the circuit diagram of the power subsystem of the utility model embodiment;
Figure 12 is the utility model application state schematic diagram.
See also Fig. 1.The utility model is a kind of based on the two-way data-transmission master module of public's whole world digital mobile communication network platform, comprise a microprocessor 1, one dynamic memory 2, one program storage 3, program state indicating member 4, multiplex's serial ports switch 5, non-volatile data storage 6, one level translators 7 of one electrically-erasable, embedded global position system GPS unit 8, one power subsystems 9 and a reset unit 10.
Described microprocessor is connected with dynamic memory and program storage two-way transfer of data by address wire, data wire respectively, passes through I
2The C bus is connected with the non-volatile data storage two-way transfer of data of electrically-erasable, is connected with multiplex's serial ports two-way transfer of data by serial port data line; This microprocessor also is connected with condition indication circuit by data wire, and is connected with reset unit and multiplex's serial ports control end with power supply respectively; Described multiplex's serial ports switch is connected by serial port data line is two-way with level translator and GPS unit respectively; Described reset unit is connected with the GPS unit with microprocessor respectively, and power subsystem then provides required power supply for each several part in the whole main control module; Level translator is connected with the level translator of AIM is two-way by the external data line.
See also Fig. 2～Figure 11, these are each circuit decomposing schematic representations of the present utility model.Microprocessor for example adopts the AM186 unit in the present embodiment; Dynamic memory SRAM for example adopts the 128K byte; The non-volatile data storage E2PROM of electrically-erasable for example adopts the 24LC32A model of 32K byte; Program storage adopts the AM29F400A integrated circuit; Two four of models such as multiplex's serial ports RS232 employing 74HC244 are selected an electronic switch to switch, carry out being connected with miscellaneous equipment after the level conversion; The AM186 microprocessor also with the control information of nearest a period of time and the GPS information received through I
2The storage of C bus is at E
2Among the PROM, for calling in case of necessity.The state indicating member adopts for example 74HC574 integrated circuit; Power supply adopts MAX company direct current--direct current change over switch power IC, and for example model is LM294 and MIC2920A, its efficient height, good reliability; Embedded GPS is integrated in the integrated circuit, and adopting model for example be GPSM1, can convert the satellite-signal of antenna acceptance to longitude and latitude and temporal information is exported through serial ports.This main control module also can connect with other computer through serial ports, so that the equipment debugging or the primary control program of packing into.Wherein program storage, dynamic memory SRAM, the non-volatile data storage E of electrically-erasable
2PROM has been compressed on the master control borad, dwindling the module volume, and can external units corresponding.
In the foregoing circuit, wherein:
Its address wire output of microprocessor E4 is connected with the sram cell address wire; Output E11 is connected with program memory cell address and signal input end; Reading signal lines output E13 is connected with sram cell signal input end E14; Reset signal input E16 is connected with the signal output part of reset unit; Chip selection signal output E15 and sram cell chip selection signal input connect; The signal output part E20 that reads instruction is connected with program memory cell address and signal input end E12; Gsm module power supply control output end E35 links to each other with level conversion unit control input E34; I
2C bus bidirectional data line E28 and E
2The prom cell data wire links to each other; Voice control output end E33 and level are pass on and are changed unit controls input E32 and be connected; State written instructions control output end E24 links to each other with state indicating member control input E25; Two-way serial port data line, serial ports control line output E21 is connected with multiplex's serial ports cell data control input end E22; 16 BDB Bi-directional Data Bus least-significant byte output E6 link to each other with state indicating member data input E23 with program memory cell data wire input E8 with sram cell data wire input E9.
The control output end RCS that resets of reset unit is connected with sram cell control input E14; The reference power source output E26 multiplex's serial ports that links to each other with GPS reference power source input E27; GPS communication serial bus E31 links to each other with GPS unit serial bus E30; Serial bus (data and control) end E32 links to each other with level conversion unit serial bus input E33; Application extension interface data and control output end link to each other with the input converting unit W1 of application extension interface.
The power output end E1 of power subsystem provides power supply for each element circuit; E3 is for providing the power supply input to the GPS unit; E2 is the external power input.
Operation principle of the present utility model: (existing rigidly connect with power supply the utility model main control module working condition is that example is described below when logical :) is when supply voltage rises to setting 5V, the reset unit output signal is uprised by low, the AM186 microprocessor is after reset signal finishes, promptly by address wire and read control line and send " reading instruction " signal, read in the instruction of execution then by data wire to program storage; According to command request AM186 the executory data of program are sent among the SRAM through data wire and to be stored; Simultaneously, running state of programs is also sent into condition indication circuit through the least-significant byte data wire, carry out corresponding indication, AM186 is after finishing self initialization, through control line multiplex's serial ports is connected with GSM, the answer signal that sends control command and read in gsm module to GSM by serial bus is to judge whether gsm module has finished initial work then, can enter normal reception, emission state, be connected with gsm module finish after, multiplex's serial ports turns to the GPS unit under AM186 control, judge in the same way as described above whether GPS has been in normal accepting state; The GPS unit connects end back multiplex's serial ports and turns to the application extension interface module, after judging that with the same manner expansion interface is working properly, promptly send instruction to expansion connection module through serial bus, expansion interface is inserted the peripheral hardware of appointment, as printer etc., read in peripheral data by bus again, the peripheral hardware working condition is judged.Above process is that AM186 carries out initialization to system, and after initialization procedure finished, if gsm module is working properly, AM186 promptly sent the AT order that is connected with central station to gsm module.
Gsm module is received from after the AT of the AM186 instruction, at first stored user information in the SIM card being read in control centre (CON80) mails to short message service center then and carries out identity and check, after waiting to receive the affirmation signal of short message service center, dispatching centre station number sign indicating number again, treat that communication link connection back GSM sends " OK " signal through serial ports to AM186, the circumstance of initialization that microprocessor AM186 is about to just now goes to gsm module to send to central station with the short message form through serial ports.Control centre (CON80) all carries out level match through level conversion unit with the data communication of AM186.AM186 the term of execution of program, with some necessary parameter (comprising the longitude and latitude and the time of reading in) from GPS through I
2The C bus deposits E in
2PROM.
Figure 12 is the utility model application state schematic diagram.In actual applications, the utility model main control module is connected with the application extension interface module, to constitute various effects.For further specifying performance characteristics of the present utility model, existing is that example illustrates concrete workflow in conjunction with the moving vehicle supervisory control system again:
Whole moving vehicle supervisory control system is made up of mounted remote supervising device (GSM transceiver module and two-way data-transmission master module, AIM constitute), control centre's two parts.The mounted remote supervising device is installed on every moving target, and the GPS unit in two-way data-transmission master module constantly receives information such as the three-dimensional position of position location satellite emission and speed; After AM186 microprocessor processes, computing, correction, relevant information is sent to control centre by data/short message communication function that GSM transceiver module is had through common mobile communication network with the fastest 1 time/second speed; After data are received by control centre,, the real time position data of tracked vehicle is presented on the electronic chart, and then dispatches, manage through processing, computing, coupling.Simultaneously, mounted remote faces between control device and the control centre and can carry out various communications, warning, file transfer etc.Simultaneously, the default basic communication protocol support of two-way data-transmission master module artificial and report to the police automatically, the remote parameter setting of vehicle-mounted end necessity, file transfer etc.If needed, vehicle-mounted end can by LCDs or mobile printer show by the control centre station sent various information.In addition, cooperate portable notebook can finish from the car navigation feature.Control centre among this embodiment can set up separately, also can utilize existing computer network, and client is an ordinary PC, and electronic chart is installed, and finishes functions such as tracking to vehicle, scheduling, remote maintenance.
The utility model circuit is simple, practical, reliability is high, and function expands easy, can be widely used in the application system based on public whole world digital mobile communication network platform.
Claims (1)
1, a kind of based on the two-way data-transmission master module of public's whole world digital mobile communication network platform, it is characterized in that: comprise a microprocessor, a program storage, a dynamic memory SRAM, the non-volatile data storage E of an electrically-erasable
2PROM, multiplex's serial ports switch, a level translator, program state indicating member, global positioning system unit and a reset unit, above-mentioned each unit improves required working power by power subsystem;
Described microprocessor is connected with dynamic memory and program storage two-way transfer of data by address wire, data wire respectively, passes through I
2The C bus is connected with the non-volatile data storage two-way transfer of data of electrically-erasable, is connected with multiplex's serial ports two-way transfer of data by serial port data line; This microprocessor also is connected with condition indication circuit by data wire, and is connected with reset unit and multiplex's serial ports control end with power supply respectively; Described multiplex's serial ports switch is connected by serial port data line is two-way with level translator and global positioning system unit respectively; Described reset unit is connected with global positioning system unit with microprocessor respectively; Level translator is connected with the level translator of AIM is two-way by the external data line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99226988 CN2381073Y (en) | 1999-06-17 | 1999-06-17 | Bidirectional data-transmission master module based on public global mobile communication network platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99226988 CN2381073Y (en) | 1999-06-17 | 1999-06-17 | Bidirectional data-transmission master module based on public global mobile communication network platform |
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| Publication Number | Publication Date |
|---|---|
| CN2381073Y true CN2381073Y (en) | 2000-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99226988 Expired - Fee Related CN2381073Y (en) | 1999-06-17 | 1999-06-17 | Bidirectional data-transmission master module based on public global mobile communication network platform |
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| CN (1) | CN2381073Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019104989A1 (en) * | 2017-11-30 | 2019-06-06 | 华为技术有限公司 | Terminal and communication method |
-
1999
- 1999-06-17 CN CN 99226988 patent/CN2381073Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019104989A1 (en) * | 2017-11-30 | 2019-06-06 | 华为技术有限公司 | Terminal and communication method |
| US11487910B2 (en) | 2017-11-30 | 2022-11-01 | Huawei Technologies Co., Ltd. | Terminal and communication method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |