CN1474194A - Integerated satellite postioning vehicle carried termianl - Google Patents
Integerated satellite postioning vehicle carried termianl Download PDFInfo
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- CN1474194A CN1474194A CNA031276431A CN03127643A CN1474194A CN 1474194 A CN1474194 A CN 1474194A CN A031276431 A CNA031276431 A CN A031276431A CN 03127643 A CN03127643 A CN 03127643A CN 1474194 A CN1474194 A CN 1474194A
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Abstract
The present invention relates to integrated satellite positioning vehicle carried terminal. The satellite positioning device has its antenna RF connected via signal sending serial port and signal receiving serial port of GPS module to the interface circuit, and CPU serial port to the interface circuit, so that the received positioning and state information transmitted to the CPU. The antenna RF is connected via signal sending serial port and signal receiving serial port of GPS module to RS232 interface circuit, and the P3.2 port of the CPU serial port is connected to corresponding ports of RS232 interface circuit, so as to exchange information with the movable short message center and complete the real-time monitoring of the controlled vehicle. The data port of the CPU is connected via latch to PROM and RAM to store program and data. The received satellite positioning data and vehicle state information is data converted into protocol format and fed back via GSM network to the center as short message.
Description
Technical field:
The invention provides a kind of integrated satnav car-mounted terminal, relate to the operation conditions system of real-time monitoring vehicle, belong to the device for monitoring vehicle technical field.
Background technology:
Utilize global position system that vehicle running state is monitored, carry out scientific management and become existing technology, but the volume of existing end product is bigger, brings certain difficulty to installation.GPS module and gsm module all have the circuit board of oneself, adopt the mode of line to be connected to motherboard, and different AUI circuit differences do not possess versatility, and therefore, there is the performance problem of unstable in equipment.
Summary of the invention:
The invention provides a kind of integrated satnav car-mounted terminal,, reduced terminal volume by selecting the device of miniaturization more for use.SIM card adopts special mode to connect with motherboard, has reduced taking of space, has improved the reliability that connects.Adopt the bus mode coupling, made things convenient for the connection of various annexes.
The present invention adopts the GPS module that location technology and GSM communication network are provided, and forms protocol format through data-switching on central processing unit, sends Surveillance center by gsm module to by the GSM network, realizes vehicle running state is monitored in real time.With receiving the running status of gps satellite locator data and some vehicles, return to the center by the mode of GSM network with short message, the center is monitored in real time and is managed vehicle.The control command of receiving center is carried out measures such as monitoring, oil-break power break, if external bar shaped display screen can also be realized the scheduling of center to vehicle to vehicle.
Concrete technical solution is as follows: satellite positioning device comprises that GPS module, antenna RF and RS232 interface circuit constitute, antenna RF is connected with GPS module radiofrequency signal end, the signal sending serial port and signal TX of GPS module, reception serial ports RX are connected with the corresponding port of RS232 interface circuit, serial ports TXO, the RXO of central processor CPU is connected with the corresponding port of RS232 interface circuit, and the location, the status information that receive are passed to central processing unit; The GSM communication device comprises that GSM communication module, antenna RF and RS232 interface circuit constitute, antenna RF is connected with gsm module radiofrequency signal end, the signal sending serial port and signal of gsm module, reception serial ports are connected with the corresponding port of RS232 interface circuit, the serial ports P3.2 port of central processor CPU is connected with RS232 interface circuit corresponding port, with SMS (Short Messaging Service) center exchange message, finish real-time monitoring to controlled vehicle; The most-significant byte that the FPDP of central processor CPU is made the one 8 of address and address port by latch meets program memory ROM and data-carrier store RAM respectively, finishes procedure stores and data storage; Reset circuit and EEROM chip are connected with the P1 mouth of CPU, realize cpu reset and parameter memory function.The crystal oscillator input of central processor CPU, output terminal XTAL1, XTAL2 are connected with crystal oscillating circuit by electric capacity, and power circuit provides power supply by VCC for CPU, GPS module, RS232 interface circuit.
Good effect of the present invention is: GPS, gsm module all are incorporated on the pcb board, have removed RS232 interface conversion circuit and connection line, reduced to take up room and the unreliability brought of line, remove the fault that line brings between plate.Mode with bus connects external accessory, can connect various annex easily.Receive gps satellite locator data and vehicle state information and accessory information, become protocol format, return to the center by the form of GSM network with short message through data-switching.
Description of drawings:
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment:
According to Fig. 1, the crystal oscillator input of central processor CPU (W78C32 model), output terminal XTAL1, XTAL2 are connected with crystal oscillating circuit by electric capacity, reset circuit connects the reset terminal of CPU, serial ports TX, the RX of CPU is connected with the corresponding port of RS232 interface circuit, gps antenna RF is connected with GPS module radiofrequency signal, and location, the status information that receives is connected with the corresponding port of RS232 interface circuit by signal sending serial port and signal TX, the reception serial ports RX of GPS module.Power circuit provides power supply by VCC for CPU, GPS module, RS232 interface circuit.The RS232 interface circuit of GSM communication module is connected with the P3.2 port of CPU, with SMS (Short Messaging Service) center exchange message, finishes the real-time monitoring to controlled vehicle; The PO mouth of CPU is made the one 8 A0-A7 in address as FPDP by latch, and the P2 mouth meets program memory ROM and data-carrier store RAM respectively as the most-significant byte of address, finishes procedure stores and data storage; Reset circuit and EEROM chip are connected with the P1 mouth of CPU, realize cpu reset and parameter memory function.
Directly insert the automobile power level; provide stable dc power supply through overvoltage crowbar for terminal; be GSM through voltage conversion circuit again; the GPS module for power supply; the GPS module provides locating information; form protocol format in CPU (central processing unit) through data-switching, send Surveillance center to by the GSM network, realize monitoring in real time by gsm module.CPU (central processing unit) connects various annexes by external bus, receives accessory information.The online programming module connects CPU (central processing unit) and online upgrading device, refresh routine memory content, upgrading terminals version.
Claims (1)
1, integrated satnav car-mounted terminal, comprise satellite positioning device, GSM communication device and central processing unit, the crystal oscillator input of central processor CPU, output terminal XTAL1, XTAL2 is connected with crystal oscillating circuit by electric capacity, reset circuit and EEROM chip are connected with the P1 mouth of CPU, realize that cpu reset and parameter memory function power circuit are CPU by VCC, the GPS module, the RS232 interface circuit provides power supply, it is characterized in that: satellite positioning device is by the GPS module, antenna RF and RS232 interface circuit constitute, antenna RF is connected with GPS module radiofrequency signal end, the signal sending serial port and signal TX of GPS module, receiving serial ports RX is connected with the corresponding port of RS232 interface circuit, the serial ports TX of central processor CPU, RX is connected with the corresponding port of RS232 interface circuit, with the location that receives, status information is passed to central processing unit; The GSM communication device is made of GSM communication module, antenna RF and RS232 interface circuit, antenna RF is connected with gsm module radiofrequency signal end, the signal sending serial port and signal of gsm module, reception serial ports are connected with the corresponding port of RS232 interface circuit, the serial ports P3.2 port of central processor CPU is connected with RS232 interface circuit corresponding port, with SMS (Short Messaging Service) center exchange message, finish real-time monitoring to controlled vehicle; The most-significant byte that the FPDP of central processor CPU is made the one 8 of address and address port by latch meets program memory ROM and data-carrier store RAM respectively, finishes procedure stores and data storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031276431A CN1474194A (en) | 2003-07-23 | 2003-07-23 | Integerated satellite postioning vehicle carried termianl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031276431A CN1474194A (en) | 2003-07-23 | 2003-07-23 | Integerated satellite postioning vehicle carried termianl |
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| Publication Number | Publication Date |
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| CN1474194A true CN1474194A (en) | 2004-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA031276431A Pending CN1474194A (en) | 2003-07-23 | 2003-07-23 | Integerated satellite postioning vehicle carried termianl |
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| CN (1) | CN1474194A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216544B (en) * | 2007-12-26 | 2010-10-06 | 西安华迅微电子有限公司 | GPS receiving machine integrated radio frequency chip |
| WO2011076059A1 (en) * | 2009-12-21 | 2011-06-30 | Kleperis Todd E | Mobile monitoring device and monitoring system of electronic equipment |
| CN101192322B (en) * | 2006-12-01 | 2012-07-25 | 启明信息技术股份有限公司 | Leased autocar initiative safe protection method and vehicle mounted terminal |
| CN105799532A (en) * | 2016-03-27 | 2016-07-27 | 苏州高新区建金建智能科技有限公司 | Unmanned self-service electric car device |
| CN113687400A (en) * | 2021-08-24 | 2021-11-23 | 泰斗微电子科技有限公司 | Satellite signal acquisition method, device, equipment and storage medium based on user identification card |
-
2003
- 2003-07-23 CN CNA031276431A patent/CN1474194A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192322B (en) * | 2006-12-01 | 2012-07-25 | 启明信息技术股份有限公司 | Leased autocar initiative safe protection method and vehicle mounted terminal |
| CN101216544B (en) * | 2007-12-26 | 2010-10-06 | 西安华迅微电子有限公司 | GPS receiving machine integrated radio frequency chip |
| WO2011076059A1 (en) * | 2009-12-21 | 2011-06-30 | Kleperis Todd E | Mobile monitoring device and monitoring system of electronic equipment |
| CN105799532A (en) * | 2016-03-27 | 2016-07-27 | 苏州高新区建金建智能科技有限公司 | Unmanned self-service electric car device |
| CN113687400A (en) * | 2021-08-24 | 2021-11-23 | 泰斗微电子科技有限公司 | Satellite signal acquisition method, device, equipment and storage medium based on user identification card |
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