CN102508276A - Vehicle-mounted double-positioning device - Google Patents
Vehicle-mounted double-positioning device Download PDFInfo
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- CN102508276A CN102508276A CN2011103703857A CN201110370385A CN102508276A CN 102508276 A CN102508276 A CN 102508276A CN 2011103703857 A CN2011103703857 A CN 2011103703857A CN 201110370385 A CN201110370385 A CN 201110370385A CN 102508276 A CN102508276 A CN 102508276A
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Abstract
The invention belongs to the field of a vehicle positioning and monitoring system and particularly relates to a vehicle-mounted double-positioning device. The vehicle-mounted double-positioning device comprises a control chip with an application program, a Global System for Mobile Communications (GSM) module, a global positioning system module, a control chip serial port expansion module and a static random access memory module and is characterized in that the GSM module is connected to the control chip through the control chip serial port expansion module; the global positioning system module is connected to the control chip through the serial port expansion module; and the static random access memory module is used for storing positioning data. The vehicle-mounted double-positioning device has the beneficial effects that a global positioning system is accurate to position, but is provided with blind spots, and a GSM is not provided with the blind spots, but is inaccurate to position, and thus, the global positioning system and the GSM are integrated to carry out double positioning, the advantages of the global positioning system and the GSM are adopted and the vehicle-mounted double-positioning device not only is accurate to position, but also is not provided with the blind spots; the practice proves that the device can be used for implementing accurate positioning in places which cannot be positioned due to loss of a global positioning system satellite signal, such as an avenue, a garage and the like, and is completely feasible on the aspects of both technology and economy.
Description
Technical field
The invention belongs to vehicle location monitor system field, relate in particular to a kind of vehicle-mounted pair of locating terminal device.
Background technology
Along with the expansion of China's urban construction scale, vehicle is increasing, widely uses in aspect GPSs such as the operation control of communications and transportation, rational management, safety managements.The application of global positioning system technology provides concrete real-time station-keeping ability for the navigator fix of the vehicles such as vehicle, steamer.Through the vehicle-bone global positioning system receiver, make the driver can know the particular location of oneself at any time.Through the short message form gps location is sent to the control and command center, thereby the particular location of each vehicle just can be in time grasped locating information and electronic map match at the control and command center.But during the GPS satellite location, the antenna of GPS requires 15 ° of headroom visual angles of funnel type will be arranged and receive the influence of cloud layer big sky.For industry GPS track navigations such as communications and transportation; Need in real time vehicle to be followed the tracks of; So follow the tracks of and the location owing to blocking of buildings and trees etc. can't be navigated GPS normally when the GPS satellite signal, blind spot promptly occurs.
Summary of the invention
Fundamental purpose of the present invention is to overcome the deficiency of above-mentioned technology, and a kind of vehicle-mounted pair of locating terminal device is provided.Accurately location is implemented in the place that this device can be in city high rise building district, boulevard, garage etc. can't be located because of the GPS satellite dropout, technically, economically with all be fully feasible in the environmental protection.
The present invention is for realizing above-mentioned purpose; Adopt following technical scheme: a kind of vehicle-mounted pair of locating terminal device; Comprise the control chip that application program is housed, global system for mobile communications module, GPS module, control chip serial ports expansion module, static store module at random.It is characterized in that: said global system for mobile communications module is connected to control chip through control chip serial ports expansion module; Said GPS module is connected to control chip through control chip serial ports expansion module; The said module of static store at random is used for stored programme and data.
Beneficial effect: GPS accurate positioning but blind spot is arranged; Global system for mobile communications does not have blind spot but locatees inaccurately, and the two integrates two location, gets its advantage; Not only located accurately, but also do not had blind spot; Facts have proved that accurately location is implemented in the place that this device can be in city high rise building district, boulevard, garage etc. can't be located because of the GPS satellite dropout, technically, economically with all be fully feasible in the environmental protection.Have the following advantages:
1. GPS accurate positioning but blind spot is arranged, the global system for mobile communications network coverage does not extensively have blind spot and can positional information be sent to far-end.Global system for mobile communications and GPS are integrated; Design a kind of vehicle-mounted pair of locating terminal device; This device has been integrated the advantage of global system for mobile communications and GPS, has overcome the GPS location shortcoming that blind spot is more, the global system for mobile communications bearing accuracy is lower.
2. GPS module of the present invention has the GPS navigation time service concurrently, and also support the far-end difference operation and have tracking satellite-based augmentation system, and accurate carrier phase measurement performance.Serial communication protocol is all followed in the input and output of GPS module, can export the data message of conformance with standard ASCII character form.Data structure is 8 data bit, 1 start bit, 1 position of rest, no parity position.The user can carry out initialization to the GPS module plate through read statement, and information such as data layout, baud rate and output statement kind are set, and output statement then is various data messages from GPS to the user that export.
3. control chip serial ports expansion module of the present invention adopts the mode of writing control word that connected other modules are controlled; 10 of data frame lengths or 11 are optional; Several 3 of substring mouth; Under the single, high bit rate is supported 20Mbps; Under the multi-channel mode, the high bit rate 38400bps of substring mouth; Wide operating voltage 2.3～6.7V; Operating temperature range-40 ℃～85 ℃.
4. the 128kb of the module of static store at random of the present invention expansion static memory at random is used for store sample information, and the information of GPS directly stores, and the positional information of global system for mobile communications is through the control chip unloading.This locating device has also designed power source conversion and power down protection circuit, is cutting away under the situation of external power source guaranteeing, the data in the static memory are unlikely at random loses.Control chip just can carry out various marks as required on the vector map of liquid crystal display after obtaining navigation data, comprise current location, movement locus, time etc., and these work are all realized by application program control.
5. master routine of the present invention.Design of System Software mainly comprises initialization module, data processing module, man-machine conversation module.Consider GPS than global system for mobile communications accurate positioning,, orientate as auxilliary with global system for mobile communications so when location orientated the master as with GPS.Car-mounted terminal is in when GPS blind spot region (like garage, boulevard etc.) can't be located and utilizes global system for mobile communications to position.
Description of drawings
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is a global system for mobile communications module frame chart of the present invention.
Fig. 3 is a GPS module block diagram of the present invention.
Fig. 4 is a control chip serial ports expansion module frame chart of the present invention.
Fig. 5 is the module frame chart of static store at random of the present invention.
Fig. 6 is a main program block diagram of the present invention.
Embodiment
Specify embodiment of the present invention below in conjunction with accompanying drawing and preferred embodiment.Its structured flowchart is shown in Figure of description 1.A kind of vehicle-mounted pair of locating terminal device comprises the control chip that application program is housed, global system for mobile communications module, GPS module, control chip serial ports expansion module, static store module at random.Said global system for mobile communications module (shown in Figure of description 2) is connected to control chip through control chip serial ports expansion module; Said GPS module (shown in Figure of description 3) is connected to control chip through control chip serial ports expansion module (shown in Figure of description 4); The said module of static store at random (shown in Figure of description 5) is used for stored programme and data; Said application program (shown in Figure of description 6) is stored in control chip.
Along with the expansion of China's urban construction scale, vehicle is increasing, widely uses in aspect GPSs such as the operation control of communications and transportation, rational management, safety managements.The application of global positioning system technology provides concrete real-time station-keeping ability for the navigator fix of the vehicles such as vehicle, steamer.Through the vehicle-bone global positioning system receiver, make the driver can know the particular location of oneself at any time.Through the short message form gps location is sent to the control and command center, thereby the particular location of each vehicle just can be in time grasped locating information and electronic map match at the control and command center.But during the GPS satellite location, the antenna of GPS requires 15 ° of headroom visual angles of funnel type will be arranged and receive the influence of cloud layer big sky.For industry GPS track navigations such as communications and transportation; Need in real time vehicle to be followed the tracks of; So follow the tracks of and the location owing to blocking of buildings and trees etc. can't be navigated GPS normally when the GPS satellite signal, blind spot promptly occurs.
GPS accurate positioning but blind spot is arranged; Global system for mobile communications does not have blind spot but locatees inaccurately, and the two integrates two location, gets its advantage; Not only located accurately, but also do not had blind spot; Facts have proved that accurately location is implemented in the place that this device can be in city high rise building district, boulevard, garage etc. can't be located because of the GPS satellite dropout, technically, economically with all be fully feasible in the environmental protection.
Principle of work:
Global system for mobile communications module of the present invention has two functions of location and information transmission concurrently.Control chip relies on STK card (STK card) from global system for mobile communications Virtual network operator extract location information; Short message form through the global system for mobile communications module is sent to Surveillance center with data again, and the global system for mobile communications module receives the short message instruction of Surveillance center simultaneously.The short message of accepting is after control chip is handled, and the symbol display that can understand with user easier also can convert the voice suggestion user to through language module on LCDs.
GPS module of the present invention has the GPS navigation time service concurrently, and also support the far-end difference operation and have tracking satellite-based augmentation system, and accurate carrier phase measurement performance.GPS module mainly form frequently by frequency converter, mark by device, signalling channel, microprocessor and storage unit etc.After accomplishing initial self check; GPS module is with the radiofrequency signal of automatic reception from the GPS of antenna; Frequency conversion in low noise frequency converter; Become low frequency signal by radiofrequency signal, measure the travel-time of global positioning system signal from the satellite to the receiving antenna through signalling channel again, separate and translate the navigation message that GPS satellite sends out; Calculate at last the information such as three-dimensional coordinate, speed, time of measured point, at last via I/O mouth output serial data by the processor of GPS module.Serial communication protocol is all followed in the input and output of GPS module, can export the data message of standard compliant ASCII character form.Data structure is 8 data bit, 1 start bit, 1 position of rest, no parity position.The user can carry out initialization to the GPS module plate through read statement, and information such as data layout, baud rate and output statement kind are set, and output statement then is various data messages from GPS to the user that export.
Control chip serial ports expansion module of the present invention adopts the mode of writing control word that chip is controlled; 10 of data frame lengths or 11 are optional; Several 3 of substring mouth; Under the single, high bit rate is supported 20Mbps; Under the multi-channel mode, the high bit rate 38400bps of substring mouth; Wide operating voltage 2.3～6.7V; Operating temperature range-40 ℃～85 ℃.Because control chip is communicated by letter with global system for mobile communications module, GPS module and is all needed to carry out communication with serial ports, so need the control chip serial ports is expanded.The design adopts special-purpose serial extended unit to solve; This special use serial extended unit can be extended to the standard serial port of a full duplex 3 standard serial ports; And can control the serial ports expansion pattern: single channel mode of operation and hyperchannel mode of operation through external pin; Both can specify a sub-serial ports and female serial ports with identical baud rate work, and also can let all substring mouths frequency division on female serial ports baud rate basis work simultaneously.The work baud rate of female serial ports and substring mouth can be by software adjustment, and need not revise external circuit and crystal oscillator frequency.
The 128kb of the module of static store at random of the present invention expansion static memory at random is used for store sample information, and the information of GPS directly stores, and the positional information of global system for mobile communications is through the control chip unloading.This locating device has also designed power source conversion and power down protection circuit, is cutting away under the situation of external power source guaranteeing, the data in the static memory are unlikely at random loses.The processor of GPS module just can carry out various marks as required on the vector map of liquid crystal display after obtaining navigation data, comprise current location, movement locus, time etc., and these work are all realized by application program control.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (5)
1. vehicle-mounted pair of locating terminal device comprises the control chip that application program is housed, global system for mobile communications module, GPS module, control chip serial ports expansion module, static store module at random.It is characterized in that: said global system for mobile communications module is connected to control chip through control chip serial ports expansion module; Said GPS module is connected to control chip through control chip serial ports expansion module; The said module of static store at random is used for stored programme and data.
2. a kind of vehicle-mounted pair of locating terminal device according to claim 1, it is characterized in that: said global system for mobile communications module is connected to control chip through control chip serial ports expansion module.Realize assist location and information transmission receiving function.
3. a kind of vehicle-mounted pair of locating terminal device according to claim 1, it is characterized in that: said GPS module is connected to control chip through control chip serial ports expansion module.
4. a kind of vehicle-mounted pair of locating terminal device according to claim 1; It is characterized in that: said control chip serial ports expansion module is 3 serial ports with the control chip serial ports expansion; Be connected with global system for mobile communications module, GPS module respectively, remain a serial ports and be used for vehicle-mounted pair of locating terminal device and further develop.
5. a kind of vehicle-mounted pair of locating terminal device according to claim 1 is characterized in that: said machine static store module is used for stored programme and data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103703857A CN102508276A (en) | 2011-11-21 | 2011-11-21 | Vehicle-mounted double-positioning device |
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| CN2011103703857A CN102508276A (en) | 2011-11-21 | 2011-11-21 | Vehicle-mounted double-positioning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464349A (en) * | 2014-10-24 | 2015-03-25 | 南京邮电大学 | Vehicle localization management system based on car networking and implementation method of vehicle localization management system based on car networking |
| CN110661563A (en) * | 2018-11-17 | 2020-01-07 | 珠海市磐石电子科技有限公司 | Driving control system and monitoring method of driving device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009619A (en) * | 2006-12-28 | 2007-08-01 | 中国科学院计算技术研究所 | A wireless sensor network gateway device |
| CN101208006A (en) * | 2006-12-20 | 2008-06-25 | 厦门雅迅网络股份有限公司 | Vehicle mounted terminal integrated with guidance and vocation application |
-
2011
- 2011-11-21 CN CN2011103703857A patent/CN102508276A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208006A (en) * | 2006-12-20 | 2008-06-25 | 厦门雅迅网络股份有限公司 | Vehicle mounted terminal integrated with guidance and vocation application |
| CN101009619A (en) * | 2006-12-28 | 2007-08-01 | 中国科学院计算技术研究所 | A wireless sensor network gateway device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464349A (en) * | 2014-10-24 | 2015-03-25 | 南京邮电大学 | Vehicle localization management system based on car networking and implementation method of vehicle localization management system based on car networking |
| CN110661563A (en) * | 2018-11-17 | 2020-01-07 | 珠海市磐石电子科技有限公司 | Driving control system and monitoring method of driving device |
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Application publication date: 20120620 |