CN201331827Y - Vehicle-borne test data short-range wireless transmission and conversion system - Google Patents
Vehicle-borne test data short-range wireless transmission and conversion system Download PDFInfo
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- CN201331827Y CN201331827Y CNU2008201449677U CN200820144967U CN201331827Y CN 201331827 Y CN201331827 Y CN 201331827Y CN U2008201449677 U CNU2008201449677 U CN U2008201449677U CN 200820144967 U CN200820144967 U CN 200820144967U CN 201331827 Y CN201331827 Y CN 201331827Y
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Abstract
The utility model discloses a vehicle-borne test data short-range wireless transmission and conversion system based on Zigbee wireless technology, which comprises a data collector, a sending terminal and a receiving terminal, wherein, the data collector and the sending terminal are arranged in a tested vehicle; and the receiving terminal is arranged in a testing vehicle. The sending terminal comprises a wireless sending module connected with a first computer; the data collector and the first computer are connected; the data collector comprises a CAN bus information acquisition card, a GPS receiver and a data acquisition card; the CAN card is switched in a vehicle CAN bus through a CAN interface module; the receiving terminal comprises a wireless receiving module connected with a second computer, and a digital-analog conversion module; both the second computer and the digital-analog conversion module are connected with vehicle-borne test equipment arranged in the testing vehicle; the second computer and the vehicle test equipment are connected through an RS-232 serial port; the digital-analog conversion module and the vehicle test equipment are connected through a USB interface; and both the wireless sending module and the wireless receiving module adopt the structural mode of converting RS-232 to Zigbee.
Description
Technical field
The utility model relates to a kind of motor road test system, specifically is applied to collection and the short range wireless transmission and the data-switching of CAN bus message, gps data and other sensor information in the tested vehicle ' process.
Background technology
Countries in the world all are faced with because the atmosphere polluting problem that motor vehicle emission caused at present, China has also released a series of Abgasgesetzs vehicular emission has been controlled, but mostly the test of rules and regulations is lab investigation, can not well reflect the real road discharging, for compensating its defect, motor road operation on-board emission test becomes focal point both domestic and external.In order to satisfy vehicle-mounted testing requirement, many on-board emission measurement equipment and method have appearred.But carry out because vehicle-mounted test all needs equipment is placed on the tested vechicle, when in enormous quantities test, the change of testing vehicle or condition need be reinstalled and be debugged various testing apparatuss, time-consuming and poor efficiency.Therefore occurred adopting the fixing test special car that loads testing apparatus to follow the tracks of the method that tested vehicle is tested.Except since equipment essential, emission is measured and exhaust need be guided to outside the direct measurement of testing vehicle, and other does not need the large test device measuring but still can be transported to testing vehicle by Wireless transmission mode for testing necessary vehicle operation data and sensing data.This just needs to solve two key issues in data transmission: the one, and the record of the relevant test data of tested vehicle sends; The 2nd, import with the Data Receiving of tested vehicle transmission and by the data mode conversion that vehicle-mounted testing apparatus can be integrated.
The utility model content
The utility model provides transmission of a kind of year test data short-distance wireless and converting system, can solve available technology adopting be fixed with the testing vehicle that loads testing apparatus follow the tracks of run in the wirelessly transmitting data in the tested vehicle emission measuring process such as technical matterss such as data recording, transmission, conversion and receptions.
In order to solve the problems of the technologies described above, the technical scheme that vehicle-mounted test data short-distance wireless transmission of the utility model and converting system are achieved is: this system comprises data acquisition unit and the transmitting terminal and the receiving end that is arranged in the testing vehicle that is arranged in the tested vehicle, described transmitting terminal comprises the wireless sending module that is connected with first computing machine, and described data acquisition unit is connected with described first computing machine; Described receiving end comprises wireless receiving module and the D/A converter module that is connected with second computing machine.
Vehicle-mounted test data short-distance wireless transmission of the utility model and converting system, wherein, described data acquisition unit comprises CAN bus message capture card, gps receiver and data collecting card; Described CAN cartoon is crossed the CAN interface module and is inserted vehicle CAN bus; Described wireless sending module and wireless receiving module all adopt RS-232 to change the tactic pattern of Zigbee; Described second computing machine and described D/A converter module all be arranged on testing vehicle in vehicle-mounted testing apparatus be connected; Being connected between described second computing machine and the vehicle testing equipment by the RS-232 serial ports; USB interface is passed through in being connected between described D/A converter module and the vehicle testing equipment.
Compared with prior art, the beneficial effects of the utility model are:
(1) because present most of testing apparatus is supported input of RS-232 serial data or analog quantity input, therefore vehicle-mounted test data short-distance wireless transmission of the utility model and converting system are the needs according to vehicle-mounted testing apparatus, after the test special car obtains data, adopt dual mode to realize the conversion output of data, comprising: a kind of is by the output of RS-232 serial data, and supplying with miscellaneous equipment needs; Another is by D/A converter module data conversion to be become analog quantity output, offers on-board emission test equipment (as measuring the OBS-2200 of engine gaseous state emission).Therefore solved in the prior art two key issues in data transmission, that is: the record of the relevant test data of the tested vehicle Data Receiving that sends and tested vehicle is sent and by vehicle-mounted testing apparatus can be integrated data mode conversion input.
(2) Radio Transmission Technology that relates in the utility model is selected the Zigbee wireless technology, mainly is that wireless transmission is used genus low speed, the small data quantity transmission is used because in vehicle-mounted test data short-distance wireless transmission and converting system; In addition, vehicle-mounted test is because the limitation of power supply capacity need be selected Low-power Technology as far as possible; And the ZigBee agreement is simple, can freely use, and cost is low; The effective range of Zigbee technology is 10～75 meters, the very short characteristics of tracking spacing when satisfying the test of test special car; Therefore, the application demand of each side of having selected the Zigbee technological synthesis.
(3) described wireless sending module in the utility model and wireless receiving module all adopt RS-232 to change the mode configuration of Zigbee, be convenient to link to each other with notebook computer, and this wireless transmission/receiver module curing data transforms router, the user need not to pay close attention to wireless transmission/reception programming, only needs to finish in upper computer software corresponding RS-232 serial ports transmission/reception program.
Description of drawings
Fig. 1 is the synoptic diagram of vehicle-mounted test data short-distance wireless transmission of the utility model and converting system;
Fig. 2 is the transmitting terminal system principle of compositionality block diagram of the utility model embodiment;
Fig. 3 is the receiving terminal system principle of compositionality block diagram of the utility model embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done and to be described in further detail.
Main position description of reference numerals in the Figure of description: 10 data collectors, 11CAN card, 12GPS receiver, 13 data collecting cards, 20 first computing machines, 30 wireless sending modules, 40 wireless receiving modules, 50 second computing machines, 60 on-board emission test equipment, 70 D/A converter modules, 80 data sources, 100 tested vehicles, 200 testing vehicles.
As shown in Figure 1, tested vehicle 100 travels with a determining deviation with testing vehicle 200 front and back, be equipped with the transmitting terminal that is used for collecting the data collector 10 of data source 80 and is used for wirelessly transmitting data on the tested vehicle 100, described transmitting terminal comprises the wireless sending module 30 that is connected with first computing machine 20, and described data acquisition unit 10 is connected with described first computing machine 20; In testing vehicle 200, be equipped with the wireless receiving module 40 and the D/A converter module 70 that are connected with second computing machine 50.Described first computing machine 20 and second computing machine 50 preferably adopt notebook computer.
The basic comprising of the data acquisition unit of the utility model embodiment and transmitting terminal as seen from Figure 2.The data source 80 of wirelessly transmitting data mainly contains three classes: CAN bus message, gps data and other sensing data.Wherein, the CAN bus message adopts the CAN card 11 of pcmcia interface or CAN to change the notebook computer of USB device access as first computing machine 20.Gps receiver 12 is selected RS-232 interface or USB interface for use, and it is integrated to be convenient to upper computer software.The data collecting card 13 of USB interface is selected in the collection of sensing data for use, insert in first computing machine 20 host computer data acquisition platform by USB interface based on the PC computer, this data acquisition platform adopts Lab View programming, it is that NI company utilizes the Software Development Platform of 32 planes of virtual instrument technique exploitation to the computer measurement and control field, LabView modularization, structurized design philosophy, and supportive at measurement and control area to the good software of a lot of functional modules, greatly improve the quality and the efficient of software programming.Wireless sending module 30 selects for use RS-232 to change the Zigbee wireless sending module of Zigbee pattern, be convenient to be connected with notebook computer, and the wireless module curing data transforms router, the user need not to pay close attention to the wireless transmission programming, only needs to finish under host computer Lab View platform corresponding RS-232 serial ports router.
The basic comprising of the wirelessly transmitting data receiving end of the utility model embodiment as seen from Figure 3.Wireless receiving module 40 is identical with the model of wireless sending module 30, only be that data transfer direction is opposite, be receive direction, promptly select for use RS-232 to change the Zigbee wireless receiving module of Zigbee pattern, Lab View programming is still adopted in its host computer Data Receiving software programming, after the Data Receiving, and on the one hand can stored record, and show in real time, also can change output on the other hand according to the needs of on-board emission test equipment 60.On-board emission test equipment 60 is because the singularity of its functions of use, lack opening and dirigibility with extraneous data-interface, but majority possesses serial ports input and analog quantity input interface, therefore the utility model embodiment to data secondary treating export by dual mode, supply with the integrated use of other testing apparatus: the one, by the RS-232 serial ports data are directly outputed to on-board emission test equipment 60; The 2nd, become analog quantity to offer on-board emission test equipment 60 (as measuring the OBS-2200 of engine gaseous state emission) data conversion by D/A converter module 70.The com interface that the output of RS-232 serial data can directly utilize notebook computer to carry, analog quantity output needs to adopt D/A converter module 70, and D/A converter module 70 is selected USB interface for use, and is can be by the hardware module of Lab View programmed environment support.Analog quantity output is designed to 6 passages, output voltage range 0～10V.
In sum, the utility model has designed a kind of based on the data transmission between Zigbee wireless technology realization transmitting terminal and the receiving end, its transmitting terminal is installed in tested vehicle, receiving end is installed in testing vehicle, receiving end constitutes a test macro as the various testing apparatuss of a data reception and converting unit and testing vehicle, its ultimate principle is: the vehicle operation data that vehicle-mounted test is required, often use as engine speed, moment of torsion, water temperature etc., can obtain by the information analysis on the automobile bus, present automobile-used bus mostly is the CAN bus, the consensus standard that on Physical layer, all meets ISO/OSI reference model regulation with data link layer, different with vehicle and manufacturer on application layer just, the communication protocol of following is different.Therefore can insert vehicle bus by the CAN interface module, resolve the CAN bus data and obtain required engine running parameter.For running velocity, information such as operation longitude and latitude etc. can be obtained by GPS, other in order to test required sensing data---as exhaust flow-meter, can obtain by data collecting module collected.The data of the engine operating parameter that obtains from the CAN bus, gps data, data collecting module collected, insert the upper computer software platform, mode by software programming realizes data integration, packing, utilizes the Zigbee Radio Transmission Technology to send data, is transferred to testing vehicle.
Utilize the utility model to carry out the choice of technology Zigbee wireless technology of wireless transmission, select the Zigbee Radio Transmission Technology mainly due to following some reason: the utility model wireless transmission use belong to low speed, the small data quantity transmission is used; Vehicle-mounted test is because the limitation of power supply capacity need be selected Low-power Technology as far as possible; The ZigBee agreement is simple, can freely use, and cost is low; 10～75 meters of Zigbee technology effective ranges, and the tracking spacing in testing vehicle when test is very short.The application demand of comprehensive each side, the Zigbee technology is a fine selection of satisfying the demand.
Although in conjunction with the accompanying drawings the utility model has been carried out foregoing description; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; under the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong to the row of protection of the present utility model.
Claims (7)
1. a vehicle-mounted test data short-distance wireless transmits and converting system, comprise the data acquisition unit and the transmitting terminal and the receiving end that is arranged in the testing vehicle that are arranged in the tested vehicle, it is characterized in that, described transmitting terminal comprises the wireless sending module that is connected with first computing machine, and described data acquisition unit is connected with described first computing machine; Described receiving end comprises wireless receiving module and the D/A converter module that is connected with second computing machine.
2. vehicle-mounted test data short-distance wireless transmission according to claim 1 and converting system is characterized in that described data acquisition unit comprises CAN bus message capture card, gps receiver and data collecting card.
3. vehicle-mounted test data short-distance wireless transmission according to claim 2 and converting system is characterized in that described CAN cartoon is crossed the CAN interface module and inserted vehicle CAN bus.
4. vehicle-mounted test data short-distance wireless transmission according to claim 1 and converting system is characterized in that described wireless sending module and wireless receiving module all adopt RS-232 to change the tactic pattern of Zigbee.
5. vehicle-mounted test data short-distance wireless transmission according to claim 1 and converting system is characterized in that, described second computing machine and described D/A converter module all be arranged on testing vehicle in vehicle-mounted testing apparatus be connected.
6. vehicle-mounted test data short-distance wireless transmission according to claim 5 and converting system is characterized in that, the RS-232 serial ports is passed through in being connected between described second computing machine and the vehicle testing equipment.
7. vehicle-mounted test data short-distance wireless transmission according to claim 5 and converting system is characterized in that, USB interface is passed through in being connected between described D/A converter module and the vehicle testing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201449677U CN201331827Y (en) | 2008-12-26 | 2008-12-26 | Vehicle-borne test data short-range wireless transmission and conversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201449677U CN201331827Y (en) | 2008-12-26 | 2008-12-26 | Vehicle-borne test data short-range wireless transmission and conversion system |
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| Publication Number | Publication Date |
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| CN201331827Y true CN201331827Y (en) | 2009-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201449677U Expired - Fee Related CN201331827Y (en) | 2008-12-26 | 2008-12-26 | Vehicle-borne test data short-range wireless transmission and conversion system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118904A (en) * | 2010-09-17 | 2013-05-22 | 歌乐株式会社 | Vehicle-mounted information system, vehicle-mounted device, and information terminal |
| CN103426281A (en) * | 2013-07-31 | 2013-12-04 | 宏景电子(芜湖)有限公司 | Test car remote monitoring and management system and control method thereof |
| CN103697916A (en) * | 2013-12-24 | 2014-04-02 | 河北汉光重工有限责任公司 | Virtual instrument of inertial measurement unit |
-
2008
- 2008-12-26 CN CNU2008201449677U patent/CN201331827Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118904A (en) * | 2010-09-17 | 2013-05-22 | 歌乐株式会社 | Vehicle-mounted information system, vehicle-mounted device, and information terminal |
| CN103118904B (en) * | 2010-09-17 | 2015-10-07 | 歌乐株式会社 | Inter-vehicle information system, car-mounted device, information terminal |
| CN103426281A (en) * | 2013-07-31 | 2013-12-04 | 宏景电子(芜湖)有限公司 | Test car remote monitoring and management system and control method thereof |
| CN103697916A (en) * | 2013-12-24 | 2014-04-02 | 河北汉光重工有限责任公司 | Virtual instrument of inertial measurement unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20111226 |