CN101509818A - Vehicle-mounted data communication internal communication method and system - Google Patents
Vehicle-mounted data communication internal communication method and system Download PDFInfo
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- CN101509818A CN101509818A CNA2009101053626A CN200910105362A CN101509818A CN 101509818 A CN101509818 A CN 101509818A CN A2009101053626 A CNA2009101053626 A CN A2009101053626A CN 200910105362 A CN200910105362 A CN 200910105362A CN 101509818 A CN101509818 A CN 101509818A
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Abstract
The invention discloses an internal communication method and system for vehicle data exchange. The method includes the steps that vehicle DVD or GPS sends a command to TPMS; after receiving the command sent by the vehicle DVD or GPS, the TPMS replies with corresponding data according to the command, wherein a data frame for the communication between the vehicle DVD or GPS and the TPMS includes the three parts of a frame head, a data segment and a check byte. The frame head includes a start byte, a target address, a source address, a length byte and four bytes. And the data segment includes a function number, a sub-function number and a plurality of data bytes. The method and the system can cause the vehicle DVD or GPS to carry out data exchange with the TPMS.
Description
Technical field
The present invention relates to a kind of vehicle-mounted internal communication protocol using, relate in particular to a kind of internal communication method and system of vehicle-mounted data exchange.
Background technology
At present, various automobiles, especially car generally are equipped with system for monitoring pressure in tyre (TPMS), so that automobile or car owner's monitoring tyres pressure, and then the speed of adjustment automobile.For making automobile have amusement or positioning function, some automobile also is equipped with vehicle-carrying DVD or GPS.
System for monitoring pressure in tyre (TPMS) can not carry out information interaction with vehicle-carrying DVD or GPS, does not have the mutual data layout of standard but at present.
Therefore, how to make vehicle-carrying DVD or GPS and TPMS (system for monitoring pressure in tyre) carry out exchanges data, make automobile have more the market competitiveness, become problem anxious to be solved.
Summary of the invention
The object of the present invention is to provide a kind of internal communication method and system of vehicle-mounted data exchange, can be so that vehicle-carrying DVD or vehicle GPS can carry out exchanges data with TPMS (system for monitoring pressure in tyre).
For solving technical matters of the present invention, the present invention discloses a kind of internal communication method of vehicle-mounted data exchange, comprising:
Vehicle-carrying DVD or vehicle GPS send order to TPMS;
Described TPMS replys corresponding data according to described order after receiving the order of described vehicle-carrying DVD or vehicle GPS transmission;
Wherein, the Frame that described vehicle-carrying DVD or vehicle GPS are communicated by letter with described TPMS comprises frame head, data segment, check byte three parts, frame head comprises start byte, destination address, source address, four bytes of length byte, and data segment comprises function number, subfunction number and plurality of data byte.
More excellent, described order for the order of shaking hands, the order of inquiry TPMS tire data, inquiry TPMS threshold setting order, the order of tire ID sign indicating number is set or TPMS threshold setting order is set.
More excellent, when described order is the order of inquiry TPMS tire data, the data that described TPMS replys comprise air pressure, temperature, the status information of tire;
When described order is the order of the inquiry TPMS thresholding value of establishing, the data of described TPMS answer are the data of Set For Current, comprise hyperbar value, barometric minimum value and maximum temperature value;
When described order for tire ID sign indicating number being set or the order of TPMS thresholding is set, described TPMS upgrades original setting by tire ID that is sent out and threshold value after receiving order being set, and replys the order of shaking hands, expression is provided with success.
For solving technical matters of the present invention, the present invention also discloses a kind of intercom system of vehicle-mounted data exchange, comprising: vehicle-carrying DVD, vehicle GPS and TPMS, wherein,
Described vehicle-carrying DVD or vehicle GPS are used for sending order to TPMS;
Described TPMS is used to receive the order of described vehicle-carrying DVD or vehicle GPS transmission, and replys corresponding data according to described order;
Wherein, the Frame that described vehicle-carrying DVD or vehicle GPS are communicated by letter with described TPMS comprises frame head, data segment, check byte three parts, frame head comprises start byte, destination address, source address, four bytes of length byte, and data segment comprises function number, subfunction number and plurality of data byte.
More excellent, described order for the order of shaking hands, the order of inquiry TPMS tire data, inquiry TPMS threshold setting order, the order of tire ID sign indicating number is set or TPMS threshold setting order is set.
More excellent, when described order is the order of inquiry TPMS tire data, the data that described TPMS replys comprise air pressure, temperature, the status information of tire;
When described order is the order of the inquiry TPMS thresholding value of establishing, the data of described TPMS answer are the data of Set For Current, comprise hyperbar value, barometric minimum value and maximum temperature value;
When described order for tire ID sign indicating number being set or the order of TPMS thresholding is set, described TPMS also is used for upgrading original setting by tire ID that is sent out and threshold value after order is set receiving, and replys the order of shaking hands, expression is provided with success.
Compared with prior art, the present invention has following beneficial effect:
The internal communication method and the system of a kind of vehicle-mounted data exchange disclosed by the invention, its mutual communication protocol defines data frame format, data field, the data field value of Management Information Base frame can be so that vehicle-carrying DVD or vehicle GPS and TPMS carry out exchanges data.
Description of drawings
Fig. 1 is the intercom system structural representation of a kind of vehicle-mounted data exchange of the embodiment of the invention;
Fig. 2 is the internal communication method schematic flow sheet of a kind of vehicle-mounted data exchange of another embodiment of the present invention.
Specific embodiment
The invention provides a kind of internal communication method and system of vehicle-mounted data exchange, can be so that vehicle-carrying DVD or GPS can carry out exchanges data with TPMS.
As shown in Figure 1, be the intercom system structural representation of the disclosed a kind of vehicle-mounted data exchange of the embodiment of the invention, the intercom system of this vehicle-mounted data exchange can comprise TPMS11, vehicle-carrying DVD 13 and vehicle GPS 15.
Described TPMS11, be used to receive the order of described vehicle-carrying DVD 13 or vehicle GPS 15 transmissions, return corresponding data according to described order, wherein, these data can comprise one of any or combination in any information such as ID sign indicating number, cell voltage, tire condition of air pressure, temperature, the transmitter of tire.Described TPMS11, can also be according to the number order of vehicle-carrying DVD 13 or vehicle GPS 15 transmissions, the order of tire ID sign indicating number for example is set or TPMS threshold setting order is set, the ID sign indicating number of any wheel is set, the threshold value of reporting to the police (comprising high threshold, minimum threshold and maximum temperature value) is also replied by the order of shaking hands, and represents to be arranged to merit by this order of shaking hands.
Described vehicle-carrying DVD 13 is used for sending order to described TPMS11, this order can be shake hands order, the order of inquiry TPMS tire data, inquiry TPMS threshold setting order, the order of tire ID sign indicating number is set or TPMS threshold setting order is set.
Described vehicle GPS 15 is used for sending order to described TPMS11, this order can be shake hands order, the order of inquiry TPMS tire data, inquiry TPMS threshold setting order, the order of tire ID sign indicating number is set or TPMS threshold setting order is set.
Wherein, the mutual communication protocol of described vehicle-carrying DVD 13 or vehicle GPS 15 and described TPMS11 defines data frame format, data field, the data field value of Management Information Base frame.The data frame structure of its communication can be as described below.
A Frame comprises frame head, data segment, check byte three parts, frame head comprises start byte, destination address, source address, four bytes of length byte, data segment comprises function number, subfunction number and plurality of data byte, but the information of described Frame has extensible, upgradeable and enhanced features.Frame structure can be as shown in table 1.
Table 1
The concrete course of work of the intercom system of the vehicle-mounted data exchange of present embodiment can be with reference to the internal communication method of the disclosed a kind of vehicle-mounted data exchange of following embodiment.
As shown in Figure 2, the internal communication method schematic flow sheet that exchanges for the disclosed a kind of vehicle-mounted data of another embodiment of the present invention.
Vehicle-carrying DVD or vehicle GPS send order to TPMS, this order can be shake hands order, the order of inquiry TPMS tire data, inquiry TPMS threshold setting order, the order of tire ID sign indicating number is set or TPMS threshold setting order etc. is set.
TPMS returns corresponding data according to described order after receiving the order of described vehicle-carrying DVD 13 or vehicle GPS 15 transmissions.
It mainly is an inquiry/response communication that TPMS communicates by letter with vehicle-carrying DVD or vehicle GPS, and wherein, the data frame structure of communication can be as described below:
A Frame comprises frame head, data segment, check byte three parts, and frame head comprises start byte, destination address, source address, four bytes of length byte, and data segment comprises function number, subfunction number and plurality of data byte, and frame structure can be as shown in table 1.
For example, vehicle-carrying DVD or vehicle GPS send and shake hands order to TPMS, after TPMS receives the order of shaking hands, just reply the order of shaking hands.
For example, vehicle-carrying DVD or vehicle GPS send the order of inquiry tire data to TPMS, after TPMS receives the order of inquiry tire, just reply the data of each tire, can comprise the information such as air pressure, temperature, state of each tire.
For example, vehicle-carrying DVD or vehicle GPS send the order of the inquiry TPMS thresholding value of establishing to TPMS, after TPMS receives that the inquiry value of establishing is ordered, and answer Set For Current data (comprise hyperbar value, barometric minimum value and maximum temperature value).
For example, vehicle-carrying DVD or vehicle GPS send and tire ID sign indicating number are set or the order of TPMS thresholding are set to TPMS, and TPMS upgrades original setting by tire ID that is sent out and threshold value after receiving order being set, and replys the order of shaking hands, and expression is provided with success.
In said process, TPMS can wait for the order that vehicle-carrying DVD or vehicle GPS send.
In sum, the invention provides a kind of internal communication method and system of vehicle-mounted data exchange, can be so that vehicle-carrying DVD or GPS can carry out exchanges data with TPMS.
Claims (6)
1, a kind of internal communication method of vehicle-mounted data exchange is characterized in that, comprising:
Vehicle-carrying DVD or vehicle GPS send order to TPMS;
Described TPMS replys corresponding data according to described order after receiving the order of described vehicle-carrying DVD or vehicle GPS transmission;
Wherein, the Frame that described vehicle-carrying DVD or vehicle GPS are communicated by letter with described TPMS comprises frame head, data segment, check byte three parts, frame head comprises start byte, destination address, source address, four bytes of length byte, and data segment comprises function number, subfunction number and plurality of data byte.
2, the method for claim 1 is characterized in that, described order for the order of shaking hands, the order of inquiry TPMS tire data, inquiry TPMS threshold setting order, the order of tire ID sign indicating number is set or TPMS threshold setting order is set.
3, method as claimed in claim 2 is characterized in that, when described order is the order of inquiry TPMS tire data, the data that described TPMS replys comprise air pressure, temperature, the status information of tire;
When described order is the order of the inquiry TPMS thresholding value of establishing, the data of described TPMS answer are the data of Set For Current, comprise hyperbar value, barometric minimum value and maximum temperature value;
When described order for tire ID sign indicating number being set or the order of TPMS thresholding is set, described TPMS upgrades original setting by tire ID that is sent out and threshold value after receiving order being set, and replys the order of shaking hands, expression is provided with success.
4, a kind of intercom system of vehicle-mounted data exchange is characterized in that, comprising: vehicle-carrying DVD, vehicle GPS and TPMS, wherein
Described vehicle-carrying DVD or vehicle GPS are used for sending order to TPMS;
Described TPMS is used to receive the order of described vehicle-carrying DVD or vehicle GPS transmission, and replys corresponding data according to described order;
Wherein, the Frame that described vehicle-carrying DVD or vehicle GPS are communicated by letter with described TPMS comprises frame head, data segment, check byte three parts, frame head comprises start byte, destination address, source address, four bytes of length byte, and data segment comprises function number, subfunction number and plurality of data byte.
5, system as claimed in claim 4 is characterized in that, described order for the order of shaking hands, the order of inquiry TPMS tire data, inquiry TPMS threshold setting order, the order of tire ID sign indicating number is set or TPMS threshold setting order is set.
6, system as claimed in claim 5 is characterized in that, when described order is the order of inquiry TPMS tire data, the data that described TPMS replys comprise air pressure, temperature, the status information of tire;
When described order is the order of the inquiry TPMS thresholding value of establishing, the data of described TPMS answer are the data of Set For Current, comprise hyperbar value, barometric minimum value and maximum temperature value;
When described order for tire ID sign indicating number being set or the order of TPMS thresholding is set, described TPMS also is used for upgrading original setting by tire ID that is sent out and threshold value after order is set receiving, and replys the order of shaking hands, expression is provided with success.
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| CN2009101053626A CN101509818B (en) | 2009-02-13 | 2009-02-13 | Vehicle-mounted data communication internal communication method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104954374A (en) * | 2015-06-15 | 2015-09-30 | 上海网车科技有限公司 | IOV (Internet of Vehicles) communication protocol design method |
| CN104964789A (en) * | 2015-06-05 | 2015-10-07 | 江苏博锐格电子科技有限公司 | Portable TPMS performance testing and functional self-check system and implementation method thereof |
| US9221309B2 (en) | 2012-02-06 | 2015-12-29 | Infineon Technologies Ag | Wheel localizer, wheel localization device, system, method and computer program for locating a position of a wheel |
| US9251120B2 (en) | 2012-08-27 | 2016-02-02 | Infineon Technologies Ag | Wheel localizer, wheel localization device, system, method and computer program for locating a position of a wheel |
| US10093137B2 (en) | 2012-08-27 | 2018-10-09 | Infineon Technologies Ag | Wheel localizer, wheel localization device, system, method and computer program for locating a position of a wheel |
| CN108638764A (en) * | 2018-04-10 | 2018-10-12 | 深圳市沃特沃德股份有限公司 | Tire pressure equipment exchange method and car-mounted terminal |
| CN110146215A (en) * | 2019-05-19 | 2019-08-20 | 瑞立集团瑞安汽车零部件有限公司 | A kind of baroceptor with temperature-compensating Yu parameter tuning measure |
| WO2020063861A1 (en) * | 2018-09-29 | 2020-04-02 | 深圳市道通科技股份有限公司 | Tire pressure sensor signal analysis method and apparatus, tire pressure receiver and diagnostic system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1285466C (en) * | 2004-11-01 | 2006-11-22 | 北京时代光华电子技术有限公司 | Vehicle mounted sound equipment with tire pressure and temperature monitoring function |
| CN2802920Y (en) * | 2005-07-04 | 2006-08-02 | 深圳市航盛电子股份有限公司 | Vehicle acoustic equipment with tyre pressure monitoring alarm function |
| KR100718872B1 (en) * | 2006-03-24 | 2007-05-17 | (주)프로차일드 | Gps module data distribution apparatus for vehicle equipment |
| CN201194130Y (en) * | 2007-12-19 | 2009-02-11 | 奇瑞汽车股份有限公司 | TPMS information prompt system |
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2009
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9221309B2 (en) | 2012-02-06 | 2015-12-29 | Infineon Technologies Ag | Wheel localizer, wheel localization device, system, method and computer program for locating a position of a wheel |
| US9251120B2 (en) | 2012-08-27 | 2016-02-02 | Infineon Technologies Ag | Wheel localizer, wheel localization device, system, method and computer program for locating a position of a wheel |
| US10093137B2 (en) | 2012-08-27 | 2018-10-09 | Infineon Technologies Ag | Wheel localizer, wheel localization device, system, method and computer program for locating a position of a wheel |
| US10870321B2 (en) | 2012-08-27 | 2020-12-22 | Infineon Technologies Ag | Wheel localizer, wheel localization device, system, method and computer program for locating a position of a wheel |
| CN104964789A (en) * | 2015-06-05 | 2015-10-07 | 江苏博锐格电子科技有限公司 | Portable TPMS performance testing and functional self-check system and implementation method thereof |
| CN104954374A (en) * | 2015-06-15 | 2015-09-30 | 上海网车科技有限公司 | IOV (Internet of Vehicles) communication protocol design method |
| CN104954374B (en) * | 2015-06-15 | 2018-11-20 | 上海网车科技有限公司 | A kind of design method of car networking communication protocol |
| CN108638764A (en) * | 2018-04-10 | 2018-10-12 | 深圳市沃特沃德股份有限公司 | Tire pressure equipment exchange method and car-mounted terminal |
| WO2020063861A1 (en) * | 2018-09-29 | 2020-04-02 | 深圳市道通科技股份有限公司 | Tire pressure sensor signal analysis method and apparatus, tire pressure receiver and diagnostic system |
| CN110146215A (en) * | 2019-05-19 | 2019-08-20 | 瑞立集团瑞安汽车零部件有限公司 | A kind of baroceptor with temperature-compensating Yu parameter tuning measure |
| CN110146215B (en) * | 2019-05-19 | 2021-02-26 | 瑞立集团瑞安汽车零部件有限公司 | Air pressure sensor with temperature compensation and parameter setting measures |
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