CN102303489B - Method and system for flexibly configuring tire pressure monitor system (TPMS) transmitter - Google Patents
Method and system for flexibly configuring tire pressure monitor system (TPMS) transmitter Download PDFInfo
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- CN102303489B CN102303489B CN 201110176915 CN201110176915A CN102303489B CN 102303489 B CN102303489 B CN 102303489B CN 201110176915 CN201110176915 CN 201110176915 CN 201110176915 A CN201110176915 A CN 201110176915A CN 102303489 B CN102303489 B CN 102303489B
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Abstract
The invention relates to a method and a system for flexibly configuring a tire pressure monitor system (TPMS) transmitter. The method comprises the following steps of: 1, storing the configuration data of the TPMS emitter in a storage; 2, sending a configuration data updating command to a low frequency (LF) receiving circuit of the TPMS transmitter by an LF transmission circuit of the LF transmitter; 3, sending an acknowledgement character (AKC) acknowledgement signal to an ultra high frequency (UHF) receiver of the LF transmitter by a UHF transmitter of the TPMS transmitter to ensure the validity of the configuration data updating command; and 4, updating the configuration data in the storage by the TPMS transmitter according to the received configuration data. The invention also provides the system for flexibly configuring the TPMS transmitter. The method and the system for flexibly configuring the TPMS transmitter do not additionally increase hardware cost, and the aim of updating the configuration data of the TPMS transmitter is fulfilled through non-electrical connection and in a wireless mode; and by the method and the system, the TPMS transmitter can be flexibly configured so as to adapt to the actual conditions of different models and tires, and different running strategies are set and the customizing requirements of a client are met.
Description
Technical field
The present invention relates to the vehicle-mounted product technical field of vehicle electronics, relate in particular to a kind of flexible configuration method and system of TPMS projector.
Background technology
In the process of running at high speed of automobile, tire fault is that all drivers worry and the most difficult prevention the most, also is the major reason that sudden traffic accident occurs.The traffic accident accident that causes by blowing out at present occupies the freeway accident accident umber one, and blowing out becomes one of arteries of communication killer.According to statistics, the traffic accident that occurs at China Expressway has 70% owing to blow out and cause, in this ratio of the U.S. then up to 80%.How to prevent from blowing out and become an important topic of safe driving.According to the analysis expert at national rubber tire quality surveillance center, the tyre pressure that maintains the standard travels and in time finds that tire gas leakage is to prevent the key of blowing out.And TPMS---Tire Pressure Monitor System undoubtedly will be desirable instrument.
Tire Pressure Monitor System adopts direct-type TPMS projector to be installed in inside tires usually, utilization is installed in the air pressure that each pressure sensor of taking turns tyre cavity is directly measured tire, utilizes the TPMS projector that pressure information is sent to the TPMS receptor from inside tires.The TPMS projector has special disposable installation environment, particular location is between profile and tire, the TPMS projector usually adopts the inferior battery of the lithium of disposable non-charging, and generally processes with encapsulating, so the TPMS projector belongs to disposable installation, non-maintaining and disassemble basically.As shown in Figure 1, it is the block diagram of existing TPMS projector.Existing TPMS projector mainly comprises embedded system 1, UHF projector (superfrequency projector) 2, antenna 3, sensor 4 and LF acceptor circuit 5 (low frequency receptor); Microcontroller 1 is connected with UHF projector 2, sensor 4 and 5 communications of LF acceptor circuit respectively, sensor 4 gathers the data such as air pressure of inside tires, microcontroller 1 is responsible for carrying out the control program of TPMS emitter terminals, and the data of collection are sent to the TPMS receptor by UHF projector 2 via antenna 3; In the prior art, LF acceptor circuit 5 is mainly used in the arousal function of TPMS projector, can realize that the effect of economizing on electricity, its specification can specifically select as accepting 125KHz ASK modulation (speed 2～4Kbit/s) signals.
According to TPMS system and operating needs, the TPMS projector needs to do following configuration usually at least:
A.ID sets: the TPMS receptor need be found out projector ID, and corresponding with axle number (tire location);
B. normal tire pressure: different kinds of tyre has different normal-criterions with vehicle;
C. Pressure/Temperature bound: the threshold value that is used for judging the Pressure/Temperature height;
D.TPMS projector operation strategy: comprise and measuring and the strategies such as the frequency of data transmission, dealing of abnormal data;
E. running state: projector comprises travelling position and the installation and operation state produced at least;
F. modulation system: projector can switch at ASK (amplitude shift key modulation) and FSK (shift keying modulation);
G. baseband signal data: comprise preamble code, ID and the forms such as data and check code;
H. other.
According to the method for TPMS transmitter configuration of the prior art, above-mentioned various configuration datas solidify basically in the code of TPMS projector, because the special disposable installation environment of TPMS projector, namely can't change its configuration after being mounted to it in tire.
Summary of the invention
Therefore, the object of the invention is to adapt to the special disposable installation environment of TPMS projector, but a kind of method and system of flexible configuration TPMS projector are provided.
For achieving the above object, the invention provides a kind of flexible configuration method of TPMS projector, it comprises:
The configuration data of step 1, TPMS projector is set to be stored in the memory device;
Step 2, the LF transmission circuit by the LF projector send the configuration data update instruction to the LF acceptor circuit of TPMS projector;
Step 3, the UHF projector by the TPMS projector send the ACK acknowledge signal to guarantee the validity of configuration data update instruction to the UHF receptor of LF projector;
Step 4, TPMS projector are according to the configuration data in the configuration data update instruction updated stored device that receives.
Wherein, described memory device is RAM or EEPROM.
Wherein, in the step 2, the configuration data update instruction is for sending one by one.
The present invention also provides a kind of flexible configuration system of TPMS projector, and it comprises:
The TPMS projector, it comprises for the memory device of preserving configuration data, the LF acceptor circuit that is used for reception configuration data update instruction and the UHF projector that is used for sending the ACK acknowledge signal; And
The LF projector, it comprises for the LF transmission circuit that sends the configuration data update instruction and for the UHF receptor that receives the ACK acknowledge signal;
During configuration data by this LF transmitter configuration TPMS projector, this LF projector sends the configuration data update instruction by the LF transmission circuit, the configuration data in the configuration data update instruction updated stored device that this TPMS projector receives according to its LF acceptor circuit; When this TPMS transmitter receipt during to actv. configuration data update instruction, it sends the ACK acknowledge signal to this LF projector, and this LF projector is according to the transmission of the reception condition control configuration data update instruction of ACK acknowledge signal.
Wherein, described memory device is RAM or EEPROM.
The flexible configuration method and system of TPMS projector of the present invention additionally do not increase hardware cost, adopt without electrical connection, by wireless mode, reach the purpose of upgrading TPMS transmitter configuration data; Adopt the flexible configuration method and system of TPMS projector of the present invention, but flexible configuration TPMS projector, and the actual conditions of adaptation different automobile types and tire are set different operation strategies, satisfy client's customization requirement.
Description of drawings
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention is described in detail, will make technical scheme of the present invention and other beneficial effects apparent.
In the accompanying drawing,
Fig. 1 is the block diagram of existing TPMS projector;
Fig. 2 is the principle of work scheme drawing of the flexible configuration method of TPMS projector of the present invention;
Fig. 3 is the hardware block diagram of the LF projector used in flexible configuration method one preferred embodiment of TPMS projector of the present invention;
Fig. 4 is TPMS projector (from the side) diagram of circuit of the flexible configuration method one preferred embodiment configuration data renewal process of TPMS projector of the present invention;
Fig. 5 is LF projector (master side) main flow chart of the flexible configuration method one preferred embodiment configuration data renewal process of TPMS projector of the present invention.
The specific embodiment
Referring to Fig. 2 and Fig. 3, Fig. 2 is the principle of work scheme drawing of the flexible configuration method of TPMS projector of the present invention, and Fig. 3 is the hardware block diagram of the LF projector used in flexible configuration method one preferred embodiment of TPMS projector of the present invention.In addition, the structure of the TPMS projector that the flexible configuration method of TPMS projector of the present invention is applied to can be referring to Fig. 1, and it can utilize existing TPMS projector to realize, need not to change the hardware configuration of existing TPMS projector.LF projector 7 mainly comprises microcontroller 71, UHF receptor 72 and LF transmission circuit 73 etc.
The flexible configuration method of TPMS projector of the present invention comprises:
The configuration data of step 1, TPMS projector 6 is set to be stored in the memory device; Configuration data in TPMS projector 6 codes is independent, be stored in RAM or EEPROM (the TPMS projector is power down process not, is stored among the RAM feasible), perhaps other can be erasable memory device, such as FLASH, be updated preparing.
Step 2, the LF transmission circuit 73 by LF projector 7 send the configuration data update instruction to the LF acceptor circuit 62 of TPMS projector 6; LF projector 7 is abideed by the LF communications protocol, and the configuration data with needs upgrade sends by LF transmission circuit 73; The LF acceptor circuit 62 of TPMS projector 6 is former in arousal function in the prior art, and the present invention expands its function greatly, and it is set to receive the configuration data update signal.
Step 3, the UHF projector 61 by TPMS projector 6 send ACK to the UHF receptor 72 of LF projector 7, and ((ACKnowledge Character, acknowledge character) acknowledge signal is to guarantee the validity of configuration data update instruction; Utilize UHF projector 61 to send the validity that ack signal is guaranteed the transmission of configuration data update instruction, LF projector 7 can transmit for bust this or wrong instruction again according to the validity of the situation decision instruction transmission of UHF receptor 72 reception ACK.
Step 4, TPMS projector 6 are according to the configuration data in the configuration data update instruction updated stored device that receives; The LF signal that PMS projector 6 receives from the LF channel, and according to wherein configuration data update instruction, write with a brush dipped in Chinese ink the configuration data in the memory device, realize the flexible configuration of PMS projector 6.
Referring to Fig. 4 and Fig. 5, Fig. 4 is TPMS projector (from the side) diagram of circuit of the flexible configuration method one preferred embodiment configuration data renewal process of TPMS projector of the present invention, and Fig. 5 is LF projector (master side) main flow chart.The implementation process of the flexible configuration method of TPMS projector of the present invention is actually in master side (master)---LF projector and from side (the slave)---communication process between the TPMS projector.Can pre-determine between master side with from the communications protocol between the side, by the response protocol of determining, finish the Reconfigurations data and be sent to from master side from the side, finish the configuration data updating task from the side.
LF projector and TPMS projector all can automatically perform by the program of its microcontroller the configuration data renewal process.According to shown in Figure 5, among this embodiment, the configuration data update instruction is for sending one by one, instruction of every transmission, the LF projector all can be waited for TPMS projector ACK acknowledge signal, sends situation so as to decision instruction, thereby selects to continue to send next bar or resend present instruction.
The present invention also provides a kind of flexible configuration system of TPMS projector, comprising:
The TPMS projector, it comprises for the memory device of preserving configuration data, the LF acceptor circuit that is used for reception configuration data update instruction and the UHF projector that is used for sending the ACK acknowledge signal; And
The LF projector, it comprises for the LF transmission circuit that sends the configuration data update instruction and for the UHF receptor that receives the ACK acknowledge signal;
During configuration data by this LF transmitter configuration TPMS projector, this LF projector sends the configuration data update instruction by the LF transmission circuit, the configuration data in the configuration data update instruction updated stored device that this TPMS projector receives according to its LF acceptor circuit; When this TPMS transmitter receipt during to actv. configuration data update instruction, it sends the ACK acknowledge signal to this LF projector, and this LF projector is according to the transmission of the reception condition control configuration data update instruction of ACK acknowledge signal.
Wherein, described memory device is RAM or EEPROM.
The flexible configuration method and system of TPMS projector of the present invention do not increase additional hardware resources, utilize LF (low frequency) communication port, wireless mode upgrades TPMS transmitter configuration data, reach flexibly, effect (utilize existing UHF radio channel, do ACK acknowledge signal passage) easily.
The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of the accompanying claim of the present invention.
Claims (4)
1. the flexible configuration method of a TPMS projector is characterized in that, comprising:
The configuration data of step 1, TPMS projector is set to be stored in the memory device;
Step 2, the LF transmission circuit by the LF projector send the configuration data update instruction to the LF acceptor circuit of TPMS projector;
Step 3, the UHF projector by the TPMS projector send the ACK acknowledge signal to guarantee the validity of configuration data update instruction to the UHF receptor of LF projector;
Step 4, TPMS projector are according to the configuration data in the configuration data update instruction updated stored device that receives;
In the step 2, the configuration data update instruction is for sending one by one.
2. the flexible configuration method of TPMS projector as claimed in claim 1 is characterized in that, described memory device is RAM or EEPROM.
3. the flexible configuration system of a TPMS projector is characterized in that, comprising:
The TPMS projector, it comprises for the memory device of preserving configuration data, the LF acceptor circuit that is used for reception configuration data update instruction and the UHF projector that is used for sending the ACK acknowledge signal; And
The LF projector, it comprises for the LF transmission circuit that sends the configuration data update instruction and for the UHF receptor that receives the ACK acknowledge signal;
During configuration data by this LF transmitter configuration TPMS projector, this LF projector sends the configuration data update instruction by the LF transmission circuit, the configuration data in the configuration data update instruction updated stored device that this TPMS projector receives according to its LF acceptor circuit; When this TPMS transmitter receipt during to actv. configuration data update instruction, it sends the ACK acknowledge signal to this LF projector, and this LF projector is according to the transmission of the reception condition control configuration data update instruction of ACK acknowledge signal.
4. the flexible configuration system of TPMS projector as claimed in claim 3 is characterized in that, described memory device is RAM or EEPROM.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110176915 CN102303489B (en) | 2011-06-28 | 2011-06-28 | Method and system for flexibly configuring tire pressure monitor system (TPMS) transmitter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110176915 CN102303489B (en) | 2011-06-28 | 2011-06-28 | Method and system for flexibly configuring tire pressure monitor system (TPMS) transmitter |
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| CN102303489A CN102303489A (en) | 2012-01-04 |
| CN102303489B true CN102303489B (en) | 2013-10-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9522579B1 (en) * | 2015-06-02 | 2016-12-20 | Continental Automotive Systems, Inc. | Tire pressure monitoring sensor |
| FR3050690B1 (en) | 2016-05-02 | 2018-05-04 | Continental Automotive France | METHOD FOR DOWNLOADING DIGITAL DATA IN AN ELECTRONIC UNIT FOR MEASURING OPERATING PARAMETERS OF A MOTOR VEHICLE WHEEL BY TRANSMISSION OF MECHANICAL WAVES |
| 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 |
| CN108958769A (en) * | 2018-06-26 | 2018-12-07 | 四川斐讯信息技术有限公司 | A kind of embedded device software systems restorative procedure and system |
| CN112319146B (en) * | 2020-10-16 | 2022-10-11 | 深圳市云伽智能技术有限公司 | Learning method, device, sensor, system and medium of tire pressure monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7839273B2 (en) * | 2003-11-25 | 2010-11-23 | Joseph Akwo Tabe | Vehicle interactive electronic wireless air pressure system's information: “VIEW A PSI” |
| US7202777B2 (en) * | 2004-01-09 | 2007-04-10 | Denso Corporation | Tire condition monitoring system |
| JP5339333B2 (en) * | 2008-03-11 | 2013-11-13 | オムロンオートモーティブエレクトロニクス株式会社 | Tire monitor device |
| US8031064B2 (en) * | 2008-09-17 | 2011-10-04 | Orange Electronic Co., Ltd. | Tire pressure detecting apparatus and tire pressure detector identification copying method for the same |
| CN101791931B (en) * | 2009-02-03 | 2012-12-19 | 上海保隆汽车科技股份有限公司 | Tire pressure monitoring system |
| CN202174900U (en) * | 2011-06-28 | 2012-03-28 | 深圳市元征软件开发有限公司 | Flexible configuration system with TPMS (Tire Pressure Monitor System) emitter |
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