CN102991283B - Tire pressure monitoring system and its implementation - Google Patents
Tire pressure monitoring system and its implementation Download PDFInfo
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- CN102991283B CN102991283B CN201110276284.3A CN201110276284A CN102991283B CN 102991283 B CN102991283 B CN 102991283B CN 201110276284 A CN201110276284 A CN 201110276284A CN 102991283 B CN102991283 B CN 102991283B
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Abstract
The invention discloses a kind of tire pressure monitoring system, comprise multiple tire pressure sensor, be arranged in each motor tire respectively; Each tire pressure sensor comprises reception wake module, sensor chip high frequency antenna; The wake-up signal that described reception wake module response tire pressure monitoring system main frame sends; Pressure in described sensor chip monitoring motor tire; Described high frequency antenna is used for receiving and sending signal.Also comprise a tire pressure monitoring system main frame, comprise system host module and high frequency antenna; Described system host module sends wake-up signal to tire pressure sensor, receives pressure data, judge whether each tire pressure is in normal range, judge whether to send alerting signal from each tire pressure sensor; Described high frequency antenna is used for receiving and sending signal.Simple installation of the present invention, reduces financial cost simultaneously.The invention also discloses its implementation, the communication modes adopting two-way ID to confirm, decreases potential safety hazard.
Description
Technical field
The present invention relates to technical field of automotive electronics, particularly relate to tire pressure monitoring system.
Background technology
Current most tire pressure monitoring system comprises:
---multiple tire pressure sensor, lays respectively among each motor tire; Each tire pressure sensor is integrated with a low frequency reception antenna and a high-frequency emission antenna;
---multiple low frequency trigger module, lays respectively at outside each motor tire;
---Receiving Host, such as, be the ECU (electronic control unit) of automobile, be connected by many wire harness with multiple low frequency trigger module.Described Receiving Host is also integrated with a high frequency receiving antenna.
The implementation method of described tire pressure monitoring system is such: outside each motor tire, be provided with a wire harness be connected to low frequency trigger module, for sending low frequency energizing signal.These wire harness are connected to Receiving Host, are control the transmission of low frequency signal by Receiving Host.After each tire pressure sensor receives low frequency energizing signal, the tire pressure detected is sent out by high-frequency emission antenna.Receiving Host obtains by high frequency receiving antenna the tire pressure data that each tire pressure sensor detects, and exceeds safe range, then send alerting signal once find that there is.
What above-mentioned tire pressure monitoring system adopted is the tire pressure sensor with low frequency reception antenna, due to low frequency signal (below 300KHz, be such as 125KHz) transmission distance very short, therefore must lay wire harness and connect low frequency trigger module outside each motor tire.And at vapour Bus inner layout, many wire harness are installed and multiple low frequency trigger module is cumbersome.
What the implementation method of above-mentioned tire pressure monitoring system adopted is one-way communication mode, the one-way communication namely between Receiving Host to tire pressure sensor.So just, make the real-time of communication not strong, and communication signal is not through confirming, likely causes and fails to report alert or flase alarm, there is certain potential safety hazard.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of tire pressure monitoring system, and this system does not need at body mount line bundle, thus simple installation.For this reason, present invention also offers the implementation method of described tire pressure monitoring system, the method increase the real-time of communication, add the reliability of communication, can avoid failing to report alert or flase alarm generation.
For solving the problems of the technologies described above, tire pressure monitoring system of the present invention comprises:
---multiple tire pressure sensor, is arranged in each motor tire respectively; Each tire pressure sensor comprises reception wake module, sensor chip and high frequency antenna; The wake-up signal that the tire pressure monitoring system main frame that described reception wake module response ID mates sends; Pressure in described sensor chip monitoring motor tire; Described high frequency antenna is used for receiving and sending signal;
---tire pressure monitoring system main frame, comprises system host module and high frequency antenna; Described system host module sends wake-up signal to tire pressure sensor, receives pressure data, judge whether each tire pressure is in normal range, judge whether to send alerting signal from each tire pressure sensor of ID coupling; Described high frequency antenna is used for receiving and sending signal.
The implementation method of described tire pressure monitoring system comprises the steps:
1st step, each tire pressure sensor arranges a sensor ID, and the tire pressure monitoring system host stores on an automobile has the sensor ID of all tire pressure sensor that this automobile is installed;
Each tire pressure monitoring system main frame arranges a host id, and all tire pressure sensor on an automobile all stores the host id of the tire pressure monitoring system main frame on this automobile;
2nd step, wake-up signal is sent by high frequency antenna by the system host module of tire pressure monitoring system main frame, includes the host id of this tire pressure monitoring system main frame in described wake-up signal;
3rd step, the reception wake module of tire pressure sensor receives described wake-up signal by high frequency antenna, and checks whether the host id of wake-up signal mates;
If it is wake sensor chip up, sensor chip is waken up rear detection motor tire internal pressure, and is sent by high frequency antenna together with the sensor ID of this tire pressure sensor;
If otherwise ignore this wake-up signal;
4th step, the system host module of tire pressure monitoring system main frame receives the pressure data of tire pressure sensor transmission by high frequency antenna, and checks whether sensor ID wherein mates;
If it is described pressure data is stored;
If otherwise abandon described pressure data;
5th step, whether the pressure of each motor tire of system host module check of tire pressure monitoring system main frame is within normal range;
If it is monitoring is continued;
If otherwise send alerting signal.
Tire pressure monitoring system of the present invention is all provided with high frequency antenna in tire pressure sensor and tire pressure monitoring system main frame, high-frequency signal (more than 3MHz, be such as 315MHz, 434MHz etc.) transmission distance far away, thus do not need the wire harness receiving low frequency signal is installed in vehicle body again, thus make installation more easy, reduce financial cost simultaneously.
The communication modes that the implementation method of tire pressure monitoring system of the present invention adopts two-way ID to confirm, ensure that the safe, effective of intercommunication, thus decreases potential safety hazard.
Accompanying drawing explanation
Fig. 1 is the structural representation of tire pressure monitoring system of the present invention;
Fig. 2 is the diagram of circuit of the implementation method of tire pressure monitoring system of the present invention.
Description of reference numerals in figure:
10 is tire pressure sensor; 11 for receiving wake module; 12 is sensor chip; 13 is high frequency antenna; 20 is tire pressure monitoring system main frame; 21 is system host module; 22 is high frequency antenna.
Detailed description of the invention
Refer to Fig. 1, tire pressure monitoring system of the present invention comprises:
---multiple tire pressure sensor 10, is arranged in each motor tire respectively.Each tire pressure sensor 10 comprises reception wake module 11, sensor chip 12 and high frequency antenna 13.Wherein, reception wake module 11 responds the wake-up signal that tire pressure monitoring system main frame 20 sends; Pressure in sensor chip 12 measured automobiles tire; High frequency antenna 13 is for receiving and sending signal.
---a tire pressure monitoring system main frame 20, comprises system host module 21 and high frequency antenna 22.Wherein, system host module 11 sends wake-up signal to tire pressure sensor 10, receives pressure data from each tire pressure sensor 10, judges whether each tire pressure is in normal range, judges whether to send alerting signal; High frequency antenna 22 is for receiving and sending signal.System host module 21 is such as the ECU of automobile.
Described sensor chip 12 at least comprises pressure sensor chip, is used for detecting the pressure in motor tire; Also comprise temperature sensor chip, acceleration sensor chip etc. alternatively, be used for respectively detecting the temperature in motor tire, the acceleration/accel of motor tire.
In tire pressure monitoring system of the present invention, a high frequency antenna 13 and high frequency antenna 22 is respectively had in tire pressure sensor 10 side and tire pressure monitoring system main frame 20 side, the communication of two side datas all sends with high-frequency signal and receives thus, thus significantly expand communication distance, also just without the need to arranging the reception wire harness of low frequency signal outside each motor tire.
Refer to Fig. 2, the implementation method of tire pressure monitoring system of the present invention comprises the steps:
1st step, each tire pressure sensor 10 arranges a mutual unduplicated sensor ID (heading code), and the tire pressure monitoring system main frame 20 on an automobile stores the sensor ID of all tire pressure sensor 10 on this automobile.The sensor ID of the tire pressure sensor 10 on different automobile also can not repeat.
Each tire pressure monitoring system main frame 20 arranges a mutual unduplicated host id, and all tire pressure sensor 10 on an automobile all stores the host id of the tire pressure monitoring system main frame 20 on this automobile.The host id of the tire pressure monitoring system main frame 20 on different automobile also can not repeat.
2nd step, wake-up signal is sent by high frequency antenna 22 by the system host module 21 in tire pressure monitoring system main frame 20, includes the host id of this tire pressure monitoring system main frame 20 in described wake-up signal.
3rd step, the reception wake module 11 in tire pressure sensor 10 receives described wake-up signal by high frequency antenna 13, and checks that whether the host id of described wake-up signal is the host id of the tire pressure monitoring system main frame 20 on this automobile.
If so, then receive wake module 11 and wake sensor chip 12 up, even if sensor chip 12 is in running order.Sensor chip 12 is waken up the pressure data in rear detection motor tire, and is sent by high frequency antenna 13 together with the sensor ID of this tire pressure sensor 10;
If not, then receive wake module 11 and ignore described wake-up signal.
4th step, the system host module 21 in tire pressure monitoring system main frame 20 receives by high frequency antenna 22 pressure data that tire pressure sensor sends, and checks that whether sensor ID is wherein the sensor ID of the tire pressure sensor 10 on this automobile.
If so, then described pressure data stores by system host module 21.
If not, then system host module 21 abandons described pressure data.
5th step, the system host module 21 in tire pressure monitoring system main frame 20 checks pressure data that the tire pressure sensor 10 of each motor tire sends it back whether within normal range.
If within normal range, then system host module 21 continues monitoring.
If exceed normal range, then system host module 21 sends alerting signal.The form of alerting signal comprises: the display screen display in vehicle, signal of sounding, ring loudspeaker, light flash etc.
Further, in described method the 3rd step, the pressure data including sensor ID and host id after one section of random time delays, then is sent by high frequency antenna 13 by sensor chip 12.Described one section of random time delays such as realizes by random number functions, and simultaneously the object of such time delay avoids multiple tire pressure sensor 10 to send pressure data, causes the interference between high-frequency signal.
Further, in described method the 3rd step, described pressure data also comprises temperature and/or acceleration information.In described method the 5th step, system host module 21 also checks the temperature that the tire pressure sensor 10 of each motor tire sends it back and/or acceleration information whether within normal range.
The implementation method of tire pressure monitoring system of the present invention adopts intercommunication mode, guarantees the real-time of communication.Adopt sensor ID and host id to add their confirmation during communication, guarantee the correct of communication.
These are only the preferred embodiments of the present invention, be not intended to limit the present invention.For a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. an implementation method for tire pressure monitoring system, described tire pressure monitoring system comprises:
---multiple tire pressure sensor, is arranged in each motor tire respectively; Each tire pressure sensor comprises reception wake module, sensor chip and high frequency antenna; The wake-up signal comprising correct host id that described reception wake module response tire pressure monitoring system main frame sends; Pressure in described sensor chip monitoring motor tire; Described high frequency antenna is used for receiving and sending signal;
---tire pressure monitoring system main frame, comprises system host module and high frequency antenna; Described system host module sends wake-up signal to tire pressure sensor, contains the pressure data of correct sensor ID, judge whether each tire pressure is in normal range, judge whether to send alerting signal from each tire pressure sensor receiving package; Described high frequency antenna is used for receiving and sending signal;
It is characterized in that, described implementation method comprises the steps:
1st step, each tire pressure sensor arranges a sensor ID, and the tire pressure monitoring system host stores on an automobile has the sensor ID of all tire pressure sensor that this automobile is installed;
Each tire pressure monitoring system main frame arranges a host id, and all tire pressure sensor on an automobile all stores the host id of the tire pressure monitoring system main frame on this automobile;
2nd step, wake-up signal is sent by high frequency antenna by the system host module of tire pressure monitoring system main frame, includes the host id of this tire pressure monitoring system main frame in described wake-up signal;
3rd step, the reception wake module of tire pressure sensor receives described wake-up signal by high frequency antenna, and checks whether the host id of wake-up signal mates;
If it is wake sensor chip up, sensor chip is waken up rear detection motor tire internal pressure, and is sent by high frequency antenna together with the sensor ID of this tire pressure sensor;
If otherwise ignore this wake-up signal;
4th step, the system host module of tire pressure monitoring system main frame receives the pressure data of tire pressure sensor transmission by high frequency antenna, and checks whether sensor ID wherein mates;
If it is described pressure data is stored;
If otherwise abandon described pressure data;
5th step, whether the pressure of each motor tire of system host module check of tire pressure monitoring system main frame is within normal range;
If it is monitoring is continued;
If otherwise send alerting signal.
2. the implementation method of tire pressure monitoring system according to claim 1, is characterized in that, in described method the 3rd step, pressure data after one section of random time delays, then is sent by high frequency antenna by sensor chip; Described pressure data comprises the sensor ID of this tire pressure sensor.
3. the implementation method of tire pressure monitoring system according to claim 1, is characterized in that, in described method the 3rd step, pressure data is sent by high frequency antenna by sensor chip; Described pressure data comprises the sensor ID of this tire pressure sensor, also comprises the acceleration/accel of temperature in motor tire, motor tire;
In described method the 5th step, system host module also checks the temperature of each motor tire and acceleration/accel whether within normal range; If it is monitoring is continued; If otherwise send alerting signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110276284.3A CN102991283B (en) | 2011-09-16 | 2011-09-16 | Tire pressure monitoring system and its implementation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110276284.3A CN102991283B (en) | 2011-09-16 | 2011-09-16 | Tire pressure monitoring system and its implementation |
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| CN102991283A CN102991283A (en) | 2013-03-27 |
| CN102991283B true CN102991283B (en) | 2016-03-30 |
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| CN201110276284.3A Active CN102991283B (en) | 2011-09-16 | 2011-09-16 | Tire pressure monitoring system and its implementation |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249610A (en) * | 2014-09-09 | 2014-12-31 | 南京泰晟科技实业有限公司 | Automatic addressing apparatus of tire-pressure monitoring sensor |
| GB2536496A (en) * | 2015-03-20 | 2016-09-21 | Airbus Operations Ltd | Method of checking the pressure of an aircraft tyre |
| CN104960393A (en) * | 2015-07-28 | 2015-10-07 | 安徽机电职业技术学院 | Tire pressure detection device |
| CN106842906A (en) * | 2015-12-07 | 2017-06-13 | 北京汽车股份有限公司 | The offline learning device of vehicle and learning method of tire pressure monitoring system |
| DE102018204681B4 (en) * | 2017-03-27 | 2019-07-11 | Infineon Technologies Ag | Digital sensor system |
| CN107225920A (en) * | 2017-06-02 | 2017-10-03 | 国动物联网技术（上海）有限公司 | A kind of LoRa radio tire pressures monitoring system and monitoring method |
| WO2019111330A1 (en) * | 2017-12-05 | 2019-06-13 | 太平洋工業 株式会社 | Transmitter and tire state monitoring device |
| CN111141444B (en) * | 2017-12-27 | 2021-11-16 | 深圳市道通合盛软件开发有限公司 | Tire pressure sensor information acquisition method and device, storage medium and electronic equipment |
| CN108418596B (en) * | 2018-02-25 | 2021-04-30 | 成都阳辰物联天下科技有限公司 | Information acquisition system and method based on wearable equipment |
| CN108790627A (en) * | 2018-06-04 | 2018-11-13 | 广东合微集成电路技术有限公司 | A kind of control method of intelligent tire |
| CN108790628B (en) * | 2018-06-04 | 2021-06-11 | 广东合微集成电路技术有限公司 | Intelligent automatic tire positioning system and setting method |
| CN111811839B (en) * | 2020-05-25 | 2022-06-28 | 南京英锐创电子科技有限公司 | Tire condition diagnosis method, sensor device, wake-up device, and storage medium |
| US11872853B2 (en) * | 2021-06-01 | 2024-01-16 | Infineon Technologies Ag | Selective activation of tire pressure monitoring system (TPMS) sensor modules for radio-frequency (RF) communication using directional RF beams |
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Inventor after: Huang Dongya Inventor after: Han Benzhong Inventor after: Liang Lujun Inventor after: Wang Shihai Inventor after: Gu Changfei Inventor before: Liang Lujun Inventor before: Han Benzhong Inventor before: Huang Dongya Inventor before: Wang Shihai Inventor before: Gu Changfei |
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