CN102991283A - Tire pressure monitoring system of automobile and implementation method thereof - Google Patents
Tire pressure monitoring system of automobile and implementation method thereof Download PDFInfo
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- CN102991283A CN102991283A CN2011102762843A CN201110276284A CN102991283A CN 102991283 A CN102991283 A CN 102991283A CN 2011102762843 A CN2011102762843 A CN 2011102762843A CN 201110276284 A CN201110276284 A CN 201110276284A CN 102991283 A CN102991283 A CN 102991283A
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Abstract
The invention discloses a tire pressure monitoring system of an automobile. The tire pressure monitoring system comprises multiple tire pressure sensors which are respectively arranged in each automobile tire; each tire pressure sensor comprises a receiving and awakening module, a sensor chip and a high frequency antenna; the receiving and awakening module responds to awakening signals sent out by a tire pressure monitoring system host machine; the sensor chip is used for monitoring the pressure in the automobile tire; and the high frequency antenna is used for receiving and transmitting signals. The tire pressure monitoring system also comprises the tire pressure monitoring system host machine which comprises a system host machine module and the high frequency antenna; the system host machine module is used for transmitting the awakening signals to the tire pressure sensor, receiving pressure data from each tire pressure sensor and judging whether each tire pressure is in the normal range and whether alarm signals are sent out; and the high frequency antenna is used for receiving and transmitting signals. The tire pressure monitoring system is simple and convenient to install and simultaneously economic cost is lowered. The invention also discloses an implementation method of the tire pressure monitoring system; and according to the implementation method, a bidirectional ID (Identification) confirmation communication manner is adopted so that potential safety hazard is reduced.
Description
Technical field
The present invention relates to technical field of automotive electronics, particularly relate to tire pressure monitoring system.
Background technology
The tire pressure monitoring system of most comprises:
---a plurality of tire pressure sensors lay respectively among each motor tire; Each tire pressure sensor is integrated with a low frequency receiving wire and a high-frequency emission antenna;
---a plurality of low frequency trigger modules lay respectively at outside each motor tire;
---Receiving Host for example is the ECU (electronic control unit) of automobile, is connected with a plurality of low frequency trigger modules by many wire harness.Described Receiving Host also is integrated with a high frequency receiving antenna.
The implementation method of described tire pressure monitoring system is such: be provided with a wire harness and be connected to the low frequency trigger module outside each motor tire, be used for sending the low frequency energizing signal.These wire harness are connected to Receiving Host, are being controlled the transmission of low frequency signal by Receiving Host.After each tire pressure sensor receives the low frequency energizing signal, the tire pressure of its detection is sent out by the high-frequency emission antenna.Receiving Host obtains the tire pressure data that each tire pressure sensor detects by high frequency receiving antenna, in case find that the safe range of exceeding is arranged, then sends alerting signal.
What above-mentioned tire pressure monitoring system adopted is the tire pressure sensor with low frequency receiving wire, because low frequency signal is (below the 300KHz, for example be 125KHz) transmission distance very short, therefore must outside each motor tire, lay a wire harness and connect the low frequency trigger module.And layout, many wire harness of installation and a plurality of low frequency trigger module are cumbersome in automobile.
What the implementation method of above-mentioned tire pressure monitoring system adopted is the one-way communication mode, the one-way communication between namely from the Receiving Host to the tire pressure sensor.So just, so that the real-time of communication is not strong, and communication signal do not fail to report alert or flase alarm through confirming, might causing, and has certain potential safety hazard.
Summary of the invention
Technical matters to be solved by this invention provides a kind of tire pressure monitoring system, and this system need to be at the vehicle body installation wiring, thereby simple installation.For this reason, the present invention also provides the implementation method of described tire pressure monitoring system, and the method has improved the real-time of communication, has increased the reliability of communication, can avoid failing to report alert or the flase alarm generation.
For solving the problems of the technologies described above, tire pressure monitoring system of the present invention comprises:
---a plurality of tire pressure sensors are installed in respectively in each motor tire; Each tire pressure sensor comprises reception wake module, sensor chip and high frequency antenna; The wake-up signal that described reception wake module response tire pressure monitoring system main frame sends; Pressure in the described sensor chip monitoring motor tire; Described high frequency antenna is used for receiving and transmitted signal;
---the 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 from each tire pressure sensor, judges that whether each tire pressure is in normal range, judges whether to send alerting signal; Described high frequency antenna is used for receiving and transmitted signal.
The implementation method of described tire pressure monitoring system comprises the steps:
In the 1st step, each tire pressure sensor arranges a sensor ID, and the tire pressure monitoring system host stores on automobile has the sensor ID of all tire pressure sensor of installing on this automobile;
Each tire pressure monitoring system main frame arranges a host id, and all tire pressure sensor on automobile all stores the host id of the tire pressure monitoring system main frame on this automobile;
In the 2nd step, the system host module of tire pressure monitoring system main frame is sent wake-up signal by high frequency antenna, include the host id of this tire pressure monitoring system main frame in the described wake-up signal;
In the 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 sends by high frequency antenna together with the sensor ID of this tire pressure sensor;
If otherwise ignore this wake-up signal;
In the 4th step, the system host module of tire pressure monitoring system main frame receives the pressure data that tire pressure sensor sends 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;
In the 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 continue monitoring;
If otherwise send alerting signal.
Tire pressure monitoring system of the present invention all is provided with high frequency antenna in tire pressure sensor and tire pressure monitoring system main frame, high-frequency signal is (more than the 3MHz, such as being 315MHz, 434MHz etc.) transmission distance far away, thereby the wire harness that receives low frequency signal need to be installed in vehicle body again, thereby so that installation is more easy, reduced simultaneously financial cost.
The communication modes that the implementation method of tire pressure monitoring system of the present invention adopts two-way ID to confirm has guaranteed the safe, effective of intercommunication, thereby has reduced potential safety hazard.
Description of drawings
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 among the figure:
10 is tire pressure sensor; 11 for receiving wake module; 12 is sensor chip; 13 is high frequency antenna; 20 is the tire pressure monitoring system main frame; 21 is the system host module; 22 is high frequency antenna.
The specific embodiment
See also Fig. 1, tire pressure monitoring system of the present invention comprises:
---a plurality of tire pressure sensors 10 are installed in respectively in each motor tire.Each tire pressure sensor 10 comprises reception wake module 11, sensor chip 12 and high frequency antenna 13.Wherein, receive the wake-up signal that wake module 11 response tire pressure monitoring system main frames 20 send; Pressure in the sensor chip 12 measured automobiles tires; High frequency antenna 13 is used for receiving and transmitted 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 that whether each tire pressure is in normal range, judges whether to send alerting signal; High frequency antenna 22 is used for receiving and transmitted signal.System host module 21 for example is the ECU of automobile.
Described sensor chip 12 comprises pressure sensor chip at least, is used for detecting the pressure in the motor tire; Also comprise alternatively temperature sensor chip, acceleration sensor chip etc., be used for respectively detecting the temperature in the motor tire, the acceleration/accel of motor tire.
In the tire pressure monitoring system of the present invention, in tire pressure sensor 10 1 sides and tire pressure monitoring system main frame 20 1 sides a high frequency antenna 13 and high frequency antenna 22 are arranged respectively, the communication of two side datas is all with the high-frequency signal sending and receiving thus, thereby significantly enlarged communication distance, also just need not the reception wire harness of low frequency signal has been set outside each motor tire.
See also Fig. 2, the implementation method of tire pressure monitoring system of the present invention comprises the steps:
In the 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 automobile stores the sensor ID of all tire pressure sensor 10 on this automobile.The sensor ID of the tire pressure sensor 10 on the different automobiles can not repeat yet.
Each tire pressure monitoring system main frame 20 arranges a mutual unduplicated host id, and all tire pressure sensor 10 on 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 the different automobiles can not repeat yet.
In the 2nd step, the system host module 21 in the tire pressure monitoring system main frame 20 is sent wake-up signal by high frequency antenna 22, include the host id of this tire pressure monitoring system main frame 20 in the described wake-up signal.
In the 3rd step, the reception wake module 11 in the tire pressure sensor 10 receives described wake-up signal by high frequency antenna 13, and the host id that the checks described wake-up signal host id of the tire pressure monitoring system main frame 20 on this automobile whether.
If so, then receive wake module 11 and wake sensor chip 12 up, even sensor chip 12 is in running order.Sensor chip 12 is waken up the pressure data in the rear detection motor tire, and sends 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.
In the 4th step, the system host module 21 in the tire pressure monitoring system main frame 20 receives the pressure data that tire pressure sensors send by high frequency antenna 22, and checks the sensor ID sensor ID of the tire pressure sensor 10 on this automobile whether wherein.
If so, then system host module 21 stores described pressure data.
If not, then system host module 21 is abandoned described pressure data.
In the 5th step, the system host module 21 in the tire pressure monitoring system main frame 20 checks that pressure data that the tire pressure sensor 10 of each motor tires sends it back is whether within normal range.
If within normal range, then system host module 21 continues monitoring.
If exceed normal range, then system host module 21 is sent alerting signal.The form of alerting signal comprises: the demonstration screen display in vehicle, the signal of sounding, ring loudspeaker, light flash etc.
Further, described method is in the 3rd step, sensor chip 12 through one section time delays at random after, the pressure data that will include again sensor ID and host id sends by high frequency antenna 13.Described one section time delays at random for example can realize by random number functions that the purpose of time-delay is to avoid a plurality of tire pressure sensors 10 to send simultaneously pressure data like this, causes the interference between high-frequency signal.
Further, described method is in the 3rd step, and described pressure data also comprises temperature and/or acceleration information.Described method is in the 5th step, and system host module 21 checks that also temperature that the tire pressure sensor 10 of each motor tire sends it back and/or acceleration information are whether within normal range.
The implementation method of tire pressure monitoring system of the present invention adopts the 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.
Be the preferred embodiments of the present invention only below, 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 modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a tire pressure monitoring system is characterized in that, comprising:
---a plurality of tire pressure sensors are installed in respectively in each motor tire; 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 the described sensor chip monitoring motor tire; Described high frequency antenna is used for receiving and transmitted signal;
---the 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 from each tire pressure sensor, judges that whether each tire pressure is in normal range, judges whether to send alerting signal; Described high frequency antenna is used for receiving and transmitted signal.
2. tire pressure monitoring system according to claim 1 is characterized in that, described sensor chip comprises pressure sensor chip, temperature sensor chip and/or acceleration sensor chip.
3. the implementation method of tire pressure monitoring system as claimed in claim 1 is characterized in that, comprises the steps:
In the 1st step, each tire pressure sensor arranges a sensor ID, and the tire pressure monitoring system host stores on automobile has the sensor ID of all tire pressure sensor of installing on this automobile;
Each tire pressure monitoring system main frame arranges a host id, and all tire pressure sensor on automobile all stores the host id of the tire pressure monitoring system main frame on this automobile;
In the 2nd step, the system host module of tire pressure monitoring system main frame is sent wake-up signal by high frequency antenna, include the host id of this tire pressure monitoring system main frame in the described wake-up signal;
In the 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 sends by high frequency antenna together with the sensor ID of this tire pressure sensor;
If otherwise ignore this wake-up signal;
In the 4th step, the system host module of tire pressure monitoring system main frame receives the pressure data that tire pressure sensor sends 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;
In the 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 continue monitoring;
If otherwise send alerting signal.
4. the implementation method of tire pressure monitoring system according to claim 3 is characterized in that, described method is in the 3rd step, sensor chip through one section time delays at random after, again pressure data is sent by high frequency antenna; Described pressure data comprises the sensor ID of this tire pressure sensor.
5. the implementation method of tire pressure monitoring system according to claim 3 is characterized in that, described method is in the 3rd step, and sensor chip sends pressure data by high frequency antenna; Described pressure data comprises the sensor ID of this tire pressure sensor, also comprises the temperature in the motor tire, the acceleration/accel of motor tire;
Described method is in the 5th step, and the system host module checks that also the temperature of each motor tire and acceleration/accel are whether within normal range; If it is continue monitoring; If otherwise send alerting signal.
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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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| CN201110276284.3A CN102991283B (en) | 2011-09-16 | 2011-09-16 | Tire pressure monitoring system and its implementation |
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| CN102991283A true CN102991283A (en) | 2013-03-27 |
| CN102991283B CN102991283B (en) | 2016-03-30 |
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Cited By (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 |
| 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 |
| 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 |
| CN108225659A (en) * | 2017-12-27 | 2018-06-29 | 深圳市道通科技股份有限公司 | Tyre pressure sensor information acquisition method, device, storage medium and electronic equipment |
| CN108418596A (en) * | 2018-02-25 | 2018-08-17 | 成都阳辰物联天下科技有限公司 | Information Acquisition System based on wearable device and method |
| CN108663070A (en) * | 2017-03-27 | 2018-10-16 | 英飞凌科技股份有限公司 | Digital sensor system |
| 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 |
| CN108790628A (en) * | 2018-06-04 | 2018-11-13 | 广东合微集成电路技术有限公司 | A kind of intelligent tire automatic station-keeping system and setting method |
| CN110121435A (en) * | 2017-12-05 | 2019-08-13 | 太平洋工业株式会社 | Transmitter and tire condition monitoring device |
| CN111497532A (en) * | 2015-03-20 | 2020-08-07 | 空中客车营运有限公司 | Method for checking the air pressure of an aircraft tyre, hand-held device, and landing gear system |
| CN111811839A (en) * | 2020-05-25 | 2020-10-23 | 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 |
| CN115431680A (en) * | 2021-06-01 | 2022-12-06 | 英飞凌科技股份有限公司 | Selective activation of TPMS sensor modules for RF communication |
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Cited By (17)
| 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 |
| CN111497532A (en) * | 2015-03-20 | 2020-08-07 | 空中客车营运有限公司 | Method for checking the air pressure of an aircraft tyre, hand-held device, and landing gear system |
| 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 |
| CN108663070A (en) * | 2017-03-27 | 2018-10-16 | 英飞凌科技股份有限公司 | 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 |
| CN110121435B (en) * | 2017-12-05 | 2020-12-29 | 太平洋工业株式会社 | Transmitter and tire condition monitoring device |
| CN110121435A (en) * | 2017-12-05 | 2019-08-13 | 太平洋工业株式会社 | Transmitter and tire condition monitoring device |
| CN108225659A (en) * | 2017-12-27 | 2018-06-29 | 深圳市道通科技股份有限公司 | Tyre pressure sensor information acquisition method, device, storage medium and electronic equipment |
| CN108225659B (en) * | 2017-12-27 | 2020-03-24 | 深圳市道通科技股份有限公司 | Tire pressure sensor information acquisition method and device, storage medium and electronic equipment |
| CN108418596A (en) * | 2018-02-25 | 2018-08-17 | 成都阳辰物联天下科技有限公司 | Information Acquisition System based on wearable device and method |
| 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 |
| CN108790628A (en) * | 2018-06-04 | 2018-11-13 | 广东合微集成电路技术有限公司 | A kind of intelligent tire automatic station-keeping system and setting method |
| 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 |
| CN111811839A (en) * | 2020-05-25 | 2020-10-23 | 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 |
| CN115431680A (en) * | 2021-06-01 | 2022-12-06 | 英飞凌科技股份有限公司 | Selective activation of TPMS sensor modules for RF communication |
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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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