CN101722802A - System and method for monitoring tire pressure of automobile - Google Patents

System and method for monitoring tire pressure of automobile Download PDF

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Publication number
CN101722802A
CN101722802A CN201010022944A CN201010022944A CN101722802A CN 101722802 A CN101722802 A CN 101722802A CN 201010022944 A CN201010022944 A CN 201010022944A CN 201010022944 A CN201010022944 A CN 201010022944A CN 101722802 A CN101722802 A CN 101722802A
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CN
China
Prior art keywords
step
monitoring
module
microcontroller
system
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Application number
CN201010022944A
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Chinese (zh)
Inventor
杨金萍
Original Assignee
上海宸卓电子科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 上海宸卓电子科技有限公司 filed Critical 上海宸卓电子科技有限公司
Priority to CN201010022944A priority Critical patent/CN101722802A/en
Publication of CN101722802A publication Critical patent/CN101722802A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps, of tanks; Tyre cooling arrangements
    • B60C23/02Signalling devices actuated by tyre pressure
    • B60C23/04Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0433Radio signals
    • B60C23/0435Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender

Abstract

The invention provides a system and a method for monitoring tire pressure of an automobile. The monitoring system comprises a receive display module and a plurality of monitoring transmission modules, wherein the monitoring transmission modules are wirelessly connected with the receive display module; each monitoring transmission module comprises a sensing monitoring module and a radio frequency transmission circuit connected with the sensing monitoring module by a circuit; the sensing monitoring module comprises a micro controller, and a pressure sensor, an acceleration sensor, a temperature sensor and a voltage sensor which are connected with the micro controller by a circuit; and the receive display module comprises a micro controller, and a radio frequency receive circuit, a display module, a sound alarm module and a key input module which are connected with the micro controller by a circuit respectively. In the system for monitoring the tire pressure of the automobile, the sensing monitoring module can acquire the data of pressure, temperature, acceleration and voltage, so that the conditions of the automobile tires are comprehensively provided; because the unique sensor identification code function is used in the system, the false alarm is eliminated, and the effectiveness is improved; and the assembly of the equipment is easy, and the application range of the system is wide.

Description

Automobile tire pressure monitoring system and monitoring method

Technical field

The present invention relates to a kind of rf monitoring system and monitoring method thereof, be specifically related to a kind of automobile tire pressure monitoring system and monitoring method.

Background technology

At present, tire fault is the major reason that sudden traffic accident takes place, and proves by in-house test: it is generally acknowledged and improve tire internal gas pressure 25%, tire life will reduce by 15~20%; Reduce tire internal gas pressure 25%, tire life approximately reduces by 30%, and the tire pressure that maintains the standard travels and finds that in time tire gas leakage is to prevent the key of blowing out.Existing tire pressure monitoring system, a measuring pulley air pressure, and ignored the influence of temperature to tire, and make chaufeur not comprehensive to the understanding of tire situation, driving is caused certain hidden danger.

Summary of the invention

The invention provides a kind of automobile tire pressure monitoring system and monitoring method, can monitor the display of tyre pressure and temperature in real time, improper situation is in time reported to the police.

For achieving the above object, the invention provides a kind of automobile tire pressure monitoring system, it is characterized in that, this system comprises reception display module and a plurality of monitoring transmitter module, and a plurality of these monitoring transmitter modules and reception display module are by wireless connections;

Above-mentioned monitoring transmitter module comprises the sensor monitoring module, and with sensor monitoring modular circuit bonded assembly radio-frequency transmissions circuit; This sensor monitoring module comprises first microcontroller, and with the first microcontroller circuit bonded assembly pressure sensor, acceleration pick-up, temperature sensor, voltage sensor;

Above-mentioned reception display module comprises second microcontroller, and respectively with the second microcontroller circuit radio frequency receive circuit, display module, acoustic alarm module and keyboard input module.

The above-mentioned external tire tube valve of monitoring transmitter module, this monitoring transmitter module are installed in and substitute the tire tube valve position in the tire.

A kind of monitoring method that is used for automobile tire pressure monitoring system is characterized in that, comprises following steps:

Step 1 starts monitoring system;

Step 2 monitoring transmitter module detects tire condition, and will detect data and send to the reception display module;

Step 2.1 monitoring transmitter module electrification reset;

Each sensor of step 2.2 initialization and microcontroller;

Step 2.3 acceleration pick-up detects the tire acceleration/accel;

Step 2.4 first microcontroller judges whether the tire acceleration/accel reaches the startup value, if, then jump to step 2.5, if not, then jump to step 2.4.1;

Step 2.4.1 monitoring transmitter module enters sleep state, jumps to step 2.3;

Each sensor tire state of step 2.5;

Step 2.6 first microcontroller judges whether the tire acceleration/accel is zero, if, jump to step 2.4.1, if not, jump to step 2.7;

Step 2.7 first microcontroller judges whether the state variation amount of the detected tire pressure of pressure sensor, temperature sensor and voltage sensor, temperature, voltage reaches the default signal launching condition of first microcontroller, if, jump to step 2.8, if not, jump to step 2.5;

Step 2.8 radio-frequency transmissions circuit emission detection information jumps to step 2.5;

Step 3 receives display module and receives the data that the monitoring transmitter module sends, and shows and detects data, and data are handled, and the tire defective mode is reported to the police;

Step 3.1 receives the display module electrification reset;

Step 3.2 system initialization;

Step 3.3 second microcontroller judges whether system initialization is normal, if, jump to step 3.4, if not, jump to step 3.3.1;

The improper demonstration of step 3.3.1 display module;

The flicker of step 3.4 display module, the acoustic alarm module is rung;

Step 3.5 second microcontroller judges whether to receive the operation signal that keyboard input module sends, if, jump to step 3.5.1, if not, jump to step 3.6;

Step 3.5.1 second microcontroller is judged the operation signal that received keyboard input module sends, if the options button signal, system enters the tire station-keeping mode, jumps to step 3.6; If the mode key signal, system enters parameter and sets pattern, jumps to step 3.6;

Step 3.6 radio-frequency (RF) receiving circuit receives data, the second microcontroller processing data;

Step 3.7 display module shows detected data message;

Step 3.8 second microcontroller is judged the signal that received keyboard input module sends, if length is pressed the mode key signal, system enters mode of learning, jumps to step 3.6; If weak point is pressed the mode key signal, system enters energy-saving mode, jumps to step 3.6; If no signal, system is in normal displaying mode, jumps to step 3.6.

Automobile tire pressure monitoring system of the present invention and monitoring method are compared with existing monitoring system, its advantage is: the sensor monitoring module that the present invention adopts is except gathering gas pressure data, can also collecting temperature, voltage and acceleration information, the situation of motor tire is provided more comprehensively, improves travel safety;

The present invention adopts unique sensor heading code function, and the situation of stopping to report by mistake takes place, and has improved stability and effective;

Light, the simple installation of present device structure, the vehicle of applicable different kinds of tyre specification, applied widely.

Description of drawings

Fig. 1 is the overall structure scheme drawing of automobile tire pressure monitoring system of the present invention;

Fig. 2 is the circuit module scheme drawing of the monitoring transmitter module of automobile tire pressure monitoring system of the present invention;

Fig. 3 is the circuit module scheme drawing of the reception display module of automobile tire pressure monitoring system of the present invention;

Fig. 4 is the workflow diagram of the monitoring transmitter module of automobile tire pressure monitoring system of the present invention;

Fig. 5 is the workflow diagram of the reception display module of automobile tire pressure monitoring system of the present invention.

The specific embodiment

Below in conjunction with description of drawings the specific embodiment of the present invention.

See also shown in Figure 1ly, automobile tire pressure monitoring system of the present invention comprises four monitoring transmitter modules 1 and and receives 2, four monitorings of display module transmitter module 1 and receive display module 2 by wireless connections; And the number of monitoring transmitter module 1 can be expanded.

Monitoring transmitter module 1 as shown in Figure 2, it comprises and comprises sensor monitoring module 11, and with sensor monitoring module 11 circuit bonded assembly radio-frequency transmissions circuit 13; This sensor monitoring module 11 comprises first microcontroller 12, and with first microcontroller, 12 circuit bonded assembly pressure sensors 111, acceleration pick-up 112, temperature sensor 113, voltage sensor 114, antenna 15 is welded in the radio-frequency transmissions circuit 13.In the present invention, comprise first microcontroller 12 and pressure sensor 111, acceleration pick-up 112, temperature sensor 113, the sensor monitoring module 11 adopts pressure sensor SP30 chips of voltage sensor 114, this chip is integrated in pressure sensor 114 and acceleration pick-up 112 and temperature sensor 113 among the specific ASIC (special IC), also integrated simultaneously RISC (reduced instruction set computer) controller of 8 Harvard structures, be used for sensing data is carried out signal conditioning, according to specific communications protocol, adopt unique sensor heading code, signal is sent by external radio frequency transmission circuit 13; Adopt UHF projector TDK5100F radio frequency chip with sensor monitoring module 11 bonded assembly radio-frequency transmissions circuit 13, the antenna 15 of radio-frequency transmissions circuit 13, the signal of emission 433.92MHz frequency; Adopt the inferior battery of lithium of 3.6V to provide the galvanic current source in the native system to whole monitoring transmitter module 1, monitoring transmitter module 1 connects tire tube valve, this monitoring transmitter module 1 is installed in and substitutes the tire tube valve position in the tire, four wheels are respectively installed a monitoring transmitter module 1, and all with reception display module 2 wireless connections that are installed in the compartment, this reception display module 2 can connect a plurality of monitoring transmitter modules 1 simultaneously.

Receive display module 2 as shown in Figure 3, receive display module 2 and comprise second microcontroller 21, and with second microcontroller, 21 radio frequency receive circuit 22, display module 23, acoustic alarm module 24 and keyboard input module 25, radio-frequency (RF) receiving circuit 22 is welded with antenna 27.In native system, second microcontroller 21 has adopted micro controller system PIC16F917, and radio-frequency (RF) receiving circuit 22 adopts the TDA5210 chip, and is connected with second microcontroller 21, receives the radiofrequency signal of 433.92MHz by the antenna 27 of radio-frequency (RF) receiving circuit 22.Receive the monitoring data of monitoring transmitter module 1 by radio-frequency (RF) receiving circuit 22 and antenna 27 thereof, after second microcontroller, 21 parsing sensor heading codes, these data of integration processing, and by sending feedack with micro controller system bonded assembly display module 23 harmony alarm modules 24, display module 23 adopts the color LED read-out, acoustic alarm module 24 adopts buzzer phone sound to report to the police, the mode key of keyboard input module 25 and options button input operation instruction, can the system that receive display module 2 be controlled, the monitoring information of selecting mode of operation and checking, monitoring information can also be transferred to other vehicle-mounted display equipments by the output of UART interface.Receive display module 2 and adopt the vehicle power network that a 12V power supply is provided, via voltage regulator TLE4264G and the TLE4269G of 5V, for system provides power supply.

Mounting means of the present invention: the cigarette lighter plug that will receive on the display module 2 inserts in the Cigarette lighter; after choosing the position that is fit to driver's seat and regulating lower angle; the protection sheet of frame bottom gum is torn, cement in the position of choosing receiving display module 2.Earlier tire is pulled down car when monitoring transmitter module 1 is installed, bleed off gas, again the tire transmitter unit is replaced former tire tube valve, and carry out kinetic balance, assemble four wheels and cooresponding monitoring transmitter module 1 thereof successively.

The monitoring method of automobile tire pressure monitoring system of the present invention is described below in conjunction with Fig. 4 and Fig. 5:

Step 1 starts monitoring system;

Step 2 monitoring transmitter module 1 detects tire condition, and will detect data and send to reception display module 2;

Step 2.1 monitoring transmitter module 1 electrification reset;

System's control and initialization pressure sensor 111, acceleration pick-up 112, temperature sensor 113 and the voltage sensor 114 and first microcontroller 12 of step 2.2 monitoring transmitter module 1;

Step 2.3 first microcontroller 12 reads the value of acceleration pick-up 112;

Step 2.4 first microcontroller 12 judges whether the accekeration when front tyre reaches the startup value of vehicle, if, then jump to step 2.5, if not, then jump to step 2.4.1;

Step 2.4.1 monitoring transmitter module 1 enters sleep state, jumps to step 2.3;

Step 2.5 first microcontroller 12 reads the signal of the operation conditions of four tires that pressure sensor 111, temperature sensor 113 and voltage sensor 114 detect;

Step 2.6 first microcontroller 12 judges whether the acceleration/accel when front tyre is zero, if, jump to step 2.4.1, if not, jump to step 2.7;

Step 2.7 first microcontroller 12 judges whether the detected tire pressure of each sensor, temperature, voltage reach first microcontroller 12 sets in the radio-frequency transmissions circuit 13 tyre temperature variable quantity greater than 1 ℃, the tire pressure variable quantity is greater than 1%, and magnitude of voltage is less than the signal launching condition of 2.5V, if, jump to step 2.8, if not, jump to step 2.5;

After step 2.8 transmits, jump to step 2.5 automatically, the circulatory monitoring sensor signal;

Step 3 receives display module 2 and receives the data that monitoring transmitter module 1 sends, and shows and detects data, and data are handled, and the tire defective mode is reported to the police;

Step 3.1 receives to collect on the display module 2 and resets;

Step 3.2 receives the system initialization of display module 2;

Step 3.3 second microcontroller 21 judges whether the system initialization that receives display module 2 is normal, if, jump to step 3.4, if not, jump to step 3.3.1;

The 23 improper demonstrations of step 3.3.1 display module, system makes mistakes;

Step 3.4 display module 23 images show flicker, and acoustic alarm module 24 is rung three times;

Step 3.5 second microcontroller 21 judges whether system receives the operation signal that keyboard input module 25 sends, if, jump to step 3.5.1, if not, jump to step 3.6;

Step 3.5.1 second microcontroller 21 is judged the operation signal that received keyboard input module 25 sends, if the options button signal, system enters the tire station-keeping mode, if the mode key signal, system enters parameter and sets pattern, finishes to jump to step 3.6 after tire location or parameter are set;

Step 3.6 radio-frequency (RF) receiving circuit 22 receives the monitoring data that monitoring transmitter modules 1 are sent, and transfers to 21 pairs of these data of second microcontroller, 21, the second microcontrollers and handle and resolve;

Step 3.7 display module 23 shows the monitoring data of each received tire, comprises tire pressure with respect to percentum, tyre temperature numerical value, the battery electric quantity prompting of monitoring transmitter module 1, the monitoring of the standard tire force value indication that transmits; Tire location shows its parameter by " left front position ", " right front position ", " left back position ", " right back position " circulation successively;

Step 3.8 is in normal the demonstration, second microcontroller 21 is judged the operation signal that received keyboard input module 25 sends, if length is pressed the mode key signal, system enters mode of learning, assert the ID sign indicating number sign of respectively monitoring transmitter module 1 on four tires, jump to step 3.6 after finishing study; If weak point is pressed the mode key signal, system enters energy-saving mode, and display module 23 enters blank screen, saves electric weight and uses, and in energy-saving mode, if second microcontroller 21 has received any operation signal or alerting signal is arranged, then jumps to step 3.6; If there is not operation signal, then system is in normal displaying mode, and jump procedure 3.6 is done, and circulation receives, demonstration.

Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be conspicuous.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (5)

1. an automobile tire pressure monitoring system is characterized in that, this monitoring system comprises reception display module (2) and a plurality of monitoring transmitter module (1), and described a plurality of monitoring transmitter modules (1) and described reception display module (2) are by wireless connections;
Described monitoring transmitter module (1) comprises sensor monitoring module (11), and with sensor monitoring module (11) circuit bonded assembly radio-frequency transmissions circuit (13); Described sensor monitoring module (11) comprises first microcontroller (12), and with first microcontroller (12) circuit bonded assembly pressure sensor (111), acceleration pick-up (112), temperature sensor (113), voltage sensor (114);
Described reception display module (2) comprises second microcontroller (21), and respectively with second microcontroller (21) circuit radio frequency receive circuit (22), display module (23), acoustic alarm module (24) and keyboard input module (25).
2. automobile tire pressure monitoring system as claimed in claim 1 is characterized in that, the external tire tube valve of described monitoring transmitter module (1), this monitoring transmitter module (1) are installed in and substitute the tire tube valve position in the tire.
3. a monitoring method that is used for automobile tire pressure monitoring system is characterized in that, comprises following steps:
Step 1 starts monitoring system;
Step 2 monitoring transmitter module (1) detects tire condition, and will detect data and send to reception display module (2);
Step 3 receives display module (2) and receives the data that monitoring transmitter module (1) sends, and shows to detect data, and data are handled, and the tire defective mode is reported to the police.
4. as being used for the monitoring method of automobile tire pressure monitoring system as described in the claim 3, it is characterized in that described step 2 comprises following steps:
Step 2.1 monitoring transmitter module (1) electrification reset;
Each sensor of step 2.2 initialization and first microcontroller (12);
Step 2.3 acceleration pick-up (112) detects the tire acceleration/accel;
Step 2.4 first microcontroller (12) judges whether the tire acceleration/accel reaches the startup value, if, then jump to step 2.5, if not, then jump to step 2.4.1;
Step 2.4.1 monitoring transmitter module (1) enters sleep state, jumps to step 2.3;
Each sensor tire state of step 2.5;
Step 2.6 first microcontroller (12) judges whether the tire acceleration/accel is zero, if, jump to step 2.4.1, if not, jump to step 2.7;
Step 2.7 first microcontroller (12) judges whether the state variation amount of the detected tire pressure of pressure sensor (111), temperature sensor (113) and voltage sensor (114), temperature, voltage reaches the default signal launching condition of first microcontroller (12), if, jump to step 2.8, if not, jump to step 2.5;
Step 2.8 radio-frequency transmissions circuit (13) emission detection information jumps to step 2.5.
5. as being used for the monitoring method of automobile tire pressure monitoring system as described in the claim 3, it is characterized in that described step 3 comprises following steps:
Step 3.1 receives display module (2) electrification reset;
Step 3.2 system initialization;
Step 3.3 second microcontroller (21) judges whether system initialization is normal, if, jump to step 3.4, if not, jump to step 3.3.1;
The improper demonstration of step 3.3.1 display module (23);
Step 3.4 display module (23) flicker, acoustic alarm module (24) is rung;
Step 3.5 second microcontroller (21) judges whether to receive the operation signal that keyboard input module (25) sends, if, jump to step 3.5.1, if not, jump to step 3.6;
Step 3.5.1 second microcontroller (21) is judged the operation signal that received keyboard input module (25) sends, if the options button signal, system enters the tire station-keeping mode, jumps to step 3.6; If the mode key signal, system enters parameter and sets pattern, jumps to step 3.6;
Step 3.6 radio-frequency (RF) receiving circuit (22) receives data, second microcontroller (21) processing data;
Step 3.7 display module (23) shows detected data message;
Step 3.8 second microcontroller (21) is judged the signal that received keyboard input module (25) sends, if length is pressed the mode key signal, system enters mode of learning, jumps to step 3.6; If weak point is pressed the mode key signal, system enters energy-saving mode, jumps to step 3.6; If no signal, system is in normal displaying mode, jumps to step 3.6.
CN201010022944A 2010-01-19 2010-01-19 System and method for monitoring tire pressure of automobile CN101722802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010022944A CN101722802A (en) 2010-01-19 2010-01-19 System and method for monitoring tire pressure of automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010022944A CN101722802A (en) 2010-01-19 2010-01-19 System and method for monitoring tire pressure of automobile

Publications (1)

Publication Number Publication Date
CN101722802A true CN101722802A (en) 2010-06-09

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Application Number Title Priority Date Filing Date
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947905A (en) * 2010-08-09 2011-01-19 哈尔滨工程大学 Positioning transmit device and method of automobile tire temperature and pressure monitoring system
CN102745025A (en) * 2012-03-13 2012-10-24 浙江吉利汽车研究院有限公司 Vehicle tire monitoring apparatus and method thereof
CN102955468A (en) * 2011-08-26 2013-03-06 林良泽 Monitoring system and operating method thereof
WO2013127273A1 (en) * 2012-02-28 2013-09-06 杭州万通气门嘴有限公司 Method of setting sensor of motor vehicle tyre pressure monitoring system, sensor and setting device for sensor
CN103287226A (en) * 2012-02-28 2013-09-11 江阴中科今朝科技有限公司 Tire pressure monitoring system
CN104260601A (en) * 2014-09-19 2015-01-07 苏州经贸职业技术学院 Intelligent car tire pressure monitoring system
CN104999866A (en) * 2015-07-30 2015-10-28 秦秀常 Tire pressure monitoring system
CN105711352A (en) * 2015-08-20 2016-06-29 高福科技股份有限公司 Tyre monitoring device
CN107901711A (en) * 2017-08-17 2018-04-13 深圳市云图电装系统有限公司 Tire monitor method and tire monitor system
WO2018113471A1 (en) * 2016-12-23 2018-06-28 上海保隆汽车科技股份有限公司 Method and apparatus for locating tire position

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947905A (en) * 2010-08-09 2011-01-19 哈尔滨工程大学 Positioning transmit device and method of automobile tire temperature and pressure monitoring system
CN101947905B (en) * 2010-08-09 2012-09-05 哈尔滨工程大学 Positioning transmit device and method of automobile tire temperature and pressure monitoring system
CN102955468A (en) * 2011-08-26 2013-03-06 林良泽 Monitoring system and operating method thereof
CN102955468B (en) * 2011-08-26 2015-04-15 林良泽 Monitoring system and operating method thereof
WO2013127273A1 (en) * 2012-02-28 2013-09-06 杭州万通气门嘴有限公司 Method of setting sensor of motor vehicle tyre pressure monitoring system, sensor and setting device for sensor
CN103287226A (en) * 2012-02-28 2013-09-11 江阴中科今朝科技有限公司 Tire pressure monitoring system
CN102745025A (en) * 2012-03-13 2012-10-24 浙江吉利汽车研究院有限公司 Vehicle tire monitoring apparatus and method thereof
CN102745025B (en) * 2012-03-13 2014-09-10 浙江吉利汽车研究院有限公司 Vehicle tire monitoring apparatus and method thereof
CN104260601A (en) * 2014-09-19 2015-01-07 苏州经贸职业技术学院 Intelligent car tire pressure monitoring system
CN104999866A (en) * 2015-07-30 2015-10-28 秦秀常 Tire pressure monitoring system
CN105711352A (en) * 2015-08-20 2016-06-29 高福科技股份有限公司 Tyre monitoring device
WO2018113471A1 (en) * 2016-12-23 2018-06-28 上海保隆汽车科技股份有限公司 Method and apparatus for locating tire position
CN107901711A (en) * 2017-08-17 2018-04-13 深圳市云图电装系统有限公司 Tire monitor method and tire monitor system

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