CN102490555A - Close-range passive tire pressure monitor system and communication method - Google Patents
Close-range passive tire pressure monitor system and communication method Download PDFInfo
- Publication number
- CN102490555A CN102490555A CN2011103932409A CN201110393240A CN102490555A CN 102490555 A CN102490555 A CN 102490555A CN 2011103932409 A CN2011103932409 A CN 2011103932409A CN 201110393240 A CN201110393240 A CN 201110393240A CN 102490555 A CN102490555 A CN 102490555A
- Authority
- CN
- China
- Prior art keywords
- rfid
- tire
- tpms
- unit
- pressure
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a close-range passive tire pressure monitor system and a communication method. The close-range passive tire pressure monitor system comprises an electronic control unit, a tire pressure monitor system (TPMS) radio frequency identification device (RFID) unit installed in an automobile tire and an RFID reader arranged outside the automobile tire. The TPMS RFID unit is formed by an antenna coil, an RFID chip, a magnetic electricity converter, a microcontroller, a pressure sensor and a temperature sensor, wherein the pressure sensor and the temperature sensor are connected with the microcontroller which is connected with the magnetic electricity converter, and the magnetic electricity converter is connected with wireless radio frequency of the RFID reader through the RFID chi and the antenna coil. Compared with the prior art, the close-range passive tire pressure monitor system and the communication method use RFID radio frequency technology to convert magnetic energy into electricity to be supplied for the TPMS RFID unit to work, thereby achieving passivity of installing the TPMS RFID unit in the automobile tire, resolving the problem that an active direct tire pressure monitor system is limited in service life of batteries and prone to cause interference between automobiles, simultaneously resolving the problem that the number of automobile tires increases to improve complexity of the system and reduce reliability, and being strong in expandability in TPMS measurement technology on automobiles with the number of tires different.
Description
Technical field
The invention belongs to vehicle-state real time monitoring field, what be specifically related to is a kind of closely passive system for monitoring pressure in tyre and communication means.
Background technology
Motor tire is by rubber, framework material (metal or fiber); Compositions such as steel bead wire; Be responsible for supporting the quality of automobile and power is delivered to ground; Be the vitals of automobile traveling, so tyre performance to the automotive performance influence greatly, the parameter that influences tyre performance comprises tire material, structure and tire pressure etc.Wherein the height of automotive tire pressure directly influences load-carrying capacity, deceleration and stopping performance (safety), high speed performance and the traveling comfort of car load.
Motor tire by the inflation pressure size be divided into high pressure tyre (0.5-0.7MPa), low pressure tire (0.15-0.5MPa) and extra low pressure tire (＜0.15MPa).Suitable tire pressure helps reducing Abnormity abrasion about tyre, obtains good road holding, and automobile is when running at high speed, and the phenomenon of blowing out happens occasionally, and especially the anterior steering tire of car is blown out very big to the safety effects of vehicle.
In the process of running at high speed of automobile, tire fault is that the lethality maximum also is the most difficult accident potential that prevents, and is the major reason that sudden traffic accident takes place.For preventing to blow out; Need detect tire pressure; Therefore system for monitoring pressure in tyre (TPMS) is considered to automobile three big safety systems with safe automobile air bag, anti-skid brake system (ABS); TPMS is mainly used in vehicle traveling process tire pressure is carried out real-time automatic monitoring, and tire flat and infrabar are reported to the police, to guarantee traffic safety.
At present, system for monitoring pressure in tyre mainly is divided into two types:
A kind of is indirect type (Wheel-Speed Based TPMS, be called for short WSB), and this system is that the wheel speed sensors through automobile ABS system comes the rotating speed difference between the comparative tire, to reach the purpose of monitoring tire pressure.ABS confirms whether locking of wheel through wheel speed sensors, thereby whether decision starts antiblock device.When tire pressure reduced, the weight of vehicle can make diameter of tyres diminish, and this will cause the speed of a motor vehicle to change, and this variation promptly can be used for triggering warning system and comes to give a warning to the driver, belongs to passive-type afterwards.
Another kind is direct-type (Pressure-Sensor Based TPMS; Be called for short PSB), this system utilizes to be installed in the air pressure that each pressure sensor of taking turns tyre cavity comes direct drawings, utilizes wireless launcher that pressure information is sent to the system on the central receiver module from inside tires; Then each tire pressure data is shown; In too low or when gas leakage when tire pressure, system can auto alarm, belongs to initiatively defensive in advance.
Immediate system is installed a built-in sensors on the tire dice of tire, comprise in the sensor that the bridge type electron gas pressure sensitivity of induction air pressure should be installed, and it converts air pressure signal into electric signal; Through wireless launcher signal is emitted; Being implemented under driving or the static state, data such as the pressure of real time monitoring tire, temperature, and be transmitted into receptor through wireless mode; On telltale, show various data variation or with forms such as buzzings; Remind the motorist, and change at tire flat and pressure and to surpass safe thresholding (this threshold value can through the telltale setting) time and report to the police, with guarantee driving safety.Because immediate system can be measured the actual wink of each inside tires at any time and press, and is easy to confirm the fault tire, has the high characteristics of accuracy rate, therefore uses comparatively extensive.
Yet present immediate system mainly be active folk prescription to communication, the sensor that wherein is installed in the tire adopts the disposable battery power supply, its battery service life is generally about 6 years, and cost is higher; And have the probability of disturbing mutually between a plurality of projectors of active TPMS of while system, when causing vehicle operating easily, have the possibility that interferes with each other between each vehicle, and the signal transmitting range of existing active projector does not wait at 10-20 rice.
Summary of the invention
For this reason; The object of the present invention is to provide a kind of closely passive system for monitoring pressure in tyre and communication means; Limited service life to solve the existing battery of present active direct-type system for monitoring pressure in tyre, and cause existing between each vehicle the problem of disturbing easily.
For realizing above-mentioned purpose, the present invention mainly adopts following technical scheme:
A kind of closely passive system for monitoring pressure in tyre; Comprise electronic control unit, be installed in the TPMS RFID unit above the motor tire and be installed in the exterior rfid interrogator of motor tire, said TPMSRFID unit is made up of aerial coil, RFID chip, magnetoelastic transducer, microcontroller, pressure sensor and temperature sensor etc.; Said various sensor is connected with microcontroller, and said microcontroller is connected with magnetoelastic transducer, and magnetoelastic transducer is connected with the rfid interrogator less radio-frequency through RFID chip and aerial coil.
Wherein said electronic control unit also is connected with an alarm display unit.
Wherein be installed in the TPMS RFID unit above the tire and be installed in spacing between the exterior rfid interrogator of motor tire in 2 meters.
Wherein said electronic control unit is connected through automobile bus or wireless mode with rfid interrogator.
The present invention also provides a kind of communication means of closely passive monitoring tire pressure in addition, comprising step:
A, electronic control unit send control command to rfid interrogator, send the RF energy signal through rfid interrogator;
Aerial coil receives the RF energy signal that sends from rfid interrogator in B, the TPMS RFID unit, and activates the RFID chip;
C, RFID chip convert the RF energy of receiving to electric energy through magnetoelastic transducer and store;
D, microcontroller receive the radio frequency command from rfid interrogator through above-mentioned electric energy work, and the status information of each tire is fed back to rfid interrogator through RFID chip and aerial coil, and rfid interrogator sends to electronic control unit with these data.
Wherein also comprise after the step D:
Electronic control unit carries out analyzing and processing to the information data from each tire, and the alarm display unit through being attached thereto, and accomplishes alarm display.
The present invention is through installing TPMS RFID unit in motor tire; Through TPMS RFID element antenna coil received RF signal; And converting electric energy to for microcontroller work through the RFID chip, microcontroller receives real-time pressure and temperature data in the tire through the temperature and pressure sensor; And it is sent to rfid interrogator through RFID chip and aerial coil; Electronic control unit judges according to the data that rfid interrogator read, and sends to the alarm display unit, and the situation that tire is current is carried out alarm display.Compared with prior art; The present invention adopts the RFID radio-frequency technique; Convert magnetic energy to electric energy and supply the TPMSRFID cell operation, realized installing in the motor tire passiveization of TPMS RFID unit, solved the existing battery of present active direct-type system for monitoring pressure in tyre limited problem in service life; And the present invention need not have the LF arousal function of product-derived now, can save emitter cost about 5%; Especially closely the closely monitoring of adopting; Can effectively avoid having the problem of disturbing between each vehicle, owing to adopt native system ECU active mode, TPMS RFID unit can not need have the acceleration pick-up part of active mode now; Directly adopt the conventional truck bus to obtain speed of a motor vehicle mode; More accurate reliable, the TPMS monitoring method is more flexible, can further save cost.
Description of drawings
Fig. 1 is a system principle diagram of the present invention.
Fig. 2 is a principle of work diagram of circuit of the present invention.
The specific embodiment
For setting forth thought of the present invention and purpose, will combine accompanying drawing and specific embodiment that the present invention is done further explanation below.
See also shown in Figure 1ly, Fig. 1 is a system principle diagram of the present invention.The present invention is to provide a kind of closely passive system for monitoring pressure in tyre, be mainly used in that to solve the existing battery of present active direct-type system for monitoring pressure in tyre limited service life, and cause existing between each vehicle the problem of disturbing easily.
Wherein this system mainly includes alarm display unit, electronic control unit (ECU), is installed in the TPMS RFID unit in the motor tire and is installed in the exterior rfid interrogator of motor tire, and electronic control unit is connected through automobile bus respectively with alarm display unit, rfid interrogator.
TPMS RFID gets final product inside and outside being installed in tire; Be used for data such as drawings internal pressure, temperature; Rfid interrogator can be installed near the outside tires, can be controlled in about 1 meter with TPMS RFID communication distance, and the practical communication distance can be selected according to the vehicle tyre actual size.
TPMS RFID unit is by aerial coil, RFID chip, magnetoelastic transducer, microcontroller, pressure sensor; Formations such as temperature sensor; Said various sensor is connected with microcontroller; Said microcontroller is connected with magnetoelastic transducer, and magnetoelastic transducer is connected with the rfid interrogator less radio-frequency through RFID chip and aerial coil.
Principle of work of the present invention is: when need measuring through ECU to being installed in the rfid interrogator transmitting control commands of each outside tires, activate the TPMS RFID above the tire by rfid interrogator emission RF energy.
TPMS RFID aerial coil above the tire and RFID chip convert the RF energy of receiving to electric energy through magnetoelastic transducer and store, and provide follow-up work required electric energy for simultaneously the microcontroller among the TPMS RFID.After power supply is stable, start working, and receive the order that the rfid interrogator radio frequency sends successively.TPMS RFID is to command analysis with after handling; Continue power supply through radio frequency conversion energy stored; And through pressure sensor and temperature sensor each status information of tire is postbacked to rfid interrogator, rfid interrogator is passed to the ECU unit with data after receiving wireless signal; Finally by the various data of ECU cell processing, and accomplish functions such as alarm and demonstration.
More than be the explanation that monitoring system of the present invention is carried out, will combine 2 pairs of method of works of the present invention of accompanying drawing to do further explanation below.
As shown in Figure 2, Fig. 2 is a principle of work diagram of circuit of the present invention.The present invention also provides a kind of communication means of closely passive monitoring tire pressure, comprising step:
A, electronic control unit send control command to rfid interrogator, send the RF energy signal through rfid interrogator;
Aerial coil receives the RF energy signal that sends from rfid interrogator in B, the TPMS RFID unit, and activates the RFID chip;
C, RFID chip convert the RF energy of receiving to electric energy through magnetoelastic transducer and store;
D, microcontroller receive the radio frequency command from rfid interrogator through above-mentioned electric energy work, and the status information of each tire is fed back to rfid interrogator through RFID chip and aerial coil, and rfid interrogator sends to electronic control unit with these data.
Wherein also comprise after the step D:
Electronic control unit carries out analyzing and processing to the information data from each tire, and the alarm display unit through being attached thereto, and accomplishes alarm display.
Adopt system of the present invention to improve the safety that TPMS measures feedway, ECU is active closely to be read owing to adopt in the native system, can avoid the wireless signal of the tire of Ben Che and other vehicles to disturb fully; Improved the ease for use that TPMS measures feedway, need be to the pairing of each TPMS emission measurement device, can not make the driver initiatively understand the state of vehicle tyre whenever and wherever possible fast, when comprising static parking.
TPMS measurement technique extensibility for the vehicle of different kinds of tyre number is strong in addition; Because system's all mode of operations of each peripheral hardware are by the ECU ACTIVE CONTROL; And the short-range communication mode, therefore do not exist and consider that the tire number increases, need the transmitter module emissive power to increase; Cause system complexity to increase, wireless influence of disturbing the probability increase mutually between battery life reduction and system's tire.
Simultaneously native system also can reduce the cost of TPMS measuring system greatly, and the emitter battery cost of active TPMS system accounts for the 30%-40% of emitter total cost, and native system then need not battery; Native system prolongs the service life that TPMS measures feedway greatly, the emitter battery life of active TPMS system generally about 6 years, not reproducible utilization, native system does not then have the restriction in service life; Native system adopts vehicle-mounted direct current chargeable battery cycle power, helps the environmental protection and energy saving of automotive electronic industry greatly.
In addition, the present invention can not need have the LF arousal function of product-derived now, can save emitter cost about 5%; And closely the method for passive communication can directly be supported existing arousal function, satisfies functions such as motor tire maintainability test.
More than be that a kind of passive system for monitoring pressure in tyre provided by the present invention and communication means have been carried out detailed introduction; Used concrete example among this paper structural principle of the present invention and embodiment are set forth, above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on the specific embodiment and field of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. closely passive system for monitoring pressure in tyre; It is characterized in that comprising electronic control unit, be installed in the TPMS RFID unit in the motor tire and be installed in the exterior rfid interrogator of motor tire; Said TPMS RFID unit is made up of aerial coil, RFID chip, magnetoelastic transducer, microcontroller, pressure sensor and temperature sensor; Said pressure sensor is connected with microcontroller with temperature sensor; Said microcontroller is connected with magnetoelastic transducer, and magnetoelastic transducer is connected with the rfid interrogator less radio-frequency through RFID chip and aerial coil.
2. closely passive system for monitoring pressure in tyre according to claim 1 is characterized in that said electronic control unit also is connected with an alarm display unit.
3. closely passive system for monitoring pressure in tyre according to claim 1 is characterized in that being installed in the TPMS RFID unit above the tire and is installed in spacing between the exterior rfid interrogator of motor tire in 2 meters.
4. closely passive system for monitoring pressure in tyre according to claim 1 is characterized in that said electronic control unit is connected through automobile bus with rfid interrogator.
5. communication means of passive monitoring tire pressure closely is characterized in that comprising step:
A, electronic control unit send control command to rfid interrogator, send the RF energy signal through rfid interrogator;
Aerial coil receives the RF energy signal that sends from rfid interrogator in B, the TPMS RFID unit, and activates the RFID chip;
C, RFID chip convert the RF energy of receiving to electric energy through magnetoelastic transducer and store;
D, microcontroller receive the radio frequency command from rfid interrogator through above-mentioned electric energy work, and the status information of each tire is fed back to rfid interrogator through RFID chip and aerial coil, and rfid interrogator sends to electronic control unit with these data.
6. the communication means of closely passive monitoring tire pressure according to claim 5 is characterized in that also comprising after the step D:
Electronic control unit carries out analyzing and processing to the information data from each tire, and the alarm display unit through being attached thereto, and accomplishes alarm display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103932409A CN102490555A (en) | 2011-11-30 | 2011-11-30 | Close-range passive tire pressure monitor system and communication method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103932409A CN102490555A (en) | 2011-11-30 | 2011-11-30 | Close-range passive tire pressure monitor system and communication method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102490555A true CN102490555A (en) | 2012-06-13 |
Family
ID=46182432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103932409A Pending CN102490555A (en) | 2011-11-30 | 2011-11-30 | Close-range passive tire pressure monitor system and communication method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102490555A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105787618A (en) * | 2014-12-24 | 2016-07-20 | 软控股份有限公司 | Vehicle tyre management method and device for internet of vehicles |
| WO2017020840A1 (en) * | 2015-08-04 | 2017-02-09 | Xue Ji | Methods and systems for tire management |
| CN108016220A (en) * | 2016-11-02 | 2018-05-11 | 现代自动车株式会社 | System for monitoring pressure in tyre and its operating method and large data center |
| CN108058548A (en) * | 2018-01-18 | 2018-05-22 | 深圳市奥比自动控制有限公司 | A kind of passive tire monitoring system |
| CN107379899B (en) * | 2017-07-07 | 2018-06-29 | 淮阴工学院 | A kind of tire condition intelligent monitor system based on wireless sensor network |
| CN108556569A (en) * | 2018-04-09 | 2018-09-21 | 黄果树轮胎有限公司 | A kind of intelligent tire |
| CN109218373A (en) * | 2017-07-07 | 2019-01-15 | 杭州中策车空间汽车服务有限公司 | The information processing method and system of tire networking |
| CN111251792A (en) * | 2020-02-26 | 2020-06-09 | 东风电子科技股份有限公司 | Method for realizing tire fault control processing applied to tire pressure alarm control system |
| CN111566871A (en) * | 2017-10-27 | 2020-08-21 | 米其林集团总公司 | Parameter measuring system for mounting assembly |
| CN114189561A (en) * | 2020-09-14 | 2022-03-15 | 锦湖轮胎有限公司 | Tire sensor configuration device and intelligent tire system comprising same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041318A (en) * | 2006-03-20 | 2007-09-26 | 宋海涛 | Passive built-in type tyre pressure observation system |
| CN101386251A (en) * | 2008-10-30 | 2009-03-18 | 桂林电子科技大学 | Passive vehicle tyre pressure monitoring system and use method thereof |
| CN101604405A (en) * | 2008-05-26 | 2009-12-16 | 北京中食新华科技有限公司 | The passive RFID that uses in a kind of logistics |
| CN202480794U (en) * | 2011-11-30 | 2012-10-10 | 深圳市元征软件开发有限公司 | Short-distance passive tire pressure monitoring system |
-
2011
- 2011-11-30 CN CN2011103932409A patent/CN102490555A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041318A (en) * | 2006-03-20 | 2007-09-26 | 宋海涛 | Passive built-in type tyre pressure observation system |
| CN101604405A (en) * | 2008-05-26 | 2009-12-16 | 北京中食新华科技有限公司 | The passive RFID that uses in a kind of logistics |
| CN101386251A (en) * | 2008-10-30 | 2009-03-18 | 桂林电子科技大学 | Passive vehicle tyre pressure monitoring system and use method thereof |
| CN202480794U (en) * | 2011-11-30 | 2012-10-10 | 深圳市元征软件开发有限公司 | Short-distance passive tire pressure monitoring system |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105787618A (en) * | 2014-12-24 | 2016-07-20 | 软控股份有限公司 | Vehicle tyre management method and device for internet of vehicles |
| WO2017020840A1 (en) * | 2015-08-04 | 2017-02-09 | Xue Ji | Methods and systems for tire management |
| CN108016220A (en) * | 2016-11-02 | 2018-05-11 | 现代自动车株式会社 | System for monitoring pressure in tyre and its operating method and large data center |
| CN108016220B (en) * | 2016-11-02 | 2021-01-19 | 现代自动车株式会社 | Tire pressure monitoring system, method of operating the same, and big data center |
| CN109218373A (en) * | 2017-07-07 | 2019-01-15 | 杭州中策车空间汽车服务有限公司 | The information processing method and system of tire networking |
| CN107379899B (en) * | 2017-07-07 | 2018-06-29 | 淮阴工学院 | A kind of tire condition intelligent monitor system based on wireless sensor network |
| CN109218373B (en) * | 2017-07-07 | 2021-07-16 | 杭州中策车空间汽车服务有限公司 | Information processing method and system for tire networking |
| CN111566871A (en) * | 2017-10-27 | 2020-08-21 | 米其林集团总公司 | Parameter measuring system for mounting assembly |
| CN108058548A (en) * | 2018-01-18 | 2018-05-22 | 深圳市奥比自动控制有限公司 | A kind of passive tire monitoring system |
| CN108556569A (en) * | 2018-04-09 | 2018-09-21 | 黄果树轮胎有限公司 | A kind of intelligent tire |
| CN111251792A (en) * | 2020-02-26 | 2020-06-09 | 东风电子科技股份有限公司 | Method for realizing tire fault control processing applied to tire pressure alarm control system |
| CN114189561A (en) * | 2020-09-14 | 2022-03-15 | 锦湖轮胎有限公司 | Tire sensor configuration device and intelligent tire system comprising same |
| CN114189561B (en) * | 2020-09-14 | 2024-03-08 | 锦湖轮胎有限公司 | Tire sensor configuration apparatus and intelligent tire system including the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102490555A (en) | Close-range passive tire pressure monitor system and communication method | |
| US7990257B2 (en) | Tire localization system | |
| US8897957B2 (en) | Control and monitoring device of a vehicle having a tire-monitoring control unit and a brake control unit integrated in a subassembly | |
| CN101391563B (en) | Tire inflation pressure detecting apparatus | |
| CN101985268B (en) | Wireless monitor system for automobile tire pressure and temperature | |
| US10935466B2 (en) | Integrated tire sensor and reader system | |
| CN202480794U (en) | Short-distance passive tire pressure monitoring system | |
| JP6942753B2 (en) | Tire pressure monitoring system and tire pressure detector setting tool | |
| CN103112321A (en) | Tire monitoring system based on radio frequency identification technology | |
| JP3234300U (en) | Bluetooth tire pressure detection assist system | |
| CN102015335B (en) | Method, system, and system components for the wireless monitoring of a tire pressure | |
| JP2014097745A (en) | Tire condition monitoring system | |
| CN107310336A (en) | A kind of vehicle tire pressure remote supervision system | |
| CN103950355B (en) | A kind of parking lot tire pressure monitoring system | |
| JP2010266314A (en) | Tire-monitoring system | |
| CN101746231A (en) | Vehicle tire state monitoring system | |
| CN106143002A (en) | A kind of vehicle load detecting system and method | |
| CN203198637U (en) | Tire monitoring system based on radio frequency identification technology | |
| CN107428214A (en) | Pneumatic pressure monitoring system of tire and in-vehicle wireless device | |
| CN202491645U (en) | ABS(anti-lock brake system)-based tire pressure monitoring system | |
| CN105599549B (en) | A kind of system and method that front and rear can be independently arranged tire pressure | |
| CN202826997U (en) | Automobile tire pressure monitoring system | |
| JP2014019361A (en) | Integrated receiver | |
| CN210257876U (en) | Tire pressure detector setting device and tire pressure monitoring system connected with vehicle | |
| US20110298606A1 (en) | Tire pressure monitoring system having a test function for the sensor module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120613 |