CN105252970A - Piezoelectric tire pressure wheel speed monitoring system and detection method - Google Patents
Piezoelectric tire pressure wheel speed monitoring system and detection method Download PDFInfo
- Publication number
- CN105252970A CN105252970A CN201510629440.8A CN201510629440A CN105252970A CN 105252970 A CN105252970 A CN 105252970A CN 201510629440 A CN201510629440 A CN 201510629440A CN 105252970 A CN105252970 A CN 105252970A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric
- tire
- average
- wheel speed
- piezoelectricity
- 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.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to a piezoelectric tire pressure wheel speed monitoring system and a detection method, the piezoelectric tire pressure wheel speed monitoring system comprises: the tire piezoelectric detection assembly is connected with the signal transmitting device; the signal transmitting device is suitable for transmitting the piezoelectric signal to an upper computer; the upper computer is suitable for obtaining tire testing parameters according to the piezoelectric signals; the tire piezoelectric detection component in the piezoelectric tire pressure wheel speed monitoring system can independently generate electricity, and simultaneously analyzes the change condition of the wheel speed and the tire pressure according to the fluctuation of the generated current, so the piezoelectric tire pressure wheel speed monitoring system is simple and good, is suitable for modeling tire test data, improves the tire test efficiency, can effectively obtain the tire pressure and the wheel speed data, plays an important reference role in judging the quality of the tire, and is an independent and powerful automobile active safety technology.
Description
Technical field
The present invention relates to a kind of tire pressure wheel speed to detect, especially a kind of automobile wheel speed based on piezoelectric and system for detecting tire pressure and method of inspection.
Background technology
Along with the development of science and technology, the more and more advanced monitoring equipment of car equipment improves traveling comfort and the safety of chaufeur.The change of tire pressure has significant impact to vehicle safety travel, it is an important active safety technologies, TPMS (tire pressure monitoring system) is dealt into country America and Europe etc. and has put into effect many mandatory rules of laws, and the TPMS on market all adopts independently powered battery, and the environment for use of tire is more severe, its life-span is impacted, the change of wheel speed cannot be monitored simultaneously.
Summary of the invention
The object of this invention is to provide a kind of piezoelectricity tire pressure wheel speed monitoring system and method for inspection, with the feature by tire piezoelectric detection assembly Independent Power Generation, achieve tire pressure and wheel speed Data Detection.
In order to solve the problems of the technologies described above, the invention provides a kind of piezoelectricity tire pressure wheel speed monitoring system, comprising: tire piezoelectric detection assembly, and the sender unit be connected with this tire piezo-electric generating assembly;
Described sender unit is suitable for piezoelectric signal to be sent to upper computer;
Described upper computer is suitable for obtaining Tire testing parameter according to piezoelectric signal.
Further, described tire piezoelectric detection assembly comprises: several are closely pasted on the U-shaped piezoelectric patches of cover tire inwall, and each U-shaped piezoelectric patches is around core wheel, is uniformly distributed in circumference;
Described sender unit is connected with each U-shaped piezoelectric patches, to obtain the average piezoelectricity current signal of each U-shaped piezoelectric patches, and average piezoelectricity current signal is sent to upper computer.
Further, the input end of described sender unit is connected with a tank circuit, described tank circuit is suitable for the output piezoelectric current storing each U-shaped piezoelectric patches, and sender unit to be suitable for detecting in tank circuit capacitance voltage to obtain the average piezoelectricity current signal of each U-shaped piezoelectric patches.
Further, described piezoelectric signal is average piezoelectricity current signal, and average piezoelectricity current signal is sinusoidal function distribution;
Described upper computer is suitable for obtaining Tire testing parameter according to piezoelectric signal, namely
Set up tyre characteristic data storehouse, get each tire pressure value, draw the amplitude of average piezoelectric current and the characteristic curve of tire pressure, namely the amplitude of average piezoelectric current and tire pressure are reverse proportionate relationship; Get each wheel speed value, draw the amplitude of average piezoelectric current and the characteristic curve of wheel speed, namely the change frequency of average piezoelectric current and wheel speed are forward proportionate relationship;
When surveying, described upper computer judges tire pressure according to tyre characteristic data storehouse by the amplitude of average piezoelectric current, and judges wheel speed by the change frequency of average piezoelectric current.
Further, average piezoelectricity current signal modulation becomes wireless signal to be sent to upper computer by wireless communication mode by described sender unit;
Reception of wireless signals processing module is provided with in described upper computer;
Described reception of wireless signals processing module is suitable for the wireless signal of reception to be demodulated to average piezoelectricity current signal.
Another aspect, present invention also offers a kind of piezoelectricity tire pressure wheel speed monitoring method, comprises the steps:
Step S1, obtains the piezoelectric signal of tire by tire piezoelectric detection assembly;
Step S2, obtains Tire testing parameter according to piezoelectric signal.
Further, described tire piezoelectric detection assembly comprises: several are closely pasted on the U-shaped piezoelectric patches of cover tire inwall, and each U-shaped piezoelectric patches is around core wheel, is uniformly distributed in circumference;
The method being obtained the piezoelectric signal of tire in described step S1 by tire piezoelectric detection assembly is comprised:
Be connected with each U-shaped piezoelectric patches by sender unit, to obtain the average piezoelectricity current signal of each U-shaped piezoelectric patches, and average piezoelectricity current signal be sent to upper computer.
Further, in described step S2, obtain Tire testing parameter according to piezoelectric signal, namely obtain Tire testing parameter by upper computer according to piezoelectric signal; Wherein
Described piezoelectric signal is average piezoelectricity current signal, and average piezoelectricity current signal is sinusoidal function distribution;
The described method obtaining Tire testing parameter according to piezoelectric signal by upper computer comprises:
Set up tyre characteristic data storehouse, when surveying, described upper computer judges tire pressure according to tyre characteristic data storehouse by the amplitude of average piezoelectric current, and judges wheel speed by the change frequency of average piezoelectric current.
Further, the method setting up tyre characteristic data storehouse comprises:
Get each tire pressure value, draw the amplitude of average piezoelectric current and the characteristic curve of tire pressure, namely the amplitude of average piezoelectric current and tire pressure are reverse proportionate relationship;
Get each wheel speed value, draw the amplitude of average piezoelectric current and the characteristic curve of wheel speed, namely the change frequency of average piezoelectric current and wheel speed are forward proportionate relationship;
And set up tire data storehouse according to above-mentioned characteristic curve.
The invention has the beneficial effects as follows, tire piezoelectric detection assembly in piezoelectricity tire pressure wheel speed monitoring system of the present invention can Independent Power Generation, simultaneously according to the situation of change of generation current fluction analysis wheel speed tire pressure, simply fine, be applicable to Tire testing data modeling, improve Tire testing efficiency, tire pressure and wheel speed data can be obtained by actv., to judging that tire quality serves important reference role, it is a kind of independent and powerful automobile active safety technology.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the functional block diagram of piezoelectricity tire pressure wheel speed monitoring system;
Fig. 2 is tire piezo-electric generating of the present invention and emission coefficient structural representation;
Fig. 3 is the placement situation of U-shaped piezoelectric patches at wheel inwall;
Fig. 4 is the sinusoidal function form of average piezoelectricity current signal;
Fig. 5 is the characteristic curve between the amplitude of average piezoelectric current and tire pressure;
Fig. 6 is the characteristic curve between the frequency of average piezoelectric current and wheel speed.
In figure: cover tire 1, U-shaped piezoelectric patches 2, wheel rim 3, wire 4, sender unit 5, spoke 6.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment 1
As shown in Figure 1, a kind of piezoelectricity tire pressure wheel speed monitoring system of the present invention, comprising: tire piezoelectric detection assembly, and the sender unit 5 be connected with this tire piezo-electric generating assembly; Described sender unit 5 is suitable for piezoelectric signal to be sent to upper computer; Described upper computer is suitable for obtaining Tire testing parameter according to piezoelectric signal.
As shown in Figures 2 and 3, described tire piezoelectric detection assembly comprises: several are closely pasted on the U-shaped piezoelectric patches 2 of cover tire 1 inwall, and each U-shaped piezoelectric patches 2 is around core wheel, is uniformly distributed in circumference; Described sender unit 5 is connected with each U-shaped piezoelectric patches 2, to obtain the average piezoelectricity current signal of each U-shaped piezoelectric patches 2, and average piezoelectricity current signal is sent to upper computer.
Described sender unit 5 is arranged on wheel rim 3.
Described U-shaped piezoelectric patches 2 is suitable in tire rolling process, be subject to continuous compressive deformation and produces piezoelectric current.
The input end of described sender unit 5 is connected with a tank circuit, described tank circuit is suitable for the output piezoelectric current storing each U-shaped piezoelectric patches, and sender unit to be suitable for detecting in tank circuit capacitance voltage to obtain the average piezoelectricity current signal of each U-shaped piezoelectric patches 2.Wherein, electric current such as but be limited to employing one RC circuit parallel, and is converted to voltage by resistance and is stored by electric capacity by described reservoir capacitance.
As shown in Figure 4, described piezoelectric signal is average piezoelectricity current signal, and average piezoelectricity current signal is sinusoidal function distribution.
As shown in Figure 5 and Figure 6, described upper computer is suitable for obtaining Tire testing parameter according to piezoelectric signal, namely
Set up tyre characteristic data storehouse, get each tire pressure value, draw the amplitude of average piezoelectric current and the characteristic curve of tire pressure, namely the amplitude of average piezoelectric current and tire pressure are reverse proportionate relationship; Get each wheel speed value, draw the amplitude of average piezoelectric current and the characteristic curve of wheel speed, namely the change frequency of average piezoelectric current and wheel speed are forward proportionate relationship; When surveying, described upper computer judges tire pressure according to tyre characteristic data storehouse by the amplitude of average piezoelectric current, and judges wheel speed by the change frequency of average piezoelectric current.
And described upper computer is also provided with display unit, and check the data such as tire pressure, wheel speed by display unit.
Average piezoelectricity current signal modulation becomes wireless signal to be sent to upper computer by wireless communication mode by described sender unit; Reception of wireless signals processing module is provided with in described upper computer; Described reception of wireless signals processing module is suitable for the wireless signal of reception to be demodulated to average piezoelectricity current signal.
Embodiment 2
On embodiment 1 basis, present invention also offers a kind of piezoelectricity tire pressure wheel speed monitoring method, comprise the steps:
Step S1, obtains the piezoelectric signal of tire by tire piezoelectric detection assembly; And
Step S2, obtains Tire testing parameter according to piezoelectric signal.
As shown in Figures 2 and 3, described tire piezoelectric detection assembly comprises: several are closely pasted on the U-shaped piezoelectric patches of cover tire 1 inwall, and each U-shaped piezoelectric patches 2 is around core wheel, is uniformly distributed in circumference; The method being obtained the piezoelectric signal of tire in described step S1 by tire piezoelectric detection assembly is comprised: be connected with each U-shaped piezoelectric patches 2 by sender unit 5, to obtain the average piezoelectricity current signal of each U-shaped piezoelectric patches 2, and average piezoelectricity current signal is sent to upper computer.
As shown in Figures 4 to 6, in described step S2, obtain Tire testing parameter according to piezoelectric signal, namely obtain Tire testing parameter by upper computer according to piezoelectric signal; Wherein said piezoelectric signal is average piezoelectricity current signal, and average piezoelectricity current signal is sinusoidal function distribution; The described method obtaining Tire testing parameter according to piezoelectric signal by upper computer comprises: the method setting up tyre characteristic data storehouse comprises: get each tire pressure value, draw the amplitude of average piezoelectric current and the characteristic curve of tire pressure, namely the amplitude of average piezoelectric current and tire pressure are reverse proportionate relationship; Get each wheel speed value, draw the amplitude of average piezoelectric current and the characteristic curve of wheel speed, namely the change frequency of average piezoelectric current and wheel speed are forward proportionate relationship; And set up tire data storehouse according to above-mentioned characteristic curve.
On the basis setting up tyre characteristic data storehouse, described upper computer judges tire pressure according to tyre characteristic data storehouse by the amplitude of average piezoelectric current, and judge wheel speed by the change frequency of average piezoelectric current, namely the amplitude being suitable for the average piezoelectric current by obtaining in real time calculates tire pressure, and calculate wheel speed according to the change frequency of the average piezoelectric current obtained in real time, realize the tire pressure analysis to testing tire and wheel speed analysis.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to right.
Claims (9)
1. a piezoelectricity tire pressure wheel speed monitoring system, is characterized in that, comprising: tire piezoelectric detection assembly, and the sender unit be connected with this tire piezo-electric generating assembly;
Described sender unit is suitable for piezoelectric signal to be sent to upper computer;
Described upper computer is suitable for obtaining Tire testing parameter according to piezoelectric signal.
2. piezoelectricity tire pressure wheel speed monitoring system according to claim 1, is characterized in that, described tire piezoelectric detection assembly comprises: several are closely pasted on the U-shaped piezoelectric patches of cover tire inwall, and each U-shaped piezoelectric patches is around core wheel, is uniformly distributed in circumference;
Described sender unit is connected with each U-shaped piezoelectric patches, to obtain the average piezoelectricity current signal of each U-shaped piezoelectric patches, and average piezoelectricity current signal is sent to upper computer.
3. piezoelectricity tire pressure wheel speed monitoring system according to claim 2, is characterized in that,
The input end of described sender unit is connected with a tank circuit, described tank circuit is suitable for the output piezoelectric current storing each U-shaped piezoelectric patches, and sender unit to be suitable for detecting in tank circuit capacitance voltage to obtain the average piezoelectricity current signal of each U-shaped piezoelectric patches.
4. piezoelectricity tire pressure wheel speed monitoring system according to claim 3, is characterized in that, described piezoelectric signal is average piezoelectricity current signal, and average piezoelectricity current signal is sinusoidal function distribution;
Described upper computer is suitable for obtaining Tire testing parameter according to piezoelectric signal, namely
Set up tyre characteristic data storehouse, get each tire pressure value, draw the amplitude of average piezoelectric current and the characteristic curve of tire pressure, namely the amplitude of average piezoelectric current and tire pressure are reverse proportionate relationship; Get each wheel speed value, draw the amplitude of average piezoelectric current and the characteristic curve of wheel speed, namely the change frequency of average piezoelectric current and wheel speed are forward proportionate relationship;
When surveying, described upper computer judges tire pressure according to tyre characteristic data storehouse by the amplitude of average piezoelectric current, and judges wheel speed by the change frequency of average piezoelectric current.
5. piezoelectricity tire pressure wheel speed monitoring system according to claim 4, it is characterized in that, average piezoelectricity current signal modulation becomes wireless signal to be sent to upper computer by wireless communication mode by described sender unit;
Reception of wireless signals processing module is provided with in described upper computer;
Described reception of wireless signals processing module is suitable for the wireless signal of reception to be demodulated to average piezoelectricity current signal.
6. a piezoelectricity tire pressure wheel speed monitoring method, is characterized in that, comprise the steps:
Step S1, obtains the piezoelectric signal of tire by tire piezoelectric detection assembly;
Step S2, obtains Tire testing parameter according to piezoelectric signal.
7. piezoelectricity tire pressure wheel speed monitoring method according to claim 6, is characterized in that, described tire piezoelectric detection assembly comprises: several are closely pasted on the U-shaped piezoelectric patches of cover tire inwall, and each U-shaped piezoelectric patches is around core wheel, is uniformly distributed in circumference;
The method being obtained the piezoelectric signal of tire in described step S1 by tire piezoelectric detection assembly is comprised:
Be connected with each U-shaped piezoelectric patches by sender unit, to obtain the average piezoelectricity current signal of each U-shaped piezoelectric patches, and average piezoelectricity current signal be sent to upper computer.
8. piezoelectricity tire pressure wheel speed monitoring method according to claim 7, is characterized in that,
Obtain Tire testing parameter according to piezoelectric signal in described step S2, namely obtain Tire testing parameter by upper computer according to piezoelectric signal; Wherein
Described piezoelectric signal is average piezoelectricity current signal, and average piezoelectricity current signal is sinusoidal function distribution;
The described method obtaining Tire testing parameter according to piezoelectric signal by upper computer comprises:
Set up tyre characteristic data storehouse, when surveying, described upper computer judges tire pressure according to tyre characteristic data storehouse by the amplitude of average piezoelectric current, and judges wheel speed by the change frequency of average piezoelectric current.
9. piezoelectricity tire pressure wheel speed monitoring method according to claim 8, is characterized in that,
The method setting up tyre characteristic data storehouse comprises:
Get each tire pressure value, draw the amplitude of average piezoelectric current and the characteristic curve of tire pressure, namely the amplitude of average piezoelectric current and tire pressure are reverse proportionate relationship;
Get each wheel speed value, draw the amplitude of average piezoelectric current and the characteristic curve of wheel speed, namely the change frequency of average piezoelectric current and wheel speed are forward proportionate relationship;
And set up tire data storehouse according to above-mentioned characteristic curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510629440.8A CN105252970B (en) | 2015-09-28 | 2015-09-28 | Piezoelectric tire pressure wheel speed monitoring system and monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510629440.8A CN105252970B (en) | 2015-09-28 | 2015-09-28 | Piezoelectric tire pressure wheel speed monitoring system and monitoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105252970A true CN105252970A (en) | 2016-01-20 |
| CN105252970B CN105252970B (en) | 2017-03-01 |
Family
ID=55093034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510629440.8A Active CN105252970B (en) | 2015-09-28 | 2015-09-28 | Piezoelectric tire pressure wheel speed monitoring system and monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105252970B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106739854A (en) * | 2016-11-23 | 2017-05-31 | 重庆大学 | The monitoring of structures and its monitoring method of bicycle tire pressure |
| CN112078311A (en) * | 2020-08-25 | 2020-12-15 | 江苏理工学院 | Intelligent tire structure based on laser radar and analysis method |
| CN112124013A (en) * | 2020-08-25 | 2020-12-25 | 江苏理工学院 | Intelligent tire testing system and testing method based on piezoelectric power generation material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987004124A1 (en) * | 1986-01-10 | 1987-07-16 | Thomson-Csf | Dynamic pressure sensor for vehicle tyres |
| US20050134444A1 (en) * | 2003-12-22 | 2005-06-23 | Samsung Electronics Co., Ltd. | Self-powered sensing module and tire pressure monitoring system using the same |
| CN1721213A (en) * | 2004-07-07 | 2006-01-18 | 米其林技术公司 | Integrated self-powered tire revolution counter |
| WO2007000781A1 (en) * | 2005-06-28 | 2007-01-04 | Pirelli Tyre S.P.A. | A tyre provided with a device for detecting at least one functional parameter of the tyre itself, and a method for detecting at least one functional parameter in a tyre |
| CN102069686A (en) * | 2010-12-14 | 2011-05-25 | 吉林大学 | Automobile tire monitoring device based on organic piezoelectric material |
-
2015
- 2015-09-28 CN CN201510629440.8A patent/CN105252970B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987004124A1 (en) * | 1986-01-10 | 1987-07-16 | Thomson-Csf | Dynamic pressure sensor for vehicle tyres |
| US20050134444A1 (en) * | 2003-12-22 | 2005-06-23 | Samsung Electronics Co., Ltd. | Self-powered sensing module and tire pressure monitoring system using the same |
| CN1721213A (en) * | 2004-07-07 | 2006-01-18 | 米其林技术公司 | Integrated self-powered tire revolution counter |
| WO2007000781A1 (en) * | 2005-06-28 | 2007-01-04 | Pirelli Tyre S.P.A. | A tyre provided with a device for detecting at least one functional parameter of the tyre itself, and a method for detecting at least one functional parameter in a tyre |
| CN102069686A (en) * | 2010-12-14 | 2011-05-25 | 吉林大学 | Automobile tire monitoring device based on organic piezoelectric material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106739854A (en) * | 2016-11-23 | 2017-05-31 | 重庆大学 | The monitoring of structures and its monitoring method of bicycle tire pressure |
| CN106739854B (en) * | 2016-11-23 | 2018-10-23 | 重庆大学 | The monitoring of structures and its monitoring method of bicycle tire pressure |
| CN112078311A (en) * | 2020-08-25 | 2020-12-15 | 江苏理工学院 | Intelligent tire structure based on laser radar and analysis method |
| CN112124013A (en) * | 2020-08-25 | 2020-12-25 | 江苏理工学院 | Intelligent tire testing system and testing method based on piezoelectric power generation material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105252970B (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105252970A (en) | Piezoelectric tire pressure wheel speed monitoring system and detection method | |
| CN107303785A (en) | A kind of tire pressure monitoring system and method | |
| CN204586699U (en) | Automotive wheel radar | |
| CN105346338A (en) | On-board diagnostic (OBD) diagnosis base-based tire pressure abnormity monitoring method and device | |
| US20200031183A1 (en) | Systematized multi-point sensors unit for tire and tire having the same | |
| CN107024269A (en) | Radio noise and vibration-sensing | |
| CN103475275A (en) | Passive tire power generating device and tire parameter detecting system | |
| CN105882446B (en) | Electric car wireless charging method, apparatus and system | |
| CN105437880A (en) | Tire pressure monitoring system and method | |
| CN105301507B (en) | The quick determination method and device of a kind of capacity of lead acid battery | |
| CN103738190B (en) | A kind of electronlmobil rescue system and method | |
| EP1803590A3 (en) | Tire information communication system | |
| CN206627262U (en) | A kind of elastic strain measurement apparatus for 90 degree of impact tests of wheel | |
| CN205015731U (en) | Remote diagnosis service equipment and remote diagnosis service system of car | |
| WO2020034933A1 (en) | Device for detecting tire pressure by using current | |
| ATE407816T1 (en) | DEVICE FOR MONITORING CHARACTERISTIC PARAMETERS OF A TIRE | |
| JP5895783B2 (en) | Vehicle approach notification device | |
| CN207066513U (en) | Motor vehicle intelligent detection means and system in a kind of field based on bluetooth | |
| CN108973543A (en) | A kind of equipment using electricity consumption detection tire pressure | |
| CN107478321B (en) | Automobile noise detection device and automobile noise detection system | |
| CN104330269B (en) | Method for testing damping ratio of tyre-rim combination body | |
| CN202656804U (en) | TPMS (Tire Pressure Monitor System) sensor | |
| ATE390301T1 (en) | DEVICE FOR MONITORING CHARACTERISTIC PARAMETERS OF A TIRE | |
| CN107807056A (en) | A kind of auto parts and components lesion assessment system based on acceleration loading spectrum | |
| CN105539031A (en) | Integrated solution for flat automobile tire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |