CN109532349B - On-line detection device for tire pressure of motor vehicle - Google Patents
On-line detection device for tire pressure of motor vehicle Download PDFInfo
- Publication number
- CN109532349B CN109532349B CN201811378822.8A CN201811378822A CN109532349B CN 109532349 B CN109532349 B CN 109532349B CN 201811378822 A CN201811378822 A CN 201811378822A CN 109532349 B CN109532349 B CN 109532349B
- Authority
- CN
- China
- Prior art keywords
- module
- processing unit
- central processing
- transmitter
- tire 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices 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 or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices 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 or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0401—Signalling devices actuated by tyre pressure mounted on the wheel or tyre characterised by the type of alarm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices 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 or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
- B60C23/0488—Movement sensor, e.g. for sensing angular speed, acceleration or centripetal force
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses an on-line detection device for the air pressure of a motor vehicle tire, which comprises a wheel, a tire and a fixed shaft, wherein a signal module I, a signal module II and a transmitter are sequentially arranged on the device, an infrared distance measuring sensor is arranged in the transmitter and connected with a signal processing module, the signal processing module is connected with a central processing unit, a comparison database is input into the central processing unit, the infrared distance measuring sensor respectively measures the distances L1 and L2 from the transmitter to the signal module I and the signal module II, the central processing unit compares the absolute value delta L of the phase difference between L1 and L2 with the comparison database, the central processing unit sends the comparison result to a display module, and the central processing unit is connected with a warning module; according to the invention, the distance difference Delta L between the tire and the wheel is measured by the infrared distance measuring sensor and is compared with the comparison database, when the tire is abnormal, the distance difference Delta L is compared with the database abnormally, and the central processing unit sends an alarm to remind a driver through the warning module.
Description
Technical Field
The invention relates to the technical field of tire pressure detection, in particular to an online detection device for the tire pressure of a motor vehicle.
Background
The tire pressure detection has the functions of automatically detecting the tire pressure in real time in the driving process of the automobile and giving an alarm on the air leakage and low air pressure of the tire so as to ensure the driving safety.
When the automobile runs, if the tire pressure is too high, the contact area between the tire and the ground can be reduced, the pressure born by the tire is relatively increased, and the grip of the tire can be influenced. In addition, when a vehicle passes through a sill or a bumpy road surface, no enough space is available in the tire to absorb shock, so that the driving stability and riding comfort are affected, and the impact force on a suspension system is increased, so that the damage is brought; meanwhile, the hidden danger of tire burst at high temperature is correspondingly increased. Most of automobiles equipped with the tire pressure monitoring devices at present are high-grade automobiles, the tire pressure monitoring devices are not widely equipped on all automobiles, and the ordinary automobiles are not provided with the tire pressure monitoring devices, if the tire pressure monitoring devices which are arranged in a matched mode are used, the price is high, configuration support of the automobiles is needed, and all the automobiles need to be equipped with the tire pressure monitoring devices which can be installed on any motor vehicles urgently.
Disclosure of Invention
The invention mainly aims to provide an online detection device for the tire pressure of a motor vehicle, which can be arranged on any motor vehicle, is simple to assemble and convenient to operate, can give an alarm in time when the tire pressure is abnormal, and can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that: an on-line detection device for the air pressure of the tyre of a motor vehicle comprises a wheel, a tyre and a fixed shaft, wherein a first signal module is arranged on the wheel, a second signal module is arranged on the tyre, a transmitter is arranged on the fixed shaft, an infrared distance measuring sensor is arranged in the transmitter and connected with a signal processing module, the signal processing module is connected with a central processing unit, a comparison database is input into the central processing unit, the infrared distance measuring sensor respectively measures the distances L1 and L2 between the transmitter and the first signal module and between the infrared distance measuring sensor and the second signal module, the signal processing module converts the data of L1 and L2 into a digital mode and sends the digital mode to, the central processing unit carries out difference value conversion on the L1 and the L2 and compares the absolute value delta L of the converted difference value with the comparison database, the central processing unit sends the comparison result to the receiving module, the receiving module is connected with the display module, and the central processing unit is connected with the warning module.
Preferably, the comparison database is large data of the difference value delta L between L1 and L2 measured by experiments under the condition that the tire pressure is normal, and the difference value delta L between L1 and L2 of the vehicle under various driving conditions is acquired under the condition that the tire pressure is normal, so that the acquisition is wide and the accuracy is high.
Preferably, the transmitter is further provided with a rotating speed sensor, the rotating speed sensor is connected with a signal processing module, the signal processing module is connected with a central processing unit, the rotating speed of the wheel is monitored through the rotating speed sensor, the monitored rotating speed is sent to the central processing unit through the signal processing module, the central processing unit inputs a rotating speed database of the wheel under normal tire pressure, the rotating speed data monitored in the rotating speed sensor is compared with the rotating speed database, a comparison result is sent to a display module, the rotating speed data is displayed in the display screen, and when the data comparison result is abnormal, the central processing unit sends out a warning through a warning module.
Preferably, the transmitter is further provided with a temperature sensor, the temperature sensor is connected with the signal processing module, the temperature sensor measures the friction heat generated by the friction between the tire and the ground, when the air pressure of the tire is too low, the contact area between the tire and the ground is large, the friction heat generated by the tire is correspondingly increased, the temperature sensor transmits the received data to the central processing unit, the central processing unit inputs a temperature database under the normal tire pressure, the temperature data received by the temperature sensor is compared with the temperature database, the comparison result is sent to the display module, the received data is displayed on the display screen, and when the data comparison result is abnormal, the central processing unit sends out a warning through the warning module.
Preferably, the sensor in the transmitter transmits for a period T of one wheel revolution, T1, and the transmission period T of the sensor in the transmitter varies with the period T1 of one wheel revolution.
Preferably, the period T1 of one wheel revolution is the wheel rotation speed period under normal tire pressure, when the tire pressure is abnormal, the wheel rotation speed period T1 becomes smaller and the transmission period T also becomes smaller correspondingly under the same vehicle speed, and then the transmitter transmits the data of the transmission period T to the central processing unit, and the central processing unit transmits the data to the display module and sends the warning through the warning module.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the distance difference Delta L between the tire and the wheel is measured by the infrared distance measuring sensor and compared with the comparison database, when the tire is abnormal, the distance difference Delta L is compared with the database abnormally, the central processing unit sends data to the display module, and the warning module gives an alarm to remind a driver.
Drawings
FIG. 1 is a system connection diagram of the present invention;
FIG. 2 is a flow chart of a system implementation of the present invention;
fig. 3 is a partial configuration view of the tire testing device of the present invention.
In the figure: 1. a wheel; 2. a tire; 3. a fixed shaft; 4. a first signal module; 5. a second signal module; 6. a transmitter; 7. an infrared ranging sensor; 8. a signal processing module; 9. a central processing unit; 10. comparing the databases; 11. a receiving module; 12. a display module; 13. a rotational speed sensor; 14. a rotational speed database; 15. a temperature sensor; 16. a temperature database; 17. and an alarm module.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-3, an online detection device for tire pressure of a motor vehicle comprises a wheel 1, a tire 2 and a fixed shaft 3, wherein the wheel 1 is provided with a first signal module 4, the tire 2 is provided with a second signal module 5, the fixed shaft 3 is provided with a transmitter 6, the transmitter 6 is provided with an infrared distance sensor 7, the infrared distance sensor 7 is connected with a signal processing module 8, the signal processing module 8 is connected with a central processor 9, the central processor 9 is internally provided with a comparison database 10, the infrared distance sensor 7 respectively measures distances L1 and L2 between the transmitter and the first signal module 4 and between the transmitter and the second signal module 5, the signal processing module 8 converts data of L1 and L2 into digital modes and sends the digital modes to the central processor 9, the central processor 9 performs difference value conversion on L1 and L2 and compares an absolute value Δ L of the converted phase difference with the comparison database 10, the central processor 9 sends the compared result to a receiving module 11, the receiving module 11 is connected with the display module 12, and the central processing unit 9 is connected with the warning module 17.
In this embodiment, the comparison database 10 is large data of a difference Δ L between L1 and L2 measured by experiments under the condition that the tire pressure is normal, and when the tire pressure is normal, the difference Δ L between L1 and L2 of the vehicle under various driving conditions is acquired, so that the acquisition is wide and the accuracy is high.
In this embodiment, a rotation speed sensor 13 is further disposed in the transmitter 6, the rotation speed sensor 13 is connected to the signal processing module 8, the signal processing module 8 is connected to the central processing unit 9, the rotation speed of the wheel is monitored by the rotation speed sensor 13, the monitored rotation speed is sent to the central processing unit 9 through the signal processing module, the central processing unit 9 inputs the rotation speed database 14 of the wheel under normal tire pressure, the rotation speed data monitored by the rotation speed sensor 13 is compared with the rotation speed database 14, the comparison result is sent to the display module 12, the comparison result is displayed on the display screen, and when the data comparison result is abnormal, the central processing unit 9 sends out an alarm through the alarm module 17.
In this embodiment, the transmitter 6 is further provided with a temperature sensor 15, the temperature sensor 15 is connected with the signal processing module 8, the temperature sensor 15 measures friction heat generated by friction between the tire and the ground, when the tire pressure is too low, the contact area between the tire and the ground is large, so that the friction heat generated by the tire is correspondingly increased, the temperature sensor 15 transmits the received data to the central processor 9, the central processor 9 inputs a temperature database 16 under normal tire pressure, the temperature data received by the temperature sensor 15 is compared with the temperature database 16, and the comparison result is sent to the display module 12 and comes out of the display screen, when the data comparison result is abnormal, the central processor 9 sends out a warning through the warning module 17.
In this embodiment, the transmission period T of the rotation speed sensor, the temperature sensor and the infrared distance measuring sensor in the transmitter 6 is the period T1 of one rotation of the wheel, and the transmission period T of the rotation speed sensor, the temperature sensor and the infrared distance measuring sensor in the transmitter 6 varies with the period T1 of one rotation of the wheel.
In this embodiment, the period T1 of one wheel revolution is the wheel rotation speed period under normal tire pressure, when the tire pressure is abnormal, the wheel rotation speed period T1 becomes smaller and the transmission period T also becomes smaller correspondingly under the same vehicle speed, and then the transmitter transmits the data of the transmission period T to the central processing unit, and the central processing unit 9 transmits the data to the display module and sends an alarm through the alarm module 17.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (5)
1. The utility model provides an online detection device of motor vehicle tire air pressure, includes wheel, tire and fixed axle, its characterized in that: the wheel is provided with a signal module I, the tire is provided with a signal module II, the fixed shaft is provided with a transmitter, the transmitter is internally provided with an infrared distance measuring sensor which is connected with a signal processing module, the signal processing module is connected with a central processing unit, a comparison database is input in the central processing unit, the infrared distance measuring sensor respectively measures distances L1 and L2 from the transmitter to the signal module I and the signal module II, the signal processing module converts data of L1 and L2 into a digital mode and sends the digital mode to the central processing unit, the central processing unit compares an absolute value delta L of a phase difference between L1 and L2 with the comparison database, the central processing unit sends a comparison result to a receiving module, the receiving module is connected with a display module, the central processing unit is connected with a warning module, and the comparison database is used under the condition that the tire pressure is normal, the experiment shows that the difference Delta L between L1 and L2 is large.
2. The on-line tire pressure detecting device for a vehicle according to claim 1, wherein: the transmitter is also provided with a rotating speed sensor, the rotating speed sensor is connected with a signal processing module, the signal processing module is connected with a central processing unit, a rotating speed database of the wheel under normal tire pressure is input into the central processing unit, and the rotating speed data monitored by the rotating speed sensor is compared with the rotating speed database.
3. The on-line tire pressure detecting device for a vehicle according to claim 1, wherein: the temperature sensor is also arranged in the transmitter and connected with the signal processing module, the central processing unit inputs the temperature database under the normal tire pressure and compares the temperature data received by the temperature sensor with the temperature database.
4. The on-line tire pressure detecting device for a vehicle according to claim 1, wherein: the transmission period T in the transmitter is the period T1 of one wheel turn, and the transmission period T of the sensor in the transmitter varies with the period T1 of one wheel turn.
5. The on-line tire pressure detecting device for a vehicle according to claim 4, wherein: the period T1 of one wheel rotation is the period of the wheel rotating speed under the normal tire pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811378822.8A CN109532349B (en) | 2018-11-19 | 2018-11-19 | On-line detection device for tire pressure of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811378822.8A CN109532349B (en) | 2018-11-19 | 2018-11-19 | On-line detection device for tire pressure of motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109532349A CN109532349A (en) | 2019-03-29 |
| CN109532349B true CN109532349B (en) | 2020-08-18 |
Family
ID=65848396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811378822.8A Active CN109532349B (en) | 2018-11-19 | 2018-11-19 | On-line detection device for tire pressure of motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109532349B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332077B (en) * | 2019-08-20 | 2021-11-30 | 厦门乐创智联科技有限公司 | Tire monitoring and managing system and using method thereof |
| CN111982391B (en) * | 2020-08-20 | 2022-01-18 | 广东电网有限责任公司 | Parking space tire pressure detection device and detection method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10144946B4 (en) * | 2001-09-12 | 2005-04-07 | Barske, Heiko, Dipl.-Phys. Dr. | A method and system for monitoring the inflation pressure of a rim mounted tire of a vehicle wheel |
| US6778075B2 (en) * | 2002-04-30 | 2004-08-17 | Continental Teves, Ag & Co., Ohg | Tire inflation monitoring system |
| DE102010004149B4 (en) * | 2010-01-07 | 2018-01-04 | Continental Automotive Gmbh | Method and device for determining the mileage of a tire |
| CN202413305U (en) * | 2012-01-06 | 2012-09-05 | 陈博文 | Monitoring and alarming system for automobile tire |
| CN203854430U (en) * | 2014-04-22 | 2014-10-01 | 昆达电脑科技(昆山)有限公司 | Automobile tire monitoring device |
| JP6111220B2 (en) * | 2014-06-05 | 2017-04-05 | 太平洋工業株式会社 | Tire condition monitoring device |
| CN205706016U (en) * | 2016-06-20 | 2016-11-23 | 常州市祺胜塑胶化工有限公司 | A kind of indirect type tire pressure monitoring system based on wheel cover of automobile |
| CN106183662B (en) * | 2016-07-08 | 2018-10-30 | 深圳市元征科技股份有限公司 | Tire condition detection method and device |
-
2018
- 2018-11-19 CN CN201811378822.8A patent/CN109532349B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109532349A (en) | 2019-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5483220A (en) | Detecting a deflated tire by comparing angular velocity data of all wheels, a data table, and the directly-measured pressure of a single tire | |
| CN109572334A (en) | Combined type tire pressure monitoring method and tire pressure monitoring equipment | |
| CN110281711B (en) | Tire pressure detection system and method thereof | |
| US5442331A (en) | Method and device for detecting a deflated tire by comparing angular velocity and forward/backward speed data with a data table | |
| CN111433054B (en) | Method and system for monitoring parameters related to a tyre during the running of a vehicle | |
| CN203567487U (en) | Simulation test system of TPMS (Tire Pressure Monitor System) | |
| CN204432265U (en) | Many algorithm fusions type commercial vehicle/comm..vehicle tire pressure monitoring system and this commercial vehicle/comm..vehicle | |
| CN109532349B (en) | On-line detection device for tire pressure of motor vehicle | |
| US9649896B1 (en) | Method and system for tire pressure monitoring system (TPMS) with wireless tire condition sensing and warning | |
| CN104118283A (en) | Method and system for monitoring tire air pressure abnormity | |
| US20130342341A1 (en) | Tire monitoring system and method | |
| US20070299573A1 (en) | Accelerometer based system for detection of tire tread separation and loose wheels | |
| JP4964328B2 (en) | Tire pressure drop detection device, method and program | |
| JP2014035207A (en) | Tire inflation pressure reduction detection device, method, and program | |
| CN111907269A (en) | Vehicle state detection system based on intelligent tire technology | |
| CN102485513B (en) | Method for detecting tire leakage | |
| CN206124637U (en) | Novel tire fuel detonation suppressant system | |
| CN112498020A (en) | Vehicle-mounted intelligent terminal integrating tire pressure monitoring | |
| CN107867131A (en) | A kind of vehicle safety monitoring method and system | |
| JP2014044053A (en) | Tire pressure reduction detection device, method, and program | |
| JP5555486B2 (en) | Tire internal pressure drop detection method and apparatus, and tire internal pressure drop detection program | |
| CN203069755U (en) | Differential motor rotation speed detection device | |
| JP4764913B2 (en) | Tire pressure drop detection device and method, and tire pressure drop detection program | |
| TW202125448A (en) | A method for monitoring a vehicle abnormality | |
| CN110789278A (en) | Tire pressure monitoring method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |