CN110654188A - Tire pressure monitoring device and method - Google Patents
Tire pressure monitoring device and method Download PDFInfo
- Publication number
- CN110654188A CN110654188A CN201911032048.XA CN201911032048A CN110654188A CN 110654188 A CN110654188 A CN 110654188A CN 201911032048 A CN201911032048 A CN 201911032048A CN 110654188 A CN110654188 A CN 110654188A
- Authority
- CN
- China
- Prior art keywords
- tire
- detection
- tire pressure
- distance
- wireless communication
- 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
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
- B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to the technical field of tire pressure monitoring of tires, and discloses a tire pressure monitoring device of a tire, which comprises a detection terminal and a monitoring terminal, wherein the detection terminal comprises a gravity sensor, an ultrasonic sensor, a controller and a wireless communication circuit; the gravity sensor and the ultrasonic sensor are both arranged on the vehicle body, and a probe of the ultrasonic sensor is arranged towards the ground; the gravity sensor is electrically connected with the controller; the ultrasonic sensor is electrically connected with the controller; the controller is electrically connected with the wireless communication circuit and is wirelessly connected with the monitoring terminal through the wireless communication circuit. The invention has the technical effects that the tire pressure monitoring does not need to contact the tire, and the tire is not influenced.
Description
Technical Field
The invention relates to the technical field of tire pressure monitoring of tires, in particular to a tire pressure monitoring device and method of a tire.
Background
The tire pressure is directly related to driving safety, the tire pressure is monitored in real time, and the abnormal tire pressure is timely reminded, so that potential safety hazards caused by the abnormal tire pressure can be effectively reduced; in the prior art, the tire pressure is generally detected by directly contacting the tire with the pressure sensor, and the performance of the sensor and the performance of the tire are influenced to a certain extent by the detection mode.
Disclosure of Invention
The invention aims to overcome the technical defects and provide a tire pressure monitoring device and a tire pressure monitoring method for a tire, which solve the technical problem that in the prior art, the tire pressure detection needs a sensor to directly contact the tire, so that the performance of the tire and the performance of the sensor are affected.
In order to achieve the technical purpose, the technical scheme of the invention provides a tire pressure monitoring device for a tire, which comprises a detection terminal and a monitoring terminal, wherein the detection terminal comprises a gravity sensor, an ultrasonic sensor, a controller and a wireless communication circuit;
the gravity sensor and the ultrasonic sensor are both arranged on the vehicle body, and a probe of the ultrasonic sensor is arranged towards the ground; the gravity sensor is electrically connected with the controller and is used for detecting the inclination angle between the tire and the gravity direction; the ultrasonic sensor is electrically connected with the controller and is used for detecting the detection distance between the detection surface where the probe is located and the ground; the controller is electrically connected with the wireless communication circuit and is wirelessly connected with the monitoring terminal through the wireless communication circuit, the controller is used for judging whether the tire is in an abnormal state or not according to the inclination angle and the detection distance, and sending an abnormal signal to the monitoring terminal through the wireless communication circuit when the tire is in the abnormal state, and the monitoring terminal is used for sending an abnormal prompt according to the abnormal signal.
The invention also provides a tire pressure monitoring method of the tire, which comprises the following steps;
detecting the inclination angle between the tire and the gravity direction;
detecting the detection distance between a detection surface on the vehicle body and the ground;
judging whether the tire is in an abnormal state or not according to the inclination angle and the detection distance, and sending an abnormal signal in a wireless communication mode when the tire is in the abnormal state;
and sending an abnormal prompt according to the abnormal signal.
Compared with the prior art, the invention has the beneficial effects that: the invention adopts the gravity sensor and the ultrasonic sensor which are both arranged on the vehicle body and do not need to be contacted with the tire. The gravity sensor is used for detecting an inclination angle between a tire and the gravity direction, the ultrasonic sensor is used for detecting a detection distance between a detection surface and the ground, the vertical distance between a contact point of the tire and the ground and the detection surface can be calculated according to the inclination angle and the detection distance, when the tire pressure of the tire is abnormal, the tire is deformed, the real-time vertical distance between the contact point of the tire and the ground and the detection surface is also changed, the real-time vertical distance at the moment can be smaller than the distance between the contact point of the tire and the detection surface when the tire pressure of the tire is normal, the controller judges whether the tire pressure of the tire is normal or not by comparing the vertical distance with the normal vertical distance, and sends an abnormal signal to the monitoring terminal through the wireless communication circuit, so that the monitoring of the tire pressure without contact with.
Drawings
Fig. 1 is a circuit configuration diagram of an embodiment of a tire pressure monitoring device provided in the present invention;
FIG. 2 is a schematic view of an embodiment of a tire pressure monitoring device provided in the present invention;
FIG. 3 is a flow chart of an embodiment of a tire pressure monitoring method of a vehicle tire according to the present invention;
fig. 4 is a schematic diagram of a real-time vertical distance calculation in an embodiment of a tire pressure method of a vehicle provided by the present invention.
Reference numerals:
1. the device comprises a detection terminal, 11, a gravity sensor, 12, an ultrasonic sensor, 13, a controller, 14, a wireless communication circuit, 2, a monitoring terminal, 10 and a tire.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1, an embodiment 1 of the present invention provides a tire pressure monitoring device for a vehicle, including a detection terminal 1 and a monitoring terminal 2, where the detection terminal 1 includes a gravity sensor 11, an ultrasonic sensor 12, a controller 13, and a wireless communication circuit 14;
the gravity sensor 11 and the ultrasonic sensor 12 are both mounted on a vehicle body, and a probe of the ultrasonic sensor 12 is arranged towards the ground; the gravity sensor 11 is electrically connected with the controller 13 and is used for detecting the inclination angle between the tire 10 and the gravity direction; the ultrasonic sensor 12 is electrically connected with the controller 13 and is used for detecting the detection distance between the detection surface where the probe is located and the ground; the controller 13 is electrically connected to the wireless communication circuit 14 and wirelessly connected to the monitoring terminal 2 through the wireless communication circuit 14, the controller 13 is configured to determine whether the tire 10 is in an abnormal state according to the inclination angle and the detection distance, and send an abnormal signal to the monitoring terminal 2 through the wireless communication circuit 14 when the tire 10 is in the abnormal state, and the monitoring terminal 2 is configured to send an abnormal prompt according to the abnormal signal.
The tire pressure monitoring device of the tire provided by the invention has the following tire pressure detection principle: when the tire pressure of the bicycle tire is abnormal, the tire deforms, the distance between the detection surface of the probe of the ultrasonic sensor 12 and the road surface changes, the ultrasonic sensor 12 transmits detection distance data to the controller 13 in real time, the gravity sensor 11 detects the space attitude of the wheel in real time, transmits inclination angle data of the wheel to the controller 13 in real time, and the ultrasonic sensor 12 is assisted to determine the tire pressure state more accurately. The vertical distance between the contact point of the tire 10 and the ground and the detection surface can be calculated according to the inclination angle and the detection distance. When the tire pressure is abnormal, namely the vertical distance when the tire is flat can be obviously smaller than that when the tire pressure is normal, so that the abnormal monitoring of the tire pressure can be realized by monitoring the vertical distance.
The ultrasonic sensor 12 in this embodiment adopts an active ultrasonic sensor 12, and the active ultrasonic sensor 12 can transmit ultrasonic waves and receive reflected waves, and the distance between the active ultrasonic sensor 12 and the detection target can be determined by measuring the time interval between transmission and reception. Specifically, the present embodiment employs an ultrasonic sensor 12 of the type TELESKY US-015. The gravity sensor 11 works by using the positive piezoelectric effect, that is, for a heteropolar crystal without a symmetric center, an external force applied to the crystal not only deforms the crystal, but also changes the polarization state of the crystal to establish an electric field inside the crystal. When the crystal inside the sensor is polarized due to deformation to generate a voltage, the relationship between the generated voltage and the applied acceleration is known to convert the acceleration into a voltage output. In the present invention, the gravity sensor 11 is used for monitoring the spatial attitude of the wheel, and assists the ultrasonic sensor 12 to determine the tire pressure more accurately by correcting for the interference caused by the fact that the probe of the ultrasonic sensor 12 is not horizontally and vertically aligned with the flat ground due to the steering of the vehicle or the bumpiness of the road surface. Specifically, the present embodiment employs a three-axis gravity acceleration sensor with a model number of TELESKY ADXL 345; the controller 13 is a Huada MCU controller with model number HC32F 460.
The invention indirectly measures the type variable of the part of the tire contacting the road surface based on the distance between the probe of the ultrasonic sensor 12 and the road surface, the distance changes when the tire pressure is abnormal, the distance is corrected by the gravity sensor 11, the interference of factors such as vehicle steering is eliminated, and the ultrasonic sensor 12 and the gravity sensor 11 do not need to directly contact the tire.
Preferably, each tire 10 is provided with one detection terminal 1, and the wireless communication circuit 14 of each detection terminal 1 is wirelessly connected with the monitoring terminal 2.
Each tire 10 is provided with a detection terminal 1, so that the detection of the tire pressure of each tire 10 is realized. Specifically, each detection terminal 1 can also perform wireless communication connection through its own wireless communication circuit 14, and after the connection is successful, only one of the detection terminals 1 needs to be connected with the monitoring terminal 2, so that the abnormal tire pressure condition of each wheel can be transmitted to the monitoring terminal 2.
Preferably, as shown in fig. 2, the bicycle body is a bicycle, there are two detection terminals 1, one detection terminal 1 is installed on a front fork of the bicycle and located below a shock absorber, the other detection terminal 1 is installed at a joint of a rear upper fork and a rear lower fork of the bicycle, and the wireless communication circuits 14 of the two detection terminals 1 are both wirelessly connected with the monitoring terminal 2.
The detection terminal 1 of front wheel is installed on the front fork, and is located the below of bumper shock absorber, is located the bumper shock absorber below in order to get rid of the bumper shock absorber and stretches out and draws back the interference to the detection distance, and the detection terminal 1 of rear wheel is in back upper fork and back lower fork junction, and the ultrasonic sensor 12 probe of two detection terminal 1 all aims at ground perpendicularly. Two detection terminal 1 install respectively on bicycle front fork and back fork, need not additionally set up monitoring devices's initial parameter after changing wheel or tire.
Preferably, the wireless communication circuit 14 is a bluetooth circuit or an ANT + wireless circuit.
The wireless communication circuit 14 may be implemented using conventional techniques. Specifically, the Bluetooth circuit can be realized by a Jinou BLE0305C2P Bluetooth chip, and the ANT + wireless band can be realized by an ANT ANT-E01-ML01D wireless chip.
Preferably, the monitoring terminal 2 is an intelligent code meter, an intelligent mobile phone or an electronic instrument panel.
Preferably, the controller 13 is further configured to send the inclination data detected by the gravity sensor 11 and the detection distance data detected by the ultrasonic sensor 12 to the monitoring terminal 2 through the wireless communication circuit 14.
The wireless communication circuit 14 is configured to transmit data detected by the gravity sensor 11 and the ultrasonic sensor 12 in addition to the tire pressure abnormality signal, and the data detected by the gravity sensor 11 and the ultrasonic sensor 12 may be used as a basis for determining the tire pressure abnormality detection. For example, the data detected by the gravity sensor 11 and the ultrasonic sensor 12 may reflect the posture change of the vehicle body, thereby realizing the recording of the posture of the vehicle body.
Example 2
As shown in fig. 3, embodiment 2 of the present invention provides a tire pressure monitoring method for a vehicle tire, including the steps of;
s1, detecting the inclination angle between the tire 10 and the gravity direction;
s2, detecting the detection distance between the detection surface on the vehicle body and the ground;
s3, judging whether the tire 10 is in an abnormal state or not according to the inclination angle and the detection distance, and sending an abnormal signal in a wireless communication mode when the tire 10 is in the abnormal state;
and S4, sending an abnormal prompt according to the abnormal signal.
The tire pressure monitoring method provided by the invention corresponds to the tire pressure monitoring device, so that the technical effects of the tire pressure monitoring device are the same as those of the tire pressure monitoring method, and the description is omitted.
Preferably, as shown in fig. 4, X represents a ground surface, Y represents a gravity direction, and whether the tire 10 is in an abnormal state is determined according to the inclination angle and the detection distance, specifically:
calculating the real-time vertical distance between the contact point of the tire 10 and the ground and a detection surface according to the inclination angle and the detection distance:
b＝d-c/cotβ
wherein b is the real-time vertical distance, d is the detection distance, c is the horizontal distance between the tire 10 and the vertical plane from the ground contact point to the detection surface, c is a constant, and β is the inclination angle;
and judging whether the difference value between the real-time vertical distance and the normal vertical distance is smaller than a set threshold value, if so, judging that the tire pressure of the tire 10 is normal, otherwise, judging that the tire pressure of the tire 10 is abnormal, wherein the normal vertical distance is the distance between the contact point of the tire 10 and the ground and the detection surface when the tire pressure of the tire 10 is normal.
The set threshold is set based on the difference in thickness between the inflated and uninflated states of the tire 10. For example, for a bicycle, the set threshold may be set to 5mm, and for an automobile, the set threshold may be set to 10 mm.
Preferably, before determining whether the tire 10 is in an abnormal state according to the inclination angle and the detection distance, the method further includes:
and calibrating the horizontal distance and the set distance.
The horizontal distance and the normal vertical distance are related to the installation position of the ultrasonic sensor 12, and thus some deviation may occur between the horizontal distance and the normal vertical distance when the vehicle body is repaired or used for an excessively long time, and thus it is preferable to calibrate the horizontal distance and the normal vertical distance. The calibration of the normal vertical distance is achieved by using the ultrasonic sensor 12 and the gravity sensor 11, that is, the real-time vertical distance is detected and calculated as the normal vertical distance when the tire pressure is normal. The calibration of horizontal distance can set up an ultrasonic sensor for calibration again, and ultrasonic sensor for the calibration is connected with the controller electricity, and ultrasonic sensor for the calibration and ultrasonic sensor 12 fixed connection, and detection direction mutually perpendicular, and ultrasonic sensor sets up along the axis direction of tire pivot for the calibration, and sets up towards the tire pivot for horizontal distance's calibration, ultrasonic sensor for the calibration is generally in the off-state, gets into operating condition during the calibration, in order to save the electric quantity. The calibration can be divided into manual calibration and automatic calibration, the automatic calibration is automatically performed by the controller 13 sending a calibration instruction at a set time interval, and the manual calibration is performed by the monitoring terminal 2 manually sending a calibration instruction to the detection terminal 1 for calibration when a user is in maintenance or the like.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The tire pressure monitoring device is characterized by comprising a detection terminal and a monitoring terminal, wherein the detection terminal comprises a gravity sensor, an ultrasonic sensor, a controller and a wireless communication circuit;
the gravity sensor and the ultrasonic sensor are both arranged on the vehicle body, and a probe of the ultrasonic sensor is arranged towards the ground; the gravity sensor is electrically connected with the controller and is used for detecting the inclination angle between the tire and the gravity direction; the ultrasonic sensor is electrically connected with the controller and is used for detecting the detection distance between the detection surface where the probe is located and the ground; the controller is electrically connected with the wireless communication circuit and is wirelessly connected with the monitoring terminal through the wireless communication circuit, the controller is used for judging whether the tire is in an abnormal state or not according to the inclination angle and the detection distance, and sending an abnormal signal to the monitoring terminal through the wireless communication circuit when the tire is in the abnormal state, and the monitoring terminal is used for sending an abnormal prompt according to the abnormal signal.
2. The tire pressure monitoring device of claim 1, wherein each tire has a detection terminal mounted thereon, and the wireless communication circuit of each detection terminal is wirelessly connected to the monitoring terminal.
3. The tire pressure monitoring device according to claim 1, wherein the vehicle body is a bicycle, the number of the detecting terminals is two, one of the detecting terminals is mounted on a front fork of the bicycle and located below the shock absorber, the other detecting terminal is mounted at a joint of a rear upper fork and a rear lower fork of the bicycle, and the wireless communication circuits of the two detecting terminals are both wirelessly connected with the detecting terminal.
4. The tire pressure monitoring device of claim 1, wherein the wireless communication circuit is a bluetooth circuit or an ANT + wireless circuit.
5. The tire pressure monitoring device of the vehicle tire according to claim 1, wherein the monitoring terminal is a smart stopwatch, a smart phone or an electronic instrument panel.
6. The tire pressure monitoring device of claim 1, wherein the controller is further configured to transmit the inclination data detected by the gravity sensor and the detection distance data detected by the ultrasonic sensor to the monitoring terminal via the wireless communication circuit.
7. A tire pressure monitoring method of a tire is characterized by comprising the following steps;
detecting the inclination angle between the tire and the gravity direction;
detecting the detection distance between a detection surface on the vehicle body and the ground;
judging whether the tire is in an abnormal state or not according to the inclination angle and the detection distance, and sending an abnormal signal in a wireless communication mode when the tire is in the abnormal state;
and sending an abnormal prompt according to the abnormal signal.
8. The tire pressure monitoring method according to claim 7, wherein the step of judging whether the tire is in an abnormal state according to the inclination angle and the detection distance is specifically as follows:
calculating the real-time vertical distance between the contact point of the tire and the ground and a detection surface according to the inclination angle and the detection distance:
b＝d-c/cotβ
wherein b is the real-time vertical distance, d is the detection distance, c is the horizontal distance between the contact point of the tire and the ground and the vertical plane of the detection surface, c is a constant, and beta is the inclination angle;
and judging whether the difference value between the real-time vertical distance and the normal vertical distance is smaller than a set threshold value, if so, judging that the tire pressure of the tire is normal, otherwise, judging that the tire pressure of the tire is abnormal, wherein the normal vertical distance is the distance between the contact point of the tire and the ground and a detection surface when the tire pressure of the tire is normal.
9. The tire pressure monitoring method according to claim 7, wherein before determining whether the tire is in an abnormal state according to the inclination angle and the detection distance, further comprising:
and calibrating the horizontal distance and the set distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911032048.XA CN110654188B (en) | 2019-10-28 | 2019-10-28 | Tire pressure monitoring device and method for vehicle tires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911032048.XA CN110654188B (en) | 2019-10-28 | 2019-10-28 | Tire pressure monitoring device and method for vehicle tires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110654188A true CN110654188A (en) | 2020-01-07 |
| CN110654188B CN110654188B (en) | 2023-09-08 |
Family
ID=69042232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911032048.XA Active CN110654188B (en) | 2019-10-28 | 2019-10-28 | Tire pressure monitoring device and method for vehicle tires |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110654188B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112443A (en) * | 2020-08-28 | 2022-03-01 | 深超光电（深圳）有限公司 | Monitoring system for monitoring wheel state and monitoring method using same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3909466A1 (en) * | 1989-03-22 | 1990-10-04 | Duerrwaechter E Dr Doduco | Method and device for monitoring tyre pressure |
| JPH0682327A (en) * | 1992-08-31 | 1994-03-22 | Fujikura Ltd | Apparatus for monitoring inner pressure of tire |
| JPH0972733A (en) * | 1995-09-06 | 1997-03-18 | Sumitomo Rubber Ind Ltd | Attitude angle monitor for wheel |
| JP2004345608A (en) * | 2003-05-26 | 2004-12-09 | Sony Corp | Vehicle steered by movement of center of gravity |
| CN107991022A (en) * | 2017-12-12 | 2018-05-04 | 中机科(北京)车辆检测工程研究院有限公司 | Automobile wheel track, wheelbase, centroid position method for automatic measurement |
| EP3434499A2 (en) * | 2017-07-27 | 2019-01-30 | Robert Bosch GmbH | Method and device for detecting the deflection of a wheel |
| CN210911907U (en) * | 2019-10-28 | 2020-07-03 | 武汉齐物科技有限公司 | Tire pressure monitoring device |
-
2019
- 2019-10-28 CN CN201911032048.XA patent/CN110654188B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3909466A1 (en) * | 1989-03-22 | 1990-10-04 | Duerrwaechter E Dr Doduco | Method and device for monitoring tyre pressure |
| JPH0682327A (en) * | 1992-08-31 | 1994-03-22 | Fujikura Ltd | Apparatus for monitoring inner pressure of tire |
| JPH0972733A (en) * | 1995-09-06 | 1997-03-18 | Sumitomo Rubber Ind Ltd | Attitude angle monitor for wheel |
| JP2004345608A (en) * | 2003-05-26 | 2004-12-09 | Sony Corp | Vehicle steered by movement of center of gravity |
| EP3434499A2 (en) * | 2017-07-27 | 2019-01-30 | Robert Bosch GmbH | Method and device for detecting the deflection of a wheel |
| CN107991022A (en) * | 2017-12-12 | 2018-05-04 | 中机科(北京)车辆检测工程研究院有限公司 | Automobile wheel track, wheelbase, centroid position method for automatic measurement |
| CN210911907U (en) * | 2019-10-28 | 2020-07-03 | 武汉齐物科技有限公司 | Tire pressure monitoring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112443A (en) * | 2020-08-28 | 2022-03-01 | 深超光电（深圳）有限公司 | Monitoring system for monitoring wheel state and monitoring method using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110654188B (en) | 2023-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111599036B (en) | Vehicle detection system and vehicle detection method | |
| US20030115945A1 (en) | Transmitter of tire condition monitoring apparatus | |
| CN103538430B (en) | A kind of overload based reminding method based on tire pressure monitoring system | |
| US20080197995A1 (en) | Method for inspecting wheel state monitoring system, wheel state monitoring system, and receiver | |
| CN111688419B (en) | Direct and indirect type hybrid tire pressure monitoring and adjusting system and control method thereof | |
| CA2570525A1 (en) | Tire management system | |
| CN109029954A (en) | A kind of loosened screw warning device and system | |
| JP4175307B2 (en) | Tire pressure detector | |
| CN110654188A (en) | Tire pressure monitoring device and method | |
| CN210911907U (en) | Tire pressure monitoring device | |
| CN102529604A (en) | Tire pressure monitor system | |
| BR112021018102B1 (en) | Pneumatic tire monitoring system and monitoring method to save energy consumption | |
| CN202507863U (en) | Tire pressure monitoring system | |
| US7116217B2 (en) | Transmitter and receiver for tire condition monitoring apparatus | |
| WO2006090690A1 (en) | Sensor abnormality judging device and sensor abnormality judging method | |
| US8935956B2 (en) | Touch-control tire pressure sensor device and its setting method | |
| EP1184209B1 (en) | Apparatus and method for alarming decrease in tyre air pressure | |
| CN113619334A (en) | Tire pressure sensor matching system | |
| CN102463858A (en) | Built-in tire pressure monitoring system | |
| JP2009292443A (en) | Tire air pressure alarm device | |
| CN208452715U (en) | A kind of built-in tire pressure detector monitored on-line | |
| CN200990139Y (en) | Vehicle tyre pressure detector | |
| CN219076926U (en) | Tire pressure transmitter device using Bluetooth as wireless transmission | |
| CN215284236U (en) | Tire failure detection device | |
| CN211764724U (en) | Tire pressure sensor positioning system and rail car |
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 |