CN213035604U - Tire pressure sensor detecting system - Google Patents
Tire pressure sensor detecting system Download PDFInfo
- Publication number
- CN213035604U CN213035604U CN202022006861.4U CN202022006861U CN213035604U CN 213035604 U CN213035604 U CN 213035604U CN 202022006861 U CN202022006861 U CN 202022006861U CN 213035604 U CN213035604 U CN 213035604U
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- sensor
- tire pressure
- tire
- axis acceleration
- pressure monitoring
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- 230000001133 acceleration Effects 0.000 claims abstract description 59
- 238000012544 monitoring process Methods 0.000 claims abstract description 49
- 238000005070 sampling Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000012806 monitoring device Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to a tire pressure sensor detection system, which comprises a tire pressure monitoring sensor, wherein the tire pressure monitoring sensor is used for monitoring the air pressure and temperature inside a tire, a Z-axis acceleration sensor and an ADC (analog to digital converter) sampling interface are arranged inside the tire pressure monitoring sensor, and the Z-axis acceleration sensor is used for acquiring the Z-axis acceleration of the tire; the X-axis acceleration sensor is used for monitoring the X-axis acceleration of the tire and is connected with the ADC sampling interface, so that the tire pressure monitoring sensor can acquire the X-axis acceleration of the tire; and the battery is connected with the tire pressure monitoring sensor and the X-axis acceleration sensor. According to the tire pressure sensor detection system, the external X-axis acceleration sensor is adopted, so that the tire pressure sensor only supporting single-axis acceleration detection can be applied to the automatic tire pressure positioning scene for distinguishing left and right wheels and power field intensity under the condition that the chip is not replaced, and the risk of repeated development caused by replacement of the core tire pressure sensor chip is avoided.
Description
Technical Field
The utility model relates to an automobile sensor detects technical field, in particular to tire pressure sensor detecting system.
Background
At present, some tire pressure monitoring sensors (such as Yingfei SP370/SP400 and the like) only detect acceleration of a single shaft (Z shaft), can judge whether wheels are in a static state or in a running state according to the acceleration of the Z shaft, but cannot judge the acceleration of other shafts to distinguish left and right wheels, and cannot be used in a scene where the left and right wheels need to be distinguished and power field intensity judgment is carried out for automatic positioning.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: in order to overcome the defects of the prior art, a tire pressure sensor detection system is provided.
In order to achieve the above technical effect, the utility model discloses a technical scheme is: a tire pressure sensor detecting system installed in each tire of a vehicle, comprising:
the tire pressure monitoring sensor is used for monitoring the air pressure and the temperature in the tire, a Z-axis acceleration sensor and an ADC (analog to digital converter) sampling interface are arranged in the tire pressure monitoring sensor, and the Z-axis acceleration sensor is used for acquiring the Z-axis acceleration of the tire;
the X-axis acceleration sensor is used for monitoring the X-axis acceleration of the tire and is connected with the ADC sampling interface, so that the tire pressure monitoring sensor can acquire the X-axis acceleration of the tire; and
and the battery is connected with the tire pressure monitoring sensor and the X-axis acceleration sensor and used for supplying power to the tire pressure monitoring sensor and the X-axis acceleration sensor.
Further, a radio frequency transmitting module is further arranged inside the tire pressure monitoring sensor.
Further, the installation directions of the tire pressure monitoring sensors in the left tire and the right tire of the vehicle are opposite.
Compared with the prior art, the beneficial effects of the utility model are that: through the external X-axis acceleration sensor, under the condition that a chip is not replaced, the tire pressure sensor only supporting single-axis acceleration detection can be applied to the automatic tire pressure positioning scene for distinguishing left and right wheels and power field intensity, and the risk and related consequences of repeated development caused by replacement of a core tire pressure sensor chip are avoided.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments, and it is obvious that the described embodiments are some embodiments, not all embodiments of the present invention.
Drawings
Fig. 1 is a block diagram of the tire pressure sensor detecting system of the present invention;
fig. 2 is the installation schematic diagram of the tire pressure sensor of the present invention.
The reference numbers and corresponding designations in the drawings are: 1. the tire pressure monitoring system comprises a tire pressure monitoring sensor, 2. an X-axis acceleration sensor, 3. a battery, 4. a Z-axis acceleration sensor, 5. an ADC sampling interface, 6. a radio frequency transmitting module and 7. a tire.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, the present embodiment provides a tire pressure sensor detecting system, installed in each tire 7 of a vehicle, including:
the tire pressure monitoring system comprises a tire pressure monitoring sensor 1, wherein the tire pressure monitoring sensor 1 is used for monitoring the air pressure and the temperature inside a tire 7, a Z-axis acceleration sensor 4 and an ADC (analog to digital converter) sampling interface 5 are arranged inside the tire, and the Z-axis acceleration sensor 4 is used for acquiring the Z-axis acceleration of the tire 7; the ADC sampling interface 5 is used for connecting the X-axis acceleration sensor 2 and converting the voltage value output by the X-axis acceleration sensor.
The built-in Z-axis acceleration sensor 4 judges whether the tire 7 is in a running state or a static state at the moment, so that the working mode of the tire pressure monitoring sensor 1 can be changed, the purpose of saving electricity is achieved, and the cruising ability is prolonged.
The X-axis acceleration sensor 2 is used for monitoring the X-axis acceleration of the tire 7, and is connected with the ADC sampling interface 5, so that the tire pressure monitoring sensor 1 can acquire the X-axis acceleration of the tire 7;
the X-axis acceleration sensor 2 is connected to the outer side of the tire pressure monitoring sensor 1, monitors and outputs a voltage value in direct proportion to the X-axis acceleration value, is connected through the ADC sampling interface 5 and converts the voltage value, so that the tire pressure monitoring sensor 1 obtains the X-axis acceleration of the tire 7, and the left wheel and the right wheel are distinguished through calculation.
And the battery 3 is connected with the tire pressure monitoring sensor 1 and the X-axis acceleration sensor 2 and used for supplying power to the tire pressure monitoring sensor 1 and the X-axis acceleration sensor 2.
Wherein, the inside of the tire pressure monitoring sensor 1 is also provided with a radio frequency transmitting module 6; the mounting directions of the tire pressure monitoring sensors 1 in the left and right tires 7 of the vehicle are opposite. The radio frequency transmitting module 6 can transmit wireless signals and inform a monitoring signal limiting transmission to a user.
As shown in fig. 2, in the present embodiment, when in use, the Z-axis direction is perpendicular to the hub plane direction of the tire 7, and assuming that the tire 7 rotates at a uniform speed, the acceleration value in the Z-axis direction is the sum of the centripetal acceleration of the tire pressure sensor and the Z-axis component of the gravitational acceleration, the centripetal acceleration of the tire pressure monitoring sensor 1 is a constant value, and the Z-axis component of the gravitational acceleration changes with the rotation of the tire 7. When the tire pressure detection sensor is located at the highest point A of the tire 7, the Z-axis acceleration value is minimum; when the tire pressure detecting sensor is located at the lowest point B of the tire 7, the Z-axis acceleration value is the largest, so that it can be determined when the tire pressure detecting sensor is located at the highest point a and the lowest point B of the tire 7. Because the tire 7 is doing uniform motion, the X-axis acceleration is equal to the X-axis component of the gravitational acceleration, the X-axis component of the gravitational acceleration is a positive number when running from the highest point a to the lowest point B, and the X-axis component of the gravitational acceleration is a negative number when running from the lowest point B to the highest point a.
Because the installation directions of the tire pressure monitoring sensors 1 in the left tire 7 and the right tire 7 are opposite, when the tire pressure monitoring sensor is used, 10 measuring points are taken in the time from the highest point A to the lowest point B of the tire pressure monitoring sensor 1, 10 measuring points are taken in the time from the lowest point B to the highest point A, and the voltage values output by the X-axis acceleration sensor 2 are respectively measured. When the sum of the voltage values measured in the time from the highest point A to the lowest point B is greater than the sum of the voltage values measured in the time from the lowest point B to the highest point A, the tire 7 moves in the counterclockwise direction; when the sum of the voltage values measured from the highest point A to the lowest point B is less than the sum of the voltage values measured from the lowest point B to the highest point A, the tire 7 moves clockwise, and the left wheel and the right wheel are distinguished by judging whether the rotation direction of the tire pressure monitoring sensor 1 is consistent with the automobile advancing direction.
The present invention is not limited to the above specific embodiments, and for those skilled in the art, the above conception can be used without any creative work, and all the changes made fall within the protection scope of the present invention.
Claims (3)
1. A tire pressure sensor detecting system installed in each tire (7) of a vehicle, comprising:
the tire pressure monitoring device comprises a tire pressure monitoring sensor (1), wherein the tire pressure monitoring sensor (1) is used for monitoring the air pressure and temperature inside a tire (7), a Z-axis acceleration sensor (4) and an ADC (analog to digital converter) sampling interface (5) are arranged inside the tire pressure monitoring sensor, and the Z-axis acceleration sensor (4) is used for acquiring the Z-axis acceleration of the tire (7);
the tire pressure monitoring system comprises an X-axis acceleration sensor (2), wherein the X-axis acceleration sensor (2) is used for monitoring the X-axis acceleration of a tire (7) and is connected with an ADC (analog to digital converter) sampling interface (5), so that the tire pressure monitoring sensor (1) acquires the X-axis acceleration of the tire (7); and
the battery (3), tire pressure monitoring sensor (1) and X axle acceleration sensor (2) are connected in battery (3) for the power supply of tire pressure monitoring sensor (1) and X axle acceleration sensor (2).
2. The tire pressure sensor detection system according to claim 1, wherein a radio frequency transmission module (6) is further provided inside the tire pressure monitoring sensor (1).
3. The tire pressure sensor detecting system according to claim 1 or 2, wherein the tire pressure monitoring sensors (1) in the left and right tires (7) of the vehicle are installed in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022006861.4U CN213035604U (en) | 2020-09-14 | 2020-09-14 | Tire pressure sensor detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022006861.4U CN213035604U (en) | 2020-09-14 | 2020-09-14 | Tire pressure sensor detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213035604U true CN213035604U (en) | 2021-04-23 |
Family
ID=75534843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022006861.4U Expired - Fee Related CN213035604U (en) | 2020-09-14 | 2020-09-14 | Tire pressure sensor detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213035604U (en) |
-
2020
- 2020-09-14 CN CN202022006861.4U patent/CN213035604U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210423 |