CN213565282U - Tire pressure monitoring device of commercial vehicle - Google Patents
Tire pressure monitoring device of commercial vehicle Download PDFInfo
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- CN213565282U CN213565282U CN202022415055.2U CN202022415055U CN213565282U CN 213565282 U CN213565282 U CN 213565282U CN 202022415055 U CN202022415055 U CN 202022415055U CN 213565282 U CN213565282 U CN 213565282U
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- trailer
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Abstract
The utility model relates to a tire pressure monitoring device of commercial vehicle, including the sensor node on receiver and each tire of trailer that are located the locomotive, the mutual network deployment forms the sensor group between all sensor nodes on each trailer, at least one sensor node in the said sensor group is regarded as the relay sensor node; the relay sensor node is connected with the receiver or the relay sensor node of the previous trailer in a short-distance wireless communication mode. The utility model discloses reduce extra trunk equipment and dropped into, and need not carry out the power cord to the trailer and arrange.
Description
Technical Field
The utility model relates to a tire pressure monitoring technology field especially relates to a tire pressure monitoring device of commercial car.
Background
At present, the length of a commercial vehicle with a trailer is long, particularly under the condition of hanging 3 trailers, the tire of a trailer at the rear part is far away from the vehicle head, the data of a tire pressure sensor is transmitted in a wireless mode, the reliable receiving of signals can not be ensured under the remote condition, therefore, a relay of a wireless signal needs to be arranged on each trailer, the received data of the tire pressure sensor on the trailer is forwarded to the relay of the previous trailer, the data are sequentially transmitted forwards and finally transmitted to a TPMS receiver at the vehicle head, and the data are transmitted to a display for displaying after being processed by the receiver. Such an arrangement increases the cost of the repeater and makes wiring of the power lines on the trailer difficult.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a tire pressure monitoring device of commercial car is provided, the cost of the tire pressure monitoring device of the commercial car of trailer is reduced.
The utility model provides a technical scheme that its technical problem adopted is: the tire pressure monitoring device of the commercial vehicle comprises a receiver positioned at a vehicle head and sensor nodes on each tire of a trailer, wherein all the sensor nodes on each trailer are mutually networked to form a sensor group, and at least one sensor node in the sensor group is used as a relay sensor node; the relay sensor node is connected with the receiver or the relay sensor node of the previous trailer in a short-distance wireless communication mode.
The sensor node comprises a sensor, a wireless transmission chip, a memory and a processor; the sensor is used for detecting the tire pressure and/or temperature of the tire; the processor is used for controlling the sensor and the wireless transmission chip to work; the memory stores the tire pressure and/or temperature uploaded by other sensor nodes or the signals of the relay sensor node of the next trailer when the sensor node is used as the relay sensor node; the wireless transmission chip is used for uploading the detected tire pressure and/or temperature of the tire and the content stored in the memory.
The wireless transmission chip is a Bluetooth transmission chip.
The sensor nodes are mutually networked through a BLE protocol.
The wireless transmission chip of the relay sensor node is also used for uploading the identification signal of the relay sensor node.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model discloses utilize bluetooth two-way communication function with tire pressure sensor self as repeater, reduced extra repeater and dropped into, and need not carry out the power cord to the trailer and arrange.
Drawings
FIG. 1 is a schematic view of a single trailer tire in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a sensor node in an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The utility model discloses an embodiment relates to a tire pressure monitoring device of commercial car, including the sensor node on receiver and the trailer tire that is located the locomotive, the mutual network deployment forms the sensor group between all sensor nodes on each trailer, have at least one sensor node as relaying sensor node in the sensor group; the relay sensor node is connected with the receiver or the relay sensor node of the previous trailer in a short-distance wireless communication mode.
Take a vehicle with 3 trailers as an example:
first, for a single trailer, there is typically a set of 12 tires at the trailer end, as shown in fig. 1, with each sensor node having a different ID, such as 0xF 3260105; the 1# tire pressure sensor node is set as the relay sensor node, and the IDs and the corresponding positional relationships of the remaining 11 tire pressure sensor nodes are transmitted to the 1# tire pressure sensor node through a low frequency signal (125kHz) or a BLE signal. And adjusting the working mode of the 1# tire pressure sensor node by configuring the relay sensor node.
In this embodiment, as shown in fig. 2, the sensor node includes a sensor, a wireless transmission chip, a memory, and a processor; the sensor is used for detecting the tire pressure and/or temperature of the tire; the processor is used for controlling the sensor and the wireless transmission chip to work; the memory stores the tire pressure and/or temperature uploaded by other sensor nodes or the signals of the relay sensor node of the next trailer when the sensor node is used as the relay sensor node; the wireless transmission chip is used for uploading the detected tire pressure and/or temperature of the tire and the content stored in the memory. Wherein, wireless transmission chip is bluetooth transmission chip, and the treater can be realized through the singlechip.
After the 1# tire pressure sensor node is configured as a relay sensor node, when signals of other tire pressure sensor nodes in the current wheel set are received, if the pressure of the corresponding tire changes, information such as the corresponding tire group (namely, the trailer number), the corresponding tire position, the tire pressure of the tire, the temperature in the tire and the like is sent out through a BLE signal immediately.
Then, from the perspective of the whole vehicle, the receiver on the vehicle head needs to set the number of trailers so as to adjust the display and receiving data strategy, and needs to set the ID of the relay sensor node of the trailer 1 so as to receive the information sent by the relay sensor node.
The repeater sensor node of the trailer 1 is set to make sure that the trailer in which the node is located is the trailer 1 (used for forwarding the tire group (trailer number)) in the data; and then writing the ID of the relay sensor node of the trailer 2 into the relay sensor node of the trailer 1 (for confirming which relay sensor node is required to forward the information sent by the relay sensor node).
Setting the relay sensor node of the trailer 2 to make sure that the trailer is the trailer 2; and then writing the ID of the relay sensor node of the trailer 3 into the relay sensor node of the trailer 2.
Finally, the relay sensor node of the trailer 3 is set to make it clear that the trailer in which it is located is the trailer 3.
After the setting is finished, the working mode is as follows:
the tire pressure sensor node which is not used as the relay sensor node periodically detects information such as tire pressure, temperature and the like under the control of the processor, and sends the detected information by using a BLE signal through the wireless transmission chip.
The tire pressure sensor node serving as the relay sensor node still needs to periodically detect information such as tire pressure, temperature and the like of a tire where the tire is located under the control of the processor, simultaneously receives signals of other tire pressure sensor nodes or relay sensor nodes of a rear group of trailers, stores the received information, and immediately sends the information of the corresponding tire through a wireless transmission chip by adopting a BLE signal when any one of the received or collected information such as tire pressure, temperature and the like of the tire where the tire is located changes. Information content includes, but is not limited to: sensor self ID, relay sensor flag, tire group (trailer number), corresponding tire location, tire information (tire pressure, temperature, etc.).
The receiver on the vehicle head needs to receive signals of the tire pressure sensor nodes on the vehicle, and additionally needs to receive information sent by the relay sensor nodes of the trailer 1.
The data transmission mode among the relay sensors is as follows: a head receiver receives data of a relay sensor node of the trailer 1; the trailer 1 relay sensor node receives and forwards data (data of the trailer 2 or the trailer 3) sent by the trailer 2 relay sensor node; the trailer 2 relay sensor node receives and forwards data sent by the trailer 3 relay sensor node.
Because the distances between the relay sensor node of the next trailer and the relay sensor nodes of the other tires of the trailer are larger than the distances between the relay sensor node of the trailer, the embodiment can also identify the relay sensor node through the signal strength. For example: by receiving the signal strength of each sensor node by the head receiver, since the relay sensor node of the trailer 1 is farthest from the receiver, the receiver can use the sensor node with the lowest signal strength as the relay sensor node of the trailer 1, so as to identify the ID of the relay sensor node of the trailer 1, and send successful identification information to the relay sensor node of the trailer 1 by the BLE signal. After receiving the identification confirmation information, the relay sensor node of the trailer 1 starts to identify the ID of the relay sensor node of the trailer 2 in the same manner, and after successful identification, sends the identification success information to the relay sensor node of the trailer 2. Likewise, trailer 2 again identifies the ID of the relay sensor node of trailer 3 in this manner, and so on.
It is not difficult to discover, the utility model discloses utilize bluetooth two-way communication function with tire pressure sensor self as repeater, reduced extra repeater and dropped into, and need not carry out the power cord to the trailer and arrange.
Claims (5)
1. A tire pressure monitoring device of a commercial vehicle comprises a receiver positioned on a vehicle head and sensor nodes on each tire of a trailer, and is characterized in that all the sensor nodes on each trailer are mutually networked to form a sensor group, and at least one sensor node in the sensor group is used as a relay sensor node; the relay sensor node is connected with the receiver or the relay sensor node of the previous trailer in a short-distance wireless communication mode.
2. The tire pressure monitoring device of a commercial vehicle according to claim 1, wherein the sensor node includes a sensor, a wireless transmission chip, a memory, and a processor; the sensor is used for detecting the tire pressure and/or temperature of the tire; the processor is used for controlling the sensor and the wireless transmission chip to work; the memory stores the tire pressure and/or temperature uploaded by other sensor nodes or the signals of the relay sensor node of the next trailer when the sensor node is used as the relay sensor node; the wireless transmission chip is used for uploading the detected tire pressure and/or temperature of the tire and the content stored in the memory.
3. The tire pressure monitoring device of a commercial vehicle according to claim 2, wherein the wireless transmission chip is a bluetooth transmission chip.
4. The tire pressure monitoring device for a commercial vehicle according to claim 1, wherein the sensor nodes are networked with each other via a BLE protocol.
5. The tire pressure monitoring device of a commercial vehicle according to claim 2, wherein the wireless transmission chip of the relay sensor node is further configured to upload its own identification signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022415055.2U CN213565282U (en) | 2020-10-27 | 2020-10-27 | Tire pressure monitoring device of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022415055.2U CN213565282U (en) | 2020-10-27 | 2020-10-27 | Tire pressure monitoring device of commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213565282U true CN213565282U (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022415055.2U Active CN213565282U (en) | 2020-10-27 | 2020-10-27 | Tire pressure monitoring device of commercial vehicle |
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| CN (1) | CN213565282U (en) |
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2020
- 2020-10-27 CN CN202022415055.2U patent/CN213565282U/en active Active
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