CN108357307A - Code learning method of tire pressure detection system - Google Patents

Abstract

A code learning method of a tire pressure detection system can reduce the risk of code learning errors and is convenient for users to set the code. The code learning method of the tire pressure detection system is that a code learning device sends a trigger data to a tire pressure detector, wherein the trigger data comprises a trigger instruction and a wheel number; after the tire pressure detector is triggered, the tire number and the identifier of the tire pressure detector are compiled into a learning code and are transmitted back to the decoder, and the decoder transmits the learning code transmitted back by each tire pressure detector to a receiving host computer, so that the receiving host computer establishes the relative relationship between each tire pressure detector and the tire.

Description

Learning code method of tire pressure detection system

technical field

The invention relates to the code learning setting of a tire pressure detector; in particular, it refers to a code learning method of a tire pressure detection system.

Background technique

Vehicles are the most important means of transportation for modern people. In order to improve the safety of drivers and other passers-by, most vehicles are equipped with tire pressure monitors to avoid traffic accidents caused by excessive or insufficient tire pressure.

The current code learning method of the tire pressure detection system is to make the receiving host on the car enter the learning mode, and then place the code learning device next to the tire designated by the receiving host and send a trigger data. After receiving the trigger data, the tire pressure detector will Send the identifier of the tire pressure detector to the receiving host, and the receiving host will specify the next tire for setting after receiving the identifier of the tire pressure detector. This operation is repeated until the receiving host receives the transmitted identifiers returned by all tire pressure detectors, that is, the setting of the tire pressure detection system is completed.

However, this learning method causes a lot of inconvenience to the user in actual operation. First, the user needs to repeatedly enter the car to confirm the tire designated by the receiving host, and then go outside the car to place the code learning device next to the designated tire and send the trigger data to complete the sending of the trigger data. After that, it is still necessary to return to the car to confirm whether the receiving host has indeed received the identifier returned by the tire pressure detector. In addition, the distance between the tire pressure detector and the receiving host is far greater than the distance between the code learning device and the tire pressure detector. The receiving host often cannot receive the identifier sent by the tire pressure detector, causing the user to repeatedly perform the same operation. Steps, mind-consuming. Furthermore, since the trigger sequence is specified by the receiving host, if the wrong tire is triggered during the setting, the function of correctly monitoring the tire pressure cannot be achieved, and when an emergency occurs, the problem with the tire in question cannot be eliminated immediately.

In order to solve the above problems, another method of learning codes was born. Select the tire to be set by operating the code learning device and send the trigger data. After the tire pressure detector is triggered, it will send the identifier of the tire pressure detector to the code learning device. The detector identifier is compiled into a learning code, and the operation is repeated until all tires are set by the code learning device, and then the learning code is sent to the receiving host.

Although this method solves the above-mentioned problems, the code learning device needs to compile and learn codes with a plurality of wheel numbers and a plurality of tire pressure detector identifiers, and each learning code contains corresponding wheel numbers and tire pressure detector identifiers, which is easy Cause the code learner to be overloaded and cause errors in the coding process, causing the receiving host to learn wrong codes.

Contents of the invention

In view of this, the object of the present invention is to provide a learning code method for a tire pressure detection system, which can reduce the risk of learning code errors and facilitate users to set learning codes.

In order to achieve the above object, the present invention provides a code learning method for a tire pressure detection system, which is applied to a vehicle, the vehicle has a plurality of tires, each tire is provided with a tire pressure detector, and the vehicle is equipped with a receiving host , the code learning method includes the following steps: A, providing a code learning device, the code learning device includes a plurality of position buttons, and these position buttons correspond to the positions of the tires of the vehicle; B, moving the code learning device C. Click the position button corresponding to the tire that is close to the tire in step B to send a trigger signal to the tire pressure detector corresponding to the tire, the trigger signal includes a trigger instruction and the wheel number of the corresponding tire; D. After the tire pressure detector in the tire receives the trigger instruction, the tire pressure detector will contain the wheel number and the data corresponding to the identifier of the tire pressure detector Compile it into a learning code and send it back to the code learning device; E. After the code learning device receives the learning code, store the learning code in the code learning device; F. Operate the code learning device to send The learning code is given to the receiving host.

It also includes before executing step F: repeatedly executing step B to step E, and when step B is executed again, moving the code learning device close to another tire of the vehicle; until the tire pressure detector in each tire After all are sent back to the learning code corresponding to the code learning device, step F is continued.

Wherein the code learning device includes a display unit for displaying the code learning status of each tire pressure detector; in step E, after the code learning device receives the learning code corresponding to a tire pressure detector of the tire, The display unit displays the information that the tire pressure detector corresponding to the tire has sent back the learning code.

In step E, when the learning code device receives the learning code, it includes: confirming whether the wheel number in the learning code matches the wheel number in the trigger signal, and if they match, storing the learning code in the learning code device, otherwise it will not be stored.

Wherein the receiving host has a learning mode and a general mode, when the receiving host enters the learning mode, it is used to receive the learning code sent by the code learning device, and when the receiving host enters the normal mode, it is used to receive each The tire information corresponding to the tire transmitted by the tire pressure detector; before step F, operate the receiving host to enter the learning mode, and then continue to execute step F.

Wherein the code learner sends the trigger signal with a low frequency signal.

Wherein the code learning device sends the learning code with a high-frequency signal.

Wherein the tire pressure detector sends the learning code with a high frequency signal.

The effect of the present invention is that the code learning order of the tire pressure detector can be selected according to the needs of the user, reducing the trouble for the user to frequently enter and exit the car to confirm the specified order; after each tire pressure detector is triggered, the wheel number and tire pressure The identifier of the detector is compiled into a learning code and then sent back to the code learner, reducing the possibility of wrong compilation when the code learner processes too much data.

Description of drawings

Fig. 1 is a tire pressure detection system according to the first preferred embodiment of the present invention.

FIG. 2 is a schematic diagram of block functions of the above-mentioned preferred embodiment.

Fig. 3 is a flowchart of the operation setting of the above-mentioned preferred embodiment.

Fig. 4 is a tire pressure detection system according to the second preferred embodiment of the present invention.

FIG. 5 is a schematic diagram of block functions of the above-mentioned preferred embodiment.

【Symbol Description】

[this invention]

1 vehicle

1a tire 11a left front tire 12a right front tire

13a Left rear tire 14a Right rear tire

10 Tire pressure detection system

12, 121, 122, 123, 124 tire pressure detector

14 receiving host

20, 20' code learner

21 Operation interface 211, 212, 213, 214 position buttons

215 Transmitting button 22 Microprocessor 23 Low frequency transmitting unit

24 receiving unit 25 storage unit 26 high frequency transmitting unit

27 Display unit 271, 272, 273, 274 Display bulb

Detailed ways

In order to illustrate the present invention more clearly, a preferred embodiment and accompanying drawings are given in detail as follows. Please refer to FIG. 1 , which is a tire pressure detection system 10 and a code learning device 20 applied to the code learning method of the tire pressure detection system according to a preferred embodiment of the present invention.

The tire pressure detection system 10 is set on a vehicle 1 and includes a plurality of tire pressure detectors 12 and a receiving host 14. These tire pressure detectors 12 are installed in different tires 1a of the vehicle 1, for example: A pressure detector 121 is located in the left front tire 11a, a tire pressure detector 122 is located in the right front tire 12a, a tire pressure detector 123 is located in the left rear tire 13a, and a tire pressure detector 124 is located in the right rear tire 14a. The receiving host 14 is installed inside the vehicle 1. The receiving host 14 has a learning mode and a general mode. When the receiving host 14 enters the learning mode, it is used to receive the data transmitted by the encoder 20; when the receiving host 14 enters the normal mode, it is used to Receive the tire information of the corresponding tire 1a transmitted by each tire pressure detector 12, for example: the tire pressure detector 121 returns the tire information of the left front tire 11a.

Please refer to FIG. 1 and FIG. 2 , the encoder 20 includes an operation interface 21 , a microprocessor 22 , a low-frequency transmitting unit 23 , a receiving unit 24 , a storage unit 25 and a high-frequency transmitting unit 26 . The operation interface 21 includes a plurality of position buttons representing each tire 1a and a launch button. In this embodiment, the encoder 20 has four position keys 211, 212, 213, 214 and a launch key 215; the position key 211 represents the left front tire 11a, the position key 212 represents the right front tire 12a, and the position key 213 represents the left rear The tire 13a, and the position button 214 represent the right rear tire 14a. The microprocessor 22 is electrically connected with the operation interface 21, the low-frequency transmitting unit 23, the receiving unit 24, the storage unit 25, and the high-frequency transmitting unit 26, and its functions and effects will be described later.

Please cooperate as shown in Fig. 3, the code learning method of the tire pressure detection system 10 of the first preferred embodiment of the present invention is:

A. A code learning device 20 is provided.

B. Move the code learning device 20 so that the code learning device 20 is close to one of the tires 1a.

C. Click the position button representing the tire 1a to send a trigger signal to the tire pressure detector 12 corresponding to the tire 1a. The trigger signal includes a trigger command and a wheel number of the corresponding tire. For example: place the code learner 20 next to the left front tire 11a, and click the position button 211 representing the left front tire 11a. The operation interface 21 transmits an electric signal to the microprocessor 22, and the microprocessor 22 transmits a trigger signal including the wheel number of the tire 1a corresponding to the position key 211 and a trigger command through the low frequency transmitting unit 23.

The code learning device 20 transmits the trigger signal at a low frequency with a relatively short transmission distance. To ensure that the tire pressure detector 12 can receive the trigger signal, the code learning device 20 must be moved to be close to the tire 1a to be set, and the trigger signal is transmitted at a low frequency It is to ensure that the code learning device 20 only triggers the tire pressure detector 12 in one tire 1a at a time, for example: after pressing the position button 211 and sending a trigger signal including the wheel number representing the left front tire 11a, only the nearest neighbor learning code will be triggered 20 and is located in the tire pressure detector 121 in the left front tire 11a.

D. After the tire pressure detector 12 in the tire 1a receives the trigger signal, it is triggered by the trigger command in the trigger signal, compiles the data of the received wheel number and the identifier of the tire pressure detector 12 into a learning code, and Pass back to code learning device 20. For example: after the receiving unit 24 of the tire pressure detector 121 receives the trigger signal, it is triggered by the trigger command in the trigger signal, and the microprocessor 22 will receive the wheel number representing the left front tire 11a and compile the identifier of the tire pressure detector 121 As a learning code, the high-frequency transmitting unit 26 transmits the learning code to the code learning device 20 again. The learning code is transmitted by high-frequency transmission (RF radio frequency) with a relatively long distance, so as to ensure that the code learner 20 can receive the learning code.

E. After the receiving unit 24 of the code learning device 20 receives the learning code, the microprocessor 22 of the code learning device 20 stores the learning code in the storage unit 25 .

In addition, in order to further determine whether the learning code received by the code learning device 20 is correct, in one embodiment, when the code learning device 20 receives the learning code returned by the tire pressure detector 12, the code learning device 20 performs a confirmation step, that is, the code learning device 20 will confirm whether the wheel number in the received learning code matches the wheel number in the trigger signal sent by the code learning device 20 in step C, and if it matches, the code learning device 20 The microprocessor 22 stores the learning code in the storage unit 25 again; if it does not match, it will not store it, and can further prompt the received learning code to generate an error, and can require the user to re-execute step C, thereby sending a trigger signal again For the corresponding tire 1a.

The specific effects of the above-mentioned further confirmed steps are as follows: in the car factory, multiple operators often set the learning codes for the tire pressure detectors for multiple vehicles. The learning code transmitted by the detector is also very likely to receive the learning code transmitted by the tire pressure detector of other vehicles, resulting in an error in learning the code, and the wheel number in the received learning code and the wheel number sent out are confirmed by the code learning device. Whether the number matches or not can prevent the code learning device from storing the wrong wheel number, and greatly reduce the risk of code learning failure.

F. Operate the learning code device 20 to send the learning code to the receiving host 14 . Click the launch button 215 of the code learning device 20, and the microprocessor 22 receives the electric signal of the operation interface 21 to make the high-frequency transmitting unit 26 transmit the stored learning code to the receiving host 14. After the receiving host 14 receives and stores the learning code, It can identify the tire 1a corresponding to the data returned by each tire pressure detector 12, achieve the automatic positioning function of the tire 1a, and complete the code learning of the tire pressure detection system 10. The learning code transmitted by the code learner 20 and the tire information transmitted back to the receiving host 14 by the tire pressure detector 12 are also transmitted at high frequency (RF radio frequency) to ensure that the receiving host 14 can receive it.

In addition, in order to increase the code learning efficiency of the tire pressure detection system 10, in one embodiment, before performing step F, it also includes: repeatedly performing steps B to E, and when step B is performed again, moving the code learning device 20 Close to another tire 1a, for example: to trigger the tire pressure detector 121 in the left front tire 11a, then make the encoder 20 close to the right front tire 12a, left rear tire 13a or right rear tire 14a, to trigger the tire pressure of another tire 1a Tire pressure detector 12. The user can arbitrarily change the sequence of triggering the tires 1a until the code learner 20 receives the learning codes sent by each tire pressure detector 12, and then execute step F, which can reduce the number of times of sending the learning codes to the receiving host 14.

In another embodiment, the receiving host 14 further has a learning mode and a normal mode, wherein, when the receiving host 14 enters the learning mode, it is used to receive the data transmitted by the encoder 20; when the receiving host 14 enters the normal mode , used to receive the tire information of the corresponding tire 1a transmitted by each tire pressure detector 12, including tire pressure, temperature, etc., to monitor the use status of each tire; before performing step F, operate the receiving host 14 to enter the learning mode , and then proceed to step F.

When the user uses the code learning device 20 to trigger the tire pressure detector 12 in each tire 1a, he can specify the code learning sequence of the tire pressure detector 12 according to the user's needs, instead of following the tire 1a specified by the receiving host 14 to operate, It saves the user from the trouble of frequently entering and exiting the car to confirm the instructions of the receiving host 14, makes the code learning of the tire pressure detection system 10 more efficient, and avoids errors in the receiving host 14 learning codes caused by the user misreading the instructions.

When each tire pressure detector 12 is triggered, it compiles the received wheel number and the identifier of the tire pressure detector 12 into a learning code, and then sends it back to the code learning device 20, which can avoid the code learning device 20 from processing Too much data returned by the tire pressure detector 12 leads to compilation errors, reducing the risk of learning code errors.

When learning codes, the distance between the code learning device 20 and the tire pressure detector 12 is shorter than the distance between the tire pressure detector 12 and the receiving host 14, so the tire pressure detector 12 sends data to the code learning device 20. The interference received by the tire pressure detector 12 is much smaller than the interference received by the receiving host 14 when the data is sent by the tire pressure detector 12, and it can reduce the possibility of code learning errors or failure to receive data when the tire pressure detector 12 directly sends data to the receiving host 14 .

In this embodiment, the operation interface 21 includes a plurality of position buttons 211, 212, 213, 214 and a launch button 215, but it is not limited thereto. The operation interface can also be a touch screen, and the position buttons and the launch button are virtual buttons. , the same function can be achieved by clicking the virtual button to transmit the trigger signal and the learning code.

Please refer to Fig. 4 and Fig. 5, the tire pressure detection system 10 and a code learning device 20' used in the code learning method of the tire pressure detection system according to the second preferred embodiment of the present invention are disclosed, and the code learning device 20' is similar to The code learning device 20 of the above-mentioned first preferred embodiment is different in that: the code learning device 20' also includes a display unit 27, wherein the display unit 27 is electrically connected to the microprocessor 22, and the display unit 27 is used to display the corresponding tire. The tire pressure detector 12 of 1a has sent back the learning code information, and the user can directly confirm the learning code status of the tire pressure detector 12 through the display unit 27 .

In this embodiment, the display unit 27 includes four display light bulbs 271, 272, 273, 274 located beside the position buttons 211, 212, 213, 214 respectively, and displays the code learning status of the tire pressure detector 12 by changing the brightness of the display light bulbs. . For example: after triggering the tire pressure detector 121, the code learning device 20' successfully receives and stores the returned learning code, and the display bulb 271 next to the position button 211 changes from dark to bright, and the user can know that the triggering of the tire in the left front tire 11a has been completed. Tire pressure detector 121; if the learning code sent back by the tire pressure detector 121 is not received after clicking the position button 211 to send the trigger data, the display bulb 271 is flashing to remind the user of the tire pressure detector 121 in the left front tire 11a If the trigger is not successful, or the tire pressure detector 121 is successfully triggered but fails to send the learning code to the code learning device 20', the user needs to move the code learning device 20' close to the left front tire 11a, and then click the position button 211 again.

The user can know at a glance the code learning status of the tire pressure detector 12 in the tire 1a, reducing the possibility of code learning failure, and avoiding the waste of time caused by repeatedly triggering the tire pressure detector 12 that has completed the code learning. The display unit presents the information of the learning code returned by the tire pressure detector 12 in the corresponding tire 1s. The same effect can be achieved by changing or changing the display pattern to display the information of the learning code.

After the display unit 27 shows that each tire pressure detector 12 has sent back the information of the learning code, the transmitter button 215 of the code learning device 20 can be clicked, and the microprocessor 22 makes the high-frequency transmitting unit 26 transmit the information stored in the storage unit 25. The learning code is given to the receiving host 14, and the learning code of the tire pressure detection system 10 is completed after the receiving host 14 receives the learning code.

The above descriptions are only preferred feasible embodiments of the present invention, and all equivalent changes made by applying the description of the present invention and the scope of the patent application should be included in the scope of the patent of the present invention.

Claims (8)

1. A code learning method for a tire pressure detection system, characterized in that it is applied to a vehicle, the vehicle has a plurality of tires, each tire is respectively provided with a tire pressure detector, the vehicle is equipped with a receiving host, the learning The coding method includes the following steps: A. Provide a code learning device, the code learning device includes a plurality of position buttons, and these position buttons correspond to the positions of the tires of the vehicle; B. Move the encoder to approach one of the tires of the vehicle; C. Click the button corresponding to the position of the tire close to step B to send a trigger signal to the tire pressure detector corresponding to the tire. The trigger signal includes a trigger command and a wheel number of the corresponding tire; D. After the tire pressure detector in the tire receives the trigger command, the tire pressure detector compiles the data including the wheel number and the identifier corresponding to the tire pressure detector into a learning code and sends it back to the code learner; E. After the code learning device receives the learning code, store the learning code in the code learning device; F. Operate the code learning device to send the learning code to the receiving host. 2. The code learning method of the tire pressure detection system according to claim 1, wherein before performing step F, it further comprises: repeatedly performing steps B to E, and when performing step B again, moving the The code learning device is close to another tire of the vehicle; until the tire pressure detector in each tire sends back the learning code corresponding to the code learning device, then continue to execute step F. 3. The code learning method of the tire pressure detection system as claimed in claim 2, wherein the code learning device includes a display unit for displaying the code learning status of each tire pressure detector; in step E, in the learning code After the encoder receives the learning code corresponding to the tire pressure detector of the tire, the display unit displays the information that the tire pressure detector corresponding to the tire has returned the learning code. 4. The code learning method of the tire pressure detection system as claimed in claim 2, wherein the receiving host has a learning mode and a normal mode, and when the receiving host enters the learning mode, it is used to receive the code learning device sent The learning code, when the receiving host enters the general mode, is used to receive the tire information of the corresponding tires transmitted by each tire pressure detector; before performing step F, operate the receiving host to enter the learning mode, and then continue to execute steps F. 5. The code learning method of the tire pressure detection system according to claim 1, in step E, when the code learning device receives the learning code, it includes: confirming the wheel number in the learning code and the trigger signal Whether the wheel number matches, if it matches, the learning code is stored in the code learning device, otherwise it is not stored. 6. The code learning method of the tire pressure detection system according to claim 1, wherein the code learning device sends the trigger signal with a low frequency signal. 7. The code learning method of the tire pressure detection system according to claim 1, wherein the code learning device sends the learning code with a high frequency signal. 8. The code learning method of the tire pressure detection system as claimed in claim 1, wherein the tire pressure detector sends the learning code with a high frequency signal.