Method and device for testing communication reliability of tire pressure monitoring system
A technology of tire pressure monitoring system and testing method, which is applied in tire measurement, tire parts, transportation and packaging, and can solve the problems of long tire pressure information time period of the transmitter, inaccurate test results, and inaccurate test results. Achieve high test efficiency, save test time, and test comprehensive results
Inactive Publication Date: 2014-04-30
FORYOU GENERAL ELECTRONICS
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Problems solved by technology
In the test method of the prior art, it takes a long time to obtain the test result due to the long time period for the transmitter to normally send the tire pressure information, and the test result is inaccurate
In addition, when the transmitters of each wheel position are in different working states, the test results are inaccurate. For example, when the tire of a certain wheel position is in the low pressure alarm state, the frequency of sending tire pressure information by the corresponding transmitter of the tire is much higher than that of other normal tires. The frequency at which the transmitter sends tire pressure information, so that the receiver receives much more data corresponding to the transmitter in the alarm state than the data corresponding to other transmitters in the normal state, and the corresponding transmitter for the tire in the low pressure alarm state sends data to other tires in the normal working state Interference caused by the corresponding transmitter test
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[0036] like figure 1 As shown, the communication reliability testing method of the tire pressure monitoring system includes the following steps:
[0037] S1. The trigger sequentially triggers the transmitter corresponding to each tire to send test data and corresponding ID information under different static wheel position angles and different driving speed states. The test data is a preset specific test sequence number, for example, the transmitter sends 1-255 cycle sequence numbers in a period of 1 second. The step of sending the test data by the transmitter is specifically associating the test data with the ID information corresponding to the transmitter before sending it.
[0038] S2. The receiver receives the test data sent by each transmitter and its corresponding ID information, and detects the signal strength of the test data; corresponds the received test data, the ID information corresponding to the received test data and the received test data The signal strength o...
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The invention relates to a method and a device for testing the communication reliability of a tire pressure monitoring system. The method comprises the following steps: sending testing data through triggering emitters corresponding to all tires; receiving testing data sent by all emitters by a receiver, forwarding the received testing data to a central processing unit; and determining the communication reliability of each emitter and the receiver by the central processing unit according to the received testing data. Compared with the prior art, the method for testing the communication reliability of the tire pressure monitoring system, provided by the invention, is high in testing efficiency, simple in operation and high in automation degree, and can be applied to the standing test of earlier-stage communication reliability of a tire pressure monitoring system product, the test of the communication reliability of the development stage, the detection of the communication reliability of the production stage, and the detection of the communication reliability of the client verification stage.
Description
technical field [0001] The invention relates to the technical field of tire pressure monitoring systems, in particular to a communication reliability testing method and device for the tire pressure monitoring system. Background technique [0002] Tire Pressure Monitoring System (TPMS, Tire Pressure Monitoring System) is a system that monitors the pressure, temperature, and voltage of vehicle tires in real time. It is convenient for drivers to know the pressure, temperature, etc. of each tire in real time. It can be solved in time to reduce traffic accidents caused by tire blowout and air leakage. [0003] The communication reliability of the tire pressure monitoring system is a very important performance index of the tire pressure monitoring system. In the early stage, development stage, production stage and customer verification stage of the tire pressure monitoring system product, it is necessary to test the communication reliability of the tire pressure monitoring system...
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IPC IPC(8): B60C23/02
Inventor 薛跃楠裴元方乔晓华黄潇榕廖国威
Owner FORYOU GENERAL ELECTRONICS
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