Automobile instrument detection circuit, automobile instrument detection system and automobile instrument detection method

Abstract

The invention discloses an automobile instrument detection circuit. The detection circuit comprises a main control module, a bus interface module, a Bluetooth module, a FLASH module and a wireless transceiver module, the bus interface module, the Bluetooth module, the FLASH module and the wireless transceiver module are respectively connected with the main control module. The invention further provides an automobile instrument detection system and a detection method thereof. Compared with the prior art, the detection circuit provided by the invention is high in pertinence and has good compatibility with an external instrument to be detected connected with the detection circuit; according to the detection system provided by the invention, specific data processing flows of various communication protocols are built in, so that the detection system can process test data according to corresponding communication protocol regulations while sending out a driving signal matched with an external instrument to be detected; according to the detection method provided by the invention, the external to-be-detected equipment is detected by a complete detection closed loop, so that the detection process is more independent and reliable, and the credibility of the obtained detection data is higher.

Description

technical field [0001] The invention belongs to the technical field of detection, in particular to an automobile instrument detection system compatible with various communication protocols. Background technique [0002] There are many types of on-board instruments, and different instruments often use different communication protocols to communicate with the automotive ECU or other equipment. Therefore, before the on-board instruments leave the factory, how to perform performance tests on each specific instrument of each type is a must for those skilled in the art. Right technical question. [0003] In the prior art, the corresponding test circuit, test system and corresponding test method are often set corresponding to a certain designated instrument, and after connecting the test circuit or test system and the instrument to be tested, the specified communication protocol is run to realize the test equipment and the tested instrument. Test the data interaction of the instru...

AI Technical Summary

Problems solved by technology

Different test equipment must be equipped separately and are not compatible with each other, which brings great difficulties to the production detection and fault analysis of vehicle instruments. In this technical field, it is urgent to develop a method that is compatible with multiple communication protocols and can separate different types of vehicle instruments. Make corresponding test equipment to cope with the production inspection and failure analysis of different instruments before leaving the factory or before installation

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