Diagnostic device, diagnostic request processing method, and computer-readable storage medium

Abstract

The embodiment of the invention discloses a diagnosis device, a diagnosis request processing method and a computer storage medium. Among them, the diagnostic equipment includes: a controller module, a transceiver module and a connection control switch module; one end of the controller module is connected to the host computer, and the other end is connected to one end of the connection control switch module; the other end of the connection control switch module is connected to the transceiver One end of the module is connected, and the other end of the transceiver module is connected with the vehicle diagnostic system; the controller module receives the diagnosis request sent by the host computer, determines the first connection instruction according to the diagnosis request, and transmits the first connection instruction to the connection control switch module; The control switch module determines the target transceiver from the transceiver modules according to the first connection instruction, controls the target transceiver to conduct with the controller module, and after the conduction, the controller module transmits the diagnosis request to the vehicle diagnostic system through the target transceiver. The diagnostic equipment can support multiple CAN protocols, thereby improving the protocol compatibility of the diagnostic equipment.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a diagnosis device, a diagnosis request processing method and a computer-readable storage medium. Background technique [0002] Controller Area Network bus (Controller Area Network, CAN) is a serial communication protocol bus for real-time applications, which can solve the problem of data exchange between many measurement and control components in modern vehicles. The CAN protocol can be used for communication between various components in a car, replacing expensive and bulky distribution wiring harnesses. [0003] With the popularity of cars, car maintenance problems also follow. At present, most cars will be equipped with a car diagnostic system, which can record diagnostic data when the car fails. When maintenance personnel perform fault detection on automobiles, they usually select diagnostic equipment to obtain automobile diagnostic data from the automobile dia...

AI Technical Summary

Problems solved by technology

Therefore, there are cases where the CAN protocol supported by the diagnostic equipment is different from the CAN protocol supported by the automotive diagnostic system, resulting in the inability of the diagnostic equipment to perform CAN communication with the automotive diagnostic system, and unable to obtain automotive diagnostic data from the automotive diagnostic system.

It can be seen that the protocol compatibility of current diagnostic equipment is poor

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