A data processing method, system and related equipment

Abstract

The embodiment of the invention discloses a data processing method, system and related equipment. The method comprises the steps of a diagnosis device acquiring a diagnosis command for a current vehicle; the diagnosis device extracting a diagnosis mode carried in the diagnosis command, and processing the diagnosis command into a first diagnosis command and a second diagnosis command based on the diagnosis mode, transmitting the first diagnosis command and the second diagnosis command to a vehicle-mounted device through a double-channel transmission mode; a vehicle-mounted device processing thefirst diagnosis command and the second diagnosis command according to the diagnosis mode to obtain and execute a target command and generate a diagnosis result corresponding to the target command; the vehicle-mounted device returning the diagnosis result to the diagnosis device through a double-channel transmission mode; and the diagnosis device carrying out data processing on the diagnosis result based on the diagnosis mode. By means of the data transmission method and device, the reliability of data transmission can be ensured, and the data transmission efficiency can be improved.

Description

technical field [0001] The present invention relates to the field of computer application programs, in particular to a data processing method, system and related equipment. Background technique [0002] With the development of society and the advancement of science and technology, technologies such as electronic technology, automation technology and electronic computer technology play an extremely important role in the design and production of automobiles. On the one hand, the degree of automation of automobiles is getting higher and higher. It is more superior, and the operation is more convenient and flexible, but on the other hand, it also puts forward higher requirements for vehicle maintenance and testing, but the traditional manual monitoring can no longer meet the maintenance needs of new vehicles. In addition, based on traditional communication methods Fault detection methods are increasingly exposed to more deficiencies (for example, the reliability of the data tran...

AI Technical Summary

Problems solved by technology

However, before the diagnostic equipment obtains the fault code, the reliability of the diagnostic command sent by the diagnostic equipment during data transmission cannot be guaranteed

Because the ECU often uses redundancy check at this time to check the parameter information carried in the diagnostic command, so when the diagnostic device transmits the parameter information (for example, 1110) carried in the diagnostic command to the ECU through the channel , there may be distortion, which will cause the diagnostic command received by the ECU to be a distorted diagnostic command (for example, 1101). Since the values ​​before and after the redundancy check are equal, the ECU will read another diagnostic command according to the distorted diagnostic command. A DTC, which in turn reduces the reliability of the transmission of the diagnostic command corresponding to the DTC

[0004] In addition, in the process of data transmission, since there is a maximum limit on the transmission rate of symbols transmitted on the automobile bus, when the transmission rate exceeds the maximum limit, it will cause the instability of the transmitted data, which in turn will lead to data corruption, resulting in data loss. Resend, thus reducing the efficiency of data transmission

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