Vehicle diagnosis method, device, equipment and system, and diagnosis connection equipment

Abstract

The embodiment of the invention relates to a vehicle diagnosis method, device, equipment and system, and diagnosis connection equipment. The vehicle diagnosis device comprises a first interface module, a first protocol conversion module and a first software interface module; wherein the first interface module is used for reading a user operation on the interface and transforming the operation intoa corresponding diagnostic instruction; the first protocol conversion module is used for transforming the diagnostic instruction into standard transmission data corresponding to the diagnostic instruction; and the first software interface module is used for transmitting the standard transmission data corresponding to the diagnostic instruction through a first communication unit. According to theembodiment of the invention, all or part of the protocol conversion of the physical layer and data link layer, which consumes memory resources and processor resources, is put in the vehicle diagnosisequipment for running, therefore, the diagnosis connection equipment only needs to run part protocol conversion of the physical layer and the data link layer or does not need to run the protocol conversion of the physical layer and data link layer. The requirements for hardware performance of the diagnosis connection equipment are reduced; and the hardware cost of the diagnosis connection equipment is saved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of automobiles, in particular to an automobile diagnostic method, device, equipment, system and diagnostic connection equipment. Background technique [0002] As an important means of transportation, automobiles have greatly improved the quality of human life. With the increasing importance of automobiles in human life, higher requirements are placed on the performance of automobiles. At present, the application of vehicle diagnostic systems for detecting vehicle faults and performance is becoming more and more extensive. It is mainly realized by diagnosing connection devices, such as VCI equipment (VehicleConnection Interface), connecting the vehicle network and PC-side diagnostic software. [0003] In the process of realizing the present invention, the inventors have found that there are at least the following problems in the related art: since a link protocol stack needs to be set in...

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Problems solved by technology

[0003] In the process of realizing the present invention, the inventors have found that there are at least the following problems in the related art: since a link protocol stack needs to be set in the diagnostic connection device to realize the conversion of link layer and physical layer data, the resource consumption of the main chip in the automotive diagnostic device is large. , so the performance requirements of the main chip are high, resulting in high hardware costs for diagnostic connection equipment

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