Vehicle failure remote diagnostic method based on in-vehicle information terminal

Abstract

The invention relates to a vehicle failure remote diagnostic method based on in-vehicle information terminal equipment, and belongs to the field of in-vehicle information failure diagnosis. The method comprises the following steps of: firstly, matching Bluetooth equipment and matching a tested vehicle: matching a Bluetooth module of an in-vehicle information terminal with a detection module after ELM327 Bluetooth detection equipment is connected with the tested vehicle, searching the tested vehicle after correct connection of the equipment, and selecting a responding vehicle model and matching the responding vehicle model with the tested vehicle; secondly, starting a detection program of the vehicle after successful matching, detecting one by one according to a serial number sequence of vehicle failure codes, and sending detection data to a center; and finally, performing processed data analysis by a central computer after the central computer receives the data, and sending a warning message to prompt a vehicle owner by the central computer if failure exists. By the method, the failure condition of the vehicle is remotely detected by a management center, and the state information of the vehicle is fed back to a user in real time.

Description

technical field [0001] The method relates to a vehicle fault remote diagnosis method based on vehicle-mounted information terminal equipment, and belongs to the field of vehicle-mounted information fault diagnosis. Background technique: [0002] For traditional vehicle fault detection methods, there are mainly the following deficiencies: [0003] 1. With the development of my country's automobile industry, there are more and more vehicles, and vehicle maintenance and maintenance are becoming more and more important. The traditional detection method is that when the vehicle has a fault alarm or abnormal situation, the user must drive the car to a professional vehicle Only professional equipment can be used in inspection field or auto repair shop to inspect vehicles, and the owner will not only spend a lot of inspection fees, but also delay a lot of time. [0004] 2. With the emergence of automotive consumer electronics products, many cars are now equipped with on-board comput...

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Problems solved by technology

[0003] 1. With the development of my country's automobile industry, there are more and more vehicles, and vehicle maintenance and maintenance are becoming more and more important. The traditional detection method is that when the vehicle has a fault alarm or abnormal situation, the user must drive the car to a professional vehicle In the inspection field or auto repair shop, only professional equipment can be used to inspect the vehicle. The owner will not only spend a lot of inspection fees, but also delay a lot of time.

[0004] 2. With the emergence of automotive consumer electronics products, many cars are now equipped with on-board computers, which have functions such as entertainment, navigation, reversing images, and wireless Internet access, but they do not provide vehicle fault detection and data transmission functions.

When the vehicle breaks down or is in an abnormal situation, the owner cannot accurately know the current condition of the vehicle, and cannot drive the car to the auto repair shop in time, except that the car itself has some alarm prompts. cause serious consequences

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