A vehicle diagnostic device, system and method thereof

Abstract

The invention provides an automobile diagnosis system, comprising an automobile diagnosis device and an mobile phone. The automobile diagnosis device comprises an OBD connection wire, a CAN bus conversion module, a power supply management module, a data storage module, an MCU and a Bluetooth processing module. The invention provides a corresponding automobile diagnosis method. The automobile diagnosis method and system store and process data of a vehicle-mounted OBD through collecting vehicle-mounted OBD data, adopt Bluetooth technology to transmit stored data to a mobile phone which displays and stores the data in real time, compare data displayed by the mobile phone and data on an automobile instrument board with a state indication lamp on an automobile inner panel to calibrate and detect so as to effectively detect and analyze a condition of the automobile; in the meantime, intelligentized low power consumption management is realized through the power supply management module, and the power supply voltage of the Bluetooth processing module and the data storage module is shut down when no vehicle-mounted OBD data is detected so as to save the automobile electric energy.

Description

technical field [0001] The present invention relates to the technical field of vehicle-mounted Internet of Things and vehicle detection and calibration, and more specifically, relates to a vehicle diagnostic device, system and method thereof. Background technique [0002] With the development of the automobile industry and the continuous improvement of people's living standards, automobiles have become one of the indispensable means of transportation for residents. However, the number of automobile traffic accidents is also increasing. In order to avoid automobile traffic accidents, it is necessary to ensure the reliability of the instruments and meters of the automobile Safety and safety are becoming more and more important, and automotive instrument panels, signal indicators, etc., as windows for drivers to judge information such as vehicle speed, engine speed, lights, doors, fuel volume, etc., their accuracy directly affects The safety of the car during the entire driving...

AI Technical Summary

Problems solved by technology

[0003] However, the existing automotive diagnostic device is an important part of the on-board diagnostic system (On-Board Diagnostics, OBD), and the power source it uses is the battery power supply of the car. The power supply of the car battery, in serious cases, the car cannot be started, the power consumption is large, and it brings inconvenience to the car travel

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