OBD (On-Board Diagnostic) device, peripheral terminal and OBD peripheral terminal expansion method and system

Abstract

The invention discloses an OBD (On-Board Diagnostic) device, a peripheral terminal and an OBD peripheral terminal expansion method and system. The OBD device comprises a connecting module, a first acquisition module, a diagnosis module and a display module, wherein the connecting module is used for establishing connection between the OBD device and the peripheral terminal when detecting a USB (Universal Serial Bus) connection signal of the peripheral terminal; the first acquisition module is used for acquiring vehicle data which are transmitted by the peripheral terminal based on USB connection; the diagnosis module is used for diagnosing the vehicle data to obtain a diagnosing result; the display module is used for displaying the diagnosing result. According to the OBD device, a complicated connection step is simplified when the peripheral terminal is expanded by the OBD device, and a medium for functional connection of the OBD device and the peripheral terminal is omitted, so that time consumed in a diagnosis process is shortened; the diagnosis efficiency of the peripheral terminal is improved and user experience is improved.

Description

technical field [0001] The present invention relates to the technical field of OBD devices, in particular to an OBD device, a peripheral terminal, an OBD extended peripheral terminal method and a system. Background technique [0002] In the prior art, the OBD (On-Board Diagnostic, ie on-board diagnostic system) device can diagnose various functions of the vehicle, and when it is necessary to perform some functional diagnosis that the OBD device itself does not have, the OBD device often needs to use other external Set up the function extension of the terminal to assist the realization. Generally, the peripheral terminal needs to be connected to the diagnostic equipment first, and then the OBD device is connected to the diagnostic equipment, so that the OBD device can complete the expansion of the peripheral terminal through the diagnostic equipment, so as to realize the vehicle data collected by the peripheral terminal. Functional diagnosis of the vehicle. However, this me...

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Problems solved by technology

[0003] The main purpose of the present invention is to provide an OBD device, peripheral terminal, method and system for extending the OBD peripheral terminal, aiming at solving the problem that the OBD device must be connected to the peripheral terminal on the diagnostic equipment in the process of expanding the peripheral terminal. Achieving expansion, leading to technical problems of inefficient diagnosis of peripheral terminals

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