Car fault diagnosis remote alarming system and method

Abstract

The invention discloses car fault diagnosis remote alarming system and method. The car fault diagnosis remote alarming system comprises a vehicle-mounted fault diagnosis alarming device and a far end server; the vehicle-mounted fault diagnosis alarming device comprises a processor module, a CAN (Controller Area Network) bus communication module, a voltage comparison module, a wireless communication module and a display module; the processor module acquires fault signals in a switching-value mode, output by vehicle equipment, by the voltage comparison module, receives equipment fault signals on a CAN bus by the CAN bus communication module and controls the wireless communication module to communicate with the server wirelessly; and the display module is controlled by the processor module and displays the fault signals. The invention uses the vehicle-mounted fault diagnosis alarming device to acquire the fault information of all devices on a car, carries out real-time diagnosis and displays the fault signals when faults occur; and meanwhile, the invention transmits the fault signals to the far-end sever in the mode of wireless communication for storage so as to give an alarm to the server end and inform administrators at the server end to carry out processing in time.

Description

technical field [0001] The invention relates to a system and method for collecting fault alarm signals of various equipment on a vehicle and performing diagnosis and remote alarm. Background technique [0002] At present, more and more electronic devices are added to the car, and the types of car failures also increase accordingly. The existing fault detection method is that professionals carry special equipment to the car and connect it to the OBD (On-Board Diagnostics) through the socket. , On-vehicle automatic diagnosis system) to realize fault diagnosis on the K line of the diagnosis port, or collect through the CAN (Controller Area Network, controller local network) bus. Existing diagnostic methods have the following disadvantages: [0003] 1. Professional service personnel are required to go to the real vehicle, which is time-consuming and laborious. The collection of driving data requires specialized personnel to follow the vehicle for testing, and also needs to carr...

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Problems solved by technology

[0003] 1. Professional service personnel are required to go to the real vehicle, which is time-consuming and laborious. The collection of driving data requires specialized personnel to follow the vehicle for testing, and also needs to carry laptops, inverters and other related equipment;

[0004] 2. Less data is collected and the scope of diagnosis is limited. Special diagnostic equipment is required for engines, gearboxes, ABS (Anti-lock Braking System, anti-lock braking system), and the diagnostic equipment for one component cannot diagnose the faults of other equipment at the same time , and the compatibility is poor, often a set of diagnostic equipment can only diagnose the engine or parts of the same company;

[0005] 3. In order to diagnose the data of different automotive equipment, several different diagnostic tools are required in the same vehicle, but the dedicated collection and diagnostic tools are expensive, and it is impossible to install them on every vehicle, and it is impossible to collect data every day

[0006] For some car failures, some existing systems can give certain warnings, but they often fail to attract the driver's attention. In addition, because the driver's understanding of car performance and maintenance capabilities are uneven, sometimes it is not easy to judge the cause of the failure. Failure to judge the type of fault and eliminate the fault in time, resulting in increased vehicle faults, increased wear, or damage to other related components

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