Data collecting system based on CAN bus

Abstract

The invention discloses a data collecting system based on a CAN bus. The data collecting system comprises a data center, a satellite positioning system and a data collecting terminal. The data collecting terminal comprises a microprocessor, a navigation signal receiving module, a CAN communication module, a wireless communication module, a display screen and a loudspeaker, wherein the navigation signal receiving module, the CAN communication module, the wireless communication module, the display screen and the loudspeaker are all electrically connected with the microprocessor. The navigation signal receiving module is used for receiving the signals of the satellite positioning system and transmitting the signals to the microprocessor. The CAN communication module is used for receiving the equipment signals on the CAN bus and transmitting the received equipment to the microprocessor. The wireless communication module is used for being in wireless communication with the data center. The display screen is used for displaying the equipment signals on the CAN bus and the instruction signals of the data center. The loudspeaker is used for broadcasting the equipment signals on the CAN bus and the instruction signals of the data center. The display screen and the loudspeaker of the data collecting system based on the CAN bus can display and broadcast the fault of the CAN bus and the instruction information of the data center in real time.

Description

technical field [0001] The invention relates to a data acquisition system based on CAN bus. Background technique [0002] When the vehicle is running, it will generate a large amount of working condition data, such as engine revolutions, vehicle speed, fuel consumption, oil temperature, oil pressure, brake pressure, exhaust pressure, and status information such as brakes, lights, and doors. It is difficult to find the real-time operation status of the vehicle only by experience and feeling during driving. Therefore, it is particularly important to install a vehicle-mounted electronic system on the vehicle to collect real-time data of the vehicle. The current vehicle-mounted electronic system is widely used. CAN (Controller Area Network, controller local network) bus. CAN bus belongs to the category of field bus. It is a serial communication network that effectively supports distributed control or real-time control. It is a multi-master bus, and the communication medium can ...

AI Technical Summary

Problems solved by technology

[0003] However, the current data acquisition system based on CAN bus, especially the vehicle data acquisition system, although it can collect various data during the operation of the vehicle, it cannot display and broadcast the real-time vehicle condition of the vehicle, and cannot display the instructions of the remote server. , so that the user cannot accurately understand the vehicle condition

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