CAN field bus-based brake signal acquisition device, acquisition system and vehicle control system

The utility model provides a CAN field bus-based brake signal acquisition device. The device comprises an acquisition end, a detection module connected with the acquisition end and an output end connected with the detection module, and the output end is connected with a CAN bus through a CAN node; the acquisition end is also connected with a brake signal line, and is used for receiving a signal sent by the brake signal line; one end of the brake signal line is connected with a brake command executing mechanism, the other end is connected with a brake signal lamp; the detection module is used for judging, analyzing and processing a signal received from the acquisition end, and when the signal is known as a brake signal by judging, analyzing and processing, the output end sends out the brake signal through the CAN bus. The utility model also provides a CAN field bus-based brake signal acquisition system and vehicle control system. The abovementioned brake signal acquisition device, the acquisition system and th