Anti-collision early warning method based on DSRC vehicle-to-vehicle communication technology

The invention provides an anti-collision early warning method based on a DSRC vehicle-to-vehicle communication technology. The anti-collision early warning method based on a DSRC vehicle-to-vehicle communication technology can calculate whether a risk of collision between two vehicles exists according to the position and the speed information of a personal vehicle, and the position and the speed information of other vehicles. For the anti-collision early warning method, vehicle communication is performed based on DSRC; each one of mutually communicating two vehicles carries a vehicle device; and the vehicle device sends the position and speed information of the personal vehicle and receives the position and speed information of other vehicles in the communication range. The anti-collision early warning method relies on the BSM (Base Safety Message) in a DSRC communication protocol, and is high in standardability; after promotion of the DSRC, the anti-collision early warning method can be applied widely and is suitable for a vehicle networking system for the future DSRC communication.