Ultrasonic crash-proof radar system and barrier positioning method thereof

The invention provides an ultrasonic crash-proof radar system and a barrier positioning method thereof, and relates to the field of automobile safety, for realizing the purposes of detecting blind area barriers according to barrier types and preventing wrongly determining the ground as a barrier. The system comprises an ultrasonic sensor, an echo processing unit, a barrier state determining module and a blind area information processing module. During work, the echo processing unit sends processed information to a display unit, the barrier state determining module identifies a barrier type, when echo information is not received and an obtained final radar detection distance is greater than a preset distance threshold, according to the barrier type determined by the barrier state determining module, the blind area information processing module obtains data used for display in the display unit by use of rotating speed information and the final radar detection distance. The system can perform the detection on th