The JY-PT09+JY-M750+JY-6731 system is a newly designed radar system that uses a short-range K-band millimeter-wave radar sensor system to monitor a distance of approximately 30 meters. It uses FMCW mode to accurately detect the distance, speed, and angle of moving targets with high ranging and speed measurement accuracy. The millimeter reversing radar system resolves the problem of blind spots in vehicles, enhancing vehicle safety and reducing the risk of blind spot collisions.