When someone is hiding in the vehicle, the heart of the hiding person will beat rhythmically, and the vibration will be transmitted to the suspension of the vehicle and the bottom of the carriage. By connecting the sensor and the measured vehicle, the vibration will be collected and transmitted back to the data analysis equipment through the data cable, and the analysis software will analyze it, The calculation range of the analysis software is accurately concentrated in the frequency range of heart beating. Based on this vibration analysis, whether someone exists can be clearly displayed on the display terminal, accompanied by an audible alarm. The working principle of dz03 Pro Series UAV reaction system is similar to that of previous generations. It will not destroy or damage the UAV. Its main working principle is to interfere with and block the flight control system and signal transmission system of the UAV, so that the UAV can realize vertical landing or automatic return. The single channel power of the fourth generation strike gun is greater and the interference distance is longer, It can achieve the strike effect more quickly and accurately.