With the continuous upgrading of indoor positioning requirements for accuracy and security, UWB will become the next technology outlet after Bluetooth and WiFi

       UWB transmission speed can reach hundreds of megabits per second, which can be applied to point-to-point wireless high-speed data transmission in the future

       Radar sensor: different from the point-to-point communication of positioning technology, the radar sensor senses the change of the external environment by receiving the reflected pulse signal, and realizes the functions of existence detection, life body detection, situation perception, automobile short-range radar (instead of millimeter wave radar or ultrasonic sensor).