Patent ID: 11231496

Abstract:
Provided is a radar device and a rear seat detection method thereof, in which the method includes: (a) transmitting a radar signal in a form of a multi-channel high-speed FMCW to a periphery of the rear seat and receiving a signal reflected from a target by a transceiver; (b) detecting a motion of the passenger through a macro speed detection scheme by a signal processor; (c) detecting a change according to characteristics of the passenger through a micro speed detection scheme; and (d) determining, by a passenger detector, that the passenger is present on the rear seat when the motion or the change is detected in step (b) or step (c). Accordingly, a multi-channel high-speed FMCW radar waveform is employed to simultaneously detect the motion of the passenger detected through the macro speed detection scheme and a change caused by respiration of the passenger detected through the micro speed detection scheme, so that the passenger in the rear seat is accurately detected.