The present invention discloses an
occupancy sensor based on Doppler technology and a detection method thereof. The occupation sensor comprises: a Doppler
radar detection module configured to emit radio-frequency signals, receive echo signals reflected back after encountering a target object, generate
Doppler frequency signals for describing motion of an object, and send the
Doppler frequency signals to a circuit control module; and a circuit control module is configured to determine receiving signals and determine whether there are people in a given space or not so as to control an indoor device. The detection method comprises: emitting the radio-frequency signals through the Doppler
radar detection module, receiving echo signals reflected back after encountering a target object, and generating the
Doppler frequency signals for describing motion of an object and sending the Doppler frequency signals to the circuit control module; and receiving signals output by the Doppler
radar detection module and performing determination through the circuit control module, and determining whether there are people or not in the given space so as to control the switching state of the indoor device. The detection range is enlarged, the timeliness and the accuracy of detection are ensured, and the
occupancy sensor based on Doppler technology and detection method thereof have wide application range.