| 摘要 |
A moving body detection device includes an oscillation circuit, a transmitter, a receiver, a phase detection portion, a moving body determination portion, and a control portion. The control portion is configured to periodically switch between a halt mode of causing at least the transmitter and the phase detection portion to halt and a detection mode of causing the transmitter and the phase detection portion to operate. Also, the control portion is configured to, in the detection mode, determine whether or not the Doppler signal is outputted from the phase detection portion in a period from a point of time when a predetermined waiting time elapses from a start point of the detection mode until the detection mode ends. Then, the control portion is configured to, upon determining that the Doppler signal is outputted, extend the detection mode and cause the moving body determination portion to operate, and upon determining that the Doppler signal is not outputted, switch to the halt mode. |
