| 摘要 |
A movement detection system is provided with a wireless terminal, and a movement detection device connectable to the wireless terminal via a wireless network such that the wireless terminal receives signals used for detection at a predetermined frequency from the movement detection device, and transmits verification signals in response to each of the detection signals. The movement detection device includes a measurement portion that measures the signal strength of the verification signals transmitted by the wireless terminal, and a detection portion that detects spatial movement of the wireless terminal based on the signal strength of the verification signals measured by the measurement portion. |
