| 摘要 |
In this detection system (200), two wireless devices (201) (wireless device (201A) and wireless device (201B)), each provided with a light emission sensor unit (203) and a light reception sensor unit (202), are installed so that the respective light emission sensor unit (203) and light reception sensor unit (202) face each other. The pair of wireless devices (201) are connected so as to be able to communicate wirelessly. The wireless devices (201) communicate wirelessly and are alternately switched between a light-emission-side device in which the light emission sensor unit (203) functions and the light reception sensor unit (202) stops functioning, and a light-reception-side device in which the light reception sensor unit (202) functions and the light emission sensor unit (203) stops functioning, so that one is actuated as a light-emission-side device, and the other as a light-reception-side device. A highly reliable detection system that can be continuously operated is thereby provided. |
