| 摘要 |
PROBLEM TO BE SOLVED: To provide a solar battery unit-driven object detection system which can realize long distance detection while maintaining small battery capacity and generation capacity of a solar panel.SOLUTION: A reception unit 2 of a detection unit 3 includes a transmitter 30 that transmits a reception (light-receiving) level of an infrared beam to a transmission unit 1, and a demand signal output unit 26 that transmits to the transmission unit 1 a demand signal M to control the intensity of the infrared beam to be transmitted so that the reception level matches a specified value determined in advance. The transmission unit 1 includes an infrared beam (detection beam) intensity control unit 15 that controls, upon receipt of the demand signal M, the intensity of the infrared beam to be transmitted so that the reception level matches the specified value. A power source unit 31 is a solar battery unit including a solar panel and a charging medium that stores power from the solar panel. |
