Patent ID: 9576456
Date: 2017-02-21
CPC Classifications: G01V,G08B,H02S,Y02E

Claim:
1. A solar battery-driven object detection system, the system comprising: a detection unit having a transmission unit that transmits a detection beam to a detection region and a reception unit that constantly receives the detection beam transmitted from the transmission unit and detects an object when the object intercepts the detection beam in the detection region; and a power source unit that supplies power to the detection unit, wherein the reception unit includes a transmitter that transmits a reception level of the detection beam to the transmission unit, and a demand signal output unit that transmits to the transmission unit a demand signal for controlling intensity of the detection beam corresponding to an environment to be transmitted so that the reception level matches a predetermined value capable of maintaining a detection capability for the environment, the transmission unit includes a detection beam intensity control unit that controls, upon receipt of the demand signal in an adverse environment, so as to increase the intensity of the detection beam to be transmitted so that the reception level matches the predetermined value, but to attenuate the intensity of the detection beam upon receipt of no demand signal, and the power source unit is a solar battery unit including a solar panel and a charging medium that stores power from the solar panel.