| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique by which birds can be repelled definitely even when solar light can not be utilized. <P>SOLUTION: The bird-repellent device includes a picture-taking part for continuously taking a picture of a prescribed space region, a bird-detecting part for detecting the bird present in the prescribed space region by the image obtained by the picture-taking part, an output part for outputting a detection signal when the bird-detecting part detects the bird, and a near infrared-radiating part for radiating near infrared rays to a part or the whole of a blade of a rotary body having the blade by receiving the detection signal from the output part. <P>COPYRIGHT: (C)2011,JPO&INPIT |
