| 摘要 |
PROBLEM TO BE SOLVED: To provide the automatic door sensor which surely prevents the occurrence of erroneous actions caused by the noise of infra-red rays such as human passages, solar light and the change of mats in temperature. SOLUTION: It is so designed that infra-red rays from a plurality of the respective fields F1 through F12 of view, which is divided into a matrix shape, can be detected respectively by an array sensor 1, and the original detected signal of a human is thereby discriminated from the noise of infra-red rays caused by human passages, solar light and the change of mats in temperature by synthetically judging the detected signals from the respective fields of view by the use of the array sensor 1, so that the movement of the human can thereby be surely judged. |
