| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an automatic door device capable of determining the occurrence of abnormality of a sensor means and informing it before opening a door to prevent the occurrence of obstacle in passing through the door. <P>SOLUTION: In this automatic door device, a control part 36 for controlling opening and closing operation of the door monitors outputs of a light receiving part 9b in accordance with the presence or absence of a light emitting signal while the door is closed by using the sensor means having a light emitting part 9a and the light receiving part 9b to detect a human body or the like caught in the door by shutting-off of the light emitting signal generated by the light emitting part 9a and determines that abnormality occurs if a light receiving signal generated by the light receiving part 9b is detected irrespective of the absence of the light emitting signal or the light receiving signal generated by the light receiving part 9b is not detected irrespective of the presence of the light emitting signal to inform the outside of the abnormality through an informing circuit 46. <P>COPYRIGHT: (C)2009,JPO&INPIT |
