Automatic door sensor device

摘要

There is provided an automatic door sensor device (1) capable of preventing a door (3) which is transitioning from an open position to a closed position from being erroneously detected as an object by temporarily changing a detection area (A, C2, C3). The automatic door sensor device (1) includes a doorway area sensor (7a) that detects the presence of an object in a doorway area (B) which includes at least a portion of an area defined by the path of a door (3), detectors (6, 7b) that detect the presence and/or the movement of an object in changeable detection areas (A, C2, C3), and a detection area changer (31) that changes the detection areas (A, C2, C3) when it is determined, by using the doorway area sensor (7a), that the door (3) is transitioning from an open position to a closed position.

主权项

1. An automatic door sensor device that is supported by a support member and detects an object to control opening and closing of a door, the device comprising:
a doorway area sensor to detect presence of an object in a doorway area which includes at least a portion of an area defined by a path of the door; a detector to detect presence or movement of an object in a changeable detection area; and a detection area changer to change the detection area when a determination is made, by using the doorway area sensor, that the door is transitioning from an open position to a closed position, wherein the detector includes a moving object sensor that detects movement of an object in a moving object detection area, and wherein the detection area changer includes a moving object detection area changer that changes the moving object detection area from a first moving object detection area to a second moving object detection area that is different from the first moving object detection area when the determination is made that the door is transitioning from the open position to the closed position, the first moving object detection area being allowed to be defined so as to overlap with the area on the path of the door, and the second moving object detection area being defined so as not to overlap with the area on the path of the door.