| 摘要 |
At both sides of a pair of doors 10 L, 10 R, a pair of television cameras (two-dimensional image sensors) 18 A, 18 B for detecting a moving object, and a pair of spare infrared ray sensors 20 A, 20 B are provided. A central control unit 16 calculates the position and moving direction of moving object by image processing of outputs of television cameras 18 A, 18 B, and predicts the passing position of moving object on the vertical plane P when the moving object approaches, thereby calculating the target opening degree of a pair of doors 10 L, 10 R individually, and determines the target opening degree of doors in full closing when the moving object leaves away, and thus outputs move command signals to motor controllers 14 L, 14 R so that the pair of doors 10 L, 10 R may be set at the target opening degree.
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