| 摘要 |
PROBLEM TO BE SOLVED: To surely detect a pedestrian standing near a door. SOLUTION: A sensor 8 forms a detecting area 10. The detecting area 10 contains an opening 5, in which doors 4a and 4b are opened and closed, on the inside, and has fixed depth in the passage direction of the opening 5. The detecting area 10 is constituted of the gathering of a plurality of small detecting areas arranged in a matrix shape. A control section 28 cannot detect small detecting areas 10 detecting the doors 4a and 4b in the small detecting areas with the closing movement of the doors 4a and 4b. |
