| 摘要 |
PROBLEM TO BE SOLVED: To photograph a trespasser almost from right in front and to eliminate a waste of photography. SOLUTION: When a 1st sensor 13A detects the trespasser M, a camera 11 for photography and a video device 12 start operation and then when a 2nd sensor 13B detects the trespasser M, a light 10 for lighting is turned on.
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