| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact and simply constructed toilet stool automatic washing system equipped with a human body detection sensor and a hand sensor. SOLUTION: A luminous electrical current is switched to a comparatively large substance or a comparatively small substance by a micro-computer 1, a transistor 23 and resistors 24, 25 and 26 to satisfy functions of both human body detection sensor and hand sensor. A photodiode 4, a light receiving processing 5 and a light emission diode 6 are used as shared components for both sensors.
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