The intelligent "Wisdom in an Empty City" anti-burglar photo/sound control circuit

Published:2011/7/8 2:17:00 Author:Seven | Keyword: Wisdom in an Empty City, anti-burglar, photo/sound control circuit | From:SeekIC

In the storerooms without human duty or homes often without people, the experienced thieves often do this thing at after midnight. The control circuit can make sound and light after in 4-6h of darkness, the thieves don't know the real condition, so they won't take action. At daytime, the circuit is static, which is safe and energy-saving. See as the figure, it consists of the light control switch circuit, preset timer circuit, AC relay control circuit, music making circuit and power supply circuit, etc.



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