| 摘要 |
<p>An automatic lighting switch for an infant and the disabled is provided to reduce a power consumption and prevent an accident by automatically switching on/off a lamp by an LED lighting and a human body detection sensor. An automatic lighting switch for an infant and the disabled includes an optical sensor detection unit(8), a switching circuit(9), a DC power supply unit(10), a high brightness LED unit(11), an infrared sensor control unit(12), a photo coupler(13), a lamp driving unit(14), and a timer and human body pause state checking unit(15). The optical sensor detection unit has a CdS cell optical sensor which supplies a power for an operation under a specific brightness. The switching circuit of DIAC and TRIAC is used as a switching element which supplies a DC power when an input signal is received by the Cds cell optical sensor detection unit. The DC power supply unit receives and rectifies an AC power supplied from an external part, and converts the rectified power into a DC power. The DC power supply unit supplies a required power. The high brightness LED unit has a push button switch having the high brightness LED unit. The infrared sensor control unit has a super conducting infrared sensor for a human body detection signal. The photo coupler performs a switching function to drive a lamp if a human body detection signal is inputted. The lamp driving unit switches on a lamp if Vcc voltage is applied to the lamp driving unit by the photo coupler. The timer and human body pause state checking unit detects a human body and switches on the lamp for a predetermined time or the human body pause state.</p> |
