| 摘要 |
<p>Provided is a lighting automatic turning on/off apparatus, which automatically turns on/off lighting through pressure sensors installed at a chair in a given area. To this end, a lighting automatic turning on/off apparatus comprises: a pressure sensor which measures the pressure applied onto a chair which is placed in a given area, is turned off to disconnect power supply to lighting when the pressure is measured to be non-existent, and is turned on to connect a power supply to lighting when the pressure is being sensed to be existent; and a temporary returning timer which is connected to the pressure sensor through a parallel circuit and is turned off when the pressure sensor is turned off and turned on when the pressure sensor is turned on, wherein the temporary returning timer is turned on after a predetermined time is elapsed from the time when the pressures sensor is turned off. According to the present invention, the user can turn on lighting just by sitting on a chair, without using a switch, to experience enhanced convenience, and subsequently lighting turned on can be turned off automatically after a predetermined time after the user has stood up, thereby reducing unnecessary power consumption of a trou-de-loup or a submarine.</p> |
