| 摘要 |
PURPOSE:To connect an auxiliary power supply with a receiving unit or a light fitting, by switching a relay to connect the auxiliary power supply when an earthquake is detected by an earthquake sensor. CONSTITUTION:An auxiliary power supply 16 is connected to a light fitting 14 or a TV 15 through a relay 19, and when the relay 19 is switched, a 100-volt AC current is supplied to a wiring 12. Then, the relay is switched when an earthquake sensor 18 detects an earthquake over a given level. When the relay 19 is switched, the light fitting or the TV 15 is supplied with electric power from the auxiliary power supply 16 through a wiring 12, the relay 19, and a wiring 13. In this way, just after the outbreak of earthquake the light fitting 14 is turned on, and the information can be obtained from the TV 15. The situation can be recognized immediately, and we can refuge promptly in safety. |
