| 摘要 |
<p>An outer AC power (S101) and voltage dropped by a transformer apply operation power to a battery charger and a CPU, and the battery charger charges a battery. The operation power applied to the CPU repeats opening and closing of a moving door by an object detection sensor, a wireless opening transmitter, and a safety sensor receiver through a motor operation unit. Here, if power is not supplied to the outer AC power due to power failure or a bimetal switch, power is converted into a battery, which is emergency power, and the battery power applies the operation power to the CPU to repeat opening and closing of the moving door by the object detection sensor, the wireless opening transmitter, and the safety sensor receiver through the motor operation unit. Meanwhile, if a short circuit occurs in the object detection sensor, the wireless opening transmitter, and the safety sensor receiver receiving power from a power output unit of an application device due to fire, a short circuit protector blocks the power output unit of the application device to protect the CPU, the moving door is normally operated to prevent spreading of fire and harmful smoke, thereby preventing casualties and property loss.</p> |
