| 摘要 |
<p>A system for opening an emergency gate includes a fire electricity line for interconnecting a remote fire electricity line terminal positioned at a point of the emergency gate to an emergency power source for supplying electricity; a management unit electrically connected to the fire electricity line for receiving a detect signal from an automatic detector to output a control signal for opening the emergency gate, then composing the control signal with a power line frequency to generate a power line signal, and then transmitting the control signal through the fire electricity line; and an automatic opening unit electrically connected to the remote fire electricity line terminal for dividing the control signal from the power line signal transmitted through the fire electricity line from the management unit and then outputting an operating signal to open the emergency gate according to the divided control signal.</p> |
