| 摘要 |
PURPOSE: A controller of an entrance door is provided to prevent the loss of electricity and to maximize the energy efficiency by preventing the unnecessary opening of the entrance door. CONSTITUTION: A user interface unit has a switch to generate an open request signal of an entrance door. A micro computer(120) outputs an opening/closing control signal of the entrance door according to a control command from a main control room. A logic circuit unit(140) multiplies a mode selection signal from the main control room, the opening/closing control signal by the control command logically. An output unit outputs a driving signal to an actuator by detecting the calculated result of the logic circuit unit. Thereby, the loss of electricity is minimized and the cooling/heating efficiency is maximized.
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