| 摘要 |
Provided is a door control device based on non-touch non-contact charging method, which is applied to a home automation system including an intercom for allowing communication between a visitor and an occupant. The door control device comprises an interior unit and an exterior unit located at inside and outside the door, respectively, without using electric wires. The interior unit includes a first converter for converting a first AC signal having a first frequency into a DC signal, a second converter for converting the DC signal into a second AC signal having a second frequency in which a predetermined control signal is inserted, and a primary transformer to which the second AC signal with the control signal is applied. The exterior unit includes a secondary transformer to which the second AC signal with the control signal from the primary transformer is applied as an induced current, a rectifier for separating the control signal from the signal provided from the secondary transformer, and simultaneously rectifying the same, a charger to which the rectified signal is provided, and a microprocessor to which the separated control signal is provided for analyzing the control signal and providing a door lock with a door open signal according to the analyzed result.
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