| 摘要 |
A home door open control device is provided to minimize the power required for opening the door by sensing the action of user without nearing operation. In a home door open control device(200), a high frequency communications unit transmits the activated high frequency signal after responding to door open ready signal. In case that the wireless answering signal responded to the high frequency signal is generated from the high frequency key in the first frequency wideband, a high frequency module for receiving the signal of the second frequency band higher than that of the first frequency wideband is activated and receives door open request data generated in the second frequency band is generated from the high frequency key. An authentication control unit determines whether the received door open request data is identical to the registered authentication data or not and transmits the door open signal for releasing the locking the door when the open request data and registered authentication data are identical.
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