| 摘要 |
PURPOSE: An entrance-and-exit information transmission system using a digital door and a method for the same are provided to update the entrance-and-exit information in a real time. CONSTITUTION: A RF card is activated by the radio-wave of a RF card reader(56). The RF card reader transmits a card number, which is received from the RF card, to a manager. A control unit(50) verifies whether the received card number matches a registered number. An actuator(48) opens a door. An SMS module(51) sends a message for informing the state of the digital door to the manager.
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