| 摘要 |
<p>The present invention relates to a door control system using a mobile communication network and a door control method using the same which increase security and convenience by installing a mobile phone exclusive for an external door and connecting a video call or a voice call through a mobile phone, an internet telephone or a wire telephone registered previously if a visitor pushes the number of a place to visit. The door control system performs door control by including: a power supply unit which supplies a voltage with a level required in each component by converting a commercial electricity; an internal switch which is installed in the door, and is for opening the door by being pushed by a user of a building where the door is installed; a door phone which is installed outside the door, performs a voice call or a video call to a mobile phone number of a wire telephone number registered by the building user in advance if an external visitor pushes a floor and a room number to visit, and performs door open control if a door open signal is received from a telephone terminal of the building user; and a locking device which is opened or closed according to the control of the door phone.</p> |
