| 摘要 |
PURPOSE: A separable digital door lock and a wired networking system of a door camera are provided to communicate the digital door lock with the door camera through a wired home network, thereby always supplying power to the digital door lock and door camera from the home network. CONSTITUTION: A door phone(20) is able to be installed on an entrance door or a wall. The door phone is connected to a home network(40) with a cable. A digital door lock(30) opens and closes the entrance door. The digital door lock comprises a password receiving part receiving a password and a card receiving part. The home network receives a video signal of a door camera and supplies the video signal to a user. The home network supplies power to the digital door lock and digital door phone through electric wiring(55). A conducting metal device(50) is prepared as a cabled connection device with the digital door lock, door camera, and home network.
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