| 摘要 |
PURPOSE: A home security system using power line communication is provided to be established without establishing an additional data transmission line. CONSTITUTION: A door lock(10) opens and closes a front door, and a door camera(20) photographs a visitor. A monitoring camera(30) photographs a field situation, and a home server(40) includes a digital video recorder. The digital video recorder stores the image information of the door camera and the monitoring camera in a digital format. A display(50) is connected to a home server and visually outputs the image information.
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