| 摘要 |
PURPOSE: A door lock apparatus is provided to manage the existence of an intruder or a visitor outside of a door by displaying visitor approaching within a specific distance to an indoor resident after taking a video of the visitor, although a visitor does not press a chime bell to give notification to an indoor side by operating the chime bell. CONSTITUTION: A door lock(10) includes a first chime bell, a camera(20), and a motion sensor, and is installed outside. A monitoring device(20) includes a second chime bell, operates the first chime bell, displays operation of the camera, and selectively opens and closes a door. The monitoring device receives a video image taken by the camera when detecting motion outside by the motion sensor, does not operate the first chime bell installed outside, and solely operates the second chime bell installed indoor. |
