Invaders Defensor Syste,

Invaders Defensor System

Tells you who is going to get close to your room.

Levis (Bingchen)

It will patrol around my room’s door in a slow rate with its distance sensor on. As distance sensor detects block(s) in front of it, it will stop and turn on its camera to take a picture. If a face is recognized by the computer program, it will emphasize the face and send me an alert.