Abstract
A security camera is the mainstream for building guard in night.
But there is a problem in a watch in the whole field in the building.
The view angle of 1 camera is small. Many cameras are needed to complement that. When there are a lot of cameras, people are unpleasant. When I make them do patrol guard in the building by a self-controlled mobile robot, it's effective. I take a picture by a camera of loading in a robot and send picture data to a PC for watches. The photography location of the intruder can be confirmed.