The software is written in high-level language (C, C++). The user interface (for time of the maintenance actions) was made under the software Visual C++.
The principle of detection is as follows
Detection when a person passes beyond a limit fixed by the software (configurable)
Detection when a person is hidden under materials (brutal absence)
Detection by overpopulation on the zone to be supervised
The images shown above,
are captures of screen, the people (a number and position) do not follow themselves
on these photographs