Lighting e.g. public lighting, installation controlling process, involves introducing angular crepuscular time-lag of preprogrammed positions in astronomical calculation to increase/decrease lighting period based on desired period of year

摘要

The process involves executing an automated astronomical calculation in an astronomical clock program to determine the switching moments of lighting from limited angular values corresponding to the position of the sun with respect to the horizon. Angular crepuscular time-lag of preprogrammed positions is introduced in the calculation, so that the lighting period is increased or decreased based on a considered period of a year.