Nowadays, the use of intelligent control systems to reduce human error is one of the most popularresearch fields. Design and implementation of such controllers requires to actual knowledge of theenvironment conditions. Traffic lights as one of the inputs of intelligent control systems are significant.usually the traffic lights have the various physical structure. also, generally in image proces...

Although lighting systems powered by Photovoltaic (PV) cells have existed for many years, they are not widely used, especially in lighting for buildings, due to their high initial cost and low conversion efficiency. One of the technical challenges facing PV powered lighting systems has been how to use dc power generated by the PV module to energize common light sources that are designed to oper...

Rezumat Proiectarea asistată de calculator a sistemelor de iluminat realizează dimensionarea unor instalaţii noi de iluminat cât şi verificarea celor existente, atât pentru sistemele de iluminat interior cât şi pentru sistemele de iluminat exterior. În proiectarea realizată s-a utilizat programul dedicat DiaLux versiunea 4.11. Abstract Computer aided design of lighting systems made new installa...

A large portion of the commercial and industrial lighting systems currently in use was put in place between 1960 and 1990, according to statistics. The systems that are in place often rely on the use of manually controlled incandescent and standard fluorescent lighting with magnetic ballasts, or even mercury vapor systems. These types of lighting systems and lighting controls are generally less...

Emergency l ight ing systems are frequently employed as a required safety feature within business premises. These systems comprise essentially of a control circuit, a battery pack, a trickle charging circuit, and either an in-built incandescent lamp, or an inverter that will allow the battery supply to drive the existing fluorescent tubes. It is the latter version, and the requisite DC-AC inver...