For large-scale use of street lamp lighting of municipal engineering, how to better control the street lamp system is a very important problem, and street lamp lighting system in the history of the development of an important research topic. In street lamp lighting system development history, common major
the lights for the large-scale municipal engineering, how to better control the street lamp system is a very important problem, and street lamp system is an important research topic in the history of the development. In the development history of street lamp lighting system, common the main line of control, cascade control, single power control ( Single voltage device control) Control, single lamp, street lamp intelligent control system, etc. The line of control mode, also known as parallel control. Street lamp system is controlled by controlling a few power point or transformer switch lamp control power supply of 220 v. Its advantage is the point of failure affects only the power supply point within the street lamp. It can control multiple transformer lighting, at the same time to guarantee the consistency of the whole system. Line is very small. The disadvantage is that when the fault occurs, the power supply point other lamps do not light, when the bolt needs to take temporary measures. Cascade control is one of the longest and most mature street light control method, its technology is also the most mature. Its advantage is a power switch by the former at the end of a low voltage lighting control, control effect is easy to implement, control the lowest cost. Faults, however, is clear: fault near the level of control points, close ( Open) The greater the fault area of light; Series control power supply point only to one side; When there is no special transformer. Low voltage lighting circuit power supply radius is big, low voltage, gas discharge lamp, it is hard to start the next power switch is not closed properly. Single power control is to point to each power supply is equipped with a control device, independent control of street lamp switch lamp height. When the street lamp system is becoming more and more big, the overall control of street lamp becomes more and more difficult, this occurs. It can be divided into two main modes: single power control or single transformer control. Single lamp control is refers to the power supply without any control directly into the light, control requirements can be implemented on each lamp. With the rising popularity of the led street lamp, street lamp intelligent control system is becoming mature. Single light control and power control technology can be used. In large range, street lamp control system not only can control each lamp switch, can control each lamp brightness. At present, this system is more and more widely used in municipal management in the energy management system.