Control of LED street lamp brightness, color temperature and power density upper limit

LED street light technology is constantly improving. With its widespread use, the use of LED street lights determines the planning of its lighting system, which helps to better control the lighting range and scale, and can effectively Solve the many problems presented in how to foster, and promote the harmony and unity of the overall unsightly night view of the city. Generally, only need to control the brightness, color temperature and power density upper limit of LED street lights. In the implementation of urban lighting planning, the illuminance used by LED street lights should pay attention to the unified coordination of road lighting illuminance. The intensity of illuminance in key and non-key areas in the city is the scale of night scene lighting. Under the premise of functional illuminance in important urban areas, illuminance has been increased for commercial concentrated areas and urban main axis lines. For the color temperature of LED street lights, attention should be paid to the unified coordination of lighting tones, and the overall tone of the city should be yellow and white as the main tone. The power density distribution of urban key roads and non-key roads is a measure of night scene LED street lighting. The 1.25W/m² road is used to show the rich cultural characteristics of the historical and cultural features, and the upper limit of the power density is controlled at 0.88W/m2. In order to outline the urban traffic function axis and control the urban framework, a power density of 1.05W/m2 is used.