Energy saving control of street lamps can save energy?
Street lamp wireless monitoring system: the "three remote" monitoring system is adopted, and the lighting monitoring system is composed of a microcomputer network system of the central dispatch room, a wireless communication system and a street lamp switch box and an intelligent terminal. According to the local time of sunrise and sunset and light value, a control method with time control and light control combination, automatic remote control on / off through the wireless channel, and can intelligently adjust the voltage, voltage, current, power and other field telemetry data, but the data was collected and analyzed, so as to judge the lamp operation.
Single lamp installed variable power ballast: this measure is to install a power ballast can transform in each high pressure sodium lamp, with the same, at 12 o'clock in the morning, on the road almost no vehicles and pedestrians in the low traffic roads still maintain a high intensity apparently is not necessary. But some roads are not suitable for the implementation of the night lights lit, then can use the variable power ballast, low in road traffic flow, appropriate to reduce the power of the bulb, the bulb 50% to 60% at rated power, when the lamp power while reducing from 40% to 50%, but the road illumination only reduced 30%. Can guarantee the road traffic safety requirements. But even in the midnight voltage increases when the overload phenomenon does not appear light bulb and ballast, which not only can save a lot of power, but also can prolong the service life of the bulb and ballast lamp, which saves a lot of maintenance costs.
Midnight lights: as the name suggests, in the evening when the amount of half the amount of light, only half of lighting to meet the requirements. As the voltage is proportional to the change with the load, after entering the middle of the night when the load is reduced, the voltage higher than when lights before midnight light, and at this time on the road, pedestrians and vehicles to reduce, put half the street lamp can meet the lighting requirements. The night lights have a variety of luminaire-distribution-style, many of the commonly used vibration rod.
The power consumption of street lighting also weakens the effect of landscape lighting on both sides of the road. Therefore, in accordance with the provisions in the design of "lighting design standard" City Road in luminance, uniformity of illuminance and combining the actual situation of site design, reasonable selection of light source, so as to meet the needs of the road and can meet the demand of average illumination, surface illumination uniformity requirements, maximize the utilization coefficient of lamps, in order to save the purpose of energy.
