How strong is the energy saving ability of LED street lights?
When the lighting effect is basically the same, the LED street light saves about 70% energy than the typical high-pressure sodium lamp. Under the same average road illumination, the LED street light saves more than 65% of the energy. Take a section of a 17-meter long road that replaces the original 400W high-pressure sodium lamp with a total of 198 200W LED street lights in two directions as an example. After the transformation, the LED street lights can save about 996,000 yuan in electricity costs each year and save about 4.98 million yuan in five years ...
The energy saving ability of LED street lights has always been highly recognized, and because of its power increase, efficiency improvement, cost reduction and other factors, it is increasingly used in various types of lighting projects. However, are LED street lights really energy efficient?
Yitong Intelligent believes that although LED street lights have already achieved the ultimate energy saving in the performance of the light body, due to backward control measures, excessive lighting still causes a lot of energy waste every year. For example, ordinary LED street lights can only be switched on and off uniformly, that is to say, no matter what time of the road section is, or how much people / vehicle traffic, you can only choose to turn on the lights or turn them off. In addition, ordinary LED street lights cannot flexibly respond to changes in public lighting demand caused by sudden weather, seasonal changes, and other reasons. For example, when the light intensity caused by a sudden downpour changes drastically, the management department's operation of switching lights is usually delayed. More or less will also cause energy waste. The above problems can be solved perfectly by the intelligent street lights of the Internet of Things.
The intelligent street lamp of the Internet of Things comprehensively uses wireless communication technology, GIS geographic information technology and cloud computing, and relies on the intelligent system of street lamps to realize the intelligent management of street lamps.
How can IoT smart street lights further save energy?
The first is that thanks to the Internet of Things smart street lights support a more flexible way to turn on the lights. Similar to the principle that the mobile phone can switch the power saving mode and adjust the brightness, the IoT smart street light can set the "power saving" light-on mode through the management system. For example, the time period from 19:00 to 22:00 in the evening is when the city's road traffic / vehicle traffic is the highest and when the lighting requirements are the highest. The system can set all the street lights on / 100% brightness during this time. To meet the lighting needs; in the period of 00: 00-06: 00, there is no sound of pedestrians, there are fewer pedestrian vehicles, and the lighting needs are relatively low, you can set the street lights to single on / 50% brightness. The customized light-on mode can be switched automatically at regular intervals, without the need for manual switching by the duty staff, which is very convenient. The time-based and differentiated lighting strategy can maintain the minimum illumination (in accordance with national standards) during periods of low passenger / vehicle traffic. When the passenger / vehicle traffic is high, increase the illuminance of the lamp, which not only guarantees lighting requirements, but also saves power.
Secondly, for ordinary LED street lights that are difficult to cope with the difference in lighting requirements caused by special weather and seasonal changes, the intelligent street lights of the Internet of Things can also be perfectly solved. Similarly, similar to the automatic dimming of mobile phones based on ambient light, the intelligent street lights of the Internet of Things combined with light sensing technology can also realize light on / off and automatic dimming. For example, the system sets the automatic light-on lighting value to 65. When the street light senses that the ambient light level drops to 65, the lighting rule is automatically triggered, and the street light will automatically turn on according to a preset rule. Of course, it is also possible to flexibly adjust the street light brightness and single / double / full-on settings in response to different ambient light levels. For example, when the ambient light level is 65, the street light double-on / brightness is set to 75%; when the ambient light level is 35, the street light is fully-on / brightness 100%.
At this point, maybe everyone will be curious, is the intelligent street lamp of the Internet of Things a new type of light source? In fact, compared to ordinary street lights, the Internet of Things intelligent street lights only add wireless communication technology to achieve two-way communication with the management system. So the question is again, is it very complicated to add wireless communication to street lights? Is the cost high? It is true that there are many wireless communication technology transformation methods for street lights on the market, such as installing a communication controller on the lamp head, and connecting sensors and coordinators. Such a method requires disassembling and reinstalling the street lamp body, which is very troublesome to implement and wastes people's money. In fact, there are more convenient ways to transform without disassembling the lamp body. One of the intelligent lighting power supplies for the Internet of Things developed by Yitong Intelligent is one of them. You only need to replace the power supply to realize the upgrading of the street lights.
By installing the Yitong Intelligent Lighting Power Supply, the comprehensive energy saving rate of ordinary LED street lights can be increased by about 40%, and the comprehensive energy saving rate of traditional high-pressure sodium lamps can be increased by about 45% -56%. Based on a comprehensive calculation, it can easily save nearly half of the electricity bill every year.
If you have any inquiry about led light, please feel free to contact us--Shenzhen Riyueguanghua Technology Co., Ltd.
Contact Person: Mr. Hugh Hu
Tel: +86 136 8680 7553