Views and suggestions on road lighting, energy saving and energy saving work in China
Under the lighting effect, the concept of lighting is saved. This concept is scientific and reasonable. This is one of the design ideas of road lighting systems in developed countries.
First, the status quo of China's street lighting
According to the survey, after 9:00 in the small cities of China, the big and medium-sized cities are almost empty on the road after midnight, even in the bustling cities like Beijing, Shanghai and Guangzhou. Pedestrians, vehicles. From this time until the 6 o'clock in the morning, the street lights are extinguished, and it is obviously unnecessary to maintain a high illumination on the road with low traffic flow. Urban public lighting accounts for 30% of China's lighting power consumption, about 43.9 billion kWh, calculated at an average electricity price of 0.65 yuan / kWh, and annual expenditure of 28.5 billion yuan.
Today, when the municipal expenses are extremely tight, most cities and regions in China have almost adopted the method of saving money by turning off the lights of the street lamps abandoned by Japan and other countries in the 1970s. The drawbacks are self-evident- - Not only caused uneven distribution of road illumination, but also buried hidden dangers to public security and traffic safety, and could not avoid the loss of street lamp life in the middle of the night. Therefore, it cannot be called energy saving in the true sense. Today, when developed countries are discussing what is the right level of illumination, our control method is too backward.
Since the 1990s, the construction of night lighting has become an important part of the construction of urban municipal facilities. The localities have also achieved corresponding results, but the general tensions in municipal expenses and the addition of night lighting have formed a great contradiction. Taking an open city in the coastal area as an example, a large number of street lamps were forced by financial stress after installation. They could not afford the heavy lighting and electricity expenses, and had to turn off nearly half of the lights. As a result, some of the newly installed street lamps were in the same shape in recent years, resulting in Waste in disguise.
How to make the street light shine, let the city light up, brighten the science, save energy and save money? The answer is: use intelligent light source to step down a voltage regulator and dimming technology.
Second, intelligent light source buck-regulation-dimming technology
1. What is the intelligent light source buck-regulation-dimming technology
Intelligent light source buck-regulation-dimming technology is an internationally popular all-digital intelligent street lamp energy-saving control technology. It fully considers the actual situation of urban road lighting. According to the visual theory in ergonomics, it adopts the optimal control method in modern cybernetics to realize the dynamic intelligent management of street lamp voltage and illuminance, namely TPO management (TIME/ PLACE/OCCASION). The basic idea of ​​this technology is to control the street lights to maintain a strong illumination during busy hours, close to midnight, and start automatic dimming. In the latter half of the night, when the car is scarce, control the street lights to maintain lower illumination (similar to the room). The dimmer of the lamp can be arbitrarily dimmed as needed). Its main advantage is that it greatly reduces power consumption while dimming, saving more than 30% of active power consumption.
First, the status quo of China's street lighting
According to the survey, after 9:00 in the small cities of China, the big and medium-sized cities are almost empty on the road after midnight, even in the bustling cities like Beijing, Shanghai and Guangzhou. Pedestrians, vehicles. From this time until the 6 o'clock in the morning, the street lights are extinguished, and it is obviously unnecessary to maintain a high illumination on the road with low traffic flow. Urban public lighting accounts for 30% of China's lighting power consumption, about 43.9 billion kWh, calculated at an average electricity price of 0.65 yuan / kWh, and annual expenditure of 28.5 billion yuan.
Today, when the municipal expenses are extremely tight, most cities and regions in China have almost adopted the method of saving money by turning off the lights of the street lamps abandoned by Japan and other countries in the 1970s. The drawbacks are self-evident- - Not only caused uneven distribution of road illumination, but also buried hidden dangers to public security and traffic safety, and could not avoid the loss of street lamp life in the middle of the night. Therefore, it cannot be called energy saving in the true sense. Today, when developed countries are discussing what is the right level of illumination, our control method is too backward.
Since the 1990s, the construction of night lighting has become an important part of the construction of urban municipal facilities. The localities have also achieved corresponding results, but the general tensions in municipal expenses and the addition of night lighting have formed a great contradiction. Taking an open city in the coastal area as an example, a large number of street lamps were forced by financial stress after installation. They could not afford the heavy lighting and electricity expenses, and had to turn off nearly half of the lights. As a result, some of the newly installed street lamps were in the same shape in recent years, resulting in Waste in disguise.
How to make the street light shine, let the city light up, brighten the science, save energy and save money? The answer is: use intelligent light source to step down a voltage regulator and dimming technology.
Second, intelligent light source buck-regulation-dimming technology
1. What is the intelligent light source buck-regulation-dimming technology
Intelligent light source buck-regulation-dimming technology is an internationally popular all-digital intelligent street lamp energy-saving control technology. It fully considers the actual situation of urban road lighting. According to the visual theory in ergonomics, it adopts the optimal control method in modern cybernetics to realize the dynamic intelligent management of street lamp voltage and illuminance, namely TPO management (TIME/ PLACE/OCCASION). The basic idea of ​​this technology is to control the street lights to maintain a strong illumination during busy hours, close to midnight, and start automatic dimming. In the latter half of the night, when the car is scarce, control the street lights to maintain lower illumination (similar to the room). The dimmer of the lamp can be arbitrarily dimmed as needed). Its main advantage is that it greatly reduces power consumption while dimming, saving more than 30% of active power consumption.
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