Ten years of Led street lighting development

Recently, with the deepening of the construction of smart cities, a number of cities across the country have launched the "multi-pole integration" pilot, so that the street lighting industry media headlines, has become one of the community attention of the highest level of lighting lamps.In the past ten years, street lamps, which have witnessed the important development of modern lighting in China, have undergone tremendous changes in form, function and social and economic benefits.

Below, Bihui lighting will review the evolution of Chinese street lighting over the past ten years and explore the technological value it has brought to the innovative development of China's lighting industry.

Conscious of energy saving, street lamps usher in the LED light source replacement tide

In the past, high pressure sodium lamp with its high power, high brightness characteristics, has been acting as the main light source of street lamps.However, due to the high consumption of high pressure sodium lamp, short life and other shortcomings, the municipal department in the management of funds to bring a lot of burden, and its poor utilization of light energy, low light efficiency increasingly prominent problems, directly affect the visual perception of traffic participants on the road.

At the end of the 2000s and the beginning of the 2010s, driven by the national policies of "energy conservation and emission reduction", "thousands of thousands of thousands of thousands of" and other policies, LED light source replacement trend has also come. As a high-power street lamp in the lighting industry for many years, it has naturally become an important part of this trend.

Relevant statistics show that, compared with street lamps with the same power high-pressure sodium lamp light source, LED street lamps can save 40% to 80% of energy consumption;In terms of light color and road lighting effect, the color rendering index of the LED street lamp with cool color temperature is 45 ~ 55 higher than that of the traditional sodium light light source with warm color temperature. In addition, the LED light source is easier to form effective light, so that traffic participants can see the road conditions more clearly.In terms of the service life of the light source, compared with the high pressure sodium lamp for 1-2 years, the LED light source can be used for more than 10 years, making it a perfect substitute for the high pressure sodium light source in road lighting.

However, the LED street lamp seems to be perfect infinite, but at the beginning of its promotion, but let a lot of municipal engineering contractors put off, the reason is no he, with the price at the time, the same power, a set of high pressure sodium lamp street lamp head is about 1200 ~ 1500 yuan, and a set of LED street lamp head price is about 2000 ~ 5000 yuan.

LED street lamp installed on shenzhen airport highway

Because of this bottleneck, a collaborative model called Energy Management Contracting (EMC) has become popular in the procurement of LED streetlights.Follows the LED lighting the longer, the more energy saving effect, and the principle of return on investment is, the more obvious, guarantee by the government, LED street lamp manufacturing enterprises benefit from energy-saving benefit, energy-using units and energy conservation service company also according to the agreed percentage share of energy-saving benefit, the municipal engineering contractor in this mode can realize zero or less input, thus reduce the direct economic burden of purchasing the LED street lamp.

Besides, represented by frequently on the photoelectric LED street lamp manufacturers will also EMC mode combined with other flexible business model, production enterprises as both product and service providers, and financial institutions to give attention to two or morethings bridge with customers and manufacturers, users, and financial institutions in the LED street lamp in new clothes and cross-dressing project implementation to achieve maximum benefit and risk minimization, form a tripartite win-win situation.

After a series of application bottlenecks such as price, energy efficiency sharing were solved, in the first half of the 2010’s, the new LED street lamp installation project in all parts of the country is progressing in full fire, the high pressure sodium lamp light source that has been installed in the domestic street lamp has also been replaced, LED light source makes the functional value of street lamp in the road can be improved.

With the rise of smart city construction, street lamps bear more responsibilities of The Times

In the second half of the 2010s, with the arrival of the "smart city" construction boom, various urban infrastructure is also embracing the upgrade of smart.Street lamps, as an important part of urban infrastructure, naturally integrate into the wave of intelligence and have a new name -- smart street lamps.

smart street lamps

On illumination function, intelligent street light by applying city/ZIGBEE sensors, power line carrier communication technology and GPRS/CDMA wireless communication technology, etc., will be in the city street lamp together, form the Internet of things, realize the remote centralized control and management of street lamps, and according to the number of cars, time, weather conditions and other conditions set scheme automatically adjust the brightness, realize remote lighting control, make the city road lighting hit "wisdom".Compared with ordinary LED street lamps in the past, they only realized fixed energy saving benefits through the light source in the lamp holder. On the basis of energy saving by using LED light source, smart street lamps make the control of energy consumption arbitrary through the intelligent control of lighting.

From light pole function point of view, the previous lamp posts only for common functions such as lamp body support, hidden line, and wisdom in addition to the function of ordinary light pole, also can install communications base station, video monitoring, information display, car battery pile and convenient carrying and attachments to the livelihood of the people, the environment, such as public security to make intelligent response and intelligent decision support.

On the promotion, with the ordinary LED street light LED by the government, LED by the EMC model production enterprise, energy-using units and energy conservation service company action than wisdom lights emerged from a will get the upper hand, it is because it as wisdom city connected to stand, and it is the government, street lamp manufacturing enterprises, various communications operators and other parties to realize their own value of the object.

With the intelligent function of lighting, the lamp-post with a number of urban convenience carriers, and the focus of government departments and many enterprises and institutions in the field of lighting and communication, smart street lamps will bear more historical responsibilities of lighting technology innovation and development, and become an important wind vane in the lighting information age.