Chengdu Lighting has fully opened the era of intelligent and refined management

The shape of a modern city is not only built but also managed. Big city, fine management. With the transformation and upgrading of urban management to the depth, Chengdu City Management actively introduces emerging technologies such as big data and “Internet+”, which are more “fine” in management and service. Chengdu city management has taken solid steps in the process of refinement.

Chengdu City Lighting, as a bright messenger of a city, has actively piloted the construction of an intelligent urban lighting Internet of Things management system in recent years. As a part of Chengdu's livelihood project in 2016, Chengdu “Smart City”, in April this year, Chengdu City Lighting was upgraded and put into trial operation. The upgraded lighting system can realize intelligent lighting, on-demand lighting, green lighting, and fine and efficient management of 110,000 street lamps in the downtown area.

The city's lighting intelligent upgrade

System center "remote control" street light switch "clouds are dense, the sky is dark, how is this street light still not bright?" "It is still so bright, the street lights of a road are open, wasting resources!" About the street light switch time is not suitable Complaining, there will be fewer and fewer in Chengdu in the future.

At the beginning of April this year, the city's urban lighting monitoring center was upgraded and upgraded. The contents of this upgrade include: natural light level remote monitoring system upgrade and transformation, information security protection upgrade and transformation, software and hardware support platform upgrade and transformation.

In this upgrade, the central city is divided into 27 areas for illuminance collection, thus achieving “remote control” street light switch; not only that, but also real-time monitoring of more than 1500 distribution boxes, automatic “alarm”, will The failure is eliminated in the bud, and the efficiency of street lamp failure treatment is comprehensively improved, so that the public can feel the "temperature" of city management.

   A

intelligent control

27 illuminance collection points

Street light switch partition intelligent control

Yesterday afternoon, on the big screen of the Chengdu City Management Committee Lighting Monitoring Center, the reporter saw that there are 27 “green dots” evenly distributed on the map of the main city of Chengdu. These green spots are the collection points of natural light.

In addition, there are many street light distribution boxes with AP logos on the map. “There are more than 110,000 street lamps in the downtown area, and we are using these 1,500 distribution boxes to 'remote control' the street lights.” According to reports, each distribution box is a “transfer station” for intelligent control systems. . It turned out that when the pilot streetlight "smart remote control system" was just started, the "remote control heart" was placed in the "belly" of the street lamp pole. This "heart" can automatically receive signals from the central system and adjust the light in real time.

The reporter saw that on the right side of the screen, a series of data such as the average illuminance, the light-on threshold, the sunset time, and the preset turn-on time were displayed. “When the average illuminance is greater than 900 lux (lux, illuminance unit), it means that the light is sufficient.” According to the relevant person in charge of the lighting department of the city management committee, when the illumination of a collection point is lower than 120 lux, the system will automatically prompt Turn on the light.

6 collection points under the second ring viaduct

Will realize that the bridge is not bright under the bridge

Before the upgrade, it was mainly based on the sunrise and sunset time and weather conditions to determine the time of the road lights. “Before, there were only three natural illuminance collection points in the main urban area of ​​Chengdu, which were distributed in the east, south and west of the city.” With the expansion of the city scale, there were more “sunrises in the east to the west” in the summer, according to the original monitoring. The ability to turn on the lights in the dimly lit areas in time, in the case of inaccurate grasp, only a lot of areas can be turned on together. “It’s very easy to get off early or turn off the lights lately.”

The current situation has changed: 27 acquisition points simultaneously collect illumination, you can accurately locate a certain area, "Which area is too low light, we can provide more targeted lighting, avoiding too early or too late The waste caused by turning on the lights." The person in charge introduced.

In view of the special situation of poor light under the second-loop viaduct, in order to grasp the real-time illumination under the bridge during the upgrade, we also set up 6 collection points on the lower road of the viaduct to realize the time-sharing under the bridge. "In the future, you may often encounter no street lights on the second ring elevated, but when you get off the elevated road, you find that the street lights are on, and the road lighting can meet the security needs."

B

Active maintenance

Real-time monitoring of distribution box data

An exception will automatically "play report"

The reporter saw that in many points marked "AP", the voltage, the current of each branch, the operating status, etc. are being displayed in real time. These "AP" points sometimes change from blue to orange, which is to "report" to the staff: the power line has failed. Click on the “AP” of “Discoloration” and you will see the “Lack of Phase” item displayed. “If these missing phases reach three and the fault is not resolved before dark, the streetlights in the area where the distribution box is located will not light up.”

“Each power distribution box can be responsible for more than 100 street lights.” It is because of this signal distribution box that receives the “transfer station”, so that every street lamp with “remote control heart” installed will automatically transmit data. Give it, pass it to the central system, and the system will judge what kind of faults may exist in this area through automatic data analysis. Whenever there is a similar alarm message, the lighting department of the city management committee will immediately make a fault determination and dispose of it as soon as possible before dark.

At the same time, combined with GIS map information, it can accurately locate and timely understand the location of faulty lamps, facilitate maintenance personnel to repair in time, improve lighting rate, and “kill” the fault in the “sprouting” state. It is understood that this transformation, also upgraded the system's GIS function, using electronic maps with more abundant data and better information, will quickly locate the problematic street lights, thus improving the efficiency of street lamp troubleshooting.

In 2001, Chengdu launched the construction of a centralized control system for wireless lighting monitoring. At present, a remote intelligent monitoring system has been formed for all street lights in the central city, centralized control of important landscape lights, and full coverage of real-time monitoring. Our reporter Li Xia photography Xie Minggang

Actively accept the supervision of the CPPCC

Urban lighting management is more humanized and refined

Street lights standing on both sides of the city road may rarely attract your attention during the day. Once the sky is dark and night falls, it becomes an essential companion and "eye" for you and me. In the Wuhou Street, the tall trees bring quietness to the street, but they obscure the "eyes" when we travel. In this regard, CPPCC member Ni Zhen submitted a proposal to improve the lighting conditions on this street.

   Leaves are too dense to block street lights

Over the years, "the symptoms are not cured"

Living in the vicinity of Wuhouyu Hengjie for more than 10 years, the CPPCC National Committee member Ni Zhen has always liked the comfort of this street. "The foliage is lush, and it is very cool in the summer." However, the flourishing of the foliage is not always a good thing. "After growing into a big tree, the leaves always cover the light of the streetlights. When walking and driving at night, I always feel that the brightness is not enough."

The Ni Zhen committee member looked in his eyes and was anxious to keep an eye on the street lighting conditions of this street. In the past few years, after a small amount of leaf trimming in the summer, the light blocked will always be less. However, in the second year, it will once again flourish. "In the long run, the remedy has not solved the problem." Niezhen told reporters that her proposal suggested that the lighting conditions of Wuhouyi Hengjie could be completely improved. "This street, the street is connected to a ring road, and the street leads to Wuhou Temple. It is actually a landscape street. But once in the evening, it is not clear here, there are certain security risks." Ni Zhen said that the street lamp Lighting needs to be convenient for the public to travel.

   Research and technical solutions

Reinstall streetlight supplemental lighting

The proposal was transferred to the lighting department of the Municipal Management Committee. In the afternoon, the staff of the Facilities Management Section convened the technicians to the site for review and measurement. There are 25 street lights on this road, and the height of the street lights is about 8 meters. “We found that some places have less influence on lighting, but most of them have a greater impact.” The facility management staff introduced, “We have classified the treatment, the impact is small, and the appropriate amount of pruning leaves. If the impact is large, it will be supplemented by the lighting on the pole ladder of the street lamp."

On the afternoon of May 9, the materials were delivered and the staff began construction work. The reporter saw that the staff stood on the high-altitude hydraulic vehicle and reinstalled a street lamp under the original street lamp. At the same time, the original street lamp remained intact. "There are 4 street lights, only need to trim the branches and leaves, but there are 21 lights. We installed a arm light at the 6-meter-high position of the pole, which is reduced by two meters." According to the introduction, the original street lamp was retained. Because the power of the two lights does not shine at the same time, "Although the arm light can improve the brightness of the ground, the range of the lighting will be affected." If you keep the original street light, you can make a comparison in the garden department. After the large trim, the arm lights are withdrawn.

   Citizens encounter street lights blocked

Call 84444440 or 12345

It is understood that the staff of the lighting department of the Municipal Management Committee is conducting a double inspection of the street lights every day. For the city's 110,000 street lamps, inspections are the basic work of streetlight management. Every day, four management offices have to send staff to conduct 4 inspections of street lights.

Every day, the staff will inspect the streetlights in the evening before the city is turned on. After the street lights are on, they will be inspected once, and the next morning, when the street lights are quietly closed, a third inspection will be conducted. The problems found during the inspection will be handled by a special person during the daytime working hours. Day after day, such basic work is uninterrupted 365 days a year.

If the public encounters problems or malfunctions that are not easily found by the inspectors, such as street lights being blocked, you can also call the 12345 mayor hotline or directly call 84444440 to tell the staff of the lighting department of the city management committee. The staff will handle it as soon as possible, and the city will be bright.

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