Hong Kong-Zhuhai-Macao Bridge Officially Opened Lighting Technology Full Line Decryption

Lead: On the morning of the 23rd, the opening ceremony of the Hong Kong-Zhuhai-Macao Bridge was held in Zhuhai, Guangdong. President Xi attended the ceremony and announced the official opening of the bridge.

On the morning of October 23, the opening ceremony of the Hong Kong-Zhuhai-Macao Bridge was held in Zhuhai, Guangdong. President Xi attended the ceremony and announced the official opening of the bridge. The Hong Kong-Zhuhai-Macao Bridge spans the ocean, connects Hong Kong to the east, and connects Zhuhai and Macau to the west. It has a total length of about 55 kilometers. It is the first large-scale cross-sea traffic project jointly built by Guangdong, Hong Kong and Macao.

The Hong Kong-Zhuhai-Macao Bridge is the longest-running bridge in the history of world architecture, with the most investment, the most difficult and longest construction. During the construction of the bridge, scientists and engineers created more than 400 new patents and 7 of the world's best. It was named one of the “New Seven Wonders of the World” by the Guardian, in which lighting technology plays a vital role.

Hong Kong-Zhuhai-Macao Bridge full-bridge night lighting is divided into two parts: functional lighting and decorative lighting of the main bridge. The night view design of the whole bridge pays attention to the rhythm of the undulating rhythm. The rolling and undulating like a beautiful bead chain is set on the sea. The three navigational bridges are like “pearls”. The two artificial islands in the sea are like a pair of “璧” Jade, the night lighting is dotted with "Pearl" and "Jade Jade", which is consistent with the overall design culture concept of the bridge.

Landscape Lighting

As the main landscape area, there are seven bridge towers in the main landscape area. Each tower is equipped with dozens of color-changing LED floodlights around the tower. The narrow beam projection is used to brighten the facade of the main tower, which highlights the tower. The strength of the body is straight and straight, but it does not lose the soft and changeable posture; the night vision of the cable-stayed cable uses a narrow beam of color-changing LED floodlights to track and illuminate each cable, not only to outline the shape, but also to show the pull. The strength of the tension is like the rhythm of the strings.

The night light of the bridge adopts the daily and holiday dual mode. The daily mode returns to the original, and the white color is the main color of the bridge. On the holidays, the color changing effect is realized by the color changing LED lamp. The night lighting control adopts RS485 bus intelligent lighting control system, which combines remote centralized control, automatic control and manual control. It can adjust the opening time and section as needed, and effectively monitor the color conversion of lights and the status of lamps.

Functional lighting

The LED street lights, LED tunnel lights, LED landscape lights, LED maintenance lights and LED variable information boards used by the Hong Kong-Zhuhai-Macao Bridge are tailor-made by Shanghai Sansi, with a total of nearly 30,000 sets (sets). This is domestic. There are only a few landmark projects in the global road and bridge lighting volume. Among them, many unique innovative technologies of ceramic heat dissipation technology and reflective light-emitting technology have been applied to the LED lighting products of the bridge.

Among them, the black technology LED ceramic modular street lamp is the main lighting fixture of the main bridge project of the bridge. After the installation, it will become the dark eye of the world's longest sea-crossing bridge, lighting up Changhong.

LED ceramic modular street lamps are born out of the national "863" project results, using independent patented high-power LED lighting unit, standard module with unique lens design, ceramic heat dissipation material with honeycomb convection cooling technology, LED street lamp life and maintenance efficiency With qualitative improvement and leap, it is called black technology in street lamps.

Reflective illuminating technology is also the research result of the key projects of the National 863 Program, and has patented technology with independent intellectual property rights. The Lambert body light distribution and three-dimensional reflection cavity design further improve the reflection efficiency and uniformity and comfort of the light. Seeing no light, no light, no glare, and improving safety for tunnels.

In addition, pioneering design and applications have been made for other applications:

1, curved design

There is a lot of salt spray on the sea, and a strong typhoon often patronizes. The curved design not only reduces the accumulation of salt spray and dust into the damaged parts of the lamp body, but also increases the windproof rating and can withstand 16 typhoons.

2, steel lock tongue

In order to further improve the anti-salt, anti-ultraviolet and high-low temperature grades of the information board, a number of new technologies and new materials were used, and only the bolts were used to customize the steel-type products for the bridge.

3, cancel the hole to ensure heat dissipation

There is no opening at the top of the LED street light. Under the premise of using ceramic heat dissipation technology to fully dissipate heat, the top opening is removed, and salt water vapor intrusion is prevented, and the reliability of the LED street lamp is improved.

4, lens customization

Under the condition of uniform illumination, the brightness uniformity is improved as much as possible, and the zebra crossing effect is eliminated.

5, anti-corrosion coating

Enhanced anti-corrosion coating, more durable, and attentive attention to detail.

6, the system

The brightness requirement of the lamps is adjusted from 0 to 100%, which is more energy-saving and environmentally friendly. The night scene lighting combines remote centralized control, automatic control and manual control. The opening time and section can be adjusted as needed, and the color of the light and the status of the light can be effectively monitored.

7, high power factor

The power factor of street lights and tunnel lights is greater than 0.98, reducing grid load.

8, single light control

Build a data processing and visualization platform to accurately monitor the operation status of each luminaire, automatically report faults, and be efficient and convenient.

How is the lighting system of this size controlled?

According to reports, the Hong Kong-Zhuhai-Macao Bridge traffic engineering system through the three-dimensional modeling technology, the monitoring center carried out a 1:1 three-dimensional simulation of the entire Hong Kong-Zhuhai-Macao Bridge, and through the tens of thousands of sensors to achieve all the mechanical and electrical equipment of the entire Hong Kong-Zhuhai-Macao Bridge real time monitoring.

All traffic engineering equipment and wiring are within the surveillance of this monitoring platform. More than 100,000 points of monitoring points, click on a device, you can jump directly to the three-latitude model, you can visually see a state and a real-time status of the device.

Not only can the operation of all the electromechanical equipment of the bridge be detected in real time, but in the event of a circuit failure, the fully automatic maintenance system will prompt the staff to carry out an accurate troubleshooting solution.

The lower part of the bridge box girder is the integrated pipe gallery of the bridge. All the cables and electromechanical facilities of the entire bridge are installed in the integrated pipe gallery. Entering the pipe gallery, a comprehensive system of electromechanical circuit engineering running through the entire line of the bridge is neatly arranged inside the pipe gallery. At the western end of the line, a dedicated substation of the Hong Kong-Zhuhai-Macao Bridge is providing continuous power protection for the various lamps of the bridge.

How long is the bridge and how long the cable is. According to the calculation of the two loops, the cable length of each model is about 60 kilometers. These cables have to undergo strict inspection before leaving the factory, and then they are wrapped around cable reels of different sizes, loaded with heavy trucks, and traveled to the Hong Kong-Zhuhai-Macao Bridge construction site through more than 200 long journeys.

Cables lying on the shelf, there will be a joint at every interval, connecting the entire bridge 30 kilometers of cable to the bridge to transmit power. According to reports, according to the needs of the bridge, 35KV, 400 square millimeter single-core large-section power cables are specially customized. The requirements for environmental protection and other performance are very high. The domestic manufacturers can produce very few, these cables are from Wuxi Far East Cable Co., Ltd.

The Macao Port Management Area is the largest port of construction of the Hong Kong-Zhuhai-Macao Bridge. The port management area covers an area of 71.61 hectares and has a construction area of over 600,000 square meters. It mainly includes: overseas garages, domestic garages, municipal peripherals and supporting facilities, and the inspection building. The travel inspection building is the central building of the port management area, and seamlessly connects with the Zhuhai Port Travel Inspection Building to realize the “back-to-back” customs clearance mode of the Zhuhai-Macao port.

The inspection building of the Macao Port Management District looks at the lighting of the inspection building from the outside. It is like a dream. The lighting in the building is simple and the light is bright and soft.

In the departure lobby we saw a lot of embedded line lights. As the Macao Port Management Area is located in Zhuhai, sea breeze and humid environment, the lamp is resistant to oxidation and corrosion; this lamp is formed by high-quality cold-rolled sheet; the power supply can be disassembled independently, the fire resistance is high, and the impact resistance is strong; High light transmission PC, ultra-efficient output light; anti-glare, no spot. The departure lobby is a place for passengers to go through immigration procedures. It is necessary to create a clear and transparent sense of space. At the same time, it must take into account the comfort of the space. It is illuminated in various levels of color temperature to meet the visual function of passengers and staff. Claim.

A grille panel is used in the interior office area of the inspection building. High brightness and anti-glare; system efficiency is 40% more energy efficient than traditional T5; high security and easy maintenance, for internal office complement each other.

The internal aisle uses a reflective lamp panel in the inner aisle without much natural light to supplement the illumination. Its unique secondary reflection structure is energy efficient. It is twice as efficient as T5 indirect lighting system, and energy saving is more than 50%; the polymer composite reflector has a reflectivity of 97%.

The exit channel and the entrance to the inspection building are equipped with an efficient and energy-saving spotlight, using the most common direct lighting method. It can replace high-power metal halide lamps one by one, saving more than 50%. Its lamp body is designed from Italy and can be rotated freely. Three kinds of light distribution can be selected to create high-quality key lighting solutions. Imported COB chip has high luminous efficiency, long life, high color rendering index, vivid color and excellent heat dissipation. The space is bright and comfortable, creating a simple and elegant atmosphere, while also emphasizing the guiding effect of the channel lighting.

The Hong Kong section is about 12 kilometers long, including a 9.4-kilometer viaduct, a 1-kilometer viewing tunnel and a 1.6-kilometre ground road. Among them, the viaduct has a wide deck and is a three-lane two-way train with a street lamp every 12-40 meters.

This is an LED street light system specially developed and customized for the Hong Kong-Zhuhai-Macao Bridge. The lamp post and the lamp cap are all made of high-quality die-cast aluminum, and are anti-oxidation treatment to ensure durability in the sea breeze and humid environment, ensuring the life of the lamp body and ensuring the safety of the bridge deck.

Due to the special environment of the use environment and application projects, the competent unit requires that the LED street lamp head not only meets the national basic requirements for bridge road lighting, but also has high requirements for the wind resistance of the lamp cap, ensuring that the wind speed is 43m/ When it is above s (12 winds), it will not be blown off and blown.

The Hong Kong section of the Hong Kong-Zhuhai-Macao Bridge is adjacent to the Hong Kong airport. Therefore, the lighting requirements for this section of the road must be glare-free. The purpose is to avoid glare interference to the pilot, affecting the take-off and landing of the aircraft and causing irreparable damage. The LED street lamp manufacturers actively cooperated with the competent units to redesign the light distribution and reduce light pollution.

It is also worth mentioning that this LED street light adds dimming and monitoring functions, can be dimmed control in the bridge control center, energy saving and environmental protection, and can also feedback the real-time lighting work status to the control center for easy recording and Maintenance, truly "smart lighting".