Wuhan Yangluo Yangtze River Bridge is a key transportation project during the “10th Five-Year Plan†period. It is the control project of Wuhan Ring Road and the throat of the main line of (North) Beijing-Zhuhai (Hai) and Hurong National Road. It is also Hangzhou to The main skeleton of the Lanzhou Key Trunk Highway and the “four vertical and two horizontal and one ring†highways in Hubei Province. The main bridge of the bridge adopts the twin tower single-span suspension bridge with a main span of 1280 meters. This is the first suspension bridge in Wuhan. It spans the third in the country and the eighth in the world. It is difficult to construct and has high technical content. Eyes.
The application of LED lamps and systems for Wuhan Yangluo Yangtze River Bridge is an important part of the project. Through the LED lighting and control system, the majestic momentum of the Yangluo Yangtze River Bridge is outlined, creating a strong visual impact, bringing the audience into the environment of the bridge building art from both physical and psychological aspects.
Its key technologies and innovations are:
1, mainly using a new 350mA LED light source;
2. According to the local cultural elements and artistic effects requirements of the bridge building, abstract the appearance of the bridge lamps of the Chu rhyme clock elements; (appearance patent)
3. At high altitude, the DMX signal of LED lamps is controlled to a length of 4,500 meters, with a single point of 256 levels;
4. Adopt H-type integrated heat dissipation path design to meet the requirements of 6400mm*mm/W. 5. Shaped waterproof rubber pad considering surface water tension. 6. Ventilation plug for balancing the pressure difference inside and outside the lamp cavity (utility model patent)
7, anti-inductive lightning and ESD electrical design, can withstand 800A (8A/20US) surge.
8. The internal communication decoding module of the lamp has anti-surge anti-interference circuit, with slope, open/idle fail protection, and 15KVESD protection.
9. Adopting optical stripe and bite fine flower design with vertical and horizontal index spacing, so that the light mixing cover not only mixes light uniformly, but also reduces the loss of light output;
10. For the requirements of engineering site operation reliability, the integrated design of simplified engineering wiring is adopted, and the full-voltage switching power supply, constant current driver and DMX decoding module are integrated inside the LED lamp;
