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As a kind of human transportation mode, the tunnel is an underground space composed of a semi-closed structure. Due to its special structure, the sunlight in the tunnel cannot be directly exposed, and lighting is required during the day. The lighting system is one of the most important facilities in modern tunnel engineering, and once the tunnel lighting is put into use, the lighting system is in a long-term working state. The origin of the tunnel can be traced back to the Spring and Autumn Period and the Warring States Period. Qin State opened the world's first artificial tunnel ramp. History has a cloud: the road is a thousand miles, through the Han Han, so that the world is afraid of Qin. The tunnel lighting at that time used a torch, which was very simple and inconvenient. In the modern times, with the development of industrialization, tunnel traffic has gradually increased, and tunnel lighting has gradually developed. In the mid-nineteenth century, tunnel lighting was dominated by kerosene and gas lamps. Until the end of the 19th century, electric lights gradually applied to tunnel lighting. . The simple tunnel lighting era of the ramp site In the early 1990s, there were very few tunnels in China, and the tunnel lighting facilities were even more difficult. The tunnels on the roads were mostly without lighting or only a few street lights. The lighting quality was very low. At this point, tunnel lighting only stays in place to meet simple lighting needs. In the contemporary era, with the continuous innovation of technology, the development of tunnel lighting has made great progress. Even in the era of simple lighting, tunnel lighting sources have experienced the development of incandescent lamps, fluorescent lamps, high-pressure mercury lamps, low-pressure sodium lamps, and high-pressure sodium lamps. The light source of tunnel illumination breaks through in terms of light efficiency, luminous flux, life, light color and color rendering, creating a better tunnel lighting environment. The era of intelligent tunnel lighting Since the beginning of the 21st century, the development of LED lighting technology has become increasingly strong, and LED lighting has gradually occupied most of the market for tunnel lighting. The LED light source has the characteristics of high luminous efficiency, high color rendering coefficient, long life, high efficiency and energy saving, and ultra low power consumption, and the LED lamp has a perfect dimming function, and can change the tunnel at any time according to factors such as daytime, nighttime and traffic volume. Lighting level, through the integration of WiFi, ZigBee and other network technologies, LED lighting for the tunnel lighting ushered in the era of intelligent lighting. In 2007, the domestic LED road and tunnel lighting market began to form. In the first five years, many manufacturers ignored the heat dissipation problem of LED lighting, which caused the failure rate of LED roads, tunnels and other lighting projects to be more than 90%, misleading the LED lighting technology is not mature enough, and it is still waiting to see the development trend. At the same time, Shanghai Sansi has completed 148 LED road and tunnel lighting projects with its original heat dissipation and lighting layout technologies. The 250,000-inch high-power LED lamps provided are all stable. Among them, China's first LED tunnel lighting project--Jiangxi Jingying High-speed Tunnel LED lighting project, was rated as energy-saving emission reduction demonstration project by the Ministry of Communications; also adopted Shanghai Sansi LED lighting project--Fujian Nanhui Expressway Tunnel It was rated as National Demonstration Project of LED Lighting for Expressway Tunnel by the National Development and Reform Commission, the Ministry of Finance and the Ministry of Transport. Jiangxi Jingying High Speed ​​Tunnel