Tunnel Intelligent Lighting Solutions

In modern urban construction, tunnels as an important channel connecting various areas of the city, the design and operation of its lighting system is not only related to traffic safety, but also has a direct impact on the effective use of energy and environmental protection. With the progress of science and technology and the deepening of the green concept, tunnel lighting energy-saving control solutions have become the focus of attention in the industry. In this paper, we will analyze the demand for tunnel lighting, the application of energy-saving technologies, intelligent control strategies and their implementation effects, in-depth discussion of tunnel lighting energy-saving control program of comprehensive design and practice.

First, tunnel lighting demand analysis

Tunnel lighting design needs to fully consider the safety of vehicular traffic and the visual comfort of the driver. Generally speaking, tunnel lighting can be divided into four parts: entrance section, transition section, middle section and exit section, each of which has different lighting requirements. The entrance section requires high brightness lighting to reduce the “black hole effect”, the transition section needs to gradually reduce the brightness to adapt to changes in external light, the middle section maintains moderate brightness to ensure driving safety, and the exit section needs to avoid the “white hole effect” of the sudden stimulation of the driver’s vision. In addition, there is a significant difference between night and daytime lighting requirements, which need to be flexibly adjusted through the intelligent control system.

Second, the application of energy-saving technology

1. LED lighting technology

LED (Light Emitting Diode) as a new generation of light source, with its high efficiency, long life, environmental protection and energy saving advantages, has been widely used in tunnel lighting. Compared with traditional high-pressure sodium lamps and metal halide lamps, LED lamps have higher energy efficiency, lower energy consumption, and better light quality, which can effectively improve the quality of tunnel lighting.

2. Intelligent dimming technology

Intelligent dimming technology by sensing the tunnel inside and outside the light intensity, traffic flow, speed and other information, automatically adjust the tunnel lighting brightness of each area. During sparse traffic or off-peak hours at night, the lighting brightness can be appropriately lowered to realize energy saving; while under dense traffic or bad weather conditions, the lighting brightness can be increased to ensure driving safety.

3. Photovoltaic and Energy Storage Systems

If conditions permit, photovoltaic panels can be installed on top of or around the tunnel to convert solar energy into electricity and provide green energy for the tunnel lighting system. At the same time, with the energy storage system, when the light is insufficient to release the stored electricity, to realize the effective use of energy and self-sufficiency.

Tunnel lighting control cabinet adopts intelligent dimming system, program design, stable and can be realized on-demand control, the system consists of lighting dimming control cabinet, intelligent drive, lamps and lanterns, system software, light drift transducer, divided into enhanced lighting, basic lighting, two types.

Product features.

1, power saving effect is remarkable, power saving rate of 20%, the service life of up to 20 years or more.

2, the proposed tunnel sensor, time control for dimming, energy consumption collection, energy consumption analysis

3、Products with automatic bypass function, once there is a teaching obstacle, can be automatically bypassed to the grid power supply.

4, a high degree of intelligent control: the product has a program control function, the user can set their own time to switch to different levels of power saving, but also set their own time to switch the lights.

5, long-term maintenance-free: lighting section cabinet using advanced technology, selecting high-quality devices, the implementation of optimized processes and strict quality testing, the product can be in a variety of harsh grid environments and complexity of the product.

A variety of harsh grid environment and complex load conditions, reliable continuous and stable work, to achieve long-term maintenance-free.

6, industrial control screen display parameters, including current and voltage, fault status and other operating parameters.

7、Protection functions: short circuit, over-current, under-voltage, over-voltage, overheating protection.

Third. Intelligent control strategy

1. Centralized control and decentralized implementation

The tunnel lighting intelligent control center is set up to collect and analyze data from sensors centrally and formulate the optimal lighting strategy. At the same time, decentralized execution units are set up in each area of the tunnel to adjust the lighting brightness according to the instructions of the control center, so as to achieve fast response and precise control.

2. Predictive maintenance

Utilizing big data analysis technology, real-time monitoring and predictive analysis of the tunnel lighting system’s operating status, timely detection of potential failures and maintenance, reducing energy waste and safety hazards caused by equipment failure.

3. Emergency lighting plan

A comprehensive emergency lighting plan is formulated to ensure that the emergency lighting system can be activated quickly in case of emergency (e.g. fire, power outage, etc.), so as to ensure the safe evacuation of people in the tunnel.

Fourth. Implementation Effect and Prospect

Through the implementation of tunnel lighting energy-saving control program, not only can significantly reduce tunnel lighting energy consumption, reduce operating costs, but also improve the quality of tunnel lighting, enhance traffic safety. At the same time, the program is in line with the concept of green development, which helps to promote the sustainable development of urban transportation infrastructure.

Looking to the future, with the continuous progress of IoT, cloud computing, artificial intelligence and other technologies, tunnel lighting energy-saving control will be more intelligent and refined. For example, through deep learning algorithms to optimize the lighting strategy, to achieve a more personalized lighting experience; the use of 5G communication technology to improve data transmission speed, to achieve remote real-time monitoring and rapid response. The application of these technologies will further promote the development of tunnel lighting energy-saving control technology, contributing more green power to urban transportation construction.