Tunnel Brightness Detector (Tunnel LU101)

Tunnel Brightness Detector: An Intelligent Solution to Ensure Tunnel Safety

1. Product Overview

Tunnel brightness detector is an efficient lighting control system, specially designed to solve the visual adaptation problem caused by the difference in light and darkness inside and outside the tunnel. This "black hole" and "white hole" effect may make drivers feel uncomfortable when entering and exiting tunnels, increasing the risk of traffic accidents. By accurately measuring the brightness of the tunnel entrance and automatically adjusting the internal lighting, this product aims to improve the scientific nature and energy efficiency of tunnel lighting, ensure driving safety, and comply with the requirements of the "Road Tunnel Ventilation and Lighting Design Specifications".

2. Product Functions

1) Continuous online measurement: It can continuously measure the ambient light brightness outside the tunnel and provide real-time data support for tunnel lighting.

2) Multi-interface output: Provides RS-232 or RS-485 digital output interface, and 4-20mA analog output interface to adapt to different system connection needs

3) Intelligent protocol support: built-in ModBus protocol, which facilitates network monitoring and centralized management within the tunnel.

4) Advanced function configuration: It comes with numerical display, fault alarm and data storage functions, which facilitates on-site debugging and later equipment maintenance.

3. Product Features

1) Integrated structural design: small and compact, the sensor is small in size, light in weight, easy to install, and adapts to tunnel space.

2) Targeted design: specially designed for the special harsh environmental conditions of the tunnel to ensure long-term stable operation. 

3) Low energy consumption operation: Low power consumption design ensures continuous working performance while saving energy.

4) Lightning protection: Lightning protection measures have been taken, and the communication interface and power interface have lightning protection designs, which greatly reduces the damage that may be caused by lightning strikes.

4. Installation Guide

As shown in the figure below, the tunnel brightness detector should be installed directly on the column outside the tunnel, ensuring a height between 3 and 5 meters, in order to accurately capture the brightness of the tunnel entrance. The sensor probe should be aimed at the center of the tunnel opening to obtain the most accurate light intensity data. 

Installation diagram

The design and function of this product make it an indispensable part of the tunnel lighting system. It not only improves the visual comfort and safety of drivers, but also provides tunnel management departments with efficient and energy-saving lighting solutions. Through intelligent control and precise brightness detection,

tunnel brightness detectors play a key role in ensuring traffic safety and reducing energy consumption.

5.Technical Indicators