Payment:

T/T, L/C or Paypal

OEM/ODM:

Available

MOQ:

1PCS

Model:

YG-TBQ9B

Lead Time:

5-7 days

The Tunnel Illuminance Detector is a precision instrument designed for professional monitoring of light levels inside tunnels. Based on changes in internal illuminance, the device converts measured values into RS485 signals and transmits them to the tunnel control system, enabling intelligent linkage with lighting equipment for automated control.

During installation, the detector is typically mounted on the tunnel wall at a height of approximately 3 meters, in key sections such as the entrance zone, transition zone, or interior section. It accurately reflects road surface illuminance, ensuring driving safety within the tunnel. The device is commonly used in conjunction with an external luminance detector.

The instrument adopts a high-precision silicon photodiode as the sensing element. Incoming light passes through a professionally designed cosine corrector and a high-efficiency optical filter before reaching the sensor, where it is converted into an electrical signal. This signal is then processed by a highly integrated circuit and output as an RS485 signal.

Key Functions

1. Real-time Illuminance Monitoring
   Continuously monitors light intensity inside the tunnel to ensure lighting conditions meet safety standards and operational requirements.
2. Intelligent Lighting Control Support
   Provides real-time data to the lighting control system, enabling automatic switching and brightness adjustment of luminaires based on ambient light conditions.
3. Data Logging and Analysis
   Records illuminance variation data within the tunnel, supporting subsequent analysis, system optimization, and maintenance.