【 Model recommendation: TH-DN1, a manufacturer of meteorological environment monitoring instruments and equipment. Yunjing Tianhe supports customized services for merchants. You can rest assured that the equipment is selected from Shandong Yunjing Tianhe. 】 The tunnel illumination detector is an intelligent device designed specifically for tunnel lighting monitoring. Based on photoelectric conversion technology, it captures the real-time light intensity inside the tunnel through photoelectric sensors (such as silicon photovoltaic cells and photodiodes), converts the light signal into an electrical signal, processes and analyzes it, and finally outputs a digital signal for lighting control. The device has a measurement accuracy of up to 0.1 Lux, with automatic error correction to less than ± 1%. It can accurately capture changes in lighting and has real-time data transmission capabilities. The data can be uploaded to the monitoring center or mobile app through wired or wireless modules, supporting remote monitoring and storage analysis, providing critical data support for tunnel lighting regulation and driving safety assurance.

Product Overview:

Highway tunnels are special sections of highways, with narrow spatial environments, large variations in lighting, and unclear visibility as a special tubular structure. Unlike the bright and spacious roads outside the tunnel, the process of vehicles entering and passing through the tunnel is a process of entering from the bright into the black hole, and then moving from the black hole to the bright. The process of transitioning from light to dark or from dark to light requires an adaptation process. During this adaptation process, drivers find it difficult to identify road targets or objects inside the tunnel, resulting in visual psychological barriers or obstacles that make driving appear unsafe. The purpose of tunnel lighting is to create a good working visual environment quality inside the tunnel, ensuring that vehicles traveling during the day and night can safely approach, pass through, and pass through the tunnel at the designed speed.

Tunnel light intensity detector is an efficient lighting control system designed to address visual adaptation issues caused by differences in brightness and darkness inside and outside tunnels. In response to the requirements for lighting control in domestic highway tunnels, our company has developed an in tunnel illumination detector and an out of tunnel brightness detector to meet market demands. Its overall design can meet the requirements of harsh outdoor working environments, with high reliability and low maintenance, microprocessor technology, digital operation, and easy installation and debugging. This product aims to improve the scientific and energy efficiency of tunnel lighting by accurately measuring the brightness of the tunnel entrance and automatically adjusting the internal lighting, ensuring driving safety requirements and energy-saving effects, while complying with the requirements of the "Design Specification for Highway Tunnel Ventilation and Lighting".

Application Scenario:

1. Monitoring and adjustment: The brightness detector outside the tunnel is used in conjunction with the illuminance detector inside the tunnel. The detector outside the tunnel monitors the real-time changes in the intensity of the light outside the tunnel and adjusts the lighting intensity inside the tunnel to ensure a smooth transition of light inside and outside the tunnel, reducing visual impact for drivers entering and exiting the tunnel and improving driving safety.

2. Energy saving optimization: dynamically adjust the lighting power inside the tunnel based on the natural light intensity outside the tunnel, avoiding excessive lighting during the day or insufficient lighting at night, achieving precise allocation of lighting resources, reducing tunnel operating costs, and achieving energy-saving goals.

3. Safety warning: When weather conditions cause a sudden drop in brightness or other abnormal situations outside the tunnel, emergency lighting plans can be activated in advance, and variable information boards and other devices can be used to remind drivers to slow down and ensure driving safety.

Installation method:

The tunnel light intensity monitor is installed on the walls of the designated area inside the tunnel. In order to avoid damage caused by accidents or car debris, it needs to be installed at a height of about 4 meters and at an appropriate position greater than 10 meters from the tunnel entrance. Has high reliability and low maintenance Microprocessor technology, digital operation, easy installation and debugging.

Product Features:

According to the CIE specified human visual spectrum curve, a specially designed high-efficiency filter is used for calibration, which conforms to visual characteristics

Continuous linear proportional output, corresponding to accurate and sensitive measurement range of the equipment

Multiple signal output modes to adapt to different usage modes

Local data storage to avoid data loss in abnormal situations

The instrument casing has IP66 protection function, and the surface is coated with special paint, which has anti-corrosion ability

There is an output signal protection function to prevent abnormal situations from affecting user devices

Equipped with zero point compensation function

Technical Specifications:

Measurement range: 0-20000 lux

Measurement accuracy: 0.01lux

Measurement error: ± 1%

Measurement angle: Vertical ≥ 20 °, Horizontal ≥ 20 °

Analog output: 4~20mA

Transmission interface: RS485

Load impedance: 750Ω

Working temperature: -40 ℃ to+85 ℃

Working humidity: 0-100% RH

Protection level: IP66

Power supply mode: AC 90-305V

Installation method: Wall mounted installation