Multi-Dimensional Tunnel Monitoring: Four Critical Devices

As a special section in the transportation network, tunnels, with their enclosed environment, are susceptible to factors such as vehicle exhaust, air flow changes, and light differences. Professional monitoring equipment is therefore needed to ensure traffic safety. The following introduces four key types of such equipment.

Tunnel visibility monitor

In the enclosed tunnel space, if carbon monoxide (CO) emitted by vehicles is not discharged in time, it will endanger human health; reduced visibility (VI) will also affect driving safety. The COVI detector can accurately monitor both carbon monoxide concentration and visibility simultaneously. FT-SDN operates based on the transmission principle, with the transmitter/receiver and reflector installed opposite each other, and the optical components emit a highly focused detection beam. The device is equipped with a compensation function, which can automatically gain compensation when the lens is contaminated, resulting in a long maintenance cycle. It provides a reliable basis for tunnel ventilation and safe passage.

Tunnel anemometer

Wind speed and direction play a decisive role in evaluating the ventilation effect of tunnels. Proper ventilation can discharge harmful gases, keep the air fresh, and reduce the probability of accidents. Different wind speeds and directions will affect the strategy of the ventilation system. The wind speed and direction detection products under Fengtu Technology can accurately measure relevant data, helping staff understand air flow conditions, adjust the ventilation system, and ensure air quality and driving environment in the tunnel.

Luminance detector outside tunnel

The luminance detector outside the tunnel is used to measure the light intensity outside the tunnel. Changes in light intensity over time and with weather conditions are crucial for the control of lighting at the tunnel entrance. Fengtu Technology's external light intensity detection equipment can shield electromagnetic clutter interference and accurately measure the external brightness. It detects changes in light intensity in real-time and transmits the data to the lighting control system, enabling the entrance lighting to be intelligently adjusted according to actual conditions. This avoids driver discomfort caused by excessive light differences between the inside and outside of the tunnel, thereby improving safety.

Tunnel brightness monitor

The internal light intensity detector monitors the light intensity inside the tunnel to ensure that the light in all areas meets driving needs. Different sections inside the tunnel have different requirements for light intensity. The FT-DN1 tunnel internal illuminance detector can quickly monitor changes in illuminance. Upon detecting fluctuations, it immediately transmits the data to the control system, providing a basis for lighting adjustment. This ensures that the lighting is adjusted promptly and accurately, providing drivers with good visual conditions.

In summary, these four types of equipment build a tunnel environment monitoring system from multiple dimensions, providing technical support for the safe operation of tunnels and enhancing the safety and reliability of traffic passage.