Micro Air Quality Monitoring System for Tunnels

Accompanied by China's highway construction mileage continues to increase, the proportion of tunnels in the new highway mileage is also increasing. Tunnels have the structural characteristics of spatial closure and band spreading, which has produced a series of changes to the driving environment, often constituting a highway traffic accident-prone areas, and easily induced secondary traffic accidents, resulting in highway obstruction and huge economic losses. The safe operation of tunnels has become more and more prominent, and the monitoring and control of the internal environment of tunnels has become an important way to ensure the safety and operation of highway tunnels.

Because the tunnel is a special structure of the highway and limited by the space, its internal environmental conditions are more complex, because the traveling vehicle discharged by the gaseous and free solid particles mixed with the harmful exhaust, as well as the vehicle with the dust and the dust rolled up, etc., often due to the limitations of the tunnel space can not be quickly spread and disappear, resulting in poor air quality inside the tunnel.

These toxic and hazardous gas content exceeds the standard, it is easy to bring harm to people's health, life. It can be seen that the tunnel environmental air quality monitoring is very necessary.

Micro air quality monitoring system as a monitoring "four gas two dust" environmental sensors and other equipment constitute a comprehensive air quality monitoring system, the system through the sensor to obtain the tunnel site data and data processing and analysis into the cloud platform, can display the site environmental monitoring index and greater than the threshold value of the information issued by the alarm. Alarms are issued for information greater than the critical value. In addition, video surveillance can be used to assist in monitoring the conditions inside the tunnel, and can be synchronized with the installation of our other equipment to monitor the visibility of the tunnel, waterlogging and other conditions in order to reduce the incidence of traffic accidents and the loss of human life and property.