With the rapid development of economy, more and more attention is paid to environmental protection. However, environmental protection lags behind, and many enterprises will still arrange or even steal the environment for their own interests. A large amount of untreated sewage is discharged into the river, causing water pollution, the death of Hanoi's aquatic animals and plants, and the impact on the water supply for residents; Untreated waste gas discharged into the air will cause air pollution, the greenhouse effect, and even seriously affect the health of nearby residents. Therefore, in the face of these enterprises, we must strengthen the monitoring. But they often do so secretly at night, when no one else is around, making the work of environmental law enforcement difficult.

The common monitoring is generally visible light monitoring. When the light is not good at night, the monitoring picture and effect will be affected. Now more and more places begin to use dual-light monitoring, that is, the use of visible light and infrared monitoring. Infrared thermal camera is not affected by visible light and can see clearly even in dark environments. Infrared thermal camera is the image visible to human eyes by receiving infrared radiation from objects, which can realize 24-hour monitoring. Once it is discovered that some enterprises steal the discharge, it can inform the environmental protection department through the background and take timely measures.

In addition to the fixed installation of dual-light monitoring, the airborne infrared system can also be used for regular inspection. After the cruise route is set by software, the airborne infrared thermal camera can take pictures of the cruise route and the picture can be transmitted to the monitoring and control room in real time. Once it is found that an enterprise steals the plane, it can record it and take relevant measures. This can save a lot of manpower and material resources, improve work efficiency, but also can effectively manage the enterprise waste water and waste gas discharge, to achieve the purpose of protecting the environment.