Environmental video surveillance will be seamlessly integrated

Looking back at the market, the network level of the early environmental monitoring system can be divided into three levels: the field level, the network transmission layer, and the central monitoring level. The field level includes data acquisition and transmission devices and various monitoring and sampling devices. Complete data acquisition, storage, sending and command receiving functions. The network transmission layer refers to the network entities used for data transmission, including wired and wireless. The central monitoring layer is the monitoring center monitoring platform. It communicates with each other through the network transmission layer and the field layer, exchanges data, and orders are issued to achieve centralized remote monitoring of the field layer.

Most of the early environmental monitoring systems only implemented data monitoring functions, such as the real-time collection and monitoring of sulfur dioxide and chemical oxygen demand emissions from the blowdown points. The image monitoring function was not implemented, and the actual image of the blowdown points could not be visually seen. The actual situation is not fully grasped.

At present, when building an environmental monitoring system, some system integrators add video monitoring functions, but they are usually based on localized monitoring applications. Each monitoring point independently sets up a monitoring system. Although it is also possible to access the image through a network connection, the lack of unified planning and design provides a more convenient and flexible way to access images, data, and emergencies in emergent environmental events. Lack of adequate thinking has created a passive environment monitoring effort. Whenever an environmental pollution incident occurs, the video screen can barely present the outline of the pollution scene. The details of the pollution are ambiguous, and it does not provide a key role in providing on-site certification and clues. Restricted the overall effect of monitoring and control of pollution sources by environmental monitoring systems.

First, the new needs of environmental monitoring market The current combination of environmental monitoring systems and video surveillance systems, so that environmental monitoring is in the "observable stage", "see" that the environmental monitoring personnel through the remote transmission of video surveillance images using human eye monitoring The program observes real-time emission images of pollution sources. Due to the intermittent nature of most of the pollutants' emissions and the large number of video surveillance points, the large amount of data has caused a heavy workload for environmental protection workers. Usually, a large number of video surveillance data needs to be selected during law enforcement and forensics. The video surveillance images of specific time nodes do not include automatic image capture. Therefore, there are generally difficulties in obtaining evidence in environmental protection monitoring and law enforcement and it is difficult to enforce laws.

Therefore, multi-channel video, multi-point monitoring, realized the EPA multi-point unified monitoring and management, air pollution, drinking water source protection areas, industrial wastewater, ship emissions, rivers, inspections of key industrial companies, food service industry pollution A number of special key management areas, such as illegal sewage disposal activities, have played a very high deterrent effect.

(1) The application of high-definition environmental monitoring and intelligent monitoring systems to high-definition and intelligence (smart identification, intelligent analysis, etc.) has become the current trend of environmental monitoring. The combination of high-definition technology and IP technology will provide users with unprecedented data transmission and picture quality experience. Through the high-definition video surveillance system, users will be able to identify the finest details of the picture and the actual situation on the scene, and apply to the actual needs of more environmental monitoring systems in the field of sewage, air, dust monitoring. High-definition video surveillance will provide greater ease of use, clarity, and monitoring applications for more complex environments for environmental monitoring.

(B) Long-distance monitoring and night vision capabilities With the development of monitoring systems, long-range fog monitoring performance and efficient night vision monitoring performance have become new performance in the field of video surveillance and have become a breakthrough and new complement to traditional monitoring. The traditional short-range monitoring is based on integration of long-range day and night surveillance cameras to form a three-dimensional surveillance network, which has become a new demand, such as the construction of high-altitude prospect cameras in the area of ​​Ping An City, using the camera's "telescope" performance, monitoring a few kilometers Urban dynamics within a dozen kilometers. Similarly, this type of camera is used for environmental protection and has enhanced the environmental protection monitoring. It is playing an important role in monitoring the urban atmosphere, monitoring the sea inlets, and monitoring inland waterways.

(C) Monitoring system's high-definition application The intelligent analysis system judges whether the environmental conditions are normal through the acquisition and analysis of video, audio, and data. If abnormal conditions such as excessive pollutants occur, an automatic alarm will be issued to alert the environment. The management department pays attention to and handles it in a timely manner to curb the occurrence of major pollution incidents.

Second, environmental monitoring applications (A) key pollution source video surveillance system installed in the plant's sewage pipe day and night surveillance cameras, the use of video servers connected to the camera, and the front-end site collected video through the network to the monitoring center, monitoring personnel in real time Watch the front-end video.

(II) High hopes for environmental protection High-altitude observation cameras are installed in the central area or main location of environmental monitoring. The video server is connected to the cameras, and the entire area is fully covered by the camera's “up and down, long-range, global” features. monitor. The camera uses a high-power zoom lens, the optical zoom effective distance can clearly see the scene a few kilometers away, with the far-infrared thermal imaging system, suitable for large-area night vision detection monitoring, auxiliary laser lighting system, to achieve the goal of the region within the night Forensics monitoring; the entire high-altitude observation camera system to achieve the 24-hour dynamic monitoring needs; the front-end video images are transmitted to the monitoring center, on-duty personnel in the monitoring center, the entire jurisdiction within the overall monitoring.

III. Development Trend of Environmental Protection Monitoring China's environmental monitoring stations have the capability of environmental quality monitoring, pollution source supervision and monitoring, emergency monitoring, service monitoring and scientific research monitoring. They can carry out elements such as water, gas, slag, soil, biological, noise and radioactivity. The monitoring of environmental quality of multiple projects, monitoring of pollution sources, monitoring of total amount of pollutants, monitoring of pollution sources, and monitoring of the effects of environmental pollution control projects can also undertake more complex environmental issues investigations. As more and more environmental monitoring stations are put into use, the seamless integration of the visualized operation and maintenance system that ensures the normal operation of environmental monitoring stations and the environmental monitoring system has become the trend of environmental protection industry informatization construction.