Water conservatism security digital video surveillance transformation

Compared with the financial, energy, transportation, and other industries, water conservancy and security applications are relatively late. It can be traced back to around the year 2000. The fermentation of the concept of “digital water conservancy” has prompted some small dams, reservoirs, and other regions to start using small-scale videos. Surveillance systems, followed by video surveillance based on digital networks, have also begun to be popularized, and there have been introduced subsystems such as access control, perimeter prevention, and anti-theft alarms. As a result, the security system as an important backbone of digital water conservancy has become a hot spot in digital water conservancy construction in recent years.

In water conservancy and security applications, video surveillance is still the most important subsystem, and it plays a key role in dam safety, outdoor protection, unit protection, production supervision, power transmission and distribution. According to Chen Gang, deputy director of Product Management Department of Guangdong High-New Emerging Communications Co., Ltd., the application of video surveillance products in the water conservancy industry has the following three major characteristics:

Environmental adaptability is strong. Water conservancy monitoring facilities are often outdoors or even in the wild. Conditions are poor. Cameras and other equipment must have features such as waterproof, lightning protection, corrosion protection, high and low temperature, and high wind resistance. In many practical engineering applications, most cameras The damage was caused by lightning strikes, and other equipment crashed due to high temperature work. The equipment selected for use in certain sea inlets should also be protected against salt spray, corrosion, rust and deformation. Most of the water conservancy projects are in the wild and they are easy targets for theft. Therefore, anti-theft and anti-riot requirements should be fully taken into account during construction. The degree of protection should not be lower than IP65. Others are the environmental specialties of transmission and power supply. If some places cannot be laid cables, only wireless transmission, wind and solar power generation, etc. can be used.

Some of the relevant performance indicators are relatively high. For example, there is no lighting in the field, and the low-light camera used in night surveillance must be highly sensitive. Because the scope of water conservancy monitoring is large, infrared light-filling is usually of little significance. It is better to fill the light than to add a spotlight; Some monitoring of water bodies (such as reservoirs, fishing ports, and main embankments) require cameras to support large optical zooming to enable far-sighted viewing; some monitoring points require high resolution, which can distinguish floating objects on the surface of the water, or ship identification in the distance. and many more;

In order to be open, the water conservancy departments have information systems for water conservancy informatization, such as flood warning, hydrology monitoring, water conservancy project management, video conferencing, and electronic sandbox. It is necessary to connect and correlate video surveillance with these business systems in order to maximize Play the role of video information in business applications.

Chen also added that in terms of security for water conservancy projects, some perimeter security systems, human body sensors and other alarm systems, access control systems for the computer room, and electronic patrol systems for patrols on the embankments are also used in the area of ​​water conservancy security.