Water conservancy video monitoring system (II) [example of complete solution]

　　Follow the above: I. Introduction II. System introduction III. software platform

　　3.2.1 integration of video monitoring with water, rain and engineering database

　　The role of a simple video monitoring system is relatively limited. If it can be combined and linked with the water conservancy database, it can grasp the water, rain, work conditions and other information in real time while monitoring, which will significantly promote the correct decision-making of flood fighting and disaster relief.

　　The system software has been combined with the ministerial database of the water conservancy industry, which can obtain the water and rain information of the day in real time and display it synchronously with the video, and further obtain the historical water and rain information. The main functions are as follows:

　　While monitoring the real-time video, users can obtain the water, rain and engineering information of existing gates and reservoirs through the standard real-time water, rain and engineering database table structure.

　　The software can realize the effective linkage of water and rain conditions, work conditions information and video information, which is convenient for leaders and staff to make decisions in time.

　　It can provide video monitoring plug-in to realize the combination and linkage with the existing water conservancy business system and geographic information system.

　　The software can realize the combination and linkage with water, rain and work conditions system in the following two ways

　　Display water, rain and work condition data through web page

　　While seeing the video of a monitoring point, the water, rain and work conditions data of the point are displayed in the form of web page, and the water level and rainfall alarm are carried out in different colors on the web page. As shown in the figure below.

　　2. Superimpose water conservancy information on the video screen

　　The most important rainfall and water level information is directly superimposed on the video, as shown in the figure below.

　　3.2.2 water level alarm linkage

　　In the water conservancy industry, we are most concerned about the water level in Mei flood season and Taiwan flood season. This software can obtain the warning water level in flood season. Once the real-time water level exceeds the warning water level, the system will automatically alarm and link relevant videos to improve the practicability of the system,

　　The software allows the user to set the user-defined alarm water level at a value less than the warning water level, so as to leave enough advance for the staff to deal with.

　　3.2.3 video effect suitable for application in water conservancy industry

　　3.2.3.1 low delay video

　　Due to the suddenness and timeliness of water conservancy events, it is required to respond quickly when conditions occur. According to the requirements of flood control, real-time video with a delay of less than 0.5 seconds shall be realized on the screen of the monitoring center, so as to facilitate the leaders and flood control dispatching management personnel to carry out emergency treatment and dispatching,

　　In this way, when selecting the front-end equipment of the system, it is necessary to select the high-definition video server with low delay, and schedule the buffer during decoding to reduce the delay

　　3.2.3.2 preset bit setting

　　The installation of the camera shall be adjusted according to the position of key water conservancy observation points such as water level gauge, and preset positions shall be set to quickly locate the relevant observation points, as shown in the figure below

　　Water conservancy video monitoring -- Juying Electronics

　　3.2.3 watershed monitoring

　　The software platform has the rotation inspection video function, which realizes the rotation inspection management of the camera, so as to realize the unified monitoring of the key water conservancy facilities in the whole basin, which is in line with the characteristics of watershed management in the water conservancy industry and is convenient for users to carry out daily inspection. During flood control and flood fighting, water conservancy dispatching can also be carried out according to the overall situation of the basin, so as to avoid the problem of improper dispatching caused by only seeing an isolated observation point.

　　As shown in the figure below, the software can observe the images of multiple water conservancy monitoring points at the same time to obtain the overall situation of watershed hydrology.

　　3.2.3.4 hierarchical monitoring

　　According to the different nature of users and network conditions, the software can adapt to the existing water conservancy private network and public broadband networks. On the public broadband, real-time and picture monitoring can be realized according to the different network bandwidth. The software can also be combined with the water conservancy website,

　　Realize the release function of monitoring pictures, as shown in the following table:

　　Network status user nature video effect usage

　　Water conservancy workers (administrators or senior users) in the private water conservancy network or VPN network can see multiple high-definition real-time videos at the same time. They need a user name and password to log in, and can have all functional permissions

　　Public broadband with good network conditions (such as ADSL broadband of Telecom) water conservancy workers or ordinary users who are on business can see all the high-definition real-time video, need user name and password to log in, and can have all functional permissions

　　For public broadband and wireless networks with low bandwidth, visitors or the general public who occasionally use the system can see the monitoring pictures. They can display about 2 frames a second. They can only watch the pictures without users and passwords, and can not control the camera

　　3.2.4 vector electronic map

　　The system supports vector electronic map based on ArcGIS or MapInfo platform, which can realize the general operation of vector electronic map. At the same time, it can directly select the linkage video of monitoring points on the map to realize the Visual GIS (Geographic Information System) system.

　　The system supports GPS track tracking of moving objects. During flood fighting and disaster relief, this function can monitor and plan the action routes of vehicles and personnel.

　　Vector electronic map -- water conservancy monitoring

　　3.2.5 self defined water conservancy events

　　Through this software, the common events such as opening and closing the gate in the water conservancy industry can be defined, and the defined events can be linked with the video. When playing back the video, the video can be queried and played back directly through the events, which is further convenient for the staff to use.

　　Followed by the following: IV. application benefits v. prospect and summary