Necessity analysis of water conservancy and reservoir intelligent security
The stable operation of the water conservancy system is directly related to economic development and people's livelihood, and is the lifeblood of basic industries such as industry and agriculture. Therefore, the effective maintenance of the water conservancy system is of great importance. The water conservancy system of a province is administratively divided into provincial water conservancy departments to each The municipal water conservancy bureau, then the county water conservancy bureaus, and the water conservancy stations in various townships, etc. The town water conservancy stations are the forefront organizations of the water conservancy system, and are directly responsible for the size of reservoirs, daily agricultural industrial water use, flood control and flood control, and infrastructure maintenance in the area. In addition, water quality monitoring and shipping management are also gradually taken care of by the water conservancy department. Therefore, the work of the water conservancy system involves all aspects and is relatively complicated.
In view of the current water security market, a stable, multi-functional, highly integrated and intelligent system is necessary. Only such a system can assist the water conservancy system to handle many tasks and provide timely work for the water conservancy system staff. Effective data and support ensure the healthy operation of the water conservancy system.
The following author takes unattended intelligent water conservancy monitoring as an example to introduce the architecture and characteristics of intelligent water conservancy security systems, as well as the application of emerging technologies such as intelligent analysis.
Basic needs of water security construction
Before introducing this set of monitoring system, we must first analyze the specific status and needs of the water conservancy security system, and build a security system based on the demand.
Taking the structure of the county-level water affairs bureau as an example, the distribution of water resources in the north and south of China is uneven. The number of reservoirs and rivers in a county is variable, and the number of corresponding water conservancy stations varies greatly. There may be fiber optic groups between each water conservancy station and the water bureau There is no network connection, and the span of the reservoir is large, the environment is harsh, the cost of re-pulling the fiber is high, and the possibility of expanding the bandwidth is not large. The county-level water affairs bureau can realize the township-level water conservancy bureau as the lower level under the existing conditions. Build multi-level network monitoring of regional water conservancy systems including this level, and reserve interfaces for large-scale networking of all reservoirs in the province in the future, realize system configuration modularization, increase and decrease convenience, etc. The brief requirements can be summarized as follows.
· Real-time call of audio and video at the station end can be realized, 24 hours a day of uninterrupted recording, the recording effect is clear and discernible, and the recording data is kept for more than one month;
· Realize the anti-theft and surrounding prevention of various water conservancy stations. If there is an abnormal situation, upload the alarm situation and video screen to the monitoring center in real time and have a local warning function;
· Real-time view of the operation status of key equipment rooms and equipment rooms in the subordinate stations;
· Need to know the temperature and humidity of the communication room and battery room at any time;
· Detailed identification records and operation information records should be provided for personnel entering and leaving the reservoir;
Realize real-time two-way intercom between on-site maintenance personnel and center staff;
· Realize micro-meteorological monitoring around the reservoir, mainly wind speed and direction;
· Achieve water leak detection in key computer rooms;
Real-time monitoring of reservoir water depth, water quality, etc .;
· The monitoring system itself must have lightning protection device;
Requires outdoor equipment to have sufficient waterproof, low temperature and high temperature resistance levels;
· There are corresponding emergency, alarm and linkage measures for any monitoring information;
· Important alarm information should be actively notified to relevant functional personnel through SMS or telephone;
· The system has a multi-level structure and authority management to ensure that township and county staff can complete their work under the same system.
In response to the above requirements, unattended intelligent water conservancy security system came into being.
Equipment selection-the core of the project design
Intelligent video monitoring solution for reservoir application
Aiming at the on-site environment of water conservancy and security, this case adopts an infrared dome camera with air-cooling heating function, an anti-riot head camera, an anti-riot shield gun-type camera, an indoor low-power hemisphere machine, etc., integrated infrared radiation equipment, electronic fence equipment , Wind speed sensors, temperature and humidity sensors, water immersion sensors and other industrial grades also have strict requirements. These devices have been successfully applied in Northeast and South China and other regions. They can also provide different movements and lenses for panoramic monitoring and detail monitoring. Equipment with intelligent analysis (IVS) function can also be applied to this system, such as automatic video tracking around the reservoir and over-limit alarm.
The core host part can be selected with unique unattended workstation equipment, which has rich interfaces and can be accessed by device types including: video front end, temperature and humidity sensor, water immersion sensor, access control controller, water level detection, and anti-theft alarm.
The interfaces of these devices are all integrated into this device. The host can not only access all front-end collection devices, but also realize alarm information collection and alarm linkage by itself. Access control equipment can be installed in the reservoir machine room, and illegal card swipe access control can be linked with camera to capture, record, alarm, etc. In addition, the application of this device completely avoids the incomplete or lost information caused by network problems. All information saving and linkage actions are completed by the front-end host, and can be connected to the SMS alarm module. Even if the network is not available, it can be notified to the background in real time. When the network is stable, the alarm information can be automatically uploaded for the staff to view, so that the front end and background are correct, and it shows good results in the application of existing projects.
Platform software-the skeleton of the entire program
Although unattended workstations can work independently, a practical and efficient platform is an indispensable framework for intelligent water conservancy network monitoring. It needs to centrally manage all front-end devices, analyze uploaded data, issue commands, and so on.
Stimulated by the trend of smart reservoir monitoring requiring large-scale networking, a set of software platforms with distinct modules, complete functions and novel architectures emerged. The platform is based on a middleware architecture, adopts oracle large-scale database, and the servers are distributed and uniformly managed.
Platform composition (only main equipment is listed):
· Master control management server: responsible for parameter setting and equipment management of the entire system;
· Proxy forwarding server: complete the data forwarding of the entire system to ensure that the user's data query is not hindered;
· Centralized storage server: There are multiple mid-location servers to choose from, and complete the storage of all system data;
GIS map server: it can mark the location of the reservoir and water conservancy station on the GIS map, directly enter the management interface of a single reservoir through the electronic map, complete data query and video monitoring and other actions;
· Decoding HD matrix: used for large-screen display of system video and data.
The master control server centrally manages all front-end hosts and data channels, and issues different access rights and access rights for different reservoir managers. All staff of the water conservancy system apply the same set of software, and the proxy forwarding server provides data for all background users. The forwarding function ensures smooth video browsing and data query. The map server and other equipment are enriched with software functions. The staff of the county-level water affairs bureau can intuitively see the location of each reservoir and water conservancy station and current department operation information from the GIS map. , Alarm information, and can be linked to the video screen display on the map, which greatly improves the management efficiency of the reservoir in the area and the efficiency of troubleshooting and maintenance.
This large platform supports more than 100,000 channels of data access. The multi-level architecture and modular design can support the construction of provincial water conservancy and security platforms, and it has both environmental, power, audio and video monitoring and management functions.
Conclusion
Water security is not an emerging market, but water security is facing a new form. Multi-service processing is more important than video surveillance itself. Therefore, multiple data collection, multiple system integration, multiple data unified management, intelligent analysis, High-definition is the development direction of water security in the future.
This article gives a brief introduction to the security scheme of the water conservancy system. The system can realize the network monitoring of the county-level water conservancy department and the township water conservancy departments and front-end water conservancy stations and reservoirs, which provides a guarantee for the safe operation of the water conservancy system. The system configuration is flexible and can be expanded Become a provincial platform, add intelligent analysis functions and so on.
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