| This paper analyzed the current study situation of irrigation area informationization construction and the present irrigation area infomationization construction main problems of our nation. Incorporation with practical situations of Dujiangyan irrigation area and aimed at general need of current irrigation area management branch, studies were made on water conservancy system, irrigation area information platform construction and irrigation area information collection system by using advanced computer technologies such as internet technology and database etc. which were of reference significance for realizing appropriate utilization of water resource at irrigation area. Through analysis and studies of above points, this paper has gained achievements as following:(1) We brought forward the information collection system construction scheme composed of water regimen, rain regimen, moisture regimen and drought regimen. This scheme could make the water, rain, moisture and drought regimen data been delivered to the decision-making body at the shortest time, which could facilitate flood prediction and optimized scheduling, and thus could attain the goal of reducing water conservancy lost and increasing water resource usage rate.Rainfall and water regime collection system mainly consists of the central station, relay station and telemetry stations, in which the central station is made up of the real-time monitoring server, data server, forecast analysis station, communications equipment, power systems, lightning protection facilities and software systems; telemetry stations is mainly made up of the sensor, telemetry terminal, power systems, communications equipment, lightning protection equipment and other components. Moisture collection system mainly consists of soil moisture sensor, moisture telemetry terminals, communications equipment, power supply equipment and lightning protection equipment; drought acquisition system mainly works by remote sensing techniques.(2) The comprehensive information management system, which is composed of canal automatization, gate automatic control and combined scheduling reservoir system, has established the irrigation area information system with both information collection and synthesized information management and achieved automatic collection, entering and handling of all irrigation area information, providing important guarantee for rational water resource allocation of the irrigation area. The canal automation construction includes canal rainfall and water regime data and the engineering conditions data platform, the professional application platform, decision support platform and the simulation platform; gate automatic control system construction mainly consists of the system’s central control room (control center) and gate-site monitoring devices; joint scheduling of the reservoir is mainly composed of multi-reservoir operation.(3)Based on the Dujiangyan irrigation area informationization construction, the economic ecological irrigation system was established to set an example of final-stage canal water-saving ecological technique at four aspects of scientific water management, united water allocation, high-efficient water usage and ecological conservation.The system consists of wisdom real-time canal water amount monitoring and management decision support system, wireless and wired communications systems, and comprehensive information collection terminal etc.(4)On the basis of irrigation area informationization and associated with the importance of information and character of information system construction, we focused on the two aspects of physical safety and information safety to raise up construction requirements for the safety system of information and ensure the smooth informationization implement of the whole irrigation area.Equipment safety mainly consists of physical security, operational safety and management safety; composition of the information security is the inter-network traffic control, access control, rights management and encryption management. |
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