The Design And Implementation Of Flood Control And Drought Relief Command Drought Analysis System For Weifang City Base On J2EE

Because of the poor information and communication technology, most of the water level, rainfall information from reporting station is collected by manual or semi automated equipment for a long time, that cause the poor timeliness. To adapt to the new situation of social transform in China. The Ministry of water resources put forward to building a flood control and drought relief command system with automation and information technology, to realize of data acquisition automation, flood drought analysis automation, highly coordinated of command system, then to realize the early warning of flood control and drought, early preparation and timely disposal. Drought analysis in flood control and drought relief command is undoubtedly the most important link, Only an quick and accurate analysis of drought can give a early warning for a region, The important of flood control and drought regions has been basically completed the drought data acquisition automatically by automation equipment, basic realization of the drought information acquisition, but for the drought information analysis and comprehensive utilization are still failed. Therefore, the urgent requirement in the water sector is to establish a flood control and Drought Relief Command drought analysis system that can support large-scale data processing, distributed transaction processing, real-time data access and also can run on different platforms.According to the functional requirements of flood control and Drought Relief Command drought analysis system, considering the expansion of the system needs in the next few years, the system uses B/S pattern, based on the J2EE architecture. The middle layer of software using JSP/Servlet/JavaBeans/Spring technology to structure, strictly follow the J2EE standard, with good portability, scalability, can be used across different platforms. Sharing for maximum range the drought analysis system for preventing draught and flood, meet the use at all levels of drought resistant business department, decision-making departments, to maximum play the roles of drought analysis system for preventing draught and flood.Drought analysis system for preventing draught and flood as a business application system in municipal drought management department, According to the preliminary design of the first phase of the project requirements from State Flood Control and Drought Relief Command System, mainly used for standard drought information collection, management, analysis and reporting procedures, to realize the drought management informatization. The system using remote sensing, hydrology, meteorology, agriculture and other information, using a variety of methods to make a reasonable choice, through the comprehensive judgment to estimates of drought index and comprehensive index, to format a standard drought monitor and forecast business processes, The main implementation of meteorological drought analysis query module, hydrological drought analysis query module, remote sensing for agriculture drought analysis query module, drought prediction query module and system management module.The operation of the system in the form of charts and statistics and output the drought monitoring and analysis data by in different periods of day, four months, per month and season, to reflect the drought situation and drought changes information in future short-term. To forecast and monitoring the drought in local places, provide a scientific basis and decision support for guiding the preventing draught, water resources arrangement and agricultural production.