Research And Realization Of Central Station Of Hydrology Measuring And Forecasting System

To design a hydrology automatic measuring and forecasting system,and to realize that hydrology information is intelligently measured and forecast automatically, can put reservoir's real-time spatial and temporal distribution of rainfall and hydrology conditions of the development trend under control,make flood forecasting more scientific,accuracy,timeliness,increase the reservoir's flood control forecast ability,and meet the needs of reservoir flood control.At the same time,modern management can increase the level of the reservoir and improve the efficiency of the reservoir,and provide a scientific basis for decision-making of decision-making departments.Hydrology automatic measuring and forecasting system mainly constructed with two parts,and they are hydrological telemetry station and central station.Hydrological telemetry station automatically acquire the data of rainfall,water level,temperature,humidity,and other real-time data,and using GPRS/SMS means of communication,through the construction of the mobile communication network built by the telecommunications sector,transmit data to the central station.Central station's data reception/monitoring system will receive the raw data carefully with debugging,classification,and then save them in hydrological database.Central Station establish a small computer network,connecting the central station's data reception/monitoring system,provide the original hydrological information for business such as flood forecasting,hydrological information, hydrological data integration and so on..This paper designed to achieve the central station of Hedi reservoir hydrology automatic measuring and forecasting system,mainly designed from the in the sense of three-tier structure.The first tier is named hydrology information forcasting system,which is responsible for information dissemination and user interaction.It will send operating instructions to the bottom communication tier,and dynamicly read and write database (second tier).The second tire is hydrological system database,which is responsible for recording all the hydrology data,the central station parameters,the lower remote terminal's parameters,logs etc.The third tire is Communications programme tire,which is the communications tire design,and is mainly responsible for the lower remote terminal's communications services,and the record of all hydrological information,such as hydrological data and log information.This tire can be divided into three sub-module.1.The interface program connecting from hydrology information forcasting system to the bottom service,named Webcom procedures,using UDP Socket as a link.2.Communications service program,named Water,this procedure is programmed to receive command from Webcom procedure and then send operations to control the implementation of wireless digital terminal,monitoring GPRS data ports to receive hydrology data and save them into the database.3.A dedicated debugging information display program, named Print program,it is used to show debugging information,by the means of combination of console information directly display and Socket_received information shows.Finally,all tires' integration and coordination in the system is designed and discussed.