Research And Design Of Pipeline Water Withdrawal Remote Monitoring System

Water is indispensable life resource to the people’s life and indispensable basic nature resource to the economic construction.In order to alleviate the contradiction between the shortage of water resource and low utilization of water resource,it needs to monitor and manage the large-quantity water users.Based on the project of water resources monitoring capacity building in a region,field investigation was took to make sure the situation of water intake quantity oflarge-quantity water users,and the remote monitoring system of pipeline water withdrawal in the paper.The main contents are as follows:From structure and function,the system is can be divided into three parts: wireless sensor network(WSN),the communication and data processing server in monitoring center and the Web software in monitoring center.WSN is responsible for data acquisition and transmition in monitory point.With the addition of CC2591 power amplification circuit,ZigBee chip CC2530 as the core is made up of the ZigBee module interface circuit.The flowmeters and pump detectors are connected to ZigBee module to be sensor nodes that are made up of wireless sensor networks within several router nodes.The data of sensor nodes is transmitted to the sink node through WSN.Sink node transfers data to the communication and data processing server via GPRS.The communication and data processing server is the communication center and data processing center of the system.The socket programming is used to establish the GPRS connection with monitoring point.Multi-thread programming is used to process communication connection,data reception,storage and analysis of multiple monitoring points,and the thread pool technology is used to manage multi-thread.The water intake quantity of monitoring point is taken by a least squares curve fitting.The curve fitting is binded to water pump working state to take intelligent diagnostic data anomalies.To prevent the device from stealing and the data from tampering,the image alignment algorithm is used to identify the image returned from monitoring points to automaticly determine whether there is abnormal situation.The web software in monitoring center is the window of water withdrawal monitoring and management.The structure of center web software is designed and the four functions real-time monitoring,commonly used reports,monitoring and control management and system configuration are achieved.By designing the system,it can not only achieve full monitoring of large-quantity water users in the region,but also it can save a lot of effort and economic costs in the system construction by using of WSN that replace the traditional cable transmission to collect and transfer data.In addition,the intelligent diagnosis of flow data and automatic identification of unusual situation of field devices by using the algorithm of image are more to improve the intelligent level of the system.