Design Of Water Quality Monitoring System Based On Wierless Sensor Network

Water quality on-line monitoring system is an important measure for water quality real-time monitoring and management.At present,the domestic water quality monitoring method is mainly through the construction of a fixed site,although also can real-time understanding of the situation of water quality,but this method requires a very high cost,and the operation and maintenance are very unfavorable.In addition,it can be fast and flexible deployment,and the application cost,effectively avoid the traditional method subjectivity,monitoring scope limitation,difficult to deal with sudden water pollution.According to the basic theory of wireless sensor network,and combining with remote data transmission technology,design a set of data acquisition,data transmission,data processing and visualization as one of the online water quality monitoring system,the research of node communication in wireless sensor networks,water quality index data collection,database management and other issues,so that the system can be very good complete the data acquisition,data transmission and management system through the monitoring center convenient query to regional water quality monitoring.This paper mainly completes the following work:(1)To complete the domestic and international water quality online monitoring system literature review,sum up the domestic and foreign research status of water quality monitoring.(2)The hardware design and implementation of wireless sensor network node for water quality online monitoring system.Including chip selection,CC1101 module,SIM900 A module,water quality monitoring module and STM32F103 ZE core circuit and peripheral circuit design.(3)The software design of on-line water quality monitoring system is completed.Including CC1101 module point to point,point to multipoint communication,GPRS remote communication,data acquisition program design.(4)The software design of the monitoring system is completed.(5)The performance of the on-line water quality monitoring system is tested.Mainly CC1101 communication capability test.