Design And Implementation Of Water Environment Parameters Factor Acquisition System Based On WSN

With the acceleration of economic development,negative effects on the environment becomes increasingly obvious,especially it damages to the water environment has affected people’s normal living needs.Thus,it is an important way to protect water resources by improving the capabilities of the real-time monitoring.Traditional water environment monitoring methods have their different advantages,but the prevalence of the same disadvantages is their poor real-time abilities,which can not be monitored sudden water pollution incidents;small monitoring range,unable to meet the large-scale water monitoring needs.The wireless sensor network as an advanced network-aware system,it has a long-distance wireless transmission,real-time data acquisition function,and it can be widely applied in more and more areas.This thesis designed and developed a water-based wireless sensor network environment parameters factor acquisition system by analyzing the characteristics and applications of wireless sensor networks,combined with the waters subject objectives specific application environment,in full consideration of the characteristics of water pollution and the surrounding factors of the case.The system consists of three parts: the front sensor data collection network,water environmental perception terminal and M2 M remote monitoring and management platform.This system uses the water environmental perception terminal to complete the deployment of the front sensor networks,scheduling and acquisition front-end sensor networks,real-time data upload up to M2 M remote monitoring and management platform through wireless transmission,and then complete the water pollution parameters in real-time collection,management enhance the ability to respond to sudden pollution incidents.The main content of this paper is based on the front-end 470 MHz transmission of sensor data collection network and the water environment perception sensor data acquisition front-end terminal network system management and scheduling.This paper elaborated on the system from three important components of software design and hardware design,respectively.Hardware mainly include: water environment sensing terminal circuit design,GPRS wireless communication module design,power circuit design;software part includes: sensing terminal management system design,used inMODBUS application layer transport protocol designed to collect data transmission,applied to the Terminal and data reporting platform WMMP transport protocol design,M2 M platform design and remote control programming.In addition,the issue also introduces the system senses that the terminal scheduling method,and sensor devices for the network clock synchronization accuracy is not high,is proposed based on IEEE1588 precision clock synchronization protocol algorithm.Finally,the perception terminal respectively on the water environment,the front sensor networks and M2 M platforms tested according to requirements of the subject,depending on the test target to complete the system testing.Test results show that: the system can effectively complete the different environmental factors water collection and real-time monitoring of water environment task.