Research On The Application Of UAV In River Water Quality Monitoring Wireless Sensor Network

Water quality monitoring has always been an important subject in the development of society.Thanks to the development of wireless sensor networks,water quality monitoring combined with WSN has become smarter and easier.In the WSN water monitoring system,for monitoring long-distance and large-area monitoring waters,extracting data from water quality monitoring has become a difficult problem due to the limited distance of wireless communication,and the arrangement of wired networks to transmit data is a lso faced with high cost,wiring arrangement and maintenance difficulties.In view of the above problems,the UAV is introduced into WSN water quality monitoring system,using the high maneuverability of the drone,acting as a mobile extraction node to ext ract the data of each water quality monitoring node,ensuring the use of a limited range of wireless communication,to achieve large-scale,long-distance water quality data extraction,saving system costs and improving the flexibility of monitoring.In this paper,Four-rotor UAV is used to carry wireless communication module,and combined with sensor module,UAV platform and WSN water quality monitoring platform are constructed respectively.Through modeling analysis and attitude calculation of UAV,a cascade PID controller is designed to ensure the stability of UAV flight.In the flight path planning of the UAV,the pre-processing analysis of the monitoring node is first aimed at the monitoring area,the suitable node is selected as the cluster head,and the flight burden of the drone is reduced.The introduction of a corner-splitting line method further optimizes the flight path of the UAV extracts the data,shortens the flight distance,and improves the aviator’s capability,work efficiency and system flexibility.Finally,The correctness and reliability of the system control scheme are verified.