The Design And Implementation Of The Ecological Environment Real-Time Monitoriing System Of Nanji Wetland

Nanji wetland is a national nature reserve,located in the southwest bank of Poyang Lake,and is located in conjunction area of water and land transition zone of the Ganjiang river basin into the Poyang Lake.With the coming of spring and summer,the water level of the lake keeping grow high,when it comes to autumn and winter,the water are gone leaving with many small lakes.Due to the structures and functions of Poyang lake watershed ecosystem include complexity,the particularity of geographical environment,history and human activity disturbance.Nanji wetland is a typical area on the comprehensive research of Poyang lake wetland ecosystem safety as an ideal base^[1].Because the Nanji wetland is a typical area of Poyang lake basin.Therefore,it is of great significance to monitor the area with corresponding monitoring methods.In the Nanji wetland monitoring,the conventional approach methods includes field-based inspection,sampling,setting up field monitoring stations and using 3S technologies.Those conventional monitoring methods have the following limitations:low frequency,high cost,data with low quality and lack of time and space continuity.The Nanji wetland itself presents characteristics of high water level dynamic change,and the increasingly frequent human activities with the new development of ecotourism,which bring the challenges for the local ecological environment.Therefore,it is necessary and urgent to use modern technologies to monitor such high dynamic changes of wetland environment.In this paper,according to the characteristics of the Nanji wetland,selected the water qualities,weather conditions,video,Unmanned Aerial Vehicle image monitoring indicators,using the Internet of things technology and UAV remote sensing technology,design a set of real-time monitoring system in the Nanji wetland ecological environment.This paper has carried out the work of the following two main components:1.Continuous monitoring of single point of water ecological environment based on floating buoy.This part realized the continuous monitoring of the main lake water and the sub-lake water of Poyang Lake.Monitoring data were transmitted by the microwave communication,Zigbee and commercial Internet data in real-time,which enables monitoring data to be interactive with database for storage,analysis,visualization,and the application layer and policymakers turn data into efficient information,which provide solution for wetland monitoring and management.2.Monitoring of the range of water ecological environment based on Unmanned Aerial Vehicle.UAV monitoring the specific wetland ecological environment in the Nanji wetland,combined with the existing four-rotor UAV,carried a CCD digital camera,multi-spectral image and video sensors,through high-definition digital transmission technology to implement,real-time monitoring of wetland ecological environment,collecting the corresponding geographical environment data,aerial panoramic images,and videos and panoramic data.In this paper,the real-time continuous monitoring of Nanji wetland is tested and implemented.Thus,the high quality and high frequency data of the specified region based on time and space sequence is obtained,include water quality and meteorological data,video monitor data and UAV image data.