Design And Implementation Of Mobile GIS Technology And System For Forest Environment Parameters Monitoring

With the wireless network transmission and other related technologies and embedded hardware level of the promotion and rapid development,intelligent applications began to penetration into people's daily life in different areas.Simultaneously,the monitoring and protection of ecological areas such as forestry also need intelligent management.While the vegetation attributes and spatial geometric parameters in the forest will change with the influence of time and ecological environment,so that the attribute data in the forest environment will be different at different times.This real-time nature of the impact of forestry management departments related to the decision-making,so we need real-time access to different times under the forest environment parameters.In the view of this situation,a variety of sensors are used to monitor the forest environment parameters in real time and to design and develop real-time dynamic monitoring system of forest environment with ZigBee and GIS technology.The system is divided into hardware sensing layer and application layer.The hardware sensing layer is based on ZigBee wireless ad hoc network hardware wireless sensor network,with Xilinx ZC702 development platform as the CPU of the sensor nodes,combined with wind speed,wind direction,temperature,humidity,PM2.5,negative oxygen ions,GPS and other sensors in real-time monitoring which can monitor the dynamic changes in forest ecological environment parameters.The system can realize the real-time acquisition and analysis of the ecological parameters of the forest,to achieve the forest nature reserves of ecological parameters of real-time collection and analysis.The sensing layer and the application layer can realize the bidirectional transmission of data through the general packet radio service technology,and finally realize the dynamic data display and analysis of GIS on the iOS mobile client.The paper mainly focuses on the research of GIS data display platform,and combined with mobile GIS technology to achieve the system in the iOS mobile terminal.The GIS system can display the terrain and sensor node information in the forest protection area,and can edit and save the data online.Through the processing and analysis of the data,we can realize the real-time dynamic collection and display of forest environment parameters in different time.After the research on the real-time GIS technology,based on the built-in Wireless Sensor Networks(WSN)system,this paper has been designed and developed according to the functional modules.Through the analysis of outdoor data acquisition experiment and the result of integration test,the feasibility and stability of the system are verified,and the design goal of real-time display and analysis of multi-sensor in mobile client is realized.