The Application And Implementation Of 3D Virtual Reality Technology In Agricultural Experiment Station System

With the development of information technology,the application of virtual reality technology and Internet of Things technology in agriculture has become more and more widely.To present the actual agricultural test area to users visually,a realistic virtual environment will be built through the three-dimensional virtual reality technology,which could help us monitor the environment in real time and observe dynamic process of crop growth in virtual environment.Combining with the Internet of Things technology,it is possible to know the real-time situation,remote control the equipment and study and manage the agricultural test area.Therefore,it is very necessary to design and develop a three-dimensional interactive control system for agricultural experimental stations.This paper adopts the B/S architecture mode,system service providing by server,2.5D interface display function of browser and basic information acquisition function.Combined with JSP for interaction between dynamic and server,and front-loading 3D model will be realized based on JAVA as the system background development language.The PostgreSQL is used as the system space database,to provide spatial information services better,the PostgreSQL database is combined.The three-dimensional interactive control system of the agricultural experimental station mainly realizes the functions of basic map,information display,interactive control of the Internet of Things,three-dimensional display of greenhouse interior and operation and maintenance of the greenhouse.The system uses the three-dimensional virtual reality technology to create a 3D model of the test station through 3DMax modeling and OpenGL visualization to realize the bird's-eye view design of the whole test station;Combining the Internet of Things interactive control technology to build a greenhouse monitoring system for the experimental station,real-time monitoring of crop growth environment(the greenhouse environmental factors),and various types of sensors collecting to environmental factors such as temperature and humidity,light intensity and soil moisture in the greenhouse can be both realized through the data collection function of sensor.Transmitting data to network server by Modbus communication protocol is convenient to judge if the growing environment of the crop meets the scientific requirements in time.In this paper,the agricultural experimental stations are put together in a platform display,which is convenient for users to observe and study the crop growth environment of each experimental station.