基于GIS的变量喷药决策支持系统

Decision support system for variable-rate spraying based on GIS

为了提高农药喷洒的经济效益,保证食品安全和喷药作业过程中人身安全,该研究将GIS技术应用到精准喷药控制中,并设计了一套变量喷药系统。系统依靠GIS组件,由不同采样点实际检测病虫草害的类别和危害程度,生成病虫草害处方图和最佳的喷药处方图来指导喷药执行机构变量作业;而在田间作业过程中,系统将实时地监测各执行机构状态并接收实际施药信息,并将其与处方图信息进行对比,从而确定施药的精确度。本研究设计的系统不仅可以对病虫草害进行短期预测,而且能够实现喷药的自动控制,使变量喷药更精准,应用更方便。

To increase economic benefit of pesticide spraying and ensure food safety and personal security during spraying process,a variable pesticide spraying system is designed with the application of GIS technology for pesticide spraying control.The system can detect the actual variety and infection of insect,pest and weed of various sampling sites based on GIS components,and generate prescription maps of the infection and optimal spraying which guide the variable operation.In the field operation,the system can monitor the states of all the executive mechanisms and receive the actual spraying information.The precision of pesticide spraying is obtained by comparing the actual spraying information with prescription maps.The system can make short-term prediction,and conduct automatic control,making variable pesticide spraying more precise and convenient to apply.