基于GPS模块的便携式农田面积测量仪  

A portable instrument for measuring field area based on GPS module.

作　　者：裘正军[1] 应霞芳[1] 何勇[1] 

机构地区：[1]浙江大学生物系统工程系,浙江杭州310029

出　　处：《浙江大学学报（农业与生命科学版）》2005年第3期333-336,共4页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：国家自然科学基金资助项目(30270773);高等学校博士学科点专项科研基金资助项目(20040335034);浙江省自然科学基金人才基金资助项目(R02067);浙江省科技厅重点资助项目(2005C21094);浙江省教育厅资助项目(20030290).

摘　　要：全球定位系统在精细农业中起着十分重要的作用,本文利用GPS的定位功能,研制了农田面积快速测量仪.测量仪由低成本的GPS模块、单片机数据采集板、键盘及LCD显示等组成.给出了GPS定位信息的获取技术,多边形农田面积的计算方法,测量仪软硬件的设计原理等.试验结果表明测量仪能够快速测量任意形状农田的面积,相对测量误差小于2%,并且农田面积愈大,测量的相对精度愈高.Global Positioning System plays an important role in precision agriculture. In this study, a new instrument was developed to measure field area based on GPS module. The instrument mainly consists of a low-cost GPS module, a micro-controller based data acquisition board, a keyboard, and a LCD display. The acquisition of GPS positioning information, method of area calculation for polygon fields, and design of hardware and software of the instrument were also introduced. Tests showed that the instrument was capable of rapidly measuring fields of any shape, the relative test error was less than 2 percent, and the measuring accuracy was improved to suit its application in larger fields.

关 键 词：农田面积 测量仪 GPS 精细农业 

分 类 号：S237[农业科学—农业机械化工程]