Authors

Abstract

Farmland area data is one of the important agricultural basic data, which provides parameter basis for the precise operation of agricultural equipment. In order to meet the technical needs of farmers and agricultural machinery operation service billing for acquiring basic information of farmland, this study proposes a farmland area measuring instrument based on the Beidou Navigation Satellite System. Firstly, the overall design scheme of the measuring instrument, the hardware circuit design scheme and the algorithm design scheme are introduced, and the triangulation area measurement algorithm is emphatically analyzed. Finally, the design of this research is applied. The farmland area measuring instrument measures the area of different shapes of farmland and verifies the measurement accuracy. The results show that the average relative error of the measuring instrument for measuring the area of irregularly shaped farmland is 0.7%, which realizes the rapid and high-precision measurement of the area of arbitrarily shaped farmland. It is hoped that this study can provide some reference for the research on the area measurement of farmland in my country.

Abstract in Chinese

农田面积数据是重要的农业基础数据之一，为农业装备实现精准作业提供参数依据。为满足农户和农机作业服务计费等市场对获取农田基本信息的技术需要，本研究提出一种基于北斗卫星导航系统的农田面积测量仪。首先，介绍了测量仪的总体设计方案，硬件电路设计方案和算法设计方案，着重分析了三角剖分面积测量算法设计。最后，应用了本研究的设计。农田面积测量仪测量测量不同形状农田的面积，并验证测量精度。结果表明，测量仪对不规则形状农田面积测量的平均相对误差为0.7%，实现对任意形状农田面积的快速高精度测量。希望这项研究能为我国农田的面积测量研究提供一定的参考。