基于多普勒雷达和北斗系统的农业机械测速方法研究  

Research on Speed Measurement Methods of Agricultural Machinery Based on Doppler Radar and BDS

作　　者：马付远 张明宇[2] 徐伟利 Ma Fuyuan;Zhang Mingyu;Xu Weili(College of Engineering and Technology,Jilin Agricultural University,Changchun 130118,China;Jilin Agricultural Machinery Research Institute,Changchun 130118,China)

机构地区：[1]吉林农业大学工程技术学院,长春130118 [2]吉林省农业机械研究院,长春130118

出　　处：《农机化研究》2023年第9期150-154,共5页Journal of Agricultural Mechanization Research

基　　金：国家重点研发计划项目(2017YFD0700505-3);吉林省重点科技攻关计划项目(20190301021NY)。

摘　　要：作业速度是变量施药中很重要的因素,单位作业面积施药量固定不变的话,可以根据作业速度来实现相应的喷头流量,达到变量施药目的。因此,作业速度采集的精度高低直接影响到喷头流量的精准程度。为此,针对作业速度采集精度进行了试验,研究了多普勒雷达测速和BD-8953DN接收机采集精度对比,结果表明:BD-8953DN接收机在水泥地条件下的测速雷达输出的速度值比较平稳,速度偏差率小,与平均速度符合较好,测速精度高;而在灌溉翻耕地条件下的测速雷达速度偏差率最大,达到6.0%,测速精度最低。研究结果为如何选择更好的测速装置提供了重要依据。Operating speed is a very important factor in variable pesticide application.If the application rate per unit area is fixed,the corresponding nozzle flow can be realized according to the operating speed to achieve the purpose of variable pesticide application.Therefore,the accuracy of the operating speed collection directly affects the accuracy of the nozzle flow.Aiming at the accuracy of operating speed acquisition,tests are used to study the comparison of the acquisition accuracy of the Doppler radar speed measurement and the BD-8953DN receiver.The results show that the speed value output by the BD-8953DN receiver and the speed measuring radar under cement ground conditions is relatively stable,the speed deviation rate is small,and it is in good agreement with the average speed,and the speed measurement accuracy is high.The speed deviation rate of the speed measurement radar under the condition of irrigated and plowed land is the largest,reaching 6.0%,and the speed measurement accuracy is the lowest.The study provided an important basis for how to choose a better speed measuring.

关 键 词：农业机械 多普勒雷达 北斗系统 速度测量 变量施药 

分 类 号：S126[农业科学—农业基础科学]