摘要
为了获取农田作物产量分布信息,发展数字农业,研究了机收时粮食产量分布信息的获取和分析方法。借助于全球定位系统和地理信息系统,经过坐标转换等数据处理,快速生成计划收割区域的数字地图,在机载计算机上实时显示联合收获机行走的轨迹。对测产系统各传感器信息进行数据处理,由动态产量数据值及其定位信息,实时绘制采样点粮食产量分布图,结合割台高度信息,实时获取收获面积。借助于后处理手段,对实测数据进行空间数据分析,得到准确的粮食产量分布。本系统能快速生成待收割区域的数字地图,能实时显示联合收割机行走轨迹、产量波形曲线、产量分布图,实时显示收割面积。粮食产量分布信息数字化,为精准农业生产提供指导。
To acquire grain yield distribution information and develop digital agriculture, a method for acquiring and analyzing yield data at harvesting time was studied. By Global Positioning System（GPS） and Geographical Information Systems（GIS）, after coordinate transformation and other data processing, digital maps of the territories were obtained, and the combine track was displayed in the digital map dynamically. Through disposing the data of the yield-instrument sensors and GPS receivers, yield wave curve and a yield map of the sampling points can be generated and revealed according to the yield data together with its corresponding coordinates. Through the header height, real-time reaped area was calculated. During post treatment, spatial analyses were made to attain the yield distribution. Experiments show that the system can create a digital map rapidly, and display the combine track and the reaped area synchronously. The digitization of grain yield distribution can provide guidances for farming production scientifically.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2006年第9期133-137,共5页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家863计划(2003AA209012和2003AA209040)
关键词
粮食产量
数字化
全球定位系统
坐标转换
数字地图
轨迹显示
产量图
面积量算
grain yield
digitization
Global Positioning System
coordinate transformation
digital map
track display
yield map
area calculation
作者简介
苑严伟（1980-），男，河南周口人，主要研究领域为检测与控制、3S等。北京德外北沙滩1号25#中国农业机械化科学研究院，100083。Email：yyw215@yahoo．com．cn
通讯作者：张小超（1957-），男，南京人，研究员，博士，主要研究领域为农业机械自动控制与智能化仪器等。北京德外北沙滩1号25#中国农业机械化科学研究院，100083。Email：zxc@caams．org.cn.
