| 基于传感器的变量施肥机定位方法 |
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| 引用本文： | 于英杰,张书慧,齐江涛,张林焕.基于传感器的变量施肥机定位方法[J].农业机械学报,2009,40(10):165-168. |
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| 作者姓名： | 于英杰 张书慧 齐江涛 张林焕 |
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| 作者单位： | 吉林大学生物与农业工程学院,长春,130025 |
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| 基金项目： | 国家“863”高技术研究发展计划资助项目(2006AA10A309);;吉林省科技发展计划项目(20060213-3);;吉林大学研究生创新基金资助项目(20091017) |
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| 摘 要： | 简述了一种应用传感器代替GPS的变量施肥机定位方法。控制器读取传感器的脉冲信号,计算施肥机的行走距离,由自动网格识别算法实现施肥机自动网格识别。本文给出了传感器测距累积误差校正方法以提高定位精度。对于垄长为40m的网格,要使定位误差小于6%,累积误差应小于2.4m。实验结果表明,经过校正,拖拉机行走距离为250 m的时候,光电编码器和接近开关传感器测距累积误差分别为2.32 m和2.34 m(定位误差小于6%)。如果在此定位误差条件下,增加操作单元垄长方向划分的距离,可满足更长地块作业的定位要求。
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| 关 键 词： | 变量施肥机 传感器 定位 |
of Variable Rate Fertilizer Applicator Based on Sensors |
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| Yu Yingjie,Zhang Shuhui,Qi Jiangtao,Zhang Linhuan.of Variable Rate Fertilizer Applicator Based on Sensors[J].Transactions of the Chinese Society of Agricultural Machinery,2009,40(10):165-168. |
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| Authors: | Yu Yingjie Zhang Shuhui Qi Jiangtao Zhang Linhuan |
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| Institution: | College of Biological and Agricultural Engineering;Jilin University;Changchun 130025;China |
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| Abstract: | A positioning method of a variable rate fertilizer applicator with sensors is introduced,to replace GPS in precision agriculture.In the positioning system,the controller receives pulse signals from the sensor and calculates the working distance of the variable rate fertilizer applicator,thus the grid in which the fertilizer applicator is working is identified by the algorithm of automatic grid recognition. The accumulative error of the system from the sensor is corrected by the error revising algorithm,and ... |
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| Keywords: | Variable rate fertilizer applicator Sensor Positioning |
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