Variable rate fertilization control system based on reckoning track distance and its application

摘要：

Developed a control system based on reckon up track distance for a variable rate fertilizer applicator without GPS. The control system is able to read the velocity sensors pulse signal, calculate the ground speed and track distance of the fertilizer applicator, and recognize the working grid by means of the algorithm of automatic grid recognition after error correction. And then, the control system controls fertilizer output by change the step motors rotational speed according to the prescription data saved in the control system in advance. The field experiment results showed that maximum error of fertilizer output is 4.11％ in a grid field of 40mx40m and satisfy the requirements of variable rate fertilization.

关键词： Variable rate fertilization Reckon up track distance Grid recognition

作者: Chen Hong Yu Yingjie Zhang Shuhui

作者单位: Nanjing Institute of Industry Technology Nanjing, China Faculty of Modern Agricultural Engineering Kunming University of Science and Technology Kunming, Chi

会议类型: 国际会议

会议名称: 2012 International Conference on Measurement,Information and Control(2012测量、信息与控制国际会议 ICMIC2012)

会议地点: 哈尔滨

会议语种:英文

页码: 1044-1048

在线出版日期: 2012-05-18（万方平台首次上网日期，不代表论文的发表时间）