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

Author

Hong, Chen ; Yingjie, Yu ; Shuhui, Zhang

Author_Institution

Nanjing Inst. of Ind. Technol., Nanjing, China

Volume

2

fYear

2012

fDate

18-20 May 2012

Firstpage

1062

Lastpage

1066

Abstract

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 sensor´s 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 motor´s 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 40m×40m and satisfy the requirements of variable rate fertilization.

Keywords

fertilisers; stepping motors; velocity control; automatic grid recognition; error correction; ground speed calculation; step motor rotational speed; track distance calculation; track distance reckoning; variable rate fertilization control system; variable rate fertilizer applicator; velocity sensor pulse signal reading; working grid recognition; RNA; Grid recognition; Reckon up track distance; Variable rate fertilization;

fLanguage

English

Publisher

ieee

Conference_Titel

Measurement, Information and Control (MIC), 2012 International Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4577-1601-0

Type

conf

DOI

10.1109/MIC.2012.6273483

Filename

6273483