Research on Calibration Method for Tractor Automatic Navigation Control System
Qun Sun1, *, Shaomin Teng2, Yongqi Du2, Ze Kang3, Chengqiang Yin1, Linlin Chen1
1 School of Mechanical and Automotive Engineering, Liaocheng University, Liaocheng 252059, China
2 Menoble Co., Ltd., Beijing 100083, China
3 Chinese Academy of Agricultural Mechanization Science, Beijing 100083, China
Abstract
A lower computer control system of tractor automatic navigation based on double-antennas Beidou satellite is developed, including the controller unit, bipolar output unit, RS232 bus communication unit, a switch reset unit and the power conversion unit. To obtain a continuous voltage output, the calibration method of lower control system using least square method to fit calibration curve has been studied. The lower computer control system receives navigation angel and navigation angel offset instruction provided by the host computer through RS232 bus communication unit. Continuous voltage from -10V to +10V is output through the bipolar output unit to adjust hydraulic valves to control the tractor steering after these are processed by the lower computer.
Keywords: Automatic navigation, Calibration, Lower control system, Least Square Method, Tractor.
Article Information
Article History:
Received Date: 29/02/2016
Revision Received Date: 06/07/2016
Acceptance Date: 15/07/2016
Electronic publication date: 15/11/2016
Collection year: 2016
© Sun et al.; Licensee Bentham Open
open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (
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* Address correspondence to this author at the School of Mechanical and Automotive Engineering, Liaocheng University, No.1 Road Hunan Road, Liaocheng, Shandong, China; Tel: 86-0635-8239988; E-mail:sunxiaoqun97@163.com
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Manuscript submitted on 29-02-2016 |
Original Manuscript |
Research on Calibration Method for Tractor Automatic Navigation Control System |