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Agricultural machinery navigation and position method and system and agricultural machinery industrial personal computer

A technology for agricultural machinery, navigation and positioning, applied in the field of communication, to achieve the effect of overcoming low positioning accuracy, high stability, and high positioning accuracy

Inactive Publication Date: 2012-08-22
CHINA AGRI UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a navigation and positioning method and system for agricultural machinery and an industrial computer for agricultural machinery, so as to be suitable for the navigation and positioning of agricultural machinery in field operations and overcome the single The defect of low positioning accuracy of sensor positioning and combination method is suitable for complex and changeable field operation environment with high positioning accuracy

Method used

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  • Agricultural machinery navigation and position method and system and agricultural machinery industrial personal computer
  • Agricultural machinery navigation and position method and system and agricultural machinery industrial personal computer
  • Agricultural machinery navigation and position method and system and agricultural machinery industrial personal computer

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Embodiment Construction

[0037] image 3 A schematic diagram of converting positioning information to the same coordinate system provided by the embodiment of the present invention;

[0038] Figure 4 A schematic diagram of a vehicle two-wheel kinematics model provided by an embodiment of the present invention;

[0039] Figure 5 Calculation flow chart of the Kalman filter algorithm provided by the embodiment of the present invention;

[0040] Figure 6A The schematic diagram of the first fuzzy control algorithm provided by the embodiment of the present invention;

[0041] Figure 6B A schematic diagram of the second fuzzy control algorithm provided by the embodiment of the present invention;

[0042] Figure 7 A schematic diagram of the input and output membership functions of the first fuzzy control algorithm provided by the embodiment of the present invention;

[0043] Figure 8 A schematic diagram of the input and output membership functions of the second fuzzy control algorithm provided ...

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Abstract

The invention relates to an agricultural machinery navigation and position method and a system and an agricultural machinery industrial personal computer. The method comprises the following steps: respectively receiving the current agricultural machinery positioning information obtained by a global satellite positioning system, an inertia measurement unit and an electronic compass; converting thepositioning information to the positioning information under the same coordinate system; and using a Kalman filtering algorithm to carry out data fusion on the positioning information under the coordinate system in the coordinate system, and using a double-fuzzy control self-adapting algorithm to regulate the Kalman filtering algorithm in real time to obtain the current agricultural machinery position information. The system comprises the global satellite positioning system, the inertia measurement unit, the electronic compass and the industrial personal computer. In the invention, the defectof low position accuracy of a single sensor and a combined method is overcome. And the invention is applicable to complex and inconstant field operation environment and has high positioning accuracy.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an agricultural machinery navigation and positioning method, system and agricultural machinery industrial computer. Background technique [0002] Navigation and positioning is a technology that combines satellite and communication. It mainly uses navigation satellites for testing and ranging. With the rapid development of communication technology, navigation and positioning technology is more and more widely used in engineering construction, surveying and mapping, precise timing, and In terms of tools and military weapons, it has the characteristics of all-weather, high precision, automation and high efficiency. [0003] A kind of navigation and positioning of the prior art adopts the Global Positioning System (Global Position Systems; hereinafter referred to as: GPS), and the GPS positioning technology adopts the principle of interactive positioning, and the position of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/02G01C21/16G01C17/32
Inventor 朱忠祥宋正河谢斌毛恩荣宋晓波王尚俊张漫刘刚
Owner CHINA AGRI UNIV
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