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

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 the positioning 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 defect of 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.