农机直线行走作业DGPS导航算法研究

Arithmetic Study of DGPS Guidance on Agriculture Machinery Straight Line Operation

对于大中型宽幅农业机组在大面积的田间行走作业中利用DGPS进行导航具有很多优点。本文对农机直线行走作业DGPS导航涉及的投影转换、导航AB线、行驶方向角、机组在导航AB线的左右位置、机组当前导航线与导航AB线之间的距离、偏航距离及左右确定等问题进行了分析并给出了算法。通过编程测试表明,本文涉及的算法可行,可用于农机直线行走作业DGPS导航中。

Virtues could be observed by using DGPS guidance in operations of large or middle scale agriculture machines with wide swath in big area field. For farm machine straight line operating with the DGPS navigation, problems of the projection transform, the guidance AB line, the travel course angle, the position of the unit and the guidance AB line, the distance between the current guidance line and the guidance AB line, the distance of off-course and unit position were analyzed and the arithmetic was given in this paper. Through the programming test, results indicated the arithmetic was practical and could be used in the DGPS guidance for agriculture machinery straight line operation.