I. Introduction
Agricultural machinery large-scale farming requires accurate, timely and efficient agricultural machinery tillage area measurement data from geographical information platform, and the uploading of operational information of agricultural machinery equipment has changed the traditional measurement method. Agricultural machinery operation information refers to the original information uploaded by the navigation and positioning equipment on agricultural machinery to the platform database, including longitude, latitude, upload time and tillage depth information, which can be converted into trajectory information that can be calculated at a higher level after spatial data processing.