A method, device and system for automatic measurement and calculation of mechanical farming area

Abstract

The invention provides an automatic measurement and calculation method, an automatic measurement and calculation device and an automatic measurement and calculation system for a tractor-ploughed area. The method comprises the steps of mounting a GNSS receiver antenna on the central position of a ploughing implement, and recording passed track coordinates along with movement of a ploughing machine; initializing a two-dimensional array M according to an extreme value of the track coordinates, using a connecting line between two adjacent coordinates as a middle line according to the time sequence of the recorded track coordinates, generating a rectangle by means of a known tractor ploughing working width, performing translation on the rectangle, performing conversion and inputting a plurality of sets of M, and adding one on each element value; and performing successive processing until all coordinates in the track is processed, and obtaining an effective ploughing area and an intersected repeated ploughing area through performing statistics on the plurality of sets of M elements. Through using a novel filling type area measurement and calculation plan, the automatic measurement and calculation method, the automatic measurement and calculation device and the automatic measurement and calculation system for a tractor-ploughed area have advantages of eliminating a defect of incapability of processing a crossed repeated ploughing error in a traditional method, improving area measurement and calculation precision in a track mode, visually displaying particular positions of plough omission and crossed repeated ploughing, and improving tractor ploughing quality.

Description

technical field [0001] The invention belongs to the technical field of agricultural automation measurement, and in particular relates to a method, device and system for automatic measurement and calculation of machine-cultivated area. Background technique [0002] Agricultural automation and precision agriculture are the direction of agricultural development. In the process of this development, a large number of new technologies need to be applied, including GNSS (Global Navigation Satellite System) technology, measurement technology and so on. However, most of the agricultural automation and precision agriculture require the measurement of the area cultivated by machines. According to the actual situation, there are generally two ways to measure and calculate the area of ​​mechanical tillage, which are the contour surrounding method and the trajectory method. [0003] The contour surround method is to go around the plot to be measured to get the area of ​​the plot. The t...

AI Technical Summary

Problems solved by technology

The algorithm of the contour encircling method is relatively mature, and its measurement accuracy is mainly related to the GNSS positioning accuracy, while the current measurement accuracy of the trajectory method is generally low. The phenomenon of missing tillage and cross-repetition tillage occurs, and the current track-based area measurement method is difficult to eliminate the cross-repetition area, which also affects the final measurement accuracy

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