Multi-parameter control system for threshing performance of combined harvester

Abstract

The invention discloses a multi-parameter control system for threshing performance of a combined harvester, comprising a data collecting unit, a control executing unit and a displaying unit, wherein the data collecting unit is used for collecting each operation parameter of the combined harvester and processing the parameters and then transmitting to the control executing unit; the control executing unit is used for calculating the received operation parameters to obtain the optimal solutions of the controlled parameters, and controlling the output of the controlled quantity according to the optimal solutions; and the display unit is used for displaying the operation parameters of the combined harvester in real time during the operation. The control system disclosed by the invention uses the multi-parameter real-time control strategys to regulate various operation parameters of the combined harvester according to the variation of the field operation state of the combined harvester, thereby further ensuring the harvesting quality and ensuring the working efficiency of the combined harvester.

Description

technical field [0001] The invention relates to the technical field of agricultural mechanized production, in particular to a multi-parameter control system for combine harvester threshing performance. Background technique [0002] The threshing system is an important part of the combine harvester, and the performance of other main systems of the combine harvester is closely related to it. Among them, the speed of the threshing drum is an important parameter that affects the threshing quality of the combine harvester. For various crops, the threshing drum has an optimal speed range corresponding to it. When it is lower than the lower limit of this threshold, the impurity content of crop grains is higher, and if the feed rate increases, it will also cause blockage of the conveyor or threshing drum; when it is higher than the upper threshold, it will increase the damage of the grains. Therefore, how to control the rotational speed of the threshing drum in the optimum range is...

AI Technical Summary

Problems solved by technology

The control system only works when the controlled quantity exceeds the set limit value. For a complex system with a large delay like the combine harvester, it is often difficult to grasp the change of the controlled parameter in time, resulting in being controlled. The control amount fluctuates in a large range, causing the system control index to oscillate, which eventually leads to the failure of the control system or the blocking of the threshing drum

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