CN-122004035-A - Harvester grain unloading self-adaptive control method

CN122004035ACN 122004035 ACN122004035 ACN 122004035ACN-122004035-A

Abstract

The invention discloses a grain unloading self-adaptive control method of a harvester, which relates to the technical field of agricultural machinery control, and comprises the steps of acquiring grain state information in a grain bin of the harvester in real time, wherein the grain state information comprises grain moisture information, grain yield information and grain storage information; and executing the grain unloading operation according to the starting time, and adjusting the grain unloading speed according to the grain state information in the grain unloading process. The invention realizes the self-adaptive control of the grain unloading process on the operation state, solves the problems of full granary overflow, grain unloading blockage, grain quality reduction and excessively high grain unloading energy consumption caused by a fixed control mode, and remarkably improves the efficiency, reliability and economy of grain unloading operation.

Inventors

Sha Guohui
LIU WENMING
WU TAO
LIU JIANYE

Assignees

潍柴雷沃智慧农业科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260327

Claims (10)

1. The self-adaptive grain unloading control method for the harvester is characterized by comprising the following steps of: s1, acquiring grain state information in a grain bin of a harvester in real time, wherein the grain state information comprises grain moisture information, grain yield information and grain storage information; s2, determining the starting time of grain unloading operation according to the grain state information; S3, performing grain unloading operation according to the starting time, and adjusting grain unloading speed according to the grain state information in the grain unloading process.
2. The method of claim 1, wherein determining the start timing of the unloading operation comprises: Comparing the grain storage information with a preset storage threshold, comparing the grain moisture information with a preset moisture threshold, and comparing the grain yield information with a preset yield threshold; And determining the starting time as immediate starting, early starting or delayed starting based on the comparison result.
3. The method of claim 1, wherein said adjusting the unloading speed according to said grain status information comprises: And adjusting the opening of the grain unloading throttle according to the grain moisture information so as to control the grain unloading speed, wherein the grain moisture information is in negative correlation with the opening of the grain unloading throttle and the grain unloading speed.
4. The method for adaptively controlling grain unloading of a harvester according to claim 1, wherein said S3 further comprises: Continuously acquiring the grain yield information and the grain storage information, and determining unloaded grain food consumption according to the grain yield information; and stopping the grain unloading operation when the grain storage information is not higher than the preset grain low level or the unloaded grain food amount reaches the preset grain target.
5. The method for adaptively controlling grain unloading of a harvester of claim 1, further comprising: Receiving a direct grain unloading instruction through a human-computer interaction interface; And responding to the direct grain unloading instruction, skipping the step S2, and directly executing the grain unloading operation of the step S3.
6. The method for adaptively controlling grain unloading of a harvester according to claim 1, further comprising continuously monitoring the grain status information and the operational status of the harvester during grain unloading, and triggering an alarm and recording abnormal information if the grain status information is abnormal or the operational status of the harvester is abnormal, and simultaneously suspending grain unloading operation or stopping grain unloading operation.
7. The grain unloading self-adaptive control system of the harvester is characterized by comprising a data acquisition module, a timing decision module and a grain unloading execution module; The data acquisition module is used for acquiring grain state information in a grain bin of the harvester in real time, wherein the grain state information comprises grain moisture information, grain yield information and grain storage information; the opportunity decision module is used for determining the starting opportunity of the grain unloading operation according to the grain state information; the grain unloading execution module is used for executing grain unloading operation according to the starting time and adjusting grain unloading speed according to the grain state information in the grain unloading process.
8. The adaptive control system for unloading a harvester of claim 7, wherein said determining a start timing of an unloading operation comprises: Comparing the grain storage information with a preset storage threshold, comparing the grain moisture information with a preset moisture threshold, and comparing the grain yield information with a preset yield threshold; And determining the starting time as immediate starting, early starting or delayed starting based on the comparison result.
9. A computer device, characterized in that it comprises a processor coupled to a memory, in which at least one computer program is stored, which is loaded and executed by the processor, so that the computer device implements a harvester-unloading adaptive control method according to any of claims 1-6.
10. A computer-readable storage medium, wherein at least one computer program is stored in the computer-readable storage medium, the at least one computer program being loaded and executed by a processor to cause the computer to implement a harvester unloading adaptive control method according to any one of claims 1 to 6.

Description

Harvester grain unloading self-adaptive control method Technical Field The invention relates to the technical field of agricultural machinery control, in particular to a grain unloading self-adaptive control method of a harvester. Background In the field of modern agricultural machinery, a harvester is an important grain harvesting device, and the main functions of the harvester include cutting, threshing, separating, unloading grains and the like. The grain unloading system is used as an important component of the harvester and is responsible for unloading grains collected after threshing from the granary to a transport vehicle or storage device. Conventional harvester grain unloading systems usually operate in a fixed mode, and their control logic is based on preset parameters and cannot be dynamically adjusted according to the actual working environment and system state. For example, the grain unloading speed is usually set manually by an operator or is automatically operated based on a fixed operation mode, but the modes cannot respond to the change of field operation conditions in real time, and the grain unloading speed is fixed, cannot be dynamically adjusted according to fluctuation of grain yield, is easy to cause full grain bin overflow or idle grain unloading conveyor belt, is single in grain unloading time, cannot consider the change of quality parameters such as grain humidity and temperature, and is likely to cause caking or deterioration of grains due to humidity or high temperature in the grain unloading process, and the system is high in energy consumption, and a grain unloading system operated in a fixed mode cannot optimize energy distribution, so that unnecessary energy consumption is caused, and operation cost is increased. Therefore, how to design a self-adaptive control method capable of dynamically adjusting the grain unloading speed and the time according to the actual operation conditions becomes a technical problem to be solved in the field of modern agricultural machinery. Currently, some improved technical solutions for a grain unloading system of a harvester exist in the market, but the solutions still have certain limitations. For example, a typical prior art solution is to increase the discharge speed by increasing the drive power of the discharge conveyor, but this solution only solves the problem of insufficient discharge speed, fails to achieve dynamic adjustment, and increases the energy consumption significantly. Another improved solution is based on simple logic control, for example, relying on a grain full sensor only to trigger the unloading operation, but this solution does not take into account the influence of multiple parameters such as grain yield, humidity, temperature, etc. In summary, the existing harvester grain unloading system has the following defects. The lack of a real-time monitoring and feedback mechanism for the operation environment and the grain state depends on fixed parameters or single signals in the control process, and the self-adaptive adjustment cannot be performed according to the actual operation conditions, so that the grain unloading efficiency is low, the grain quality is difficult to ensure, the system energy consumption is high, and frequent intervention of operators is required. Disclosure of Invention The invention aims to solve the technical problems of low grain unloading efficiency, high grain quality risk, high grain unloading energy consumption and the like caused by fixed control mode and lack of real-time sensing and self-adaptive adjustment capability in the grain unloading process of the existing harvester, and particularly provides a grain unloading self-adaptive control method of the harvester, which comprises the following steps of: 1) In a first aspect, the invention provides a harvester grain unloading self-adaptive control method, which comprises the following specific technical scheme: s1, acquiring grain state information in a grain bin of a harvester in real time, wherein the grain state information comprises grain moisture information, grain yield information and grain storage information; s2, determining the starting time of grain unloading operation according to the grain state information; S3, performing grain unloading operation according to the starting time, and adjusting grain unloading speed according to the grain state information in the grain unloading process. The grain unloading self-adaptive control method of the harvester has the beneficial effects that: Based on the grain moisture information, grain yield information and grain storage information acquired in real time, the starting time of grain unloading operation is dynamically determined, the grain unloading speed is correspondingly adjusted, the self-adaptive control of the grain unloading process on the operation state is realized, the problems of full granary overflow, grain unloading blockage, grain quality reduction and excessive grain unload