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Self-adaptive control system and self-adaptive control method for corn harvesting feeding amount

A self-adaptive control and feed rate technology, applied in applications, harvesters, cutters, etc., can solve the problem of not comprehensively considering the rate of grain breakage, the loss rate of ear picking, the entrainment loss rate, the maximum harvest efficiency and harvest quality, and the feed rate. It can solve problems such as quantitative subjectivity and uncertainty, and achieve the effect of ensuring reliability and scientificity, ensuring real-time performance and reliability, and reasonable and accurate vehicle speed control.

Pending Publication Date: 2020-09-18
CHINA AGRI UNIV
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Problems solved by technology

At present, the domestic control of corn harvesting feed is mainly based on the subjective experience of the driver, without comprehensive consideration of the impact of grain breakage rate, ear picking loss rate, and entrainment loss rate, etc., and there is a large subjective adjustment to the feed amount. sex and uncertainty
As a result, the corn harvester cannot achieve the maximum harvesting efficiency and harvesting quality during the harvesting process

Method used

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  • Self-adaptive control system and self-adaptive control method for corn harvesting feeding amount
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  • Self-adaptive control system and self-adaptive control method for corn harvesting feeding amount

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0043] The corn harvester includes a cab, a granary, an engine 9, a gearbox 18, a header 19 and a drum 21.

[0044] Such as figure 2 and image 3 As shown, an adaptive control system for feeding amount of corn harvesting includes a CAN bus, a measuring and transmitting device 10 , an armrest box assembly 16 , a display 8 , a main controller 11 and a hydraulic actuator 12 .

[0045] The hydraulic actuator 12 includes a working speed control electro-hydraulic proportional valve 13, a working speed control variable pump 14 and a working speed control hydraulic motor 15 connected in sequence; the working speed controlling hydraulic motor 15 is connected with the gearbox 18 of the corn harvester, Used to control the output speed of the gearbox 18. The operation speed control electro-hydraulic proportional valve 13 is connected with the pulse signal outpu...

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Abstract

The invention relates to a self-adaptive control system and a self-adaptive control method for corn harvesting feeding amount. The control system comprises a CAN bus, a measuring and transmitting device, an armrest box assembly, a displayer, a main controller and a hydraulic executing mechanism. The CAN bus integration technology is adopted, a corn harvesting quality parameter online detection andsensing information processing and fault diagnosis system are integrated on the basis of a CAN bus, and the real-time performance and reliability of information transmission of the control system areguaranteed. The optimal target feeding amount is obtained through real-time calculation according to multiple pieces of feedback information of the grain breakage rate, the entrainment loss rate andthe ear picking loss rate, the current feeding amount is calculated through the torque value, the feeding amount of the corn harvester in the harvesting process is adaptively adjusted by adjusting theoperation speed, and the purpose of improving the working efficiency and the harvesting quality is achieved. Multi-sensor fusion adjustment ensures the reliability and scientificity of adaptive adjustment of the feeding amount, so that the vehicle speed control in the harvesting process is more reasonable and accurate.

Description

technical field [0001] The invention belongs to the field of agricultural automation, and in particular relates to a CAN bus-based self-adaptive control system and control method for corn harvest feeding amount. Background technique [0002] Corn harvester is the main machine for corn harvesting, its working performance directly affects the working efficiency and harvesting quality. Developed countries have applied advanced intelligent control technology to corn harvesters, and are developing towards large-scale, automation, modernization and precision. Only a few universities and research institutes in China conduct research on the intelligent control of corn harvesters. There are many factors that affect the harvesting efficiency of corn, among which the feeding amount has the most direct impact on the harvesting efficiency. If the feeding amount is too low, the harvesting efficiency will be low; if the feeding amount is too large, it will lead to large ear picking loss a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01D45/02A01D41/127
CPCA01D45/028A01D41/1278
Inventor 迟瑞娟朱晓龙杜岳峰张真张维通熊泽鑫
Owner CHINA AGRI UNIV
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