Ratooning Rice Stubble Righting Control System
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Solution Overview
Problem
Current ratooning rice harvesting technologies face challenges in achieving efficient stubble righting during the first season, leading to reduced yield in the second season due to inconsistent stubble height and high manual workload.
Innovation Solution
A self-adaptive control system and method for stubble height and righting operation in ratooning rice combine harvesters, which includes a stubble righting device, profile contact sensor, speed radar, and controller. This system adjusts the height of the stubble and the stubble righting device, as well as the rotation speed of the stubble righting device, to ensure consistent stubble height and reduce manual labor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual assistance is used for stubble righting, then the stubble can be righted, but the workload is large and operational efficiency is low
Solution Approach 1:
The system uses sensors to detect stubble height and automatically adjusts the righting device parameters without manual intervention, making the system serve itself and eliminating the need for manual assistance while maintaining high operational efficiency
Solution Approach 2:
The patent replaces manual mechanical operations with an automated control system that uses sensors to detect stubble height and automatically adjusts the righting device, substituting human labor with an intelligent control mechanism
2Ease of operation
If traditional righting method is used, then stubble can be righted, but inconsistent stubble height affects second season yield
Solution Approach 1:
The system employs sensors to continuously detect stubble height and feeds this information back to the controller, which automatically adjusts the righting device parameters to maintain consistent stubble height, ensuring high precision in stubble management
Solution Approach 2:
The patent replaces manual mechanical operations with an automated control system that uses sensors to detect stubble height and automatically adjusts the righting device, substituting human labor with an intelligent control mechanism
3Ease of operation
If device height and speed are not adjusted adaptively, then the system is simple to operate, but it cannot meet varying operation requirements
Solution Approach 1:
The system dynamically adjusts the device height and rotation speed based on real-time operational conditions detected by sensors, making the parameters variable rather than fixed, thereby adapting to different operation requirements automatically
Solution Approach 2:
The controller automatically changes key parameters including device height and rotation speed based on sensor feedback and operational requirements, enabling the system to adapt to varying conditions without manual intervention
Data Source
AI summary
A self-adaptive control system for height and operation of ratooning rice stubble cutting includes a stubble righting device, a profiling contact sensor, a speed radar, and a controller; the stubble righting device is installed at the rear of the harvester, and is connected to the bracket by the stubble righting device hydraulic cylinder; the profiling contact sensor is configured to detect the height of the header above the ground and transmit data to the controller; the speed radar is configured to obtain and transmit speed information of the harvester to the controller; the hydraulic valve block is installed on the chassis frame and connected to the header lifting hydraulic cylinder and the stubble righting device hydraulic cylinder respectively; input terminals of the controller are connected to the profiling contact sensor and the speed radar, and output terminals of the controller are connected to the motor and hydraulic valve block.