Baler Pickup Feedback Control for Automatic Tractor Speed Adjustment
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Solution Overview
Problem
Existing baler systems rely on manual adjustments by tractor operators to avoid baler plugging, which can lead to inefficiencies and potential plugging events due to the operator's distraction or inability to react in time.
Innovation Solution
A system comprising a load sensor, windrow sensor, processing element, and tractor speed controller that automatically adjusts the tractor speed based on the load on the baler pickup, cross-sectional area of the windrow, and crop moisture level to prevent baler plugging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual speed adjustment by operator is used, then system complexity is reduced, but baler reliability deteriorates due to operator distraction and delayed reaction
Solution Approach 1:
The baler system performs self-monitoring and self-adjustment of tractor speed through automated sensors and control systems. The load sensor detects pickup load conditions, the processor determines appropriate speed adjustments, and the speed controller automatically adjusts tractor speed without operator intervention, enabling the system to service itself
Solution Approach 2:
The system implements continuous feedback loops where load sensors monitor pickup conditions, processors analyze the feedback signals, and speed controllers adjust tractor speed based on the analyzed data. This closed-loop feedback mechanism ensures reliable plugging prevention by constantly monitoring and responding to baler operating conditions
2Reliability
If automated speed adjustment system is implemented, then baler reliability improves through continuous monitoring, but device complexity increases due to multiple sensors and controllers
Solution Approach 1:
The processor serves multiple functions: it receives signals from load sensors, determines windrow presence using windrow sensors, calculates appropriate speed adjustments, and sends control signals to the speed controller. This multi-functionality reduces the need for separate dedicated components for each function
Solution Approach 2:
The system combines multiple sensing functions (load monitoring, windrow detection) and control functions (speed adjustment, plugging prevention) into an integrated automated control system. The processor merges data from multiple sensors to make comprehensive speed adjustment decisions, consolidating what could be separate systems into a unified control architecture
3Productivity
If operator manually monitors pickup load, then ease of operation is maintained, but productivity decreases due to operator distraction and delayed reaction time
Solution Approach 1:
The patent replaces the mechanical/manual monitoring and control system with an automated electronic system. Load sensors, processors, and speed controllers substitute for the operator's manual monitoring and speed adjustment actions, enabling continuous automated control that improves productivity while maintaining operational simplicity through automatic operation
Data Source
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AI summary
A system for adjusting a tractor speed based on a performance of a pickup of a baler comprises a flow rate sensor, a processing element, and a tractor speed controller. The flow rate sensor senses a flow rate of a crop into the pickup and outputs a flow rate signal with a level that varies according to the flow rate of the crop into the pickup. The processing element receives the flow rate signal, receives a speed signal regarding a speed of a tractor pulling the baler, compares the flow rate from the flow rate signal with the speed from the speed signal to generate a comparison result, and outputs an electronic speed signal with a level that varies according to the comparison result. The tractor speed controller is configured to receive the speed signal and adjust a speed of the tractor according to the level of the speed signal.