Lifting Hitch Feedback Control for Consistent Seed Depth
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Solution Overview
Problem
Current agricultural planting methods lack precision in seed placement due to variations in soil type, moisture, and terrain, leading to uneven crop growth as seed depth is influenced by soil conditions and implement operation.
Innovation Solution
A system comprising a tractor with a control system, sensors, and adjustable implement components, including a lifting hitch and parallel linkages, allows for precise control of row unit position and depth relative to the ground, enabling accurate seed placement across varying field terrains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional planting methods are used without real-time adjustment, then the system is simple and easy to operate, but seed placement depth varies due to soil conditions and terrain
Solution Approach 1:
The patent implements dynamic adjustment of the implement frame position relative to the tractor using a lifting hitch system. Sensors continuously monitor row unit position and terrain conditions, and the control system automatically adjusts the lifting hitch to maintain consistent seed placement depth despite variations in soil type, moisture level, and terrain elevation. This dynamic adaptation resolves the contradiction by making the system complex enough to achieve precision while maintaining ease of operation through automation.
Solution Approach 2:
The patent employs a feedback control system where sensors detect actual row unit position and terrain conditions, and this information is fed back to the control system which adjusts the lifting hitch accordingly. This closed-loop feedback mechanism ensures consistent seed placement depth by continuously correcting for terrain variations and soil conditions, resolving the contradiction between precision and simplicity through intelligent automation.
2Manufacturing precision
If fixed implement position is used, then the device is simpler to manufacture, but seed placement precision deteriorates across varying terrains
Solution Approach 1:
The patent replaces fixed implement positioning with a dynamic lifting hitch system that can adjust the implement frame position relative to the tractor. This dynamic system uses sensors and control algorithms to maintain precise seed placement across varying terrains, resolving the contradiction by accepting increased manufacturing complexity in exchange for significantly improved placement precision.
Solution Approach 2:
The patent changes the operational parameters of the implement by introducing adjustable vertical position and orientation through the lifting hitch system. Rather than manufacturing different implements for different terrains, the system dynamically changes position parameters to adapt to various soil types, moisture levels, and terrain conditions, achieving precision while managing manufacturing complexity through a standardized adjustable platform.
3Manufacturing precision
If real-time adjustability is added to the implement, then seed placement consistency improves, but the ease of operation decreases due to complex control systems
Solution Approach 1:
The patent implements automatic feedback control where sensors continuously monitor row unit position and terrain conditions, and the control system automatically adjusts the lifting hitch without operator intervention. This automation resolves the contradiction by removing the burden of complex manual control while maintaining precise seed placement consistency through intelligent algorithms that process sensor data and make real-time adjustments.
Solution Approach 2:
The system performs self-adjustment through automated control algorithms that process sensor information and actuate the lifting hitch accordingly. The implement essentially serves itself by automatically compensating for terrain variations and maintaining optimal seed placement depth without requiring operator knowledge or manual adjustment, resolving the contradiction between precision and ease of operation.
Data Source
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AI summary
A system (100) includes a tractor (102) comprising a lifting hitch (114), and an implement (120) comprising an implement frame (122) carried by the lifting hitch. The implement frame has an integrated elongate toolbar (124) carrying at least one row unit (126). A sensor (142, 144) is configured to sense a position of the at least one row unit relative to the ground. A control system (110) is configured to receive a signal related to the sensed position of the at least one row unit (126) relative to the ground and cause the lifting hitch (114) to raise or lower a portion of the implement frame connected to the lifting hitch relative to the tractor based at least in part on the signal. Control systems and related methods are also disclosed.