Irrigation Tower Alignment Control via Angle Feedback
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Solution Overview
Problem
In irrigation systems, the staggered operation of spans results in towers often being out of alignment due to insufficient alignment control, leading to inefficiencies in crop irrigation.
Innovation Solution
An alignment control system comprising tower angle measurement devices and a control processing element that measure and compare angle values to a threshold, generating control signals to adjust drive motors and maintain proper tower alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If towers are driven independently with basic alignment control, then operational flexibility is improved, but alignment accuracy deteriorates
Solution Approach 1:
The system continuously measures the actual alignment between towers using angle measurement devices and compares it to the desired alignment, then automatically adjusts tower positions based on the deviation feedback to maintain accurate alignment during independent operation
Solution Approach 2:
The alignment control system dynamically adjusts the operation of individual towers based on real-time alignment conditions, allowing towers to be driven independently when alignment permits while automatically correcting positions when misalignment occurs, providing both flexibility and precision
2Manufacturing precision
If tower alignment is continuously monitored and adjusted, then alignment accuracy is improved, but system complexity increases
Solution Approach 1:
The alignment control system is self-regulating, automatically detecting misalignment conditions and activating drive motors to correct tower positions without requiring external intervention or complex manual adjustment mechanisms
Solution Approach 2:
The system replaces complex mechanical alignment adjustment mechanisms with an automated control system that uses angle sensors and electronic control to achieve precise alignment, reducing mechanical complexity while improving accuracy
3Productivity
If towers operate in staggered sequence, then productivity is improved, but alignment stability deteriorates
Solution Approach 1:
The system monitors alignment between towers in real-time and provides continuous feedback to the control processor, which automatically activates drive motors to correct any misalignment caused by staggered operation, maintaining stability during high-productivity operation
Solution Approach 2:
The system proactively detects alignment deviations before they become significant problems and pre-adjusts tower positions to prevent misalignment from affecting operational stability, allowing staggered sequence operation to proceed efficiently
Data Source
AI summary
An alignment control system for controlling an alignment of a plurality of mobile towers, each mobile tower supporting a section of conduit in an irrigation system comprises a plurality of tower angle measurement devices and a control processing element. Each tower angle measurement device is associated with a successive one of the mobile towers and is configured to measure an angle value which varies according to a rotation angle of the associated mobile tower relative to one or more of the other mobile towers. The control processing element is configured or programmed to receive the angle value from each tower angle measurement device, compare the angle value to a threshold angle value, and generate and transmit control signals, data, or both that include an activation hysteresis value to a drive motor associated with each mobile tower that has an angle value greater than the threshold angle value.