Irrigation Tower Alignment Unit for Dynamic Pipeline Stress Relief

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Solution Overview

Problem

Irrigation systems with elevated pipelines face challenges in maintaining alignment, particularly when encountering uneven terrain or obstacles, which can lead to stress on the pipeline, increasing the likelihood of kinking or bursting.

Innovation Solution

An irrigation control system with an alignment unit comprising a housing, alignment sensor, alignment controller, and actuator that automatically reconfigures the pipeline alignment in real-time, using a cam and control switch or variable control unit to adjust the drive unit's operation based on sensor data, allowing for dynamic irrigation patterns and stress relief.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the pipeline is maintained in fixed alignment, then the structure is simple and stable, but the pipeline cannot accommodate uneven terrain or obstacles, leading to stress and potential failure

Engineering Contradiction:
Improvepipeline reliabilityVSAvoidalignment control complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic alignment adjustment by equipping each drive tower with an alignment unit that includes a sensor, controller, and actuator. The system continuously monitors pipeline alignment and automatically adjusts tower positions in real-time to accommodate terrain variations and obstacles, transforming the fixed alignment structure into a dynamic adaptive system that maintains pipeline integrity while navigating complex environments

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The alignment unit incorporates sensors that detect pipeline alignment status and feed this information back to the controller. Based on this feedback, the controller activates actuators to correct misalignment, creating a closed-loop control system that automatically maintains optimal pipeline alignment without manual intervention, thereby improving reliability while managing complexity through automation

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If automatic alignment adjustment is implemented, then the pipeline can adapt to terrain changes and avoid stress, but the system complexity increases

Engineering Contradiction:
Improvealignment adaptabilityVSAvoidalignment unit complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The alignment control system is segmented into independent alignment units distributed at each drive tower. Each unit contains its own sensor, controller, and actuator, allowing localized alignment adjustments without requiring a centralized complex control system. This modular segmentation reduces overall system complexity while maintaining high adaptability to terrain changes at each position

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each alignment unit operates autonomously to monitor and adjust its local pipeline alignment. The sensors detect misalignment conditions, the controllers process this information, and the actuators execute corrections without requiring external intervention. This self-service capability enables the system to adapt to terrain variations independently at each tower, improving versatility while minimizing the complexity of centralized control

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9538712B2Tower alignment system and mechanism that allows programmed changes to the alignment automatically
Publication Date: 2017.01.10 LINDSAY CORP
  • US9538712B2 patent drawing
  • US9538712B2 patent drawing
  • US9538712B2 patent drawing

AI summary

An alignment unit for use with an irrigation system comprises a housing, an alignment sensor, an alignment controller, and an actuator. The irrigation system may include a plurality of spans, each including a drive tower and a drive unit. The housing may house at least a portion of the alignment unit. The alignment sensor may measure a real-time alignment of the drive tower. The alignment controller may be in communication with the alignment sensor and may be operable to receive the real-time alignment of the drive tower and energize the drive unit based on a first range of real-time alignment values. The actuator may couple with the alignment controller and may reorient at least a portion of the alignment controller in relation to the alignment sensor.