Winch Rope Depth Sensor Array for Winding Non-Uniformity Detection
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Solution Overview
Problem
Winch rope management systems face issues with rope winding uniformity, leading to defects like 'bird's nests' and other undesirable states, which existing monitoring systems fail to detect promptly and effectively.
Innovation Solution
A system comprising rope depth sensors and a rotation sensor, coupled with a control unit, that monitors rope depth and rotation to detect non-uniformity and insufficient wrap, providing warnings through visual and auditory indicators, and communication outputs when deviations are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rope is allowed to wind onto the drum in a free-form fashion, then the winch operation is simple and flexible, but the rope winds onto the drum in a random or chaotic fashion creating bird's nests and other undesirable states
Solution Approach 1:
The system performs preliminary detection of rope depth at multiple locations before significant non-uniformity develops. By monitoring rope depth continuously and comparing measurements across multiple sensor locations, the system can detect early signs of chaotic winding and alert operators before bird's nests form, allowing preventive action to be taken while maintaining operational flexibility
Solution Approach 2:
The system implements feedback by continuously measuring rope depth at multiple locations along the drum axis, comparing these measurements to detect non-uniformity, and providing real-time alerts to operators. This closed-loop monitoring enables operators to adjust winding operations to maintain uniformity while preserving the simplicity of free-form winding operations
2Manufacturing precision
If steps are taken to alleviate miswinding and other problems once they become known, then rope winding quality can be improved, but the operator or control systems need to be made aware of winding non-uniformity or error before remedies can be deployed
Solution Approach 1:
The system performs preliminary detection by continuously monitoring rope depth at multiple locations before significant non-uniformity develops. The control unit compares depth measurements from multiple sensors and detects early signs of miswinding, alerting operators before bird's nests or other defects form, thereby enabling timely corrective action and minimizing downtime
Solution Approach 2:
The system rapidly detects and alerts winding non-uniformity by continuously comparing rope depth measurements from multiple sensors in real-time. This fast detection mechanism allows operators to immediately address issues before they escalate into serious defects, reducing the time loss associated with detecting and correcting winding problems
3Measurement precision
If multiple rope depth sensors are used to monitor rope depth at different locations, then rope non-uniformity can be detected, but the device complexity increases
Solution Approach 1:
The system segments the drum axis into multiple monitoring zones by placing depth sensors at different locations along the axis. Each sensor monitors a specific segment, and the control unit compares measurements across segments to detect non-uniformity. This segmentation approach provides comprehensive coverage and accurate detection while keeping each sensor simple and the overall system manageable
Solution Approach 2:
The depth sensors serve multiple functions: they measure rope depth at their specific location, provide reference measurements for comparison with other sensors, and collectively enable detection of non-uniformity across the entire drum. This multi-functionality justifies the use of multiple sensors while maximizing their utility and reducing redundant complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively identifies and alerts operators to rope non-uniformity and insufficient wrap, preventing defects and ensuring orderly winding, thus enhancing the reliability and safety of winch operations.
Implementation Method 1
The plurality of sensors (112, 114, 116, 118) are sonic sensors
Implementation Method 2
The rotation sensor may comprise a Hall-effect sensor. The Hall-effect sensor may comprise a dual channel Hall-effect sensor with a quadrature output
Data Source
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AI summary
A plurality of sensors measure rope depth at a plurality of locations along an axis of a winch drum for use by a control unit in determining rope defects.