Spun Yarn Winding Path Imaging for Yarn-Cut Analysis
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Solution Overview
Problem
Existing spun yarn winding systems experience efficiency deterioration due to yarn cutting, which is difficult to analyze without adequate information acquisition means.
Innovation Solution
Incorporation of imaging devices to capture yarn path videos, a storage unit for data, and a controller to sample video data based on predetermined signals for analyzing yarn cutting indications and reasons, including a cutting suction device for controlled yarn management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If imaging devices and video storage are added to capture yarn path information, then the ability to analyze yarn cutting reasons is improved, but the device complexity increases
Solution Approach 1:
The system continuously records video data of the yarn path before yarn cutting occurs. When yarn cutting is detected by the yarn information acquisition unit, the controller retrieves and outputs the previously recorded video data for analysis. This preliminary recording approach ensures that information is available when needed without requiring complex real-time capture and storage infrastructure.
Solution Approach 2:
The patent introduces a controller as an intermediary component that manages the complex interaction between imaging devices, storage units, yarn information acquisition units, and output mechanisms. The controller coordinates data flow and timing, simplifying the overall system architecture by centralizing control logic rather than requiring direct integration of all components.
2Measurement precision
If video data from multiple positions is stored for later analysis, then the completeness of yarn cutting analysis is improved, but the data storage requirements and processing time increase
Solution Approach 1:
Video data from multiple imaging devices positioned along the yarn path is continuously recorded and stored in advance. When yarn cutting occurs, the controller immediately outputs the relevant video segments for analysis. This approach provides complete visual information for precise analysis while avoiding the need for complex real-time data processing during the cutting event itself.
Solution Approach 2:
The system extracts and outputs only the specific video data segments relevant to yarn cutting analysis from the continuously recorded data. By selectively retrieving and outputting only the necessary portions of video data when yarn cutting is detected, the system provides comprehensive analysis information without requiring processing of entire video datasets, thus reducing processing time.
3Reliability
If the system continuously monitors yarn state with multiple sensors and imaging devices, then the reliability of yarn cutting detection is improved, but the energy consumption and system complexity increase
Solution Approach 1:
The system uses a yarn information acquisition unit that periodically or event-triggered monitors yarn state parameters such as tension, position, and other physical quantities. Rather than continuous high-power monitoring, the system activates monitoring and data acquisition based on detected changes or at regular intervals, reducing energy consumption while maintaining reliable yarn cutting detection through the coordinated operation of multiple sensors and imaging devices.
Data Source
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AI summary
A spun yarn winding system which is capable of obtaining information used for analyzing a reason of yarn cutting is provided. A spun yarn winding system 1 includes a spun yarn take-up winder 3 configured to take up a yarn Y spun out from a spinning apparatus 2 and wind the yarn Y onto a bobbin B. The spun yarn winding system 1 further includes, at different positions on a yarn path from the spinning apparatus 2 to the spun yarn take-up winder 3, cameras 31 to 35 capable of taking videos of the yarn Y, a video data storage unit 19 configured to store the video data of the video taken by the cameras 31 to 35, a yarn information acquisition unit 17 capable of acquiring information regarding the state of the yarn Y on the yarn path, and a winding controller 18. Upon receiving a predetermined signal regarding the information of the state of the yarn Y from the yarn information acquisition unit 17, the winding controller 18 executes a data sampling process of sampling video data corresponding to the video taken during a predetermined range R that is set on the basis of a time at which the predetermined signal was received, from a video data stored in the normal storage area 19a of a video data storage unit 19.