Yarn Spindle Transit Control Through PLC-MES Mediation

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Solution Overview

Problem

The efficient and smooth transit of yarn spindles in chemical fiber production lines is a bottleneck that affects overall production efficiency and rhythm, necessitating improved management and control systems.

Innovation Solution

A system utilizing a Manufacturing Execution System (MES), a first Programmable Logic Controller (PLC), and multiple second PLCs, with the first PLC acting as an intermediate layer to manage data communication and control yarn spindle transit, enabling real-time monitoring and automated decision-making to optimize production flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual control methods are used for yarn spindle transit, then operational flexibility is maintained, but transit efficiency and production rhythm are reduced

Engineering Contradiction:
Improvetransit efficiencyVSAvoidautomation level
Core Design Contradiction:
ProductivityVSExtent of automation

Solution Approach 1:

The system enables automatic transit control where the PLC independently manages yarn spindle transit operations based on workstation status data, eliminating the need for continuous manual intervention and significantly improving transit efficiency while maintaining operational autonomy

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical control with an automated PLC-based control system that uses electronic data processing and automated decision-making to manage yarn spindle transit, thereby enhancing productivity through systematic automation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If complex control systems are implemented to manage yarn spindle transit, then transit precision is improved, but system complexity and implementation difficulty increase

Engineering Contradiction:
Improvetransit control precisionVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The PLC serves as an intermediary control device that simplifies the control architecture by centralizing transit management functions, reducing the complexity of direct point-to-point control while maintaining precise transit control through standardized data processing protocols

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The control system is segmented into modular components where the PLC handles transit control logic, workstation systems provide status data, and the MES oversees overall production coordination, allowing each module to be optimized independently while maintaining precise integrated control

Inventive Principle:
Principle #1Segmentation

3Productivity

If real-time monitoring and automated decision-making are implemented, then production flow optimization is achieved, but network structure complexity and data processing requirements increase

Engineering Contradiction:
Improveproduction flow efficiencyVSAvoidnetwork structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system merges transit control functions, workstation monitoring, and data processing into an integrated PLC-based platform that communicates through standardized protocols, reducing network complexity by consolidating multiple functions into a unified control architecture while maintaining real-time production flow optimization

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4718190A1Method and apparatus for controlling automatic transit of yarn spindle and storage medium
Publication Date: 2026.04.01 ZHEJIANG HENGYI PETROCHEMICAL CO LTD
  • EP4718190A1 patent drawingFigure 1
  • EP4718190A1 patent drawingFigure 2
  • EP4718190A1 patent drawingFigure 3

AI summary

Provided are a method and apparatus for controlling automatic transit of a yarn spindle, an electronic device and a storage medium, relating to the field of chemical fiber intelligent technology. The method includes that: a first PLC acquires second service data of a target workstation from a second PLC corresponding to the target workstation, obtains first service data of the target workstation based on the second service data, the second service data includes a compulsory transit variable being equal to 1 (S201); the first PLC sends the first service data to an MES, receives transit indication information which is determined based on the compulsory transit variable by the MES (S202); and the first PLC analyzes the transit indication information to obtain an analysis result, returns the analysis result to the second PLC to perform a yarn spindle transit task based on the analysis result by the second PLC (S203).