Yarn Spindle Station-Passing Control With Hierarchical MES Routing
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Solution Overview
Problem
Existing production lines for yarn spindle products face inefficiencies in transferring and deciding whether to proceed to the next station, affecting overall production line efficiency.
Innovation Solution
A method and apparatus for controlling station-passing of yarn spindle products using a first controller, MES, and multiple second controllers, where operational data is received and processed to generate station-passing instructions, ensuring efficient and accurate transfer decisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If operational data is directly processed by the MES for station-passing decisions, then centralized control is achieved, but data processing burden and communication latency increase
Solution Approach 1:
The control system is segmented into multiple levels: first controllers at individual stations handle local data processing and preliminary decision-making, while the MES handles overall coordination. This segmentation reduces the processing burden on the MES and enables faster local responses, directly improving production line efficiency without overwhelming the central system.
Solution Approach 2:
First controllers act as intermediary devices between second controllers (station equipment) and the MES. They receive operational data from second controllers, perform initial processing and analysis, then forward only essential information to the MES. This intermediary layer reduces communication latency and data processing burden on the MES while maintaining centralized oversight.
2Reliability
If a centralized MES processes all station-passing decisions, then system stability is improved, but communication latency and processing time increase
Solution Approach 1:
First controllers perform preliminary processing of operational data before submitting to the MES, pre-preparing information in the required format and performing initial validation. This preliminary action reduces the time the MES needs to spend on basic processing tasks, thereby reducing overall communication latency and processing time while the MES maintains system stability through final authorization.
3Productivity
If multiple controllers communicate directly with MES, then centralized monitoring is achieved, but system scalability and stability are reduced
Solution Approach 1:
The controller hierarchy is segmented into first controllers (station-level) and second controllers (equipment-level). Second controllers communicate with first controllers, which aggregate data and communicate with the MES. This segmentation allows new stations to be added by simply adding new first controller-MES pairs, enabling easy scalability while maintaining centralized monitoring through the MES.
4Manufacturing precision
If operational data is transmitted to MES for every station-passing decision, then accurate control is achieved, but communication overhead and processing time increase
Solution Approach 1:
First controllers perform partial processing of operational data locally, analyzing only the critical parameters needed for immediate station-passing decisions. They transmit only essential data to the MES rather than complete operational datasets. This partial action approach maintains accurate control decisions while significantly reducing communication overhead and data processing time.
Data Source
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AI summary
A method for controlling station-passing of yarn spindle is provided, relating to the field of computers and automatic control. The method includes: receiving (S201) the target operational data sent from a target controller by using a second controller as the target controller; sending (S202) the target operational data to the MES responsive to determining that a communication link between the first controller and the MES is in a normal state, where the MES is configured to obtain a target station-passing instruction based on the target operational data and send the target station-passing instruction to the first controller; receiving (S203) the target station-passing instruction sent from the MES; and sending (S204) the target station-passing instruction to the target controller, where the target controller is configured to perform the station-passing control operation for the yarn spindle product passing through a target station corresponding to the target controller.