Production Line Reconfiguration for Equipment Failure Bottlenecks
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Solution Overview
Problem
Existing production line configuration change systems fail to promptly reconfigure production lines when errors or design changes occur, leading to reduced production capacity and inefficiencies in equipment utilization.
Innovation Solution
A production line configuration change system that includes an error information storage unit, work information storage unit, equipment information storage unit, and a production line configuration calculation unit, which calculates a provisional configuration to maximize production quantity by reassigning work to available equipment and tools within the production line, ensuring equipment and tool constraints are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the production line configuration is changed to continue production when equipment fails, then productivity is maintained, but the complexity of managing equipment assignments and tool constraints increases
Solution Approach 1:
The system automatically detects equipment failures and performs reconfiguration without human intervention. The production line configuration calculation unit autonomously evaluates alternative equipment assignments, checks tool compatibility constraints, and implements the optimal configuration, enabling the system to self-correct and maintain productivity.
Solution Approach 2:
The system continuously monitors equipment status through error information storage units and uses this feedback to trigger reconfiguration. The configuration calculation unit receives real-time status updates, evaluates current versus alternative assignments, and adjusts the production line configuration based on this feedback loop to maintain optimal productivity.
2Productivity
If the production line is reconfigured to maximize production quantity during errors, then productivity increases, but the time required for configuration changes increases
Solution Approach 1:
The system pre-calculates and stores multiple alternative production line configurations in advance, evaluating different equipment assignments and tool compatibility scenarios before failures occur. When an error happens, the system immediately selects from these pre-evaluated alternatives rather than calculating from scratch, significantly reducing configuration change time while maintaining optimal production quantity.
3Device complexity
If existing equipment and tools are utilized for reconfiguration, then device complexity is minimized, but the ability to meet production deadlines may be compromised
Solution Approach 1:
The system dynamically evaluates the productivity implications of different equipment assignment configurations. The production line configuration calculation unit calculates expected production quantities for each alternative configuration, comparing them against deadline requirements. This dynamic assessment ensures that the selected configuration maximizes production output using existing equipment while still meeting delivery deadlines, adapting the assignment strategy based on real-time constraints.
Data Source
AI summary
The production line configuration change system includes: an error information storage unit that stores information of an error which occurs in equipment on a production line; a work information storage unit that stores work contents required for manufacturing a product; an equipment information storage unit that stores constraint information of a tool mountable on the equipment; a production line configuration information storage unit that, in order of manufacturing processes of the product, stores a work content, work assignment equipment, a tool mounted on the equipment, and a process tact time in each of the manufacturing processes; and a production line configuration calculation unit that is activated immediately after the error occurs, prepares a change plan of assigning a work assigned to the equipment in which the error occurs to the equipment before or after the process or another equipment of the identical process and calculates a provisional production line configuration.