Workpiece Identification via Machine Operating Status Data
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing production control systems struggle to accurately identify workpieces on a production line, especially when some are removed due to defects, as they rely solely on the order of steps and time periods, leading to synchronization issues.
Innovation Solution
A production control system that uses operating statuses from processing machines to identify workpieces, allowing for different manufacturing processes and inspections, without the need for ID tags, and manages workpieces taken out or returned to the line by associating time information and operating statuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ID tags are stuck on workpieces for identification, then workpiece identification is enabled, but presswork or cutting operations cannot be performed on the workpieces
Solution Approach 1:
The system creates a virtual copy of the workpiece identification process by using sensor data and time information to generate digital workpiece identifiers. Instead of physically tagging workpieces, the system captures images and metadata to create virtual identification records that are stored and processed digitally, enabling both identification and uninterrupted manufacturing operations.
2Device complexity
If workpieces are identified based on order of steps and time periods, then identification system is simple, but identification becomes out of sync when workpieces are taken out due to defects
Solution Approach 1:
The system implements feedback mechanisms by continuously monitoring workpiece flow through sensors at multiple stations. When a workpiece is removed or interrupted, the system detects the absence through sensor feedback and automatically adjusts the identification sequence by referencing stored time information and operational status data, thereby maintaining synchronization without increasing physical system complexity.
Solution Approach 2:
The system performs preliminary actions by pre-recording time information and operational status data for each workpiece as it passes through each station. This advance data capture creates a reference framework that allows the system to quickly re-synchronize identification when interruptions occur, without requiring complex real-time adjustments.
3Measurement precision
If adhesive labels are stuck on workpieces for identification, then individual workpiece identification is enabled, but the identification method becomes unsuitable for pressed or cut workpieces
Solution Approach 1:
The system replaces physical adhesive labels with digital copies of workpiece identification data. Sensors capture images and operational parameters to create virtual identification records that can be applied to any workpiece type regardless of whether it undergoes pressing or cutting operations, thereby expanding adaptability while maintaining identification precision.
Data Source
AI summary
A production control system includes a plurality of processing machines configured to successively process a plurality of workpieces conveyed on a production line, and a system server connected to the plurality of processing machines, in which the system server acquires an operating status associated with a time from each of the plurality of processing machines, associates the acquired operating statuses with the plurality of workpieces successively arriving at the processing machines, and thereby identifies each of the plurality of workpieces conveyed on the production line.