Item Identification on High-Speed Production Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional control systems for production/distribution lines are inadequate for real-time item identification, especially on high-speed lines where items are transported grouped, leading to issues with lost or misidentified items due to jams or fraudulent interception.
Innovation Solution
A method and system that utilize a processor to extract unique item identification data from a reading zone, where items are marked with unique identifiers, and store this data in a list corresponding to their positions, allowing for precise identification and detection of damaged items, even when items are transported in batches or groups, using cameras and image processing to read identifiers from digital images of groups of items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If items are transported grouped on high-speed production lines, then productivity is improved, but item identification reliability deteriorates due to lost or misidentified items
Solution Approach 1:
The system divides the batch of items into individual identification units by reading unique identifiers on each item separately while they are transported grouped. The controller processes identification data for each item individually, maintaining reliability despite grouped transport. This segmentation of the identification process resolves the contradiction between high-speed grouped transport and reliable item identification.
Solution Approach 2:
The system implements feedback by comparing the list of identified item identifiers with the actual batch composition after collection. The controller detects discrepancies between identified items and collected items, enabling real-time correction of identification errors and loss detection, thus maintaining reliability during high-speed grouped transport.
2Device complexity
If conventional image processing is used for barcode detection, then device complexity is reduced, but measurement precision deteriorates for groups of items
Solution Approach 1:
The system segments the identification task by reading unique identifiers on individual items within a batch separately, then processing each identifier independently. This allows conventional image processing techniques to be applied to each item individually, maintaining simplicity while achieving precise identification of all items in the group through systematic processing.
Solution Approach 2:
The system performs preliminary actions by pre-organizing items in their transport disposition and pre-positioning identifiers for reading. The controller is pre-programmed with the expected batch composition and identification ordering, enabling precise measurement without complex real-time processing adjustments.
3Device complexity
If items are collected into batches without individual tracking, then device complexity is reduced, but loss of information worsens due to fraudulent interception or jams
Solution Approach 1:
The system segments batch tracking into individual item tracking by assigning and reading unique identifiers to each item. The controller maintains a list of identified item identifiers, enabling individual item tracking within the batch. This segmentation prevents information loss from fraudulent interception or jams by tracking each item's identification status separately.
Solution Approach 2:
The system implements feedback by continuously comparing the list of identified item identifiers with the actual items collected in the batch. This feedback mechanism detects missing or extra items, preventing information loss from fraudulent interception or transportation jams while maintaining relatively simple tracking infrastructure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables robust real-time item identification and improved detection of damaged items on high-speed production/distribution lines, ensuring accurate tracking and tracing of items from the reading zone to packaging, reducing errors and enhancing security by associating time data with item ID data for diagnostic purposes.
Implementation Method 1
a camera (or a plurality of cameras around the reading zone, and possibly including illumination source for illuminating the items to be imaged) set for reading a barcode on one item at a time as the items in single file are transported through the reading zone
Implementation Method 2
illumination source for illuminating the items to be imaged
Data Source
AI summary
The disclosed method, and corresponding system, for controlling items on a production/distribution line relies on secure identification of items transported arranged in a given disposition along a transport path at a site of collection and packaging of the items, and association of ID data of some of the packed items with corresponding packaging ID data so as to ensure reliable identification of package content delivered on the line.