Production Line Item Identification via Image Control Area
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Solution Overview
Problem
Conventional control systems for automated production lines face reliability issues in accurately counting and identifying items, especially when items are in contact, leading to errors in production volume estimation and tracing data, which affects taxation and counterfeiting control.
Innovation Solution
A control system utilizing image processing to identify items by digital images, restricting the image to a control area within the item's outline to prevent overlapping, and incorporating encoded tracing data for reliable production volume determination and authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If encoded identification data (barcode) is used for item identification, then identification speed is improved, but reliability of identification deteriorates due to errors, defects, frauds, and item motion
Solution Approach 1:
The patent introduces an intermediary authentication system that includes: (1) reading encoded identification data from the item, (2) capturing an image of the item, (3) extracting authentication features from the image, (4) verifying the encoded data against these features, and (5) obtaining authentication data from a remote server. This intermediary verification process resolves the contradiction by maintaining fast identification while adding reliability through cross-validation.
Solution Approach 2:
The system implements feedback by continuously verifying encoded identification data against image-based authentication features and remote server data. The authentication result feeds back into the identification process, allowing the system to accept or reject identification based on multiple verification layers, thus improving reliability without sacrificing speed.
2Device complexity
If conventional barcode reading is used, then identification process is simple, but production volume control accuracy deteriorates due to reading errors
Solution Approach 1:
The patent adds an intermediary authentication layer that includes image capture, feature extraction, and server verification. This intermediary process resolves the contradiction by maintaining simple barcode reading while adding multiple verification steps that improve production volume control accuracy through cross-validation of identification data.
3Loss of information
If tracing data is included on items, then tracking capability is improved, but reliability of tracing data deteriorates due to missing or wrong information
Solution Approach 1:
The patent introduces an intermediary authentication system that verifies tracing data through multiple channels: (1) reading encoded tracing data from the item, (2) capturing images for feature extraction, (3) cross-referencing with authentication databases, and (4) obtaining verification from remote servers. This intermediary verification process resolves the contradiction by maintaining complete tracing information while improving reliability through multi-layer validation.
4Productivity
If items are in contact on the production line, then production efficiency is improved, but identification accuracy deteriorates due to overlapping and motion control difficulties
Solution Approach 1:
The patent applies preliminary action by capturing images of items at strategically chosen moments during their movement on the production line. The system predicts optimal capture timing based on item speed and position, taking images before items move into overlapping positions. This preliminary image capture resolves the contradiction by maintaining high production efficiency with contacting items while ensuring identification accuracy through timely imaging.
Data Source
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AI summary
The invention relates to a method for controlling a production of items on a production line, wherein a digital image of each of said items is processed so as to obtain at least identified product type data and identified item data, said identified product type data and identified item data being further used for determining a reliable production volume per product type and per associated item.