Conveyance System Weight Verification for Picking Accuracy
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Solution Overview
Problem
Conventional shipment conveyance systems risk feeding articles to subsequent processes without correcting picking failures, leading to potential errors and inefficiencies, especially when articles of the same kind are picked and barcodes need to be individually read.
Innovation Solution
A conveyance system that uses weight measurement to verify the number of articles picked by measuring the weight of containers before and after picking, allowing for double-checking of abnormalities and preventing incorrect feeding, with barcodes on containers reducing the need for individual article barcode reading and simplifying the picking process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual barcode reading is performed for each article during picking, then article identification accuracy is improved, but operation time and man-hours increase
Solution Approach 1:
Multiple articles of the same kind are combined into a single container, and one barcode is attached to the container representing all articles within. This merging approach eliminates the need to individually scan each article's barcode while maintaining accurate identification and counting of all articles in the container.
2Measurement precision
If weight measurement is implemented to verify picking accuracy, then counting precision is improved, but device complexity increases
Solution Approach 1:
The system uses the container's own weight characteristics to verify picking accuracy. By measuring the container's weight before and after picking operations, the system automatically detects whether the correct number of articles have been removed, enabling self-verification without complex external checking mechanisms.
3Measurement precision
If barcodes are attached to each article, then article tracking precision is improved, but ease of operation deteriorates
Solution Approach 1:
Instead of attaching barcodes to each individual article, a single barcode is attached to the container holding multiple articles. This merging approach maintains precise tracking of all articles through the container's barcode while dramatically simplifying the picking operation, as operators only need to scan the container barcode once rather than scanning each article individually.
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
This system reduces operation man-hours and time by allowing operators to confirm picked items and quantities without computer interaction, improving counting accuracy and preventing picking errors, while minimizing equipment investment costs.
Implementation Method 1
a weight measuring means that measures a weight of the container before picking of the articles and a weight of the container after picking of the articles
Data Source
AI summary
A conveyance system includes a feeding device, a reading device, a weight measuring device, a storage device, a notification device, and an arithmetic control device which compares the number of pickings of the articles obtained by dividing a difference between the reference weight value and a measurement value after operation as a weight of the container after picking of the articles by the unit weight, with the number of incoming orders, determines whether there is an excess or deficiency, and when there is an excess or deficiency, notifies the excessive or deficient number of articles by the notification device.