Automated Linen Sorting Using Image Recognition and Conveyors

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Solution Overview

Problem

Current methods for sorting and separating linen handiworks in industrial laundries are labor-intensive and inefficient, requiring significant manual effort and resources, leading to high costs and reduced operational efficiency.

Innovation Solution

An industrial machine equipped with conveying means, detection systems, and a central processing unit that automatically identifies and sorts linen items based on type and material by acquiring images and using classification algorithms, reducing the need for manual labor and optimizing resource use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual sorting by operators is used, then sorting accuracy is maintained, but labor costs and time consumption increase significantly

Engineering Contradiction:
Improvesorting speedVSAvoidmanual operation requirement
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical sorting operations with an automated system comprising image capture devices, processing units, and robotic manipulation mechanisms. The system captures images of linen articles, processes them to identify types and materials, and automatically directs articles to appropriate collection containers, eliminating the need for manual visual inspection and handling.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-service sorting where the machine autonomously performs the entire sorting process without human intervention. The processing unit independently analyzes image data, determines article classification, and controls the robotic mechanisms to sort articles accordingly, making the system self-sufficient in performing the sorting task.

Inventive Principle:
Principle #25Self-service

2Loss of time

If automated sorting machines are introduced, then labor costs are reduced, but initial investment and system complexity increase

Engineering Contradiction:
Improvesorting timeVSAvoidmachine complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The sorting system is divided into distinct functional modules: image capture devices for data acquisition, processing units for analysis and decision-making, and robotic manipulation mechanisms for physical sorting. This segmentation allows each component to be optimized independently and facilitates easier maintenance and upgrades, reducing the overall complexity burden despite the automated functionality.

Inventive Principle:
Principle #1Segmentation

3Measurement precision

If detailed sorting by fabric type is performed, then separation accuracy improves, but processing time and operational complexity increase

Engineering Contradiction:
Improvesorting precisionVSAvoidprocessing throughput
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The system performs preliminary actions by capturing complete images of all articles before sorting begins and pre-processing these images to identify key characteristics. This allows the processing unit to make rapid classification decisions during the sorting operation, maintaining high precision in fabric type identification while improving overall processing throughput by avoiding real-time analysis delays.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2159318B1Device and method for the recognition and/or sorting of linen handiworks.
Publication Date: 2016.08.17 TORRE ENGINEERING SRL
  • EP2159318B1 patent drawingFigure 1
  • EP2159318B1 patent drawingFigure 2
  • EP2159318B1 patent drawingFigure 3

AI summary

An industrial machine (1) for the recognition and/or sorting of linen handiworks including a support framework (2) which stands on a reference surface (P), first conveying means (3), coupled with the support framework (2) and suitable to receive said linen handiworks, second conveying means (4), coupled with the support framework (2) and cooperating with the first conveying means (3) from which they receive the linen handiworks, detection means (5), facing the second conveying means (4) and suitable to acquire an image of the linen handiworks, identification and allocation means (6) of such an image which share out the linen handiworks according to the type, and collection means (7), located downstream said second conveying means (4) and suitable to receive said linen handiworks shared out by type by the identification and allocation means (6).