Color Detection for Automated Paper Pickup Control

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Solution Overview

Problem

Conventional paper processing apparatuses lack the ability to control paper pickup operations precisely, especially when stopping or resuming at batch boundaries, leading to manual interventions due to limitations in detecting and differentiating between header and trailer cards.

Innovation Solution

A paper processing apparatus that uses partition cards with colored areas for easy detection, incorporating a color detection unit and pickup control mechanism to identify and manage batches automatically, allowing for precise control of paper pickup operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If conventional header cards with barcodes and magnetic patterns are used, then card identification is possible, but automated pickup control at batch boundaries cannot be achieved

Engineering Contradiction:
Improveautomated pickup controlVSAvoidcard detection
Core Design Contradiction:
Extent of automationVSDifficulty of detecting and measuring

Solution Approach 1:

The patent applies color changes by incorporating colored areas on header cards and partition cards that can be detected by a color detection unit. Different colors or color patterns indicate different card types (header card, partition card, trailer card), enabling automated detection and pickup control without complex magnetic or barcode reading systems.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent replaces the mechanical/optical detection systems (barcode scanners, magnetic pattern readers) with a simpler color detection mechanism. The color detection unit uses optical sensors to detect colored areas on cards, converting complex card identification into a simple color-based detection system that directly controls the pickup mechanism.

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

2Productivity

If manual intervention is used for batch boundary management, then operational control is possible, but productivity and operational efficiency deteriorate

Engineering Contradiction:
Improveoperational efficiencyVSAvoidmanual intervention requirement
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The system implements self-service by enabling the paper processing apparatus to automatically detect batch boundaries through color-coded partition cards and autonomously control pickup operations. The color detection unit identifies partition cards, and the pickup control unit automatically adjusts pickup timing and batch separation without requiring operator intervention, making the system self-managing for batch processing.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent implements feedback by using the color detection unit to continuously monitor cards in the loading unit, providing real-time information to the pickup control unit. When a partition card is detected, the system receives feedback about the upcoming batch boundary and automatically adjusts pickup operations accordingly, creating a closed-loop control system that improves productivity.

Inventive Principle:
Principle #23Feedback

3Extent of automation

If partition cards with colored areas are used, then automated batch management is achieved, but device complexity increases due to additional detection and control units

Engineering Contradiction:
Improvebatch boundary managementVSAvoiddetection and control units
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The patent simplifies device complexity by replacing complex detection systems (barcode readers, magnetic sensors) with a straightforward color detection unit. This substitution uses simple optical sensors to detect colored areas on cards, reducing the complexity of the detection and control mechanism while achieving automated batch boundary management.

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

Solution Approach 2:

The patent uses color changes as a simple, visual identification method that can be detected by basic optical sensors. By encoding card type information in colors rather than complex patterns or magnetic properties, the system achieves automated batch management with minimal detection and control infrastructure.

Inventive Principle:
Principle #32Color changes

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 automated control of paper pickup operations, preventing batch mixing and allowing for seamless batch boundary management, improving operational efficiency and reducing manual errors.

Implementation Method 1

a color detection unit which detects a color of the target medium placed at a front end of the loading unit in a pickup direction

Methodology Applied
Scientific EffectLight reflection/absorption: Reflection

Data Source

PatentEP1762526A3Paper processing apparatus and header card used therefor
Publication Date: 2009.02.25 KK TOSHIBA
  • EP1762526A3 patent drawing
  • EP1762526A3 patent drawing

AI summary

In a paper processing apparatus (1) including a loading unit (2), pickup mechanism (3), color detection unit (12), pickup control unit, discrimination unit (5), collecting unit (9), and rejecting unit (8), partition cards having colored areas and medium are loaded into the loading unit (2).