Partition Card Identification via Through Holes

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Solution Overview

Problem

Conventional paper sheet processing devices that use color detecting units to classify paper sheets with partition cards incur a cost increase due to the necessity of these units.

Innovation Solution

A paper sheet processing device and partition card system that employs a charging inlet, a detection unit, and a control unit to differentiate between target sheets and partition cards using identification hole groups with through holes, allowing the detection unit to identify the partition card and determine the type of sheet based on the presence or absence of these holes, thereby reducing the need for costly color detection units.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a color detecting unit is used to identify partition cards, then classification accuracy is improved, but device cost increases

Engineering Contradiction:

Improveclassification accuracyVSAvoiddevice cost

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The invention extracts the identification function from the complex color detecting unit and implements it through simple structural features (through holes) on the partition card. The detection unit only needs to detect the presence or absence of through holes, which are standard components, rather than requiring sophisticated color sensing capabilities. This extraction of the essential identification function resolves the contradiction by maintaining classification accuracy while eliminating the need for expensive color detection hardware.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention uses through holes as a disposable, simple structural feature on the partition card for identification purposes. Instead of investing in expensive, complex, and potentially fragile color detecting units, the system uses inexpensive structural modifications (holes) that can be easily implemented on standard partition cards. This approach maintains identification functionality while dramatically reducing device cost and complexity.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Reliability

If a color detecting unit is installed to distinguish partition cards from paper sheets, then identification reliability is improved, but device structure becomes more complex

Engineering Contradiction:

Improveidentification reliabilityVSAvoiddevice structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The invention replaces the optical/color-based detection system with a simple structural/morphological detection approach. Instead of using color detecting units that require complex optical paths, light sources, and signal processing, the system uses a detection unit that simply checks for the presence or absence of through holes. This mechanical/structural substitution maintains identification reliability while dramatically simplifying the device structure.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If identification features are added to partition cards, then detection accuracy is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvedetection accuracyVSAvoidmanufacturing complexity

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

The invention segments the partition card structure by adding discrete through holes at specific positions. These holes are simple geometric features that can be easily incorporated into the partition card manufacturing process using standard punching or drilling techniques. The segmentation of the card surface into regions with and without holes provides clear detection signals without requiring complex manufacturing processes, thus maintaining ease of manufacture while improving detection accuracy.

Inventive Principle:

Principle #1Segmentation

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 solution simplifies and downsizes the identification process, reducing costs and preventing the mixing of different classifications during processing, while maintaining effective classification of paper sheet groups.

Implementation Method 1

a detection unit that detects take-in of the paper sheets by the charging unit, and detects the identification hole group

Methodology Applied

Scientific EffectOptical detection: Light

Data Source

PatentUS10789802B2Paper sheet processing device and partition card

Publication Date: 2020.09.29 LAUREL PRECISION MACHINES

AI summary

A paper sheet processing device includes: a charging inlet that takes in paper sheets in a conveyance direction, the paper sheets including at least one target sheet and a partition card overlapped on the target sheet, the partition card having a main surface portion having at least one identification hole group, the identification hole group having at least two through holes arranged along the conveyance direction; a detection unit that detects take-in of the paper sheets by the charging unit, and detects the identification hole group; and a control unit that determines a paper sheet is the partition card in a case where the identification hole group has been detected by the detection unit, and determines that a paper sheet is the target sheet in a case where the identification hole group has not been detected by the detection unit.