Settlement device
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Solution Overview
Problem
In self-service and traditional checkout systems, customers often struggle to accurately direct symbols to reading units due to confusion between multiple imaging units, leading to reduced accuracy in symbol imaging.
Innovation Solution
A settlement device with a first reading component and at least one second reading component, where the second component is less conspicuous and partially or completely overlaps the first reading region, along with a light emitting device to guide the customer to the first reading unit, ensuring accurate symbol imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple imaging units are provided to improve symbol reading accuracy, then reading reliability is improved, but customer confusion increases and ease of operation deteriorates
Solution Approach 1:
The patent applies local quality by making the first imaging unit conspicuous (with light emitting units) while making the second imaging unit inconspicuous. This creates a clear distinction in local characteristics between the two reading components, guiding customers to direct symbols toward the conspicuous first unit while the second unit provides backup reading capability without causing confusion.
Solution Approach 2:
The patent implements asymmetry by providing light emitting units only for the first imaging unit, making it visually distinct and more noticeable to customers. The second imaging unit deliberately lacks these light emitting units, creating an asymmetric configuration that helps customers identify the primary reading target while maintaining multiple reading capabilities.
2Ease of operation
If light emitting units are provided for each imaging unit to guide customers, then ease of operation is improved, but customer confusion increases due to multiple light sources
Solution Approach 1:
The patent extracts the light emitting units from the second imaging unit, providing them only for the first imaging unit. This selective extraction of the guidance function creates a single clear visual target for customers, eliminating the confusion that would arise from multiple light sources while maintaining the symbol reading guidance function.
Solution Approach 2:
The light emitting units serve as an intermediary that mediates between the imaging units and the customer. By providing this guidance function only for the first imaging unit, the system creates a clear intermediary signal that directs customer attention to the correct reading target without the interference of multiple competing signals.
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
The solution prevents customer confusion and maintains high accuracy in symbol reading by synchronizing light emission and imaging times between the first and second reading components, allowing unaccustomed users to correctly position symbols for scanning.
Implementation Method 1
a light emitting device provided in the first reading component
Data Source
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AI summary
A settlement device according to an embodiment includes a first reading unit configured to read a symbol attached to a commodity located in a first reading region, one or a plurality of second reading units configured to read a symbol attached to a commodity located in a second reading region entirely or partially overlapping the first reading region, and a light emitting unit for causing a customer to recognize a position of the first reading unit.