Biometric Self-Checkout Payment Processing

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Solution Overview

Problem

Self-service checkout systems face inefficiencies in payment processing, particularly in distinguishing and authenticating users, which can lead to errors and delays in transaction completion.

Innovation Solution

The method involves acquiring and storing biometric feature information of a settlement user upon receiving a product settlement request, using image acquisition technology to detect and verify biometric features, and linking this information to a payment account for seamless payment processing, thereby reducing the need for manual identification and improving transaction speed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual identification methods are used for user authentication, then system complexity is reduced, but payment processing speed and accuracy deteriorate

Engineering Contradiction:

Improvepayment processing speedVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces manual identification methods with automated biometric recognition systems. Image acquisition apparatus capture user facial features, and computer vision algorithms automatically identify and authenticate users, eliminating the need for manual ID checking and significantly accelerating payment processing while maintaining system reliability

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables users to complete payment authentication independently through biometric recognition. Users simply need to present themselves for facial recognition, and the system automatically completes identification and payment authorization without requiring staff intervention, thereby improving processing speed and reducing operational complexity

Inventive Principle:

Principle #25Self-service

2Reliability

If biometric verification is performed at multiple time points, then user substitution errors are reduced, but processing time increases

Engineering Contradiction:

Improveuser authentication accuracyVSAvoidprocessing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs biometric verification at multiple strategic time points: first when the user enters the settlement area, then when products are added to the cart, and finally during payment confirmation. This preliminary and continuous verification ensures user identity consistency throughout the transaction process, preventing substitution errors while managing processing time through efficient timing of verification steps

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback loops where biometric data captured at different time points are compared and verified against each other. The system provides real-time feedback on verification status and automatically adjusts processing flow based on verification results, ensuring high reliability while minimizing unnecessary delays through intelligent feedback-driven decision making

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11200576B2Method and system for self-checkout

Publication Date: 2021.12.14 ADVANCED NEW TECHNOLOGIES CO LTD

AI summary

The specification describes methods and systems for payment processing. An example method comprises: receiving a product settlement request from a settlement user; acquiring and storing biometric feature information of the settlement user; receiving product information from the settlement user; obtaining a payment account of the settlement user according to the stored biometric feature information; and deducting, from the payment account, a consumption amount determined based on the product information.