Checkout System Product Matching for Authorized Store Exit
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Solution Overview
Problem
There is a need to properly guide customers who have completed payment in stores to leave the store effectively.
Innovation Solution
A checkout system comprising a storage device, scanner, notification device, and processors that control the notification based on product identifiers and transaction data to allow customers to pass through after payment, using various types of POS terminals and accounting gates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If customers complete payment at the checkout system, then the transaction is processed successfully, but it becomes difficult to verify whether customers have actually purchased all products before leaving the store
Solution Approach 1:
The system performs preliminary verification by scanning products at the exit gate before customers leave the store. The accounting gate captures images of products carried by customers and verifies them against purchase records in advance, ensuring all purchased items are accounted for before exit is permitted.
Solution Approach 2:
An accounting gate serves as an intermediary between the checkout system and store exit. This intermediate device captures product images, performs verification against transaction data, and only allows passage after confirmation that all purchased items are present, thereby solving the verification problem without requiring direct integration with the payment system.
2Reliability
If the store uses traditional checkout methods, then the system is simple to operate, but customers may leave without properly scanning or paying for all products
Solution Approach 1:
The accounting gate enables self-service verification by automatically capturing images of products carried by customers and comparing them against purchase records. Customers simply need to pass through the gate with their purchased items, and the system autonomously performs verification, eliminating the need for manual scanning at exit while ensuring accuracy.
Solution Approach 2:
The system replaces manual product scanning and verification mechanics with automated image capture and digital comparison. Instead of requiring customers or staff to physically scan each item at the exit, the accounting gate uses cameras and image processing to automatically identify and verify products against electronic transaction data.
3Reliability
If the store implements exit verification, then unauthorized exit is prevented, but the process of verifying customers after payment increases time consumption
Solution Approach 1:
The verification process occurs continuously in the background as customers pass through the accounting gate without interrupting their flow. The system captures images, compares them against purchase records, and makes verification decisions in real-time during the natural exit process, rather than requiring separate verification steps that would pause customer movement.
Solution Approach 2:
The system rapidly processes verification by capturing multiple images in quick succession as customers pass through the gate and immediately comparing them against transaction data. The automated image recognition and matching algorithms operate at high speed to minimize the time customers spend at the verification point, allowing quick passage for those who have properly purchased all items.
Data Source
AI summary
According to an embodiment, a checkout system stores, in a storage device, list data indicating a list of transaction products that are subjects of a transaction in a store for each paid transaction. The checkout system narrows down transactions including one or more products identified by one or more identifiers acquired by a scanner as transaction products by referring to the list data stored in the storage device. Further, the checkout system controls a notification device to notify a customer of that he/she is allowed to pass through in accordance with narrowing down of the transactions to one transaction.