Mobile Device Self-Checkout Using RFID Price Detection
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Solution Overview
Problem
Long checkout lines due to cumbersome self-checkout systems that are slower than traditional checkout lines, leading to customer frustration and reduced retail revenues, as customers must individually scan and pay for items, causing delays and backups.
Innovation Solution
A mobile device-based system for price searching and customer self-checkout that receives price and seller identification data, allowing users to scan products and charge for purchases electronically, enabling efficient price comparison and automatic transaction processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional self-checkout systems are used, then customers can perform self-service, but the checkout process becomes slower and more cumbersome
Solution Approach 1:
The system performs preliminary actions by automatically scanning products as customers pick them up from shelves using RFID tags. The mobile device continuously monitors and tracks items in the customer's possession before reaching the checkout point, eliminating the need for manual scanning at the register and accelerating the checkout process.
Solution Approach 2:
The patent replaces the mechanical scanning process (manual barcode scanning at checkout) with an automated electronic RFID recognition system. The mobile device automatically detects and identifies products through RFID tags embedded in or attached to items, substituting the manual mechanical action with electronic automation to improve checkout speed.
2Reliability
If customers scan items individually at checkout stands, then transactions can be processed, but line backups form and delays occur
Solution Approach 1:
The system completes the scanning and identification process in advance as customers shop, so that when they reach the checkout point, the system already has all item information ready. This preliminary action eliminates the sequential scanning process at the checkout stand, reducing waiting time while maintaining reliable transaction processing.
Solution Approach 2:
The RFID scanning process operates continuously as customers move through the store and place items in their carts or bags, rather than being interrupted by the batch processing at checkout stands. This continuous action ensures no time is lost between item selection and transaction initiation, eliminating line backups.
3Ease of manufacture
If manual scanning and payment at checkout stands is used, then purchases can be completed, but customer time is wasted and frustration increases
Solution Approach 1:
The system enables complete self-service by allowing customers to shop and have items automatically tracked using their personal mobile devices. The automated RFID recognition and integrated payment system eliminate the need for cashier assistance, allowing customers to complete purchases independently and quickly, reducing both time loss and frustration.
Solution Approach 2:
The mobile device serves multiple functions: it acts as an RFID scanner, product information display, price comparison tool, and payment terminal all in one device. This multi-functionality consolidates what previously required separate systems (scanner, receipt printer, card reader) into a single portable unit, streamlining the purchase completion process.
Data Source
AI summary
Price searching and customer self-checkout on a mobile device is provided. A system for purchasing products comprises at least one subsystem that receives from a mobile device at least price and seller identification data of a product, (at least the price of said product having been electronically read by the mobile device), and at least one subsystem that charges a user for the product based upon the received price and identification data.