Shopping Cart Handle RFID Interface for Seamless Checkout

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Operating a shopping cart while interacting with a computing system is cumbersome due to the lack of efficient and intuitive methods for user input and data entry.

Innovation Solution

Integration of RFID tags with near-field and far-field components into the shopping cart handle, allowing users to actuate push buttons to mechanically and electrically couple these components, enabling communication with an RFID reader and executing actions on an interactive display, such as navigating graphical user interfaces or entering data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional manual interaction methods are used with computing systems, then users can operate the system, but the process becomes cumbersome when simultaneously operating a shopping cart

Engineering Contradiction:

Improveease of interaction with computing systemVSAvoidcomplexity of operating cart and system simultaneously

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical keyboard input with RFID (radio frequency identification) technology. Users simply present their shopping cart containing RFID-tagged items near the reader, and the system automatically detects and processes the items wirelessly, eliminating the need for manual typing or button pressing.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-service operation where the shopping cart itself becomes the input device. The RFID tags on items automatically communicate their information to the computing system without requiring user intervention for data entry, allowing users to shop naturally while the system handles data capture autonomously.

Inventive Principle:

Principle #25Self-service

2Productivity

If manual data entry is required for shopping items, then the computing system can track purchases, but the process is time-consuming and reduces productivity

Engineering Contradiction:

Improvespeed of data entryVSAvoidtime spent on manual interaction

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

RFID tags are pre-attached to shopping items before they reach the customer. This preliminary tagging enables automatic identification and data capture when items are placed in the cart, eliminating the need for manual scanning or data entry at the point of sale and significantly reducing transaction time.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces slow manual data entry processes with rapid RFID wireless communication. Multiple items can be identified and tracked simultaneously in seconds through radio frequency signals, dramatically increasing data entry speed and reducing customer wait times.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If simple RFID tags are used, then the system is easy to operate, but the tags may be activated accidentally when not intended

Engineering Contradiction:

Improvesimplicity of RFID interactionVSAvoidaccuracy of RFID activation

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The RFID system is segmented into two distinct components: a passive RFID tag attached to the shopping cart and an active RFID reader at the point of sale. This segmentation allows the system to remain simple for the user (just shop with the cart) while providing reliable controlled activation through the reader's targeted signal at the intended transaction point.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The RFID reader acts as an intermediary that controls and validates RFID tag activation. Rather than relying on simple proximity-based activation that could be accidental, the reader mediates the interaction by selectively activating and reading tags only when the shopping cart is properly positioned at the point of sale, ensuring accurate and intentional data capture.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Facilitates seamless interaction with computing systems by allowing users to easily navigate and input data using a shopping cart, enhancing user experience and reducing the complexity of operating both the cart and the computing system simultaneously.

Implementation Method 1

The RFID tag can transmit a radio frequency signal to a RFID reader disposed with respect to the computing system

Methodology Applied

Scientific EffectRadio frequency signal transmission: Electromagnetic Induction

Data Source

PatentUS10380390B2Shopping cart with an RFID interface and associated systems and methods

Publication Date: 2019.08.13 WALMART APOLLO LLC

AI summary

Described in detail herein are systems and methods for interacting with an interactive display using a shopping cart. A user navigate a shopping cart to a computing system including an interactive display and can actuate or press one or more push buttons associated with RFID tags integrated with the handle portion on a shopping cart to interact with the interactive display. A unique identifier can be associated with each RFID tag. A RFID reader disposed with respect to the computing system can detect the unique identifiers associated with the one or more detected RFID tags. The RFID reader can transmit the unique identifiers to the computing system. The computing system can execute the retrieved actions on the interactive display, based on the one or more buttons actuated or pushed and the correlated RFID tags.