Shopping Cart Item Verification Using Location Data

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Solution Overview

Problem

Existing scan and go technologies in retail environments face issues with accuracy and efficiency in verifying items placed in physical shopping carts, leading to potential shortages and increased labor costs due to human error and inefficiencies in manual checks.

Innovation Solution

Implementing a system where physical shopping carts are equipped with product detection systems and paired with mobile devices to electronically verify items using location data and sensor information, comparing scanned items to actual items in the cart, providing accurate and efficient validation through a verification engine.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual checks are used to verify items in scan and go systems, then labor costs increase and human error occurs, but automated verification systems were not yet available

Engineering Contradiction:

Improveitem verification accuracyVSAvoidverification system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The shopping cart system performs self-verification of items through integrated sensors and computing devices that automatically detect products, compare them against the virtual shopping cart, and validate item placement without requiring external manual verification. The cart autonomously monitors its own contents using weight sensors, product detection systems, and location tracking.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Manual mechanical verification processes are replaced with electronic and optical detection systems. The system uses product detection sensors, weight sensors, cameras, and RFID readers to automatically identify and verify items, substituting human visual inspection and manual checking with automated electronic verification mechanisms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If scan and go technology is implemented without verification, then checkout speed increases, but item accuracy decreases leading to shortages

Engineering Contradiction:

Improvecheckout speedVSAvoiditem identification accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The system performs preliminary verification of items before the customer completes checkout. As customers place items in the cart, the system proactively detects products, compares them against the virtual shopping cart in real-time, and validates item placement before the customer reaches the checkout point, preventing shortages before they occur.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system provides immediate feedback to customers when items are misplaced or incorrectly placed in the cart. Through notifications and alerts, the system informs customers of verification issues in real-time, allowing them to correct placement errors before completing the checkout process, thereby maintaining both speed and accuracy.

Inventive Principle:

Principle #23Feedback

3Reliability

If multiple verification methods are used to ensure item accuracy, then verification reliability improves, but system complexity and processing time increase

Engineering Contradiction:

Improveverification reliabilityVSAvoidverification processing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The verification process operates continuously throughout the shopping experience rather than as a discrete post-shopping step. Sensors continuously monitor item placement, weight changes, and product detection in real-time as customers shop, eliminating the need for separate verification steps and maintaining constant validation without adding processing delays.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

Multiple verification functions are merged into a single integrated system. The shopping cart combines product detection, weight sensing, location tracking, and database comparison into one unified verification mechanism, allowing simultaneous execution of multiple verification methods without the overhead of separate systems.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20230368216A1Shopping cart with location-based item verification

Publication Date: 2023.11.16 TARGET BRANDS INC

AI summary

In some implementations, a computer-implemented method verifies item placed in physical shopping carts, using location data. An item verification engine receives an item scanned notification indicating that a mobile computing device has scanned an item, an item sensed notification indicating that a cart computing system has sensed the item being added to a shopping cart, item verification data that specifies an expected location of the scanned item, and actual location data that represents an actual location of the item in the retail environment. After receiving the item scanned notification, the item sensed notification, the item verification data, and the actual location data, a verification of the item is performed based at least in part on the item verification data and the actual location data. The item verification engine provides verification results based on performing the verification of the item, for receipt by the mobile computing device.