Interactive Virtual Lane Projection for Space-Efficient Self-Checkout
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Solution Overview
Problem
Space constraints in supermarkets, particularly at checkout aisles, limit the number of self-checkout stations and hinder user-friendly and secure operations due to the need for separate areas for cart arrival, scanning, and bagging, which also complicates fraud detection.
Innovation Solution
Implementing a self-checkout system with a top-down facing camera and smart projector that creates an interactive virtual lane, providing visual and audible guidance, and monitoring for fraud, allowing for dynamic reconfiguration and reduced physical barriers, thus optimizing space usage and improving the checkout process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional checkout stations use long lanes with distinct areas for cart arrival, scanning, and bagging, then the checkout process is well-organized, but the space required is excessive
Solution Approach 1:
The patent merges the input trail (cart arrival and scanning area) and output trail (bagging area) into a single unified checkout lane. The scanner is repositioned to face the customer at the end of the lane, allowing both scanning and bagging to occur in the same physical space, thereby reducing the overall footprint while maintaining process organization
Solution Approach 2:
The patent reconfigures the traditional linear progression of checkout areas by changing the spatial arrangement from separate longitudinal zones to a consolidated layout where the scanner faces the customer. This dimensional reorganization allows the bagging area to overlap with the scanning area, reducing the total space required
2Ease of operation
If self-checkout stations provide separated unload and bagging areas, then small shopping baskets are well-supported, but full shopping carts require much more space and receive little support
Solution Approach 1:
The unified lane design serves multiple functions simultaneously: it acts as both the input area for placing items and the output area for bagging. The scanner positioning allows the same physical space to handle both small baskets and full carts without requiring separate dedicated zones, making the system universally applicable to various cart sizes
3Productivity
If more self-checkout stations are added to increase capacity, then customer service improves, but the space required in the checkout aisle increases
Solution Approach 1:
By merging the input and output trails into a single lane, the patent reduces the space required per checkout station. This consolidation allows multiple stations to be arranged more densely in the available aisle space, increasing the number of functional checkout stations without proportionally increasing the total space occupied
Data Source
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AI summary
A retail store self-checkout area may include a scanner configured to enable a shopper to scan items being purchased. A bagging area may be positioned at the scanner. A top-down facing camera positioned and oriented to image a shopping cart or basket at the self-checkout area and to generate image signals of the shopping cart or basket. A projector may be configured to project dynamically alterable illumination signals onto a surface visible to the shopper when at the self-checkout area to provide visual guidance information to the shopper. The projector may be a smart projector, and may be configured to be a top-down facing projector to illuminate a floor at the self-checkout area. A system controller may be configured to drive the projector (e.g., smart projector) and to process images captured by camera to identify errors or fraudulent behavior during a self-checkout process.