Self-Checkout Bag Weight Auditing System for Theft Prevention
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Solution Overview
Problem
Current self-checkout systems lack an efficient method to ensure accuracy and reduce theft by verifying the distribution and weight of items placed in bags during the shopping process, especially in multi-shopper scenarios where items need to be segregated by type or brand.
Innovation Solution
An audited shopping system that allows shoppers to select or have items automatically directed into specific bags, calculating and comparing the weight and cost of each bag's contents, enabling accurate auditing and potentially skipping the audit process based on a shopper's audit score.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If self-checkout systems use simple scanning and bagging without weight verification, then the ease of operation is improved, but the reliability of item accuracy and theft prevention deteriorates
Solution Approach 1:
The system implements continuous weight feedback by placing bags on scales during the shopping process. The scale provides real-time weight information that feeds back to the system, which then compares the actual weight against the expected weight of scanned items. This closed-loop feedback mechanism enables automatic detection of weight discrepancies without adding significant operational complexity for the consumer.
Solution Approach 2:
The patent replaces manual verification methods with automated electronic weight measurement and comparison systems. Instead of relying on consumers to manually track item weights or store employees to physically check bags, the system uses electronic scales integrated with the scanning system to automatically measure and verify weights, substituting mechanical human verification with automated electronic measurement.
2Measurement precision
If the system implements weight verification for all items, then the measurement precision of item distribution is improved, but the device complexity increases
Solution Approach 1:
The system divides the verification process into segments: initial scanning phase where items are registered with their expected weights, bagging phase where bags are placed on scales, and verification phase where actual weights are compared against expected weights. This segmentation allows the system to implement comprehensive weight verification without requiring all components to operate simultaneously at full complexity, reducing the perceived device complexity while maintaining measurement precision.
Solution Approach 2:
The system performs preliminary actions by pre-registering each scanned item with its expected weight and characteristics before the actual bagging occurs. This preliminary data collection and organization enables the subsequent weight verification to be a simple comparison process rather than requiring complex real-time calculation and decision-making, thereby reducing device complexity while maintaining measurement precision.
3Manufacturing precision
If the system tracks and verifies weight of each bag individually, then the manufacturing precision of distribution accuracy is improved, but the loss of time in processing increases
Solution Approach 1:
The system maintains continuous tracking of bag weights throughout the shopping process rather than performing discrete, interruptive verification steps. Bags remain on scales continuously, and the system continuously monitors weight changes as items are added, eliminating the need for separate verification steps that would cause time losses. This continuous monitoring approach maintains distribution accuracy while minimizing processing time interruptions.
Solution Approach 2:
The system enables skipping of detailed verification steps for trusted users or low-risk scenarios. The patent mentions that the system can determine whether to perform full verification or skip to faster checkout based on pre-established criteria, allowing the system to rush through the verification process when appropriate while maintaining accuracy when needed, thereby reducing overall time loss.
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
The system ensures accurate distribution and weight verification of items in bags, reducing errors and theft, while providing flexibility in bagging and payment processes, and can incentivize shoppers through gamified audit scoring.
Implementation Method 1
a weight cell moveably extend into the frame through the lower opening to selectively contact at least one of the plurality of shopping bags hanging from the frame
Data Source
AI summary
A non-transitory computer-readable medium whose contents, when executed by a computing system, can cause the computing system to perform operations for an audited shopping system that include receiving scanned product information identifying a current product and an associated weight of the current product. An indication can be determined to place the current product in a selected bag among a plurality of bags. The associated weight of the current product can be added to a previous calculated weight of products in the selected bag to provide a current calculated weight of products in the selected bag and then all previous operations can be repeated until receiving an indication that shopping is done to provide a plurality of products that are distributed among the plurality of bags, wherein each bag has a respective calculated weight of all products in the bag and indicating a selected one of the plurality of bags as an audited bag for weighing.