Shopping Cart Detection Device for Multi-Commodity Payment
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Solution Overview
Problem
Conventional shopping carts equipped with electronic devices for self-payment processing cannot handle registration and payment processing for multiple commodities due to the lack of detection capabilities in the lower placing portion, limiting their functionality.
Innovation Solution
The shopping cart is designed with a detection device that includes a load sensor with strain gauges in both the upper and lower placing portions, allowing for accurate detection of commodities on both surfaces, enabling comprehensive registration and payment processing for multiple items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a detection device is installed only in the upper placing portion, then the structure remains simple, but the lower placing portion cannot be used for payment processing
Solution Approach 1:
The patent merges the detection functionality into a single integrated detection device that simultaneously monitors both the upper and lower placing portions. This is achieved by installing one detection device on the cart body that detects commodities in both portions, eliminating the need for separate detection devices in each portion and resolving the contradiction between versatility and complexity.
2Measurement precision
If multiple detection devices are installed in both upper and lower placing portions, then detection accuracy improves, but device complexity increases
Solution Approach 1:
The patent applies universality by designing a single detection device that performs multiple functions: detecting commodities in both the upper and lower placing portions, and identifying whether items are placed or removed from either portion. This multi-functional approach achieves comprehensive detection accuracy without increasing the number of devices, thus resolving the contradiction between measurement precision and device complexity.
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
This configuration allows for efficient and accurate registration and payment processing of multiple commodities by integrating detection capabilities across both placing portions, enhancing the cart's functionality during busy periods.
Implementation Method 1
a load sensor 10 with strain gauges
Data Source
AI summary
Provided is a shopping cart capable of dealing with registration processing or payment processing when purchasing a lot of commodities. A shopping cart includes a cart body; an electronic device attached to the cart body and configured to perform at least one of registration processing and payment processing of commodities; an upper placing portion provided in an upper stage of the cart body and having the commodities placed thereon; a lower placing portion provided in a lower stage of the cart body and having the commodities placed thereon; and a detection device configured to detect presence of the commodities placed on the upper placing portion and the lower placing portion.