Intelligent Shopping Cart with Touchscreen and Multi-Sensor Verification
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Solution Overview
Problem
Existing intelligent shopping carts face challenges in quickly finding specific goods, accurately identifying commodities, managing weights and prices, and preventing theft, especially during peak periods, due to limitations in RFID technology and weight-based anti-theft systems.
Innovation Solution
An intelligent shopping cart equipped with a touchscreen computer, weight sensor, code-scanning device, monitoring device, positioning device, voice broadcasting device, and NFC payment system, which communicates with a server to provide accurate weight and commodity information, enable fast checkout, and includes an anti-theft system using a loadometer for weight verification at entrances and exits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If RFID technology is used to read nearby commodities, then commodity information can be obtained, but the number of displayed commodities increases to dozens or tens, resulting in high selection error rate and slow reaction speed
Solution Approach 1:
The patent segments the commodity identification process by combining RFID broad scanning with precise filtering methods. The RFID device first reads multiple commodities, then the system segments the results by comparing weights, barcodes, and images to identify the exact target commodity, thereby maintaining both comprehensive information acquisition and high identification accuracy.
Solution Approach 2:
The patent introduces intermediary verification mechanisms (weight comparison, barcode scanning, image recognition) as mediators between RFID reading and final commodity identification. These intermediaries filter the dozens of RFID-read commodities to precisely identify the target, resolving the contradiction between quantity of information and identification accuracy.
2Reliability
If weight-based anti-theft system is used, then theft prevention can be achieved, but commodities with same weight but different prices cannot be distinguished, resulting in high error rate and loss opportunities
Solution Approach 1:
The patent merges multiple identification methods (RFID reading, weight measurement, barcode scanning, image recognition) into a comprehensive verification system. By combining these methods, the system maintains reliable theft prevention through weight monitoring while achieving precise commodity identification through additional verification layers, thus resolving the contradiction between reliability and precision.
Solution Approach 2:
The patent creates a multi-functional identification system that serves both theft prevention and accurate pricing functions simultaneously. The weight sensor serves dual purposes: detecting theft attempts and verifying commodity identity when combined with RFID and barcode data, thereby achieving both reliability and precision.
3Loss of information
If RFID tag is attached to each weighing commodity to solve price uncertainty, then price information can be obtained, but the cost will be greatly increased
Solution Approach 1:
The patent uses barcode copies as an alternative to RFID tags for price information storage. Instead of attaching expensive RFID tags to every commodity, the system scans existing barcodes (which are already present on commodities) to retrieve price information, thereby maintaining price information accuracy while significantly reducing implementation costs.
Solution Approach 2:
The patent employs low-cost barcode scanning instead of expensive RFID tagging for price information acquisition. The barcode system uses inexpensive optical scanning technology that leverages existing commodity markings, providing a cost-effective solution for obtaining price information without requiring expensive RFID infrastructure.
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 and efficient commodity identification, reduces theft by verifying weights and prices, and enhances user experience with fast payment options, while maintaining the convenience of current shopping habits.
Implementation Method 1
a weight sensor configured for collecting weight information of a commodity
Implementation Method 2
The cart body is provided with an RFID tag for storing number information of the intelligent shopping cart
Implementation Method 3
The code-scanning device is configured to read barcode information of the commodity
Data Source
AI summary
An intelligent shopping cart, an intelligent shopping system and an implementation method thereof. The intelligent shopping cart includes a cart body; and the cart body includes a storage unit and a handle, and further includes an intelligent terminal device configured on the handle. The intelligent terminal device is provided with a touchscreen computer having a display function and/or an operation function. The cart body is provided with an RFID tag for storing number information of the intelligent shopping cart. The cart body is further provided with a device in a communication connection to the touchscreen computer, and the device at least includes one or a combination of a weight sensor, a monitoring device, a code-scanning device, a positioning device, and a voice broadcasting device.