Mounting hook frame
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Solution Overview
Problem
Existing unmanned supermarket systems face challenges in accurately determining and recording goods selected, put back, or taken from the shelves, due to high data processing costs and large errors in recognition, especially when users manipulate goods to deceive the camera or consume edible items before leaving.
Innovation Solution
A shelf for hanging goods equipped with a weight sensing device that monitors real-time weight changes, allowing the system to infer the type and quantity of goods taken or put back based on weight changes across multiple suspension brackets, connected to a data processing device that tracks user interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If camera technology is used to determine goods purchased by users, then the system can identify goods visually, but data processing costs increase and recognition accuracy decreases due to user manipulation
Solution Approach 1:
The patent replaces the optical/camera-based detection system with a mechanical weight sensing system. Weight sensors mounted on the shelf directly measure the physical weight of goods, providing accurate detection without requiring complex image processing. This substitution eliminates the problems of camera fraud and high data processing costs while maintaining accurate goods tracking.
2Reliability
If RFID readers are installed at entrance/exit to track goods, then the system can sense goods passage, but the cost of RFID tags increases the price of goods and the system cannot detect goods consumed inside the store
Solution Approach 1:
The patent extracts the detection function from the exit-only RFID system and distributes weight sensors throughout the shelf structure. This allows detection to occur at the point of goods removal from the shelf, enabling tracking of goods taken, put back, or consumed inside the store without requiring expensive RFID tags on every product.
Solution Approach 2:
The weight sensing system automatically detects and records all goods interactions (taking, returning, consuming) without requiring active RFID tags or complex reader systems. The sensors continuously monitor weight changes and the system self-records all transactions, eliminating the need for expensive RFID infrastructure while improving reliability.
3Measurement precision
If traditional shelf structures are used without integration, then the shelf is simple to manufacture, but the shelf cannot accurately identify weight changes or provide real-time monitoring
Solution Approach 1:
The patent merges the weight sensing function directly into the shelf structure by mounting sensors on the shelf support and integrating them with the rack system. This integration allows the shelf to simultaneously provide its primary storage function and accurate weight monitoring, enabling real-time detection of goods removal, return, or consumption without requiring a separate complex monitoring system.
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 achieves accurate and efficient tracking of goods, reducing errors and operational risks, while providing real-time monitoring and user identification, enabling automatic settlement and improving user experience.
Implementation Method 1
a weight sensing device above the mounting bracket
Data Source
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AI summary
A mounting hook frame, comprising supports (1) and hook plates (2) detachably installed on the supports (1). A hook plate (2) comprises: an installation support (25), a weight-sensing device (26) provided on the installation support (25), a mounting hook support base (27) provided on the weight-sensing device (26), and a mounting hook (28). One end of the mounting hook can be detachably installed on the mounting hook support base (27). When used with data processing equipment (4), the present invention can determine what type of product has been removed or returned on the basis of weight changes of all of the mounting hooks (28) of the frame by means of real-time detection of weight changes of each mounting hook (28).