RFID Vending Kit for Cashless Inventory-Based Product Access
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Solution Overview
Problem
Existing vending machines lack the ability to efficiently convert existing containers into 'smart' vending machines that can handle various product sizes and types without requiring specialized dispensary modules or mechanisms, and they struggle with automated inventory tracking and cashless payment processing.
Innovation Solution
A vending kit that includes a locking mechanism, door sensor, display, payment collection module, radio frequency identification (RFID) reader, and processor, which can be installed on or within existing containers to transform them into vending machines, enabling cashless transactions and automated inventory management through RFID tags and wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing vending machines use specialized dispensary modules for different product types, then product variety can be accommodated, but device complexity and cost increase significantly
Solution Approach 1:
The patent implements a universal locking mechanism that can secure multiple types of containers (cold storage, hot storage, ambient temperature) using a single interface. The system uses a standardized door locking approach that works across different container types, eliminating the need for specialized dispensary modules for each product category. The RFID-based inventory system also provides universal tracking capability across all container types.
2Extent of automation
If traditional vending machines are used, then basic vending function is provided, but automated inventory tracking and cashless payment capabilities are lacking
Solution Approach 1:
The system implements self-service inventory tracking using RFID tags attached to products and readers positioned near the locking mechanism. When the door is locked or unlocked, the system automatically reads the RFID tags to update inventory levels without requiring manual counting or specialized dispensary sensors. The cashless payment is integrated into the locking control, where authentication automatically triggers payment processing.
3Adaptability or versatility
If multiple specialized modules are installed for different vending functions, then functionality is enhanced, but installation complexity and maintenance difficulty increase
Solution Approach 1:
The patent combines multiple functions into a single integrated locking mechanism assembly. The locking mechanism housing contains the RFID reader, the door sensor is integrated into the locking assembly, and the payment authentication is handled through the same interface. This unified approach allows the entire system to be installed as one module rather than multiple separate components, significantly reducing installation and maintenance complexity while maintaining cold storage, hot storage, and ambient temperature vending capabilities.
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
Enables the vending of various products from a single transaction without specialized modules, provides accurate inventory tracking, and facilitates cashless payments, allowing for the conversion of existing containers into functional vending machines.
Implementation Method 1
a radio frequency identification reader arranged within the housing and reading signals received from radio frequency identification tags via the radio antenna
Data Source
AI summary
One variation of a method for controlling access to products from a vending machine includes: locking a door of the vending machine; recording an initial inventory of products arranged within the vending machine based on signals received by a radio antenna arranged within the vending machine and read by a radio frequency identification reader; initiating a transaction in response to receiving a cashless payment mechanism from a patron; unlocking the door in response to authentication of the cashless payment mechanism; in response to closure of the door, recording a final inventory of products within the vending machine based on signals received by the radio antenna and read by the radio frequency identification reader; and initiating a payment with the cashless payment mechanism for a difference between the initial inventory and the final inventory to complete the transaction.