Vending Machine Control System Payment Verification
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Solution Overview
Problem
Existing vending machine systems do not verify a user's payment capability before allowing product retrieval, leading to potential unauthorized access and inconvenience.
Innovation Solution
A vending machine control system that includes detection units to identify users attempting to open the door, acquisition units to gather settlement information, and determination units to assess payment capability, ensuring only capable users can access and retrieve products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vending machine transmits a radio signal to a mobile terminal and pays out the product upon receiving a connection request signal, then the user convenience is improved, but the risk of unauthorized access increases because the system does not verify payment capability
Solution Approach 1:
The system performs payment capability verification in advance before allowing product retrieval. The determination unit checks whether the user has sufficient balance or payment capability before the door is unlocked, ensuring that only authorized users can access the product, thus resolving the contradiction between convenience and security
Solution Approach 2:
The control device acts as an intermediary between the vending machine and the user's mobile terminal. It receives connection request signals, verifies payment capability through settlement information, and then controls the door locking mechanism. This intermediary function enables both convenient access for authorized users and prevention of unauthorized access
2Ease of operation
If the vending machine unlocks the door upon receiving a connection request signal, then the ease of operation is improved, but the loss of substance increases when users without payment capability pick up products
Solution Approach 1:
The system verifies payment capability before allowing the door to be unlocked and before product retrieval is permitted. The determination unit confirms that the user has sufficient balance or payment capability in advance, preventing product loss from unauthorized users while maintaining ease of operation for legitimate users
Solution Approach 2:
The system implements a feedback mechanism where the control device receives settlement information from the mobile terminal, verifies payment capability, and then provides appropriate feedback by either unlocking the door for authorized users or maintaining the locked state for unauthorized users. This feedback loop prevents product loss while ensuring convenient access for paying users
Data Source
AI summary
When a vending machine control system S detects a user who is about to open a door 13 of a vending machine 1 while the door 13 is locked, the vending machine control system S determines whether the detected user has a payment capability on the basis of information for settlement of the detected user. And then, the vending machine control system S controls to unlock the door 13 of the vending machine 1 in a case that it is determined that the user has the payment capability.