Payment Device Two-Way Communication Architecture
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Solution Overview
Problem
Current payment processing systems between payment devices and cash registers operate in a one-way communication mode, limiting the functionality and user experience by preventing two-way data transmission, which restricts the ability to diversify payment device functions and provide transparent payment details to users.
Innovation Solution
Implementing a two-way communication method between payment devices and cash registers, allowing for the transmission of order information, payment codes, and payment results, enabling both devices to receive and transmit data, and display payment details to users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one-way communication mode is used between payment device and cash register, then device complexity is reduced, but functionality and user experience are limited
Solution Approach 1:
The patent inverts the traditional one-way communication architecture by enabling the cash register to actively transmit information to the payment device. This inversion allows the payment device to receive not only user input but also transaction details, payment results, and other feedback from the cash register, thereby diversifying functionality without proportionally increasing complexity.
2Loss of information
If one-way communication mode is used, then ease of operation is maintained, but information transparency to users is reduced
Solution Approach 1:
The patent implements a feedback mechanism where the cash register sends transaction information, order details, and payment results back to the payment device for display to the user. This feedback loop ensures information transparency by allowing users to view complete transaction details on the payment device screen while maintaining simple operation through the existing payment device interface.
3Adaptability or versatility
If two-way communication is implemented, then functional diversity is improved, but device complexity increases
Solution Approach 1:
The patent makes the payment device multi-functional by enabling it to not only send payment information to the cash register but also receive and display transaction details, payment results, and other information. This universality allows a single device to perform multiple functions (payment initiation, information display, result notification) without requiring separate dedicated devices, thereby improving functional diversity while managing complexity through consolidation.
Data Source
AI summary
A payment processing method is provided to be performed by a first device. The method includes obtaining order information and transmitting the order information to a second device for display, receiving a payment code transmitted by the second device, the payment code being generated by the second device according to a user payment identity after a payment confirmation instruction triggered by a user is received, obtaining a payment result by performing, in a payment account corresponding to the payment code, payment processing on the order information based on the payment code, and transmitting the payment result to the second device for display.