NFC Terminal Auto-Selecting POS-Matched Application
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Solution Overview
Problem
Existing NFC terminal transaction methods often result in poor user experience due to mismatched NFC applications and POS types, leading to manual selection and re-initiation of transactions.
Innovation Solution
A terminal transaction method that automatically selects and uses an NFC application matching the POS type, ensuring the use conditions are satisfied, thereby avoiding the need for manual selection and re-initiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a default card application is set in advance for NFC device, then transaction speed is improved, but user experience deteriorates when the default application does not match the POS type
Solution Approach 1:
The system performs preliminary actions by pre-fetching and caching multiple card applications and their metadata before the transaction occurs. When a POS terminal initiates a transaction, the NFC device can quickly retrieve the matching application from cache rather than requiring user selection, thus maintaining fast transaction speed while ensuring the correct application is used.
Solution Approach 2:
The system dynamically adapts the default card application selection based on the detected POS type. Instead of using a static default application, the NFC device automatically identifies the POS terminal type and selects the most appropriate card application in real-time, resolving the mismatch problem while maintaining rapid transaction processing.
2Reliability
If manual selection of card application is required when mismatch occurs, then transaction accuracy is improved, but transaction time increases due to re-initiation
Solution Approach 1:
The system implements a feedback mechanism where the NFC device detects the POS type, evaluates whether the default application matches, and automatically adjusts the application selection accordingly. This closed-loop feedback ensures transaction accuracy is maintained while eliminating the need for manual intervention and re-initiation, thus preventing time loss.
Solution Approach 2:
The NFC device performs self-service by automatically detecting POS type mismatches and selecting the appropriate card application without requiring user intervention. The system autonomously resolves the mismatch issue, ensuring transaction accuracy while maintaining continuous operation without time-consuming manual re-selection.
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
Improves user experience by ensuring seamless transactions without manual intervention and reducing transaction failures due to NFC application mismatches.
Implementation Method 1
an NFC technology is a short-range wireless connection technology based on radio frequency identification (RFID), and can implement near field communication between electronic devices by using a magnetic field induction
Data Source
AI summary
In this application, a terminal transaction method and a terminal are provided and used to resolve a problem existing in the prior art that an NFC application does not match a type of a POS, and there is relatively poor user experience. The method includes: establishing, by a terminal, a near field communication NFC radio frequency connection to a point of sale POS, and starting up a first transaction; and selecting, by the terminal, a first NFC application corresponding to the POS, and performing the first transaction when a use condition of the first NFC application is already satisfied.