Mobile Terminal Offline Transaction Notification via Field Inductor
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Solution Overview
Problem
Users of non-contact smart cards, such as public transportation and bank cards, are not immediately informed of balance changes during transactions, leading to issues with erroneous or repeated swiping, and lack of real-time awareness of transaction details.
Innovation Solution
A mobile terminal with an offline trade notification function, equipped with a field inductor for detecting radio frequency signals, processes module for generating interruption events, and input/output module for informing users of transaction data variations, allowing timely notification of transaction details.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If non-contact smart cards are used for offline transactions, then transaction convenience is improved, but user awareness of transaction details deteriorates
Solution Approach 1:
The patent implements a feedback mechanism by notifying the user of offline transaction details through the mobile terminal. The system reads transaction data from the smart card, processes the information, and provides feedback to the user via display or other output interfaces, thereby resolving the information loss problem while maintaining transaction convenience
Solution Approach 2:
The mobile terminal acts as an intermediary between the smart card and the user. It reads transaction data from the smart card's secure element, processes the information, and presents it to the user in a comprehensible format, bridging the gap between the card's internal storage and user awareness
2Measurement precision
If smart card trade terminal records detailed information, then transaction data accuracy is improved, but real-time user notification deteriorates
Solution Approach 1:
The system performs preliminary action by reading and storing transaction data from the smart card immediately when the transaction occurs. The mobile terminal proactively retrieves the transaction information from the secure element before the user needs to check it, ensuring both data accuracy is captured and real-time notification capability is enabled
Solution Approach 2:
The system establishes a feedback loop where the mobile terminal continuously monitors the smart card for transaction data changes and immediately notifies the user. This feedback mechanism ensures that accurate transaction information recorded by the terminal is promptly communicated to the user without delay
3Adaptability or versatility
If mobile terminal reads trade data from smart card, then offline trade notification capability is improved, but device complexity deteriorates
Solution Approach 1:
The mobile terminal leverages its existing NFC capabilities and secure element infrastructure to perform multiple functions including contactless communication, secure data storage, and transaction notification. By making the device universal and multi-functional, the patent adds offline trade notification capability without significantly increasing overall device complexity
Solution Approach 2:
The mobile terminal utilizes its own built-in secure element and NFC hardware to read and process transaction data from the smart card. The device serves itself by using its existing cryptographic and communication infrastructure, avoiding the need for additional specialized components and thereby limiting the increase in device complexity
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 users to receive immediate and accurate information about transaction amounts and types, reducing the risk of repeated transactions and enhancing user experience by providing real-time balance updates.
Implementation Method 1
a field inductor for detecting surrounding radio frequency signals and for generating a control signal
Data Source
AI summary
The invention relates to a mobile terminal having an offline trade notification function and a notification method that is implemented using the mobile terminal. The mobile terminal having an offline trade notification function comprises: a storage module for storing an offline trade application described below; a wireless communication module having a field inductor that is used for detecting surrounding radio frequency signals and for generating a control signal; a processing module which generates an interruption event when it receives the control signal; an application module which can read trade data of the offline trade application according to the notification from the processing module, calculate trade data variation of the offline trade application, and inform an input/output module described below of the trade data variation; and the input/output module for informing the user of the event of data variation.