Battery Life Estimation for Digital Transaction Cards
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Solution Overview
Problem
Current digital transaction systems face challenges in securely managing multiple credit and debit cards on a single device, preventing fraudulent transactions, and providing real-time feedback on card usage, while also dealing with battery life estimation and limited functionality due to proprietary chips and complex electronic devices.
Innovation Solution
A Digital Transaction Card (DTC) system that includes a Data Assistance Device (DAD) and a Digital Transaction Processing Unit (DTPU), enabling the DTC to selectively assume different personalities for various transactions, with a remaining battery life estimation system to detect electrical events and calculate energy usage, and a secure record memory for token management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple credit and debit cards are stored on a single device, then card management efficiency is improved, but security risk increases due to potential fraudulent transactions
Solution Approach 1:
The patent segments the card management system into distinct functional modules: card storage, transaction monitoring, fraud detection, and user notification systems. Each module operates independently but coordinates through centralized control, allowing efficient multi-card management while maintaining security through distributed functionality and specialized processing for each card type
Solution Approach 2:
The system implements real-time feedback mechanisms where transaction data from multiple cards is continuously monitored, analyzed for fraudulent patterns, and immediately communicated to users through notifications. This closed-loop feedback system enables proactive fraud prevention while maintaining efficient card management through automated monitoring and user awareness
2Adaptability or versatility
If proprietary chips and complex electronic devices are used, then transaction functionality is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal card management system that can handle multiple types of cards (credit cards, debit cards, loyalty cards) through a single integrated device. The system uses standardized communication protocols and a unified interface that works across different card types, eliminating the need for separate specialized devices while maintaining full transaction functionality through multi-purpose processing capabilities
3Reliability
If real-time monitoring of card usage is implemented, then fraud prevention capability is improved, but energy consumption increases
Solution Approach 1:
The system implements periodic monitoring intervals where transaction data is collected and analyzed at scheduled intervals rather than continuously. The monitoring frequency dynamically adjusts based on risk levels - higher frequency for cards showing suspicious patterns and lower frequency for normal transactions - thereby maintaining effective fraud prevention while significantly reducing overall energy consumption compared to continuous monitoring
Data Source
AI summary
Digital transaction apparatus including a Data Assistance Device (DAD), including a user interface that is operable to at least select data, and a DAD transmitter, a Digital Transaction Card (DTC), including a Digital Transaction Processing Unit (DTPU), and a DTC receiver, wherein the DAD and DTC are operable to transfer data from the DAD to the DTC and when subsequently using the DTC to effect a digital transaction, the DTC operates in accordance with the data selected and transferred from the DAD to the DTC, wherein the digital transaction apparatus further includes a remaining battery life estimation system operable to detect an occurrence of at least one electrical event and to measure the duration of the at least one electrical event, each electrical event having an associated power usage amount, and, subsequent to detection of an occurrence of an at least one electrical event, the remaining battery life estimation system calculates the total energy usage using the associated power usage amount in respect of the at least one electrical event and the duration of the at least one electrical event.