Smart Transaction Card Dynamic Code Generation
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Solution Overview
Problem
Existing offline payment methods are insecure and inefficient, particularly when a terminal device like a mobile phone or tablet is not available, as they rely on card swiping and require frequent recharging, leading to security risks and low payment efficiency.
Innovation Solution
A transaction card with embedded components such as a power supply, graphic code generation circuit, and display device, which generates and displays a graphic transaction code based on user account information, enabling secure and efficient payments through near-field communication, even without a network connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If offline payment is made by swiping a bank card, then payment can be completed without network connection, but transaction account information is easily intercepted resulting in security loss
Solution Approach 1:
The patent applies dynamics by making the transaction code changeable and time-limited. The code displayed on the card is dynamically generated and automatically updates after a short validity period, preventing static information from being intercepted and reused. This transforms the static bank card information into a dynamic, evolving security element.
Solution Approach 2:
The patent changes the parameter of the transaction code from static to dynamic by introducing time-based validity and automatic updates. The code's content and validity period are changed periodically, making intercepted information obsolete quickly. This parameter transformation from fixed to variable enhances security against interception attacks.
2Productivity
If a traditional payment card with small remaining sum is used, then payment can continue, but user must frequently go to bank outlet to recharge wasting time
Solution Approach 1:
The patent implements self-service by enabling automatic top-up functionality. When the card balance is low, the system automatically recharges the account without requiring user intervention to visit bank outlets. This self-service mechanism eliminates the time loss associated with manual recharging and maintains continuous payment capability.
Solution Approach 2:
The patent applies preliminary action by pre-configuring automatic top-up rules and thresholds. Before the card balance becomes critically low, the system has already prepared the automatic recharging mechanism, so when needed, the top-up occurs immediately without requiring user action. This preliminary setup prevents payment interruptions and saves time.
3Ease of operation
If a terminal device like mobile phone or tablet is not carried, then portability is improved, but ability to perform secure transactions is reduced
Solution Approach 1:
The patent applies universality by making the smart card a multi-functional device that combines payment, authentication, and communication capabilities in a single portable form factor. The card can perform transactions independently without requiring a separate terminal device, thus maintaining portability while ensuring transaction reliability through integrated functionality.
Solution Approach 2:
The patent merges multiple functions (payment processing, code generation, display, communication) into a single smart card device. By combining these previously separate components into one unified portable card, the system maintains ease of operation while ensuring transaction capability is not compromised, as all necessary functions are integrated into the card itself.
Data Source
AI summary
Disclosed are a transaction card and an information displaying method. The transaction card includes a card body, a power supply, a graphic code generation circuit, and a display device. The power supply, the graphic code generation circuit, and the display device are embedded within the card body. The power supply is connected to the graphic code generation circuit and the display device. The graphic code generation circuit is configured to generate a graphic transaction code based on transaction account information of a user. The display device is configured to display the graphic transaction code.