Portable ID Device with Electronic Paper and Wireless Modules
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Solution Overview
Problem
Traditional identification devices, whether paper-based or electronic, face issues with non-reusability, environmental impact, compatibility problems, and reliability concerns, especially when power is low or internet access is poor, and they lack sufficient security for identity verification.
Innovation Solution
A portable identification system utilizing electronic paper with a wireless communication module, timer module, and external operation devices for secure and convenient identification, allowing images to be displayed without electricity and updated as needed, incorporating RFID, NFC, or Bluetooth for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic paper is used to display identification information, then the device can maintain display without power and improve reliability, but the device complexity increases due to additional modules
Solution Approach 1:
The patent combines multiple functions into the portable identification device: electronic paper display module for power-independent display, wireless communication module for data transmission, timer module for scheduled updates, and housing for structural support. This integration allows the device to maintain display reliability without power while consolidating complexity into a single portable unit.
Solution Approach 2:
The electronic paper display serves multiple purposes: displaying identification information, maintaining display without power consumption, and enabling periodic updates through the timer module. The wireless communication module handles both receiving external display information and transmitting identification information, providing multi-functional capability that improves reliability without proportionally increasing complexity.
2Reliability
If wireless communication modules are added for secure communication, then security is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent uses encrypted barcodes as a simplified representation of complex security data. Instead of implementing complex cryptographic protocols directly in the device, the system generates encrypted barcode images that can be displayed on the electronic paper and scanned for verification. This copying approach maintains security while simplifying manufacturing.
Solution Approach 2:
The wireless communication module supports multiple communication protocols (RFID, NFC, Bluetooth) that can be selected based on security requirements. By parameterizing the communication method rather than hardcoding a single complex protocol, the device achieves high security when needed while remaining manufacturable with standard components.
3Ease of operation
If the device includes timer module for periodic display updates, then the identification process becomes more convenient, but the device complexity increases
Solution Approach 1:
The timer module enables the device to automatically update its display at predetermined times without requiring user intervention. The system receives external display information, stores it, and automatically displays it at scheduled times, making the identification process convenient while keeping the timer module simple and integrated into the existing hardware.
4Device complexity
If traditional paper tickets are used, then the device complexity is low, but the tickets cannot be reused and are not environmentally friendly
Solution Approach 1:
The electronic paper display allows the identification device to be updated with new information repeatedly. Instead of discarding the physical ticket after use, the system can recover and reuse the same device by updating the displayed information through wireless communication, enabling multiple uses and improving environmental sustainability.
5Adaptability or versatility
If mobile devices are used as electronic carriers, then reusability is improved, but compatibility issues and power dependency problems arise
Solution Approach 1:
The patent extracts the display function from power-dependent mobile devices and implements it in a standalone portable identification device with electronic paper. This separation allows the identification device to operate independently without relying on mobile device power, internet access, or specific applications, thereby improving operational reliability while maintaining reusability.
Data Source
AI summary
An identification system using electronic paper includes an external operation device and a portable identification device, the external operation device includes an external communication module for providing external display information; the portable identification device includes a wireless communication module, an electronic paper module, a timer module and a housing. The wireless communication module is configured to receive the external display information, and the electronic paper module includes a processing unit and a display unit. The processing unit is configured to drive the display unit according to the external display information so that the display unit displays an image including identification information and subsidiary information. The wireless communication module, the electronic paper module and the timer module are disposed in the housing so that the image is seen from the housing. The portable identification device, the identification system using electronic paper and the operation method thereof according to the instant disclosure increases the security and convenience of identification processes.