Electronic Paper Display with Power-Threshold Recovery
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Solution Overview
Problem
Electronic paper display apparatuses used in wearable and portable devices are prone to being lost, and existing solutions do not effectively provide a means to easily recover these devices while ensuring security and displaying essential information.
Innovation Solution
An electronic paper display apparatus comprising an electronic paper display unit, a control unit with a power-level detection circuit, a storage unit for identification/alert information, and a wireless communication module that transmits satellite positioning signals when the power level is within a specific threshold, ensuring that identification and positioning information are displayed or transmitted to aid in recovery, while an authentication unit secures the information from unauthorized changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic paper display apparatus displays identification and satellite positioning information continuously, then the ease of recovery is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic power management by adjusting the display behavior based on real-time power level detection. When power levels are sufficient, the system displays information continuously to maximize recovery ease. When power becomes low, the system automatically transitions to power-saving mode, reducing display updates and transmissions to conserve energy for critical functions like emergency alerts.
Solution Approach 2:
The system changes operational parameters (display update frequency, transmission intensity) based on power level thresholds. By monitoring power consumption in real-time and adjusting display parameters dynamically, the apparatus balances the contradiction between continuous information display for recovery and power conservation.
2Ease of operation
If the electronic paper display apparatus transmits satellite positioning signals frequently, then the ease of recovery is improved, but the power consumption increases
Solution Approach 1:
The transmission frequency of satellite positioning signals is dynamically adjusted based on power levels. The system transmits location information frequently when power is abundant to enhance recoverability, but automatically reduces transmission intensity when power becomes critical, ensuring energy is reserved for essential alert functions.
Solution Approach 2:
The system implements periodic transmission at variable intervals based on power availability. When power levels are high, transmissions occur at shorter intervals for better tracking. When power decreases, the periodic action spacing increases, reducing energy consumption while maintaining the ability to transmit critical location data when needed.
3Reliability
If the electronic paper display apparatus uses authentication to prevent unauthorized changes, then the security is improved, but the device complexity increases
Solution Approach 1:
The authentication mechanism is pre-configured in the control unit before the apparatus is lost or compromised. The system automatically activates authentication protocols when power levels trigger emergency mode, verifying user identity before allowing any information display or transmission. This preliminary setup adds security without requiring complex real-time authentication hardware.
Solution Approach 2:
The control unit acts as an intermediary between the power-level detection circuit, storage unit, and electronic paper display unit. It mediates authentication requests by verifying credentials against stored data before allowing information to be displayed or transmitted, adding a security layer without directly increasing the complexity of individual components.
Data Source
AI summary
An electronic paper display apparatus comprises an electronic paper display unit, a control unit electrically connected to the electronic paper display unit and including a power-level detection circuit, a storage unit at least storing an identification/alert information and electrically connected to the control unit, a wireless communication module and a power unit. The wireless communication module is electrically connected to the control unit and includes a satellite positioning receiving unit, which receives a current satellite positioning signal of the electronic paper display apparatus. The power unit is at least electrically connected to the power-level detection circuit of the control unit. When a power of the power unit is greater than or equal to a first power threshold and less than or equal to a second power threshold, the control unit loads the identification/alert information and a satellite positioning information in the storage unit into the electronic paper display unit.