Low-Power Electronic Display With Segmented Human And Machine Readable Elements
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Solution Overview
Problem
Existing electronic displays face challenges in providing both human-readable and machine-readable information efficiently, especially in scenarios where power consumption is low and data transmission is intermittent, such as in retail, off-grid, and dynamic pricing applications.
Innovation Solution
A wireless electronic display device with a low-power-consumption ePaper or eInk display that uses bidirectional RF communication, incorporating a processor and motion sensor to maintain images without electrical power and transmit data intermittently, allowing for human-readable text and machine-readable graphical elements like QR codes, enabling precise identification and location confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional electronic displays are used to provide both human-readable and machine-readable information, then information completeness is improved, but power consumption increases
Solution Approach 1:
The display is divided into multiple independent display regions, each capable of showing different types of information (human-readable text, machine-readable codes, pricing information). This segmentation allows the system to activate only the necessary regions based on operational mode, reducing overall power consumption while maintaining information completeness when needed.
Solution Approach 2:
The electronic display employs periodic updates rather than continuous refresh, maintaining static images without power consumption. The display controller updates display content at specific intervals or events (price changes, promotional updates), allowing the display to hold information indefinitely without power while still providing complete information when updated.
2Loss of information
If continuous data transmission is implemented for real-time updates, then information freshness is improved, but power consumption and network usage increase
Solution Approach 1:
The system implements event-driven and periodic update mechanisms where data transmission occurs only when information changes (price updates, promotional changes) or at scheduled intervals. The display controller receives and processes update packets selectively, allowing the display to maintain fresh information without requiring continuous data transmission, thus reducing power consumption and network traffic.
3Adaptability or versatility
If multiple communication protocols are supported for versatility, then adaptability is improved, but device complexity increases
Solution Approach 1:
The display device incorporates a universal communication interface that can handle multiple data formats and protocols through a single integrated controller. The display controller is designed to receive data packets in various formats (price information, promotional content, product details) and process them uniformly, enabling the device to work with different communication protocols and data sources without requiring separate hardware for each protocol, thus maintaining versatility while controlling complexity.
Data Source
AI summary
Electronic displays devices can present electronically changeable displayed images including graphical and textual elements, for example, human and machine-readable elements. The devices can include a low-power-consumption display that uses little or no power until a portion of the display is changed. The electronic display devices can be wirelessly connected to computing devices such as portable computing devices (e.g., smartphones, smartwatches, tablets, laptops, etc.) and fixed gateway devices (e.g., wireless access points) by a wireless communications network. The devices can include a motion sensor and functionality for determining identity, proximity, and/or location of the device.