Smart Glasses Head-Turn Interaction for Line-of-Sight Preservation
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Solution Overview
Problem
Smart glasses without SLAM technology face challenges in displaying virtual digital content without blocking the user's line of sight, particularly in scenarios like driving, and have limited interaction methods that require hand-based operations, affecting user experience and safety.
Innovation Solution
The smart glasses employ a method where a prompt identifier is displayed at the edge of the display area, and users can interact by turning their head to view detailed content or perform screen flicking/page flipping operations, allowing hands-free control and wake-up functionality based on measured angles, thereby minimizing sight obstruction and enhancing usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If detailed content is directly displayed in the display area after receiving a message, then the user can view complete information, but the line of sight for observing the real world is blocked
Solution Approach 1:
The message display is segmented into two parts: a prompt identifier (icon) displayed at the edge of the display area, and detailed content displayed only when the user performs a specific head-turning action. This segmentation allows the system to provide information without continuously blocking the user's line of sight.
Solution Approach 2:
Instead of displaying the complete message immediately, the system displays only a partial view (prompt identifier) by default, and shows the full detailed content only when the user performs the head-turning action within the specified time period. This partial display approach reduces line of sight blocking while still providing access to complete information when needed.
2Use of energy by moving object
If the smart glasses remain in sleep mode to conserve battery, then power consumption is reduced, but the user experience is degraded due to inconvenient wake-up operations
Solution Approach 1:
The smart glasses automatically wake up when they receive a message notification, eliminating the need for manual wake-up operations. The system serves itself by detecting the incoming message and activating the display and interaction modes automatically, thereby maintaining ease of operation while preserving battery life through automatic sleep-wake cycles.
3Measurement precision
If hand-based operations are required to interact with smart glasses, then control precision is improved, but user safety is compromised in scenarios like driving
Solution Approach 1:
The patent replaces manual mechanical operations with head movement-based control. The inertial measurement unit detects head orientation changes, and these movements are mapped to screen flicking and page flipping operations. This substitution allows users to interact with the smart glasses using natural head movements rather than requiring manual operations, thereby maintaining control precision while improving safety in scenarios like driving.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables users to interact with smart glasses without using two hands, improving user experience and safety by allowing seamless viewing of information without obstructing the line of sight and simplifying the wake-up process, thus reducing the risk of accidents.
Implementation Method 1
an inertial measurement unit configured to measure a specified angle, along a specified direction, between an initial location and a current location of the smart glasses
Data Source
AI summary
Smart glasses, and an interaction method and an interaction apparatus thereof are provided. The interaction method includes: receiving a message sent by a communications device; displaying a prompt identifier of the message at an edge of a display area of the smart glasses; and performing, if the head of the user wearing the smart glasses rotates in the first direction, a screen sliding operation or page turning operation to display the detailed content of the message in the display area.