AR Headset Sensor Pausing via Gaze Detection
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Solution Overview
Problem
Current augmented reality systems do not effectively optimize power consumption in head-wearable devices by pausing operations when the user's eyes are not focused on the display, leading to unnecessary sensor activity and battery drain.
Innovation Solution
Implementing a method to monitor user facial or eye movement and pause the operation of sensors in head-wearable apparatus when the user's gaze is directed away from the display, thereby conserving power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors continue operating continuously in head-wearable devices, then measurement precision and responsiveness are maintained, but power consumption increases and battery life decreases
Solution Approach 1:
The system implements periodic sampling of sensor data at predetermined time intervals, switching between active sensing and low-power states. The processor periodically determines whether the user is viewing the display based on sensor inputs, and pauses sensor operations during intervals when viewing is not detected, thereby reducing power consumption while maintaining adequate measurement precision through strategic sampling
Solution Approach 2:
The system dynamically adjusts sensor operation states based on real-time user behavior. When the user is actively viewing the display, sensors operate at full capacity for precise tracking. When viewing ceases, the system transitions to a paused state with reduced power consumption. This dynamic state adjustment resolves the contradiction by adapting measurement precision to actual operational needs
2Use of energy by moving object
If sensors are paused when user gaze is away from display, then power consumption is reduced, but responsiveness and measurement precision may deteriorate
Solution Approach 1:
The system performs preliminary determination of user viewing state before pausing sensor operations. By analyzing sensor inputs and determining that the user is not viewing the display in advance, the system can confidently transition to a low-power state without risking missed detection of viewing events, thereby maintaining reliability while reducing power consumption
Solution Approach 2:
The system continuously monitors sensor inputs and provides feedback to the processor, which adjusts sensor operation accordingly. When sensors detect that the user is viewing the display, this feedback triggers resumption of full sensor operation. This closed-loop feedback mechanism ensures that the system responds reliably to user actions while optimizing power consumption during non-viewing periods
Data Source
AI summary
Systems and methods herein describe pausing operation of an augmented reality device based on user facial movement by monitoring user eye movement of a user of a head-wearable apparatus, determining that the user eye movement is directionally facing away from a display device coupled to the head-wearable apparatus, based on the determination, pausing operation of one or more sensors of the head-wearable apparatus.