HMD Sensor Power Management for AR Fidelity
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Solution Overview
Problem
Augmented reality head-mounted display devices face significant power consumption issues due to continuous operation of sensors, which can reduce battery life and degrade the user experience, while also consuming network resources during data transmission.
Innovation Solution
A resource management system that includes a head-mounted display device and a computing device with a resource management program that adjusts sensor power modes based on user-related information, such as gaze, location, and movement, to reduce power consumption without degrading the augmented reality experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors operate continuously at default power mode to maintain high sensor fidelity, then augmented reality experience quality is improved, but power consumption increases and battery life decreases
Solution Approach 1:
The sensor power mode is dynamically adjusted based on detected target information. When target information is detected, the system transitions to a first power mode with reduced sensor fidelity; when no target information is detected, the system uses a second power mode with higher sensor fidelity. This dynamic adaptation resolves the contradiction by making power consumption flexible rather than fixed.
Solution Approach 2:
The system changes operational parameters (power mode, sensor fidelity level) based on the presence or absence of target information. By switching between different power modes with different fidelity levels, the system optimizes the balance between power consumption and experience quality in real-time.
2Reliability
If sensors operate continuously to maintain high sensor fidelity, then augmented reality experience quality is improved, but battery life is reduced
Solution Approach 1:
The system dynamically adjusts sensor operation based on target information detection. When targets are detected, the system reduces sensor fidelity to extend battery life; when no targets are present, the system maintains higher fidelity. This extends battery life without permanently sacrificing experience quality.
Solution Approach 2:
The system periodically monitors target information and adjusts sensor power modes accordingly, creating a rhythm of high and low fidelity operation. This periodic adaptation allows the battery to last longer while maintaining quality when needed.
3Use of energy by moving object
If sensor power is reduced to extend battery life, then power consumption is decreased, but augmented reality experience quality is degraded
Solution Approach 1:
The system dynamically switches between power modes based on target detection. When targets are present, it uses reduced fidelity mode to save power; when absent, it uses high fidelity mode for quality. This dynamic switching allows the system to optimize both power consumption and quality depending on context.
Solution Approach 2:
The system changes the fidelity parameter of sensor operation based on target information. By adjusting this parameter dynamically, the system can reduce power consumption when quality is less critical and maintain quality when targets are detected, resolving the trade-off between power and quality.
4Productivity
If data from sensors is transmitted continuously over network, then real-time augmented reality functionality is improved, but network resource consumption and power usage increase
Solution Approach 1:
The system dynamically adjusts data transmission based on target information detection. When targets are detected, it reduces the frequency or amount of data transmitted over the network; when no targets are present, it maintains continuous transmission for real-time functionality. This resolves the contradiction by making network usage adaptive.
Data Source
AI summary
A system and related methods for a resource management in a head-mounted display device are provided. In one example, the head-mounted display device includes a plurality of sensors and a display system for presenting holographic objects. A resource management program is configured to operate a selected sensor in a default power mode to achieve a selected fidelity. The program receives user-related information from one or more of the sensors, and determines whether target information is detected. Where target information is detected, the program adjusts the selected sensor to operate in a reduced power mode that uses less power than the default power mode.