Eyewear Reflective Coating for Low-Power Attitude Tracking
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Solution Overview
Problem
Existing methods for determining a person's head attitude using digital devices are energy inefficient, leading to rapid battery drain in battery-powered devices.
Innovation Solution
A method utilizing a digital device with a light sensor to detect light signals reflected from eyewear with different coatings at specific wavelengths, calculating yaw, pitch, and roll angles, and determining distance, to improve energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image processing algorithms are used to determine head attitude, then measurement precision is improved, but use of energy increases
Solution Approach 1:
The patent extracts the attitude measurement function from the main digital device processor to a separate, dedicated sensor module. This modular approach allows the main processor to remain in low-power states while the dedicated sensor continuously monitors head attitude using optimized algorithms, thereby maintaining measurement precision while reducing overall energy consumption.
Solution Approach 2:
The sensor module is designed to autonomously perform attitude determination without requiring continuous intervention from the main processor. It independently captures images, processes them using pre-loaded algorithms, and generates attitude data, enabling the system to maintain accurate tracking with minimal energy expenditure from the main computing unit.
2Productivity
If continuous attitude determination is performed, then productivity is improved, but use of energy increases
Solution Approach 1:
The system implements periodic attitude determination with variable intervals. The sensor module continuously monitors at a low level and only performs full image processing when changes exceed a threshold or at predetermined intervals. This allows the system to maintain productivity by detecting attitude changes promptly while conserving energy by avoiding unnecessary continuous high-power processing.
Solution Approach 2:
The attitude determination frequency is dynamically adjusted based on activity level and detected motion. During periods of high motion or user interaction, the system increases sampling rate to maintain productivity. During stable periods, it reduces processing frequency to minimize energy consumption, optimizing the balance between productivity and power usage in real-time.
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
Enhances energy efficiency in determining head attitude by reducing power consumption, allowing for continuous and accurate measurement of yaw, pitch, and roll angles with minimal battery drain.
Implementation Method 1
detecting a light signal with a digital device comprising a light sensor
Implementation Method 2
The light signal may be signal reflected from the eyewear when the eyewear is within a sensor range
Data Source
AI summary
An aspect of the disclosure relates to a method of determining an attitude of an eyewear. The method may include: detecting a light signal reflected from the eyewear with a digital device including a light sensor for a non-visible wavelength range; and calculating, using the light signal, an attitude of the eyewear. The attitude may be at least one of: a yaw angle, a pitch angle, a roll angle. A second aspect of the disclosure relates to an eyewear including at least a first lens. The first lens may include a first coating having reflection in the non-visible range of wavelengths. The first coating may further include a pattern with an orientation. A third aspect of the disclosure relates to a computer program product including instructions, which, when the program is executed by a digital device, causes the digital device to carry out the method.