Eyeglasses Wearable Device with Nose Pad Ocular Potential Sensors
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Solution Overview
Problem
Existing wearable devices struggle to efficiently monitor user attention and oversight during tasks, particularly in work environments, as they often cause discomfort and reduce efficiency due to electrode placement on the skin, and lack effective real-time feedback mechanisms.
Innovation Solution
An eyeglasses wearable device equipped with ocular potential sensors placed on the nose pads, which sense eye movements and blinking patterns to determine user attention and oversight, and adjust displayed information accordingly, using a system that includes a sensing signal acquisition module, characteristic determination module, display data output module, and oversight determination module to provide real-time feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electrodes are placed on the skin to sense eye movements, then sight-line sensing capability is achieved, but user discomfort increases
Solution Approach 1:
The patent uses the nose pad as an intermediary structure to position electrodes near the eye without direct skin contact. The electrodes are mounted on the nose pad surface, allowing them to sense ocular potential variations caused by eye movements while being separated from the user's skin by the pad material, thus reducing discomfort while maintaining sensing capability
Solution Approach 2:
The patent replaces direct skin-contact electrode placement with a non-contact or minimal-contact arrangement on the nose pad. This substitution changes the mechanical interaction between the electrode and the user's body, reducing the harmful effect of skin contact discomfort while preserving the electrical measurement function for sight-line detection
2Productivity
If real-time monitoring of user attention is implemented, then working efficiency improves, but device complexity increases
Solution Approach 1:
The eyeglasses device integrates multiple functions including display, ocular potential sensing, blink detection, and attention monitoring within a single wearable unit. The nose pad serves both as a comfort element and as the mounting location for sensing electrodes, while the control unit processes multiple types of data (blink timing, ocular potential variations) to determine both blink patterns and attention levels, reducing the need for separate monitoring devices
Solution Approach 2:
The device automatically monitors user attention and adjusts displayed information without requiring manual input or external intervention. The control unit continuously analyzes ocular potential variations and blink patterns, automatically determining attention levels and adjusting display content in real-time, thereby improving working efficiency while keeping the operation simple for the user
3Object-affected harmful factors
If electrodes are placed in nose pads to reduce discomfort, then user comfort improves, but measurement accuracy may deteriorate
Solution Approach 1:
The patent applies different properties to different parts of the nose pad structure. The electrode mounting area is designed with specific electrical properties to ensure good signal acquisition, while other parts of the nose pad maintain comfort properties for user wear. The control unit also applies different processing methods to different aspects of the signal (raw ocular potential variations versus derived blink patterns and attention levels) to optimize both accuracy and comfort
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
The device effectively monitors user attention and oversight without causing discomfort, improving working efficiency by adjusting displayed information in real-time based on user attention levels and sharing data with other users or managers, enhancing task completion and remote monitoring capabilities.
Implementation Method 1
Electro-oculography (EOG) is one of a number of electrical methods for sensing a sight-line. In EOG, the sight-line of the user of a wearable device is sensed by using the eye's property of the cornea being positively charged and the retina being negatively charged, by placing electrodes around the eyes and measuring variations in potential caused by eye movements.
Implementation Method 2
the eye's property of the cornea being positively charged and the retina being negatively charged, by placing electrodes around the eyes and measuring variations in potential caused by eye movements
Data Source
AI summary
According to one embodiment, an eyeglasses wearable device includes a sensing signal acquisition module configured to acquire sensing signals from potential sensors, a display configured to display display data, a display data output module configured to transmit first display data to the display, a characteristic determination module configured to determine at least timing of blinking of the user based on variations in the sensing signals when the first display data is displayed on the display, and an oversight determination module configured to determine whether the user has overlooked an important display position in the first display data by comparing the timing of blinking with an elapsed time position of the first display data.