Wearable Computing Device Drowsiness Detection and Contextual Feedback

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Solution Overview

Problem

Current wearable computing devices lack the ability to effectively detect user drowsiness and provide appropriate feedback to prevent drowsiness or promote sleep, particularly in situations where drowsiness is unsafe, such as while driving, and fail to adapt to different contexts.

Innovation Solution

A wearable computing device equipped with a drowsiness detection unit that uses various sensors to detect drowsiness and a controller that determines the appropriate mode (drowsiness prevention or sleep promotion) based on the user's situation, providing feedback through audio, visual, or brainwave outputs, and adjusting lighting conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the wearable computing device provides drowsiness detection and feedback functions, then user safety and sleep quality are improved, but device complexity increases

Engineering Contradiction:
Improveuser safetyVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The wearable computing device integrates multiple functions including drowsiness detection through sensors (eye blinking, eye closing time, pupil radius), brainwave monitoring, and contextual awareness (GPS location, camera-based driving detection). The controller determines whether to provide drowsiness prevention or sleep promotion feedback based on the detected context, making the device adaptable to different situations without requiring separate devices for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If the device provides differentiated feedback based on situation detection, then adaptability is improved, but measurement precision requirements increase

Engineering Contradiction:
ImproveadaptabilityVSAvoidmeasurement precision
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The controller acts as an intermediary that integrates data from multiple sensors (eye tracking sensors, brainwave sensors, GPS, camera) and environmental context to determine the user's situation. It processes this combined information to distinguish between contexts requiring drowsiness prevention (e.g., driving detected by camera or GPS) and contexts allowing sleep promotion (e.g., home location at night), thereby reducing the precision burden on individual sensors while achieving accurate contextual awareness.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9492630B2Wearable computing device and user interface method
Publication Date: 2016.11.15 LG ELECTRONICS INC
  • US9492630B2 patent drawing
  • US9492630B2 patent drawing
  • US9492630B2 patent drawing

AI summary

There are disclosed a wearable computing device and a method for a user interface. The wearable computing device includes a drowsiness detection unit configured to detect a user's drowsiness; a controller configured to determine whether a current situation corresponds to a first mode not allowing the user's drowsiness or a second mode allowing the user's drowsiness when the user's drowsiness is detected; and a feedback output unit configured to provide the user with at least one feedback comprising a message of the first mode or the second mode according to the mode determined by the controller, wherein the message of the first mode is to fight off the drowsiness and wherein the message of the second mode is to help the user's sleep.