Wearable Gesture Detection Illuminance Threshold Control
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Solution Overview
Problem
Wearable electronic devices face erroneous gesture detection due to interference from external light sources, such as sunlight or halogen lamps, which make it difficult to distinguish between infrared light from the user and the light source.
Innovation Solution
Incorporating an illuminance measurement section to determine if the measured illuminance exceeds a pre-set threshold, which disables the gesture detection section when high illuminance is detected, ensuring accurate gesture recognition by preventing false positives from external light sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the gesture detection section detects infrared light to recognize user gestures, then gesture recognition capability is improved, but erroneous detection occurs when external light sources (sunlight, halogen lamps) are present
Solution Approach 1:
An illuminance measurement section is introduced as an intermediary component to measure the intensity of external light. This mediator provides information about environmental lighting conditions, enabling the control section to make informed decisions about gesture detection reliability and disable detection when light interference is detected
Solution Approach 2:
The system implements a feedback mechanism where the illuminance measurement section continuously monitors external light conditions and feeds this information to the control section. Based on this feedback, the control section adjusts the operation of the gesture detection section, disabling it when illuminance exceeds a predetermined threshold to prevent erroneous detection
2Speed
If the gesture detection section operates continuously to detect user gestures, then detection responsiveness is improved, but false positives increase under high illuminance conditions
Solution Approach 1:
The system dynamically adjusts the operational state of the gesture detection section based on real-time illuminance measurements. Rather than operating continuously or remaining static, the detection section is enabled or disabled according to environmental lighting conditions, optimizing both responsiveness and reliability
Solution Approach 2:
The illuminance measurement section serves as a mediator that monitors environmental conditions and provides critical information to the control section, enabling intelligent decision-making about when to enable or disable gesture detection to balance responsiveness and accuracy
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 solution effectively reduces erroneous gesture detection by distinguishing between user-generated infrared signals and external light sources, enhancing the reliability of gesture recognition in wearable devices.
Implementation Method 1
an illuminance measurement section for measuring an illuminance of first light having a first wavelength band
Implementation Method 2
a gesture detection section for detecting second light having a second wavelength band
Data Source
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AI summary
Disclosed is a wearable electronic device, a gesture detection method therefor and a gesture detection program therefor, wherein second light having a second wavelength band is detected to thereby detect a gesture. In this process, the illuminance of first light having a first wavelength band including at least a band not overlapping the second wavelength band is measured, and, when a result of this measurement is equal to or greater than a threshold, the gesture detection is disabled. Therefore, the wearable electronic device, the gesture detection method therefor and the gesture detection program therefor make it possible to reduce an erroneous detection of a gesture.