Hand Gesture Sensor Bump Unit Amplification
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Solution Overview
Problem
Existing hand gesture recognition technologies face challenges in achieving high sensitivity and accuracy due to limitations in measuring physical changes in the human epidermis, particularly when integrated into wearable devices.
Innovation Solution
A sensor system comprising a strain unit and a bump unit, where the bump unit is positioned beside the strain unit in the measurement direction to amplify physical changes, enhancing sensitivity and accuracy by concentrating deformation and transmitting signals effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor is brought into direct contact with skin to capture electrical signals or sense epidermis movement, then gesture recognition capability is achieved, but measurement sensitivity and accuracy are insufficient
Solution Approach 1:
The patent introduces a bump unit positioned at a specific location relative to the strain unit, creating a three-dimensional structure that concentrates deformation. This dimensional addition allows the sensor to capture physical changes in the epidermis more effectively by creating a focal point for mechanical deformation, thereby improving measurement sensitivity and gesture recognition accuracy simultaneously
2Measurement precision
If only a strain unit is used to measure physical changes in epidermis, then device complexity is low, but measurement sensitivity is insufficient
Solution Approach 1:
The sensor is divided into two functional segments: a strain unit for measuring physical changes and a bump unit for concentrating and amplifying deformation. This segmentation allows each component to perform its specific function optimally, with the bump unit enhancing the strain unit's sensitivity without requiring a complete redesign of the entire sensor system
Solution Approach 2:
The bump unit acts as an intermediary element between the epidermis and the strain unit. It concentrates and transmits mechanical deformation from the epidermis to the strain unit, thereby amplifying the physical changes detected by the sensor and improving measurement sensitivity without directly contacting the skin
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 sensor system significantly improves hand gesture recognition sensitivity and accuracy, as demonstrated by experimental results showing increased resistance variation and nonlinear characteristics when the bump unit is properly positioned, leading to enhanced gesture recognition rates.
Implementation Method 1
at least one strain unit configured to measure a physical change in an epidermis of a human body
Implementation Method 2
at least one bump unit located in a measurement direction of the strain unit so as not to overlap the strain unit and configured to amplify the physical change
Data Source
AI summary
The described technology relates to a hand gesture recognition sensor. In one aspect, the hand gesture recognition sensor includes at least one strain unit configured to measure a physical change in an epidermis of a human body. The hand gesture recognition sensor also includes at least one bump unit located in a measurement direction of the at least one strain unit so as not to overlap the at least one strain unit, the at least one bump unit configured to amplify the physical change.