Capacitive Touch Button Control for Reliable Gloved Operation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Designing user interfaces for body-wearable devices, such as harnesses and vests, that can accommodate both gloved and non-gloved operations in public safety environments is challenging due to issues with tactile feedback and visibility, particularly in environments like fire rescue and first responder scenarios.
Innovation Solution
A touch-sensitive user interface system with a single activation button that determines operation mode based on capacitance measurements, adjusting sensitivity levels for secondary control buttons and providing haptic feedback to enhance gloved-mode operation, allowing for increased sensitivity and reduced false triggering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If touch sensitivity is increased to enable gloved operation, then ease of operation is improved, but false triggering increases
Solution Approach 1:
The system dynamically adjusts touch sensitivity levels based on detected operating conditions. A controller monitors touch inputs and automatically modifies sensitivity thresholds to distinguish between intentional gloved touches and accidental contacts, resolving the contradiction between ease of gloved operation and false triggering prevention
Solution Approach 2:
The patent changes the sensitivity parameter of the touch sensor based on operational mode. By detecting whether a glove is present (through capacitance measurement or touch pattern analysis), the system adjusts the sensitivity threshold to optimize both gloved and non-gloved operation while maintaining reliability
2Adaptability or versatility
If multiple control buttons are provided for different functions, then adaptability is improved, but device complexity increases
Solution Approach 1:
A single touch-sensitive button performs multiple control functions by detecting different touch patterns, durations, or sequences. The controller interprets various interaction modes (single press, long press, double press) to execute different commands, providing adaptability without adding physical buttons
Solution Approach 2:
The functional output of the single button dynamically changes based on the detected touch pattern. The system adapts its response to different user inputs, enabling multiple control functions from a single physical element while maintaining interface simplicity
3Ease of operation
If the user interface is made compact for body-wearable application, then ease of operation is improved, but tactile feedback quality deteriorates
Solution Approach 1:
The system incorporates a vibration motor or piezoelectric actuator that generates haptic feedback through mechanical vibration. This provides tactile confirmation of button presses and operational states, compensating for the reduced tactile feedback inherent in compact wearable designs
Solution Approach 2:
The system implements haptic feedback mechanisms that provide tactile response to user inputs. The vibration or tactile sensation confirms successful button activation, maintaining reliable operation feedback despite the compact form factor required for body-wearable applications
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 system enables reliable and unobtrusive remote control of electronic devices like radios in both gloved and non-gloved modes, maintaining functional control without increasing the interface size and minimizing false triggers through adaptive sensitivity and haptic feedback.
Implementation Method 1
A touch-sensitive user interface system with a single activation button that determines operation mode based on capacitance measurements
Data Source
AI summary
A user interface apparatus and method are provided for gloved and non-gloved touch sensitive button actuation. A user interface (100) embodied as a body wearable harness (104) provides a touch button control system having an activation button (120) and functional touch sensitive control buttons (108, 110, 140). The activation button (120) has a capacitive touch element (130) associated therewith that determines gloved or non-gloved operation based on a capacitive measurement taken in response to a finger input to the button. A plurality of control buttons (108, 110, and 140) are automatically assigned increased sensitivity levels in response to detected gloved mode operation in accordance with the measurement. The increased sensitivity levels allow various radio functions to be accessed by a gloved finger input during gloved mode operation with increased reliability. Additional control button identification can be added through the addition of vibrational alerts. Display and screen type control buttons can further be combined into larger and fewer buttons for ease of gloved landing.