Head-Worn Local Voice Recognition for Hands-Free PPE Control
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Solution Overview
Problem
First responders face challenges in operating electronics while wearing personal protective equipment due to difficulty in finding and pressing small buttons and the limitations of remote/cloud-based voice recognition in emergency environments.
Innovation Solution
A head-worn device with local voice recognition capabilities, including a microphone, processing circuitry, and mechanical barriers to enhance audio detection, allows for voice-activated control of electronics without external processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If first responders wear full face respirator and PPE, then safety is improved, but ease of operation deteriorates due to difficulty in finding and pressing small buttons
Solution Approach 1:
The patent replaces mechanical button operation with acoustic field interaction. The microcontroller detects voice commands through acoustic signals captured by the microphone, eliminating the need for physical button pressing while maintaining operational capability. This substitution resolves the contradiction by maintaining safety through PPE while enabling operation through voice control.
Solution Approach 2:
The patent introduces voice recognition as an intermediary between the first responder and the electronic device. Instead of directly manipulating buttons, the user speaks commands which are then translated into device actions through the voice recognition system. This intermediary layer resolves the operational difficulty while preserving safety through PPE wear.
2Adaptability or versatility
If first responders carry equipment with manual operation, then functionality is maintained, but ease of operation deteriorates due to no free hand
Solution Approach 1:
The patent replaces manual mechanical operation with acoustic control. The microcontroller and voice recognition system enable the device to be controlled through voice commands alone, eliminating the need for hand manipulation of buttons or switches. This allows first responders to operate equipment while wearing PPE without requiring free hands.
Solution Approach 2:
The device performs self-service through automated voice recognition processing. The microcontroller locally processes voice commands and executes appropriate actions without requiring manual intervention. This self-service capability maintains full functionality while eliminating the need for manual operation, allowing hands to remain free.
3Extent of automation
If cloud-based voice recognition is used, then processing capability is improved, but reliability deteriorates due to connectivity constraints and time constraints
Solution Approach 1:
The patent extracts the voice recognition processing capability from the cloud and places it locally within the device. The microcontroller performs voice command detection and processing independently, eliminating dependence on external cloud servers. This extraction resolves the reliability issue by ensuring operation can continue even without cloud connectivity, while maintaining automated processing capability.
Solution Approach 2:
The patent implements preliminary local processing of voice commands before any external communication is needed. The microcontroller continuously monitors for voice commands and processes them immediately, ensuring that critical operations can be executed without waiting for cloud response. This preliminary action ensures reliability during time-constrained emergency situations.
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
Enables hands-free operation of electronic devices and improved safety by processing voice commands locally, enhancing user experience and functionality in emergency situations.
Implementation Method 1
The head worn device includes at least one microphone and processing circuitry in communication with the at least one microphone configured to receive an audio signal detected by the at least one microphone
Data Source
AI summary
A head worn device configured to be worn by a user is provided. The head worn device includes at least one microphone and processing circuitry configured to receive an audio signal detected by the at least one microphone, wherein the audio signal represents the user's speech. The processing circuitry is configured to evaluate the received audio signal and determine at least one intent based on the received audio signal. The evaluating and determining are performed by the processing circuitry. The processing circuitry is configured to perform at least one action based on the determined intent.