Audio-Based Access Control with Voice Command Authentication
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Solution Overview
Problem
Current access control systems require active physical interaction, such as swiping or tapping a credential, which can be inconvenient and may not suit all user scenarios.
Innovation Solution
An audio-based access control system that authenticates users based on voice data, allowing users to unlock doors or perform actions by enunciating commands, leveraging microphones and servers for voice recognition and authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If voice-based authentication is implemented, then ease of operation is improved, but device complexity increases due to audio detection systems and voice processing requirements
Solution Approach 1:
The patent replaces the mechanical interaction system (swiping, tapping, or holding physical credentials against the reader) with an acoustic interaction system (voice commands captured by microphones). This substitution eliminates the need for physical contact with the access control device while maintaining authentication functionality, directly resolving the contradiction between ease of operation and device complexity by trading mechanical simplicity for acoustic intelligence.
Solution Approach 2:
The patent introduces an audio detection system with microphones and voice processing capabilities as an intermediary between the user and the access control decision-making process. This intermediary captures voice commands, processes them through authentication algorithms, and translates them into access control actions, thereby enabling hands-free operation while managing the complexity through a dedicated intermediate layer.
2Device complexity
If voice commands are processed remotely via server, then device complexity is reduced, but loss of time increases due to network communication delays
Solution Approach 1:
The patent implements preliminary action by pre-processing and authenticating voice commands remotely via server before the actual access control decision is needed. The server validates voiceprints, recognizes commands, and prepares authentication results in advance, so that when the voice command is received at the access control device, the processing is already complete or near-complete, minimizing the perceived delay for the user.
Solution Approach 2:
The patent segments the voice authentication process into distinct phases: voice capture at the device, voiceprint extraction and command recognition processed remotely via server, and final access control decision executed locally. This segmentation allows complex processing to occur remotely while maintaining responsiveness through parallel processing and efficient data exchange between segments.
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 access control, enhancing convenience and flexibility by allowing voice-activated authentication, reducing the need for physical interaction with access control devices.
Implementation Method 1
an audio detection system that has been configured to detect a push button press
Data Source
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AI summary
A method according to one embodiment includes receiving audio input by a microphone of an access control device that controls access through a passageway, processing an audio signal associated with the audio input to identify and authenticate a user, determining a command corresponding with the audio signal in response to identification and authentication of the user, and performing at least one action that corresponds with the command.