Voice Control Device Gunshot Detection Recording
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Solution Overview
Problem
Conventional portable information capturing devices require manual operation, which can result in delayed data capture during emergencies, causing crucial images or sounds to be missed.
Innovation Solution
An information capturing device equipped with a microphone, voice recognition unit, and control unit that automatically starts recording upon detecting a gunshot sound, using a sound model database to identify specific sound signals and execute corresponding commands for video recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If manual operation is used to start recording, then the device requires simple structure and low power consumption, but the response time is delayed and crucial events may be missed
Solution Approach 1:
The device performs preliminary action by continuously monitoring the acoustic environment and pre-recognizing gunshot sounds before manual intervention is needed. The voice recognition unit and sound model database are prepared in advance to immediately trigger recording when a gunshot is detected, eliminating the delay between event occurrence and recording start.
Solution Approach 2:
The patent replaces the mechanical manual operation system with an automated acoustic detection and recognition system. The microphone, voice recognition unit, and control unit work together to automatically detect gunshot sounds and trigger recording, substituting human manual activation with an automated sensing and response mechanism.
2Reliability
If automatic gunshot detection is implemented, then the response time is improved and events are captured timely, but the device complexity increases due to additional components
Solution Approach 1:
The device performs self-service by autonomously detecting gunshot sounds, recognizing the event type, and automatically starting recording without requiring external manual intervention. The control unit self-manages the coordination between the microphone, voice recognition unit, and recording function, making the system self-sufficient in detecting and responding to critical events.
Solution Approach 2:
The system implements feedback through the voice recognition unit analyzing acoustic signals from the microphone and providing feedback to the control unit. When the recognized sound matches a gunshot pattern in the sound model database, the feedback triggers the recording function, creating a closed-loop automatic response system that improves reliability.
3Extent of automation
If voice recognition and sound analysis units are added, then automatic event detection capability is improved, but the power consumption increases
Solution Approach 1:
The system employs periodic action by continuously monitoring acoustic signals through the microphone and voice recognition unit, analyzing sound patterns at regular intervals. This continuous periodic detection enables automatic gunshot recognition while allowing the device to enter low-power states between detection cycles when no critical events are anticipated, balancing automation with power efficiency.
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 timely and automatic data capture in emergency situations, ensuring that critical events are recorded without manual intervention, improving evidence collection for police officers.
Implementation Method 1
a microphone 110, a voice recognition unit 120
Data Source
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AI summary
A voice control method for an information capturing device includes: receiving a sound signal, comparing the sound signal with at least a gunshot datum, performing voice recognition on the sound signal so as to obtain an actual voice content, confirming at least a command voice content according to the actual voice content; obtaining, if the actual voice content corresponds to any one the command voice content, an operation command corresponding to the command voice content such that the information capturing device performs an operation in response to and corresponding to the operation command; and outputting, if the sound signal matches any one the gunshot datum, a start recording command such that the information capturing device performs video recording in response to the start recording command.