Voice Control for Evidence Capture Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Police officers often fail to capture critical evidence in time due to manual operation of information capturing devices, and they lack real-time status updates on device operations like power levels during emergencies.
Innovation Solution
A voice control method for information capturing devices that uses a microphone, voice recognition unit, and control unit to recognize voice commands and perform operations such as starting or stopping recordings, displaying device status, and providing battery life information through voice feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If manual operation is used to start capturing data, then the device can be operated with simple controls, but the user cannot capture evidence in time during emergencies
Solution Approach 1:
The patent replaces manual mechanical operation (pressing start switch) with voice-based acoustic control. The voice recognition unit detects voice commands and converts them to control signals, eliminating the need for physical button pressing and enabling instant activation during emergencies.
Solution Approach 2:
The device automatically activates recording functions upon detecting specific voice commands without requiring manual intervention. The system serves itself by listening for and responding to voice instructions, enabling hands-free operation while maintaining ease of use through natural language commands.
2Loss of time
If function switches are operated to check device status, then real-time information can be displayed, but the user cannot obtain status updates quickly during emergencies
Solution Approach 1:
The patent replaces manual switching operations with voice command recognition. Users can query device status by speaking commands like 'show battery level' or 'display recording time', and the voice recognition unit processes these commands to display relevant information without requiring physical button presses.
Solution Approach 2:
The system provides real-time feedback on device status (battery level, recording time, storage capacity) in response to voice queries. The display unit shows relevant information immediately after voice recognition, creating a responsive feedback loop that allows quick status checks during emergencies.
3Ease of operation
If voice recognition is implemented for control, then hands-free operation is enabled, but the device complexity increases
Solution Approach 1:
The voice recognition unit serves multiple functions: it activates recording, queries device status, and provides feedback through voice or display. This multi-functionality justifies the added complexity by consolidating multiple control operations into a single unified interface that enables hands-free operation.
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 information capturing devices, ensuring timely capture of evidence and real-time status updates, improving efficiency and effectiveness in emergency situations.
Implementation Method 1
a microphone 110, a voice recognition unit 120 and a control unit 130. The microphone 110 receives a voice emitted from a user.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A voice control method for an information capturing device includes: receiving a sound signal; performing voice recognition on the sound signal to obtain an actual voice content; confirming at least a command voice content according to the actual voice content; obtaining an operating command corresponding to the command voice content if the actual voice content corresponds to any the command voice content; and performing, in response to the operating command, an operation corresponding to the operating command.