Robot Microphone Mount Layout for Voice and Noise Separation
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Solution Overview
Problem
Existing moving robots face challenges in voice recognition due to noise interference from their own components, such as driving motors, which complicates the separation of voice commands from background noise, and mounting microphones separately leads to inconvenient management and potential misinterpretation of noise as commands.
Innovation Solution
The moving robot incorporates two voice recognition devices positioned strategically to minimize noise interference, with one device recognizing voice commands and the other recognizing noise, allowing the controller to extract accurate voice data by comparing their inputs, and uses a microphone mount with bending prevention ribs to ensure proper sealing and reduce noise introduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the microphone is mounted on the body of the robot cleaner, then the management is convenient, but noise emitted from the robot cleaner may be recognized as a voice command
Solution Approach 1:
The patent divides the robot body into different spatial zones: a first space containing noise-generating components (motor, brush) and a second space containing the microphone. This spatial segmentation isolates the microphone from noise sources while maintaining integrated mounting on the robot body, resolving the contradiction between convenient management and voice recognition accuracy.
2Reliability
If the microphone is not mounted on the body of the robot cleaner, then the voice recognition rate is improved, but the management becomes inconvenient
Solution Approach 1:
The patent combines the microphone and noise-generating components into a single integrated robot body structure. The microphone is mounted on the inner wall of the housing in a dedicated second space, while noise-generating components are positioned in a first space, achieving both convenient management (integrated mounting) and improved voice recognition (spatial separation).
3Reliability
If two voice recognition devices are positioned strategically to minimize noise interference, then the voice recognition efficiency is enhanced, but the device complexity increases
Solution Approach 1:
The controller receives signals from both the first microphone (in the second space) and the second microphone (in the first space), compares their inputs, and processes the difference to extract accurate voice data. This feedback mechanism allows the system to cancel out noise and enhance voice recognition efficiency without requiring complex external noise cancellation equipment.
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
This configuration enhances voice recognition efficiency by effectively distinguishing voice commands from noise, improving the robot's ability to accurately interpret user inputs while maintaining structural integrity and noise isolation.
Implementation Method 1
a voice recognition member (400) disposed between the inner housing (210) and the outer housing (220)
Data Source
AI summary
A moving robot may include a main body which forms a space therein, an inner housing which surrounds the main body, an outer housing, two voice recognition members/devices (or voice sensors) which are disposed in the housings and are disposed to be separated from each other, and a microphone mount which is supported by the inner housing and causes the voice recognition device to be in close contact with the outer housing. The microphone mount may include a bending prevention rib which is disposed below the microphone mount to prevent bending of the microphone mount, and a twist prevention rib which is disposed below the microphone mount to prevent twisting of the microphone mount.