Motor Control Mode Switching for Voice and Face Recognition
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Solution Overview
Problem
In IoT environments, noise and vibration from motor operations during face tracking degrade the performance of voice and face recognition in electronic devices, as these disturbances interfere with voice signals and affect camera stability.
Innovation Solution
Implementing a dual motor control mode system where a first mode is used for face detection and a second, lower-noise mode for voice and face recognition, with the option to switch to a third mode with even reduced noise and vibration if the second mode fails, thereby improving recognition performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor operates in the first motor control mode to perform face tracking, then the face tracking performance is improved, but noise and vibration are generated that degrade voice and face recognition performance
Solution Approach 1:
The patent applies dynamics by switching the motor control mode from a first mode during face tracking to a second mode during voice and face recognition. This dynamic adjustment of motor operation parameters reduces noise and vibration generation while maintaining face tracking performance when needed.
Solution Approach 2:
The patent changes the motor operating parameters by transitioning between different control modes. The first motor control mode is used for face tracking, while the second motor control mode is specifically designed to reduce noise and vibration during recognition operations, thereby resolving the contradiction between tracking performance and noise generation.
2Measurement precision
If the motor operates in the first motor control mode, then face tracking is performed accurately, but the voice signal quality deteriorates due to motor noise interference
Solution Approach 1:
The system dynamically adjusts motor control modes based on operational requirements. During voice recognition, the motor switches to the second control mode which minimizes noise emission, thereby preserving voice signal quality while maintaining the capability for accurate face tracking when the first mode is activated.
Solution Approach 2:
The patent changes motor operating parameters by selecting different control modes. The second motor control mode is specifically optimized to reduce noise output, preventing degradation of voice signal quality during recognition operations while allowing high-precision face tracking when the first mode is used.
3Reliability
If the motor operates in the first motor control mode, then the camera can track the face effectively, but the image quality deteriorates due to vibration-induced blow phenomenon
Solution Approach 1:
The patent implements dynamic motor control mode switching where the motor operates in the first mode during face tracking to maintain effective camera alignment, then switches to the second mode during recognition to minimize vibration. This dynamic adjustment prevents vibration-induced image degradation while preserving face tracking effectiveness.
Solution Approach 2:
The patent changes motor operating parameters by transitioning between control modes. The second motor control mode is designed to reduce vibration output, preventing the blow phenomenon that degrades image quality during capture, while the first mode maintains effective face tracking capability when activated.
Data Source
AI summary
Various embodiments related to an electronic device are disclosed, and an electronic device according to one embodiment comprises: a camera; at least one microphone; at least one motor for rotating the camera around at least one axis; and at least one processor, wherein the processor can be configured to: receive a voice through at least one microphone and an image through the camera; perform a first control on at least one motor on the basis of at least a first motor control mode; use at least one motor on the basis of at least the first control so as to perform first face tracking using the received image; perform a second control on at least one motor on the basis of a second motor control mode during the first tracking; and perform voice recognition or face recognition by using at least one motor on the basis of at least the second control. Other various embodiments are possible.