Smart Speaker Rotation Control Using Physical Zero-Initialization
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Solution Overview
Problem
Smart speakers with display screens face issues in accurately rotating to target angles due to accumulated errors in gyroscope detection, leading to deviations between intended and actual rotation angles.
Innovation Solution
Incorporating a physical zero-initialization point and two sensors to detect and reset the rotation angle, allowing for precise control of the rotation body by setting the detected angle to zero and re-detecting it, thereby reducing accumulated errors and deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If gyroscope integration method is used to detect rotation angle, then rotation angle detection is achieved, but accumulated error causes deviation between target angle and actual rotation angle
Solution Approach 1:
The patent introduces a second sensor (optical sensor) as an intermediary to detect the physical zero-initialization point and provide correction signals. This optical mediator compensates for the accumulated errors in the gyroscope's integration-based angle detection, thereby improving reliability without sacrificing measurement capability
Solution Approach 2:
The system implements feedback by using the second sensor to detect the physical zero point and generate correction signals that are fed back to reset the first sensor's accumulated error. This feedback mechanism continuously corrects drift and maintains long-term accuracy
2Measurement precision
If physical zero-initialization point and second sensor are added, then accumulated error is reduced and rotation precision is improved, but device complexity increases
Solution Approach 1:
The patent divides the detection function into two specialized components: the first sensor (gyroscope) handles continuous rotation angle detection, while the second sensor (optical sensor) specifically detects the physical zero-initialization point. This segmentation allows each sensor to be optimized for its specific function, improving overall precision while managing complexity through functional specialization
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 solution enables the smart speaker to accurately rotate to target angles, reducing the deviation between intended and actual rotation, thus improving the precision of screen orientation.
Implementation Method 1
the second sensor is provided on the base and used to emit wave signals toward the first surface of the rotation body; wherein the wave signals emitted by the second sensor are irradiated on different first regions of the first surface of the rotation body, and reflected light signals received by the second sensor are different
Data Source
AI summary
The present disclosure discloses a method and apparatus for controlling an electronic device, a device and a readable storage medium, and relates to the field of control technology. The electronic device comprises: a base, a rotating body, a first sensor, and a second sensor, wherein the rotating body is rotatably connected to the base, and a physical zero-initialization point is provided on the rotating body or the base; the first sensor is used to detect a rotation angle of the rotating body on a rotation plane; the second sensor is used to detect the physical zero-initialization point, and the physical zero-initialization point is such a position that after the rotation angle of the rotating body detected by the first sensor is zeroed on the rotation plane, the rotation angle of the rotating body on the rotation plane is re-detected by the first sensor.