Remote-Controlled Vehicle Propeller Sound Control Without Path Drift
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Solution Overview
Problem
Remote-controlled vehicles, such as multi-copters, produce loud and annoying sounds due to their propellers during operation, which can be distracting and disruptive.
Innovation Solution
A system that controls the sounds produced by remote-controlled vehicles by adjusting the rotational speed of propellers to match specific pitches and tones, using active actuators to manipulate thrust and position, allowing for the decoupling of sound from thrust, enabling the vehicle to produce predetermined sounds like musical notes or tones without altering its navigation path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the rotational speed of propellers is increased to maintain thrust, then the vehicle can maintain its position and navigation, but the sound produced becomes louder and more annoying
Solution Approach 1:
The patent segments the control of thrust and sound production into independent functions. Multiple actuators are used to distribute thrust generation across different propellers, allowing individual propeller speeds to be adjusted for sound control while maintaining overall thrust through coordinated actuator operation.
Solution Approach 2:
The system changes the operational parameters of propellers dynamically - adjusting rotational speeds, pitch angles, and activation patterns - to produce desired sounds while maintaining required thrust levels. This allows the vehicle to operate at different sound profiles (e.g., musical notes) without sacrificing positional control.
2Object-generated harmful factors
If the rotational speed of propellers is adjusted to produce specific sounds, then predetermined sounds can be made, but the vehicle's position and navigation may be affected
Solution Approach 1:
The system employs feedback control where sensors continuously monitor vehicle position, orientation, and propeller performance. This feedback is used by the control system to make real-time adjustments to actuator commands, ensuring that sound-producing maneuvers do not compromise navigation accuracy or positional stability.
Solution Approach 2:
The actuators are designed to perform multiple functions - both sound production and thrust generation - allowing the same control system to manage both audio output and navigation requirements simultaneously through integrated control algorithms.
3Adaptability or versatility
If active actuators are used to decouple sound from thrust, then sound can be controlled independently, but the device complexity increases
Solution Approach 1:
The control system automatically manages the complexity of coordinating multiple actuators for sound-thrust decoupling without requiring manual intervention. The system self-regulates by processing sensor data and generating appropriate actuator commands, making the complex system easy to operate while maintaining full functionality.
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 remote-controlled vehicles to produce specific sounds, such as musical notes or tones, without affecting their navigation, allowing for controlled sound production without increasing noise pollution.
Implementation Method 1
The sounds of multi-copters propellers during operation can be loud and annoying
Data Source
AI summary
Systems and methods control sounds produced by a remote-controlled vehicle during operation of the remote-controlled vehicle are described herein. One or more components of the remote-controlled vehicle may be controlled and/or manipulated so that the remote-controlled vehicle produces sounds during operation that match a predetermined set of sounds. The control and/or manipulation of the one or more components of the remote-controlled vehicle may be effectuated without alternating a path of the remote-controlled vehicle.