UAV Flight Control Layout for Vibration-Stable IMU Integration
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Solution Overview
Problem
Unmanned aerial vehicle control devices have low integration levels and are vulnerable to vibration, leading to inaccurate measurements and increased complexity due to separate interface boards that are prone to misplug and vibration interference.
Innovation Solution
A compact control device design featuring a shell with a flexible interface board that integrates multiple interface boards, reducing vibration influence and misplug risks through a limiting frame and header connectors, and a flexible power supply board to shield electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate interface boards are used to connect external devices, then the control device can support multiple functions, but the device complexity increases and the reliability decreases due to misplug and vibration interference
Solution Approach 1:
The patent integrates multiple separate interface boards into a single integrated interface board that provides USB, audio, and other connectivity functions through one unified component, reducing structural complexity while maintaining multi-functionality
Solution Approach 2:
The integrated interface board serves multiple functions simultaneously, providing various external device connections (USB, audio, etc.) through a single multi-functional component rather than separate dedicated boards for each function
2Adaptability or versatility
If multiple separate interface boards are used, then different interface functions can be provided, but the reliability decreases due to vulnerability to vibration and misplug
Solution Approach 1:
By combining multiple interface boards into one integrated unit, the patent eliminates the misplug risk associated with multiple separate connectors and reduces vibration vulnerability through a unified, more stable mounting structure
Solution Approach 2:
The integrated interface board design preemptively prevents misplug errors by providing a single unified connection point, and the unified mounting structure preemptively reduces vibration impact before it can affect multiple separate components
3Stability of the object's composition
If a rigid structure is used to mount the inertial measurement device, then the device is stable, but the vibration from the unmanned aerial vehicle directly affects the measurement accuracy
Solution Approach 1:
The patent introduces a damping structure between the inertial measurement device and the shell to preemptively absorb and attenuate vibration signals before they reach the sensitive measurement components, thereby maintaining measurement precision while preserving mounting stability
Solution Approach 2:
The damping structure serves as an intermediary element between the rigid mounting structure and the inertial measurement device, filtering out harmful vibrations while allowing the stable mounting arrangement to remain in place
4Ease of manufacture
If the control device components are arranged with sufficient spacing, then each component can be properly mounted, but the overall volume of the control device increases
Solution Approach 1:
The patent consolidates multiple interface boards into one integrated unit, which reduces the total component count and allows for more compact arrangement of components within the control device housing, thereby reducing overall volume while maintaining ease of assembly
Solution Approach 2:
The integrated interface board design allows for more efficient space utilization where components can be nested or arranged in a compact configuration, reducing the overall volume required for the control device
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
The solution enhances the stability and accuracy of inertial measurement data, improves integration, and reduces the overall volume of the control device, thereby increasing the reliability and precision of unmanned aerial vehicle navigation.
Implementation Method 1
a second flexible board electrically connected to the flexible power supply board, the second flexible board is located between the flexible power supply board and the second interface board, the second flexible board is used to shield the electromagnetic interference between the flexible power supply board and the second interface board
Data Source
AI summary
Provided are a control device for unmanned aerial vehicle and an unmanned aerial vehicle. The control device for unmanned aerial vehicle includes a shell, an inertial measurement device fixed in the shell, a main flight control circuit board electrically connected to the inertial measurement device, and a flexible interface board electrically connected to the main flight control circuit board and appressed against the inwall of the shell. At least one external device is connected to two opposite sides of the flexible interface board through the shell.