Distributed UAV Control Architecture for Shorter Signal Wiring
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Solution Overview
Problem
Traditional centralized control systems for UAVs lead to signal distortion, bit errors, and interference due to long signal wiring, reducing the reliability and performance of UAVs as they require more sensors and higher signal bandwidths.
Innovation Solution
A distributed architecture for movable platforms, where signal modules are grouped and concentrated in specific areas with corresponding control modules, using an optical fiber bus for signal transmission between control modules, minimizing long wiring and radiation interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If all sensors and loads are centrally connected to a core board, then centralized control is achieved, but signal wiring becomes too long causing signal distortion and bit errors
Solution Approach 1:
The patent divides the centralized control system into multiple distributed control units, each responsible for specific signal modules in their local area. This segmentation reduces signal transmission distance for each control unit while maintaining overall system control functionality, thereby improving signal reliability without sacrificing centralized coordination capabilities.
Solution Approach 2:
The patent transitions from a single-dimensional centralized control architecture to a multi-dimensional distributed network architecture. Control units are distributed across different spatial locations corresponding to different signal module groups, creating a networked control system that maintains coordination while reducing individual signal path lengths.
2Device complexity
If all sensors and loads are centrally connected to a core board, then centralized control is achieved, but signal radiation and interference increase
Solution Approach 1:
By segmenting the control system into multiple distributed control units, each handling local signal modules, the patent reduces the total length of high-speed signal wires. This segmentation directly reduces signal radiation and electromagnetic interference while maintaining centralized coordination through inter-unit communication.
3Reliability
If signal modules are distributed in different areas with local control modules, then signal wiring length is reduced, but system complexity increases
Solution Approach 1:
The patent designs control units with universal functionality that can handle multiple types of signal modules (cameras, radars, sensors, etc.). Each control unit serves as a multi-functional node that can process various signal types, reducing the need for specialized control circuits and simplifying the overall distributed architecture.
Solution Approach 2:
The patent introduces a standardized communication protocol and interface layer as an intermediary between distributed control units and signal modules. This intermediary layer abstracts the complexity of distributed control, enabling modular control units to interact with diverse signal modules through统一 interfaces, thereby reducing system complexity.
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 approach reduces signal distortion and interference, improves reliability, and enhances the performance of movable platforms by allowing nearby connections between signal modules and control modules, ensuring accurate and quick signal sharing and transmission.
Implementation Method 1
a signal transmission device provided between the control modules and used for transmitting signals between the control modules
Data Source
AI summary
A distributed structure of a movable platform and a movable platform are provided. The movable platform includes: a platform body, a driving part, a plurality of signal modules divided into at least two groups, where each group of the signal modules is concentrated in one area; at least two control modules, where each control module is arranged in the area where a corresponding group of the signal modules is located, and each control module can directly obtain signals of the corresponding group of the signal modules in its area; and an signal transmission device, which is provided between the control modules and is configured to transmit signals between the control modules.