UAV Redundant Remote Control Switching for Connection Failures
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Solution Overview
Problem
Current UAV control systems face safety issues due to abnormal connections with remote control devices, leading to loss of control and potential accidents.
Innovation Solution
A method and system that utilize multiple remote control devices and receivers to select and switch between control signals, ensuring redundancy and maintaining control even if one connection becomes abnormal, by using a flight controller to receive and process signals from both main and backup remote control devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single remote control device is used to control the UAV, then the control system is simple, but the system reliability deteriorates due to abnormal connections causing loss of control
Solution Approach 1:
The system pre-configures multiple remote control devices and receivers before operation begins. When the primary control connection fails, the system has already prepared backup control signals from secondary remote devices, allowing immediate switching without delay or reconfiguration.
Solution Approach 2:
The patent implements redundant control signal sources as a protective measure against connection failures. By having multiple remote control devices ready, the system cushions against the harmful effect of abnormal connections, ensuring continuous control capability even when primary connections fail.
2Reliability
If multiple remote control devices are used for redundancy, then the reliability improves, but the device complexity increases due to multiple receivers and signal processing requirements
Solution Approach 1:
The patent combines multiple control signals from different remote devices into a unified control output. The flight controller integrates signals from multiple receivers, selecting or combining control inputs to produce a single coherent control command for the UAV, thereby managing complexity through consolidation.
Solution Approach 2:
The flight controller is designed with multi-functionality to handle various control signal sources. It can process signals from primary and secondary remote control devices, automatically switching between them based on connection status, making the control system versatile and adaptable to different input sources.
3Object-affected harmful factors
If automatic switching between control signals is implemented, then the safety improves by preventing loss of control, but the control logic complexity increases
Solution Approach 1:
The system continuously monitors the connection status of remote control devices and provides feedback to the flight controller. Based on this real-time feedback about signal quality and connection integrity, the system automatically switches between control sources, using feedback loops to maintain safe operation without manual intervention.
Solution Approach 2:
The control system pre-establishes switching logic and priority sequences for multiple remote control devices. When connection failures occur, the predetermined switching protocol automatically activates the next available control source, eliminating the need for complex real-time decision-making during critical failure scenarios.
Data Source
AI summary
A method includes receiving, by a first receiver communicatively coupled with a first remote control device, a first control signal from the first remote control device. The method also includes receiving, by a second receiver communicatively coupled with a second remote control device, a second control signal from the second remote control device. The method further includes selecting one of the first control signal of the first remote control device and the second control signal of the second remote control device for controlling a movable object.