UAV Power Control for Rotor Priority During Implement Faults
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Solution Overview
Problem
Existing unmanned aerial vehicles (UAVs) face challenges in managing power supply to external implements during flight, particularly when equipment abnormalities occur, which can compromise the stability and safety of operations.
Innovation Solution
The UAV is equipped with a controller that can detect abnormalities and selectively maintain power to the rotors while stopping power to external implements, ensuring continued flight and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power is supplied to both the rotors and external implements during flight, then the productivity and functionality of the UAV system is improved, but the reliability deteriorates when equipment abnormalities occur
Solution Approach 1:
The power supply system is segmented into two independent control channels: one for rotor motors and one for external implements. The controller can independently manage power distribution to each channel, allowing selective maintenance of rotor power while cutting implement power during abnormalities, thus resolving the contradiction between productivity and reliability.
Solution Approach 2:
The controller is pre-programmed with abnormality detection and response protocols. When equipment abnormalities are detected, the controller automatically executes a predetermined power redistribution sequence that prioritizes rotor power supply before implement power is cut, ensuring reliable flight continuation while maintaining productivity where possible.
2Reliability
If power is prioritized to rotors during abnormalities, then the reliability and safety of flight is improved, but the power available to external implements deteriorates
Solution Approach 1:
The power distribution system is made dynamic and adaptive. During normal operation, power is distributed to both rotors and implements. During abnormalities, the system dynamically reconfigures power distribution to prioritize rotors. This dynamic adjustment resolves the contradiction by allowing the system to optimize power allocation based on real-time operational conditions.
Solution Approach 2:
The controller changes the power supply parameters (voltage, current allocation) based on operational status. During abnormalities, it adjusts the electrical parameters to ensure sufficient power reaches the rotors for safe flight continuation, while reducing or eliminating power to non-critical implements, thus resolving the energy allocation contradiction.
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 allows the UAV to safely navigate and land despite equipment failures by prioritizing rotor power, enhancing operational reliability and safety.
Implementation Method 1
a plurality of electric motors 14 respectively rotating the plurality of rotors 12
Implementation Method 2
A rotary-wing type unmanned aerial vehicle is a UAV that generates lift using propellers, namely rotary wings, which rotate around an axis
Data Source
AI summary
An unmanned aerial vehicle includes a plurality of rotors, a plurality of electric motors each configured to drive a respective one of the plurality of rotors, a power source, and a controller configured or programmed to control supply of first electric power from the power source to the plurality of electric motors and supply of second electric power from the power source to an external implement, and control operation of the plurality of electric motors. Upon detecting an abnormality in equipment included in the unmanned aerial vehicle, the controller is configured or programmed to stop the supply of the second electric power to the implement and maintain the supply of the first electric power to the plurality of electric motors to execute flight using the plurality of rotors.