Multi-rotor Flying Object Steering Unit for Directional Control
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Solution Overview
Problem
Multi-rotor flying objects, such as quad-rotors, face limitations in rapidly changing direction while maintaining body horizontality, which affects their control and stability, especially when carrying cameras or loads, due to the under-actuated nature of their systems.
Innovation Solution
The implementation of a steering unit with a connection member and actuators that allow simultaneous inclination of rotor units around multiple axes, maintaining body horizontality during direction changes, and a control unit for precise rotation speed and angle adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the multi-rotor flying object changes direction by inclining the entire body, then the direction can be changed, but the body horizontality is lost and the response is slow
Solution Approach 1:
The patent divides the inclination function into two separate components: body inclination and rotor unit inclination. The rotor units are segmented from the body structure, allowing independent control of rotor orientation without moving the entire body. This segmentation enables the rotors to incline relative to the body, providing rapid direction changes while keeping the body horizontal and stable.
2Adaptability or versatility
If the multi-rotor flying object is designed as an under-actuated system with fixed rotor orientation, then the mechanical structure is simple, but the control flexibility and rapid response are limited
Solution Approach 1:
The patent introduces dynamic adjustability to the rotor units through inclination mechanisms. Each rotor unit is equipped with actuators that enable real-time orientation changes, transforming the system from a static, fixed-orientation configuration to a dynamic, adaptable one. This allows the multi-rotor to rapidly adjust its thrust vector orientation without fundamentally changing the overall mechanical structure, achieving enhanced control flexibility with moderate complexity increase.
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 rapid direction changes without severe inclination, enhancing stability and safety during transport and image capture by maintaining body horizontality, allowing for more efficient and stable flight operations.
Implementation Method 1
an actuator installed on the body and activating the connection member to allow the plurality of rotor units to be simultaneously inclined at the same angle with respect to the body
Implementation Method 2
a plurality of rotor units each including a propeller and a power unit for driving the propeller
Data Source
AI summary
The present invention provides a multi-rotor flying object including: a body; a plurality of rotor units each including a propeller and a power unit for driving the propeller; and a steering unit including a connection member connecting the plurality of rotor units to each other and an actuator installed on the body and activating the connection member to allow the plurality of rotor units to be simultaneously inclined at the same angle with respect to the body.