Flying Device Thruster Pitch Control for Orientation Stability
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Solution Overview
Problem
Flying devices, such as drones, face instability due to abnormalities in their drive mechanisms, which can lead to uncontrolled flight orientations and difficulties in maintaining stable flight.
Innovation Solution
Incorporating a base with thrusters, an orientation detection unit, an abnormality detection unit, and an orientation control unit that adjusts the pitch of propellers in remaining thrusters to maintain orientation and balance propulsive forces when an abnormality is detected in one or more thrusters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the flying device continues operation after thruster abnormality, then flight can be maintained, but orientation stability deteriorates
Solution Approach 1:
The control unit continuously monitors the operational status of all thrusters and receives real-time feedback from the orientation detection unit. When an abnormality is detected in one or more thrusters, the system automatically adjusts the pitch angles of the remaining normal thrusters based on feedback signals to compensate for the lost thrust, thereby maintaining orientation stability while continuing flight operation
Solution Approach 2:
The system changes the operational parameters (pitch angles) of the remaining normal thrusters dynamically. By adjusting the pitch angles of the normal thrusters based on the detected abnormality, the control unit redistributes the thrust forces to compensate for the abnormal thruster(s), maintaining the overall orientation and stability of the flying device during continued operation
2Stability of the object's composition
If pitch angles of remaining thrusters are adjusted to compensate for abnormality, then orientation stability is maintained, but control complexity increases
Solution Approach 1:
The control unit performs multiple functions: it monitors thruster status, detects abnormalities, determines which thrusters are normal, calculates compensatory pitch angle adjustments, and controls the pitch change mechanisms. By consolidating these functions into a single control unit, the system maintains orientation stability while avoiding the need for separate complex control systems for each function
Solution Approach 2:
The system automatically detects thruster abnormalities and autonomously adjusts the pitch angles of remaining normal thrusters without requiring external intervention. The control unit self-regulates the flight characteristics by using the orientation detection unit's data to compute and apply appropriate pitch angle modifications, thereby maintaining stability while simplifying the overall control architecture
Data Source
AI summary
A flying device includes a base, thrusters, an orientation detection unit, an abnormality detection unit, and an orientation control unit. The plurality of thrusters are provided on the base each including a propeller, a motor which drives the propeller, and a pitch change mechanism unit which changes a pitch of the propeller. The orientation detection unit detects an orientation of the base. The abnormality detection unit detects an abnormality in the thrusters. The orientation control unit, when the abnormality detection unit detects an abnormality in at least one of the thrusters, changes the pitches of the propellers in the remaining thrusters to maintain an orientation of the base detected by the orientation detection unit.