Multi-UAV Cargo Transport With Relative Position Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for transporting heavy or long cargo using a single UAV face challenges in maintaining a stable posture due to limitations in payload capacity and alignment of the cargo's center of gravity with the UAV's center of gravity.
Innovation Solution
The method involves using multiple UAVs to transport cargo, where each UAV controls its position relative to the cargo, maintaining a constant relative positional relationship to ensure stable transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single UAV is used to transport cargo, then the device complexity is low, but the transport capacity and stability deteriorate when cargo is heavy or long
Solution Approach 1:
The cargo transport task is segmented across multiple UAVs instead of relying on a single UAV. Each UAV carries a portion of the cargo or positions itself at specific locations along the cargo, distributing the transport function across multiple independent units. This segmentation enables the system to handle heavy or long cargo that exceeds the capacity of a single UAV while maintaining individual UAV simplicity.
2Reliability
If multiple UAVs are used to transport cargo, then the transport capacity improves, but the device complexity increases
Solution Approach 1:
Multiple UAVs are merged into a coordinated transport system where they function as a unified group. The UAVs maintain predetermined positional relationships with each other and with the cargo, effectively merging their individual capabilities into a collective transport unit. This merging approach increases transport capacity and stability while managing the complexity through standardized coordination protocols.
3Reliability
If multiple UAVs are used to transport long cargo, then the transport capacity improves, but the control difficulty increases
Solution Approach 1:
The control system incorporates feedback mechanisms where each UAV continuously monitors its position relative to the cargo and other UAVs, and adjusts its flight parameters accordingly. The management device receives position information from all UAVs and provides corrective control commands to maintain the predetermined positional relationships. This feedback loop enables stable transport of long cargo despite the increased control complexity.
Solution Approach 2:
The system establishes predetermined positional relationships between multiple UAVs and the cargo before transport begins. These predetermined positions are calculated and set in advance based on cargo characteristics and UAV capabilities, allowing the UAVs to maintain proper formation and cargo posture without requiring complex real-time adjustments during flight.
Data Source
AI summary
In a method of transporting cargo suspended by multiple UAVs, each of the multiple UAVs flies such that a relative positional relationship of each of the multiple UAVs to the cargo is maintained. This method of transporting cargo is achieved by one or both of a ground position control mode in which flight of each of the multiple UAVs is controlled to follow a change in a position of the cargo relative to the ground, and an interval control mode in which the flight of each of the multiple UAVs is controlled so as to maintain an interval of each of the multiple UAVs to the cargo.