Aerial Vehicle Replacement Positioning for Mobile Backhaul Continuity
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Solution Overview
Problem
Aerial vehicles used in wireless mobile backhaul systems have limited flight times due to factors like wind conditions and battery life, preventing them from performing long-term missions such as providing continuous wireless access network services.
Innovation Solution
An apparatus and method for setting the initial location of a replacement aerial vehicle by calculating separation distances, service area radii, and angles of interference using GPS locations, 3-D rotation transformations, and geodetic coordinate systems to ensure seamless connectivity through aerial vehicle replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If aerial vehicles are used for wireless mobile backhaul, then wireless access network services can be provided, but flight time is limited due to battery life and wind conditions
Solution Approach 1:
The system performs preliminary actions by calculating the optimal initial location for the replacement aerial vehicle before the actual replacement occurs. This includes computing separation distances, service area radii, and angles of interference in advance, and positioning the replacement vehicle at the calculated location ready for immediate takeover when the current vehicle needs replacement.
Solution Approach 2:
The system ensures continuous useful action by implementing a seamless handover mechanism where the replacement aerial vehicle is pre-positioned and ready to take over services immediately when the current vehicle's flight time expires or conditions require replacement, eliminating service interruptions and maintaining continuous wireless backhaul connectivity.
2Duration of action of stationary object
If aerial vehicle replacement is implemented, then long-term missions can be performed, but service continuity must be maintained during transition
Solution Approach 1:
The system performs preliminary positioning of the replacement aerial vehicle at a calculated optimal location before the actual replacement occurs. This advance preparation ensures that when replacement is needed, the new vehicle is already in the correct position and orientation to maintain seamless service continuity.
Solution Approach 2:
The system uses feedback mechanisms by monitoring the current aerial vehicle's flight status, battery life, and environmental conditions to determine when replacement is needed, while also using the current vehicle's location and service parameters to calculate and position the replacement vehicle appropriately for seamless handover.
3Measurement precision
If complex calculations are performed for initial location setting, then optimal replacement location can be determined, but system complexity increases
Solution Approach 1:
The complex location calculation system is segmented into distinct functional modules: obtaining GPS location information, calculating separation distances between hub and aerial vehicles, determining service area radii based on beam angles, computing angles of interference, performing coordinate transformations, and determining the final initial location. This modular segmentation makes the complex calculation system more manageable and implementable.
Data Source
AI summary
A method of setting an initial location of an aerial vehicle for the replacement of the aerial vehicle of a mobile backhaul system includes obtaining a first separation distance between a mobile backhaul hub and a first aerial vehicle, obtaining a second separation distance between a second aerial vehicle and the mobile backhaul hub by considering the location of the first aerial vehicle, a service area radius of a first flying base station mounted on the first aerial vehicle, and information on a handover overlap area in which handover to the second aerial vehicle is considered, calculating an angle of interference for 3-D rotation transformation based on the first separation distance and the second separation distance, and calculating location information of the second aerial vehicle to be replaced based on coordinate transformation and 3-D rotation transformation with respect to the location information of the first aerial vehicle.