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Hierarchical mission planning with a GA-optimizer for unmanned high altitude pseudo-satellites

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Kiam, Jane Jean and Besada Portas, Eva and Schulte, Axel (2021) Hierarchical mission planning with a GA-optimizer for unmanned high altitude pseudo-satellites. Sensors, 21 (5). ISSN 1424-8220

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Official URL: http://dx.doi.org/10.3390/s21051630




Abstract

Unmanned Aerial Vehicles (UAVs) are gaining preference for mapping and monitoring ground activities, partially due to the cost efficiency and availability of lightweight high-resolution imaging sensors. Recent advances in solar-powered High Altitude Pseudo-Satellites (HAPSs) widen the future use of multiple UAVs of this sort for long-endurance remote sensing, from the lower stratosphere of vast ground areas. However, to increase mission success and safety, the effect of the wind on the platform dynamics and of the cloud coverage on the quality of the images must be considered during mission planning. For this reason, this article presents a new planner that, considering the weather conditions, determines the temporal hierarchical decomposition of the tasks of several HAPSs. This planner is supported by a Multiple Objective Evolutionary Algorithm (MOEA) that determines the best Pareto front of feasible high-level plans according to different objectives carefully defined to consider the uncertainties imposed by the time-varying conditions of the environment. Meanwhile, the feasibility of the plans is assured by integrating constraints handling techniques in the MOEA. Leveraging historical weather data and realistic mission settings, we analyze the performance of the planner for different scenarios and conclude that it is capable of determining overall good solutions under different conditions.


Item Type:Article
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© 2021 by the authors. Licensee MDPI
This research was funded by Project StraVARIA, a Ludwig Bolkow Campus project. Eva Besada Portas' contributions are funded by the the Spanish National Challenge Grant RTI2018098962-B-C21.

Uncontrolled Keywords:HAPS; UAV; Monitoring; Constrained multiple objective optimization; Temporal hierarchical task planning
Subjects:Sciences > Computer science > Artificial intelligence
ID Code:64837
Deposited On:16 Apr 2021 15:22
Last Modified:17 Apr 2021 09:41

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