Cooperative energy harvesting for long-endurance autonomous vehicle teams
2010
This paper considers the exploitation of energy harvesting technologies for teams of Autonomous Vehicles (AVs).
Traditionally, the optimisation of information gathering tasks such as searching for and tracking new objects, and
platform level power management, are only integrated at a mission-management level. In order to truly exploit new
energy harvesting technologies which are emerging in both the commercial and military domains (for example the
'EATR' robot and next-generation solar panels), the sensor management and power management processes must be
directly coupled. This paper presents a novel non-myopic sensor management framework which addresses this issue
through the use of a predictive platform energy model. Energy harvesting opportunities are modelled using a dynamic
spatial-temporal energy map and sensor and platform actions are optimised according to global team utility. The
framework allows the assessment of a variety of different energy harvesting technologies and perceptive tasks. In this
paper, two representative scenarios are used to parameterise the model with specific efficiency and energy abundance
figures. Simulation results indicate that the integration of intelligent power management with traditional sensor
management processes can significantly increase operational endurance and, in some cases, simultaneously improve
surveillance or tracking performance. Furthermore, the framework is used to assess the potential impact of energy
harvesting technologies at various efficiency levels. This provides important insight into the potential benefits that
intelligent power management can offer in relation to improving system performance and reducing the dependency on
fossil fuels and logistical support.
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