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A low-cost, autonomous mobile platform for limnological investigations, supported by high-resolution mesoscale airborne imagery.


ABSTRACT: Two complementary measurement systems-built upon an autonomous floating craft and a tethered balloon-for lake research and monitoring are presented. The autonomous vehicle was assembled on a catamaran for stability, and is capable of handling a variety of instrumentation for in situ and near-surface measurements. The catamaran hulls, each equipped with a small electric motor, support rigid decks for arranging equipment. An electric generator provides full autonomy for about 8 h. The modular power supply and instrumentation data management systems are housed in two boxes, which enable rapid setup. Due to legal restrictions in Switzerland (where the craft is routinely used), the platform must be observed from an accompanying boat while in operation. Nevertheless, the control system permits fully autonomous operation, with motion controlled by speed settings and waypoints, as well as obstacle detection. On-board instrumentation is connected to a central hub for data storage, with real-time monitoring of measurements from the accompanying boat. Measurements from the floating platform are complemented by mesoscale imaging from an instrument package attached to a He-filled balloon. The aerial package records thermal and RGB imagery, and transmits it in real-time to a ground station. The balloon can be tethered to the autonomous catamaran or to the accompanying boat. Missions can be modified according to imagery and/or catamaran measurements. Illustrative results showing the surface thermal variations of Lake Geneva demonstrate the versatility of the combined floating platform/balloon imagery system setup for limnological investigations.

SUBMITTER: Barry DA 

PROVIDER: S-EPMC6375554 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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A low-cost, autonomous mobile platform for limnological investigations, supported by high-resolution mesoscale airborne imagery.

Barry D Andrew DA   Liardon Jean-Luc JL   Paccaud Philippe P   Klaus Pascal P   Gujja Shaik Nawaaz S NS   Irani Rahaghi Abolfazl A   Zulliger Ludovic L   Béguin Jérôme J   Geissmann Beat B   Tulyakov Stepan S   Ivanov Anton A   Wynn Htet Kyi HK   Lemmin Ulrich U  

PloS one 20190214 2


Two complementary measurement systems-built upon an autonomous floating craft and a tethered balloon-for lake research and monitoring are presented. The autonomous vehicle was assembled on a catamaran for stability, and is capable of handling a variety of instrumentation for in situ and near-surface measurements. The catamaran hulls, each equipped with a small electric motor, support rigid decks for arranging equipment. An electric generator provides full autonomy for about 8 h. The modular powe  ...[more]

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