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Douglas G. Macharet

15 accepted papers

2024

Energy-efficient Trajectory Planning with Media Transition for a Hybrid Unmanned Aerial-Underwater Vehicle

IROS 2024poster

Vehicles capable of operating in more than one environment have been developed to solve real problems. Among them, the hybrid unmanned aerial-underwater vehicle (HUAUV) is receiving attention from the robotics community, mainly with a quadrotor-like configuration. However, this vehicle presents high…

Cited by 0SourceScholar
2023

Efficiently Approaching Groups of People in a Socially Acceptable Manner in Environments with Obstacles

ICRA 2023poster

Advancements in mobile robotics have allowed humans and robots to interact in different environments and ways. A problem of great interest in Human-Robot Interaction is how to approach individuals, e.g., to gather information, in a socially acceptable manner. We present a new method for planning seq…

Cited by 3SourceScholar
2023

Energy-Efficient Team Orienteering Problem in the Presence of Time-Varying Ocean Currents

IROS 2023poster

Autonomous Marine Vehicles (AMVs) have gained interest for scientific and commercial applications, including pipeline and algae bloom monitoring, contaminant tracking, and ocean debris removal. The Team Orienteering Problem (TOP) is relevant in this context as Multi-Robot Systems (MRSs) allow for be…

Cited by 2SourceScholar
2023

Minimal Exposure Paths in Time-Varying Fields: A Semi-Lagrangian Approach

RA-L 2023

In the context of Wireless Sensor Networks (WSNs), the Minimal Exposure Path (MEP) represents an important metric to evaluate the quality of network services. Most of the current literature is concentrated on stationary sensors, while few works have addressed the existence of moving nodes. Mobile Wi

Cited by 3SourceScholar
2022

Energy-efficient Orienteering Problem in the Presence of Ocean Currents

IROS 2022poster

In many environmental monitoring applications robots are often tasked to visit various distinct locations to make observations and/or collect specific measurements. The problem of scheduling and assigning robots to the various tasks and planning feasible paths for the robots can be posed as an Orien…

Cited by 7SourceScholar
2021

Anytime Fault-tolerant Adaptive Routing for Multi-Robot Teams

ICRA 2021poster

The Correlated Team Orienteering Problem (CTOP) is a routing problem where the objective is to determine a set of routes that maximizes the summation of collected rewards in the environment while respecting the vehicles’ budget. However, solutions to this problem usually consider static instances an…

Cited by 4SourceScholar
2021

Multi-robot Scheduling for Environmental Monitoring as a Team Orienteering Problem

IROS 2021poster

In this paper, we propose an evolutionary algorithm for solving the multi-robot orienteering problem where a team of cooperative robots aims to maximize the total information collected by visiting a subset of given nodes within a fixed budget on travel costs. Multi-robot orienteering problems are re…

Cited by 21SourceScholar
2021

Three-dimensional Terrain Aware Autonomous Exploration for Subterranean and Confined Spaces

ICRA 2021poster

Despite the advances in autonomous navigation and motion planning, there are still several challenges to overcome, especially for confined or underground spaces. Confined scenarios present challenges such as lack of global or accurate external localization, uneven and slippery terrains, and multilev…

Cited by 23SourceScholar
2020

Adaptive Partitioning for Coordinated Multi-agent Perimeter Defense

IROS 2020poster

Multi-Robot Systems have been recently employed in different applications and have advantages over single-robot systems, such as increased robustness and task performance efficiency. We consider such assemblies specifically in the scenario of perimeter defense, where the task is to defend a circular…

Cited by 32SourceScholar
2020

Game Theoretic Formation Design for Probabilistic Barrier Coverage

IROS 2020poster

We study strategies to deploy defenders/sensors to detect intruders that approach a targeted region. This scenario is formulated as a barrier coverage, which aims to minimize the number of unseen paths. The problem becomes challenging when the number of defenders is insufficient for a full coverage,…

Cited by 7SourceScholar
2020

Minimal 3D Dubins Path with Bounded Curvature and Pitch Angle

ICRA 2020poster

In this paper, we address the problem of finding cost-efficient three-dimensional paths that satisfy the maximum allowed curvature and the pitch angle of the vehicle. For any given initial and final configurations, the problem is decoupled into finding the horizontal and vertical parts of the path s…

Cited by 37SourceScholar
2019

Are You With Me? Determining the Association of Individuals and the Collective Social Space

IROS 2019poster

The increasing use of autonomous mobile robots in different parts of society, and not restricted only to industrial environments, makes it important to propose techniques that will allow them to behave in the most socially acceptable way as possible. In most real-world scenarios, individuals in the…

Cited by 5SourceScholar
2015

3D path planning with continuous bounded curvature and pitch angle profiles using 7th order curves

IROS 2015poster

Path planning is a fundamental task for any kind of autonomous mobile robot. In this paper, we present a motion planning technique on the three-dimensional space considering vehicles with spatial curvature and pitch (climb or dive) angle constraints. Concerning real fixed-wing Unmanned Aerial Vehicl…

Cited by 15SourceScholar