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Christos K. Verginis

13 accepted papers

2024

Leader-Follower Cooperative Manipulation Under Spatio-Temporal Constraints

IROS 2024poster

In this work, we develop a control algorithm for mobile manipulators manipulating an object within a leader-follower framework. Unlike existing literature, we avoid the knowledge of the object’s dynamics, and only the leader is aware of the tasks to be executed by the object. The followers are prima…

Cited by 0SourceScholar
2024

Robust and Safe Task-Driven Planning and Navigation for Heterogeneous Multi-Robot Teams with Uncertain Dynamics

IROS 2024poster

Task and motion planning (TAMP) can enhance intelligent multi-robot coordination. TAMP becomes signifi-cantly more complicated in obstacle-cluttered environments and in the presence of robot dynamic uncertainties. We propose a control framework that solves the motion-planning problem for multi-robot…

Cited by 0SourceScholar
2022

Consensus-based Normalizing-Flow Control: A Case Study in Learning Dual-Arm Coordination

IROS 2022poster

We develop two consensus-based learning algorithms for multi-robot systems applied on complex tasks involving collision constraints and force interactions, such as the cooperative peg-in-hole placement. The proposed algorithms integrate multi-robot distributed consensus and normalizing-flow-based re…

Cited by 3SourceScholar
2022

Cooperative Object Manipulation Under Signal Temporal Logic Tasks and Uncertain Dynamics

RA-L 2022

We address the problem of cooperative manipulation of an object whose tasks are specified by a Signal Temporal Logic (STL) formula. We employ the Prescribed Performance Control (PPC) methodology to guarantee predefined transient and steady-state performance on the object trajectory in order to satis

Cited by 13SourceScholar
2021

Safe, Passive Control for Mechanical Systems with Application to Physical Human-Robot Interactions

ICRA 2021poster

In this paper, we propose a novel safe, passive, and robust control law for mechanical systems. The proposed approach addresses safety from a physical human-robot interaction perspective, where a robot must not only stay inside a pre-defined region, but respect velocity constraints and ensure passiv…

Cited by 17SourceScholar
2020

Augmenting Control Policies with Motion Planning for Robust and Safe Multi-robot Navigation

IROS 2020poster

This work proposes a novel method of incorporating calls to a motion planner inside a potential field control policy for safe multi-robot navigation with uncertain dynamics. The proposed framework can handle more general scenes than the control policy and has low computational costs. Our work is rob…

Cited by 7SourceScholar
2020

Decentralized Nonlinear MPC for Robust Cooperative Manipulation by Heterogeneous Aerial-Ground Robots

IROS 2020poster

Cooperative robotics is a trending topic nowadays as it makes possible a number of tasks that cannot be performed by individual robots, such as heavy payload transportation and agile manipulation. In this work, we address the problem of cooperative transportation by heterogeneous, manipulator- endow…

Cited by 24SourceScholar
2020

Energy-Optimal Cooperative Manipulation via Provable Internal-Force Regulation

ICRA 2020poster

This paper considers the optimal cooperative robotic manipulation problem in terms of energy resources. In particular, we consider rigid cooperative manipulation systems, i.e., with rigid grasping contacts, and study energy-optimal conditions in the sense of minimization of the arising internal forc…

Cited by 12SourceScholar
2019

Reconfigurable Motion Planning and Control in Obstacle Cluttered Environments under Timed Temporal Tasks

ICRA 2019poster

This work addresses the problem of robot navigation under timed temporal specifications in workspaces cluttered with obstacles. We propose a hybrid control strategy that guarantees the accomplishment of a high-level specification expressed as a timed temporal logic formula, while preserving safety (…

Cited by 20SourceScholar
2017

Decentralized motion planning with collision avoidance for a team of UAVs under high level goals

ICRA 2017poster

This paper addresses the motion planning problem for a team of aerial agents under high level goals. We propose a hybrid control strategy that guarantees the accomplishment of each agent's local goal specification, which is given as a temporal logic formula, while guaranteeing inter-agent collision…

Cited by 31SourceScholar
2015

Cooperative manipulation exploiting only implicit communication

IROS 2015poster

This paper addresses the problem of cooperative object manipulation with the coordination relying solely on implicit communication. We consider a decentralized leader-follower architecture where the leading robot, that has exclusive knowledge of the object's desired trajectory, tries to achieve the…

Cited by 71SourceScholar
2015

Decentralized 2-D control of vehicular platoons under limited visual feedback

IROS 2015poster

In this paper, we consider the two dimensional (2-D) predecessor-following control problem for a platoon of unicycle vehicles moving on a planar surface. More specifically, we design a decentralized kinematic control protocol, in the sense that each vehicle calculates its own control signal based so…

Cited by 23SourceScholar