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Gathering few fat mobile robots in the plane
2009
Theoretical Computer Science
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This is the first algorithmic result on gathering robots represented by two-dimensional figures rather than points in the plain: we call such robots fat. ...
Autonomous identical robots represented by unit discs move deterministically in the plane. ...
The third author's research was partially supported by the Research Chair in Distributed Computing at the Université du Québec en Outaouais. ...
doi:10.1016/j.tcs.2008.10.005
fatcat:6ejloolltjghbl4ns5d3ka5uwe
A Survey on Open Problems for Mobile Robots
[article]
2011
arXiv
pre-print
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Then, the focus shifts on the open problem of gathering fat robots. In this context, "fat" means that the robot is not represented by a point in a bidimensional space, but it has an extent. ...
For at most 4 robots an algorithm is provided in the literature, but is gathering always possible for n>4 fat robots? Another open problem is considered: Boundary Patrolling by mobile robots. ...
Gathering fat mobile robots In this Section we will describe the robot model and the main results related to the problem of Gathering mobile robots. ...
arXiv:1111.2259v1
fatcat:hpqg3mjkwbbilbskgyov6abgbm
Autonomous Mobile Robots: A Distributed Computing Perspective
[chapter]
2013
Lecture Notes in Computer Science
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The distributed coordination and control of a team of autonomous mobile robots is a problem widely studied in a variety of fields, such as engineering, artificial intelligence, artificial life, robotics ...
In this paper we describe the current investigations on the algorithmic limitations of what autonomous mobile robots can do with respect to different coordination problems, and overview the main research ...
Acknowledgements The author would like to thank Paola Flocchini and Nicola Santoro for their help and suggestions in the preparation of this paper. ...
doi:10.1007/978-3-642-45346-5_2
fatcat:4ngp6gsko5fh5lc4n2hljihvs4
Getting Close without Touching
[chapter]
2012
Lecture Notes in Computer Science
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In this paper we study the Near-Gathering problem for a set of asynchronous, anonymous, oblivious and autonomous mobile robots with limited visibility moving in Look-Compute-Move (LCM) cycles: In this ...
Here, we present a collision-free algorithm for the Near-Gathering problem, the first to our knowledge, that allows a set of autonomous mobile robots to nearly gather within finite time. ...
We would like to thank Paola Flocchini, Nicola Santoro, and Peter Widmayer, who contributed to the writing of this paper by sharing their ideas. ...
doi:10.1007/978-3-642-31104-8_27
fatcat:j2pegy4crrcthgjiiqyo5rursm
Gathering Anonymous, Oblivious Robots on a Grid
[article]
2017
arXiv
pre-print
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2017 pre-print arXiv:1702.03400v2 fatcat:wlonns4mh5elhavabs2mgx7msqOther Versions
The only gathering algorithm under this robot model, with known runtime bounds, needs O(n^2) rounds and works in the Euclidean plane. ...
We consider a swarm of n autonomous mobile robots, distributed on a 2-dimensional grid. ...
The question of gathering on graphs instead of gathering in the plane was considered in [Mar09, DFKP06, KMP08] . ...
arXiv:1702.03400v3
fatcat:2oxpzzglrndgxnsyb2hqudtm5i
Getting close without touching: near-gathering for autonomous mobile robots
2015
Distributed computing
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In this paper we study the Near-Gathering problem for a finite set of dimensionless, deterministic, asynchronous, anonymous, oblivious and autonomous mobile robots with limited visibility moving in the ...
Euclidean plane in Look-Compute-Move (LCM) cycles. ...
We also thank the anonymous reviewers for 23 precious comments that helped us improve the readability of this paper. ...
doi:10.1007/s00446-015-0248-5
fatcat:u4vjnnpwqvhd5ao3z2mbq7isjy
Getting Close Without Touching: Near-Gathering for Autonomous Mobile Robots
[article]
2015
arXiv
pre-print
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In this paper we study the Near-Gathering problem for a finite set of dimensionless, deterministic, asynchronous, anonymous, oblivious and autonomous mobile robots with limited visibility moving in the ...
Euclidean plane in Look-Compute-Move (LCM) cycles. ...
We also thank the anonymous reviewers for 23 precious comments that helped us improve the readability of this paper. ...
arXiv:1505.07168v1
fatcat:4h5tkahsezfz7gz2flbzd7htoi
Fault-Tolerant Gathering of Mobile Robots with Weak Multiplicity Detection
[article]
2016
arXiv
pre-print
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., no robot waits for other robot and algorithm instructs each robot to move in every step, unless it is already at the gathering location), that gathers all non-faulty robots in semi-synchronous model ...
We show that the required capability for gathering robots is minimal in the above model, since relaxing it further makes gathering impossible to solve. ...
GATHERING (N,N − 1) CRASH FAULT IN SSYNC MODEL
Model The robots are modeled as points in a Euclidean plane. ...
arXiv:1608.02432v1
fatcat:tmi6572st5htjftqstt3l2unie
Gathering Anonymous, Oblivious Robots on a Grid
[chapter]
2017
Lecture Notes in Computer Science
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The only gathering algorithm under this robot model, with known runtime bounds, needs O(n 2 ) rounds and works in the Euclidean plane. ...
We consider a swarm of n autonomous mobile robots, distributed on a 2-dimensional grid. ...
In the present paper, we deliver such an algorithm that uses the same strongly restricted model as the Euclidean Go-To-The-Center gathering strategy
Our Local Model Our mobile robots need very few and ...
doi:10.1007/978-3-319-72751-6_13
fatcat:eeujnv7zqzgv3g7n2f45yvx4qq
Fast Collisionless Pattern Formation by Anonymous, Position-Aware Robots
[chapter]
2014
Lecture Notes in Computer Science
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Each robot r knows its position pr ∈ Z 2 . In addition, each robot knows the connected pattern F to be formed. ...
First we consider a helpful intermediate problem -we call it the Lemmings problem -where collision at one single point g, known to all robots, is allowed and the goal is that all robots gather at g. ...
[7] considered the gathering problem for few fat robots, where the robots are modeled by unit disks. ...
doi:10.1007/978-3-319-14472-6_17
fatcat:npzdtcmvbrbm5gloznjmo7dfua
4-D body posture in sagittal plane for care-receiver patient can be estimated by using only two low-reolution tactile sensors mounted on robot arms
2014
2014 Second RSI/ISM International Conference on Robotics and Mechatronics (ICRoM)
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In order to contribute in a more convenient transfer of the mobility impaired patients for both patients and caregivers, a two-armed nursing-care assistant robot for transferring patients between bed and ...
time with respect to the robot control cycle (less than 10 milliseconds). ...
In order to contribute in a more convenient and efficient transfer of mobility week or impaired patients, while reducing the nursing burden and its associated costs, a nursing-care assistant robot with ...
doi:10.1109/icrom.2014.6990982
fatcat:dhewlp4buvd4nbts3qvwi6ci3e
Robotic Trachelectomy After Supracervical Hysterectomy for Benign Gynecologic Disease
2016
Journal of the Society of Laparoendoscopic Surgeons
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In 10 of 11 patients, the symptoms leading to robotic trachelectomy were the same as those leading to supracervical hysterectomy. ...
The objective of this study was to evaluate the efficacy of robotic trachelectomy after a previous supracervical hysterectomy. ...
Because the bladder was often scarred over the anterior aspect of the cervical stump, we performed retrograde filling of the bladder with irrigation fluid, to ascertain the dissection plane, and mobilized ...
doi:10.4293/jsls.2016.00027
pmid:27493470
pmcid:PMC4949354
fatcat:efrdi46crbcvlgc7tfd2nep4wq
Preventing and Monitoring Work-Related Diseases in Firefighters: A Literature Review on Sensor-Based Systems and Future Perspectives in Robotic Devices
2021
International Journal of Environmental Research and Public Health
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In addition, the advent of robotics can be also exploited in order to reduce work-related disorders. ...
In recent years, the necessity to prevent work-related diseases has led to the use of sensor-based systems to measure important features during working activities. ...
Data Availability Statement: All relevant data are within the manuscript.
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/ijerph18189723
pmid:34574646
pmcid:PMC8469039
fatcat:v266zbwzujfpppnrne3tsqj7dm
A Position-Adjustable Multi-Point Synchronizing Biopsy Tool for Intratumor Heterogeneity: A Proof-of-Principle Study
2020
IEEE Access
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Liu for their support on some mechanical parts and the experiments in this study, and gratefully acknowledge the insightful and very constructive comments from the anonymous reviewers. ...
ACKNOWLEDGMENT The authors would like to thank Associate Professor J. Wang and W. ...
In the following step, a few spoons are fixed by a set of fixed rotational joint bars at the desired positions. ...
doi:10.1109/access.2020.2974699
fatcat:hjb6qfelgbc6fcgjltzaw3joeu
Cognitive assisted living ambient system: a survey
2015
Digital Communications and Networks
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The paper provides a review of research background and technologies of AAL. ...
The demographic change towards an aging population is creating a significant impact and introducing drastic challenges to our society. ...
The COALAS project has been selected in the context of the INTERREG IVA France (Channel) -England European cross-border co-operation programme, which is co-financed by the ERDF. ...
doi:10.1016/j.dcan.2015.10.003
fatcat:lavg35uzpveelg4ddlvii7ftky
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