Computing the k-resilience of a synchronized multi-robot system
Computing the k-resilience of a synchronized multi-robot system
复制标题
计算同步多机器人系统的 k-弹性
DOI:
10.1007/s10878-018-0297-3
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发表时间:
2018
影响因子:
1
通讯作者:
Lopez, Mario A.
中科院分区:
文献类型:
--
作者:
Bereg, Sergey;Caraballo, Luis-Evaristo;Díaz-Báñez, José-Miguel;Lopez, Mario A.
We study an optimization problem that arises in the design of covering strategies for multi-robot systems. Consider a team ofncooperating robots traveling along predetermined closed and disjoint trajectories. Each robot needs to periodically communicate information to nearby robots. At places where two trajectories are within range of each other, a communication link is established, allowing two robots to exchange information, provided they are “synchronized”, i.e., they visit the link at the same time. In this setting a communication graph is defined and a system of robots is calledsynchronizedif every pair of neighbors is synchronized. If one or more robots leave the system, then some trajectories are left unattended. To handle such cases in a synchronized system, when a live robot arrives to a communication link and detects the absence of the neighbor, it shifts to the neighboring trajectory to assume the unattended task. If enough robots leave, it may occur that a live robot enters a state ofstarvation, failing to permanently meet other robots during flight. To measure the tolerance of the system under this phenomenon we define thek-resilienceas the minimum number of robots whose removal may causeksurviving robots to enter a state of starvation. We show that the problem of computing thek-resilience is NP-hard ifkis part of the input, even if the communication graph is a tree. We propose algorithms to compute thek-resilience for constant values ofkin general communication graphs and show more efficient algorithms for systems whose communication graph is a tree.
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DOI:
10.1109/icra.2015.7139843
发表时间:
2015
期刊:
2015 IEEE International Conference on Robotics and Automation (ICRA)
影响因子:
--
作者:
J. Díaz;L. Caraballo;M. Lopez;S. Bereg;Iván Maza;A. Ollero
通讯作者:
A. Ollero
影响因子:
--
作者:
M. Goldberg
通讯作者:
M. Goldberg
DOI:
10.1007/978-1-4613-0295-7_15
发表时间:
2001
期刊:
--
影响因子:
--
作者:
L. G. Casado;I. García;P. Szabó;T. Csendes
通讯作者:
L. G. Casado;I. García;P. Szabó;T. Csendes
影响因子:
0.8
作者:
T. Cusick
通讯作者:
T. Cusick
影响因子:
3.3
作者:
D. Alejo;J. Díaz;J. A. Cobano;P. Pérez;A. Ollero
通讯作者:
A. Ollero