Evacuation from a finite 2D square grid field by a metamorphic robotic system

Junya Nakamura, Sayaka Kamei, Yukiko Yamauchi

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

We consider evacuation from a finite two-dimensional (2D) square grid field by a metamorphic robotic system (MRS). An MRS is composed of anonymous memoryless modules. Each module of an MRS executes an identical distributed algorithm and moves autonomously while keeping the connectivity of modules. Since the modules are memoryless, an MRS utilizes its shape to remember the progress of execution. The number of available shapes that an MRS can form depends on the number of modules, which is thus an important complexity measure for a behavior of an MRS. In this paper, we investigate the minimum number of modules required to solve the evacuation problem with several conditions. First, we consider a rectangular field surrounded by walls with at least one exit and show that two modules are necessary and sufficient for evacuation from any rectangular field if the modules are equipped with a global compass, which allows the modules to have a common sense of direction. Then, we focus on the case where modules do not have a global compass and show that four (resp. seven) modules are necessary and sufficient for restricted (resp. any) initial states of an MRS. We also show that two modules are sufficient in the special case where an MRS is on a wall in an initial configuration. Finally, we extend these results to another type of fields, that is, mazes.

本文言語英語
ホスト出版物のタイトルProceedings - 2020 8th International Symposium on Computing and Networking, CANDAR 2020
出版社Institute of Electrical and Electronics Engineers Inc.
ページ69-78
ページ数10
ISBN(電子版)9781728182216
DOI
出版ステータス出版済み - 11 2020
イベント8th International Symposium on Computing and Networking, CANDAR 2020 - Virtual, Naha, 日本
継続期間: 11 24 202011 27 2020

出版物シリーズ

名前Proceedings - 2020 8th International Symposium on Computing and Networking, CANDAR 2020

会議

会議8th International Symposium on Computing and Networking, CANDAR 2020
国/地域日本
CityVirtual, Naha
Period11/24/2011/27/20

All Science Journal Classification (ASJC) codes

  • 人工知能
  • 計算理論と計算数学
  • コンピュータ ネットワークおよび通信
  • コンピュータ サイエンスの応用
  • ソフトウェア

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