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  2020, Vol. 33 Issue (4): 375-382    DOI: 10.16451/j.cnki.issn1003-6059.202004010
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Team Size Optimization for Distributed Patrol of Multi-robot Systems Based on Maximum Idle Time
ZHAO Yuntao1,2, LI Zonggang 1,2, DU Yajiang1,2
1.School of Mechanical Engineering, Lanzhou Jiaotong University, Lanzhou 730070
2.Robotics Institute, Lanzhou Jiaotong University, Lanzhou 730070

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Abstract  Aiming at multi-robot patrol problems, a distributed patrol algorithm based on estimated global maximum idleness(EGMI) is proposed to ensure that each patrol vertex can be visited by robots in a certain period of time. In the execution process of algorithm, the global average maximum idle time is estimated using the shared information by each robot, and the next target point to be visited is decided and selected by the robot at the current vertex combining the information collected. Then, performance of the multi-robot team during the patrol task is evaluated according to the global mean maximum idle time. Thus, the optimal number of robots required to complete the patrol task can be obtained. Simulation experiments show that EGMI produces a higher convergence speed and a lower global average maximum idle time. A better result of completing the multi-robot patrol task is achieved.
Key wordsMulti-robot System      Distributed Algorithm      Cooperative Patrol      Team Size      Robot Ope-rating System(ROS)     
Received: 27 September 2019     
ZTFLH: TP 242  
Fund:Supported by National Natural Science Foundation of China(No.61663020), Science and Research Project of Colleges in Gansu Province(No.2018D-10), 100-Talents Program of Lanzhou Jiaotong University(No.1520220305)
Corresponding Authors: LI Zonggang, Ph.D., professor. His research interests include intelligent bionic robot and multi-robot system cooperative control.   
About author:: ZHAO Yuntao, master student. His research interests include multi-robot system cooperative control.LI ZonggangCorresponding author, Ph.D., professor. His research interests include intelligent bionic robot and multi-robot system cooperative control.DU Yajiang, master, professor. His research inte-rests include electro-mechanical equipment detection and control, rail transit equipment automation and monitoring.
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ZHAO Yuntao
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ZHAO Yuntao,LI Zonggang,DU Yajiang. Team Size Optimization for Distributed Patrol of Multi-robot Systems Based on Maximum Idle Time[J]. , 2020, 33(4): 375-382.
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http://manu46.magtech.com.cn/Jweb_prai/EN/10.16451/j.cnki.issn1003-6059.202004010      OR     http://manu46.magtech.com.cn/Jweb_prai/EN/Y2020/V33/I4/375
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