An Affection-Based Dynamic Leader Selection Model for Formation Control in Multirobot Systems

Feng Li, Yongsheng Ding, Mengchu Zhou, Kuangrong Hao, Lei Chen

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

In this paper, a dynamic leader selection process of a multirobot system with leader-follower strategies is studied in terms of formation control. A fuzzy inference system is employed to evaluate the status of robots by means of their states. Based on the status, an affection-based model is proposed to trigger a leader selection module. Followers send out unsatisfied signals when they are disappointed at the current leader. The abashment value of the leader changes with its own status as well as the number of unsatisfied signals received from its followers. When its abashment value goes beyond a given threshold, a leader reselection process is triggered. Moreover, a swap-greedy algorithm is proposed to approximate the optimal solution for confirming the leader-follower relationship, which can be described as a combinatorial optimization problem to minimize the total travel distance of all the robots. Extensive simulation results demonstrate that the proposed model can improve the probability of a robot team escaping from local extreme points significantly, and even in the case of leader failure, the team can reselect a leader autonomously and keep moving toward the target.

Original languageEnglish (US)
Article number7534738
Pages (from-to)1217-1228
Number of pages12
JournalIEEE Transactions on Systems, Man, and Cybernetics: Systems
Volume47
Issue number7
DOIs
StatePublished - Jul 2017

All Science Journal Classification (ASJC) codes

  • Software
  • Control and Systems Engineering
  • Human-Computer Interaction
  • Computer Science Applications
  • Electrical and Electronic Engineering

Keywords

  • Affection model
  • formation control
  • leader selection
  • multirobot system (MRS)

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