Event sequence reconstruction in automated guided vehicle systems

Yizhi Qu, Lingxi Li*, Yaobin Chen, Yaping Dai

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper addresses the problem of reconstructing the event sequences in an automated guided vehicle system (AGVs) that is modeled as a Petri net. We assume that every location of vehicles in the AGVs (i.e., each place in the net) is equipped with a sensor that is able to detect the presence of vehicles. Furthermore, the observation of each sensor is asynchronous and each sensor only knows the ordering of its local observations due to the lack of global time. Our goal is to reconstruct the movement trajectories (transition firing sequences) of vehicles based on these asynchronous sensor observations. We develop an algorithm that is able to obtain these event sequences that are consistent with both sensor observations and the Petri net structure.

Original languageEnglish
Title of host publicationProceedings of 2010 IEEE International Conference on Vehicular Electronics and Safety, ICVES 2010
Pages106-109
Number of pages4
DOIs
Publication statusPublished - 2010
Event2010 IEEE International Conference on Vehicular Electronics and Safety, ICVES 2010 - Qingdao, China
Duration: 15 Jul 201017 Jul 2010

Publication series

NameProceedings of 2010 IEEE International Conference on Vehicular Electronics and Safety, ICVES 2010

Conference

Conference2010 IEEE International Conference on Vehicular Electronics and Safety, ICVES 2010
Country/TerritoryChina
CityQingdao
Period15/07/1017/07/10

Keywords

  • Petri nets
  • asynchronous sensor observations
  • state machine
  • transition firing sequences

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