TY - GEN
T1 - Event sequence reconstruction in automated guided vehicle systems
AU - Qu, Yizhi
AU - Li, Lingxi
AU - Chen, Yaobin
AU - Dai, Yaping
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
KW - Petri nets
KW - asynchronous sensor observations
KW - state machine
KW - transition firing sequences
UR - http://www.scopus.com/inward/record.url?scp=84880422325&partnerID=8YFLogxK
U2 - 10.1109/ICVES.2010.5550933
DO - 10.1109/ICVES.2010.5550933
M3 - Conference contribution
AN - SCOPUS:84880422325
SN - 9781424471249
T3 - Proceedings of 2010 IEEE International Conference on Vehicular Electronics and Safety, ICVES 2010
SP - 106
EP - 109
BT - Proceedings of 2010 IEEE International Conference on Vehicular Electronics and Safety, ICVES 2010
T2 - 2010 IEEE International Conference on Vehicular Electronics and Safety, ICVES 2010
Y2 - 15 July 2010 through 17 July 2010
ER -