Petri Net Approach of Collision Prevention Supervisor Design in Port Transport System

Modern port terminals are equipped with various localtransport systems, which have the main task to transport cargobetween local storehouses and transport resources (ships,trains, trucks) in the fastest and most efficient way, and at thelowest possible cost. These local transport systems consist off...

Full description

Bibliographic Details
Main Authors: Danko Kezić, Igor Vujović, Anita Gudelj
Format: Article
Language:English
Published: University of Zagreb, Faculty of Transport and Traffic Sciences 2007-09-01
Series:Promet (Zagreb)
Subjects:
AGV
Online Access:http://www.fpz.unizg.hr/traffic/index.php/PROMTT/article/view/961
id doaj-62918fe5fe884550b3393daaef528f8a
record_format Article
spelling doaj-62918fe5fe884550b3393daaef528f8a2020-11-24T21:42:56ZengUniversity of Zagreb, Faculty of Transport and Traffic SciencesPromet (Zagreb)0353-53201848-40692007-09-0119526927510.7307/ptt.v19i5.961815Petri Net Approach of Collision Prevention Supervisor Design in Port Transport SystemDanko KezićIgor VujovićAnita GudeljModern port terminals are equipped with various localtransport systems, which have the main task to transport cargobetween local storehouses and transport resources (ships,trains, trucks) in the fastest and most efficient way, and at thelowest possible cost. These local transport systems consist offully automated transport units (AGV- automatic guided vehicle)which are controlled by the computer system. The portcomputer system controls the fully automated transport units inthe way to avoid possible deadlocks and collisions betweenthem. However, beside the fully automated local transportunits, there are human operated transport units (fork-lifttrucks, cranes etc.) which cross the path oftheAGVfrom timeto time. The collision of human operated transp011 unit andA GV is possible due to human inattention. To solve this problem,it is necesswy to design a supe1vismy control system thatcoordinates and controls both human driven transport unit andA G V In other words, the human-machine interactions need tobe supen·ised. The supen•ising system can be realized in the waythat the port terminal is divided into zones. Vehicle movementsare supen•ised by a video system which detects the moving ofparticular l'ehicles as a discrete event. Based on detected events,dangerous moving of certain vehicles is blocked by the supe1visi11gsystem. The paper considers the design of collision preventionsupen•isor by using discrete event dynamic themy. The portterminal is modeled by using ordi1za1y Petri nets. The design ofcollision prevention supe1visor is cmTied out by using the P-inl'ariantmethod. The verification of the supervisor is done bycomputer simulation.http://www.fpz.unizg.hr/traffic/index.php/PROMTT/article/view/961Petri netsAGVcollision prevention supe1visorhuman-machine interaction
collection DOAJ
language English
format Article
sources DOAJ
author Danko Kezić
Igor Vujović
Anita Gudelj
spellingShingle Danko Kezić
Igor Vujović
Anita Gudelj
Petri Net Approach of Collision Prevention Supervisor Design in Port Transport System
Promet (Zagreb)
Petri nets
AGV
collision prevention supe1visor
human-machine interaction
author_facet Danko Kezić
Igor Vujović
Anita Gudelj
author_sort Danko Kezić
title Petri Net Approach of Collision Prevention Supervisor Design in Port Transport System
title_short Petri Net Approach of Collision Prevention Supervisor Design in Port Transport System
title_full Petri Net Approach of Collision Prevention Supervisor Design in Port Transport System
title_fullStr Petri Net Approach of Collision Prevention Supervisor Design in Port Transport System
title_full_unstemmed Petri Net Approach of Collision Prevention Supervisor Design in Port Transport System
title_sort petri net approach of collision prevention supervisor design in port transport system
publisher University of Zagreb, Faculty of Transport and Traffic Sciences
series Promet (Zagreb)
issn 0353-5320
1848-4069
publishDate 2007-09-01
description Modern port terminals are equipped with various localtransport systems, which have the main task to transport cargobetween local storehouses and transport resources (ships,trains, trucks) in the fastest and most efficient way, and at thelowest possible cost. These local transport systems consist offully automated transport units (AGV- automatic guided vehicle)which are controlled by the computer system. The portcomputer system controls the fully automated transport units inthe way to avoid possible deadlocks and collisions betweenthem. However, beside the fully automated local transportunits, there are human operated transport units (fork-lifttrucks, cranes etc.) which cross the path oftheAGVfrom timeto time. The collision of human operated transp011 unit andA GV is possible due to human inattention. To solve this problem,it is necesswy to design a supe1vismy control system thatcoordinates and controls both human driven transport unit andA G V In other words, the human-machine interactions need tobe supen·ised. The supen•ising system can be realized in the waythat the port terminal is divided into zones. Vehicle movementsare supen•ised by a video system which detects the moving ofparticular l'ehicles as a discrete event. Based on detected events,dangerous moving of certain vehicles is blocked by the supe1visi11gsystem. The paper considers the design of collision preventionsupen•isor by using discrete event dynamic themy. The portterminal is modeled by using ordi1za1y Petri nets. The design ofcollision prevention supe1visor is cmTied out by using the P-inl'ariantmethod. The verification of the supervisor is done bycomputer simulation.
topic Petri nets
AGV
collision prevention supe1visor
human-machine interaction
url http://www.fpz.unizg.hr/traffic/index.php/PROMTT/article/view/961
work_keys_str_mv AT dankokezic petrinetapproachofcollisionpreventionsupervisordesigninporttransportsystem
AT igorvujovic petrinetapproachofcollisionpreventionsupervisordesigninporttransportsystem
AT anitagudelj petrinetapproachofcollisionpreventionsupervisordesigninporttransportsystem
_version_ 1725916317702160384