Hybrid Petri Nets in Modeling the Packing Processes: Case Study
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2015, Vol 39, Issue 39
Abstract
In many cases, the packing processes are considered as hybrid systems, consisting of a set of workstations, where various components must be processed, and at least one flexible transport system used for loading and/or unloading operations. This paper is focused to a Hybrid Petri Nets approach for modeling and simulation the behavior of such systems, considered a hybrid dynamic structure, with both continuous and discrete components interacting. For heuristic representation of the model, several sequences and rules were however followed. For the case study, starting from the structure of the system, in order to achieve a primary topology of the model, a bottomup synthesis technique was used, which allowed us to obtain a basic version, consisting in several sub-models of related physical subsystems of the packing station. Aggregation of these partial models was made in accordance with the interactions of the physical elements of the whole system, laid down in the operation protocol. Hence, into model topology various elements characteristic to generalized Petri Nets were used, with inhibitor arcs and test arcs, mainly aiming to reduce the complexity of the whole model. The validation of the model was done through on-line simulation, in various scenarios, under the Visual Object Net++ tool, which offers multiples facilities for the analysis of behavioral properties in various real operating conditions of the real physical system. Starting on the modular structure of the whole model, consisting in several submodels of the same type, the authors obtained a multilevel architecture, using Object Petri Nets paradigm for representation and exploiting their analysis potential.
Authors and Affiliations
Mircea Adrian Drighiciu, Daniel Cristian Cismaru
Keywords
Related Articles
- EP ID EP159193
- DOI -
- Views 121
- Downloads 0
Modelling and Synthesis of Printed Circuit Boards Testing Systems based on Timed Hard Petri Nets
This paper presents a synthesis method for delay time evaluation in the printed circuit boards based on Timed Hard Petri Nets. For the specification and modeling of the delay time evaluation system, Timed Synchronous Pet...
Modelling of Transformer Windings and Computation of Very Fast Transient Over-Voltages
The main objective of this paper is represented by analysis and modeling of the transformer windings stressed by over-voltage with direct impact on voltage distribution across the winding. The authors considered both app...
Easy Design Procedure of PCB Inductors Using WEBENCH Coil Designer
This paper describes the use of WEBENCH Coil Designer for generating wireless power transfer PCB inductors for low and medium power portable systems without the need of complex calculations or complex layout design. This...
Influence of the Environmental Aspects on the Quality of the Activity of the Wastewater Treatment Plant from the Repairs Locomotives Industry
The aim of this paper is to identify an engineering method to study and to optimize the process of treating the wastewaters from the repairs locomotives industry in terms of quality, cost and environmental impact. The...
Analysis of the Phaseportrait for the Lü Dynamical System in a Particular Case
In the present paper it is started a qualitative analysis of the Lü dynamical system, using the appropiate tools of Hamilton-Poisson geometry and using the software for mathematics MAPLE 15. The Lü’s system arise from el...