2 edition of Automata-based scheduling and control of flexible manufacturing workcells found in the catalog.
Automata-based scheduling and control of flexible manufacturing workcells
Hamid Reza Golmakani
Written in English
Scheduling and control of Flexible Manufacturing Cells (FMCs) have been of continuing theoretical and practical importance to the operational-research and automatic-control communities, respectively. Petri Nets (PNs) and controlled-automata have been two commonly used techniques for FMC modeling and supervisory controller synthesis. However, although the literature contains a large number of PN-based scheduling methods, there have been no attempts to utilize automata theory for similar endeavors. This thesis is one of the first reported research efforts for using automata theory for simultaneous scheduling and control of FMCs.In order to verify the effectiveness of the proposed methodologies, a MS-Windows based software was developed to simulate the implementation of the methodologies for different FMC configurations. Numerous simulations clearly demonstrated that the proposed methodologies can control FMCs and improve their performances simultaneously.An automata-based supervisory controller ensures that the plant under supervision will behave deadlock-free (according to given specifications). However, it lacks decision-making ability. The overall research objective of this thesis, thus, is to develop automata-based methodology for synthesizing FMC controllers capable of monitoring, controlling, and making scheduling decisions such that they could control the flow of parts within the workcell, satisfy the deadlock-free requirements, and improve the FMC performance simultaneously.As proposed in this thesis, first, time-augmented automata are used for system modeling purposes. Supervisory-control theory is, then, used as the supervisor-synthesis method. The constructed supervisor, representing deadlock-free FMC behavior, is utilized to search for the optimized workcell behavior. For the above-mentioned three problems an A* based search methodology, a Non Linear Programming (NLP) modeling method, and an on-line beam-search based methodology are utilized, respectively.Three formal methodologies are proposed to solve three basic control and scheduling problems, respectively. The first problem deals with off-line scheduling for batch production. The second problem deals with continuous production, where parts, one by one, are continuously introduced into the workcell. It is assumed that only the probability of arrival of the incoming part is known in advance. The third problem deals with random-arrival production, where the controller has no a priori information about the arrival of parts and has to evaluate the state of the workcell and determine possible available alternative decisions in an on-line manner.
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The paper presents evolving cellular automata-based scheduling production. The models have been implemented and tested, and the examples have been illustrated. The software of this model, allows us to analyze the process of construction schedule for many variants reflecting a variety of combinations other factors. The results indicate that the proposed algorithm is an . Flexible Work Systems. Chapters 9 and 10 Week 5 and 6, Part I 11/25/ ISE (Course #) Typical Case Model Goal: Highest Quality, Lowest Cost, Shortest Leadtime. Value Stream Mapping. Flexible Work Systems. Standard Work JIT Total Productive Maintenance. SMED 5S. Heijunka Jidoka. 11/25/
JPB2 JPA JPA JPB2 JP B2 JP B2 JP B2 JP A JP A JP A JP A JP A JP A JP B2 JP B2 JP B2 Authority JP Japan Prior art keywords cpu machine peripheral set machines Prior art date Author: David Barral, バラール ダビッド. Automata-Based On-line Scheduling of Manufacturing Cells: Hamid R. Golmakani, J. K. Mills, Beno Benhabib: 14th International Conference on Flexible Automation and Intelligent Manufacturing FAIM: ۷: Deadlock-Free Optimal Routing in Flexible Manufacturing Cells via Supervisory Control Theory: Hamid R. Golmakani, J. K. Mills, Beno.
Free Training in Fanuc Programming The best way to learn about robotic programming is by doing. That's why RobotWorx puts the teach pendant in your hands before your robot even leaves the . Manufacturing Systems Control Design details a matrix-based approach to the real-time application of control in discrete-event systems and flexible manufacturing systems (FMS) in particular. The "and/or" algebra in which matrix operations are carried out enables fast and efficient calculations with a minimum of computing power.
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This paper presents a novel method for the scheduling and control of flexible manufacturing cells (FMCs). The approach employs automata, augmented by. On-line scheduling and control of flexible manufacturing cells using automata theory Article in International Journal of Computer Integrated Manufacturing 19(2).
The on-line control and scheduling of flexible manufacturing systems has been a major interest in the production research area since these systems first appeared. We argue that this approach is more flexible than the classical real-time scheduling framework based on periodic tasks, and allows composition of interfaces by language-theoretic operations.
We show that finite automata over infinite words offer analyzable representation and can capture many interesting interface specifications such as Cited by: Automata Based Interfaces for Control and Scheduling Abstract We propose the use of formal languages of infinite words over the alphabet of task identifiers as an interface between control designs and software implementations.
We argue that this approach is more flexible than the. An important consideration in the real-time supervisory control of flexible manufacturing systems is the resource failures.
These disturbances. Scheduling plays an important role in the production control in an FMS, which contains several real-time decisions, such as part type and machine selection . Since Montazeri et al.  had. Journal of Manufacturing Systems Vol. 16/No. 2 An Implementation Methodology for the Supervisory Control of Flexible Manufacturing Workcells S.C.
Lauzon, J.K. Mills, and B. Benhabib, University of Toronto, Toronto, Ontario, Canada Abstract The anticipated use of autonomous flexible manufactur- ing workcells in the near future has encouraged recent Cited by:discussed about scheduling of flexible manufacturing systems with partially grouped machines.
they solved the problem using two algorithms, one for simultaneously solving the two sub problems using rules for part selection and machine selection and the other algorithm using simulated annealing algorithm and dispatching rules. Pages () Download full issue. Previous vol/issue. Next vol/issue.
An implementation methodology for the supervisory control of flexible manufacturing workcells: S.C. Lauzon, J.K. Mills, B. Benhabib, v16, n2,pp91– Scheduling printed circuit board production systems using the two-level scheduling approach: Fu-Ren.
Pages () Download full issue. Previous vol/issue. Next vol/issue. An implementation methodology for the supervisory control of flexible manufacturing workcells. S.C. Lauzon, J.K.
Mills, B. Benhabib. Pages Download PDF. select article Scheduling printed circuit board production systems using the two-level scheduling. The problem of simultaneous scheduling of machines and vehicles in flexible manufacturing system (FMS) was addressed. A spreadsheet based genetic algorithm (GA) approach was presented to solve the problem.
A domain independent general purpose GA was used, which was an add-in to the spreadsheet software. An adaptation of the propritary GA Cited by: 1 Work Cells and Cellular Manufacturing Improving the fitness of the factory 2 Cellular Manufacturing v Concept of performing all of the necessary operations to make a component, subassembly, or finished product in a work Size: KB.
A Low Cost Control Structure for Flexible Production Lines with Multitask Workcells. to ensure a high quality of the products and to reduce the manufacturing time, flexible automation is necessary, which naturally leads to the CIM approach.
Pipre 4 pr••ente the re of this parallel production 11De, and its control re Author: Th. Borangiu, A. Hossu, Fl. Ionesou. Flow-type organization of production lines is often encountered in small and medium sized companies. In order to improve the through put, to ensure a high quality of the products and to reduce the manufacturing time, flexible automation is necessary, which Author: Th.
Borangiu, A. Hossu, Fl. Ionesou. Apporaches for scheduling a FMS system with AGV and robot was done by C. Anandaraman (). Sridhar and Rajendran addressed a GA for part family grouping and scheduling parts within part families in a flow-line-based manufacturing cell.
Shnits and Sinreich present the development of a multi-criteria control. Ramirez-Serrano, and B. Benhabib, “Supervisory control of reconfigurable flexible-manufacturing workcells-temporary addition of resources,” International Journal of Computer Integrated Manufacturing, vol.
16, no. 2 pp.Feb. Due to their increasing applicability in modern industry, flexible manufacturing systems (FMSs), their design, and their control have been studied extensively in the recent literature. One of the most important issues that has arisen in this context is the FMS scheduling problem.
This article is concerned with a new model of an FMS system, motivated by the Cited by: This work has been developed within the framework of agent- based decentralized scheduling for flexible manufacturing systems.
In this framework, all workcells comprising the manufacturing system, and the products to be generated, are. Reactive Scheduling in Real Time Production Control. Authors; Authors and affiliations Doty, K.L., and Navathe, S.,A structure-function-control paradigm for knowledge-based modeling and design of manufacturing workcells.
Journal ofArchitectures of expert systems for scheduling flexible manufacturing systems. Proc. IEEE Int Cited by:. We present a deterministic scheduling approach for flexible assembly lines and robotic workcells based on n-dimensional collision functions.
By collision functions, the different process plans which include parallel robot operations are correlated and coordinated. Feasible schedules only exist for zero correlation. Coordination parameters are the release time intervals for each .Scheduling of Flexible Manufacturing System using Genetic Algorithm (Multiobjective): A Review Navnikaa Rajan CSE Dept.
IMS Engineering College Srishti Jaiswal CSE Dept. IMS Engineering College Tanya Kalsi CSE Dept. IMS Engineering College Vijai Singh Assistant Professor IMS Engineering College ABSTRACT A flexible, integrated, computer.Hamid Reza Golmakani, James K. Mills, Beno Benhabib: On-line scheduling and control of flexible manufacturing cells using automata theory.
Int. J. Computer Integrated Manufacturing 19 (2): ().