Download or read book Optimal Supervisory Control of Automated Manufacturing Systems written by Yufeng Chen and published by CRC Press. This book was released on 2013-01-23 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph presents the state-of-the-art developments in the design of behaviorally and structurally optimal livenessen-forcing Petri net supervisors with computationally tractable approaches. It details optimal supervisory control problems arising in automated production systems and outlines a methodology to achieve the optimality purposes of

Download or read book Optimal Supervisory Control of Automated Manufacturing Systems written by Yufeng Chen and published by CRC Press. This book was released on 2013-01-23 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph presents the state-of-the-art developments in the design of behaviorally and structurally optimal livenessen-forcing Petri net supervisors with computationally tractable approaches. It details optimal supervisory control problems arising in automated production systems and outlines a methodology to achieve the optimality purposes of deadlock prevention via converting a variety of problems under consideration into integer linear programming models. The book includes a reference bibliography at the end of each chapter and a complete index.

Download or read book Real time Supervisory Control of Automated Manufacturing Systems written by Bertil Axel Brandin and published by . This book was released on 1993 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Supervisory Control and Scheduling of Resource Allocation Systems written by Bo Huang and published by John Wiley & Sons. This book was released on 2020-06-29 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents strategies with reachability graph analysis for optimizing resource allocation systems Supervisory Control and Scheduling of Resource Allocation Systems offers an important guide to Petri net (PN) models and methods for supervisory control and system scheduling of resource allocation systems (RASs). Resource allocation systems are common in automated manufacturing systems, project management systems, cloud data centers, and software engineering systems. The authors—two experts on the topic—present a definition, techniques, models, and state-of-the art applications of supervisory control and scheduling problems. The book introduces the basic concepts and research background on resource allocation systems and Petri nets. The authors then focus on the deadlock-free supervisor synthesis for RASs using Petri nets. The book also investigates the heuristic scheduling of RASs based on timed Petri nets. Conclusions and open problems are provided in the last section of the book. This important book: Includes multiple methods for supervisory control and scheduling with reachability graphs, and provides illustrative examples Reveals how to accelerate the supervisory controller design and system scheduling of RASs based on PN reachability graphs, with optimal or near-optimal results Highlights both solution quality and computational speed in RAS deadlock handling and system scheduling Written for researchers, engineers, scientists, and professionals in system planning and control, engineering, operation, and management, Supervisory Control and Scheduling of Resource Allocation Systems provides an essential guide to the supervisory control and scheduling of resource allocation systems (RASs) using Petri net reachability graphs, which allow for multiple resource acquisitions and flexible routings.

Download or read book Optimal Supervisory Control of Flexible Manufacturing Systems written by Yufeng Chen and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reachability graph analysis is an important technique for deadlockcontrol, which always suffers from a state explosion problem since it requires togenerate all or a part of reachable markings.Based on this technique, an optimal or suboptimal supervisor with high behavioralpermissiveness can always be achieved. This thesis focuses on designing liveness enforcing Petri net supervisors for FMSs by considering their behavioralpermissiveness, supervisory structure, and computationnal complexity.The following research contributions are made in this thesis.1. The design of a maximally permissive liveness-enforcing supervisor for an FMSis proposed by solving integer linear programming problems (ILPPs).2. Structural complexity is also an important issue for a maximally permissivePetri net supervisor. A deadlock prevention policy for FMSs is proposed, which canobtain a maximally permissive liveness-enforcing Petri net supervisor while thenumber of control places is compressed.3. In order to overcome the computational complexity problem in MCPP and ensurethat the controlled system is maximally permissive with a simple structure, wedevelop an iterative deadlock prevention policy and a modified version.4. We consider the hardware and software costs in the stage of controlimplementation of a deadlock prevention policy, aiming to obtain a maximallypermissive Petri net supervisor with the lowest implementation cost. A supervisorconsists of a set of control places and the arcs connecting control places totransitions. We assign an implementation cost for each control place and controland observation costs for each transition. Based on reachability graph analysis,maximal permissiveness can be achieved by designing place invariants that prohibitall FBMs but no legal markings.5. Self-loops are used to design maximally permissive supervisors. A self-loop ina Petri net cannot be mathematically represented by its incidence matrix. Wepresent a mathematical method to design a maximally permissive Petri netsupervisor that is expressed by a set of control places with self-loops. A controlplace with a self-loop can be represented by a constraint and a selfloopassociated with a transition whose firing may lead to an illegal marking.

Download or read book Supervisory Control and Scheduling of Resource Allocation Systems written by Bo Huang and published by John Wiley & Sons. This book was released on 2020-06-29 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents strategies with reachability graph analysis for optimizing resource allocation systems Supervisory Control and Scheduling of Resource Allocation Systems offers an important guide to Petri net (PN) models and methods for supervisory control and system scheduling of resource allocation systems (RASs). Resource allocation systems are common in automated manufacturing systems, project management systems, cloud data centers, and software engineering systems. The authors—two experts on the topic—present a definition, techniques, models, and state-of-the art applications of supervisory control and scheduling problems. The book introduces the basic concepts and research background on resource allocation systems and Petri nets. The authors then focus on the deadlock-free supervisor synthesis for RASs using Petri nets. The book also investigates the heuristic scheduling of RASs based on timed Petri nets. Conclusions and open problems are provided in the last section of the book. This important book: Includes multiple methods for supervisory control and scheduling with reachability graphs, and provides illustrative examples Reveals how to accelerate the supervisory controller design and system scheduling of RASs based on PN reachability graphs, with optimal or near-optimal results Highlights both solution quality and computational speed in RAS deadlock handling and system scheduling Written for researchers, engineers, scientists, and professionals in system planning and control, engineering, operation, and management, Supervisory Control and Scheduling of Resource Allocation Systems provides an essential guide to the supervisory control and scheduling of resource allocation systems (RASs) using Petri net reachability graphs, which allow for multiple resource acquisitions and flexible routings.

Download or read book Control and Dynamic Systems V46 Manufacturing and Automation Systems Techniques and Technologies written by C.T. Leonides and published by Academic Press. This book was released on 2012-12-02 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Control and Dynamic Systems: Advances in Theory and Applications, Volume 46: Manufacturing and Automation Systems: Techniques and Technologies, Part 2 of 5 covers the significant advances and issues on the utilization of techniques and technologies in the manufacturing industries. This volume is divided into nine chapters and starts with the essential issue of software in manufacturing systems, particularly the aspects of the control software that are active in the time-critical or real time portions of the machine's operation. The succeeding chapters deal with the interactions between material-handling systems and other components of manufacturing systems; the principles of flexible manufacturing systems; the various views on the contributions of mechatronics; and the techniques for machine layout optimization in manufacturing and automation systems. These topics are followed by discussions of the application of a real-time control system to address issues of safety, productivity advances, and production cost reductions. Other chapters consider the influence of human supervisory control of predominantly automated manufacturing processes and the techniques for the manufacturing systems integration. The final chapter examines the major importance of the assembly line balancing to manufacturing systems. This book is of great value to process and mechanical engineers, as well as process control workers and researchers.

Download or read book Condition based Robust Supervisory Control for Automated Unreliable Manufacturing Systems written by Abdullateef H. Bashiri and published by . This book was released on 2016 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the course of recent research history, the emphasis of previous studies was to design supervisory controllers that can solve any deadlock issue in automated manufacturing systems (AMSs). The majority of previous research studies assume that allocated resources do not fail, while the minority of work has dealt with unreliable resources in the class of AMSs. In this research, we focus our work on avoiding deadlocks in AMSs that have a single unreliable resource using condition-based robust supervisory controller for automated unreliable manufacturing systems. The robust supervisory controller addresses in this research avoids deadlocks and at the same time imposes less restrictive constraints on the system, so more admissible states are allowed into the system. To increase the permissiveness in AMSs, we divided the system into three states (failure-free, k-steps away from failure, and failure states) which are besides between states transition policies together compose the Condition-Based policy (CB2) and by doing so, high flexibility and permissiveness policy can be gained over the original one (RO2). Specifically, first and third states' policies consist of a conjunction of two constraint sets that is similar to the one developed in Wang, Chew, Lawley (2008). However, the resources ordering in this paper is based on two new regions (region of sharing (ROS) and region of non-sharing (RNS)) that differs than what introduces in (RO2). The second state's policy which is the transition state (k-steps to fail state) is our contribution, that is, a combination between the Transition Banker's Algorithm (TBA) and a conjunction of two constraint sets such that addresses in [49]. Furthermore, a great deal of work is dedicated toward the transition from a state to another to guarantee a deadlock-free and safe transition system. We obtained results from experimental simulation design to compare system performance under CB2 and RO2. The result ended up that CB2 observes increasing in the total produced part-types and the non-failure dependent parts in two different systems. However, CB2 indicates decreasing in the production rate of failure dependent parts. Thus, if the concern is to increase the number of produce FD parts in the system RO2 is the best choice. Generally, CB2 increases the permissiveness and reduces the restrictions in AMSs when the systems of interest are single-unit resource allocation systems.

Download or read book Optimal Design and Management of Automated Manufacturing Systems written by Jack Scott Cook and published by . This book was released on 1993 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Supervisory Control of Discrete Event Systems written by W. Murray Wonham and published by Springer. This book was released on 2018-08-17 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows how supervisory control theory (SCT) supports the formulation of various control problems of standard types, like the synthesis of controlled dynamic invariants by state feedback, and the resolution of such problems in terms of naturally definable control-theoretic concepts and properties, like reachability, controllability and observability. It exploits a simple, abstract model of controlled discrete-event systems (DES) that has proved to be tractable, appealing to control specialists, and expressive of a range of control-theoretic ideas. It allows readers to choose between automaton-based and dually language-based forms of SCT, depending on whether their preference is for an internal-structural or external-behavioral description of the problem. The monograph begins with two chapters on algebraic and linguistic preliminaries and the fundamental concepts and results of SCT are introduced. To handle complexity caused by system scale, architectural approaches—the horizontal modularity of decentralized and distributed supervision and the vertical modularity of hierarchical supervision—are introduced. Supervisory control under partial observation and state-based supervisory control are also addressed; in the latter, a vector DES model that exploits internal regularity of algebraic structure is proposed. Finally SCT is generalized to deal with timed DES by incorporating temporal features in addition to logical ones. Researchers and graduate students working with the control of discrete-event systems or who are interested in the development of supervisory control methods will find this book an invaluable aid in their studies. The text will also be of assistance to researchers in manufacturing, logistics, communications and transportation, areas which provide plentiful examples of the class of systems being discussed.

Download or read book Deadlock Resolution in Automated Manufacturing Systems written by ZhiWu Li and published by Springer Science & Business Media. This book was released on 2009-03-04 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deadlock problems in flexible manufacturing systems (FMS) have received more and more attention in the last two decades. Petri nets are one of the more promising mathematical tools for tackling deadlocks in various resource allocation systems. In a system modeled with Petri nets, siphons are tied to the occurrence of deadlock states as a structural object. The book systematically introduces the novel theory of siphons, traps, and elementary siphons of Petri nets as well as the deadlock control strategies for FMS developed from it. Deadlock prevention methods are examined comparatively. The many FMS examples presented to demonstrate the concepts and results of this book range from the simple to the complex. Importantly, to inspire and motive the reader’s interest in further research, a number of interesting and open problems in this area are proposed at the end of each chapter.

Download or read book Controlling Automated Manufacturing Systems written by P.J. O'Grady and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master production scheduling II 60 On-line scheduling 65 Specific data requirements 69 Mailbox approaches 70 Conclusion 72 Chapter 7: Cell Level Control 75 Introduction 75 CCS classification 77 What is a cell? 78 CCS operational modes 80 Conclusion 86 Chapter 8: Equipment Level Control 89 Introduction 89 What is meant by equipment? 90 Equipment level control structure 92 Conclusion 94 Chapter 9: Conclusion and Future Trends 95 Overall production planning and control functions 98 Future trends 100 Conclusion 102 Appendix I: Master Production Scheduling II 103 References 107 Index 109 Preface This book is intended as an introduction to production planning and control of automated manufacturing systems. As such, it links together two diverse fields of interest: in the area of production planning and control there is a large body of work completed in analytical models, computer structures and overall systems; equally, for the hardware and detailed control aspects of the equipment used (for example, NC machines, robots, etc), comprehensive studies have also been completed. To cover each area fully would result in a work of several volumes. Instead, this book stresses the important elements of both areas that are vital to effective production planning and control of the whole automated manufacturing system.

Download or read book Supervisory Control in Automated Manufacturing Processes written by T. Govindaraj and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 4th International Conference on Numerical Modelling in Engineering written by Magd Abdel Wahab and published by Springer Nature. This book was released on 2022-03-28 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers outstanding papers on numerical modeling in Mechanical Engineering (Volume 2) as part of the 2-volume proceedings of the 4th International Conference on Numerical Modeling in Engineering (NME 2021), which was held in Ghent, Belgium, on 24-25 August 2021. The overall objective of the conference was to bring together international scientists and engineers in academia and industry from fields related to advanced numerical techniques, such as the finite element method (FEM), boundary element method (BEM), isogeometric analysis (IGA), etc., and their applications to a wide range of engineering disciplines. This book addresses numerical simulations of various mechanical and materials engineering industrial applications such as aerospace applications, acoustic analysis, bio-mechanical applications, contact problems and wear, heat transfer analysis, vibration and dynamics, transient analysis, nonlinear analysis, composite materials, polymers, metal alloys, fracture mechanics, fatigue of materials, creep, mechanical behavior, micro-structure, phase transformation, and crystal plasticity.

Download or read book Hierarchical Control and Real time Optimization in Automated Manufacturing Systems written by Richard Henry Frymuth Jackson and published by . This book was released on 1986 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Formal Methods in Manufacturing written by Javier Campos and published by CRC Press. This book was released on 2018-09-03 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: Illustrated with real-life manufacturing examples, Formal Methods in Manufacturing provides state-of-the-art solutions to common problems in manufacturing systems. Assuming some knowledge of discrete event systems theory, the book first delivers a detailed introduction to the most important formalisms used for the modeling, analysis, and control of manufacturing systems (including Petri nets, automata, and max-plus algebra), explaining the advantages of each formal method. It then employs the different formalisms to solve specific problems taken from today’s industrial world, such as modeling and simulation, supervisory control (including deadlock prevention) in a distributed and/or decentralized environment, performance evaluation (including scheduling and optimization), fault diagnosis and diagnosability analysis, and reconfiguration. Containing chapters written by leading experts in their respective fields, Formal Methods in Manufacturing helps researchers and application engineers handle fundamental principles and deal with typical quality goals in the design and operation of manufacturing systems.

Download or read book Control and Dynamic Systems V47 Manufacturing and Automation Systems Techniques and Technologies written by C.T. Leonides and published by Elsevier. This book was released on 2012-12-02 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Control and Dynamic Systems: Advances in Theory and Applications, Volume 47: Manufacturing and Automation Systems: Techniques and Technologies, Part 3 of 5 deals with techniques and technologies in manufacturing and automation systems. This book discusses techniques in modeling and control policies for production networks; effective planning and control of day-to-day operations; evaluation of automated manufacturing systems; the use of Petri Nets in modeling, control and performance analysis of automated manufacturing systems; and concurrent engineering and evaluation of concurrency in engineering design. The final chapter discusses the algorithm for solving allocation problems. This book will provide a uniquely significant reference source for practitioners in the field who want a comprehensive source of techniques with significant applied implications.