NDLI: Robust supervisory control policies for manufacturing systems with unreliable resources

Content Provider	IEEE Xplore Digital Library
Author	Lawley, M.A. Sulistyono, W.
Copyright Year	1989
Abstract	Manufacturing practitioners and researchers have recognized the need to develop effective supervisory controllers for automated manufacturing systems. One active area of research has been developing deadlock avoidance methods for these systems. Almost all work to date has assumed that allocated resources do not fail. In this paper, we consider deadlock and blocking problems in systems with unreliable resources. Our objective is to develop supervisory control policies that allocate resources so that the failure of any given resource does not propagate through blocking to effectively stall other portions of the system. In other words, when a resource fails, we want the system to automatically continue producing all part types that do not require the failed resource. To accomplish this, the supervisory controller must ensure safety for the original system while avoiding states that do not serve as feasible initial states for the reduced system when an unreliable resource fails. The policy must then ensure safety for the reduced system while avoiding states that do not serve as feasible initial states for the original system so that transition to normal operation is smooth when the failed resource is restored. This paper illustrates this class of problems through several examples, identifies properties that controllers must satisfy to deal effectively with these problems, and develops two polynomial control policies that satisfy these properties.
Starting Page	346
Ending Page	359
Page Count	14
File Size	423695
File Format	PDF
ISSN	1042296X
Volume Number	18
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robust control Supervisory control Manufacturing systems Automatic control Control systems System recovery Resource management Safety Manufacturing automation Polynomials
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in