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Control reconfiguration

About: Control reconfiguration is a research topic. Over the lifetime, 22423 publications have been published within this topic receiving 334217 citations.


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Journal ArticleDOI
01 Sep 2008
TL;DR: The paper describes the implementation and experimental validation of an ADACOR-based holonic manufacturing control system in a real flexible manufacturing system, using multiagent systems technology.
Abstract: Answering to the need to have innovative manufacturing control systems tailored to the current economical, technological, and customer trends, where dynamic and volatile environments prevail, adaptive holonic control architecture (ADACOR) aims to increase the agility and reconfigurability of the production system, contributing for the improvement of the enterprise competitiveness when it works in dynamic and volatile environments. The paper describes the implementation and experimental validation of an ADACOR-based holonic manufacturing control system in a real flexible manufacturing system, using multiagent systems technology. The results extracted from a set of experimental tests allowed to verify the correctness, applicability, and merits of the ADACOR concepts and also contribute to prove the applicability of multiagent systems in industrial environments.

76 citations

Proceedings ArticleDOI
01 Mar 1998
TL;DR: A fault-tolerance approach for FPGA-based systems that comes at a reduced cost in terms of design time, volume, and weight and capitalize on the unique reconfiguration capabilities of FPGAs to replace the affected tile with a functionally equivalent tile that does not rely on the faulty component.
Abstract: While system reliability is conventionally achieved through component replication, we have developed a fault-tolerance approach for FPGA-based systems that comes at a reduced cost in terms of design time, volume, and weight. We partition the physical design into a set of tiles. In response to a component failure, we capitalize on the unique reconfiguration capabilities of FPGAs and replace the affected tile with a functionally equivalent tile that does not rely on the faulty component. Unlike fixed structure fault-tolerance techniques for ASICs and microprocessors, this approach allows a single physical component to provide redundant backup for several types of components. Experimental results conducted on a subset of the MCNC benchmarks demonstrate a high level of realiability with low timing and hardware overhead.

76 citations

Proceedings Article
27 Aug 2001
TL;DR: Using simulations, the performance potential of the MOLEN ρµ-coded processor, which comprises hardwired and microcoded reconfigurable units, is established and it is indicated that the execution cycles of the superscalar machine can be reduced by 30% for the JPEG benchmark and by 32%" for the MPEG-2 benchmark using the proposed processor organization.
Abstract: In this paper, we introduce the MOLEN ρµ-coded processor which comprises hardwired and microcoded reconfigurable units At the expense of three new instructions, the proposed mechanisms allow instructions, entire pieces of code, or their combination to execute in a reconfigurable manner The reconfiguration of the hardware and the execution on the reconfigured hardware are performed by ρ-microcode (an extension of the classical microcode to allow reconfiguration capabilities) We include fixed and pageable microcode hardware features to extend the flexibility and improve the performance The scheme allows partial reconfiguration and includes caching mechanisms for nonfrequently used reconfiguration and execution microcode Using simulations, we establish the performance potential of the proposed processor assuming the JPEG and MPEG-2 benchmarks, the ALTERA APEX20K boards for the implementation, and a hardwired superscalar processor After implementation, cycle time estimations and normalization, our simulations indicate that the execution cycles of the superscalar machine can be reduced by 30% for the JPEG benchmark and by 32% for the MPEG-2 benchmark using the proposed processor organization

76 citations

Journal ArticleDOI
TL;DR: In this article, a new dynamical electrical array reconfiguration strategy on photovoltaic (PV) panels arrangement based on the connection of all PV panels on two parallel groups to reach the 24-V requested by the considered load and providing a maximum output current by connecting in series the two groups.

76 citations

02 Jan 1993
TL;DR: The main focus of this thesis is providing support for module participation during reconfiguration by defined an approach to capturing and restoring global data that is supported by the reconfigured primitives, and discovered a mechanism for capturing and restore the activation record stack that is machine-independent.
Abstract: Applications requiring concurrency or access to specialized hardware are naturally written as distributed applications, where each software component (module) can execute on a different machine, and modules interact via bindings. In order to make changes to very long-running applications or those that must be continuously available, we must dynamically change the application. Dynamic reconfiguration of a distributed application is the act of changing the configuration of the application as it executes. Examples of configuration changes are replacing a module, moving a module to another machine, and adding or removing modules from the application. The most challenging aspect of dynamic reconfiguration is that an application in execution has state information, both within the modules and within the communication channels between modules. This state information may need to be transferred from the old configuration to the new in order to reach an application state compatible with the new configuration. Thus, in addition to requiring a mechanism for changing the configuration during execution, dynamic reconfiguration requires that modules be able to divulge and install state information, and requires a mechanism for coordinating the communication during reconfiguration. Prior to this work, all systems supporting some form of dynamic reconfiguration have given the application programmer no support nor even guidelines for capturing and restoring an application's state information. The main focus of this thesis is providing support for module participation during reconfiguration. To this end, we have first defined an approach to capturing and restoring global data that is supported by the reconfiguration primitives, and second, discovered a mechanism for capturing and restoring the activation record stack that is machine-independent. Given reconfiguration points specified by the programmer, we automatically place the capture and restore blocks needed. This new technique has been implemented as part of the general framework we have developed to support dynamic reconfiguration of distributed applications. These reconfiguration capabilities were implemented on top of existing operating systems and compilers, requiring no modifications to either. They support dynamic reconfiguration for applications composed of mixed languages, communicating via message passing, running on heterogeneous distributed platforms.

76 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023784
20221,765
2021778
2020958
2019976
20181,060