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2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)最新文献

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Analysis and comparison of different interconnection solutions for switched Ethernet networks 交换式以太网不同互连解决方案的分析与比较
2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531) Pub Date : 2000-09-06 DOI: 10.1109/WFCS.2000.882553
L. L. Lo Bello, O. Mirabella
{"title":"Analysis and comparison of different interconnection solutions for switched Ethernet networks","authors":"L. L. Lo Bello, O. Mirabella","doi":"10.1109/WFCS.2000.882553","DOIUrl":"https://doi.org/10.1109/WFCS.2000.882553","url":null,"abstract":"Subdivision and segmentation of Ethernet networks is a widely used design strategy for medium-large LANs. By using switches it is possible to subdivide an Ethernet into several distinct segments, each with its own bandwidth only shared by local users. The paper proposes an approach to model a segment of an Ethernet network in a very concise way, so that it can be easily represented through a Petri net model and evaluated by simulation. Our approach makes it possible to examine and compare different interconnection solutions for switched Ethernet networks in order to identify the best one for various types of traffic, and it allows modularity and versatility in testing different topologies and network interconnections, without the need for re-defining the models of the different network components.","PeriodicalId":112914,"journal":{"name":"2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130146162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A new approach for Java in embedded networks 嵌入式网络中Java的一种新方法
2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531) Pub Date : 2000-09-06 DOI: 10.1109/WFCS.2000.882529
W. Kastner, C. Krugel
{"title":"A new approach for Java in embedded networks","authors":"W. Kastner, C. Krugel","doi":"10.1109/WFCS.2000.882529","DOIUrl":"https://doi.org/10.1109/WFCS.2000.882529","url":null,"abstract":"The article briefly introduces modern control networks and surveys severe problems one faces when porting a Java Virtual Machine (JVM) to embedded devices. Some possible solutions for those problems are presented, namely special purpose VMs, just-in-time (JIT) compilers or the use of compiled byte-code are evaluated. Finally, we assess a potential solution regarding a new approach for a Java embedded network that is currently under research and should be implemented in a future project.","PeriodicalId":112914,"journal":{"name":"2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122503319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Integrating inaccessibility in response time analysis of CAN networks CAN网络响应时间分析中的不可达性集成
2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531) Pub Date : 2000-09-06 DOI: 10.1109/WFCS.2000.882537
L. M. Pinho, F. Vasques, E. Tovar
{"title":"Integrating inaccessibility in response time analysis of CAN networks","authors":"L. M. Pinho, F. Vasques, E. Tovar","doi":"10.1109/WFCS.2000.882537","DOIUrl":"https://doi.org/10.1109/WFCS.2000.882537","url":null,"abstract":"A controller area network (CAN) is a field bus network suitable for small-scale distributed computer controlled systems, appropriate for transferring short real-time messages. Nevertheless, it must be understood that continuity of service is not fully guaranteed since it may be disturbed by temporary periods of network inaccessibility. Such temporary periods of network inaccessibility are integrated in the response time analysis of CAN networks. The achieved results emphasise that, in the presence of temporary periods of network inaccessibility, a CAN network is not able to provide different integrity levels to the supported applications, since errors in low priority messages interfere with the response time of higher priority message streams.","PeriodicalId":112914,"journal":{"name":"2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127160361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 42
Tool support for evaluating temporal characteristics of industrial protocols 用于评估工业协议时间特性的工具支持
2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531) Pub Date : 2000-09-06 DOI: 10.1109/WFCS.2000.882550
Carlos Eduardo Pereira, Leandro Buss Becker, Ronaldo Husemann, R. Wild, Marcelo Götz
{"title":"Tool support for evaluating temporal characteristics of industrial protocols","authors":"Carlos Eduardo Pereira, Leandro Buss Becker, Ronaldo Husemann, R. Wild, Marcelo Götz","doi":"10.1109/WFCS.2000.882550","DOIUrl":"https://doi.org/10.1109/WFCS.2000.882550","url":null,"abstract":"In fieldbus automation systems, the correctness of the real time behavior depends not only on the intra-device processing and process scheduling, but also on the inter-device communication that exchanges process variables information. The article presents a tool to evaluate temporal characteristics of industrial communication protocols. It can monitor runtime timing requirements of proposed communication, according to variable conditions affecting the communication, and present graphically time characteristics of the resulting validation. Two case studies, one evaluating the real time characteristics of the Foundation Fieldbus protocol and another one evaluating timing characteristics of the CSMA medium access protocol used are presented in order to validate the features of the presented tool.","PeriodicalId":112914,"journal":{"name":"2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127304945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Embedded Internet technology in process control devices 过程控制设备中的嵌入式Internet技术
2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531) Pub Date : 2000-09-06 DOI: 10.1109/WFCS.2000.882562
J. Szymanski
{"title":"Embedded Internet technology in process control devices","authors":"J. Szymanski","doi":"10.1109/WFCS.2000.882562","DOIUrl":"https://doi.org/10.1109/WFCS.2000.882562","url":null,"abstract":"This paper describes the rationale and an environment of an experiment with control system architecture. This experiment led to the development of a technology, which enhances the control system architectures, and especially fieldbus based parts of these architectures, with the potential of Internet compatible processing. The account outlines the design of embedded web servers. It presents the context in which the embedded web servers are usually implemented as well as it provides a brief insight into embedded servers design process. The description is illustrated by a real life of a site implemented in a field device.","PeriodicalId":112914,"journal":{"name":"2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115777520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 50
Experience with distributed control systems in small printing machines 熟悉小型印刷机的分布式控制系统
2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531) Pub Date : 2000-09-06 DOI: 10.1109/WFCS.2000.882563
B. Plagemann
{"title":"Experience with distributed control systems in small printing machines","authors":"B. Plagemann","doi":"10.1109/WFCS.2000.882563","DOIUrl":"https://doi.org/10.1109/WFCS.2000.882563","url":null,"abstract":"A modular control system for Tampon printing machines communicating via industrial Ethernet and with an operating interface based on WEB technology is described. It demonstrates up to date possibilities of Ethernet based communication and WEB based operation interfaces.","PeriodicalId":112914,"journal":{"name":"2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125428350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrating reliability and timing analysis of CAN-based systems 集成can系统的可靠性和时序分析
2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531) Pub Date : 2000-09-06 DOI: 10.1109/WFCS.2000.882547
H. Hansson, Thomas Nolte, C. Norström, S. Punnekkat
{"title":"Integrating reliability and timing analysis of CAN-based systems","authors":"H. Hansson, Thomas Nolte, C. Norström, S. Punnekkat","doi":"10.1109/WFCS.2000.882547","DOIUrl":"https://doi.org/10.1109/WFCS.2000.882547","url":null,"abstract":"The paper outlines and illustrates a reliability analysis method developed with a focus on CAN based automotive systems. The method considers the effect of faults on schedulability analysis and its impact on the reliability estimation of the system, and attempts to integrate both to aid system developers. We illustrate the method by modeling a simple distributed antilock braking system, showing that even in cases where the worst-case analysis deem the system unschedulable, it may be proven to satisfy its timing requirements with a sufficiently high probability. From a reliability and cost perspective, the paper underlines the tradeoffs between timing guarantees, the level of hardware and software faults, and per-unit cost.","PeriodicalId":112914,"journal":{"name":"2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125465800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 112
On the analysis and simulation of temporal behaviour of real time distributed systems using PROFIBUS 基于PROFIBUS的实时分布式系统时序行为分析与仿真
2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531) Pub Date : 2000-09-06 DOI: 10.1109/WFCS.2000.882548
M. Marcos, A. López, D. Orive
{"title":"On the analysis and simulation of temporal behaviour of real time distributed systems using PROFIBUS","authors":"M. Marcos, A. López, D. Orive","doi":"10.1109/WFCS.2000.882548","DOIUrl":"https://doi.org/10.1109/WFCS.2000.882548","url":null,"abstract":"The design of hard real time systems involves complex issues because requirements of time, performance and security must be met. Many authors have developed methods in order to assure delays are bounded in the system, but there is not so much work that assures bounding delays in distributed real time systems over industrial fieldbuses. The article applies well-known scheduling theories and previous work in the field of response time analysis for PROFIBUS messages in the analysis and simulation of the overall distributed system. The first step was to get together previous studies (E. Tovar and F. Vasques, 1999). After that, a tool called BERTA (Basic Environment for Real Time Analysis) was designed in order to embody deduced algorithms for schedulability analysis as well as simulation of the distributed system. BERTA is presented in its very first version.","PeriodicalId":112914,"journal":{"name":"2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125960408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Distributed supervision and control of fieldbus-based industrial processes 基于现场总线的工业过程分布式监督和控制
2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531) Pub Date : 2000-09-06 DOI: 10.1109/WFCS.2000.882528
P. Martí, J. Aguado, F. Rolando, M. Velasco, P. Colomar, J. Fuertes
{"title":"Distributed supervision and control of fieldbus-based industrial processes","authors":"P. Martí, J. Aguado, F. Rolando, M. Velasco, P. Colomar, J. Fuertes","doi":"10.1109/WFCS.2000.882528","DOIUrl":"https://doi.org/10.1109/WFCS.2000.882528","url":null,"abstract":"This paper shows the application of an ongoing research project on the distributed control of processes. The objective of the project is to provide a framework to virtually model industrial plants, and to remotely, or even locally, supervise and control via Internet any industrial process by mapping it to a virtual plant. This framework provides, by using objected oriented methodologies, general patterns to industrial communication needs and to represent virtual industrial processes and their control. The application of this architecture on a fieldbus-based process allows the control and monitoring of such systems with independence from both their physical implementation and location.","PeriodicalId":112914,"journal":{"name":"2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126180786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
MUST: a quasi-round robin access scheme for CAN networks MUST: CAN网络的准轮询访问方案
2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531) Pub Date : 2000-09-06 DOI: 10.1109/WFCS.2000.882534
G. Cena, A. Valenzano
{"title":"MUST: a quasi-round robin access scheme for CAN networks","authors":"G. Cena, A. Valenzano","doi":"10.1109/WFCS.2000.882534","DOIUrl":"https://doi.org/10.1109/WFCS.2000.882534","url":null,"abstract":"Because of their low implementation costs, optimum responsiveness and widespread availability, controller area networks (CANs) are being more and more used today for supporting communications in real-time systems. However, under heavy traffic conditions, the access protocol of a CAN may exhibit a quite unfair behaviour, in particular when the control applications require that the same quality of service be ensured to a number of different objects. In this paper, a new technique is proposed, called MUST (medium utilisation state tracking), which is based on CANs and introduces few changes to the original protocol. Such a solution is able to ensure a very fair behaviour $which resembles the one obtained in token-based networks - while maintaining, at the same time, the reduced access delays typical of CANs when operating in low traffic conditions.","PeriodicalId":112914,"journal":{"name":"2000 IEEE International Workshop on Factory Communication Systems. Proceedings (Cat. No.00TH8531)","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114984294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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