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2008 IEEE International Workshop on Factory Communication Systems最新文献

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Network time synchronization in a safe automation network 网络时间同步在一个安全的自动化网络
2008 IEEE International Workshop on Factory Communication Systems Pub Date : 2008-05-21 DOI: 10.1109/WFCS.2008.4638717
T. Novak, B. Sevcik
{"title":"Network time synchronization in a safe automation network","authors":"T. Novak, B. Sevcik","doi":"10.1109/WFCS.2008.4638717","DOIUrl":"https://doi.org/10.1109/WFCS.2008.4638717","url":null,"abstract":"Today there is a great request of using automation networks in safety critical environments. Thus, such systems used in industrial and building automation have been enhanced with safety features derived from strict safety requirements specified in IEC 61508. One of the safety requirements to be met is the detection of hazardous events on the network such as the delay of a message. A safety measure to identify these hazardous events is the use of a timestamp within a safe protocol. However, a common time base among the nodes must be provided - by means of a network time synchronization mechanism. A centralized and decentralized approach was developed within the SafetyLon project. Realization of the concept and implementation in the producer/consumer model of SafetyLon is outlined.","PeriodicalId":352963,"journal":{"name":"2008 IEEE International Workshop on Factory Communication Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130687386","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
Performance analysis of slotted-CSMA with geometric distribution 几何分布开槽csma的性能分析
2008 IEEE International Workshop on Factory Communication Systems Pub Date : 2008-05-21 DOI: 10.1109/WFCS.2008.4638738
M. Miśkowicz
{"title":"Performance analysis of slotted-CSMA with geometric distribution","authors":"M. Miśkowicz","doi":"10.1109/WFCS.2008.4638738","DOIUrl":"https://doi.org/10.1109/WFCS.2008.4638738","url":null,"abstract":"The paper addresses the performance analysis of the fixed-window CSMA media access protocol with the geometric probability distribution of choosing the slot within the contention window. This scheme, called Sift, was initially proposed for large-scale wireless sensor networks. The primary benefit of geometric CSMA is high channel utilization for broad range of numbers of contending nodes. The goal of the present paper is to compute the standard performance measures of geometrically distributed slotted-CSMA both in the context of data-centric dense sensor networks and node-centric industrial automation networks. The stochastic analysis of the throughput/channel utilization, the collision rate and the mean access delay is carried out. Finally, the protocol performance is compared with some conventional CSMA schemes with uniform distribution.","PeriodicalId":352963,"journal":{"name":"2008 IEEE International Workshop on Factory Communication Systems","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130880290","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: 2
Influence of Token Rotation Time in multi master PROFIBUS networks 多主PROFIBUS网络中令牌旋转时间的影响
2008 IEEE International Workshop on Factory Communication Systems Pub Date : 2008-05-21 DOI: 10.1109/WFCS.2008.4638706
H. Kaghazchi, Hongxin Li, M. Ulrich
{"title":"Influence of Token Rotation Time in multi master PROFIBUS networks","authors":"H. Kaghazchi, Hongxin Li, M. Ulrich","doi":"10.1109/WFCS.2008.4638706","DOIUrl":"https://doi.org/10.1109/WFCS.2008.4638706","url":null,"abstract":"Increased use of fieldbus technology coupled with the increased confidence of the end user have resulted in some interesting applications using multi-master PROFIBUS networks. However the procedure for calculation of token target rotation time (TTR) for individual masters and subsequent influence on the bus cycle is not well understood or documented. This paper reports on the experimental work carried out on evaluation of the influence of TTR in multi-master PROFIBUS networks and master behavior. It concludes that implementation of TTR varies widely between the vendors and calls for more stringent testing and certification of master devices.","PeriodicalId":352963,"journal":{"name":"2008 IEEE International Workshop on Factory Communication Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131101108","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: 8
Automatic WLAN localization for industrial automation 用于工业自动化的自动WLAN定位
2008 IEEE International Workshop on Factory Communication Systems Pub Date : 2008-05-21 DOI: 10.1109/WFCS.2008.4638748
S. Ivanov, E. Nett, S. Schemmer
{"title":"Automatic WLAN localization for industrial automation","authors":"S. Ivanov, E. Nett, S. Schemmer","doi":"10.1109/WFCS.2008.4638748","DOIUrl":"https://doi.org/10.1109/WFCS.2008.4638748","url":null,"abstract":"The increasing WLAN deployment in industrial environments opens possibilities for location based services such as asset-tracking and workflow optimization. This paper presents our current research to develop a WLAN-localization system that fulfils the requirements of industrial automation: scalability and 5-10 m localization accuracy. Our envisaged system produces the training data automatically using automatic measurements, and model calibration. The suggested approach avoids the effort for walk-around and extensive manual measurements and is stable under environmental changes, while still achieving an accuracy equivalent to state-of-the art technology. Preliminary evaluation shows an average accuracy of 3.7 m (12ft).","PeriodicalId":352963,"journal":{"name":"2008 IEEE International Workshop on Factory Communication Systems","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133415226","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: 19
Challenges related to automation devices with inbuilt switches 与内置开关的自动化设备相关的挑战
2008 IEEE International Workshop on Factory Communication Systems Pub Date : 2008-05-21 DOI: 10.1109/WFCS.2008.4638715
J. Skaalvik, G. Prytz
{"title":"Challenges related to automation devices with inbuilt switches","authors":"J. Skaalvik, G. Prytz","doi":"10.1109/WFCS.2008.4638715","DOIUrl":"https://doi.org/10.1109/WFCS.2008.4638715","url":null,"abstract":"Automation devices are getting more complex by the integration of the Ethernet switch functionality into the devices. Manufacturers of industrial devices increasingly need to have deep knowledge about the basic standards associated with Ethernet in order to produce devices with predictable and stable behavior. This paper shows that the introduction of the Ethernet switch into automation devices is accompanied by a number of challenges associated with how the basic Ethernet technologies are implemented in devices. Some central challenges are discussed in detail and it is suggested how they should be handled in a professional way. It is clearly in the best interest of both the users and the manufacturers themselves that sufficient focus is put on these issues both to avoid error situations and to gain the optimal inertia from the introduction of Ethernet in automation.","PeriodicalId":352963,"journal":{"name":"2008 IEEE International Workshop on Factory Communication Systems","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128238958","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: 2
Designing a costumized Ethernet switch for safe hard real-time communication 设计了一种定制的以太网交换机，用于安全的硬实时通信
2008 IEEE International Workshop on Factory Communication Systems Pub Date : 2008-05-21 DOI: 10.1109/WFCS.2008.4638737
R. Santos, R. Marau, A. Oliveira, P. Pedreiras, L. Almeida
{"title":"Designing a costumized Ethernet switch for safe hard real-time communication","authors":"R. Santos, R. Marau, A. Oliveira, P. Pedreiras, L. Almeida","doi":"10.1109/WFCS.2008.4638737","DOIUrl":"https://doi.org/10.1109/WFCS.2008.4638737","url":null,"abstract":"The use of switched Ethernet for precise and safe real-time communication still suffers from undesired phenomena that range from the blocking caused by long non-preemptive frames to lack of protection against errors in the time domain and also couplings across virtual LANs and even priority levels via internal switch shared resources. In this paper we propose a novel switch architecture enhanced with resource reservation mechanisms, based on the Flexible Time-Triggered paradigm, which enforces strict service differentiation, blocking-free forwarding and timing errors confinement. Experimental results of a preliminary 4-port prototype based on an FPGA validate the desired properties and exhibit the potential of the enhanced Ethernet switch.","PeriodicalId":352963,"journal":{"name":"2008 IEEE International Workshop on Factory Communication Systems","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128535736","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: 18
Wireless wearable body area network supporting person centric health monitoring 支持以人为中心的健康监测的无线可穿戴身体区域网络
2008 IEEE International Workshop on Factory Communication Systems Pub Date : 2008-05-21 DOI: 10.1109/WFCS.2008.4638741
J. Gialelis, P. Foundas, A. Kalogeras, M. Georgoudakis, A. Kinalis, S. Koubias
{"title":"Wireless wearable body area network supporting person centric health monitoring","authors":"J. Gialelis, P. Foundas, A. Kalogeras, M. Georgoudakis, A. Kinalis, S. Koubias","doi":"10.1109/WFCS.2008.4638741","DOIUrl":"https://doi.org/10.1109/WFCS.2008.4638741","url":null,"abstract":"This paper describes a wearable health monitoring system integrated into a broad telemedical infrastructure allowing high-risk cardiovascular patients to closely monitor changes in their critical vital signs and get experts feedback to help maintain optimal health status. Consistent with the major challenge to provide good quality and reliable health care services to an increasing number of people utilizing limited financial and human resources, we propose a person-based health care system which consists of wearable Commercial of-the-shelf (COTS) nodes. These nodes, already used in the hospital environment, are capable of sensing and processing Blood-Oxygen, Blood-Pressure, Electrocardiographs (ECGs) and other vital signs and can be seamlessly integrated into Wireless Personal Area Networks (WPANs) for ubiquitous real time patient monitoring.","PeriodicalId":352963,"journal":{"name":"2008 IEEE International Workshop on Factory Communication Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129524433","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: 7
On the analysis of vulnerability chains in industrial networks 工业网络脆弱性链分析研究
2008 IEEE International Workshop on Factory Communication Systems Pub Date : 2008-05-21 DOI: 10.1109/WFCS.2008.4638740
M. Cheminod, I. Bertolotti, L. Durante, A. Valenzano
{"title":"On the analysis of vulnerability chains in industrial networks","authors":"M. Cheminod, I. Bertolotti, L. Durante, A. Valenzano","doi":"10.1109/WFCS.2008.4638740","DOIUrl":"https://doi.org/10.1109/WFCS.2008.4638740","url":null,"abstract":"The ever-increasing adoption at the factory field level of COTS (commercial off-the-shelf) hardware and software to host both real-time control tasks and a general-purpose operating system on the same machine is profoundly influencing the extent of threats that a factory network and computing infrastructure shall be prepared to deal with. In fact, these machines share with their office automation counterparts the same kinds of vulnerabilities and, being often interconnected to computers providing services to the public, are prone to cyber-attacks. In this paper, the architecture and use of a software tool able to analyse a factory network for vulnerabilities are described. Automating the analysis is of outmost importance because, as the complexity of the network grows, the problem rapidly becomes hard to tackle by hand due to the subtle interactions that may occur among apparently unrelated vulnerabilities.","PeriodicalId":352963,"journal":{"name":"2008 IEEE International Workshop on Factory Communication Systems","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129674259","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
UPnP in integrated home- and building networks 集成家庭和建筑网络中的UPnP
2008 IEEE International Workshop on Factory Communication Systems Pub Date : 2008-05-21 DOI: 10.1109/WFCS.2008.4638742
R. Kistler, S. Knauth, A. Klapproth
{"title":"UPnP in integrated home- and building networks","authors":"R. Kistler, S. Knauth, A. Klapproth","doi":"10.1109/WFCS.2008.4638742","DOIUrl":"https://doi.org/10.1109/WFCS.2008.4638742","url":null,"abstract":"Classic building automation systems have shown that networks of seamlessly integrated devices add true user value to commercial as well as residential building environments. They may positively influence factors such as energy efficiency, flexibility, security and comfort. But these benefits are not convincing enough, if the handling of such networks is complex and acquisition and engineering costs are high. Ideally, the integration of a new device happens without any effort spent on commissioning. Once integrated, devices and services must be easy to use for different users. The UPnP (Universal Plug and Play) protocol suite is a good choice to address these topics. It offers plug and play capabilities and comes up with a standardised interface to control devices. Itpsilas powerful, but it cannot fulfil all the requirements needed, especially in commercial buildings. This paper explores lacks and drawbacks of UPnP, discusses possible additions and introduces CARUSO, an architecture implementing the proposed mechanisms.","PeriodicalId":352963,"journal":{"name":"2008 IEEE International Workshop on Factory Communication Systems","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129713337","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: 8
Analysis of nested CRC with additional net data by means of stochastic automata for safety-critical communication 基于随机自动机的具有附加网络数据的嵌套CRC安全关键通信分析
2008 IEEE International Workshop on Factory Communication Systems Pub Date : 2008-05-21 DOI: 10.1109/WFCS.2008.4638714
F. Schiller, T. Mattes
{"title":"Analysis of nested CRC with additional net data by means of stochastic automata for safety-critical communication","authors":"F. Schiller, T. Mattes","doi":"10.1109/WFCS.2008.4638714","DOIUrl":"https://doi.org/10.1109/WFCS.2008.4638714","url":null,"abstract":"Cyclic Redundancy Check (CRC) is an approved coding method for error detection. It ensures a low probability of undetected errors, i.e. a low residual error probability, and is easy to implement. In industrial fieldbus systems, communication is usually executed through different layers. Each layer may have its specific check such that a nesting of checks exists. At present, this nesting is not included in the safety proof of systems. Hence, additional effort is made to achieve the required degree of safety which was probably on hand but could not be proven. The paper presents a method to involve the nesting in the calculation of the residual error probability by means of stochastic automata. This method helps to reduce the number of worst case assumptions in the overall safety proof and finally to reduce the necessary on-line efforts like the number of parity bits.","PeriodicalId":352963,"journal":{"name":"2008 IEEE International Workshop on Factory Communication Systems","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131390603","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
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