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2012 9th IEEE International Workshop on Factory Communication Systems最新文献

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Active delay variation control for improving fault tolerance in an avionics network 提高航电网络容错性的主动时延变分控制
2012 9th IEEE International Workshop on Factory Communication Systems Pub Date : 2012-05-21 DOI: 10.1109/WFCS.2012.6242558
Hairui Zhou, Jian Li, Yazhou Ren, Lina He, F. Hu
{"title":"Active delay variation control for improving fault tolerance in an avionics network","authors":"Hairui Zhou, Jian Li, Yazhou Ren, Lina He, F. Hu","doi":"10.1109/WFCS.2012.6242558","DOIUrl":"https://doi.org/10.1109/WFCS.2012.6242558","url":null,"abstract":"Avionics Full DupleX Switched Ethernet (AFDX) is a promising technique that can replace the existing avionics data buses, such as ARINC429 and MIL-STD-1553B. However, when the time interval between the reception of the original frame and its duplicate copy is too large, the redundancy management strategy may fail in some worst case scenarios. In this paper, an active delay variation control algorithm, AVC, is proposed to improve fault tolerance in an avionics network. Meanwhile, a novel local deadline assignment principle based on traffic load is presented. Compared with traditional mechanisms, AVC significantly decreases the delay difference between two redundant frames and improves the system reliability.","PeriodicalId":110610,"journal":{"name":"2012 9th IEEE International Workshop on Factory Communication Systems","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127660935","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
Fast and simple scheduling algorithm for PROFINET IRT networks 快速、简单的PROFINET IRT网络调度算法
2012 9th IEEE International Workshop on Factory Communication Systems Pub Date : 2012-05-21 DOI: 10.1109/WFCS.2012.6242556
Lukasz Wisniewski, M. Schumacher, J. Jasperneite, S. Schriegel
{"title":"Fast and simple scheduling algorithm for PROFINET IRT networks","authors":"Lukasz Wisniewski, M. Schumacher, J. Jasperneite, S. Schriegel","doi":"10.1109/WFCS.2012.6242556","DOIUrl":"https://doi.org/10.1109/WFCS.2012.6242556","url":null,"abstract":"Scheduling of the communication in industrial networks takes time. Since it has to be carried out every time a new network is brought to work, the time necessary to perform scheduling becomes a prominent factor. The approach presented in this paper, simplifies the scheduling problem of PROFINET IRT by resolving communication conflicts by utilization of the dynamic frame packing (DFP) mechanism.","PeriodicalId":110610,"journal":{"name":"2012 9th IEEE International Workshop on Factory Communication Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131000184","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: 23
The effects of relay behavior and position in wireless industrial networks 无线工业网络中中继行为和位置的影响
2012 9th IEEE International Workshop on Factory Communication Systems Pub Date : 2012-05-21 DOI: 10.1109/WFCS.2012.6242566
Svetlana Girs, E. Uhlemann, M. Björkman
{"title":"The effects of relay behavior and position in wireless industrial networks","authors":"Svetlana Girs, E. Uhlemann, M. Björkman","doi":"10.1109/WFCS.2012.6242566","DOIUrl":"https://doi.org/10.1109/WFCS.2012.6242566","url":null,"abstract":"In wireless industrial networks, providing reliable and timely communication is crucial. Previous research has shown that relaying can be used to achieve this goal. However, we have found that different types of wireless channels encountered in industrial environments affect the benefits as well as the best behavior and position of relay nodes. We consider two types of behavior: the relay node always retransmits or it only retransmits if it has obtained a correct copy of the packet. We evaluate different positions of the relay node by conducting simulations for two types of fading channels: with and without line of sight. The results clearly show that the benefits, the best behavior and position of a relay node depends on the wireless channel, whether or not the bit errors appear randomly or in bursts and also on the distance between the source and the final destination.","PeriodicalId":110610,"journal":{"name":"2012 9th IEEE International Workshop on Factory Communication Systems","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114084315","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: 17
Scripting language for distributed application design 分布式应用程序设计的脚本语言
2012 9th IEEE International Workshop on Factory Communication Systems Pub Date : 2012-05-21 DOI: 10.1109/WFCS.2012.6242550
M. Riedl, R. Schneckenhaus, Marco Meier
{"title":"Scripting language for distributed application design","authors":"M. Riedl, R. Schneckenhaus, Marco Meier","doi":"10.1109/WFCS.2012.6242550","DOIUrl":"https://doi.org/10.1109/WFCS.2012.6242550","url":null,"abstract":"Scripting Languages are often used in order to assist the user in repetitious tasks or when smaller program logics shall be expressed. Normally a scripting language is easier to learn than a programming language so that a wide range of professional developers and end users can use the language for its specific tasks. This paper introduces a specific, small scripting language supporting the deployment of programs as well as the test of distributed control systems. In contrast to existing scripting languages, the language comprises only the required set of instructions and is not too complex and therefore easy to maintain.","PeriodicalId":110610,"journal":{"name":"2012 9th IEEE International Workshop on Factory Communication Systems","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127570761","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
Deterministic real-time medium access for cognitive industrial radio networks 认知工业无线电网络的确定性实时介质接入
2012 9th IEEE International Workshop on Factory Communication Systems Pub Date : 2012-05-21 DOI: 10.1109/WFCS.2012.6242549
Kristina Kunert, M. Jonsson, U. Bilstrup
{"title":"Deterministic real-time medium access for cognitive industrial radio networks","authors":"Kristina Kunert, M. Jonsson, U. Bilstrup","doi":"10.1109/WFCS.2012.6242549","DOIUrl":"https://doi.org/10.1109/WFCS.2012.6242549","url":null,"abstract":"Industrial communication often has to work in an environment where other networks or radiation create different levels of interference for the data traffic. Additionally, industrial applications often demand predictable real-time performance of the network. One way of trying to utilise the available frequencies in an effective manner is to include cognitive functionality in the network. We present a medium access control protocol for a cognitive radio network, providing deterministic medium access for heterogeneous traffic and dynamic spectrum allocation. Spectrum sensing abilities in the nodes open up for the possibility of increasing successful data transmissions, and a real-time analysis framework provides upper-bounded medium access delay in order to guarantee timely treatment of hard real-time traffic.","PeriodicalId":110610,"journal":{"name":"2012 9th IEEE International Workshop on Factory Communication Systems","volume":"199 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124460032","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: 15
An efficient fixed-length encoding scheme for CAN 一种高效的CAN定长编码方案
2012 9th IEEE International Workshop on Factory Communication Systems Pub Date : 2012-05-21 DOI: 10.1109/WFCS.2012.6242574
G. Cena, I. Bertolotti, A. Valenzano
{"title":"An efficient fixed-length encoding scheme for CAN","authors":"G. Cena, I. Bertolotti, A. Valenzano","doi":"10.1109/WFCS.2012.6242574","DOIUrl":"https://doi.org/10.1109/WFCS.2012.6242574","url":null,"abstract":"Because of the bit stuffing mechanism CAN relies on, the actual duration of frame transmissions over the bus depends on the specific value carried in the data field of the frames. This causes jitters on reception times, which may worsen timing accuracy. Sometimes, this behavior can not be accepted and a number of approaches have been conceived to overcome this problem. In this paper, a software-based technique is described that consists of encoding the payload of the frame before its transmission by using a suitable 8B9B scheme. Such an approach ensures that no stuff bit has then to be added in h/w by the CAN controller in the data field. In this way, jitters are reduced noticeably. The proposed algorithm is very simple and can be implemented, easily and efficiently, on low-cost embedded architectures too.","PeriodicalId":110610,"journal":{"name":"2012 9th IEEE International Workshop on Factory Communication Systems","volume":"238 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127051320","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: 11
A comparison of time- and RSS-based radio localization for the factory floor 工厂车间基于时间和rss的无线电定位的比较
2012 9th IEEE International Workshop on Factory Communication Systems Pub Date : 2012-05-21 DOI: 10.1109/WFCS.2012.6242536
R. Exel, T. Sauter
{"title":"A comparison of time- and RSS-based radio localization for the factory floor","authors":"R. Exel, T. Sauter","doi":"10.1109/WFCS.2012.6242536","DOIUrl":"https://doi.org/10.1109/WFCS.2012.6242536","url":null,"abstract":"Wireless communication systems have many potential benefits for industrial applications, one of them being the support for mobile devices. In such scenarios, determining the position of a wireless node is an essential task which should be accomplished directly and reliably by the communication system. Two popular approaches are the received signal strength (RSS) and time-measurement methods based on signal propagation delays. In this paper, we investigate the attainable localization accuracy for both approaches based on a WLAN setup. Theory and experiments with different setups show that the time-of-flight method is far better than RSS, however at the expense of a higher implementation effort.","PeriodicalId":110610,"journal":{"name":"2012 9th IEEE International Workshop on Factory Communication Systems","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133400097","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: 10
Enabling quick deployment wireless sensor networks for smart cities 为智慧城市实现快速部署无线传感器网络
2012 9th IEEE International Workshop on Factory Communication Systems Pub Date : 2012-05-21 DOI: 10.1109/WFCS.2012.6242547
David Todolí Ferrandis, S. Santonja-Climent, V. Sempere-Payá
{"title":"Enabling quick deployment wireless sensor networks for smart cities","authors":"David Todolí Ferrandis, S. Santonja-Climent, V. Sempere-Payá","doi":"10.1109/WFCS.2012.6242547","DOIUrl":"https://doi.org/10.1109/WFCS.2012.6242547","url":null,"abstract":"WSNs provide a new sensing tool which is basic in the development of improved ways for managing intelligent cities. However, the deployment phase is a complex and slow process that requires pre-planning tasks and qualified personnel. This discourages the use of WSNs, which once installed, could provide high versatility and range of applications at low cost. Our study proposes a quick deployment sensor networks system, which assists the final user (that may not have technical knowledge) to build networks in a multipurpose, easy and fast way.","PeriodicalId":110610,"journal":{"name":"2012 9th IEEE International Workshop on Factory Communication Systems","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116220149","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
Vertical data integration in automation based on IEC 61499 基于IEC 61499的自动化垂直数据集成
2012 9th IEEE International Workshop on Factory Communication Systems Pub Date : 2012-05-21 DOI: 10.1109/WFCS.2012.6242551
Alexander Dennert, A. Gössling, Jakob Krause, M. Wollschlaeger, A. Montoya
{"title":"Vertical data integration in automation based on IEC 61499","authors":"Alexander Dennert, A. Gössling, Jakob Krause, M. Wollschlaeger, A. Montoya","doi":"10.1109/WFCS.2012.6242551","DOIUrl":"https://doi.org/10.1109/WFCS.2012.6242551","url":null,"abstract":"Vertical integration is a long-term issue in automation. Bridging the gap between the control systems and the systems at enterprise layers is still not solved completely. There are a number of approaches defining interfaces, but the functional integration is not sufficiently focused on. Function block concepts have been developed to perform this functional integration at the control systems' level. The paper discusses an approach to use the IEC 61499 function block concept to interconnect functions from the control system layer with functions at MES and ERP levels. Concepts and requirements for this integration are discussed. Based on a prototype scenario from the PLANTCockpit project, the motivation and the benefits are shown.","PeriodicalId":110610,"journal":{"name":"2012 9th IEEE International Workshop on Factory Communication Systems","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125092047","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: 11
Energy-efficient packet relaying based on the sensing relevancies of source nodes in visual sensor networks 视觉传感器网络中基于源节点感知相关性的节能分组中继
2012 9th IEEE International Workshop on Factory Communication Systems Pub Date : 2012-05-21 DOI: 10.1109/WFCS.2012.6242546
D. G. Costa, L. A. Guedes, F. Vasques, P. Portugal
{"title":"Energy-efficient packet relaying based on the sensing relevancies of source nodes in visual sensor networks","authors":"D. G. Costa, L. A. Guedes, F. Vasques, P. Portugal","doi":"10.1109/WFCS.2012.6242546","DOIUrl":"https://doi.org/10.1109/WFCS.2012.6242546","url":null,"abstract":"When packets are transmitted over braided-paths in visual sensor networks some intermediate nodes may relay most part of the traffic, turning part or the entire network inactive when they run out of energy. Due to the nature of visual monitoring, source nodes may have different relevancies for the application, according to the desired monitoring tasks and the current sensors' poses and fields of view. Based on such relevancies, packets transmitted from different source nodes will have different relaying priorities, which are associated with energy thresholds. We propose an energy-efficient relay scheme where packets are forwarded to the next hop toward the sink only if the associated energy threshold is below the current energy level of the relaying node. Doing so, energy saving is achieved potentially prolonging the network lifetime, but with reduced impact to the overall monitoring quality of the application.","PeriodicalId":110610,"journal":{"name":"2012 9th IEEE International Workshop on Factory Communication Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128335016","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
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