Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012)最新文献

Safety critical supervision for steel industry robotic applications 钢铁工业机器人应用的安全关键监管

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-17 DOI: 10.1109/ETFA.2012.6489754

Paolo Demetlika, G. Fenu, F. Romano, Andrea Paoli, L. Cicognani

引用次数: 3

Schedulability analysis for a combination of non-preemptive strict periodic tasks and preemptive sporadic tasks 非抢占式严格周期性任务与抢占式偶发任务组合的可调度性分析

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-17 DOI: 10.1109/ETFA.2012.6489569

M. Marouf, L. George, Y. Sorel

{"title":"Schedulability analysis for a combination of non-preemptive strict periodic tasks and preemptive sporadic tasks","authors":"M. Marouf, L. George, Y. Sorel","doi":"10.1109/ETFA.2012.6489569","DOIUrl":"https://doi.org/10.1109/ETFA.2012.6489569","url":null,"abstract":"We consider the problem of fixed priority scheduling of non-preemptive strict periodic tasks in conjunction with sporadic preemptive tasks. There are few studies about the scheduling problem combining these two kinds of tasks. Moreover, only few results are available on scheduling non-preemptive strict periodic tasks since their performance analysis gives low success ratios, except in the case of harmonic tasks. Also, strict periodic tasks are of great importance since they are in charge for example of sensors/actuators or feedback control functions which are all critical in feedback control systems. Such tasks must have the highest priorities in order to guarantee a correct behavior of the control system. Preemptive sporadic tasks can be used for non critical functions and have lower priorities. We first investigate the scheduling problem of non-preemptive strict periodic tasks by recalling an existing schedulability condition. This results in defining the first release times of strict periodic tasks that preserves the strict periodicity constraints. We show that the schedule of strict periodic tasks can have transient and permanent phases. Then, assuming that some non-preemptive strict periodic tasks have been scheduled, we characterize the release times of the sporadic tasks that maximize their worst case response times. We prove that these release times can be restricted to the permanent phase. For preemptive sporadic tasks, we extend the classical worst case response time computation to take into account non-preemptive strict periodic tasks. Finally, we consider the particular case where some of the sporadic tasks are alternate tasks to primary strict periodic tasks for fault-tolerance.","PeriodicalId":222799,"journal":{"name":"Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114727760","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

Hardware in the loop simulation for distributed automation systems 分布式自动化系统的硬件在环仿真

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-01 DOI: 10.1109/ETFA.2012.6489670

C. Fantuzzi, R. Panciroli, M. Gargiulo

引用次数: 4

Distributed applications management platform based on Service Component Architecture 基于服务组件体系结构的分布式应用管理平台

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-01 DOI: 10.1109/ETFA.2012.6489684

Aitor Agirre, M. Marcos, Elisabet Estévez-Estévez

引用次数: 13

Usage of public key infrastructures in automation networks 自动化网络中公钥基础设施的使用

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-01 DOI: 10.1109/ETFA.2012.6489750

Stefan Hausmann, S. Heiss

引用次数: 8

Data-type checking of IEC61131-3 ST and IL applications IEC61131-3 ST和IL应用的数据类型检查

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-01 DOI: 10.1109/ETFA.2012.6489534

M. Sousa

引用次数: 10

A distributed load balancing approach for industrial IEEE 802.11 wireless networks 工业IEEE 802.11无线网络的分布式负载平衡方法

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-01 DOI: 10.1109/ETFA.2012.6489583

M. Collotta, G. Pau, V. M. Salerno, G. Scatà

引用次数: 22

Data synchronization with conflict resolution for RFID-based track and trace 基于rfid的跟踪与追踪的数据同步与冲突解决

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-01 DOI: 10.1109/ETFA.2012.6489549

Chi Xu, W. He, Yintai Ao, Xiao Xue Jian, NengSheng Zhang, Xia Wendong, Tieyan Li

引用次数: 1

New concept to develop a safety sensor network for continuous noninvasive blood pressure monitoring 开发安全传感器网络的新概念，用于连续无创血压监测

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-01 DOI: 10.1109/ETFA.2012.6489742

H. Sheng, M. Schwarz, J. Börcsök

引用次数: 0

Model-driven approach to design ICT infrastructure for precision farming 模型驱动方法设计精准农业ICT基础设施

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-01 DOI: 10.1109/ETFA.2012.6489709

I. Kaitovic, Rafael Rezende, C. Murillo, C. Fantuzzi

{"title":"Model-driven approach to design ICT infrastructure for precision farming","authors":"I. Kaitovic, Rafael Rezende, C. Murillo, C. Fantuzzi","doi":"10.1109/ETFA.2012.6489709","DOIUrl":"https://doi.org/10.1109/ETFA.2012.6489709","url":null,"abstract":"Design of complex systems involving a number of experts from various fields necessarily includes modeling at different levels of abstraction. Modeling is particularly important in the initial phase of a joint project when all system requirements and constraints have to be clearly defined and understood by all the partners. Once an unambiguous structural model has been achieved and components interfaces fixed, design of components can be done independently. For the initial phase, a very simplified modeling methodology based on UML that can be easily understood and applied has been proposed. The application of the methodology has been presented through the design of full structural model of the infrastructure for precision farming. Modeled infrastructure is an open ICT hardware-software solution based on ISOBUS specification, that enables partial automation of tractors increasing safety and production efficiency. Model achieved through several steps presents a mutual understanding platform between the partners. Most importantly, a precise model has been achieved without the necessity of in deep study of UML by all the partners.","PeriodicalId":222799,"journal":{"name":"Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128219711","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