2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS)最新文献_第2页

Next Steps in Security for Time Synchronization: Experiences from implementing IEEE 1588 v2.1 时间同步安全性的后续步骤:来自实现IEEE 1588 v2.1的经验

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886641

Ezzeldin Shereen, Florian Bitard, G. Dán, Tolga Sel, S. Fries

引用次数: 21

Software-based Time Synchronization for Integrating Power Hardware in the Loop Emulation in IEEE1588 Power Profile Testbed IEEE1588电源模块试验台集成电源硬件环路仿真的软件时间同步

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886644

S. Rinaldi, Federico Bonafini, P. Ferrari, A. Flammini, M. Pasetti, E. Sisinni

{"title":"Software-based Time Synchronization for Integrating Power Hardware in the Loop Emulation in IEEE1588 Power Profile Testbed","authors":"S. Rinaldi, Federico Bonafini, P. Ferrari, A. Flammini, M. Pasetti, E. Sisinni","doi":"10.1109/ISPCS.2019.8886644","DOIUrl":"https://doi.org/10.1109/ISPCS.2019.8886644","url":null,"abstract":"Modern power systems are becoming more and more complex, in order to handle the growing spread of Renewables and of Electric Vehicle charging stations. The control capability relies on the integration of Information and Communication Technology (ICT), including accurate time distribution mechanisms, such as the IEEE 1588 protocol, to the existing distribution grid infrastructure. The validation of such complex systems can hardly be performed in real environments, for both technical and economic reasons. Power Hardware in the Loop (PHIL) emulation systems have already been demonstrated to be effective for this scope. The design of a testbed for the validation of IEEE 1588 power profile based on PHIL solutions requires the capability to synchronize the time bases of the elements forming the testbed. Commercial PHIL systems often offer proprietary synchronization solutions, but these approaches cannot be applied in the general case. In this paper, a software-based solution, able to time synchronize PHIL with IEEE 1588 devices, has been investigated. Such a solution has the advantage that it does not require dedicated hardware, thus it can be applied to different PHIL systems. The experimental characterization highlights that, using such approach, it is possible to reach a time synchronization with an expanded uncertainty (k=3) of 0.75 μs, more than enough to correctly emulate events on the power grid.","PeriodicalId":193584,"journal":{"name":"2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130591746","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

[ISPCS 2019 Front Matter] [ISPCS 2019前沿事项]

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ispcs.2019.8886636

引用次数: 0

Calibrating NTP 校准国家结核控制规划

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886646

Faten Mkacher, A. Duda

引用次数: 3

Redundant Schemes or How to Counter the Delay Attack on Time Synchronization Protocols 冗余方案或如何对抗时间同步协议的延迟攻击

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886635

Johannes Neyer, L. Gassner, C. Marinescu

引用次数: 7

Are Cloud Services Aware of Time? An Experimental Analysis oriented to Industry 4.0 云服务有时间意识吗?面向工业4.0的实验分析

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886642

S. Rinaldi, P. Bellagente, P. Ferrari, A. Flammini, E. Sisinni

{"title":"Are Cloud Services Aware of Time? An Experimental Analysis oriented to Industry 4.0","authors":"S. Rinaldi, P. Bellagente, P. Ferrari, A. Flammini, E. Sisinni","doi":"10.1109/ISPCS.2019.8886642","DOIUrl":"https://doi.org/10.1109/ISPCS.2019.8886642","url":null,"abstract":"In the last years, the industrial automation has experienced a deep transformation known as Industry4.0, and it is driven by Internet of Things (IoT) paradigm. The IoT-based automation is based on well-defined data models, which make easy the interaction among devices. Generally, the data generated by IoT sensors are elaborated to obtain value added services (such as predictive maintenance), exploiting cloud services and remote servers. An accurate timestamp of the data generated by sensors is required to maintain an adequate level of such services: an “easy” task in the case of a new deployment, but a nightmare when existing plants or machinery are retrofitted. In this case, the data are timestamped at cloud level, using the remote time. In such situations, a knowledge of the sense of time of cloud services is fundamental to guarantee the quality of data elaboration. The target of the research is an experimental characterization and a comparison of time awareness of different commercial cloud service providers (i.e. Amazon AWS, Google Cloud and Microsoft Azure). The characterization highlights as, generally, the performance provided by different platform is comparable each other. The time offset of NTP (Network Time Protocol) clients running on different Virtual Machines (VMs) has an uncertainty ranging from 0.05 ms up to 0.6 ms depending by the client configuration. Such results demonstrate that extreme care must be taken when using the time of remote VMs.","PeriodicalId":193584,"journal":{"name":"2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS)","volume":"545 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116712009","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