Synchronization of the probes of a distributed instrument for Real-Time Ethernet networks

被引：16
|
作者：
Ferrari, Paolo [1 ]
Flammini, Alessandra [1 ]
Marioli, Daniele [1 ]
Rinaldi, Stefano [1 ]
Taroni, Andrea [1 ]
机构：
[1] Univ Brescia, Dept Elect Automat, I-25123 Brescia, Italy
来源：
2007 IEEE INTERNATIONAL SYMPOSIUM ON PRECISION CLOCK SYNCHRONIZATION FOR MEASUREMENT CONTROL AND COMMUNICATION | 2007年
关键词：
D O I：
10.1109/ISPCS.2007.4383770
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This work deals with distributed, multi-probe, instrument for performance analysis of Real-Time Ethernet (RTE) network Particularly, the work is focused on synchronization techniques for distributed measurements. In fact, the accuracy of results (typically jitter and delay) strictly depends on synchronization among distributed probes that sample data. Three synchronization techniques have been implemented and experimental results are reported Synchronization try means of an external dedicated 1-PPS signal gives the best results but requires a more complicated instrument structure. On the other hand a network-oriented synchronization, such as IEEE 1588 PTP or PCTP (PROFINET IO), can simplify time distribution keeping accuracy well below 1 mu s.
引用
收藏
页码：33 / 40
页数：8
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