Synchronization of the Probes of a Distributed Instrument for Real-Time Ethernet Networks
- 1 October 2007
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
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 by means of an external dedicated l-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 FTP or PCTP (PROFINET 10), can simplify time distribution keeping accuracy well below 1 mus.Keywords
This publication has 12 references indexed in Scilit:
- A network agent for diagnosis and analysis of real-time Ethernet networksPublished by Association for Computing Machinery (ACM) ,2006
- Multi-probe measurement instrument for real-time ethernet networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Robust synchronization of software clocks across the internetPublished by Association for Computing Machinery (ACM) ,2004
- Introduction to time and frequency metrologyReview of Scientific Instruments, 1999
- Clock stability characterization and measurement in telecommunicationsIEEE Transactions on Instrumentation and Measurement, 1997
- Specification and Implementation of the Universal Time Coordinated Synchronization Unit (UTCSU)Real-Time Systems, 1997
- An interval-based framework for clock rate synchronizationPublished by Association for Computing Machinery (ACM) ,1997
- Fundamental Noise Studies of Quartz Crystal ResonatorsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1976
- Measurement of the Short-Term Stability of Quartz Crystal Resonators and the Implications for Crystal Oscillator Design and ApplicationsIEEE Transactions on Instrumentation and Measurement, 1975
- Direct Measurements of the Inherent Frequency Stability of Quartz Crystal ResonatorsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1974