scholarly journals Low latency information transfer based on precision time synchronization via wireless interferometry

2021 ◽  
Vol 12 (2) ◽  
pp. 225-235
Author(s):  
Daijiro Koyama ◽  
Yunzhuo Wang ◽  
Nobuyasu Shiga ◽  
Satoshi Yasuda ◽  
Nicolas Chauvet ◽  
...  
Keyword(s):  
Information Transfer ◽  
Time Synchronization ◽  
Low Latency ◽  
Precision Time

scholarly journals The Effect of Time Synchronization Error in LAN-Based Digital Substation

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 2044 ◽  
Author(s):  
Kyou Jung Son ◽  
Tae Gyu Chang ◽  
Sang-Hee Kang
Keyword(s):  
Time Synchronization ◽  
Synchronization Error ◽  
Distance Protection ◽  
Proposed Model ◽  
Power Substation ◽  
Digital Substation ◽  
Good Guide ◽  
Precision Time ◽  
Intelligent Electronic Devices ◽  
Precise Time

In this paper, the effect of time synchronization error on protection algorithms are studied for the usage of the LAN-based collaborative protection. In order to derive the effect of time synchronization, this paper proposes a substation model which is constructed with IEEE 1588 Precision Time Protocol (PTP) supported intelligent electronic devices. The proposed model is used as an example of a target platform to study the effect of time synchronization error with two typical substation protection algorithms, i.e., current differential-based substation protection and distance protection algorithms. From the analyzed and the simulated results, it was well observed that time synchronization error is a significant error-causing factor for both protection algorithms, resulting in erroneous detection of faults and erroneous estimation of fault distances, respectively. The results of research performed in this paper are expected to provide a good guide for constructing the future LAN-based digital power substation with precise time synchronization.

Implementation of MPLS Network Delay Measurement with 1588 Precision Time Synchronization Protocol

2014 ◽  
Vol 701-702 ◽  
pp. 969-973
Author(s):  
Hong Jun Yang ◽  
Yong Liang Liu ◽  
Xiao Hong Yu ◽  
Gang Song
Keyword(s):  
Time Delay ◽  
Time Synchronization ◽  
Network Time ◽  
Delay Measurement ◽  
Multi Protocol Label Switching ◽  
Precision Time ◽  
The Right ◽  
Rapid Deployment ◽  
Important Significance ◽  
Synchronization Protocol

The right measurement of network time delay is the basis of a good network service. With the research on the IEEE 1588 precision time synchronization protocol and MPLS (Multi-protocol Label Switching), a method to realize the network time delay measurement in the MPLS network is introduced. It is also pointed out that this method has very important significance for the rapid deployment of network and the network quality evaluation.

LXI Precision Time Protocol Applied Research

2013 ◽  
Vol 330 ◽  
pp. 561-564 ◽  
Author(s):  
Ming Li ◽  
Chun Ping Wang ◽  
Zhi Qiang Wang
Keyword(s):  
Real Time ◽  
Applied Research ◽  
Time Synchronization ◽  
Local Area Network ◽  
Local Area ◽  
Test System ◽  
Area Network ◽  
Automatic Test System ◽  
Precision Time ◽  
Precise Time

In order to meet the real-time demands of some equipment networked test, the time synchronization techniques of ATS based traditional instrument buses are compared with the techniques of LXI ATS. Accordingly，the necessity of LXI ATS time synchronization technique study is put forward. The sorts of time synchronization techniques based on Local Area Network are analyzed. In addition, some methods which could improve the level of LXI data real-time communications are presented. Afterwards, technique realizations of PTP are studied in detail. Local Area Network techniques and IEEE 1588 Precise Time Protocol are adopted in the LXI Automatic Test System which designed in the paper, and the level of time synchronization precision in the system is improved.

scholarly journals Enhanced Precision Time Synchronization for Wireless Sensor Networks

Sensors ◽  
2011 ◽  
Vol 11 (8) ◽  
pp. 7625-7643 ◽  
Author(s):  
Hyuntae Cho ◽  
Jongdeok Kim ◽  
Yunju Baek
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Time Synchronization ◽  
Wireless Sensor ◽  
Precision Time
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