The realization of high-precise clock synchronization protocol based on adaptive exponential smoothing algorithm

Author

Xie Tai Jun ; Zhu Luan Juan

Author_Institution

Sch. of Electron. Inf., & Electr. Eng., Shanghai Jiao Tong Univ., Shanghai, China

fYear

2014

fDate

15-17 Nov. 2014

Firstpage

692

Lastpage

696

Abstract

In modern distributed measure and control systems, transmission and processing of real-time data requires each communication node to work in a unified time base in order to ensure the timeliness of data transmission. IEEE1588 precision clock synchronization protocol (PTP) is aimed to solve the high-precision clock synchronization, which supports software or hardware implementation. This paper analyzes the factors that affect the accuracy of clock synchronization. Considering the special requirements of the protocol implemented in embedded systems, we propose an adaptive exponential smoothing algorithm to achieve high-precision clock synchronization. Experiments show that this algorithm can significantly improve the accuracy of clock synchronization.

Keywords

clocks; embedded systems; protocols; smoothing methods; IEEE1588 precision clock synchronization protocol; PTP; adaptive exponential smoothing algorithm; clock synchronization accuracy; communication node; control systems; data transmission; distributed measure systems; embedded systems; hardware implementation; real-time data; software implementation; unified time base; Accuracy; Clocks; Delays; Educational institutions; Smoothing methods; Synchronization; Adaptive; Embedded Systems; Exponential Smoothing; IEEE1588; Precision Time Protocol (PTP);

fLanguage

English

Publisher

ieee

Conference_Titel

Systems and Informatics (ICSAI), 2014 2nd International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4799-5457-5

Type

conf

DOI

10.1109/ICSAI.2014.7009374

Filename

7009374