New developments of the EAST data system

被引：8

作者：

Liu Ying ^{[1
]}

Li Guiming ^{[2
]}

Zhu Yingfei ^{[2
]}

Li Shi ^{[2
]}

机构：

[1] ShenZhen Univ, Coll Phys Sci & Technol, Shenzhen 518060, Peoples R China

[2] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

来源：

FUSION ENGINEERING AND DESIGN | 2011年 / 86卷 / 2-3期

关键词：

EAST; Long discharge duration; Continuous acquisition; Real-time data access;

D O I：

10.1016/j.fusengdes.2010.10.001

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

As the discharge time becomes longer, the old EAST data system will not meet the requirements of EAST discharge experiment gradually. The problems mainly focus on continuous data acquisition and real-time data access. To meet the requirements of EAST 1000s discharges, the data acquisition mode, data storage structure and data access interface must be improved or reconstructed. Time slice mechanism is one of the popular solutions for continuous data acquisition and real-time data transfer. Data access of large signal files has been successfully solved via a hierarchical storage management system. Moreover, conventional "remote indexing" is replaced with "local indexing" in data access, which greatly enhanced data access speed. These improvements have been implemented and applied to EAST long-pulse plasma experiments which are described in this paper in detail. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：151 / 154

页数：4

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