The upgrade of data processing and storage system for EAST NBI

doi:10.1016/j.fusengdes.2021.112849

HFCAS OpenIR

	The upgrade of data processing and storage system for EAST NBI
	Gu, Yu 1; Fan, Mengqi 1; Zhao, Yuanzhe2 ; Zhang, Xiaodan 1
	2021-12-01
发表期刊	FUSION ENGINEERING AND DESIGN
ISSN	0920-3796
通讯作者	Zhang, Xiaodan(xdzhang@qhu.edu.cn)
摘要	Inspired by the ITER organization's CODAC system, the current experimental system architecture is being pro-gressively redesigned using the experimental physics and industrial control system (EPICS) to meet the needs of future long pulse experiments. As part of the overall experimental system, the data processing and storage system (DPSS) is mainly used to provide services of data processing and data storage for the experimental system. However, with the data processing mechanism of the previous DPSS, the previous experimental system is un-satisfactory in terms of real-time experimental data feedback, and the data processing mechanism of the previous DPSS is not compatible with the new architecture. Given that the original DPSS no longer fits the current experimental characteristics in terms of both functionality and demand so that it is necessary to redesign and upgrade the original DPSS to adapt to the new architecture. In view of the soft real-time and distributed char-acteristics of EPICS, the upgraded DPSS will be redesigned based on the data processing mechanism of EPICS. And it uses an adaptive strategy that allows the experimental system to automatically match more appropriate data uploading modes according to the rate of data acquisition. For this purpose, a data transmission protocol based on the TCP/IP protocol has been proposed. With regard to software optimization, the upgraded DPSS uses technologies of double-buffer and MMAP to optimize data exchanging between memory spaces. In terms of data storage, the upgraded DPSS adopts the segment strategy to manage experimental data efficiently. In addition, to prevent problems caused by abnormal circumstances, a guarantee mechanism for data storage is provided in the upgraded DPSS. After being tested, the upgraded DPSS will later be integrated into the general control system of EAST NBI.
关键词	EPICS MDSplus Data processing Transmission Storage management
DOI	10.1016/j.fusengdes.2021.112849
收录类别	SCI
语种	英语
资助项目	Scientific research cooperation project[IPP-ZC-19071806] ; National Natural Science Foundation of Qinghai Province[2019-ZJ-7065] ; National Natural Science Foundation of China[61572370]
项目资助者	Scientific research cooperation project ; National Natural Science Foundation of Qinghai Province ; National Natural Science Foundation of China
WOS研究方向	Nuclear Science & Technology
WOS类目	Nuclear Science & Technology
WOS记录号	WOS:000709543700005
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/125820
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Xiaodan
作者单位	1.Qinghai Univ, Dept Comp Technol & Applicat, Xining 810016, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Gu, Yu,Fan, Mengqi,Zhao, Yuanzhe,et al. The upgrade of data processing and storage system for EAST NBI[J]. FUSION ENGINEERING AND DESIGN,2021,173.
APA	Gu, Yu,Fan, Mengqi,Zhao, Yuanzhe,&Zhang, Xiaodan.(2021).The upgrade of data processing and storage system for EAST NBI.FUSION ENGINEERING AND DESIGN,173.
MLA	Gu, Yu,et al."The upgrade of data processing and storage system for EAST NBI".FUSION ENGINEERING AND DESIGN 173(2021).