Research on data storage and reading method of EAST poloidal field power supply

Wang Guanghong; Huang Liansheng; Gao Ge; Fu Peng; He Shiying; Wang Zejing

doi:10.11884/HPLPB201931.180360

Volume 31 Issue 5

May 2019

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Wang Guanghong, Huang Liansheng, Gao Ge, et al. Research on data storage and reading method of EAST poloidal field power supply[J]. High Power Laser and Particle Beams, 2019, 31: 056003. doi: 10.11884/HPLPB201931.180360

Citation:

Wang Guanghong, Huang Liansheng, Gao Ge, et al. Research on data storage and reading method of EAST poloidal field power supply[J]. High Power Laser and Particle Beams, 2019, 31: 056003. doi: 10.11884/HPLPB201931.180360

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Research on data storage and reading method of EAST poloidal field power supply

doi: 10.11884/HPLPB201931.180360

Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China

Received Date: 2018-12-03
Rev Recd Date: 2019-02-28
Publish Date: 2019-05-15

Abstract

Abstract

The plasma discharge duration of EAST (Experimental Advanced Super-conducting Tokamak) is designed to be 1000 s, the time has exceeded 100 s at present. As the core subsystem, poloidal field power supply(PF) has nearly 200 signals to be stored. For every discharge, the amount of data is very large, ordinary database can't meet the requirement of long pulse data storage. This paper uses HDF5 (Hierarchical Data Format) to store the long pulse data. HDF5 is a file format that can store different types of images and data. Using C interface of HDF5 to design a dataset with compound datatype, to realize real-time writing and reading, the primary discharge time is segmented and the data is written and read as chunks. Visualization tool Hdfview is used to view the dataset, and Qt is used to read HDF5 file and display waveform. It proves the correctness of compound datatype and chunk dataset, and the feasibility of writing and reading as chunks. Simple time test proves that writing and reading as chunks are efficient.
- EAST poloidal field power supply,
- long pulse,
- HDF5,
- compound datatype,
- write and read as chunks

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References(10)

References

[1]	王广红, 何诗英, 高格, 等. EAST极向场电源本地控制器软件设计与实现[J]. 计算机测量与控制, 2018, 26(1): 157-160. https://www.cnki.com.cn/Article/CJFDTOTAL-JZCK201801039.htm Wang Guanghong, He Shiying, Gao Ge, et al. Design and implementation of local controller software for EAST poloidal field power supply. Computer Measurement & Control, 2018, 26(1): 157-160 https://www.cnki.com.cn/Article/CJFDTOTAL-JZCK201801039.htm
[2]	杨飞, 肖炳甲, 朱应飞, 等. EAST长脉冲放电实验实时数据系统[J]. 计算机工程, 2011, 37(4): 12-14. https://www.cnki.com.cn/Article/CJFDTOTAL-JSJC201104006.htm Yang Fei, Xiao Bingjia, Zhu Yingfei, et al. Real-time data system in long pulse discharge experiments of EAST. Computer Engineering, 2011, 37(4): 12-14 https://www.cnki.com.cn/Article/CJFDTOTAL-JSJC201104006.htm
[3]	张永定, 秦品健, 郑锐. MDSplus在极向场电源数据管理系统中的应用[J]. 电源技术, 2011, 358(8): 966-968. doi: 10.3969/j.issn.1002-087X.2011.08.025 Zhang Yongding, Qin Pinjian, Zheng Rui. Application of MDSplus in data management of EAST poloidal field power supply. Chinese Journal of Power Source, 2011, 358(8): 966-968 doi: 10.3969/j.issn.1002-087X.2011.08.025
[4]	刘强, 肖炳甲, 王华忠, 等. 基于MDSplus的EAST长脉冲数据采集系统设计与实现[J]. 微计算机信息, 2012, 28(9): 59-61. https://www.cnki.com.cn/Article/CJFDTOTAL-WJSJ201209026.htm Liu Qiang, Xiao Bingjia, Wang Huazhong, et al. Design and implementation of EAST long-pulse data acquisition system based on MDSplus. Microcomputer Information, 2012, 28(9): 59-61 https://www.cnki.com.cn/Article/CJFDTOTAL-WJSJ201209026.htm
[5]	Cook N. Survey of scientific data formats[R]. Cadarache: ITER Organization, 2015.
[6]	The HDF Group. HDF5 user's guide[EB/OL]. https://support.hdfgroup.org/HDF5/doc1.6/UG/.
[7]	童大云, 秦忠国, 魏雨露, 等. HDF5在大型有限元软件数据管理中的应用[J]. 计算机应用与软件, 2014, 31(2): 58-61. https://www.cnki.com.cn/Article/CJFDTOTAL-JYRJ201402017.htm Tong Dayun, Qin Zhongguo, Wei Yulu, et al. Applying HDF5 in large-scale finite element software data management. Computer Applications and Software, 2014, 31(2): 58-61 https://www.cnki.com.cn/Article/CJFDTOTAL-JYRJ201402017.htm
[8]	The HDF Group. HDF5 Datatypes[EB/OL]. https://support.hdfgroup.org/HDF5/doc1.6/UG/11_Datatypes.html.
[9]	杨飞. EAST实验数据系统研究[D]. 合肥: 中国科学院等离子体物理研究所, 2011. Yang Fei. Systematic research on EAST experimental data. Hefei: Institute of Plasma Physics, Chinese Academy of Sciences, 2011
[10]	The HDF Group. HDFVIEW[EB/OL]. https://support.hdfgroup.org/products/java/hdfview/.