Storing, processing, and transmitting state confidential information are strictly prohibited on this website
Cheng Zuqiao, Deng Hui, Wang Feng, Liang Bo, Ji Kaifan, Wang Chuanjun, Xu Jun. Design of the Distributed Real-Time Control and Image-Acquisiton Software System for the YNAO 1m Solar Telescope[J]. Astronomical Research and Technology, 2012, 9(4): 426-431.
Citation: Cheng Zuqiao, Deng Hui, Wang Feng, Liang Bo, Ji Kaifan, Wang Chuanjun, Xu Jun. Design of the Distributed Real-Time Control and Image-Acquisiton Software System for the YNAO 1m Solar Telescope[J]. Astronomical Research and Technology, 2012, 9(4): 426-431.

Design of the Distributed Real-Time Control and Image-Acquisiton Software System for the YNAO 1m Solar Telescope

More Information
  • Received Date: August 16, 2011
  • Revised Date: September 04, 2011
  • Published Date: October 14, 2012
  • The 1m infrared solar tower is located at the Fuxian Solar Physics Observing Station, Yunnan Porvince. It is about 60 kilometers southeast of Kunming, the captal of the Yunnan Province, China. It will serve as a major ground-based optical and near-infrared solar observation equipment for China throughout the first few decades of this century, and is currently the world's largest vacuum solar telescope. This paper focuses on the design of its multiple-CCD real-time control and image-acquisition software system. The software system adopts an overall architecture of master-to-front. In order to solve the problem of communication between the main-control and front-end systems, four kinds of application-layer communication protocols are designed: basic system initializing protocols, controlling protocols, status protocols, and parameter-setting protocols. In order to obtain a data processing speed matching the CCD recording speed, we use double-buffers and double-ADCs to receive the data from CCD, and use the DMA technology to directly transfer data from the storages of CCD to the memories of the front-end computer. The Socket, data-acquisition, and data-processing threads are designed for the front-end system and the main-control system to realize the synchronization for multi-CCD image acquisition. The front-end system sends "heart-beat" information every 10 seconds to the main-control system to confirm it is active. Currently, the optical, mechanical, and electrical components of the solar tower have been completely installed. The Gigabit Ethernet, computers, and CCDs have also been installed. The software system described in this paper has been deployed and early-stage runnings show that it can serve the routine operations of the solar tower.
  • [1]
    刘忠, 尤建圻, 沈龙翔. 1m红外太阳塔[C]//2002中国天文望远镜及仪器学术讨论会论文集. 北京:中国科学技术出版社, 2003:272-276.
    [2]
    PCO AG. PCO4000 Product Details[EB/OL]. [2011-08-17]. http://www.pco.de/sensitive-cameras/pco4000/.
    [3]
    PCO AG. PCO2000 Product Details[EB/OL]. [2011-08-17]. http://www.pco.de/sensitive-cameras/pco2000/.
    [4]
    PCO AG. pco.camera/SDK_Descriptionre[EB/OL]. (2009-10-27) [2011-08-17]. http://www.cookecorp.com/software/pco4000/.
    [5]
    程租桥, 邓辉, 王锋, 等. 基于Camera Link总线的CCD高速图像采集技术[J]. 天文研究与技术——国家天文台台刊, 2011, 8(4):363-368. Cheng Zuqiao, Deng Hui, Wang Feng, et al. A study on camera-link-based high-speed CCD image acquisition techniques[J]. Astronomical Research & Technology——Publications of National Astronomical Observatories of China, 2011, 8(4):363-368.
    [6]
    休斯. C++面向对象多线程编程[M]. 周良忠, 译. 北京:人民邮电出版社, 2003.
    [7]
    W Richard Stevens. TCP/IP详解[M]. 范建华, 胥光辉, 张涛, 等译. 北京:机械工业出版社, 2000.
  • Articles Related

    [1]He Feilong, Xu Qian, Wang Na, Li Lin, Huang Shiyi. Research on Wind Flow Regulation Influenced by the Mountain Terrain at Large Aperture and High Precision Radio Telescope Site Based on Numerical Simulation [J]. Astronomical Techniques and Instruments, 2023, 20(4): 296-309. DOI: 10.14005/j.cnki.issn1672-7673.20230318.001
    [2]Zhao Zicheng, Long Qian, Dong Xiaobo, Meng Runyu, Zhong Shiyan, Chen Junyi, Xiang Zikun. Feasibility Study of Collisionless Gravitational N-body Numerical Simulation Based on Deep Learning [J]. Astronomical Research and Technology, 2022, 19(2): 165-178. DOI: 10.14005/j.cnki.issn1672-7673.20210730.004
    [3]Shen Yuliang, Dou Jiangpei. High-contrast Imaging Design and Numerical Simulation of Exoplanets Detection in Full-working Area [J]. Astronomical Research and Technology, 2020, 17(1): 68-75.
    [4]Zhang Xin. A Fast Image Simulation Method and Analysis for Astronomy Research [J]. Astronomical Research and Technology, 2019, 16(1): 77-84.
    [5]Huang Yu, Huang Guangli. Study of Backward-Propagating Langmuir Waves with Numerical Simulations Based on the Particle-in-Cell Method [J]. Astronomical Research and Technology, 2012, 9(4): 353-356.
    [6]Wu Mingchang, Wang Qiming, Guo Yongwei, Zhao Baoqing. A Numerical Study on the Wind Environment of the FAST [J]. Astronomical Research and Technology, 2012, 9(2): 121-128.
    [7]Chang Xiang, Li Rongwang, Xiong Yaoheng. Numerical Simulations of Astronomical Imaging with the Phase-Screen Method [J]. Astronomical Research and Technology, 2012, 9(1): 46-55.
    [8]HUANG Yu, HUANG Guang-li. Backward Langmuir Wave Analysis and Comparesion with PIC Simulation [J]. Astronomical Research and Technology, 2006, 3(2): 203-209.
    [9]ZHOU Hong-nan, ZHANG Guo-fang. The Computer Simulation of Dynamics Study in Astrophysics [J]. Publications of the Yunnan Observatory, 2000, 0(3): 22-30.
    [10]Huan Zunxiang, Ji Kaifan, Cao Wenda, Song Qian. The Simulation and Formation of Fractal Images [J]. Publications of the Yunnan Observatory, 1997, 0(1): 1-9.

Catalog

    Article views (125) PDF downloads (25) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return