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LAMOST观测控制系统 总被引：8，自引：0，他引：8
LAMOST的观测控制系统将实时地与望远镜控制系统和焦面仪器控制系统一起来完成LAMOST的光谱巡天工作,同时与数据处理系统紧密联系以安排观测计划和数据处理任务。研制观测控制系统的目的是自动地完成整个光谱巡天工作,以最有效地获得科学产出。 相似文献
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观测控制系统是为LAMOST(大天区面积多目标光纤光谱天文望远镜)开发的基于网络的、自动运行观测流程的软件系统。在研究观测控制系统的实际网络拓扑结构和通信协议的基础上,利用网络模拟软件NS2对其进行模拟和分析,并对网络性能进行了实测。网络模拟和实测的结果证明,目前开发的观测控制系统在现有的网络结构和通信协议下能够稳定工作。同时,本研究也为观测控制系统的网络故障诊断提供了方法。 相似文献
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国家重大科学工程项目“大天区面积多目标光纤光谱天文望远镜”LAMOST（Large sky Area Multi-Object fiber Spectroscopic Telescope）目前已经进入了安装调试阶段,在2007年即将逐步投入使用．LAMOST总控系统是一个复杂的软件工程,需要对望远镜实时监控并给维护者提供多种控制手段．随着手机成为大众日常通讯工具,利用基于GSM（GlobalSystemforMobilecommunication）网络的手机短信对LAMOST望远镜进行远程无线监控,已经成为总控系统的一种辅助监控手段．文章着重描述该系统的软硬件原理、接口、控制流以及安全性的考虑．该项研究的使用在国内望远镜控制系统中尚属首次,目前已获得国家发明专利申请号． 相似文献
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《天文学报》2016,(1)
郭守敬望远镜(Large Sky Area Multi-Object Fiber Spectroscopic Telescope,LAMOST)、斯隆数字巡天(Sloan Digital Sky Survey,SDSS)、英澳望远镜(AngloAustralia Telescope,AAT)等大多数多目标光纤光谱望远镜现用的数据处理流程都是基于一维算法的.以LAMOST为例提出多目标光纤光谱数据处理流程方法.在LAMOST现用数据处理流程中,在预处理过程之后,通过基于一维模型的抽谱算法从二维观测目标光谱数据中得到一维抽谱结果作为中间数据.后续的处理步骤都基于一维模型的算法.然而,这种数据处理流程不符合观测光谱的形成机理.因此,在每个步骤中都引入了不可忽略的误差.为了解决这一问题,提出了一种还未被用于LAMOST及其他望远镜数据处理系统的新颖的数据处理流程.重新设计安排了各个数据处理模块的顺序,各关键步骤算法都是基于二维模型的.核心算法将详细论述.此外,列出了部分实验结果来证明二维算法的有效性和优越性. 相似文献
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LAMOST总控系统消息总线研究 总被引：1，自引：1，他引：0
国家重大科学工程项目"大天区面积多目标光纤光谱天文望远镜"LAMOST(Large Sky Area Multi-Object Fiber Spectroscopic Telescope)望远镜控制系统TCS(Telescope Control System)上和观测控制系统OCS(Observatory Control System)进行消息通讯,下控制着主动光学、机架控制、焦面控制等多种光机电实体的运作.该文研究了如何在TCS中利用消息总线对各种不同优先级、不同处理对象的消息进行分类和分解,并按照流程对消息进行并行或串行的处理,以确保整个观测流程的顺利完成. 相似文献
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Our main goal is to determine the dynamic equations of a certain complex system, as is the case of the mechanical system for
a small aperture telescope. Causes of this complexity are: the lack of documents about the operation of the elements belonging
to the system, and the variation of dynamics with respect to the time and the position of the telescope. To check that we
have obtained a valid set of dynamic equations, we will design a computer control system that will implement a self-guide
system for the telescope.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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Jian Wang Ming-Cheng Luo Wen-Qing Wu Jia-Jing Liu Peng-Yi Tang Li-Chun Zhu Ge Jin 《Experimental Astronomy》2013,36(3):569-589
FAST(The Five-Hundred-Meter Aperture Spherical Radio Telescope) is an under-building radio telescope which will be the largest single dish in the world. Through the study of the central control system, in accordance with the actual operation of the telescope and observation process, this article introduces the physical models for engineers and observers, the central control system architecture design, basic support modules and the necessary interfaces. We simulated observation control process and telescopes monitoring and control process, and took Active Reflector System as a subsystem example to complete the control system design and implementation using EPICS (Experimental Physics and Industrial Control System). The Central control system, with active reflector systems, feed supporting system has been taken to an integration test at Miyun model. In the case of the normal operation of the various sub-systems of the Miyun model by the central control system, a coordinated control is achieved. 相似文献
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We outline the basic idea of an automatically working telescope based on inexpensive commercially available hardware components. A new generation of the control software is proposed which makes the full remote control of the telescope via Internet network possible - without human factor. The main scientific goal is to provide quasisimultaneous optical data for gamma-ray satellite projects such as CGRO, HETE, INTEGRAL etc. The telescope will automatically investigate the positions of high energy sources such as GRB and AGNs, at optical wavelengths. The automatically operated burst alert telescope is expected to improve our knowledge of these astrophysical objects. The proposed experiment is different from the OTM Optical Transient Monitor which is monitoring experiment unrelated to satellite data. The system can be also applied in other areas of astronomy and astrophysics as well as provide sky patrol. 相似文献
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控制系统能衔接、集成和管理射电望远镜的软硬件系统。控制系统的序列化工具可以将射电望远镜的不同设备、操作系统、编程语言和网络之间传输的信息进行编码和解码,增强系统之间数据的传输效率。分析和比较了3款二进制序列化工具Msgpack,Protobuf和Flatbuffers的编码原理及特性,并通过一个实例测试了它们的序列化数据大小、序列化时间和中央处理器利用率。结果表明,Msgpack的综合性能优于Protobuf和Flatbuffers,适用于周期长、需求易变的射电望远镜系统之间传输信息的编码和解码。 相似文献
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Five-hundred-meter Aperture Spherical Telescope project 总被引：2，自引：0，他引：2
A Five hundred meter Aperture Spherical Telescope (FAST) is proposed to be built in the unique karst area of southwest China,
and will act, in a sense, as a prototype for the Square Kilometer Array (SKA). It will be over twice as large as the Arecibo
telescope coupled with much wider sky coverage. Some results from site surveys for such a SKA concept are briefly reported.
Technically, FAST is not simply a copy of the existing Arecibo telescope but has rather a number of innovations. Firstly,
the proposed main spherical reflector, by conforming to a paraboloid of revolution in real time through actuated active control,
enables the realization of both wide bandwidth and full polarization capability while using standard feed design. Secondly,
a feed support system which integrates optical, mechanical and electronic technologies will effectively reduce the cost of
the support structure and control system. Pre-research on FAST has become a key project in the CAS.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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K. S. Gothe T. P. Prabhu P. R. Vishwanath B. S. Acharya R. Srinivasan V. R. Chitnis P. U. Kamath G. Srinivasulu F. Saleem P. M. M. Kemkar P. K. Mahesh F. Gabriel J. Manoharan N. Dorji T. Dorjai D. Angchuk A. I. D’souza S. K. Duhan B. K. Nagesh S. K. Rao S. K. Sharma B. B. Singh P. V. Sudersanan M. Tashi Thsering S. S. Upadhya G. C. Anupama R. J. Britto R. Cowsik L. Saha A. Shukla 《Experimental Astronomy》2013,35(3):489-506
An array of seven atmospheric Cherenkov telescopes was commissioned at a high altitude site in Hanle in the Ladakh region of the Himalayas. The array called HAGAR has been designed to observe celestial γ-rays of energy >100 GeV. Each telescope is altitude-azimuth mounted and carries seven parabolic mirrors whose optic axes are co-aligned with the telescope axis. The telescopes point and track a celestial source using a PC-based drive control system. Two important issues in positioning of each HAGAR telescope are pointing accuracy of telescope axis and co-alignment of mirrors’ optic axes with the telescope axis. We have adopted a three pronged strategy to address these issues, namely use of pointing models to improve pointing accuracy of the telescopes, RA-DEC scan technique to measure the pointing offsets of the mirrors and mechanical fine-tuning of off-axis mirrors by sighting a distant stationary light source. This paper discusses our efforts in this regard as well as the current status of pointing and monitoring of HAGAR telescopes. 相似文献
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G. A. Verdoes Kleijn K. H. Kuijken E. A. Valentijn D. R. Boxhoorn K. G. Begeman E. R. Deul E. M. Helmich R. Rengelink 《Experimental Astronomy》2013,35(1-2):103-130
The OmegaCAM wide-field optical imager is the sole instrument on the VLT Survey Telescope at ESO’s Paranal Observatory. The instrument, as well as the telescope, have been designed for surveys with very good, natural seeing-limited image quality over a 1 square degree field. OmegaCAM was commissioned in 2011 and has been observing three ESO Public Surveys in parallel since October 15, 2011. We use the Astro-WISE information system to monitor the calibration of the observatory and to produce the Kilo Degree Survey (KiDS). Here we describe the photometric monitoring procedures in Astro-WISE and give a first impression of OmegaCAM’s photometric behavior as a function of time. The long-term monitoring of the observatory goes hand in hand with the KiDS survey production in Astro-WISE. KiDS is observed under partially non-photometric conditions. Based on the first year of OmegaCAM operations it is expected that a ～ 1–2 % photometric homogeneity will be achieved for KiDS. 相似文献
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1m太阳望远镜的方位驱动控制系统采用液压轴承,液压系统正常工作时望远镜才能实现平稳旋转。可通过油压、油温监测液压系统的工作状态。针对原有液压系统不能提供其工作状态实时监测和自动化程度较低的缺陷,设计了液压监控系统并将其集成到望远镜控制系统中,可实现油压油温数据采集、油压异常报警、油泵自动启停等功能,保证液压轴承的安全运转。介绍了该监控系统的结构和工作原理,阐述了油压、油温数据采集系统的软硬件实现并给出了相应的实验数据和运行结果。理论分析和实验结果表明系统工作正常,数据采集速度快、分辨率高,精度可满足要求,能长期稳定运行。 相似文献
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The telescopes of the new generation allow an archive to be built as a section of data management; nevertheless, careful planning is needed and data handling needs to be designed together with the control system of the telescope itself, both for space-borne and for ground-based facilities. Simulations are essential to understand how observations will be archived, and to build and test an archiving system capable of dealing efficiently with the expected data flow.The TNG (Telescopio Nazionale Galileo) will be one of the first ground-based observing facilities where archiving of both technical and scientific data will be made directly at the telescope as a natural extension of the data handling chain. The results obtained testing the prototype implementation of the archive system at the TNG with a simulated data flow will be shown. 相似文献
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This article introduces the new Indian 2 m telescope which has been designed by MT Mechatronics in a detailed conceptual design study for the Indian Institute of Astrophysics, Bangalore. We describe the background of the project and the science goals which shall be addressed with this telescope. NLST is a solar telescope with high optical throughput and will be equipped with an integrated Adaptive Optics system. It is optimized for a site with the kind of seeing and wind conditions as they are expected at a lake site in the Himalayan mountains. The telescope can also be used for certain night time applications. We also give the scientific rationale for this class of telescope (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献