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Progress of data processing system in JT-60 - Development of remote experiment system

FUSION ENGINEERING AND DESIGN 2006年第15-17期81卷 1775-1778页

作者： Sakata, S. Totsuka, T. Kiyono, K. Oshima, T. Sato, M. Ozeki, T. Japan Atom Energy Res Inst Naka Fus Res Estab Naka Ibaraki 3110193 Japan

JT-60 data processing system (DPS) possesses three-level hierarchy. At the top level of hierarchy is JT-60 inter-shot processor (MSP-ISP), which is a mainframe computer, provides communication with the JT-60 supervisory control system and supervises the internal communication inside the DPS. The middle level of hierarchy has minicomputers and the bottom level of hierarchy has individual diagnostic subsystems, which consist of the CAMAC and VME modules. To meet the demand for advanced diagnostics, the DPS has been progressed in stages from a three-level hierarchy system, which was dependent on the processing power of the MSP-ISP, to a two-level hierarchy system, which is decentralized data processing system (New-DPS) by utilizing the UNIX-based workstations and network technology. At present, replacing the MSP-ISP with a UNIX-based workstation is under way as a final phase in building the New-DPS project. This replacement will be accomplished by October 2005. In addition, remote experiment in JT-60 is considered to be an important issue in extension of the collaborative research among the nuclear fusion community. Technical environments for this task have been developed. The participant from a remote site can set discharge parameters with assistance of the dedicated machine operating status-information tools. (c) 2006 Elsevier B.V. All rights reserved.

关键词： JT-60 data processing system hierarchy UNIX-based remote experiment system

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PRELEMINARY ANALYSIS OF data processing FOR GEOSTATIONARY OCEAN COLOR REMOTE SENSING data FROM GOCI/COMS 30

PRELEMINARY ANALYSIS OF DATA PROCESSING FOR GEOSTATIONARY OC...

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30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS) on Remote Sensing - Global Vision for Local Action

作者： Han, Hee-Jeong Ryu, Joo-Hyung Yang, Chan-Su Cho, Seongick Ahn, Yu-Hwan KORDI KOSC Ansan 426744 Gyeonggi Do South Korea

ISBN: (纸本)9781424495665

The communication, ocean and meteorological satelite (COMS) was launched in 26 June 2010. The geostationary ocean color imager (GOCI), one of the three payloads of COMS, will be examined with its data processing system during in-orbit test (IOT). The GOCI data processing system (GDPS) has been verified in code level and function level and system level in each software development phase. GDPS will check the accuracy and performance of the processing by real-time data processing for the generation of reliable ocean color remote sensing data during IOT. By analysis the result, the deeply verification and modification of data processing algorithm and the configuration will be needed. GDPS will be released to public user as basic data processing software of GOCI/COMS.

关键词： GOCI COMS data processing system GDPS Atmospheric correction verification

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Optimum Composition Design of Environmental Friendly Wood-based Composite

Optimum Composition Design of Environmental Friendly Wood-ba...

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International Conference of Environment Materials and Environment Management

作者： Lin, Hong Xiao, Shengling Li, Chen NE Forestry Univ Harbin Peoples R China

ISBN: (纸本)9780878492596

Taking the wood residues as raw materials, the composition of an environmentally-friendly wood material were designed and optimized, and the effect of such process parameters as PF amount, hot-pressing time, design density on wood composite's properties was studied. Use DPS data processing system for Partial Least-Squares Regressive to analyze the effect of different process parameters on properties and establish mathematical model, so as to optimize the experimental program and ascertain the best conditions, at the same time to verify

关键词： Environmentally-friendly wood material Optimized design data processing system Partial Least-Squares Regressive

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Design and Implementation of a Scalable General High Performance Remote Sensing Satellite Ground processing system on Performance and Function

Design and Implementation of a Scalable General High Perform...

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9th International Conference on Computational Science

作者： Li, Jingshan Liu, Dingsheng Chinese Acad Sci Ctr Earth Observat & Digital Earth Beijing Peoples R China

ISBN: (纸本)9783642019722

This paper discusses design and implementation of a scalable high performance remote sensing satellite ground processing system using a variety of advanced hardware and software application technology on performance and function. These advanced technologies include the network, parallel file system, parallel programming, job schedule, workflow management, design patterns,etc, which make performance and function of remote sensing satellite ground processing system scalable enough to fully meet the high performance processing requirement of multi-satellite, multi-tasking, massive remote sensing satellite data. The "beijing-1" satellite remote sensing ground processing system is introduced as in instance.

关键词： parallel computing remote sensing data processing system clusters computing scalable

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Variation in morphological traits among Loropetalum chinense var. rubrum accessions

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HORTSCIENCE 2007年第2期42卷 399-402页

作者： Bao, Zhiyi Chen, Bo Zhang, Hua Zhejiang Forestry Univ Sch Landscape Architecture Linan 311300 Peoples R China Zhejiang Univ Dept Hort Hangzhou 310029 Zhejiang Prov Peoples R China Zhejiang Forestry Univ Sch Tourism & Hlth Linan 311300 Peoples R China

Loropetalum chinense var. rubrum accessions in China have not been adequately characterized for their morphological traits. Such characterization would be helpful in the development of improved cultivars and in cultivar classification. In this study, the morphological traits of 23 accessions were evaluated in spring, summer, and autumn to determine their phenotypic diversity. Cluster analysis with average distance was performed for the main traits of leaf and flower using data processing system software. The morphological investigation indicated that the number of flowering accessions and the flower number of L. chinense var. rubrum in spring were more than those in autumn. Only one accession (no. 13) yielded several flowers in summer. Some accessions had the same or similar color of leaf or flower in spring and autumn. Two accessions had the same flower color in spring and autumn, whereas others showed slightly different colors in spring and autumn. The 23 entries were grouped into four clusters in spring and five clusters in autumn based on multivariate analysis of nine classification variables. Each cluster had some specific characteristics of its own. Generally, the cluster formed first because of the similarity in leaf color. The accessions with similar flower color formed subclusters within a cluster. These accessions are an important resource for the establishment of a core collection of L. chinense var. rubrum in the world. Several accessions with good qualities were selected and should be further tested for horticultural merit.

关键词： data processing system cluster analysis phenotypic diversity

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Real time processor in JT-60 data processing system

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FUSION ENGINEERING AND DESIGN 2000年第1-2期48卷 225-230页

作者： Sakata, S Koiwa, M Aoyagi, T Matsuda, T Japan Atom Energy Res Inst Naka Fus Res Estab Naka Ibaraki 3110193 Japan Res Org Informat Sci & Technol Tokyo 1050013 Japan

Real time processor, RTP, is a basic subsystem in the JT-60 data processing system and plays an important role in JT-60 feedback control utilizing various diagnostic signals. An original mini-computer system was replaced in 1994 with a workstation. It has 2 CPU's with a real-time parallel UNIX. During the experiment, one CPU communicates with the main computer synchronized with the experimental sequence, and the other executes a real-time process with 1 ms clock. RTP has been upgraded to a compatible RISC workstation with a faster A/D converter in 1997 in response to increased requests of handling the increased signals in more complicated manners. After this upgrade, an elapsed time is reduced to similar to 75% and an I/O time is now dominant. To reduce a CAMAC access time, we try to use a reflective memory for the data transfer. Now RTP handles six kinds of signals to control an electron density, a neutron emission, an electron density and a radiation in the divertor region, and a neutral pressure. RTP will handle five more kinds of signals this year and be used for an advanced control with more complicated processing. (C) 2000 Elsevier Science S.A. All rights reserved.

关键词： real time processor JT-60 data processing system workstation on-line process real-time process feedback control reflective memory

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Automatic vehicle and equipment identification Intermodal goods transport system parameters ISO/TS 17263: 2003

Automatic vehicle and equipment identification Intermodal ...

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标准类型：其他国外标准(光盘)

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Automatic vehicle and equipment identification Intermodal goods transport Numbering and data structures ISO/TS 17262: 2003

Automatic vehicle and equipment identification Intermodal ...

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标准类型：其他国外标准(光盘)

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Modular PC-based data acquisition and processing system for biological signals

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BIOMEDIZINISCHE TECHNIK 1999年第3期44卷 52-57页

作者： Lanmüller, H Sauermann, S Bijak, M Unger, E Univ Vienna Inst Biomed Techn & Phys A-1010 Vienna Austria

The data acquisition system described here is designed for biomedical research and permits the recording of up to eight biological signals simultaneously. A personal computer using the Windows 95 operating system is employed for data monitoring, data processing and analysis during experiments. The system has been designed for reliability, economy, flexibility and ease of handling, with the aim of achieving universal application. To avoid interface incompatibility, problems with transfer protocols and the data formats of commercially available products, analog signals are used for further processing. The individual input channels are electrically isolated from one another and the PC to avoid ground loops, and for reasons of safety. An isolated voltage supply is available for pre-amplifiers and bridges. A bandwidth of 0-5 kHz and the maximum sampling rate of 12.5 kHz suffice to pick up higher frequency signals such as EMG and ENG. The modular software and hardware concepts permit the use of almost any desktop or laptop PC as a central processing unit. The PC handles documentation, data acquisition, data analysis and the preparation of publications. If needed, further analytical functions can be added in modular form. Finally, the option of saving data in the ASCII format permits processing of results with such standard software packages as Excel, Access, Matlab and Origin.

关键词： data acquisition system data processing system biological signals personal computer PC

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A FPGA-based implementation of data acquisition and processing for digital protective relays

A FPGA-based implementation of data acquisition and processi...

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4th International Conference on ASIC

作者： Feng, T Zhang, GQ Wang, JH Geng, YS Zhang, H Xi An Jiao Tong Univ Dept Elect Apparatus Xian 710049 Peoples R China

ISBN: (纸本)0780366778

In order to improve the performance of digital protective relay, a data acquisition and processing system based on FPGA is designed in VHDL and implemented in this paper. They are foul parts in system: ADC control, 32-point FFT module, frequency counter and power meter. It cans control ADC and multiplexer to sample and convert 16-channel voltage and current signal of power system, process the discrete data with FFT algorithms in real time, measure the system frequency and power. So it can supply the processed data for protective relays and measurement All parts can be implemented in an Altera ACEX EP1k100. Using this system, the protective relays will achieve the good characteristic: high reliability and performance, multi-function, small size and cheap cost.

关键词： relay protection power system relaying power system protection field programmable gate arrays fast Fourier transforms data acquisition analogue-digital conversion power meters power engineering computing application specific integrated circuits digital instrumentation FPGA-based implementation data acquisition system data processing system digital protective relay VHDL design ADC control FFT module frequency counter power meter multiplexer control FFT algorithms real time processing Altera ACEX EP1k100

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