2007 15th IEEE-NPSS Real-Time Conference最新文献

筛选
英文 中文
Upgrade of the Level 1 Global Trigger System in the Belle Experiment 贝尔实验中一级全局触发系统的升级
2007 15th IEEE-NPSS Real-Time Conference Pub Date : 2007-11-12 DOI: 10.1109/RTC.2007.4382806
E. Won, H. Ha, Y. Iwasaki
{"title":"Upgrade of the Level 1 Global Trigger System in the Belle Experiment","authors":"E. Won, H. Ha, Y. Iwasaki","doi":"10.1109/RTC.2007.4382806","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382806","url":null,"abstract":"In this paper, we describe design and development of the new global decision logic units for the Belle detector at the KEK B-factory. The new units consist of two identical 9U VME modules which are designed using the programmable logic techniques. Performance tests of these new modules and existing system are compared and showed identical results. We also examine possibility of the implementation of an artificial neural network algorithm to the new trigger board for a more efficient data acquisition.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125426739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Standardized Communication in the Control System of the Experiment WENDELSTEIN 7-X WENDELSTEIN 7-X实验控制系统中的标准化通信
2007 15th IEEE-NPSS Real-Time Conference Pub Date : 2007-11-12 DOI: 10.1109/RTC.2007.4382734
J. Schacht, H. Laqua, M. Lewerentz, A. Spring, S. Pingel, G. Kuhner
{"title":"Standardized Communication in the Control System of the Experiment WENDELSTEIN 7-X","authors":"J. Schacht, H. Laqua, M. Lewerentz, A. Spring, S. Pingel, G. Kuhner","doi":"10.1109/RTC.2007.4382734","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382734","url":null,"abstract":"The superconducting stellarator experiment W7-X has a control system which has been designed for steady state operation as well as for pulsed operation. Each technical component and each \"diagnostic\" system including its data acquisition will have its own control system permitting autonomous operation for commissioning and testing. During the experimental sessions the activity of these components will be coordinated by a Central Control System and the machine runs more or less automatically with predefined programs. A local control component has a number of internal and external communication interfaces which are necessary for data exchange with the operational management system, the segment control system and with the safety system. These interfaces are used to send and receive messages of different types (commands, status information, raw data, and analyzed data). The paper presents a description of the structure of a local control component and a discussion of its communication interfaces.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"424 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121458601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Data Acquisition Backbone Core DABC 数据采集骨干核心DABC
2007 15th IEEE-NPSS Real-Time Conference Pub Date : 2007-11-12 DOI: 10.1109/RTC.2007.4382824
S. Linev, H. G. Essel, Nikolaus Kurz, S. Linev
{"title":"Data Acquisition Backbone Core DABC","authors":"S. Linev, H. G. Essel, Nikolaus Kurz, S. Linev","doi":"10.1109/RTC.2007.4382824","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382824","url":null,"abstract":"For the new experiments at FAIR like CBM new concepts of data acquisition systems have to be developed like the distribution of self-triggered, time stamped data streams over high performance networks for event building. The data acquisition backbone core DABC is designed for FAIR detector tests, readout components test, data flow investigations, and DAQ controls. All kinds of data channels (front-end systems) are connected by plug-ins into functional components of DABC like data input, combiner, scheduler, event builder, analysis and storage. On the other hand, the current GSI DAQ system MBS with its huge installed hardware base (about 100 installed, 50% outside GSI) must be integrated in any new DAQ concept. After detailed simulations now real tests (on InfiniBand clusters) of event building over networks had been performed. Several software packages (uDAPL, OpenFabric IB Verbs, MPI2) have been used to measure the performance of InfiniBand. One can achieve about 80% of the bidirectional nominal IB bandwidth of 1 GByte/s. To achieve real reliable performance with IB one needs the optional real time extensions of the latest Linux kernel 2.6.21. Some infrastructure components of the XDAQ package developed for the CMS experiment have been evaluated for DABC. The development of key components is supported by the FutureDAQ project of the European Union (FP6 I3HP JRA1).","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121505867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Design of an Intelligent Front-end Signal Conditioning Circuit for IR Sensors 红外传感器智能前端信号调理电路的设计
2007 15th IEEE-NPSS Real-Time Conference Pub Date : 2007-11-12 DOI: 10.1109/RTC.2007.4382789
G. de Areas, M. Ruiz, J. López, R. Gutiérrez, V. Villamayor, L. Gomez, M. Montojo
{"title":"Design of an Intelligent Front-end Signal Conditioning Circuit for IR Sensors","authors":"G. de Areas, M. Ruiz, J. López, R. Gutiérrez, V. Villamayor, L. Gomez, M. Montojo","doi":"10.1109/RTC.2007.4382789","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382789","url":null,"abstract":"This paper presents the design of an intelligent front-end signal conditioning system for IR sensors. The system has been developed as an interface between a PbSe IR sensor matrix and a TMS320C67x digital signal processor. The system architecture ensures its scalability so it can be used for sensors with different matrix sizes. It includes an integrator based signal conditioning circuit, a data acquisition converter block, and a FPGA based advanced control block that permits including high level image preprocessing routines such as faulty pixel detection and sensor calibration in the signal conditioning front-end. During the design phase virtual instrumentation technologies proved to be a very valuable tool for prototyping when choosing the best A/D converter type for the application. Development time was cut off significantly due to the use of this technology.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"192 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114058129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
The SVT Bypass for a Forward Lepton wide coverage in the CDF Trigger 在CDF触发器中,前向轻子宽覆盖的SVT旁路
2007 15th IEEE-NPSS Real-Time Conference Pub Date : 2007-11-12 DOI: 10.1109/RTC.2007.4382822
A. Annovi, J. Bellinger, M. Casarsa, P. Catastini, A. Cerri, M. Dell'Orso, P. Giannetti, C. Ginsburg, T. Liu, M. Piendibene, L. Rogondino, L. Sartori, S. Torre
{"title":"The SVT Bypass for a Forward Lepton wide coverage in the CDF Trigger","authors":"A. Annovi, J. Bellinger, M. Casarsa, P. Catastini, A. Cerri, M. Dell'Orso, P. Giannetti, C. Ginsburg, T. Liu, M. Piendibene, L. Rogondino, L. Sartori, S. Torre","doi":"10.1109/RTC.2007.4382822","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382822","url":null,"abstract":"The silicon-vertex-trigger (SVT) [1,2] at CDF is made of two pipelined processors: the associative-memory, AM [3,4], finding low precision tracks (roads) and the track-fitter, TF, refining the track quality with high-precision fits. We propose to extend the SVT use, now mostly focused on B-physics, to high-PT physics as a tracker in the forward/backward region. The upgraded SVT structure is easily improved working on firmware, or connecting the existing general purpose FPGA-based SVT boards, named Pulsars, with other Pulsars in a lego-structure. In particular, SVT can easily extend the prompt-lepton acceptance providing silicon-only tracks where the drift-chamber coverage is poor or missing (pseudorapidity larger than 1). Since prompt-leptons from high-PT events do not require precise impact parameter measurement, we don't need to measure these tracks with the maximum silicon detector resolution. We enlarge the use of the AM, to detect tracks above a defined PT threshold. We propose a bypass that brings the new thin roads found by AM, directly to the level-2 CPUs. While the slower full-resolution path (TF) will have to digest the normal AM road production, four new Pulsars will deliver new roads from AM to L2-CPU. All the hardware exists, needs only to be assembled. We present the bypass architecture, the forward-track quality and their possible use in Higgs triggers. The system timing is estimated from simulation on real data and measurements on test stand.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127619771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First beam operation of the CMS calorimeter trigger synchronization boards CMS量热计的第一束操作触发同步板
2007 15th IEEE-NPSS Real-Time Conference Pub Date : 2007-11-12 DOI: 10.1109/RTC.2007.4382862
A. David, N. Almeida, J. D. da Silva, P. Silva, J. Varela
{"title":"First beam operation of the CMS calorimeter trigger synchronization boards","authors":"A. David, N. Almeida, J. D. da Silva, P. Silva, J. Varela","doi":"10.1109/RTC.2007.4382862","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382862","url":null,"abstract":"The CMS experiment uses information from its electromagnetic and hadronic calorimeters and muon detectors to decide whether to readout the whole detector. For such a task to be successful, all trigger primitives pushed through the trigger decision tree must be flawlessly aligned in time for operation at 40 MHz. Both calorimeters in CMS use the Synchronization Link Board for this purpose. In this article we report on the results of tests of this board using realistic beam conditions, which demonstrate the soundness of the adopted architecture and synchronization principle.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"505 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132542527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
PXI Express for Real-Time Control and High Performance Acquisition (April 2007) PXI Express用于实时控制和高性能采集(2007年4月)
2007 15th IEEE-NPSS Real-Time Conference Pub Date : 2007-11-12 DOI: 10.1109/RTC.2007.4382851
A. Ullrich
{"title":"PXI Express for Real-Time Control and High Performance Acquisition (April 2007)","authors":"A. Ullrich","doi":"10.1109/RTC.2007.4382851","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382851","url":null,"abstract":"Since its release in 1998, the PXI industry standard has quickly gained adoption in a variety of measurement and automation systems including Fermilab's semiconductor quench detection and protection system. Two motivators for adopting the PXI platform are the high-speed PCI data communication bus and integrated timing and triggering features. Now, as the commercial PC industry improves bus bandwidth by evolving PCI to PCI express, PXI has evolved by integrating PCI express into the PXI standard to create PXI express. This paper gives an overview of the PXI platform including the data bus and timing and triggering features of PXI and PXI express.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134214979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Using FPGAs to Generate Gigabit Ethernet Data Transfers and Studies of the Network Performance of DAQ Protocols 利用fpga生成千兆以太网数据传输及DAQ协议的网络性能研究
2007 15th IEEE-NPSS Real-Time Conference Pub Date : 2007-11-12 DOI: 10.1109/RTC.2007.4382745
D. Bailey, R. Hughes-Jones, M. Kelly
{"title":"Using FPGAs to Generate Gigabit Ethernet Data Transfers and Studies of the Network Performance of DAQ Protocols","authors":"D. Bailey, R. Hughes-Jones, M. Kelly","doi":"10.1109/RTC.2007.4382745","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382745","url":null,"abstract":"FPGA devices have become common in data acquisition (DAQ) systems for high energy particle physics experiments. The next generation of DAQ systems will use FPGAs with commercial networking components. The use of FPGAs to generate gigabit-Ethernet data streams has been investigated using a Virtex 4 development system to generate raw Ethernet packets over both fibre and copper links. Details of the firmware developed to drive the links are presented. Throughput and packet loss over standard Ethernet networks to PCs have been measured using different request-response protocols. Sequential request and group request DAQ data collection protocols have been implemented and initial scaling tests are reported.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130287488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
The LHCb Farm Monitoring and Control System LHCb农场监控系统
2007 15th IEEE-NPSS Real-Time Conference Pub Date : 2007-11-12 DOI: 10.1109/RTC.2007.4382731
D. Galli, F. Bonifazi, A. Carbone, C. Gaspar, D. Gregori, U. Marconi, G. Peco, V. Vagnoni, E. van Herwijnen
{"title":"The LHCb Farm Monitoring and Control System","authors":"D. Galli, F. Bonifazi, A. Carbone, C. Gaspar, D. Gregori, U. Marconi, G. Peco, V. Vagnoni, E. van Herwijnen","doi":"10.1109/RTC.2007.4382731","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382731","url":null,"abstract":"The LHCb experiment at CERN will have an online trigger farm composed of up to 2000 PCs. In order to monitor and control each PC and to supervise the overall status of the farm, a Farm Monitoring and Control System (FMC) was developed. The FMC is based on DIM (Distributed Information Management System) as network communication layer, it is accessible both through a command line interface and through the PVSS (Prozessvisualisierung und Steuerung) graphical interface, and it is interfaced to the Finite State Machine (FSM) of the LHCb Experiment Control System (ECS) in order to manage anomalous farm conditions. The FMC is an integral part of the ECS, which is in charge of monitoring and controlling all on-line components; it uses the same tools (DIM, PVSS, FSM, etc.) to guarantee its complete integration and a coherent look and feel throughout the whole control system.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127559722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Timing improvement by low-pass filtering and linear interpolation for the LabPETTM scanner LabPETTM扫描仪的低通滤波和线性插值时序改进
2007 15th IEEE-NPSS Real-Time Conference Pub Date : 2007-11-12 DOI: 10.1109/RTC.2007.4382813
R. Fontaine, F. Lemieux, N. Viscogliosi, M. Tétrault, M. Bergeron, J. Riendeau, P. Bérard, J. Cadorette, R. Lecomte
{"title":"Timing improvement by low-pass filtering and linear interpolation for the LabPETTM scanner","authors":"R. Fontaine, F. Lemieux, N. Viscogliosi, M. Tétrault, M. Bergeron, J. Riendeau, P. Bérard, J. Cadorette, R. Lecomte","doi":"10.1109/RTC.2007.4382813","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382813","url":null,"abstract":"Digital processing for positron emission tomography (PET) scanners commonly relies on low frequency sampling (≪65 MHz) for reducing power consumption. Timestamps must then be interpolated between samples to achieve adequate time resolution for coincidence detection of annihilation radiation. A low-pass filter based interpolation algorithm adding up to 31 samples between original samples was designed to improve both the energy and timing resolution of the LabPETTM scanner. An energy resolution refinement of ˜2 bits can be achieved with such a technique. The better estimation of triggering threshold leads to a more accurate timestamp generation. Timestamp accuracy was investigated as a function of trigger level (5-50% of maximum value). With the trigger threshold set at 20%, coincidence time resolution of ˜5.0 ns for LYSO-LYSO and ˜9.6 ns for LGSO-LGSO are obtained. A real time implementation of the algorithm was achieved in a Xilinx FPGA.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122693325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信