The control and monitor system for the BESⅢ ETOF/MRPC beam test

A test system is developed for the BESIII ETOF/MRPC beam tests of data acquisition, environment monitoring and automatic control. The software framework is based on the CAMAC bus, VME bus and Serial Port,which are responsible for communications with the detectors. The monitor system works well in the beam test.     

用于普通能谱实验室的基于VME总线的数据获取系统研制

介绍了一套基于VME总线的实验室数据获取系统的设计及应用。此系统主要针对普通核物理或探测器实验室的实验探测器系统,获取系统硬件用通用ADC插件作为模数转换,用基于VME总线的单板机算计进行数据传输。获取程序基于ROOT数据处理平台,可实现在线监控数据,并使用直方图等数据格式将数据存储。通过这套系统获得的碲锌镉探测器对241Am的59 keVγ射线能谱,数据获取速率达4 MB/s。这套数据获取系统可很好地应用在探测器测试及相关实验领域。     

An integrated data acquisition and analysis system at GSI

The GOOSY data acquisition and analysis system has been extended to handle experimental setups and data from heavy-ion experiments at high energies. A front-end system has been designed and built. It is a VME-based multiprocessor system connected to CAMAC and FASTBUS by a standard VME subsystem bus. The system allows preanalysis and filtering of the raw data. The architecture of the system is presented, and a status report is given. Particular attention is given to integration of the front-end processors, event processing in the front-end system, and the VME network processor. Event data transfer from VME to VAX, test procedures, experimental setup control, and software used for the VME processors are briefly considered     

用于核子微探针的多站多参量数据系统

详细讨论了用SUN工作站和VME计算机总线组成的核子微探多站多参量数据系统,包括系统硬件、数据获取和分析软件等。     

A VME/VMX - CAMAC Interface and Crate Controller

A VME/VMX bus interface has been designed and built to interface a VME-based data acquisition system to CAMAC. The interface communicates via a differential bus with a companion unit that functions as a CAMAC crate controller. The interface maps both VMiE and VMX address cycles into appropriate CAMAC cycles. Special diagnostic features have been incorporated in the design to allow quick fault detection and location.     

Multiprocessor data acquisition system

A VME-based multiprocessor system primarily designed as the data acquisition system for a position-sensitive, driftless, gas proportional scintillation counter for X-ray astronomy is described. The counter is built around a nine-photocathode photomultiplier tube. The system was specified so that an external signal triggers the acquisition of nine analog data channels at a 20-MHz rate, with all channels operating in parallel and synchronized. For each data frame a preprocessing algorithm runs in each processor and is followed by a validation routine in the tenth processor. According to the validation decision data may be discarded or collected by the host VME computer. For this purpose a special parallel architecture was developed in which a digital signal processor is dedicated to each data channel, taking care of the acquisition, the preprocessing, and the validation algorithms. Physically the system consists of a set of VME boards each containing two TMS320C26 DSPs and two 20-MHz data acquisition channels     

New CAMAC based data acquisition and beam control system for Lund nuclear microprobe

A new CAMAC based data acquisition system has been installed at the Lund Nuclear Microprobe facility. This paper reports on the development and present status of the data acquisition system. The system is a true multiparameter CAMAC based system with fast Fera bus readout and in crate memory buffer. The user interface is based on Sparrow Kmax software for a Power Macintosh platform. The system read out and tag the event data with position on-line, which make fast on-line monitoring of spectra or element maps possible.Simultaneously, all data can be saved event by event for off-line analysis. The beam scanning part is software controlled through a timed D/A converter, this allows fast scanning of the beam. With a CCD-camera and video card the area to be analysed could be defined directly from the image, and the sample position can be moved. Any kind of irregular scan patterns could be defined.     

SC／GPM－68K VME系统控制器及通用主设备

ＶＭＥ系统控制器和作为总线主设备的数据处理装置是构成系统最基本的不可缺少的模块。本文介绍了廉价的ＳＣ／ＧＰＭ－６８Ｋ型ＶＭＥ系统控制器及通用主设备的硬件设计特点及其交叉Ｃ和交叉汇编用户程序的开发环境。     

A VME multiprocessor data acquisition system combining a UNIXworkstation and real-time microprocessors

A data acquisition system combining a UNIX workstation and one or several real-time microprocessors has been designed and built for the tandem accelerator. The hardware and software options chosen for reading, processing, storing, and displaying real-time experimental data are detailed. The fixed components of the hardware architecture are the VME bus for data processing and the CAMAC system for transferring digital data. A multitask multiprocessor software based on shared memory and message passing has been developed around a mixed UNIX/pSOS kernel     

VME总线在线"从串模式"配置FPGA的设计与实现

本文介绍了在线配置FPGA硬件设计及工作原理.所设计的系统可以使FPGA的配置数据通过VME总线写入到一片Flash Memory中,并在加电时或使用命令的方式通过Flash Memory来配置FPGA.另外,FPGA的配置数据还可以直接保存在PC机终端上,而不是Flash Memory中,在需要时,通过VME总线直接将配置数据配置给FPGA.     

VIC068A在电源控制系统中的应用

VME总线为单处理器或多处理器的高速并行传输建立了标准体系规范,利用桥接芯片VIC068A的硬件逻辑连接实现网络处理芯片与VME背板总线之间的通讯,将后台计算机数据库及前端设备通过网络和VME总线紧密地连接起来,实现数据的快速获取与给定.     

New data acquisition system for the focal plane polarimeter of theGrand Raiden spectrometer

This paper describes a new data acquisition system for the focal plane polarimeter of the Grand Raiden spectrometer at the Research Center for Nuclear Physics (RCNP) in Osaka, Japan. Data are acquired by a Creative Electronic Systems (CES) Starburst, which is a CAMAC auxiliary crate controller equipped with a Digital Equipment Corporation (DEC) J11 microprocessor. The data on the Starburst are transferred to a VME single-board computer. A VME reflective memory module broadcasts the data to other systems through a fiber-optic link. A data transfer rate of 2.0 Mbytes/s between VME modules has been achieved by reflective memories. This rate includes the overhead of buffer management. The overall transfer rate, however, is limited by the performance of the Starburst to about 160 Kbytes/s at maximum. In order to further improve the system performance, we developed a new readout module called the Rapid Data Transfer Module (RDTM). RDTM's transfer data from LeCroy PCOS III's or 4298's, and FERA/FERET's directly to CES 8170 High Speed Memories (HSM) in VME crates, the data transfer rate of the RDTM from PCOS III's to the HSM is about 4 Mbytes/s     

基于VME总线的触发硬件测试系统设计

介绍了VME手动机箱控制器与VME通道显示板的设计.在设计中充分利用FPGA的特点,因而该系统具有简单,可靠性高,以及灵活可变的特点.     

基于PC机的VME总线从设备调试系统

本文介绍了一种基于ＰＣ机的ＶＭＥ从设备调试系统，它利用ＰＣ机作为ＶＭＥ总线主设备，通过软件编程产生适当的ＶＭＥ总线时序，可对ＶＭＥ从设备模块进行调试和功能测试。     

VME Multiprocessor System for Data Acquisition at OSIRIS

A VME multiprocessor system for data acquisition and data display utilizing several MC68XXX based CPUs and VMEbuses is described. The design of the VME system was stimulated by the data handling requirements of experiments using the anti-Compton spectrometer OSIRIS, i.e. data storage on optical disks and on-line accumulation of large 2-dimensional histograms (4096 x 4096 channels). Due to the general approach the VME system is easily applicable for other nuclear physics experiments.     

基于VME总线的高速A／D缓冲系统的研制

本文介绍一种基于ＶＭＥ总线的高速Ａ／Ｄ缓冲系统的原理和结构。着重阐述了高速数据采集技术，高速ＦＩＦＯ缓冲技术，存储器总线切换技术，ＶＭＥ及ＰＣ／ＩＳＡ总线接口技术在本系统中的成功应用。     

Designing fault-tolerant real-time computer systems with diversified bus architecture for nuclear power plants

Fault-tolerant real-time computer (FT-RTC) systems are widely used to perform safe operation of nuclear power plants (NPP) and safe shutdown in the event of any untoward situation. Design requirements for such systems need high reliability, availability, computational ability for measurement via sensors, control action via actuators, data communication and human interface via keyboard or display. All these attributes of FT-RTC systems are required to be implemented using best known methods such as redundant system design using diversified bus architecture to avoid common cause failure, fail-safe design to avoid unsafe failure and diagnostic features to validate system operation. In this context, the system designer must select efficient as well as highly reliable diversified bus architecture in order to realize fault-tolerant system design. This paper presents a comparative study between CompactPCI bus and Versa Module Eurocard (VME) bus architecture for designing FT-RTC systems with switch over logic system (SOLS) for NPP.     

一种快速数据采集处理系统

本文介绍了一种快速数据采集处理系统，它是以微处理机４８６（５８６）主板为基础，配以必要的硬件和外设而组成，通过系统的软件设计及软硬件的最佳配合使其系统受控式的自动运行，文中对系统的组成，功能，特点，软硬件设计及有关技术问题进行了叙述和讨论。     

A multi-parameter system for acquisition, monitoring, and analysis of scanning ion microprobe data

The multi-parameter data-acquisition system for the Eindhoven scanning ion microprobe set-up is described. The front-end part of the system is based on an M68030 in VME and handles real-time data acquisition, experiment control and data transport. It is linked to a DEC ALPHA-AXP workstation for data storage, on-line data monitoring and data analysis and off-line data analysis. The system can be used to apply simultaneously the micro-PIXE, NBS and NFS techniques to determine elemental concentration distributions on biomedical samples, but can also be used for coincident ion scattering experiments and time or dose dependent studies of e.g. ion-beam induced radiation damage.