基于C#的SECRAL-Ⅱ数据归档系统

超导电子回旋共振离子源II(Superconducting Electron Cyclotron Resonance ion source with Advanced design in Lanzhou-II,SECRAL-II)控制系统采用实验物理与工业控制系统(Experimental Physics and Industrial Control System,EPICS)架构,其中数据归档子系统主要用来存储离子源电源、真空、束诊、水压等数据,便于技术人员进行在线和离线数据分析,是其控制系统的重要组成部分。EPICS自带的Channel Archiver存储格式固定,无法满足用户的实际使用需求。使用C#实现了EPICS架构下变量(Process Variable,PV)历史数据的存储功能,结合Oracle数据库技术,使得在存储PV变量的策略上可以更加灵活控制。同时,实现了基于超文本预处理器(Hypertext Preprocessor,PHP)的文件管理系统,用于历史数据文件的管理。测试及运行结果表明系统可以很好地满足研究人员对于历史数据的归档要求和研究需求。     

EPICS环境下数字超声流量计网络接口设计与应用

针对钍基熔盐堆分布控制系统(Distributed Control System,DCS)中数字超声流量计的实验物理和工业控制系统(Experimental Physics and Industrial Control System,EPICS)网络接入需求,本文提出了一种数字以太网接口设计方案,实现上位机操作员接口(Operator Interface,OPI)层面的流量数据实时监测。硬件使用DM9000以太网芯片,扩展连接到TMS320F28335为控制器的数字化超声流量计平台上。DCS软件设计以超声流量计作为客户端,与运行EPICS服务器程序的上位机构成客户端/服务器结构,自检结果表明,二者之间可进行可靠的传输控制协议(Transmission Control Protocol,TCP)通信。在流量标定平台上的实际测试进一步验证了超声流量计与上位机实时数据通信的可靠性,实现了EPICS环境下超声流量计的网络化功能。     

基于千兆以太网的CSNS RCS射频分布式控制系统架构

中国散裂中子源(China Spallation Neutron Source,CSNS)快循环同步加速器的射频系统的远程控制系统采用基于千兆以太网的分布式体系结构,其软件架构使用国际加速器界广泛使用的开源软件工具EPICS(Experimental and Industrial Control System)进行开发。系统主要由CPCI低电平控制器、高功率四极管放大器和偏流源机器状态监控网络、联锁保护系统、中控中转服务器和人机交互界面组成。论文主要介绍了该系统的基本功能和拓扑结构,以及各个组成部分软硬件的设计和实现。     

基于MySQL的CSNS离子源实验室Channel Archiver应用研究

中国散裂中子源(China Spallation Neutron Source,CSNS)离子源控制系统是在实验物理及工业控制系统(Experimental Physics and Industrial Control System,EPICS)软件框架下开发的,为了保存、检索和分析CSNS离子源实验室各种被控设备的历史数据,搭建了基于MySQL的Channel Archiver。在简要介绍CSNS离子源控制系统和基于关系数据库(Relational Database,RDB)的Channel Achiver的基础上,详细描述了基于MySQL的CSNS离子源实验室Channel Archiver的硬件配置和软件集成的应用研究。     

基于Bluesky的荧光面扫描技术

上海光源硬X射线微聚焦光束线站的控制及数据采集系统均是在EPICS(Experiment Physics and Industrial Control System)环境下开发的,但基于EPICS软件的荧光扫描系统无法满足荧光面扫描实验的一些特定要求,包括扫描数据实时显示、变步长扫描、多个任意位置样品连续扫描等。对此,采用了Bluesky与EPICS软件相结合的方法,基于Python语法结构设计了控制和数据采集系统,集成了运动控制、光强探测和荧光信号采集功能,实现了数据表格的实时显示、荧光图谱的绘制、自适应步长扫描和峰值数据自动计算、多个任意位置样品连续扫描和二维方形螺旋扫描等荧光面扫描相关技术。该系统使用户简单操作即可完成复杂的荧光面扫描,提高了实验灵活性和实验效率。     

生物X射线小角散射实验站控制和数据采集系统

生物X射线小角散射光束线站(Biological Small Angle X-Ray Scattering,BioSAXS)是国家蛋白质科学研究上海设施五线六站之一,运动控制和数据采集系统是BioSAXS实验站建设的重要组成部分。介绍了BioSAXS实验站运动控制和数据采集系统,设计实现了基于EPICS(Experimental Physics and Industrial Control System)的运动控制系统,开发了EPICS下的Pilatus探测器的数据采集软件。通过对运动控制、探测器数据采集和光强检测等控制操作界面进行集成,形成了统一的用户界面,并在BioSAXS实验站的调试和运行中得到成功应用。该控制软件界面友好,操作简单,其功能和性能通过了实验验证,满足了BioSAXS线站对运动控制和数据采集系统的需求。     

注入器Ⅱ离子源控制系统设计

为实现离子源设备的远程监控、束流强度可调和当设备发生异常时的快速切束控制,采用PLC、串口服务器和自制FPGA控制板卡设计了基于EPICS架构的离子源控制系统。同时,改进了原有PLC和电机系统的EPICS IOC程序。整套系统工作可靠、稳定,完全满足注入器Ⅱ系统的调试运行需求。快速切束时间小于10 μs,完全切束动作在60 s内完成。     

EPICS IOC与EtherCAT设备通信的一种方法

Ether CAT(Ethernet Control Automation Technology)是一种用于工业自动化的实时以太网现场总线协议。通过使用OPC(Object Linking and Embedding for Process Control)Gateway驱动程序实现了EPICS(Experimental Physics and Industrial Control System)IOC(Input/Output Controller)与Ether CAT设备的通信,从而使Ether CAT成为加速器控制系统中对实时性要求很高的高速控制系统的一种解决方案。在简要介绍EPICS、Ether CAT、OPC及OPC Gateway的基础上,对使用OPC Gateway驱动程序实现EPICS IOC与Ether CAT设备通信进行了测试。结果表明,EPICS IOC可通过OPC Gateway驱动程序与Ether CAT设备正常通信。     

一种广覆盖的实验室安全监控系统设计

为了保障钍基熔盐堆核能系统(Thorium Molten Salt Reactor Nuclear Energy System, TMSR)项目的实验安全运行,需要构建一套实验室安全监控系统,该系统需要解决以下问题:实验室地域覆盖广、环境差异大、信号种类繁多、软件接口复杂。现有的商业监控系统很难满足以上需求,因此开发了一套基于Node-Web技术的实验室安全监控系统。展示了该系统的结构框架,并阐述了基于视频接口进行软件开发的流程。该系统实现了EPICS(ExperimentalPhysicsandIndustrialControlSystem)信号采集系统和海康威视(Hikvsion)视频采集系统的集成,通过Node-Web前端可视化接口的开发,实现了监测界面中EPICS变量和视频流联动的功能。系统具有分布式、网络化、扩展性好、低成本的特点,可适用于建设大型科研机构实验室安全监控系统。     

实验物理和工业控制系统（EPICS）与LabVIEW接口的应用研究

EPICS(Experimental Physics and Industrial Control System)是一个大型实验物理和加速器控制系统组态软件工具,北京正负电子对撞机重大改造工程(BEPCⅡ)的控制系统,是基于EPICS开发的.在Windows PC机上使用LabVIEW编程,开发采用多种总线形式的前端I/O设备驱动,完成数据采集和数据分析十分方便,已广泛用于测控领域.使用美国散裂中子源开发的共享内存接口,可以将前端的Windows/LabVIEW系统视为既EPICS IOC(Input Output Controller)纳入到职EPICS控制系统,实现数据共享.     

A simple multiprocessor management system for event-parallelcomputing

Offline software using Transmission Control Protocol/Internet Protocol (TCP/IP) sockets to distribute particle physics events to multiple UNIX/RISC workstations is described. A modular, building block approach was taken that allowed tailoring to solve specific tasks efficiently and simply as they arose. The modest, initial cost was having to learn about sockets for interprocess communication. This multiprocessor management software has been used to control the reconstruction of eight billion raw data events from Fermilab Experiment E791     

The development of data acquisition and processing application system for RF ion source

As the key ion source component of nuclear fusion auxiliary heating devices, the radio frequency(RF) ion source is developed and applied gradually to offer a source plasma with the advantages of ease of control and high reliability. In addition, it easily achieves long-pulse steady-state operation. During the process of the development and testing of the RF ion source, a lot of original experimental data will be generated. Therefore, it is necessary to develop a stable and reliable computer data acquisition and processing application system for realizing the functions of data acquisition, storage, access, and real-time monitoring. In this paper, the development of a data acquisition and processing application system for the RF ion source is presented. The hardware platform is based on the PXI system and the software is programmed on the Lab VIEW development environment. The key technologies that are used for the implementation of this software programming mainly include the long-pulse data acquisition technology, multithreading processing technology, transmission control communication protocol, and the Lempel–Ziv–Oberhumer data compression algorithm. Now, this design has been tested and applied on the RF ion source. The test results show that it can work reliably and steadily. With the help of this design, the stable plasma discharge data of the RF ion source are collected,stored, accessed, and monitored in real-time. It is shown that it has a very practical application significance for the RF experiments.     

可编程逻辑控制系统在北京自由电子激光装置的实验物理和工业控制系统中的应用

在北京自由电子激光(BFEL)装置的搬迁改造工程中,开关机系统的控制采用基于实验物理和工业控制系统(EPICS)的可编程逻辑控制(PLC)控制系统,它具有安全可靠、操作简单、易于扩展、便于通讯等优点.本文介绍了该控制系统的设计和开发,包括系统软硬件的结构设计以及系统的EtherNet/IP网络通讯.     

辐射成像无损检测系统远程控制和图像实时传输网络的实现

将网络和通信技术引入数字辐射成像无损检测系统，建立一个基于TCP／IP协议的网络结构，采用Client/Server的通信模型，实现射线无损检测系统的网络控制和实时无程图像传输。     

Design of Experimental Data Publishing Software for Neutral Beam Injector on EAST

Neutral Beam Injection(NBI) is one of the most effective means for plasma heating.Experimental Data Publishing Software(EDPS) is developed to publish experimental data to get the NBI system under remote monitoring.In this paper,the architecture and implementation of EDPS including the design of the communication module and web page display module are presented.EDPS is developed based on the Browser/Server(B/S) model,and works under the Linux operating system.Using the data source and communication mechanism of the NBI Control System(NBICS),EDPS publishes experimental data on the Internet.     

CompactPCI／Linux Platform in FTU Slow Control System

In large fusion experiments, such as tokamak devices, there is a common trend for slow control systems. Because of complexity of the plants, the so-called ‘Standard Model‘ (SM) in slow control has been adopted on several tokamak machines. This model is based on a three-level hierarchical control: 1) High-Level Control (HLC) with a supervisory function; 2) Medium-Level Control (MLC) to interface and concentrate I/O field equipments; 3) Low-Level Control (LLC) with hard real-time I/O function, often managed by PLCs. FTU control system designed with SM concepts has underwent several stages of developments in its fifteen years duration of runs. The latest evolution was inevitable, due to the obsolescence of the MLC CPUs, based on VME-MOTOROLA 68030 with OS9 operating system. A large amount of C code was developed for that platform to route the data flow from LLC, which is constituted by 24 Westinghouse Numalogic PC-700 PLCs with about 8000 field-points, to HLC, based on a commercial Object-Oriented Real-Time database on Alpha/CompaqTru64 platform. Therefore, we have to look for cost-effective solutions and finally a CompactPCI-Intel x86 platform with Linux operating system was chosen. A software porting has been done, taking into account the differences between OS9 and Linux operating system in terms of Inter/NetworkProcesses Communications and I/O multi-ports serial driver. This paper describes the hardware/software architecture of the new MLC system, emphasizing the reliability and the low costs of the open source solutions. Moreover, a huge amount of software packages available in open source environment will assure a less painful maintenance, and will openthe way to further improvements of the system itself.     

Design and development of a synchronized operation control system for Thomson scattering diagnostic on J-TEXT

A Thomson scattering diagnostic system is under construction at the Joint Texas Experimental Tokamak (J-TEXT).A 1064 nm Nd:YAG laser with 50 Hz repetition rate is used as the laser source.We have used a software for careful and precise control of the laser through serial communication.A time sequence operating system has been developed to synchronize the laser control and data acquisition system with the central control system (CSS).The system operates commands from the CSS of J-TEXT and generates triggers for the laser and data acquisition system in the proper sequence.It also measures an asynchronous time value that is needed for accurate time stamping.All functions are served by a field-programmable gate array development platform that is suitable for high-speed data and signal processing applications.Several embedded peripherals,including Ethernet and USB 2.0,provide communication with the CSS and the server.     

The development of data acquisition and control system for extraction power supply of prototype RF ion source

A 16 kV/20 A power supply was developed for the extraction grid of prototype radio frequency (RF) ion source of neutral beam injector.To acquire the state signals of extraction grid power supply (EGPS) and control the operation of the EGPS,a data acquisition and control system has been developed.This system mainly consists of interlock protection circuit board,photoelectric conversion circuit,optical fibers,industrial compact peripheral component interconnect (CPCI) computer and host computer.The human machine interface of host computer delivers commands and data to program of the CPCI computer,as well as offers a convenient client for setting parameters and displaying EGPS status.The CPCI computer acquires the status of the power supply.The system can turn-off the EGPS quickly when the faults of EGPS occur.The system has been applied to the EGPS of prototype RF ion source.Test results show that the data acquisition and control system for the EGPS can meet the requirements of the operation of prototype RF ion source.