共查询到14条相似文献,搜索用时 31 毫秒
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主动反射面是FAST(Five-hundred-meter Aperture Spherical radio Telescope)望远镜的一个重大创新之一,其性能将直接关系到整个望远镜的性能,因此主动反射面的控制需要一个实时高效的控制系统。基于EPICS(Experimental Physics and Industrial Control System)的输入输出控制器(Input/Output Controller,IOC)框架,充分利用EPICS的实时性,根据FAST反射面的控制节点达2 000多个的特点设计了新的记录类型——节点控制器记录,以便于控制器节点IOC的管理以及提高代码的复用,并针对FAST主动反射面密云模型对实际装置进行了仿真、设计和部分测试。 相似文献
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EPICS(Experimental Physics and Industrial Control System)控制系统与商用的SCADA(Supervisory Control and Data Acquisition)软件相比,还没有统一的方式进行软件规范管理。各个科学装置EPICS软件的布局及调用方式千差万别,完全随开发人员的喜好决定。对于诸如钍基熔盐堆(Thorium Molten Salt Reactor,TMSR)、热核聚变堆、质子治疗等项目,软件模块的科学规范管理尤为重要,它能够从结构上保障系统的可靠性、可维护性和易用性。本文结合Linux目录配置标准(Filesystem Hierarchy Standard,FHS)、软件包管理器(Red Hat Package Manager,RPM)以及系统编程等技术,针对TMSR EPICS仪控系统核心软件模块进行目录管理、软件包管理和服务管理,实现核心软件的自动化部署、开机自启动及规范调用。经测试,该套方案运行良好,大量减少了人工操作,有助于实现TMSR仪控系统软件平台的统一和完全自动化。 相似文献
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《核技术(英文版)》2016,(2):58-63
To treat technical problems of data acquisition,alarm management, and historical data archiving of radiation protection control system in Thorium Molten Salt Reactor, a network prototype system was designed based on experimental physics and industrial control system.Radiation level of many locations in Jiading campus of Shanghai Institute of Applied Physics is being continuously monitored, and boundaries of accelerator facilities and radiochemical areas are defined by the access control system. In this paper, we introduce the control system design,including human–machine interfaces, alarm system, historical data archiving system, and the software for access control. The software development followed the standard of Capability Maturity Model Integration(CMMIò) Level3, and the software had passed a third-party test, which indicated that the functionality and the reliability could fulfill the requirements of the radiation protection system. 相似文献
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The main difference between nuclear and generic software is that the risk factor is infinitely greater in nuclear software – if there is a malfunction in the safety system, it can result in significant economic loss, physical damage or threat to human life. However, secure software development environment have often been ignored in the nuclear industry. In response to the terrorist attacks on September 11, 2001, the US Nuclear Regulatory Commission (USNRC) revised the Regulatory Guide (RG 1.152-2006) “Criteria for use of computers in safety systems of nuclear power plants” to provide specific security guidance throughout the software development life cycle. Software Configuration Management (SCM) is an essential discipline in the software development environment. SCM involves identifying configuration items, controlling changes to those items, and maintaining integrity and traceability of them. For securing the nuclear safety software, this paper proposes a Secure SCM Processes (S2CMP) which infuses regulatory security requirements into proposed SCM processes. Furthermore, a Process Flow Diagram (PFD) is adopted to describe S2CMP, which is intended to enhance the communication between regulators and developers. 相似文献
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EPICS是用于开发分布式实时控制系统的软件工具包,广泛应用于粒子加速器、高能物理实验、天文望远镜等大型科学实验设备的控制系统的开发。阐述了EPICS在RTEMS上实现的原理和方法,介绍了以RTEMS作为前端IOC的实时操作系统而实现的EPICS样机系统,为EPICS的研究和EPICS在实际项目中的应用提供了一种新的IOC操作系统平台。 相似文献
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J-TEXT装置是华中科技大学恢复建造的中型托卡马克装置,已于2007年放电运行,其控制系统采用分布式结构,由多个子系统组成。为提高子系统集成、维护和更新的效率,并有效地管理各子系统、控制装置的运行状态及保障设备和人员安全,J-TEXT装置参考ITER CODAC的设计思路,结合J-TEXT装置的需求设计了J-TEXT CODAC系统。J-TEXT CODAC系统为装置各子系统提供统一的设计模型和相关设计标准,使用EPICS软件作为通讯中间层,设计了全局控制系统、时序和同步控制系统、联锁保护系统,并将原有控制系统改造、集成到J-TEXT CODAC系统中。目前该系统已部署在J-TEXT装置上,在2012年春季以来的多轮实验中运行良好。 相似文献
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介绍了实验物理及工业控制系统(Experimental physics and industrial control system,EPICS)基于"标准模型"的分布式控制体系结构、动态数据库及其基于TCP/IP的通道访问协议和构建EPICS控制系统的网络技术策略,描述了一个支持TCP/IP网络设备的通用EPICS设备/驱动器支持程序及其在SSRF二期预研100MeV直线加速器控制系统中的应用. 相似文献
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The control system of SSRF(Shanghai Synchrotron Radiation Facility)is based on EPICS(Experimental Physics and Industrial Control System).Operation data storage for synchrotron radiation facility is important for its status monitoring and analysis.At SSRF,operation data used to be index files recorded by traditional EPICS Channel Archiver.Nevertheless,index files are not suitable for long-term maintenance and difficult for data analysis.Now,RDB Channel Archiver and MySQL are used for SSRF beamline operation data archiving,so as to promote the data storage reliability and usability.By applying a new uploading mechanism to RDB Channel Archiver.its writing performance is improved.A web-based GUI(Graphics User Interface)is also developed to make it easier to access database. 相似文献