基于EPICS的SHINE束线站定时设备控制系统  

Development and implementation of an EPICS-based timing equipment control system for SHINE beamlines and endstations

作　　者：曾孟麒 尹亮 尹聪聪 怀平 ZENG Mengqi;YIN Liang;YIN Congcong;HUAI Ping(ShanghaiTech University,Shanghai 200120,China;Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China)

机构地区：[1]上海科技大学,上海200120 [2]中国科学院上海高等研究院,上海201210

出　　处：《核技术》2023年第7期23-31,共9页Nuclear Techniques

摘　　要：上海硬X射线自由激光装置(Shanghai High Repetition rate XFEL and Extreme light facility,SHINE)整体采用基于白兔协议(White Rabbit,WR)技术的定时系统。束线站定时系统接收外部参考信号,并通过定时主节点、WR交换机和从节点等WR设备将定时信号分发到各光束线和实验站。定时设备控制系统基于简单网络管理协议(Simple Network Management Protocol,SNMP)与实验物理与工业控制系统(Experiment Physics and Industrial Control System,EPICS)开发,可远程监测和控制分布式定时设备。该系统获取定时设备硬件相关参数,通过EPICS IOC(Input/Output Controller)保存至内存数据库。定时系统参数可以通过PyDM(Python Display Manager)编写的用户界面查看,并可在Archiver Appliance中存档与检索。通过测试证明此控制系统能够实时监测设备参数,并能远程控制信号时延及脉宽等,满足SHINE光束线与实验站的定时需求。[Background]Shanghai High Repetition rate XFEL and Extreme light facility(SHINE)employs a White Rabbit(WR)-based timing system.This timing system operates via the utilization of beamline–endstation division,which receives external reference timing signals and distributes them to each beamline and endstation via WR timing network devices,including master nodes,WR switches and slave nodes.[Purpose]This study aims to develop a timing equipment control system(TECS)to address the requirements of remote monitoring and control of distributed timing equipment.[Methods]Based on Experiment Physics and Industrial Control System(EPICS)and Simple Network Management Protocol(SNMP),an approach for acquiring timing equipment parameters was employed.These parameters was stored in the resident memory database though EPICS Input/Output Controller(IOC)and accessed via a user interface developed with PyDM(Python Display Manager).Archive and retrieval of timing equipment parameters were implemented in the Archiver Appliance historical archiving system.Finally,test environment was set up in laboratory to verify the validity and reliability of this TECS.[Results&Conclusions]This control system underwent testing exhibits its effective functionalities,including real-time monitoring equipment parameters,as well as remote control of equipment signal delay and pulse width.These capabilities are essential in meeting the requirements of SHINE beamlines and endstations.

关 键 词：SHINE 定时系统 白兔协议 EPICS SNMP 

分 类 号：TL503.6[核科学技术—核技术及应用]