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基于高精度时间数据的加速器故障分析样机设计 被引量:1
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作者 程司农 张昭 +5 位作者 朱鹏 刘智 王林 徐广磊 张玉亮 雷革 《核技术》 CAS CSCD 北大核心 2022年第10期18-25,共8页
高性能的加速器对运行的可靠性和稳定性提出了更高的要求,而加速器庞大的设备数量、极高的设备精度及性能导致对外部干扰非常敏感。为实现加速器长期、高效、可靠的运行,故障快速定位、诊断和恢复对现代加速器控制系统至关重要。目前,... 高性能的加速器对运行的可靠性和稳定性提出了更高的要求,而加速器庞大的设备数量、极高的设备精度及性能导致对外部干扰非常敏感。为实现加速器长期、高效、可靠的运行,故障快速定位、诊断和恢复对现代加速器控制系统至关重要。目前,在加速器运行过程中,常规保存的历史数据可以判断和处理大部分一般故障。但对于类似高频、束测元件等快电子学引发的瞬态故障,由于常规方式保存的历史数据时间粒度不够,导致无法对这类快速故障过程进行有效分析。因此,有必要通过技术手段完整地记录故障发生时刻前后一段时间设备的状态及参数,保存高真实的现场“快照”。本文设计了一种基于高时间相关性和高时间分辨率的加速器故障分析系统,并进行了样机实现。该样机基于事件定时系统实现了同步精度好于16 ns的全局时间戳,采用同步触发的方式进行数据获取,并利用EPICS 7的规范类型进行数据组装和发布。样机实验结果表明,利用获取到的高精度时间数据,可区分不同设备发生故障的先后顺序,验证了故障分析系统的可行性。 展开更多
关键词 故障分析 高精度时间戳 数据获取 EPICS7 事件定时
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Accelerator network monitoring system based on microservices architecture
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作者 Wang Yifeng Liu Jia +1 位作者 cheng sinong Xu Guanglei 《Radiation Detection Technology and Methods》 CSCD 2024年第3期1461-1471,共11页
Purpose The BEPCII(Upgrade project of Beijing Electron Positron Collider)is a high-performance accelerator,composed of a vast array of front-end devices.When the accelerator is operational,high-speed,real-time data co... Purpose The BEPCII(Upgrade project of Beijing Electron Positron Collider)is a high-performance accelerator,composed of a vast array of front-end devices.When the accelerator is operational,high-speed,real-time data communication,and information exchange are necessary among its various subsystems.The network system of BEPCII is a critical infrastructure that ensures the normal operation and data transmission of the accelerator.Switches,as the core devices for constructing the accelerator’s control network and realizing data transmission and communication,play a vital role in the reliability and stability of the accelerator’s functioning.This study aims to design an accelerator network monitoring system based on a microservice architecture to monitor the data information of network devices such as switches.Methods and Results Remote management of switch configurations and monitoring of switch port statuses are implemented via the simple network management protocol.The working status data of the switches obtained are saved to a MySQL database to facilitate statistical queries and data analysis when called upon.Utilizing the Nameko microservice framework,different services such as storage,querying,and analysis are managed and invoked separately to prevent process waiting due to excessive data volumes or too many services being called simultaneously.Additionally,a variety of functional web front-end interfaces has been designed based on the Flask framework to improve human–machine interaction.By testing two switches,the system achieved monitoring of the switches’CPU usage,temperature,port status,and port traffic.Storage and querying of historical data were also enabled through the database,making data analysis more accessible.This study has fulfilled the monitoring and management requirements for the control network’s switch information through testing.The system will subsequently be deployed in the control network system of BEPCII. 展开更多
关键词 Network monitoring system Microservice architecture SNMP MYSQL FLASK
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