Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543146
Y. Chen, S. Li, F. Wang, B. Xiao, Y. L. Li
A data acquisition and control system has been realized for a Multi-Energy Soft X-Ray (ME-SXR) diagnostic, which has been built for EAST (Experimental Advanced Superconducting Tokamak) electron temperature profile in the edge plasma region. The system has two functions: long-pulse data acquisition and electronics' automatic gain-control. It provides 96 high-speed channels with optional sampling rates from 250 KSPS to 1 MSPS, which can long-pulse acquires signals of ME-SXR. In the meanwhile, it transfers the data to the MDSplus server in real-time and users can access to the data during the discharge. The signals from the diode array detectors are in the microampere range, which should be amplified by the electronics with the transimpedance in 8 stages. In the past, electronics' gain settings were totally man-control. In order to realize auto-control, it makes data de-noising and calculates appropriate gains, according to the pulse situation and ME-SXR's reference signals in the last shot. The goal of the system is to ensure long-pulse data acquisition and electronics' automatic gain-control. The system has been demonstrated in the 2015 EAST campaign. The details are presented in the paper.
{"title":"The data acquisition and control system of EAST ME-SXR diagnostic","authors":"Y. Chen, S. Li, F. Wang, B. Xiao, Y. L. Li","doi":"10.1109/RTC.2016.7543146","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543146","url":null,"abstract":"A data acquisition and control system has been realized for a Multi-Energy Soft X-Ray (ME-SXR) diagnostic, which has been built for EAST (Experimental Advanced Superconducting Tokamak) electron temperature profile in the edge plasma region. The system has two functions: long-pulse data acquisition and electronics' automatic gain-control. It provides 96 high-speed channels with optional sampling rates from 250 KSPS to 1 MSPS, which can long-pulse acquires signals of ME-SXR. In the meanwhile, it transfers the data to the MDSplus server in real-time and users can access to the data during the discharge. The signals from the diode array detectors are in the microampere range, which should be amplified by the electronics with the transimpedance in 8 stages. In the past, electronics' gain settings were totally man-control. In order to realize auto-control, it makes data de-noising and calculates appropriate gains, according to the pulse situation and ME-SXR's reference signals in the last shot. The goal of the system is to ensure long-pulse data acquisition and electronics' automatic gain-control. The system has been demonstrated in the 2015 EAST campaign. The details are presented in the paper.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129038979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543074
Jinxin Liu, Lei Zhao, L. Zhan, Shubin Liu, Q. An
Shanghai Synchrotron Radiation Facility (SSRF), is one of the third-generation high-beam current (3.5GeV) synchrotron light sources. In the storage ring of SSRF, multi-bunch instabilities would increase beam emittance and energy spread, which degrade beam quality and even cause beam loss. To address the above issues, a Transverse Feedback System is indispensable for SSRF, in which the key component is the bunch-by-bunch transverse feedback electronics. The whole feedback system consists of five main parts: BPM, RF front-end, signal processor, RF amplifier, and vertical/horizontal transverse kickers. The dissertation focuses on the signal processor we design, which is the main part of the feedback electronics. We conducted initial testing on the signal processor to evaluate its performance and function. The typical frequency spectrums analysis (with input frequency of around 100 MHz) of the ADC output signals indicates that the SINAD (Signal-to-Noise and Distortion Ratio) is 63.69 dB and the ENOB (Effective Number of Bit) is 10.3 bit. The test results of ENOB with different input frequency indicate that it is better than 9.5 bit in the input frequency range up to 300 MHz, which is good enough for the application. Besides, the test results of the hardware and the results of the MATLAB model concord well with each other, which means that we have achieved the functionality as expected.
{"title":"Design and testing of the bunch-by-bunch beam transverse feedback electronics for SSRF","authors":"Jinxin Liu, Lei Zhao, L. Zhan, Shubin Liu, Q. An","doi":"10.1109/RTC.2016.7543074","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543074","url":null,"abstract":"Shanghai Synchrotron Radiation Facility (SSRF), is one of the third-generation high-beam current (3.5GeV) synchrotron light sources. In the storage ring of SSRF, multi-bunch instabilities would increase beam emittance and energy spread, which degrade beam quality and even cause beam loss. To address the above issues, a Transverse Feedback System is indispensable for SSRF, in which the key component is the bunch-by-bunch transverse feedback electronics. The whole feedback system consists of five main parts: BPM, RF front-end, signal processor, RF amplifier, and vertical/horizontal transverse kickers. The dissertation focuses on the signal processor we design, which is the main part of the feedback electronics. We conducted initial testing on the signal processor to evaluate its performance and function. The typical frequency spectrums analysis (with input frequency of around 100 MHz) of the ADC output signals indicates that the SINAD (Signal-to-Noise and Distortion Ratio) is 63.69 dB and the ENOB (Effective Number of Bit) is 10.3 bit. The test results of ENOB with different input frequency indicate that it is better than 9.5 bit in the input frequency range up to 300 MHz, which is good enough for the application. Besides, the test results of the hardware and the results of the MATLAB model concord well with each other, which means that we have achieved the functionality as expected.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121264316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543137
J. Shiu
The SuperKEKB collider has started its beam commissioning this year and is expected to have first collision for early physics next year. To efficiently select physics events in interest at high luminosity rate, a multifunctional trigger system is designed. In this presentation, we introduce the tracker trigger system associated with the Belle II central drift chamber (CDC) detector. This sub-trigger system is designed to perform a quick track recognition in 2-dimentional and 3-dimentional spaces. The design structure, current status, and performance studies will be discussed.
{"title":"The level 1 trigger system for Belle II CDC","authors":"J. Shiu","doi":"10.1109/RTC.2016.7543137","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543137","url":null,"abstract":"The SuperKEKB collider has started its beam commissioning this year and is expected to have first collision for early physics next year. To efficiently select physics events in interest at high luminosity rate, a multifunctional trigger system is designed. In this presentation, we introduce the tracker trigger system associated with the Belle II central drift chamber (CDC) detector. This sub-trigger system is designed to perform a quick track recognition in 2-dimentional and 3-dimentional spaces. The design structure, current status, and performance studies will be discussed.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121647465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543096
T. Xue, G. Gong, Jianmin Li
RAIN1000Z1 is a high performance readout module we developed last two years. It is based on the ZYNQ architecture SOC chip from Xilinx and ZYNQ is the new architecture of FPGA with dual high performance ARM Cortex-A9 processors and high capacity programmable logic. We developed a series of readout system with the RAIN1000Z1 module based on ZYNQ architecture. For the crystal scintillator detectors, such as BC-501A liquid scintillator in a Teflon vessel we used for neutron background measurement in CJPL (China JinPing under-ground Lab) experiment, we developed a two channels 8-Bit 1GHz FADC readout system with RAIN1000Z1 module. With the two R1250 PMTs in the dual end of detector, the analog signals are send to FADC and the digital results is triggered and anticoincidence in the FPGA logic, the final triggered data is send to computer by gigabits Ethernet with ARM processor running Embedded Linux. HMCAD1511 from ADI is used for 8-Bit 1GSPS analog data converter, and the high speed, low jitter 1GHz clock is generated by LMK04803B from TI. With the benefit of high bandwidth and high performance inter connected HP bus between ARM processor (PS) and FPGA logic (PL), the FADC's data gathered by FPGA logic is buffered and transferred to the ARM processor's DDR3 SDRAM running at 1066MHz with CDMA function without many CPU time. The readout interface's data throughput can reach more than 600Mbps with gigabits Ethernet. In this paper, details of the hardware design and HDL design will be introduced.
{"title":"Readout system with 2-channel 8-bit 1GHz FADC based on RAIN1000Z1 ZYNQ module for crystal detector","authors":"T. Xue, G. Gong, Jianmin Li","doi":"10.1109/RTC.2016.7543096","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543096","url":null,"abstract":"RAIN1000Z1 is a high performance readout module we developed last two years. It is based on the ZYNQ architecture SOC chip from Xilinx and ZYNQ is the new architecture of FPGA with dual high performance ARM Cortex-A9 processors and high capacity programmable logic. We developed a series of readout system with the RAIN1000Z1 module based on ZYNQ architecture. For the crystal scintillator detectors, such as BC-501A liquid scintillator in a Teflon vessel we used for neutron background measurement in CJPL (China JinPing under-ground Lab) experiment, we developed a two channels 8-Bit 1GHz FADC readout system with RAIN1000Z1 module. With the two R1250 PMTs in the dual end of detector, the analog signals are send to FADC and the digital results is triggered and anticoincidence in the FPGA logic, the final triggered data is send to computer by gigabits Ethernet with ARM processor running Embedded Linux. HMCAD1511 from ADI is used for 8-Bit 1GSPS analog data converter, and the high speed, low jitter 1GHz clock is generated by LMK04803B from TI. With the benefit of high bandwidth and high performance inter connected HP bus between ARM processor (PS) and FPGA logic (PL), the FADC's data gathered by FPGA logic is buffered and transferred to the ARM processor's DDR3 SDRAM running at 1066MHz with CDMA function without many CPU time. The readout interface's data throughput can reach more than 600Mbps with gigabits Ethernet. In this paper, details of the hardware design and HDL design will be introduced.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131601026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543182
Cheng Li, Z. Cao, Jiadong Hu, C. Feng, Shubin Liu, Q. An
With the purpose of realizing an amplifier capable to process large dynamic range signals, a programmable gain range amplifier that comprises of attenuator, variable gain amplifier, differential amplifier is developed. This amplifier has a programmable gain from -20 dB to 33 dB and a DC to 700 MHz bandwidth. Besides, remote programmability makes this amplifier convenient to use. To test its feature in signal conditioning, a BaF2 detector signal is amplified and results show good performance. This amplifier has promising application possibility in high-speed large dynamic signal processing situations, especially in those system requires accurate signal conditioning like ultra-fast ADC system.
{"title":"Design of a high-speed large dynamic range programmable gain amplifier","authors":"Cheng Li, Z. Cao, Jiadong Hu, C. Feng, Shubin Liu, Q. An","doi":"10.1109/RTC.2016.7543182","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543182","url":null,"abstract":"With the purpose of realizing an amplifier capable to process large dynamic range signals, a programmable gain range amplifier that comprises of attenuator, variable gain amplifier, differential amplifier is developed. This amplifier has a programmable gain from -20 dB to 33 dB and a DC to 700 MHz bandwidth. Besides, remote programmability makes this amplifier convenient to use. To test its feature in signal conditioning, a BaF2 detector signal is amplified and results show good performance. This amplifier has promising application possibility in high-speed large dynamic signal processing situations, especially in those system requires accurate signal conditioning like ultra-fast ADC system.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124350271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543154
Y. Igarashi, Haiyun Lu, R. Tanuma
An experiment to test Lepton Flavor Universality (LFU) using a precise measurement of the decay width ratio of the two-body kaon decays with a positron and a muon (J-PARC E36), completed data-taking in December 2015. The experiment was performed on the K1.1BR beam-line at the Japan Proton Accelerator Research Complex (J-PARC). We developed and constructed a data acquisition (DAQ) system for this experiment. The DAQ system had to integrate several traditional and also recent types of readout systems to satisfy the experimental requirements. We used an event synchronization method by distributing the event identifying number, called the event-tag, and a common network to integrate the different types of readout systems. The entire DAQ was very stable during the experiment data-taking with 10 % dead-time at a trigger rate of 250 Hz.
{"title":"Data acquisition system for the J-PARC E36 experiment","authors":"Y. Igarashi, Haiyun Lu, R. Tanuma","doi":"10.1109/RTC.2016.7543154","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543154","url":null,"abstract":"An experiment to test Lepton Flavor Universality (LFU) using a precise measurement of the decay width ratio of the two-body kaon decays with a positron and a muon (J-PARC E36), completed data-taking in December 2015. The experiment was performed on the K1.1BR beam-line at the Japan Proton Accelerator Research Complex (J-PARC). We developed and constructed a data acquisition (DAQ) system for this experiment. The DAQ system had to integrate several traditional and also recent types of readout systems to satisfy the experimental requirements. We used an event synchronization method by distributing the event identifying number, called the event-tag, and a common network to integrate the different types of readout systems. The entire DAQ was very stable during the experiment data-taking with 10 % dead-time at a trigger rate of 250 Hz.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122857471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543180
Shi Li, Yong Wang, Ying Chen, Feng Wang
For the 2015 EAST experimental campaign, the Fast Control Power System (FCPS) has been newly developed. FCPS is composed of the main circuit and the control and protect section. The main circuit of FCPS includes the high-voltage circuit breakers, the multi phase rectifier transformers, the AC/DC rectifier, and the DC/AC inverters. Because of the complexity of FCPS and the poor working environment, the remote monitoring and control system is considered as a very important part of FCPS. The developed monitoring and control system is based on EPICS framework, and includes the data acquisition module, FCPS status monitoring and control module. The above modules are developed as EPICS device support modules. The monitoring and control system communicates with the control and protect section through the serial RS-485 protocol and with the main circuit through modbus protocol based TCP/IP. In addition, this system also includes a module that is developed with C. It is considered as the front end executable module of Plasma Control System, and communicates with PCS through the reflective memory (RFM) cards. All the status and the acquired data from FCPS are demonstrated on the OPI developed by Control System Studio, and are archived by the MDSPlus database. The new monitoring and control system has been test and showed the stable and robust performance.
在2015年EAST实验活动中，新开发了快速控制电源系统(FCPS)。FCPS由主电路和控制保护部分组成。FCPS的主电路包括高压断路器、多相整流变压器、交流/直流整流和直流/交流逆变器。由于FCPS的复杂性和恶劣的工作环境，远程监控系统被认为是FCPS的一个非常重要的组成部分。所开发的监控系统基于EPICS框架，包括数据采集模块、FCPS状态监控模块。以上模块作为EPICS设备支持模块开发。监控系统通过串行RS-485协议与控制保护部通信，通过基于TCP/IP的modbus协议与主电路通信。此外，本系统还包括一个用c语言开发的模块，作为等离子体控制系统的前端可执行模块，通过RFM卡与pc机通信。FCPS的所有状态和采集数据都在Control System Studio开发的OPI上进行演示，并由MDSPlus数据库存档。该监控系统已经过测试，性能稳定、鲁棒。
{"title":"Development of the EPICS-based monitoring and control system for EAST fast control power system","authors":"Shi Li, Yong Wang, Ying Chen, Feng Wang","doi":"10.1109/RTC.2016.7543180","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543180","url":null,"abstract":"For the 2015 EAST experimental campaign, the Fast Control Power System (FCPS) has been newly developed. FCPS is composed of the main circuit and the control and protect section. The main circuit of FCPS includes the high-voltage circuit breakers, the multi phase rectifier transformers, the AC/DC rectifier, and the DC/AC inverters. Because of the complexity of FCPS and the poor working environment, the remote monitoring and control system is considered as a very important part of FCPS. The developed monitoring and control system is based on EPICS framework, and includes the data acquisition module, FCPS status monitoring and control module. The above modules are developed as EPICS device support modules. The monitoring and control system communicates with the control and protect section through the serial RS-485 protocol and with the main circuit through modbus protocol based TCP/IP. In addition, this system also includes a module that is developed with C. It is considered as the front end executable module of Plasma Control System, and communicates with PCS through the reflective memory (RFM) cards. All the status and the acquired data from FCPS are demonstrated on the OPI developed by Control System Studio, and are archived by the MDSPlus database. The new monitoring and control system has been test and showed the stable and robust performance.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124942216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543176
A. Neto, F. Sartori, R. Vitelli, L. Capellà, G. Ferrò, Ivan Herrero, H. Novella
In the context of a fast controller prototype project, which aimed at testing the integration of fast plant systems in the ITER software environment, a software Quality Assurance (QA) strategy that is appropriate for the development of ITER real-time applications (e.g. diagnostic control systems) is being developed. In particular the QA processes had to be designed in order to safely integrate contributions from a large and heterogeneous development community, which includes developer profiles both from the scientific community and from the industrial suppliers. Notably the coding standard aims at demonstrating MISRA-C++:2008 compliance. The MARTe software framework is currently being used to implement a large variety of fusion real-time control system applications. Being a modular and multi-platform framework has allowed to reuse components, interfaces and services across systems which are deployed in very distinct architectures. This has leveraged the exposure of the same code to different environment configurations, thus increasing the confidence on its quality and robustness. The QA processes are being applied to the development of a new version of the MARTe framework. The main objective is to provide a QA certifiable environment from where it is possible to develop, with less effort, certifiable applications. This is expected to be achieved by sharing the same QA methodologies and tools and by maximising the reuse of framework modules (which were also developed against these QA processes). This paper details the QA processes, the associated tools and discusses its applicability to the fusion development environment.
{"title":"An agile quality assurance framework for the development of fusion real-time applications","authors":"A. Neto, F. Sartori, R. Vitelli, L. Capellà, G. Ferrò, Ivan Herrero, H. Novella","doi":"10.1109/RTC.2016.7543176","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543176","url":null,"abstract":"In the context of a fast controller prototype project, which aimed at testing the integration of fast plant systems in the ITER software environment, a software Quality Assurance (QA) strategy that is appropriate for the development of ITER real-time applications (e.g. diagnostic control systems) is being developed. In particular the QA processes had to be designed in order to safely integrate contributions from a large and heterogeneous development community, which includes developer profiles both from the scientific community and from the industrial suppliers. Notably the coding standard aims at demonstrating MISRA-C++:2008 compliance. The MARTe software framework is currently being used to implement a large variety of fusion real-time control system applications. Being a modular and multi-platform framework has allowed to reuse components, interfaces and services across systems which are deployed in very distinct architectures. This has leveraged the exposure of the same code to different environment configurations, thus increasing the confidence on its quality and robustness. The QA processes are being applied to the development of a new version of the MARTe framework. The main objective is to provide a QA certifiable environment from where it is possible to develop, with less effort, certifiable applications. This is expected to be achieved by sharing the same QA methodologies and tools and by maximising the reuse of framework modules (which were also developed against these QA processes). This paper details the QA processes, the associated tools and discusses its applicability to the fusion development environment.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128739222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543086
Chuanyu Li, Z. Ji, Fushun Wang, Pu-Qun Wang, Y. Wang, Z. Zhang
During the smooth running of EAST (Experimental Advanced Superconducting Tokamak), a perfect network management system guaranteeing a robust network is important. In the present complex network infrastructure, it is a daunting task to manage all the devices manually in a network and make sure they are not only up and running but also performing optimally. Therefore, a web-based software system is developed to implement the real-time monitoring of the EAST experimental network in this paper. Written by the language of PHP, the system based on Cacti uses the RRDTool (Round-robin database tool) engine to store data, stores the systems configuration information by MySQL, and collects periodical data through Net-SNMP. It has realized data acquisition, network weathermap, fault alarm, user management and other modules. Compared with the previous management way, our system can dynamically monitor the network link state, bandwidth usage, the information of network devices load in real time, and give the real monitoring effect; it can also find the various faults and give alarm by sending text messages and emails respectively, so that we can take appropriate measures to resolve them in time. Compared to Email alarm, SMS (Short Message Service) based on the hardware of GSM Modem has the advantages of faster speed and more reliable communication signal. So far, the monitoring system has been successfully applied in the network of EAST and greatly improved the efficiency of network management.
{"title":"The network monitoring system based on Cacti for EAST","authors":"Chuanyu Li, Z. Ji, Fushun Wang, Pu-Qun Wang, Y. Wang, Z. Zhang","doi":"10.1109/RTC.2016.7543086","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543086","url":null,"abstract":"During the smooth running of EAST (Experimental Advanced Superconducting Tokamak), a perfect network management system guaranteeing a robust network is important. In the present complex network infrastructure, it is a daunting task to manage all the devices manually in a network and make sure they are not only up and running but also performing optimally. Therefore, a web-based software system is developed to implement the real-time monitoring of the EAST experimental network in this paper. Written by the language of PHP, the system based on Cacti uses the RRDTool (Round-robin database tool) engine to store data, stores the systems configuration information by MySQL, and collects periodical data through Net-SNMP. It has realized data acquisition, network weathermap, fault alarm, user management and other modules. Compared with the previous management way, our system can dynamically monitor the network link state, bandwidth usage, the information of network devices load in real time, and give the real monitoring effect; it can also find the various faults and give alarm by sending text messages and emails respectively, so that we can take appropriate measures to resolve them in time. Compared to Email alarm, SMS (Short Message Service) based on the hardware of GSM Modem has the advantages of faster speed and more reliable communication signal. So far, the monitoring system has been successfully applied in the network of EAST and greatly improved the efficiency of network management.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"16 19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128949420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543147
F. Wang, Y. Chen, S. Li, Y. Wang, X. Sun, F. Yang
The Experimental Advanced Superconducting Tokamak is a large fusion research device which aims at long-term and high parameters plasma operation. A distributed and continuous data acquisition system based on PXI/PXI Express technology has been developed for EAST. At present the system has more than 50 data acquisition units and more than 2000 raw channels, the maximum data throughput is about 5GBytes/s. How to access the large amount of data as fast as possible becomes a big problem. So we planned to design a special hierarchical data storage system for EAST. The system is composed of 4 storage tiers. The tier1 is based on PCIe SSD storage which provide the data access cache. The tier2 is the local SAS raid on MDSplus server cluster for real-time data collection from the data acquisition units. The tier3 is Lustre storage which stored all the current campaign data and can provide fast parallel data access for data processing. The tier4 is NAS storage for historic data achieving. A schedule program is designed to control the data flow between tier1 and tier2/tier3/tier4. The system has been designed and will be adopted in the next campaign and the system details will be given in the paper.
{"title":"Study of fast data access based on hierarchical storage for EAST Tokamak","authors":"F. Wang, Y. Chen, S. Li, Y. Wang, X. Sun, F. Yang","doi":"10.1109/RTC.2016.7543147","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543147","url":null,"abstract":"The Experimental Advanced Superconducting Tokamak is a large fusion research device which aims at long-term and high parameters plasma operation. A distributed and continuous data acquisition system based on PXI/PXI Express technology has been developed for EAST. At present the system has more than 50 data acquisition units and more than 2000 raw channels, the maximum data throughput is about 5GBytes/s. How to access the large amount of data as fast as possible becomes a big problem. So we planned to design a special hierarchical data storage system for EAST. The system is composed of 4 storage tiers. The tier1 is based on PCIe SSD storage which provide the data access cache. The tier2 is the local SAS raid on MDSplus server cluster for real-time data collection from the data acquisition units. The tier3 is Lustre storage which stored all the current campaign data and can provide fast parallel data access for data processing. The tier4 is NAS storage for historic data achieving. A schedule program is designed to control the data flow between tier1 and tier2/tier3/tier4. The system has been designed and will be adopted in the next campaign and the system details will be given in the paper.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128526474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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