基于ARM的嵌入式Linux无线网卡设备驱动研究

介绍了D-Link无线网卡在嵌入式Linux下的驱动设计与实现。基于医用伽玛相机和小型SPECT设备的手持数据采集系统,首先搭建好嵌入式开发的软硬件环境,分析Linux内核USB驱动模块和网络驱动工作原理,然后针对D-Link无线网卡对通用的无线网卡驱动进行修改和交叉编译,最终移植到ARM平台上,建立嵌入式无线局域网,为进一步的无线网络研究搭建好开发平台。     

智能式电感液位计的研究

本文介绍了智能式电感液位计的结构和工作原理，并用实验的方法研究了影响其灵敏度的主要因素，分析了智能式电感液位计现场校验结果。     

基于CPLD﹑单片机和网络的固态调制器触发控制

介绍了一种用于固态脉冲调制器的触发和控制系统。用CPLD非常方便地产生了固态调制器触发所需要的频率和宽度均可调节的脉冲信号,为了将来能通过网络在上位机上远程调节调制器触发信号,我们使用了单片机AT89C51和网卡控制芯片RTL8019AS。本文介绍了整个系统软硬件的设计原理。     

基于物联网技术的射气监控系统实时化设计

根据射气自身运移机制实验研究的需要,尝试解决射气研究中实验环境无法理想化等问题。本文在物联网环境下结合智能感知、射频传输等硬件优势,配合软件工程设计思想完成射气监控系统的软硬件设计,实现环境参数准确测定和实时反馈等需求,达到系统智能实时化处理能力。经实验测试,射气监控系统完成了数据的准确传输,实现了实验环境的温湿度可测、可调,理论模型可优化,从而实现射气实验研究的智能实时化设计。为射气理论研究的物联网化融合提供了有效的研究方向。     

基于CPLD、单片机和网络的固态调制器触发控制

介绍了一种用于固态脉冲调制器的触发和控制系统.用CPLD非常方便地产生了固态调制器触发所需要的频率和宽度均可调节的脉冲信号,为了将来能通过网络在上位机上远程调节调制器触发信号,我们使用了单片机AT89C51和网卡控制芯片RTL8019AS.本文介绍了整个系统软硬件的设计原理.     

智能传感器系统多路混合开关电源设计与实现

根据双栅极空气计数管智能传感器系统的工作原理,提出多路混合电源的设计指标,结合开关电源的特点,分别对电源高压和中低压部分进行详细设计,其中中低压电路采用KA7500B为控制核心,可实现双通道脉冲输出、软启动、输出电压调节、欠电压保护和过流保护等功能.实验表明,多路混合电源可满足智能传感器系统的工作要求.     

激光打靶实验数据采集与处理系统

本文简要叙述了国外激光打靶联网状况，网络技术发展趋势，提出了激光打靶实验数据在线采集和处理系统结构图，介绍了“神光”激光打靶实验微机网络系统，并对实验结果进行了讨论。     

核辐射环境下佩戴生理监测计算机系统研究

针对目前特种监护设备接线复杂以及难以检查潜在健康危险的情况,提出了基于无线传感器网络的动态可佩戴生理监测平台,节点包括呼吸、心电、体位、体动、体温等多生理参数类型智能传感器.网关节点采用C-PRS通信方式完成数据远程准确传送.所研制仿真系统,由GPS+GPRS模块XT5开发网关,节点采用Crossbow公司的MICA2和MICA2 DOT的等类型点状系列传感器.由志愿者佩戴后,将采取的生理和位置信息准确传到500公里外的监测点,终端计算机直观地查看到了受试者传送的信息.系统稳定地工作在2.4GHz频段,发射功率-5dB,数据速率最大40kbps.初步实验结果表明,系统原型可由特种监护者工作时佩戴于身体相应部位实时动态生理定位监测.系统通讯距离远,覆盖范围大,适合于核辐射环境下应用.     

秦山300MW核电机组全范围仿真机特殊系统和特殊仪表的仿真

介绍了秦山３００ＭＷ核电机组全范围仿真机中一些特殊的仿真系统和仿真仪表，阐述了它们的工作原理和技术要点，工艺选择和实现方法，并详细给出了一些智能仿真系统的系统框图和软件框图。对于普通的仿真仪表，简述其仿真实现方法和工艺。     

BP－RBF神经网络在核电厂故障诊断中的应用

本工作将BP（backpropagation）神经网络与RBF（radialbasisfunction）神经网络相混合,并将其应用于核电厂的状态监测与故障诊断系统中,通过对核电厂典型故障的特征分析,建立相应的网络结构。为验证该混合网络的有效性,在核动力装置模拟器上进行了仿真实验研究,并用VisualBasic6.0编写了网络程序。研究结果表明：该混合网络具有良好的诊断准确性、实时性和可扩充性。     

LHCb试验数据采集系统中的4G以太网卡GBE

在LHCb试验中,有数以百万计的探测器通道,为了传输大量的试验数据,需要350块的4通道、全双工的千兆以太网卡GBE.介绍了GBE网卡的硬件设计原理、所实现的网络协议以及它的测试方法和实际的工作情况.     

Implementation of IEEE-1588 timing and synchronization for ATCA control and data acquisition systems

Control and data acquisition (C&DA) systems for Fusion experiments are required to provide accurate timing and synchronization (T&S) signals to all of its components. IPFN adopted PICMG's Advanced Telecommunications Computing Architecture (ATCA) industry standard to develop C&DA instrumentation. ATCA was chosen not only for its high throughput characteristics but also for its high availability (HA) features which become of greater importance in steady-state operation scenarios. However, the specified ATCA clock and synchronization interface may be too limited for the timing and synchronization needs in advanced Physics experiments. Upcoming specification extensions, developed by the “xTCA for Physics” workgroups, will contemplate, among others, a complementary timing specification, developed by the PICMG xTCA for Physics IO, Timing and Synchronization Technical Committee. The IEEE-1588 Precision Time Protocol (PTP) over Ethernet is one of the protocols, proposed by the Committee, aiming for precise synchronization of clocks in measurement and control systems, based on low jitter and slave-to-slave skew criteria.The paper presents an implementation of IEEE-1588 over Ethernet, in an ATCA hardware platform. The ATCA hardware consists of an Advanced Mezzanine Card (AMC) quad-carrier front board with PCI Express switching. IEEE-1588 is to be implemented on a Virtex-6 FPGA. Ethernet connectivity with the remote master clock is located on the rear transition module (RTM). The generated synchronized clock and absolute time in IRIG-B format are distributed to all systems endpoints by a cross-point switch which is also implemented on the FPGA.     

工业CT双通道高速数据传输系统设计

基于千兆以太网和PCI - EXPRESS两种总线协议设计出了一套工业CT双通道数据传输系统.系统接收数据采集模块发送的数字电信号,分别通过千兆以太网和PCI - EXPRESS发送至外部网络或工控机中,两种协议之间也可以相互通讯,提高系统利用率.针对现有同类系统集成度不高的现状,设计方案采用SOPC技术中的IP硬核和...     

基于EPICS的StreamDevice的应用研究

介绍了EPICS环境下一种基于数据流设备的通讯驱动模块StreamDevice的应用,并以BEPCⅡ的温度监测系统升级改进为例,详细分析了如何应用StreamDevice读取前端设备的温度数据,该研究成果也可直接用于开发真空计、离子泵等加速器装置中常用的基于串口、以太网的智能控制器.     

基于uClinux的嵌入式数据采集系统

介绍了一种基于uClinux的嵌入式数据采集系统,系统以ARM7TDMI类型的微处理器S3C4510B为核心.系统实现了高速数据采集和10/100M以太网的数据传输,可以很好地取代传统的基于8位处理器的数据采集.     

Testing and commissioning the multinode ECRH realtime control system on the FTU tokamak

In tokamak machines, the ECRH heating system is crucial for plasma heating and for stability control. To be reliable, an ECRH control system should be deeply integrated into the supervision and control systems of the machine, and must be interconnected to the diagnostic instruments and the power actuators of the plant. Moreover, several ECRH experiments are under investigation by the community. So, for the sake of efficiency, it should be possible to reprogram a control system on the fly and possibly from remote locations, even during experiment campaigns. This paper presents the new ECRH control system under development at the FTU tokamak. This system consists of multiple units that acquire and process data and are linked through Ethernet and dedicated fiber-optic data links, under a Linux/MARTe framework. This paper also presents open-loop operative results, both about performances of the control system and about signal processing of the diagnostics relevant to MHD control.     

基于Qt框架的APV25数据采集系统研究

Qt框架是基于C++的跨平台可视化编程框架。本文采用APV25电子学前端卡、APVDS电子学数字化后端板和基于Qt框架的数据采集软件,开发了具有高通道数、高性能和高集成度的数据采集系统。该系统可跨平台使用并显示实时采样波形。数据采集系统最多可使用16块APV25前端卡、4个APVDS,通过千兆以太网经交换机与计算机连接。通过测试,该系统可在1 024通道下工作并实时显示采样波形,传输速率可达715 Mb/s,且测试中系统能以1.70 kHz的触发率在单次触发连续采样31个点模式下稳定工作。与原系统相比,显著提高了通道数量,简化了系统操作,提高了测量的效率与稳定性。采集系统未来可扩展通道数量为2 048,适用于大面积微结构气体探测器实验。     

A real-time beam loss monitoring system for storage ring of SSRF

In this paper we report the real-time beam loss monitoring (BLM) system at the storage ring of SSRF.The BLM-XS detectors and Ethernet data acquisition system are used in this system.Some applications and experiments of the BLM system are also presented.The BLM system provides dynamic information of beam loss for the storage ring,and is helpful to ensure the facility commissioning,investigate the problems of machine,optimize the machine parameters and further increase the beam lifetime.     

A poloidal field control system based on VxWorks in HT-7 Tokamak

The PF (Poloidal Field) control system is one of the most important control systems in HT-7 Tokamak.Most of parameters such as plasma current, plasma horizontal position and plasma vertical position will be monitored.For the purpose of long-pulse discharge and the more precise control to plasma, the real-time operation system VxWorks is applied, instead of the behindhand and unbefitting DOS operation system. This paper describes the development process of HT-7 PF control system based on VxWorks on Intel X86 platforms. The method of using hardware cards in VxWorks, and the network communication with other operation systems are discussed especially. Results of the comparison between VxWorks and DOS operation systems are given too.     

The Development of Data Acquisition and Remote Real-Time Display System for EAST NBI

The data acquisition and remote real-time display system for the neutral beam injectors (NBI) on experimental advanced superconducting tokamak (EAST) are described in this paper. Distributed computer systems including local data acquisition (DAQ) facility, remote data server (DS), real-time display terminal are adopted with Linux and Windows operating system. Experimental signals are gathered by DAQ device at local working field. On the one hand, these gathered data will be sent to DS which runs on remote server main control layer on EAST NBI control network for saving and processing; on the other hand, these data will be sent to real-time display terminal which runs on remote monitoring layer on EAST NBI for displaying and monitoring experimental signals real-timely. Another point needs to be mentioned is that the real-time display software can call back historical data from DS for querying. The software of data acquisition and DS are programmed by C language while the real-time display software is programmed by Labview flow chart. The hardware mainly includes DAQ cards, server, industrial personal computer and others auxiliary hardware. Now the system proved to be performed well through experiments on NBI testing bed.