The design and realization of the software based on EtherNet/IP communication adapter

本文以上海捷准工业自动化公司委托开发的“EtherNet/IP通信适配器开发”项目为背景，设计并实现一种基于EtherNet/IP工业以太网的通信适配器，该通信适配器作为EtherNet/IP控制网络与其他技术之间的一个网关，可将工业控制设备集成到EtherNet/IP工业以太网中，提高控制系统的灵活性和兼容性。 工业以太网技术和嵌入式技术都是当前应用研究的热点。本文在分析EtherNet/IP工业以太网技术和嵌入式系统发展的基础上，提出了一种工业以太网设备开发方案。该方案既满足了运行网络协议的功能要求，又适应了嵌入式系统采用32位微处理器及嵌入式操作系统的发展趋势，满足Ethernet/I...Using “EtherNet/IP Communication Adapter development” commissioned by Shanghai Hurco industrial automatic company as background, this thesis designs and realizes a communication adapter of Industrial Ethernet based on EtherNet/IP, this communication adapter is used as a gateway between EtherNet/IP control network and other technologies, it can integrate industrial control equipments to EtherNet/IP...学位：工学硕士院系专业：信息科学与技术学院自动化系_系统工程学号：2005130247

Multi-pattern Matching Technology Based on CUDA

文章以经典的多模式匹配算法—AC算法为例,通过对CudA特性的分析,提出了基于CudA的并行模型,设计了适合CudA并行技术的AC匹配算法。实验结果表明,基于CudA的AC匹配算法较CPu上获得了22倍的加速比,有效提高了入侵检测系统的性能。By analyzing the characteristic of CUDA, a parallel module of AC matching algorithm based on CUDA is proposed.Experiment shows that the AC multi-pattern matching algorithm based on GPU gets 22 times speedup ratio than it based on CPU, and it improves the performance of intrusion detection system effectively

Communication Processor’s Boot Loader and I/O Interface Driver

针对Ethernet/IP通信处理器的开发,采用S3C2410ARM9微处理器和Windows CE.NET嵌入式操作系统,建立了通信处理器的BootLoader和I/O接口驱动程序。BootLoader与硬件高度相关,担负着初始化系统硬件和引导操作系统的双重任务。而I/O接口驱动程序使操作系统自动识别外围数据采集设备,为应用程序对底层设备的操控提供服务。实验测试表明该Ethernet/IP通信处理器运行稳定、可靠。Aiming at the design of the Ethernet/IP communication processor, this paper adopts S3C2410 ARM9 microprocessor and Windows CE.NET operating system to develop the communication processor’s Boot Loader program and I/O interface’s driver. The Boot Loader program, which is highly relevant to the hardware, initializes hardware platform and boots Windows CE.NET OS. While the I/O interface’s driver makes the OS detect peripherals automatically, and provides services for the applications to control the bottom equipments. Experimental results show that the Ethernet/IP communication processor operates steadily and credibly.福建省科技计划基金资助项目(2004J020

Design and realization of Ethernet/IP communication adapter

针对工业现场数据的网络化传输,本文构建了工业以太网EtherNet/IP通信适配器的硬件系统,开发了该通信适配器的Boot Loader和I/O接口驱动程序等底层软件;并在EADK软件平台上编写了该通信适配器的应用程序;另外,借助EIPScan软件、EDITT软件、ControlLogix PLC和PCU-ETHIO EtherNet/IP扫描器等工具对该通信适配器进行了完整的通信测试,并在上海交大罗克韦尔实验室的工业网络设备系统中进行了互操作性测试;结果表明该Ethernet/IP通信适配器在数据传输的实时性、稳定性、可靠性等方面有良好的性能,应用前景广阔。Aiming at the network transmission of the industrial field data,the hardware system of an Ethernet/IP communication adapter was constructed,and the Boot Loader and I/O interface driver of this communication adapter was developed.The application software of this communication adapter was designed based on the EADK software platform.In addition,EIPScan,EDITT,ControlLogix PLC and PCU-ETHIO EtherNet/IP scanner were used to test this communication adapter completely.The communication adapter was also tested for its interoperability in Rock- well lab in Shanghai Jiao Tong University.Test results demonstrate that this Ethernet/IP communication adapter has excellent real-time property,stability and reliability in data transmission,and has a good application future.福建省科技计划重点项目(2008H0060)资

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies