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该文分析了数据采集系统的结构与数据采集方式,提出了实时数据库与DCS系统之间实现物理隔离的数据采集方法,研究了基于OPC技术的异构数据集成解决方案,探讨了数据采集系统中实时数据的传输与通信方法,为实现流程工业生产调度与控制系统的集成提供了一种新的数据采集与处理方法。 相似文献
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This is an experimental study to investigate the feasibility of employing fuzzysets theory in an integrated machine-fault
diagnostic system. This system consists of modules for data acquisition, data processing, features extraction, fault clustering
and fault assignment. Among these tasks, fault clustering and fault assignment are accomplished using fuzzy-sets-based procedures.
The theoretical foundation of this study is discussed, with case studies. 相似文献
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基于DSP的光纤应变仪完成了VC33与应变测量仪之间的数据采集和数据处理,在采集和处理的软件设计方面进行了深入探讨,做了等强度梁的加载实验。实验结果表明:应变随加载外力的变化曲线线性度较好,验证了该采集与处理方法及软件技术的可行性。 相似文献
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选用泓格7080、7050模块进行数据采集和数据输出,采用基于最小二乘法的三次非均匀B样条曲线进行数据加工,使用VB控件和Access数据库完成数据查询、参数设置以及系统帮助.该系统实现凸轮轮廓测试自动化,提高了生产效率. 相似文献
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N. V. Astakhova I. M. Salamatin V. N. Shvetsov 《Instruments and Experimental Techniques》2004,47(5):619-624
A special structure and operating algorithm for a data acquisition subsystem have been developed for spectrometric experiments in which data are buffered in the memory. Universal basic software and driver-level programs for each particular spectrometer are both used in this subsystem. It is proposed that the experimental technique be taken into account in every measurement by specifying the spectrometer-state vector in terms of the variable parameters. Without any modification, such data acquisition subsystem programs are suitable for use with different spectrometers and impose no restrictions on the application of any experimental technique. A structure has been developed for the software used in a system for automating experiments, in which it is possible to perform the preliminary (and complete) on-line mathematical processing of experimental data and to realize a mode of processing that would permit the automatic cyclic execution of such operations as editing the composition of experimental data, computing, and analyzing the results. 相似文献
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V. M. Aulchenko A. G. Bogdanchikov A. A. Botov D. A. Bukin M. A. Bukin T. V. Dimova V. P. Druzhinin A. A. Korol’ S. V. Koshuba A. I. Tekut’ev Yu. V. Usov E. A. Chekushkin 《Instruments and Experimental Techniques》2007,50(6):778-794
A new data acquisition system for the SND detector is presented. The digitizing electronics, the detector triggering and monitoring subsystems, and the organization of the data transmission to the computer are described. The architecture of the software part of the data acquisition system, the operator’s interface, and the processes of event acquisition, processing, and monitoring are presented. The results of system testing on cosmic events and a random-triggering generator are described. 相似文献
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D. A. Amerkanov G. I. Gorkin E. M. Ivanov N. A. Ivanov O. V. Lobanov V. V. Pashuk 《Instruments and Experimental Techniques》2016,59(3):331-332
An absolute proton beam monitor based on a two-section ionization chamber is described. Flux value data are read out of the monitor in the real-time mode without its preliminary calibration. A softwarecontrolled circuit for experimental data acquisition and processing has been developed. 相似文献
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CAN网络在汽车控制系统的应用 总被引:1,自引:0,他引:1
王立萍 《工业仪表与自动化装置》2009,(5):77-79
针对汽车布线庞大复杂的问题,设计了一种汽车CAN网络控制系统。系统分为高速CAN和低速CAN两部分,由高速数据采集模块、低速数据采集模块、仪表显示模块、车灯控制模块、上位机监控模块组成。完成了模拟信号、数字信号和开关信号的采集与处理;油量、水温、转速、车速、本次里程和总里程的输出显示。经试验调试表明,两条CAN网络的数据传输速率分别达到500 kbps和125 kbps,满足发动机的高速和实时性要求以及车身的普通实时性通信要求。 相似文献
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基于产品信息模型的智能型级进模CAD/CAM系统 总被引:6,自引:0,他引:6
介绍的级进模CAD/CAM系统,为模具CAD/CAM的集成化和智能的化发展提供了一种新的模式。系统采用星状结构,各个系统以产品信息模型为信息核心集成为统一整体,初步实现并行设计思想。 相似文献
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基于 MCGS的变电站自动化监控系统设计 总被引:1,自引:0,他引:1
针对变电站自动化监控技术的职工培训,要建设一套完整的自动化监控系统实训基地,巨大的资金压力是每一个学校所担忧的。面对这种状况提出了基于MCGS的变电站自动化监控系统设计构想。变电站自动化监控系统负责对变压器、高压断路器、输电线路、电网接地等保护的实时监控。通过MCGS组态方式,将计算机技术和通信技术应用到多媒体教学中,实现对供配电系统的模拟量、数字量、状态量等实时采集和数据处理。提高了教学手段和教学效果,同时减轻了实训设备投资的压力。 相似文献
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M. Yu. Bogolyubsky V. A. Viktorov V. A. Onuchin V. S. Petrov B. V. Polishchuk S. A. Sadovsky V. A. Sen’ko M. M. Soldatov A. S. Solov’ev P. V. Stolpovsky Yu. V. Kharlov N. A. Shalanda V. I. Yakimchuk N. A. Kuz’min V. P. Obudovskii Yu. P. Petukhov N. L. Rusakovich S. Ya. Sychkov V. B. Flyagin 《Instruments and Experimental Techniques》2007,50(5):664-672
A structure of the multicomputer data acquisition complex for the Hyperon-M experiment at the U-70 accelerator (Protvino, Russia) is described. This complex has been designed to collect and merge data from several particle detectors, the electronic systems of which are made either to the MISS or SUMMA standard. The MISS system is autonomously operated under control of a special ЛЭ-74 controller that collects information in its internal buffer storage during a beam spill. The data acquired are combined with the information from the SUMMA electronics and are copied to an external storage device (a hard disk of a computer) in intervals between spills. On the contrary, software control is needed for the SUMMA electronics to read data on each event. Software-and hardware-based methods are used to provide joint operation of the electronic systems made to diverse standards and guarantee that the streams of incoming data are correctly merged. The problems of net interactions between different parts of the multicomputer system and monitoring of this system are analyzed. 相似文献
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该系统以单片机和FPGA为核心控制器件,实现了波形采集、存储与回放功能。整个系统由信号调理、比较电路、采集存储、数据处理、人机交互等模块组成。信号调理模块采用高速低躁声运放AD8038实现高阻输入、幅度控制;比较电路采用LM311实现被采集信号周期的测量;数据采集模块采用AD5540芯片,在FPGA时序控制下采样;C8051F020单片机作为总控制器,与FP-GA内部的双口RAM和读写信号相结合,实现数据的存储,以及回放前数据的读取;信号输出部分采用DA芯片THS5651和高速运放AD8039相结合,实现了低输出阻抗和信号幅度的控制。经测试,系统功能齐全,波形完整,回放频率非常准确。 相似文献
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基于虚拟仪器的测量分析系统 总被引:4,自引:10,他引:4
分析了虚拟仪器的基本工作原理,介绍了基于虚拟仪器技术开发的一套测量分析系统,该系统支持不同类型信号的多通道高速数据采集和处理。其硬件由传感器、便携式A/D和计算机组成,通信接口为计算机的并行打印口。该系统软件编制综合采用了汇编、数据库、自动化等多种编程技术,可以实现滤波、加窗、谱分析等多种分析功能,并能够进行多通道的实时采集绘图和分析。给出了该系统的一些测量应用实例。 相似文献
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DSP技术在线阵CCD测量系统中的应用 总被引:21,自引:0,他引:21
本文介绍数字信号处理器DSP在线阵CCD信号实时采集与处理系统中的应用。测量系统采用CCD传感器光采样与ADC数据采集、DSP数据处理三级流水线结构。结合AD采样技术, 充分发挥DSP处理器片内存储器容量大,快速灵活运算能力的特点,使用DSP片内双数据缓冲区交替对CCD进行信号采集和数据处理;在进行数据处理过程中,DSP以中断方式读取AD采样结果。文章还介绍了DSP的线阵CCD系统在LAMOST光纤定位单元定位精度检测装置中的应用。 相似文献