Xem 1-20 trên 149 kết quả Data acquisition
  • Tham khảo bài thuyết trình 'supervisory control & data acquisition - software + algrorithmization of control problems', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    ppt30p buisontdtq 04-10-2012 29 7   Download

  • Today, the data acquisition technology has found its way into virtually every segment of electronics. A digital signal processing (DSP) system accepts analog signals as input, converts those analog signals to numbers, performs computations using the numbers and eventually converts the results of the computations back into analog signals. Once converted to numbers, signals are unconditionally stable. Error detection and correction methods can be applied to store,transmit and reproduce numbers with no corruption. Signals stored digitally are really just large arrays of numbers.

    pdf351p namde01 11-04-2013 31 7   Download

  • Today, the data acquisition technology has found its way into virtually every segment of electronics. A digital signal processing (DSP) system accepts analog signals as input, converts those analog signals to numbers, performs computations using the numbers and eventually converts the results of the computations back into analog signals. Once converted to numbers, signals are unconditionally stable. Error detection and correction methods can be applied to store, transmit and reproduce numbers with no corruption....

    pdf352p greengrass304 15-09-2012 21 3   Download

  • There has been a small revolution in data acquisition systems for scientific use in recent years. It was not so long ago that hardware and processing power were expensive. and software nonexistent. Every program had to be written from scratch in a low-level language and, if you did not want your program to.take all night to run, it usually included large chunks of assembler code as well. Nowadays there are many data acquisition systems to choose from, with good hardware and vastly improved software running on fast personal computers....

    pdf246p gian_anh 18-10-2012 19 2   Download

  • An open data communication protocol developed in 1979 Published by Modicon Open structure Flexible Widely known Supplied by many SCADA and HMI software Have OPC Servers 2 serial transmission modes: ASCII 10 bits RTU (Binary) 11 bits Communication interface RS-232/485 Ethernet (TCP/IP) Station Device: 0 ~ 255 Digital input 1xxxx: 4 digits for hexadecimal address (0000 ~ FFFF) 1xxxxx: 5 digital for decimal address (0 ~ 65535) Digital output 0xxxx: 4 digits for hexadecimal address (0000 ~ FFFF) 0xxxxx: 5 digital for decimal address (0 ~ 65535) Analog input 4xxxx: 4 dig...

    ppt14p buisontdtq 04-10-2012 46 13   Download

  • Control the flow of information security, accessibility, data control Centralize resources save cost on local work stations and peripherals Simplify data / software management Backups, IS maintenance Share information with multiple users Distribute tasks reduce local need CPU power Master / Slave (Similar to the teacher- student relationship) Peer to Peer (Similar to the workgroup concept) Client / Server (Similar to an automated teller transaction)

    ppt65p buisontdtq 04-10-2012 25 10   Download

  • Until fairly recently most scientific data-gathering systems and industrial control procedures were based on electromechanical devices such as chart recorders and analogue gauges. The capability to process and analyse data was rather limited (and in some cases error prone) unless one had access to a minicomputer or mainframe. Today, that situation has changed considerably. I am sure that most potential readers of this book will be aware of the profound effect the PC has had on the way in which engineers and scientists are able to approach data-gathering tasks....

    pdf483p camchuong_1 04-12-2012 22 7   Download

  • Supervised learning methods for WSD yield better performance than unsupervised methods. Yet the availability of clean training data for the former is still a severe challenge. In this paper, we present an unsupervised bootstrapping approach for WSD which exploits huge amounts of automatically generated noisy data for training within a supervised learning framework. The method is evaluated using the 29 nouns in the English Lexical Sample task of SENSEVAL2.

    pdf8p bunbo_1 17-04-2013 16 1   Download

  • This course manual teaches you how to use LabVIEW to develop test and measurement, data acquisition, instrument control, datalogging, measurement analysis, and report generation applications. This course manual assumes that you are familiar with Windows, Macintosh, or UNIX and that you have experience writing algorithms in the form of flowcharts or block diagrams.

    pdf388p longmontran 15-01-2010 160 101   Download

  • Supervisory Control And Data Acquisition (SCADA) = công nghệ tự động hóa + điều khiển Đang phát triển và có khuynh hướng phát triển ở trong mọi lĩnh vực của công nghiệp. Trong mười năm trở lại đây ở các nước tiên tiến quan tâm mạnh mẽ.

    ppt34p buisontdtq 04-10-2012 65 30   Download

  • The book is intended to be a collection of contributions providing a bird’s eye view of some relevant multidisciplinary applications of data acquisition. While assuming that the reader is familiar with the basics of sampling theory and analog-to-digital conversion, the attention is focused on applied research and industrial applications of data acquisition. Even in the few cases when theoretical issues are investigated, the goal is making the theory comprehensible to a wide, application-oriented, audience....

    pdf329p 123859674 04-07-2012 32 8   Download

  • Interface converter, for converting RS-232 to RS-422 and RS-485, with electrical isolation, 2 channels Bidirectional, wireless, 2400 MHz transmission system (European version), consisting of 2 transceivers (transmitter and receiver) and two antennas with connecting cable Fieldline Modular Wireless IO set, consisting of: Wireless IO base station for one Wireless IO terminal and Wireless IO device, 8 digital inputs, 8 digital outputs

    ppt23p buisontdtq 04-10-2012 21 8   Download

  • Tham khảo tài liệu 'data acquisition part 1', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf25p 181024119872 07-02-2012 18 5   Download

  • Tham khảo tài liệu 'data acquisition part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf30p 239198719 01-02-2012 28 4   Download

  • Tham khảo tài liệu 'data acquisition part 13', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf25p 181024119872 07-02-2012 21 4   Download

  • Bài giảng "Hệ thống thông tin công nghiệp - Chương 3: DAS data acquisition systems" trình bày các nội dung: DAS overview; measurement, sensors, transducers; conditioners, các bộ chuẩn hóa tín hiệu; MUX, S&H, ADCs; microcontrollers and Data Processing, database, case studies - Monitoring systems. Mời các bạn cùng tham khảo.

    pdf39p nhasinhaoanh_09 13-10-2015 14 4   Download

  • Tham khảo tài liệu 'data acquisition part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf30p 239198719 01-02-2012 26 3   Download

  • Tham khảo tài liệu 'data acquisition part 8', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf30p 239198719 01-02-2012 24 3   Download

  • Tham khảo tài liệu 'data acquisition part 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf25p 181024119872 07-02-2012 19 3   Download

  • Tham khảo tài liệu 'data acquisition part 11', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf25p 181024119872 07-02-2012 22 3   Download

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