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Browsing by Subject "distributed control"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Analiza możliwości sterowania rozproszonego z wykorzystaniem technologii GPRS
    (Wydawnictwa AGH, 2006) Simicz, Aleksander
    This paper presents analysis of transmission delays in GPRS telemetry system. The system is based on MT-101 module. This is industrial controller with SIM card, so it can works in GSM/GPRS cellular phone network. Data are received from the module by GPRS modem which is connected to a main PC computer. Data are transmitted through GPRS network having a form of frames of industrial Modbus protocol. On the main PC an OPC Server is running, making the MT-101's resources accessible. With a wrapper DLL library it was possible to process and visualize data using an application in MATLAB. The main purpose of the research was to compare delays for modes of transmission. The first one was based on sending test packet directly after information about receiving previous packet. On the second case frames was sending with constant time interval, consequently was making transmission delays. The research have showed that the first approach is much better. It is clearly visible on delay histograms. It is possible to develop a distributed control system based on GPRS technology. Dynamical objects controlled in such a way must be asymptotically stable.
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Inteligentne sterowanie wieloma obiektami dynamicznymi korzystające z idei Industry 4.0
    (Data obrony: 2018-09-26) Pacanowski, Piotr
    Wydział Elektrotechniki, Automatyki, Informatyki i Inżynierii Biomedycznej