Temat: dynamic data exchange - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Issue of Data Exchange in the UHF Band RFID System with an Semi-Passive Transponder
Autorzy:: Gotfryd, M.
Lichoń, W.
Pawłowicz, B.
Powiązania:: https://bibliotekanauki.pl/articles/963901.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: RFID
dynamic system
data exchange
semi-passive transponder
Opis:: The article discusses the specifics of data exchange in the UHF band RFID systems using semi-passive transponders. In addition to the antenna and the RFID chip, there is also an additional source of energy (eg. battery) in the structure of such transponder. The battery may be used to implement additional functions such as the ability to measure physical quantities (eg. temperature, humidity). In this regard, particular attention was paid to the discussion of phases of communication between transponder and RWD associated with additional data (measurement results). An analysis of transmitted data frames has been presented. The preliminary results of the measurements have shown that the number of memory block transmitted from transponder has an impact on the effectiveness of RFID system.
Źródło:: International Journal of Electronics and Telecommunications; 2016, 62, 2; 141-146
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Reference trajectory tracking for a multi-DOF robot arm
Autorzy:: Krasňanský, R.
Valach, P.
Soós, D.
Zarbakhsh, J.
Powiązania:: https://bibliotekanauki.pl/articles/229537.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: inverse kinematics
real-time reference tracking
signal generator
multi-DOF
dynamic data exchange
Opis:: This paper presents the problem of tracking the generated reference trajectory by the simulation model of a multi-DOF robot arm. The kinematic transformation between task space and joint configuration coordinates is nonlinear and configuration dependent. To obtain the solution of the forward kinematics problem, the homogeneous transformation matrix is used. A solution to the inverse kinematics is a vector of joint configuration coordinates calculated using of pseudoinverse Jacobian technique. These coordinates correspond to a set of task space coordinates. The algorithm is presented which uses iterative solution and is simplified by considering stepper motors in robot arm joints. The reference trajectory in Cartesian coordinate system is generated on-line by the signal generator previously developed in MS Excel. Dynamic Data Exchange communication protocol allows sharing data with Matlab-Simulink. These data represent the reference tracking trajectory of the end effector. Matlab-Simulink software is used to calculate the representative joint rotations. The proposed algorithm is demonstrated experimentally on the model of 7-DOF robot arm system.
Źródło:: Archives of Control Sciences; 2015, 25, 4; 513-527
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Procedura hardware in the loop w syntezie algorytmów sterowania
Hardware in the loop procedure used for the control system synthesis
Autorzy:: Jaszczak, S.
Powiązania:: https://bibliotekanauki.pl/articles/154658.pdf
Data publikacji:: 2010
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: HIL
hardware-in-the-loop
PLC
Programmable Logic Controller
OPC (OLE for Process Control)
DDE (Dynamic Data Exchange)
programmable logic controller (PLC)
Opis:: W artykule omówiono wykorzystanie technologii OPC do badania systemów sterowania zgodnie z procedurą Hardware In The Loop. Artykuł jest efektem eksperymentów nad zastosowaniem programu Simulink jako aplikacji klienckiej, za pomocą której zrealizowano model obiektu i KepwareOPC jako serwer OPC. Procedura HIL została przeprowadzona w układzie sterowania kursem pojazdu podwodnego z wykorzystaniem sterownika PLC jako platformy wykonawczej algorytmu sterowania i modelu pojazdu podwodnego w programie Simulink.
In this paper possibility of using OPC technology for the process of designing and testing the heading control algorithm according to the Hardware In The Loop (HIL) procedure is described. The main problem in the design of automated systems is the safe real time testing of the control algorithm, during a deployment. This algorithm synthesized at the computer simulation level according to the Model In The Loop procedure with use of specialized software does not take into account specification of the target platform i.e.: limited time for executing a single algorithm loop, limited program memory, limited precision of signal values etc. According to the HIL procedure the control algorithm is implemented using a target executing platform (i.e. PLC, microcontroller, PC + DAQ board, etc.), whilst a plant is the mathematical model in PC memory. The presented text is a result of the experiments on employing Simulink as a client application, which enables simulation of the specific and KepwareOPC as the OPC. The main advantage of the HIL procedure is the possibility of safe real time testing of the control algorithm. Besides the security reasons, also the cost of implementation and testing of algorithm on real object is essential. In the third paragraph the HIL experiment concerning the control of an underwater vehicle course angle is presented. The PLC controller with the control algorithm is a control system, whereas the underwater vehicle model is implemented in the Simulink.
Źródło:: Pomiary Automatyka Kontrola; 2010, R. 56, nr 7, 7; 685-687
0032-4140
Pojawia się w:: Pomiary Automatyka Kontrola
Dostawca treści:: Biblioteka Nauki

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