نتایج جستجو برای: networked control systems ncs

تعداد نتایج: 2358638  

Journal: :the modares journal of electrical engineering 2015
hossein kargar jafar zarei

in this study, a robust controller is designed for fuzzy network control systems (ncss) using the static output feedback. delay and data packet dropout affect on the stability of network control systems, and therefore, the asymptotic stability condition is established considering delay and data packet dropout. delay is time-varying while the lower and upper bounds for delay is defined, and the ...

Journal: :JCP 2009
Mário J. G. C. Mendes Bruno M. S. Santos José M. G. Sá da Costa

Industrial distributed networked control systems use different communication networks to exchange different critical levels of information. Real-time control, fault diagnosis (FDI) and Fault Tolerant Networked Control (FTNC) systems demand one of the more stringent data exchange in the communication networks of these networked control systems (NCS). When dealing with large-scale complex NCS, de...

Journal: :IEEE Trans. Contr. Sys. Techn. 2002
Feng-Li Lian William Moyne Dawn M. Tilbury

This paper discusses the impact of network architecture on control performance in a class of distributed control systems called networked control systems (NCSs) and provides design considerations related to control quality of performance as well as network quality of service. The integrated network-control system changes the characteristics of time delays between application devices. This study...

Networked control systems (NCSs) are distributed control systems in which the nodes, including controllers, sensors, actuators, and plants are connected by a digital communication network such as the Internet. One of the most critical challenges in networked control systems is the stochastic time delay of arriving data packets in the communication network among the nodes. Using the Smith predic...

2009
Eloy Garcia Panos J. Antsaklis

The applicability of Model Based Networked Control Systems (MB-NCS) is often limited by the inexact knowledge of the dynamics of the system being controlled. On-line identification of system parameters is used in this paper to upgrade the model of the system, which is used to control the real system when feedback information is unavailable. Background material is offered on the topic of paramet...

2008
Jose Sa da Costa Mário J. G. C. Mendes

When dealing with large-scale complex networked control systems, designing FDI/FTC systems is a very difficult task due to the large number of sensors and actuators spatially distributed and networked connected. Despite the research effort on developing FTC systems for NCS most of these developments still being designed globally leading to centralized FTC solutions inadequate to NCS or, assume ...

Journal: :J. Network and Computer Applications 2011
Sinan Senol Kemal Leblebicioglu Ece G. Schmidt

Networked Control Systems (NCS) are distributed control systems where the sensor signals to the controllers and the control data to the actuators are enclosed in messages and sent over a communication network. On the one hand, the design of an NCS requires ensuring the stability of the control system and achieving system response that is as close as possible to that of an ideal system which dem...

2013
Parul yadav

In This research work we discussed about Networked control systems (NCS) for controlling flow rate of two nonintrecting tank processes using ANN controller. Basically NCS are used for distributed computing and control systems with sensors, actuators and controllers that communicate over a shared medium. The distributed nature of NCS and issues related to the shared communication medium pose sig...

2001
Wei Zhang Michael S. Branicky Stephen M. Phillips

IEEE Control Systems Magazine February 2001 Feedback control systems wherein the control loops are closed through a real-time network are called networked control systems (NCSs) [1]-[4]. The defining feature of an NCS is that information (reference input, plant output, control input, etc.) is exchanged using a network among control system components (sensors, controller, actuators, etc.). Fig. ...

2014
Haichen Yu Yongchao Li Cheng Shao

Networked control system (NCS) for industry process control recently has been paid much attention to. A fact that there exists networked-induced time delay in NCS, and the traditional proportional integral derivative (PID) controllers are still used broadly in industrial sites as their strong adaptability and robustness is well known. Therefore, the control engineers must face an unavoidable pr...

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