نتایج جستجو برای: network control system (NCS)

تعداد نتایج: 3694468  

Journal: :international journal of smart electrical engineering 2013
mohsen jahanshahi sayyid mohsen houshyar amir reza zare bidaki3

the networked control system in modern control widely uses to decrease the implementation cost and increasing the performance. ncs in addition to its advantages is inevitable. nevertheless they suffer of some limitations and deficiencies. packet loss is one of the main limitations which affect the control system in different conditions and finally may lead to system instability. for this reason...

2003
Yodyium Tipsuwan Mo-Yuen Chow

The use of a data network in a control loop has gained increasing attentions in recent years due to its cost effective and flexible applications. One of the major challenges in this so-called networked control system (NCS) is the network-induced delay effect in the control loop. Network delays degrade the NCS control performance and destabilize the system. A significant emphasis has been on dev...

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...

2006
Jaehyun Han Jeamyoung Youn

In the design of a network control system (NCS), both temporal and functional behaviors of an NCS should be considered in order to meet the desired performance. In conventional approaches for NCS design, the control performance cannot be evaluated precisely during the design phase since temporal behaviors of the NCS are not taken into account. In this paper, we proposed a formalized design proc...

2013
M. Brindha

Networked Control System (NCS) is a synthetic application which combines control science, computer science and network technology. It is a kind of feedback control systems wherein the control loops are closed through real time control network. NCS technology is applied in industry control system because of its simple structure, easy maintenance and high reliability. Networked control systems (N...

2009
Michael Lemmon

Many of the results for event-triggered control of embedded systems can be extended to networked control systems. A networked control system or NCS is a set of controllers that coordinate their actions over a communication network. For NCS, event-triggering is used to decide when to transmit or broadcast the system state to a local controller’s neighbors. Using events to trigger communication a...

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. ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...

2012
Miguel Díaz-Cacho Emma Delgado José A. G. Prieto Joaquín López

This paper proposes a new middleware solution called Network Adaptive Deadband (NAD) for long time operation of Networked Control Systems (NCS) through the Internet or any shared network based on IP technology. The proposed middleware takes into account the network status and the NCS status, to improve the global system performance and to share more effectively the network by several NCS and se...

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...

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