The paper describes the application of the traffic engineering framework together with application layer procedures as mechanisms for the reduction of network latency lags. These mechanisms allow using standard and inexpensive hardware and software technologies typically applied for office networking as a means of realising networked control systems (NCSs) with high dynamic control plants, wher...

With the recent interest in closed-loop control using standard wireless networks, there is need for accurate network modelling to study the dynamic interaction between the network protocol and the control system. We present a co-simulation tool, written as a C MEX S-function within Simulink, that emulates a networked control system (NCS) with mixed-traffic stations on an IEEE 802.11b wireless n...

Designing a control system over Wireless Sensor/Actuator Network (WSAN) devices increases the coupling of many aspects, and the need for a sound discipline for writing/designing embedded software becomes more apparent. Such a WSAN-based control architecture is called a Networked Control System (NCS). At present, many frameworks support some steps of the NCS design flow, however there is no end-...

A new Markov-based method for real time prediction of network transmission time delays is introduced. The method considers a Multi-Layer Perceptron (MLP) neural model for the transmission network, where the number of neurons in the input layer is minimized so that the required calculations are reduced and the method can be implemented in the real-time. For this purpose, the Markov process order...

Gregory C. Walsh and Hong Ye and Linda Bushnell1 Department of Mechanical Engineering University of Maryland at College Park, MD 20742 [email protected], [email protected] Abstract In this paper we introduce a novel control network protocol, Try-Once-Discard (TOD), for networked control systems (NCS), and provide, for the rst time, an analytic proof of global exponential stability for both th...

The problem of delay-dependent robust H∞ control for T-S fuzzy descriptor networked control systems with multiple state time-delays is investigated. First, in terms of linear matrix inequality (LMI) approach, an improved delay-dependent criterion is established to ensure that the descriptor system is regular, impulse free and stable with H∞ performance. Without using model transformation and bo...

The aim of this paper is to provide a set of results in stability of model-based networked control systems with intermittent feedback, which we intend will serve as a nexus between the study of systems with instantaneous feedback and with continuous feedback. We apply the concept of Intermittent Feedback to a class of networked control systems known as ModelBased Networked Control Systems (MB-N...

The performance of a class of Model-Based Networked Control System (MBNCS) is considered in this paper. A MB-NCS uses an explicit model of the plant to reduce the network bandwidth requirements. In particular, an Output Feedback MB-NCS is studied. After reviewing the stability results for this system and some lifting techniques basics, two performance measures related to the traditional H2 perf...

Network control system (NCS) approaches for distributed closed-loop systems have been established in industrial control. However, recent advancements cloud computing provide scalable, elastic, and low-cost networked capabilities over the internet, which can be utilized as an extension of NCS, this term, cloud-based (CCS) with a potential replacement controller. The main objective research is to...