This article describes an implementation of real-time simulation and control in DEVS-Scheme, a knowledge-based, discrete event environment. We illustrate a methodology in which the plant, its actuators and sensors are described by discrete event models developed within the event-based control paradigm. A model of the controller is employed to validate its design in a plant/actuator/sensor exper...

The problem of safe failure diagnosis in discrete event systems is addressed. Starting from the standard definition of diagnosability of discrete event systems, which deals with the problem of detecting the occurrence of an unobservable event using the available observations on the system, the problem of performing the detection before the system executes a forbidden string is introduced. For e...

Simulation has been used traditionally to solve other areas problems. Real time applications like videogames use typically a continuous simulation scheme. That way of operation has disadvantages that can be avoided using a discrete event simulator as a game kernel. This paper proposes the integration of a discrete event simulator into real time applications to control the applications simulatio...

In this paper, the state space partitioning in the interface of the hybrid control system is modeled using covering halfspaces; this formulation extends the model introduced in [7]. The covering halfspaces are used to define a set of plant events and a discrete event system model is generated which captures the behavior of the plant and interface of the hybrid control system.

ii Preface The following material has been selected for the course " Discrete Event Dynamic Systems " which is part of the curriculum for students in electrical engineering at Swiss Federal Institute of Technology, Zurich. The course has been given the first time in the summer term 1998. The book material not only deals with dynamic systems, it is dynamic itself. During the current term, it wil...

This work describes an application of queueing network to model the insect population. The interarrival time and service time are both exponentially distributed. Preliminary results have been obtained to show the development of the insect population. Future work for the model’s potential development and uses are also discussed. Index Terms – Discrete event system; Queueing system; Olive fly; Po...

Consanguinity or inter-cousin marriage is a phenomenon quite prevalent in certain regions around the globe. Consanguineous parents have a higher risk of having offspring with congenital disorders. It is difficult to model large scale consanguineous parental populations because of disparate cultural issues unique to regions and cultures across the globe. Although consanguinity has previously bee...

This paper presents the model–based diagnosis in the framework of discrete–event systems. Timed automata are used as a discrete–event representation which is suitable for consistency–based diagnosis. The diagnostic statement is based on the observation whether the measured event–time sequences are consistent with the timed automata. The diagnostic algorithm can be applied online because it dete...

A new technique for the control of mobile robots using a discrete event model is presented. Physical obstacles are represented by constraints on the motion of the robot. In the discrete event model, the discrete state of the system is de-ned by the currently active constraint. This paper uses dynamic constraints which depend upon the velocity as well as the position of the robot. Dynamic constr...