Making decisions in the field of environmental protection management is highly complex and a solution for reducing this complexity is given by the knowledge-based approach. Such a solution could structure the domain expert knowledge into a knowledge base and later will use this knowledge during the reasoning process. The paper describes a knowledge-based environmental protection system designed...

Security in embedded systems is a topic that is gaining prominence as embedded systems and products are being deployed everywhere to be used in our everyday routines. Security concerns for embedded system developers and its users scales from adversaries having remote to physical access of the system. Increasing security for remote access includes incorporating secure data communication and secu...

This text presents a block diagram proposal of protection system for a PWR nuclear power plant. It describes the plant operation, as well as it defines what a protection system is. Some of the main inherent definitions to protection systems are shown and the system operation is explained in a global form. The block diagram proposed for the protection system can be used as a project foundation f...

This report describes power system component and system modelling for voltage stability studies, as well as a protection system against voltage collapse installed in Sweden. The importance of detailed and accurate models for dynamic loads, tap changer control, generator current limiters and distribution systems is demonstrated in the paper. The necessity to go into details and to do experiments...

This paper is about the thermal diagnosis and control of electric machines or transformer using a Thermal image camera, color sensor, a microcontroller and a PLC. A color sensor is developed which respond to the colors of thermographic images and when overheating or Hot spot occurs it automatically give alarm signal or it can be used to switch off the electric machines or transformer.

As data to be stored in storage subsystems tremendously increases, data protection techniques have become more important than ever, to provide data availability and reliability. In this paper, we present the file system-based data protection (WOWSnap) that has been implemented using WORM (Write-Once-Read-Many) scheme. In the WOWSnap, once WORM files have been created, only the privileged read r...

The authors propose a concept for protection relay systems for operation within a Smart Grid and describe the results of a prototype development. This paper introduces each of the system characteristics that should be considered for protection operation within Smart Grid, and the evaluation methods that were applied under both normal and faulted conditions. The results of a field trial in the 6...

Y our business increasingly relies on computer-controlled systems vulnerable to intrusion and destruction. The recent distributed denial of service attacks (DDoS) against e-commerce companies showed that this vulnerability extends beyond your own corporate networks:The very infrastructure of the Internet is at risk.When infoterrorists use the networks’ high connectivity and low security to laun...

This report describes the design and the implementation of a password protection system that has been proposed as an idea then developed by the author for his undergraduate final year project, at the University of Essex. When designing the system the author has concentrated on adding extra layers of security to the traditional security systems without having to completely replace the existing s...

Synchronized wide area communication has become a mature technology, which makes the real-time interaction between the substations and the wide area protection and control system possible. However, the present protection and control system to handle this real-time data has been recognized to be deficient. This paper begins by reviewing the development history of power system protection, with sp...