SCADA stands for supervisory control and data acquisitionany application that gets data about a system in order to control that system is a SCADA. Some sensors detect conditions“on” or an “off”. That “on” or an “off” originate as an on/off, Such as a valve sensor or it can represent an analog value that crosses a threshold value. Other sensors measure more complex situations where exact measure...

This paper proposes an unusual event recognition algorithm, which is a part of a mobile alarm system. Our systems focus on unusual event. When the system detects the unusual event, the photos of emergency situation are passed to the user’s portable devices such as mobile phone or PDA along with event description to help the user’s final decision. The system combines the foreground segmentation,...

A questionnaire was developed to m e y the attitudes of a sinall population of Control Desk Engineers (CDES) at a UX. manufacturing plant. The general aims of the survey were to obtain information to enable an asscsgnent of CDEs responses to their alarm system. Specific objectives of the survey wen: 1. To elicit the CDEs' definition of the term 'alarm' ; 2. To examine the CDES' alarm handling a...

Nowadays the organizations are facing the number of threats every day in the form of viruses and attack etc. Since many different mechanisms were preferred by organizations in the form of intrusion detection and prevention system to protect its organizations from these kinds of attacks. Intrusion Detection System (IDS) is considered as a system integrated with intelligent subsystems. In this pa...

A marine automation system for merchant ships consists of machinery control & monitoring system and cargo control & monitoring system. Extension Alarm System (EAS) has been installed for machinery control & monitoring system to provide machinery alarms to bridge, cabins, and public areas. However, EAS of the latest marine automation systems requires the integrated functionality for both machine...

The problem of false alarms in electronic monitoring systems has grown over the last decade. This growth has been associated with increasing system complexity and advances in the state of the art. Studies have shown that some systems exhibit as many as 40% or more “false pulls,” and associated with the false-alarm problem, a large volume of wasted or ineffective maintenance actions exist. What ...

The introduction of new technologies like adaptive automation systems and advanced alarms processing and presentation techniques in nuclear power plants is already having an impact on the safety and effectiveness of plant operations and also the role of the control room operator. This impact is expected to escalate dramatically as more and more nuclear power utilities embark on upgrade projects...

• In this work, an optimal alarm system is developed to predict whether a financial time series modeled via Fractionally Integrated Asymmetric Power ARCH (FIAPARCH) models, up/downcrosses some particular level and give an alarm whenever this crossing is predicted. The paper presents classical and Bayesian methodology for producing optimal alarm systems. Both methodologies are illustrated and th...

Alarms are used in many clinical applications, but they are often less than optimal because the design and implementation of alarms has not always taken the cognitive capacity and processing mechanisms of the user into account. As a result alarms are frequently too loud, irritating, confusing, badly designed, and too numerous, resulting in them often being turned off and hindering, rather than ...

Animal alarm calls can encode information about a predator's category, size, distance or threat level. In non-human primates, alarm calls typically refer to broad classes of disturbances, in some instances to specific predators. Here, we present the results of a field experiment with a New World primate, the black-fronted titi monkey (Callicebus nigrifrons), designed to explore the information ...