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Titolo:
DEVELOPMENT OF THE EFFECTIVENESS MEASURE FOR AN ADVANCED ALARM SYSTEMUSING SIGNAL-DETECTION-THEORY
Autore:
PARK JK; CHOI SS; HONG JH; CHANG SH;
Indirizzi:
KOREA ADV INST SCI & TECHNOL,DEPT NUCL ENGN,YUSONG GU TAEJON 305701 SOUTH KOREA
Titolo Testata:
IEEE transactions on nuclear science
fascicolo: 2, volume: 44, anno: 1997,
pagine: 163 - 172
SICI:
0018-9499(1997)44:2<163:DOTEMF>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUCLEAR-POWER-PLANTS; EXPERT-SYSTEM; DECISION-MAKING; MANAGEMENT;
Keywords:
ADVANCED ALARM SYSTEMS; EFFECTIVENESS; EVALUATION; INFORMATIVENESS; OPERATOR PERFORMANCE; SIGNAL DETECTION THEORY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
J.K. Park et al., "DEVELOPMENT OF THE EFFECTIVENESS MEASURE FOR AN ADVANCED ALARM SYSTEMUSING SIGNAL-DETECTION-THEORY", IEEE transactions on nuclear science, 44(2), 1997, pp. 163-172

Abstract

Since many alarms which are activated during major process deviationsor accidents in nuclear power plants can result in negative effects for operators, various types of advanced alarm systems that can select important alarms for the identification of process deviation have beendeveloped to reduce the operator's workload, However, the irrelevant selection of important alarms could distract the operator from correctidentification of process deviation, Therefore, to evaluate the effectiveness of the advanced alarm system, a tradeoff between the alarm reduction rate (how many alarms are reduced?) and informativeness (how many important alarms that are conducive to identifying process deviation are provided?) of an advanced alarm system should be considered, Inthis paper, a new measure is proposed to evaluate the effectiveness of an advanced alarm system with regard to the identification of process deviation, Here, the effectiveness measure is the combination of informativeness measure and reduction rate, and the informativeness measure means the information processing capability performed by the advanced alarm system including wrong rejection and wrong acceptance, and itcan be calculated using the signal detection theory (SDT), The effectiveness of the prototype alarm system was evaluated using the loss of coolant accident (LOCA) scenario, and the validity of the effectiveness measure was investigated from two types of the operator response, such as the identification accuracy and the operator's preference for the identification of LOCA. From the investigation, it can be concluded that the effectiveness measure is appropriately used to evaluate an advanced alarm system because the operator can perform the identification of process deviation more correctly and easily when the effectiveness score is sufficiently high.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 07:54:57