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Title: Functional relationship-based alarm processing system

Abstract

A functional relationship-based alarm processing system and method analyzes each alarm as it is activated and determines its relative importance with other currently activated alarms and signals in accordance with the functional relationships that the newly activated alarm has with other currently activated alarms. Once the initial level of importance of the alarm has been determined, that alarm is again evaluated if another related alarm is activated or deactivated. Thus, each alarm's importance is continuously updated as the state of the process changes during a scenario. Four hierarchical relationships are defined by this alarm filtering methodology: (1) level precursor (usually occurs when there are two alarm settings on the same parameter); (2) direct precursor (based on causal factors between two alarms); (3) required action (system response or action expected within a specified time following activation of an alarm or combination of alarms and process signals); and (4) blocking condition (alarms that are normally expected and are not considered important). The alarm processing system and method is sensitive to the dynamic nature of the process being monitored and is capable of changing the relative importance of each alarm as necessary. 12 figs.

Inventors:
Issue Date:
Research Org.:
EG and G Idaho, Inc., Idaho Falls (USA)
OSTI Identifier:
6298642
Patent Number(s):
-US-A7184927
Application Number:
ON: DE89009608
Assignee:
Dept. of Energy INEL; EDB-89-062050
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; ALARM SYSTEMS; ARTIFICIAL INTELLIGENCE; NUCLEAR POWER PLANTS; COMPUTERIZED CONTROL SYSTEMS; DATA ACQUISITION SYSTEMS; DECISION MAKING; INTRUSION DETECTION SYSTEMS; INVENTIONS; PRECURSOR; SAFETY ENGINEERING; CONTROL SYSTEMS; ENGINEERING; NUCLEAR FACILITIES; POWER PLANTS; THERMAL POWER PLANTS; 220400* - Nuclear Reactor Technology- Control Systems; 990210 - Supercomputers- (1987-1989); 055001 - Nuclear Fuels- Safeguards, Inspection, & Accountability- Technical Aspects

Citation Formats

Corsberg, D.R. Functional relationship-based alarm processing system. United States: N. p., 1988. Web.
Corsberg, D.R. Functional relationship-based alarm processing system. United States.
Corsberg, D.R. Fri . "Functional relationship-based alarm processing system". United States.
@article{osti_6298642,
title = {Functional relationship-based alarm processing system},
author = {Corsberg, D.R.},
abstractNote = {A functional relationship-based alarm processing system and method analyzes each alarm as it is activated and determines its relative importance with other currently activated alarms and signals in accordance with the functional relationships that the newly activated alarm has with other currently activated alarms. Once the initial level of importance of the alarm has been determined, that alarm is again evaluated if another related alarm is activated or deactivated. Thus, each alarm's importance is continuously updated as the state of the process changes during a scenario. Four hierarchical relationships are defined by this alarm filtering methodology: (1) level precursor (usually occurs when there are two alarm settings on the same parameter); (2) direct precursor (based on causal factors between two alarms); (3) required action (system response or action expected within a specified time following activation of an alarm or combination of alarms and process signals); and (4) blocking condition (alarms that are normally expected and are not considered important). The alarm processing system and method is sensitive to the dynamic nature of the process being monitored and is capable of changing the relative importance of each alarm as necessary. 12 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {4}
}