Model based alarm coordination
First Claim
1. A model-based alarm coordination system for controlling the reporting of faults in complex electrical systems having a plurality of functionally related managed objects, said coordination system comprising:
- means for detecting out-of-specification performance in said plurality of functionally related managed objects;
means for differentiating between managed objects which have out-of-specification performance due to internal faults, and managed objects which have out-of-specification performance due to faults in other of said functionally related managed objects; and
means for localizing said managed objects with internal faults.
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Abstract
A model-based alarm coordination system coordinates primary and secondary alarm notifications in order to ascertain whether they are caused by a single fault, or multiple faults, in a complex electrical system. The alarm coordination function is part of a larger overall Fault Management Support (FMS) system. The FMS system is a framework that, when combined with object-specific fault management parts, offers uniform fault management functions to managed objects (MOs) within the electrical system. Each MO is viewed as a self-contained, functional unit, and is responsible for its own internal fault management. Therefore, there are no global or centralized fault management functions. Object relation models, based on functional dependencies between objects, are used to automatically solve the alarm coordination problem which arises when a large number of faults are reported in response to a single fault which causes out-of-specification performance in many dependent objects. Little object-specific programming is required.
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Citations
14 Claims
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1. A model-based alarm coordination system for controlling the reporting of faults in complex electrical systems having a plurality of functionally related managed objects, said coordination system comprising:
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means for detecting out-of-specification performance in said plurality of functionally related managed objects; means for differentiating between managed objects which have out-of-specification performance due to internal faults, and managed objects which have out-of-specification performance due to faults in other of said functionally related managed objects; and means for localizing said managed objects with internal faults. - View Dependent Claims (2, 3, 4, 5)
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6. A model-based alarm coordination system for identifying and localizing faults in complex electrical systems having a plurality of functionally related managed objects, said coordination system comprising:
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means for generating primary alarm notifications within said functionally related managed objects which are fault-causing; means for generating secondary alarm notifications within said functionally related managed objects which are not fault causing, but are affected by said fault-causing managed objects; means within said functionally related managed objects for generating requests to coordinate said primary and secondary alarm notifications; means within said functionally related managed objects for generating fault identification messages in response to said managed objects sensing faults, said fault identification messages identifying the generating managed object and the type of fault sensed; means for establishing dependency relationships between said functionally related managed objects; and means for transmitting said fault identification messages from managed objects sensing faults to managed objects with which said dependency relationships exist, said fault identification message being transmitted in conjunction with said primary alarm notifications, said secondary alarm notifications, and said requests to coordinate. - View Dependent Claims (7)
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8. A method for controlling the reporting of faults in complex electrical systems having a plurality of functionally related managed objects, said method comprising the steps of:
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detecting out-of-specification performance in said plurality of functionally related managed objects; differentiating between managed objects which have out-of-specification performance due to internal faults, and managed objects which have out-of-specification performance due to faults in other of said functionally related managed objects; and localizing said managed objects with internal faults. - View Dependent Claims (9, 10, 11, 12)
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13. A method for identifying and localizing faults in complex electrical systems having a plurality of functionally related managed objects, said method comprising the steps of:
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generating primary alarm notifications within said functionally related managed objects which are fault-causing; generating secondary alarm notifications within said functionally related managed objects which are not fault-causing, but are affected by said fault-causing managed objects; generating within said functionally related managed objects, requests to coordinate said primary and secondary alarm notifications; generating within said functionally related managed objects, fault identification messages in response to said managed objects sensing a fault, said fault identification message identifying the generating managed object and the type of fault sensed; establishing dependency relationships between said functionally related managed objects; and transmitting said fault identification messages from managed objects sensing faults to managed objects with which said dependency relationships exist, said fault identification message being transmitted in conjunction with said primary alarm notifications, said secondary alarm notifications, and said requests to coordinate. - View Dependent Claims (14)
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Specification