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Patent US5408218A successfully refreshed from Google Patents.
US5408218A
Expired / Lapsed
US
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Model based alarm coordination
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1993-03-19
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Granted: 1995-04-18
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Expires: 2013-03-19
Abstract
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.
Inventors
- 👤 Johan Svedberg
- 👤 Goran Lindquist
- 👤 Weine Eriksson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:49
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/30; G06F11/32; G06F11/324; G06F11/327; G06F11/07; G06F11/0703; G06F11/0706; G06F11/0709; G06F11/0766; G06F11/0775; G06F11/0781
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
82 words
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.
Claim 2
Dependent Claim
82 words
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.
Claim 3
Dependent Claim
23 words
The alarm coordination system of claim 1 further comprising an operation support system providing management level control of said model-based alarm coordination system.
Claim 4
Dependent Claim
25 words
The alarm coordination system of claim 2 wherein said means for detecting out-of-specification performance includes a functional self-test program in each of said managed objects.
Claim 5
Dependent Claim
123 words
The alarm coordination system of claim 3 wherein said means for differentiating between managed objects includes: means for generating primary alarm notifications within said managed objects with internal faults; means for generating secondary alarm notifications within said managed objects which have out-of-specification performance due to faults in other of said managed objects; means within said managed objects for including fault identification messages in said primary alarm notifications and said secondary alarm notifications, said fault identification messages being generated in response to said managed objects sensing faults, and said fault identification messages identifying the generating managed object and the fault sensed; and means for transmitting said primary alarm notifications and said secondary alarm notifications from managed objects sensing faults to said operation support system.
Claim 6
Dependent Claim
66 words
The alarm coordination system of claim 4 wherein said means for localizing said faulty managed objects includes: means for establishing dependency relationships between said managed objects; means within said managed objects for generating requests to localize said faulty managed objects; and means for transmitting said requests to localize and fault identification messages from said faulty managed objects to managed objects with which said dependency relationships exist.
Claim 7
Dependent Claim
174 words
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: 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.
Claim 8
Dependent Claim
174 words
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: 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.
Claim 9
Dependent Claim
38 words
The model-based alarm coordination system of claim 6 further comprising means within said managed objects for generating requests to localize said fault-causing managed objects, and said fault identification message being transmitted in conjunction with said requests to localize.
Claim 10
Independent Claim
75 words
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: 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.
Claim 11
Independent Claim
75 words
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: 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.
Claim 12
Dependent Claim
25 words
The method of claim 8 further comprising the step of providing an operation support system providing management level control of said model-based alarm coordination system.
Claim 13
Dependent Claim
23 words
The method of claim 9 wherein the step of detecting out-of-specification performance includes performing a functional self-test in each of said managed objects.
Claim 14
Dependent Claim
111 words
The method of claim 10 wherein the step of differentiating between managed objects includes: generating primary alarm notifications within said managed objects with internal faults; generating secondary alarm notifications within said managed objects which have out-of-specification performance due to faults in other of said managed objects; generating within said managed objects, fault identification messages in response to said managed objects sensing faults, said fault identification messages identifying the generating managed object and the fault sensed; including said fault identification message in said primary alarm notifications and said secondary alarm notifications; and transmitting said primary alarm notifications and said secondary alarm notifications from managed objects sensing faults to said operation support system.
Claim 15
Dependent Claim
58 words
The method of claim 11 wherein the step of localizing said faulty managed objects includes: establishing dependency relationships between said managed objects; generating within said managed objects, requests to localize said faulty managed objects; and transmitting said requests to localize and fault identification messages from said faulty managed objects to managed objects with which said dependency relationships exist.
Claim 16
Independent Claim
161 words
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: 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.
Claim 17
Independent Claim
161 words
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: 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.
Claim 18
Dependent Claim
36 words
The method of claim 13 further comprising the steps of: generating within s aid managed objects, requests to localize said fault-causing managed objects; and transmitting said fault identification messages in conjunction with said requests to localize.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-04-17 | 1998-10-17 | 1999-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-17 | 2002-10-17 | 2003-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-17 | 2006-10-17 | 2007-04-18 | $7700.00 | Window Closed / Lapsed |