Methods and systems for distributed diagnostic reasoning

• US 8,726,084 B2
• Filed: 10/14/2011
• Issued: 05/13/2014
• Est. Priority Date: 10/14/2011
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Bell, Douglas Allen, Felke, Tim
• Primary Examiner(s): Duncan, Marc
• Application Number:
  US13/273,984
• Publication Number:
  US 20130097459A1
• Time in Patent Office: 942 Days
• Field of Search: 714/26, 714/37
• US Class Current: 714/26
• CPC Class Codes: G05B 23/0213 Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols

Abstract

A method for distributed diagnostic reasoning is provided. The method includes establishing a computing node monitoring the operation of a component of a complex system and populating at least one of a processor and the memory of the computing node with one or more standardized executable application modules (SEAMs) and a workflow service. The method further includes creating a configuration file in combination with several SEAMS to create a distributed diagnostic reasoner (DDR) associated with the component. The method also comprises installing the configuration file in the computing node for execution by the processor; and initializing the one or more SEAMS, the configuration file and the workflow service, wherein the workflow service facilitates data flow between the one or more SEAMS and the static data associated with a fault condition resident in the configuration file.

Claims

1. A method for distributed diagnostic reasoning for a subsystem of a complex system comprising:

monitoring an operation of a component of a complex system with a computing node that includes a processor and a memory;

populating at least one of the processor and the memory of the computing node with one or more standardized executable application modules (SEAM) and a workflow service, wherein the one or more SEAMS are unable to communicate directly with each other, a SEAM being a basic un-modifiable software object that is directed to complete specific tasks after being configured by a configuration file;

creating the configuration file to form a distributed diagnostic reasoner (DDR) in conjunction with the one or more SEAMS associated with the component, the DDR also comprising static data associated with a fault condition;

installing the configuration file in the computing node for execution by the processor; and

initializing the one or more SEAMS, the configuration file and the workflow service, wherein the workflow service facilitates data flow between the one or more SEAMS and the static data associated with a fault condition resident in the configuration file.

2. The method of claim 1, wherein the one or more SEAMs includes an Allocate SEAM, a Diagnose SEAM, a Rank SEAM and a Report SEAM.

3. The method of claim 1, wherein the static data associated with a fault condition includes a fault condition template and a fault condition lifecycle model.

4. The method of claim 3, wherein the static data associated with a fault condition includes a response to an event generated by an action completed by each of the one or more SEAMs.

5. The method of claim 4, wherein the static data associated with a fault condition includes diagnostics data report format and a destination list for the static data.

6. The method of claim 2, wherein the Allocate SEAM is configured to associate the fault condition with detected symptoms and creates a new fault condition where no fault condition is associated with detected symptoms.

7. The method of claim 2, wherein the Rank SEAM is configured to perform ranking of symptoms, failure modes, fault isolation tests and corrective actions.

8. The method of claim 2, wherein the Diagnose SEAM is configured to:

retrieve a fault condition lifecycle model;

determine and set a next state for the fault condition;

determine diagnostic partial conclusions about the fault condition for a higher order evaluation based on the next state of the fault condition lifecycle model; and

save the fault condition and the diagnostic partial conclusions to a dynamic memory.

9. The method of claim 2, wherein the Report SEAM is configured to:

retrieve diagnostic partial conclusions about the fault condition form dynamic memory;

retrieve a diagnostic data report format and a destinations list for the static memory;

integrate the diagnostics partial conclusions about the fault condition into the diagnostic data report format; and

send the integrated diagnostics partial conclusions to a destination form the destinations list.

10. A non-transitory computer readable storage media (CRSM) resident within a computing node containing instructions that when executed perform acts of distributed diagnostic reasoning for a subsystem of a complex system, the instructions comprising:

populating at least one of a processor and a memory of the computing node with one or more standardized executable application modules (SEAMs) and a workflow service, wherein the one or more SEAMS are unable to communicate directly with each other, a SEAM being a basic un-modifiable software object that is directed to complete specific tasks after being configured by a configuration file;

installing the configuration file in the computing node for execution by the processor; and

initializing the one or more SEAMS, the configuration file and the workflow service, wherein the workflow service facilitates data flow between the one or more SEAMS and the static data associated with a fault condition resident in the configuration file.

11. The non-transitory CRSM of claim 10, wherein the one or more SEAMs includes an Allocate SEAM, a Diagnose SEAM, a Rank SEAM and a Report SEAM.

12. The non-transitory CRSM of claim 10, wherein the static data associated with a fault condition includes a fault condition template and a fault condition lifecycle model.

13. The non-transitory CRSM of claim 12, wherein the static data associated with a fault condition includes a response to an event generated by an action completed by each of the one or more SEAMs.

14. The non-transitory CRSM of claim 13, wherein the static data associated with a fault condition includes diagnostics data report format and a destination list for the data.

15. The non-transitory CRSM of claim 11, wherein the Allocate SEAM is configured to associate the fault condition with detected symptoms and creates a new fault condition where no fault condition is associated with detected symptoms.

16. The non-transitory CRSM of claim 11, wherein the Rank SEAM is configured to ranking of symptoms, failure modes, fault isolation tests and corrective actions.

17. The non-transitory CRSM of claim 11, wherein the Diagnose SEAM is configured to:

retrieve a fault condition lifecycle model;

determine and set a next state for the fault condition;

determine diagnostic partial conclusions about the fault condition for a higher order evaluation based on the next state of the fault condition lifecycle model; and

save the fault condition and the diagnostic partial conclusions to a dynamic memory.

18. The non-transitory CRSM of claim 11, wherein the Report SEAM is configured to:

retrieve diagnostic partial conclusions about the fault condition form dynamic memory;

retrieve a diagnostic data report format and a destinations list for the static memory;

integrate the diagnostics partial conclusions about the fault condition into the diagnostic data report format; and

send the integrated diagnostics partial conclusions to a destination form the destinations list.

19. A system for the distributed diagnostic reasoning for a subsystem of a complex system comprising:

a plurality of computing nodes arranged in a hierarchy, each computing node including a processor and a memory; and

a computing device, the computing device being configured to;

monitor an operation of a component of a complex system with a computing node of the plurality of computing nodes;

populate at least one processor of the plurality of computing nodes with one or more standardized executable application modules (SEAMs) and a workflow service, wherein the one or more SEAMs are unable to communicate directly with each other, a SEAM being a basic un-modifiable software object that is directed to complete specific tasks after being configured by a configuration file;

creating a configuration file to form a distributed diagnostic reasoner (DDR) in conjunction with the one or more SEAMs associated with the component, the DDR also comprising static data associated with a fault condition;

install the configuration file in the computing node for execution by the processor; and

initialize the one or more SEAMs, the configuration file and the workflow service, wherein the workflow service facilitates data flow between the one or more SEAMS and the static data associated with a fault condition resident in the configuration file.