Back to results
US 12,429,838 B2Granted
Building automation system and method for managing causal chain for fault detection and diagnostics
AssigneeSiemens Industry, Inc.
InventorsHeinrich Helmut Degen, Christof J. Budnik, Gregory Conte, Andrew Lintereur, Seth Weber
Life of this patent
Estimating the term…
Abstract
There is disclosed a building automation system, and a method thereof, for managing causal chain. Facility data of the building automation system is collected. One or more suggested causes and one or more causal chains are generated based on the facility data. One or more responsive actions are determined based on the suggested cause or causes, the causal chain or chains, and a cause-action mapping. A particular causal chain is provided based on the at least one responsive action and manager information.
Claims24
A building automation system for managing causal chain comprising:
- an input component collecting facility data of the building automation system;
- a processor generating at least one causal chain based on the facility data, the processor further identifies at least one suggested cause of the at least one causal chain and determines at least one responsive action associated with a root cause based on the at least one causal chain and a cause-action mapping, the at least one suggested cause corresponding,
- wherein the at least one causal chain including a causal factor r associated with a root cause, causal factor 0 and causal factor 1 preceding the causal factor r, and causal factor r+f subsequent to the causal factor r, the causal factor 0 being associated with a pre-trigger operating condition, the causal factor 1 being associated with a trigger condition, and the causal factor r+f associated with a fault subsequent to the trigger,
- wherein each of the causal factor 0, the causal factor 1, the causal factorr, and the causal factor r+f is correlated with a corresponding event and the at least one suggested cause corresponds to the causal factor r associated with the root cause,
- wherein the processor identifies the at least one suggested cause by grouping faults per asset based on asset information, data point values, analytic results, and asset topology of the facility data;
- identifying at least one causal chain based on the faults per asset, the asset topology, and rule topology of the facility data;
- and identifying the at least one suggested cause based on the at least one causal chain and the rule topology, and
- wherein the at least one responsive action associated with the root cause and the building automation system establishing a trace between the root cause and the responsive actions;
- and
- an output component generates a work order corresponding to one or more suggested responsive actions associated with the root cause of the at least one causal chain, the output component further tracking one or more causal factors of the at least one causal chain based on the trace between the root cause and the responsive actions.
7 more elements
A method of a building automation system for managing causal chain, the method comprising:
- collecting facility data of the building automation system;
- generating at least one causal chain based on the facility data, the at least one causal chain including a causal factor r associated with a root cause, causal factor 0 and causal factor 1 preceding the causal factorr, and causal factor r+f subsequent to the causal factor r, the causal factor 0 being associated with a pre-trigger operating condition, the causal factor 1 being associated with a trigger condition, and the causal factor r+f associated with a fault subsequent to the trigger, wherein each of the causal factor 0, the causal factor 1, the causal factor r, and the causal factor r+f is correlated with a corresponding event;
- identifying at least one suggested cause of the at least one causal chain, the at least one suggested cause corresponding to the causal factor r associated with the root cause, identifying the at least one suggested cause comprising:
- grouping faults per asset based on asset information, data point values, analytic results, and asset topology of the facility data;
- identifying the at least one causal chain based on the faults per asset, the asset topology, and rule topology of the facility data;
- and
- identifying the at least one suggested cause based on the at least one causal chain and the rule topology;
- determining at least one responsive action associated with the root cause based on the at least one causal chain and a cause-action mapping, the at least one responsive action associated with the root cause and the building automation system establishing a trace between the root cause and the responsive actions;
- and
- generating a work order corresponding to one or more suggested responsive actions associated with the root cause of the at least one causal chain, wherein generating the work order includes tracking one or more causal factors of the at least one causal chain based on the trace between the root cause and the responsive actions.
7 more elements
Dependencies are inferred from the claim text.