Method and system for simulation-based troubleshooting and fault verification in operator-controlled complex systems
First Claim
1. A method of troubleshooting to determine a cause of anomalous behavior observed during operation of a complex system, comprising:
- providing an operator'"'"'s station that permits an operator to operate a simulation of the complex system to initial control conditions of the complex system that existed when the anomalous behavior was observed, and to input fault symptoms associated with the anomalous behavior;
using the fault symptoms to compile candidate fault scenarios known to be associated with the operation of the complex system; and
inserting at least one of the candidate fault scenarios into the simulation operating under the initial control conditions to determine whether the fault symptoms are reproduced.
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Accused Products
Abstract
Troubleshooting a cause of anomalous behavior observed during operation of a complex system is enabled by a simulation system that permits an operator to operate a simulation of the complex system to initial control conditions in which the anomalous behavior was observed, and suspend the simulation to input fault symptoms observed during the anomalous behavior. The system selects fault scenarios using the input fault symptoms, injects a selected fault scenario into the simulation, and compares a behavior of the fault-inserted simulation to a behavior of a fault-free simulation operating under the initial control conditions to extract fault symptoms, in order to determine whether the anomalous behavior is reproduced by any inserted fault scenario.
26 Citations
21 Claims
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1. A method of troubleshooting to determine a cause of anomalous behavior observed during operation of a complex system, comprising:
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providing an operator'"'"'s station that permits an operator to operate a simulation of the complex system to initial control conditions of the complex system that existed when the anomalous behavior was observed, and to input fault symptoms associated with the anomalous behavior;
using the fault symptoms to compile candidate fault scenarios known to be associated with the operation of the complex system; and
inserting at least one of the candidate fault scenarios into the simulation operating under the initial control conditions to determine whether the fault symptoms are reproduced. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for simulation-based troubleshooting of a complex system to isolate a cause of anomalous behavior observed during operation of the complex system, comprising:
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a simulation of the complex system with a virtual complex system (VCS) control station that permits an operator to operate the VCS to an initial control conditions that simulates an operating state of the real complex system when the anomalous behavior was observed; and
a graphical user interface associated with the VCS control station that permits the operator to enter a fault symptom input mode, and to input fault symptoms observed during the anomalous behavior; and
a fault resolver that uses the input fault symptoms to select at least one candidate fault scenario that may have caused the anomalous behavior. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of troubleshooting to determine a cause of an anomalous behavior observed during operation of a complex system, comprising:
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providing a simulation of the complex system including an operator'"'"'s control station that permits an operator to operate the simulation to, initial control conditions that existed when the anomalous behavior was observed;
accepting inputs from the operator at the operator'"'"'s control station representing fault symptoms associated with the observed anomalous behavior; and
using the input fault symptoms to select at least one fault scenario that may have been responsible for the observed anomalous behavior. - View Dependent Claims (18, 19, 20, 21)
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Specification