# US 9,519,565 B2 · Method for automatically monitoring at least one component of a physical system

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- Number: US 9,519,565 B2
- Document ID: US9519565B2
- Status: Granted
- Kind: B2
- Application number: 13/992,572
- Filed: 2011-11-21
- Published: 2013-12-12
- Granted: 2016-12-13
- Earliest claimed: 2010-12-17
- Assignees: Rolls-Royce Deutschland Ltd & Co KG
- Applicants: Stefan Hainzl
- Inventors: Stefan Hainzl
- Web page: https://patentgrep.com/patent/US9519565B2

## CPC

- G06F 11/3466: {Performance evaluation by tracing or monitoring}
- G05B 23/0235: {based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold}
- G05B 23/0237: {based on parallel systems, e.g. comparing signals produced at the same time by same type systems and detect faulty ones by noticing differences among their responses}
- G07C 3/08: Registering or indicating the production of the machine either with or without registering working or idle time
- G07C 5/0808: {Diagnosing performance data (testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005)}
- G07C 5/085: {using electronic data carriers}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)
- G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE

## Abstract

A method for automatic monitoring of at least one component of a physical system, includes checking data of a data record for errors caused by a preceding data processing, checking the data in the physical context of the at least one sensor for errors resulting from infringements of assumptions of physical and/or system-related factors in elements of the measurement chain, the context of the component for errors resulting from infringements of the physical and/or system-related factors of the component, and—checking the individually asserted errors against one another and then either rejecting the error or outputting the error as an error message with reference to the error source.

## Claims

### Claim 1

A method for automatic monitoring of at least one component of a physical system,
where at least one sensor automatically monitors a characteristic of a component of a physical system and emits an electrical signal corresponding to a value of the characteristic via a measurement chain connected to a data reader of a computer system, which electrical signal is read by the data reader at a computer system, processed by the computer system and then output by the computer system to be saved as a data file in a data record of the computer system,
where subsequently in a first checking step the computer system checks the data file of the data record for first errors caused by the preceding processing by the computer system,
where subsequently in a second checking step the computer system checks the data file of the data record for second errors that result from problems with the at least one sensor and the measurement chain,
where subsequently in a third checking step the computer system checks the data file of the data record for third errors that result from problems with the component, and
where subsequently in a fourth checking step the first, second and third errors are checked against one another and known data for possible errors to isolate an error source and are either rejected if the isolated error source is not deemed sensible in light of the first, second and third errors or known data or output as an error message with reference to the isolated error source;
wherein the computer system automatically takes corrective action to correct the isolated error source.

### Claim 2 (depends on 1)

The method in accordance with claim 1, where after the second checking step in a further checking step, where the at least one sensor includes a plurality of equivalent sensors each measuring the characteristic of the component of the physical system, the data file of the data record is checked for comparative errors between the plurality of equivalent sensors, which comparative errors result from problems with at least one of the plurality of equivalent sensors.

### Claim 3 (depends on 1)

The method in accordance with claim 1, wherein data corresponding to the first, second and third errors is automatically stored in the data record.

### Claim 4 (depends on 1)

The method in accordance with claim 1, wherein the output of the error message includes at least one automatic generation of a proposal for error detection.

### Claim 5 (depends on 1)

The method in accordance with claim 1, wherein the physical system is a pump system and the component is a pump of the pump system, and the at least one sensor includes at least one chosen from a rotational speed sensor sensing a rotational speed of the pump, an inlet pressure sensor sensing an inlet pressure of the pump, and an outlet pressure sensor sensing an outlet pressure of the pump.

### Claim 6 (depends on 5)

The method in accordance with claim 5, wherein the at least one sensor includes each of a rotational speed sensor sensing a rotational speed of the pump, an inlet pressure sensor sensing an inlet pressure of the pump, and an outlet pressure sensor sensing an outlet pressure of the pump.