Method for automatically monitoring at least one component of a physical system

• US 9,519,565 B2
• Filed: 11/21/2011
• Issued: 12/13/2016
• Est. Priority Date: 12/17/2010
• Status: Active Grant

• Current Assignee: Rolls-Royce Deutschland Limited & Company KG (Rolls-Royce Holdings Plc)
• Original Assignee: Rolls-Royce Deutschland Limited & Company KG (Rolls-Royce Holdings Plc)
• Inventors: Hainzl, Stefan
• Primary Examiner(s): Barbee, Manuel L
• Assistant Examiner(s): Bishop, Jeremy
• Application Number:
  US13/992,572
• Publication Number:
  US 20130332779A1
• Time in Patent Office: 1,849 Days
• Field of Search: 702/35, 702/57, 702/85, 702183-185
• US Class Current: 1/1
• CPC Class Codes: 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
• CPC Class Codes: 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
• CPC Class Codes: G06F 11/3466 Performance evaluation by tracing or monitoring
• CPC Class Codes: G07C 3/08 Registering or indicating the production of the machine either with or without registering working or idle time
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005
• CPC Class Codes: G07C 5/085 using electronic data carriers

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

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.

2. 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.

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

4. 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.

5. 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.

6. 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.