Method, system, and device for monitoring operations of a system asset

• US 9,958,863 B2
• Filed: 10/31/2012
• Issued: 05/01/2018
• Est. Priority Date: 10/31/2012
• Status: Active Grant

• Current Assignee: Baker Hughes Holdings LLC (Baker Hughes Company)
• Original Assignee: General Electric Company
• Inventors: Williams, Scott Terrell
• Primary Examiner(s): MacKall, Larry T
• Application Number:
  US13/665,066
• Publication Number:
  US 20140122800A1
• Time in Patent Office: 2,008 Days
• Field of Search: 711117
• CPC Class Codes: G05B 23/0221 Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods

Abstract

A device for use in monitoring operation of a system asset includes an interface for receiving sensor data representative of an operating condition of the system asset, a memory device for storing the sensor data, and a processor coupled to the interface and to the memory device. The processor is configured to create a hierarchy of sensor data within the memory device, wherein the hierarchy comprises a first tier and a second tier, store a first level of the sensor data in the first tier, and store a second level of the sensor data in the second tier.

Claims

1. A device for use in monitoring operation of a system asset, the device comprising:

an interface for receiving sensor data representative of an operating condition of the system asset being monitored, wherein the device is configured to generate real-time samples of the sensor data from the interface by digitizing the sensor data, wherein each sample includes a status of the sensor data, wherein the status of the sensor data includes an indication of whether the sample is valid or invalid or an indication that the system asset being monitored is in an alarm state;

a memory device for storing the samples; and

a processor coupled to the interface and to the memory device, the processor configured to;

create a hierarchy of the samples within the memory device, wherein the hierarchy includes a first tier, a second tier, and a third tier;

store a first level of the samples in the first tier to allow for access of the first level of the samples by the processor;

store a second level of the samples in the second tier to allow for access of the second level of the samples by the processor; and

store a third level of the samples in the third tier to allow for access of the third level of the samples by the processor, wherein the second tier and the third tier are multiples of each other.

2. The device of claim 1, wherein the processor is further configured to store the first level of the samples in real-time.

3. The device of claim 2, wherein each sample includes at least a value of the sensor data and a timestamp indicative of a time that the sensor data was received.

4. The device of claim 2, wherein the processor is further configured to generate a summary of the samples received during a predetermined first period of time.

5. The device of claim 4, wherein the processor is further configured to store the summary in the second level of the samples.

6. The device of claim 4, wherein the processor is configured to generate the summary to include:

a status of the samples that reflects status events occurring within a time period associated with the summary, wherein the status events are based on the indication of whether the sample is valid or invalid or the indication that the system asset being monitored is in an alarm state; and

at least one statistical abstract of the samples received during the first period of time.

7. The device of claim 1, wherein the memory device comprises a reference database, wherein the processor is configured to:

store reference data in the reference database, wherein the reference data is based on at least one of the following;

(1) predicted performance of the system asset;

(2) measurement data for the system asset being monitored when the system asset was newly installed or functioning at an optimal performance; and

(3) measurement data for the system asset selected by a user; and

determine the status of at least one of the sensor data and the system asset being monitored using the reference data.

8. A system for use in monitoring operation of a system asset, the system comprising:

a data acquisition device configured to generate real-time samples of sensor data from an interface by digitizing the sensor data, wherein each sample includes a status of the sensor data, wherein the status of the sensor data includes an indication of whether the sample is valid or invalid or an indication that the system asset being monitored is in an alarm state, wherein the data acquisition device comprises;

the interface for receiving the sensor data representative of an operating condition of the system asset being monitored;

a memory device for storing the samples;

a processor coupled to the interface and to the memory device, the processor configured to;

create a hierarchy of the samples within the memory device, wherein the hierarchy includes a first tier, a second tier, and a third tier;

store a first level of the samples in the first tier to allow for access of the first level of the samples by the processor;

store a second level of the samples in the second tier to allow for access of the second level of the samples by the processor; and

store a third level of the samples in the third tier to allow for access of the third level of the samples by the processor, wherein the second tier and the third tier are multiples of each other; and

a display device coupled to the data acquisition device, the display device configured to display data representative of the second level of the samples.

9. The system of claim 8, wherein the processor is further configured to store the first level of the samples in real-time.

10. The system of claim 9, wherein each sample includes at least a value of the sensor data and a timestamp indicative of a time that the sensor data was received.

11. The system of claim 10, wherein the processor is further configured to generate a summary of the samples received during a predetermined first period of time.

12. The system of claim 11, wherein the processor is further configured to store the summary in the second level of the samples.

13. The system of claim 11, wherein the processor is configured to generate the summary to include;

a status of the samples that reflects status events occurring within a time period associated with the summary, wherein the status events are based on the indication of whether the sample is valid or invalid or the indication that the system asset being monitored is in an alarm state; and

at least one statistical abstract of the samples received during the first period of time.

14. The system of claim 11, wherein the summary is a first summary, the processor is further configured to generate a second summary of the samples associated with the first summary during a second period of time that is longer than the first period of time.

15. A method of monitoring a system asset, the method comprising:

generating real-time samples of sensor data by digitizing the sensor data via a data acquisition device comprising a processor, wherein each sample includes a status of the sensor data, wherein the status of the sensor data includes an indication of whether the sample is valid or invalid or an indication that the system asset being monitored is in an alarm state;

creating a hierarchy of the samples within a memory device by the processor, wherein the hierarchy includes a first tier, a second tier, and a third tier;

receiving the samples representative of an operating condition of the system asset being monitored by the processor;

storing a first level of the samples in the first tier to allow for access of the first level of the samples by the processor;

storing a second level of the samples in the second tier to allow for access of the second level of the samples by the processor;

store a third level of the samples in the third tier to allow for access of the third level of the samples by the processor, wherein the second tier and the third tier are multiples of each other; and

displaying data representative of the second level of the samples on a display device.

16. The method of claim 15, wherein each sample includes at least a value of the sensor data and a timestamp indicative of a time that the sensor data was received.

17. The method of claim 16, further comprising generating a summary of the samples received during a predetermined first period of time.

18. The method of claim 17, wherein storing a second level of the samples in the second tier further comprises storing the summary in the second level of the samples.

19. The method of claim 17, wherein generating the summary comprises including, within the summary, a status of the samples that reflects status events occurring within a time period associated with the summary, wherein the status events are based on the indication of whether the sample is valid or invalid or the indication that the system asset being monitored is in an alarm state, and at least one statistical abstract of the samples received during the first period of time.