Process Data Collection for Process Plant Diagnostics Development

• US 20080065705A1
• Filed: 09/12/2006
• Published: 03/13/2008
• Est. Priority Date: 09/12/2006
• Status: Abandoned Application

• Current Assignee: Fisher-Rosemount Systems Incorporated (Emerson Electric Company)
• Original Assignee: Fisher-Rosemount Systems Incorporated (Emerson Electric Company)
• Inventors: Miller, John P.
• Application Number:
  US11/531,095
• Publication Number:
  US 20080065705A1
• Time in Patent Office: Days
• US Class Current: 707/204
• CPC Class Codes: G05B 21/02 electric
• CPC Class Codes: G05B 23/0216 Human interface functionality, e.g. monitoring system providing help to the user in the selection of tests or in its configuration
• 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
• CPC Class Codes: G05B 23/0264 Control of logging system, e.g. decision on which data to store; time-stamping measurements

Abstract

A number of techniques are disclosed to facilitate process data collection and monitoring. The techniques may involve and support the selection of process parameters to be monitored, including scanning techniques for automated identification of such parameters. The techniques may also involve the management of data storage and archiving operations to facilitate continued process data collection arising from an on-line process. In these and other ways, the disclosed techniques are well-suited for process data collection and monitoring in connection with diagnostic elements of a process control system and other contexts involving process status indicators and the underlying process variables.

Claims

1. A method for data collection of a plurality of process parameters indicative of operation of a process, the method comprising the steps of:

generating a user interface to indicate selected process parameters of the plurality of process parameters for which process data is to be collected;

storing the process data in accordance with the selected process parameters; and

,

archiving the stored process data in connection with continued collection of the process data due to the operation of the process.

2. The method of claim 1, wherein the archiving step is performed automatically in response to a trigger event.

3. The method of claim 2, wherein the trigger event is based on a data storage threshold.

4. The method of claim 3, wherein the data storage threshold is based on an external media storage capacity.

5. The method of claim 1, wherein the generating step comprises the step of facilitating user selection of one or more of the plurality of process parameters from the plurality of process parameters for the data collection.

6. The method of claim 5, wherein the selected process parameters comprise a number of input/output parameters associated with one or more abnormal operation monitoring units of a process monitoring system configured to detect abnormal operation of the process.

7. The method of claim 5, wherein the facilitating step comprises the step of implementing an automated procedure to scan a process hierarchy to support the selection from the plurality of process parameters.

8. The method of claim 1, further comprising the step of purging the stored process data from a database after the archiving step has been performed.

9. The method of claim 1, further comprising the step of overwriting the stored process data stored in a database after the archiving step has been performed.

10. The method of claim 1, further comprising the step of accessing the stored process data for rendering a user interface display of the stored process data.

11. The method of claim 1, further comprising the step of generating a further user interface to monitor implementation of a diagnostic element configured to evaluate the operation of the process.

12. The method of claim 11, wherein the selected process parameters comprise one or more input parameters of the diagnostic element.

13. The method of claim 11, wherein the selected process parameters comprise one or more status indicators determined by the diagnostic element.

14. A data collection system for a process having a plurality of process parameters indicative of operation of the process, the data collection system comprising:

a computer-readable memory;

a processor;

a data capture application stored on the computer-readable memory and adapted for execution on the processor to select and monitor process parameters from the plurality of process parameters for which process data is to be collected; and

a database in which the collected process data for the selected process parameters is stored;

wherein the selected process parameters comprise a process variable and a status indicator based on the process variable, and wherein the data capture application is further adapted to manage the database to facilitate further collection of the process data for the process variable and the status indicator resulting from continued operation of the process.

15. The data collection system of claim 14, wherein the data capture application is further adapted to archive the collected process data to facilitate the further collection of the process data.

16. The data collection system of claim 15, wherein the collected process data is automatically archived based on a trigger event.

17. The data collection system of claim 14, wherein the data capture application is further adapted to generate a user interface to monitor implementation of a diagnostic element responsive to the process variable to determine the status indicator.

18. The data collection system of claim 17, wherein the data capture application is further adapted to generate a further user interface to facilitate selection of further process variables or further status indicators associated with the diagnostic element.

19. The data collection system of claim 14, wherein the selected process parameters comprise a plurality of process variables and a plurality of status indicators, wherein the process variable is one of the plurality of process variables, and wherein the status indicator is one of the plurality of status indicators.

20. A method of testing an abnormal operation monitoring unit for a process having a plurality of process parameters indicative of operation of the process, the method comprising the steps of:

selecting input/output parameters of the abnormal operation monitoring unit from the plurality of process parameters;

capturing process data for the selected input/output parameters generated during the operation of the process;

storing the captured process data; and

,

archiving the stored process data in connection with continued generation of the process data due to the operation of the process.

21. The method of claim 20, further comprising the step of generating a user interface to facilitate monitoring of the captured process data via a user interface.

22. The method of claim 20, wherein the selected input/output parameters comprise a plurality of process variables inputs to the abnormal operation monitoring unit and a plurality of status indicators outputs of the abnormal operation monitoring unit.