Method for comparing and selecting process control apparatus

• US 7,349,872 B2
• Filed: 12/18/2001
• Issued: 03/25/2008
• Est. Priority Date: 12/18/2001
• Status: Expired due to Term

• Current Assignee: Micro Motion Incorporated (Emerson Electric Company)
• Original Assignee: Rosemount Incorporated (Emerson Electric Company)
• Inventors: Rogers, Steven B., Graber, William F., O'Banion, Thomas A., Coolidge, Nicole, Lemke, Joel R., Landsom, John O., Pomroy, James E., Wyatt, Tonya L.
• Primary Examiner(s): O'Connor; Gerald J.
• Application Number:
  US10/024,891
• Publication Number:
  US 20030115109A1
• Time in Patent Office: 2,289 Days
• Field of Search: 705/26, 705/27, 705/37, 707/1, 707/3, 707/4, 707/5, 707/6
• US Class Current: 705/27.1
• CPC Class Codes: G01F 25/10 of flowmeters
• CPC Class Codes: G05B 23/0272 Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user
• CPC Class Codes: G06Q 30/0641 Shopping interfaces

Abstract

A method for comparing and selecting process control apparatus is disclosed. The method employs software, executed on a stand-alone computer device, or accessible through the web, to retrieve data specific to a given process control environment, and calculate the performance characteristics of multiple types of process control equipment capable of meeting the demands of the application. The performance characteristics of each type can be provided in graphical form, at the same time, to enable a potential consumer to readily discern the advantages and disadvantages of each type of process control apparatus. In one embodiment, a purchase of the apparatus may then be made.

Claims

1. A method of configuring a process plant related to analyzing a plurality of process control instruments capable of use in a specific process control environment, comprising:

receiving, via a computer device comprising an input device and a central processing unit having a processor and a memory, and selected from one of a desktop computer, a laptop computer, a personal digital assistant, a networked computer terminal, and a server, process environment data related to the specific process control environment in which at least one of the plurality of process control instruments is potentially to be used;

storing the received process control environment data in a memory associated with the computer device in a manner that allows the process control environment data to be accessed at a later time;

receiving, via the computer device, device data indicating device-specific operating characteristics for each of the plurality of process control instruments and storing the received device data in a memory associated with the computer device in a manner that allows the device data to be accessed at a later time;

enabling a user to select a source for at least one of the device data and the process environment data, from which source the computer device receives the at least one of the device data and the process environment data, and wherein the selected source for the at least one of the process environment data and the device data is one of a user input, a memory, and a database;

storing, in a memory associated with the computer device, a modeling routine to model, using the device data, the operation of each of the plurality of process control instruments within the specific process control environment defined by the received process environment data;

using the computer device, the modeling routine, the received process environment data and the device data to model the operation of each of the plurality of process control instruments within the specific process control environment defined by the received process environment data;

determining, based on the modeled operation of each of the plurality of process control instruments, using the computer device, one or more performance characteristics for each of the plurality of process control instruments indicating the modeled performance of each of the plurality of process control instruments when used in the specific process control environment and storing the one or more performance characteristics in a memory associated with the computer device in a manner that allows the one or more performance characteristics to be accessed at a later time;

retrieving the one or more stored performance characteristics from the memory associated with the computer device, to allow display to a user of the one or more performance characteristics; and

displaying, via a display device, the one or more performance characteristics for each of the plurality of the process control instruments simultaneously via the computer device to enable a user to simultaneously view the one or more performance characteristics for each of the plurality of process control instruments in a manner that allows a user to choose, from among the plurality of process control instruments, the process control instrument best suited for the specific process control environment in which the process control instrument is to be used.

2. The method of claim 1, where the computer device is a web-enabled device.

3. The method of claim 1, wherein the plurality of process control instruments are each flow meters.

4. The method of claim 1, wherein at least one of the plurality of process control instruments is a Coriolis type of flow meter.

5. The method of claim 1, wherein at least one of the plurality of process control instruments is a vortex type of flow meter.

6. The method of claim 1, wherein at least one of the plurality of process control instruments is a magnetic type of flow meter.

7. The method of claim 1, wherein at least one of the plurality of process control instruments is a differential pressure type of flow meter.

8. The method of claim 1, wherein at least one of the plurality of process control instruments is a thermal mass type of flow meter.

9. The method of claim 1, wherein at least one of the plurality of process control instruments is an ultrasonic type of flow meter.

10. The method of claim 1, wherein receiving the process environment data related to the specific process control environment includes enabling a user to enter the process environment data through a keyboard of the computer device.

11. The method of claim 1, wherein determining the one or more performance characteristics includes calculating the one or more performance characteristics of each of the plurality of process control instruments over an entire range of operation of each process control instrument.

12. The method of claim 11, wherein displaying involves displaying performance characteristics of each of the plurality of process control instruments in a graphical manner.

13. The method of claim 12, wherein displaying provides a comparison between installed performance and performance at reference conditions.

14. The method of claim 1, wherein the process control instruments are flow meters and wherein displaying provides performance data as a function of flow rate from a maximum level to a minimum level.

15. The method of claim 1, wherein determining the one or more performance characteristics further includes calculating the size of the process control instrument needed to satisfy the process control application.

16. The method of claim 1, further including saving the received process environment data in a memory of the computer device.

17. The method of claim 16, further including assigning an electronic tag to the saved process environment data to facilitate later retrieval.

18. The method of claim 1, wherein receiving the process environment data includes receiving a selection of the plurality of process control instruments to be used in the analysis.

19. The method of claim 1, wherein the process control instruments are each flow meters, and wherein the determining the one or more performance characteristics includes calculating flow meter accuracy as a continuous function of flow rate.

20. The method of claim 1, wherein the process control instruments are each flow meters, and wherein determining the one or more performance characteristics includes calculating straight pipe requirements for each of the flow meters.

21. The method of claim 1, wherein the process control instruments are each flow meters, and wherein determining the one or more performance characteristics includes calculating fluid pressure losses for each of the flow meters.

22. The method of claim 21, wherein determining the one or more performance characteristics includes the calculation of pressure loss due to pipe fittings.

23. The method of claim 22, wherein the calculated performance characteristics are displayed graphically.

24. The method of claim 23, wherein the graphical display includes pictorial representations of pipe, pipe fittings, and flow meters.

25. The method of claim 1, wherein determining the one or more performance characteristics involves calculating installed costs associated with the plurality of process control instruments.