Unlock instant, AI-driven research and patent intelligence for your innovation.

Non-intrusive data analytics in a process control system

A process control system and data analysis technology, applied in general control systems, control/regulating systems, testing/monitoring control systems, etc., can solve problems such as expensive and time-consuming

Active Publication Date: 2015-02-11
FISHER-ROSEMOUNT SYST INC
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a plant operator with a "locked" or authenticated control system, making this modification poses a problem because in order to do so the plant operator must introduce a control system configuration change and then re-authenticate and lock the system again
This re-authentication process can be expensive and time-consuming

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-intrusive data analytics in a process control system
  • Non-intrusive data analytics in a process control system
  • Non-intrusive data analytics in a process control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 1 An exemplary industrial process plant 5 is shown in which a non-intrusive data analysis machine may be installed and used. The process plant 5 includes an online process control system 10 with a data historian 12 connected in the main plant communication network and connected to one or more host workstations or computers 13 (which may be any type of personal computer, workstation, etc.) to one or more process controllers ( figure 1 11A and 11B in ), each host workstation or computer 13 has a display screen 14 . Controllers 11A and 11B are also connected to field devices 15-27 via input / output (I / O) cards 28A, 28B and 29A, 29B, and are operable to use some or all of field devices 15-27 to implement batch One or more batch runs of the sub-process or a continuous process can be implemented. Controller 11, data historian 12, computer 13, I / O devices 28 and 29, and field devices 15-27 are communicatively coupled to a master control communication network 30 (also ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An on-line data analytics device can be installed in a process control system as a standalone device that operates in parallel with, but non-intrusively with respect to, the on-line control system to perform on-line analytics for a process without requiring the process control system to be reconfigured or recertified. The data analytics device includes a data analytics engine coupled to a logic engine that receives process data collected from the process control system in a non-intrusive manner. The logic engine operates to determine further process variable values not generated within the process control system and provides the collected process variable data and the further process variable values to the data analytics engine. The data analytics engine executes statistically based process models, such as batch models, stage models, and phase models, to produce a predicted process variable, such as an end of stage or end of batch quality variable for use in analyzing the operation of the on-line process.

Description

technical field [0001] This patent relates generally to systems and methods for analyzing process control system performance, and more particularly to systems and methods for non-intrusively performing on-line data analysis and modeling in batch and continuous processes. Background technique [0002] Process control systems such as those used in chemical, petroleum, or other processes typically include one or more process controllers and input / output (I / O) devices that communicate via an analog, digital, or combined analog / digital bus Communicatively coupled to at least one host computer or operator workstation and to one or more field devices. Field devices may include, for example, valves, valve positioners, switches, and transmitters (eg, temperature, pressure, and flow rate sensors) that perform in-process process control functions, such as opening or closing valves and measuring process control parameters. Process controllers receive signals indicative of process measu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02G05B19/418G06F19/00G06Q50/04
CPCG05B13/048G05B23/0208G05B2219/31357G05B2219/31472G05B19/41885Y02P90/02B29B7/728B29B7/283G05B19/41875G05B23/0243
Inventor C·J·沃里克T·L·布勒文斯R·B·海弗科斯特D·蒂勒
Owner FISHER-ROSEMOUNT SYST INC