Plant monitoring apparatus and plant monitoring method

• US 20070172018A1
• Filed: 01/12/2007
• Published: 07/26/2007
• Est. Priority Date: 01/17/2006
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Takagi, Yasuo, Murayama, Dai, Nakai, Akimasa, Iino, Yutaka, Yamasaki, Masuo
• Granted Patent: US 7,652,567 B2
• Time in Patent Office: Days
• US Class Current: 376/245
• CPC Class Codes: G05B 19/409 characterised by using manual data input [MDI] or by using control panel, e.g. controlling functions with the panel; characterised by control panel details or by setting parameters G05B19/408, G05B19/4093 take precedence
• CPC Class Codes: G05B 2219/31438 Priority, queue of alarms
• CPC Class Codes: G05B 2219/31439 Alarms can be warning, alert or fault
• CPC Class Codes: G05B 2219/31469 Graphical display of process as function of detected alarm signals
• CPC Class Codes: G05B 23/0272 Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user

Abstract

A plant monitoring apparatus includes: a process measuring unit; a warning determining unit; a warning selecting unit; a display processing unit; a display/setting unit; a warning criteria setting unit; a warning criteria database; and a warning criteria supplying unit. The warning determining unit determines a plurality of warning data to be issued as warnings from a large amount of process data collected by the process measuring unit on the basis of a predetermined determination criterion. The warning selecting unit compares the plurality of warning data with one or more classification criteria supplied by the warning criteria supplying unit so as to classify the plurality of warning data. Warnings are classified into categories according to the classification and the classified warnings are displayed on the display/setting unit.

Claims

1. A plant monitoring apparatus comprising:

a process measuring unit configured to store data of a plant;

a warning determining unit operatively connected to a process measuring unit and configured to determine a plurality of warning data to be issued as warnings from a large amount of process data collected by the process measuring unit on the basis of a preliminarily set criterion;

a warning selecting unit operatively connected to the warning determining unit and configured to compare the plurality of warning data with one or more classification criteria;

a display/setting unit operatively connected to the warning selecting unit and configured to display the warning data to an operator through a display processing unit;

a warning criteria database operatively connected to the display/setting unit and configured to access the selected data through a warning criteria setting unit; and

a warning criteria supplying unit operatively connected to the warning criteria database and configured to load a warning criteria from the warning criteria database to the warning selecting unit,

wherein the warning selecting unit compares the plurality of warning data with one or more classification criteria supplied by the warning criteria supplying unit so as to classify the plurality of warning data, and the warnings are classified into categories according to the classification and the classified warnings are displayed on the display/setting unit.

2. The apparatus according to claim 1, wherein the classified warnings are displayed on different screens for each classification criterion.

3. The apparatus according to claim 2, wherein the different screens are hierarchical screens.

4. The apparatus according to claim 1, wherein the display/setting unit writes data in the warning criteria database through the warning criteria setting unit, and a screen displayed thereon allows specification of selected ranges of the warnings displayed according to one or more classification criteria.

5. The apparatus according to claim 4, wherein the selected ranges include a range written in the warning criteria database through the warning criteria setting unit and a range predetermined according to the classification criteria.

6. The apparatus according to claim 4, wherein the screen allowing the specification of the selected ranges of the warnings shows the number of warnings to be displayed when a currently specified range is selected.

7. The apparatus according to claim 4, wherein the selected ranges of the warnings are displayed on a screen.

8. A plant monitoring method comprising the steps of:

collecting and storing plant data obtained from a plant;

comparing the stored plant data with warning set criteria and determining a plurality of warning data to be issued as warnings on the basis of a preliminarily set criterion;

transmitting and selecting data determined to be warned;

attaching the warning data to the selected data; and

classifying the warnings into categories according to the classification and displaying the classified warnings.