Plant monitoring apparatus and plant monitoring method

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.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

In the accompanying drawings:

FIG. 1 is a conceptual diagram of a plant monitoring apparatus according to an embodiment of the present invention;

FIG. 2 is a flowchart of a monitoring operation performed by the plant monitoring apparatus according to the embodiment of the present invention;

FIG. 3 is a dataflow diagram of monitoring operation associated with the number of warnings performed by the plant monitoring apparatus according to the embodiment of the present invention;

FIG. 4A is a conceptual diagram showing processing of data employed by the plant monitoring apparatus according to the embodiment of the present invention, and FIG. 4B is an example of a screen configuration employed by the plant monitoring apparatus according to the embodiment of the present invention;

FIG. 5 is an example of a screen displayed on a display/setting unit of the plant monitoring apparatus according to the embodiment of the preset invention; and

FIG. 6 is a conceptual diagram of a known plant monitoring apparatus.

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; anda 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; andclassifying the warnings into categories according to the classification and displaying the classified warnings.