JPS62260298A - Process monitor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a plant process monitoring device, and particularly relates to monitoring when an abnormal event occurs.

[Conventional technology]

FIG. 3 is a block diagram showing a conventional device.
ll is the process to be monitored, (2) is the calculation fi,
t41 is a display device such as a cathode ray tube display device! (hereinafter CR
(abbreviated as T), t51 is a keyboard (hereinafter abbreviated as KBD) for inputting information to a total of eight machines (2).

Various data representing the state of the process (1) are inputted from various sensors. A predetermined processing program is stored in the "2)", and the input data is processed by this processing program, collected, and displayed as numerical values, bar graphs, trend graphs, and figures. Each display screen (wax display screen disinfection is applied to each type of processed data)
It is updated accordingly (in the initial state, display screen information is created according to the initial data) and stored in, for example, an auxiliary storage device (not shown) in the computer (2).

When the operator inputs a screen selection signal to the computer (2) for selecting one of the display screen information from the KBD f51, the one display screen information selected by the signal is displayed on the CRT+41.

Alternatively, when performing interactive input, when the operator presses the "menu display" key, the characters indicating the names of all display screen information stored in the calculator (2) will appear on the CRT screen. +41 as a "menu", and the operator can select the "menu -
When you specify the name of the screen you want to display from 1 with the cursor on the CRT +41, the screen with the specified name will be displayed on the CWT.
Displayed on +41.

[Problem that the invention seeks to solve]

Conventional equipment is configured as described above, and when an operator detects that an abnormal event has occurred in the plant, he or she immediately displays the screen most closely related to the abnormal event on the CRT.
There is a problem when you want to display on +41. The operator must either switch all the display screens one after another to reach the desired screen, or rely on his or her intuition to select the screen. It is difficult to find out in time.

This invention was made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a process monitoring device that can quickly determine the optimal display screen for the abnormal event when an abnormal small breakage occurs. With the goal.

[Failure to solve the problem]

In this invention, when data representing an abnormal event of a predetermined degree occurs among the data representing the process situation manually inputted from the plant, the screen that should be urgently displayed is changed in response to the abnormal event that has occurred. The screen is automatically determined and the motto of this determined screen is memorized, so that when the operator inputs a specific signal, the memorized screen of this kind is displayed.

[Effect]

When an abnormal event occurs, a screen that should be displayed immediately is displayed immediately by a simple operation by the operator.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, the same reference numerals as in FIG. 3 indicate the same parts, and since they operate in the same way, repeated explanation will be omitted. (3
) is a knowledge base provided in the computer (2),
It is activated when data including information that a predetermined degree of abnormal event has occurred is detected among the %m data input to the total X machine + 21 from the process file, and the type and degree of the abnormal event is detected. Correspondingly, the calculator (2
) determines which display screen information to display as an emergency display screen among the various display screen information stored in the display screen. This decision is often handled by program control.

FIG. 2 is a diagram showing the contents of the knowledge base 13) of FIG. 1, and in the example shown in FIG.
・Rules of the form then (consisting of -.

The operation of this invention will be explained below. When no abnormal event occurs, the operation of the circuit of FIG. 1 is similar to the operation of the circuit of FIG. 3 described above.

Also, in the event of an abnormal event, the knowledge base]
The operation of the computer (2) except for 3) is the same as the operation of the circuit shown in Figure 3. Data including data indicating the occurrence of an abnormal event is input from the process (1) to the computer (2). Updates the display screen information stored in .

Next, the operation of the knowledge base (3) will be explained with reference to the example shown in FIG. In the example shown in Figure 2, “A system pressure>father” is defined as an abnormal event, and the process (1
), if the input data is "A system pressure -60", rule 1 will be applied and "A system pressure abnormal" will be detected.
It is determined that rule (9), ... is searched and the process (
If there is data "Valve A is closed" among the data input from 1), the rule nod will be applied, it will be determined that "A system abnormality", the rule (material) will be applied, and the display (aaa
, bbb, ccc) will be used as the emergency display screen.

The display screen information shown as displays (aaa, bbb, ace) in FIG. 2 is generally the same as in the case of FIG. information, a knowledge base (
In case 3), it is sufficient to simply select the display screen information as the display screen information for the emergency display, but depending on the case, it is also possible to newly generate display screen information instructed by the display (aaa, bbb, ccc).

When an operator notices the occurrence of an emergency event and presses a specific key to enter an emergency display command, the CRT
+41 shows (aaa, bbb, ccc) I
- Therefore, the selected display screen information is displayed.

Note that any conventionally known method may be used to notify the operator of the occurrence of an emergency event.

Further, although a cathode ray tube display device has been described as the display device (4), this may be a display using a light emitting diode, liquid crystal, or the like.

〔Effect of the invention〕

As described above, according to the present invention, a knowledge base is provided that automatically determines the display screen information that should be displayed in an emergency according to the type and degree of the abnormal event, so the operator can easily control the abnormal event that has occurred. The most appropriate display screen can be selected and displayed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing the contents of the knowledge base in FIG. 1, and FIG. 3 is a block diagram showing a conventional device. fi+ is process, (2) is total X iso, (3) is knowledge base, (4) is CRT, +53 is KHI). Note that the same reference numerals in the valley diagram indicate the same or equivalent parts.

Claims (1)

[Claims] Various types of data representing the state of the process are input from the plant, the input data is processed according to predetermined procedures, and various display screens representing the state of the process according to the information of the processing results are provided. A computer that generates and stores information, and selects one type of display screen information corresponding to the selection signal from among the above various display screen information according to the screen selection signal input by the operator. means for displaying on a display device, a display that is provided in the computer and should be displayed urgently in response to input data representing a predetermined degree of abnormality among various input data representing the state of the process; A process monitoring device comprising: a knowledge base for determining the type of screen information; and means for displaying the type of display screen information determined by the knowledge base on a display device in response to a specific signal input by an operator.