JPS59109914A - Plant monitoring device - Google Patents

Abstract

PURPOSE:To reduce the labor of an operator by automating the selection of screens in the normal operation of a plant and changing screens periodically in specified order. CONSTITUTION:When the request key 7 on a control board 5 is pressed for automatic mode and it is judged that pulses are inputted at specific intervals by the timer of a plant computer 3, a screen displayed on a picture display device 6 is cleared and a previously set program is started to display the result of output processing 3e on the device 5 in order. When no pulse is inputted from the timer, the screen on the device 6 is not updated. Further, plant data from a detector 1 is compared with a set value; when the data becomes larger than the set value, the screen where the data is displayed is selected and activated to display the processing result on the device 6, finding abnormality of the plant in its early stage.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plant monitoring device that displays information on the operating status of a plant.

Conventionally, there has been a device of this type as shown in Figure 1.

The state quantity of the plant is measured by the detector 1, and the cable 2
The measured data is input to the plant computer 3 via the plant computer 3. The output information of the plant computer 5 is
The image is output or displayed on an image display device, that is, a CRT display 6, which is attached to the control panel 5 via the cable 4, as shown in FIG. 2, by selecting the screen of the request key I.

The output of the detector 1, that is, the state quantity of the plant, input to the plant computer 3 is stored in the plant data file 3b after input processing 3a. On the other hand, when the operator presses the request key 7 having the key arrangement shown in FIG. 3, a screen is selected (process 3C).

Information on which screen is to be output is input to the plant computer 3 via the cable 9, the screen is selected based on that information, the screen creation program is started (3d), and the plant computer 3 displayed on the screen is Data is input from a data file, a specified screen is created, and output processing 3e) is performed to display it on the image display device 6 in the control panel 5 via the cable 4, as shown in FIG.

Conventional plant monitoring devices are configured as described above. 1. Operators must select the screen they want to view using the request key, and in order to continuously view the status of each part of the process, press the request key. - Since the keys must be pressed in order and the operator must also select which screen to look at in the event of an abnormality, there is a possibility that small abnormalities may be overlooked. , there were drawbacks such as delays in discovery.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above.During normal operation, the screen selection is automated and the screens change periodically according to a set order. This allows operators to continuously monitor the plant, and in the event of an abnormality, screens containing data that exceed the set rate of change or limit value are automatically selected and displayed, allowing operators to see the appropriate information. The purpose of this project is to provide a plant monitoring device that can provide accurate information.

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

(3) The configuration of the present invention is the same as that shown in FIG. 1 except for the processing within the process computer 3.

The processing in the plant computer 3 is shown in the flowchart shown in Figure 4.
The request keys for the image display device 6 are arranged as shown in the chart and shown in FIG. Manual on request key 7 in FIG.

When the automatic selection button 10 is pressed, data is input from the cable 9 to the input processing 3a. If an automatic signal is input at this time (judgment 3f), if the timer 12 of the plant computer 3 determines that pulses that occur at regular intervals are input (judgment 3g), the current display Process 3h) to clear the internal screen, and then start a screen output program that has been set (in order) in advance and process 3i) to display it on the image display device 6 through the cable 4 as shown in FIG. Conversely, if the determination 3g is NO, that is, no pulse is input, the screen on the image display device 6 is not updated. In addition, in order to prevent abnormalities in the plant, the plant data is compared with the set value (process 3j), and if the data is thicker than the set value (judgment 3k), the screen where that data is displayed is Select Process 31) and start the screen (Process 3m)
, the processing results are displayed on the image display device 6. This makes it easier to detect plant abnormalities early on, and operators only need to carefully look at the displayed screen.

However, the screen display during this abnormality is displayed with priority over the periodic screen display.

Although the above embodiments show examples of normal and abnormal conditions, it may also be the case when the plant is started up or stopped. By determining the screen to be displayed depending on the amount, the same effects as in the above embodiment can be achieved.

As described above, according to this invention, operators can grasp all changes in the plant by simply concentrating on the display screen, rather than paying attention to all the many instruments on the panel. This has the effect of reducing the labor of

[Brief explanation of drawings]

Fig. 1 is a block diagram of a conventional plant monitoring device, Fig. 2 is a diagram showing a display screen of the device shown in Fig. 1, and Fig. 3 is a diagram showing the display screen of the device shown in Fig. 1.
4 is a process flow diagram of a plant monitoring device showing an embodiment of the present invention; FIG. 5 is a diagram of a display screen of the device shown in FIG. 4; FIG. 6 is a layout diagram of request keys of the device shown in FIG. 4. 1...Detector, 3...Plant computer, 5
... Control panel, 6... Image display device, 7... Request key. In addition, in the figures, the same reference numerals indicate the same parts. Agent Makoto Kuzuno (and 1 other person) 2nd Plot 3rd Field 4th Figure CR A-J-4

Claims (1)

[Claims] In a plant monitoring device that processes data detected from each part of a plant using a predetermined program and displays the processing results in a predetermined display format on an image display device, the normal operating state of the plant is displayed at a predetermined period. The present invention is characterized by comprising a computer that executes normal display processing for displaying an abnormal operating state of the plant and abnormal display processing for displaying an abnormal operating state of the plant, and displays the processing results in a predetermined display format on the image display device. Plant monitoring equipment.