JPH0697479B2 - Plant monitoring equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention processes a process input device for inputting various process signals from a plant and a process signal input from the process input device. A display processing device that creates and processes a plurality of screens necessary for monitoring, and a display device and a screen selector, respectively, and selects any one screen from the plurality of screens created by the display processing device. The present invention relates to a plant monitoring device including a plurality of monitoring rooms that are selected by a vessel and displayed on the display device.

(Prior Art) FIG. 4 shows a conventional example of a plant monitoring device for a large-scale industrial plant. A process signal P detected by a plant sensor arranged in a plant (not shown) is input to the process computer 2 via the process input device 1.

On the other hand, the state of the plant is, for example, the monitoring room 3a provided at the site and the central monitoring room provided at a point away from the site.
It may be monitored from two locations, 3b.

CRT display devices 4a and 4b and screen selection switch 5 are installed in the monitoring rooms 3a and 3b.
a and 5b are provided. The operator of the monitoring rooms 3a and 3b designates the screen number with the screen selection switches 5a and 5b. The process calculator 2 which is a display processing device stores each system diagram of the plant and layout information when the process amount of each part in each system is displayed on the CRT screen by assigning screen numbers. As a result, when the screen number is designated by the screen switch 5a or 5b, the process computer 2 transfers the predetermined process amount obtained from the corresponding system diagram and the process signal P to the predetermined ray-rate CRT display device 4a or 4b. indicate. The operator of the surveillance room can CR any screen like this
The plant status is monitored by displaying on the T display device.

By the way, if an abnormality such as an accident occurs in the plant,
The operators in the monitoring rooms 3a and 3b must cooperate with each other in the monitoring work to clarify the cause of the abnormality. For this reason,
In the past, both operators used a telephone that connected monitoring rooms 3a and 3b.
They checked the systems to be monitored in 6a, displayed the same screen on the CRT display device, and exchanged information.

(Problems to be solved by the invention) However, confirmation of the display screen by telephone is tedious and time-consuming, and there is a case where both operators see different screens and their perceptions are different due to contact failure. Occurs. Therefore, there is a problem that the response when an abnormality occurs is delayed.

An object of the present invention is to solve the above problems and to provide a plant monitoring apparatus that enables an operator to grasp a plant state and to make a quick response without causing a difference in recognition.

[Structure of the Invention] (Means for Solving Problems) Therefore, according to the present invention, the display device of each monitoring room is displayed in another monitoring room together with a predetermined display screen designated by the operator. While the screen number is always displayed, the operator specifies the display device of another monitoring room by the input means of the monitoring room, so that the same screen as the display screen displayed on the specified display device can be monitored. It is designed to be displayed on the display device in the room.

(Operation) As a result, the operator can see the same display screen as the operator in the other monitoring room without having to confirm it by telephone with the operator.

(Example) Hereinafter, the Example of this invention is described in detail.

FIG. 1 is a block configuration diagram of a plant monitoring apparatus according to an embodiment of the present invention. In the figure, the same symbols as in FIG. 4 indicate the same parts. A large number of plant sensors are arranged in a plant (not shown), and process signals P, which are detection signals thereof, are input to the process input device 1. The process input device 1 converts each input process signal P into digital information, and a process computer 2 which is a display processing device.
Output to.

In the process computer 2, the sensor signal input unit 21 inputs the digital information indicating the plant state, and this information is stored in the storage unit 22 as process data PD. The storage unit 22 extracts fixed data such as information for displaying each system diagram of the plant on the CRT screen and layout information on the screen when displaying each process amount, and which of the process data PD according to the fixed data. Variable data for instructing whether or not to display is stored in advance as screen data GD.

The screen display control units 23a and 23b display predetermined screen data GD and process data PD corresponding thereto on the CRT display devices 4a and 4b of the monitoring rooms 3a and 3b, respectively, in accordance with instructions from the operator of the monitoring rooms 3a and 3b. It is a thing.

In the monitoring rooms 3a and 3b, the screen selection switches 5a and 5b are CRT
Select the display screen to be displayed on the display devices 4a and 4b.
The operator sets a desired screen number in this. Follow CR
The T selection switch 7a is for setting a desired CRT display device number when it is desired to display the same display screen on the CRT display device 4a following the CRT display device in another monitoring room. However, in this embodiment, since there are only two monitoring rooms 3a and 3b, the number of the CRT display device 4b of the other monitoring room 3b is set to the following CRT selecting switch 7a, and the following CRT selecting switch 7a is also set.
The number of the CRT display device 4a is set in b. The follow-up permission switch 8a is turned on when the CRT display device 4a starts the screen display following the CRT display device 4b as described above. Similarly, the follow-up permission switch 8b is used for the CRT display device 4
Turn on when starting the above screen display with b.

The information set in the switches 5a, 7a, 8a and 5b, 7b, 8b is the switch signal input section 24a, 24b of the process computer 2.
Is stored in the storage unit 22 via. That is, the screen numbers set in the screen selection switches 5a and 5b are the requested screen numbers Ka and Kb, and the CR numbers set in the following CRT selection switches 7a and 7b.
The T display device numbers are stored as the following CRT numbers La and Lb, respectively. Furthermore, when the follow-up permission switches 8a and 8b are turned on, the follow-up permission flags Ma and Mb are set.

Further, the screen display control unit 23a, 23b, when displaying a predetermined display screen on the CRT display device 4a or 4b, stores the display screen number Ja or Jb indicating the screen number being displayed in the storage unit 22. There is.

Here, the operation of the screen display control units 23a and 23b is shown in FIG. 2 by taking the 23a side as an example. When the screen display control unit 23a starts the screen display control, it reads the display screen number Ja and the requested screen number Ka stored in the storage unit 22. Then, the display screen number Ja and the requested screen number Ka are collated (process 10).
1). This display screen number Ja is data indicating the screen number being displayed, so it is not yet stored at the start of this control operation. Therefore, it is determined that the two do not match (process
(N of 101), a process of setting the requested screen number Ka to x for later determination process is performed (process 102).

Next, the display screen number Ja and its x are collated (process 10
3) Similarly to the above, since the display screen number Ja is not number data at this time, it is determined that the two do not match (N in process 103). As a result, x is stored in the storage unit 22 as the display screen number Ja (process 104).

Next, the fixed data and variable data corresponding to x in the screen data GD are read out, and a screen such as a plant system diagram is displayed on the CRT display device 4a according to the fixed data (process 105). Since the variable data is data that indicates what kind of process data should be displayed on the screen, the corresponding data in the stored process data PD is read (process 106), the plant system diagram of the CRT display device 4a, etc. The process amount indicated by the data is displayed together with the display screen of (step 107). On the display screen at this time, a screen number 201 and a time 202 are added and displayed as shown in FIG. Further, the requested screen number Kb on the monitoring room 3b side is read from the storage unit 22, and the number 203 of the CRT display device 4b on the monitoring room 3b side and the screen number 204 being displayed are displayed together (process 108).

In the present embodiment, the number of other monitoring rooms is only 3b, but when there are a plurality of monitoring rooms, the request screen numbers in all the other monitoring rooms are displayed similarly.

After that, the process returns to the process 101 after a certain time which is the time interval for updating the display screen (process 109).

In process 101, when the display screen number Ja and the requested screen number Ka match (Y in process 101), the follow-up permission flag Ma stored in the storage unit 22 is checked (process 110).
Here, when the follow-up permission flag Ma is off, the display screen number Ja is set to x (process 111). In this case, in the next processing 103, the display screen numbers Ja and x match (Y in processing 103), and processing 106 and subsequent steps are executed. This makes CR
As for the display screen of the T display device 4a, the fixed screen such as the system diagram remains unchanged, and only the display of the process amount is updated.

On the other hand, if the follow-up permission flag Ma is turned on in process 110 (Y in process 110), the follow-up CRT number La stored in the storage unit 22 is read. And the C indicated by the number La
The RT display device is determined, and the requested screen number corresponding thereto, that is, Kb in this embodiment, is read from the storage unit 22 (Processing 11
2). Then, the requested screen number Kb is set as x (Processing 11)
3). After that, the same operation as described above is performed.

As a result, the CRT display device 4a is displayed on the CRT of the other monitoring room 3b.
The same display screen as the display device 4b is displayed.

Although the operation on the screen display control section 23a side has been described above, the screen display control section 23b side similarly displays a predetermined display screen on the CRT display device 4b based on the other data of the storage section 22.

Now, the operators 9a and 9b operate the screen display selection switches 5a and 5b to monitor the plant by viewing a desired display screen. Now, when the operator 9a of the monitoring room 3a finds an abnormality such as a plant accident on the display screen of the CRT display device 4a,
The operator 9a informs the operator 9b of the monitoring room 3b that the abnormality is found on the telephone line 6, and decides which one has the initiative. Here, when the operator 9a has the initiative, the operator 9b sets the number of the CRT display device 4a in the follow-up CRT selection switch 7b and turns on the follow-up permission switch 8b.

The operator 9a displays the display screen of each system on the CRT display device 4a one after another in order to clarify the cause of the abnormality in the plant and checks each process amount and the like. At this time, the other
The same display screen as above is displayed on the CRT display device 4b. Operator 9b looks at the screens that are displayed one after another,
Check the amount of each process in cooperation with the operator 9a. This work is performed while exchanging information through the telephone line 6.

As a result, the operator 9b can see the same screen as the other party without receiving the screen number designation from the operator 9a. Therefore, when the cause of abnormality in the plant is clarified, there is no difference in recognition between the two, and the work can be carried out quickly.

In the above, the case where the operator 9a discovers an abnormality and has the initiative is shown, but the same process can be performed when the operator 9b discovers the abnormality and has the initiative.

Also, during normal plant operation, the number 2 displayed on the display screen of the CRT display device as shown in FIG.
Since the display screen of the other monitoring room is always visible by 03 and the screen number 204, the operators 9a and 9b can assist each other in the lack of monitoring.

Thus, while displaying the screen number being displayed in the other monitoring room on the display screen of each CRT display device, by operating the follow-up CRT selection switch 7a, 7b and the follow-up permission switch 8a, 8b, the other Since the display screen being displayed in the monitoring room can be displayed following the monitoring room, operators 9a and 9b can efficiently grasp the plant status and take prompt action. become.

In the above embodiment, when the display screen of the other inspection room is viewed, the follow-up CRT selection switches 7a and 7b and the follow-up permission switch 8
I tried to operate a and 8b, but I followed the CRT selection switch 7
The same processing may be performed by operating only a and 7b.
Further, the CRT display device number 203 and the screen number 204 are always displayed on the display screen of the CRT display device 4a, 4b, but they are displayed when the following CRT selection switches 7a, 7b are operated. Then, follow-up permission switches 8a, 8b
When is operated, the following screen may be switched and displayed. Further, although the example in which the monitoring rooms are provided at two locations 3a and 3b has been shown, it goes without saying that the present invention can be similarly applied to the case where there are three or more locations.

[Effects of the Invention] As described above, according to the present invention, while the screen number being displayed in another monitoring room is displayed on the display screen of the display device, the display screen being displayed in another monitoring room by the operation of the operator. Can be displayed following the monitoring room, so that the operator can promptly respond to the plant status without making a difference in recognition.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a plant monitoring apparatus according to an embodiment of the present invention, FIG. 2 is a flow chart showing the operation of the screen display control unit of FIG. 1, and FIG. 3 is displayed on the display apparatus of FIG. FIG. 4 is an explanatory diagram showing an example of the displayed screen, and FIG. 4 is a block configuration diagram of a conventional plant monitoring device. 1 ... Process input device, 2 ... Process computer, 3a, 3b ... Monitoring room, 4a, 4b ... CRT display device, 5a, 5b ... Screen display selection switch, 6 ... Telephone line, 7a, 7b ... ... Tracking CRT selection switch, 8a, 8b ... Tracking permission switch, 9a, 9b ... Operator, 21a, 21b ... Process data input section, 22a, 22b ... Storage section, 23a, 23b ... Screen display control section, 24a, 24b …… Switch signal input section.

Claims (2)

[Claims] 1. A process input device for inputting various process signals from a plant, and a display processing device for processing the process signals input from the process input device to create a plurality of screens necessary for monitoring, respectively. A display device and a screen selector are provided, and a plurality of monitoring rooms are provided for selecting any one screen from the plurality of screens created by the display processing device by the screen selector and displaying the selected screen on the display device. In the plant monitoring device, each of the monitoring rooms is provided with a follow-up display device selector for selecting a screen of a display device of another one of the monitor rooms, while the display processing device is provided with a follow-up display device selector. Means for processing the signal to display and output the screen of the display device of the selected monitoring room to the corresponding display device, and to display the display screen number of another monitoring room at a part of the screen of the display device And a means for controlling the plant. 2. The follow-up permission operator for permitting the start of follow-up to the screen of the display device in the selected monitor room according to claim 1, while the display processing device is provided with Means for displaying and outputting the screen number of the display device in the selected monitoring room on a part of the screen of the corresponding display device when a signal from the follow-up display device selector is input; The plant monitoring device is provided with means for displaying and outputting the screen of the display device in the selected monitoring room to the corresponding display device when the signal is input.