JP2786785B2 - Plant data processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant data processing apparatus in a database system of a computer system used for monitoring various plants such as a power plant.

[0002]

2. Description of the Related Art FIG. 17 shows a plant data processing apparatus of a conventional computer system. In this figure, a plant signal input means 1 inputs a plant quantity from each input point of a plant 3, converts it into plant data, and stores it in a plant database 5. The plant database 5 stores always the latest plant data collected by the plant signal input unit 1. The automation logic database 7 stores therein automation logic information for calculating the amount of automation operation of the plant equipment in advance. The automation operation means 9 reads and analyzes the automation logic information from the automation logic database 7, and executes the automation logic information. Is read from the plant database 5 to determine an automated operation amount in accordance with the automation logic, and outputs it to the plant 3. The system diagram display database 11 stores system diagram display information for displaying a plant system diagram screen. The system diagram display control means 13 reads and analyzes system diagram display information from the system diagram display database 11, The plant data at the input point described in the system diagram display information is read from the plant database 5 to create system diagram screen data, and output to the system diagram display device 15.

When the plant database 5 needs to be changed, the operator operates a display device 1 such as a CRT.
Using a dialogue device 17 comprising an input device 17b such as a keyboard 7a and a keyboard, etc.
Request to change the plant database 5. The plant database changing means 19 receives the plant database change request signal from the interactive device 17 and changes the plant database 5.

When the plant database 5 is changed in this way, it is described in the automation logic information stored in the automation logic database 7 and the system diagram display information stored in the system diagram display database 11, respectively. Since the plant input information also needs to be changed, the operator further requests the change of the automation logic database 7 using the interactive device 17 and also requests the change of the system diagram display database 11. The automation logic database changing means 21 changes the automation logic database 7 according to the automation logic database change request signal sent from the dialog device 17. Also,
The system diagram display database changing means 23 is a communication device 17
Receives the system diagram display database change request signal from the system diagram display database 11.

In the above computer system, the automation operation means 9 reads necessary plant data from the plant database 5 based on the automation logic information read from the automation logic database 7, judges the automation operation, and performs the automation operation on the plant. Output the quantity. The system diagram display control means 11 reads necessary plant data from the plant database 5 based on the system diagram display information read from the system diagram display database 11, edits the system diagram screen data, and outputs it to the system diagram display device 15. I do.

As described above, each unit such as the automatic operation unit 9 and the system diagram display control unit 13 reads necessary plant data from the plant database 5 before performing the operation and display.

[0007]

However, in the above-mentioned conventional plant data processing apparatus, the plant database 5 is closely related to the other automation logic database 7 and the system diagram display database 11, but there is almost no connection between the databases. Since there is no connection, when there is a change (addition, deletion, etc.) in the plant database 5, the human system has to check all the functions of the input point used in the database. For this reason, not only is a large amount of time wasted, but also omission of checks occurs due to the human system, and the processing of the automation operation means 9, the system diagram display control means 11 and the like cannot operate correctly, and there is a fear that the computer system may be stopped. .

The present invention has been made in view of the above point. When a plant database is changed, a database related thereto is also automatically changed, and the effect of the change of the plant database is confirmed in advance. It is an object of the present invention to provide a plant data processing device capable of performing the above.

[0009]

That is, a plant data processing apparatus according to the present invention is used for display or calculation in a plant database for storing the latest plant data of each input point input from a plant. At least one plant data related database for storing related data, an input point use database created based on the plant database and the plant data related database, and storing the use information of the plant data of each input point; Device for inputting a change command relating to an input point, and a plant database change command input through the dialog device to change the plant database and output a plant database change occurrence signal. Means for changing a plant database, a plant data related database changing means for changing a plant data related database by a plant database change occurrence signal, and an input point with reference to the plant database and the plant data related database changed by the plant database change occurrence signal An input point application database updating means for updating the application database and an input point application database display control means for displaying the contents of the input point application database on a display device are provided.

[0010]

In the above configuration, the input point use database is created based on the plant database and all the plant data related databases related thereto when the computer system starts up. The plant database change means receives the plant database change command from the interactive device, changes the input point information of the plant database, and outputs a plant database change occurrence signal to the input point use database update means. The input point application database updating means creates a plant data related database change request signal based on the received plant database change occurrence signal and sends it to the plant data related database changing means. The plant data related database changing means changes each plant data related database according to each received plant data related database change request signal. The input point use database updating means waits for the change of the plant database and all the plant data related databases to be completed, and after the change is completed, refers to the plant database and all the plant data related databases, and enters the input point use database of the input point use database. Update information. The input point use database display control means reads the input point use information from the input point use database in response to an input point use display request from the operator input through the interactive device, edits the information, and displays the information on the display device of the interactive device. .

[0011] As described above, in the plant data processing apparatus having the above configuration, all the related databases can be automatically changed only by making a change request for changing the input point information of the plant database. Also,
An input point usage database that shows the interrelationship between the plant database and the plant data related database is created. This input point usage database is automatically updated when the plant database is changed. By displaying on the screen, the mutual relationship between the databases can be confirmed.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. The same parts as those in the conventional example are denoted by the same reference numerals, and duplicate description will be omitted.

FIG. 1 shows an embodiment of a plant data processing apparatus according to the present invention. A plant database for storing the latest plant data at each input point input from a plant 3 via a plant signal input means 1 is shown. 5, an automation logic database 7 in which the automation operation means 9 previously stores automation logic information for calculating an automation operation amount of the plant 3, and a system for the system diagram display control means 13 to display on the system diagram display device 15. A system diagram display database 11 for storing diagram display information in advance, an interactive device 17 including a display device 17a and an input device 17b for requesting a change of the plant database 5 and a request for displaying predetermined information, and an input of the plant database 5 A plant database changing means 31 for changing point information; and an automation logic database. 7, an automation logic database changing unit 33 for changing the automation logic information, a system diagram display database changing unit 35 for changing the system diagram display information of the system diagram display database 11, and uses of the plant data at each input point of the plant database 5. Each time the input point use database 37 for storing information, the plant database 5, the automation logic database 7, and the system diagram display database 11 are updated, these are read to update the input point use information in the input point use database 37. It is constituted by a use database updating means 39 and an input point use database display control means 41 for displaying input point use information of the input point use database 37 on the display device 17a in response to a display request from an operator.

Next, the operation of the plant data processing apparatus having the above configuration will be described.

As shown in FIG. 2, the plant database 5 stores analog input data such as temperature, pressure, flow rate and the like from a plurality of sensors (hereinafter referred to as input points) provided in the plant 3. A current value 53 of plant data such as digital input data indicating whether the motor is running / stopped, opening / closing of a valve, and the like is stored together with input types 52 such as analog input / digital input in the order of input point numbers. Whether or not the input point is used is set in the point use index 51.

Here, when it becomes unnecessary to input data from a certain input point, the operator issues a request for changing the plant database using the interactive device 17 to obtain the data shown in FIG.
The plant database change request signal 60 having the input point number 61 to be changed and the information of the change type 62 such as “delete” as shown in FIG.

Upon receiving the plant database change request signal 60, the plant database change means 31 converts the input point number 61 and the change type 62 into a plant database change signal 70 as shown in FIG. 51 (in the case of deletion, set to the “point not used” state), input point information including an input type 52 such as analog input / digital input, and an initial state 53, and input information of the input point in the plant database 5. Replace with

The plant database changing means 31
Outputs a plant database change occurrence signal having the same input point number and change type information as the plant database change request signal 60 to the input point application database updating means 39 when the plant database 5 is changed.

The input point application database updating means 39 includes:
Upon receiving the plant database change request signal, the automation logic database change request signal and the system diagram display database change request signal having the same input point number and change type information as the plant database change request signal 60 are converted into the automation logic database change means 3 respectively.
3 and output to the system diagram display database changing means 35.

FIG. 5 shows an example of the data configuration of the automation logic database 7. The automation logic database 7 has an automation operation use index 71 indicating whether or not the automation logic is used in the order of the automation logic number.
And an automation operation type 72 indicating logic such as a logical sum or a logical product for determining the timing of outputting the automated operation amount to the plant 3 and an input point number 73 for condition determination as an input of the logic. It is remembered.

Automatic logic database changing means 33
When receiving the automation logic database change request signal, if the information of the change type of the automation logic database change request signal is "delete", the input for all condition determination of all the automation logic numbers of the automation logic database 7 The point number 73 is searched, and the input point number for condition determination of the change target notified by the automation logic database change request signal is deleted.

The system diagram display database 11 includes:
As shown in FIG. 6, the system diagram display data 1
10 is stored. Each system diagram display data 110 is
It has a data configuration as shown in FIG. That is, the system diagram display database 11 displays input values from the plant on the plant system diagram screen as shown in FIG. 8, and accordingly, the corresponding data is used for display in a predetermined display number order for each system diagram screen. A point state display index 111 indicating whether or not the input point number 112 is a target, an input point number 112, a display coordinate 113 for displaying the input value, and a numerical value, a table,
A display type 114 for determining a display form of an input value such as displaying a graph or the like, or displaying a digital amount such as opening / closing of a valve by a color or a marker is stored.

When receiving the system diagram display database change request signal, the system diagram display database changing means 9 determines whether or not to delete an input point based on information on the change type of the request signal. Display database 1
For all the system diagram display data 110, the point state display number information in which the input point number notified by the system diagram display database change request signal is stored is searched, and the point state display index of the point state display number is determined. Change to a deleted state, for example, “unused”.

When the changes of the plant database 5, the automation logic database 7, and the system diagram display database 11 are completed, the input point application database updating means 39 refers to these databases and inputs in the order of the input point numbers as shown in FIG. The input point usage data 370 of the input point number to be changed in the input point usage database 37 storing the point usage data 370 is updated.

The input point usage database 37 stores input point usage data 370 of each input point created by referring to the automation logic database 7 and the system diagram display database 11 based on the plant database 5. .

FIG. 10 shows an example of the data structure of the input point application data 370 of the input point number i (i = 0 to n).
If the point use index of the input point number i in the plant database 5 indicates the “point not used” state, the data of the use number 0 at the head of the input point use data 370 of the input point number i is set in the initial state. You. The initial state is that the previous index number 371 is 0, the next index number 3
72 is 0, the input point use type 373 is in the “unused” state, and the input point use type number 374 is 0.

When the point use index of the input point number i in the plant database 5 is “point used”, when the input point number i is used in the automation logic data of the automation logic database 7, “Automation logic” is set as the input point usage type 373 of the input point usage data, and an automation logic number is set as the input point usage type inner number 374. When the input point number i is used in the system diagram display data 110 of the system diagram display database 11, “system diagram” is set in the input point use type 373, and the system diagram number is set in the input point use type number 374. Is set. The input point use number data of the input point number i is created in the automation logic database 7 and the system diagram display database 11 as many as the input point number i is used, and the previous index number 3 of each input point use number data is created.
The first use number is set in 71, and the next use number is set in the next index number 372. However, the last use number is set to the previous index number 371 of the data of the use number 0, and the use number 0 is set to the next index number 372 of the input point use number data of the last number.

Such an input point application database 37
Is created by the input point application database updating means 39 when the computer system is started as follows.

As shown in the flowcharts of FIGS. 11 to 13, the input point application database updating means 39 first reads the point use index 51 of the input point number 0 from the plant database 5 (step 1). The data of the number 0 of the input point application data 370 is set in the initial state (step 2). Next, it is determined whether the read point use index is in the “use” state (step 3),
If the point use index is in the “unused” state, the next point use index of the input point number 1 is read from the plant database 5 and the data of the number 0 of the input point use data 370 of the input point number 1 is set to the initial state. . The same processing is repeated until the point use index becomes the “use” state.

In step 3, the point use index is "used".
If it is in the state, the automation logic data of the automation logic number 0 is read from the automation logic database 7 (step 4), and it is determined whether or not the automation operation use index is in the "use" state (step 5). If it is in the "unused" state, the next automation logic data of the automation logic number 1 is read. If it is in the "used" state, it is searched whether or not the automation logic data has the same input point number i for condition determination as the input point number i (step 6). For example, the automation logic data of the next automation logic number is read.

If there is an input point number i for condition determination, the data (application number k) whose next index number 372 is 0 is read from the input point usage data 370 of the input point number i in the input point usage database 37 (step 7). ), It is checked whether the input point use type 373 is in the "unused" state (step 8). The automation logic number j is set (step 9).

On the other hand, if the next index number 372 is 0, but the input point usage type 373 is not in the “unused” state, the next index number 372 is set to the current usage number + 1, that is, k + 1 ( Step 10).
Next, the previous index number 3 of the (k + 1) th data
71, the current data number k, the next index number 37
2 is set to the leading application number 0, and the input point usage type 373 and the input point usage type number 374 are set to “automation logic” and automation logic number j (step 1).
Together with 1), the last data this time becomes the last data at the index number 371 before 0 which is the first use number (k + 1).
The number is set (step 12).

With the above operation, as shown in FIG. 14, the number k (k = 0, 1,..., N) of the input point application data 370 is obtained.
Can be set to k-1 (however, n when k = 0) and k + 1 (however, 0 when k = n) to the next index number 372, and each application number data is associated in a ring shape. Can be

The same operation is automated. Logic database 7
Is repeated until the automation logic number j becomes final.

When all the searches of the automation logic database 7 are completed, the display data 110 of the system diagram number 0 is read from the system diagram display database 11 (step 1).
3). This display data 110 has a point state display index 1
It is checked whether or not 11 is in the "point display use" state and there is point state display number information whose input point number is i (step 14). If not, the display data of the next system diagram number 1 is read.

If the input point number i is used, the next index number 372 is set to 0 based on the input point usage data 370 of the input point number i in the input point usage database 37 in the same manner as when the automation logic database 7 is searched. (Application number k) is read (step 15), and it is determined whether or not the input point application type 373 is in the “unused” state (step 16). In the case of the "unused" state, this is rewritten into the "system diagram", and the system diagram number 1 currently searched is set to the input point usage type number 374 (step 17). If the input point use type 373 is not in the “unused” state, the next index number 372 is set to the current use number + 1, that is, k + 1 (step 18). Then (k
The current data number k is set to the previous index number 371 of the (+1) th data, the leading application number 0 is set to the next index number 372, and the input point usage type 373 and the input point usage type number 374 are respectively set. A "system diagram" and a system diagram number 1 are set (step 19). Then, the (k + 1) -th data which is the last data this time is set as the index number 371 before the 0th, which is the first usage number (step 20). The same operation is sequentially performed up to the display data 110 of the last system diagram number in the system diagram display database 11.

The input point use data 370 of the input point number 0 is created by the above operation, and the same operation is repeated for all the input points stored in the plant database 5, whereby the input point use database 37 is completed.

The input point application database updating means 39 includes:
When the plant database 5 is changed, the changed plant database 5, the automation logic database 7, and the system diagram display database 11 are read, and the input point application data 370 is changed by the above-described procedure only for the input point number to be changed. It creates and updates the corresponding input point usage data in the input point usage database 37.

The input point use database display means 41
When an input point use display request signal input from the operator via the interactive device 17 is received, the input point use data 370 of the designated input point number is input to the input point use database 3.
7, the input point use display data 410 as shown in FIG. 15 is created and displayed on the screen of the display device 17a as a list shown in FIG.

As is clear from the above description, in this embodiment, when the plant database 5 is changed, the automation logic database 7 and the system diagram display database 11 related to the plant database 5 are automatically changed. . In addition, an input point application database indicating the connection between these databases is created and automatically updated with a change in the database. When there is a display request from an operator, the latest input point application data is always displayed.

Therefore, by displaying the latest input point application data, the operator can confirm in advance what effect the change of the plant database will have. Occurrence of malfunction of the display control means and the like can be prevented.

In the above embodiment, the computer system using the automation logic database and the system diagram display database as the plant data related database has been described as an example. However, the present invention is not limited to this. The present invention can be applied to all systems having a database related to plant data, such as a knowledge base of the present invention.

[0043]

As described above, according to the present invention,
By creating and displaying information on how to use the input values from each input point of the plant based on the plant database and all related databases, it became necessary to change the plant database Sometimes, the effect of the change can be confirmed in advance. Further, when the plant database is changed, the database related thereto is also automatically changed, and it is possible to prevent the occurrence of operation failure such as the stop of the processing function using the related database.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a plant data processing device according to one embodiment of the present invention.

FIG. 2 is a diagram illustrating a data configuration of a plant database.

FIG. 3 is a diagram illustrating a data configuration of a plant database change request signal.

FIG. 4 is a diagram illustrating a data configuration of a plant database change signal.

FIG. 5 is a diagram illustrating a data configuration of an automation logic database.

FIG. 6 is a diagram illustrating a basic data configuration of a system diagram display database.

FIG. 7 is a diagram exemplifying a configuration of each system diagram display data in a system diagram display database;

FIG. 8 is a diagram illustrating a plant system diagram screen;

FIG. 9 is a diagram illustrating a basic data configuration of an input point application database.

FIG. 10 is a diagram illustrating a configuration of input point application data in an input point application database;

FIG. 11 is a part of a flowchart showing a procedure for creating an input point application database.

FIG. 12 is a part of a flowchart showing a procedure for creating an input point application database.

FIG. 13 is a part of a flowchart showing a procedure for creating an input point application database.

FIG. 14 is a diagram related to an input point application database index.

FIG. 15 is a diagram illustrating a data configuration of input point use display data.

FIG. 16 is a diagram exemplifying an input point use list display screen.

FIG. 17 is a block diagram showing a conventional example of a plant data processing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Plant signal input means 3 ... Plant 5 ... Plant database 7 ... Automation logic database 9 ... Automation operation means 11 ... System diagram display database 13 ... System diagram display control means 15 System diagram display device 17 Dialog device 31 Plant database changing device 33 Automation logic database changing device 35 System diagram display database changing device 37 Input point application database 39 ... Input point use database updating means 41... Input point use database display control means

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁶ , DB name) G08B 25/00 510 G01D 21/00 G05B 23/02 301 G06F 15/00 310 G06F 17/40

Claims (1)

(57) [Claims] 1. A plant database storing the latest plant data at each input point input from a plant, and at least one plant data related database used for display or calculation and storing data related to the plant data. An input point use database created based on the plant database and the plant data related database and storing the use information of the plant data of each of the input points; and a change command related to the input point is input to the plant database. A dialogue device comprising a display device and an input device; and a plant database change means for changing the plant database according to a plant database change command input via the dialogue device and outputting a plant database change occurrence signal. A plant data related database changing means for changing the plant data related database by the plant database change occurrence signal; and the input point application database by referring to the plant database and the plant data related database changed by the plant database change occurrence signal. A plant data processing apparatus comprising: an input point use database updating unit that updates the input point use database; and an input point use database display control unit that displays the contents of the input point use database on the display device.