JPH07182032A - Monitoring device for plant data - Google Patents

Abstract

PURPOSE:To display/analyze the information on a plant at a distant place by transmitting plant data to the local server of the distant place in real time. CONSTITUTION:Data reception processing 11 of a site server 10 is processing to receive the plant data from a process ocmputer 2, data storage processing 12 is processing to store the received plant data in a data base 13 and to dispatch them to automatic transmission processing 14, and the automatic transmission processing 14 is a processing to transmit the received plant data to a local server 15. On the other hand, a data reception processing 16 of the local server 15 is a processing to receive the plant data from the site server 10, and data storage processing 17 is a processing to store the received plant data in a data base 18. Then, the plant data are edited into time sequential data and stored by the site server 10, and the data are successively transmitted through a communication line to the local server 15 at a distant place and constructed again as the time sequential data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant data monitoring device for supporting maintenance of an operating device of a power plant.

[0002]

2. Description of the Related Art For example, in a power plant such as a nuclear power plant, safety is required. Therefore, various process data of the plant are collected and periodically analyzed based on the process data. In this case, an enormous amount of data is required for analysis, so a local server different from the computer for monitoring and control is used.

FIG. 28 shows a conventional plant data monitoring device. Various process signals from the plant 1 are input by the plant monitoring process 3 of the process computer 2 when an event occurs or at a constant cycle. The process signal input by the plant monitoring process 3 is converted into data handled in the process computer 2 here, and input to the display process 4 and the output process 6. The display process 4 performs a process for displaying the data in the display process 5 and displays the monitoring information necessary for the operator.

The output processing 6 outputs the fetched data to an output device 7 such as a printer or a decoder, and stores the data for later analysis in an external medium 8.
To memorize. The external medium 8 is, for example, FD, CMT,
MT, etc.

On the other hand, the local server 15 is a device for storing and accumulating the plant data stored in the external medium 8 by the process computer 2. In addition, the external data input processing 19 in the local server 15 is performed by the external medium 8 (FD, CMT, MT
Is stored in the database 18, and the display analysis process 20 is a process in which the data in the database 18 is processed and displayed on the display device 21.

That is, the plant monitoring process 3 is performed by the plant 1
The plant data from is input periodically or when an event occurs, and the plant data input at that time is transmitted to the display processing 4 and the output processing 6. Here, the event indicates a serious event such as scrum.

The display processing 4 displays the plant data on the display device 5. By performing this periodically, the trend of the plant data is displayed on the display device 5.

On the other hand, the output processing 6 outputs the plant data to the output device 7.

Further, a large amount of plant data and the like when an event occurs are also output to the external medium 8 as needed.

FIG. 29 shows a data flow in that case.
(A) is the case of periodic data, and (b) is the case of data at the time of event occurrence.

Here, in order to detect an abnormality in the plant data, the display of the display device 5 or the value output to the output device 7 is monitored.

For important events (scrum, etc.), the plant data output to the external medium 8 is transported to the local server 15 at the remote laboratory or factory, and the local server external data input processing 19 is performed. Was stored in the database 18 and detailed analysis was performed by the display analysis processing 20, and the result was reported.

[0013]

However, in such a conventional plant data monitoring apparatus, data for performing analysis / diagnosis of plant data at a remote location is output as plant data to an external medium, which is called transportation of the external medium. Since the measures are taken, there has been a problem that it is difficult to respond quickly in a remote place.

Further, a small amount of plant data may be transmitted using a communication network between a remote place and a process computer.
Due to the restrictions of communication networks and process computers, it has been difficult to respond quickly to the transmission of large amounts of information.

As described above, in the conventional system, there is no means for transmitting a large amount of plant data online to a remote place, and the plant data is transported by an external medium such as FD or MT. Therefore, rapid plant data analysis can be performed. There wasn't.

Therefore, analysis / evaluation of urgent data cannot be swiftly dealt with because the information is collected at a remote place by FAX, Tel or the like.

Further, even when the automatic transmission data is meaningless, such as when the plant is stopped, the plant data is transmitted to a remote place, so that the data is also stored / stored.

Furthermore, when the transmission line is temporarily broken down, it is difficult to restore the data loss portion constructed at the remote location because manual input work is required.

An object of the present invention is to install a site server for receiving plant data from a process computer in order to solve the above problems, accumulate the plant data, enable monitoring of the plant data, and transmit the plant data. An object of the present invention is to provide a plant data monitoring device capable of displaying and analyzing plant information at a remote place by transmitting data to a local server at a remote place in real time.

[0020]

A plant data monitoring apparatus according to the present invention inputs various process signals of a plant at the time of occurrence of an event or at a constant cycle and stores a data file storing various process signal values at each input cycle. A process computer that edits plant data consisting of a catalog file that stores other information related to process signals, and
While inputting the plant data edited by the process computer and adding the site server reception date information and the site server transmission date information to the catalog file of the plant data and outputting it, the values of various process signals stored in the data file are output. A site server that edits each type in time series and saves it as a time series data file in a site server database together with a catalog file that stores other information about the time series file data, and a local file in the catalog file of the plant data input from the site server. While adding the reception date information, the values of various process signals stored in the data file are edited in time series for each type, and as a time series data file, a catalog file that stores other information related to the time series file data is also available. Be stored on the server database, characterized in that a local server.

Further, the site server is provided with an interrupt transmission processing function, and when an interrupt occurs due to this interrupt transmission processing function, the transmission of the plant data is stopped, the interrupt transmission data is preferentially transmitted, and the interrupt is released. And the transmission of the plant data including the data during the interruption period is restarted.

Furthermore, the site server is provided with a transmission cancel processing function for designating plant data that need not be transmitted. When an operation request for this transmission cancellation processing function is made, the designated plant data The transmission is stopped.

On the other hand, a flag for identifying untransmitted plant data is provided in the local server in the site server database, and when there is a transmission request for untransmitted plant data from the local server side, the untransmitted plant data is transmitted. I am trying to do it.

When the untransmitted plant data is received, a data reconstructing processing function for reconstructing the time series data file and the catalog file stored in the local server database is provided.

[0025]

[Function] The process computer collects plant data at a fixed cycle, the site server edits the plant data into time-series data and stores the data, and the data is sequentially transmitted to a local server at a remote place via a communication line. However, the plant information can be displayed and analyzed at a remote location by being able to reconstruct it as time series data.

Then, by prioritizing and transmitting the data of high urgency to the data server at the remote place, the data can be analyzed and countermeasures can be promptly performed when an event such as a plant trip occurs.

Further, by not transmitting unnecessary data to the data server at a remote place during the periodical inspection of the plant, the saved data area is effectively utilized, and the data not received by the local server is sent to the site server. In response to the request for retransmission, it is possible to easily recover data that is discontinuous in time.

[0028]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

First, FIG. 1 is a block diagram showing the first embodiment of the present invention. In this embodiment, the site server 1
0 is provided.

In the figure, the parts shown in FIG. 29 are designated by the same reference numerals. The plant 1 is a nuclear plant or the like, and the plant monitoring process 3 of the process computer 2 takes in plant data from the plant 1. Then, the plant data is displayed on the display device 5. Data transmission process 9
Is a process for transmitting the plant data collected by the plant monitoring process 9 to the site server 10.

On the other hand, the data receiving process 11 of the site server 10 is a process for receiving the plant data from the process computer 2, and the data storing process 12 stores the received plant data in the database 13 and the passive transmitting process 1
4, and the automatic transmission process 14 is a process of transmitting the received plant data to the local server.

The data receiving process 16 of the local server 15 is a process of receiving the plant data from the site server 10, the data storing process 17 is a process of storing the received plant data in the database 18, and the display device 21. Is a process for displaying the data of the database 18.

Next, the operation of each process will be described. The plant monitoring processing 3 of the process computer 2 inputs plant data from the plant 1 as shown in FIG. 2 periodically or when an event occurs, and the plant data input at that time is displayed by the display device 5
To display.

The plant data shown in FIG. 2 is edited by the plant monitoring process 3 into the raw values of the plant data and the catalog information of the data as shown in FIG. 4 by the process shown in FIG.

The editing method will be described below. First, FIG.
Is a 10-minute cycle from the plant 1 (t2-t1 = t3
-T2 =. ． ． = 10 minutes), the plant data input at time t1 is a1, b1,
c1. ． ． And the plant data at time t2 is a
2, b2, c2. ． ． , A, b, c. ． ． Indicates another signal.

Reference numeral 4 is plant data a, b, and
c. ． ． Shows a catalog file in which the data is collected into one file, and the reception type of the data and the collection time (ti) are saved.

The editing method will be described below with reference to the plant monitoring processing flow shown in FIG. 3. First, the plant data (a1, b1, c1 ...) Of FIG. Data file at time t1 (FT
Create 1).

Further, a catalog file of the data file of t1 is created, and time t1 and signal type are set. After that, the t1 catalog file and the t1 data file are combined into a set, and data transmission processing is performed as plant data 9
Send to. At this time, it is assumed that the signal type is determined by a certain rule (cycle, data type, etc.).

The plant data (DT1) in FIG. 4 is passed to the data transmission processing 9 of the process computer 2. The data transmission processing 9 edits the plant data shown in FIG. 4 into the plant data shown in FIG. 6 according to the flow shown in FIG.

That is, the plant data of FIG. 6 is transmitted to the data reception processing 11 of the site server 10 by the data transmission processing 9.

Data reception processing 11 of the site server 10
6 edits the received plant data of FIG. 6 into plant data as shown in FIG. 8 according to the flow shown in FIG. 7, and transfers it to the data storage processing 12.

The data storage processing 12 edits the plant data shown in FIG. 8 into the plant data shown in FIG. 10 according to the flow shown in FIG. 9 and stores it in the database 13 in time series.

The method for editing the time series data will be described in detail below.

FIG. 8 shows plant data input to the data storage processing 12, and shows a plant data file at time ti and its catalog file.

The data storage process 12 receives the plant data (catalog and data) at time ti in FIG. 8 in the flow of FIG. 9 and creates the catalog file shown in FIG. At this time, when the number of collected data is 0 in the catalog file of FIG. 10, a catalog of file 1 is newly created, and the signal number, the number of collected points, the number of collected data, the data size, and the sampling interval in FIG. 8 are shown in FIG. The value of ti shown in FIG. 8 (collection time of received ti data) is set to the file save data start date and the file save data end date of FIG.

Further, the file 1 of FIG. 10 is newly created and the data of ti of FIG. 8 is stored in the first record of the file 1.

When the plant data of FIG. 8 is received when the number of collected data of FIG. 10 is other than 0, the number of collected data of FIG. 10 is added (+1), and the value of ti of FIG. Is set and the data of ti is saved in the next record of the file 1. This makes it possible to create time series data.

At this time, the value of ti in FIG. 8 and the value in FIG.
The difference in the end date of the data saved in the file is the plant 1
Is the data generation time interval (10 minutes). At the same time, the plant data of FIG. 8 is passed to the automatic transmission process 14.

The automatic transmission processing 14 edits the plant data shown in FIG. 8 into the plant data shown in FIG. 12 according to the flow shown in FIG. 11, and the data is transmitted through the transmission network to the local server 1.
5 to the data reception processing 16 of FIG.

The data reception processing 16 edits the received plant data of FIG. 12 into the plant data shown in FIG. 14 by the flow of FIG. 13 and transfers it to the data storage processing 17.

The data storage processing 17 edits the plant data of FIG. 14 into the plant data of FIG. 16 by the flow of FIG. 15 and stores it in the database 18 in time series.

The method of editing the time series data will be described in detail below.

The plant data storage processing 17 of FIG. 14 is the plant data to be input, and shows a plant data file at time ti and its catalog file.

The data storage processing 17 is the flow of FIG. 15 and the plant data (catalog and data) at time ti of FIG.
Is received and the catalog file shown in FIG. 16 is created.
At this time, when the number of collected data is 0, the catalog of the file 1 is newly created. The signal number, the number of collected points, the number of collected data, the data size, and the sampling interval of FIG. 8 are set in FIG. 16, and the date through the file save data of FIG. 16 and the value of ti of FIG. The collection time of the received ti data) is set.

The file 1 of FIG. 16 is newly created and the data of ti of FIG. 14 is stored in the first record of the file 1.

When the plant data in FIG. 14 is received when the number of collected data in FIG. 16 is other than 0, the number of collected data in FIG. Set the value and save the ti data in the next record in file 1. This makes it possible to create time series data.

At this time, the value of ti in FIG. 14 and that in FIG.
The time difference between the file storage data end dates of No. 6 is the data generation time interval (10 minutes) from the plant 1.

For example, the plant monitoring processing 3 of the process computer 2 is performed by using the plant data having a cycle of 10 minutes as shown in FIG.
Is received and edited into plant data (catalog data, raw data) as shown in FIG. At this time, the signal type of the edited data and the time input from the plant are added to the catalog data.

The plant data is edited into plant data (catalog data, raw data) as shown in FIG. 6 by the data transmission processing 9. At this time, the number of collected points (the number of a, b, c) of the edited data and the number of collected data (the number of 10-minute cycles) are added to the catalog data.

The edited plant data is transmitted to the site server 10 and edited by the data reception processing 11 into plant data (catalog data, raw data) as shown in FIG. At this time, the site server reception date is added to the catalog data.

The plant data of FIG. 8 is the data storage processing 1
2 is stored in the database 13 as time series data as shown in FIG. At this time, the number of collected points of the catalog data indicates the number of stored data of 10-minute cycle, the start date of the file save data indicates the date input from the plant 1 of the data stored at the beginning of the file, and the end date of the file save data indicates Indicates the date input from Plan 1 of the data stored at the end of the file.

The plant data shown in FIG. 8 is transmitted to the local server 15 by the automatic transmission processing 14. At this time, the corresponding transmission flag of the ti data in the database 13 shown in FIG. 17 becomes 1 (transmitted).

On the other hand, the data reception processing 16 on the side of the local server 15 is as shown in FIG.
Edit to the plant data shown in 4. At this time, the local server reception date is added to the catalog data.

The data storage processing 17 edits the plant data shown in FIG. 14 into the plant data shown in FIG. 16 and stores it in the database 18. At this time, the transmission flag is set to 1 (received) in the database 18 shown in FIG.

The time-series file of the database 13 on the site server 10 side shown in FIG. 17 cyclically saves data at a certain number of times, and when the transmission to the local server 15 fails, the transmission flag is set to 0 (not Send).

FIG. 18 shows an example of the time series data storage processing.

In the figure, first, in order to find out in what number of the time-series file the plant data received this time may be stored, the stored record number and the maximum record number of the file are checked, and it is smaller than the maximum record number of the file. If the file No. The plant data received in the Xth record of N is saved and the record number. To update.

The record number to be saved. Is greater than the maximum value, the record number. Is the initial value (= 1)
And the file number (= N) is updated.

Next, it is checked whether the file number exceeds the maximum file cyclic number, and if it exceeds, the file number is set to the initial value (= 1).

After that, the file No. The plant data received in the Xth record of N is saved and the record number. To update.

Data generated from the plant 1 is shown in FIG.
Data is generated in the order of t1, t2, and t7 like 9 (data from t3 to t6 is generated (received) for some reason)
If it could not be done), time series file 1 shown in FIG. 19
The content of is calculated by dividing the time difference between the value of ti in FIG. 14 and the end date of the file save data in FIG. 16 before updating by the sampling cycle in FIG. 14 to determine the number of records in the missing data area and deleting the data area from t3 to t6. Perform processing to fill in as data. By doing so, it is possible to provide data for monitoring long-term trends by saving the plant data as time series data.

A second embodiment of the present invention will be described with reference to FIG. In FIG. 20, the processes designated by the same reference numerals as those in FIG. 1 have the same functions as those in FIG.

Interrupt transmission processing 2 in the site server 10
2, the automatic transmission process 14 is periodically performed by the local server 15
To temporarily stop the transmission of the plant data being transmitted to, and transmit the data of the database 23 instead of the plant data. For example, when it becomes necessary to transmit data of higher importance than normal transmission data, the data is saved in the database 23 by notifying that it is interrupt data from the outside, and the interrupt transmission processing 22
To start.

The interrupt transmission processing 22 is a database 23.
The designated data is taken out and notified to the automatic transmission process 14. The automatic transmission process 14 stops the transmission from the data storage process 12. After that, the plant data received by the site server 10 becomes a transmission flag 2 (interrupt) of the database 13 as shown in FIG. 17, and is stored in the database 13. Then, the data from the interrupt transmission processing 22 is transmitted to the local server 10.

The local server stores the received data in the database 30 as interrupt data. When the storage in the local server 15 is completed, the site server 10
The automatic transmission process 14 transmits the plant data with the transmission flag set to 2, and when the transmission of the data is completed, the normal data transmission is performed.

The flow of interrupt processing is shown in FIG.

In FIG. 21, when an interrupt event occurs in the site server 10, the transmission of the plant data, which has been periodically transmitted to the local server 15 until now, is temporarily stopped, and the interrupt transmission data is automatically transmitted. To the local server 15.

For example, the occurrence of an event is judged by the human system and notified to the interrupt transmission processing 22 through dialogue.

There is also a method of notifying the interrupt transmission process 22 that an event has occurred by triggering an external signal. However, during this period, a flag indicating that the plant data that is periodically received is not transmitted to the local server 15 because the database 13 of the site server 10 is interrupted is set. After that, when the transmission of the interrupt transmission data is completed, the data received during the interrupt transmission is transmitted to the local server 15 first, and then the transmission of the normal periodic data is restarted.

According to the second embodiment described above, it is possible to transmit data with higher urgency than the transmission data of normal plant data.

A third embodiment of the present invention will be described with reference to FIG. In FIG. 22, the processes having the same numbers as in FIG. 1 have the same functions as those in FIG.

The transmission stop processing 24 in the site server 10 temporarily stops and restarts the transmission of the plant data which the automatic transmission processing 14 periodically transmits to the local server 15. This designation can be performed for each signal type (number assigned to each plant data having a different cycle).

For example, in some cases, the transmission data sent from the site server 10 to the local server 15 is obviously unnecessary for the local server 15. In this case, when the site operator judges that the transmission data is unnecessary, the plant data of the signal type is transmitted. Since the cancellation request is issued, the transmission cancellation processing 24 issues a command to the automatic transmission processing 22 to cancel the transmission of the plant data of the specified signal type, and stops the transmission of the plant data of the specified signal type. For the plant data for which transmission has been stopped, the transmission flag in FIG. 17 is set to 3 (transmission stopped).

When the user wants to restart the transmission, similarly, the transmission stop processing 24 issues a command to the automatic transmission processing 22 to restart the transmission of the plant data of the signal type. At this time, the data is not transmitted to the local server 15 during the suspension.

The flow of the cancellation processing is shown in FIG.

In FIG. 23, when a transmission stop request is generated in the site server 10, the transmission of the plant data of the designated signal type, which has been periodically transmitted to the local server 15 until now, is stopped and the local server 15 is stopped. Will not send any of that plant data. In addition, the plant data that is periodically received during this period is sent to the database 13 of the site server 10 by the local server 15 for stopping transmission.
Has been set to indicate that it is not sending to.

After that, if a transmission restart request is issued,
The transmission of the plant data of the signal type which was stopped is restarted. At this time, the plant data of the signal type stored while the transmission is stopped is not transmitted to the local server 15.

According to the above third embodiment, the plant 1,
It is not necessary to transmit invalid plant data for each signal type during the periodic inspection of the process computer 2 or the like. Further, it is possible to enable transmission to the local server 15 by changing the transmission flag to untransmitted.

A fourth embodiment of the present invention will be described with reference to FIG. In FIG. 24, the processes having the same numbers as those in FIG. 1 have the same functions as those in FIG.

The interactive process 25 in the local server 15 instructs the site server 10 to retransmit the untransmitted data according to the operator's instruction, and the retransmit request process 26 requests the retransmission of the unreceived data. Is requested to the site server 10.

The retransmission request determination process on the site server 10 side receives the retransmission request from the local server 15. or,
The untransmitted data search processing 29 is requested that a resend request has been made.

The untransmitted data retrieval processing 29 retrieves untransmitted data from the database 13 and transfers it to the automatic transmission processing 14. The untransmitted data received by the local server 15 is stored in the database 18 by the data reconstruction processing 27.

For example, when there is data for which transmission has been stopped, when unreceived data is searched for by interactive processing of the local server 15, a period (missing data period) in which time series data is missing as shown in FIG. 19 is found. You can At this time, the site server 10 is requested to retransmit the data through the above processing.

FIG. 25 shows the flow of retransmission request processing.

In FIG. 25, when a resend request is issued from the local server 15, the unsent data search process of the site server 10 searches for plant data that has not been sent to the local server 15 and automatically sends the data. Is transmitted to the local server 15.

Next, the received untransmitted data is reconstructed in the already existing database 18.

The flow of the reconstruction process is shown in FIG.

In FIG. 26, when untransmitted data as shown in FIG. 27 is received, the value of ti of the catalog data (collection time of data of ti) is taken out (denoted as a),
Catalog of database 18 to be saved next (Fig. 16)
The file save data start date is retrieved from (denoted by b).

By dividing the absolute value of ab by the sampling interval of the catalog of FIG. 16, the record position of the data to be stored is found and overwritten in the current time series file of the database 18 (update is done in record units. ).

According to the fourth embodiment described above, the data not transmitted to the local server 15 due to the abnormality of the transmission line or the like can be retransmitted to be transmitted and the soundness of the plant data can be maintained.

[0101]

As described above, according to the plant data monitoring apparatus of the present invention, the plant data can be quickly transmitted to the local server at the remote place, and the quick plant data analysis and report can be made. .

Further, by having retransmittable data in the site server, it is possible to easily restore the plant data which is not received by the local server at a remote place in the case of transmission failure such as a failure of the transmission line. You can

By enabling the transmission of data with a high degree of urgency in addition to the normal transmission, it is possible to quickly analyze and take countermeasures for serious event data such as a scrum stop.

Further, by not transmitting invalid data, the database resources can be effectively used.

Furthermore, since it is possible to recover the loss of time-series data necessary for monitoring long-term trends, it is possible to provide highly reliable data.

[Brief description of drawings]

FIG. 1 is a block configuration diagram showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of input data to a plant monitoring process in the process computer of the present invention.

FIG. 3 is a flowchart of plant monitoring processing in the process computer of the present invention.

FIG. 4 is an explanatory diagram of plant data after a plant monitoring process in the process computer of the present invention.

FIG. 5 is a flowchart of data transmission processing in the process computer of the present invention.

FIG. 6 is an explanatory diagram of plant data after data transmission processing in the process computer of the present invention.

FIG. 7 is a flowchart of data reception processing in the site server of the present invention.

FIG. 8 is an explanatory diagram of plant data after data reception processing in the site server of the present invention.

FIG. 9 is a flowchart of data storage processing in the site server of the present invention.

FIG. 10 is an explanatory diagram of plant data after data storage processing in the site server of the present invention.

FIG. 11 is a flowchart of automatic transmission processing in the site server of the present invention.

FIG. 12 is an explanatory diagram of plant data after automatic transmission processing in the site server of the present invention.

FIG. 13 is a flowchart of data reception processing in the local server of the present invention.

FIG. 14 is an explanatory diagram of plant data after data reception processing in the local server of the present invention.

FIG. 15 is a flowchart of data storage processing in the local server of the present invention.

FIG. 16 is an explanatory diagram of plant data after data storage processing in the local server of the present invention.

FIG. 17 is an explanatory diagram of the database 13 in the site server of the present invention.

FIG. 18 is a flowchart of a time series storage process in the data storage process of the present invention.

FIG. 19 is a flowchart of a missing data storage process in the data storage process of the present invention.

FIG. 20 is a block diagram showing a second embodiment of the present invention.

FIG. 21 is a flowchart of interrupt transmission processing according to the present invention.

FIG. 22 is a block diagram showing the third embodiment of the present invention.

FIG. 23 is a flowchart of a transmission stop process according to the present invention.

FIG. 24 is a block diagram showing a fourth embodiment of the present invention.

FIG. 25 is a flowchart of a retransmission request process of the present invention.

FIG. 26 is a flowchart of the data reconstruction process of the present invention.

FIG. 27 is an explanatory diagram of data storage by the data reconstruction processing of the present invention.

FIG. 28 is a block diagram of a conventional example.

FIG. 29 is a processing flowchart of a conventional example.

[Explanation of symbols]

 1 plant 2 process computer 3 plant monitoring process 4 display process 5, 21 display device 6 output process 7 output device 8 external medium 9 data transmission process 10 site server 11 data reception process 12 data storage process 13, 18, 23, 30 database 14 Automatic transmission processing 15 Local server 16 Data reception processing 17 Data storage processing 19 External data input device 20 Display analysis processing 22 Interrupt transmission processing 24 Transmission cancellation processing 25 Interactive processing 26 Retransmission request processing 27 Data reconstruction processing 28 Retransmission request judgment processing 29 Unsent data search processing

Claims (5)

[Claims] 1. A data file in which various process signals of a plant are input when an event occurs or at a constant cycle and a value of each of the various process signals is stored, and a catalog file in which other information regarding the various process signals is stored. Process data to be edited into the plant data consisting of, and the plant data edited by the process computer is input, the site server reception date information and the site server transmission date information are added to the catalog file of the plant data, and the data is output while A site server that edits the values of the various process signals stored in a file in time series for each type and saves them in a site server database together with a catalog file that stores other information about the time series file data as a time series data file, Saitosa Local server reception date information is added to the catalog file of plant data input from the server, while the values of the various process signals stored in the data file are edited in time series for each type, and the time series data file is used as the time series. A plant data monitoring device, comprising: a local server that stores a catalog file storing other information about file data in a local server database. 2. The site server is provided with an interrupt transmission processing function, and when the interrupt transmission processing function causes an interrupt, the transmission of the plant data is stopped, the interrupt transmission data is preferentially transmitted, and the interrupt is released. The plant data monitoring device according to claim 1, wherein when the transmission is performed, the transmission of the plant data including the data during the interruption period is restarted. 3. The site server is provided with a transmission cancellation processing function for designating data of the plant data that need not be transmitted, and when there is a request for operation of this transmission cancellation processing function, the designated plant The transmission of data is stopped.
The plant data monitoring device described in. 4. A flag for identifying the plant data that has not been transmitted to the local server is provided in the site server database, and when there is a transmission request for the uncommitted plant data from the local server side, the flag is not transmitted. The plant data monitoring device according to claim 3, wherein the communication plant data is transmitted. 5. A data reconstructing processing function for reconstructing a time series data file and a catalog file saved in the local server database when the untransmitted plant data is received. Four
The plant data monitoring device described in.