JPH02168330A - Measuring and supervising device for process data - Google Patents

Abstract

PURPOSE:To read correct process data even at the time of the extension and the alteration of equipment by performing reading processing correctly according to file form information and the attribute information of data at the point of time of the acquisition of the process data. CONSTITUTION:When it comes to prescribed acquisition time, a process data writing part 22 acquires the process data at that time from a data file part 12, and writes it in a data file 30. At the time of this storing processing, the process data to which the edition number information of a definition file part 11 is attached is stored in the data file 30. A process data reading part 23 reads out the process data at the designated time stored in the file 30 in response to a request from a data processing part 25. At that time, a control information reading part 24 reads out the file form information for the edition number information and the attribute information of the process data attached to the process data from the definition file 40.

Description

[Detailed Description of the Invention] [Summary] Regarding a process data measurement and monitoring device that stores and utilizes process data collected according to a predetermined time rule in a data file, the present invention relates to a process data measurement and monitoring device that saves and uses process data collected according to a predetermined time rule. The purpose is to easily respond to changes in process data attributes, and a definition file is created that manages file format information that defines the file format of data files and attribute information of the process data that is sent. , a definition file update unit that stores new management information in the definition file together with its version information each time there is a change in the management information of the definition file; and a file access unit that executes file access. When writing process data to a data file, it is written with the latest management information version information, and when reading process data,
The configuration is configured to read management information corresponding to version number information attached to process data from a definition file, and to read correct process data information in accordance with the management information.

The present invention relates to a process data measurement and monitoring device that reads and outputs time series data of process data.

For example, in a measurement and monitoring system that monitors processes such as water supply equipment and outputs aggregated data such as daily and monthly reports, process data collected according to predetermined temporal rules is stored for a long period of time. A process data measurement and monitoring device is provided that processes the time-series data to be outputted in response to a request. With this process data measurement and monitoring device, file formats and process data attributes will change as process equipment expands and changes, so it is possible to easily respond to such changes. It is necessary to build a suitable structure.

[Industrial application field]

The present invention stores process data collected from a process terminal according to a predetermined time rule over a long period of time, and also stores the stored process data according to a request. The configuration was such that file access routines for accessing process data data files were prepared in correspondence with process equipment. For example, when the file format changes as process equipment is expanded or changed, such as when the storage address of process data is changed due to an increase in the number of measurement points, the new The solution was to create a new file access routine and replace it.

[Problem to be solved by the invention]

However, with such conventional technology, if the file access routine is changed due to the expansion or change of process equipment, the old file access routine cannot be used, and the saved data before the change becomes unusable. There was a problem with it being put away. Moreover, since this file access routine modification process needs to be done at the same time as processing equipment expansion, etc., if data is being collected from a process terminal in a remote location, it is necessary to deploy a large number of personnel. In addition to this, there was a problem in that the system had to be stopped for a long time for switching.

Furthermore, in the conventional technology, even if process data attributes change due to, for example, changing the measurement scale of a measuring instrument, it is possible to distinguish the process data attributes after the change from those before the change. Therefore, if there is a change in the measurement scale, 8.
There was also the problem that Japanese and monthly reports had to be created manually.

The present invention has been made in view of the above circumstances, and is designed to enable process data before the change to be used accurately as is, even when file formats and process data attributes are changed due to expansion or change of process equipment. The purpose of this invention is to provide a process data measurement and monitoring device.

[Means to solve the problem]

FIG. 1 is a diagram showing the basic configuration of the present invention.

In the figure, 10 is a process terminal that is provided in plurality, 20 is the main body of the measurement and monitoring device, 30 is a data file for long-term storage of process data, 40 is file format information that defines the file format of the data file 30, and 40 is a data file that specifies the file format of the data file 30. Definition file 4 that manages the attribute information of the process data that comes
It is 0.

The process terminal 10 includes a definition file section 11 and a data file section 12. This definition file section 11 is
The data file unit 12 manages attribute information required for process data detection processing, stores the detected process data with version information of the definition file unit 11, and also stores the detected process data with version number information of the definition file unit 11. According to the instructions, this stored process data is sent to the measurement and monitoring device main body 2.
Process to send to 0.

The measurement monitoring device main body 20 includes a file access section 21 consisting of a process data writing section 22 and a process data reading section 23, a data processing section 25, and a definition file updating section 2.
6. The process data writing unit 22 collects the process data LHed by the process terminal 10 according to a predetermined time rule, and writes the collected process data to the data file 30 together with the version information attached thereto. , the process data reading unit 23 reads the time series data of the saved process data from the data file 30, and corresponds to the version number information added to the process data from the definition file 40 by the management information output unit 24. The data processing section 25 performs processing to read out the management information and read out correct process data information according to the management information, and the data processing section 25 performs processing to execute predetermined data processing using the process data read out by the process data reading section 23. The definition file update unit 26 stores the new management information together with its version information in the definition file 40 and sets it in the definition file unit 11 each time there is a change in the management information of the definition file 40. do.

[Effect]

In the present invention, when a predetermined collection time comes, the process data writing section 22 collects the process data at that time from the data file section 12 and writes it into the data file 30. During this storage process, the process data sent from the data file section 12 is attached with the version number information of the definition file section 11 at that time, so this version number information is also stored in the data file 30. become.

Then, the process data reading unit 23 reads data from the data processing unit 2.
In response to a request from 5, the process data at the specified time stored in the data file 30 is read out. At this time, the management information successive section 24 reads out the file format information and process data attribute information corresponding to the version number information attached to the process data from the definition file 40, so the process data reading section 23 reads out the process data attribute information. By determining the correct storage address of the process data according to the read file format information and determining the correct value of the process data at the storage address according to the read attribute information, the correct process data information is read and the data processing unit 25 will be notified.

In this way, in the present invention, successive processing of saved process data is accurately executed according to the file format information and process data attribute information at the time of collecting the process data managed by the definition file 40. Even when the process equipment is expanded or changed, the correct process data information can be read out without changing the access routine of the file access section 21.

〔Example〕

Hereinafter, the present invention will be explained in detail according to examples.

FIG. 2 shows a system configuration diagram of the present invention. A measurement and monitoring device indicated by 1 in FIG. The collected process data will be stored and used over the long term. In order to realize this process, as explained in FIG. 12.

Next, assuming water supply equipment as the process equipment, and assuming two types of process data to be measured by the process terminal 10: water level and flow rate, the data file 30 is
The contents stored in the definition file 40 will be explained in detail.

FIG. 3 shows an explanatory diagram of the contents stored in the definition file 40. As shown in this figure, the definition file 40 specifies the number of measurement points of water level data and flow rate data that define the file format information, and the measurement units of each water level data and each flow rate data that represent process data attributes. The management information is also configured to manage version number information indicating the number of times the management information has been updated. When this management information is updated to new information due to expansion of water supply facilities, etc., the definition file 40 is configured to manage the newly updated management information in addition to the previous management information. Process. That is, the definition file 40 manages file format information and attribute information of process data regarding the water supply equipment used so far in order according to the version number information.

In Figure 3, the management information for "Version 1" in Figure 3 (a) is
This is an example in which the management information is updated to "version number 2" in FIG. 3(b). Here, the management information of "Version 2" is different from the management information of "Version 1" because one new water level measurement point is added due to equipment addition, so the number of water level data measurement points is increased to 6. 10 due to changes in measurement equipment.
The measurement unit at the measurement point of the th flow rate data is “0.
This shows an example in which the speed is changed from "01nr/h" to "0.1//bi." Note that the measurement unit of the newly added water level data is "0.01 m".

This update process of the definition file 40 is carried out for the expansion and
This is executed every time a change is made, and in conjunction with the updating process of the definition file 40, the new management information is set in the definition file section 11 together with the version number information. Through this setting process, each process terminal 1
The data file section 12 of No. 0 can detect correct process data according to the correct attribute information specified by the definition file section 11. To explain using the above example, the flow rate data detected at the measurement point of the 10th flow rate data has a correct measurement unit of "0.1tyf/h".
” will be correctly scaled and detected.

The data file unit 12 detects process data when a predetermined measurement cycle is reached, replaces it with the previously detected data, and stores it. During this process data storage process, the data file unit 12 processes the process data to attach the version number information set in the definition file unit 11. As described above, the version number information set in the definition file section 11 is the latest version number at that time. From now on, the version number information added to the process data sequentially detected by the data file unit 12 will specify the latest file format information and attribute information of the process data stored in the definition file 40. Then, the measurement and monitoring device 1 performs the observation according to the observation time, which has a fixed period such as every hour, for example.
Detected process data at the observation time is collected from the data file unit 12 of each process terminal 10 and processed to be stored in the data file 30.

FIG. 4 shows a specific example of the contents stored in this data file 30. Here, the specific example in FIG. 4 assumes process data to be stored according to the management information of the definition file 40 shown in FIG. 3, and the storage state in FIG. 4(a) is The storage states shown in FIG. 3(a) and FIG. 4(b) respectively correspond to FIG. 3(b).

As shown in this figure, the data file 30 uses observation time as a basic storage unit, and stores version information at that observation time, observation time, and water level data and flow rate data measured at each measurement point. It will be configured to be stored as one set. The storage order at this time can be determined in advance, but in this example, the "version information" is placed at the beginning,
This is followed by "observation time," followed by "water level data" in the order that matches the management order of the definition file 40, and then "water level data" that matches the management order of the definition file 40.
It is indicated by the order of "flow rate data". From now on, when the latest management information of the definition file 40 is "version 1", the detected process data will be stored in 10 consecutive locations in addition to the water level data stored in 5 locations, as shown in FIG. 4(a). However, when the latest management information of the definition file 40 is "version 2", the detected process data is stored in six locations as shown in FIG. 4(b). Following the storage of the water level data, the flow rate data of 10 locations is stored.

In this way, when the number of measurement points increases due to an increase in the number of process terminals 10 due to an increase in equipment, the storage address of the data file 30 changes. If the stored process data is read from the data file 30 in accordance with the address information up to that point, incorrect process data will be read. Therefore, in the past, when there was an increase in equipment, it was necessary to change the file access routine to the data file 30. In contrast, in the present invention, when reading process data from the data file 30, the definition file 40
Reads the management information corresponding to the version number information attached to the process data from , finds the correct measurement unit according to the read management information, finds the correct storage address, and reads the correct process data information. It is structured as follows.

FIG. 5 shows a flowchart of the present invention for carrying out such processing.

As shown in this flowchart, the data file 30
When there are continuous requests for process data stored in
The file access routine that executes the successive processing first obtains a data file at a specified time from the data file 30, and then obtains a definition file corresponding to the version number information attached to this data file from the definition file 40. , that is, acquire management information. When reading the water level data, it is determined whether the data number of the water level data is smaller than the number of water level data in the definition file. If it is smaller, there is correct water level data, so the data position is the first water level data ( The data address of the water level data is calculated by adding (water level data length) x (data number - 1), which is the data length up to the water level data of that data number, to To,
This is process data for acquiring the process data stored at that data address, and then notifying the data processing program that has made repeated requests using the correct measurement unit determined from the acquired definition file (process data )×(measurement unit) and terminates the process.

Next, when reading the flow rate data, it is determined whether the data number of the flow rate data is smaller than the number of flow rate data in the definition file. If it is smaller, there is correct flow data, so the data position is the first flow rate data By adding (flow rate data length) x (data number - 1), which is the data length up to the flow rate data of that data number, to (version data first child time data length + (water level data length x number of water level data)) , 0th order to find the data address of the flow rate data,
This is process data for acquiring the process data stored at that data address, and then notifying the data processing program that has made repeated requests using the correct measurement unit determined from the acquired definition file (process data )×(measurement unit) and terminates the process.

FIG. 6 shows an example of a printout of process data read out in this way. In this example, the time (13
It is assumed that there was an update process from "version number 1" to "version number 2" between 00:00 and 14:00.As shown in this figure, from 00:00 to 13:00 ``Water level data 6'' at this time will be notified as ``no corresponding data'' in the process of the above-described flowchart, and will therefore be excluded from printing and tabulation processing.

Also, between 13:00 and 14:00, there will be a gap in the process data of the flow rate data IOJ due to the change in measurement unit, but it will be automatically converted to the correct physical quantity and read out by the process in the above flowchart. Therefore, there is no need to perform any special processing during printing or tabulation processing.

Although the illustrated embodiments have been described above, the present invention is not limited thereto.For example, the process equipment is not limited to water supply equipment.

〔Effect of the invention〕

As described above, according to the present invention, there is provided a process data measurement/monitoring device that stores and utilizes process data collected according to a predetermined time rule in a data file, in which successive processing of the stored process data is performed. , the process data will be executed accurately according to the file format information and process data attribute information at the time of collection, so even if the process equipment is expanded or changed, the file access routine will not need to be changed ( ,
This allows you to read out the correct process data information as is.

[Brief explanation of the drawing]

Figure 1 is a diagram of the principle configuration of the present invention, Figure 2 is a system configuration diagram of the present invention, Figure 3 is an explanatory diagram of the storage contents of a definition file, Figure 4 is an explanatory diagram of the storage contents of a data file, and Figure 5 is an illustration of the storage contents of a data file. The figure is a flowchart executed by the present invention, and FIG. 6 is an explanatory diagram of process data to be printed out. In the figure, l is the measurement monitoring device, 10 is the process terminal, 11 is the definition file section, 12 is the data file section, 20 is the measurement and monitoring device main body, 21 is the file access section, 22 is the process data writing section, and 23 is the process Data series part, 24
25 is a data processing unit, 26 is a definition file update unit, 30 is a data file, and 40 is a definition file.

Claims (1)

[Claims] File access unit (21) and data file (30)
), the file access unit (21) collects process data detected by the plurality of process terminals (10) according to a predetermined time rule, and sequentially writes and saves the data in the data file (30). At the same time, in the process data measurement and monitoring device that reads and outputs the time-series data of the stored process data according to a request, the data file (30)
A definition file (40) that manages the file format information that defines the file format of the process data and the attribute information of the process data that is sent, and a new file every time there is a change in the management information of the definition file (40). The file access unit (21) includes a definition file update unit (26) that stores management information together with its version information in the definition file (40), and the file access unit (21) stores process data in the data file (30). When writing, the version information of the latest management information is added and written, and when reading process data from the data file (30), the version information attached to the process data from the definition file (40) is processed. What is claimed is: 1. A process data measurement and monitoring device characterized by reading out management information corresponding to a process data and performing processing to read out correct process data information in accordance with the management information.