JP3223675B2 - Data collection processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of information processing apparatuses which are connected via a network, a higher-level information processing apparatus collects data from a lower-level information processing apparatus, and converts the data as data handled by the higher-level information processing apparatus. And a data collection processing device for performing and storing the data.

[0002]

2. Description of the Related Art In a production line or the like, a higher-level information processing apparatus controls a lower-level information processing apparatus which controls production equipment in a production process, such as equipment failure occurrence data and production tact data. There is a system that obtains various data and manages and operates the production line.

In such a system, various data sent from a lower-level information processing device is data such as a numerical value or a character string (hereinafter, referred to as physical data). Is difficult to handle in data processing such as evaluation and analysis of data collected for use in management and operation. Therefore, in order to easily handle the collected physical data from the lower-level information processing device in data processing such as evaluation analysis, the data is converted into data labeled with character strings (hereinafter, referred to as logical data) and stored. Is done.

FIG. 8 shows a system using a conventional data collection processing device for collecting physical data and performing a conversion process on the collected physical data as logical data which can be easily handled. This system has a plurality of application software 10 for performing evaluation and analysis of collected data in a workstation 30 which is an information processing apparatus positioned at a higher rank, and one of the application software 10 is executed as necessary. The management of the production equipment is performed by data from the lower device 40, which is an information processing device located at a lower level.

The configuration of the conventional data collection processing device 20 in the workstation 30 includes a communication driver 11 for collecting physical data sent from a lower device 40 located below the workstation 30, a collected physical data And a logical data table 13 storing a logical data table for associating all logical names used by the plurality of application software 10 at the time of data request with collected physical data. A logical developing unit 14 for creating logical data from physical data according to a logical data table
A logical data file 15 for storing logical data;
A display condition table 16 in which a display condition table for each application software 10 is stored; and an application software 10 being executed based on the display condition table.
Comprises a logical access search unit 17 that searches for data requested by a logical name from the logical data file 15 and returns the requested data to the application software 10.

In the system using the conventional data collection processing device configured as described above, the collected physical data is requested by the application software 10 in the workstation 30 to execute a data request by a logical name. Each time, the data in the display condition table is retrieved from the logical data file 15 and returned to the application software 10.

[0007]

However, when such a conventional data collection processing device 20 is used,
Of the plurality of application software 10, all the logical data other than the logical data required by the one application software 10 being executed are also stored together in one logical data file 15. Therefore, there is a problem that it takes time to search for data requested by the application software 10 being executed.

In particular, a plurality of application softwares 10
In the case where the number of the application software 10 is large, the data collected for the application software 10 that is unnecessary and not necessary for the running application software 10 is smaller than the data required for the application software 10 that is running. Is searched for the requested data from the logical data file in which many are stored, and more search time is required.

Accordingly, an object of the present invention is to reduce, among data collected and stored from a lower-level information processing apparatus, data requested by application software running in a higher-level information processing apparatus for a shorter time. The present invention provides a data collection processing device that can be searched by using the data collection processing device.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an information processing apparatus in which a higher-level information processing apparatus collects data from a lower-level information processing apparatus and collects the collected data. A data collection processing device that converts and stores logical data used by a plurality of application software executed in the application software, wherein the logical data is associated with each application software; Used by
Multiple storage of data for each application software
A plurality of logical data storage means;
Of the currently running application software
Startup status of application software to monitor what it is
And checking means, converts the data the collected to the logical data, based on the converted the logic data to the logic data corresponding means, and separated for each individual application software, when stored in the logical data storage means together
In addition, the collected data is stored in the application software.
Determined to be currently running by the running status check means
If the application software is
Priority is given to logical data obtained by converting the collected data.
A logical development separating means for憶updating, from said plurality of logical data storage device, among the plurality of application software, the application software running state check hand
Applications that the stage determines are currently running
Select a logical data storage means for the logical data Yonsofuto is requesting is stored, by searching the logical data requested from the logical data storage means selected,
And a logical data search means for returning to the running application software.

[0011]

The data collection processing apparatus of the present invention configured as described above converts logical data required by each application software of a plurality of application softwares included in a host information processing apparatus into each application software. According to the logical data correspondence means to be associated, the collected physical data is converted into logical data by associating the collected physical data with each individual application software by the logical expansion / separation processing means. It is stored in the storage means.

When retrieving logical data requested by the running application software, the logical data retrieving means detects the logical data storing means storing the requested logical data by the logical data corresponding means. Then, the requested logical data is searched from the logical data storage means storing only the logical data required by the application software being executed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. In the attached drawings, components having the same function are denoted by the same reference numerals, and description thereof is omitted. In the drawings, application software is abbreviated as an application.

FIG. 1 is a diagram showing an example of a system using a data collection processing device according to the present invention.

In this system, a data collection processing device according to the present invention is a lower-level information processing device provided in a workstation 30 as an upper-level information processing device and connected by a network, for example, a PL.
It is used to collect data from a lower device 40 such as a C (programmable controller).

The workstation 30 has a plurality of application softwares A to Z. When necessary, one of the application softwares 10 is executed, and each of the lower-level devices 40 is executed by using data collected from the lower-level devices 40. Monitor the production equipment (not shown) controlled by the control unit.

The configuration of the data collection processing device 1 in the workstation 30 is as follows: a communication driver 11, a physical data file 12, a logical data table 13, a display condition table 16, and logical data are stored for each application software. According to the logical data creation determination table 2 storing the associated logical data creation determination table and the logical data table and the logical data creation determination table, physical data is converted into logical data, and the converted logical data is separated for each application software. A logical development / separation processing unit 3 which stores logical data separated for each application software; a plurality of logical data files 4 for storing logical data separated by each application software; Application software 10 retrieved from logical data file 4 corresponding to, running application software 1
A logical access search unit 5 returning to 0, an application software activation status check unit 21 for monitoring the activation status of the application software, and an application software activation status history file 22 for accumulating and storing the check results of the application software activation status check unit 21 And

Hereinafter, the function of each unit in the data collection processing device configured as described above will be described.

First, the logical data creation judgment table 2
This is a file storing a logical data creation determination table serving as logical data correspondence means.

The logical data creation judgment table 2 associates each logical data with a logical name required by which application software 10 and the logical data file 4 in which the logical data is filed. Things.

FIG. 2 shows an example of the logical data creation judgment table.
-T0 is what the application software A requires,
It can be seen that the name of the logical data file storing this is ldatf_1 which stores only the logical data requested by the application software A. Similarly, it is understood that the logical data MC1-T1 is requested by the application software B and is stored in the logical data file ldatf_2, and the logical data MC1-T2 is requested by the application software A and the logical data file ldatf_1 It can be seen that it is stored in Also, the logical data MC1-T3 and MC2-T0
Is data shared by a plurality of application software 10 and is a shared logical data file ldatf_a.
It can be seen that it is stored in

Next, the logical development / separation processing unit 3 is a logical development / separation processing means. Here, first, the communication driver 11 collects physical data and updates the physical data of the physical data file 12. With that as a trigger,
The collected physical data stored in the physical data file 12 is converted into logical data with reference to a logical data table described later. Then, referring to the logical data creation determination table, it is determined which application software 10 uses the converted logical data and which logical data file 4 stores the converted logical data. The logical data of a logical data file 4 described later, which is divided for each application software 10, is updated.

The logical data table 13 is a conventionally used logical data table, for example, as shown in FIG. 3, in which all logical names used by a plurality of application software 10 for data requests are shown. Is associated with the physical data name stored in the physical data file 12, and further includes the data type of the physical data, the location of the file containing the physical data, and the file name. Here, the location of the file is usually necessary because a physical data file is classified and stored in a plurality of arbitrarily divided files. Not needed for one.

Next, the logical data file 4 is a logical data storage means, and a plurality of application software 10
In contrast, the number of the application software is equal to or greater than the number of the application software, and the logical data required only by the application software 10 is stored for each individual application software 10. Further, logical data shared by a plurality of application software 10 may have a shared file or shared logical data may be stored in all logical data files. In the case shown in the figure, the logical data file 4
Indicates application software A to Z, and the shared file is omitted.

Next, the logical access search unit 5 is a logical data search unit, which reads the display condition table 16 and the logical data management table 18 and sends the currently executed application from the application software running state check unit 21 described later. From the software information, the name of the logical data file in which the logical data requested by the application software being executed is obtained, and the requested logical data is retrieved from the corresponding logical data file 4, and the display conditions described later are set. Is returned to the requested application software 10.

The display condition table 16 is conventionally used. For example, as shown in FIG. 4, the screen No. according to the determined screen setting and the logical data of the display condition corresponding to the screen setting are stored. Are associated with each other.
The logical data management table 18 is created by the logical developing unit 3 and associates application software with a logical data file for the application software. For example, as shown in FIG. Is supported.

Here, in this embodiment, the display condition is
On-change that indicates that the data of the requested logical name is different from the previous one, cyclic that updates and displays the data every certain time, and data request without display from application software Request.

Further, in this embodiment, the application
An application software activation status check unit 21 for monitoring the activation status of application software, which is an application software activation status check unit, monitors what application software is currently being executed and performs logical development.
The separation processing unit 3 and the logical access search unit 5 are instructed what the currently executing application software is, and the check results of the application software activation status check unit 21 are accumulated to accumulate the application software activation status. It is stored in the history file 22, and the activation frequency of the application software is obtained.

In this embodiment, the logical data table and the logical data creation judgment table are independent of each other. However, in the logical data table, the logical data division and the logical data file name in the logical data creation judgment table are added. Corresponding to each logical data,
It may be supplied as one table.

Hereinafter, the operation of the system to which the data collection processing device of the present invention configured as described above is applied will be described. First, for data storage, the communication driver 11 collects the physical data of the lower device 40 and stores it in the physical data file 12. And the communication driver 11
Is notified to the logical development / separation processing unit 3 that the physical data has been updated from the logical development / separation processing unit 3
Thus, the physical data is converted into logical data, divided for each application software based on the logical data creation determination table, and stored in a plurality of logical data files 4 provided corresponding to each application software.

Then, when the application software is executed, and the logical access search unit 5 receives the request for the logical data from the application software being executed, the logical access search unit 5 searches the logical data file 4 having the requested logical data and sets the display condition. The returned logical data is returned to the application software.

Hereinafter, this operation will be described with reference to a flowchart.

FIG. 6 is a flowchart for explaining a routine for storing collected data. First, triggered by the update of the physical data from the communication driver 11, the logical expansion separation processing unit 3 reads the updated physical data from the physical data file 12 (S
1). Next, a logical name corresponding to the read physical data is retrieved from the logical data table to obtain a logical data name to be updated (S2). Further, a logical data file corresponding to the logical data is obtained from the logical data creation determination table. A name is obtained (S3). Next, the application software running status check unit 21 determines whether the physical data to be updated is that of the currently running application software (S4), and immediately updates the logical data if it is running. (S6), if not activated, the logical data is updated if it is detected as priority processing data (S6), and if it is not priority processing data, another running process is executed. After that, the logical data is updated (S6). In this way, if there is another processing being executed, the processing being executed is continued unless it is necessary to update the logical data in a hurry, and the logical data is updated after the processing is completed.

In this embodiment, the logical data (common data) commonly used by a plurality of application software is stored in a logical data file for each application software, and the logical data file for each application software is stored in the logical data file. All of the logical data thus created is present in the logical data file for the application software to reduce the access time. However, since the same data (common data) exists in a plurality of files, if the capacity of the storage medium in which the logical data file is located is limited, this common data is combined into one and created as a common data file. Alternatively, only the data used by the application software may be stored in the logical data file for each application software.

FIG. 7 is a flowchart for explaining a routine for retrieving logical data in response to a request for logical data from application software being executed.

First, upon receiving a data request from the application software being executed, the logical access search unit 5
The display condition of the requested logical data is determined from the display condition table (S10). When it is determined that the data is on-change, the logical name of the changed data is acquired from the logical development / separation unit 3 (S11). When it is determined that the data is cyclic, the data is updated from the display condition table. The logical data name that has reached the time is acquired (S12), and when it is determined that the request is a request, the logical name requested from the application software 10 is acquired (S13).

Next, the logical access search unit 5 obtains what the currently executing application software is from the application software activation status checking unit 21 (S
14) The logical data file name for the application software being executed is acquired from the logical data management table 18 (S15), and the requested logical data is retrieved from the corresponding logical data file 4 (S16). Then, the retrieved logical data is returned to the requested application software (S17).

As described above, when there is a common data file in which only common data is collected, in S16, after searching for logical data for each application software, the file of this common data is searched.

As described above, the search for the requested logical data involves searching for the logical data from the logical data file dedicated to the application software requesting the data. Shorter.

[0040]

As described above, the data collection processing apparatus of the present invention is provided in correspondence with each of a plurality of application software when converting collected physical data into logical data and storing the converted data in a file. the logical data storage means, together with the stores only the logical data required by each application software, when updating data
Data from the currently running application software
Because we decided to update the memory first,
Target the logical data required by each application software.
Make the storage, can be updated, the other hand, during the search of the logical data by the data request from the application software currently running, it requires less number of data to be searched for the data request, from the data request The response time until the requested data is returned is shortened.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an example of a data collection device of the present invention.

FIG. 2 is a diagram showing an example of a logical data creation determination table used for the data collection device of the present invention.

FIG. 3 is a diagram illustrating an example of a logical data table used in the data collection device.

FIG. 4 is a diagram illustrating an example of a display condition table used in the data collection device.

FIG. 5 is a flowchart illustrating a routine for storing collected data of the data collection device of the present invention.

FIG. 6 is a diagram showing an example of a logical data management table used in the data collection device of the present invention.

FIG. 7 is a flowchart for explaining a data search routine of the data collection device of the present invention.

FIG. 8 is a block diagram illustrating an example of a conventional data collection device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Data collection device, 2 ... Logical data creation judgment table, 3 ... Logical development separation processing part, 4 ... Logical data file, 5 ... Logical access search part.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G06F 17/40 G06F 17/60

Claims (1)

(57) [Claims] An information processing apparatus located at a higher level collects data from an information processing apparatus located at a lower level, and converts the collected data into logical data used by a plurality of application software executed in the upper level information processing apparatus. A data collection processing device for storing the logical data, the logical data corresponding means for associating the logical data with each application software, and data used by the plurality of application software.
Multiple logical data stored for each application software
Data storage means, of the plurality of application software,
An application that monitors what the application software is
Convert the application software activated state checking means, the data the collected to the logical data, based on the converted the logic data to the logic data corresponding means,
Separately for each application software ,
In addition to storing the data in the data storage means,
Is the application software startup status check
Applications that the stage determines are currently running
In the case of software, the collected data
A logical development separating means for the logical data preferentially store updates converts, from said plurality of logical data storage device, among the plurality of application software, the application software electromotive
It is determined by the operating status check
Select a logical data storage means for said logic de <br/> over data that the application software is requesting that is stored, the logic de <br/> requested from the logical data storage means selected A data retrieval unit for retrieving data and returning it to the application software being executed .