JP3298950B2 - Information collection control equipment for production equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information collecting apparatus for a production facility which can efficiently collect information from a plurality of production facilities installed in a factory or the like.

[0002]

2. Description of the Related Art FIG. 6 shows an example of a conventional information collection control device for a production facility.

The information collection control device includes device drivers 13, 14, 1 provided to collect information from a plurality of terminal devices (for example, programmable controllers) 10, 11, 12 constituting a production facility.
5, a collection mode setting unit 17 for setting a mode of information collection set by the operator, for example, a fixed interval, a different event when an event occurs, and the like, and a setting content of the collection mode setting unit 17 in the registration table 18. An information collection control unit 19 that registers and outputs specific commands for each of the device drivers 13, 14, and 15 based on the registered mode.

The respective device drivers 13, 1
4, 15 are connected terminal devices 10, 11, 12
Are collected based on the mode registered in the registration table 18. For example, the terminal device 10
Is collected every 10 seconds, other temperature information is collected every 1 second, and other temperature information is collected one hour after the device has been operated. As described above, each piece of information is collected based on the registered mode. In addition,
These device drivers 13, 14, 15 not only collect information, but also each terminal device 10, 11, 12,
And the like. Also, the device driver 13,
Reference numerals 14 and 15 serve as a medium for connecting the application software 20 and 21 in the information collection control device and a database (not shown) to each of the terminal devices 10, 11 and 12, and are created according to the model of each terminal device. Is done.

[0005]

However, in the conventional information collection control device having the above configuration, all conditions necessary for information collection, such as the timing of collection and the amount of information, are registered. This work is complicated because it is necessary to register the collection mode, and whether the collection mode registered by the operator's judgment in this way can perform efficient information collection can be performed. There are doubts.

[0006] For example, the above-described registration must be performed for each piece of information to be collected. It is necessary to set for each information such that the information A is a regular collection collected every two seconds, and the information B is an event collection collected only when a certain event occurs. Further, although the event collection is set in the collection mode set in this way, the event occurs more frequently than expected, which leads to deterioration of the collection efficiency, and it is necessary to reset such information to the regular collection later. Such troubles occur.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems of the prior art, and is directed to a production facility in which information from a plurality of production facilities can be efficiently collected by statistical processing performed during the collection. The purpose of the present invention is to provide an information collection control device.

[0008]

According to the present invention, there is provided an information collecting means for collecting various types of information from a plurality of production facilities based on a set information collecting mode. Read the various information collected
And statistical processing of the periodicity of the data generation situation for each information
A statistical processing means for obtaining by, due to the statistical processing unit
Based on the results of statistical processing, the data generation situation has periodicity.
Information obtained by the statistical processing
At regular intervals, the data should be collected periodically during the period
The set of information collection mode, and having a information collection mode setting means for setting the pre-Symbol information collection mode to the event collection for non-periodic information.

[0009]

The information collection control device for a production facility according to the present invention having the above-described structure operates as follows.

The information collecting means collects information input from a plurality of production facilities installed on a production line of a factory, for example, based on a set information collecting mode. Examples of this information collection mode include a regular collection in which the information is collected at regular intervals and an event collection in which the information is collected only when a certain event occurs.

The statistical means statistically processes information from the plurality of production facilities collected by the information collecting means based on a predetermined information collecting mode. This statistical processing is for obtaining the periodicity of the data generation situation of the collected various information.

[0012] Information collection mode setting means set the information collection mode based on the statistical processing result by the statistical processing unit
Set . In other words, in the case of collecting some information, events
Should be collected on a regular basis, should be collected on a regular basis, and
At the time of gathering, the period is determined.

[0013]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a production equipment information collection control device according to the present invention. The terminal devices 1A and 1B shown in the drawings assume a programmable controller in this embodiment. Information from the terminal devices 1A and 1B is collected by device drivers 2A and 2B provided individually for the terminal devices. Examples of the collected information include detection information such as temperature and pressure of various sensors connected to the terminal devices 1A and 1B and information on occurrence of abnormality of the terminal device itself. Communication records of information collected by these device drivers 2A and 2B are stored in a data communication result recording unit 3A set in the database 3. The device drivers 2A and 2B not only take charge of collecting such information, but also control the operation of the terminal devices 1A and 1B based on control data stored in the database 3 and given through the control bus. It has become. The communication result data stored in the data communication result recording unit 3A is as shown in FIG. That is, the setting number of the terminal device, the communication time by the device, and the communication amount.

The data statistical analysis unit 4 reads the communication result data stored in the data communication result recording unit 3A, performs a statistical analysis process on the read communication result data, and performs address analysis as shown in FIG. Find the data generation situation for each. In other words, the situation of occurrence for each piece of information is required. The collection table automatic creation unit 5 inputs the data generation situation created as shown in FIG.
Create a collection table as shown in. That is, a collection table in which the collection type, the collection timing, the address in the database where data is stored, the amount of data, and the like which are most efficient for data collection are automatically determined and created. Elements constituting the registration of the collection table are automatically created by the collection table automatic creation unit 5 based on a command from the terminal device A. For example, based on the results of the statistical analysis, it is automatically determined whether the collection type is suitable for scheduled collection or event collection, and as to the collection timing, how many seconds after the initial data reception and how often should be collected. Judgment is made, and a collection table is created and written in the database. Needless to say, the criterion for selection of the scheduled collection and the event collection required for creating the collection table is programmed in the collection table automatic creation unit 5 in advance.

The collection table created in this way is recorded in the collection table 3B in the database 3 as a collection mode, and future information collection from the terminal devices 1A and 1B is stored in the collection table 3B. This is performed based on the data in the collection table, that is, the information collection mode.

The collection of information from the terminal devices 1A and 1B is always performed during the operation of the information collection control device of the present invention.
A or 1B is performed based on a user data analysis command output by an operator's command. Therefore, the data statistical analysis unit 4 and the collection table automatic analysis unit 5 operate from the time when the data analysis command is output from the device driver in accordance with the user data analysis command to the end of data analysis, and continue to operate at all times. Not necessarily.

The information collection control device of the present invention having the above-described configuration operates as follows based on the flowchart shown in FIG. Prior to the detailed description of the operation, the general operation of the present apparatus will be described.

When the apparatus is powered on and starts operating, each device driver controls the operation of each connected terminal apparatus according to the control data stored in the database 3 to operate the production machine. .
At the same time, each device driver reads the information collection mode written in the collection table, and collects data from the terminal device according to the information collection mode. The collected data is sequentially stored in the data communication result recording unit 3A.
Is accumulated in If a user analysis command by an operator command is output from the terminal device while such data collection is being performed, a data analysis command is output from the device driver that has received the command, and the data analysis command is output by the analysis command. The statistical analysis unit 4 reads all data stored in the data communication result recording unit 3A and performs a statistical analysis on all data as shown in FIG. The collection table automatic creation unit 5 creates a collection table as shown in FIG. 5 based on the analysis result.

This is because, for example, in the analysis result shown in FIG. 4, if the information assigned to addresses 01 to 06 is of the event collection type, the portion surrounded by the rectangle shown in FIG. Nevertheless, it can be seen that the situation in which the data is generated has a substantially constant period. When such an analysis result is obtained, the collection table automatic creation unit 5 changes the data collection mode of the addresses 03 to 05 shown in FIG. 4 from event collection to scheduled collection based on the analysis result, and A new collection table is created in which data indicating that the collection cycle is to be performed in a 2-second cycle from 2 seconds to 20 seconds after the start of the collection. This new collection table will be replaced with the collection table stored in the database 3.

Next, the operation of the apparatus of the present invention will be described in more detail. First, when a user's analysis command is output from any of the terminal devices 1A or 1B, the data statistical analysis unit 4 stores the data stored in the data communication result recording unit 3A before the output of the analysis command. Reading is performed for each device number (S1). Next, the read data is arranged for each address, and it is determined whether data having the same content exists at the same address (S2). If the data is not the same, the data is compared with the next data (S3). ). In other words, this loop detects whether the same data exists at the same address among the read data. In this comparison, if the same data exists, the occurrence interval is calculated from the communication time of the communication result data shown in FIG. 3 (S4). The above processing is performed on all the read data (S5). In the above processing, the data statistical analysis unit 4 grasps the communication results for each address and conceptually creates a table as shown in FIG. 4 (S6).

From the data thus created,
A collection table as shown in FIG. 5 is created. This collection table shows which data from which addresses should be collected on a regular basis and how long the collection cycle should be.
It is created according to a program that has been input in advance for creating this table. In the example shown in FIG.
If the information assigned from 1 to 06 is the event collection type, the boxed portion in the figure indicates that the data generation status is substantially constant, despite the event collection. Recognizing this, the data collection mode of addresses 03 to 05 shown in FIG. 4 is changed from event collection to scheduled collection (S7), and the collection cycle is changed from 2 seconds to 20 seconds after the start of collection. 2
A new collection table in which data to be performed in a second cycle is described is created (S8). The collection table thus created is stored in the collection table 3B of the database 3. When this storage is performed, all the contents of the previous collection table stored in the collection table 3B are cleared.

As described above, in the present embodiment, an example has been described in which the information acquisition mode initially set to event collection as the information collection mode is changed to periodic collection and the collection cycle is also calculated. By performing such processing, the optimal information collection mode is gradually created each time an analysis command is output from the beginning when the information collection setting is incomplete, and the information collection is optimized. Automatically.

The present invention further provides, in addition to the above-described embodiments,
By performing the above-mentioned processing on the contents of the data collected at the scheduled time, it is possible to reset the optimal cycle. Processing such as changing to event collection can be performed. If such processing is performed automatically, it is extreme, but even if the initial information collection mode is appropriately set, the periodic collection, the event collection, the periodic collection, and the like are automatically set even if the initial information collection mode is appropriately set. It will be set optimally while learning.

[0025]

As described above, according to the present invention,
The information collected according to the periodicity of changes in the collected data
Since the collection mode was set, for example, information
Collection of information set for event collection as the collection mode
Change collection format to scheduled collection and calculate the collection cycle
On the contrary, the information collected on a timely basis
Or have it collected at the scheduled time.
For data that does not change at all
From event collection to event collection.
The regular collection, the event collection, the periodic collection cycle, etc.
The optimum setting will be made while learning automatically.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of an information collection control device of a production facility according to the present invention.

FIG. 2 is a flowchart showing an operation of the apparatus shown in FIG.

FIG. 3 is a diagram illustrating an example of communication result data stored in a data communication recording unit illustrated in FIG. 1;

FIG. 4 is a conceptual diagram showing data after being statistically processed by a data statistical analysis unit shown in FIG. 1;

FIG. 5 is a diagram showing an example of a table stored in a collection table shown in FIG.

FIG. 6 is a block diagram showing a schematic configuration of a conventional information collection control device of a production facility.

[Explanation of symbols]

 2A, 2B: Device driver (information collecting means) 3A: Data communication result recording unit 4: Data statistical analysis unit (statistical processing unit) 5: Collection table automatic creation unit (information collection mode generation unit)

Claims (1)

(57) [Claims] An information collecting means for collecting various information from a plurality of production facilities based on a set information collecting mode, and reading the various information collected by the information collecting means.
And statistical processing of the periodicity of the data generation situation for each piece of information.
A statistical processing means for obtaining a sense, based on the result of the statistical processing of this statistical processing means, data
For information with periodicity in the data generation situation,
The periodicity obtained by the result of the
The information collection mode is set to be on- time collection during
So as to events collected for no periodic information
And the information collection mode setting means for setting the previous SL information collection aspects,
An information collection control device for a production facility, comprising: