KR101430316B1 - Data analysys apparatus - Google Patents

Abstract

assignment
Information necessary for specifying a re-delay factor candidate is displayed on a predetermined display terminal, and a data analyzing device that can be provided to the operator is obtained.
Solution
The data analyzing apparatus includes a data collecting device 17, a data storing device 18, and a re-conveyance history editing device 19. [ The data collection device 17 collects the plant data in a time series. The data accumulator 18 accumulates the plant data collected by the data collector 17. The re-conveyance history editing device 19 causes the display terminal 22 to display information on the conveyance history of the ashes conveyed by the conveying device. The re-conveyance history editing device 19 includes re-position calculating means 26, re-position actual value obtaining means 27, and display control means 28. [ The display control means 28 causes the display terminal 22 to display the calculated value calculated by the repositioning calculating means 26 and the actual value acquired by the repositioning actual value obtaining means 27 side by side.

Description

{DATA ANALYSYS APPARATUS}

The present invention relates to a data analyzing apparatus used for analyzing data in an industrial plant.

In industrial plants, various plant data are collected and accumulated for the purpose of improving productivity and improving product quality. When any investigation is required, data items necessary for the investigation are selected from among the accumulated plant data, and the factors are analyzed.

For example, Patent Document 1 below proposes an apparatus for automatically calculating a combination of data items highly influential on product quality and notifying the result of the calculation.

Patent Document 1: Japanese Patent Application Laid-Open No. 2008-146621

In a steel plant, for example, a thick plate rolling plant (line), shortening the non-rolling time greatly contributes to improvement in productivity. The non-rolling time refers to the time during which the rolling by the rolling mill is not performed until the rolling by the rolling mill is completed after the rolling of the rolled material is started by the rolling mill. For example, the time for electrostatic reversal or reversal of the rolling direction, or the time for which the rolled material is retracted (placed at a position away from the rolling mill) in order to lower the temperature of the rolled material corresponds to the non-rolling time .

In order to shorten the non-rolling time, it is necessary to investigate a factor of delay of the passing time of the rolled material and a factor of delay of the time between the preceding material and the ash between the material and the ash. Conventionally, when conducting the above investigation, necessary information is appropriately collected from various apparatuses, and calculated values and actual values of rolling time and cost rolling time are obtained for each rolling path. When the difference (difference in time) between the calculated value and the actual value is large, the operator considers the combination of various information, graphically displays the calculated value and actual value, identifies the delay factor of each control start timing from the correlation of data have.

In such an investigation method, the magnitude of the time difference between the computed value and the actual value depends on the capability of the operator, and there is a possibility that the delayed portion is overlooked. Further, the management of information is not unified in the plant, the selection range of the target data is limited, and the delay factor can not be specified. Particularly, when a plurality of rolled materials are present on the line, or when the irradiation range extends widely between rolling facilities and leveler facilities, it has been difficult to specify the delay factors.

Further, even in the apparatus described in Patent Document 1, it has been difficult to precisely specify the delay factor of the pressure-sensitive expanding material in the plate rolling plant (line).

SUMMARY OF THE INVENTION The present invention has been achieved in order to solve the above-described problems, and an object of the present invention is to provide a data interpretation device capable of displaying information necessary for specifying a delay factor candidate of a re- will be.

The data analyzing apparatus according to the present invention is an industrial plant for producing a product using a plurality of devices while conveying a predetermined material by a conveying device based on a calculation result of a process calculator, A data accumulating device for accumulating plant data collected by the data collecting device; and a data storing device for storing information about the conveying history of the ashes conveyed by the conveying device, And a re-transport history editing device for displaying the re-transport history editing device on the display terminal of the re-transport history editing device. The re-transport history editing device uses the data from the process calculator among the plant data stored in the data storage device, From the plant data stored in the data accumulating device, A display control means for displaying the calculated values calculated by the repositioning calculation means and the actual values acquired by the repositioning actual value acquisition means in parallel on the display terminal Respectively.

With the data analyzing apparatus according to the present invention, it is possible to display information necessary for specifying a delay factor candidate of a re-delay factor on a predetermined display terminal. The operator can specify the delay factor of the replay by analyzing the information displayed on the display terminal.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing a configuration of a data analyzing apparatus according to a first embodiment of the present invention. Fig.
Fig. 2 is a schematic diagram of an industrial plant to which the data analyzing apparatus shown in Fig. 1 is applied; Fig.
3 is a diagram showing a configuration of a main part of the data analyzing apparatus shown in Fig.
Fig. 4 is a diagram for explaining the function of the data analyzing apparatus shown in Fig. 1; Fig.
5 is a diagram for explaining a function of the data analyzing apparatus shown in Fig.
6 is a diagram showing a screen example of a display terminal;

The present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same or equivalent parts are denoted by the same reference numerals. The redundant description is appropriately simplified or omitted.

Embodiment Mode 1.

1 is a diagram showing a configuration of a data analyzing apparatus according to Embodiment 1 of the present invention.

This data interpretation apparatus is an apparatus used for analyzing data in an industrial plant. In an industrial plant, a predetermined product (including a semi-finished product) is manufactured using a plurality of devices while a predetermined material is conveyed by a conveying device. Hereinafter, a case where the present data analyzing apparatus is applied to the steel plate rolling line of steel will be described in detail. Description of the application to other industrial plants is omitted.

The industrial plant includes a process calculator 1, a process controller 2, a drive means (electric motor / drive device etc.) 3, a process sensor 4, and an operator control terminal 5.

The rolling pass time delay analyzing device 6 constituting the main part of the present invention is connected to the process calculator 1 and the operator operating terminal 5 via a predetermined information LAN 7. [ The rolling pass time delay analyzing device 6 is connected to the process calculator 1, the process controller 2, the drive means 3 and the process sensor 4 via a predetermined control LAN 8. [

Fig. 2 is an outline plan of an industrial plant to which the data analyzing apparatus shown in Fig. 1 is applied.

Fig. 2 shows a steel plate rolling line as an example of an industrial plant. The operation of each device in the plate rolling line is appropriately controlled on the basis of the calculation result of the process calculator 1. [

In a steel plate rolling line, a slab is extracted on a line from one or a plurality of heating furnaces (9). The slab extracted from the heating furnace 9 is conveyed by a conveying device (not shown). The conveying apparatus includes, for example, a plurality of rollers (roller tables: not shown). By appropriately controlling the rotational direction and rotational speed of the roller, the slab carried on the roller moves in a predetermined direction and speed.

The slab extracted from the heating furnace 9 is subjected to rough rolling by a coarse rolling mill 10 and then subjected to finish rolling by a finishing mill 11. (Hereinafter also simply referred to as " ash ") passes through the rough rolling mill 10 for about three to four times, for example. The rolled material passes through the finishing mill 11 for about 10 to 20 times, for example. Reference numeral 12 denotes a thermometer provided on the upstream side and the downstream side of the finishing mill 11. Reference numeral 13 denotes side guides (front side side guides and rear side side guides) provided on the upstream side and the downstream side of the finishing mill 11.

When the finish rolling by the finishing mill 11 is completed, the material is water-cooled by the accelerated cooling device 14 and the temperature is adjusted. Thereafter, the ash is leveled by the leveler (machine) 15 and air-cooled by the cooling bed (CB) The air-cooled material in the cooling bed 16 is conveyed to a downstream process by a conveying device after flatness is measured by a flatness meter.

The rolling pass time delay analyzing device 6 is a device for collecting, accumulating and processing plant data from a plurality of devices constituting an industrial plant (for example, a heavy plate rolling line shown in Fig. 2) will be. The rolling pass time delay analyzing device 6 manages the plant data in the industrial plant. The rolling pass time delay analyzing device 6 includes a data collecting device 17, a data accumulating device 18, a re-conveyance history editing device 19, a designated area enlarging display device 20, a plant data editing device 21, A display terminal 22, a storage device 23, and a storage device 24.

The data collection device 17 collects plant data from each device used as an industrial plant. As described above, each device of the industrial plant is connected to a predetermined communication network (in this embodiment, the information LAN 7 and the control LAN 8). The data collection device (17) collects all the plant data collectable through the communication network in a time series.

The information LAN 7 is an information network for operation and product manufacturing. The data collecting device 17 collects information on the operation and the product from the process calculator 1 via the information LAN 7. [ For example, the data collecting apparatus 17 acquires, from the process calculator 1 via the information LAN 7, a product manufacturing instruction, control amount setting of each apparatus, product quality performance, and the like as plant data, Event). The data collecting device 17 also collects the operation history from the operator operating terminal 5 as the plant data via the information LAN 7.

The data collecting apparatus 17 collects data that changes in real time as plant data from the process controller 2, the drive means 3 and the process sensor 4 via the control LAN 8. [

The control LAN 8 is a process control network that provides a data area shared between each node of the process calculator 1, the process controller 2, the drive means 3, and the process sensor 4. [ The high speed data area of the control LAN 8 enables data transmission at, for example, a 2 [ms] cycle. The control output of the process controller 2, the control data of the driving means 3 and the measured output value of the process sensor 4 are output to the shared data area of the control LAN 8. [ The data collecting device 17 collects all data of the shared data area of the control LAN 8 in accordance with the transmission period.

The data collecting apparatus 17 is composed of one or a plurality of data collecting apparatuses. Since the number and the speed of items of collected plant data are different depending on the scale of the industrial plant, the data collection device 17 is configured in accordance with the arrangement environment.

The data accumulator 18 is constituted by a large-capacity database for accumulating the plant data collected by the data collector 17. The data accumulating device 18 is supplied with various plant data collected by the data collecting device 17 such as control information of each facility, event information, operation history information, alarm information, Is accumulated for a predetermined period of time in a time series.

The capacity required for the data accumulator 18 is determined by, for example, the number of items of the accumulated plant data, the collection period, and the accumulation period. The period during which the data accumulating device 18 accumulates the plant data is, for example, a steel plate rolling line shown in Fig. 2, which takes about three months to six months, considering the production time of the downstream process. This accumulation period can be appropriately changed.

In addition, the data accumulator 18 is provided with a function of retrieving and providing the accumulation data in response to a request from another apparatus in the rolling pass time delay analyzing apparatus 6. [

The re-conveyance history editing device 19 has a function of displaying on the display terminal 22 information (conveyance history information) about the conveyance history of the ashes conveyed by the conveyance device. That is, the operator of the plate rolling line can analyze various data by confirming the display content of the display terminal 22. [

3 is a diagram showing a configuration of a main part of the data analyzing apparatus shown in Fig. Fig. 3 shows details of the re-transfer history editing device 19. As shown in Fig. The re-conveyance history editing device 19 includes a section setting means 25, a re-position calculating means 26, a re-position actual value obtaining means 27, a display control means 28, a reference value registering means 29 ).

The section setting means 25 has a function of dividing the entire section (for example, the section from the start of re-extraction to the cooling bed 16 in the case of a thick plate rolling line) into a predetermined plurality of sections Respectively. The section setting means 25 divides the thick plate rolling line into each section (for example, a tracking zone unit) before the rolling facility, after the rolling facility, and after the rolling facility.

The repositioning calculation means 26 is constituted by a means for calculating the position of the ash at the time of transportation with respect to the material carried by the carrying apparatus. The repositioning calculating means 26 calculates the repositioning position for each section divided by the section setting means 25. [

For example, when the operator designates a re-designation from a predetermined input device (not shown), the re-conveyance history editing device 19 extracts information on the conveying history of the specified reel from the data accumulating device 18. [ The conveyance history information extracted by the re-conveyance history editing device 19 from the data accumulating device 18 includes, for example, ON time and OFF time of each position sensor (process sensor 4) on the plate rolling line, (Rolling mill machine 10, finishing mill machine 11)), and the like. The transport history information also includes information about the operation and the product from the process calculator 1 and an operation history from the operator operation terminal 5. [

The repositioning calculating means 26 calculates the position of the designated ash using at least the data from the process calculator 1 among the process data stored in the data accumulating device 18. [ The re-position actual value obtaining means 27 obtains the actual data on the position of the designated reed from the plant data stored in the data storing device 18. [

The display control means (28) has a function of controlling the display of the display terminal (22). When the operator designates the ashes, the display control means 28 outputs the calculated values calculated by the repositioning calculating means 26 and the actual values acquired by the repositioning actual value obtaining means 27 to the display terminal 22 Display them side-by-side on the screen.

Figs. 4 and 5 are diagrams for explaining the functions of the data analyzing apparatus shown in Fig. 1. Fig. Figs. 4 and 5 show an example of display on the display terminal 22. Fig. 4 and 5, the axis of abscissa indicates the moving distance m of the ashes, starting from the extraction end (the tracking start position of the ash) of the heating furnace 9 as a starting point. The vertical axis indicates elapsed time (minutes) starting from the extraction start event of ash.

In the steel plate rolling line of steel, for example, the period from the rolling start event to the rolling completion event is divided into three phases. In the first shaping phase, the rolled material is rolled to a predetermined length. Upon completion of the shaping phase, the rolled material is rotated 90 degrees on the conveying device. When the above-described rotation of the pressure-applying member is completed, the widening (widening) phase starts. In the explosion phase, the rolling is performed so that the width of the pressure-sensitive expandable member becomes a predetermined value. At the end of the burst phase, the rolled material is again rotated 90 degrees on the conveying device. When the above-described rotation of the pressure-applying member is finished, the finishing phase starts. In the finishing phase, the rolled material is further rolled and molded to a desired thickness.

Fig. 4 shows a display example in which there is only one material on the thick-plate rolling line. Fig. 5 shows an example of display in the case where a plurality of materials (for example, two materials) exist on the thick plate rolling line.

The re-position calculating means 26 calculates the time when the re-position calculating means 26 passes directly under the specified re-moving facility (for example, a position sensor or a rolling mill) using the data from the process calculator 1. [ The repositioning calculating means 26 calculates the repositioning calculating means 26 based on, for example, the re-conveying speed (rotation speed and acceleration / deceleration rate of the roller table), the inflow speed and outflow speed of the rolling mill (for example, And the elapsed time or the evacuation time (the time from the definite position to the control target temperature) are used to calculate the passing time immediately under the operating equipment. By this calculation by the repositioning calculation means 26, the rolling time of the ashes and the non-rolling time can be specified.

The display control means 28 connects each time calculated by the repositioning means 26 with a line (dotted lines in Figs. 4 and 5) and outputs the calculated value of the repositioning to the display terminal 22 ). In other words, the display control means 28 graphically displays on the display terminal 22 the relationship between the movement distance of the designated reed and the time required for the movement, using the line passing through the respective times.

The repositioning actual value acquiring means 27 acquires the actual value of the time passed immediately below the specified reworking facility (for example, a position sensor or a rolling mill) by collecting data from the process controller 2, for example . The display control means 28 connects the respective times obtained by the re-position actual value acquiring means 27 with lines (solid lines in Figs. 4 and 5) to determine the actual value of the re-position to the display terminal 22 . In other words, the display control means 28 causes the display terminal 22 to graphically display the relationship between the travel distance of the designated reed and the time required for the movement, using the line passing through the respective times.

At this time, the display control means 28 specifies the time difference between the re-extraction starting event and the rolling start event, and the rolling time from the rolling start event to the rolling completion event and the non-rolling time. The display control means 28 compares the specified time difference with a time difference defined in advance in the operation information item list. When the specified time difference is larger than the defined time difference, for example, when displaying the graph on the display terminal 22, the display control means 28 changes the color of the target display portion. Thereby, the operator who sees the screen of the display terminal 22 can easily recognize that there is a possibility that any abnormality may occur in the site.

The time difference may be, for example, a rolling start event from a re-extraction start event, a rolling start event from a rolling completion event to every rolling phase (molding, explosion, mapping) Information (product dimensions, grade, target temperature, etc.).

The reference value registering means 29 stores the plant data selected by the operator among the plant data stored in the data storing device 18 as a reference value in the storage device 23. [ For example, the reference value registering means 29 registers the manufacturing instruction information of the product, the manufacturing result information of the product, the transfer history information (actual value) of the product, the operation history information, the alarm information, (As a list of re-transfer history reference values), and stores them in the storage device 23.

The display control means 28 displays the calculated value of the repositioning and the actual value of the designated ash when the plant data having the same product specification (product dimensions, steel grade, etc.) as the designated ash is displayed as the reference value in the storage device 23 Quot;) is stored in the memory area. The display control means 28 causes the display terminal 22 to display the information indicating that there is a reference value if plant data of the ashes having the same product specification as the designated material is stored in the storage device 23 as a reference value.

In the plate rolling line, a so-called tandem rolling in which a plurality of materials are alternately rolled is sometimes performed. If the re-position calculating means 26 calculates that there is only one ash on the line when tandem rolling is performed, the time difference between the calculated value of the re-position and the actual value becomes extremely large. Even when display based on such calculation is performed, the operator can not accurately analyze the data.

If the information indicating that there is a reference value is displayed on the display terminal 22, the operator selects the ashes having the same product specification as the designated reference from among the reference values stored in the storage device 23. In this case, the display control means 28 changes the calculated value of the ash calculated by the re-position calculating means 26, and causes the display terminal 22 to display the re-calculated value selected by the operator. That is, the calculation value of the reed selected by the operator and the actual value of the material obtained by the re-position actual value acquiring means 27 are displayed side by side on the display terminal 22. The operator can determine whether or not an abnormality has occurred in the ash by confirming the graph of the corrected calculated value and the graph of the actual value.

The designated section enlargement display device 20 has a function of enlarging and displaying the information on the transport history of the reel on the display terminal 22. [ The designated section magnification display device 20 displays the calculation value calculated by the repositioning calculation means 26 and the actual value acquired by the repositioning actual value acquisition means 27 with a predetermined value, (22). As an interval for carrying out enlarged display on the display terminal 22, for example, the operator can arbitrarily select each section divided by the section setting means 25. [ Further, the operator can select one or a plurality of sections in units of equipment such as a position sensor or each rolling pass.

When the section is designated, the designated section magnification display device 20 re-edits the conveyance history information of the section and displays the edited conveyance history information on the display terminal 22. [ At this time, the designated section magnification display device 20 edits the conveyance history information of the designated section in a separate screen, and the conveyance history information already displayed on the display terminal 22 by the re-conveyance history editing device 19 Overlay display.

6 is a diagram showing a screen example of the display terminal. In FIG. 6, reference symbol D denotes an enlarged display screen of the designated section magnified display device 20. When the section C is selected by the operator, for example, the designated section magnification display device 20 displays the screen D over the already displayed image. At this time, the operator can convert the units of the time axis into units of seconds (s), units of 100 ms, and units of 10 ms, and can further enlarge and reduce the display.

The designated section magnification display device 20 may also have the following functions.

The specified section enlargement display device 20 displays the calculated value calculated by the repositioning calculation means 26 and the actual value acquired by the repositioned actual value acquisition means 27 when the enlarged display on the display terminal 22 is performed And causes the display terminal 22 to display the time difference. For example, the designated section magnification display device 20 displays the difference (difference in time) between the calculated value at the start time of the designated section and the actual value (time difference) and the calculated value at the end time of the designated section and the actual value , And displays it on the display terminal 22. [

Alternatively, when performing enlarged display on the display terminal 22, the designated section magnification display device 20 corrects the calculated value and / or the actual value so that the calculated value at the start time of the designated section becomes the same value as the actual value . For example, the designated section magnification display device 20 moves the line passing through the actual value in parallel to each axis so that the actual value at the start time of the designated section becomes the same value as the calculated value. By performing such correction, it is possible to easily compare the slope of the line passing through the actual value with the slope of the line passing through the calculated value, that is, the comparison of the moving speed of the ashes.

The plant data editing device 21 has a function of displaying the predetermined plant data on the display terminal 22 with respect to the material on which the enlarged display by the designated section enlargement display device 20 is performed. The items of data to be displayed by the plant data editing device 21 are defined in advance in the storage device 24 as a list of operation information items. The plant data editing device 21 is a device for editing the plant information based on the specification of the product (steel type, plate thickness, plate width, length, mismatch temperature, etc.) The control information of the rolling performance (the extraction temperature, the fusing temperature, the plate thickness, the plate width, the length, the load, the temperature, the conveying speed, the slurry speed, the rolling speed, the acceleration / deceleration rate, the kickout amount, And displays it on the display terminal 22.

6 designates an example of the plant data displayed on the display terminal 22 by the plant data editing device 21. In the example shown in Fig. The designated section magnification display device 20 causes the enlarged display screen D to display a button 30 for displaying the details of the information. When the operator clicks the button 30, the plant data editing device 21 causes the display terminal 22 to display predetermined plant data based on the operation information item list.

In the case of the data analyzing apparatus having the above configuration, information necessary for specifying the delay factor candidates for re-use can be displayed on the display terminal 22. The operator can specify the delay factor of the replay by analyzing the information displayed on the display terminal 22. [

1: Process Calculator
2: Process controller
3: driving means
4: Process sensor
5: Operator operating terminal
6: Rolling Pass Time Delay Analyzer
7: Information LAN
8: Control LAN
9: Heating furnace
10: rough rolling mill
11: Finishing mill
12: Thermometer
13: Side guide
14: Accelerated cooling system
15: Leveler
16: Cooling bed
17: Data collection device
18: Data accumulator
19: Retransmission history editing device
20: Specified section enlargement display device
21: Plant data editing device
22: display terminal
23, 24: storage device
25: section setting means
26: reposition calculation means
27: Re-position actual value acquisition means
28: display control means
29: Reference value registration means
30: Button

Claims (7)

A data analyzing apparatus for analyzing data in an industrial plant for producing a product using a plurality of devices while conveying a predetermined material by a conveying device based on a calculation result of a process calculator,
A data collection device for collecting plant data in a time series,
A data accumulating device for accumulating the plant data collected by the data collecting device;
And a re-conveyance history editing device for displaying information on the conveyance history of the reel conveyed by the conveying device on a predetermined display terminal,
The re-transfer history editing device comprises:
Re-position calculating means for calculating a position of a designated ash by using data from the process calculator among the plant data stored in the data accumulating device;
A re-position actual value acquiring means for acquiring, from plant data accumulated in the data accumulating device,
And display control means for causing the display terminal to display the calculation value calculated by the repositioning means and the actual value acquired by the repositioning actual value acquiring means side by side,
Wherein the display control means displays the moving distance of the designated ashes and a second line passing through the actual value obtained by the re-position actual value acquiring means and the first line passing through the calculated value calculated by the re- And displays a graph on the display terminal in relation to the time required for the movement. The method according to claim 1,
The re-transfer history editing device comprises:
And reference value registering means for storing the selected plant data of the plant data stored in the data accumulating device in a predetermined storage means as a reference value,
Wherein the display control means is operable to set the reference value stored in the storage means to the actual value of the designated ash when the plant data of the product having the same product specification as the designated material is stored in the storage means as a reference value And displays the data on the display terminal side by side. The method according to claim 1,
And a designated interval magnification display device for enlarging and displaying the calculated value calculated by the repositioning calculation means and the actual value acquired by the repositioning actual value acquisition means on the display terminal with respect to the specified section,
The designated section enlargement display apparatus includes:
Position display means for displaying the time difference between the calculated value calculated by the re-position calculating means and the actual value acquired by the re-position actual value acquiring means on the display terminal,
Corrects the calculation value calculated by the re-position calculating means and the actual value acquired by the re-position actual value acquiring means so that the value at the start time of the designated section becomes the same and displays the same in the display terminal Interpretation device. The method according to claim 1,
The industrial plant comprises a steel plate rolling line,
The repositioning calculation means calculates the position of the ash using the re-conveying speed, the rolling speed, the inflow speed and the inflow speed of the rolling mill, and the acceleration / deceleration rate of the rolling mill, and specifies the rolling time and the non- Data interpretation device. A data analyzing apparatus for analyzing data in an industrial plant for producing a product using a plurality of devices while conveying a predetermined material by a conveying device based on a calculation result of a process calculator,
A data collection device for collecting plant data in a time series,
A data accumulating device for accumulating the plant data collected by the data collecting device;
And a re-conveyance history editing device for displaying information on the conveyance history of the reel conveyed by the conveying device on a predetermined display terminal,
The re-transfer history editing device comprises:
Re-position calculating means for calculating a position of a designated ash by using data from the process calculator among the plant data stored in the data accumulating device;
A re-position actual value acquiring means for acquiring, from plant data accumulated in the data accumulating device,
And display control means for causing the display terminal to display the calculation value calculated by the repositioning means and the actual value acquired by the repositioning actual value acquiring means side by side,
The re-transfer history editing device comprises:
And reference value registering means for storing the selected plant data of the plant data stored in the data accumulating device in a predetermined storage means as a reference value,
Wherein the display control means is operable to set the reference value stored in the storage means to the actual value of the designated ash when the plant data of the product having the same product specification as the designated material is stored in the storage means as a reference value And displays the data on the display terminal side by side. A data analyzing apparatus for analyzing data in an industrial plant for producing a product using a plurality of devices while conveying a predetermined material by a conveying device based on a calculation result of a process calculator,
A data collection device for collecting plant data in a time series,
A data accumulating device for accumulating the plant data collected by the data collecting device;
And a re-conveyance history editing device for displaying information on the conveyance history of the reel conveyed by the conveying device on a predetermined display terminal,
The re-transfer history editing device comprises:
Re-position calculating means for calculating a position of a designated ash by using data from the process calculator among the plant data stored in the data accumulating device;
A re-position actual value acquiring means for acquiring, from plant data accumulated in the data accumulating device,
And display control means for causing the display terminal to display the calculation value calculated by the repositioning means and the actual value acquired by the repositioning actual value acquiring means side by side,
The industrial plant comprises a steel plate rolling line,
The repositioning calculation means calculates the position of the ash using the re-conveying speed, the rolling speed, the inflow speed and the inflow speed of the rolling mill, and the acceleration / deceleration rate of the rolling mill, and specifies the rolling time and the non- Data interpretation device. delete

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