CN109388837A - A method of virtual steel rolling is carried out using historical data - Google Patents
A method of virtual steel rolling is carried out using historical data Download PDFInfo
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- 238000005096 rolling process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 230000006870 function Effects 0.000 claims description 19
- 238000012986 modification Methods 0.000 claims description 12
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- 238000004321 preservation Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 238000004088 simulation Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 7
- 238000005098 hot rolling Methods 0.000 description 5
- 230000008676 import Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 238000012369 In process control Methods 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000002788 crimping Methods 0.000 description 1
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- 238000005538 encapsulation Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
The present invention provides a kind of method for carrying out virtual steel rolling using historical data.The method of the present invention includes the designs at (1) interface: being divided into all preparations that new plan prepares picture and model calculating parameter prepares picture, before calculating by two tables completion models, by model computed push-buttom, realizes that data are imported and calculated；(2) creation newly planned；(3) model calculating parameter prepares: extracting model and calculates when institute parameter field in need, creates table, and give initial value；(4) calculating of model；(5) to the detection of experimental result and loop iteration, until model specification result meets production requirement.The present invention can analyze existing production system, the exploitation that a simulation system is carried out to existing on-line system be realized by panel data, it is ensured that virtual system possesses parameter identical with on-line system, equipment and environment, facilitates the off-line test of function.
Description
Technical field:
The present invention relates to a kind of methods for carrying out virtual steel rolling using historical data, belong to controlling hot rolling technical field.
Background technique:
Before the project implementation, trouble shoot in hot rolling production, function is newly-increased, program is improved and the conventional lifes such as bug is checked
Produce maintenance issues, can not often carry out, phenomenon and the reason is as follows that:
Trouble shoot, since log recording is not comprehensive, relevant information dispersion needs to toggle, when causing to search failure
Between it is long, accident analysis is not comprehensive, and there are security risks.
Function is newly-increased and then new product development can just come into operation for the test of new function needs progress repeatedly.New product is opened
Hair carries out the confirmation at scene, adjustment to thousands of a supplemental characteristics in model calculating.These work are impossible in actual production
It completes, on the one hand drags slow rhythm of production, on the other hand, parameter adjustment inaccuracy will lead to steel scrap in site.So needing to create one
It is a noiseless to actual production, but data need the system carried out in parallel again to realize these functions.
It is usually to repair to fault in production that program, which is improved, at this time necessary not only for the modification of function logic, but is created
Make environment similar with failure at that time.On-line system can not achieve the repeat-rolling of data, meanwhile, less to the data in production
Can be because debugging be modified, on-line system can not realize this important function in production.
Summary of the invention
The purpose of the present invention is provide a kind of side that virtual steel rolling is carried out using historical data in view of the above problems
Method can analyze existing production system, realized by panel data and carry out a simulation system to existing on-line system
The exploitation of system, it is ensured that virtual system possesses parameter identical with on-line system, equipment and environment, facilitates the off-line test of function.
Above-mentioned purpose is achieved through the following technical solutions:
A method of virtual steel rolling being carried out using historical data, this method comprises:
(1) design at interface: being divided into new plan and prepare picture and model calculating parameter preparation picture, complete by two tables
All preparations before calculating at model realize that data are imported and calculated by model computed push-buttom；
(2) creation newly planned: according to planning chart information field in oracle database, according to the requirement that new product is tested,
New plan is write on backstage, meets the needs of new product test；
(3) model calculating parameter prepares: it extracts model and calculates when institute parameter field in need, creation can modify table,
And initial value is given, the parameter that needs are modified is modified by modes such as predictions, until meeting the needs of produced on-site；
(4) calculating of model: model calculating core code is consistent with practical on-time model calculation code, including roughing model
Core document, finish rolling model calculating core document are calculated, carries out writing out in a manner of black box, log and report are on backstage
Situation after display data calculate；
(5) to the detection of experimental result and loop iteration: the result of calculating carries out feasibility analysis, by with model pole
Limit, the equipment limit are compared, and check that reasonability, limiting value are respectively defined in model table and configuration file, with TXT format guarantor
It deposits, is analyzed using existing Configuration Online, if unreasonable, carry out the corresponding amendment of parameter, amendment work is enterprising in picture
Row, corresponding corresponding modification field, carries out the modification of parameter value, after amendment, then carries out recalculating for model, until model is set
Determine result and meets production requirement.
The method for carrying out virtual steel rolling using historical data, plan described in step (1) prepare picture and include
First by history coil of strip stripno, all history planning datas of this strip in filing database are extracted, SQL statement is utilized
Select*from pdi_history where coil of strip number=stripno；Data are imported after extracting in the new planning chart of picture；
Increase the function that can modify field value simultaneously, corresponding field, and the modification being worth can be selected according to planning chart, by new data
It modifies and imports in new planning chart.
The method for carrying out virtual steel rolling using historical data, model calculating parameter described in step (1) prepare
Picture includes: to extract all history of this strip in filing database by history coil of strip stripno first to calculate data, benefit
With SQL statement select*from calc_history where coil of strip number=stripno；Data import picture after extracting new
In parameter list, including roughing self study coefficient, finish rolling self study coefficient, correction value, model calculating parameter Para are operated, model is set
Learning coefficient is spreaded in reliability, finish rolling, while having the function of that field value can be modified, and can select corresponding word according to model parameter table
Section, and the modification being worth, new data is modified and is imported in new model parameter list.
The utility model has the advantages that
1. when picture design of the present invention, analyzing functional requirement, preliminary interface, including equipment member are sketched out
The packing design of component, design of function button etc..It include history number by the failure also original picture that object oriented language is realized
It is for example fast that function, failure Dynamically Announce switch and some buttons conveniently checked are enumerated according to import feature, coil of strip essential information
Into, rewind, pause, period interception.Static library file is packaged into the milling equipment, pyrometer, crimping machine of rolling line, facilitates tune
With.The library file encapsulated in this scheme can be quoted directly, for other hot rolling own characteristics.It can supplement or modify setting for oneself
Standby encapsulation library file.The source of fault data is mainly the data for utilizing actual production, this data is in all hot rolling production
There is preservation, the mode majority of preservation is with TXT document form.The invention can be to the txt file of production or with binary system shape
The file that formula saves is operated, such as communication text operation log.Binary file is the decompiling system by independent development
System carries out backstage conversion, and is written in caching, waits to be used.This purpose core function is to realize moving for history binary log
State is shown, among these not exclusively to the decompiling for arriving data file, it is often more important that the gradually rolling with strip is realized,
The reduction and Dynamically Announce for the event that links occur.The method of realization is exactly to roll using using defined in milling train static library
Machine location information, while the variation that strip length occurs in creation data, carry out the determination of strip position.Realize dynamic mobile,
And set information is shown in accurate position.Running environment at that time is restored, whether the equipment at scene when such as producing
Normally, the technique initialization deviation etc. when producing all passes through caching record and is shown in strip information, and the pass between front and back
Connection such as position, setting, self study be also with live practical steel rolling it is identical, so that the lookup of failure is more had continuity and study
Property.The factor for facilitating trouble shoot is increased simultaneously, if whether model specification promptly and accurately alarms, whether just with the communication of L1 text
Often display etc., enables fault point to be more timely exposed.
2. the present invention utilizes produced on-site, relevant data all to database, log and packaging file etc. are collected,
And by the operation of trackbar, realizes the reduction of field failure, and reduction is realized to the fault point for causing failure, failure is facilitated to look into
It looks for.
3. virtual construct of the present invention goes out planning data, according to functional requirement, pass through virtual computing and virtual process mould
Imitative L2 tracking, while increasing input parameter list, data support is provided for the calculating of model, is calculated for new product and carries out virtual test,
Test result is judged, and can be calculated with loop iteration, until all output conditions meet production requirement.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated, it should be understood that following specific embodiments are only used for
It is bright the present invention rather than limit the scope of the invention.
A kind of method carrying out virtual steel rolling using historical data of the present embodiment, this method comprises:
1, the design at interface.It is divided into new plan and prepares picture and model calculating parameter preparation picture, it is complete by two tables
All preparations before calculating at model realize that data are imported and calculated by model computed push-buttom.
1.1, which wherein plan preparation picture, has following functions:
First by history coil of strip stripno, all history planning datas of this strip in filing database are extracted, are utilized
SQL statement select*from pdi_history where coil of strip number=stripno；Data import the new meter of picture after extracting
It draws in table.
In addition, increasing the function that can modify field value.Corresponding field can be selected according to planning chart, and be worth
Modification, new data is modified and is imported in new planning chart.
1.2 model calculating parameters prepare picture and have following functions:
First by history coil of strip stripno, extracts all history of this strip in filing database and calculate data, utilize
SQL statement select*from calc_history where coil of strip number=stripno；Data import the new ginseng of picture after extracting
In number table, including roughing self study coefficient, finish rolling self study coefficient operate correction value, model calculating parameter Para, model confidence
Learning coefficient is spreaded in degree, finish rolling.
Increase the function that can modify field value.Corresponding field can be selected according to model parameter table, and be worth
Modification, new data is modified and is imported in new model parameter list.
2, the creation newly planned.According to planning chart information field in oracle database, according to the requirement that new product is tested, after
Platform writes new plan, meets the needs of new product test, mainly includes specification variation, target value variation, roll-force load variations, rolls
Strategy change processed etc..
Increasing planning chart PDI in oracle database, content is consistent with on-line planning, the various parameters comprising slab,
Implementation is realized using the insert sentence of PL/SQL
Insert into PDI value (' coil of strip number ', ' quality number ', ' long ', ' wide ', ' thick ', ' rolling width
Degree ' ... ...)
3, model calculating parameter prepares.The parameter that model is inputted when being set directly determines that can the test of new product at
Function.It extracts model and calculates when institute parameter field in need, creation can modify table, and give initial value, modify needs
Parameter is modified by modes such as predictions, until meeting the needs of produced on-site.
4, the calculating of model.Model calculating core code is consistent with practical on-time model calculation code, mainly includes roughing
Model calculates core document, finish rolling model calculates core document, carries out writing out in a manner of black box.Log and report exist
Situation after backstage display data calculate.
Wherein, all core algorithms have all been packaged into dll file, when being calculated, only need to prepare interface document and
Receive output file.
Finish rolling model core file FMSPREAD.DLL inputs parameter: inlet thickness, throat width, target thickness, finish rolling
Model parameter table data, same specification spread coefficient of heredity
Output file: finish rolling is spreaded
Roughing model calculate core document RMCALC.dll, input parameter: inlet thickness, throat width, target thickness,
Coefficient, genetic model coefficient, finish rolling are spreaded in model table.
Output strip controls target value in the width of each passage of roughing.
For all input files, all in model table on deck, model calculate when, only need to go calculate picture it is straight
Extraction is connect, the file of output is exported in the form of log and report, and report is carried out by the csv file form of writing in C#,
Sentence are as follows:
FileStream fs=new FileStream (" path ")；
Fs.Write (field for needing to write, 0, the field length write)；
5, to the detection of experimental result and loop iteration.The result of calculating carries out feasibility analysis, by with the model limit,
The equipment limit is compared, and checks reasonability.Limiting value is respectively defined in model table and configuration file, is saved with TXT format,
It is analyzed using existing Configuration Online.If unreasonable, the corresponding amendment of parameter is carried out.Amendment work carries out on picture,
Corresponding corresponding modification field, carries out the modification of parameter value.After amendment, then recalculating for model is carried out, until model specification
As a result meet production requirement.
Case one: the practical roll gap of the small edger roll tail portion short stroke width set-point of finish rolling and scene puts inconsistent failure
Finish rolling region need to reduce width value to the tail portion short stroke control of the small edger roll of finish rolling due to the needs of equipment protection,
Width model calculating in Process Control System, which has been carried out, subtracts wide setting, but scene is still not operating, to its failure cause
It is analyzed.
1780 creation data of plum steel is saved with the situation of drc binary file.Failure system is opened, is appointed by file
201611080705.drc file is opened on business column, can be decoded it automatically from the background, and strip keyword is written to the information on the left side
In frame.
1, it can choose the failure strip required to look up and double-click the reduction that data are produced in message box, it can also be direct
Click starts, and restores from the beginning, clicks F.F., fast backward button carries out the speed change of animation.
2, whether correct by the rolling feature observation setting of itself steel mill, text.The model specification point of Mei Gang is in rack
Beginning and end.Communication text is sent according to position, such as surveys wide text, thermometric text.
It can clearly show when strip in what position has sent tail portion short stroke data, and data by this system
It is whether accurate.Through analysis tail portion short stroke setting value when entering E3, the demand of production, field device movement has been fully achieved
Require to look up reason.
Two: Mei Gang company of case, 1780 hot rolling producing line roughing region is produced using the new rolling strategy rolling of 3+5.
1, specification, classification, the steel information for needing to carry out 3+5 rolling are determined, as requested, modifies parameter in table, and set
Determine rolling strategy.
Modified strip is calculated.Parameter control and limit check are carried out simultaneously.Pass through log and report messages
It can clearly check.
Claims (3)
1. a kind of method for carrying out virtual steel rolling using historical data, it is characterized in that: this method comprises:
(1) design at interface: it is divided into new plan and prepares picture and model calculating parameter preparation picture, pass through two tables and complete moulds
All preparations before type calculates realize that data are imported and calculated by model computed push-buttom；
(2) creation newly planned: according to planning chart information field in oracle database, according to the requirement that new product is tested, backstage
New plan is write, the needs of new product test are met；
(3) model calculating parameter prepares: extracting model and calculates when institute parameter field in need, creation can modify table, and give
Initial value is given, the parameter that needs are modified is modified by modes such as predictions, until meeting the needs of produced on-site；
(4) calculating of model: model calculating core code is consistent with practical on-time model calculation code, including roughing model calculates
Core document, finish rolling model calculate core document, carry out writing out in a manner of black box, and log and report are shown on backstage
Situation after data calculate；
(5) to the detection of experimental result and loop iteration: the result of calculating carries out feasibility analysis, by with the model limit, set
The standby limit is compared, and checks that reasonability, limiting value are respectively defined in model table and configuration file, with the preservation of TXT format, benefit
It is analyzed with existing Configuration Online, if unreasonable, carries out the corresponding amendment of parameter, amendment work carries out on picture, right
Field should be modified accordingly, carries out the modification of parameter value, after amendment, then carries out recalculating for model, until model specification knot
Fruit meets production requirement.
2. the method according to claim 1 for carrying out virtual steel rolling using historical data, it is characterized in that: institute in step (1)
It includes extracting all history of this strip in filing database by history coil of strip stripno first that the plan stated, which prepares picture,
Planning data utilizes SQL statement select*from pdi_history where coil of strip number=stripno；Data are led after extracting
Enter in the new planning chart of picture；Increase the function that can modify field value simultaneously, corresponding field can be selected according to planning chart, gone forward side by side
The modification of row value, new data is modified and is imported in new planning chart.
3. the method according to claim 1 for carrying out virtual steel rolling using historical data, it is characterized in that: institute in step (1)
It includes: to extract this strip in filing database by history coil of strip stripno first that the model calculating parameter stated, which prepares picture,
All history calculate data, utilize SQL statement select*from calc_history where coil of strip number=stripno；Number
It is imported in the new parameter list of picture according to after extraction, including roughing self study coefficient, finish rolling self study coefficient, operates correction value, mould
Learning coefficient is spreaded in type calculating parameter Para, model confidence, finish rolling, while having the function of that field value can be modified, can basis
Model parameter table selects corresponding field, and the modification being worth, and new data is modified and is imported in new model parameter list.
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Cited By (2)
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| CN112872046A (en) * | 2020-11-26 | 2021-06-01 | 冶金自动化研究设计院 | Method for improving setting precision of hot rolling roll changing specification rolling thickness |
| CN113953333A (en) * | 2021-10-20 | 2022-01-21 | 攀钢集团攀枝花钢钒有限公司 | Method for determining roll gap value in section bar universal method rolling procedure |
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| CN113953333A (en) * | 2021-10-20 | 2022-01-21 | 攀钢集团攀枝花钢钒有限公司 | Method for determining roll gap value in section bar universal method rolling procedure |
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