CN100371097C - Control method of multiple material flow tracing - Google Patents
Control method of multiple material flow tracing Download PDFInfo
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- CN100371097C CN100371097C CNB2005100262255A CN200510026225A CN100371097C CN 100371097 C CN100371097 C CN 100371097C CN B2005100262255 A CNB2005100262255 A CN B2005100262255A CN 200510026225 A CN200510026225 A CN 200510026225A CN 100371097 C CN100371097 C CN 100371097C
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Abstract
The present invention provides a control method of multiple material flow tracing, which comprises the procedures as follows: procedure 1: at least one material flow tracing computation module is set, and a plurality of representative positions selected by the module are used for tracking, correcting and computing the positions of material flows; procedure 2: at least one data application zone is established; when a certain material flow tracing computation module is enabled, the correspondingly set data application zone is simultaneously enabled; band steel marks are bound with the data application zone; procedure 3: a plurality of control section points are established for controlling the operation of a valve according to a rolling rhythm; after the control section points are enabled, the set data of following band steel can not be used until the data is released; when the next material flow enters a working zone, the setting of the next band steel can be used. Because the present invention adopts the multiple-point position correction material flow tracing, and multiple-flow control point operation processing, etc., the real-time performance of the precision and the control of the tracking is enhanced.
Description
Technical field
The present invention relates to a kind of control method of material flow tracing, especially relate to the control method that a kind of multiple material flow tracing is handled.
Background technology
In belt steel rolling technology, the laminar flow cooling is accommodation zone steel steel quality and reaches the important means of whole uniformly volume temperature rationally, at home and abroad is widely used.Material flow tracing is the foundation of laminar flow cooling control, the raising of material flow tracing precision, the errorless processing and the distribution of many materials flows control data have very big help to the raising of cold control real-time of layer and Rolling Production rhythm, for final quality and the output that improves product provides important assurance.
In the existing manufacturing technique, the real-time control technology of the cold model of layer has been adopted in the laminar flow cooling, to producing rolling rhythm higher requirement has been arranged simultaneously.And original in fixing point tracking materials flow, two methods of expecting that material is handled have not in turn reached requirement.
Summary of the invention
Technical problem to be solved by this invention is a kind of control method of multiple material flow tracing, and it adopts the multiple spot position correction to follow the tracks of, and methods such as the moving control point of multithread operational processes have improved the precision of tracking and the real-time of control.
In order to solve the problems of the technologies described above, multiple material flow tracing control method of the present invention comprises the steps:
Step 1, set at least one material flow tracing computing module, this module selects a plurality of representational positions to follow the tracks of the position of corrected Calculation materials flow.When a plurality of materials flows existed simultaneously, a plurality of material flow tracing computing modules triggered in succession, followed the tracks of materials flow separately respectively, and described materials flow is meant the band steel;
Step 2, set up at least one data to use the district, when a certain material flow tracing computing module was enabled, corresponding setting data used the district to be activated simultaneously, and band steel mark and this data use the district to bind mutually.According to the band steel mark of binding, setting data uses between district and the setting data region of acceptance and sets up dynamic linking relationship, and only acceptance belongs to the setting data of the continual renovation of this band steel;
Step 3, set up of the action of a plurality of control section points with by-pass valve control according to rolling rhythm, after the control section point is activated, the setting data of follow-up band steel can't use, after it is released, when the workspace is entered in next piece materials flow, the setting of following piece band steel just can be used, and described valve is the valve of control band steel cooling.
Owing to adopted technique scheme, advantage of the present invention is as follows:
(1) control accuracy is improved
Big at former engineering material flow tracing error, setting data is carried out problems such as real-time difference, and the present invention has adopted the multiple spot position correction to follow the tracks of, and methods such as the moving control point of multithread operational processes make the precision of tracking and the real-time of control obtain very big improving.
(2) higher application and popularization value is arranged
The present invention is owing to the accurate real-time of precision that has improved tracking and the action of many materials flows situation lower valve, thereby the accuracy that makes band steel chilling temperature reach the control requirement improves greatly.The identical technology controlling and process in this area there is higher using value, in addition, material flow tracing like other Engineering is also had certain application and popularization value.
(3) can be used for different software control systems
This application software model is not at concrete software control system, and the control model has adopted the modularization flow chart to carry out the software design, when running into different software control systems, as long as adopt corresponding programming software, reprograms download and gets final product.
Description of drawings
Fig. 1 is the schematic diagram of the specific embodiment of material flow tracing method of the present invention.
Fig. 2 is the schematic diagram of materials flow position correction computational methods of the present invention.
Fig. 3 is that the data of two materials flows of the present invention when existing use the district to distribute schematic diagram.
Fig. 4 is the execution schematic diagram of polylith materials flow of the present invention parameter when existing.
Wherein: FDT is a finish rolling outlet temperature detector; CT is a coiling machine inlet temperature detector; F1-F7 is the 1-7 finishing mill; HMD1-4 is heat inspection device 1-4.
The specific embodiment
Multiple material flow tracing control method of the present invention comprises the steps:
Step 1, set at least one material flow tracing computing module, this module selects a plurality of representational positions to follow the tracks of the position of corrected Calculation materials flow.When a plurality of materials flows existed simultaneously, a plurality of material flow tracing computing modules triggered in succession, followed the tracks of materials flow separately respectively;
Step 2, set up at least one data to use the district, when a certain material flow tracing computing module was enabled, corresponding setting data used the district to be activated simultaneously, and band steel mark and this data use the district to bind mutually.Band steel mark according to binding, setting data uses the district (to be with the cooling of steel to be finished being with steel to spray water according to different cooling patterns by valve with the setting data region of acceptance of temperature control model, and valve cooling pattern be by the temperature control model according to factors such as band steel matter, specification and actual cooling data calculate the back constantly setup parameters give the setting data region of acceptance) between set up dynamic linking relationship, only accept to belong to the setting data of the continual renovation of this band steel;
Step 3, set up of the action of a plurality of control section points with by-pass valve control according to rolling rhythm, after the control section point was activated, the setting data of follow-up band steel can't use, after it is released, when the workspace was entered in next piece materials flow, the setting of following piece band steel just can be used.
Describe the present invention in detail below in conjunction with Fig. 1-Fig. 4 laminar flow cooling technology and how to reach many materials flows accurately tracking and control purpose.
1, the band steel of multiple spot correction is followed the tracks of and is calculated
The position calculation of original system band steel materials flow is that last stand under load frame is that starting point is calculated with a fixing point basically, because the existence of the uncertain factors such as slip of band steel on roller-way usually brings certain error to tracking.Now the technical thought of Cai Yonging is that multiple spot is followed the tracks of: select a plurality of representational positions to carry out the tracking corrected Calculation of materials flow.Specify as follows: as shown in Figure 1, 2: calculating and taking the lead the method for position is when F1 (finishing mill) stand under load triggering signal produces, physical location with the frame at F1 (finishing mill) place is a benchmark, carries out position calculation according to the speed of service and the timer counter module of this frame; The rest may be inferred, when HMD2 ON (No. two hot metal detector detects the band steel) triggering signal generation, the physical location that changes into heat inspection device 2 places is a benchmark, the roller-way speed of service and timer counter module according to heat inspection device 2 places are carried out position calculation, when HMD4 ON (No. four hot metal detector detects the band steel) triggering signal generation, physical location with coiling machine pinch roll place is a benchmark, carry out position calculation according to its speed of service and timer counter module, in like manner, the method of calculating the magnetic tape trailer position is when Fn (n finishing mill) unloading or HMD OFF (hot metal detector detects less than the band steel) triggering signal generation, latch the equipment speed of service at place this moment, based on this, constantly carry out position calculation and correction according to the timer counter module.
Because layer cold area allows to have simultaneously the existence of three blocks of band steel, follow the tracks of computing block so set three band steel, when a band steel, have only a band steel to follow the tracks of computing block and work, as required, maximum three band steel are followed the tracks of computing block and are all worked.Enabling which computing block is to use the district corresponding one by one according to enabling which setting data, and setting data uses the use in district will be described below.
2, be with the acceptance and the distribution of steel setup parameter more
Because the quickening of rolling rhythm, the band steel number that exists at layer cold area increases to three by original two, and the valve dynamic adjusting data that requires the temperature control model in addition is dynamic refresh in time.Setting data and each piece rolled band steel are just in time fitted like a glove? improved plan is: in conjunction with shown in Figure 3: set up four data buffer areas, and a region of acceptance as data, three are used the district as the data of three blocks of band steel respectively in addition.The data region of acceptance is accepted model data and is changed increase by one count value, method for updating when value becomes into by original timing scan method for updating.The concrete operations way is that the temperature control model whenever sends and once changes signal, count value adds one, data are accepted module this value of cycle detection at high speed, when finding to change, just the setting data bag is accepted, this has just been avoided each high speed circulation to accept the trouble that the data communication amount is big and cpu load is heavy that data are brought; Next the thing that will do is that setting data is assigned on the band steel that will cool off accordingly exactly, here adopted the band grade of steel to follow the tracks of the method for distributing, it is the start pulse signal that new band steel will be arranged that the cold sperm district sends here that the data allocations processing module at first receives an operation, write down new actual band grade of steel, check then whether first data use district is empty, if, send the occupied sign in this memory field, and give these data with reality with grade of steel and use the band grade of steel of distinguishing, when band grade of steel that data are used the district with accept the data field in the band grade of steel that receives when consistent, use the district to set up the contact link data region of acceptance and this data, when the setting district data change, refresh the data of setting up link simultaneously and use district's data, when the band grade of steel changes in accepting the data field, promptly not that the setting of this piece band steel of the data band grade of steel that uses the district is when coming, link disconnects, but first setting data uses district's EMS memory occupation sign not necessarily to disappear, leave tracing area up to this band steel afterbody, this sign just is eliminated; First setting data uses the district if not empty, checks that second setting data uses whether the district is empty, by that analogy, sets up three dynamic links at most, and each setting data uses district and corresponding salband steel corresponding one by one.
3, the valve at many control points is carried out and is handled
As polylith band steel on layer cold area, is the action of valve according to which setting data carried out? original way is that last band steel afterbody is behind the valve of opening at last, just allow the setting value of next band steel work, this is little to influence under the slow situation of rolling rhythm, but to allegro rolling just not too suitable, this can make the head of next piece band steel be in no control state.The control method of now using instead is that as shown in Figure 4: set up a plurality of control points, the situation of control point length can provide different reference values by model.After the control point was occupied, the setting data of a back band steel can't use, and after it was released, when next piece band steel advanced layer cold area, the setting of following piece band steel just can be used.
Claims (6)
1. the control method of a multiple material flow tracing is characterized in that, comprises the steps:
Step 1, set at least one material flow tracing computing module, this module selects a plurality of representational positions to follow the tracks of the position of corrected Calculation materials flow, when a plurality of materials flows exist simultaneously, a plurality of material flow tracing computing modules trigger in succession, follow the tracks of materials flow separately respectively, described materials flow is meant the band steel;
Step 2, set up at least one data to use district and a data region of acceptance, when a certain material flow tracing computing module is enabled, corresponding setting data uses the district to be activated simultaneously, and the materials flow mark of the materials flow that the material flow tracing computing module that is activated is followed the tracks of uses district's binding mutually with these data; According to the materials flow mark of binding, setting data uses between district and the setting data region of acceptance and sets up dynamic linking relationship, and only acceptance belongs to the setting data of the continual renovation of this materials flow;
Step 3, set up of the action of a plurality of control section points with by-pass valve control according to rolling rhythm, after the control section point is activated, the setting data of follow-up materials flow can't use, after it is released, when the workspace is entered in next piece materials flow, the setting of following piece materials flow just can be used, and described valve is the valve of control band steel cooling.
2. the control method of multiple material flow tracing according to claim 1 is characterized in that, the setting data that described data region of acceptance receives calculates the back according to factors such as band steel matter, specification and actual cooling data and constantly sets
3. the control method of multiple material flow tracing according to claim 1, it is characterized in that, the method of described step 1 is specially: calculating and taking the lead the method for position is when a finishing mill stand under load triggering signal generation, physical location with the frame at a finishing mill place is a benchmark, carries out position calculation according to the speed of service and the timer counter module of this frame; The rest may be inferred, when No. two hot metal detectors detect the generation of band steel triggering signal, the physical location that changes into heat inspection device 2 places is a benchmark, the roller-way speed of service and timer counter module according to heat inspection device 2 places are carried out position calculation, when No. four hot metal detectors detect the generation of band steel triggering signal, physical location with coiling machine pinch roll place is a benchmark, carry out position calculation according to its speed of service and timer counter module, in like manner, the method of calculating the magnetic tape trailer position is when the unloading of n finishing mill or hot metal detector detect less than the generation of band steel triggering signal, latch the equipment speed of service at place this moment, based on this, constantly carry out position calculation and correction according to the timer counter module.
4. the control method of multiple material flow tracing according to claim 1, it is characterized in that, the concrete grammar of described step 2 is: set up three data buffer areas, use the district as the data of three materials flows respectively, the data region of acceptance is accepted the method for data for increasing by a count value, method for updating when value becomes.
5. the control method of multiple material flow tracing according to claim 4, it is characterized in that, the method that data are accepted in described data field is: whenever send and once change signal, count value adds one, the data region of acceptance is this value of cycle detection at high speed, when finding to change, just the setting data bag is accepted, by a data allocations processing module setting data is assigned in the corresponding materials flow exactly the band steel of described materials flow then for cooling off.
6. the control method of multiple material flow tracing according to claim 5, it is characterized in that, the described method that setting data is assigned to exactly on the band steel that will cool off accordingly adopts the band grade of steel to follow the tracks of the method for distributing, be specially: it is the start pulse signal that new band steel will be arranged that the cold sperm district sends here that the data allocations processing module at first receives an operation, write down new actual band grade of steel, check then whether first data use district is empty, if, send the occupied sign in this memory field, and give these data with reality with grade of steel and use the band grade of steel of distinguishing, when band grade of steel that data are used the district with accept the data field in the band grade of steel that receives when consistent, use the district to set up the contact link data region of acceptance and this data, when the setting district data change, refresh the data of setting up link simultaneously and use district's data, when the band grade of steel changes in accepting the data field, promptly not that the setting of this piece band steel of the data band grade of steel that uses the district is when coming, link disconnects, but first setting data uses district's EMS memory occupation sign not necessarily to disappear, leave tracing area up to this band steel afterbody, this sign just is eliminated; First setting data uses the district if not empty, checks that second setting data uses whether the district is empty, by that analogy, sets up three dynamic links at most, and each setting data uses district and corresponding salband steel corresponding one by one.
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100518973C (en) * | 2007-12-29 | 2009-07-29 | 攀枝花新钢钒股份有限公司 | Tracing correcting method of hot tandem rolling precision rolling second-level system |
| CN101644924B (en) * | 2008-08-06 | 2011-06-29 | 上海宝信软件股份有限公司 | Method for tracking and managing process of weighing and loading materials for blast furnace |
| CN101751021B (en) * | 2008-12-19 | 2011-08-24 | 鞍钢集团工程技术有限公司 | Seamless steel tube production process information tracking method |
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| CN102049483B (en) * | 2010-12-31 | 2012-10-10 | 中冶连铸技术工程股份有限公司 | Positioning method and device for casting body tracking and quality judging of continuous casting machine |
| CN103372573B (en) * | 2012-04-28 | 2015-12-09 | 宝山钢铁股份有限公司 | A kind of hot rolling slab is videoed amendable tracking and controlling method |
| CN103878184B (en) * | 2012-12-24 | 2016-08-24 | 上海梅山钢铁股份有限公司 | Hot rolling rolling line material position remote tracing method |
| CN105234184A (en) * | 2015-11-10 | 2016-01-13 | 内蒙古包钢钢联股份有限公司 | Steel pilling-up protective method for serial type rolling mill |
| CN108114991B (en) * | 2016-11-30 | 2019-05-28 | 宝山钢铁股份有限公司 | A kind of top pinch roll energy-saving control method |
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