Strip width margin control method, device, medium and electronic equipment

Abstract

The present application relates to the technical field of steel rolling, and discloses a method, device, medium and electronic device for controlling the width margin of a steel strip. The method comprises: obtaining the factor parameters of a target steel strip on at least one factor, and obtaining the factor parameters of each historical steel strip on the at least one factor in a historical database; determining the similarity between the target steel strip and each historical steel strip according to the factor parameters of each historical steel strip and the factor parameters of the target steel strip; selecting at least one target historical steel strip from each historical steel strip based on the similarity; and controlling the steel strip width margin of the target steel strip based on the recommended width margin of the at least one target historical steel strip. The technical solution provided by the present application can improve the control accuracy and control efficiency of the steel strip width margin in steel strip production, thereby improving the steel strip production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of steel rolling, and in particular to a method, device, medium and electronic equipment for controlling the width margin of a steel strip. Background Art

[0002] At present, in the field of steel rolling technology, for example, in the hot rolling and rough rolling production process, it is usually necessary to reserve a certain width margin for the strip to ensure that the actual width is always above the target value, so as to improve the flexibility of users in using the strip products. However, in the prior art, the strip width margin is manually given by the operator, and the value is usually too large or too small, resulting in waste of strip or reducing the user experience. Based on this, how to improve the control accuracy and control efficiency of the strip width margin in strip production is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The embodiments of the present application provide a method, device, computer medium and electronic device for controlling the width margin of a steel strip, which can improve the control accuracy and control efficiency of the width margin of a steel strip in steel strip production to a certain extent, thereby improving the production efficiency of steel strip.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0005] According to one aspect of the present application, a method for controlling the width margin of a strip is provided, the method comprising: obtaining factor parameters of a target strip on at least one factor, and obtaining factor parameters of each historical strip on the at least one factor in a historical database; determining the similarity between the target strip and each historical strip based on the factor parameters of each historical strip and the factor parameters of the target strip; selecting at least one target historical strip from each historical strip based on the similarity; and controlling the strip width margin of the target strip based on the recommended width margin of the at least one target historical strip.

[0006] In some embodiments of the present application, based on the aforementioned scheme, the similarity between the target steel strip and each historical steel strip is determined according to the factor parameters of each historical steel strip and the factor parameters of the target steel strip, including: respectively calculating the relative distance between the factor parameters of each historical steel strip and the factor parameters of the target steel strip, and obtaining the relative factor distance between each historical steel strip and the target steel strip on at least one factor; respectively summing the relative factor distances between each historical steel strip and the target steel strip on at least one factor, and obtaining the sum of the relative factor distances corresponding to each historical steel strip, and using the sum of the relative factor distances corresponding to each historical steel strip as the similarity between the target steel strip and each historical steel strip.

[0007] In some embodiments of the present application, based on the aforementioned scheme, selecting at least one target historical steel strip from each historical steel strip based on the similarity includes: selecting at least one historical steel strip with the highest similarity from each historical steel strip as the target historical steel strip.

[0008] In some embodiments of the present application, based on the aforementioned scheme, the strip width margin of the target strip is controlled based on the recommended width margin of the at least one target historical strip, including: averaging the recommended width margin of the at least one target historical strip to obtain a set width margin; and controlling the strip width margin of the target strip based on the set width margin.

[0009] In some embodiments of the present application, based on the aforementioned scheme, controlling the strip width margin of the target strip based on the set width margin includes: sending the set width margin to a steel rolling control system, so that the steel rolling control system controls the steel rolling equipment to roll the target strip according to the set width margin.

[0010] In some embodiments of the present application, based on the aforementioned scheme, the method also includes: tracking the actual width margin at each position in the target strip in real time from the rolling equipment; obtaining the upper limit width margin and the lower limit width margin of the rolling equipment during rolling; self-learning the recommended width margin corresponding to the target strip according to the actual width margin at each position in the target strip, the upper limit width margin, and the lower limit width margin; storing the factor parameters of the target strip on the at least one factor and the recommended width margin corresponding to the target strip in the historical database for controlling the rolling width margin when rolling a new target strip next time.

[0011] In some embodiments of the present application, based on the aforementioned scheme, the self-learning of the recommended width margin corresponding to the target strip according to the actual width margin at each position in the target strip, the upper limit width margin, and the lower limit width margin includes: generating a reference width margin curve in a two-dimensional coordinate system based on the actual width margin at each position in the target strip; translating the reference width margin curve to obtain a plurality of candidate width margin curves including the reference width margin curve; selecting a recommended width margin curve in the area defined by the upper limit width margin and the lower limit width margin in the two-dimensional coordinate system; 174 determining the recommended width margin corresponding to the target strip based on the recommended width margin curve.

[0012] According to one aspect of the present application, a control device for controlling the width margin of a strip is provided, the device comprising: an acquisition unit, used to acquire factor parameters of a target strip on at least one factor, and to acquire factor parameters of each historical strip on the at least one factor in a historical database; a determination unit, used to determine the similarity between the target strip and each historical strip based on the factor parameters of each historical strip and the factor parameters of the target strip; a selection unit, used to select at least one target historical strip from each historical strip based on the similarity; and a control unit, used to control the strip width margin of the target strip based on the recommended width margin of the at least one target historical strip.

[0013] According to one aspect of the present application, a computer-readable storage medium is provided, in which at least one program code is stored. The at least one program code is loaded and executed by a processor to implement the operations performed by the method for controlling the strip width margin as described above.

[0014] According to one aspect of the present application, an electronic device is provided, characterized in that the electronic device includes one or more processors and one or more memories, at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by the strip width margin control method as described above.

[0015] In the technical solutions provided in some embodiments of the present application, by obtaining the recommended width margin of at least one target historical steel strip similar to the target steel strip from a historical database, and determining the set width margin based on the obtained recommended width margin, the strip width margin of the target steel strip can be controlled based on the set width margin. Since in the entire process of determining the set width margin, the recommended width margin of the target historical steel strip similar to the target steel strip in the historical database is used as a reference, the width margin of the rolling target steel strip is adaptively adjusted and automatically controlled, thereby improving the control accuracy and control efficiency of the width margin of the target steel strip, thereby improving the strip production efficiency.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 A flow chart showing a method for controlling the width margin of a steel strip in one embodiment of the present application is shown;

[0019] Figure 2 A detailed flow chart of determining the similarity between the target steel strip and each historical steel strip in one embodiment of the present application is shown;

[0020] Figure 3 A detailed flow chart of controlling the strip width margin of the target strip based on the recommended width margin of at least one target historical strip in one embodiment of the present application is shown;

[0021] Figure 4 A flow chart showing a further control method of the strip width margin in one embodiment of the present application;

[0022] Figure 5 A detailed flow chart of self-learning the recommended width margin corresponding to the target strip steel in one embodiment of the present application is shown;

[0023] Figure 6 A schematic diagram showing a width margin curve in one embodiment of the present application is shown;

[0024] Figure 7 A system architecture diagram showing a method for controlling a steel strip width margin in one embodiment of the present application is shown;

[0025] Figure 8 A schematic diagram of a device for controlling the width margin of a steel strip in one embodiment of the present application is shown;

[0026] Fig. 9 A schematic diagram of the structure of a computer system suitable for implementing an electronic device of an embodiment of the present application is shown. DETAILED DESCRIPTION

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0028] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0029] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0030] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0031] Next, the present application will describe in detail the technical solution provided by the present application in conjunction with the accompanying drawings.

[0032] Figure 1 A flow chart of a method for controlling the width margin of a steel strip in one embodiment of the present application is shown. The method can be executed in a control device. The method includes steps 110 to 140:

[0033] In step 110, factor parameters of the target steel strip on at least one factor are obtained, and factor parameters of each historical steel strip on the at least one factor are obtained from a historical database.

[0034] In the present application, the target steel strip may refer to a steel strip to be rolled. For example, in rolling production, the rolling material is rolled by a rolling equipment to obtain the target steel strip.

[0035] In the present application, the factor may refer to the property factor of the target steel strip or rolled material. For example, the property factor may include the hardness information of the rolled material, the tensile strength of the rolled material, the size information, etc. Furthermore, the property factor may also include the rolling environment parameters required to provide in the process of rolling the rolled material into the target steel strip, such as rolling temperature, rolling pressure, rolling tension, etc. Furthermore, the property factor may also include the size information of the target steel strip, etc.

[0036] The historical database contains the most recently produced strip steel data (with the accumulation of production data, the scale is gradually expanded), including various characteristic factors and optimal setting values.

[0037] Specifically, the historical database can be used to store relevant information about the strip steel that has completed rolling production in history. For those skilled in the art, it can be understood that the strip steel that has completed rolling production in history may include multiple types, wherein the historical database can store factor parameters of each historical strip steel on at least one factor.

[0038] It should be noted that, in the present application, the historical database may also store the optimal width margin control amount corresponding to each type of historical strip steel, that is, the recommended width margin.

[0039] Continue to refer to Figure 1 In step 120, the similarity between the target steel strip and each historical steel strip is determined based on the factor parameters of each historical steel strip and the factor parameters of the target steel strip.

[0040] In the present application, the similarity between the target steel strip and each historical steel strip may refer to the degree of similarity between the target steel strip and each historical steel strip.

[0041] In such Figure 1 In one embodiment of step 120, the similarity between the target steel strip and each historical steel strip is determined based on the factor parameters of each historical steel strip and the factor parameters of the target steel strip. Figure 2 Follow the steps shown.

[0042] See also Figure 2 , shows a detailed flow chart of determining the similarity between the target steel strip and each historical steel strip in one embodiment of the present application. Specifically including steps 121 to 122:

[0043] Step 121, respectively calculating the relative distance between the factor parameters of each historical steel strip and the factor parameters of the target steel strip, and obtaining the relative factor distance between each historical steel strip and the target steel strip on the at least one factor.

[0044] Step 122, respectively summing the relative distances of the factors between each historical steel strip and the target steel strip on the at least one factor to obtain the sum of the relative distances of the factors corresponding to each historical steel strip, and using the sum of the relative distances of the factors corresponding to each historical steel strip as the similarity between the target steel strip and each historical steel strip.

[0045] In the present application, a similarity algorithm can be used to calculate the relative distance of each factor to describe the similarity between the target steel strip and the historical steel strip.

[0046] In order to help those skilled in the art better understand this embodiment, a specific example is used below for description.

[0047] For example, in one case, the factor described above can be the coil width of the strip material, that is, the similarity algorithm can be used to calculate the relative distance between the coil width corresponding to each historical strip and the coil width corresponding to the target strip, and use this to describe the similarity in coil width between the target strip and the historical strip.

[0048] Specifically, the relative distance between the coil width of the historical steel strip and the coil width of the target steel strip can be calculated by the following formula (1):

[0049]

[0050] Among them, strip1 represents the coil width of the target strip; strip2 represents the coil width of a certain historical strip.

[0051] For example, when the coil width of the target steel strip is 1040 mm and the coil width of a certain historical steel strip is 1120 mm, the relative distance between the coil width of the historical steel strip and the coil width of the target steel strip is ((1040-1120) / 1040) 2 =0.005917.

[0052] In the present application, the relative distance between the coil width of the historical steel strip and the coil width of the target steel strip can also be calculated by the following formula (2):

[0053] Coil width relative distance = |strip1-strip2| (2)

[0054] Among them, strip1 represents the coil width of the target strip; strip2 represents the coil width of a certain historical strip.

[0055] For example, when the coil width of the target steel strip is 1040 mm and the coil width of a certain historical steel strip is 1120 mm, the relative distance between the coil width of the historical steel strip and the coil width of the target steel strip is |1040-1120|=80.

[0056] Based on the above examples, it should be understood by those skilled in the art that there are many ways to calculate the relative distance between the factor parameters of the historical steel strip and the factor parameters of the target steel strip, and this application does not limit this.

[0057] In such Figure 2In the step 122, the relative distances between each historical steel strip and the target steel strip on the at least one factor are summed up respectively, which can be explained by the following example.

[0058] For example, at least one factor between a target steel strip and a historical steel strip includes three factors, namely, the coil width, coil hardness, and coil carbon content of the steel strip material, wherein the relative distance between the target steel strip and the historical steel strip in terms of coil width is 0.01, the relative distance between the target steel strip and the historical steel strip in terms of coil hardness is 0.004, and the relative distance between the target steel strip and the historical steel strip in terms of coil carbon content is 0.006. Then, the relative distances between the historical steel strip and the target steel strip in terms of the above three factors are summed to obtain the sum of the relative distances of the factors: 0.01+0.004+0.006=0.02.

[0059] In the present application, the sum of the relative distances of the factors corresponding to each historical steel strip can be used as the similarity between the target steel strip and each historical steel strip. It can be understood that the smaller the sum of the relative distances of the factors between the historical steel strip and the target steel strip, the higher the similarity between the historical steel strip and the target steel strip.

[0060] Continue to refer to Figure 1 In step 130, at least one target historical steel strip is selected from each historical steel strip based on the similarity.

[0061] In such Figure 1 In one embodiment of step 130, selecting at least one target historical steel strip from each historical steel strip may be selecting a historical steel strip with the highest similarity from each historical steel strip as the target historical steel strip.

[0062] In such Figure 1 In one embodiment of step 130, selecting at least one target historical steel strip from each historical steel strip may be selecting two historical steel strips with the highest similarity from each historical steel strip as the target historical steel strips.

[0063] It is understandable that the present application does not limit the number of selected target historical steel strips, that is, the number of target historical steel strips can be determined according to actual needs.

[0064] Since the similarity between the selected target historical strip and the target strip is the highest, the recommended width margin corresponding to the target historical strip is most consistent with the width margin of the target strip, thereby making the width margin of the target strip determined in the subsequent process based on the recommended width margin corresponding to the target historical strip more accurate.

[0065] Continue to refer to Figure 1In step 140, the strip width margin of the target strip is controlled based on the recommended width margin of the at least one target historical strip.

[0066] In the present application, after selecting at least one target historical steel strip that is most similar to the target steel strip from each historical steel strip, the recommended width margin corresponding to the at least one target historical steel strip (i.e., the optimal width margin corresponding to each target historical steel strip) can be obtained from the historical database.

[0067] In such Figure 1 In one embodiment of step 140, based on the recommended width margin of the at least one target historical strip, the strip width margin of the target strip can be controlled as follows: Figure 3 Follow the steps shown.

[0068] See also Figure 3 , shows a detailed flow chart of controlling the strip width margin of the target strip based on the recommended width margin of at least one target historical strip in one embodiment of the present application. Specifically including steps 141 to 142:

[0069] Step 141, averaging the recommended width margins of the at least one target historical strip to obtain a set width margin.

[0070] Step 142: Control the strip width margin of the target strip based on the set width margin.

[0071] For example, five target historical steel strips that are most similar to the target steel strips are selected from each historical steel strip, and the recommended width margins corresponding to the five target historical steel strips are 5 distance units, 4 distance units, 6 distance units, 3 distance units, and 2 distance units, respectively. Then, the recommended width margins of the above five target historical steel strips are averaged, and the set width margin is obtained as: (5+4+6+3+2) / 5=3 distance units.

[0072] In such Figure 1 In other embodiments of step 140 shown, the weighted sum of the recommended width margins may also be calculated according to the weighted ratios set for the various target historical steel strips, thereby obtaining the set width margin.

[0073] For example, five target historical steel strips that are most similar to the target steel strips are selected from each historical steel strip, wherein the recommended width margins corresponding to the five target historical steel strips are 5 distance units, 4 distance units, 6 distance units, 3 distance units, and 2 distance units, respectively. In order of similarity from high to low, the weighted proportions allocated to the five target historical steel strips are 0.3, 0.25, 0.2, 0.15, and 0.1, respectively. Then, the weighted sum of the recommended width margins of the above five target historical steel strips is calculated, and the set width margin is obtained as: 5×0.3+4×0.25+6×0.2+3×0.15+2×0.1=4.35 distance units.

[0074] After the set width margin is obtained, the strip width margin of the target strip can be controlled based on the set width margin.

[0075] Furthermore, in Figure 3 In one embodiment of step 142 shown, the strip width margin of the target strip is controlled based on the set width margin, and the set width margin may be sent to a steel rolling control system so that the steel rolling control system controls the steel rolling equipment to roll the target strip according to the set width margin.

[0076] It can be seen that, through the technical solution proposed in the present application, by obtaining the recommended width margin of at least one target historical strip steel similar to the target strip steel from the historical database, and determining the set width margin based on the obtained recommended width margin, the strip steel width margin of the target strip steel can be controlled based on the set width margin. Since in the entire process of determining the set width margin, the recommended width margin of the target historical strip steel similar to the target strip steel in the historical database is used as a reference, the width margin of the rolling target strip steel is adaptively adjusted and automatically controlled, thereby improving the control accuracy and control efficiency of the width margin of the target strip steel, thereby improving the strip steel production efficiency.

[0077] In this application, Figure 1 After step 140, that is, after the strip width margin of the target strip is controlled based on the recommended width margin of the at least one target historical strip, the following steps may also be performed: Figure 4 Steps shown.

[0078] See also Figure 4 , shows a flow chart of a further control method of the strip width margin in one embodiment of the present application. Specifically comprising steps 150 to 180:

[0079] Step 150, tracking the actual width margin at each position in the target steel strip in real time from the steel rolling equipment.

[0080] Step 160, obtaining the upper limit width margin and the lower limit width margin of the steel rolling equipment during steel rolling.

[0081] Step 170, self-learning a recommended width margin corresponding to the target steel strip according to the actual width margin at each position in the target steel strip, the upper limit width margin, and the lower limit width margin.

[0082] Step 180, storing the factor parameters of the target steel strip on the at least one factor and the recommended width margin corresponding to the target steel strip in the historical database for controlling the rolling width margin when rolling a new target steel strip next time.

[0083] For those skilled in the art, it should be understood that due to some unstable factors in the rolling equipment or environment, when the steel rolling control system controls the steel rolling according to the set width margin, it cannot guarantee that the width margin at each position of the strip is maintained at the set width margin, and the actual situation should be floating around the set width margin. Therefore, the actual width margin at each position of the target strip can be tracked in real time from the steel rolling equipment.

[0084] In this application, the upper limit width margin refers to the maximum width margin that can be tolerated during steel rolling, that is, when the upper limit width margin is exceeded, the risk of wasting the strip steel will be greatly increased. The lower limit width margin refers to the minimum width margin that can be tolerated during steel rolling, that is, when the lower limit width margin is exceeded, the risk of the strip steel being unusable during steel rolling will be greatly increased.

[0085] In this application, Figure 4 In one embodiment of step 170, according to the actual width margin at each position in the target strip, the upper limit width margin, and the lower limit width margin, the recommended width margin corresponding to the target strip can be self-learned according to Figure 5 Follow the steps shown.

[0086] See also Figure 5 , shows a detailed flow chart of self-learning the recommended width margin corresponding to the target strip in one embodiment of the present application. Specifically, it includes steps 171 to 174:

[0087] Step 171: Generate a reference width margin curve in a two-dimensional coordinate system based on the actual width margin at each position in the target steel strip.

[0088] Step 172 : translating the reference width margin curve to obtain a plurality of candidate width margin curves including the reference width margin curve.

[0089] Step 173 : selecting a recommended width margin curve in a region defined by the upper width margin and the lower width margin in the two-dimensional coordinate system.

[0090] Step 174: Determine a recommended width margin corresponding to the target steel strip based on the recommended width margin curve.

[0091] In order to make those skilled in the art better understand this embodiment, Figure 6 Provide explanation.

[0092] See also Figure 6 , which shows a schematic diagram of a width margin curve in one embodiment of the present application.

[0093] like Figure 6 As shown, in the two-dimensional coordinate system shown in the figure, line segment 601 is the upper limit width margin, curve 602 is the reference width margin curve (that is, the actual width margin curve of the strip steel), line segment 604 is the lower limit width margin, and line segment 605 is a line segment with a width margin of 0. Figure 6 It can be seen that controlling the strip width margin of the target strip according to the set width margin is not the optimal solution. In the case of the optimal solution, the minimum value on the actual width margin curve should be close to line segment 604, and the maximum value on the actual width margin curve should be close to line segment 601. Based on this, among the multiple candidate width margin curves obtained by translating the benchmark width margin curve, only curve 603 in the area defined by the upper limit width margin and the lower limit width margin meets this optimal situation. Therefore, curve 603 is selected as the recommended width margin curve, and based on the recommended width margin curve, the recommended width margin corresponding to the target strip is determined.

[0094] Furthermore, in one implementation, the recommended width margin corresponding to the target strip is determined based on the recommended width margin curve. The maximum and minimum values ​​on the recommended width margin curve can be first determined, and then the maximum and minimum values ​​are averaged, and the calculated average value is learned as the recommended width margin corresponding to the target strip.

[0095] In another way, the recommended width margin corresponding to the target strip is determined based on the recommended width margin curve, or a predetermined number of sampling points are sampled on the recommended width margin curve, and then the width margin values ​​corresponding to the predetermined number of sampling points are averaged, and the calculated average value is learned as the recommended width margin corresponding to the target strip.

[0096] It can be understood that there may be many specific implementation methods for determining the recommended width margin corresponding to the target strip based on the recommended width margin curve, and the present application does not limit this.

[0097] In the present application, after self-learning the recommended width margin corresponding to the target steel strip, the factor parameters of the target steel strip on the at least one factor and the recommended width margin corresponding to the target steel strip can be stored in the historical database for controlling the rolling width margin when rolling a new target steel strip next time.

[0098] It can be seen that through the technical solution proposed in the present application, by storing the self-learning recommended width margin corresponding to the target strip into the historical database, the next time a new target strip similar to the target strip is rolled, the recommended width margin corresponding to the target strip can be used as an important reference for controlling the width margin of the new target strip, thereby improving the control accuracy and control efficiency of the width margin of the new target strip, and further improving the strip production efficiency.

[0099] In order to make those skilled in the art better understand the present application, Figure 7 The system architecture for implementing the strip width allowance control method is briefly described.

[0100] See also Figure 7 , shows a system architecture diagram of a method for controlling the width margin of a strip steel in one embodiment of the present application.

[0101] like Figure 7 As shown, the control device 710 includes a self-learning module 711, a historical data module 712, and a preset module 713. On the one hand, first, the preset module 713 obtains the recommended width margin of at least one target historical strip from the historical data module 712, and then determines a set width margin based on the recommended width margin of at least one target historical strip, and sends the set width margin to the rolling control system 720, so that the rolling control system 720 controls the rolling equipment to roll the target strip according to the set width margin. On the other hand, the self-learning module 711 in the control device 710 obtains the actual width margin of the rolling equipment during the strip process from the rolling control system 720 in real time, and learns the recommended width margin corresponding to the target strip based on the actual width margin, and stores the recommended margin in the historical database 712 for controlling the rolling width margin when rolling a new target strip next time.

[0102] The following introduces an embodiment of the device of the present application, which can be used to execute the control method of the strip width margin in the above-mentioned embodiment of the present application.

[0103] Figure 8 A diagram of a control device for the width margin of a steel strip in one embodiment of the present application is shown, wherein the control device 800 includes: an acquisition unit 801 , a determination unit 802 , a selection unit 803 and a control unit 804 .

[0104] Among them, the acquisition unit is used to obtain the factor parameters of the target strip on at least one factor, and to obtain the factor parameters of each historical strip on the at least one factor in the historical database; the determination unit is used to determine the similarity between the target strip and each historical strip according to the factor parameters of each historical strip and the factor parameters of the target strip; the selection unit is used to select at least one target historical strip from each historical strip based on the similarity; the control unit is used to control the strip width margin of the target strip based on the recommended width margin of the at least one target historical strip.

[0105] Fig. 9 A schematic diagram of the structure of a computer system suitable for implementing an electronic device of an embodiment of the present application is shown.

[0106] It should be noted that Fig. 9 The computer system 900 of the electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0107] like Fig. 9 As shown, the computer system 900 includes a central processing unit (CPU) 901, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 902 or the program loaded from the storage part 908 to the random access memory (RAM) 903, such as executing the control method of the strip width margin described in the above embodiment. In RAM 903, various programs and data required for system operation are also stored. CPU 901, ROM 902 and RAM 903 are connected to each other through a bus 904. Input / output (I / O) interface 905 is also connected to bus 904.

[0108] The following components are connected to the I / O interface 905: an input section 906 including a keyboard, a mouse, etc.; an output section 907 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 908 including a hard disk, etc.; and a communication section 909 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 909 performs communication processing via a network such as the Internet. A drive 910 is also connected to the I / O interface 905 as needed. A removable medium 911, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 910 as needed so that a computer program read therefrom is installed into the storage section 908 as needed.

[0109] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication section 909, and / or installed from a removable medium 911. When the computer program is executed by a central processing unit (CPU) 901, various functions defined in the system of the present application are executed.

[0110] It should be noted that the computer-readable medium shown in the embodiment of the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, - but not limited to - an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by an instruction execution system, device or device or used in combination with it. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, wherein a computer-readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0111] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the system, method and computer program product according to various embodiments of the present application. Wherein, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0112] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0113] As another aspect, the present application further provides a computer program product or a computer program, the computer program product or the computer program including computer instructions, the computer instructions being stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device executes the control method for the strip width margin described in the above embodiment.

[0114] As another aspect, the present application further provides a computer-readable medium, which may be included in the electronic device described in the above embodiment; or may exist independently without being assembled into the electronic device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by an electronic device, the electronic device implements the control method of the strip width margin described in the above embodiment.

[0115] It should be noted that, although several modules or units of the equipment for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into being embodied by multiple modules or units.

[0116] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the embodiment of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the control method of the strip width margin described in the above embodiment.

[0117] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application.

[0118] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A method for controlling the width margin of a strip steel, characterized in that: The method comprises: Obtaining factor parameters of the target steel strip on at least one factor, and obtaining factor parameters of each historical steel strip on the at least one factor in a historical database; Determining the similarity between the target steel strip and each of the historical steel strips according to the factor parameters of each of the historical steel strips and the factor parameters of the target steel strip; Selecting at least one historical steel strip with the highest similarity from among the historical steel strips as a target historical steel strip; averaging the recommended width margins of the at least one target historical strip to obtain a set width margin; The set width margin is sent to a steel rolling control system, so that the steel rolling control system controls the steel rolling equipment to roll the target steel strip according to the set width margin.

2. The method according to claim 1, characterized in that Determining the similarity between the target steel strip and each historical steel strip according to the factor parameters of each historical steel strip and the factor parameters of the target steel strip includes: Relative distances between factor parameters of each historical steel strip and factor parameters of the target steel strip are calculated respectively, to obtain a relative distance between each historical steel strip and the target steel strip on at least one factor; The relative distances of factors between each historical steel strip and the target steel strip on the at least one factor are summed up respectively to obtain the sum of the relative distances of factors corresponding to each historical steel strip, and the sum of the relative distances of factors corresponding to each historical steel strip is used as the similarity between the target steel strip and each historical steel strip.

3. The method according to claim 1, characterized in that The method further comprises: Tracking the actual width margin at each position of the target steel strip in real time from the steel rolling equipment; Obtaining an upper limit width margin and a lower limit width margin of the steel rolling equipment during steel rolling; According to the actual width margin at each position in the target steel strip, the upper limit width margin, and the lower limit width margin, self-learning a recommended width margin corresponding to the target steel strip; The factor parameters of the target steel strip on the at least one factor and the recommended width margin corresponding to the target steel strip are stored in the historical database for controlling the rolling width margin when rolling a new target steel strip next time.

4. The method according to claim 3, characterized in that The self-learning of the recommended width margin corresponding to the target steel strip according to the actual width margin at each position in the target steel strip, the upper limit width margin, and the lower limit width margin includes: Based on the actual width margins at various positions in the target strip, a reference width margin curve is generated in a two-dimensional coordinate system; translating the reference width margin curve to obtain a plurality of candidate width margin curves including the reference width margin curve; Selecting a recommended width margin curve in a region defined by the upper width margin and the lower width margin in the two-dimensional coordinate system; Based on the recommended width margin curve, a recommended width margin corresponding to the target steel strip is determined.

5. A device for controlling the width allowance of a strip steel, characterized in that: The device comprises: An acquisition unit, used to acquire factor parameters of the target steel strip on at least one factor, and to acquire factor parameters of each historical steel strip on the at least one factor in a historical database; A determination unit, configured to determine the similarity between the target steel strip and each of the historical steel strips according to the factor parameters of each of the historical steel strips and the factor parameters of the target steel strip; A selection unit, configured to select at least one historical steel strip with the highest similarity from among the historical steel strips as a target historical steel strip; A control unit is used to average the recommended width margins of at least one target historical strip to obtain a set width margin; and send the set width margin to a steel rolling control system so that the steel rolling control system controls the steel rolling equipment to roll the target strip according to the set width margin.

6. An electronic device, characterized in that: The electronic device includes one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by the strip width margin control method as described in any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that: At least one program code is stored in the computer-readable storage medium, and the at least one program code is loaded and executed by the processor to implement the operations performed by the method for controlling the width margin of the strip steel as described in any one of claims 1 to 4.

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