Hot rolling control method, device and equipment, storage medium and product

Abstract

The invention provides a hot rolling control method, device and equipment, a storage medium and a product. The method is applied to a hot rolling control system, the hot rolling control system comprises a first-stage control system and a second-stage control system, and the method comprises the steps that the head thickness state of target strip steel is obtained; determining the head thickness deviation of the target strip steel according to the head thickness state; determining a target moving value based on the head thickness deviation through the secondary control system; calculating a corresponding thickness target value according to the target moving value; and a thickness target value is issued to the first-stage control system through the second-stage control system, and hot rolling control is carried out.

Description

Technical Field

[0001] The present application relates to the field of metal processing technology, and in particular to a hot rolling control method, device, equipment, storage medium and product. Background Art

[0002] In the steel processing process, precise control of rolling thickness is one of the key factors to ensure product quality, especially for high-end application fields such as automobile and aviation industries, which have extremely high requirements for material thickness uniformity and precision. During the hot rolling process, due to factors such as uneven heating of the material and inertia of the rolling mill starting and stopping, there is often a large thickness deviation at the head end of the rolled piece.

[0003] The sampling time of the traditional rolling mill control system is to start sampling after the instrument detects the signal of the strip head, that is, part of the actual strip head area is not collected in the sampling thickness. Therefore, it is impossible to effectively control the thickness accuracy of the head end of the rolled piece and cannot meet the high requirements of high-end application fields for the thickness accuracy of the strip head end. Summary of the invention

[0004] The embodiments of the present application provide a hot rolling control method, device, equipment, storage medium and product, which can improve the control accuracy of the hot rolling head end thickness.

[0005] In a first aspect, the present application provides a hot rolling control method, which is applied to a hot rolling control system, wherein the hot rolling control system includes a primary control system and a secondary control system, including:

[0006] Obtain the head thickness status of the target strip;

[0007] Determining the head thickness deviation of the target strip according to the head thickness state;

[0008] Determining a target shift value based on the head thickness deviation through the secondary control system;

[0009] Calculate the corresponding thickness target value according to the target shift value;

[0010] The target thickness value is sent to the primary control system through the secondary control system to perform hot rolling control.

[0011] In some possible implementations, the secondary control system includes a classification storage system, the classification storage system is used to store the head thickness deviation, and the head thickness deviation of the target strip is determined according to the head thickness state, including:

[0012] According to the head thickness state, based on the corresponding width and thickness classification, storing the head thickness deviations under different specifications in the classification storage system;

[0013] The head thickness deviation is regularly updated based on the data screening results.

[0014] In some possible implementations, the sending of the thickness target value to the primary control system through the secondary control system to perform hot rolling control includes:

[0015] Sending a thickness target value to the primary control system through the secondary control system;

[0016] Determine the roll gap size during hot rolling based on a preset rolling gap calculation formula;

[0017] In the primary control system, the roll gap is adjusted according to the thickness target value and the roll gap size to perform hot rolling control.

[0018] In some possible implementations, in the primary control system, adjusting the roll gap according to the thickness target value and the roll gap size to perform hot rolling control includes:

[0019] Determine the rolling gap size according to the difference between the thickness target value and the target shift value and the rolling stiffness during zero adjustment;

[0020] The roll gap is adjusted according to the rolling gap size and the roll gap size to perform hot rolling control.

[0021] In some possible implementations, obtaining the head thickness state of the target steel strip includes:

[0022] Obtain the head thickness data of the target strip;

[0023] According to a preset rule, unusable data in the head thickness data is removed to obtain target head thickness data;

[0024] Classification and statistics are performed based on the target head thickness data to determine the head thickness state of the target strip.

[0025] In some possible implementations, obtaining the head thickness data of the target steel strip includes:

[0026] The thickness value of the target strip head is obtained through the primary control system and the secondary control system;

[0027] The head thickness data of the target steel strip is determined according to the thickness value curve corresponding to the thickness value of the head of the target steel strip.

[0028] In a second aspect, the present application provides a hot rolling control device, the device comprising:

[0029] An acquisition module is used to acquire the head thickness state of the target strip;

[0030] A determination module, used for determining a head thickness deviation of a target strip according to the head thickness state;

[0031] A determination module is further used to determine a target shift value based on the head thickness deviation through the secondary control system;

[0032] A calculation module, used for calculating a corresponding thickness target value according to the target shift value;

[0033] The control module is used to send the thickness target value to the primary control system through the secondary control system to perform hot rolling control.

[0034] In a third aspect, the present application provides a hot rolling control device, the device comprising: a processor, and a memory storing computer program instructions; the processor reads and executes the computer program instructions to implement the hot rolling control method as described above.

[0035] In a fourth aspect, the present application provides a computer-readable storage medium having computer program instructions stored thereon, and the computer program instructions, when executed by a processor, implement the hot rolling control method as described above.

[0036] In a fifth aspect, the present application provides a computer program product, and when the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the hot rolling control method described above.

[0037] The hot rolling control method, device, equipment, storage medium and product provided in the embodiments of the present application obtain the head thickness state of the target strip, determine the head thickness deviation of the target strip according to the head thickness state, determine the target shift value based on the head thickness deviation through the secondary control system, calculate the corresponding thickness target value according to the target shift value, and send the thickness target value to the primary control system through the secondary control system to perform hot rolling control, which can improve the control accuracy of the hot rolling head end thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present application can be better understood from the following description of the specific embodiments of the present application in conjunction with the accompanying drawings, in which:

[0039] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0040] Figure 1 is a flow chart of a hot rolling control method provided by an embodiment of the present application;

[0041] Figure 2is a flow chart of a hot rolling control method provided by another embodiment of the present application;

[0042] Figure 3 is a flow chart of a hot rolling control method provided by another embodiment of the present application;

[0043] Figure 4 is a schematic structural diagram of a hot rolling control device provided by an embodiment of the present application;

[0044] Figure 5 It is a schematic diagram of the hardware structure of the hot rolling control equipment provided in the embodiment of the present application. DETAILED DESCRIPTION

[0045] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0047] In order to solve the problems of the prior art, the embodiments of the present application provide a hot rolling control method, device, equipment, storage medium and product. The hot rolling control method provided by the embodiments of the present application is first introduced below.

[0048] Figure 1 FIG. 1 is a flow chart of a hot rolling control method provided by an embodiment of the present application. Figure 1 As shown, the above method is applied to a hot rolling control system, and the above hot rolling control system includes a primary control system and a secondary control system. The method includes the following steps: S101 to S105.

[0049] S101: Obtain the head thickness state of the target strip.

[0050] In the specific implementation, the current thickness status of the target strip head needs to be obtained through sensors or measuring equipment. These sensors may include laser thickness gauges, ultrasonic thickness gauges or other high-precision measuring tools. The acquired data will serve as the basis for subsequent control.

[0051] S102: Determine the head thickness deviation of the target strip according to the head thickness state.

[0052] In the specific implementation, the obtained thickness state is compared with the preset thickness target value. By calculating the difference between the two, the system can determine the head thickness deviation. This deviation is a key parameter for control system adjustment and can help the system determine the gap between the current production state and the target state.

[0053] S103: Determine the target shift value based on the head thickness deviation through the secondary control system.

[0054] In the specific implementation, after the thickness deviation is determined, the secondary control system will analyze the deviation value and calculate the target shift value. The target shift value refers to the new target that the system needs to achieve when making subsequent adjustments. This value is usually calculated through an algorithm model to minimize the error while ensuring system stability.

[0055] S104: Calculate the corresponding thickness target value according to the above target shift value.

[0056] In the specific implementation, according to the target shift value, the system will further calculate the final thickness target value. This process may take into account factors such as material characteristics, actual operating status of the rolling mill, and historical data to ensure that the obtained thickness target value is reasonable and achievable.

[0057] S105: Sending the target thickness value to the primary control system through the secondary control system to perform hot rolling control.

[0058] In the specific implementation, the thickness target value calculated through the above steps will be transmitted to the primary control system. The primary control system is usually responsible for the overall hot rolling process, including the coordination of each unit. After receiving the thickness target value, the primary control system will adjust according to this target and implement the corresponding control strategy to ensure that the hot rolling process meets the requirements, thereby ultimately achieving the target strip thickness control.

[0059] The hot rolling control method provided in the embodiment of the present application obtains the head thickness state of the target strip, determines the head thickness deviation of the target strip according to the head thickness state, determines the target shift value based on the head thickness deviation through the secondary control system, calculates the corresponding thickness target value according to the target shift value, and sends the thickness target value to the primary control system through the secondary control system to perform hot rolling control, which can improve the control accuracy of the hot rolling head end thickness.

[0060] In order to improve the reliability of data, in some embodiments, the secondary control system includes a classification storage system, and the classification storage system is used to store the head thickness deviation. The above S102 may include the following steps: S1021 to S1022.

[0061] S1021: According to the above-mentioned head thickness state, based on the corresponding width and thickness classification, the head thickness deviations under different specifications are stored in the above-mentioned classification storage system.

[0062] In the specific implementation, the current head thickness status is obtained from the sensor or measuring device, and preliminary data processing is performed. This step may include data denoising and standardization to ensure data accuracy. According to the head thickness status, combined with the width and thickness standards of the strip, the data is classified. The head thickness deviation under different specifications is stored in the form of a table or document. Each specification category has its own unique identifier for subsequent retrieval. The processed head thickness deviation value is stored in the database according to its classification information.

[0063] S1022: Regularly update the head thickness deviation based on the data screening results.

[0064] In the specific implementation, regular time intervals are set for data screening. The screening content includes checking the changing trend of head thickness deviation, outlier detection, etc. During each screening process, the system extracts the existing head thickness deviation data from the classification storage system. Use algorithms to analyze data changes, such as calculating moving averages or using standard deviations to determine whether data fluctuations exceed the normal range. Based on the screening results, the system can decide whether to update the stored head thickness deviation value. If it is found that the new measurement value deviates significantly from the existing deviation, the system should update the deviation value under this specification according to a certain strategy (such as weighted average). The updated deviation value needs to be stored back in the classification storage system to ensure the real-time and accuracy of the data. The update process also needs to record timestamps to track data history.

[0065] The hot rolling control method provided in the embodiment of the present application stores the head thickness deviations under different specifications in the above classification storage system according to the above head thickness state and based on the corresponding width and thickness classification, and regularly updates the above head thickness deviations according to the data screening results. The classification storage system realizes the effective management and update of the head thickness deviation in the secondary control system. This not only improves the reliability of the data, but also provides an accurate basis for subsequent control decisions.

[0066] In order to improve the control efficiency of the hot rolling process, in some embodiments, as Figure 2 As shown, the above S105 may include the following steps: S1051 to S1053.

[0067] S1051: Sending the thickness target value to the primary control system through the secondary control system.

[0068] In the specific implementation, in the secondary control system, the current head thickness deviation data and the final thickness target value need to be collected and confirmed first. These data come from the previous measurement and analysis steps. The secondary control system needs to establish a connection with the primary control system through a preset communication protocol. Ensure the reliability and real-time performance of data transmission. Pack the thickness target value and related information into a data packet. The data packet should conform to the format required by the primary control system for easy parsing. Use the established communication interface to send the packaged data packet to the primary control system. The system needs to confirm that the data is sent successfully and resend it if necessary.

[0069] S1052: Determine the roll gap size during the hot rolling process based on a preset rolling gap calculation formula.

[0070] In the specific implementation, the first-level control system first obtains the current rolling conditions and related parameters, including material properties, initial thickness of the strip, and temperature, etc. The preset rolling gap calculation formula is used. The collected parameters are substituted into the formula for calculation to obtain the roll gap size in the current rolling process.

[0071] S1053: In the primary control system, the roll gap is adjusted according to the above-mentioned thickness target value and the above-mentioned roll gap size to perform hot rolling control.

[0072] In the specific implementation, the primary control system formulates a roll gap adjustment strategy based on the received thickness target value and the calculated roll gap size. The strategy should take into account the current rolling speed, material properties and equipment status. The system performs roll gap adjustment through control instructions. During the adjustment process, the system should monitor the roll gap size and rolling status in real time to correct any deviations in time. After the adjustment is completed, the system needs to obtain the thickness of the rolled strip again and compare it with the thickness target value to perform hot rolling control.

[0073] The hot rolling control method provided in the embodiment of the present application sends the thickness target value to the primary control system through the secondary control system, determines the roll gap size during the hot rolling process based on the preset rolling gap roll gap calculation formula, and adjusts the roll gap in the primary control system according to the thickness target value and the roll gap size to perform hot rolling control, thus realizing the whole process from setting the thickness target value to adjusting the roll gap. Each step ensures the accurate transmission of information, the precise execution of calculations, and the real-time feedback of adjustments, thereby effectively improving the control efficiency of the hot rolling process.

[0074] In order to ensure the stability of the hot rolling process, in some embodiments, the above S1053 may include the following steps: S10531 to S10532.

[0075] S10531: Determine the rolling gap size based on the difference between the above-mentioned thickness target value and the above-mentioned target shift value and the rolling stiffness during zero adjustment.

[0076] In the specific implementation, firstly, relevant parameters are obtained from the control system, such as the thickness target value, the target shift value and the rolling stiffness during zero adjustment, and the rolling gap size is calculated using the formula.

[0077] S10532: Adjust the roll gap according to the above rolling gap size and the above roll gap size to perform hot rolling control.

[0078] In a specific implementation, the current roll gap size is obtained, the required adjustment amplitude is calculated according to the rolling gap size and the current roll gap size, and a specific adjustment command is generated through the control module to perform precise adjustment.

[0079] The hot rolling control method provided in the embodiment of the present application determines the rolling gap size according to the difference between the above-mentioned thickness target value and the above-mentioned target shift value and the rolling stiffness during zero adjustment, adjusts the roll gap according to the above-mentioned rolling gap size and the above-mentioned roll gap size, and performs hot rolling control, thereby achieving precise control of the rolling gap and the roll gap, and ensuring the stability of the hot rolling process and the product quality through data acquisition, calculation and execution adjustment.

[0080] In order to ensure that the final head thickness state is accurate, in some embodiments, reference Figure 3 The above S101 may include the following steps: S1011 to S1013.

[0081] S1011: Obtain the head thickness data of the target strip.

[0082] In the specific implementation, the data source is first determined, which usually comes from a real-time monitoring system, sensor or historical database. These data sources regularly provide the head thickness information of the target strip, connect with the sensor, and read the head thickness data in real time.

[0083] S1012: Remove unusable data from the head thickness data according to a preset rule to obtain target head thickness data.

[0084] In the specific implementation, preprocessing rules are set, which may include: threshold check: remove values ​​below or above a specific range (for example, thickness less than 0 or greater than the maximum tolerance); duplicate value filtering: identify and remove the same thickness data repeated in a short period of time to prevent data redundancy; outlier detection: use statistical methods (such as standard deviation method) to identify and remove outliers. Apply preset rules to clean the collected head thickness data. In this process, the data will be checked one by one, and the data that meets the rules will be retained, and those that do not meet the rules will be discarded. The cleaned data forms a new data set, which contains all valid target head thickness data.

[0085] S1013: Classify and count the target head thickness data to determine the head thickness state of the target strip.

[0086] In the specific implementation, the classification standard is set, such as the segmented interval, that is, classification according to different thickness ranges, and the quality standard, that is, the classification of qualified and unqualified thicknesses according to the enterprise standard or customer requirements. By traversing the valid target head thickness data, the data is classified according to the predetermined classification rules. The specific method can be implemented using simple conditional statements and counters. For each thickness value, the corresponding counter is incremented according to the interval or category to which it belongs to determine the head thickness status of the target strip.

[0087] The hot rolling control method provided in the embodiment of the present application obtains the head thickness data of the target strip, removes the unusable data in the head thickness data according to preset rules, obtains the target head thickness data, and performs classification and statistics based on the target head thickness data to determine the head thickness state of the target strip, thereby realizing the acquisition, cleaning and classification and statistics of the head thickness data of the target strip, and ensuring that the head thickness state finally obtained is accurate and reliable.

[0088] In order to improve the accuracy of measurement, in some implementations, the above S1011 may include the following steps: S10111 to S10112.

[0089] S10111: Obtain the thickness value of the target strip head through the primary control system and the secondary control system.

[0090] In specific implementation, the primary control system is usually responsible for direct control of field equipment, while the secondary control system is responsible for data acquisition, monitoring, and execution of advanced control logic. The primary control system periodically reads thickness data through real-time communication with the sensor. This process can be achieved through analog or digital signals. The received thickness data may need to be converted into a unified format, and the formatted data is stored in a database or data buffer for further processing and analysis.

[0091] S10112: Determine the head thickness data of the target strip according to the thickness value curve corresponding to the thickness value of the head of the target strip.

[0092] In specific implementation, during the production process, a curve of the target thickness value is usually established based on historical data or production process requirements. These curves can be based on empirical formulas, simulation results, or experimental data. An algorithm is designed to match the real-time collected head thickness value with the preset thickness value curve. If the real-time thickness value is between two known points on the curve, the software can use linear interpolation or other interpolation methods to estimate the target value, and judge its position in the curve based on the actual thickness value to see if it meets the predetermined production standards. Through the matching algorithm, the software associates the real-time thickness value with the target value in the thickness curve. For example, if the current measured thickness is 3.5mm, and the curve shows that the target value under this condition is 4.0mm, then this difference is recorded to determine the head thickness data of the target strip.

[0093] The hot rolling control method provided in the embodiment of the present application obtains the thickness value of the target strip head through the primary control system and the secondary control system, determines the head thickness data of the target strip according to the thickness value curve corresponding to the thickness value of the target strip head, obtains the head thickness value of the target strip from the primary and secondary control systems, and determines the final thickness target value data according to the thickness value curve. This process not only improves the accuracy of measurement, but also provides strong data support for the optimization and control of the production process.

[0094] In one embodiment of the present application, in order to ensure the overall stability of the strip and avoid interference caused by false signals, the finishing rolling force and temperature model of the secondary machine generally starts sampling after the thickness gauge measures the strip. Therefore, the real rolling force, temperature, and thickness status of the finished product at the head end are blind boxes for the secondary system, so the traditional secondary self-learning method cannot be used to eliminate the abnormal thickness of the head end. At this time, other systems need to intervene to prompt the secondary system with the real thickness status of the strip head end. For example, through the real-time curve tracking of the actual strip head thickness status, or through the quality warning information given by the full-process quality judgment system, the thickness status trend of the corresponding specifications is obtained through big data analysis (such as normal, easy to be thick, easy to be thin, the head end thickness is thick first and then thin, the head end thickness is thin first and then thick, etc.).

[0095] A classification storage system is built inside the secondary control system to store the head thickness deviation. Based on the previously acquired data, unusable data (for example, the head end thickness is thick first and then thin, the head end thickness is thin first and then thick, etc.) should be deleted. The remaining data is classified and counted according to the above table, and the average value is filled into the system. The data needs to be updated regularly afterwards, for example, directly updated after screening through big data analysis or updated after manual evaluation. The rolling gap and roll gap calculation formula of the secondary system is: thickness target value-target shift value-rolling stiffness during zero adjustment. The thickness target value of the primary system remains unchanged. Ultimately, the goal of controlled thickness deviation is achieved.

[0096] Based on the hot rolling control method provided in the above embodiment, the present application also provides a specific implementation of a hot rolling control device. Please refer to the following embodiment.

[0097] See first Figure 4 The hot rolling control device 400 provided in the embodiment of the present application includes the following modules:

[0098] The acquisition module 401 is used to acquire the head thickness state of the target strip.

[0099] The determination module 402 is used to determine the head thickness deviation of the target strip according to the head thickness state.

[0100] The determination module 402 is further used to determine the target shift value based on the head thickness deviation through the secondary control system.

[0101] The calculation module 403 is used to calculate the corresponding thickness target value according to the above target shift value.

[0102] The control module 404 is used to send the thickness target value to the above-mentioned primary control system through the above-mentioned secondary control system to perform hot rolling control.

[0103] The hot rolling control device provided in the embodiment of the present application obtains the head thickness state of the target strip, determines the head thickness deviation of the target strip according to the head thickness state, determines the target shift value based on the head thickness deviation through the secondary control system, calculates the corresponding thickness target value according to the target shift value, and sends the thickness target value to the primary control system through the secondary control system to perform hot rolling control, which can improve the control accuracy of the hot rolling head end thickness.

[0104] As an implementation of the present application, the determination module 402 further includes:

[0105] The storage unit is used to store the head thickness deviations under different specifications in the above-mentioned classification storage system according to the above-mentioned head thickness state and based on the corresponding width and thickness classification.

[0106] The updating unit is used to regularly update the head thickness deviation according to the data screening result.

[0107] As an implementation of the present application, the control module 404 further includes:

[0108] The sending unit is used to send the thickness target value to the above-mentioned primary control system through the above-mentioned secondary control system.

[0109] The determination unit is used to determine the roll gap size during the hot rolling process based on a preset rolling gap calculation formula.

[0110] The control unit is used to adjust the roll gap according to the above-mentioned thickness target value and the above-mentioned roll gap size in the primary control system to perform hot rolling control.

[0111] As an implementation of the present application, the control unit further includes:

[0112] The determination subunit is used to determine the rolling gap size according to the difference between the above-mentioned thickness target value and the above-mentioned target shift value and the rolling stiffness during zero adjustment.

[0113] The control subunit is used to adjust the roll gap according to the above rolling gap size and the above roll gap size to perform hot rolling control.

[0114] As an implementation of the present application, the acquisition module 401 further includes:

[0115] The acquisition unit is used to acquire the head thickness data of the target strip.

[0116] The removing unit is used to remove the unusable data in the head thickness data according to a preset rule to obtain the target head thickness data.

[0117] A determination unit is used to perform classification statistics based on the target head thickness data to determine the head thickness state of the target strip.

[0118] As an implementation of the present application, the acquisition unit further includes:

[0119] The acquisition subunit is used to acquire the thickness value of the head of the target strip through the primary control system and the secondary control system.

[0120] The determination subunit is used to determine the head thickness data of the target strip according to the thickness value curve corresponding to the thickness value of the head of the target strip.

[0121] Each module in the hot rolling control device provided in the embodiment of the present application can implement each step in the above-mentioned hot rolling control method and achieve the corresponding effect. For the sake of concise description, it will not be repeated here.

[0122] Figure 5A schematic diagram of the structure of the hot rolling control hardware provided in an embodiment of the present application is shown.

[0123] The hot rolling control device may include a processor 501 and a memory 502 storing computer program instructions.

[0124] Specifically, the processor 501 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0125] The memory 502 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 502 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In appropriate cases, the memory 502 may include a removable or non-removable (or fixed) medium. In appropriate cases, the memory 502 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 502 is a non-volatile solid-state memory.

[0126] The memory may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical or other physical / tangible memory storage device. Therefore, generally, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., a memory device) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the hot rolling control method according to any one embodiment of the present disclosure.

[0127] The processor 501 implements any one of the hot rolling control methods in the above embodiments by reading and executing computer program instructions stored in the memory 502 .

[0128] In one example, the hot rolling control device may further include a communication interface 503 and a bus 510. Figure 5 As shown, the processor 501, the memory 502, and the communication interface 503 are connected via a bus 510 and communicate with each other.

[0129] The communication interface 503 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0130] Bus 510 includes hardware, software or both, and the parts of online data flow billing equipment are coupled to each other. For example, but not limitation, bus may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front-end bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 510 may include one or more buses. Although the present application embodiment describes and shows a specific bus, the present application considers any suitable bus or interconnection.

[0131] In addition, in combination with the hot rolling control method in the above embodiment, the embodiment of the present application can provide a computer storage medium for implementation. The computer storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the hot rolling control methods in the above embodiment is implemented.

[0132] An embodiment of the present application also provides a computer program product, including a computer program, which, when processed and executed, implements any one of the hot rolling control methods in the above embodiments.

[0133] It should be clear that the present application is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.

[0134] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0135] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0136] Aspects of the present disclosure are described above with reference to the flowchart and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit. It can also be understood that each box in the block diagram and / or flowchart and the combination of boxes in the block diagram and / or flowchart can also be implemented by dedicated hardware that performs a specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0137] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A hot rolling control method, characterized in that: The method is applied to a hot rolling control system, the hot rolling control system includes a primary control system and a secondary control system, and the method includes: Obtain the head thickness status of the target strip; Determining the head thickness deviation of the target strip according to the head thickness state; Determining a target shift value based on the head thickness deviation through the secondary control system; Calculate the corresponding thickness target value according to the target shift value; The target thickness value is sent to the primary control system through the secondary control system to perform hot rolling control.

2. The hot rolling control method according to claim 1, characterized in that: The secondary control system includes a classification storage system, and the classification storage system is used to store the head thickness deviation. The head thickness deviation of the target strip is determined according to the head thickness state, including: According to the head thickness state, based on the corresponding width and thickness classification, storing the head thickness deviations under different specifications in the classification storage system; The head thickness deviation is regularly updated based on the data screening results.

3. The hot rolling control method according to claim 1, characterized in that: The step of sending a thickness target value to the primary control system through the secondary control system to perform hot rolling control includes: Sending a thickness target value to the primary control system through the secondary control system; Determine the roll gap size during hot rolling based on a preset rolling gap calculation formula; In the primary control system, the roll gap is adjusted according to the thickness target value and the roll gap size to perform hot rolling control.

4. The hot rolling control method according to claim 3, characterized in that: In the primary control system, the roll gap is adjusted according to the thickness target value and the roll gap size to perform hot rolling control, including: Determine the rolling gap size according to the difference between the thickness target value and the target shift value and the rolling stiffness during zero adjustment; The roll gap is adjusted according to the rolling gap size and the roll gap size to perform hot rolling control.

5. The hot rolling control method according to claim 1, characterized in that: The step of obtaining the head thickness state of the target strip steel comprises: Obtain the head thickness data of the target strip; According to a preset rule, unusable data in the head thickness data is removed to obtain target head thickness data; Classification and statistics are performed based on the target head thickness data to determine the head thickness state of the target strip.

6. The hot rolling control method according to claim 5, characterized in that: The step of obtaining the head thickness data of the target strip steel comprises: The thickness value of the target strip head is obtained through the primary control system and the secondary control system; The head thickness data of the target steel strip is determined according to the thickness value curve corresponding to the thickness value of the head of the target steel strip.

7. A hot rolling control device, characterized in that: The device comprises: An acquisition module is used to acquire the head thickness state of the target strip; A determination module, used for determining a head thickness deviation of a target strip according to the head thickness state; A determination module is further used to determine a target shift value based on the head thickness deviation through a secondary control system; A calculation module, used for calculating a corresponding thickness target value according to the target shift value; The control module is used to send the thickness target value to the primary control system through the secondary control system to perform hot rolling control.

8. A hot rolling control device, characterized in that: The device comprises: a processor and a memory storing computer program instructions; the processor reads and executes the computer program instructions to implement the hot rolling control method according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the hot rolling control method according to any one of claims 1 to 6 is implemented.

10. A computer program product, characterized in that When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the hot rolling control method as described in any one of claims 1 to 6.

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