Intelligent data management method and system for multi-roll star-type precision rolling mill

Abstract

The application discloses a kind of intelligent data management method and system of multi-roller star type precision rolling mill, and relates to general control or regulating system field, which comprises the following steps: embedding identity chip containing unique identification code on multi-roller star type precision rolling mill and guide.The mapping relationship between identification code and pass data is established according to rolling task table.In three key positions (roll ring replacement, optical pass detection, rolling pass), chip recognition device is set, and the operation start permission of roll changing equipment, adjusting equipment and rolling mill unit is controlled respectively by reading identification code and matching check with mapping relationship.Implementation of the method can reduce the risk of equipment and rolling pass mismatch.

Description

Technical Field

[0001] This application relates to the general field of control or regulation systems, and more particularly to an intelligent data management method and system for a multi-roll star-shaped precision rolling mill. Background Technology

[0002] Multi-roll reduction sizing precision rolling technology is widely used in the finishing rolling production of bars, wires, and tubes. Through the coordination of multi-pass star-shaped mills and rolling guides, it achieves precise reduction sizing and surface quality control of bars, wires, and tubes. During production, different specifications of bars, wires, and tubes require corresponding roll and guide profiles, with each rolling pass corresponding to specific roll parameters. With the frequent switching of rolling tasks and the increasing demand for multi-specification mixed-line production, the frequency of roll and guide replacement has significantly increased. Simultaneously, a large number of identical-looking pieces of equipment are used repeatedly on the production line, necessitating ensuring accurate alignment of equipment with the rolling pass during each replacement and installation.

[0003] In existing technologies, the management of rolls and guides mainly relies on a combination of surface markings and record-keeping. Numbers or specification markings are marked on the surface of the roll rings and guides. Operators visually read the markings during roll changes and verify the equipment model against the production plan. Equipment pass parameters, technical specifications, and other information are stored in a separate management system. After roll changes, operators enter the correspondence between the equipment number and its installation location into the system, creating an installation record. Before the equipment is installed for a rolling pass, the pass parameters are verified to meet requirements by querying the system or through on-site measurements.

[0004] However, in high-frequency roll changing operations, a large number of identical rolls and guides frequently move between the roll changing area, inspection area, and multiple rolling passes. Relying solely on surface markings and operator visual judgment is insufficient to guarantee accuracy at each stage. When equipment surface markings become blurred due to wear, reading becomes more difficult, and operators are prone to misjudgment when they need to identify and install multiple pieces of equipment within a limited time. Furthermore, since the input and verification of equipment information relies on manual operation, there is a time delay in information transmission. Equipment replacements completed in the roll changing area cannot be immediately fed back to the rolling system, resulting in a lack of real-time equipment information support for subsequent pass inspection and rolling pass installation. This information lag can easily lead to equipment mismatch with passes in multi-pass rapid roll changing scenarios, affecting production safety and product quality. Summary of the Invention

[0005] This application provides an intelligent data management method and system for multi-roll star-shaped precision rolling mills to reduce the risk of equipment mismatch with rolling passes.

[0006] In a first aspect, this application provides an intelligent data management method for a multi-roll star-shaped precision rolling mill, applied to a multi-roll reduction and sizing precision rolling mill unit. This multi-roll reduction and sizing precision rolling mill unit includes multiple rolling passes, each rolling pass being equipped with a multi-roll star-shaped precision rolling mill and multi-roll rolling guides. The method includes: embedding an identification chip on the multi-roll star-shaped precision rolling mill and the multi-roll rolling guides, the identification chip containing a unique equipment identifier; assigning pass pattern data to each rolling pass according to the rolling task sheet, establishing a mapping relationship between the unique identifier and the pass pattern data; and setting a first chip identification device at the roll ring changing position, using the first chip identification device... The system reads the unique identifier and performs a first matching verification by calling the mapping relationship. Based on the result of the first verification, it controls the operation permission of the roll changing equipment. A second chip identification device is set up at the optical aperture detection position. The unique identifier is read through the second chip identification device, and the mapping relationship is called up for a second matching verification. Based on the result of the second verification, it controls the operation permission of the adjustment equipment. A third chip identification device is set up at the rolling pass position. The unique identifier is read through the third chip identification device, and the mapping relationship of that rolling pass is called up for a third matching verification. Based on the result of the third verification, it controls the start-up permission of the multi-roll reduction sizing precision rolling mill.

[0007] In the above embodiments, the system embeds an identity chip on the device and establishes a mapping relationship, setting up identification devices at three key locations to form a multi-level verification mechanism. Each verification is based on a unique identifier code to automatically verify and control the corresponding permissions, establishing an automated identity recognition and permission control barrier at each stage of device circulation, effectively avoiding the risk of misjudgment due to manual identification and mismatch caused by information transmission delays.

[0008] In conjunction with some embodiments of the first aspect, in some embodiments, the step of reading the unique identifier code through the first chip identification device, calling the mapping relationship for the first matching verification, and controlling the operation permission of the roll changing equipment based on the first verification result specifically includes: reading the unique identifier code through the first chip identification device and reading the historical usage data of the equipment from the identity chip; calling the mapping relationship according to the unique identifier code to obtain the corresponding target aperture data and task pass information; determining whether the current state of the equipment meets the roll changing usage conditions based on the historical usage data of the equipment; when the first matching verification passes, granting operation permission to the roll changing equipment and writing a first verification pass identifier to the identity chip, wherein the first matching verification passes when the unique identifier code matches the task pass information and the current state of the equipment meets the roll changing usage conditions; when the first matching verification fails, refusing to grant operation permission to the roll changing equipment and writing a verification failure record to the identity chip.

[0009] In the above embodiment, at the roller changing position, the system simultaneously reads the unique identifier and the equipment's historical usage data through the first chip identification device, and performs dual verification based on the mapping relationship. Operation permissions are only granted when the identifier matches and the equipment status is qualified. This pre-verification mechanism ensures that only qualified and healthy equipment can proceed to subsequent processes.

[0010] In conjunction with some embodiments of the first aspect, in some embodiments, the step of reading the unique identifier code through the second chip identification device, calling the mapping relationship for a second matching verification, and controlling the operation permission of the adjustment device based on the second verification result specifically includes: reading the unique identifier code through the second chip identification device and reading the first verification pass identifier from the identity chip; when the existence of the first verification pass identifier is detected, calling the mapping relationship according to the unique identifier code to obtain theoretical aperture size data; obtaining the measured aperture size data of the device through the optical aperture detection device; when the size deviation between the measured aperture size data and the theoretical aperture size data is within a preset deviation range, the second matching verification passes, operation permission is granted to the adjustment device, and the second verification pass identifier is written to the identity chip; when the first verification pass identifier does not exist, or the size deviation exceeds the preset deviation range, the second matching verification fails, operation permission is refused to be granted to the adjustment device, and a verification failure record is written to the identity chip.

[0011] In the above embodiment, the system reads the first verification pass mark at the hole type detection position to form a process continuity verification, compares the theoretical hole type size with the measured data, and only grants adjustment permission if the size deviation is within a preset range. This secondary verification not only verifies the correctness of the device identity, but also ensures that the actual hole type size meets the accuracy requirements.

[0012] In conjunction with some embodiments of the first aspect, in some embodiments, after controlling the start-up authority of the multi-roll reducing sizing precision rolling mill based on the third verification result, the method further includes: writing rolling process data into an identity chip through a third identification device, and performing equipment status assessment based on equipment usage parameters and rolling process data.

[0013] In the above embodiments, the system continuously collects rolling process data and writes it into the chip through a third identification device, establishing a real-time correlation mechanism between usage parameters and process data. Based on this data, equipment status assessment can be performed, enabling timely detection of operational anomalies and providing data support for equipment lifecycle management and preventative maintenance.

[0014] In some embodiments of the first aspect, the step of writing rolling process data into an identity chip via a third identification device and evaluating the equipment status based on equipment usage parameters and rolling process data specifically includes: during the rolling process, collecting rolling process data via a third chip identification device, the rolling process data including rolling force, rolling speed, and rolling temperature; obtaining standard process parameters corresponding to the current rolling task from the mapping relationship, the standard process parameters including standard rolling force range, standard rolling speed range, and standard rolling temperature range; calculating the deviation value between the rolling process data and the standard process parameters, and accumulating it into the historical deviation accumulation value in the equipment usage parameters; calculating the equipment anomaly index based on the historical deviation accumulation value and the cumulative rolling tonnage; when the equipment anomaly index exceeds a preset anomaly threshold, marking the equipment status as a state to be detected in the identity chip; writing the equipment anomaly index and equipment status into the identity chip via the third chip identification device; in the next round of production, when the first chip identification device reads the state to be detected, refusing to grant operation permissions to the roll changing equipment until the state to be detected is cleared.

[0015] In the above embodiments, the system collects rolling process data in real time and compares it with standard process parameters, calculating the accumulated deviation values ​​to form an anomaly index. When the anomaly index exceeds a threshold, it is automatically marked as a state to be detected and subsequent operation permissions are denied. This anomaly detection mechanism based on deviation accumulation can issue early warnings in the early stages of equipment performance degradation.

[0016] In conjunction with some embodiments of the first aspect, in some embodiments, after controlling the start-up permission of the multi-roll reduction sizing precision rolling mill based on the third verification result, the method further includes: after rolling is completed, reading the cumulative usage parameters in the identity chip through a third chip identification device; obtaining the preset maintenance threshold of the corresponding equipment from the mapping relationship, comparing the cumulative usage parameters with the preset maintenance threshold, and calculating the remaining available quantity; when the remaining available quantity is lower than a preset warning value, marking the equipment status as near maintenance status in the identity chip and writing it into the identity chip through the third chip identification device; when the remaining available quantity is lower than or equal to zero, marking the equipment status as forced maintenance status in the identity chip and writing it into the identity chip through the third chip identification device; in the next round of production, when the first chip identification device reads the forced maintenance status, refusing to grant operation permission to the roll changing equipment; after completing equipment maintenance and clearing the forced maintenance status through the first chip identification device and simultaneously clearing the cumulative usage parameters to zero, restoring operation permission to the roll changing equipment.

[0017] In the above embodiments, the system marks the equipment maintenance status based on the comparison results of cumulative usage parameters and maintenance thresholds. When the equipment is in a mandatory maintenance state, operation permissions are denied, and permissions are restored only after maintenance is completed and the mark is cleared. This mandatory maintenance mechanism ensures that the equipment must be maintained when it reaches its maintenance cycle.

[0018] In conjunction with some embodiments of the first aspect, in some embodiments, after controlling the start-up permission of the multi-roll reduction sizing precision rolling mill based on the third verification result, the method further includes: during the rolling process, collecting the operating condition parameters of the current rolling task through a third chip identification device, the operating condition parameters including the rolling material type, rolling speed range, rolling temperature range, and pass reduction; obtaining the wear coefficients corresponding to the operating condition parameters from the mapping relationship, the wear coefficients including the material wear coefficient, speed wear coefficient, temperature wear coefficient, and reduction wear coefficient; calculating the equivalent wear amount of this rolling based on the wear coefficients and the current rolling tonnage, and accumulating the equivalent wear amount to the cumulative equivalent wear amount in the identity chip; reading the cumulative equivalent wear amount as the cumulative usage parameter through the third chip identification device; comparing the cumulative equivalent wear amount with the equivalent wear amount threshold obtained from the mapping relationship, calculating the remaining equivalent service life, and performing life status marking and permission control based on the remaining equivalent service life.

[0019] In the above embodiments, the system obtains the corresponding wear coefficient based on operating parameters such as rolling material type, speed, temperature, and reduction, and calculates and accumulates the equivalent wear amount in combination with the rolling tonnage. This equivalent wear calculation mechanism, which considers multiple operating conditions, can more accurately reflect the impact of different rolling conditions on equipment life.

[0020] In a second aspect, embodiments of this application provide an identity recognition and intelligent data management system, which includes: one or more processors and a memory; the memory is coupled to the one or more processors, and the memory is used to store computer program code, the computer program code including computer instructions, and the one or more processors call the computer instructions to cause the identity recognition and intelligent data management system to perform the method described in the first aspect and any possible implementation thereof.

[0021] Thirdly, embodiments of this application provide a computer program product containing instructions that, when the computer program product is run on an identity recognition and intelligent data management system, cause the identity recognition and intelligent data management system to perform the method described in the first aspect and any possible implementation thereof.

[0022] Fourthly, embodiments of this application provide a computer-readable storage medium including instructions that, when executed on an identity recognition and intelligent data management system, cause the identity recognition and intelligent data management system to perform the method described in the first aspect and any possible implementation thereof.

[0023] Understandably, the identity recognition and intelligent data management system provided in the second aspect, the computer program product provided in the third aspect, and the computer storage medium provided in the fourth aspect are all used to execute the methods provided in the embodiments of this application. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0024] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0025] 1. This application embeds an identity chip containing a unique identifier into the equipment and establishes a mapping relationship with the die pattern data. Identification devices are set up at three locations: roll changing, inspection, and rolling to form a three-level verification network. Each device reads the identifier and calls the mapping relationship for verification. Based on the result, the corresponding operation permissions are automatically controlled, realizing the full-process automated verification from roll changing to production. This effectively solves the problems of high mismatch risk and information transmission lag caused by manual identification in the prior art, and thus realizes real-time accurate identification of equipment identity and automated control of permissions.

[0026] 2. This application uses a first chip identification device to simultaneously read the unique identifier and the historical usage data of the equipment. Based on the identifier, it calls the mapping relationship to obtain the task sequence information and judges the equipment status based on the historical data. Only when the identifier matches the task and the status is qualified will the operation permission be granted. This dual verification mechanism effectively solves the problem in the prior art of only verifying the model and ignoring the status, which leads to unqualified equipment entering production. In this way, it realizes the comprehensive verification of equipment identity and status and the pre-interception of unqualified equipment.

[0027] 3. This application uses a second chip identification device to read the first verification pass mark to establish process continuity verification. The theoretical hole size is obtained according to the identification code and compared with the optical detection measured data. Adjustment permission is only granted if the deviation is within the preset range. This secondary verification based on optical detection combines identity verification and size accuracy verification, effectively solving the problem that the hole size deviation cannot be detected in time in the existing technology, and thus realizing automated hole size detection and result-based intelligent permission control. Attached Figure Description

[0028] Figure 1 This is a control flowchart of the intelligent data management method for multi-roll star-shaped precision rolling mill in the embodiments of this application;

[0029] Figure 2 This is a flowchart illustrating an intelligent data management method for a multi-roll star-shaped precision rolling mill as described in this application.

[0030] Figure 3 This is a schematic diagram of the structure of the identity chip installed on a multi-roll star-shaped precision rolling mill in an embodiment of this application;

[0031] Figure 4 This is a schematic diagram of the structure in which the identity chip is installed on a multi-roller guide in an embodiment of this application;

[0032] Figure 5 This is a schematic diagram of the cooperation between the chip and the chip identification equipment on the multi-roll star-shaped precision rolling mill in the embodiments of this application;

[0033] Figure 6 This is another flowchart illustrating the intelligent data management method for multi-roll star-shaped precision rolling mills in this application embodiment;

[0034] Figure 7 This is a schematic diagram of the physical device structure of an identity recognition and intelligent data management system in the embodiments of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 301. Multi-roll rolling guide; 302. Chip; 303. Screw; 401. Multi-roll star-shaped precision rolling mill; 501. C-module frame; 502. Chip identification device; 701. Central processing unit; 702. Read-only memory; 703. Random access memory; 704. Bus; 705. Input / output interface; 706. Input section; 707. Output section; 708. Storage section; 709. Communication section; 710. Driver; 711. Removable media. Detailed Implementation

[0037] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification of this application, the singular expressions “a,” “an,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to any or all possible combinations including one or more of the listed items.

[0038] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0039] To facilitate understanding, the application scenarios of the embodiments of this application are described below.

[0040] like Figure 1 The diagram shown is a flowchart of the identification and control process for a multi-roll star-shaped precision rolling mill and its guide provided in an embodiment of this application.

[0041] The process begins with the rolling task sheet. The system automatically calculates the pass data for each pass. While the mill and rolling guides are the same, the pass parameters and guides for the roll rings and guide wheels differ for each stand. This necessitates determining whether the roll rings (1# or 2#) are placed on the mill for the first or second pass. This requires receiving confirmation, selecting, and further confirming the specific identity of the mill and rolling guide used for each pass (e.g., determining whether it's mill 1# or 2#, and its corresponding pass parameters and guide information). Once confirmed, the system will simultaneously allocate the pass parameters to subsequent roll ring removal and replacement, optical testing, and mill setup stages. The rolling mill and rolling guides are uniquely identified by externally installed chips. All information is stored within the rolling system; the chip acts as a connecting bridge. Data from each roll change, roll ring gauge adjustment, and roll ring gauge repair is identified by the chip and stored internally. Maintenance and malfunction information are recorded and stored. The system generates a health index level based on the rolling mill's usage. If the lowest level is reached, the system will prompt for repair or prohibit operation of the rolling mill. The alert is automatically lifted after repair or maintenance is completed. General identification information is entered by the equipment manufacturer; the user has no modification authority. This also includes anti-counterfeiting features to prevent irreparable damage to the entire unit caused by the use of counterfeit products.

[0042] After determining the mapping relationship between identity and data, such as Figure 1 As shown, data is synchronously distributed to four parallel stages:

[0043] Roll ring and guide roller changing system: performs roller changing operations and saves data;

[0044] Optical die inspection system: performs die adjustment and storage for rolling mill and guides;

[0045] Remote hole size online adjustment system: performs hole size adjustment and saves data;

[0046] Unit online detection and identification system: identifies and saves data on incorrect unit installations online.

[0047] After all steps have been confirmed to be correct, rolling begins online according to the task schedule.

[0048] In addition, the system records the usage of the rolling mill (maintenance, malfunctions) and generates health indicator levels. If the lowest level is reached, the system will issue a repair reminder or prohibit use until the repair is completed. Meanwhile, chip entry permissions are controlled by the manufacturer and have anti-counterfeiting features to prevent counterfeit products from damaging the unit.

[0049] To facilitate understanding, the method provided in this implementation will be described in detail below, using the above scenario as an example. Please refer to [link / reference]. Figure 2 This is a flowchart illustrating an intelligent data management method for a multi-roll star-shaped precision rolling mill in this application embodiment.

[0050] S201. An identification chip is embedded in the multi-roll star-shaped precision rolling mill and the multi-roll rolling guide. The identification chip contains a unique identification code for the equipment.

[0051] Among them, a multi-roll star-shaped precision rolling mill refers to a precision rolling equipment that uses multiple rolls arranged in a star shape for reducing and sizing bars, wires, and tubes. Multi-roll rolling guides refer to rolling guide devices configured before and after the rolling mill, used to guide and support the steel tubes to be rolled. An identification chip refers to an electronic identification module embedded in the equipment body, with data storage and wireless communication functions. A unique equipment identifier is a unique coded sequence assigned to each piece of equipment; this code is fixed and cannot be modified when written to the chip.

[0052] Specifically, during the equipment manufacturing or warehousing stage, identification chips are embedded in pre-defined installation positions on the roll ring body of the multi-roll star-shaped precision rolling mill and the guide seat body of the multi-roll rolling guide. The chip embedding position is selected in an area on the non-working surface of the equipment and unaffected by the rolling process, and the chip is fixed to the equipment body using mechanical fixing or epoxy resin encapsulation. A unique equipment identification code is written into the read-only storage area of ​​the chip using a chip writing device. This identification code is generated according to a pre-defined encoding rule, which includes an equipment type identification segment, a specification parameter identification segment, and a serial number segment. After writing, the readability and uniqueness of the identification code are verified to ensure that there are no duplicate records in the system database.

[0053] In some embodiments, the embedding of the identity chip can be achieved in several ways: Optionally, an embedding groove with a depth of 5-8 mm is pre-processed on the end face of the device, the identity chip is placed in the groove and then encapsulated with industrial-grade epoxy resin. After curing, the unique device identifier is written into the non-volatile storage area of ​​the chip via near-field communication. Optionally, the metal-encapsulated identity chip is installed in a non-stress area of ​​the device body using laser welding. Before welding, the unique device identifier is pre-written into the chip using a programming device. After welding, the chip's installation firmness and communication function integrity are verified through non-destructive testing. It is understood that other methods can also be used to embed the identity chip and write the identifier, which are not limited here.

[0054] To clarify the specific mounting structure of the chip, please refer to [link / reference]. Figure 3 and Figure 4 In this embodiment, the multi-roller equipment is specifically shown as a three-roller structure.

[0055] like Figure 3 The diagram shows a chip mounted on a three-roll star-shaped precision rolling mill. The multi-roll rolling guide 301 represents the main structure of the three-roll star-shaped precision rolling mill. Chip mounting slots are provided on the non-working surface of the mill body (as enlarged at point A in the diagram). Chips 302 are placed in these slots and mechanically secured with screws 303. This screw-locking mounting method ensures that the chips will not fall off during high-speed mill operation.

[0056] like Figure 4 The diagram shows a chip mounted on a multi-roller rolling guide. Its structural logic is similar to that of a rolling mill. The multi-roller star-shaped precision rolling mill 401 is shown as a multi-roller rolling guide, and its substrate also has mounting positions. The chip 302 (as enlarged at point B in the diagram) is fastened to the guide by screws 303.

[0057] This structure, which uses screws 303 to fix chips 302 on the No. 1 rolling mill and guides, ensures that each physical entity carries an unalterable identity identifier, providing a hardware foundation for subsequent data management.

[0058] S202. Assign pass data to each rolling pass according to the rolling task sheet, and establish a mapping relationship between unique identifier and pass data.

[0059] The rolling task list represents a detailed list of tasks compiled according to the production plan, including the specifications, material type, quantity, and process parameters required for each rolling pass of the steel pipe to be rolled. A rolling pass refers to the various rolling positions the steel pipe passes through sequentially in the precision rolling mill. Pass data refers to the set of geometric parameters of the rolls and guides, including parameters such as pass diameter, pass shape, and roll gap size. The mapping relationship represents the association between the unique equipment identifier and its corresponding pass data established in the data management system.

[0060] Specifically, the production management system compiles a rolling task list based on production orders and equipment resources, specifying the target steel pipe size for each rolling pass. The system retrieves matching pass parameters from the pass database based on the size targets for each pass. After retrieving the pass data, the system reads the unique identifier of each device with an embedded identification chip, establishing a one-to-one mapping between each identifier and its corresponding pass data. This mapping is stored in a relational database as table records, with each record containing a unique identifier field, a pass parameter field, a pass location field, and a task number field. Once the mapping is established, it is distributed to each chip identification device, enabling the device to instantly access the corresponding pass data.

[0061] In some embodiments, the allocation and mapping of roll pass data can be achieved in several ways: Optionally, the system calculates the theoretical roll pass size required for each pass using the process parameter calculation module based on the specifications and materials of bars, wires, and tubes in the task list. It then selects equipment that meets the requirements and is available from the equipment inventory according to the pass order. The system reads the unique identifier of the selected equipment and combines it with the roll pass data for that pass to form a mapping record. All mapping records are then summarized to form a mapping relationship table and synchronized to each identification device. Optionally, the operator obtains the unique identifier by scanning the identification chip of the equipment to be used using a mobile terminal. The system retrieves the roll pass parameters of that equipment, and the operator manually specifies the rolling pass corresponding to that equipment according to the task requirements. The system records the specification result and creates a mapping entry. After all pass equipment is specified, the integrity of the mapping relationship is verified and sent to each identification device. It is understood that other methods can also be used to achieve the allocation and mapping of roll pass data, which are not limited here.

[0062] S203. A first chip identification device is set at the roller ring replacement position. The unique identification code is read by the first chip identification device, the mapping relationship is called to perform the first matching verification, and the operation permission of the roller changing equipment is controlled according to the first verification result.

[0063] The roll changing location refers to a fixed area on the production line specifically designated for changing rolls and guides. The first chip identification device refers to the identification chip reader / writer installed at the roll changing location, possessing short-range wireless communication capabilities and the ability to interact with the upper-level control system. The first matching verification refers to determining whether the current device is the correct device for the current location and task by comparing the read unique identifier with the identifier recorded in the mapping relationship. The operating permission for the roll changing equipment refers to the permission to start and operate the hoisting equipment and disassembly / removal tools.

[0064] Specifically, a first chip identification device is fixedly installed at the roller ring changing station, with its sensing antenna facing the equipment placement area. When the operator places the roll or guide to be installed at the designated station, the first chip identification device automatically starts the scanning program to read the unique identification code in the equipment's identification chip. The identification device transmits the identification code to the local control unit, which retrieves the target identification code corresponding to the current task and station from the mapping table. The control unit compares the read identification code with the target identification code. If they match, the verification is considered successful, and an open permission command is sent to the roller changing equipment's access control module, allowing the operator to start the roller changing equipment for disassembly and installation. If the comparison does not match, the verification is considered unsuccessful, the control unit maintains the access lock state, and issues an error message to the operator via an audible and visual alarm.

[0065] In some embodiments, the initial matching verification and access control can be implemented in several ways: Optionally, after detecting the device, the first chip identification device sends three consecutive read commands. Upon successful reading, it sends a unique identifier and timestamp to the host computer system. The host computer queries the mapping database for the device identifier to be configured based on the task number and workstation number, compares the query result with the received identifier, and feeds it back to the field controller. The field controller controls the on / off state of the power relay of the roll changing equipment based on the comparison result. Optionally, a touch screen operation panel is set up at the roll changing station. After the operator places the device, the chip identification process is triggered. After the first chip identification device reads the identifier, it displays the hole type specification and corresponding pass information of the device on the panel. After the operator verifies the information, he / she clicks the confirmation button. The system performs matching verification. After successful verification, it sends an access control command to the programmable controller of the roll changing equipment. It is understood that other methods can also be used to implement matching verification and access control, which are not limited here.

[0066] In some embodiments, this step specifically includes:

[0067] S2031. Read the unique identifier code through the first chip identification device, and read the device's historical usage data from the identity chip.

[0068] The unique identifier represents the unique identification code of each rolling mill or guide. Equipment historical usage data represents the cumulative usage information of the equipment stored in the chip, including cumulative rolling tonnage, cumulative equivalent wear, current equipment status, bearing usage time, and historical maintenance records. Target pass data represents the pass geometry parameters required for this rolling task, including roll ring diameter, pass shape, and pass size. Task pass information represents the pass position number that the equipment should use in this rolling task. Roll change conditions represent the status requirements for the equipment to be allowed to go online, including the equipment status being normal or nearing maintenance, cumulative equivalent wear not exceeding the threshold, no verification failure records, and bearing usage time not exceeding the limit. The first matching verification pass identifier represents the record flag indicating that the equipment passed the pre-launch identity verification, written to the chip as a prerequisite verification basis for subsequent steps. Verification failure records represent the record information of the equipment failing verification, including the failure time, failure reason code, and failure pass number.

[0069] After the operator places the mill or guide at the designated position at the roll changing station, the antenna of the first chip identification device establishes a radio frequency connection with the chip. The identification device sends a read command to read the unique identification code field from the chip's storage area. This identification code is a 16-bit string containing the equipment type code, manufacturing batch code, and serial number. The control unit first verifies the legality of the unique identification code, checking whether it has been registered in the intelligent data management system, and also verifies whether the identification code format conforms to the encoding rules (the first four digits are the equipment type code, the middle six digits are the manufacturing batch code, and the last six digits are the serial number). If the identification code is not registered or the format is incorrect, it is determined to be illegal or counterfeit equipment, and the control unit directly refuses further operation and records the illegal equipment event. After successful verification, the identification device continues to read the equipment's historical usage data, including the cumulative rolling tonnage and cumulative equivalent wear from the usage parameter area, the current status identifier of the equipment from the status parameter area (normal status is 0x01, near-maintenance status is 0x03, forced maintenance status is 0x04), and the bearing usage time and last maintenance time from the maintenance record area. The identification device transmits the read data to the control unit and simultaneously sends a data synchronization request to the intelligent data management system to ensure that the system can monitor the device status in real time.

[0070] S2032. Based on the unique identifier, call the mapping relationship to obtain the corresponding target aperture data and task pass information.

[0071] After receiving the unique identifier, the control unit sends a query request to the intelligent data management system. Based on the pass allocation information in the current production task table, the management system retrieves the target pass data corresponding to the unique identifier from the mapping database, including geometric parameters such as the roll ring outer diameter, the pass inscribed circle diameter, and the pass shape angle. Simultaneously, the system retrieves the pass data required for the corresponding pass at the roll changing station for this rolling task. This data is automatically generated by the production task table based on the rolling specifications and pass design. The control unit compares the target pass data for this equipment with the required pass data for that pass to verify their consistency and ensure that the pass parameters of the equipment meet the rolling requirements for that pass. The system returns the target pass data, the required pass data, and the comparison result to the control unit and simultaneously records this query operation in the intelligent data management system.

[0072] S2033. Determine whether the current state of the equipment meets the conditions for roller replacement based on the historical usage data of the equipment.

[0073] The control unit performs roll change usage condition judgment based on the read historical equipment usage data. The judgment logic includes: first, checking the current equipment status indicator; if the status is "Forced Maintenance Status 0x04", the usage condition is determined not to be met; second, checking the cumulative equivalent wear; if the cumulative value is greater than or equal to the equivalent wear threshold, the usage condition is determined not to be met (at this time, the equipment should have been marked as "Forced Maintenance Status"); third, checking the verification failure record area; if there are any uncleared verification failure records, the usage condition is determined not to be met. For bearing usage time, the control unit checks whether the usage time exceeds the bearing maintenance cycle (1,000 hours for high-speed bearings and 2,000 hours for ordinary bearings). If it exceeds the cycle but the equipment status is still in normal or nearing maintenance status, the usage condition is determined to be met, but the system generates a maintenance reminder notification. The usage condition is only determined not to be met when the equipment is marked as "Forced Maintenance Status" due to bearing problems. Only when all checks pass does the control unit determine that the current equipment status meets the roll change usage conditions and synchronously feed back the judgment result to the intelligent data management system.

[0074] S2034. When the first matching verification passes, the operation permission is granted to the roller changing equipment, and the first verification pass identifier is written to the identity chip. The first matching verification pass is a unique identifier that matches the task track information, and the current status of the equipment meets the roller changing conditions.

[0075] The control unit performs the first matching verification. The verification includes two conditions: first, the target pass data of the equipment must be completely consistent with the pass data required for that pass, including matching of all geometric parameters such as the diameter of the inscribed circle, the outer diameter of the roll ring, and the pass shape angle; second, the current state of the equipment, as determined in step S1033, meets the conditions for roll changing. When both conditions are met simultaneously, the first matching verification is considered successful. The control unit sends an access control signal to the electrical control system of the roll changing equipment, releasing the electrical interlock status of the equipment. The robotic arm, hydraulic clamps, positioning devices, and other actuators of the roll changing equipment gain operating permissions, allowing for roll ring replacement or guide wheel replacement operations. The control unit writes a first verification success identifier to the verification record area of ​​the identity chip through the first chip identification device. This identifier includes a success timestamp, the verification pass number, and the operator's employee number. After writing, a readback verification is performed to ensure the identifier is successfully written to the chip. Simultaneously, the control unit uploads the verification success record to the intelligent data management system, updating the equipment's operating process status to ensure the rolling system can monitor in real time that the equipment has completed the first verification.

[0076] S2035. When the first matching verification fails, refuse to grant operation permission to the roller changing equipment and write a verification failure record to the identity chip.

[0077] When the unique identifier does not match the task pass information or the current equipment status does not meet the roll changing conditions, the first matching verification is deemed to have failed. The control unit refuses to send an access grant signal to the roll changing equipment, maintaining an electrical interlock state. All actuators of the roll changing equipment remain locked, and the control panel displays a red warning message indicating the reason for the verification failure, including specific reasons such as "equipment pass mismatch," "equipment requires maintenance," "equipment wear exceeds limits," or "equipment has a fault record." The control unit writes a verification failure record to the verification record area of ​​the identity chip through the first chip identification device. This record includes a failure timestamp, failure reason code, failed pass number, and operator employee number. Simultaneously, the verification failure event is uploaded to the intelligent data management system, which generates an anomaly report and notifies management personnel for handling. The operator must replace the equipment with the correct pass or complete equipment maintenance before re-executing the verification process.

[0078] S204. A second chip identification device is set at the optical aperture detection position. The unique identification code is read through the second chip identification device, the mapping relationship is called to perform a second matching verification, and the operation permissions of the device are controlled and adjusted according to the second verification result.

[0079] The optical aperture detection position refers to a fixed detection station used to check the aperture size of the installed equipment after the roll changing operation. The second chip identification device refers to the identification chip reader / writer installed at the optical aperture detection position. The second matching verification refers to reading the unique identifier, calling the mapping relationship to obtain the theoretical aperture size, and comparing this theoretical aperture size with the measured size obtained from the optical detection. The adjustment device refers to the actuator used to adjust the position or gap of the rolls and guides.

[0080] Specifically, after the roller changing operation is completed, the operator transports the equipment components to the optical aperture detection position and places them on the positioning platform. The second chip identification device automatically reads the equipment's unique identification code and sends it to the detection control system. The detection control system retrieves the corresponding theoretical aperture size data from the mapping database based on the identification code, including the standard value and tolerance range of the aperture diameter. Simultaneously, the optical aperture detection device initiates the measurement program, acquiring the contour image of the aperture through a camera. The image processing algorithm performs edge extraction and size calculation on the image to obtain the measured diameter value. The detection control system calculates the deviation between the measured value and the theoretical value, determining whether the deviation is within a preset range. When the deviation is within the allowable range, the verification is considered successful, and an open permission command is sent to the control module adjusting the equipment. When the deviation exceeds the range, the verification is considered unsuccessful, open permission is denied, and an out-of-tolerance message is displayed on the screen.

[0081] In some embodiments, the second matching verification and access control can be implemented in several ways: Optionally, after the second chip identification device reads the identification code, the detection control system first verifies whether the device has passed the first verification. It reads the first verification pass identifier from the identification chip. If the identifier does not exist, the detection is directly rejected; if it exists, optical detection continues. A laser displacement sensor is used to perform multi-point measurements along the circumference of the aperture, and the average value is calculated as the measured diameter. When the deviation is within ±0.05 mm, the verification is considered passed, and the system sends an enable signal to the driver of the adjustment device via the fieldbus. Optionally, a dual-station platform is set up at the detection station. Each station is equipped with an independent identification device and an optical detection device. After each identification device reads the identification code, the system retrieves the 3D aperture model data of the device based on the identification code. The image acquired by the optical detection device is compared with the 3D model to calculate the matching degree. When the matching degree is greater than 95%, the verification is considered passed, and the system releases the electrical interlock of the adjustment device at that station. It is understood that other methods can also be used to implement matching verification and access control, which are not limited here.

[0082] In some embodiments, this step specifically includes:

[0083] S2041. Read the unique identifier code through the second chip identification device, and read the first verification pass mark from the identity chip.

[0084] The first verification pass mark indicates that the equipment has passed the identity matching and status check at the roll changing station, serving as a prerequisite for subsequent pass inspection and adjustment. Theoretical pass size data represents the standard pass geometry parameters designed by the equipment, including design values ​​such as the pass inscribed circle diameter, pass depth, and roll gap. The optical pass inspection device represents equipment that uses optical measurement technology to obtain the actual pass size, typically including a laser scanner or industrial camera. Measured pass size data represents the pass geometry parameters actually measured by the optical inspection device. Dimensional deviation represents the difference between the measured and theoretical values. The preset deviation range represents the upper and lower limits of allowable dimensional deviation, set according to rolling accuracy requirements. Adjustment equipment represents the mechanical devices used to correct the pass size, including roll gap adjustment mechanisms and axial positioning devices. The second verification pass mark indicates that the equipment has passed the pass size inspection.

[0085] After the operator moves the equipment that has completed the roller ring or guide wheel replacement to the optical aperture inspection station, the second chip identification device establishes a connection with the chip. The identification device reads the unique identifier to confirm the equipment's identity, and then reads the first verification pass mark in the verification record area. This mark includes a pass timestamp, verification pass number, and operator's employee number. The identification device verifies the completeness and validity of the mark to ensure that the equipment has completed identity verification at the roller change station. The identification device transmits the reading result to the control unit.

[0086] S2042. When the first verification pass flag is detected, the mapping relationship is called according to the unique identifier code to obtain the theoretical hole size data.

[0087] After detecting the presence of the first successful verification mark, the control unit sends a query request to the intelligent data management system based on the unique identifier. The system retrieves the theoretical aperture size data corresponding to the device from the mapping database. The data includes the design value of the aperture's inscribed circle diameter (in millimeters, accurate to 0.01 millimeters), the design value of the aperture depth, the design values ​​of multiple roll gaps, and aperture shape angle parameters. The system returns the theoretical aperture size data to the control unit. The control unit then transmits the data to the optical inspection system as a measurement reference.

[0088] S2043. Obtain the measured aperture size data of the equipment through an optical aperture detection device.

[0089] The optical aperture detection device initiates the measurement program. A laser scanner moves along the device's axis, emitting a laser beam to scan the aperture surface and receiving reflected light signals to calculate the aperture contour coordinates. An industrial camera captures images of the aperture from multiple angles, and an image processing algorithm extracts edge feature points. The detection system integrates the laser scanning data and image processing results to calculate parameters such as the measured aperture's inscribed circle diameter, measured aperture depth, and measured roll gap, generating measured aperture size data. The measurement process is repeated three times, and the average value is taken as the final measured data to improve measurement accuracy. The detection device transmits the measured data to the control unit.

[0090] S2044. When the dimensional deviation between the measured hole size data and the theoretical hole size data is within the preset deviation range, the second matching verification is passed, the operation permission is granted to the adjustment device, and the second verification pass mark is written to the identity chip.

[0091] The control unit calculates the dimensional deviation between the measured and theoretical hole dimensions. For the inscribed circle diameter, the dimensional deviation equals the measured diameter minus the theoretical diameter. For the roll gap, the dimensional deviation for each of the three roll gaps is calculated. The control unit reads preset deviation ranges from the system configuration: ±0.05 mm for the inscribed circle diameter and ±0.03 mm for the roll gap. When all dimensional parameters are within their preset deviation ranges, the second matching verification is considered successful. The control unit sends an access permission signal to the electrical control system of the adjustment equipment, releasing the electrical interlock. The roller gap adjustment motor, axial positioning hydraulic cylinder, and other actuators of the adjustment equipment gain operating permission, allowing fine-tuning of the hole dimensions. The control unit writes a second verification success identifier to the verification record area of ​​the identity chip via the second chip identification device. This identifier includes a timestamp, measured dimensional data, dimensional deviation value, and the employee number of the inspector.

[0092] S2045. If the first verification pass mark is not present, or the size deviation exceeds the preset deviation range, the second matching verification fails, operation permission is refused to be granted to the adjustment device, and a verification failure record is written to the identity chip.

[0093] When the control unit detects that the first verification pass mark is missing, it indicates that the equipment has not completed identity verification or the verification failed at the roll changing station, and the second matching verification is deemed to have failed. When the first verification pass mark exists but the dimensional deviation exceeds the preset deviation range, it indicates that the roller ring or guide wheel replacement quality is unqualified or the equipment itself is worn beyond the limit, and the second matching verification is also deemed to have failed. The control unit refuses to send permission opening signals to the adjustment equipment and maintains the electrical interlock state. All actuators of the adjustment equipment remain locked, and the operating console displays a red warning message indicating the reason for the verification failure, including specific reasons such as "missing first verification record", "excessive hole diameter deviation" or "uneven roller gap", and displays the measured deviation value. The control unit writes a verification failure record to the verification record area of ​​the identity chip through the second chip identification device. The record includes a failure timestamp, failure reason code, measured dimensional data, dimensional deviation value, and the inspection personnel's employee number. At the same time, the verification failure event is uploaded to the intelligent data management system, and the system generates an anomaly report. The operator needs to return to the roll changing station to replace the roller ring or guide wheel again, or repair the equipment and then re-execute the inspection process.

[0094] S205. A third chip identification device is set at the rolling pass position. The unique identification code is read by the third chip identification device, and the mapping relationship of the rolling pass is called to perform a third matching verification. The start-up permission of the multi-roll reducing sizing precision rolling mill is controlled according to the third verification result.

[0095] The rolling pass position refers to the installation location of each mill stand in the multi-roll reduction sizing precision rolling mill unit, with each position corresponding to a specific rolling pass number. The third chip identification device refers to the identity chip reader / writer installed at each rolling pass position. The third matching verification refers to comparing the unique identifier of the equipment with the corresponding target identifier in the mapping relationship after the equipment is installed in the rolling pass. The start-up permission of the multi-roll reduction sizing precision rolling mill unit refers to the operating permission of the rolling main drive system, hydraulic system, and control system.

[0096] Specifically, after completing optical inspection and passing the second verification, operators transport the equipment components to the corresponding rolling pass position and install the rolls and guides onto the mill stand and guide frame using specialized tools. Once the equipment is in place, the third chip identification device at that pass position activates and reads the unique identifier of the installed equipment. The third chip identification device transmits the identifier to the rolling pass controller, which retrieves the target equipment identifier for the current pass from its local mapping table. The controller performs an identifier comparison; if all bits match perfectly, the third verification is considered successful. After successful verification, the pass controller sends a verification completion signal to the main control system of the rolling mill. Upon receiving verification completion signals from all passes, the main control system releases the interlock for starting the rolling mill and sends a start permission command to the main drive inverter and hydraulic station control cabinet. If the identifier does not match, the controller determines that the verification has failed, maintains the start interlock state, and displays an alarm message indicating verification failure for that pass on the main control panel.

[0097] In some embodiments, the third matching verification and start-up permission control can be implemented in several ways: Optionally, the third chip identification device of each rolling pass continuously scans in a loop after the equipment is installed, with a scanning cycle of once every five seconds. When an identification code signal is detected, it is immediately read and uploaded to the pass controller. The pass controller obtains the list of equipment identification codes corresponding to the pass from the mapping table, and compares the read identification codes one by one. Only when all identification codes in the list are successfully read and compared, the pass controller reports the complete verification pass status of the pass to the main control system. After receiving the pass status of all passes, the main control system sends a start-up enable command to each subsystem. Optionally, multiple third chip identification devices are set at each rolling pass position, corresponding to different installation positions of the rolls and guides. Each identification device independently reads the identification code of the equipment at the corresponding position. The pass controller verifies whether the identification codes read at each position are consistent according to the equipment configuration scheme of the pass in the mapping relationship. After all position verifications are passed, a green indicator is displayed on the local human-machine interface, and a digital signal is sent to the main control system to indicate that the pass is ready. It is understandable that other methods can be used to achieve matching and verification of rolling pass positions and start-up permission control, which are not limited here.

[0098] For details on the specific identification structure after the rolling mill goes online, please refer to [link / reference]. Figure 5 This is a schematic diagram of chips and chip identification equipment on the multi-roll star-shaped precision rolling mill line.

[0099] As shown in the figure, module C frame 501 is a fixed load-bearing component on the mill line (i.e., the aforementioned rolling pass position). Multi-roll star-shaped precision mill 401 is a multi-roll star-shaped precision mill that is hoisted into the frame (corresponding to the aforementioned multi-roll star-shaped precision mill).

[0100] A chip identification device 502 (corresponding to the aforementioned third chip identification device) is installed on the C module frame 501. A chip 302 is installed at the corresponding position on the three-roll star-shaped precision No. 2 rolling mill.

[0101] Once the No. 2 rolling mill is installed, chip 302 is positioned within the sensing area of ​​the chip identification device 502 (as shown in the magnified image at point A in the figure). The chip identification device 502 reads the information from chip 302 to verify whether the rolling mill meets the process requirements of the current pass where module C frame 501 is located, thereby achieving error prevention and control.

[0102] The following provides a more detailed description of the process of the method provided in this implementation. Please refer to [link / reference]. Figure 6 This is another flowchart illustrating the intelligent data management method for multi-roll star-shaped precision rolling mills in this application.

[0103] S601. During the rolling process, rolling process data is collected by a third chip identification device. This rolling process data includes rolling force, rolling speed and rolling temperature.

[0104] The rolling process data represents a set of process parameters collected in real time by sensors as the steel pipe passes through each rolling pass. Rolling force refers to the radial pressure exerted by the rolls on the steel pipe, measured by pressure sensors mounted on the mill stand. Rolling speed refers to the linear velocity of the steel pipe as it passes through the rolling zone, measured by an encoder mounted on the drive shaft. Rolling temperature refers to the surface temperature of the steel pipe during rolling, measured by a non-contact infrared thermometer.

[0105] Specifically, during the rolling process, the third-chip identification device establishes a data link with each sensor via a fieldbus. The pressure sensor converts the analog rolling force signal into a digital signal and transmits it to the data acquisition module at a frequency of 100 times per second. The data acquisition module filters the acquired data and calculates the average value as the rolling force value for that pass. The encoder transmits the rotational pulse signal to the speed calculation unit, which calculates the actual rolling speed of the steel pipe based on the pulse frequency and transmission ratio. The infrared thermometer continuously collects temperature data as the steel pipe passes through the measurement area. The measurement point is located 300 mm after the guide exit. The collected temperature data is corrected by a temperature compensation algorithm and used as the recorded rolling temperature value. The third-chip identification device synchronously collects the above three types of data from each sensor, combines the collection timestamp, pass number, equipment unique identifier, and measurement value to form a complete rolling process data record. This record is stored in a local cache in chronological order and uploaded to the production database in batches after each steel pipe is rolled.

[0106] S602. Obtain the standard process parameters corresponding to the current rolling task from the mapping relationship. The standard process parameters include the standard rolling force range, the standard rolling speed range, and the standard rolling temperature range.

[0107] Standard process parameters represent the theoretical range of process parameters pre-set based on the steel pipe material, specifications, and rolling passes. The standard rolling force range refers to the allowable fluctuation range of the rolling force in that pass, derived from the steel pipe deformation resistance calculation formula combined with roll pass parameters. The standard rolling speed range refers to the speed control range to ensure the surface quality and internal structure of the steel pipe, determined based on material properties and temperature conditions. The standard rolling temperature range refers to the temperature range that the steel pipe should maintain during that rolling pass; excessively high temperatures can lead to grain coarsening, while excessively low temperatures can increase deformation resistance.

[0108] Specifically, the system retrieves the corresponding process parameter table from the mapping database based on the current rolling task number. The process parameter table stores the standard parameter ranges for each pass. The standard rolling force range is represented by its upper and lower limits, and the range is calculated using a force-energy parameter model based on the steel pipe's outer diameter, wall thickness reduction, and material yield strength. The standard rolling speed range is retrieved from the process database based on the steel pipe specifications and heating temperature, and the range width is set according to the deformation amount of that pass. The standard rolling temperature range is determined based on the phase transformation temperature and recrystallization temperature of the steel pipe material; for ordinary carbon steel pipes, this range is set to 900 to 1100 degrees Celsius. The system reads and transmits the three retrieved standard range parameters to the local controller of the third-chip identification device. The controller uses these parameters as reference values ​​for real-time monitoring, which are then compared and analyzed with actual measurement data.

[0109] S603. Calculate the deviation between the rolling process data and the standard process parameters, and add it to the historical deviation accumulation value in the equipment usage parameters.

[0110] The deviation value represents the quantified difference between the actual measured rolling process data and the standard process parameters. The historical cumulative deviation value represents the sum of all deviation values ​​throughout the entire service life of the equipment, reflecting the long-term deviation trend of the equipment's operating status. The equipment usage parameters represent the equipment operation statistics recorded in the identification chip, including fields such as cumulative usage time, cumulative rolling tonnage, and historical cumulative deviation value.

[0111] Specifically, the system acquires the measured values ​​of rolling force, rolling speed, and rolling temperature for the current pass and compares them with the corresponding standard ranges. When the measured value is within the standard range, the deviation is recorded as zero. When the measured value exceeds the standard range, the difference between the measured value and the range boundary is calculated as the deviation value for that parameter; a positive deviation value indicates an excess of the upper limit, while a negative deviation value indicates a deficiency of the lower limit. The system calculates the sum of the absolute values ​​of the deviations of the three parameters as the total deviation value for this rolling pass. The controller reads the historical cumulative deviation value of the device from the identification chip and adds the calculated total deviation value to the historical cumulative deviation value to obtain the updated cumulative value. The updated cumulative value is written back to the non-volatile storage area of ​​the identification chip via a third-chip identification device, ensuring that the data is retained even after power failure. The accumulation process employs a dual write verification mechanism: after writing, the data is immediately read back to verify the correctness of the write; if the verification fails, the write operation is repeated, with a maximum of three retries.

[0112] S604. Calculate the equipment anomaly index based on the historical cumulative deviation value and the cumulative rolling tonnage.

[0113] The cumulative rolling tonnage represents the total weight of steel pipes rolled by the equipment from the start of its operation to the current moment. This value is calculated by adding up the weight of each rolled steel pipe. The equipment anomaly index is a quantitative indicator that comprehensively assesses the deviation of the equipment's operating status from the normal level; the higher the value, the more the equipment's status deviates from normal. The preset anomaly threshold is the critical value at which the equipment needs to undergo condition monitoring. This threshold is set based on the equipment type and historical fault statistics.

[0114] Specifically, the system reads two parameters from the identity chip: the historical cumulative deviation value and the cumulative rolling tonnage of the current equipment. The historical cumulative deviation value reflects the cumulative degree of deviation of process parameters from the standard value during equipment operation, while the cumulative rolling tonnage reflects the total workload of the equipment. The system uses a weighted calculation method to calculate the equipment anomaly index. The calculation formula is: the equipment anomaly index equals the historical cumulative deviation value divided by the cumulative rolling tonnage, multiplied by a correction coefficient. The correction coefficient is set according to the equipment type; for rolling mill equipment, the correction coefficient is 1.2, and for guide equipment, it is 0.8. By dividing by the cumulative rolling tonnage, normalization is achieved for equipment with different usage levels, making the anomaly indices of new and old equipment comparable. The calculated equipment anomaly index is compared with a preset anomaly threshold stored in the system configuration file. When the equipment anomaly index value is greater than the preset anomaly threshold, the equipment status marking process is triggered; when the value is less than or equal to the threshold, the current equipment status remains unchanged.

[0115] S605. When the device anomaly index exceeds the preset anomaly threshold, mark the device status as pending detection in the identity chip.

[0116] The device status is represented by a status code recorded in the identity chip, indicating the device's current availability and health status. The "to be inspected" status indicates that the device requires specific inspection or maintenance; devices in this status are temporarily not permitted for normal production use. The status flags in the identity chip are stored using specific bytes, and status switching is achieved by rewriting the value of this byte.

[0117] Specifically, when the equipment anomaly index exceeds a preset anomaly threshold, the controller initiates a status marking program. The program first reads the current equipment status field from the identification chip to verify if the current status is normal. If the current status is normal, the program writes the status code corresponding to the status to be detected into the chip's equipment status field. The status code is represented in hexadecimal, with 0x01 for normal status and 0x02 for the status to be detected. The write operation uses an encrypted write protocol. The program generates a data packet containing the equipment's unique identifier, the current timestamp, and the status code. A cyclic redundancy check (CRC) is calculated on the data packet, and the checksum is appended to the end of the data packet before being written to the chip via a third-party chip identification device. After writing is complete, the program immediately reads back the status field to verify successful writing. Upon successful verification, the status record of the equipment is synchronously updated in the production database, recording the update time and the equipment anomaly index value that triggered the status change. After status marking is completed, the controller generates an alarm message and sends it to the operator's terminal and the maintenance management system. The alarm message includes the equipment number, its track number, the anomaly index value, and the marking time.

[0118] S606. The equipment anomaly index and equipment status are written into the identity chip through the third chip identification device.

[0119] Device anomaly index and device status, as key evaluation parameters of device operating status, need to be persistently stored in the identity chip to ensure that the information can still be read after the device is moved or the system is restarted. The write operation is performed through a third-party chip identification device, which has the hardware interface and communication protocol for reading and writing data to the identity chip.

[0120] Specifically, after calculating the equipment anomaly index and marking the equipment status, the controller organizes the data structure to be written. The data structure includes an equipment anomaly index field, an equipment status field, a data update timestamp field, and a data verification field. The equipment anomaly index is stored in floating-point format, occupying four bytes. The equipment status is stored as a single-byte integer. The timestamp uses a standard time format encoding, occupying eight bytes. The controller calculates a 16-bit cyclic redundancy check value for the aforementioned data fields as the data verification field. The organized data structure is sent to the third chip identification device via a serial communication interface. Upon receiving the write command, the identification device first establishes a communication connection with the chip and sends the write command and data content to the chip via radio frequency signals. After receiving the data, the chip writes the data to the designated storage area and returns an acknowledgment signal to the identification device upon completion. Upon receiving the acknowledgment signal, the identification device performs a readback verification, reading the newly written data and comparing it byte-by-byte with the original data. If the comparison matches, the write is considered successful, and a success status code is returned to the controller. If the comparison does not match, the write operation is re-executed, with a maximum of three retries. If the write still fails, a failure status code is returned to the controller, and a write anomaly log is recorded.

[0121] S607. In the next round of production, when the first chip identification device reads the state to be detected, it refuses to grant operation permission to the roller changing equipment until the state to be detected is cleared.

[0122] The next production cycle indicates a new production cycle that begins after the current rolling task is completed. The first chip identification device reads the equipment status field simultaneously when reading the equipment identification chip at the roll ring change position. "Rejecting access to operation" means the control system will not send a start permission signal to the electrical control circuit of the roll changing equipment, preventing operators from starting the roll changing equipment. "Pending detection status cleared" means that after maintenance personnel complete the equipment inspection and confirm its qualification, the equipment status field in the chip will be rewritten to the normal status.

[0123] Specifically, at the start of a new production task, the operator places the equipment at the designated station for roller ring changing. The first chip identification device automatically activates and reads the complete data from the equipment's identification chip. The identification device first reads the equipment's unique identifier and performs an initial matching verification with the mapping relationship. After successful verification, it continues to read the equipment status field. The control unit parses the status code in the equipment status field. When the status code indicates a pending detection state, the control unit determines that the equipment does not meet the usage conditions. The control unit maintains the access lock state of the roller changing equipment, does not send a start enable signal to the programmable controller of the roller changing equipment, and keeps the main power contactor of the roller changing equipment disconnected. Simultaneously, the control unit displays a warning message on the operation panel indicating that the equipment is in a pending detection state, including the equipment number and the most recent anomaly index value. The operator then contacts maintenance personnel to conduct a specialized inspection of the equipment, including bore size measurement, surface defect inspection, and material hardness testing. After the maintenance personnel complete the inspection and confirm that the equipment is qualified, they use the chip writing function of the maintenance terminal to rewrite the equipment status field to a normal state and register the inspection results in the maintenance record system. After the status is cleared, the first chip identification device rereads the equipment status, verifies that the status is normal, and then unlocks the permission, allowing the operator to start the roller changing equipment.

[0124] S608. After rolling is completed, the cumulative usage parameters in the identity chip are read through the third chip identification device.

[0125] The cumulative usage parameter represents a set of statistical data recorded in the identity chip reflecting the equipment's cumulative workload, including fields such as cumulative rolling tonnage, cumulative working time, and cumulative number of rolled pipes. Cumulative rolling tonnage represents the total weight of steel pipes rolled by the equipment since its first use or last maintenance. Cumulative working time represents the total time the equipment has been in rolling operation. Cumulative number of rolled pipes represents the total number of steel pipes rolled by the equipment.

[0126] Specifically, after each steel pipe is rolled, the third chip identification device initiates a data read request to the identity chip. The identification device establishes a connection with the chip via an radio frequency communication protocol and sends a read command containing the storage address of the cumulative usage parameters. Upon receiving the command, the chip reads the values ​​of the cumulative rolling tonnage field, the cumulative working time field, and the cumulative rolling root number field from the designated storage area, and returns the read data to the identification device via a radio frequency signal. After receiving the data, the identification device performs a cyclic redundancy check to verify data integrity. If the check passes, the data is transmitted to the pass controller. The controller parses the data packet, extracts the values ​​of each cumulative usage parameter, and stores them in local variables. Simultaneously, the controller calculates the incremental value based on the weight of the rolled steel pipe, the rolling time, and the number of steel pipes, and adds the incremental value to the corresponding cumulative parameters to obtain the updated cumulative usage parameters. The updated cumulative usage parameters are written back to the identity chip via the identification device. The write operation uses an erase-then-write method to ensure the completeness of the data update in the storage area. After the write is completed, a readback verification is performed, comparing the updated parameters with the target value before the write. If the comparison matches, the update process for the current cumulative usage parameters is complete.

[0127] S609. Obtain the preset maintenance threshold of the corresponding device from the mapping relationship, compare the cumulative usage parameters with the preset maintenance threshold, and calculate the remaining available quantity.

[0128] The preset maintenance threshold represents the upper limit of cumulative usage parameters pre-set according to the equipment's design life and maintenance specifications. When the cumulative usage parameters reach this threshold, the equipment requires maintenance. Remaining availability represents the remaining usable capacity of the equipment before it requires maintenance, calculated by subtracting the cumulative usage parameters from the preset maintenance threshold. The preset warning value represents the critical remaining availability value used to remind operators to schedule maintenance in advance.

[0129] Specifically, the controller retrieves the corresponding preset maintenance threshold record from the mapping database based on the equipment's unique identifier. The maintenance threshold record contains three fields: cumulative rolling tonnage threshold, cumulative working time threshold, and cumulative rolled ends threshold. Different specifications and materials of equipment have different threshold settings. For rolling mills, the cumulative rolling tonnage threshold is set based on the wear resistance and hardness of the roll surface material; for guide equipment, the cumulative working time threshold is set based on the fatigue life of the rolling elements. The controller compares and calculates each of the read cumulative usage parameters with the corresponding preset maintenance threshold. The remaining rolling tonnage equals the cumulative rolling tonnage threshold minus the current cumulative rolling tonnage; the remaining working time equals the cumulative working time threshold minus the current cumulative working time; and the remaining rolled ends equals the cumulative rolled ends threshold minus the current cumulative rolled ends. The controller uses the minimum value among the three calculated remaining available values ​​as the actual remaining available quantity of the equipment, employing the minimum value principle to ensure that the equipment triggers the maintenance process when any parameter reaches a threshold. After the calculation is completed, the controller compares the remaining available quantity with the preset warning value. The preset warning value is set to 10% of the maintenance threshold. When the remaining available quantity is lower than the preset warning value, the near-maintenance status marking process is triggered.

[0130] S610. When the remaining available quantity is lower than the preset warning value, the device status is marked as near maintenance status in the identity chip and written into the identity chip through the third chip identification device.

[0131] The "Approaching Maintenance" status indicates that the remaining available capacity of the equipment is close to zero but has not yet reached the conditions for mandatory maintenance. This status is used to notify production management personnel in advance to arrange maintenance plans. Status marking is achieved by rewriting the value of the equipment status field in the identification chip. The third chip identification device uses a timestamped recording method when writing the status, recording the time and triggering reason for the status change.

[0132] Specifically, when the controller determines that the remaining available quantity is lower than a preset warning value, it initiates the near-maintenance status marking program. The program first reads the current device status field from the identification chip and checks whether the current status is normal or pending detection. If the current status is normal, the program generates a status code corresponding to the near-maintenance status, represented in hexadecimal as 0x03. The program organizes a data write packet, which includes the device status field, status change timestamp field, remaining available quantity value field, and data verification field. The device status field is written with the near-maintenance status code, the status change timestamp records the current system time, and the remaining available quantity value field stores the actual remaining available quantity at the time the status change was triggered. The program calculates a 16-bit cyclic redundancy check value for the data packet and appends it to the end of the data packet. The controller sends a write command and data packet to the identification chip through a third-chip identification device. After receiving the command, the chip writes the data packet content to the designated storage area and returns an acknowledgment signal upon completion. Upon receiving the acknowledgment, the identification device performs a readback verification, reads the newly written device status field to verify that the value is the near-maintenance status code, and returns a success status to the controller after successful verification. The controller synchronously updates the status record of the device in the production database and sends a maintenance reminder message to the production management system. The message includes the device number, the current remaining availability, and the recommended maintenance time.

[0133] S611. When the remaining available quantity is less than or equal to zero, mark the device status as mandatory maintenance status in the identity chip and write it into the identity chip through the third chip identification device.

[0134] Mandatory maintenance status indicates that the equipment's cumulative usage parameters have reached or exceeded the preset maintenance threshold, requiring immediate maintenance. Equipment in this status is prohibited from continued production use. Remaining available resources less than or equal to zero indicates that at least one cumulative usage parameter has reached its corresponding preset maintenance threshold, and the equipment has no remaining usage capacity. The status write operation is executed immediately upon detecting that the remaining available resources condition is met, preventing the equipment from continuing to operate in an overdue usage state.

[0135] Specifically, when the remaining available quantity calculated by the controller is less than or equal to zero, the mandatory maintenance status marking procedure is immediately initiated. This procedure has higher execution priority than other control tasks, ensuring that the status marking operation is completed first. The procedure generates a status code corresponding to the mandatory maintenance status, represented in hexadecimal as 0x04. The procedure organizes a data write packet containing fields for equipment status, parameter type reaching threshold, overdue value, status change timestamp, and data verification. The mandatory maintenance status code is written to the equipment status field, the parameter type reaching threshold records the specific parameter name triggering mandatory maintenance, and the overdue value field records the specific value of the accumulated parameter usage exceeding the threshold. The procedure calculates a cyclic redundancy check value for the data packet and sends a write command to the identity chip via a third-party chip identification device. The chip executes the write operation and returns a confirmation signal. The identification device performs a readback verification to ensure the status code is written correctly. After successful verification, the controller immediately sends a shutdown signal to the rolling mill main control system. Upon receiving the signal, the main control system executes an orderly shutdown process, stopping the unit operation after the current rolled steel pipe is completed. The controller displays a red warning message on the control panel, indicating that the equipment has entered a mandatory maintenance state. At the same time, it sends an emergency maintenance work order to the maintenance management system. The work order includes the equipment number, the parameters that have reached the threshold, the overdue value, and the current location of the equipment.

[0136] S612. In the next round of production, when the first chip identification device reads the forced maintenance status, it refuses to grant operation permissions to the roller changing equipment.

[0137] The next production cycle refers to the new production cycle that begins after the current production task is completed. The first chip identification device reads the equipment's identity chip simultaneously with the equipment status field and cumulative usage parameters when changing the roller ring position. Denying operating permissions is achieved by locking the electrical start circuit of the roller changing equipment through the control system, preventing operators from using equipment under mandatory maintenance.

[0138] Specifically, during the new production task preparation phase, operators transport the equipment to be used to the roll changing location and place it at the positioning station. Upon detecting the equipment, the first chip identification device automatically initiates a reading program, sending a read command containing the equipment status field and the storage address of accumulated usage parameters to the identification chip. The chip returns data such as the equipment's unique identifier, equipment status field, accumulated rolling tonnage, accumulated working time, and accumulated number of rolled ends. The identification device transmits the data to the local control unit at the roll changing location. The control unit first performs a matching verification between the equipment's unique identifier and the mapping relationship. After successful verification, the control unit parses the equipment status field. If the status code indicates mandatory maintenance, the control unit determines that the equipment does not meet the usage conditions. The control unit maintains the electrical interlock state of the roll changing equipment, not sending a closing command to the main power contactor of the roll changing equipment; the contactor remains open, preventing the roll changing equipment from starting. The control unit displays a warning message on the operation panel indicating that the equipment is in mandatory maintenance status. The warning message is displayed with a red background and includes the equipment number, the name of the parameter that has reached the threshold, the overdue value, and the maintenance work order number. The operator contacts the maintenance department based on the prompt information, and the maintenance personnel perform the prescribed maintenance items according to the maintenance work order. Before the equipment completes maintenance and passes acceptance, it cannot be authorized for use by the first chip identification device to ensure that mandatory maintenance requirements are strictly enforced.

[0139] S613. After completing equipment maintenance and clearing the forced maintenance status through the first chip identification device, and simultaneously resetting the accumulated usage parameters to zero, restore the operation permission to the roller changing equipment.

[0140] Equipment maintenance includes cleaning, lubrication, replacement of worn parts, and performance testing. Forced maintenance status clearing refers to rewriting the equipment status field in the chip to normal status via the first chip identification device. Resetting cumulative usage parameters refers to resetting the cumulative rolling tonnage, cumulative working time, and cumulative rolling roots in the chip to zero. Restoring operating permissions refers to the control system releasing the electrical interlock of the roll changing equipment, allowing operators to start the roll changing equipment for installation work.

[0141] Specifically, after completing maintenance according to the equipment maintenance procedures, maintenance personnel use portable testing instruments to verify the equipment's performance. Verification items include bore size measurement, surface roughness detection, and roll surface hardness testing. Once all test results meet quality standards, the equipment passes maintenance acceptance. Maintenance personnel log into the equipment management system via a maintenance terminal connected to the first chip identification device, entering their employee number and password to complete authentication. The system displays a list of equipment with pending status clearing. The maintenance personnel select the equipment number for which maintenance was just completed, and the system displays a status clearing and parameter zeroing operation interface. After confirming the equipment number is correct, the maintenance personnel click the execute button, and the system generates a data write packet containing a normal status code and a zeroing instruction. The first chip identification device sends a write instruction to the identity chip, rewriting the equipment status field to the normal status code 0x01, and simultaneously writing the values ​​of the cumulative rolling tonnage, cumulative working time, and cumulative rolling root number fields to zero. After the chip completes the write, it returns a confirmation signal, and the identification device performs a readback verification, reading the status field and cumulative usage parameter field to verify the correct values. After successful verification, the system records the maintenance completion time, maintenance personnel's employee number, and test results in the maintenance record database. After the control unit detects that the equipment status has changed to normal, it releases the electrical interlock of the roll changing equipment and sends a closing permission signal to the main power contactor, allowing the operator to start the roll changing equipment for subsequent installation work.

[0142] In some embodiments, after step S613, the method further includes:

[0143] During the rolling process, the operating parameters of the current rolling task are collected by the third chip identification device. These operating parameters include the rolling material type, rolling speed range, rolling temperature range, and reduction per pass. The wear coefficients corresponding to the operating parameters are obtained from the mapping relationship. These wear coefficients include material wear coefficient, speed wear coefficient, temperature wear coefficient, and reduction wear coefficient. The equivalent wear amount of this rolling is calculated based on the wear coefficients and the current rolling tonnage. The equivalent wear amount is added to the cumulative equivalent wear amount in the identity chip. The cumulative equivalent wear amount is read by the third chip identification device as the cumulative usage parameter. The cumulative equivalent wear amount is compared with the equivalent wear amount threshold obtained from the mapping relationship to calculate the remaining equivalent service life. Based on the remaining equivalent service life, life status marking and access control are performed.

[0144] Operating parameters represent the set of rolling conditions affecting equipment wear, including the type of rolling material, rolling speed range, rolling temperature range, and reduction per pass. Wear coefficients represent correction factors quantifying the contribution of different operating conditions to equipment wear, including material wear coefficient, speed wear coefficient, temperature wear coefficient, and reduction wear coefficient. Equivalent wear represents the conversion of actual usage under different operating conditions to equivalent values ​​under standard operating conditions, achieving unified measurement of equipment lifespan consumption under different conditions. Cumulative equivalent wear represents the total accumulated equivalent wear of the equipment. The equivalent wear threshold represents the upper limit of equivalent wear corresponding to the equipment's design life. Remaining equivalent service life represents the remaining equivalent service margin of the equipment, calculated by subtracting the cumulative value from the threshold.

[0145] During the rolling process, the third chip identification device obtains operating parameters from the production system, including the material code extracted from the task order, the speed range read from the speed controller, the temperature range read from the temperature system, and the reduction calculated from the die parameters. The controller retrieves wear coefficients from the mapping database based on the equipment identification code and operating parameters. The material wear coefficient is set according to material hardness (1.0 for carbon steel, 1.3 for low-alloy steel, and 1.6 for stainless steel); the speed wear coefficient is set according to the ratio of the actual speed to the reference speed of 1.5 meters per second; the temperature wear coefficient is obtained from a temperature lookup table (1.0 for 900 to 1000 degrees Celsius, increasing by 0.1 for every 50 degrees Celsius increase); and the reduction wear coefficient is set according to the square of the ratio of the reduction to the reference value of 5 millimeters. The controller obtains the weight of the steel pipe rolled this time as the rolling tonnage and calculates the equivalent wear amount according to the formula: the equivalent wear amount equals the rolling tonnage multiplied by the product of the four wear coefficients. The controller reads the cumulative equivalent wear amount from the chip, adds it to the current equivalent wear amount to obtain an updated value, writes it to the chip, and reads it back for verification. The controller reads the equivalent wear threshold from the database (5,000 equivalent tons for high-speed steel rolls and 8,000 equivalent tons for ceramic guides) and calculates the remaining equivalent service life. When the remaining value is less than 10% of the threshold, it marks the state as nearing maintenance; when the remaining value is less than or equal to zero, it marks the state as forced maintenance and sends a shutdown signal. In the next production cycle, when the first chip identification device reads the forced maintenance state, it refuses to grant operation permission until maintenance is completed and the accumulated equivalent wear is cleared, after which permission is restored.

[0146] The identity recognition and intelligent data management system in the embodiments of this invention are described below from the perspective of hardware processing. Please refer to [link / reference needed]. Figure 7 This is a schematic diagram of a physical device structure for an identity recognition and intelligent data management system in this application embodiment.

[0147] It should be noted that, Figure 7 The structure of the identity recognition and intelligent data management system shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of the present invention.

[0148] like Figure 7 As shown, the identity recognition and intelligent data management system includes a central processing unit (CPU) 701, which can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 702 or programs loaded from storage portion 708 into random access memory (RAM) 703, such as executing the methods described in the above embodiments. The RAM 703 also stores various programs and data required for system operation. The CPU 701, ROM 702, and RAM 703 are interconnected via a bus 704. An input / output (I / O) interface 705 is also connected to the bus 704.

[0149] The following components are connected to I / O interface 705: input section 706 including audio input devices, push-button switches, etc.; output section 707 including a liquid crystal display (LCD) and audio output devices, indicator lights, etc.; storage section 708 including a hard disk, etc.; and communication section 709 including a network interface card such as a LAN (Local Area Network) card, modem, etc. Communication section 709 performs communication processing via a network such as the Internet. Drive 710 is also connected to I / O interface 705 as needed. Removable media 711, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., are installed on drive 710 as needed so that computer programs read from them can be installed into storage section 708 as needed.

[0150] In particular, according to embodiments of the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing computer programs for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 709, and / or installed from removable medium 711. When the computer program is executed by central processing unit (CPU) 701, it performs the various functions defined in the present invention.

[0151] It should be noted that specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this invention, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0152] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. Each block in a flowchart or block diagram may represent a module, program segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those shown in the drawings.

[0153] Specifically, the identity recognition and intelligent data management system of this embodiment includes a processor and a memory. The memory stores a computer program. When the computer program is executed by the processor, it implements the intelligent data management method for multi-roll star-shaped precision rolling mills provided in the above embodiment.

[0154] In another aspect, the present invention also provides a computer-readable storage medium, which may be included in the identity recognition and intelligent data management system described in the above embodiments; or it may exist independently and not assembled into the identity recognition and intelligent data management system. The storage medium carries one or more computer programs, which, when executed by a processor of the identity recognition and intelligent data management system, cause the identity recognition and intelligent data management system to implement the intelligent data management method for multi-roll star-shaped precision rolling mills provided in the above embodiments.

[0155] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0156] As used in the above embodiments, depending on the context, the term "when..." can be interpreted as meaning "if...", "after...", "in response to determining...", or "in response to detecting...". Similarly, depending on the context, the phrase "when determining..." or "if (the stated condition or event) is interpreted as meaning "if determining...", "in response to determining...", "when (the stated condition or event) is detected", or "in response to detecting (the stated condition or event)".

[0157] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This program can be stored in a computer-readable storage medium, and when executed, it can include the processes described in the above method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM or random access memory (RAM), magnetic disks, or optical disks.

Claims

1. A method for intelligent data management of a multi-roll star-shaped precision rolling mill, characterized in that, This method is applied to a multi-roll reduction sizing precision rolling mill, which includes multiple rolling passes. Each rolling pass is equipped with a multi-roll star-shaped precision mill and multi-roll rolling guides. The method includes: embedding an identification chip on the multi-roll star-shaped precision mill and the multi-roll rolling guides, the identification chip containing a unique equipment identifier; assigning pass pattern data to each rolling pass according to the rolling task table, and establishing a mapping relationship between the unique identifier and the pass pattern data; setting a first chip identification device at the roll ring changing position, reading the unique identifier through the first chip identification device, calling the mapping relationship for a first matching verification, and controlling the operation permission of the roll changing equipment according to the first verification result. The first matching verification refers to determining whether the current equipment is the correct equipment required for the current position and task by comparing the read unique identifier with the identifier recorded in the mapping relationship. A second chip identification device is set up at the optical aperture detection position. This device reads the unique identifier and performs a second matching verification by calling the mapping relationship. Based on the result of the second verification, the operating permissions of the equipment are controlled and adjusted. The second matching verification refers to obtaining the theoretical aperture size by calling the mapping relationship after reading the unique identifier and comparing this theoretical aperture size with the measured size obtained from optical detection. A third chip identification device is set up at the rolling pass position. This device reads the unique identifier and performs a third matching verification by calling the mapping relationship for that rolling pass. Based on the result of the third verification, the start-up permissions of the multi-roll reduction sizing precision rolling mill are controlled. The third matching verification refers to comparing the unique identifier of the equipment with the corresponding target identifier in the mapping relationship after the equipment is installed in the rolling pass.

2. The method according to claim 1, characterized in that, The steps of reading the unique identifier code through the first chip identification device, calling the mapping relationship for the first matching verification, and controlling the operation permission of the roll changing equipment based on the first verification result specifically include: reading the unique identifier code through the first chip identification device and reading the equipment's historical usage data from the identity chip; calling the mapping relationship based on the unique identifier code to obtain the corresponding target aperture data and task pass information; determining whether the current state of the equipment meets the roll changing conditions based on the equipment's historical usage data; granting operation permission to the roll changing equipment when the first matching verification passes, and writing a first verification pass identifier to the identity chip, wherein the first matching verification passes when the unique identifier code matches the task pass information and the current state of the equipment meets the roll changing conditions; and refusing to grant operation permission to the roll changing equipment when the first matching verification fails, and writing a verification failure record to the identity chip.

3. The method according to claim 1, characterized in that, The steps of reading the unique identifier code through the second chip identification device, calling the mapping relationship for a second matching verification, and controlling the operation permission of the adjustment device based on the second verification result specifically include: reading the unique identifier code through the second chip identification device and reading the first verification pass identifier from the identity chip; when the existence of the first verification pass identifier is detected, calling the mapping relationship according to the unique identifier code to obtain theoretical aperture size data; obtaining the measured aperture size data of the device through the optical aperture detection device; when the size deviation between the measured aperture size data and the theoretical aperture size data is within a preset deviation range, the second matching verification passes, operation permission is granted to the adjustment device, and the second verification pass identifier is written to the identity chip; when the first verification pass identifier does not exist, or the size deviation exceeds the preset deviation range, the second matching verification fails, operation permission is refused to be granted to the adjustment device, and a verification failure record is written to the identity chip.

4. The method according to claim 1, characterized in that, After the step of controlling the start-up authority of the multi-roll reducing sizing precision rolling mill based on the third verification result, the method further includes: writing the rolling process data into the identity chip through a third identification device, and performing equipment status assessment based on the equipment usage parameters and the rolling process data.

5. The method according to claim 4, characterized in that, The steps of writing the rolling process data into the identity chip via the third identification device and evaluating the equipment status based on the equipment usage parameters and the rolling process data specifically include: during the rolling process, collecting the rolling process data via the third chip identification device, the rolling process data including rolling force, rolling speed, and rolling temperature; obtaining the standard process parameters corresponding to the current rolling task from the mapping relationship, the standard process parameters including standard rolling force range, standard rolling speed range, and standard rolling temperature range; calculating the deviation value between the rolling process data and the standard process parameters, and accumulating it into the historical deviation accumulation value in the equipment usage parameters; calculating the equipment anomaly index based on the historical deviation accumulation value and the cumulative rolling tonnage; when the equipment anomaly index exceeds a preset anomaly threshold, marking the equipment status as a state to be detected in the identity chip; writing the equipment anomaly index and the equipment status into the identity chip via the third chip identification device; in the next round of production, when the first chip identification device reads the state to be detected, refusing to grant operation permissions to the roll changing equipment until the state to be detected is cleared.

6. The method according to claim 1, characterized in that, After the step of controlling the start-up permission of the multi-roll reduction sizing precision rolling mill based on the third verification result, the method further includes: after rolling is completed, reading the cumulative usage parameters in the identity chip through the third chip identification device; obtaining the preset maintenance threshold of the corresponding equipment from the mapping relationship, comparing the cumulative usage parameters with the preset maintenance threshold, and calculating the remaining available quantity; when the remaining available quantity is lower than a preset warning value, marking the equipment status as near maintenance status in the identity chip and writing it into the identity chip through the third chip identification device; when the remaining available quantity is lower than or equal to zero, marking the equipment status as forced maintenance status in the identity chip and writing it into the identity chip through the third chip identification device; in the next round of production, when the first chip identification device reads the forced maintenance status, refusing to grant operation permission to the roll changing equipment; after completing equipment maintenance and clearing the forced maintenance status through the first chip identification device and simultaneously clearing the cumulative usage parameters to zero, restoring operation permission to the roll changing equipment.

7. The method according to claim 6, characterized in that, After the step of controlling the start-up permission of the multi-roll reduction sizing precision rolling mill based on the third verification result, the method further includes: during the rolling process, collecting the operating condition parameters of the current rolling task through the third chip identification device, the operating condition parameters including the rolling material type, rolling speed range, rolling temperature range, and pass reduction; obtaining the wear coefficients corresponding to the operating condition parameters from the mapping relationship, the wear coefficients including material wear coefficient, speed wear coefficient, temperature wear coefficient, and reduction wear coefficient; calculating the equivalent wear amount of this rolling based on the wear coefficient and the current rolling tonnage, and accumulating the equivalent wear amount to the cumulative equivalent wear amount in the identity chip; reading the cumulative equivalent wear amount as the cumulative usage parameter through the third chip identification device; comparing the cumulative equivalent wear amount with the equivalent wear amount threshold obtained from the mapping relationship, calculating the remaining equivalent service life, and performing life status marking and permission control based on the remaining equivalent service life.

8. An identity recognition and intelligent data management system, characterized in that, The identity recognition and intelligent data management system includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to cause the identity recognition and intelligent data management system to perform the method as described in any one of claims 1-7.

9. A computer-readable storage medium comprising instructions, characterized in that, When the instructions are executed on the identity recognition and intelligent data management system, the identity recognition and intelligent data management system performs the method as described in any one of claims 1-7.

10. A computer program product, characterized in that, When the computer program product is run on the identity recognition and intelligent data management system, the identity recognition and intelligent data management system performs the method as described in any one of claims 1-7.

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