Real-time volume diameter determination method and device, computer device and storage medium

Abstract

The application relates to a real-time roll diameter determination method and device, computer equipment, a storage medium and a computer program product, and relates to the technical field of winding batteries. The method comprises the following steps: obtaining a detected current thickness of incoming material and a first current angle of the incoming material roll, and determining a first roll diameter according to the current thickness and the first current angle; obtaining a current incoming material length detected by a length measuring roller, determining a second current angle of the incoming material roll according to the current incoming material length and the current thickness, and determining a second roll diameter according to the current thickness and the second current angle; obtaining a historical average thickness, determining a third roll diameter according to the historical average thickness and the first current angle; and determining a real-time roll diameter according to the first roll diameter, the second roll diameter and the third roll diameter. The method can obtain an accurate real-time roll diameter, thereby guaranteeing the accuracy of the winding speed and the winding tension in the winding process, reducing the waste of the incoming material and improving the qualified rate of the winding product.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of winding battery, and in particular to a real-time winding diameter determination method and device, computer equipment, storage medium and computer program product. BACKGROUND

[0002] The existing real-time winding diameter calculation of cylindrical battery cells is to measure the length of the wound pole piece by an encoder length measuring roller, and then to calculate the real-time winding diameter by using the standard pole piece thickness and the angle of the wound core. However, this method does not take into account the change of the incoming material thickness, and the unevenness of the winding tightness caused by the change of the winding tension. These factors result in inaccurate real-time winding diameter calculation, and the error of the winding diameter calculation is relatively large when the winding core is small, which leads to large speed error, and the speed affects the tension, thereby resulting in substandard product quality and waste of raw materials. SUMMARY

[0003] Therefore, it is necessary to provide a real-time winding diameter determination method, device, computer equipment, computer readable storage medium and computer program product to solve the technical problem of inaccurate winding diameter calculation.

[0004] In a first aspect, the present application provides a real-time winding diameter determination method. The method comprises:

[0005] obtaining a detected current thickness of incoming material and a first current angle of the incoming material wound, and determining a first winding diameter according to the current thickness and the first current angle;

[0006] obtaining a current incoming material length detected by a length measuring roller, determining a second current angle of the incoming material wound according to the current incoming material length and the current thickness, and determining a second winding diameter according to the current thickness and the second current angle;

[0007] obtaining a historical average thickness, and determining a third winding diameter according to the historical average thickness and the first current angle;

[0008] determining a real-time winding diameter according to the first winding diameter, the second winding diameter and the third winding diameter.

[0009] In one of the embodiments, the determination of the real-time winding diameter according to the first winding diameter, the second winding diameter and the third winding diameter comprises:

[0010] obtaining a fusion weight value corresponding to each of the first winding diameter, the second winding diameter and the third winding diameter;

[0011] performing fusion processing on the first winding diameter, the second winding diameter and the third winding diameter according to the fusion weight value to obtain the real-time winding diameter.

[0012] In one of the embodiments, the determining the second current angle of the material roll according to the current material length and the current thickness comprises:

[0013] acquiring a detection position of the length measuring roller and a winding position of the material;

[0014] determining a winding length of the material roll according to the detection position, the winding position and the current material length;

[0015] determining the second current angle of the material roll according to the winding length and the current thickness.

[0016] In one of the embodiments, the determining the winding length of the material roll according to the detection position, the winding position and the current material length comprises:

[0017] acquiring a distance length value between the detection position and the winding position;

[0018] determining the winding length of the material roll according to the distance length value and the current material length.

[0019] In one of the embodiments, the acquiring the historical average thickness comprises:

[0020] acquiring a maximum winding diameter of the historical material roll and a corresponding winding layer number;

[0021] determining the historical average thickness according to the maximum winding diameter and the winding layer number.

[0022] In one of the embodiments, the method further comprises:

[0023] determining a corresponding real-time winding tension according to the real-time winding diameter; the real-time winding tension is used to control a current winding intensity of the material.

[0024] In a second aspect, the application further provides a real-time winding diameter determining device. The device comprises:

[0025] a first winding diameter determining module, configured to acquire a current thickness of the material and a first current angle of the material roll, and determine a first winding diameter according to the current thickness and the first current angle;

[0026] a second winding diameter determining module, configured to acquire a current material length detected by a length measuring roller, determine a second current angle of the material roll according to the current material length and the current thickness, and determine a second winding diameter according to the current thickness and the second current angle;

[0027] a third winding diameter determining module, configured to acquire a historical average thickness, and determine a third winding diameter according to the historical average thickness and the first current angle.

[0028] determining a real-time roll diameter according to the first roll diameter, the second roll diameter and the third roll diameter.

[0029] In a third aspect, the present application provides a computer device. The computer device comprises a memory and a processor. The memory stores a computer program. The processor implements the following steps when executing the computer program:

[0030] obtaining a current thickness of the incoming material and a first current angle of the incoming material roll, and determining a first roll diameter according to the current thickness and the first current angle;

[0031] obtaining a current length of the incoming material detected by the length measuring roller, determining a second current angle of the incoming material roll according to the current length of the incoming material and the current thickness, and determining a second roll diameter according to the current thickness and the second current angle;

[0032] obtaining a historical average thickness, and determining a third roll diameter according to the historical average thickness and the first current angle;

[0033] determining a real-time roll diameter according to the first roll diameter, the second roll diameter and the third roll diameter.

[0034] In a fourth aspect, the present application provides a computer readable storage medium. The computer readable storage medium stores a computer program. The computer program is executed by a processor to implement the following steps:

[0035] obtaining a current thickness of the incoming material and a first current angle of the incoming material roll, and determining a first roll diameter according to the current thickness and the first current angle;

[0036] obtaining a current length of the incoming material detected by the length measuring roller, determining a second current angle of the incoming material roll according to the current length of the incoming material and the current thickness, and determining a second roll diameter according to the current thickness and the second current angle;

[0037] obtaining a historical average thickness, and determining a third roll diameter according to the historical average thickness and the first current angle;

[0038] determining a real-time roll diameter according to the first roll diameter, the second roll diameter and the third roll diameter.

[0039] In a fifth aspect, the present application provides a computer program product. The computer program product comprises a computer program. The computer program is executed by a processor to implement the following steps:

[0040] acquire a current thickness of the incoming material detected and a first current angle of the incoming material roll, and determine a first roll diameter according to the current thickness and the first current angle;

[0041] acquire a current length of the incoming material detected by the length measuring roller, determine a second current angle of the incoming material roll according to the current length of the incoming material and the current thickness, and determine a second roll diameter according to the current thickness and the second current angle;

[0042] acquire a historical average thickness, and determine a third roll diameter according to the historical average thickness and the first current angle;

[0043] determine a real-time roll diameter according to the first roll diameter, the second roll diameter and the third roll diameter.

[0044] The real-time roll diameter determination method, device, computer equipment, storage medium and computer program product comprehensively consider the advantages and disadvantages of three calculation methods, obtain an accurate real-time roll diameter of the incoming material roll through the current thickness of the incoming material, the length of the incoming material and the historical thickness, and guarantee the accuracy of the winding speed and the winding tension in the winding process, thereby reducing the waste of the incoming material and improving the qualified rate of the wound product. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 It is a schematic diagram of the application environment of the real-time roll diameter determination method in one embodiment;

[0046] Figure 2 It is a flowchart of the real-time roll diameter determination method in one embodiment;

[0047] Figure 3 It is a flowchart of the determination step of the second current angle in one embodiment;

[0048] Figure 4 It is a schematic diagram of the positional relationship among the length measuring roller, the roll core and the incoming material in one embodiment;

[0049] Figure 5 It is a complete flowchart of the real-time roll diameter determination method in another embodiment;

[0050] Figure 6 It is a structure block diagram of the real-time roll diameter determination device in one embodiment;

[0051] Figure 7 It is an internal structure diagram of the winding control device in one embodiment. DETAILED DESCRIPTION

[0052] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0053] The real-time roll diameter determination method provided by the embodiments of the present application can be applied in an application environment as shown in Figure 1 . The thickness measuring device 101, the length measuring roller device 102 and the roll core control device 103 communicate with the winding control device 104 through a network. The winding control device 104 comprises a data storage and a microprocessor. The winding control device 104 obtains the current thickness of the winding material from the thickness measuring device 101, the current length of the winding material from the length measuring roller device 102 and the first current angle of the winding from the roll core control device 103. The winding control device 104 also obtains the historical average thickness after the winding is completed from the data storage. Finally, the winding control device 104 calculates the accurate real-time roll diameter by comprehensively considering the above data information. The thickness measuring device 101 can include, but is not limited to, a laser thickness measuring device and an ultrasonic thickness measuring device. The roll core control device 103 and the winding control device 104 can be a programmable logic control system (PLC control system).

[0054] In one embodiment, as shown in Figure 2 , a real-time roll diameter determination method is provided. Taking the winding control device 104 in Figure 1 as an example, the method comprises the following steps:

[0055] Step 201, obtaining the detected current thickness of the material and the first current angle of the material wound on the roll core, and determining the first roll diameter according to the current thickness and the first current angle.

[0056] The current angle is determined by the number of turns of the material wound on the roll core, and is also the angle of the roll core rotated.

[0057] For example, the winding control device 104 obtains the current thickness of the material through the thickness measuring device 101, and obtains the first current angle of the material wound on the roll core through the roll core control device 103. The first roll diameter is calculated according to the formula r i =r0+h*θ, wherein r i is the first roll diameter, r0 is the roll core radius (obtained from the roll core control device 103), h is the current thickness, and θ is the first current angle. It should be noted that the above formula is based on the law of the published Archimedes spiral.

[0058] At step 202, the current material length detected by the length measuring roller is obtained, the second current angle of the material roll is determined according to the current material length and the current thickness, and the second roll diameter is determined according to the current thickness and the second current angle.

[0059] The current material length is the length of the material that has passed through the length measuring roller and is calculated in real time by the length measuring roller.

[0060] For example, the winding control device 104 obtains the current material length of the winding material through the length measuring roller device 102. Based on the current material length and the current thickness, the second current angle is calculated according to the formula disclosed below.

[0061]

[0062] L0 needs to be determined according to the actual scene, and specifically needs to meet the condition that L should be 0 when θ = 0 and r0 is the core radius. The above current thickness is substituted into the parameter b in the formula, and the above current material length is substituted into the parameter L in the formula, r0 is the radius of the core, and the second current angle θ' is calculated. Then similarly, the second roll diameter r i ' is calculated according to the formula r i ', where r i ' is the second roll diameter, r0 is the core radius, h is the current thickness, and θ' is the second current angle.

[0063] At step 203, the historical average thickness is obtained, and the third roll diameter is determined according to the historical average thickness and the first current angle.

[0064] For example, the winding control device 104 queries the historical average thickness of the historical winding product from the data storage. Based on the historical average thickness and the first current angle, the third roll diameter is calculated according to the formula r i ", where r i " is the third roll diameter, r0 is the core radius, h' is the historical average thickness, and θ is the first current angle.

[0065] At step 204, the real-time roll diameter is determined according to the first roll diameter, the second roll diameter, and the third roll diameter.

[0066] For example, the three roll diameters have advantages and disadvantages. The first roll diameter has the best real-time performance, but does not take into account the material slipping during winding, which may lead to inaccuracy; the second roll diameter takes into account the material slipping, but has poor real-time performance; the third roll diameter takes into account the material thickness and the material slipping, but has a large lag, so it can only be used as a trend compensation for the real-time roll diameter. Therefore, the winding control device 104 combines the above three roll diameters to calculate the real-time roll diameter.

[0067] The real-time roll diameter determination method determines the real-time roll diameter of the incoming material according to the current thickness, the length of the incoming material and the historical thickness, considers the advantages and disadvantages of the three calculation methods, and obtains the real-time roll diameter of the incoming material, thereby ensuring the accuracy of the winding speed and the winding tension in the winding process, reducing the waste of the incoming material and improving the qualified rate of the winding product.

[0068] In one embodiment, the step 204 determines the real-time roll diameter according to the first roll diameter, the second roll diameter and the third roll diameter, and can be implemented by the following steps:

[0069] Step one, obtaining the fusion weight corresponding to the first roll diameter, the second roll diameter and the third roll diameter respectively;

[0070] Step two, fusing the first roll diameter, the second roll diameter and the third roll diameter according to the fusion weight to obtain the real-time roll diameter.

[0071] For example, the fusion weight of the first roll diameter is 0.6 because the real-time performance of the first roll diameter is the best, the fusion weight of the second roll diameter is 0.3 because the second roll diameter considers the slippage of the incoming material during winding, and the fusion weight of the third roll diameter is 0.1 because the third roll diameter is based on historical data and is used as a trend compensation.

[0072] In this embodiment, the fusion weight of the three roll diameters is trained in advance, the advantages and disadvantages of the three roll diameters are considered, and the accurate real-time roll diameter is calculated, thereby ensuring the accuracy of the winding speed and the winding tension in the winding process, reducing the waste of the incoming material and improving the qualified rate of the winding product.

[0073] In one embodiment, as shown in Figure 3 The step 202 determines the second current angle of the incoming material according to the current length and the current thickness, and can be implemented by the following steps:

[0074] Step 301, obtaining the detection position of the length measuring roller and the winding position of the incoming material;

[0075] Step 302, determining the winding length of the incoming material according to the detection position, the winding position and the current length of the incoming material;

[0076] Step 303, determining the second current angle of the incoming material according to the winding length and the current thickness.

[0077] In the same embodiment, the step 302 determines the winding length of the incoming material according to the detection position, the winding position and the current length of the incoming material, and can be implemented by the following steps:

[0078] Step one, obtain the distance length value between the detection position and the winding position;

[0079] Step two, according to the distance length value and the current material length, determine the winding length of the material roll.

[0080] Exemplarily, as shown in Figure 4 , the winding length of the material roll wound by the winding core is not equal to the current material length detected by the length detector. Therefore, the current material length detected by the length detector needs to be subtracted by the distance length value (such as the arc length from point O5 to point O4 and the line segment length from point O4 to point O3 in Figure 4 ) between the detection position and the winding position, so as to obtain the winding length of the material roll wound by the winding core.

[0081] In this embodiment, the winding length of the material roll wound by the winding core is obtained through the detection position of the length detector and the winding position of the material roll, and the accurate second current angle is obtained based on the accurate winding length.

[0082] In one embodiment, the above step 203 of obtaining the historical average thickness can also be implemented by the following steps:

[0083] Step one, obtain the maximum winding diameter of the historical material roll and the corresponding winding layer number;

[0084] Step two, according to the maximum winding diameter and the winding layer number, determine the historical average thickness.

[0085] Exemplarily, the product winding diameter (and the maximum winding diameter) of the historical winding product is obtained by querying, and the historical average thickness of each layer of winding is calculated according to the product winding diameter and the winding layer number. If there are multiple historical winding products, the historical average thickness of each historical winding product can be calculated, and finally the average value is calculated as the final required historical average thickness.

[0086] In this embodiment, the historical average thickness of winding obtained by querying and calculating can be used as a trend compensation reference in real-time winding diameter calculation, and thus a more accurate real-time winding diameter is obtained.

[0087] In one embodiment, the above method further comprises: according to the real-time winding diameter, determining the corresponding real-time winding tension; and the real-time winding tension is used to control the current winding intensity of the material.

[0088] Exemplarily, after the real-time winding diameter is calculated, the corresponding real-time winding tension is calculated by the formula T i = T0*[1-k*(A / B)], A = r i -r min , B = r max -r min , where T iis a current winding tension value under a current roll diameter, T0 is an initial winding tension value (preset by a user), k is a winding tension coefficient (which can be preset by a user, generally taken as 0.6-0.8), r i is a current roll diameter, r min is a minimum roll diameter (which is a roll core roll diameter), r max is a maximum roll diameter (which is a product roll diameter of a winding product).

[0089] In the embodiment, the corresponding current winding tension value is calculated in real time according to the roll diameter, and then the winding process of the incoming material is accurately controlled, so as to reduce the waste of the incoming material and improve the qualified rate of the winding product.

[0090] In another embodiment, as shown in Figure 5 a real-time roll diameter determination method is provided, comprising the following steps:

[0091] Step 501, obtaining a detected current thickness of the incoming material and a first current angle of the incoming material winding, and determining a first roll diameter according to the current thickness and the first current angle.

[0092] Step 502, obtaining a current incoming material length detected by a length measuring roller, and obtaining a detection position of the length measuring roller and a winding position of the incoming material.

[0093] Step 503, obtaining a distance length value between the detection position and the winding position, and determining a winding length of the incoming material winding according to the distance length value and the current incoming material length.

[0094] Step 504, determining a second current angle of the incoming material winding according to the winding length and the current thickness.

[0095] Step 505, determining a second roll diameter according to the current thickness and the second current angle.

[0096] Step 506, obtaining a maximum roll diameter of a historical incoming material winding and a corresponding winding layer number, and determining a historical average thickness according to the maximum roll diameter and the winding layer number.

[0097] Step 507, determining a third roll diameter according to the historical average thickness and the first current angle.

[0098] Step 508, obtaining a fusion weight value corresponding to each of the first roll diameter, the second roll diameter and the third roll diameter, and performing fusion processing on the first roll diameter, the second roll diameter and the third roll diameter according to the fusion weight value to obtain a real-time roll diameter.

[0099] Step 509, determining a corresponding real-time winding tension according to the real-time roll diameter; the real-time winding tension is used to control a current winding degree of the incoming material.

[0100] Exemplarily, the above method can be applied to a winding battery process, a winding control device performing the above method can be a programmable logic control system (PLC control system), and the winding control device obtains the current thickness of the electrode raw material from a thickness measuring device, the current raw material length from a length measuring roller device, and the first current angle of the raw material winding from a winding core control device through controller area network (CANopen) communication, wherein the thickness measuring device has a repeat accuracy of ±0.3 μm and is arranged behind a unwinding roller and before laser cutting.

[0101] In this embodiment, by detecting from the raw material source and accurately calculating the real-time winding diameter in the winding process through the above method, the problem of inaccurate calculation of the real-time winding diameter caused by large changes in the thickness of the raw material and poor winding tension control is solved, the winding speed is accurately matched, and the winding tension is accurately controlled, the waste of intermediate materials and the waste of winding time caused by manual measurement and correction after winding are reduced, and the product yield and equipment efficiency are improved.

[0102] It should be understood that, although each step in the flowchart involved in each of the above embodiments is displayed in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other sequences. Moreover, at least part of the steps in the flowchart involved in each of the above embodiments can include multiple steps or stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least part of other steps or steps or stages in other steps.

[0103] Based on the same inventive concept, the embodiments of the present application also provide a real-time winding diameter determination device for implementing the above-mentioned real-time winding diameter determination method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more real-time winding diameter determination device embodiments provided below can refer to the limitations of the real-time winding diameter determination method in the above text, which will not be repeated here.

[0104] In one embodiment, as shown in Figure 6 a real-time winding diameter determination device is provided, comprising: a first winding diameter determination module 601, a second winding diameter determination module 602, a third winding diameter determination module 603, and a real-time winding diameter determination module 604, wherein:

[0105] The first roll diameter determination module 601 is configured to acquire the detected current thickness of the material and a first current angle of the material roll, and determine a first roll diameter according to the current thickness and the first current angle.

[0106] The second roll diameter determination module 602 is configured to acquire a current material length detected by the length measuring roller, determine a second current angle of the material roll according to the current material length and the current thickness, and determine a second roll diameter according to the current thickness and the second current angle.

[0107] The third roll diameter determination module 603 is configured to acquire a historical average thickness, and determine a third roll diameter according to the historical average thickness and the first current angle.

[0108] The real-time roll diameter determination module 604 is configured to determine a real-time roll diameter according to the first roll diameter, the second roll diameter and the third roll diameter.

[0109] In an embodiment, the real-time roll diameter determination module 604 is further configured to acquire fusion weights corresponding to the first roll diameter, the second roll diameter and the third roll diameter respectively, and perform fusion processing on the first roll diameter, the second roll diameter and the third roll diameter according to the fusion weights to obtain the real-time roll diameter.

[0110] In an embodiment, the second roll diameter determination module 602 is further configured to acquire a detection position of the length measuring roller and a winding position of the material, determine a winding length of the material roll according to the detection position, the winding position and the current material length, and determine the second current angle of the material roll according to the winding length and the current thickness.

[0111] In an embodiment, the second roll diameter determination module 602 is further configured to acquire a distance length value between the detection position and the winding position, and determine the winding length of the material roll according to the distance length value and the current material length.

[0112] In an embodiment, the third roll diameter determination module 603 is further configured to acquire a maximum roll diameter of the historical material roll and a corresponding winding layer number, and determine the historical average thickness according to the maximum roll diameter and the winding layer number.

[0113] In an embodiment, the device further includes a tension determination module configured to determine a real-time winding tension corresponding to the real-time roll diameter, and the real-time winding tension is used to control a current winding intensity of the material.

[0114] The modules in the real-time roll diameter determination device can be realized by software, hardware or a combination thereof. The modules can be embedded in or independent of a processor in a computer device in a hardware form, or stored in a memory in a computer device in a software form, so as to be called and executed by a processor to perform operations corresponding to the modules.

[0115] In one embodiment, a winding control device is provided, which can be a terminal, and an internal structure diagram of the terminal can be as shown in Figure 7 The device includes a processor, a memory, an input / output interface, and a communication interface. The processor, the memory, and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the device is configured to provide computing and control capabilities. The memory of the device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The input / output interface of the device is configured to exchange information between the processor and external devices. The communication interface of the device is configured to communicate with external terminals in a wired or wireless manner. The wireless manner can be achieved through WIFI, mobile cellular network, NFC (Near Field Communication), or other technologies. The computer program is executed by the processor to implement a real-time roll diameter determination method.

[0116] Those skilled in the art can understand that Figure 7 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the winding control device to which the scheme of the present application is applied. The specific winding control device can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0117] In one embodiment, a computer device is provided, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the following steps:

[0118] Obtain a current thickness of the incoming material detected and a first current angle of the incoming material roll, and determine a first roll diameter according to the current thickness and the first current angle;

[0119] Obtain a current incoming material length detected by the length measuring roller, determine a second current angle of the incoming material roll according to the current incoming material length and the current thickness, and determine a second roll diameter according to the current thickness and the second current angle;

[0120] Obtain a historical average thickness, and determine a third roll diameter according to the historical average thickness and the first current angle;

[0121] Determine a real-time roll diameter according to the first roll diameter, the second roll diameter, and the third roll diameter.

[0122] In one embodiment, a computer device is also provided, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the steps in the above method embodiments.

[0123] In one embodiment, a computer readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, implements the following steps:

[0124] A current thickness of the incoming material detected and a first current angle of the incoming material being coiled are obtained, and a first roll diameter is determined according to the current thickness and the first current angle;

[0125] A current length of the incoming material detected by the length measuring roller is obtained, a second current angle of the incoming material being coiled is determined according to the current length of the incoming material and the current thickness, and a second roll diameter is determined according to the current thickness and the second current angle;

[0126] A historical average thickness is obtained, and a third roll diameter is determined according to the historical average thickness and the first current angle;

[0127] A real-time roll diameter is determined according to the first roll diameter, the second roll diameter and the third roll diameter.

[0128] In one embodiment, a computer readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, implements the steps in the above method embodiments.

[0129] In one embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the following steps:

[0130] A current thickness of the incoming material detected and a first current angle of the incoming material being coiled are obtained, and a first roll diameter is determined according to the current thickness and the first current angle;

[0131] A current length of the incoming material detected by the length measuring roller is obtained, a second current angle of the incoming material being coiled is determined according to the current length of the incoming material and the current thickness, and a second roll diameter is determined according to the current thickness and the second current angle;

[0132] A historical average thickness is obtained, and a third roll diameter is determined according to the historical average thickness and the first current angle;

[0133] A real-time roll diameter is determined according to the first roll diameter, the second roll diameter and the third roll diameter.

[0134] In one embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps in the above method embodiments.

[0135] It should be noted that the user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data need to comply with relevant laws, regulations and standards of the country and region.

[0136] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing related hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, the processes of the above-mentioned embodiments of each method can be included. In the embodiments provided in the present application, any reference to memory, database or other medium can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0137] The technical features of the above embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0138] The above-described embodiments are merely illustrative of several embodiments of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A real-time roll diameter determination method, characterized by, The method comprises: obtaining a detected current thickness of the material and a first current angle of the material being wound, and determining a first roll diameter according to the current thickness and the first current angle; obtaining a current material length detected by a length measuring roller, determining a second current angle of the material being wound according to the current material length and the current thickness, and determining a second roll diameter according to the current thickness and the second current angle; obtaining a historical average thickness, and determining a third roll diameter according to the historical average thickness and the first current angle; determining a real-time roll diameter according to fusion weights corresponding to the first roll diameter, the second roll diameter and the third roll diameter respectively; wherein the step of determining the roll diameter according to the thickness and the angle is based on the law of Archimedes spiral, and the second current angle is calculated according to the following formula: wherein L is the current material length, b is the current thickness, θ is the second current angle, r0 is the roll core radius, and L0 needs to be determined according to the actual scene, and specifically needs to meet the condition that L0 is 0 when θ = 0 and r0 is the roll core radius.

2. The method of claim 1, wherein, The determination of the real-time roll diameter according to the fusion weights corresponding to the first roll diameter, the second roll diameter and the third roll diameter respectively comprises: obtaining the fusion weights corresponding to the first roll diameter, the second roll diameter and the third roll diameter respectively; performing fusion processing on the first roll diameter, the second roll diameter and the third roll diameter according to the fusion weights to obtain the real-time roll diameter.

3. The method of claim 1, wherein, The determination of the second current angle of the material being wound according to the current material length and the current thickness comprises: obtaining a detection position of the length measuring roller and a winding position of the material; determining a winding length of the material being wound according to the detection position, the winding position and the current material length; determining the second current angle of the material being wound according to the winding length and the current thickness.

4. The method of claim 3, wherein, The determination of the winding length of the material being wound according to the detection position, the winding position and the current material length comprises: obtaining a distance length value between the detection position and the winding position; determining the winding length of the material being wound according to the distance length value and the current material length.

5. The method of claim 1, wherein, The obtaining of the historical average thickness comprises: obtaining a maximum roll diameter of historical material winding and a corresponding winding layer number; determining the historical average thickness according to the maximum roll diameter and the winding layer number.

6. The method of claim 1, wherein, The method further comprises: determining a corresponding real-time winding tension according to the real-time roll diameter; the real-time winding tension is used to control a current winding intensity of the material.

7. A real-time roll diameter determination apparatus characterized by comprising: The device for performing the steps of the method in any one of claims 1 to 6 comprises: a first roll diameter determination module, configured to obtain a detected current thickness of the material and a first current angle of the material being wound, and determine a first roll diameter according to the current thickness and the first current angle; a second roll diameter determination module, configured to obtain a current material length detected by a length measuring roller, determine a second current angle of the material being wound according to the current material length and the current thickness, and determine a second roll diameter according to the current thickness and the second current angle; and a third roll diameter determination module, configured to obtain a historical average thickness, and determine a third roll diameter according to the historical average thickness and the first current angle. a third roll diameter determination module configured to obtain a historical average thickness, and determine a third roll diameter based on the historical average thickness and the first current angle; a real-time roll diameter determination module configured to determine a real-time roll diameter based on the first roll diameter, the second roll diameter, and the third roll diameter.

8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 6.

9. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 6.

10. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 6.

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