Tension sensor installation angle optimization method, system, device and storage medium

Abstract

The present invention provides a method, system, device and storage medium for optimizing the installation angle of a tension sensor, which is applied to a battery pole piece roller press, wherein a tension sensor is installed on a tension roller, and the method comprises: determining the reverse friction force on the rope and the first angle of the pole piece tension forward moving end based on the wrap angle between the pole piece and the tension roller, and determining the theoretical friction force between the pole piece and the tension roller based on the first angle; determining the actual friction force based on the force projection of the tension sensor; determining the comprehensive friction force based on the theoretical friction force and the actual friction force; determining the optimization objective function based on the projection of the force of the detection center of the tension sensor under the presence and absence of friction; and determining the optimal installation angle of the tension sensor based on the range of the installation angle of the tension sensor, the running direction of the rope and the optimization objective function when the wrap angle between the pole piece and the tension roller is fixed. The present invention can optimize the installation angle of the tension sensor, thereby reducing tension fluctuations.

Description

Technical Field

[0001] The present invention relates to the field of intelligent control technology, and in particular to a method, system, device and storage medium for optimizing the installation angle of a tension sensor. Background Art

[0002] With the rapid development of the lithium battery industry, lithium batteries are being used more and more widely, and the requirements for lithium battery quality are also constantly increasing, which requires the equipment for manufacturing lithium batteries to have higher stability.

[0003] During the rolling process, tension control is an important part that determines battery performance. During the production process of traditional battery pole sheet rolling machines, due to the different installation angles of the tension sensor, the performance of the pole sheet rolling machine is extremely unstable, resulting in large tension fluctuations. The tension fluctuation will affect the stretching of the pole tab of the pole sheet, and thus affect the quality and performance of the battery.

[0004] How to optimize the installation angle of the tension sensor has become a technical problem that urgently needs to be solved. Summary of the invention

[0005] The embodiments of the present invention provide a method, system, device and storage medium for optimizing the installation angle of a tension sensor, so as to solve the problem of large tension fluctuation caused by the uncertain installation position of the current tension sensor.

[0006] In a first aspect, an embodiment of the present invention provides a method for optimizing the installation angle of a tension sensor, which is applied to a battery pole sheet roller press, wherein a tension sensor is installed on a tension roller, and the optimization method comprises:

[0007] Based on the wrap angle of the pole piece and the tension roller, determine the reverse friction force on the rope and the first angle of the positive moving end of the pole piece tension, and based on the first angle, determine the theoretical friction force between the pole piece and the tension roller;

[0008] Determine the actual friction force based on the force projection of the tension sensor;

[0009] Based on the theoretical friction force and the actual friction force, the comprehensive friction force is determined;

[0010] Determine the optimization objective function according to the projection of the force on the detection center of the tension sensor under the conditions of friction and without friction;

[0011] When the wrap angle between the pole piece and the tension roller is fixed, the optimal installation angle of the tension sensor is determined based on the range of the installation angle of the tension sensor, the running direction of the rope and the optimization objective function.

[0012] In a possible implementation, tension sensors with different installation angles are used on both sides of the tension roller;

[0013] Determine the actual friction force based on the force projection of the tension sensor, including:

[0014] Performing force projection on a first tension sensor used on one side to obtain a first force projection formula of the first tension sensor actually on the detection center;

[0015] Perform force projection on the second tension sensor used on the other side to obtain a second force projection formula of the second tension sensor actually on the detection center;

[0016] Based on the first force projection formula and the second force projection formula, the actual friction force is determined.

[0017] In a possible implementation, the comprehensive friction force is determined based on the theoretical friction force and the actual friction force, including:

[0018] The average value of theoretical friction and actual friction is determined as comprehensive friction.

[0019] In a possible implementation, the comprehensive friction force is determined based on the theoretical friction force and the actual friction force, including:

[0020] Determining a first friction force based on a first preset weight and a theoretical friction force;

[0021] Determining a second friction force based on the second preset weight and the actual friction force;

[0022] Based on the sum of the first friction force and the second friction force, a comprehensive friction force is determined; wherein the sum of the first preset weight and the second preset weight is 1.

[0023] In a possible implementation, the projection F of the force on the detection center of the tension sensor under the friction force 有 for:

[0024] ;

[0025] The projection F of the force on the detection center of the tension sensor without friction 无 for:

[0026] ;

[0027] The optimization objective function F is:

[0028] ;

[0029] in, is the fixed angle between the straight line where the fulcrum and axis of the tension sensor are located and the installation surface of the tension sensor, θ is the wrap angle between the pole piece and the tension roller, They are the angles between F1, F2, F3 and the straight line where the tension sensor fulcrum and axis are located. It is the first angle between the reverse friction force on the rope and the positive force F1 of the positive moving end of the pole piece tension, F3 is the friction force, F1 is the positive force of the positive moving end of the pole piece tension, and F2 is the reverse force of the reverse moving end of the pole piece tension.

[0030] In one possible implementation, the optimal installation angle of the tension sensor is for:

[0031] ;

[0032] in, is the angle between F1 and the horizontal direction.

[0033] In a possible implementation, the first angle for:

[0034] ;

[0035] Among them, μ is the friction coefficient, and θ is the wrap angle between the pole piece and the tension roller.

[0036] In a second aspect, an embodiment of the present invention provides a tension sensor installation angle optimization device, which is applied to a battery pole sheet roller press, wherein a tension sensor is installed on a tension roller, and the optimization device comprises:

[0037] A first determination module is used to determine the reverse friction force on the rope and the first angle of the positive moving end of the pole piece tension based on the wrap angle of the pole piece and the tension roller, and determine the theoretical friction force between the pole piece and the tension roller based on the first angle;

[0038] a second determination module, for determining an actual friction force based on a force projection of the tension sensor;

[0039] A third determination module is used to determine the comprehensive friction force based on the theoretical friction force and the actual friction force;

[0040] A fourth determination module is used to determine the optimization objective function according to the projection of the force of the detection center of the tension sensor under the condition of friction and without friction respectively;

[0041] The optimization module is used to determine the optimal installation angle of the tension sensor based on the range of the installation angle of the tension sensor, the running direction of the rope and the optimization objective function when the wrap angle of the pole piece and the tension roller is fixed.

[0042] In a third aspect, an embodiment of the present invention provides a system for optimizing the installation angle of a tension sensor, comprising a pole piece roller press, a tension sensor and a device for optimizing the installation angle of the tension sensor, wherein the tension sensor is installed on the tension roller; the device for optimizing the installation angle of the tension sensor determines the optimal installation angle of the tension sensor based on the optimization method of any one of the first aspects.

[0043] In a fourth aspect, an embodiment of the present invention provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the method described in the first aspect or any possible implementation manner of the first aspect are implemented.

[0044] In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method described in the first aspect or any possible implementation method of the first aspect are implemented.

[0045] The embodiment of the present invention provides a method, system, device and storage medium for optimizing the installation angle of a tension sensor. In order to reduce the influence of friction on tension fluctuation, first, based on the wrap angle of the pole piece and the tension roller, the reverse friction on the rope and the first angle of the positive moving end of the pole piece tension are determined, and based on the first angle, the theoretical friction between the pole piece and the tension roller is determined. Since there is a certain difference between the theoretical friction and the actual friction, it is also necessary to determine the actual friction based on the force projection of the tension sensor. After the theoretical friction and the actual friction are determined respectively, the comprehensive friction can be determined based on the theoretical friction and the actual friction, thereby obtaining the final friction. In order to determine the influence of the installation angle of the tension sensor on the friction, the optimization objective function is also determined based on the projection of the force of the detection center of the tension sensor with and without friction. Finally, when the wrap angle of the pole piece and the tension roller is fixed, the optimal installation angle of the tension sensor is determined based on the range of the installation angle of the tension sensor, the running direction of the rope and the optimization objective function. The present invention first determines the comprehensive friction between the pole piece and the tension roller, and then constructs an optimization objective function to reduce the influence of the friction on the tension fluctuation, so that the optimal installation angle of the tension sensor can be quickly determined based on the range of the installation angle of the tension sensor, the running direction of the rope, and the optimization objective function. In this way, the tension fluctuation can be reduced and the quality of the pole piece can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0047] Figure 1 is a flow chart of an implementation method of optimizing the installation angle of a tension sensor provided by an embodiment of the present invention;

[0048] Figure 2 is a structural schematic diagram of the installation angle of the tension sensor provided by an embodiment of the present invention;

[0049] Figure 3 is a schematic structural diagram of a tension sensor installation angle optimization device provided by an embodiment of the present invention;

[0050] Figure 4 is a schematic diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0051] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0052] In order to make the purpose, technical solutions and advantages of the present invention more clear, specific embodiments will be described below in conjunction with the accompanying drawings.

[0053] As introduced in the background technology, different installation angles of the tension sensor will cause the performance of the pole piece roller press to be extremely unstable, resulting in large tension fluctuations. Large tension fluctuations will not only cause the equipment to be unable to operate stably, but will also affect the stretching of the pole piece's tabs. The smaller the tension fluctuation, the more uniform the tab extension will be, and the higher the quality of the battery will be. How to reduce tension fluctuations by adjusting the installation angle of the tension sensor has become a technical problem that urgently needs to be solved.

[0054] In order to solve the problems of the prior art, the embodiments of the present invention provide a method, system, device and storage medium for optimizing the installation angle of a tension sensor. The method for optimizing the installation angle of a tension sensor provided by the embodiments of the present invention is first introduced below.

[0055] See also Figure 1 and Figure 2 , Figure 1 The flowchart of the optimization method for the installation angle of the tension sensor provided by the embodiment of the present invention is shown. The optimization method is applied to a battery pole sheet roller press, and a tension sensor is installed on the tension roller. Figure 2 The schematic diagram of the structure of the installation angle of the tension sensor provided by the embodiment of the present invention is shown, and the tension sensor and the pole piece are not shown in the figure. The optimization method is described in detail as follows:

[0056] S110, based on the wrap angle of the pole piece and the tension roller, determine the reverse friction force on the rope and the first angle of the positive moving end of the pole piece tension, and based on the first angle, determine the theoretical friction force between the pole piece and the tension roller.

[0057] The tension roller is one of the commonly used equipment in modern industry, mainly used to control and adjust the tension of the material. In the working process of the tension roller, its wrap angle is an important parameter, which refers to the arc of contact between the tension roller and the pole piece, that is, the angle between the surface of the tension roller and the surface of the pole piece wrapped on it. Figure 2 The wrap angle between the middle pole piece and the tension roller is represented by θ. It is the fixed angle between the straight line where the fulcrum and axis of the tension sensor are located and the installation surface of the tension sensor. is the installation angle of the tension sensor, F3 is the friction force, F1 is the positive force at the positive moving end of the pole piece tension, and F2 is the reverse force at the reverse moving end of the pole piece tension. is the angle between F1 and the horizontal direction, They are the angles between F1, F2, F3 and the straight line where the tension sensor fulcrum and axis are located. It is the first angle between the reverse friction force on the rope and the positive force F1 at the positive moving end of the pole piece tension, where the pole piece accelerates in the positive direction, the angular acceleration is a, and the radius of the tension roller is R.

[0058] The known rope friction formula is:

[0059] ;

[0060] According to the torque formula:

[0061] ;

[0062] The formula for the coefficient of friction is:

[0063] ;

[0064] Based on the integration and orthogonal projection of the wrap angle θ between the pole piece and the tension roller, the first angle is obtained The sine of is:

[0065] ;

[0066] Among them, the friction coefficient is μ, based on the above formula, the first angle can be determined .

[0067] in, , bringing the friction coefficient μ into the first angle The friction force angle calculated by theoretical calculation can be obtained from the sine formula of .

[0068] The friction resultant angle obtained based on theory The theoretical friction force between the pole piece and the tension roller can be determined based on the theoretical calculation formula of the friction force.

[0069] Since there is an error between the theoretically calculated friction force and the friction force obtained from actual tests, it is necessary to use the force projection of the tension sensor to calculate the actual friction force.

[0070] S120 . Determine actual friction force based on force projection of the tension sensor.

[0071] Use tension sensors with different mounting angles on both sides of the tension roller.

[0072] In order to obtain the actual friction force angle, the installation angles of the tension sensors on both sides need to be different. Using two projection formulas, the actual magnitude and direction of the friction force can be obtained.

[0073] In this embodiment, force projection can be first performed on the first tension sensor used on one side to obtain a first force projection formula of the first tension sensor actually at the detection center. Then, force projection can be performed on the second tension sensor used on the other side to obtain a second force projection formula of the second tension sensor actually at the detection center. Finally, the actual friction force is determined based on the first force projection formula and the second force projection formula.

[0074] It should be noted that the tension sensor used here is a Mitsubishi tension sensor, an encoder is added to the tension roller, and other external devices can be used to pull the pole piece to move and apply tension.

[0075] The projection formula is as follows:

[0076] ;

[0077] F is the actual force applied to the tension sensor at the detection center, and this value can be directly obtained from the tension sensor.

[0078] Since the installation angles of the tension sensors on both sides are different, the projection of the actual forces of the two tension sensors on the detection center can be obtained, thus obtaining two equations. Based on the two equations, the actual friction force F3 and the angle between F3 and the straight line where the sensor fulcrum and the axis are located can be determined. .

[0079] S130. Determine the comprehensive friction force based on the theoretical friction force and the actual friction force.

[0080] Since the theoretical friction force and the actual friction force are not exactly the same, in order to obtain accurate friction force, it is necessary to determine the comprehensive friction force based on the theoretical friction force and the actual friction force.

[0081] In some embodiments, the average of the theoretical friction force and the actual friction force may be determined as the comprehensive friction force.

[0082] In some embodiments, the first friction force may be first determined based on the first preset weight and the theoretical friction force. Then, the second friction force may be determined based on the second preset weight and the actual friction force. Finally, the comprehensive friction force may be determined based on the sum of the first friction force and the second friction force, wherein the sum of the first preset weight and the second preset weight is 1.

[0083] S140, determining an optimization objective function according to projections of forces on the detection center of the tension sensor with and without friction.

[0084] The tension roller may accelerate or decelerate during operation, causing friction to affect the tension fluctuation. Therefore, the effect of friction on tension can be analyzed to optimize the installation angle of the tension sensor.

[0085] In this embodiment, the projection F of the detection center of the tension sensor under the friction force 有 for:

[0086] ;

[0087] The projection F of the force on the detection center of the tension sensor without friction 无 for:

[0088] ;

[0089] Here, the positive force F1 at the positive moving end of the pole piece tension can be set as a constant value, and the influence of friction on the tension band can be analyzed by the above two formulas.

[0090] Based on the projection F of the force on the detection center of the tension sensor under friction 有 And the projection F of the force on the detection center of the tension sensor without friction 无 The optimization objective function T can be determined.

[0091] Based on the absence of friction, friction will affect the range of fluctuations. Therefore, the optimization objective function T=F 有 -F 无 ,

[0092] The optimization objective function T is:

[0093] ;

[0094] in, is the fixed angle between the straight line where the fulcrum and axis of the tension sensor are located and the installation surface of the tension sensor, θ is the wrap angle between the pole piece and the tension roller, They are the angles between F1, F2, F3 and the straight line where the tension sensor fulcrum and axis are located. It is the first angle between the reverse friction force on the rope and the positive force F1 of the positive moving end of the pole piece tension, F3 is the friction force, F1 is the positive force of the positive moving end of the pole piece tension, and F2 is the reverse force of the reverse moving end of the pole piece tension.

[0095] S150: When the wrap angle between the pole piece and the tension roller is fixed, the optimal installation angle of the tension sensor is determined based on the range of the installation angle of the tension sensor, the running direction of the rope, and the optimization objective function.

[0096] Optimal installation angle of tension sensor for:

[0097] ;

[0098] in, is the angle between F1 and the horizontal direction.

[0099] When the wrap angle θ of the pole piece and the tension roller is fixed, due to Depends on the running direction and installation angle. According to the reasonable installation angle range of the tension sensor and the running direction of the rope, the above optimization objective function T is optimized to obtain the optimal installation angle. .

[0100] The method for optimizing the installation angle of the tension sensor provided by the present invention, in order to reduce the influence of friction on tension fluctuation, firstly, based on the wrap angle of the pole piece and the tension roller, the reverse friction on the rope and the first angle of the positive moving end of the pole piece tension are determined, and based on the first angle, the theoretical friction between the pole piece and the tension roller is determined. Since there is a certain difference between the theoretical friction and the actual friction, it is also necessary to determine the actual friction based on the force projection of the tension sensor. After the theoretical friction and the actual friction are determined respectively, the comprehensive friction can be determined based on the theoretical friction and the actual friction, so as to obtain the final friction. In order to determine the influence of the installation angle of the tension sensor on the friction, the optimization objective function is also determined based on the projection of the force of the detection center of the tension sensor with and without friction. Finally, when the wrap angle of the pole piece and the tension roller is fixed, the optimal installation angle of the tension sensor is determined based on the range of the installation angle of the tension sensor, the running direction of the rope and the optimization objective function. The present invention first determines the comprehensive friction between the pole piece and the tension roller, and then constructs an optimization objective function to reduce the influence of the friction on the tension fluctuation, so that the optimal installation angle of the tension sensor can be quickly determined based on the range of the installation angle of the tension sensor, the running direction of the rope, and the optimization objective function. In this way, the tension fluctuation can be reduced and the quality of the pole piece can be improved.

[0101] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0102] Based on the method for optimizing the installation angle of the tension sensor provided in the above embodiment, the present invention also provides a specific implementation of a device for optimizing the installation angle of the tension sensor applied to the method for optimizing the installation angle of the tension sensor. Please refer to the following embodiment.

[0103] like Figure 3 As shown, a tension sensor installation angle optimization device 300 is provided, which is applied to a battery pole sheet roller press, and a tension sensor is installed on a tension roller. The optimization device 300 includes:

[0104] A first determination module 310 is used to determine the reverse friction force on the rope and the first angle of the positive moving end of the pole piece tension based on the wrap angle of the pole piece and the tension roller, and determine the theoretical friction force between the pole piece and the tension roller based on the first angle;

[0105] A second determination module 320, configured to determine the actual friction force based on the force projection of the tension sensor;

[0106] A third determination module 330 is used to determine the comprehensive friction force based on the theoretical friction force and the actual friction force;

[0107] A fourth determination module 340 is used to determine an optimization objective function according to projections of forces on the detection center of the tension sensor under the presence and absence of friction;

[0108] The optimization module 350 is used to determine the optimal installation angle of the tension sensor based on the range of the installation angle of the tension sensor, the running direction of the rope and the optimization objective function when the wrap angle between the pole piece and the tension roller is fixed.

[0109] In a possible implementation, tension sensors with different installation angles are used on both sides of the tension roller;

[0110] The second determination module 320 is used to perform force projection on the first tension sensor used on one side to obtain a first force projection formula of the first tension sensor actually at the detection center;

[0111] Perform force projection on the second tension sensor used on the other side to obtain a second force projection formula of the second tension sensor actually on the detection center;

[0112] Based on the first force projection formula and the second force projection formula, the actual friction force is determined.

[0113] In a possible implementation, the third determination module 330 is used to determine the average value of the theoretical friction force and the actual friction force as the comprehensive friction force.

[0114] In a possible implementation, the third determination module 330 is configured to determine the first friction force based on the first preset weight and the theoretical friction force;

[0115] Determining a second friction force based on the second preset weight and the actual friction force;

[0116] Based on the sum of the first friction force and the second friction force, a comprehensive friction force is determined; wherein the sum of the first preset weight and the second preset weight is 1.

[0117] In a possible implementation, the projection F of the force on the detection center of the tension sensor under the friction force 有 for:

[0118] ;

[0119] The projection F of the force on the detection center of the tension sensor without friction 无 for:

[0120] ;

[0121] The optimization objective function F is:

[0122] ;

[0123] in, is the fixed angle between the straight line where the fulcrum and axis of the tension sensor are located and the installation surface of the tension sensor, θ is the wrap angle between the pole piece and the tension roller, They are the angles between F1, F2, F3 and the straight line where the tension sensor fulcrum and axis are located. It is the first angle between the reverse friction force on the rope and the positive force F1 of the positive moving end of the pole piece tension, F3 is the friction force, F1 is the positive force of the positive moving end of the pole piece tension, and F2 is the reverse force of the reverse moving end of the pole piece tension.

[0124] In one possible implementation, the optimal installation angle of the tension sensor is for:

[0125] ;

[0126] in, is the angle between F1 and the horizontal direction.

[0127] In a possible implementation, the first angle for:

[0128] ;

[0129] Among them, μ is the friction coefficient, and θ is the wrap angle between the pole piece and the tension roller.

[0130] In a third aspect, the present invention further provides a system for optimizing the installation angle of a tension sensor, comprising a pole piece roller press, a tension sensor and a device for optimizing the installation angle of the tension sensor, wherein the tension sensor is installed on the tension roller; the device for optimizing the installation angle of the tension sensor determines the optimal installation angle of the tension sensor based on the optimization method of any one of the first aspects.

[0131] Figure 4 Schematic diagram of an electronic device provided by an embodiment of the present invention. Figure 4 As shown, the electronic device 4 of this embodiment includes: a processor 40, a memory 41, and a computer program 42 stored in the memory 41 and executable on the processor 40. When the processor 40 executes the computer program 42, the steps in the above-mentioned method for optimizing the installation angle of each tension sensor are implemented, for example Figure 3 Alternatively, when the processor 40 executes the computer program 42, the functions of the modules in the above-mentioned device embodiments are realized, for example, Figure 3 The functions of modules 310 to 350 are shown.

[0132] Exemplarily, the computer program 42 may be divided into one or more modules, which are stored in the memory 41 and executed by the processor 40 to implement the present invention. The one or more modules may be a series of computer program instruction segments capable of implementing specific functions, which are used to describe the execution process of the computer program 42 in the electronic device 4. For example, the computer program 42 may be divided into Figure 3 Modules 310 to 350 are shown.

[0133] The electronic device 4 may include, but is not limited to, a processor 40 and a memory 41. Those skilled in the art will appreciate that Figure 4 It is only an example of the electronic device 4 and does not constitute a limitation of the electronic device 4. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the electronic device may also include input and output devices, network access devices, buses, etc.

[0134] The processor 40 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0135] The memory 41 may be an internal storage unit of the electronic device 4, such as a hard disk or memory of the electronic device 4. The memory 41 may also be an external storage device of the electronic device 4, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 4. Further, the memory 41 may also include both an internal storage unit and an external storage device of the electronic device 4. The memory 41 is used to store the computer program and other programs and data required by the electronic device. The memory 41 may also be used to temporarily store data that has been output or is to be output.

[0136] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0137] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0138] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0139] In the embodiments provided by the present invention, it should be understood that the disclosed devices / electronic devices and methods can be implemented in other ways. For example, the device / electronic device embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0140] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0141] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0142] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned optimization method for the installation angle of each tension sensor can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device that can carry the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium.

[0143] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A method for optimizing the installation angle of a tension sensor, applied to a battery pole sheet roller press, characterized in that: A tension sensor is installed on the tension roller, and tension sensors with different installation angles are used on both sides of the tension roller; the optimization method comprises: Based on the wrap angle of the pole piece and the tension roller, determine the reverse friction force on the rope and the first angle of the positive moving end of the pole piece tension, and based on the first angle, determine the theoretical friction force between the pole piece and the tension roller; Performing force projection on a first tension sensor used on one side to obtain a first force projection formula of the first tension sensor actually on the detection center; Perform force projection on the second tension sensor used on the other side to obtain a second force projection formula of the second tension sensor actually on the detection center; Determine actual friction force based on the first force projection formula and the second force projection formula; Determining a comprehensive friction force based on the theoretical friction force and the actual friction force; Determine an optimization objective function according to projections of forces on the detection center of the tension sensor under conditions of friction and without friction; When the wrap angle between the pole piece and the tension roller is fixed, the optimal installation angle of the tension sensor is determined based on the range of the installation angle of the tension sensor, the running direction of the rope and the optimization objective function; The projection F of the detection center of the tension sensor under friction is 有 for: ； The projection F of the force on the detection center of the tension sensor without friction 无 for: ； The optimization objective function F is: ； The first angle for: ； in, is the fixed angle between the straight line where the fulcrum and axis of the tension sensor are located and the installation surface of the tension sensor, θ is the wrap angle between the pole piece and the tension roller, They are the angles between F1, F2, F3 and the straight line where the tension sensor fulcrum and axis are located. It is the first angle between the reverse friction force on the rope and the positive force F1 at the positive moving end of the pole piece tension, F3 is the friction force, F1 is the positive force at the positive moving end of the pole piece tension, F2 is the reverse force at the reverse moving end of the pole piece tension, and μ is the friction coefficient.

2. The method for optimizing the installation angle of the tension sensor according to claim 1, characterized in that: The step of determining the comprehensive friction force based on the theoretical friction force and the actual friction force comprises: The average value of the theoretical friction force and the actual friction force is determined as the comprehensive friction force.

3. The method for optimizing the installation angle of the tension sensor according to claim 1, characterized in that: The step of determining the comprehensive friction force based on the theoretical friction force and the actual friction force comprises: Determining a first friction force based on a first preset weight and the theoretical friction force; Determining a second friction force based on a second preset weight and the actual friction force; The comprehensive friction force is determined based on the sum of the first friction force and the second friction force; wherein the sum of the first preset weight and the second preset weight is 1.

4. The method for optimizing the installation angle of the tension sensor according to claim 1, characterized in that: The optimal installation angle of the tension sensor for: ； in, is the angle between F1 and the horizontal direction.

5. A tension sensor installation angle optimization system, characterized in that: It comprises a pole piece roller press, a tension sensor and a tension sensor installation angle optimization device, wherein the tension sensor is installed on the tension roller; the tension sensor installation angle optimization device determines the optimal installation angle of the tension sensor based on the optimization method described in any one of claims 1-4.

6. An electronic device, characterized in that: The method comprises a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 4.

7. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

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