Cable design evaluation method and device, computer equipment and storage medium

Abstract

The invention relates to a cable design evaluation method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring shielding structure data of different types of cables based on cable braided shielding structure design, thereby constructing a cable shielding layer model of each cable; identifying distribution parameter information of each cable shielding layer based on model parameters in each cable shielding layer model, thereby identifying each target model parameter of each cable shielding layer model through a parameter optimization strategy; simulating a current transmission process of each cable shielding layer model to obtain an electromagnetic shielding effect and a cable transmission characteristic of each cable shielding layer model; and based on the electromagnetic shielding effect of each cable shielding layer model and cable transmission characteristics, identifying a comprehensive evaluation result of each cable, and obtaining design scheme evaluation information of each cable. By adopting the method, the evaluation accuracy of the cable shielding structure design can be improved.

Description

Technical Field

[0001] The present application relates to the field of electromagnetic shielding technology, and in particular to a cable design evaluation method, device, computer equipment and storage medium. Background Art

[0002] The electromagnetic shielding of cables is one of the technologies used to reduce coupling with the external environment, from the outside of the cable to the inside of the cable (immunity) and from the cable to other devices (emissivity). It is very important to evaluate the shielding effect of the cable, which can be started from two aspects, namely transfer impedance (Zt) and shielding effectiveness. Transfer impedance is a parameter used to measure the energy of the external electromagnetic field through the cable shielding layer, and is a characteristic parameter. In short, transfer impedance refers to the ratio of the voltage induced on the center core of the cable to the current after the impulse current is injected into the shielded cable under the condition of a certain frequency. At present, in the research of cable shielding structure, there is a lack of a systematic analysis method to compare the impact of different shielding structures on cable performance.

[0003] Existing research is often limited to evaluating and analyzing the transfer impedance (Zt) and shielding effectiveness of cable shielding structures. However, since the design parameters of the cable shielding structure designed by the designer are often different from the design parameters that the designer actually wants to design, directly evaluating the cable shielding structure with the deviation cannot obtain the true evaluation data of the designed cable shielding structure. In addition, the evaluation effect of the cable shielding structure is not simply limited to shielding effectiveness and transfer impedance, but also involves evaluation from other angles, which makes the evaluation accuracy of the cable shielding structure design by the existing technology low. Summary of the invention

[0004] Based on this, it is necessary to provide a cable design evaluation method, device, computer equipment, computer readable storage medium and computer program product to address the above technical issues.

[0005] In a first aspect, the present application provides a method for evaluating cable design. The method comprises:

[0006] Obtain shielding structure data of cables of different models based on cable braided shielding structure design, and build a cable shielding layer model of each cable based on the shielding structure data of each cable;

[0007] Based on the model parameters in each of the cable shielding layer models, the distribution parameter information of each cable shielding layer is identified, and based on each of the model parameters and each of the distribution parameter information, each target model parameter of each cable shielding layer model is identified through a parameter optimization strategy;

[0008] Through the electromagnetic field simulation model, the current transmission process of each cable shielding layer model is simulated to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model;

[0009] Based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, the comprehensive evaluation result of each cable is identified, and the target model parameters corresponding to each cable and the comprehensive evaluation result of each cable are used as the design scheme evaluation information of each cable.

[0010] Optionally, constructing a cable shielding layer model of each cable based on the shielding structure data of each cable includes:

[0011] For each cable, based on the shielding structure data, identifying a data value of each shielding structure type;

[0012] Based on the data value of each shielding structure type, a cable shielding layer model of each cable is constructed through a model construction strategy.

[0013] Optionally, the identifying the distributed parameter information of each cable shielding layer based on the model parameters in each of the cable shielding layer models includes:

[0014] Obtain parameter calculation formulas for different distribution parameters and model parameter requirement information for each distribution parameter, and identify each parameter type corresponding to each model parameter requirement information;

[0015] For each cable shielding layer model, identifying the parameter type corresponding to each model parameter in the cable shielding layer model, and based on the parameter type corresponding to each model parameter, identifying the model parameter of each distributed parameter requirement;

[0016] Based on the model parameters required for each distribution parameter and the parameter calculation formula of each distribution parameter, the parameter value of each distribution parameter is calculated, and the parameter values ​​of all distribution parameters are used as the distribution parameter information of the cable shielding layer corresponding to the cable shielding layer model.

[0017] Optionally, the identifying each target model parameter of each cable shielding layer model through a parameter optimization strategy based on each model parameter and each distribution parameter information includes:

[0018] Obtaining the cable shielding requirement parameters of each cable model, and for each cable shielding layer model, based on the model parameters of the cable shielding layer model and the distribution parameter information of the cable shielding layer model, calculating the new model parameters of the cable shielding layer model and the cable shielding parameters corresponding to the new model parameters by optimizing the parameter algorithm;

[0019] In the case where there are cable shielding parameters that are lower than the cable shielding requirement parameters, the new model parameters corresponding to the cable shielding parameters replace the model parameters, and the step of identifying the parameter type corresponding to each model parameter in the cable shielding layer model is returned to execute, until all cable shielding parameters are greater than the cable shielding requirement parameters, and the new model parameters obtained in the last iteration are used as the target model parameters.

[0020] Optionally, the current transmission process of each cable shielding layer model is simulated by an electromagnetic field simulation model to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, including:

[0021] Based on the target model parameters of each cable shielding layer model, each cable shielding layer model is adjusted to obtain each target cable shielding layer model, and for each target cable shielding layer model, the current transmission process of the cable shielding layer model is simulated through an electromagnetic field simulation model to obtain the transmission information of the target cable shielding layer model and the electromagnetic distribution information of the target cable shielding layer model;

[0022] Based on the transmission information, identifying transmission index values ​​of different transmission types, and based on the electromagnetic distribution information, identifying shielding index values ​​of each electromagnetic shielding type;

[0023] The transmission index value of each of the transmission types is used as the cable transmission characteristic of the cable shielding layer model, and the shielding index value of each of the electromagnetic shielding types is used as the electromagnetic shielding effect of the cable shielding layer model.

[0024] Optionally, the identifying a comprehensive evaluation result of each cable based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model includes:

[0025] Based on each target model parameter of each cable shielding layer model, calculating the cost information of the cable shielding layer corresponding to each cable shielding layer model;

[0026] Based on the transmission index value of each cable shielding layer model in each of the transmission types, a transmission evaluation result of each cable shielding layer is identified through a transmission index evaluation strategy, and based on the shielding index value of each cable shielding layer model in each of the electromagnetic shielding types, a shielding evaluation result of each cable shielding layer is identified through a shielding index evaluation strategy;

[0027] Based on the cost information of each cable shielding layer, the cost evaluation result of each cable shielding layer is calculated, and based on the transmission evaluation result of each cable shielding layer, the shielding evaluation result of each cable shielding layer, and the cost evaluation result of each cable shielding layer, the comprehensive evaluation result of each cable shielding layer is determined.

[0028] In a second aspect, the present application also provides a device for evaluating cable design. The device comprises:

[0029] An acquisition module is used to acquire shielding structure data of cables of different models based on cable braided shielding structure design, and to construct a cable shielding layer model of each cable based on the shielding structure data of each cable;

[0030] An identification module, used to identify the distribution parameter information of each cable shielding layer based on the model parameters in each cable shielding layer model, and identify each target model parameter of each cable shielding layer model through a parameter optimization strategy based on each model parameter and each distribution parameter information;

[0031] A simulation module is used to simulate the current transmission process of each cable shielding layer model through an electromagnetic field simulation model to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model;

[0032] The evaluation module is used to identify the comprehensive evaluation results of each cable based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, and use the target model parameters corresponding to each cable and the comprehensive evaluation results of each cable as the design scheme evaluation information of each cable.

[0033] Optionally, the acquisition module is specifically used to:

[0034] For each cable, based on the shielding structure data, identifying a data value of each shielding structure type;

[0035] Based on the data value of each shielding structure type, a cable shielding layer model of each cable is constructed through a model construction strategy.

[0036] Optionally, the identification module is specifically used to:

[0037] Obtain parameter calculation formulas for different distribution parameters and model parameter requirement information for each distribution parameter, and identify each parameter type corresponding to each model parameter requirement information;

[0038] For each cable shielding layer model, identifying the parameter type corresponding to each model parameter in the cable shielding layer model, and based on the parameter type corresponding to each model parameter, identifying the model parameter of each distributed parameter requirement;

[0039] Based on the model parameters required for each distribution parameter and the parameter calculation formula of each distribution parameter, the parameter value of each distribution parameter is calculated, and the parameter values ​​of all distribution parameters are used as the distribution parameter information of the cable shielding layer corresponding to the cable shielding layer model.

[0040] Optionally, the identification module is specifically used to:

[0041] Obtaining the cable shielding requirement parameters of each cable model, and for each cable shielding layer model, based on the model parameters of the cable shielding layer model and the distribution parameter information of the cable shielding layer model, calculating the new model parameters of the cable shielding layer model and the cable shielding parameters corresponding to the new model parameters by optimizing the parameter algorithm;

[0042] In the case where there are cable shielding parameters that are lower than the cable shielding requirement parameters, the new model parameters corresponding to the cable shielding parameters replace the model parameters, and the step of identifying the parameter type corresponding to each model parameter in the cable shielding layer model is returned to execute, until all cable shielding parameters are greater than the cable shielding requirement parameters, and the new model parameters obtained in the last iteration are used as the target model parameters.

[0043] Optionally, the simulation module is specifically used for:

[0044] Based on the target model parameters of each cable shielding layer model, each cable shielding layer model is adjusted to obtain each target cable shielding layer model, and for each target cable shielding layer model, the current transmission process of the cable shielding layer model is simulated through an electromagnetic field simulation model to obtain the transmission information of the target cable shielding layer model and the electromagnetic distribution information of the target cable shielding layer model;

[0045] Based on the transmission information, identifying transmission index values ​​of different transmission types, and based on the electromagnetic distribution information, identifying shielding index values ​​of each electromagnetic shielding type;

[0046] The transmission index value of each of the transmission types is used as the cable transmission characteristic of the cable shielding layer model, and the shielding index value of each of the electromagnetic shielding types is used as the electromagnetic shielding effect of the cable shielding layer model.

[0047] Optionally, the evaluation module is specifically used to:

[0048] Based on each target model parameter of each cable shielding layer model, calculating the cost information of the cable shielding layer corresponding to each cable shielding layer model;

[0049] Based on the transmission index value of each cable shielding layer model in each of the transmission types, a transmission evaluation result of each cable shielding layer is identified through a transmission index evaluation strategy, and based on the shielding index value of each cable shielding layer model in each of the electromagnetic shielding types, a shielding evaluation result of each cable shielding layer is identified through a shielding index evaluation strategy;

[0050] Based on the cost information of each cable shielding layer, the cost evaluation result of each cable shielding layer is calculated, and based on the transmission evaluation result of each cable shielding layer, the shielding evaluation result of each cable shielding layer, and the cost evaluation result of each cable shielding layer, the comprehensive evaluation result of each cable shielding layer is determined.

[0051] In a third aspect, the present application provides a computer device, wherein the computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of any one of the methods in the first aspect are implemented.

[0052] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of any one of the methods in the first aspect are implemented.

[0053] In a fifth aspect, the present application provides a computer program product. The computer program product includes a computer program, which when executed by a processor

[0054] The above-mentioned cable design evaluation method, device, computer equipment and storage medium obtain shielding structure data of cables of different models designed based on cable braided shielding structure, and construct a cable shielding layer model of each cable based on the shielding structure data of each cable; based on the model parameters in each of the cable shielding layer models, identify the distribution parameter information of each cable shielding layer, and based on each of the model parameters and the distribution parameter information, identify the target model parameters of each cable shielding layer model through parameter optimization strategy; simulate the current transmission process of each cable shielding layer model through an electromagnetic field simulation model to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model; based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, identify the comprehensive evaluation result of each cable, and use the target model parameters corresponding to each cable and the comprehensive evaluation result of each cable as the design scheme evaluation information of each cable. This solution constructs a shielding layer model for each cable to analyze the distributed parameter information of each cable, and analyzes the optimal model parameters (i.e., target model parameters) of the shielding layer of each cable through parameter optimization strategies, thereby optimizing the currently designed cable shielding structure and ensuring that the cable shielding structure being evaluated is the optimal shielding structure under the design conditions, thereby improving the authenticity and accuracy of the evaluation of the cable shielding structure of the design. Then, by simulating the cable transmission process, the electromagnetic shielding effect and cable transmission characteristics of the cable shielding layer are obtained. Finally, the cable shielding layer of different types of cables is comprehensively evaluated from multiple aspects such as cable transmission characteristics and electromagnetic shielding effects, so that the evaluation results of each cable shielding layer are more accurate, thereby comprehensively improving the evaluation accuracy of the cable shielding structure design. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 A schematic flow chart of a method for evaluating cable design in one embodiment;

[0056] Figure 2 A schematic diagram of a cable braided net of a cable braided shielding structure in one embodiment;

[0057] Figure 3 A schematic diagram of a flow chart of an evaluation example of a cable design according to an embodiment;

[0058] Figure 4 A block diagram of an evaluation device designed for a cable in one embodiment;

[0059] Figure 5 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0061] The evaluation method of cable design provided in the embodiment of the present application can be applied to the application environment of the effect evaluation of the cable shielding layer. The method can be applied to the terminal, the server, and the system including the terminal and the server, and is realized through the interaction between the terminal and the server. Among them, the terminal can be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, etc. Among them, the terminal analyzes the distributed parameter information of each cable by constructing the shielding layer model of each cable, and analyzes the optimal model parameters (i.e., target model parameters) of the shielding layer of each cable through the parameter optimization strategy, thereby optimizing the currently designed cable shielding structure, ensuring that the cable shielding structure to be evaluated is the optimal shielding structure under the design conditions, thereby improving the evaluation authenticity and evaluation accuracy of the cable shielding structure of the design. Then, by simulating the cable transmission process, the electromagnetic shielding effect and cable transmission characteristics of the cable shielding layer are obtained. Finally, the cable shielding layer of different types of cables is comprehensively evaluated from multiple aspects such as cable transmission characteristics and electromagnetic shielding effect, so that the evaluation result of each cable shielding layer evaluated is more accurate, thereby comprehensively improving the evaluation accuracy of the cable shielding structure design.

[0062] In one embodiment, Figure 1 As shown, a cable design evaluation method is provided, and the method is applied to a terminal as an example for explanation, including the following steps:

[0063] Step S101, obtaining shielding structure data of cables of different models based on cable braided shielding structure design, and constructing a cable shielding layer model of each cable based on the shielding structure data of each cable.

[0064] In this embodiment, the terminal responds to the upload operation of the design structure information of the cable shielding layer of different types of cables designed by the staff, and obtains the shielding structure data of different types of cables designed based on the cable braided shielding structure, wherein the shielding structure data is the structure data of the cable shielding layer designed by the cable braided shielding structure, such as Figure 2As shown, it is a cable braided net of a cable braided shielding structure, wherein the structural data includes a braiding angle α: the braiding angle α of the braided tape shielding is defined as the inclination angle of the braided tape braiding wire, which usually refers to the angle between the braiding wire and the cable axis. The number of conductors in the bundle N: the definition of the number of conductors in the bundle N refers to the number of conductors contained in a bundle. This number can be determined according to the specific situation and needs. Usually, the appropriate number of conductors is selected for bundle according to the purpose, requirements and design specifications of the cable. Bundling can improve the flexibility of the cable, reduce the appearance size, and increase the appearance surface area for shielding. The number of bundles C in the braided layer: The number of bundles will affect its shielding effect and mechanical properties. Generally, the more bundles in the braided layer, the better the shielding effect and mechanical properties. According to the specific application requirements and design requirements, a suitable braided layer structure and number of bundles can be selected to ensure that the performance of the cable meets the requirements. The diameter of the bundled wire d: the diameter of each metal wire in the braided layer. The radius of the shielding layer a: the distance between the shielding layer and the cable axis. Then, the terminal builds a cable shielding layer model for each cable based on the shielding structure data of each cable. The cable shielding layer model can be constructed by a finite element simulation model.

[0065] Step S102, based on the model parameters in each cable shielding layer model, identifying the distribution parameter information of each cable shielding layer, and based on each model parameter and each distribution parameter information, identifying each target model parameter of each cable shielding layer model through a parameter optimization strategy.

[0066] In this embodiment, the terminal identifies the distributed parameter information of each cable shielding layer based on the model parameters in each cable shielding layer model, and identifies the target model parameters of each cable shielding layer model through a parameter optimization strategy based on each model parameter and each distributed parameter information. The distributed parameters include but are not limited to distributed capacitance, distributed inductance, distributed resistance, distributed point to, shielding transfer impedance and other parameters. Each distributed parameter corresponds to a distributed parameter calculation formula, which is an algorithm for calculating the parameter value of the distributed parameter by calculating the parameter type of each model parameter. The specific process of identifying the distributed parameter information will be described in detail later, wherein the parameter optimization strategy is a strategy for obtaining the target model parameters after optimizing each model parameter based on the Newton-Raphson algorithm.

[0067] Step S103, simulating the current transmission process of each cable shielding layer model through the electromagnetic field simulation model to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model.

[0068] In this embodiment, the terminal simulates the current transmission process of each cable shielding layer model through an electromagnetic field simulation model to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model. The electromagnetic shielding effect includes shielding index values ​​of multiple electromagnetic shielding types, and the cable transmission characteristics include transmission index values ​​of multiple transmission types. The electromagnetic shielding type includes but is not limited to electromagnetic field distribution type, signal transmission type, reflection type, leakage type, etc., and the transmission type includes but is not limited to transmission loss type, bandwidth type, waveform distortion type, etc.

[0069] Step S104, based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, identify the comprehensive evaluation result of each cable, and use the target model parameters corresponding to each cable and the comprehensive evaluation result of each cable as the design scheme evaluation information of each cable.

[0070] In this embodiment, the terminal identifies the comprehensive evaluation result of each cable based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, and uses the target model parameters corresponding to each cable and the comprehensive evaluation result of each cable as the design scheme evaluation information of each cable. The comprehensive evaluation result of each cable is an evaluation result determined based on the transmission evaluation result of each cable shielding layer, the shielding evaluation result of each cable shielding layer, and the cost evaluation result of each cable shielding layer. The specific determination process will be described in detail later.

[0071] Based on the above scheme, by constructing the shielding layer model of each cable, the distributed parameter information of each cable is analyzed, and the optimal model parameters (i.e., target model parameters) of the shielding layer of each cable are analyzed through the parameter optimization strategy, so as to optimize the currently designed cable shielding structure, and ensure that the cable shielding structure to be evaluated is the optimal shielding structure under the design conditions, thereby improving the evaluation authenticity and evaluation accuracy of the cable shielding structure of the design. Then, by simulating the cable transmission process, the electromagnetic shielding effect and cable transmission characteristics of the cable shielding layer are obtained. Finally, the cable shielding layer of different types of cables is comprehensively evaluated from multiple aspects such as cable transmission characteristics and electromagnetic shielding effect, so that the evaluation results of each cable shielding layer are more accurate, thereby comprehensively improving the evaluation accuracy of the cable shielding structure design.

[0072] Optionally, based on the shielding structure data of each cable, a cable shielding layer model of each cable is constructed, including: for each cable, based on the shielding structure data, identifying the data value of each shielding structure type; based on the data value of each shielding structure type, constructing the cable shielding layer model of each cable through a model construction strategy.

[0073] In this embodiment, the terminal identifies the data value of each shielding structure type for each cable based on the shielding structure data, wherein the shielding structure type includes the braiding angle type, the number of wires in the bundle type, the braiding type in the braided layer, the braiding wire diameter type, the radius type of the shielding layer, etc., and the data value includes the braiding angle value, the wire value in the bundle, the number of bundles in the braided layer, the braiding wire diameter, the radius of the shielding layer, etc. Then, based on the data value of each shielding structure type, the terminal constructs the cable shielding layer model of each cable through the model construction strategy. The model construction strategy is a strategy for model construction based on the finite element simulation model.

[0074] Based on the above scheme, the cable shielding layer model of each cable is constructed by identifying the data value of each braided layer structure type, thereby improving the efficiency and accuracy of constructing the cable shielding layer model.

[0075] Optionally, based on the model parameters in each cable shielding layer model, the distributed parameter information of each cable shielding layer is identified, including: obtaining parameter calculation formulas for different distributed parameters and model parameter requirement information for each distributed parameter, and identifying each parameter type corresponding to each model parameter requirement information; for each cable shielding layer model, identifying the parameter type corresponding to each model parameter in the cable shielding layer model, and based on the parameter type corresponding to each model parameter, identifying the model parameter for each distributed parameter requirement; based on the model parameters for each distributed parameter requirement and the parameter calculation formula for each distributed parameter, calculating the parameter value of each distributed parameter, and using the parameter values ​​of all distributed parameters as the distributed parameter information of the cable shielding layer corresponding to the cable shielding layer model.

[0076] In this embodiment, the terminal obtains the parameter calculation formulas of different distributed parameters and the model parameter requirement information of each distributed parameter, and identifies the parameter types corresponding to each model parameter requirement information. Then, for each cable shielding layer model, the terminal identifies the parameter type corresponding to each model parameter in the cable shielding layer model, and identifies the model parameters required for each distributed parameter based on the parameter type corresponding to each model parameter. Finally, the terminal calculates the parameter value of each distributed parameter based on the model parameters required for each distributed parameter and the parameter calculation formula of each distributed parameter, and uses the parameter values ​​of all distributed parameters as the distributed parameter information of the cable shielding layer corresponding to the cable shielding layer model.

[0077] Among them, the calculation formulas of different distributed parameters are as follows. Distributed capacitance of cable: The capacitance between conductors or between conductors and insulation layers in the cable is called distributed capacitance. Distributed capacitance will affect the cable's response speed and frequency to voltage, affecting the signal transmission performance; Distributed inductance: Electromagnetic induction will occur on the conductors or coils in the cable, forming distributed inductance. Distributed inductance will affect the frequency characteristics and transmission delay of the cable, especially in high-frequency or fast signal transmission. Distributed resistance: The resistance of the conductor in the cable will be distributed according to the length or unit area, forming distributed resistance. Distributed resistance will affect the power loss and signal attenuation of the cable, affecting the transmission efficiency and stability of the cable; Distributed conductance: The conductivity of the conductor or insulation material in the cable may also be distributed according to the length or area, forming distributed conductance. Distributed conductance will affect the signal attenuation and interference suppression capabilities of the cable, and affect the anti-interference performance of the cable. Shield transfer impedance: It indicates the amount of electromagnetic energy that various devices can allow to pass through the cable shield. Transfer impedance is a ratio. It can be obtained by dividing the two parameters of the voltage drop V on the cable shield per unit length and the induced current I flowing outside the shield.

[0078] Based on the above scheme, by combining different parameter types of model parameters, the distribution parameters of each cable shielding layer are calculated respectively, so that the shielding layer is analyzed from multiple angles, thereby improving the comprehensiveness of the analysis of the shielding layer.

[0079] Optionally, based on each model parameter and each distributed parameter information, a parameter optimization strategy is used to identify each target model parameter of each cable shielding layer model, including: obtaining each cable shielding requirement parameter of each cable model, and for each cable shielding layer model, based on each model parameter of the cable shielding layer model and each distributed parameter information of the cable shielding layer model, by optimizing a parameter algorithm, calculating each new model parameter of the cable shielding layer model and each cable shielding parameter corresponding to each new model parameter; in the event that a cable shielding parameter is lower than the cable shielding requirement parameter, replacing each model parameter with each new model parameter corresponding to the cable shielding parameter, and returning to execute the parameter type step corresponding to each model parameter in the cable shielding layer model, until all cable shielding parameters are greater than the cable shielding requirement parameter, then using each new model parameter obtained in the last iteration as each target model parameter.

[0080] In this embodiment, the terminal obtains the cable shielding requirement parameters of each cable model, and for each cable shielding layer model, based on the model parameters of the cable shielding layer model and the distributed parameter information of the cable shielding layer model, the terminal calculates the new model parameters of the cable shielding layer model and the cable shielding parameters corresponding to the new model parameters through the optimization parameter algorithm. Among them, the optimization parameter algorithm is the Newton-Raphson algorithm. Specifically, based on different shielding mesh structures (different braiding angles, the number of wires in a bundle, the number of bundles in a braided layer), the thickness of the shielding mesh (diameter of the braided wire), the radius of the shielding layer, and the material properties, the terminal uses the Newton-Raphson algorithm to solve the optimal distributed parameter structure according to actual needs, and satisfies specific impedance matching requirements and model parameters corresponding to the shielding requirements while achieving requirements such as minimizing transmission loss, wherein the demand parameters corresponding to the transmission loss requirements, the demand parameters corresponding to the impedance requirements, and the demand parameters corresponding to the shielding requirements together constitute the cable shielding demand parameters described in this solution.

[0081] When there are cable shielding parameters that are lower than the cable shielding requirement parameters, the terminal will replace each model parameter with the new model parameters corresponding to the cable shielding parameters, and return to execute the parameter type step corresponding to each model parameter in the cable shielding layer model until all cable shielding parameters are greater than the cable shielding requirement parameters. The new model parameters obtained in the last iteration are used as the target model parameters.

[0082] Based on the above scheme, the model parameters are optimized by taking the shielding requirement parameters of each cable as the optimization target, thereby improving the optimization accuracy of the model parameters.

[0083] Optionally, the current transmission process of each cable shielding layer model is simulated through an electromagnetic field simulation model to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, including: based on the target model parameters of each cable shielding layer model, each cable shielding layer model is adjusted to obtain each target cable shielding layer model, and for each target cable shielding layer model, the current transmission process of the cable shielding layer model is simulated through an electromagnetic field simulation model to obtain the transmission information of the target cable shielding layer model and the electromagnetic distribution information of the target cable shielding layer model; based on the transmission information, the transmission index values ​​of different transmission types are identified, and based on the electromagnetic distribution information, the shielding index values ​​of each electromagnetic shielding type are identified; the transmission index values ​​of each transmission type are used as the cable transmission characteristics of the cable shielding layer model, and the shielding index values ​​of each electromagnetic shielding type are used as the electromagnetic shielding effect of the cable shielding layer model.

[0084] In this embodiment, the terminal adjusts each cable shielding layer model based on each target model parameter of each cable shielding layer model to obtain each target cable shielding layer model, and for each target cable shielding layer model, simulates the current transmission process of the cable shielding layer model through an electromagnetic field simulation model to obtain the transmission information of the target cable shielding layer model and the electromagnetic distribution information of the target cable shielding layer model. The current transmission process of the simulated cable shielding layer model is to use electromagnetic field simulation software to perform electromagnetic field simulation analysis on each candidate solution. By simulating the propagation of electromagnetic waves in the shielding structure, its shielding performance and the effect of suppressing electromagnetic interference can be evaluated.

[0085] Then, the terminal identifies the transmission index values ​​of different transmission types based on the transmission information, and identifies the shielding index values ​​of each electromagnetic shielding type based on the electromagnetic distribution information. Finally, the terminal uses the transmission index values ​​of each transmission type as the cable transmission characteristics of the cable shielding layer model, and uses the shielding index values ​​of each electromagnetic shielding type as the electromagnetic shielding effect of the cable shielding layer model.

[0086] Based on the above solution, the terminal identifies the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model by simulating the current transmission process, thereby improving the accuracy of identifying the electromagnetic shielding effect and cable transmission characteristics while avoiding the safety risks of actual testing.

[0087] Optionally, based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, a comprehensive evaluation result of each cable is identified, including: based on the target model parameters of each cable shielding layer model, calculating the cost information of the cable shielding layer corresponding to each cable shielding layer model; based on the transmission index value of each cable shielding layer model in each transmission type, identifying the transmission evaluation result of each cable shielding layer through a transmission index evaluation strategy, and based on the shielding index value of each cable shielding layer model in each electromagnetic shielding type, identifying the shielding evaluation result of each cable shielding layer through a shielding index evaluation strategy; based on the cost information of each cable shielding layer, calculating the cost evaluation result of each cable shielding layer, and based on the transmission evaluation result of each cable shielding layer, the shielding evaluation result of each cable shielding layer, and the cost evaluation result of each cable shielding layer, determining the comprehensive evaluation result of each cable shielding layer.

[0088] In this embodiment, the terminal calculates the cost information of the cable shielding layer corresponding to each cable shielding layer model based on each target model parameter of each cable shielding layer model. The cost information includes the manufacturing cost, material cost, and installation cost of the cable shielding layer. Then, the terminal identifies the transmission evaluation result of each cable shielding layer based on the transmission index value of each cable shielding layer model in each transmission type through the transmission index evaluation strategy, and identifies the shielding evaluation result of each cable shielding layer based on the shielding index value of each cable shielding layer model in each electromagnetic shielding type through the shielding index evaluation strategy. The transmission index evaluation strategy includes the evaluation index information of each transmission type, and the shielding index parity strategy includes the evaluation index information of the electromagnetic shielding types of the United States and Russia. Then, the terminal calculates the cost evaluation result of each cable shielding layer based on the cost information of each cable shielding layer, and determines the comprehensive evaluation result of each cable shielding layer based on the transmission evaluation result of each cable shielding layer, the shielding evaluation result of each cable shielding layer, and the cost evaluation result of each cable shielding layer. Specifically, the terminal presets a first weight value corresponding to the cost evaluation result, a second weight value corresponding to the shielding evaluation result, and a third weight value corresponding to the transmission evaluation result. The terminal then performs weighted summation on each evaluation result based on the weight value of each evaluation result to obtain a first comprehensive evaluation result. The terminal uses all evaluation results and the first comprehensive evaluation result as the comprehensive evaluation result of the pad shielding layer.

[0089] Based on the above scheme, the cable shielding layers of different types of cables are comprehensively evaluated from multiple aspects such as cable transmission characteristics and electromagnetic shielding effects, so that the evaluation results of each cable shielding layer are more accurate.

[0090] This application also provides an evaluation example of a cable design, such as Figure 3 As shown, the specific processing process includes the following steps:

[0091] Step S301, obtaining shielding structure data of cables of different models based on cable braided shielding structure design.

[0092] Step S302: for each cable, based on the shielding structure data, identify the data value of each shielding structure type.

[0093] Step S303: constructing a cable shielding layer model of each cable through a model construction strategy based on the data value of each shielding structure type.

[0094] Step S304, obtaining parameter calculation formulas for different distribution parameters and model parameter requirement information for each distribution parameter, and identifying each parameter type corresponding to each model parameter requirement information.

[0095] Step S305 , for each cable shielding layer model, identifying the parameter type corresponding to each model parameter in the cable shielding layer model, and based on the parameter type corresponding to each model parameter, identifying the model parameter of each distributed parameter requirement.

[0096] Step S306, based on the model parameters of each distribution parameter requirement and the parameter calculation formula of each distribution parameter, the parameter value of each distribution parameter is calculated, and the parameter values ​​of all distribution parameters are used as the distribution parameter information of the cable shielding layer corresponding to the cable shielding layer model.

[0097] Step S307, obtain the cable shielding requirement parameters of each cable model, and for each cable shielding layer model, based on the model parameters of the cable shielding layer model and the distribution parameter information of the cable shielding layer model, calculate the new model parameters of the cable shielding layer model and the cable shielding parameters corresponding to the new model parameters through the parameter optimization algorithm.

[0098] Step S308, when there are cable shielding parameters that are lower than the cable shielding requirement parameters, replace the model parameters with the new model parameters corresponding to the cable shielding parameters, and return to execute the parameter type step corresponding to each model parameter in the cable shielding layer model, until all cable shielding parameters are greater than the cable shielding requirement parameters, and use the new model parameters obtained in the last iteration as the target model parameters.

[0099] Step S309, based on the target model parameters of each cable shielding layer model, adjust each cable shielding layer model to obtain each target cable shielding layer model, and for each target cable shielding layer model, simulate the current transmission process of the cable shielding layer model through the electromagnetic field simulation model to obtain the transmission information of the target cable shielding layer model and the electromagnetic distribution information of the target cable shielding layer model.

[0100] Step S310: identifying transmission index values ​​of different transmission types based on the transmission information, and identifying shielding index values ​​of each electromagnetic shielding type based on the electromagnetic distribution information.

[0101] Step S311, using the transmission index value of each transmission type as the cable transmission characteristic of the cable shielding layer model, and using the shielding index value of each electromagnetic shielding type as the electromagnetic shielding effect of the cable shielding layer model.

[0102] Step S312: Calculate the cost information of the cable shielding layer corresponding to each cable shielding layer model based on the target model parameters of each cable shielding layer model.

[0103] Step S313, based on the transmission index value of each cable shielding layer model in each transmission type, the transmission evaluation result of each cable shielding layer is identified through the transmission index evaluation strategy, and based on the shielding index value of each cable shielding layer model in each electromagnetic shielding type, the shielding evaluation result of each cable shielding layer is identified through the shielding index evaluation strategy.

[0104] Step S314, based on the cost information of each cable shielding layer, calculate the cost evaluation result of each cable shielding layer, and based on the transmission evaluation result of each cable shielding layer, the shielding evaluation result of each cable shielding layer, and the cost evaluation result of each cable shielding layer, determine the comprehensive evaluation result of each cable shielding layer.

[0105] Step S315, taking the target model parameters corresponding to each cable and the comprehensive evaluation result of each cable as the design scheme evaluation information of each cable.

[0106] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0107] Based on the same inventive concept, the embodiment of the present application also provides a cable design evaluation device for implementing the cable design evaluation method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in the embodiments of one or more cable design evaluation devices provided below can refer to the limitations of the cable design evaluation method above, and will not be repeated here.

[0108] In one embodiment, Figure 4 As shown, a cable design evaluation device is provided, including: an acquisition module 410, an identification module 420, a simulation module 430 and an evaluation module 440, wherein:

[0109] An acquisition module 410 is used to acquire shielding structure data of cables of different models based on cable braided shielding structure design, and to construct a cable shielding layer model of each cable based on the shielding structure data of each cable;

[0110] An identification module 420 is used to identify the distribution parameter information of each cable shielding layer based on the model parameters in each cable shielding layer model, and identify each target model parameter of each cable shielding layer model through a parameter optimization strategy based on each model parameter and each distribution parameter information;

[0111] The simulation module 430 is used to simulate the current transmission process of each cable shielding layer model through an electromagnetic field simulation model to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model;

[0112] The evaluation module 440 is used to identify the comprehensive evaluation results of each cable based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, and use the target model parameters corresponding to each cable and the comprehensive evaluation results of each cable as the design scheme evaluation information of each cable.

[0113] Optionally, the acquisition module 410 is specifically configured to:

[0114] For each cable, based on the shielding structure data, identifying a data value of each shielding structure type;

[0115] Based on the data value of each shielding structure type, a cable shielding layer model of each cable is constructed through a model construction strategy.

[0116] Optionally, the identification module 420 is specifically configured to:

[0117] Obtain parameter calculation formulas for different distribution parameters and model parameter requirement information for each distribution parameter, and identify each parameter type corresponding to each model parameter requirement information;

[0118] For each cable shielding layer model, identifying the parameter type corresponding to each model parameter in the cable shielding layer model, and based on the parameter type corresponding to each model parameter, identifying the model parameter of each distributed parameter requirement;

[0119] Based on the model parameters required for each distribution parameter and the parameter calculation formula of each distribution parameter, the parameter value of each distribution parameter is calculated, and the parameter values ​​of all distribution parameters are used as the distribution parameter information of the cable shielding layer corresponding to the cable shielding layer model.

[0120] Optionally, the identification module 420 is specifically configured to:

[0121] Obtaining the cable shielding requirement parameters of each cable model, and for each cable shielding layer model, based on the model parameters of the cable shielding layer model and the distribution parameter information of the cable shielding layer model, calculating the new model parameters of the cable shielding layer model and the cable shielding parameters corresponding to the new model parameters by optimizing the parameter algorithm;

[0122] In the case where there are cable shielding parameters that are lower than the cable shielding requirement parameters, the new model parameters corresponding to the cable shielding parameters replace the model parameters, and the step of identifying the parameter type corresponding to each model parameter in the cable shielding layer model is returned to execute, until all cable shielding parameters are greater than the cable shielding requirement parameters, and the new model parameters obtained in the last iteration are used as the target model parameters.

[0123] Optionally, the simulation module 430 is specifically used for:

[0124] Based on the target model parameters of each cable shielding layer model, each cable shielding layer model is adjusted to obtain each target cable shielding layer model, and for each target cable shielding layer model, the current transmission process of the cable shielding layer model is simulated through an electromagnetic field simulation model to obtain the transmission information of the target cable shielding layer model and the electromagnetic distribution information of the target cable shielding layer model;

[0125] Based on the transmission information, identifying transmission index values ​​of different transmission types, and based on the electromagnetic distribution information, identifying shielding index values ​​of each electromagnetic shielding type;

[0126] The transmission index value of each of the transmission types is used as the cable transmission characteristic of the cable shielding layer model, and the shielding index value of each of the electromagnetic shielding types is used as the electromagnetic shielding effect of the cable shielding layer model.

[0127] Optionally, the evaluation module 440 is specifically configured to:

[0128] Based on each target model parameter of each cable shielding layer model, calculating the cost information of the cable shielding layer corresponding to each cable shielding layer model;

[0129] Based on the transmission index value of each cable shielding layer model in each of the transmission types, a transmission evaluation result of each cable shielding layer is identified through a transmission index evaluation strategy, and based on the shielding index value of each cable shielding layer model in each of the electromagnetic shielding types, a shielding evaluation result of each cable shielding layer is identified through a shielding index evaluation strategy;

[0130] Based on the cost information of each cable shielding layer, the cost evaluation result of each cable shielding layer is calculated, and based on the transmission evaluation result of each cable shielding layer, the shielding evaluation result of each cable shielding layer, and the cost evaluation result of each cable shielding layer, the comprehensive evaluation result of each cable shielding layer is determined.

[0131] Each module in the above cable design evaluation device can be implemented in whole or in part by software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module.

[0132] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 5 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer 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 operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a cable design evaluation method is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0133] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0134] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the steps of any one of the methods in the first aspect are implemented.

[0135] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of any one of the methods in the first aspect are implemented.

[0136] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the steps of any one of the methods in the first aspect.

[0137] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0138] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application 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 memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access 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 and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0139] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0140] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for evaluating cable design, characterized in that: The method comprises: Obtain shielding structure data of cables of different models based on cable braided shielding structure design, and build a cable shielding layer model of each cable based on the shielding structure data of each cable; Based on the model parameters in each of the cable shielding layer models, the distribution parameter information of each cable shielding layer is identified, and based on each of the model parameters and each of the distribution parameter information, each target model parameter of each cable shielding layer model is identified through a parameter optimization strategy; Through the electromagnetic field simulation model, the current transmission process of each cable shielding layer model is simulated to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model; Based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, the comprehensive evaluation result of each cable is identified, and the target model parameters corresponding to each cable and the comprehensive evaluation result of each cable are used as the design scheme evaluation information of each cable.

2. The method according to claim 1, characterized in that: The cable shielding layer model of each cable is constructed based on the shielding structure data of each cable, including: For each cable, based on the shielding structure data, identifying a data value of each shielding structure type; Based on the data value of each shielding structure type, a cable shielding layer model of each cable is constructed through a model construction strategy.

3. The method according to claim 2, characterized in that The step of identifying the distributed parameter information of each cable shielding layer based on the model parameters in each cable shielding layer model comprises: Obtain parameter calculation formulas for different distribution parameters and model parameter requirement information for each distribution parameter, and identify each parameter type corresponding to each model parameter requirement information; For each cable shielding layer model, identifying the parameter type corresponding to each model parameter in the cable shielding layer model, and based on the parameter type corresponding to each model parameter, identifying the model parameter of each distributed parameter requirement; Based on the model parameters required for each distribution parameter and the parameter calculation formula of each distribution parameter, the parameter value of each distribution parameter is calculated, and the parameter values ​​of all distribution parameters are used as the distribution parameter information of the cable shielding layer corresponding to the cable shielding layer model.

4. The method according to claim 3, characterized in that Based on the model parameters and the distributed parameter information, identifying the target model parameters of each cable shielding layer model through a parameter optimization strategy includes: Obtaining the cable shielding requirement parameters of each cable model, and for each cable shielding layer model, based on the model parameters of the cable shielding layer model and the distribution parameter information of the cable shielding layer model, calculating the new model parameters of the cable shielding layer model and the cable shielding parameters corresponding to the new model parameters by optimizing the parameter algorithm; In the case where there are cable shielding parameters that are lower than the cable shielding requirement parameters, the new model parameters corresponding to the cable shielding parameters replace the model parameters, and the step of identifying the parameter type corresponding to each model parameter in the cable shielding layer model is returned to execute, until all cable shielding parameters are greater than the cable shielding requirement parameters, and the new model parameters obtained in the last iteration are used as the target model parameters.

5. The method according to claim 1, characterized in that: The electromagnetic field simulation model is used to simulate the current transmission process of each cable shielding layer model to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, including: Based on the target model parameters of each cable shielding layer model, each cable shielding layer model is adjusted to obtain each target cable shielding layer model, and for each target cable shielding layer model, the current transmission process of the cable shielding layer model is simulated through an electromagnetic field simulation model to obtain the transmission information of the target cable shielding layer model and the electromagnetic distribution information of the target cable shielding layer model; Based on the transmission information, identifying transmission index values ​​of different transmission types, and based on the electromagnetic distribution information, identifying shielding index values ​​of each electromagnetic shielding type; The transmission index value of each of the transmission types is used as the cable transmission characteristic of the cable shielding layer model, and the shielding index value of each of the electromagnetic shielding types is used as the electromagnetic shielding effect of the cable shielding layer model.

6. The method according to claim 1, characterized in that The method of identifying the comprehensive evaluation result of each cable based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model includes: Based on each target model parameter of each cable shielding layer model, calculating the cost information of the cable shielding layer corresponding to each cable shielding layer model; Based on the transmission index value of each cable shielding layer model in each of the transmission types, a transmission evaluation result of each cable shielding layer is identified through a transmission index evaluation strategy, and based on the shielding index value of each cable shielding layer model in each of the electromagnetic shielding types, a shielding evaluation result of each cable shielding layer is identified through a shielding index evaluation strategy; Based on the cost information of each cable shielding layer, the cost evaluation result of each cable shielding layer is calculated, and based on the transmission evaluation result of each cable shielding layer, the shielding evaluation result of each cable shielding layer, and the cost evaluation result of each cable shielding layer, the comprehensive evaluation result of each cable shielding layer is determined.

7. A device for evaluating cable design, characterized in that: The device comprises: An acquisition module is used to acquire shielding structure data of cables of different models based on cable braided shielding structure design, and to construct a cable shielding layer model of each cable based on the shielding structure data of each cable; An identification module, used to identify the distribution parameter information of each cable shielding layer based on the model parameters in each cable shielding layer model, and identify each target model parameter of each cable shielding layer model through a parameter optimization strategy based on each model parameter and each distribution parameter information; A simulation module is used to simulate the current transmission process of each cable shielding layer model through an electromagnetic field simulation model to obtain the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model; The evaluation module is used to identify the comprehensive evaluation results of each cable based on the electromagnetic shielding effect of each cable shielding layer model and the cable transmission characteristics of each cable shielding layer model, and use the target model parameters corresponding to each cable and the comprehensive evaluation results of each cable as the design scheme evaluation information of each cable.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, 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 6 are implemented.

10. A computer program product, comprising 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 6 are implemented.

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