A cable auxiliary selection method and device

Abstract

The present invention relates to the technical field of cables. The present invention provides a cable auxiliary selection method and device, including: Step S1: Construct a cable database, and input standard construction scenario information and standard cable parameters into the cable database; Step S2: Obtain the construction scenario information of the actual demand and the historical environmental parameters of the actual construction geographical location, and query the cable database based on the construction scenario information of the actual demand, the historical environmental parameters of the actual construction geographical location, and the cable length demand to obtain the matching available cables and their cable parameters; Step S3: Determine the feasible combination modes of the available cables according to the cable length demand, and push the recommended results; Step S4: Calculate the corresponding cost according to the feasible combination mode of the available cables selected by the user and obtain the construction mode corresponding to the construction scenario, and display the cost corresponding to the feasible combination mode of the available cables selected by the user and the relevant construction mode. The present invention ensures the reliability of cable selection.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and specifically to a method and device for assisting in cable selection. Background Art

[0002] Cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, and so on. They are all composed of single-stranded or multi-stranded wires and insulating layers, and are used to connect circuits, electrical appliances, etc.

[0003] Before cable installation and construction, cables need to be selected. In the existing cable selection technology, cables are usually selected mainly based on the material parameters and electrical parameters of the cables (such as a cable size automatic selection system for transmission cables in CN110544900A), without considering the construction scenario information of the actual requirements and the historical environmental parameters of the actual construction geographical location, which affects the reliability of cable selection. Summary of the Invention

[0004] The present invention provides a method and device for assisting in cable selection to solve the technical problems raised in the above background art.

[0005] To solve the above problems, the present invention discloses a method for assisting in cable selection, including:

[0006] Step S1: Construct a cable database, and input standard construction scenario information and standard cable parameters into the cable database;

[0007] Step S2: Obtain the construction scenario information of the actual requirements and the historical environmental parameters of the actual construction geographical location, and query the cable database based on the construction scenario information of the actual requirements, the historical environmental parameters of the actual construction geographical location, and the cable length requirement to obtain the matching available cables and their cable parameters;

[0008] Step S3: Determine the feasible combination modes of the available cables according to the cable length requirement, and push the recommended results;

[0009] Step S4: Calculate the corresponding cost according to the feasible combination mode of the available cables selected by the user, and obtain the construction method corresponding to the construction scenario, and display the cost and the relevant construction method corresponding to the feasible combination mode of the available cables selected by the user.

[0010] Preferably, the construction scenario information of the actual requirements includes: the actual construction scenario type, the actual construction geographical location, the actual laying scenario, and the actual construction scenario parameter requirements;

[0011] The actual construction scenario parameter requirements include the cable parameters of the actual requirements, and the construction scenario type includes: land, sea, land + sea.

[0012] Preferably, the cable parameters include: the type of the cable, the physical parameters of the cable, the electrical parameters of the cable, the spliceable state of the cable, the heat dissipation performance of the cable, and the cost of the cable;

[0013] The physical parameters of the cable include: the inner diameter of the cable, the outer diameter of the cable, and the cross-sectional area of the cable;

[0014] The electrical parameters of the cable include: the operating voltage of the cable, the resistance of the cable, and the maximum transmission capacity of the cable.

[0015] Preferably, the historical environmental parameters include: the historical environmental temperature, the historical environmental wind speed, and the historical environmental air pressure.

[0016] Preferably, step S2 includes:

[0017] Step S21: Input the construction scenario parameters of the actual requirements, and determine the physical parameters of the standard cable, the electrical parameters of the standard cable, the applicable construction scenario types, the applicable laying scenarios, and the model of the first cable that matches the physical parameters of the cable required in the actual situation, the electrical parameters of the cable required in the actual situation, the actual construction scenario type, and the actual laying scenario;

[0018] Step S22: Obtain the test heat generation curve and the historical heat generation curve of the first cable under the actual required cable power; the test heat generation curve of the first cable is obtained by working at the actual required cable power in the test environment and performing heat generation detection;

[0019] Step S23: Based on the historical environmental parameters of the actual construction geographical location, the test heat generation curve of the first cable, and the historical heat generation curve of the first cable, calculate the theoretical heat dissipation reliability of each first cable, and determine the first cables with the theoretical heat dissipation reliability greater than or equal to the preset heat dissipation reliability as the preliminarily selected available cables.

[0020] Preferably, the theoretical heat dissipation reliability of each cable is calculated based on the following formula;

[0021]

[0022] E i is the theoretical heat dissipation reliability of the i-th cable; Q i is the maximum value of the test heat generation curve of the i-th cable; k i1 is the maximum slope of the test heat generation curve of the i-th cable; k i2 is the maximum slope of the historical heat generation curve of the i-th cable under the actual required cable power; h i is the heat conduction coefficient between the surface of the i-th cable and the external environment; c i is the heat conduction coefficient of the i-th cable; ti0 is the unit temperature; P is the maximum value of the air pressure acquisition values of the historical environment at the actual construction geographical location; P 1 is the minimum value of the air pressure acquisition values of the historical environment at the actual construction geographical location; P 0 is the average value of the air pressure acquisition values of the historical environment at the actual construction geographical location; is the average value of the wind speed acquisition values of the historical environment at the actual construction geographical location; is the minimum value of the wind speed acquisition values of the historical environment at the actual construction geographical location; is the unit wind speed; ε i is the thermal resistance of the i-th cable; ε i0 is the unit thermal resistance; ln is the natural logarithm, and e is the natural constant; t i is the average value of the temperature acquisition values of the historical environment at the actual construction geographical location; t i1 is the maximum value of the temperature acquisition values of the historical environment at the actual construction geographical location; π is taken as 3.14.

[0023] Preferably, it further includes:

[0024] Step S24: Determine the actual wind force evaluation value W based on the historical environment parameters at the actual construction geographical location;

[0025] Step S25: Determine the cable laying state of the initially selected available cable applied to the actual construction geographical location, and determine the historical vibration parameters under the target conditions of the initially selected available cable;

[0026] The target conditions are: the historical laying state of the initially selected available cable is the same as the cable laying state of the initially selected available cable applied to the actual construction geographical location, and the historical environment wind force evaluation value of the initially selected available cable is within the preset range of the actual wind force evaluation value;

[0027] Step S26: Calculate the theoretical vibration reliability of each initially selected available cable based on Step S24 and Step 25, and determine the initially selected available cable with the theoretical vibration reliability greater than or equal to the preset vibration reliability as the available cable.

[0028] Preferably, the actual wind force evaluation value is calculated based on the following formula:

[0029]

[0030] W is the actual wind force evaluation value; lg is the logarithm with base 10; is the average value of the acquisition values of the historical environment wind speed at the actual construction geographical location; ρ is the actual environmental air density at the actual construction geographical location; N 1 is that the acquisition value of the historical environment wind speed at the actual construction geographical location is greater than or equal to Number of times; N 2 is the collected value of the historical environmental wind speed at the actual construction geographical location, less than Number of times; is the maximum value of the collected historical environmental wind speed at the actual construction geographical location.

[0031] Preferably, the theoretical vibration reliability of the initially selected available cable is calculated based on the following formula:

[0032]

[0033] H s is the theoretical vibration reliability of the sth initially selected available cable; d s is the radius of the sth initially selected available cable; E s is the elastic modulus of the sth initially selected available cable; F s is the cable tension of the sth initially selected available cable under non-wind force influence under the target conditions; D s is the flexural rigidity of the sth initially selected available cable; z is the unit length; r s is the average amplitude of the sth initially selected available cable under the target conditions; θ s is the average vibration frequency of the sth initially selected available cable under the target conditions; r s2 is the maximum amplitude of the sth initially selected available cable under the target conditions; M is the corresponding demand value; V s is the surface area of the windward side of the sth initially selected available cable under the target conditions; L s is the maximum suspended length of the sth initially selected available cable in the cable laying state at the actual construction geographical location; (L s , r s )′ is the cable stability correction coefficient obtained by combining L s , r s ; g is the acceleration due to gravity.

[0034] The present invention also discloses a cable auxiliary selection device, including:

[0035] A database construction module for constructing a cable database;

[0036] An input module for inputting the construction scenario parameters actually required;

[0037] An acquisition module for acquiring the historical environmental parameters at the actual construction geographical location;

[0038] A matching module, configured to query a cable database based on construction scenario information of actual requirements, historical environment parameters of the actual construction geographical location, and cable length requirements to obtain matching available cables and their cable parameters;

[0039] A calculation module, configured to calculate the corresponding cost according to the feasible combination modes of the available cables selected by the user;

[0040] A display module, configured to display the cost corresponding to the feasible combination modes of the available cables selected by the user and the relevant construction modes.

[0041] Compared with the prior art, the present invention has the following beneficial effects: Querying a cable database based on construction scenario information of actual requirements, historical environment parameters of the actual construction geographical location, and cable length requirements to obtain matching available cables and their cable parameters ensures reliable selection of available cables;

[0042] Calculating the corresponding cost according to the feasible combination modes of the available cables selected by the user; The display module displays the cost corresponding to the feasible combination modes of the available cables selected by the user and the relevant construction modes, facilitating the user to determine the appropriate feasible combination modes of available cables according to the cost and the relevant construction modes.

[0043] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0044] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0045] Figure 1 It is a flowchart of the method of the present invention. Detailed Embodiments

[0046] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0047] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes, and do not particularly refer to the order or sequence. Nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0049] The present invention provides the following embodiments

[0050] Embodiment 1. The embodiment of the present invention provides a method for assisting in selecting a cable, as Figure 1 shown, including:

[0051] Step S1: Construct a cable database, and input standard construction scenario information and standard cable parameters into the cable database;

[0052] Step S2: Obtain the construction scenario information of the actual demand and the historical environmental parameters of the actual construction geographical location. Based on the construction scenario information of the actual demand, the historical environmental parameters of the actual construction geographical location, and the cable length requirement, query the cable database to obtain the matching available cables and their cable parameters;

[0053] Step S3: Determine the feasible combination modes of the available cables according to the cable length requirement, and push the recommended results;

[0054] Step S4: Calculate the corresponding cost according to the feasible combination mode of the available cables selected by the user and obtain the construction method corresponding to the construction scenario, and display the cost corresponding to the feasible combination mode of the available cables selected by the user and the relevant construction methods.

[0055] Preferably, the construction scenario information of the actual demand includes: the type of the actual construction scenario, the actual construction geographical location, the actual laying scenario, and the requirements for the construction scenario parameters;

[0056] The requirements for the construction scenario parameters include the cable parameters actually required, and the types of construction scenarios include: land, sea, land + sea.

[0057] Preferably, the cable parameters include: the cable model, the physical parameters of the cable, the electrical parameters of the cable, the spliceable state of the cable, the heat dissipation performance of the cable, and the cost of the cable;

[0058] The physical parameters of the cable include: the inner diameter of the cable, the outer diameter of the cable, and the cross-sectional area of the cable;

[0059] The electrical parameters of the cable include: the operating voltage of the cable, the resistance of the cable, and the maximum transmission capacity of the cable.

[0060] Preferably, the historical environmental parameters include: the historical environmental temperature, the historical environmental wind speed, and the historical environmental air pressure.

[0061] The present invention also discloses a cable auxiliary selection device, comprising:

[0062] A database construction module for constructing a cable database;

[0063] An input module for inputting the construction scenario parameters of the actual requirements;

[0064] An acquisition module for acquiring the historical environmental parameters of the actual construction geographical location;

[0065] A matching module for querying the cable database based on the construction scenario information of the actual requirements, the historical environmental parameters of the actual construction geographical location, and the cable length requirement to obtain the matching available cables and their cable parameters;

[0066] A calculation module for calculating the corresponding cost according to the feasible combination mode of the available cables selected by the user;

[0067] A display module for displaying the cost corresponding to the feasible combination mode of the available cables selected by the user and the relevant construction methods.

[0068] The present invention can also adopt the following solution: According to the selected cable model, display its relevant parameters, spliceable state, splicing options. Based on the selection of the splicing options, display the construction scenarios, splicing methods, etc. corresponding to the spliceable cable models. Based on the selected model and quantity of the spliced cables, calculate and display the required pipe diameter, loss, cost, etc. information.

[0069] The beneficial effects of the above technical solutions are: Querying the cable database based on the construction scenario information of the actual requirements, the historical environmental parameters of the actual construction geographical location, and the cable length requirement to obtain the matching available cables and their cable parameters ensures the reliability of the selection of available cables;

[0070] Calculate the corresponding cost according to the feasible combination modes of available cables selected by the user; the display module displays the cost corresponding to the feasible combination modes of available cables selected by the user and the relevant construction methods, so as to facilitate the user to determine the appropriate feasible combination modes of available cables according to the cost and the relevant construction methods.

[0071] The present invention solves the problem raised in the background art: in the existing cable selection technology, cables are usually selected mainly based on the material parameters and electrical parameters of the cables, without considering the construction scenario information of the actual requirements and the historical environmental parameters of the actual construction geographical location, which affects the reliability of cable selection.

[0072] Embodiment 2, on the basis of Embodiment 1, step S2 includes:

[0073] Step S21: Input the construction scenario parameters of the actual requirements, and determine the physical parameters of the standard cable, the electrical parameters of the standard cable, the applicable construction scenario types, the applicable laying scenarios, and the model of the first cable that matches the physical parameters of the cable required in the actual requirements, the electrical parameters of the cable required in the actual requirements, the actual construction scenario type, and the actual laying scenario.

[0074] Step S22: Obtain the test heat generation curve of the first cable and the historical heat generation curve of the first cable under the power of the cable required in the actual requirements; the test heat generation curve of the first cable is obtained by working at the power of the cable required in the actual requirements in a test environment (the test environment is matched based on the actual historical environmental parameters of the laying site, and the average value of the actual historical environment of the laying site can be selected) and performing heat generation detection.

[0075] Step S23: Based on the historical environmental parameters of the actual construction geographical location, the test heat generation curve of the first cable, and the historical heat generation curve of the first cable, calculate the theoretical heat dissipation reliability of each first cable, and determine the first cables with the theoretical heat dissipation reliability greater than or equal to the preset heat dissipation reliability as the initially selected available cables. When the wind speed in the historical environmental parameters where the required cable is located is small, the initially selected available cable can be the said available cable.

[0076] Preferably, calculate the theoretical heat dissipation reliability of each cable based on the following formula;

[0077]

[0078] E i is the theoretical heat dissipation reliability of the i-th cable; Q i is the maximum value of the test heat generation curve of the i-th cable; k i1 is the maximum slope of the test heat generation curve of the i-th cable; k i2 is the maximum slope of the historical heat generation curve of the i-th cable under the power of the cable required in the actual requirements; h iis the thermal conductivity coefficient between the surface of the i-th cable and the external environment; c i is the thermal conductivity coefficient of the i-th cable; t i0 is the unit temperature; P is the maximum value of the air pressure acquisition values of the historical environment at the actual construction geographical location; P 1 is the minimum value of the air pressure acquisition values of the historical environment at the actual construction geographical location; P 0 is the average value of the air pressure acquisition values of the historical environment at the actual construction geographical location; is the average value of the wind speed acquisition values of the historical environment at the actual construction geographical location; is the minimum value of the wind speed acquisition values of the historical environment at the actual construction geographical location; is the unit wind speed; ε i is the thermal resistance of the i-th cable; ε i0 is the unit thermal resistance; ln is the natural logarithm, and e is the natural constant; t i is the average value of the temperature acquisition values of the historical environment at the actual construction geographical location; t i1 is the maximum value of the temperature acquisition values of the historical environment at the actual construction geographical location; π is taken as 3.14.

[0079] The beneficial effects of the above technical solutions are as follows:

[0080] First, based on the physical parameters of the cable required by the actual demand, the electrical parameters of the cable required by the actual demand, the actual construction scenario type, and the actual laying scenario, the cable database is matched to obtain the model of the first cable, realizing the primary selection of the cable;

[0081] Based on the historical environment parameters at the actual construction geographical location, the test heat generation curve of the first cable, and the historical heat generation curve of the first cable, the theoretical heat dissipation reliability of each first cable is calculated. The first cables with a theoretical heat dissipation reliability greater than or equal to the preset heat dissipation reliability are determined as the initially selected available cables, realizing the secondary selection of the cable, ensuring the selection of cables with reliable heat dissipation, and meeting the heat dissipation requirements of the actual construction geographical location;

[0082] Moreover, based on the historical environment parameters at the actual construction geographical location, the test heat generation curve of the first cable (matched with the historical environment state of the actual construction geographical location), and the historical heat generation curve of the first cable, the theoretical heat dissipation reliability of each first cable is calculated, and the calculation is more reliable.

[0083] Example 3, based on Example 1 or 2, further includes:

[0084] Step S24: Determine the actual wind force evaluation value W based on the historical environment parameters at the actual construction geographical location;

[0085] Step S25: Determine the cable laying state of the initially selected available cable applied to the actual construction geographical location, and determine the historical vibration parameters under the target conditions of the initially selected available cable;

[0086] The target conditions are: the historical laying state of the initially selected available cable is the same as the cable laying state of the initially selected available cable applied to the actual construction geographical location, and the historical environmental wind force evaluation value of the initially selected available cable is within the preset range of the actual wind force evaluation value;

[0087] Step S26: Calculate the theoretical vibration reliability of each initially selected available cable based on Step S24 and Step 25, and determine the initially selected available cables with a theoretical vibration reliability greater than or equal to the preset vibration reliability as available cables.

[0088] Preferably, the actual wind force evaluation value is calculated based on the following formula:

[0089]

[0090] W is the actual wind force evaluation value; lg is the logarithm with base 10; is the average value of the collected values of the historical environmental wind speed at the actual construction geographical location; ρ is the actual environmental air density at the actual construction geographical location; N 1 is the number of times the collected value of the historical environmental wind speed at the actual construction geographical location is greater than or equal to ; N 2 is the number of times the collected value of the historical environmental wind speed at the actual construction geographical location is less than ; is the maximum value of the collected values of the historical environmental wind speed at the actual construction geographical location.

[0091] Preferably, the theoretical vibration reliability of the initially selected available cable is calculated based on the following formula:

[0092]

[0093] H s is the theoretical vibration reliability of the sth initially selected available cable; d s is the radius of the sth initially selected available cable; E s is the elastic modulus of the sth initially selected available cable; F s is the cable tension of the sth initially selected available cable under non-wind force influence under the target conditions; D s is the flexural rigidity of the sth initially selected available cable; z is the unit length; r s is the average amplitude of the sth initially selected available cable under the target conditions; θ s is the average vibration frequency of the sth initially selected available cable under the target conditions; rs2 The maximum amplitude for the target condition of the s-th initially selected available cable; M is the corresponding demand value; V s The surface area of the windward side for the target condition of the s-th initially selected available cable; L s The maximum suspended length in the cable laying state at the actual construction geographical location of the s-th initially selected available cable; (L s , r s )′ is the cable stability correction factor obtained by combining L s , r s (obtained based on L s , r s , the table corresponding to the cable stability correction factor or the function of the cable stability correction factor obtained from L s , r s ); g is the acceleration due to gravity.

[0094] The beneficial effects of the above technical solution are as follows:

[0095] When the wind speed at the actual construction geographical location is usually not low, it is necessary to evaluate the vibration state of the initially selected available cable;

[0096] Specifically: Determine the actual wind force evaluation value W based on the historical environmental parameters of the actual construction geographical location, and then determine the historical vibration parameters under the target condition of the initially selected available cable (the historical laying state of the initially selected available cable is the same as the cable laying state of the initially selected available cable applied to the actual construction geographical location, and the historical environmental wind force evaluation value of the initially selected available cable is within the preset range of the actual wind force evaluation value); Ensure the reliability of the historical vibration parameters of the selected initially selected available cable, and then comprehensively evaluate the possible vibration stress state of the initially selected available cable applied to the actual construction geographical location based on the historical vibration parameters of the selected initially selected available cable and the material parameters of the selected initially selected available cable Obtain the theoretical vibration reliability of the initially selected available cable, ensure the selection of available cables with vibration states conforming to the wind force state at the actual construction geographical location, and ensure the reliable use of the available cables at the actual construction geographical location.

[0097] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A cable auxiliary selection method, characterized in that: include: Step S1: construct a cable database, which contains standard construction scenario information and standard cable parameters; Step S2: obtaining the actual construction scene information and the historical environmental parameters of the actual construction location, and querying the cable database to obtain matching available cables and their cable parameters based on the actual construction scene information, the actual historical environmental parameters of the construction location, and the cable length requirements; Step S3: Determine feasible combinations of available cables according to the cable length requirements and push the recommended results; Step S4: according to the feasible combination of available cables selected by the user, the corresponding cost is calculated and the construction method corresponding to the construction scene is obtained, and the cost and related construction method corresponding to the feasible combination of available cables selected by the user are displayed; Step S2 includes: Step S21: inputting the construction scene parameters actually required, determining the physical parameters of the standard cable, the electrical parameters of the standard cable, the applicable construction scene type, the applicable laying scene, the physical parameters of the cable actually required, the electrical parameters of the cable actually required, the actual construction scene type, and the model of the first cable that matches the actual laying scene; Step S22: obtaining a test heating value curve of the first cable and a historical heating value curve of the first cable under the actually required cable power; the test heating value curve of the first cable is obtained by operating the cable under the actually required cable power and performing heating value detection in a test environment; Step S23: based on the historical environmental parameters of the actual construction geographical location, the test heating curve of the first cable, and the historical heating curve of the first cable, the theoretical heat dissipation reliability of each first cable is calculated, and the first cable whose theoretical heat dissipation reliability is greater than or equal to the preset heat dissipation reliability is determined as a preliminarily selected available cable; The theoretical heat dissipation reliability of each cable is calculated based on the following formula; ； is the theoretical heat dissipation reliability of the i-th cable; is the maximum value of the test heating curve of the i-th cable; is the maximum slope of the test heating curve of the i-th cable; is the maximum slope of the historical heating curve of the ith cable under the actual required cable power; is the thermal conductivity between the i-th cable surface and the external environment; is the thermal conductivity of the ith cable; is the unit temperature; The maximum value of the air pressure collected in the historical environment of the actual construction location; The minimum value of the historical environmental air pressure collection value for the actual construction location; It is the average value of the historical environmental air pressure collected at the actual construction location; The average value of wind speed collected in the historical environment of the actual construction location; The minimum value of the wind speed collected in the historical environment of the actual construction location; is the unit wind speed; is the thermal resistance of the ith cable; is the unit thermal resistance; is the natural logarithm, e is the natural constant; The average value of the temperature collected in the historical environment of the actual construction location; The maximum value of the temperature collected from the historical environment of the actual construction location; The value is 3.

14.

2. A cable auxiliary selection method according to claim 1, characterized in that: The actual construction scene information includes: the actual construction scene type, the actual construction geographical location, the actual laying scene, and the actual construction scene parameter requirements; The actual construction scenario parameter requirements include the actual required cable parameters, and the construction scenario types include: land, sea, and land + sea.

3. A cable auxiliary selection method according to claim 1, characterized in that: Cable parameters include: cable model, cable physical parameters, cable electrical parameters, cable splicing status, cable heat dissipation performance, and cable cost; The physical parameters of the cable include: the inner diameter of the cable, the outer diameter of the cable, and the cross-sectional area of ​​the cable; The electrical parameters of the cable include: the operating voltage of the cable, the resistance of the cable, and the maximum transmission capacity of the cable.

4. A cable auxiliary selection method according to claim 1, characterized in that: Historical environmental parameters include: historical environmental temperature, historical environmental wind speed, and historical environmental air pressure.

5. A cable auxiliary selection method according to claim 1, characterized in that: Also includes: Step S24: determining an actual wind force assessment value W based on historical environmental parameters of the actual construction geographical location; Step S25: determining the cable laying state of the initially selected available cables applied to the actual construction geographical location, and determining the historical vibration parameters under the target conditions of the initially selected available cables; The target conditions are: the historical laying state of the initially selected available cables is the same as the cable laying state of the initially selected available cables applied to the actual construction geographical location, and the historical environmental wind force assessment value of the initially selected available cables is within the preset range of the actual wind force assessment value; Step S26: Based on steps S24 and 25, the theoretical vibration reliability of each preliminarily selected available cable is calculated, and the preliminarily selected available cables whose theoretical vibration reliability is greater than or equal to the preset vibration reliability are determined as available cables.

6. A cable auxiliary selection method according to claim 5, characterized in that: The actual wind force assessment value is calculated based on the following formula: ； is the actual wind force assessment value; is the logarithm to base 10; It is the average value of the historical ambient wind speed collected at the actual construction location; is the actual ambient air density at the actual construction location; The historical environmental wind speed collection value of the actual construction location is greater than or equal to The number of times; The historical environmental wind speed collection value of the actual construction location is less than The number of times; It is the maximum value of the historical ambient wind speed collected at the actual construction location.

7. A cable auxiliary selection method according to claim 5, characterized in that: The theoretical vibration reliability of the available cables is preliminarily selected based on the following calculation formula: ； The theoretical vibration reliability of the available cable for the sth preliminary selection; The radius of the available cable is initially selected for the sth time; The elastic modulus of the available cable is preliminarily selected for the sth one; The cable tension not affected by wind force under target conditions for the sth preliminary selection of available cables; The bending stiffness of the available cable is selected for the sth preliminary selection; z is the unit length; The average amplitude under the target condition for the sth preliminary selection of available cables; The average vibration frequency under target conditions for the sth preliminary selection of available cables; is the maximum amplitude of the target condition for the sth preliminary selection of available cables; M is Corresponding demand value; The surface area of ​​the windward side for the target condition of the sth preliminary selection of available cables; The maximum hanging length of the cable in the actual construction geographical location of the sth initially selected available cable under the cable laying state; For combination , The cable stability correction factor obtained; is the acceleration due to gravity.

8. A cable auxiliary selection device, applied to a cable auxiliary selection method as claimed in any one of claims 1 to 7, characterized in that: include: A database building module, used to build a cable database; Input module, used to input construction scene parameters actually required; An acquisition module is used to obtain historical environmental parameters of the actual construction geographical location; A matching module is used to query the cable database to obtain matching available cables and their cable parameters based on the actual construction scene information, historical environmental parameters of the actual construction location, and cable length requirements; A calculation module, used for calculating corresponding costs according to feasible combinations of available cables selected by a user; The display module is used to display the costs and related construction methods corresponding to the feasible combinations of available cables selected by the user.

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