Cable auxiliary selection method and device

Abstract

The invention relates to the technical field of cables, and provides a cable auxiliary selection method and device, and the method comprises the steps: S1, constructing a cable database, and inputting standard construction scene information and standard cable parameters into the cable database; s2, acquiring construction scene information of an actual demand and historical environment parameters of an actual construction geographic position, and querying a cable database based on the construction scene information of the actual demand, the historical environment parameters of the actual construction geographic position and a cable length demand to obtain a matched available cable and cable parameters thereof; s3, determining a feasible combination mode of available cables according to cable length requirements, and pushing a recommendation result; and S4, according to the feasible combination mode of the available cable selected by the user, calculating the corresponding cost, obtaining the construction mode corresponding to the construction scene, and displaying the cost corresponding to the feasible combination mode of the available cable selected by the user and the related construction mode. The selection reliability of the cable is ensured.

Description

Technical Field

[0001] The present invention relates to the field of cable technology, and in particular to a cable auxiliary selection method and device. Background Art

[0002] Cables include power cables, control cables, compensation cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wire and insulation layer, used to connect circuits, electrical appliances, etc.

[0003] Before cable installation, it is necessary to select cables. In existing cable selection technologies, cables are usually selected mainly based on the material parameters and electrical parameters of the cables (such as CN110544900A, an automatic selection system for transmission cable sizes), without considering the actual construction scene information and the historical environmental parameters of the actual construction location, which affects the reliability of cable selection. Summary of the invention

[0004] The present invention provides a cable auxiliary selection method and device to solve the technical problems raised by the above background technology.

[0005] In order to solve the above problems, the present invention discloses a cable auxiliary selection method, comprising:

[0006] Step S1: construct a cable database, which contains standard construction scenario information and standard cable parameters;

[0007] 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;

[0008] Step S3: Determine feasible combinations of available cables according to the cable length requirements and push the recommended results;

[0009] 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.

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

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

[0012] Preferably, the cable parameters include: cable model, cable physical parameters, cable electrical parameters, cable splicing status, cable heat dissipation performance, and cable cost;

[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: historical environmental temperature, historical environmental wind speed, and historical environmental air pressure.

[0016] Preferably, step S2 comprises:

[0017] 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;

[0018] 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;

[0019] 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.

[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 heating curve of the i-th cable; k i1 is the maximum slope of the test heating curve of the i-th cable; k i2 is the maximum slope of the historical heating curve of the ith cable under the actual required cable power; h i is the thermal conductivity between the ith cable surface and the external environment; c i is the thermal conductivity of the ith cable; ti0 is the unit temperature; P is the maximum value of the air pressure collected in the historical environment of the actual construction location; P1 is the minimum value of the air pressure collected in the historical environment of the actual construction location; P0 is the average value of the air pressure collected in the historical environment of 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; ε i is the thermal resistance of the ith cable; ε i0 is the unit thermal resistance; ln is the natural logarithm, e is the natural constant; t i is the average value of the temperature collected in the historical environment of the actual construction location; t i1 is the maximum value of the temperature collected in the historical environment of the actual construction location; the value of π is 3.14.

[0023] Preferably, it also includes:

[0024] Step S24: determining an actual wind force assessment value W based on historical environmental parameters of the actual construction geographical location;

[0025] 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;

[0026] 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;

[0027] 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.

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

[0029]

[0030] W is the actual wind force assessment value; lg is the logarithm with base 10; is the average value of the historical ambient wind speed collected at the actual construction location; ρ is the actual ambient air density at the actual construction location; N1 is the value of the historical ambient wind speed collected at the actual construction location that is greater than or equal to N2 is the number of times the historical ambient wind speed 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.

[0031] Preferably, the theoretical vibration reliability of the available cables is preliminarily selected based on the following calculation formula:

[0032]

[0033] H s The theoretical vibration reliability of the available cable for the sth preliminary selection; d s The radius of the available cable is selected for the sth preliminary selection; E s The elastic modulus of the available cable for the sth preliminary selection; F s The cable tension not affected by wind force under the target condition for the sth preliminary selection of available cables; D s The bending stiffness of the available cable is selected for the sth preliminary selection; z is the unit length; r s is the average amplitude under the target condition for the sth preliminary selection of available cables; θ s The average vibration frequency under target conditions for the sth preliminary selection of available cables; r s2 is the maximum amplitude of the target condition for the sth preliminary selection of available cables; M is Corresponding demand value; V s The surface area of ​​the windward side for the target condition of the sth preliminary selection of available cables; L s is the maximum hanging length of the cable under the actual construction geographical location of the sth initially selected available cable under the cable laying state; (L s , r s )′ is the combination of L s 、r s The obtained cable stability correction factor; g is the acceleration due to gravity.

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

[0035] A database building module, used to build a cable database;

[0036] Input module, used to input construction scene parameters actually required;

[0037] An acquisition module is used to obtain historical environmental parameters of the actual construction geographical location;

[0038] 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;

[0039] A calculation module, used for calculating corresponding costs according to feasible combinations of available cables selected by a user;

[0040] 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.

[0041] Compared with the prior art, the present invention has the following beneficial effects: based on the actual construction scene information, the historical environmental parameters of the actual construction geographical location, and the cable length requirements, the cable database is queried to obtain the matching available cables and their cable parameters, thereby ensuring the reliable selection of available cables;

[0042] The corresponding cost is calculated according to the feasible combination of available cables selected by the user; the display module displays the cost and related construction method corresponding to the feasible combination of available cables selected by the user, so that the user can determine the appropriate feasible combination of available cables according to the cost and related construction method.

[0043] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF 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 and do not constitute a limitation of the present invention. In the accompanying drawings:

[0045] Figure 1 is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present invention are described below in conjunction with 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, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory 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 solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0049] The present invention provides the following embodiments

[0050] Embodiment 1, the embodiment of the present invention provides a cable auxiliary selection method, such as Figure 1 As shown, including:

[0051] Step S1: construct a cable database, which contains standard construction scenario information and standard cable parameters;

[0052] 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;

[0053] Step S3: Determine feasible combinations of available cables according to the cable length requirements and push the recommended results;

[0054] 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.

[0055] Preferably, the actual construction scene information includes: actual construction scene type, actual construction geographical location, actual laying scene, and actual construction scene parameter requirements;

[0056] The actual construction scenario parameter requirements include the actual required cable parameters, and the construction scenario types include: land, sea, and land + sea.

[0057] Preferably, the cable parameters include: cable model, cable physical parameters, cable electrical parameters, cable splicing status, cable heat dissipation performance, and cable cost;

[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: historical environmental temperature, historical environmental wind speed, and historical environmental air pressure.

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

[0062] A database building module, used to build a cable database;

[0063] Input module, used to input construction scene parameters actually required;

[0064] An acquisition module is used to obtain historical environmental parameters of the actual construction geographical location;

[0065] 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;

[0066] A calculation module, used for calculating corresponding costs according to feasible combinations of available cables selected by a user;

[0067] 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.

[0068] The present invention can also adopt the following scheme: according to the selected cable model, its related parameters, splicing status, splicing options are displayed, and based on the selection of splicing options, the construction scene corresponding to the splicing cable model, splicing method and other information are displayed. Based on the model and quantity of the selected splicing cable, the required pipe diameter, loss, cost and other information are calculated and displayed.

[0069] The beneficial effects of the above technical solution are: based on the actual construction scene information, the historical environmental parameters of the actual construction geographical location, and the cable length requirements, the cable database is queried to obtain the matching available cables and their cable parameters, thereby ensuring the reliable selection of available cables;

[0070] The corresponding cost is calculated according to the feasible combination of available cables selected by the user; the display module displays the cost and related construction method corresponding to the feasible combination of available cables selected by the user, so that the user can determine the appropriate feasible combination of available cables according to the cost and related construction method.

[0071] The present invention solves the problem raised in the background technology: 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 scene information of actual needs and the historical environmental parameters of the actual construction geographical location, which affects the reliability of cable selection.

[0072] Embodiment 2, based on embodiment 1, step S2 comprises:

[0073] 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;

[0074] 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 at the actually required cable power and performing heating value detection under a test environment (the test environment is matched based on the actual historical environment parameters of the laying site, and the average value of the actual historical environment of the laying site can be selected);

[0075] 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 the preliminarily selected available cable. When the wind speed in the historical environmental parameters of the required cable is small, the available cable can be preliminarily selected as the available cable.

[0076] Preferably, the theoretical heat dissipation reliability of each cable is calculated 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 heating curve of the i-th cable; k i1 is the maximum slope of the test heating curve of the i-th cable; k i2 is the maximum slope of the historical heating curve of the ith cable under the actual required cable power; h i is the thermal conductivity between the ith cable surface and the external environment; c i is the thermal conductivity of the ith cable; t i0 is the unit temperature; P is the maximum value of the air pressure collected in the historical environment of the actual construction location; P1 is the minimum value of the air pressure collected in the historical environment of the actual construction location; P0 is the average value of the air pressure collected in the historical environment of 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; ε i is the thermal resistance of the ith cable; ε i0 is the unit thermal resistance; ln is the natural logarithm, e is the natural constant; t i is the average value of the temperature collected in the historical environment of the actual construction location; t i1 is the maximum value of the temperature collected in the historical environment of the actual construction location; the value of π is 3.14.

[0079] The beneficial effects of the above technical solution are:

[0080] First, based on the actual physical parameters of the cable, the actual electrical parameters of the cable, the actual construction scene type, and the actual laying scene, the cable database is matched to obtain the model of the first cable, so as to realize the one-time selection of the cable;

[0081] 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 the initially selected available cable, so as to realize the secondary selection of the cable, ensure that the cable with reliable heat dissipation is selected to meet the heat dissipation requirements of the actual construction geographical location;

[0082] And based on the historical environmental parameters of the actual construction geographical location and the tested heating curve of the first cable (matching the historical environmental state of the actual construction geographical location) and the historical heating curve of the first cable, the theoretical heat dissipation reliability of each first cable is calculated, and the calculation is more reliable.

[0083] Embodiment 3, based on Embodiment 1 or 2, further comprises:

[0084] Step S24: determining an actual wind force assessment value W based on historical environmental parameters of the actual construction geographical location;

[0085] 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;

[0086] 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;

[0087] 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.

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

[0089]

[0090] W is the actual wind force assessment value; lg is the logarithm with base 10; is the average value of the historical ambient wind speed collected at the actual construction location; ρ is the actual ambient air density at the actual construction location; N1 is the value of the historical ambient wind speed collected at the actual construction location that is greater than or equal to N2 is the number of times the historical ambient wind speed 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.

[0091] Preferably, the theoretical vibration reliability of the available cables is preliminarily selected based on the following calculation formula:

[0092]

[0093] H s The theoretical vibration reliability of the available cable for the sth preliminary selection; d s The radius of the available cable is selected for the sth preliminary selection; E s The elastic modulus of the available cable for the sth preliminary selection; F s The cable tension not affected by wind force under the target condition for the sth preliminary selection of available cables; D s The bending stiffness of the available cable is selected for the sth preliminary selection; z is the unit length; r s is the average amplitude under the target condition for the sth preliminary selection of available cables; θ s The average vibration frequency under target conditions for the sth preliminary selection of available cables; r s2 is the maximum amplitude of the target condition for the sth preliminary selection of available cables; M is Corresponding demand value; V s The surface area of ​​the windward side for the target condition of the sth preliminary selection of available cables; L s is the maximum hanging length of the cable under the actual construction geographical location of the sth initially selected available cable under the cable laying state; (L s , r s )′ is the combination of L s 、r s The cable stability correction factor obtained (based on L s 、r s , the table corresponding to the cable stability correction factor or L s 、r s The obtained cable stability correction coefficient is obtained by function); g is the gravitational acceleration.

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

[0095] When the wind speed at the actual construction location is usually not low, it is necessary to conduct a vibration status assessment on the cables that can be initially selected;

[0096] Specifically: determine the actual wind force assessment value W based on the historical environmental parameters of the actual construction geographical location, and then determine the historical vibration parameters under the target conditions of the preliminary selection of available cables (the historical laying state of the preliminary selected available cables is the same as the cable laying state of the preliminary selected available cables applied to the actual construction geographical location, and the historical environmental wind force assessment value of the preliminary selected available cables is within the preset range of the actual wind force assessment value); ensure that the historical vibration parameters of the selected preliminary selected available cables are reliable, and then comprehensively evaluate the possible vibration stress state of the preliminary selected available cables applied to the actual construction geographical location based on the historical vibration parameters of the selected preliminary selected available cables and the material parameters of the selected preliminary selected available cables. The theoretical vibration reliability of the initially selected available cables is obtained to ensure that the available cables whose vibration conditions are consistent with the wind conditions at the actual construction location are selected, thereby ensuring the reliable use of the available cables at the actual construction 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 equivalents, 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.

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: 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.

6. A cable auxiliary selection method according to claim 5, characterized in that: The theoretical heat dissipation reliability of each cable is calculated based on the following formula; E i is the theoretical heat dissipation reliability of the i-th cable; Q i is the maximum value of the test heating curve of the i-th cable; k i1 is the maximum slope of the test heating curve of the i-th cable; k i2 is the maximum slope of the historical heating curve of the ith cable under the actual required cable power; h i is the thermal conductivity between the ith cable surface and the external environment; c i is the thermal conductivity of the ith cable; t i0 is the unit temperature; P is the maximum value of the air pressure collected in the historical environment of the actual construction location; P1 is the minimum value of the air pressure collected in the historical environment of the actual construction location; P0 is the average value of the air pressure collected in the historical environment of the actual construction location; θ1 is the average value of the wind speed collected in the historical environment of the actual construction location; θ2 is the minimum value of the wind speed collected in the historical environment of the actual construction location; θ0 is the unit wind speed; ε i is the thermal resistance of the ith cable; ε i0 is the unit thermal resistance; ln is the natural logarithm, e is the natural constant; t i is the average value of the temperature collected in the historical environment of the actual construction location; t i1 is the maximum value of the temperature collected in the historical environment of the actual construction location; the value of π is 3.

14.

7. A cable auxiliary selection method according to claim 5, 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.

8. A cable auxiliary selection method according to claim 7, characterized in that: The actual wind force assessment value is calculated based on the following formula: W is the actual wind force assessment value; lg is the logarithm with base 10; θ1 is the average value of the collected values ​​of the historical ambient wind speed of the actual construction geographical location; ρ is the actual ambient air density of the actual construction geographical location; N1 is the number of times the collected values ​​of the historical ambient wind speed of the actual construction geographical location is greater than or equal to θ1; N2 is the number of times the collected values ​​of the historical ambient wind speed of the actual construction geographical location is less than θ1; θ2 is the maximum value of the collected values ​​of the historical ambient wind speed of the actual construction geographical location.

9. A cable auxiliary selection method according to claim 7, characterized in that: The theoretical vibration reliability of the available cables is preliminarily selected based on the following calculation formula: H s The theoretical vibration reliability of the available cable for the sth preliminary selection; d s The radius of the available cable is selected for the sth preliminary selection; E s The elastic modulus of the available cable for the sth preliminary selection; F s The cable tension not affected by wind force under the target condition for the sth preliminary selection of available cables; D s The bending stiffness of the available cable is selected for the sth preliminary selection; z is the unit length; r s The average amplitude under the target condition for the sth preliminary selection of available cables; θ s The average vibration frequency under target conditions for the sth preliminary selection of available cables; r ss The maximum amplitude of the target condition for the sth preliminary selection of available cables; M is Corresponding demand value; V s The surface area of ​​the windward side for the target condition of the sth preliminary selection of available cables; L s is the maximum hanging length of the cable under the actual construction geographical location of the sth initially selected available cable under the cable laying state; (L s , r s )′ is the combination of L s 、r s The obtained cable stability correction factor; g is the acceleration due to gravity.

10. A cable auxiliary selection device, applied to a cable auxiliary selection method as claimed in any one of claims 1 to 9, 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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