Typical cost revision method and device of power transmission project, computer equipment and storage medium

Abstract

The invention relates to a typical cost revision method and device of a power transmission project, computer equipment and a storage medium. The method comprises the following steps: acquiring construction cost influence data corresponding to different construction cost influence factors and construction cost data under construction cost types to which the different construction cost influence factors belong in a latest revision time period of a target power transmission project; and according to the comprehensive cost revision rate of the target power transmission project, revising the cost data in the latest revision time period. By adopting the method, in the process of determining the comprehensive cost revision rate of the target power transmission project, the basic revision rate of the target power transmission project is introduced, and the accuracy of the determined comprehensive cost revision rate can be improved. And according to the comprehensive cost revision rate of the target power transmission project, revising the cost data in the latest revision time period, thereby improving the accuracy of the revised typical cost, and enabling the revised typical cost to reflect the actual cost condition of the target power transmission project.

Description

Technical Field

[0001] The present application relates to the technical field of engineering cost, and in particular to a typical cost revision method, device, computer equipment and storage medium for power transmission engineering. Background Art

[0002] In the current power engineering project cost management, the cost assessment of transmission engineering is a complex and important link. Accurate and objective assessment of the cost of transmission engineering is helpful to improve the rationality of transmission engineering resource allocation.

[0003] At present, the cost of current power transmission projects is often evaluated based on the typical cost of power transmission projects. However, the existing revision method of the typical cost of power transmission projects ignores the characteristics of the dynamic change of the influencing factors of the typical cost over time, so that the typical cost of power transmission projects cannot accurately reflect the actual cost of power transmission projects. Summary of the invention

[0004] Based on this, it is necessary to provide a typical cost revision method, device, computer equipment and storage medium for power transmission projects in order to improve the accuracy of the typical cost of power transmission projects in response to the above technical problems.

[0005] In a first aspect, the present application provides a typical cost revision method for a power transmission project, comprising:

[0006] Obtain the cost impact data corresponding to different cost impact factors of the target transmission project in the latest revision period, as well as the cost data under the cost type to which different cost impact factors belong;

[0007] According to the comprehensive cost revision rate of the target transmission project, revise the cost data in the latest revision period;

[0008] Among them, the comprehensive cost revision rate of the target transmission project is determined in the following way:

[0009] Determine the reference cost revision rate for the target transmission project based on the cost data under the cost category to which the cost influencing factors belong and the change data of the cost influencing factors corresponding to the cost influencing data during the latest revision period;

[0010] Determine the base cost revision rate for the target transmission project;

[0011] A comprehensive cost revision rate is determined based on the basic cost revision rate and a reference cost revision rate corresponding to at least one cost influencing factor.

[0012] In one embodiment, determining a basic cost revision rate for a target power transmission project includes: based on a correspondence between different preset transmission voltages and each first cost revision rate, using the first cost revision rate corresponding to the target transmission voltage corresponding to the target power transmission project as the basic cost revision rate for the target power transmission project.

[0013] In one of the embodiments, a reference cost revision rate for a target power transmission project is determined based on cost data under a cost category to which the cost influencing factors belong, and change data of the cost influencing data corresponding to the cost influencing factors in the latest revision period, including: taking the cost data under the cost category to which the cost influencing factors belong, to the ratio of the sum of the cost data corresponding to at least one cost influencing factor, as the cost expense ratio corresponding to the cost influencing factor; taking the change data of the cost influencing data corresponding to the cost influencing factors in the latest revision period, to the ratio of the cost influencing data corresponding to the same cost influencing factor in the previous revision period, as the influence data change rate; taking the product of the cost expense ratio and the influence data change rate as the reference cost revision rate corresponding to the cost influencing factor.

[0014] In one of the embodiments, a comprehensive cost revision rate is determined based on a basic cost revision rate and a reference cost revision rate corresponding to at least one cost influencing factor, including: taking the average of the reference cost revision rates corresponding to the cost influencing factors belonging to the same cost category as the second cost revision rate corresponding to the cost category; taking the sum of the second cost revision rates corresponding to different cost categories as the third cost revision rate; and generating a comprehensive cost revision rate including the basic cost revision rate and the third cost revision rate.

[0015] In one of the embodiments, cost impact data corresponding to different cost impact factors of a target power transmission project in the latest revision period are obtained, including: obtaining at least one predicted impact data of the target power transmission project in the historical revision period; wherein the predicted impact data includes historical impact data corresponding to different cost impact factors; based on at least one pre-trained cost prediction model, cost predictions are performed on the predicted impact data to obtain cost prediction results corresponding to the predicted impact data; for any cost prediction model, the historical impact data corresponding to the predicted impact data are used as independent variables, and the corresponding cost prediction results are used as dependent variables for linear fitting to obtain cost impact weights corresponding to different cost impact factors under the cost prediction model; according to the cost impact weights of each cost impact factor under different cost prediction models, key impact factors are selected from different cost impact factors; and cost impact data corresponding to at least one key impact factor of the target power transmission project in the latest revision period are obtained.

[0016] In one of the embodiments, key influencing factors are selected from different cost influencing factors according to the cost impact weights of each cost influencing factor under different cost prediction models, including: selecting initial influencing factors under the cost prediction model from different cost influencing factors according to the cost impact weights of each cost influencing factor under each cost prediction model; and determining key influencing factors according to the intersection of the initial influencing factors under each cost prediction model.

[0017] In one of the embodiments, based on at least one pre-trained cost prediction model, cost prediction is performed on the prediction impact data respectively to obtain cost prediction results corresponding to the prediction impact data, including: generating prediction derivative data corresponding to the prediction impact data; based on at least one pre-trained cost prediction model, cost prediction is performed on the prediction derivative data respectively to obtain cost prediction results corresponding to the prediction impact data.

[0018] Among them, the cost prediction model is trained based on the following method: obtaining sample impact data corresponding to different cost impact factors of the target transmission project during the sample revision period, and the cost data labels corresponding to the sample impact data; adjusting the impact value of any sample impact data under at least one cost impact factor to generate sample derivative data of the sample impact data; using the cost data label of the sample impact data corresponding to the sample derivative data as the cost data label of the sample derivative data; and training the pre-constructed cost prediction model according to the sample derivative data and the cost data label of the sample derivative data.

[0019] In a second aspect, the present application also provides a typical cost revision device for a power transmission project, comprising:

[0020] An acquisition module is used to acquire the cost impact data corresponding to different cost impact factors of the target power transmission project in the latest revision period, as well as the cost data under the cost type to which the different cost impact factors belong;

[0021] The revision module is used to revise various cost data in the latest revision period according to the comprehensive cost revision rate of the target transmission project.

[0022] In a third aspect, the present application further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0023] Obtain the cost impact data corresponding to different cost impact factors of the target transmission project in the latest revision period, as well as the cost data under the cost type to which different cost impact factors belong;

[0024] According to the comprehensive cost revision rate of the target transmission project, revise the cost data in the latest revision period;

[0025] Among them, the comprehensive cost revision rate of the target transmission project is determined in the following way:

[0026] Determine the reference cost revision rate for the target transmission project based on the cost data under the cost category to which the cost influencing factors belong and the change data of the cost influencing factors corresponding to the cost influencing data during the latest revision period;

[0027] Determine the base cost revision rate for the target transmission project;

[0028] A comprehensive cost revision rate is determined based on the basic cost revision rate and a reference cost revision rate corresponding to at least one cost influencing factor.

[0029] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the following steps are implemented:

[0030] Obtain the cost impact data corresponding to different cost impact factors of the target transmission project in the latest revision period, as well as the cost data under the cost type to which different cost impact factors belong;

[0031] According to the comprehensive cost revision rate of the target transmission project, revise the cost data in the latest revision period;

[0032] Among them, the comprehensive cost revision rate of the target transmission project is determined in the following way:

[0033] Determine the reference cost revision rate for the target transmission project based on the cost data under the cost category to which the cost influencing factors belong and the change data of the cost influencing factors corresponding to the cost influencing data during the latest revision period;

[0034] Determine the base cost revision rate for the target transmission project;

[0035] A comprehensive cost revision rate is determined based on the basic cost revision rate and a reference cost revision rate corresponding to at least one cost influencing factor.

[0036] In a fifth aspect, the present application further provides a computer program product, including a computer program, which implements the following steps when executed by a processor:

[0037] Obtain the cost impact data corresponding to different cost impact factors of the target transmission project in the latest revision period, as well as the cost data under the cost type to which different cost impact factors belong;

[0038] According to the comprehensive cost revision rate of the target transmission project, revise the cost data in the latest revision period;

[0039] Among them, the comprehensive cost revision rate of the target transmission project is determined in the following way:

[0040] Determine the reference cost revision rate for the target transmission project based on the cost data under the cost category to which the cost influencing factors belong and the change data of the cost influencing factors corresponding to the cost influencing data during the latest revision period;

[0041] Determine the base cost revision rate for the target transmission project;

[0042] A comprehensive cost revision rate is determined based on the basic cost revision rate and a reference cost revision rate corresponding to at least one cost influencing factor.

[0043] The typical cost revision method, device, computer equipment, storage medium and product of the above-mentioned power transmission project introduces the basic revision rate of the target power transmission project in the process of determining the comprehensive cost revision rate of the target power transmission project, which can improve the accuracy of the determined comprehensive cost revision rate. Then, according to the comprehensive cost revision rate of the target power transmission project, the cost data in the latest revision period are revised, thereby improving the accuracy of the revised typical cost, so that the revised typical cost can reflect the actual cost situation of the target power transmission project. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A schematic diagram of a typical cost revision method for a power transmission project in one embodiment;

[0046] Figure 2 It is a flowchart of the steps of determining the basic cost revision rate in one embodiment;

[0047] Figure 3 A schematic flow chart of a step of determining a reference cost revision rate in one embodiment;

[0048] Figure 4 A flowchart of a step of determining a comprehensive cost revision rate in one embodiment;

[0049] Figure 5 A schematic diagram of a flow chart of steps for obtaining cost impact data in one embodiment;

[0050] Figure 6 A structural block diagram of a typical cost revision in an embodiment;

[0051] Figure 7FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0052] 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.

[0053] In one embodiment, Figure 1 As shown, a typical cost revision method for a power transmission project is provided. This embodiment uses the method applied to a terminal as an example for illustration. It can be understood that the method can also be applied to a server, and can also be applied to a system including a terminal and a server, and is implemented through the interaction between the terminal and the server. In this embodiment, the method includes the following steps:

[0054] S110, obtaining cost impact data corresponding to different cost impact factors of the target power transmission project in the latest revision period, and cost data under the cost type to which the different cost impact factors belong.

[0055] Optionally, the target transmission project can be understood as a transmission project for which the typical cost needs to be revised. It should be noted that the typical cost can be understood as a reference cost of the actual cost of the target transmission project, that is, the actual cost of the target transmission project can be evaluated based on the typical cost of the target transmission project. In each revision period, the typical cost needs to be revised once, and the latest revision period can be understood as a revision period closest to the current revision period. Among them, the cost influencing factors can be understood as factors that may affect the typical cost of the target transmission project. It should be emphasized that the cost influencing factors can be either direct influencing factors or indirect influencing factors. Optionally, the direct influencing factors can be understood as cost influencing factors that can directly affect the typical cost, such as raw material prices. Indirect influencing factors can be understood as cost influencing factors that may affect the typical cost by affecting the direct influencing factors. For example, changes in PPI (Producer Price Index) may affect the price of raw materials and thus affect the typical cost. Cost influencing data can be understood as data used to represent cost influencing factors. For example, if the PPI is 2.9, the cost impact data corresponding to the cost impact factor PPI is 2.9.

[0056] Furthermore, the cost category can be understood as the cost corresponding to each sub-project of the target power transmission project. For example, the cost category may include at least one of equipment purchase costs, engineering design fees, and engineering management fees. Optionally, the equipment purchase cost can be understood as the cost required for purchasing and disposing of raw materials or equipment; the engineering design fee can be understood as the cost required for engineering planning and design; the engineering management fee can be understood as the cost required for managing the target power transmission project. Furthermore, the cost data can be understood as the data used to represent each cost category. For example, if the equipment purchase cost in the typical cost is one million yuan, the cost data corresponding to the cost category equipment purchase cost is one million yuan. Optionally, the typical cost may include at least one cost category and a total cost. Among them, the sum of the cost data corresponding to all cost types within the same revision period can be used as the cost data corresponding to the total cost in the typical cost.

[0057] S120, revising various cost data in the latest revision period according to the comprehensive cost revision rate of the target transmission project.

[0058] Among them, the comprehensive cost revision rate can be understood as the revision rate of the typical cost of the target transmission project based on all cost influencing factors.

[0059] Optionally, the comprehensive cost revision rate of the target transmission project can be determined in the following manner: determine the reference cost revision rate under the target transmission project based on the cost data under the cost category to which the cost influencing factors belong, and the change data of the cost influencing data corresponding to the cost influencing factors during the latest revision period; determine the basic cost revision rate of the target transmission project; determine the comprehensive cost revision rate based on the basic cost revision rate and the reference cost revision rate corresponding to at least one cost influencing factor.

[0060] Optionally, there is a mapping relationship between the cost influencing factors and the cost categories, and the mapping relationship can be understood as: when the cost impact data corresponding to the cost influencing factors changes, it will affect the cost data corresponding to the cost category under the mapping relationship. It should be noted that the mapping relationship can be set by technical personnel according to needs or experience, or determined through a large number of experiments, and this application does not impose any restrictions on this. Among them, a cost influencing factor is uniquely mapped to a cost category, that is, a cost factor belongs to a cost category. For example, the price of raw materials belongs to equipment procurement costs. Further, different cost factors may belong to the same cost category. For example, the price of raw materials and the raw material disposal fee both belong to equipment purchase costs. Optionally, the change data can be understood as the difference between the cost impact data corresponding to the cost influencing factors in the latest revision period and the cost impact data corresponding to the same cost influencing factors in the previous revision period of the latest revision period. Among them, the reference cost revision rate can be understood as the revision rate of the historical typical cost obtained based on a single cost influencing factor. The basic cost revision rate can be understood as the revision rate of the typical cost determined according to the key technical parameters of the target power transmission project. Among them, the key technical parameters can be understood as the technical parameters representing the power transmission capacity of the target power transmission project. Exemplarily, the key technical parameters may include the power transmission voltage of the target power transmission project, etc.

[0061] Furthermore, in order to comprehensively consider the impact of both cost influencing factors and key technical parameters on the typical cost of the target transmission project, the comprehensive cost revision rate can be determined based on the basic cost revision rate and the reference cost revision rate corresponding to at least one cost influencing factor.

[0062] S120, revising various cost data in the latest revision period according to the comprehensive cost revision rate of the target transmission project.

[0063] It can be understood that since the comprehensive cost revision rate is determined based on the basic cost revision rate and the reference cost revision rate corresponding to at least one cost influencing factor, the cost data in the latest revision period shall be revised according to the comprehensive cost revision rate of the target transmission project, that is, the cost data in the latest revision period shall be revised according to the basic cost revision rate and the reference cost revision rates.

[0064] In this embodiment, in the process of determining the comprehensive cost revision rate of the target power transmission project, the basic revision rate of the target power transmission project is introduced, which can improve the accuracy of the determined comprehensive cost revision rate. Then, according to the comprehensive cost revision rate of the target power transmission project, the cost data in the latest revision period are revised, thereby improving the accuracy of the revised typical cost, so that the revised typical cost can reflect the actual cost of the target power transmission project.

[0065] Based on the technical solutions of the above-mentioned embodiments, the present application also provides an optional embodiment, in which the steps for determining the basic cost revision rate are refined.

[0066] See also Figure 2 The steps for determining the basic cost revision rate shown include:

[0067] S210, based on the correspondence between different preset transmission voltages and the first cost revision rates, the first cost revision rate corresponding to the target transmission voltage corresponding to the target transmission project is used as the basic cost revision rate of the target transmission project.

[0068] Among them, the first cost revision rate can be understood as the cost revision rate corresponding to different transmission voltages. It should be noted that the correspondence between different transmission voltages and each first cost revision rate can be set by technical personnel according to needs or experience, or determined through a large number of experiments, and this application does not impose any restrictions on this. Optionally, the target transmission voltage can be understood as the transmission voltage of the target transmission project. In order to ensure the transmission stability of the transmission project, the transmission voltage of the same transmission project generally does not change with the change of the revision period, that is, when the typical cost of the transmission project is revised in any revision period, the influence of the transmission voltage on the typical cost continues to exist. Therefore, the first cost revision rate corresponding to the target transmission voltage of the target transmission project can be used as the basic cost revision rate of the target transmission project.

[0069] In this embodiment, by using the first cost revision rate corresponding to the target transmission voltage of the target transmission project as the basic cost revision rate of the target transmission project, the basic cost revision rate can reflect the impact of the transmission voltage on the typical cost of the target transmission project, and provide a data basis with more dimensions for determining the comprehensive cost revision rate, thereby improving the accuracy of the comprehensive cost revision rate.

[0070] Based on the technical solutions of the above-mentioned embodiments, the present application also provides an optional embodiment, in which the steps for determining the reference cost revision rate are refined.

[0071] See also Figure 3 The steps for determining the reference cost revision rate shown include:

[0072] S310: taking the proportion of the cost data under the cost category to which the cost influencing factor belongs to the sum of the cost data corresponding to at least one cost influencing factor as the proportion of the cost expense corresponding to the cost influencing factor.

[0073] Optionally, the sum of the cost data corresponding to at least one cost influencing factor can be understood as the total cost of the target transmission project in the latest revision period. Further, the cost ratio can be understood as the ratio of the cost data under the cost type to which the cost influencing factor belongs in the total cost.

[0074] For example, the formula , obtain the proportion of construction cost corresponding to the factors affecting construction cost .in, Indicates the serial number of the factors affecting the cost. Indicates the serial number is The cost data under the cost category to which the cost influencing factors belong, Represents the total cost of the target transmission project during the latest revision period.

[0075] S320, taking the change data of the cost impact data corresponding to the cost impact factor in the latest revision period and the proportion of the cost impact data corresponding to the same cost impact factor in the previous revision period as the impact data change rate.

[0076] It can be understood that the rate of change of the influencing data can be understood as the rate of change of the cost influencing data from the previous revision period to the latest revision period.

[0077] For example, according to the formula , get the impact data change rate .in, Indicates the latest revision period, the serial number is The cost influencing factors correspond to the change data of the cost influencing data, Indicates that in the last revision period before the latest revision period, the serial number in the latest revision period is The cost impact data of the cost influencing factors corresponding to the cost influencing factors.

[0078] S330, taking the product of the proportion of the construction cost and the rate of change of the influencing data as the reference cost revision rate corresponding to the cost influencing factor.

[0079] For example, according to the formula , get the serial number in the latest revision period Reference cost revision rate corresponding to the cost influencing factors . and Substituting the calculation formula into the above formula, we can get .

[0080] In this embodiment, in the process of determining the reference cost revision rate corresponding to the cost influencing factors, the cost cost ratio and the change rate of the cost influencing data are introduced. Among them, the cost data under the cost category to which the cost influencing factors belong, the ratio of the sum of the cost data corresponding to at least one cost influencing factor, is used as the cost cost ratio corresponding to the cost influencing factor, which reflects the influence ratio of the cost type to which the cost influencing factor belongs in the typical cost of the target power transmission project in the latest revision period; the change data of the cost influencing data corresponding to the cost influencing factors in the latest revision period, the ratio of the cost influencing data corresponding to the same cost influencing factor in the previous revision period of the latest revision period, is used as the influence data change rate, which reflects the change of the cost influencing data. Therefore, the above technical scheme can determine the reference cost revision rate corresponding to the cost influencing factors on the basis of fully considering the change of the cost influencing data and the influence ratio of the cost type to which the cost influencing factors belong in the typical cost, so that the reference cost revision rate can objectively and accurately reflect the change of a single cost influencing factor and its influence on the typical cost of the target power transmission project.

[0081] Based on the technical solutions of the above-mentioned embodiments, the present application also provides an optional embodiment, in which the steps for determining the comprehensive cost revision rate are refined.

[0082] See also Figure 4 The steps for determining the comprehensive cost revision rate shown include:

[0083] S410: taking the average of the reference cost revision rates corresponding to the cost influencing factors belonging to the same cost category as the second cost revision rate corresponding to the cost category.

[0084] Optionally, the second cost revision rate can be understood as the impact of changes in cost impact data corresponding to all cost impact factors of the same cost type for the target transmission project in the latest revision period on the typical cost of the target transmission project.

[0085] It is understandable that, as described above, different cost influencing factors may belong to the same cost category. When there is only one cost influencing factor corresponding to a cost category, the reference cost revision rate corresponding to the cost influencing factor can represent the impact of the cost impact data change corresponding to the cost influencing factor belonging to the cost type on the typical cost of the target power transmission project. However, if there are multiple cost influencing factors belonging to the same cost category, although the proportion of cost expenses corresponding to the same cost type is certain, the changes in cost impact data corresponding to different cost influencing factors are different. Therefore, relying solely on the reference cost revision rate of one of the cost influencing factors may not be able to relatively accurately reflect the impact of the cost impact data changes corresponding to all cost influencing factors belonging to the same cost type on the typical cost of the target power transmission project. Therefore, the average of the reference cost revision rates corresponding to the cost influencing factors belonging to the same cost category can be used as the second cost revision rate corresponding to the cost category.

[0086] S420, taking the sum of the second cost revision rates corresponding to different cost categories as the third cost revision rate.

[0087] Among them, the sum of the second cost revision rates corresponding to different cost categories can be understood as the overall impact of the changes in cost impact data corresponding to all cost influencing factors of the target transmission project during the latest revision period on the typical cost of the target transmission project.

[0088] S430, generating a comprehensive cost revision rate including a basic cost revision rate and a third cost revision rate.

[0089] For example, according to the formula , determine the comprehensive cost revision rate of the target transmission project .in, Indicates the third cost revision rate of the target transmission project, It represents the base cost revision rate of the target transmission project.

[0090] Furthermore, according to the formula , determine the revised typical cost of the target transmission project .in, Represents the typical cost of the target transmission project under the latest revision period.

[0091] In this embodiment, the average of the reference revision rates corresponding to the cost influencing factors under the same cost category is used as the second cost revision rate corresponding to the cost category; the sum of the second cost revision rates corresponding to different cost categories is used as the third cost revision rate of the target power transmission project; a comprehensive cost revision rate including the basic cost revision rate and the third cost revision rate is generated, so that the comprehensive cost revision rate can reflect the overall impact of the cost impact data changes corresponding to all cost influencing factors of the target power transmission project during the latest revision period on the typical cost of the target power transmission project. It can also reflect the impact of the transmission voltage of the target power transmission project on the typical cost of the target power transmission project, thereby improving the accuracy of the determined comprehensive cost revision rate.

[0092] Based on the technical solutions of the above embodiments, the present application also provides an optional embodiment, in which the steps for obtaining the cost influencing data are refined.

[0093] See also Figure 5 The steps for obtaining the cost impact data shown include:

[0094] S510, obtaining at least one predicted impact data of a target power transmission project in a historical revision period.

[0095] The predicted cost data may be understood as cost impact data used to predict the typical cost of the target power transmission project. Optionally, the predicted impact data may include historical impact data corresponding to different cost impact factors. The historical impact data may be understood as cost impact data corresponding to the cost impact factors during the historical revision period.

[0096] S520, based on at least one pre-trained cost prediction model, respectively perform cost prediction on the prediction impact data to obtain cost prediction results corresponding to the prediction impact data.

[0097] In an optional embodiment, predicted derivative data corresponding to the predicted impact data may be generated; based on at least one pre-trained cost prediction model, cost prediction is performed on the predicted derivative data respectively to obtain cost prediction results corresponding to the predicted impact data.

[0098] Among them, the predicted derivative data can be understood as the derivative data obtained by adjusting at least one historical impact data in the same historical revision period. A set of predicted derivative data can be generated by adjusting each pair of historical impact data once. By inputting each set of predicted derivative data into any pre-trained cost prediction model, the cost prediction results corresponding to each set of derived cost data under the cost prediction model in the historical revision period can be obtained. Furthermore, the predicted derivative data in each historical period can be input into at least one cost prediction model respectively, so as to obtain the cost prediction results of each set of predicted derivative data under at least one cost model in different historical periods.

[0099] Exemplarily, any cost prediction model may be trained based on the following training methods:

[0100] Obtain sample impact data corresponding to different cost impact factors of the target transmission project during the sample revision period, as well as cost data labels corresponding to the sample impact data; adjust the impact value of any sample impact data under at least one cost impact factor to generate sample derivative data of the sample impact data; use the cost data label of the sample impact data corresponding to the sample derivative data as the cost data label of the sample derivative data; and train a pre-constructed cost prediction model based on the sample derivative data and the cost data label of the sample derivative data.

[0101] Among them, the sample revision period can be understood as the revision period in which the data for training the cost model is located. Further, the sample impact data can be understood as the cost impact data corresponding to each cost impact factor in the sample revision period. Optionally, the cost data label can be understood as the reference cost data used to evaluate the prediction accuracy of the cost prediction model during the training of the cost prediction model. Further, the impact value under the cost impact factor can be understood as the value of adjusting the sample impact data corresponding to the cost impact factor. Further, the sample derivative data can be understood as the derivative data obtained based on the adjustment of the sample impact data.

[0102] S530, for any cost prediction model, taking the historical impact data corresponding to the predicted impact data as an independent variable, taking the corresponding cost prediction result as a dependent variable for linear fitting, and obtaining the cost impact weights corresponding to different cost impact factors under the cost prediction model.

[0103] It should be noted that the cost forecasting model can only obtain the cost forecast results, but cannot reflect the forecasting process of each cost forecasting result, that is, it cannot reflect the changes in the cost impact data corresponding to each cost influencing factor during the forecasting process, and the degree of influence on the cost forecasting result. Therefore, the cost forecasting results can be fitted through a linear model to obtain the cost impact weight values ​​of different cost influencing factors in the historical revision period, and the weight values ​​can be used to reflect the degree of influence of different cost influencing factors on the cost forecasting results.

[0104] S540, selecting key influencing factors from different cost influencing factors according to the cost influencing weights of the cost influencing factors under different cost prediction models.

[0105] Among them, the key influencing factors can be understood as the changes in the corresponding cost influencing data, which are the cost influencing factors with a higher degree of influence on the cost forecast results.

[0106] In an optional embodiment, the initial influencing factors under the cost prediction model can be selected from different cost influencing factors according to the cost impact weights of each cost influencing factor under each cost prediction model; and the key influencing factors can be determined according to the intersection of the initial influencing factors under each cost prediction model.

[0107] Among them, the initial influencing factors can be understood as the cost influencing factors obtained through preliminary screening and having a higher degree of influence on the cost forecast results.

[0108] Optionally, for each group of forecast derivative data under each historical revision period, and each corresponding cost forecast result under any cost forecast model, a group of cost impact weights can be obtained. The cost impact factors can be ranked according to the group of cost impact weights. Exemplarily, the cost impact factors with higher cost impact weights can be ranked higher. Furthermore, a preset number of cost impact factors with higher rankings can be used as initial impact factors under the cost forecast model. If a certain cost impact factor is an initial impact factor under each cost forecast model, it can be further determined that the cost impact factor has a higher degree of influence on the cost impact result. Therefore, the intersection between the initial impact factors under each cost forecast model can be used as the key impact factor of the typical cost of the target power transmission project.

[0109] S550, obtaining cost impact data corresponding to at least one key impact factor of the target power transmission project in the latest revision period.

[0110] It is understandable that if the cost impact data corresponding to at least one cost impact factor of the target power transmission project in the latest revision period is obtained without screening the cost impact factors, it can also be used as the analysis data for the subsequent revision of the typical cost of the target power transmission project. However, there will be more non-critical influencing factors involved in the process of revising the historical typical cost, which not only increases the amount of data but also reduces the revision efficiency. Therefore, the key influencing factors can be screened out first, and then the reference cost revision rate corresponding to the key influencing factors can be determined directly based on the cost impact data corresponding to at least one key influencing factor of the target power transmission project in the latest revision period.

[0111] In this embodiment, in the process of determining the key influencing factors, based on at least one pre-trained cost prediction model, cost prediction is performed on the prediction influencing data respectively to obtain the cost prediction results corresponding to the prediction influencing data; the cost impact weights under different cost prediction models are obtained by linear fitting; and the key influencing factors are determined according to the cost impact weights. The above technical scheme can first preliminarily determine the cost influencing factors with a higher degree of influence on the cost prediction results in any cost prediction model, and then further determine the key influencing factors by combining the cost influencing factors with a higher degree of influence determined by each cost prediction model, thereby improving the accuracy of confirming the key influencing factors and reducing the amount of cost impact data, thereby improving the efficiency of subsequently determining the comprehensive cost revision rate.

[0112] 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.

[0113] Based on the same inventive concept, the embodiment of the present application also provides a typical cost revision device for implementing the typical cost revision method of the power transmission project 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 one or more typical cost revision device embodiments provided below can refer to the limitations of the typical cost revision method of the power transmission project above, and will not be repeated here.

[0114] In an exemplary embodiment, Figure 6As shown, a typical cost revision device is provided, including: an acquisition module 610 and a revision module 620, wherein:

[0115] The acquisition module 610 is used to acquire the cost impact data corresponding to different cost impact factors of the target power transmission project in the latest revision period, and the cost data under the cost type to which the different cost impact factors belong.

[0116] The revision module 620 is used to revise various cost data in the latest revision period according to the comprehensive cost revision rate of the target power transmission project.

[0117] In one embodiment, the acquisition module 610 includes: a first determination unit, used to determine a reference cost revision rate under the target power transmission project based on the cost data under the cost category to which the cost influencing factor belongs, and the change data of the cost influencing data corresponding to the cost influencing factor during the latest revision period; a second determination unit, used to determine the basic cost revision rate of the target power transmission project; and a third determination unit, used to determine the comprehensive cost revision rate based on the basic cost revision rate and the reference cost revision rate corresponding to at least one cost influencing factor.

[0118] In one embodiment, the second determination unit includes: a first determination subunit, which is used to use the first cost revision rate corresponding to the target transmission voltage corresponding to the target transmission project as the basic cost revision rate of the target transmission project based on the correspondence between different preset transmission voltages and each first cost revision rate.

[0119] In one embodiment, the first determination unit includes: a second determination sub-unit, which is used to take the proportion of the cost data under the cost category to which the cost influencing factor belongs to the sum of the cost data corresponding to at least one cost influencing factor as the cost expense proportion corresponding to the cost influencing factor; a third determination sub-unit, which is used to take the proportion of the cost influence data corresponding to the cost influencing factor in the latest revision period in the previous revision period as the influence data change rate; and a fourth determination sub-unit, which is used to take the product of the cost expense proportion and the influence data change rate as the reference cost revision rate corresponding to the cost influencing factor.

[0120] In one embodiment, the third determination unit includes: a fifth determination sub-unit, used to take the average of the reference cost revision rates corresponding to the cost influencing factors belonging to the same cost category as the second cost revision rate corresponding to the cost category; a sixth determination sub-unit, used to take the sum of the second cost revision rates corresponding to different cost categories as the third cost revision rate; and a first generation sub-unit, used to generate a comprehensive cost revision rate including a basic cost revision rate and a third cost revision rate.

[0121] In one embodiment, the acquisition module 610 also includes: a first acquisition unit, which is used to acquire at least one predicted impact data of the target power transmission project in the historical revision period; a first prediction unit, which is used to perform cost prediction on the predicted impact data based on at least one pre-trained cost prediction model, and obtain each cost prediction result corresponding to the predicted impact data; a first fitting unit, which is used to perform linear fitting on any cost prediction model, using the historical impact data corresponding to the predicted impact data as an independent variable and the corresponding cost prediction result as a dependent variable, to obtain the cost impact weights corresponding to different cost impact factors under the cost prediction model; a first selection unit, which is used to select key impact factors from different cost impact factors according to the cost impact weights of each cost impact factor under different cost prediction models; and a second acquisition unit, which is used to acquire the cost impact data corresponding to at least one key impact factor of the target power transmission project in the latest revision period.

[0122] In one embodiment, the first selection unit includes: a first selection sub-unit, used to select the initial influencing factors under the cost prediction model from different cost influencing factors according to the cost impact weights of each cost influencing factor under each cost prediction model; and a seventh determination sub-unit, used to determine the key influencing factors according to the intersection between the initial influencing factors under each cost prediction model.

[0123] In one of the embodiments, the first prediction unit includes: a second generation subunit, used to generate prediction derivative data corresponding to the prediction impact data; a first prediction subunit, used to perform cost prediction on the prediction derivative data based on at least one pre-trained cost prediction model, to obtain cost prediction results corresponding to the prediction impact data.

[0124] Each module in the above typical cost revision 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 the operations corresponding to each module.

[0125] In an exemplary embodiment, a computer device is provided, the internal structure of which can be shown as follows: Figure 7As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. 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 input / output interface of the computer device is used to exchange information between the processor and an external device. 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 implemented through WIFI, a mobile cellular network, near field communication (NFC) or other technologies. When the computer program is executed by the processor, a typical cost revision method for a power transmission project is implemented. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen 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 covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0126] Those skilled in the art will understand that Figure 7 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.

[0127] In an exemplary 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 following steps are implemented:

[0128] Obtain the cost impact data corresponding to different cost impact factors of the target transmission project in the latest revision period, as well as the cost data under the cost type to which different cost impact factors belong;

[0129] According to the comprehensive cost revision rate of the target transmission project, revise the cost data in the latest revision period;

[0130] Among them, the comprehensive cost revision rate of the target transmission project is determined in the following way:

[0131] Determine the reference cost revision rate for the target transmission project based on the cost data under the cost category to which the cost influencing factors belong and the change data of the cost influencing factors corresponding to the cost influencing data during the latest revision period;

[0132] Determine the base cost revision rate for the target transmission project;

[0133] A comprehensive cost revision rate is determined based on the basic cost revision rate and a reference cost revision rate corresponding to at least one cost influencing factor.

[0134] In one embodiment, when the processor executes the computer program, the following steps are also implemented: based on the correspondence between different preset transmission voltages and each first cost revision rate, the first cost revision rate corresponding to the target transmission voltage corresponding to the target transmission project is used as the basic cost revision rate of the target transmission project.

[0135] In one embodiment, when the processor executes the computer program, the following steps are also implemented: taking the proportion of the cost data under the cost category to which the cost influencing factor belongs to the sum of the cost data corresponding to at least one cost influencing factor as the proportion of the cost expense corresponding to the cost influencing factor; taking the proportion of the cost influence data corresponding to the cost influencing factor in the latest revision period to the change data of the cost influencing factor in the previous revision period as the influence data change rate; taking the product of the cost expense proportion and the influence data change rate as the reference cost revision rate corresponding to the cost influencing factor.

[0136] In one embodiment, when the processor executes the computer program, the following steps are also implemented: using the average of the reference cost revision rates corresponding to the cost influencing factors belonging to the same cost category as the second cost revision rate corresponding to the cost category; using the sum of the second cost revision rates corresponding to different cost categories as the third cost revision rate; and generating a comprehensive cost revision rate including the basic cost revision rate and the third cost revision rate.

[0137] In one embodiment, when the processor executes the computer program, the following steps are also implemented: obtaining at least one predicted impact data of the target power transmission project in the historical revision period; wherein the predicted impact data includes historical impact data corresponding to different cost impact factors; based on at least one pre-trained cost prediction model, respectively performing cost prediction on the predicted impact data to obtain each cost prediction result corresponding to the predicted impact data; for any cost prediction model, using the historical impact data corresponding to the predicted impact data as an independent variable, and using the corresponding cost prediction result as a dependent variable for linear fitting to obtain the cost impact weights corresponding to different cost impact factors under the cost prediction model; selecting key impact factors from different cost impact factors according to the cost impact weights of each cost impact factor under different cost prediction models; obtaining cost impact data corresponding to at least one key impact factor of the target power transmission project in the latest revision period.

[0138] In one embodiment, when the processor executes the computer program, the following steps are also implemented: according to the cost impact weight of each cost impact factor under each cost prediction model, the initial impact factor under the cost prediction model is selected from different cost impact factors; according to the intersection between the initial impact factors under each cost prediction model, the key impact factor is determined.

[0139] In one embodiment, when the processor executes the computer program, the following steps are also implemented: generating predicted derivative data corresponding to the predicted impact data; based on at least one pre-trained cost prediction model, performing cost prediction on the predicted derivative data respectively, and obtaining cost prediction results corresponding to the predicted impact data.

[0140] Among them, the cost prediction model is trained based on the following method: obtaining sample impact data corresponding to different cost impact factors of the target transmission project during the sample revision period, and the cost data labels corresponding to the sample impact data; adjusting the impact value of any sample impact data under at least one cost impact factor to generate sample derivative data of the sample impact data; using the cost data label of the sample impact data corresponding to the sample derivative data as the cost data label of the sample derivative data; and training the pre-constructed cost prediction model according to the sample derivative data and the cost data label of the sample derivative data.

[0141] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0142] Obtain the cost impact data corresponding to different cost impact factors of the target transmission project in the latest revision period, as well as the cost data under the cost type to which different cost impact factors belong;

[0143] According to the comprehensive cost revision rate of the target transmission project, revise the cost data in the latest revision period;

[0144] Among them, the comprehensive cost revision rate of the target transmission project is determined in the following way:

[0145] Determine the reference cost revision rate for the target transmission project based on the cost data under the cost category to which the cost influencing factors belong and the change data of the cost influencing factors corresponding to the cost influencing data during the latest revision period;

[0146] Determine the base cost revision rate for the target transmission project;

[0147] A comprehensive cost revision rate is determined based on the basic cost revision rate and a reference cost revision rate corresponding to at least one cost influencing factor.

[0148] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: based on the preset correspondence between different transmission voltages and each first cost revision rate, the first cost revision rate corresponding to the target transmission voltage corresponding to the target transmission project is used as the basic cost revision rate of the target transmission project.

[0149] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: taking the proportion of the cost data under the cost category to which the cost influencing factor belongs to the sum of the cost data corresponding to at least one cost influencing factor as the proportion of the cost expense corresponding to the cost influencing factor; taking the proportion of the cost influence data corresponding to the cost influencing factor in the latest revision period to the change data of the cost influencing factor in the previous revision period as the influence data change rate; taking the product of the cost expense proportion and the influence data change rate as the reference cost revision rate corresponding to the cost influencing factor.

[0150] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: taking the average of the reference cost revision rates corresponding to the cost influencing factors belonging to the same cost category as the second cost revision rate corresponding to the cost category; taking the sum of the second cost revision rates corresponding to different cost categories as the third cost revision rate; and generating a comprehensive cost revision rate including the basic cost revision rate and the third cost revision rate.

[0151] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: obtaining at least one predicted impact data of the target power transmission project in the historical revision period; wherein the predicted impact data includes historical impact data corresponding to different cost impact factors; based on at least one pre-trained cost prediction model, respectively performing cost prediction on the predicted impact data to obtain each cost prediction result corresponding to the predicted impact data; for any cost prediction model, using the historical impact data corresponding to the predicted impact data as an independent variable, and using the corresponding cost prediction result as a dependent variable for linear fitting to obtain the cost impact weights corresponding to different cost impact factors under the cost prediction model; selecting key impact factors from different cost impact factors according to the cost impact weights of each cost impact factor under different cost prediction models; obtaining cost impact data corresponding to at least one key impact factor of the target power transmission project in the latest revision period.

[0152] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: according to the cost impact weight of each cost impact factor under each cost prediction model, the initial impact factors under the cost prediction model are selected from different cost impact factors; according to the intersection between the initial impact factors under each cost prediction model, the key impact factors are determined.

[0153] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: generating predicted derivative data corresponding to the predicted impact data; performing cost prediction on the predicted derivative data based on at least one pre-trained cost prediction model to obtain cost prediction results corresponding to the predicted impact data.

[0154] Among them, the cost prediction model is trained based on the following method: obtaining sample impact data corresponding to different cost impact factors of the target transmission project during the sample revision period, and the cost data labels corresponding to the sample impact data; adjusting the impact value of any sample impact data under at least one cost impact factor to generate sample derivative data of the sample impact data; using the cost data label of the sample impact data corresponding to the sample derivative data as the cost data label of the sample derivative data; and training the pre-constructed cost prediction model according to the sample derivative data and the cost data label of the sample derivative data.

[0155] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0156] Obtain the cost impact data corresponding to different cost impact factors of the target transmission project in the latest revision period, as well as the cost data under the cost type to which different cost impact factors belong;

[0157] According to the comprehensive cost revision rate of the target transmission project, revise the cost data in the latest revision period;

[0158] Among them, the comprehensive cost revision rate of the target transmission project is determined in the following way:

[0159] Determine the reference cost revision rate for the target transmission project based on the cost data under the cost category to which the cost influencing factors belong and the change data of the cost influencing factors corresponding to the cost influencing data during the latest revision period;

[0160] Determine the base cost revision rate for the target transmission project;

[0161] A comprehensive cost revision rate is determined based on the basic cost revision rate and a reference cost revision rate corresponding to at least one cost influencing factor.

[0162] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: based on the preset correspondence between different transmission voltages and each first cost revision rate, the first cost revision rate corresponding to the target transmission voltage corresponding to the target transmission project is used as the basic cost revision rate of the target transmission project.

[0163] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: taking the proportion of the cost data under the cost category to which the cost influencing factor belongs to the sum of the cost data corresponding to at least one cost influencing factor as the proportion of the cost expense corresponding to the cost influencing factor; taking the proportion of the cost influence data corresponding to the cost influencing factor in the latest revision period to the change data of the cost influencing factor in the previous revision period as the influence data change rate; taking the product of the cost expense proportion and the influence data change rate as the reference cost revision rate corresponding to the cost influencing factor.

[0164] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: taking the average of the reference cost revision rates corresponding to the cost influencing factors belonging to the same cost category as the second cost revision rate corresponding to the cost category; taking the sum of the second cost revision rates corresponding to different cost categories as the third cost revision rate; and generating a comprehensive cost revision rate including the basic cost revision rate and the third cost revision rate.

[0165] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: obtaining at least one predicted impact data of the target power transmission project in the historical revision period; wherein the predicted impact data includes historical impact data corresponding to different cost impact factors; based on at least one pre-trained cost prediction model, respectively performing cost prediction on the predicted impact data to obtain each cost prediction result corresponding to the predicted impact data; for any cost prediction model, using the historical impact data corresponding to the predicted impact data as an independent variable, and using the corresponding cost prediction result as a dependent variable for linear fitting to obtain the cost impact weights corresponding to different cost impact factors under the cost prediction model; selecting key impact factors from different cost impact factors according to the cost impact weights of each cost impact factor under different cost prediction models; obtaining cost impact data corresponding to at least one key impact factor of the target power transmission project in the latest revision period.

[0166] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: according to the cost impact weight of each cost impact factor under each cost prediction model, the initial impact factors under the cost prediction model are selected from different cost impact factors; according to the intersection between the initial impact factors under each cost prediction model, the key impact factors are determined.

[0167] In one embodiment, when the processor executes the computer program, the following steps are also implemented: generating predicted derivative data corresponding to the predicted impact data; based on at least one pre-trained cost prediction model, performing cost prediction on the predicted derivative data respectively, and obtaining cost prediction results corresponding to the predicted impact data.

[0168] Among them, the cost prediction model is trained based on the following method: obtaining sample impact data corresponding to different cost impact factors of the target transmission project during the sample revision period, and the cost data labels corresponding to the sample impact data; adjusting the impact value of any sample impact data under at least one cost impact factor to generate sample derivative data of the sample impact data; using the cost data label of the sample impact data corresponding to the sample derivative data as the cost data label of the sample derivative data; and training the pre-constructed cost prediction model according to the sample derivative data and the cost data label of the sample derivative data.

[0169] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method 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 the present application can include at least one of non-volatile memory 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), magnetic 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, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0170] 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 application.

[0171] 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 typical cost revision method for a power transmission project, characterized in that: include: Obtaining cost impact data corresponding to different cost impact factors of the target power transmission project in the latest revision period, and cost data under the cost type to which the different cost impact factors belong; According to the comprehensive cost revision rate of the target power transmission project, the cost data in the latest revision period are revised; The comprehensive cost revision rate of the target power transmission project is determined in the following manner: Determine a reference cost revision rate for the target power transmission project based on the cost data of the cost category to which the cost influencing factor belongs and the change data of the cost influencing data corresponding to the cost influencing factor during the latest revision period; Determining the base cost revision rate for the target transmission project; The comprehensive cost revision rate is determined according to the basic cost revision rate and the reference cost revision rate corresponding to the at least one cost influencing factor.

2. The method according to claim 1, characterized in that Determining the basic cost revision rate of the target power transmission project includes: Based on the correspondence between different preset transmission voltages and each first cost revision rate, the first cost revision rate corresponding to the target transmission voltage corresponding to the target transmission project is used as the basic cost revision rate of the target transmission project.

3. The method according to claim 1, characterized in that Determining the reference cost revision rate for the target power transmission project according to the cost data under the cost category to which the cost influencing factor belongs and the change data of the cost influencing data corresponding to the cost influencing factor during the latest revision period includes: The proportion of the cost data under the cost category to which the cost influencing factor belongs to the sum of the cost data corresponding to the at least one cost influencing factor is used as the proportion of the cost expense corresponding to the cost influencing factor; The change data of the cost impact data corresponding to the cost impact factor in the latest revision period is taken as the ratio of the cost impact data corresponding to the same cost impact factor in the previous revision period of the latest revision period as the impact data change rate; The product of the construction cost proportion and the change rate of the influencing data is used as the reference cost revision rate corresponding to the cost influencing factor.

4. The method according to claim 1, characterized in that: The determining the comprehensive cost revision rate according to the basic cost revision rate and the reference cost revision rate corresponding to the at least one cost influencing factor includes: The average of the reference cost revision rates corresponding to the cost influencing factors belonging to the same cost category is used as the second cost revision rate corresponding to the cost category; The sum of the second cost revision rates corresponding to different cost categories is used as the third cost revision rate; A comprehensive cost revision rate including the basic cost revision rate and the third cost revision rate is generated.

5. The method according to any one of claims 1 to 4, characterized in that: The acquisition of cost impact data corresponding to different cost impact factors of the target transmission project in the latest revised period includes: Acquire at least one predicted impact data of the target power transmission project in a historical revision period; wherein the predicted impact data includes historical impact data corresponding to different cost impact factors; Based on at least one pre-trained cost prediction model, respectively perform cost prediction on the prediction impact data to obtain cost prediction results corresponding to the prediction impact data; For any cost prediction model, the historical impact data corresponding to the predicted impact data is used as an independent variable, and the corresponding cost prediction result is used as a dependent variable for linear fitting to obtain the cost impact weights corresponding to different cost impact factors under the cost prediction model; According to the cost impact weights of the cost impact factors under different cost prediction models, key impact factors are selected from different cost impact factors; Obtain cost impact data corresponding to at least one key influencing factor of the target transmission project in the latest revision period.

6. The method according to claim 5, characterized in that According to the cost impact weights of the cost impact factors under different cost prediction models, key impact factors are selected from different cost impact factors, including: According to the cost impact weights of the cost impact factors under each cost forecast model, selecting the initial impact factors under the cost forecast model from different cost impact factors; The key influencing factors are determined according to the intersection of the initial influencing factors under each of the cost prediction models.

7. The method according to claim 4, characterized in that Based on at least one pre-trained cost prediction model, cost prediction is performed on the prediction impact data respectively to obtain cost prediction results corresponding to the prediction impact data, including: generating predicted derivative data corresponding to the predicted impact data; Based on at least one pre-trained cost prediction model, respectively perform cost prediction on the prediction derivative data to obtain cost prediction results corresponding to the prediction impact data; The cost prediction model is trained based on the following method: Obtaining sample impact data corresponding to different cost impact factors of the target power transmission project during a sample revision period, and cost data labels corresponding to the sample impact data; Adjusting the influence value of any sample influence data under at least one cost influence factor to generate sample derivative data of the sample influence data; Using the cost data label of the sample-derived data corresponding to the sample-influencing data as the cost data label of the sample-derived data; Model training is performed on a pre-built cost prediction model according to the sample derived data and the cost data labels of the sample derived data.

8. A typical cost revision device, characterized in that: The device comprises: An acquisition module, used to acquire cost impact data corresponding to different cost impact factors of the target power transmission project in the latest revised period, and cost data under the cost type to which the different cost impact factors belong; The revision module is used to revise the various cost data in the latest revision period according to the comprehensive cost revision rate of the target power transmission project.

9. 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 7 are implemented.

10. 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 7 are implemented.

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