Construction engineering budget analysis method and system for offshore wind power engineering project

Abstract

The application provides a construction engineering budget analysis method and system for a marine wind power engineering project, comprising the following steps: constructing a visual model according to planning data of the marine wind power engineering project; generating initial budget analysis data according to the visual model; acquiring project construction data in real time in the project construction process, updating the visual model according to the project construction data, and updating the initial budget analysis data according to the project construction data and the visual model. The construction engineering budget analysis method for the marine wind power engineering project can realize accurate and effective whole-process cost management.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering life cycle management, and in particular to a construction engineering budget analysis method and system for offshore wind power engineering projects. Background Art

[0002] Offshore wind power, with its abundant resources, high power generation hours, land-saving nature, and suitability for large-scale development, is the latest frontier in global wind power development. Offshore wind power projects are the construction of offshore wind turbines to harness offshore wind energy.

[0003] Cost management for offshore wind power projects is implemented throughout the project lifecycle, from pre-project design, bidding, construction, to final acceptance, ensuring that costs remain within budget at every stage. Competitive bidding, optimized construction plans, and strengthened quality control are key measures to effectively control project costs. Accurately and effectively implementing this end-to-end cost management is a pressing technical challenge. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a construction engineering budget analysis method and system for offshore wind power engineering projects, so as to achieve accurate and effective cost management throughout the entire process.

[0005] An embodiment of the present invention provides a construction engineering budget analysis method for an offshore wind power project, comprising:

[0006] Build a visualization model based on the planning data of offshore wind power projects;

[0007] Generate initial budget analysis data based on the visualization model;

[0008] During the project construction process, the project construction data is obtained in real time, and the visual model is updated based on the project construction data.

[0009] Update initial budget analysis data based on project construction data and visualization models.

[0010] Preferably, a visualization model is constructed based on the planning data of the offshore wind power project, including:

[0011] Extract planning data according to pre-configured data extraction templates for each model component and the data extraction rules corresponding to each data extraction template to obtain parameter data corresponding to each model component;

[0012] According to the parameter data corresponding to each model component, the corresponding model component is retrieved from the pre-configured model library;

[0013] The retrieved model components are spliced ​​together to form a visual model.

[0014] Preferably, generating initial budget analysis data based on the visualization model includes:

[0015] According to the pre-configured model segmentation rules, the visual model is segmented to obtain multiple estimated units;

[0016] Generate initial analysis data corresponding to each budget estimate unit based on pre-configured budget estimate rules corresponding to each budget estimate unit;

[0017] The initial analysis data corresponding to each budget estimate unit is collected to obtain the initial budget estimate analysis data.

[0018] Preferably, updating the visual model based on the project construction data includes:

[0019] Perform finite element segmentation on the visual model, dividing the visual model into various finite element units;

[0020] Determine the corresponding status of each finite element based on the project construction data;

[0021] Fill the completed finite element units.

[0022] Preferably, the initial budget analysis data is updated based on the project construction data and the visualization model, including:

[0023] Based on the project construction data corresponding to the completed finite element units, actual cost accounting is performed to update the data corresponding to the finite element units in the initial budget analysis data;

[0024] updating the actual costs of other second related items in the initial budget analysis data based on the actual costs of the first related items belonging to the pre-configured associated cost items in the project construction data;

[0025] The data of the same unimplemented estimate items in the initial estimate analysis data are updated based on the actual costs of the estimate items that have been incurred in the project construction data.

[0026] The present invention provides a construction engineering budget analysis system for offshore wind power engineering projects, comprising: a construction module, a generation module and an update module; wherein the construction module constructs a visualization model based on planning data of the offshore wind power engineering project; the generation module generates initial budget analysis data based on the visualization model; and the update module obtains project construction data in real time during the project construction process, updates the visualization model based on the project construction data, and updates the initial budget analysis data based on the project construction data and the visualization model.

[0027] Preferably, the construction module constructs a visualization model based on the planning data of the offshore wind power project, including:

[0028] Extract planning data according to pre-configured data extraction templates for each model component and the data extraction rules corresponding to each data extraction template to obtain parameter data corresponding to each model component;

[0029] According to the parameter data corresponding to each model component, the corresponding model component is retrieved from the pre-configured model library;

[0030] The retrieved model components are spliced ​​together to form a visual model.

[0031] Preferably, the generation module generates initial budget analysis data based on the visualization model, including:

[0032] According to the pre-configured model segmentation rules, the visual model is segmented to obtain multiple estimated units;

[0033] Generate initial analysis data corresponding to each budget estimate unit based on pre-configured budget estimate rules corresponding to each budget estimate unit;

[0034] The initial analysis data corresponding to each budget estimate unit is collected to obtain the initial budget estimate analysis data.

[0035] Preferably, the updating module updates the visual model according to the project construction data, including:

[0036] Perform finite element segmentation on the visual model, dividing the visual model into various finite element units;

[0037] Determine the corresponding status of each finite element based on the project construction data;

[0038] Fill the completed finite element units.

[0039] Preferably, the updating module updates the initial budget analysis data based on the project construction data and the visualization model, including:

[0040] Based on the project construction data corresponding to the completed finite element units, actual cost accounting is performed to update the data corresponding to the finite element units in the initial budget analysis data;

[0041] updating the actual costs of other second related items in the initial budget analysis data based on the actual costs of the first related items belonging to the pre-configured associated cost items in the project construction data;

[0042] The data of the same unimplemented estimate items in the initial estimate analysis data are updated based on the actual costs of the estimate items that have been incurred in the project construction data.

[0043] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0044] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] 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:

[0046] Figure 1 Schematic diagram of a construction engineering budget analysis method for an offshore wind power project according to an embodiment of the present invention;

[0047] Figure 2 Schematic diagram of a construction engineering budget analysis system for offshore wind power projects according to an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0049] The embodiment of the present invention provides a construction engineering budget analysis method for offshore wind power engineering projects, such as Figure 1 Shown, including:

[0050] Step 1: Build a visualization model based on the planning data of the offshore wind power project;

[0051] Step 2: Generate initial budget analysis data based on the visualization model;

[0052] Step 3: During the project construction process, obtain the project construction data in real time and update the visualization model based on the project construction data.

[0053] Step 4: Update the initial budget analysis data based on the project construction data and visualization model.

[0054] The working principle and beneficial effects of the above technical solution are:

[0055] For the offshore wind power project budget template, the sub-projects are divided into: construction auxiliary projects, equipment and installation projects, construction projects, and other expenses. The construction project table is used to store the project divisions in the "Compilation Regulations". The table header row attribute fields include: code, project name, project characteristics, unit, quantity calculation, quantity, unit price, unit price number, remarks, project category, mark color, index unit price, similar unit price range, etc. The calculation of the construction project budget cost is the core link of project planning and budget management. It ensures the accurate estimation of project costs, provides a scientific basis for project investment decisions, fund raising, cost control and contract negotiations, and helps to optimize resource allocation, reduce financial risks, improve project economic benefits, and ensure the smooth progress of project construction.

[0056] (1) Equipment costs

[0057] The cost of major equipment is calculated by multiplying the design engineering quantity by the original equipment price, and taking into account comprehensive transportation and miscellaneous expenses. The original equipment price is calculated according to the following criteria: Wind turbine generator equipment is purchased domestically as a complete unit, with reference to the tendered price and a comprehensive consideration. The on-site price is 3,400 yuan / kW. The tower is produced domestically, and the on-site price is 10,000 yuan / ton. Comprehensive transportation and miscellaneous expenses are calculated at 0.6% of the original equipment price, including 0.1% for unloading fees and 0.5% for procurement and storage fees.

[0058] The unit price of other equipment is calculated based on similar projects and market prices. Comprehensive transportation and miscellaneous expenses are calculated at 4.92% of the original equipment price, including 4.0% for equipment transportation and miscellaneous expenses, 0.4% for equipment transportation insurance, and 0.5% for equipment purchase and storage fees.

[0059] (2) Installation fee

[0060] Calculated by multiplying the design engineering quantity by the installation unit price.

[0061] Calculating the estimated cost of power plant equipment and installation projects is a complex process involving multiple costs. The following are common formulas for calculating the estimated cost:

[0062] 1. Equipment costs

[0063] Equipment costs include all necessary equipment purchase costs, such as wind turbines, transformers, switchyard equipment, submarine cables, etc.

[0064] Equipment cost = ∑(equipment unit price × equipment quantity)

[0065] 2. Installation costs

[0066] Installation costs include equipment installation, commissioning, testing and other costs.

[0067] Installation cost = ∑(installation unit price × number of devices)

[0068] 3. Transportation costs

[0069] Transportation costs include the cost of transporting equipment from the manufacturing plant to the construction site.

[0070] Transportation cost = ∑(transportation unit price × equipment weight or volume)

[0071] 4. Civil construction costs

[0072] Civil engineering costs include infrastructure construction, road construction, substation construction, etc.

[0073] Civil construction cost = ∑(civil construction unit price × civil construction quantity)

[0074] 5. Survey and design fees

[0075] The survey and design costs include geological survey, engineering design, drawing production, etc.

[0076] Survey and design costs = total project investment × survey and design rate

[0077] 6. Project construction management expenses

[0078] Project construction management costs include project management, supervision, consulting and other fees.

[0079] Project construction management fee = total project investment × project construction management fee rate

[0080] 7. Production preparation costs

[0081] Production preparation costs include personnel training, production startup and other costs.

[0082] Production preparation cost = total project investment × production preparation rate

[0083] 8. Other expenses

[0084] Other expenses include temporary facility fees, insurance premiums, unforeseen expenses, etc.

[0085] Other expenses = ∑(various expenses)

[0086] 9. Taxes

[0087] Taxes and fees include value-added tax, urban maintenance and construction tax, education surcharge, etc.

[0088] Taxes = ∑(various expenses × tax rate)

[0089] 10. Total Cost

[0090] Sum up the above expenses to get the total cost.

[0091] Total cost = equipment cost + installation cost + transportation cost + civil engineering cost + survey and design cost + project construction management cost + production preparation cost + other costs + taxes

[0092] Calculation process for the estimated cost of equipment and installation projects for offshore power generation projects

[0093] Equipment and installation project budget = power plant equipment and installation project budget + booster energy storage station equipment and installation project budget + other equipment and installation project budget

[0094] The required equipment quantity, equipment cost, installation engineering cost, material cost for equipment supplied by Party A, and comprehensive transportation and miscellaneous expenses are known. Define the equipment quantity, equipment cost, installation cost, and comprehensive transportation and miscellaneous expenses.

[0095] Known formula

[0096] Power plant equipment and installation project costs = (N1×C1+N1×(I 1+M1)+T1)+(N2×C2+N2×

[0097] (I2+M2)+T2)+(N3×C3+N3×(I3+M3)+T3)+(N4×C4+N4×(I4+M4)+T4)+(N5×C5+N5×(I5+M5)+T5)

[0098] in:

[0099] N1: Number of wind turbines

[0100] C1: Wind turbine equipment cost

[0101] I 1: Wind turbine installation fee

[0102] M1: Wind turbine generator system equipment material cost supplied by Party A

[0103] T1: Comprehensive transportation and miscellaneous fees for wind turbines

[0104] N2: Number of towers (frames)

[0105] C2: Tower (frame) equipment fee

[0106] I2: Tower (frame) installation fee

[0107] M2: Tower (frame) equipment material cost provided by Party A

[0108] T2: Tower (frame) comprehensive transportation and miscellaneous fees

[0109] N3: Number of outgoing wires from wind turbines

[0110] C3: Wind turbine outgoing line equipment fee

[0111] I 3: Wind turbine line installation fee

[0112] M3: Wind turbine outgoing line supply equipment material cost

[0113] T3: Comprehensive transportation and miscellaneous fees for wind turbine outgoing lines

[0114] N4: Number of transformers in the unit

[0115] C4: Unit transformer equipment cost

[0116] I4: Unit transformer installation fee

[0117] M4: Cost of equipment materials supplied by A for the unit transformer

[0118] T4: Comprehensive transportation and miscellaneous fees for unit transformers

[0119] N5: Number of grounding devices

[0120] C5: Grounding equipment fee

[0121] I5: Grounding equipment installation fee

[0122] M5: Grounding equipment supplier's installation material fee

[0123] T5: Comprehensive transportation and miscellaneous charges for grounding equipment

[0124] By putting the calculated estimated costs of power plant equipment and installation projects, collector line equipment and installation projects, booster energy storage station equipment and installation projects, and other equipment and installation projects into the formula, we can finally get the estimated costs of offshore power generation project equipment and installation projects.

[0125] For the above-mentioned budget estimation process, by listing the various projects of the project, it is impossible to conduct targeted analysis during the implementation process. On this basis, the present invention proposes a construction project budget analysis method for offshore wind power engineering projects. First, a visualization model is constructed based on the planning data of the offshore wind power engineering project; the specific effects of the project can be intuitively seen through the visualization model; then, initial budget analysis data is generated based on the visualization model; the initial budget analysis data is basically equivalent to the above-mentioned budget estimation process, but it should be noted that in order to facilitate subsequent management, each budget item of the budget data needs to be associated with a model component or a divided unit of the visualization model. During the project construction process, the project construction data is obtained in real time, and the visualization model is updated based on the project construction data, and the initial budget analysis data is updated based on the project construction data and the visualization model; through the real-time update of the project construction data, the initial budget analysis data is updated on this basis, so as to realize accurate and effective cost management throughout the process.

[0126] In order to realize the construction of a visualization model, in one embodiment, the visualization model is constructed based on the planning data of the offshore wind power project, including:

[0127] Extract planning data according to pre-configured data extraction templates for each model component and the data extraction rules corresponding to each data extraction template to obtain parameter data corresponding to each model component;

[0128] According to the parameter data corresponding to each model component, the corresponding model component is retrieved from the pre-configured model library;

[0129] The retrieved model components are spliced ​​together to form a visual model.

[0130] The construction of the visualization model provided in this embodiment is based on a pre-configured model library, which stores various model components of the construction project. The model components may specifically include: model components corresponding to wind turbines, model components corresponding to unit transformers, model components corresponding to towers, model components corresponding to grounding equipment, etc.; by extracting the planning data to extract the model components covered by this construction project, and then splicing the components to form a visualization model; the visualization model is essentially a three-dimensional model corresponding to the project; in order to facilitate the generation of the visualization model, when the planning data is formed, a part of the planning data can clearly state the number of the components of the construction project (unit transformers, wind turbines, etc.) and the corresponding parameters (models, power, dimensions, etc.), as well as the connections between the components, etc.; the splicing of the models retrieved according to the connection relationship stated in the planning data ensures the accuracy of the formed visualization model.

[0131] In order to achieve accurate generation of initial budget analysis data, in one embodiment, generating initial budget analysis data based on a visualization model includes:

[0132] Based on pre-configured model segmentation rules, the visual model is segmented to obtain multiple budget units. For example, the indivisible parts (such as wind turbines and transformers, which are finished units that can be directly installed and wired) can be segmented as a whole into a budget unit. For divisible parts (such as towers), they can be segmented using the equal-area segmentation method or by the smallest units such as beams and rods. The equal-area segmentation method treats the area as a whole.

[0133] Generate initial analysis data for each budget unit based on pre-configured budget rules. Each budget unit is configured with its own budget rules, which quantify the equipment costs, equipment installation costs, device material costs, and comprehensive transportation and miscellaneous costs required for each budget unit.

[0134] The initial analysis data corresponding to each budget unit is collected to obtain the initial budget analysis data. This is done by integrating the individual initial analysis data of each budget unit and then adding other related costs (civil construction costs + survey and design costs + project construction management costs + production preparation costs + other costs + taxes, which can be obtained from planning data or calculated using pre-configured calculation formulas) to form the initial budget analysis data.

[0135] To achieve accurate model updates, in one embodiment, updating the visual model based on project construction data includes:

[0136] Perform finite element segmentation on the visual model and divide it into various finite element units. When performing finite element segmentation, you can refer to the segmentation of the estimated unit, that is, the indivisible parts (wind turbines, unit transformers, etc., which are finished units that can be directly installed and wired) are divided as a whole into a finite element unit. For the divisible parts (towers, etc.), they can be divided according to the equal area segmentation method or according to the smallest units such as beams and rods. The equal area segmentation method treats this area as a whole as a finite element unit. When performing the regional segmentation method, the parameters such as material details in the segmented area are counted and used as the characterization parameters of the finite element unit.

[0137] Determine the status of each finite element based on the project construction data; the status includes: completed, under construction, and not under construction;

[0138] Fill the completed finite element units. There are two representations of finite element units: one is unfilled, which uses a frame to construct the outline of the finite element to mark it; the other is filled, which is to fill the area between the frames with solid color;

[0139] This embodiment divides the model into finite element units and uses the filling of the finite element units to indicate the completion of construction, which allows intuitive viewing of the construction effect and facilitates the update of the initial budget analysis data.

[0140] To update the model to the initial budget analysis data, in one embodiment, the initial budget analysis data is updated based on the project construction data and the visualization model, including:

[0141] Based on the project construction data corresponding to the completed finite element units, actual cost accounting is performed to update the data corresponding to the finite element units in the initial budget analysis data;

[0142] updating the actual costs of other second related items in the initial budget analysis data based on the actual costs of the first related items belonging to the pre-configured associated cost items in the project construction data;

[0143] The data of the same unimplemented estimate items in the initial estimate analysis data are updated based on the actual costs of the estimate items that have been incurred in the project construction data.

[0144] When updating the initial budget analysis data, it mainly includes updating the data of the finite element units that have been completed in the initial budget analysis data. Construction completion means that the project represented by the finite element unit is completed and the cost has actually been incurred. In essence, it is to update the estimated data in the initial budget analysis data to the actual cost; then update the related costs, such as taxes and fees related to the total cost. In addition, the ratio between the installation fee of the configured wind turbine and the installation fee of the unit transformer is A. When the installation fee of the wind turbine is the corresponding first relationship item, the installation fee of the unit transformer is the second relationship item. When the installation fee of the wind turbine is recorded in the construction data and the installation fee of the unit transformer is not recorded, the related cost item can be used to supplement the data; finally, the actual costs that have not been paid are updated and corrected based on the actual costs that have been paid, and further updated and corrected based on the actual costs incurred by the construction project itself, so that the budget analysis data is closer and closer to reality, and it has more analytical and research value.

[0145] In one embodiment, the data of the same unimplemented budget items in the initial budget analysis data are updated based on the actual costs of the budget items generated in the project construction data, including:

[0146] Group the actual costs of the estimated items that have been incurred by finite element units and match them with the corresponding filled finite element units;

[0147] According to the characterization parameters of the filled finite element unit and the unfilled finite element unit, the unfilled finite element unit and the filled finite element unit are associated and an association coefficient set is determined;

[0148] Based on the determined correlation coefficient and the actual cost in the group corresponding to the filled finite element unit, the estimated cost data corresponding to the associated unfilled finite element unit is updated;

[0149] The data in the correlation coefficient set are the inverse of the ratio between the actual cost of each generated budget item in the group and the corresponding associated ungenerated budget data; when updating, the actual cost can be directly multiplied by the corresponding data in the correlation coefficient set to update the budget data with the obtained data;

[0150] According to the characterization parameters of the filled finite element unit and the unfilled finite element unit, the unfilled finite element unit and the filled finite element unit are associated and an association coefficient set is determined, including:

[0151] When the filled finite element unit and the unfilled finite element unit have the same number and consistent characterization parameters, the two are associated; at this time, the association may appear one-to-many, many-to-one, or many-to-many.

[0152] When the same unfilled finite element is associated with multiple filled finite element elements, one approach to facilitate analysis and processing is to further narrow the association relationship. Based on the narrowing requirement, a feature set of the finite element is constructed, and then the association relationship is further narrowed based on the feature set. The feature set construction steps are as follows: the parameter data representing the parameters are arranged in sequence and the coordinate data representing the position of the finite element in the model and the time data of the filling time are added to the arranged data to form a feature set. The time of the unfilled finite element planned according to the construction schedule is used as the time data of the filling time. The narrowing method is to calculate the similarity between the feature set of the unfilled finite element and the feature set of the filled finite element, and select the filled finite element with the greatest similarity as the final association item with the unfilled finite element. The similarity can be calculated using the cosine similarity method.

[0153] At this time, the construction of the correlation coefficient set is to configure different relationship conversion tables for each needle parameter between each associated finite element unit; when determining, based on the representation parameter, or the representation parameter and the position parameter (the position parameter is the position of the filled finite element unit in the model and the position of the unfilled finite element unit in the model), the relationship conversion table is queried to obtain the corresponding value;

[0154] To further improve the accuracy of the updates, the construction engineering budget analysis for offshore wind power projects also includes:

[0155] When updating the estimated data corresponding to the filled finite element unit according to the associated filled finite element unit, determining whether the estimated data corresponding to the filled finite element unit has been updated in an associated manner, and if so, determining the number of associated updates and the updated value each time;

[0156] Determine the variance coefficient between each updated value and the actual cost (the ratio between the difference between the actual cost and the updated value); variance determination should be performed for each budget item;

[0157] The final correction coefficient is determined according to the following formula:

[0158]

[0159] Where C i is the difference coefficient of the last i-th update, μ iThe weight of the last ith update is determined by querying the preset weight coefficient table based on the number of updates, and X is the correction coefficient;

[0160] The estimated data of the corresponding estimated items are corrected according to the correction coefficient. The corrected data is the original data plus the product of the correction coefficient and the original data.

[0161] The present invention provides a construction engineering budget analysis system for offshore wind power engineering projects, such as Figure 2 As shown, it includes: a construction module 1, a generation module 2 and an update module 3; among which, the construction module 1 constructs a visualization model based on the planning data of the offshore wind power project; the generation module 2 generates initial budget analysis data based on the visualization model; the update module 3 obtains the project construction data in real time during the project construction process, updates the visualization model based on the project construction data, and updates the initial budget analysis data based on the project construction data and the visualization model.

[0162] In one embodiment, the construction module constructs a visualization model based on the planning data of the offshore wind power project, including:

[0163] Extract planning data according to pre-configured data extraction templates for each model component and the data extraction rules corresponding to each data extraction template to obtain parameter data corresponding to each model component;

[0164] According to the parameter data corresponding to each model component, the corresponding model component is retrieved from the pre-configured model library;

[0165] The retrieved model components are spliced ​​together to form a visual model.

[0166] In one embodiment, the generation module generates initial budget analysis data based on the visualization model, including:

[0167] According to the pre-configured model segmentation rules, the visual model is segmented to obtain multiple estimated units;

[0168] Generate initial analysis data corresponding to each budget estimate unit based on pre-configured budget estimate rules corresponding to each budget estimate unit;

[0169] The initial analysis data corresponding to each budget estimate unit is collected to obtain the initial budget estimate analysis data.

[0170] In one embodiment, the updating module updates the visual model based on the project construction data, including:

[0171] Perform finite element segmentation on the visual model, dividing the visual model into various finite element units;

[0172] Determine the corresponding status of each finite element based on the project construction data;

[0173] Fill the completed finite element units.

[0174] In one embodiment, the updating module updates the initial budget analysis data based on the project construction data and the visualization model, including:

[0175] Based on the project construction data corresponding to the completed finite element units, actual cost accounting is performed to update the data corresponding to the finite element units in the initial budget analysis data;

[0176] updating the actual costs of other second related items in the initial budget analysis data based on the actual costs of the first related items belonging to the pre-configured associated cost items in the project construction data;

[0177] The data of the same unimplemented estimate items in the initial estimate analysis data are updated based on the actual costs of the estimate items that have been incurred in the project construction data.

[0178] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A construction engineering budget analysis method for an offshore wind power project, characterized in that: include: Build a visualization model based on the planning data of offshore wind power projects; Generate initial budget analysis data based on the visualization model; During the project construction process, the project construction data is obtained in real time, and the visual model is updated based on the project construction data. Update the initial budget analysis data based on project construction data and visualization models; Among them, based on the planning data of the offshore wind power project, a visualization model is constructed, including: Extract planning data according to pre-configured data extraction templates for each model component and the data extraction rules corresponding to each data extraction template to obtain parameter data corresponding to each model component; According to the parameter data corresponding to each model component, the corresponding model component is retrieved from the pre-configured model library; Splice the retrieved model components to form a visual model; Generate preliminary budget analysis data based on the visualization model, including: According to the pre-configured model segmentation rules, the visual model is segmented to obtain multiple estimated units; Generate initial analysis data corresponding to each budget estimate unit based on pre-configured budget estimate rules corresponding to each budget estimate unit; Count the initial analysis data corresponding to each budget estimate unit to obtain initial budget estimate analysis data; Update the visual model based on project construction data, including: Perform finite element segmentation on the visual model, dividing the visual model into various finite element units; Determine the corresponding status of each finite element based on the project construction data; Fill the completed finite element units; Update the initial budget analysis data based on project construction data and visualization models, including: Based on the project construction data corresponding to the completed finite element units, actual cost accounting is performed to update the data corresponding to the finite element units in the initial budget analysis data; updating the actual costs of other second related items in the initial budget analysis data based on the actual costs of the first related items belonging to the pre-configured associated cost items in the project construction data; The data of the same unimplemented estimate items in the initial estimate analysis data are updated based on the actual costs of the estimate items that have been incurred in the project construction data.

2. A construction engineering budget analysis system for offshore wind power projects, characterized in that: include: The construction module, generation module and update module are as follows: the construction module constructs a visualization model based on the planning data of the offshore wind power project; the generation module generates initial budget analysis data based on the visualization model; the update module obtains project construction data in real time during the project construction process, updates the visualization model based on the project construction data, and updates the initial budget analysis data based on the project construction data and the visualization model; The construction module builds a visualization model based on the planning data of the offshore wind power project, including: Extract planning data according to pre-configured data extraction templates for each model component and the data extraction rules corresponding to each data extraction template to obtain parameter data corresponding to each model component; According to the parameter data corresponding to each model component, the corresponding model component is retrieved from the pre-configured model library; Splice the retrieved model components to form a visual model; The generation module generates initial budget analysis data based on the visualization model, including: According to the pre-configured model segmentation rules, the visual model is segmented to obtain multiple estimated units; Generate initial analysis data corresponding to each budget estimate unit based on pre-configured budget estimate rules corresponding to each budget estimate unit; Count the initial analysis data corresponding to each budget estimate unit to obtain initial budget estimate analysis data; The update module updates the visual model based on project construction data, including: Perform finite element segmentation on the visual model, dividing the visual model into various finite element units; Determine the corresponding status of each finite element based on the project construction data; Fill the completed finite element units; The update module updates the initial budget analysis data based on project construction data and visualization models, including: Based on the project construction data corresponding to the completed finite element units, actual cost accounting is performed to update the data corresponding to the finite element units in the initial budget analysis data; updating the actual costs of other second related items in the initial budget analysis data based on the actual costs of the first related items belonging to the pre-configured associated cost items in the project construction data; The data of the same unimplemented estimate items in the initial estimate analysis data are updated based on the actual costs of the estimate items that have been incurred in the project construction data.

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