A construction project risk assessment method, system and storage medium

Abstract

The present invention provides a construction project risk assessment method, system, and storage medium. The method includes: determining a real-time construction stage and a real-time stage building digital model; obtaining a historical building digital model library, and determining a historical stage building digital model and a historical construction building digital model based on the real-time construction stage, project type, and the historical building digital model library; determining a real-time construction progress based on the real-time building digital model, the real-time stage building digital model, the historical construction building digital model, and the historical stage building digital model; predicting a construction stage completion time based on the real-time construction progress, and determining whether the construction stage completion time is within a preset completion time range; if not, determining a corresponding historical construction stage completion time based on the real-time construction progress and the real-time building digital model; and assessing project risk based on the historical construction stage completion time and the preset completion time range. The present invention solves the problem that construction project risk assessment methods in the prior art are difficult to accurately judge construction project risks.

Description

Technical Field

[0001] The present invention relates to the technical field of construction management, and in particular to a construction project risk assessment method, system and storage medium. Background Art

[0002] With the continuous development of my country's economy, the construction industry has also experienced rapid growth in recent years, with an increasing number of projects undertaken by the industry in civil, industrial, and urban infrastructure sectors. At the same time, with economic development and scientific and technological advancements, construction projects are gradually becoming larger, more complex, and more diverse, covering an increasingly wide range of fields, such as energy, transportation, water conservancy, and chemical engineering.

[0003] Since most construction projects have complex structures, involve numerous disciplines, and have an intricate construction process, any carelessness can lead to quality problems in the building or even the entire project, ultimately causing rework, project delays, and inability to deliver on time, causing immeasurable losses to the construction unit. Therefore, it is necessary to conduct a full-process risk assessment of the construction project to ensure the smooth progress of the project.

[0004] Existing project risk assessment methods typically rely on experienced staff to compare the real-time on-site construction status with the stage construction status drawings scheduled during the project preparation phase to determine the project progress. They then conduct a risk assessment based on the current project progress and the scheduled time nodes to determine whether the project can be delivered on time. Since the project preparation phase typically only determines the construction status drawings for each construction stage node, it is difficult to accurately determine the true progress of the current project when the real-time construction status is between two stage nodes. Furthermore, due to differences in experience, manual judgment inevitably involves errors and discrepancies. Furthermore, when conducting a risk assessment, the comparison is based solely on the current project progress and the scheduled time nodes, resulting in a single judgment dimension that makes it impossible to accurately determine the risk status of the current construction project, and thus, it is impossible to accurately assess the risk status. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a construction project risk assessment method, system and storage medium, aiming to solve the problem that the construction project risk assessment method in the existing technology is difficult to accurately judge the risk of construction projects.

[0006] A construction project risk assessment method according to an embodiment of the present invention includes:

[0007] Obtaining initial project materials, and determining, based on the initial project materials, each construction stage and an initial stage building digital model corresponding to the construction stage, wherein the initial stage building digital model is a building digital model after the construction stage is completed;

[0008] Acquiring on-site construction data, determining a real-time building digital model based on the on-site construction data, and determining a real-time construction phase and a real-time phase building digital model based on the real-time building digital model, the construction phase, and the initial phase building digital model;

[0009] Acquire a historical building digital model library constructed from historical project materials, and determine a historical stage building digital model and a plurality of historical construction building digital models corresponding to the historical stage building digital models according to the real-time construction stage, the project type, and the historical building digital model library;

[0010] Determining the real-time construction progress based on the correspondence between the real-time building digital model and the real-time stage building digital model and the correspondence between the historical construction building digital model and the historical stage building digital model;

[0011] Predicting the completion time of the current construction phase based on the real-time construction progress, and comparing the completion time of the construction phase with a preset completion time range to determine whether it is within the preset completion time range;

[0012] If not, determining the closest first preset number of historical construction building digital models and the completion time of the historical construction stages corresponding to the historical construction building digital models according to the real-time construction progress and the real-time building digital model;

[0013] The risk of the construction project is assessed based on the completion times of the multiple historical construction stages and the preset completion time range.

[0014] In addition, the construction project risk assessment method according to the above embodiment of the present invention may also have the following additional technical features:

[0015] Furthermore, the step of determining the real-time construction progress according to the correspondence between the real-time building digital model and the real-time stage building digital model and the correspondence between the historical construction building digital model and the historical stage building digital model includes:

[0016] Performing feature extraction on the real-time building digital model and the real-time stage building digital model to respectively determine a first feature parameter and a second feature parameter, and correspondingly matching parameters of the same category in the first feature parameter and the second feature parameter to determine a first mapping relationship set;

[0017] Performing feature extraction on the historical stage building digital model and the historical construction building digital model to respectively determine a third feature parameter and a plurality of fourth feature parameters, and assigning correspondence between the third feature parameter and parameters of the same type among the plurality of fourth feature parameters to determine a plurality of second mapping relationship sets;

[0018] Comparing the first mapping relationship set with the second mapping relationship set to determine a second preset number of second mapping relationship sets with the smallest differences and the historical construction progress corresponding to the second mapping relationship sets;

[0019] The real-time construction progress is determined based on the multiple historical construction progresses.

[0020] Furthermore, the step of determining the closest first preset number of historical construction building digital models and the completion times of historical construction stages corresponding to the historical construction building digital models based on the real-time construction progress and the real-time building digital model includes:

[0021] Determine a historical construction progress within a preset deviation range from the real-time construction progress and the historical construction building digital model corresponding to the historical construction progress;

[0022] Determine the first preset number of historical construction building digital models that have the smallest difference from the real-time building digital model;

[0023] The total construction time of the entire construction phase of the historical construction building digital model is determined, and the completion time of the historical construction phase is determined by subtracting the product of the total construction time and the construction progress from the total construction time.

[0024] Furthermore, the step of assessing the risk of the construction project based on the completion times of the plurality of historical construction stages and the preset completion time range includes:

[0025] Determine a ratio of the completion time of the historical construction phase within the preset completion time range to the completion time of all the historical construction phases as a first evaluation value;

[0026] Determine a ratio of the number of completion times of the historical construction stages to a second preset number as a second evaluation value;

[0027] A target evaluation value is obtained by performing a weighted average calculation on the first evaluation value and the second evaluation value.

[0028] Furthermore, the step of assessing the risk of the construction project based on the completion times of the plurality of historical construction stages and the preset completion time range includes:

[0029] Determining the historical construction stage completion time within the preset completion time range and the historical construction project data corresponding to the historical construction stage completion time, the historical construction project data including at least construction team information, construction project funding information, and construction material supply information;

[0030] Acquiring real-time construction project data, namely, current construction team information, construction project funding information, and construction material supply information;

[0031] determining an adjustment cost and an adjustment time for adjusting the real-time construction project data to the historical construction project data, and performing an assessment based on the project status to determine target construction project data;

[0032] A risk mitigation strategy is determined based on the real-time construction project data and the target construction project data.

[0033] Furthermore, the step of evaluating the project status to determine the target construction project data includes:

[0034] determining a real-time construction efficiency based on the real-time construction progress and the completion time of the construction stage, and determining a historical construction efficiency based on historical construction project data;

[0035] Determining a plurality of pre-selected construction project data according to the real-time construction efficiency, the historical construction efficiency and the adjustment time;

[0036] The pre-selected construction project data with the lowest adjustment cost is determined as the target construction project data.

[0037] Furthermore, the step of constructing the historical building digital model library based on the historical project materials includes:

[0038] Constructing the historical stage digital model based on the historical stage acceptance materials in the historical project materials, and constructing the first on-site digital model based on the historical construction data;

[0039] Adjusting the first on-site digital model according to the historical stage digital model to determine a second on-site digital model;

[0040] Collect feedback information on the second on-site digital model from the historical construction team, and adjust the second on-site digital model according to the feedback information to determine the historical construction building digital model.

[0041] Another object of the present invention is to provide a construction project risk assessment system, the system comprising:

[0042] A phased building digital model determination module is used to obtain initial project materials and determine each construction phase and the initial phase building digital model corresponding to the construction phase based on the initial project materials, wherein the initial phase building digital model is the building digital model after the construction phase is completed;

[0043] a real-time building digital model determination module, configured to obtain on-site construction data, determine the real-time building digital model based on the on-site construction data, and determine the real-time construction stage and real-time stage building digital models based on the real-time building digital model, the construction stage and the initial stage building digital models;

[0044] a historical building digital model determination module, configured to obtain a historical building digital model library constructed from historical project materials, and determine a historical stage building digital model and a plurality of historical construction building digital models corresponding to the historical stage building digital models according to the real-time construction stage, project type, and the historical building digital model library;

[0045] A real-time construction progress determination module is used to determine the real-time construction progress based on the corresponding relationship between the real-time building digital model and the real-time stage building digital model and the corresponding relationship between the historical construction building digital model and the historical stage building digital model;

[0046] A judgment module is used to predict the completion time of the current construction phase based on the real-time construction progress, and compare the completion time of the construction phase with a preset completion time range to determine whether it is within the preset completion time range;

[0047] a retrieval module configured to determine, when the completion time of the construction phase is not within a preset completion time range, based on the real-time construction progress and the real-time building digital model, a first preset number of the closest historical construction building digital models and the historical construction phase completion times corresponding to the historical construction building digital models;

[0048] The risk assessment module is used to assess the risk of the construction project based on the completion time of multiple historical construction stages and the preset completion time range.

[0049] Another object of an embodiment of the present invention is to provide a storage medium having a computer program stored thereon, which implements the steps of the above-mentioned construction project risk assessment method when executed by a processor.

[0050] Another object of an embodiment of the present invention is to provide an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned construction project risk assessment method when executing the program.

[0051] The present invention uses initial project materials to determine the phase building digital models corresponding to each construction phase. Based on real-time on-site construction data, a real-time building digital model is constructed. The real-time building digital model is then retrieved from the initial phase building digital model to determine the corresponding real-time phase building digital model. A historical building digital model library is then retrieved based on objective data such as project type to determine the historical phase digital models and corresponding historical construction building digital models for the same phase. The corresponding relationship between the characteristic parameters of the real-time building digital model and the real-time phase building digital model is compared with the corresponding relationship between the characteristic parameters of the historical construction building digital model and the historical phase digital model to determine one or more closest historical construction building digital models corresponding to the real-time building digital model. Since the construction progress corresponding to the historical construction building digital models is known, the construction progress corresponding to the real-time building digital model can be inferred from the construction progress of the historical construction building digital models, thereby accurately determining the real-time construction progress. The completion time required for the current construction phase is then determined based on the current construction progress and the elapsed time, thereby determining whether the project can be completed within the preset completion time. If so, it indicates that the project is progressing normally, and a normal risk assessment result can be determined. If not, then by comparing historical data, we can determine whether historical construction projects under the same construction conditions can be completed normally, and then use this data to accurately judge the risk status of the current project. For example, if there are a large number of historical construction projects that can be completed normally under the same construction conditions, it means that through reasonable adjustments and responses, the current project risk can be avoided. Compared with the single-dimensional comparison of the construction progress and the preset completion time, it can only determine whether the status quo can be maintained. The project status is constantly changing and can be reasonably adjusted, and thus it is impossible to accurately assess the risk of the current project. Therefore, the present invention solves the problem that the risk assessment method of construction engineering projects in the prior art is difficult to accurately judge the risk of construction engineering projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 Flowchart of the construction project risk assessment method in the first embodiment of the present invention;

[0053] Figure 2 This is a structural block diagram of a construction project risk assessment system in a second embodiment of the present invention;

[0054] Figure 3 is a schematic structural diagram of an electronic device in a third embodiment of the present invention;

[0055] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0056] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0057] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0059] Example 1

[0060] See also Figure 1 , which shows a construction project risk assessment method in a first embodiment of the present invention, and the method specifically includes steps S01 to S07.

[0061] S01, obtaining initial project materials, and determining, based on the initial project materials, each construction stage and an initial stage building digital model corresponding to the construction stage, wherein the initial stage building digital model is the building digital model after the construction stage is completed;

[0062] Specifically, during project bidding and preparation, the construction steps and drawings for each phase will be determined. While the construction drawings provided by different teams may vary, stage-by-stage construction drawings are mandatory according to regulations. Therefore, the corresponding initial building digital model can be constructed based on these stage-by-stage construction drawings. Based on the project materials, the initial building digital model can then be characterized, such as material parameters and physical parameters.

[0063] S02, acquiring on-site construction data, determining a real-time building digital model based on the on-site construction data, and determining a real-time construction stage and a real-time stage building digital model based on the real-time building digital model, the construction stage, and the initial stage building digital model;

[0064] Specifically, during the construction phase, the construction drawings have been determined, and the construction building digital model can be constructed based on the construction drawings. The construction building digital model can then be adjusted through on-site construction pictures to determine the accurate real-time building digital model.

[0065] S03, obtaining a historical building digital model library constructed from historical project materials, and determining a historical stage building digital model and a plurality of historical construction building digital models corresponding to the historical stage building digital models according to the real-time construction stage, project type, and the historical building digital model library;

[0066] Specifically, the step of constructing the historical building digital model library based on the historical project materials includes: constructing the historical stage digital model based on the historical stage acceptance materials in the historical project materials, and constructing a first on-site digital model based on the historical construction data; adjusting the first on-site digital model based on the historical stage digital model to determine the second on-site digital model; adjusting the second on-site digital model based on the feedback information of the historical construction team on the second on-site digital model to determine the historical construction building digital model. When conducting acceptance at each stage, it is necessary to conduct quality inspections on the building. The data from the quality inspections can determine the true and accurate historical stage digital model. However, since there are no clear monitoring and acceptance requirements for the construction conditions between different stages, there may be differences in the historical construction data in different projects. For example, some have intuitive pictures of the building, while others only have text descriptions and records. Therefore, it is necessary to use the historical stage digital model and the historical construction team to adjust and feedback the historical construction building digital model in order to determine the true historical construction building digital model.

[0067] S04, determining the real-time construction progress based on the correspondence between the real-time building digital model and the real-time stage building digital model and the correspondence between the historical construction building digital model and the historical stage building digital model;

[0068] Specifically, feature extraction is performed on the real-time building digital model and the real-time stage building digital model to respectively determine the first feature parameter and the second feature parameter, and the same category parameters in the first feature parameter and the second feature parameter are corresponded to determine a first mapping relationship set; feature extraction is performed on the historical stage building digital model and the historical construction building digital model to respectively determine the third feature parameter and multiple fourth feature parameters, and the same category parameters in the third feature parameter and the multiple fourth feature parameters are corresponded to determine multiple second mapping relationship sets; the first mapping relationship set and the second mapping relationship set are compared to determine a second preset number of the second mapping relationship sets with the smallest difference and the historical construction progress corresponding to the second mapping relationship set; the real-time construction progress is determined based on the multiple historical construction progresses.

[0069] It should be noted that in addition to basic dimensional features, different construction stages of different buildings have their own unique characteristics that represent the completion status of that stage, such as foundation pit excavation and foundation pouring in the foundation construction stage, wall masonry and beam and slab pouring in the main structure construction stage, and differences in construction materials and material usage in different construction stages. By extracting characteristic parameters, comparing the correspondence between the characteristic parameters of the real-time building digital model and the real-time stage building digital model, and then comparing them with a large number of corresponding relationships in historical data, we can determine multiple historical construction progress reports with the smallest correspondence differences. For example, the material ratio of the same material, the ratio of the number of floors, the ratio of the number of foundation pits, etc. in the real-time building digital model and the real-time stage building digital model. In other words, characteristic parameters can be determined according to the project type, and then characteristic parameters can be extracted. In addition, by way of example and not limitation, in an optional embodiment, although existing construction projects have relatively unified specifications or templates for construction methods and objects, it is not unavoidable that some construction projects have less historical data, which affects the accuracy. Therefore, by selecting multiple historical stage building digital models and historical construction building digital models with small differences, and determining the corresponding historical construction progress, and then calculating the variance of the multiple historical construction progresses, the historical construction progress is screened and outliers are removed. Then, the historical construction after the outliers are removed is averaged to obtain an accurate real-time construction progress.

[0070] S05: predicting the completion time of the current construction phase based on the real-time construction progress, and comparing the completion time of the construction phase with a preset completion time range to determine whether it is within the preset completion time range;

[0071] S06, when the completion time of the construction phase is not within the preset completion time range, determining the closest first preset number of historical construction building digital models and the historical construction phase completion times corresponding to the historical construction building digital models based on the real-time construction progress and the real-time building digital model;

[0072] Specifically, determine the historical construction progress within a preset deviation range from the real-time construction progress and the historical construction building digital model corresponding to the historical construction progress; determine the first preset number of historical construction building digital models with the smallest difference from the real-time building digital model; determine the total construction time of the entire construction phase of the historical construction building digital model, and subtract the product of the total construction time and the construction progress from the total construction time to determine the completion time of the historical construction phase.

[0073] S07: Evaluate the risk of the construction project based on the completion times of the multiple historical construction stages and the preset completion time range.

[0074] Specifically, a first evaluation value is determined as the ratio of the historical construction phase completion time within the preset completion time range to all the historical construction phase completion times; a second evaluation value is determined as the ratio of the number of historical construction phase completion times to a second preset number; and a target evaluation value is obtained by performing a weighted average calculation on the first evaluation value and the second evaluation value. By determining whether multiple historical projects with the same conditions can achieve the number and ratio of phase completions within the phase deadline of the current project, the risk status of the current project can be accurately determined, and whether the current project can mitigate the risk through normal adjustments can be determined. However, since the impact on project construction efficiency is determined by multiple factors, if multiple factors of multiple historical projects are compared with the current project in sequence, the data volume will be too large, which will affect the efficiency of risk assessment. In addition, the effects of different factors are difficult to accurately determine, and the types of influencing factors vary from project to project. Therefore, if each factor is analyzed and risk assessed in sequence, the results obtained will be significantly biased. Therefore, judging by the overall ratio and the total number can quickly and accurately determine a risk assessment result that meets the current risk status.

[0075] Furthermore, the step of evaluating the risk of the construction project based on the completion times of multiple historical construction stages and the preset completion time range includes: determining the historical construction project data corresponding to the completion times of the historical construction stages within the preset completion time range, the historical construction project data at least including construction team information, construction project funding information and construction material supply information; obtaining real-time construction project data, that is, the current construction team information, the construction project funding information and the construction material supply information; determining the adjustment cost and adjustment time of the real-time construction project data to the historical construction project data, and evaluating according to the project status to determine the target construction project data; and determining the risk resistance strategy based on the real-time construction project data and the target construction project data.

[0076] Furthermore, the step of evaluating the project status to determine the target construction project data includes: determining the real-time construction efficiency based on the real-time construction progress and the completion time of the construction stage, and determining the historical construction efficiency based on the historical construction project data; determining multiple pre-selected construction project data based on the real-time construction efficiency, historical construction efficiency and the adjustment time; and determining the pre-selected construction project data with the lowest adjustment cost as the target construction project data.

[0077] Specifically, when it is determined that there is a risk of not being completed if the current project remains unchanged, the current construction data can be adjusted by screening historical projects that meet the requirements and their corresponding historical construction data, thereby ensuring risk mitigation. In addition, it is necessary to screen appropriate historical construction data based on project requirements to ensure the lowest adjustment cost. Therefore, by accurately judging the real-time construction progress and determining the accurate risk status of the current project based on historical project data, the current project can be accurately risk assessed. Since the risk assessment is based on the determined risk status, historical projects that are close to and meet the requirements can be determined based on the risk status, and targeted adjustments can be made to the current project based on the historical projects, thereby making it possible to accurately and directly determine effective risk mitigation strategies.

[0078] In summary, the construction project risk assessment method in the above embodiment of the present invention uses initial project materials to determine the stage building digital models corresponding to each construction stage. A real-time building digital model is constructed based on real-time on-site construction data. The real-time building digital model is then retrieved from the initial stage building digital model to determine the corresponding real-time stage building digital model. A historical building digital model library is then retrieved based on objective data such as project type to determine the historical stage digital models and corresponding historical construction building digital models for the same stage. The corresponding relationship between the characteristic parameters of the real-time building digital model and the real-time stage building digital model is compared with the corresponding relationship between the characteristic parameters of the historical construction building digital model and the historical stage digital model to determine one or more closest historical construction building digital models corresponding to the real-time building digital model. Since the construction progress corresponding to the historical construction building digital models is known, the construction progress corresponding to the real-time building digital model can be inferred from the construction progress of the historical construction building digital models, thereby accurately determining the real-time construction progress. The required construction stage completion time for the current construction stage is then determined based on the current construction progress and the time consumed, thereby determining whether the project can be completed within the preset completion time. If so, it indicates that the project is progressing normally, and a normal risk assessment result can be determined. If not, then by comparing historical data, we can determine whether historical construction projects under the same construction conditions can be completed normally, and then use this data to accurately judge the risk status of the current project. For example, if there are a large number of historical construction projects that can be completed normally under the same construction conditions, it means that through reasonable adjustments and responses, the current project risk can be avoided. Compared with the single-dimensional comparison of the construction progress and the preset completion time, it can only determine whether the status quo can be maintained. The project status is constantly changing and can be reasonably adjusted, and thus it is impossible to accurately assess the risk of the current project. Therefore, the present invention solves the problem that the risk assessment method of construction engineering projects in the prior art is difficult to accurately judge the risk of construction engineering projects.

[0079] Example 2

[0080] See also Figure 2 , which is a block diagram of a construction project risk assessment system according to a second embodiment of the present invention, includes: a phased building digital model determination module 210, a real-time building digital model determination module 220, a historical building digital model determination module 230, a real-time construction progress determination module 240, a judgment module 250, a retrieval module 260, and a risk assessment module 270, wherein:

[0081] The phased building digital model determination module 210 is configured to obtain initial project materials and determine, based on the initial project materials, each construction phase and the initial phase building digital model corresponding to the construction phase, wherein the initial phase building digital model is the building digital model after the construction phase is completed;

[0082] The real-time building digital model determination module 220 is configured to obtain on-site construction data, determine the real-time building digital model based on the on-site construction data, and determine the real-time construction stage and real-time stage building digital models based on the real-time building digital model, the construction stage, and the initial stage building digital models;

[0083] The historical building digital model determination module 230 is configured to obtain a historical building digital model library constructed from historical project materials, and determine a historical stage building digital model and a plurality of historical construction building digital models corresponding to the historical stage building digital model according to the real-time construction stage, project type, and the historical building digital model library;

[0084] A real-time construction progress determination module 240 is configured to determine the real-time construction progress based on the correspondence between the real-time building digital model and the real-time stage building digital model and the correspondence between the historical construction building digital model and the historical stage building digital model;

[0085] A judgment module 250 is configured to predict the completion time of the current construction phase based on the real-time construction progress, and compare the completion time of the construction phase with a preset completion time range to determine whether the completion time is within the preset completion time range;

[0086] A search module 260 is configured to determine, when the completion time of the construction phase is not within the preset completion time range, a first preset number of the closest historical construction building digital models and the historical construction phase completion times corresponding to the historical construction building digital models based on the real-time construction progress and the real-time building digital model;

[0087] The risk assessment module 270 is used to assess the risk of the construction project based on the completion time of the multiple historical construction stages and the preset completion time range.

[0088] Furthermore, in other embodiments of the present invention, the real-time construction progress determination module 240 further includes:

[0089] A first mapping relationship set determining unit is configured to perform feature extraction on the real-time building digital model and the real-time stage building digital model to respectively determine a first feature parameter and a second feature parameter, and to correspond parameters of the same category in the first feature parameter and the second feature parameter to determine a first mapping relationship set;

[0090] a second mapping relationship set determining unit, configured to perform feature extraction on the historical stage building digital model and the historical construction building digital model to respectively determine a third feature parameter and a plurality of fourth feature parameters, and to correspond the third feature parameter and parameters of the same type among the plurality of fourth feature parameters to determine a plurality of second mapping relationship sets;

[0091] A historical construction progress determining unit, configured to compare the first mapping relationship set and the second mapping relationship set to determine a second preset number of second mapping relationship sets with the smallest difference and the historical construction progress corresponding to the second mapping relationship sets;

[0092] The real-time construction progress determining unit is used to determine the real-time construction progress according to the multiple historical construction progresses.

[0093] Furthermore, in other embodiments of the present invention, the search module 260 further includes:

[0094] a historical construction building digital model determining unit, configured to determine a historical construction progress within a preset deviation range from the real-time construction progress and the historical construction building digital model corresponding to the historical construction progress;

[0095] a target historical construction building digital model determining unit, configured to determine the first preset number of historical construction building digital models having the smallest difference from the real-time building digital model;

[0096] The historical construction phase completion time determination unit is used to determine the total construction time of the entire construction phase of the historical construction building digital model, and to determine the historical construction phase completion time by subtracting the product of the total construction time and the construction progress from the total construction time.

[0097] Furthermore, in other embodiments of the present invention, the risk assessment module 270 further includes:

[0098] A first evaluation value determining unit is configured to determine a ratio of the completion time of the historical construction phase within the preset completion time range to the completion time of all the historical construction phases as a first evaluation value;

[0099] A second evaluation value determining unit, configured to determine a ratio of the number of completion times of the historical construction stages to a second preset number as a second evaluation value;

[0100] The target evaluation value determining unit is configured to perform weighted average calculation on the first evaluation value and the second evaluation value to obtain a target evaluation value.

[0101] Furthermore, in other embodiments of the present invention, the historical building digital model determination module 230 further includes:

[0102] A first site digital model determining unit, configured to construct the historical stage digital model based on historical stage acceptance materials in the historical project materials, and to construct the first site digital model based on historical construction data;

[0103] a second-site digital-analog determining unit configured to adjust the first-site digital-analog according to the historical stage digital-analog to determine a second-site digital-analog;

[0104] The historical construction building digital model determining unit is used to adjust the second on-site digital model according to the feedback information of the historical construction team on the second on-site digital model to determine the historical construction building digital model.

[0105] Furthermore, in other embodiments of the present invention, the construction project risk assessment system 200 further includes:

[0106] a historical construction project data determination module, configured to determine the completion time of the historical construction phase within the preset completion time range and the historical construction project data corresponding to the completion time of the historical construction phase, wherein the historical construction project data includes at least construction team information, construction project funding information, and construction material supply information;

[0107] A real-time construction project data determination module is used to obtain real-time construction project data, namely, the current construction team information, the construction project funding information and the construction material supply information;

[0108] a target construction project data determination module, configured to determine the necessary cost and time for adjusting the real-time construction project data to the historical construction project data, and to determine the target construction project data by evaluating the project status;

[0109] The risk resistance strategy determination module is used to determine the risk resistance strategy based on the real-time construction project data and the target construction project data.

[0110] Furthermore, in other embodiments of the present invention, the target construction project data determination module further includes:

[0111] a historical construction efficiency determination unit, configured to determine the real-time construction efficiency based on the real-time construction progress and the completion time of the construction phase, and to determine the historical construction efficiency based on historical construction project data;

[0112] a pre-selected construction project data determining unit, configured to determine a plurality of pre-selected construction project data according to the real-time construction efficiency, the historical construction efficiency and the necessary time;

[0113] The target construction project data determining unit is configured to determine the pre-selected construction project data with the lowest necessary cost as the target construction project data.

[0114] The functions or operation steps implemented when the above modules are executed are substantially the same as those in the above method embodiments and will not be repeated here.

[0115] Example 3

[0116] Another aspect of the present invention provides an electronic device, see Figure 3 , shown is a schematic diagram of an electronic device in the third embodiment of the present invention, including a memory 20, a processor 10, and a computer program 30 stored in the memory and executable on the processor. When the processor 10 executes the computer program 30, the construction project risk assessment method as described above is implemented.

[0117] In some embodiments, the processor 10 can be a central processing unit (CPU), a controller, a microcontroller, a microprocessor or other data processing chip, used to run the program code stored in the memory 20 or process data, such as executing access restriction programs.

[0118] Among them, the memory 20 includes at least one type of readable storage medium, and the readable storage medium includes a flash memory, a hard disk, a multimedia card, a card-type memory (for example, an SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the memory 20 can be an internal storage module of an electronic device, such as a hard disk of the electronic device. In other embodiments, the memory 20 can also be an external storage device of an electronic device, such as a plug-in hard disk equipped on the electronic device, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (FlashCard), etc. Furthermore, the memory 20 can also include both an internal storage module of the electronic device and an external storage device. The memory 20 can be used not only to store application software and various types of data of the electronic device, but also to temporarily store data that has been output or is to be output.

[0119] It should be pointed out that Figure 3 The structure shown does not constitute a limitation to the electronic device. In other embodiments, the electronic device may include fewer or more components than shown in the figure, or combine certain components, or arrange the components differently.

[0120] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned construction project risk assessment method.

[0121] Those skilled in the art will appreciate that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device.

[0122] More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic devices), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disc read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering, or processing in another suitable manner as necessary, and then stored in a computer memory.

[0123] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement the hardware: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0124] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0125] The above embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A construction project risk assessment method, characterized in that: The method comprises, Obtaining initial project materials, and determining, based on the initial project materials, each construction stage and an initial stage building digital model corresponding to the construction stage, wherein the initial stage building digital model is a building digital model after the construction stage is completed; Acquiring on-site construction data, determining a real-time building digital model based on the on-site construction data, and determining a real-time construction phase and a real-time phase building digital model based on the real-time building digital model, the construction phase, and the initial phase building digital model; Acquire a historical building digital model library constructed from historical project materials, and determine a historical stage building digital model and a plurality of historical construction building digital models corresponding to the historical stage building digital models according to the real-time construction stage, the project type, and the historical building digital model library; Determining the real-time construction progress based on the correspondence between the real-time building digital model and the real-time stage building digital model and the correspondence between the historical construction building digital model and the historical stage building digital model, this step specifically includes: Performing feature extraction on the real-time building digital model and the real-time stage building digital model to respectively determine a first feature parameter and a second feature parameter, and correspondingly matching parameters of the same category in the first feature parameter and the second feature parameter to determine a first mapping relationship set; Performing feature extraction on the historical stage building digital model and the historical construction building digital model to respectively determine a third feature parameter and a plurality of fourth feature parameters, and assigning correspondence between the third feature parameter and parameters of the same type among the plurality of fourth feature parameters to determine a plurality of second mapping relationship sets; Comparing the first mapping relationship set with the second mapping relationship set to determine a second preset number of second mapping relationship sets with the smallest differences and the historical construction progress corresponding to the second mapping relationship sets; Determine the real-time construction progress according to the plurality of historical construction progresses; The method further comprises: Predicting the completion time of the current construction phase based on the real-time construction progress, and comparing the completion time of the construction phase with a preset completion time range to determine whether it is within the preset completion time range; If not, determining the closest first preset number of historical construction building digital models and the completion time of the historical construction stages corresponding to the historical construction building digital models according to the real-time construction progress and the real-time building digital model; Assessing the risk of the construction project based on the completion times of the multiple historical construction stages and the preset completion time range. This step specifically includes: Determine a ratio of the completion time of the historical construction phase within the preset completion time range to the completion time of all the historical construction phases as a first evaluation value; Determine a ratio of the number of completion times of the historical construction stages to a second preset number as a second evaluation value; A target evaluation value is obtained by performing a weighted average calculation on the first evaluation value and the second evaluation value.

2. The construction project risk assessment method according to claim 1, characterized in that: The step of determining the closest first preset number of historical construction building digital models and the completion time of the historical construction stages corresponding to the historical construction building digital models according to the real-time construction progress and the real-time building digital model comprises: Determine a historical construction progress within a preset deviation range from the real-time construction progress and the historical construction building digital model corresponding to the historical construction progress; Determine the first preset number of historical construction building digital models that have the smallest difference from the real-time building digital model; The total construction time of the entire construction phase of the historical construction building digital model is determined, and the completion time of the historical construction phase is determined by subtracting the product of the total construction time and the construction progress from the total construction time.

3. The construction project risk assessment method according to claim 1, characterized in that: The step of evaluating the risk of the construction project based on the completion time of the plurality of historical construction stages and the preset completion time range includes: Determining the historical construction stage completion time within the preset completion time range and the historical construction project data corresponding to the historical construction stage completion time, the historical construction project data including at least construction team information, construction project funding information, and construction material supply information; Acquiring real-time construction project data, namely, current construction team information, construction project funding information, and construction material supply information; determining an adjustment cost and an adjustment time for adjusting the real-time construction project data to the historical construction project data, and performing an assessment based on the project status to determine target construction project data; A risk mitigation strategy is determined based on the real-time construction project data and the target construction project data.

4. The construction project risk assessment method according to claim 3, characterized in that: The step of evaluating the project status to determine target construction project data includes: determining a real-time construction efficiency based on the real-time construction progress and the completion time of the construction stage, and determining a historical construction efficiency based on historical construction project data; Determining a plurality of pre-selected construction project data according to the real-time construction efficiency, the historical construction efficiency and the adjustment time; The pre-selected construction project data with the lowest adjustment cost is determined as the target construction project data.

5. The construction project risk assessment method according to claim 1, characterized in that: The steps of constructing the historical building digital model library based on the historical project materials include: Constructing the historical stage digital model based on the historical stage acceptance materials in the historical project materials, and constructing the first on-site digital model based on the historical construction data; Adjusting the first on-site digital model according to the historical stage digital model to determine a second on-site digital model; Collect feedback information on the second on-site digital model from the historical construction team, and adjust the second on-site digital model according to the feedback information to determine the historical construction building digital model.

6. A construction project risk assessment system, characterized in that: For implementing the construction project risk assessment method according to any one of claims 1 to 5, the system comprises: A phased building digital model determination module is used to obtain initial project materials and determine each construction phase and the initial phase building digital model corresponding to the construction phase based on the initial project materials, wherein the initial phase building digital model is the building digital model after the construction phase is completed; a real-time building digital model determination module, configured to obtain on-site construction data, determine the real-time building digital model based on the on-site construction data, and determine the real-time construction stage and real-time stage building digital models based on the real-time building digital model, the construction stage and the initial stage building digital models; a historical building digital model determination module, configured to obtain a historical building digital model library constructed from historical project materials, and determine a historical stage building digital model and a plurality of historical construction building digital models corresponding to the historical stage building digital models according to the real-time construction stage, project type, and the historical building digital model library; A real-time construction progress determination module is used to determine the real-time construction progress based on the corresponding relationship between the real-time building digital model and the real-time stage building digital model and the corresponding relationship between the historical construction building digital model and the historical stage building digital model; A judgment module is used to predict the completion time of the current construction phase based on the real-time construction progress, and compare the completion time of the construction phase with a preset completion time range to determine whether it is within the preset completion time range; a retrieval module configured to determine, when the completion time of the construction phase is not within a preset completion time range, based on the real-time construction progress and the real-time building digital model, a first preset number of the closest historical construction building digital models and the historical construction phase completion times corresponding to the historical construction building digital models; The risk assessment module is used to assess the risk of the construction project based on the completion time of multiple historical construction stages and the preset completion time range.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the construction project risk assessment method according to any one of claims 1 to 5 are implemented.

8. An electronic device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor. When the processor executes the program, the method for risk assessment of a construction project as claimed in any one of claims 1 to 5 is implemented.

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