Construction engineering project risk assessment method and system, and storage medium

Abstract

The invention provides a construction engineering project risk assessment method and system and a storage medium. The method comprises the following steps: determining a real-time construction stage and a real-time stage building mathematical model; obtaining a historical building digifax library, and determining a historical stage building digifax and a historical construction building digifax according to the real-time construction stage, the project type and the historical building digifax library; determining a real-time construction progress according to the real-time building digifax, the real-time stage building digifax, the historical construction building digifax and the historical stage building digifax; the construction stage completion time is predicted according to the real-time construction progress, and whether the construction stage completion time is within a preset completion time range or not is judged; if not, the completion time of the corresponding historical construction stage is determined according to the real-time construction progress and the real-time building mathematical model; and evaluating the project risk according to the historical construction stage completion time and a preset completion time range. According to the invention, the problem in the prior art that it is difficult to accurately judge the risk of the constructional engineering project by a constructional engineering project risk assessment method is solved.

Description

Technical Field

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

[0002] With the continuous development of China's economy, the construction industry has also witnessed rapid development in recent years. The projects undertaken by the construction industry in the fields of civil, industrial, urban infrastructure, etc. are increasing continuously. At the same time, with the economic development and the progress of science and technology, construction projects are gradually developing towards the direction of large-scale, complex and diversified, and the involved fields are also becoming more and more extensive, such as energy, transportation, water conservancy, chemical industry, etc.

[0003] Since most of the building structures are relatively complex, involving a wide range of specialties and the construction process is intricate, a slight oversight will bring quality problems to the building or even the entire project, ultimately resulting in project rework, project delay and failure to be delivered on time, bringing inestimable 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] For the existing project risk assessment methods, usually experienced staff judge the project progress by comparing the real-time on-site construction conditions with the pre-determined stage construction condition drawings in the project preparation stage, and then conduct a risk assessment of the project based on the current project progress and the pre-determined time nodes to determine whether the project can be delivered on time. Since only the construction condition drawings of each construction stage node are usually determined in the project preparation stage, it is difficult to accurately judge the real progress of the current project when the real-time construction condition is between two stage nodes. In addition, due to experience differences, there are inevitably errors and differences in manual judgment. Moreover, when conducting risk assessment, only the current project progress and the pre-determined time nodes are compared, and the judgment dimension is single, so it is impossible to accurately determine the risk status of the current construction project, and thus it is impossible to conduct an accurate risk assessment of the risk status. Summary of the Invention

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

[0006] According to a method for risk assessment of a construction project in an embodiment of the present invention, the method includes:

[0007] Obtain initial project materials, and determine each construction stage and the initial stage building digital model corresponding to the construction stage according to the initial project materials, where the initial stage building digital model is the building digital model after the completion of the construction stage;

[0008] Obtain on-site construction data, determine a real-time building digital model according to the on-site construction data, and determine a real-time construction stage and a real-time stage building digital model according to the real-time building digital model, the construction stage, and the initial stage building digital model;

[0009] 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, the project type, and the historical building digital model library;

[0010] Determine the real-time construction progress according to the correspondence relationship between the real-time building digital model and the real-time stage building digital model and the correspondence relationship between the historical construction building digital model and the historical stage building digital model;

[0011] Predict the completion time of the current construction stage according to the real-time construction progress, and compare the construction stage completion time with a preset completion time range to determine whether it is within the preset completion time range;

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

[0013] Evaluate the risks of the construction project according to the plurality of historical construction stage completion times and the preset completion time range.

[0014] In addition, according to a method for evaluating the risks of a construction project according to the above embodiments of the present invention, the following additional technical features may also be provided:

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

[0016] Extract features from 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 correspond the same category parameters in the first feature parameter and the second feature parameter to determine a first mapping relationship set;

[0017] Extract features from 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 correspond the same type parameters in the third feature parameter and the plurality of fourth feature parameters to determine a plurality of second mapping relationship sets;

[0018] Compare the first mapping relationship set and the second mapping relationship set to determine the second preset number of the second mapping relationship sets with the smallest difference degree and the corresponding historical construction progress of the second mapping relationship sets;

[0019] Determine the real-time construction progress based on multiple historical construction progress.

[0020] Further, the step of determining the first preset number of the historical construction building digital models closest to the real-time construction progress and the corresponding historical construction stage completion time according to the real-time construction progress and the real-time building digital model includes:

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

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

[0023] Determine the total construction time of the entire construction stage of the historical construction building digital model, and subtract the product of the total construction time and the construction progress to determine the historical construction stage completion time.

[0024] Further, the step of evaluating the risks of a construction project according to multiple historical construction stage completion times and the preset completion time range includes:

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

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

[0027] Perform a weighted average calculation on the first evaluation value and the second evaluation value to obtain the target evaluation value.

[0028] Further, after the step of evaluating the risks of a construction project according to multiple historical construction stage completion times and the preset completion time range includes:

[0029] Determine the historical construction stage completion times within the preset completion time range and the corresponding historical construction project data, where the historical construction project data at least includes construction team information, construction project fund information, and construction material supply information;

[0030] Obtain the real-time construction project data, that is, the current construction team information, construction project fund information, and construction material supply information;

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

[0032] Determine a risk resistance strategy based on the real-time construction project data and the target construction project data.

[0033] Further, the step of conducting an evaluation based on the project status to determine the target construction project data includes:

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

[0035] Determine multiple preselected construction project data based on the real-time construction efficiency, historical construction efficiency, and the adjustment time;

[0036] Determine the preselected construction project data with the lowest adjustment cost as the target construction project data.

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

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

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

[0040] Collect the feedback information of the historical construction team on the second on-site digital model, 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 risk assessment system for construction engineering projects, and the system includes:

[0042] A stage building digital model determination module, configured to obtain initial project materials, and determine each construction stage and the corresponding initial stage building digital model according to the initial project materials, where the initial stage building digital model is the building digital model after the completion of the construction stage;

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

[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 model according to the real-time construction stage, project type, and the historical building digital model library;

[0045] A real-time construction progress determination module, configured to determine 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;

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

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

[0048] A risk assessment module, configured to assess the risks of a building engineering project according to a plurality of the historical construction stage completion times and the preset completion time range.

[0049] Another object of the embodiments of the present invention is to provide a storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the above-mentioned building engineering project risk assessment method are implemented.

[0050] Another object of the embodiments of the present invention is to provide an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the program, the steps of the above-mentioned building engineering project risk assessment method are implemented.

[0051] In the present invention, through initial project materials, the stage building digital models corresponding to each construction stage are determined. Based on real-time on-site construction data, a real-time building digital model is constructed, and the corresponding real-time stage building digital model is determined by retrieving from the initial stage building digital models according to the real-time building digital model. Then, according to objective data such as project type, the historical building digital model library is retrieved to determine the historical stage digital model and the corresponding historical construction building digital model at the same stage. According to the corresponding relationship of characteristic parameters between the real-time building digital model and the real-time stage building digital model, it is compared with the corresponding relationship of characteristic parameters between the historical construction building digital model and the historical stage digital model, and then one or more historical construction building digital models closest to the real-time building digital model are determined. Since the construction progress corresponding to the historical construction building digital model is determined, the construction progress corresponding to the real-time building digital model can be inferred through the construction progress of the historical construction building digital model, so that the real-time construction progress can be accurately determined. Then, according to the current construction progress and the time consumed, the completion time required for the current construction stage is determined, and then it is judged whether it can be completed within the preset completion time. If it can, it means that the project is proceeding normally, and a normal risk assessment result can be determined. If not, by comparing historical data, the data on whether historical construction projects can be completed normally under the same construction conditions is determined, and then the risk status of the current project can be accurately judged through this data. 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 adjustment and response, the current project risk can be avoided. Therefore, compared with the single-dimensional comparison of only construction progress and preset completion time, which can only determine whether it can be completed by maintaining the status quo, and the project situation is constantly changing and can be reasonably adjusted, it is impossible to accurately assess the risk of the current project. Therefore, the present invention solves the problem that it is difficult to accurately judge the risk of building engineering projects in the existing risk assessment methods for building engineering projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a flowchart of the risk assessment method for building engineering projects in the first embodiment of the present invention;

[0053] Figure 2 It is a structural block diagram of the risk assessment system for building engineering projects in the second embodiment of the present invention;

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

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

[0056] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant accompanying drawings. Several embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0057] It should be noted that when an element is referred to as "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes.

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

[0059] Embodiment 1

[0060] Please refer to Figure 1 , which shows the risk assessment method for construction engineering projects in the first embodiment of the present invention. The method specifically includes steps S01 - S07.

[0061] S01, Obtain the initial project materials, and determine each construction stage and the initial stage building digital model corresponding to the construction stage according to the initial project materials. The initial stage building digital model is the building digital model after the completion of the construction stage;

[0062] Specifically, during project bidding and project preparation, the construction steps and construction drawings of each construction stage will be determined. The construction drawings provided by different teams may vary, but the stage construction drawings will definitely be provided according to regulations. Therefore, the corresponding initial stage building digital model can be constructed through the stage construction drawings, and characteristics, namely material parameters, physical parameters, etc., can be assigned to the initial building digital model according to the project materials.

[0063] S02, Obtain the on-site construction data, determine the real-time building digital model according to the on-site construction data, and determine the real-time construction stage and the real-time stage building digital model according to the real-time building digital model, the construction stage, and the initial stage building digital model;

[0064] Specifically, in the construction stage, the construction drawings have been determined. Based on the construction drawings, a digital model of the construction building can be constructed, and then adjusted according to the on-site construction pictures to determine an accurate real-time digital model of the building.

[0065] S03. 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.

[0066] Specifically, the steps of constructing the historical building digital model library according to the historical project materials include: constructing the historical-stage digital model according to the historical-stage acceptance materials in the historical project materials, and constructing a first on-site digital model according to 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; adjusting 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. During the acceptance of each stage, it is necessary to conduct quality inspections on the building. The true and accurate historical-stage digital model can be determined through the quality inspection data. However, since there is no clear monitoring and acceptance requirement for the construction conditions of the building between different stages, the historical construction data may vary in different projects. For example, some projects have intuitive pictures of the building, while some only have text description records. Therefore, it is necessary to rely on 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. Determine the real-time construction progress according to 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.

[0068] Specifically, feature extraction is performed 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 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 a third feature parameter and a plurality of fourth feature parameters, and the same-kind parameters in the third feature parameter and the plurality of fourth feature parameters are corresponded to determine a plurality of second mapping relationship sets; the first mapping relationship set and the second mapping relationship sets are compared to determine a second preset number of the second mapping relationship sets with the smallest difference degree and the historical construction progress corresponding to the second mapping relationship sets; the real-time construction progress is determined according to the plurality of historical construction progress.

[0069] It should be noted that in addition to the basic dimensional characteristics, different construction stages of different buildings have different characteristic features to represent the completion status of that stage. For example, foundation pit excavation, foundation pouring, etc. in the foundation construction stage, wall masonry, beam and slab pouring, etc. in the main structure construction stage, as well as the differences in construction materials and material usage in different construction stages. By extracting characteristic parameters, comparing the corresponding relationships of characteristic parameters between the real-time building digital model and the real-time stage building digital model, and then comparing with a large number of corresponding relationships in historical data, multiple historical construction progress with the smallest difference in the corresponding relationship can be determined. For example, the material usage ratio, floor number ratio, foundation pit number ratio, etc. of the same material in the real-time building digital model and the real-time stage building digital model. That is, the characteristic parameters can be determined according to the project type, and then the characteristic parameters can be extracted. In addition, by way of example and not limitation, in an optional embodiment, although there are relatively unified specifications or templates for the construction methods and objects of existing construction projects, in order to avoid the influence of less historical data of some construction projects on the accuracy, multiple historical stage building digital models and historical construction building digital models with small differences are selected, and the corresponding historical construction progress is determined. Then, the variance of the multiple historical construction progress is calculated to screen the historical construction progress, remove outliers, and then calculate the average value of the historical construction after removing outliers, so as to obtain the accurate real-time construction progress.

[0070] S05, predict the completion time of the current construction stage according to the real-time construction progress, and compare the completion time of the construction stage 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 stage is not within the preset completion time range, determine the first preset number of the historical construction building digital models closest to the real-time construction progress and the corresponding historical construction stage completion time according to 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 corresponding historical construction building digital model; determine the first preset number of the 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 stage 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 historical construction stage completion time.

[0073] S07, evaluate the risks of the construction project according to the completion times of multiple historical construction stages and the preset completion time range.

[0074] Specifically, determine the ratio of the completion time of the historical construction stage within the preset completion time range to the completion times of all the historical construction stages as the first evaluation value; determine the ratio of the number of the completion times of the historical construction stages to the second preset number as the second evaluation value; perform a weighted average calculation on the first evaluation value and the second evaluation value to obtain the target evaluation value. By determining the quantity and proportion of the stage completions that can be achieved within the stage period of the current project for multiple historical projects in the same situation, the risk status of the current project can be accurately judged, and it can be determined whether the current project can resist risks through normal adjustments. Since the impact on the construction efficiency of the project is determined by multiple factors, if multiple historical projects and the current project are compared factor by factor in sequence, first, there is the problem of excessive data volume, which affects the risk assessment efficiency. In addition, the effects produced by different factors are difficult to accurately determine, and there are also differences in the types of influencing factors in different projects. Therefore, if the analysis and risk assessment are carried out for each factor in sequence, the resulting results will have a large deviation. Therefore, by making a judgment based on the overall ratio and the total quantity, a risk assessment result that conforms to the current risk status can be quickly and accurately determined.

[0075] Further, after the step of evaluating the risks of the construction project according to the completion times of multiple historical construction stages and the preset completion time range, it includes: determining the completion times of the historical construction stages within the preset completion time range and the historical construction project data corresponding to the completion times of the historical construction stages, where the historical construction project data at least includes construction team information, construction project fund information, and construction material supply information; obtaining real-time construction project data, that is, the current construction team information, construction project fund information, and construction material supply information; determining the adjustment cost and adjustment time for adjusting the real-time construction project data to the historical construction project data, and evaluating according to the project situation to determine the target construction project data; determining a risk resistance strategy according to the real-time construction project data and the target construction project data.

[0076] Furthermore, the step of evaluating according to the project situation to determine the target construction project data includes: determining the real-time construction efficiency according to the real-time construction progress and the completion time of the construction stage, and determining the historical construction efficiency according to the historical construction project data; determining multiple preselected construction project data according to the real-time construction efficiency, historical construction efficiency, and the adjustment time; determining the preselected 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 able to complete the current project while maintaining the status quo, by screening historical projects that meet the requirements and their corresponding historical construction data, the current construction data can be adjusted, which can ensure the resistance to risks. In addition, appropriate historical construction data needs to be screened according to the project requirements to ensure the lowest adjustment cost. Therefore, through the accurate judgment of the real-time construction progress and the determination of the accurate risk status of the current project based on historical project data, the risk of the current project can be accurately evaluated. Moreover, since the risk assessment is carried out by determining the risk status, historical projects that are close to and meet the requirements can be determined according to the risk status, and the current project can be adjusted specifically according to the historical projects, so that an effective risk resistance strategy can be accurately and directly determined.

[0078] In summary, in the construction project risk assessment method in the above embodiments of the present invention, through the initial project materials, the stage building digital models corresponding to each construction stage are determined. Then, according to the real-time on-site construction data, a real-time building digital model is constructed, and the corresponding real-time stage building digital model is determined by retrieving from the initial stage building digital models according to the real-time building digital model. Then, according to objective data such as project types, the historical building digital model library is retrieved to determine the historical stage digital models and the corresponding historical construction building digital models in the same stage. And according to the corresponding relationship between the characteristic parameters between the real-time building digital model and the real-time stage building digital model, a comparison is made with the corresponding relationship between the characteristic parameters between the historical construction building digital model and the historical stage digital model, so as to determine one or more historical construction building digital models closest to the real-time building digital model. Since the construction progress corresponding to the historical construction building digital model is determined, the construction progress corresponding to the real-time building digital model can be inferred through the construction progress of the historical construction building digital model, so that the real-time construction progress can be accurately determined. Then, according to the current construction progress and the time consumed, the completion time required for the current construction stage is determined, and then it is judged whether it can be completed within the preset completion time. If it can, it means that the project is proceeding normally, and a normal risk assessment result can be determined. If not, by comparing the historical data, the data on whether the historical construction project can be completed normally under the same construction conditions is determined, and then the risk status of the current project can be accurately judged through this data. 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 adjustment and response, the current project risk can be avoided. Therefore, compared with the single-dimensional comparison of only the construction progress and the preset completion time, which can only determine whether the status quo can be completed, and the project status is constantly changing and can be reasonably adjusted, it is impossible to accurately evaluate the risk of the current project. Therefore, the present invention solves the problem that it is difficult to accurately judge the risk of construction projects in the existing construction project risk assessment methods.

[0079] Embodiment 2

[0080] Please refer to Figure 2 , which shows the structural block diagram of the construction project risk assessment system proposed in the second embodiment of the present invention. The construction project risk assessment system 200 includes: a stage 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, where:

[0081] The stage building digital model determination module 210 is used to obtain initial project materials, and determine each construction stage and the corresponding initial stage building digital model according to the initial project materials. The initial stage building digital model is the building digital model after the completion of the construction stage;

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

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

[0084] The real-time construction progress determination module 240 is used to determine 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;

[0085] The judgment module 250 is used to predict the completion time of the current construction stage according to the real-time construction progress, and compare the construction stage completion time with a preset completion time range to determine whether it is within the preset completion time range;

[0086] The retrieval module 260 is used to, when the construction stage completion time is not within the preset completion time range, determine the closest first preset number of the historical construction building digital models and the corresponding historical construction stage completion times according to the real-time construction progress and the real-time building digital model;

[0087] The risk assessment module 270 is used to assess the risks of the construction project according to multiple historical construction stage completion times 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] The first mapping relationship set determination 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 perform correspondence on the same category parameters in the first feature parameter and the second feature parameter to determine a first mapping relationship set;

[0090] The second mapping relationship set determination unit is 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 perform correspondence on the same type parameters in the third feature parameter and the plurality of fourth feature parameters to determine a plurality of second mapping relationship sets;

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

[0092] The real-time construction progress determination unit is configured to determine the real-time construction progress according to the plurality of historical construction progress.

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

[0094] The historical construction building digital model determination unit is 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] The target historical construction building digital model determination unit is configured to determine a first preset number of the historical construction building digital models with the smallest difference degree from the real-time building digital model;

[0096] The historical construction stage completion time determination unit is configured to determine the total construction time of the entire construction stage 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 historical construction stage completion time.

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

[0098] The first evaluation value determination unit is configured to determine that the ratio of the historical construction stage completion time within the preset completion time range to all the historical construction stage completion times is a first evaluation value;

[0099] The second evaluation value determination unit is configured to determine that the ratio of the number of the historical construction stage completion times to a second preset number is a second evaluation value;

[0100] A target evaluation value determination unit, configured to perform a weighted average calculation on the first evaluation value and the second evaluation value to obtain a target evaluation value.

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

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

[0103] A second on-site digital model determination unit, configured to adjust the first on-site digital model according to the historical stage digital model to determine a second on-site digital model;

[0104] A historical construction building digital model determination unit, configured 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] Further, in other embodiments of the present invention, the building engineering project risk assessment system 200 further includes:

[0106] A historical construction project data determination module, configured to determine 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, where the historical construction project data at least includes construction team information, construction project fund information, and construction material supply information;

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

[0108] A target construction project data determination module, configured to determine the necessary cost and necessary time for adjusting the real-time construction project data to the historical construction project data, and perform an evaluation according to the project status to determine the target construction project data;

[0109] A risk resistance strategy determination module, configured to determine a risk resistance strategy according to the real-time construction project data and the target construction project data.

[0110] Further, 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 according to the real-time construction progress and the construction stage completion time, and determine the historical construction efficiency according to the historical construction project data;

[0112] A preselected construction project data determination unit for determining a plurality of preselected construction project data according to the real-time construction efficiency, historical construction efficiency, and the required time;

[0113] A target construction project data determination unit for determining the preselected construction project data with the lowest required cost as the target construction project data.

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

[0115] Embodiment III

[0116] On the other hand, the present invention also proposes an electronic device. Please refer to Figure 3 , which shows a schematic diagram of the electronic device in the third embodiment of the present invention, including a memory 20, a processor 10, and a computer program 30 stored on the memory and executable on the processor. When the processor 10 executes the computer program 30, the building project risk assessment method as described above is implemented.

[0117] Among them, in some embodiments, the processor 10 may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chips, and is used to run the program code stored in the memory 20 or process data, such as executing an access restriction program, etc.

[0118] Among them, the memory 20 includes at least one type of readable storage medium, and the readable storage medium includes 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. The memory 20 may be an internal storage module of the electronic device in some embodiments, such as the hard disk of the electronic device. The memory 20 may also be an external storage device of the electronic device in other embodiments, such as a plug-in hard disk equipped on the electronic device, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the memory 20 may also include both an internal storage module and an external storage device of the electronic 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 will be output.

[0119] It should be noted that Figure 3 The structure shown does not constitute a limitation on the electronic device. In other embodiments, the electronic device may include fewer or more components than shown, or combine some components, or have different component arrangements.

[0120] An embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the above-mentioned risk assessment method for construction engineering projects is implemented.

[0121] Those skilled in the art can understand that the logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a definite sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or equipment (such as a computer-based system, a system including a processor, or other systems that can fetch instructions from the instruction execution system, device or equipment and execute the instructions), or in combination with these instruction execution systems, devices or equipment. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by or in combination with an instruction execution system, device or equipment.

[0122] More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion (electronic device) having one or more wirings, a portable computer disk cartridge (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation or, if necessary, other suitable processing, and then stored in a computer memory.

[0123] It should be understood that each part of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0124] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0125] The above embodiments only express several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A construction project risk assessment method, characterized in that: The method comprises, Acquire initial project materials, and determine each construction stage and an initial stage building digital model corresponding to the construction stage according to the initial project materials, wherein the initial stage building digital model is the building digital model after the construction stage is completed; Acquire on-site construction data, determine a real-time building digital model according to the on-site construction data, and determine a real-time construction stage and a real-time stage building digital model according to the real-time building digital model, the construction stage and the initial stage 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, project type and the historical building digital model library; Determine the real-time construction progress according to 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; Predicting the completion time of the current construction phase according to 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, determine 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 models; 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.

2. The construction project risk assessment method according to claim 1, characterized in that: 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 comprises: 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 determining a first mapping relationship set by matching the same category parameters in the first feature parameter and the second feature parameter; 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 correspondingly determining a plurality of second mapping relationship sets between the third feature parameter and the same type of parameters among the plurality of fourth feature parameters; Compare the first mapping relationship set with the second mapping relationship set 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 according to the multiple historical construction progresses.

3. 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.

4. The construction project risk assessment method according to claim 1, characterized in that: The step of evaluating the risk of the construction project according to the completion time of the plurality of historical construction stages and the preset completion time range comprises: 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.

5. The construction project risk assessment method according to claim 4 is characterized in that: The step of evaluating the risk of the construction project according to the completion time of the plurality of historical construction stages and the preset completion time range comprises: Determine 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, wherein the historical construction project data at least includes construction team information, construction project funding information and construction material supply information; Acquire real-time construction project data, namely, current construction team information, construction project funding information, and construction material supply information; Determining the adjustment cost and adjustment time of adjusting 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; A risk mitigation strategy is determined based on the real-time construction project data and the target construction project data.

6. The construction project risk assessment method according to claim 5, characterized in that: The step of evaluating the project status to determine the target construction project data includes: Determine the real-time construction efficiency based on the real-time construction progress and the completion time of the construction stage, and determine the historical construction efficiency based on the historical construction project data; Determine 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.

7. The construction project risk assessment method according to claim 1, characterized in that: The steps of constructing the historical building digital model library according to the historical project materials include: Constructing the historical stage digital model according to the historical stage acceptance materials in the historical project materials, and constructing the first on-site digital model according to the historical construction data; The first on-site digital model is adjusted 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.

8. A construction project risk assessment system, characterized in that: Used to implement the construction project risk assessment method according to any one of claims 1 to 7, 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 according to 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 is used to obtain on-site construction data, determine the real-time building digital model according to the on-site construction data, and determine the real-time construction stage and the real-time stage building digital model according to the real-time building digital model, the construction stage and the initial stage building digital model; A historical building digital model determination module is used 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, used to determine the real-time construction progress according to 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, used to predict the completion time of the current construction stage according to the real-time construction progress, and compare the completion time of the construction stage with a preset completion time range to determine whether it is within the preset completion time range; A search module, for determining, when the completion time of the construction phase is not within the preset completion time range, the closest first preset number of historical construction building digital models and the historical construction phase completion time corresponding to the historical construction building digital models according to the real-time construction progress and the real-time building digital model; 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.

9. 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 as described in any one of claims 1 to 7 are implemented.

10. 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 7 is implemented.

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