Fabricated building construction management method and system based on BIM

Abstract

The embodiment of the invention relates to the technical field of building construction management, and particularly discloses a fabricated building construction management method and system based on BIM. According to the embodiment of the invention, a design building model is obtained, foundation construction planning is carried out, a plurality of foundation construction stages are determined, and foundation stage data are obtained; carrying out model recording of actual construction, and constructing an actual construction model; marking a current construction stage and current stage data, and performing construction optimization to obtain optimization stage data; planning a plurality of stage tasks, and performing stage construction task management; and a plurality of communication channels are constructed, and stage communication coordination management is carried out. Foundation construction planning can be carried out according to a designed building model, and in the actual construction process, an actual construction model is constructed, the current construction stage is determined, construction optimization is carried out, optimization stage data is obtained, and stage construction task management and stage communication coordination management are carried out according to the optimization stage data. Therefore, efficient, accurate and practical fabricated building construction management is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction project management, and particularly relates to a BIM-based construction management method and system for prefabricated buildings. Background Art

[0002] BIM technology is a data-based technology applied to engineering design and construction management. By establishing a parametric 3D model, the data and information of all parties, all specialties, and all stages involved in a construction project are unified and integrated into a shared platform to achieve effective transmission and sharing of information. The application of BIM technology can improve the design efficiency, construction quality, and safety management level of construction projects, providing strong support for the digital transformation of the construction industry.

[0003] In the prior art, for BIM-based construction management of buildings, the construction of buildings is usually planned according to the designed BIM building model. However, in the actual construction process of buildings, due to various factors during construction, there will be deviations between the actual construction and the designed BIM building model. If the construction management continues according to the designed BIM building model, it is easy to cause construction problems and safety hazards, and it is impossible to achieve efficient, accurate, and practical construction management. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a BIM-based construction management method and system for prefabricated buildings, aiming to solve the problems raised in the background art.

[0005] To achieve the above purpose, the embodiments of the present invention provide the following technical solutions: A BIM-based construction management method for prefabricated buildings, the method specifically includes the following steps: Based on BIM technology, obtain the designed building model, conduct basic construction planning, determine multiple basic construction stages, and obtain the corresponding basic stage data; Based on BIM technology, record the model of actual construction and construct the actual construction model; According to the multiple basic construction stages and the multiple basic stage data, mark the current construction stage and the current stage data, and based on the actual construction model, perform construction optimization to obtain the optimized stage data; According to the optimized stage data, plan multiple stage tasks and conduct stage construction task management; According to the optimized stage data, construct multiple communication channels and conduct stage communication coordination management.

[0006] As a further limitation of the technical solution of the embodiment of the present invention, the steps of obtaining the designed building model based on the BIM technology, performing foundation construction planning, determining multiple foundation construction stages, and obtaining corresponding foundation stage data are specifically as follows: Based on the BIM technology, obtain the designed building model; According to the designed building model, perform foundation construction planning to determine multiple foundation construction stages; Obtain the stage model information corresponding to multiple foundation construction stages from the designed building model; Sort out the multiple stage model information to obtain multiple corresponding foundation stage data.

[0007] As a further limitation of the technical solution of the embodiment of the present invention, the steps of recording the model of the actual construction based on the BIM technology and constructing the actual construction model are specifically as follows: Obtain the three-dimensional construction model of the actual construction; Obtain multiple actual construction information according to multiple preset information nodes; Screen the multiple actual construction information to obtain multiple useful information for construction; Based on the three-dimensional construction model, record the construction of the multiple useful information for construction to generate the actual construction model.

[0008] As a further limitation of the technical solution of the embodiment of the present invention, the steps of marking the current construction stage and the current stage data according to the multiple foundation construction stages and the multiple foundation stage data, performing construction optimization based on the actual construction model, and obtaining the optimized stage data are specifically as follows: Determine the current construction stage according to the multiple foundation construction stages; Select and mark the current stage data corresponding to the current construction stage from the multiple foundation stage data; Based on the actual construction model, identify the deviation of the current stage data to obtain multiple deviation construction data; According to the multiple deviation construction data, perform optimization processing on the current stage data to obtain the optimized stage data.

[0009] As a further limitation of the technical solution of the embodiment of the present invention, the steps of planning multiple stage tasks according to the optimized stage data and performing stage construction task management are specifically as follows: Plan multiple stage tasks according to the optimized stage data; Determine the task responsible objects of the multiple stage tasks; Perform stage construction management on the corresponding stage tasks for the multiple task responsible objects.

[0010] As a further limitation of the technical solution of the embodiment of the present invention, the construction of multiple communication channels according to the optimized stage data and the management of stage communication coordination specifically include the following steps: Determine multiple project coordination objects according to the optimized stage data; Construct multiple communication channels according to the multiple project coordination objects; Through the multiple communication channels, perform stage communication coordination management among the multiple project coordination objects.

[0011] A prefabricated building construction management system based on BIM, the system includes a basic construction planning unit, an actual model construction unit, a construction optimization processing unit, a construction task management unit, and a communication coordination management unit, wherein: The basic construction planning unit is used to obtain the design building model based on BIM technology, perform basic construction planning, determine multiple basic construction stages, and obtain corresponding basic stage data; The actual model construction unit is used to record the model of actual construction based on BIM technology and construct an actual construction model; The construction optimization processing unit is used to mark the current construction stage and the current stage data according to the multiple basic construction stages and the multiple basic stage data, perform construction optimization based on the actual construction model, and obtain optimized stage data; The construction task management unit is used to plan multiple stage tasks according to the optimized stage data and perform stage construction task management; The communication coordination management unit is used to construct multiple communication channels according to the optimized stage data and perform stage communication coordination management.

[0012] As a further limitation of the technical solution of the embodiment of the present invention, the basic construction planning unit specifically includes: The design model acquisition module is used to obtain the design building model based on BIM technology; The basic planning module is used to perform basic construction planning according to the design building model and determine multiple basic construction stages; The model information acquisition module is used to obtain stage model information corresponding to multiple basic construction stages from the design building model; The information sorting module is used to sort the multiple stage model information to obtain multiple corresponding basic stage data.

[0013] As a further limitation of the technical solution of the embodiment of the present invention, the actual model construction unit specifically includes: The three-dimensional model acquisition module is used to obtain the construction three-dimensional model of actual construction; The construction information acquisition module is used to acquire multiple actual construction information according to multiple preset information nodes; The information screening module is used to screen multiple pieces of the actual construction information to obtain multiple pieces of useful information for construction; The construction record module is used to record the construction of multiple pieces of the useful information for construction based on the construction three-dimensional model to generate an actual construction model.

[0014] As a further limitation of the technical solution of the embodiment of the present invention, the communication coordination management unit specifically includes: The object determination module is used to determine multiple project coordination objects according to the optimization stage data; The channel construction module is used to construct multiple communication channels according to multiple project coordination objects; The communication coordination management module is used to perform stage communication coordination management among multiple project coordination objects through multiple communication channels.

[0015] Compared with the prior art, the beneficial effects of the present invention are: In the embodiment of the present invention, by acquiring the designed building model, performing basic construction planning, determining multiple basic construction stages, and acquiring basic stage data; performing model recording of the actual construction, constructing an actual construction model; marking the current construction stage and the current stage data, performing construction optimization, and acquiring optimization stage data; planning multiple stage tasks, performing stage construction task management; constructing multiple communication channels, and performing stage communication coordination management. It is possible to perform basic construction planning according to the designed building model, and during the actual construction process, construct an actual construction model, determine the current construction stage, perform construction optimization, acquire optimization stage data, and perform stage construction task management and stage communication coordination management according to the optimization stage data, so as to achieve efficient, accurate and practical prefabricated building construction management. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention.

[0017] Figure 1 Shows the flowchart of the method provided by the embodiment of the present invention.

[0018] Figure 2 Shows the flowchart of performing basic construction planning in the method provided by the embodiment of the present invention.

[0019] Figure 3 Shows the flowchart of constructing an actual construction model in the method provided by the embodiment of the present invention.

[0020] Figure 4 The flowchart of obtaining data in the optimization phase in the method provided by the embodiment of the present invention is shown.

[0021] Figure 5 The flowchart of performing stage construction task management in the method provided by the embodiment of the present invention is shown.

[0022] Figure 6 The flowchart of performing stage communication coordination management in the method provided by the embodiment of the present invention is shown.

[0023] Figure 7 The application architecture diagram of the system provided by the embodiment of the present invention is shown.

[0024] Figure 8 The structural block diagram of the basic construction planning unit in the system provided by the embodiment of the present invention is shown.

[0025] Figure 9 The structural block diagram of the actual model construction unit in the system provided by the embodiment of the present invention is shown.

[0026] Figure 10 The structural block diagram of the communication coordination management unit in the system provided by the embodiment of the present invention is shown. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] It can be understood that in the prior art, for building construction management based on the BIM technology, usually the construction of a building is planned according to the designed BIM building model. However, during the actual construction of a building, due to various factors in the construction, there will be deviations between the actual construction and the designed BIM building model. If the building construction management continues to be carried out according to the designed BIM building model, it is very easy to cause construction problems and potential safety hazards, and it is impossible to achieve efficient, accurate and practical building construction management.

[0029] To solve the above problems, embodiments of the present invention obtain a designed building model based on BIM technology, perform foundation construction planning, determine multiple foundation construction stages, and obtain corresponding foundation stage data; record the model of the actual construction based on BIM technology to construct an actual construction model; mark the current construction stage and current stage data according to multiple foundation construction stages and multiple foundation stage data, perform construction optimization based on the actual construction model to obtain optimized stage data; plan multiple stage tasks according to the optimized stage data to perform stage construction task management; construct multiple communication channels according to the optimized stage data to perform stage communication coordination management. It can perform foundation construction planning according to the designed building model, construct an actual construction model during the actual construction process, determine the current construction stage, perform construction optimization, obtain optimized stage data, and perform stage construction task management and stage communication coordination management according to the optimized stage data, so as to achieve efficient, accurate and practical prefabricated building construction management.

[0030] Figure 1 The flowchart of the method provided by the embodiments of the present invention is shown.

[0031] Specifically, for the prefabricated building construction management method based on BIM, the method specifically includes the following steps: Step S101, based on BIM technology, obtain a designed building model, perform foundation construction planning, determine multiple foundation construction stages, and obtain corresponding foundation stage data.

[0032] In the embodiments of the present invention, based on BIM technology, a designed building model is obtained. Through the prefabricated foundation construction planning of the designed building model, multiple foundation construction stages are determined. Then, from the designed building model, the stage model information corresponding to multiple foundation construction stages is obtained, and then the multiple stage model information is sorted out to obtain the foundation stage data corresponding to multiple foundation construction stages. Among them, the multiple foundation stage data includes the planning data of construction building components, processes, construction procedures, materials, manpower, equipment, etc. in the corresponding foundation construction stage.

[0033] Specifically, Figure 2 The flowchart of the foundation construction planning in the method provided by the embodiments of the present invention is shown.

[0034] Among them, in the preferred embodiment provided by the present invention, the step of based on BIM technology, obtaining a designed building model, performing foundation construction planning, determining multiple foundation construction stages, and obtaining corresponding foundation stage data specifically includes the following steps: Step S1011, based on BIM technology, obtain a designed building model; Step S1012, according to the designed building model, perform foundation construction planning to determine multiple foundation construction stages; Step S1013: Obtain the stage model information corresponding to multiple basic construction stages from the designed building model; Step S1014: Organize the multiple pieces of stage model information to obtain multiple corresponding basic stage data.

[0035] Specifically, the steps to obtain the stage model information corresponding to multiple basic construction stages from the designed building model are as follows: Determine the key time nodes based on the basic construction plan and generate a time constraint set according to the key time nodes; Divide the building space based on the building model and generate a three-dimensional space grid; Perform parametric vectorization encoding on the three-dimensional space grid to construct a spatial topological relationship graph; Based on the spatial topological relationship graph and combined with the time constraint set, generate a process correlation intensity graph; Perform a conversion operation on the parameters in the time constraint set for frequency domain characteristics to generate spatio-temporal fusion parameters; Obtain the parameter values of the building components based on the building model, perform feature standardization on the parameter values of the building components to obtain the building component features; Use the building component features to establish a feature vector space and generate a standardized component feature matrix; Determine the initial process reference value through past construction records; Perform a spatial adaptability adjustment operation on the initial process reference value using the standardized component feature matrix to obtain a weighted process reference value; Perform time dynamic compensation on the weighted process reference value using the process correlation intensity graph to generate a spatially weighted process reference value; Match the elements in the standardized component feature matrix using the spatially weighted process reference value and generate a preliminary matching result set; Extract all the building components of the current construction stage from the preliminary matching result set; Use all the building components of the current construction stage and combine them with the spatio-temporal fusion parameters to obtain the stage model information corresponding to the basic construction stage, where the stage model information includes a three-dimensional model and construction parameters.

[0036] Furthermore, the BIM-based prefabricated building construction management method further includes the following steps: Step S102: Based on BIM technology, record the model of the actual construction and construct an actual construction model.

[0037] In the embodiments of the present invention, during the actual construction process, according to the construction progress, the three-dimensional model of the building form is recorded to obtain the construction three-dimensional model of the actual construction. Then, according to multiple preset information nodes, construction information is collected to obtain multiple actual construction information, and according to the preset information requirements, redundant information and useless information in the multiple actual construction information are removed, and multiple useful construction information is screened. Furthermore, based on the construction three-dimensional model, according to the positions of the multiple useful construction information in the construction three-dimensional model, the multiple useful construction information is recorded for construction to generate the actual construction model.

[0038] Specifically, Figure 3 Fig. shows the flow chart of constructing the actual construction model in the method provided by the embodiments of the present invention.

[0039] Among them, in the preferred embodiment provided by the present invention, the model record of the actual construction is carried out based on the BIM technology, and the specific steps of constructing the actual construction model are as follows: Step S1021, obtain the construction three-dimensional model of the actual construction; Step S1022, obtain multiple actual construction information according to multiple preset information nodes; Step S1023, screen the multiple actual construction information to obtain multiple useful construction information; Step S1024, based on the construction three-dimensional model, record the multiple useful construction information for construction to generate the actual construction model.

[0040] Specifically, the steps of screening the multiple actual construction information to obtain multiple useful construction information are as follows: Obtain the measured value of the construction parameter from the actual construction information, and obtain the reference value of the construction parameter from the basic construction plan; Calculate the deviation degree of the construction parameter by using the measured value of the construction parameter and the reference value of the construction parameter. The corresponding relationship in the process is: ; Among them, represents the deviation degree of the construction parameter, represents the maximum value of the standard deviation of all parameters, represents the total number of construction types, represents the th type of measured value of the construction parameter, represents the th type of reference value of the construction parameter; Obtain the coordinates of each building node through BIM, and calculate by taking the maximum value using the coordinates of the building node to obtain the maximum correlation strength of the key node; The correlation strength coefficient is obtained by using the maximum correlation strength of key nodes and the reference correlation strength. The corresponding relationship in the process is as follows: ; Among them, represents the correlation strength coefficient, represents the maximum correlation strength of key nodes, represents the reference correlation strength; Based on the current construction stage and the basic construction stage, the progress deviation gradient is obtained, and then the progress sensitivity gain coefficient is obtained by using the progress deviation gradient. The corresponding relationship in the process is as follows: ; Among them, represents the progress sensitivity gain coefficient, represents the dynamic growth factor, represents the progress deviation gradient, represents the planned completion rate, represents the actual completion rate, represents the change value of the construction stage; The information utility index is obtained through the deviation degree of construction parameters, the correlation strength coefficient and the progress deviation gradient. The corresponding relationship in the process is as follows: ; Among them, represents the information utility index; The information utility index is used to screen multiple preset information nodes to obtain multiple actual construction information.

[0041] Furthermore, the BIM-based prefabricated building construction management method further includes the following steps: Step S103: Mark the current construction stage and the current stage data according to the multiple basic construction stages and the multiple basic stage data, and perform construction optimization based on the actual construction model to obtain optimized stage data.

[0042] In the embodiment of the present invention, the current construction stage is determined in real time. From multiple basic construction stages, the current construction stage is determined, and then from multiple basic stage data, the basic stage data corresponding to the current construction stage is selected and marked as the current stage data. According to the actual requirements of the actual construction model, deviation identification is performed on the current stage data to obtain multiple deviation construction data, and then the current stage data is optimized by replacing, adjusting, supplementing, deleting, etc. according to the multiple deviation construction data to generate optimized stage data that meets the requirements of the actual construction model.

[0043] Specifically, Figure 4 shows the flowchart of obtaining optimized stage data in the method provided by the embodiment of the present invention.

[0044] Among them, in the preferred embodiment provided by the present invention, marking the current construction stage and the current stage data according to the multiple basic construction stages and the multiple basic stage data, and performing construction optimization based on the actual construction model to obtain the optimized stage data specifically includes the following steps: Step S1031, determine the current construction stage according to the multiple basic construction stages; Step S1032, select and mark the current stage data corresponding to the current construction stage from the multiple basic stage data; Step S1033, based on the actual construction model, perform deviation identification on the current stage data to obtain multiple deviation construction data; Step S1034, perform optimization processing on the current stage data according to the multiple deviation construction data to obtain the optimized stage data.

[0045] Specifically, based on the actual construction model, performing deviation identification on the current stage data to obtain multiple deviation construction data, the specific steps are as follows: Based on the basic stage data and the current stage data, combine BIM to obtain a coordinate deviation data set; Determine the current construction stage space weight configuration table through the current stage data; Extract the coordinate deviation values of the spatial grid from the coordinate deviation data set, and perform normalization processing on the coordinate deviation values of the spatial grid to obtain the normalized coordinate deviation values; Extract the current stage space weight values from the current stage space weight configuration table, and use the Sigmoid function to process the current stage space weight values to obtain the adjusted space weight values; Use the adjusted space weight values to perform weighted summation on the normalized coordinate deviation values to generate spatial dimension deviation values; Retrieve the planned progress time quantity based on the basic construction stage, and obtain the current planned progress time quantity based on the current stage data; Calculate the planned deviation rate based on the planned progress time quantity and the current planned progress time quantity, and construct a process time sequence feature matrix through the planned deviation rate; Calculate each node in the process time sequence feature matrix to obtain the progress change rate; Perform Fourier transform on the progress change rate to identify the periodic characteristics of the progress fluctuation, and obtain the progress gradient value; Obtain the process parameter values based on the actual construction model, and use the ReLU function to perform deviation screening on the process parameter values to obtain the process deviation values; Construct a three-dimensional calculation coordinate system through the spatial dimension deviation value, progress gradient value, and process deviation value, where the X-axis is the spatial dimension deviation value, the Y-axis is the progress gradient value, and the Z-axis is the process deviation value; Based on the three-dimensional calculation coordinate system, perform spherical coordinate system conversion calculation to obtain a comprehensive deviation value, where the comprehensive deviation value contains multiple deviation construction data.

[0046] Furthermore, the BIM-based prefabricated building construction management method further includes the following steps: Step S104, plan multiple stage tasks according to the optimization stage data, and perform stage construction task management.

[0047] In the embodiment of the present invention, according to the optimization stage data, plan multiple stage tasks in the current construction stage, determine multiple corresponding task responsible objects based on the multiple stage tasks, and then perform stage construction management of the corresponding stage tasks on the multiple task responsible objects to realize the construction use of materials, manpower, and equipment in the current construction stage.

[0048] Specifically, Figure 5 The flowchart of performing stage construction task management in the method provided by the embodiment of the present invention is shown.

[0049] Among them, in the preferred implementation manner provided by the present invention, the step of planning multiple stage tasks according to the optimization stage data and performing stage construction task management specifically includes the following steps: Step S1041, plan multiple stage tasks according to the optimization stage data; Step S1042, determine the task responsible objects of the multiple stage tasks; Step S1043, perform stage construction management of the corresponding stage tasks on the multiple task responsible objects.

[0050] Specifically, the steps of planning multiple stage tasks according to the optimization stage data are as follows: Obtain task nodes through stage data, analyze the dimensional characteristics of each task node to obtain task characteristics; construct a task characteristic matrix based on the task characteristics; Obtain acceptance standard parameters through basic construction planning, and construct a quality evaluation matrix based on the acceptance standard parameters; perform weight update on the task characteristic model through the LSTM neural network model, and at the same time implement weight constraint to obtain a dynamic weight vector; Perform Softmax transformation on each element in the task characteristic matrix to obtain the transformed task characteristics; Use the dynamic weight vector to perform weighted fusion calculation on the transformed task characteristics to obtain a task priority vector; Obtain the actual available resources and the theoretical available resources from the basic construction plan; Calculate based on the actual available resources and the theoretical available resources to obtain a resource ratio vector; Perform a hyperbolic tangent transformation on the resource ratio vector to obtain the transformed ratio vector; Cluster and assign resource type weight values according to the resource types in the basic construction plan; Use the resource type weight values to perform weighted summation on the transformed ratio vector to obtain a resource fitness index; Construct a three-dimensional task-resource association matrix through the task priority vector, resource type clustering, and resource fitness index, where the x-axis is the task priority vector, the y-axis is the resource type clustering, and the z-axis is the resource fitness index; In the three-dimensional task-resource association matrix, calculate the spatial overlap coefficient for each three-dimensional unit to obtain a task-resource coupling tensor; Determine the risk compensation value based on the local environment; Perform dimensionality reduction processing on the task-resource coupling tensor to obtain the dimensionality-reduced resource coupling tensor, and extract the three main components of the dimensionality-reduced resource coupling tensor; Use the three main components and the risk compensation value to perform scalar synthesis calculation to obtain a task planning efficiency index; Finally, use the task planning efficiency index to plan multiple-stage tasks.

[0051] Furthermore, the BIM-based prefabricated building construction management method further includes the following steps: Step S105, construct multiple communication channels according to the optimization stage data for stage communication coordination management.

[0052] In the embodiments of the present invention, according to the optimization stage data, determine multiple project coordination objects in the current construction stage, construct multiple communication channels according to the multiple project coordination objects, and then in the construction management process of the current construction stage, through the multiple communication channels, perform stage communication coordination management among the multiple project coordination objects to achieve reasonable allocation and scheduling of resources such as materials, labor, and equipment, and strengthen communication and coordination among all parties of the project.

[0053] Specifically, Figure 6 Shows the flowchart of stage communication coordination management in the method provided by the embodiments of the present invention.

[0054] Among them, in the preferred embodiment provided by the present invention, the step of constructing multiple communication channels according to the optimization stage data for stage communication coordination management specifically includes the following steps: Step S1051, determine multiple project coordination objects according to the optimization stage data; Step S1052: Construct multiple communication channels based on the multiple project coordination objects. Step S1053: Perform stage communication coordination management among the multiple project coordination objects through the multiple communication channels.

[0055] Furthermore, Figure 7 The application architecture diagram of the system provided by the embodiment of the present invention is shown.

[0056] Among them, in another preferred embodiment provided by the present invention, the BIM-based prefabricated building construction management system includes: The basic construction planning unit 101 is used to obtain the design building model based on BIM technology, perform basic construction planning, determine multiple basic construction stages, and obtain the corresponding basic stage data.

[0057] In the embodiment of the present invention, the basic construction planning unit 101 obtains the design building model based on BIM technology. Through the prefabricated basic construction planning of the design building model, multiple basic construction stages are determined. Then, from the design building model, the stage model information corresponding to the multiple basic construction stages is obtained, and further, the multiple stage model information is sorted out to obtain the basic stage data corresponding to the multiple basic construction stages. Among them, the multiple basic stage data includes the planning data of construction building components, processes, construction procedures, materials, labor, equipment, etc. in the corresponding basic construction stage.

[0058] Specifically, Figure 8 The structural block diagram of the basic construction planning unit 101 in the system provided by the embodiment of the present invention is shown.

[0059] Among them, in the preferred embodiment provided by the present invention, the basic construction planning unit 101 specifically includes: The design model acquisition module 1011 is used to obtain the design building model based on BIM technology; The basic planning module 1012 is used to perform basic construction planning according to the design building model to determine multiple basic construction stages; The model information acquisition module 1013 is used to obtain the stage model information corresponding to the multiple basic construction stages from the design building model; The information sorting module 1014 is used to sort out the multiple stage model information to obtain multiple corresponding basic stage data.

[0060] Furthermore, the BIM-based prefabricated building construction management system further includes: The actual model construction unit 102 is used to record the model of the actual construction based on BIM technology and construct the actual construction model.

[0061] In an embodiment of the present invention, during the actual construction process, the actual model construction unit 102 records the three-dimensional model of the building's form according to the construction progress, obtains the construction three-dimensional model of the actual construction, then collects construction information according to multiple preset information nodes, obtains multiple actual construction information, and filters out redundant and useless information from the multiple actual construction information according to the preset information requirements, and screens out multiple useful construction information. Furthermore, based on the construction three-dimensional model, the actual model construction unit 102 records the construction of the multiple useful construction information according to the positions of the multiple useful construction information in the construction three-dimensional model, and generates the actual construction model.

[0062] Specifically, Figure 9 The structural block diagram of the actual model construction unit 102 in the system provided by the embodiment of the present invention is shown.

[0063] Among them, in the preferred embodiment provided by the present invention, the actual model construction unit 102 specifically includes: A three-dimensional model acquisition module 1021, configured to acquire the construction three-dimensional model of the actual construction; A construction information acquisition module 1022, configured to acquire multiple actual construction information according to multiple preset information nodes; An information screening module 1023, configured to screen the multiple actual construction information to obtain multiple useful construction information; A construction recording module 1024, configured to record the construction of the multiple useful construction information based on the construction three-dimensional model, and generate the actual construction model.

[0064] Furthermore, the BIM-based prefabricated building construction management system further includes: A construction optimization processing unit 103, configured to mark the current construction stage and the current stage data according to the multiple basic construction stages and the multiple basic stage data, and perform construction optimization based on the actual construction model to obtain the optimized stage data.

[0065] In an embodiment of the present invention, the construction optimization processing unit 103 determines the current construction stage in real time, determines the current construction stage from multiple basic construction stages, then selects the basic stage data corresponding to the current construction stage from the multiple basic stage data, and marks it as the current stage data. Deviation identification is performed on the current stage data according to the actual requirements corresponding to the actual construction model to obtain multiple deviation construction data. Furthermore, optimization processing such as replacement, adjustment, supplementation, and deletion is performed on the current stage data according to the multiple deviation construction data to generate optimized stage data that meets the requirements of the actual construction model.

[0066] The construction task management unit 104 is used to plan multiple stage tasks according to the optimized stage data and manage the stage construction tasks.

[0067] In an embodiment of the present invention, the construction task management unit 104 plans multiple stage tasks in the current construction stage according to the optimized stage data, determines multiple corresponding task responsible objects based on the multiple stage tasks, and then conducts stage construction management of the corresponding stage tasks for the multiple task responsible objects, so as to realize the construction use of materials, manpower, and equipment in the current construction stage.

[0068] The communication coordination management unit 105 is used to build multiple communication channels according to the optimized stage data and manage the stage communication coordination.

[0069] In an embodiment of the present invention, the communication coordination management unit 105 determines multiple project coordination objects in the current construction stage according to the optimized stage data, constructs multiple communication channels based on the multiple project coordination objects, and then conducts stage communication coordination management among the multiple project coordination objects through the multiple communication channels during the construction management process of the current construction stage, so as to realize the reasonable allocation and scheduling of resources such as materials, manpower, and equipment, and strengthen the communication and coordination among all parties of the project.

[0070] Specifically, Figure 10 FIG. shows the structural block diagram of the communication coordination management unit 105 in the system provided by the embodiment of the present invention.

[0071] Among them, in the preferred embodiment provided by the present invention, the communication coordination management unit 105 specifically includes: The object determination module 1051 is used to determine multiple project coordination objects according to the optimized stage data; The channel construction module 1052 is used to construct multiple communication channels based on the multiple project coordination objects; The communication coordination management module 1053 is used to conduct stage communication coordination management among the multiple project coordination objects through the multiple communication channels.

[0072] It should be understood that although the steps in the flowcharts of the embodiments of the present invention are shown sequentially according to the indication of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear description in this article, there is no strict order limit for the execution of these steps, and these steps can be executed in other orders. Moreover, at least a part of the steps in each embodiment may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0073] Those of ordinary skill in the art can understand that all or part of the processes of implementing the methods in the above embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the embodiments provided in the present application can include non-volatile and / or volatile memories. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0074] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0075] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent for 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 fall within the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention shall be subject to the appended claims.

[0076] The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A BIM-based construction management method for prefabricated buildings, characterized in that, The method specifically includes the following steps: Based on BIM technology, obtain the designed building model, conduct foundation construction planning, determine multiple foundation construction stages, and obtain the corresponding foundation stage data; Based on BIM technology, record the model of the actual construction and construct the actual construction model; According to the multiple foundation construction stages and the multiple foundation stage data, mark the current construction stage and the current stage data, and perform construction optimization based on the actual construction model to obtain the optimized stage data; According to the optimized stage data, plan multiple stage tasks and conduct stage construction task management; According to the optimized stage data, construct multiple communication channels and conduct stage communication coordination management.

2. The BIM-based prefabricated building construction management method according to claim 1, wherein The step of based on BIM technology, obtaining the designed building model, conducting foundation construction planning, determining multiple foundation construction stages, and obtaining the corresponding foundation stage data specifically includes the following steps: Based on BIM technology, obtain the designed building model; According to the designed building model, conduct foundation construction planning and determine multiple foundation construction stages; From the designed building model, obtain the stage model information corresponding to the multiple foundation construction stages; Sort out the multiple stage model information to obtain multiple corresponding foundation stage data.

3. The BIM-based prefabricated building construction management method according to claim 2, wherein The step of obtaining the stage model information corresponding to the multiple foundation construction stages from the designed building model is specifically as follows: Based on the foundation construction planning, determine the key time nodes and generate a time constraint set according to the key time nodes; Divide the building space based on the building model and generate a three-dimensional space grid; Perform parametric vectorization encoding on the three-dimensional space grid to construct a spatial topology relationship graph; Based on the spatial topology relationship graph and in combination with the time constraint set, generate a process correlation intensity graph; Perform a conversion operation on the parameters in the time constraint set for frequency domain characteristics to generate spatio-temporal fusion parameters; Based on the building model, obtain the parameter values of the building components, perform feature standardization on the parameter values of the building components to obtain the building component features; Use the building component features to establish a feature vector space and generate a standardized component feature matrix; Determine the initial process reference value through past construction records; Perform a spatial adaptability adjustment operation on the initial process reference value using the standardized component feature matrix to obtain a weighted process reference value; Perform time dynamic compensation on the weighted process reference value using the process correlation intensity graph to generate a spatially weighted process reference value; Use the spatially weighted process reference value to match the elements in the standardized component feature matrix and generate a preliminary matching result set; Extract all the building components of the current construction stage from the preliminary matching result set; Use all the building components of the current construction stage and in combination with the spatio-temporal fusion parameters to obtain the stage model information corresponding to the foundation construction stage, where the stage model information includes a three-dimensional model and construction parameters.

4. The BIM-based prefabricated building construction management method according to claim 3, wherein, The step of based on BIM technology, recording the model of the actual construction and constructing the actual construction model specifically includes the following steps: Obtain the construction three-dimensional model of the actual construction; According to multiple preset information nodes, obtain multiple actual construction information; Filter the multiple actual construction information to obtain multiple useful construction information; Based on the construction three-dimensional model, record the construction of multiple pieces of useful information to generate an actual construction model.

5. The BIM-based prefabricated building construction management method according to claim 4, characterized in that Screen multiple pieces of the actual construction information to obtain multiple pieces of useful information. The specific steps are as follows: Obtain the measured values of construction parameters from the actual construction information, and obtain the reference values of construction parameters from the basic construction plan. Calculate the deviation degree of the construction parameters using the measured values and reference values of the construction parameters. The corresponding relationship in the process is: ； Among them, represents the deviation degree of construction parameters, represents the maximum value of the standard deviation of all parameters, represents the total number of construction types, represents the measured value of the th type of construction parameter, represents the reference value of the th type of construction parameter; Obtain the coordinates of each building node through BIM, and calculate the maximum correlation strength of the key nodes by taking the maximum value of the coordinates of the building nodes. Obtain the correlation strength coefficient using the maximum correlation strength of the key nodes and the reference correlation strength. The corresponding relationship in the process is: ； Among them, represents the correlation strength coefficient, represents the maximum correlation strength of the key node, represents the reference correlation strength; Obtain the progress deviation gradient based on the current construction stage and the basic construction stage, and then obtain the progress sensitivity gain coefficient using the progress deviation gradient. The corresponding relationship in the process is: ； Among them, represents the progress-sensitive gain coefficient, represents the dynamic non-growth factor, represents the progress deviation gradient, represents the planned completion rate, represents the actual completion rate, represents the change value in the construction stage; Obtain the information utility index through the deviation degree of the construction parameters, the correlation strength coefficient, and the progress deviation gradient. The corresponding relationship in the process is: ； Among them, represents the information utility index; Use the information utility index to screen multiple preset information nodes to obtain multiple pieces of actual construction information.

6. The BIM-based prefabricated building construction management method according to claim 5, characterized in that, Mark the current construction stage and the current stage data according to multiple basic construction stages and multiple basic stage data, and perform construction optimization based on the actual construction model to obtain the optimized stage data. The specific steps include the following: Determine the current construction stage according to multiple basic construction stages. Select and mark the current stage data corresponding to the current construction stage from multiple basic stage data. Based on the actual construction model, perform deviation identification on the current stage data to obtain multiple pieces of deviation construction data. According to multiple pieces of deviation construction data, perform optimization processing on the current stage data to obtain the optimized stage data.

7. The BIM-based prefabricated building construction management method according to claim 6, wherein Based on the actual construction model, perform deviation identification on the current stage data to obtain multiple pieces of deviation construction data. The specific steps are as follows: Based on the basic stage data and the current stage data, combine BIM to obtain a coordinate deviation data set. Determine the current construction stage spatial weight configuration table through the current stage data. Extract the coordinate deviation values of the spatial grid from the coordinate deviation data set, and perform normalization processing on the coordinate deviation values of the spatial grid to obtain the normalized coordinate deviation values. Extract the current stage spatial weight values from the current stage spatial weight configuration table, and use the Sigmoid function to process the current stage spatial weight values to obtain the adjusted spatial weight values. Use the adjusted spatial weight values to perform weighted summation on the normalized coordinate deviation values to generate spatial dimension deviation values. Retrieve the planned progress time quantity based on the basic construction stage, and obtain the current planned progress time quantity based on the current stage data. Calculate the planned deviation rate based on the planned progress time quantity and the current planned progress time quantity, and construct a process time sequence feature matrix through the planned deviation rate. Calculate each node in the process time sequence feature matrix to obtain the progress change rate. Perform Fourier transform on the progress change rate to identify the periodic characteristics of the progress fluctuation and obtain the progress gradient value. Obtain the process parameter values based on the actual construction model, and use the ReLU function to screen the deviations of the process parameter values to obtain the process deviation values; Construct a three-dimensional calculation coordinate system through the spatial dimension deviation value, the progress gradient value, and the process deviation value, where the X-axis is the spatial dimension deviation value, the Y-axis is the progress gradient value, and the Z-axis is the process deviation value; Based on the three-dimensional calculation coordinate system, perform spherical coordinate transformation calculation to obtain the comprehensive deviation value, where the comprehensive deviation value contains multiple deviation construction data.

8. The BIM-based prefabricated building construction management method according to claim 7, characterized in that, The planning of multiple stage tasks according to the optimization stage data and the management of stage construction tasks specifically include the following steps: Plan multiple stage tasks according to the optimization stage data; Determine the task responsible objects of multiple said stage tasks; Perform stage construction management of corresponding stage tasks for multiple said task responsible objects.

9. The BIM-based prefabricated building construction management method according to claim 8, characterized in that Plan multiple stage tasks according to the optimization stage data, and the specific steps are as follows: Obtain task nodes through stage data, and analyze the dimensional characteristics of each task node to obtain task characteristics; Construct a task feature matrix based on the task characteristics; Obtain acceptance standard parameters through basic construction planning, and construct a quality evaluation matrix based on the acceptance standard parameters; Perform weight update on the task feature model through the LSTM neural network model, and implement weight constraint to obtain a dynamic weight vector; Perform Softmax transformation on each element in the task feature matrix to obtain the transformed task characteristics; Perform weighted fusion calculation on the transformed task characteristics using the dynamic weight vector to obtain a task priority vector; Obtain the actual available resources and the theoretical available resources from the basic construction planning; Calculate based on the actual available resources and the theoretical available resources to obtain a resource ratio vector; Perform hyperbolic tangent transformation on the resource ratio vector to obtain the transformed ratio vector; Cluster and allocate resource type weight values according to the resource types in the basic construction planning; Perform weighted summation on the transformed ratio vector using the resource type weight values to obtain a resource adaptability index; Construct a three-dimensional task-resource association matrix through the task priority vector, resource type clustering, and resource adaptability index, where the x-axis is the task priority vector, the Y-axis is resource type clustering, and the Z-axis is the resource adaptability index; In the three-dimensional task-resource association matrix, calculate the spatial overlap coefficient for each three-dimensional unit to obtain a task-resource coupling tensor; Determine the risk compensation value based on the local environment; Perform dimensionality reduction processing on the task-resource coupling tensor to obtain the dimensionality-reduced resource coupling tensor, and extract the three main components of the dimensionality-reduced resource coupling tensor; Perform scalar synthesis calculation using the three main components and the risk compensation value to obtain a task planning efficiency index; Finally, plan multiple stage tasks using the task planning efficiency index.

10. The BIM-based prefabricated building construction management method according to claim 9, characterized in that The construction of multiple communication channels according to the optimization stage data and the management of stage communication coordination specifically include the following steps: Determine multiple project coordination objects according to the optimization stage data; Construct multiple communication channels according to multiple said project coordination objects; Perform stage communication coordination management among multiple said project coordination objects through multiple said communication channels.

11. An assembly building construction management system based on BIM, characterized in that, The system applies the BIM-based prefabricated building construction management method described in any one of claims 1 to 10. The system includes: A basic construction planning unit, which is used to obtain a design building model based on BIM technology, conduct basic construction planning, determine multiple basic construction stages, and obtain corresponding basic stage data; An actual model construction unit, which is used to record the model of actual construction based on BIM technology and construct an actual construction model; A construction optimization processing unit, which is used to mark the current construction stage and current stage data according to the multiple basic construction stages and the multiple basic stage data, perform construction optimization based on the actual construction model, and obtain optimized stage data; A construction task management unit, which is used to plan multiple stage tasks according to the optimized stage data and conduct stage construction task management; A communication coordination management unit, which is used to construct multiple communication channels according to the optimized stage data and conduct stage communication coordination management.

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