BIM Technology-Based Building Construction Automation Management System

Abstract

The present invention relates to the technical field of data processing, and particularly relates to a building construction automation management system based on BIM technology, including: obtaining the construction material usage situation in the external construction space and the progress conversion rate of the working hours of workers during the external construction stage; respectively determining the construction similarity degree with the external construction space according to the construction material usage situations of the internal construction space and the external construction space of the target building; converting the progress conversion rate of the working hours of workers in the external construction space by using the construction similarity degree to obtain the progress conversion rate of the working hours of workers in the internal construction space; determining the internal construction progress increment according to the working hours of workers in the internal construction space and the progress conversion rate of the working hours of workers; and updating the BIM model in the system according to the internal construction progress increment. The present invention can ensure the accuracy of the BIM model progress alignment during the internal construction of the building.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and particularly to a building construction automation management system based on BIM technology. Background Art

[0002] BIM is a digital building information management technology based on a three-dimensional model. It integrates multi-dimensional data such as time, cost, and materials, and integrates multi-disciplinary information such as architecture, structure, and mechanical and electrical. It has the characteristics of supporting multi-party collaborative work, reducing construction conflicts and errors, and improving the quality of completion and delivery. It can obtain the progress of the project in real time, objectively, and clearly, bringing significant changes to automation management, efficiency improvement, and cost control.

[0003] Currently, the building construction automation management system compares and synchronizes the construction tasks in the BIM model with the actual construction progress to ensure the consistency between the plan and the execution. It usually takes photos of the construction site regularly by drones, converts the photo information into point cloud data, and then constructs a three-dimensional construction building model to form real-time BIM model progress synchronization.

[0004] However, the construction progress inside the building cannot be aligned through the photos of the construction site, resulting in the misalignment between the BIM model in the building construction automation management system and the actual construction progress, affecting subsequent decisions and reducing the efficiency of automation management. Summary of the Invention

[0005] In order to solve the technical problem that the BIM model in the building construction automation management system cannot be aligned with the actual construction progress, the purpose of the present invention is to provide a building construction automation management system based on BIM technology, and the specific technical solutions adopted are as follows:

[0006] An extraction module, configured to obtain the construction material usage and the progress conversion rate of the working hours of workers in M external construction spaces of the target building in the external construction stage when it is determined that the target building is in the internal construction stage;

[0007] The first internal construction space management module is configured to determine the construction similarity degree between the Hth internal construction space of the target building and the M external construction spaces respectively according to the construction material usage in the Hth internal construction space of the target building and the construction material usage in the M external construction spaces;

[0008] The second internal construction space management module is configured to convert the progress conversion rate of the working hours of workers in the M external construction spaces by using the construction similarity degree between the Hth internal construction space and the M external construction spaces to obtain the progress conversion rate of the working hours of workers in the Hth internal construction space;

[0009] The third management module for the internal construction space is used to determine the internal construction progress increment of the Hth internal construction space according to the working hours of the workers in the Hth internal construction space and the progress conversion rate of the working hours of the workers in the Hth internal construction space;

[0010] The BIM model alignment module is used to update the BIM model corresponding to the target building in the building construction automation management system according to the internal construction progress increment of the Hth internal construction space; where M and H are both positive integers.

[0011] Preferably, according to the construction material usage of the Hth internal construction space of the target building and the construction material usage of the M external construction spaces, the construction similarity degrees of the Hth internal construction space and the M external construction spaces are respectively determined, including:

[0012] According to the construction material usage of the Hth internal construction space of the target building, determine the construction material acquisition ratio corresponding to the Hth internal construction space;

[0013] According to the construction material usage of the Kth external construction space, determine the construction material acquisition ratio corresponding to the Kth external construction space;

[0014] According to the ratio difference between the construction material acquisition ratio corresponding to the Hth internal construction space and the construction material acquisition ratio corresponding to the Kth external construction space, determine the construction similarity degree between the Hth internal construction space and the Kth external construction space; where K is a positive integer.

[0015] Preferably, according to the construction material usage of the Hth internal construction space of the target building, determining the construction material acquisition ratio corresponding to the Hth internal construction space includes:

[0016] Calculate the ratio of the number of times the workers in the Hth internal construction space reach the area where the ith construction material is located to the number of workers in the Hth internal construction space, and obtain the acquisition ratio of the ith construction material corresponding to the Hth internal construction space; where i is a positive integer.

[0017] Preferably, according to the construction material usage of the Kth external construction space, determining the construction material acquisition ratio corresponding to the Kth external construction space includes:

[0018] Calculate the ratio of the number of times the workers in the Kth external construction space reach the area where the ith construction material is located to the number of workers in the Kth external construction space, and obtain the acquisition ratio of the ith construction material corresponding to the Kth external construction space.

[0019] Preferably, the construction similarity degree between the Hth internal construction space and the Kth external construction space is determined according to the ratio difference between the construction material acquisition ratio corresponding to the Hth internal construction space and the construction material acquisition ratio corresponding to the Kth external construction space, including:

[0020] Calculate the ratio differences between the N construction material acquisition ratios corresponding to the Hth internal construction space and the N construction material acquisition ratios corresponding to the Kth external construction space respectively, to obtain the ratio differences of the construction material acquisition ratios corresponding to the N construction materials; where N is a positive integer;

[0021] Perform a summation operation on the ratio differences of the construction material acquisition ratios corresponding to the N construction materials to obtain the total construction difference between the Hth internal construction space and the Kth external construction space;

[0022] Determine the construction similarity degree between the Hth internal construction space and the Kth external construction space according to the total construction difference between the Hth internal construction space and the Kth external construction space.

[0023] Preferably, the determination method of the progress conversion rate of the working hours of the workers in the M external construction spaces includes:

[0024] In the building construction automation management system, obtain the (u - 1)th BIM model and the uth BIM model corresponding to the target building generated at a preset time interval;

[0025] For the M external construction spaces, calculate the volume differences between each external construction space in the (u - 1)th BIM model and each external construction space in the uth BIM model, and determine the progress conversion rate of the working hours of the workers in the M external construction spaces; where u is a positive integer not less than 2.

[0026] Preferably, the construction method of the BIM model corresponding to the target building includes:

[0027] Use a drone to obtain construction site images of different angles of the target building at a preset time interval;

[0028] Construct a BIM model corresponding to the target building according to the construction site images of different angles.

[0029] Preferably, for the M external construction spaces, calculating the volume differences between each external construction space in the (u - 1)th BIM model and each external construction space in the uth BIM model, and determining the progress conversion rate of the working hours of the workers in the M external construction spaces includes: calculating the ratio of the volume difference between the Kth external construction space in the (u - 1)th BIM model and the Kth external construction space in the uth BIM model to the preset time interval, to obtain the progress increment corresponding to the Kth external construction space;

[0030] Calculate the ratio of the progress increment corresponding to the Kth external construction space to the duration of the drone in the Kth external construction space to obtain the progress conversion rate of the worker construction duration of the M external construction spaces.

[0031] Preferably, the method for determining that the target building is in the internal construction stage includes:

[0032] When the progress increments corresponding to the M external construction spaces are all less than the preset threshold, it is determined that the target building is in the internal construction stage;

[0033] Or, when it is determined that the pre-construction area is the Hth internal construction space in the construction plan of the building construction automation management system, it is determined that the target building is in the internal construction stage.

[0034] Preferably, using the construction similarity degree between the Hth internal construction space and the M external construction spaces to convert the progress conversion rate of the worker construction duration of the M external construction spaces to obtain the progress conversion rate of the worker construction duration of the Hth internal construction space, includes:

[0035] Normalize the construction similarity degree between the Hth internal construction space and the Kth external construction space to obtain the normalized construction similarity degree between the Hth internal construction space and the Kth external construction space;

[0036] According to the normalized construction similarity degree between the Hth internal construction space and the Kth external construction space and the progress conversion rate of the worker construction duration of the Kth external construction space, determine the progress conversion rate of the worker construction duration of the Hth internal construction space for the Kth external construction space;

[0037] Perform a summation operation on the progress conversion rates of the worker construction durations of the Hth internal construction space for the M external construction spaces to obtain the progress conversion rate of the worker construction duration of the Hth internal construction space.

[0038] The present invention has the following beneficial effects:

[0039] When it is determined that the target building is in the internal construction stage, obtain the construction material usage of the M external construction spaces and the progress conversion rate of the worker construction duration of the M external construction spaces during the external construction stage of the target building; according to the construction material usage of the H-th internal construction space of the target building and the construction material usage of the M external construction spaces, respectively determine the construction similarity degree between the H-th internal construction space and the M external construction spaces; use the construction similarity degree between the H-th internal construction space and the M external construction spaces to convert the progress conversion rate of the worker construction duration of the M external construction spaces to obtain the progress conversion rate of the worker construction duration of the H-th internal construction space; according to the worker construction duration of the H-th internal construction space and the progress conversion rate of the worker construction duration of the H-th internal construction space, determine the internal construction progress increment of the H-th internal construction space; update the BIM model corresponding to the target building in the building construction automation management system according to the internal construction progress increment of the H-th internal construction space. In this way, the progress conversion rate of the worker construction duration of the internal construction space is effectively determined by using the construction similarity between the internal construction space and the external construction space, and then the progress increment is determined according to the progress conversion rate of the worker construction duration of the internal construction space. After determining the progress increment, the BIM model in the building construction automation management system can be aligned in terms of progress, so that the accuracy of the BIM model progress alignment can also be ensured in the internal construction of the building, which is helpful for subsequent construction decisions and further improves the efficiency of automation management. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0041] Figure 1 Schematic diagram of a building construction automation management system based on BIM technology provided by an embodiment of the present invention;

[0042] Figure 2 Specific flowchart of a method for determining the progress conversion rate of the worker construction duration of M external construction spaces provided by an embodiment of the present invention;

[0043] Figure 3 Specific flowchart of the first management module for the internal construction space provided by an embodiment of the present invention;

[0044] Figure 4 Specific flowchart of the third management module for the internal construction space provided by an embodiment of the present invention. Detailed implementation manners

[0045] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following, in combination with the accompanying drawings and preferred embodiments, will describe in detail a building construction automation management system based on BIM technology according to the present invention, including its specific implementation manners, structures, features, and effects. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs.

[0047] The following will specifically describe the specific solution of a building construction automation management system based on BIM technology provided by the present invention with reference to the accompanying drawings.

[0048] Please refer to Figure 1 , which shows a schematic diagram of a building construction automation management system based on BIM technology provided by an embodiment of the present invention. In an exemplary embodiment, a method for a building construction automation management system based on BIM technology is provided, including:

[0049] An extraction module 110, configured to obtain the construction material usage and the progress conversion rate of the working hours of workers in M external construction spaces during the external construction stage of the target building when it is determined that the target building is in the internal construction stage;

[0050] The first internal construction space management module 120 is configured to respectively determine the construction similarity degree between the H-th internal construction space of the target building and the M external construction spaces according to the construction material usage of the H-th internal construction space of the target building and the construction material usage of the M external construction spaces;

[0051] The second internal construction space management module 130 is configured to use the construction similarity degree between the H-th internal construction space and the M external construction spaces to convert the progress conversion rate of the working hours of workers in the M external construction spaces to obtain the progress conversion rate of the working hours of workers in the H-th internal construction space;

[0052] The third internal construction space management module 140 is configured to determine the internal construction progress increment of the H-th internal construction space according to the working hours of workers in the H-th internal construction space and the progress conversion rate of the working hours of workers in the H-th internal construction space;

[0053] The BIM model alignment module 150 is used to update the BIM model corresponding to the target building in the building construction automation management system according to the internal construction progress increment of the H-th internal construction space; where M and H are both positive integers.

[0054] It should be noted that during the entire building construction process, it is generally divided into an external construction stage and an internal construction stage. Generally speaking, the construction efficiency performance of the same type of construction is less different, and the types of materials consumed by the same type of construction are similar, so it is considered that the types of materials consumed have similar construction types, and the progress changes of the corresponding BIM models are also similar. Due to the similar progress changes of similar construction types, the progress conversion rate of the construction material usage and the worker construction duration in the external construction space can be obtained during the period when the external contour changes greatly. Using the similarity degree of construction between the internal construction space and the external construction space, the progress conversion rate of the worker construction duration in the external construction space is converted to obtain the progress conversion rate of the worker construction duration in the internal construction space. Furthermore, the BIM model is aligned in terms of progress through the progress conversion rate of the worker construction duration in the internal construction space, so as to improve the management efficiency of the building construction automation management system.

[0055] Exemplarily, the target building can be the designated construction target in the construction plan. Generally, the construction plan records information such as the daily pre-construction space, pre-construction duration, construction coordinates, etc., which are not limited here. Further, the construction plan can be pre-saved in the building construction automation management system for subsequent calling when monitoring the working status of the target building. It can be understood that the construction personnel can modify the construction plan in the building construction automation management system according to the actual situation.

[0056] Exemplarily, during the building construction process, the construction material usage is generally determined by positioning the movement trajectory of the workers. The obtained construction material usage can be recorded in the building construction automation management system. Specifically, the movement trajectory includes the areas where the construction materials are located that the workers have been to, and the information such as the number of times the workers go to different areas where the construction materials are located can also be determined by counting the positioning information in the movement trajectory. In this embodiment, RFID tags, Bluetooth beacons, etc. can be placed in the safety helmets of the construction workers. There is a power supply device inside, and signal receiving devices are installed at their respective positions at the construction site. After the workers enter the construction area, trajectory tracking is carried out, and the signal acquisition frequency is kept consistent. And during the construction process of the workers, continuous signal acquisition needs to be maintained, and the acquisition frequency is not less than once per second. Among them, in order to maintain signal reception, signal receivers need to be installed at reasonable positions to ensure that the positioning signals of the construction workers can be obtained throughout the construction process.

[0057] Exemplarily, during the construction process of a building, the external construction stage is usually in the initial stage of construction, and the internal construction stage is usually in the middle and late stages of construction. Therefore, in the initial stage of construction, it is necessary to locate the movement trajectories of workers and collect on-site images of the external building to generate a BIM model through 3D reconstruction of the images of the external construction. In the middle and late stages of construction, if the external construction is completed, only the movement trajectories of workers need to be located.

[0058] Preferably, the method for constructing the BIM model corresponding to the target building includes: using a drone to obtain on-site images of the target building at different angles at preset time intervals; constructing the BIM model corresponding to the target building according to the on-site images at different angles.

[0059] Specifically, after the external construction of the building, photos of the construction site are regularly obtained by using a drone or other means. Among them, the preset time interval can be 2 days. Then, through the on-site images of the target building from multiple angles, key feature points are extracted by using algorithms such as SIFT, and in combination with the algorithm principle of nearest neighbor matching, the nearest neighbor feature points are found using the Euclidean distance to achieve the matching of feature points, thereby generating a sparse point cloud. Furthermore, by using a mathematical interpolation method, such as K-nearest neighbor interpolation, the sparse 3D point cloud is converted into a dense point cloud, and a BIM 3D building model is further generated. It can be understood that after the external construction is completed, there is no need to modify the exterior of the BIM model, and only the internal progress needs to be aligned.

[0060] Furthermore, as Figure 2 shown, the method for determining the progress conversion rate of the construction duration of workers in M external construction spaces includes:

[0061] S210. Obtain the (u - 1)-th BIM model and the u-th BIM model corresponding to the target building generated at preset time intervals in the building construction automation management system;

[0062] S220. For M external construction spaces, calculate the volume difference between each external construction space in the (u - 1)-th BIM model and each external construction space in the u-th BIM model, and determine the progress conversion rate of the construction duration of workers in the M external construction spaces; where u is a positive integer not less than 2.

[0063] Exemplarily, the building construction automation management system obtains on-site images of the construction site at different angles collected by the drone for the (u - 1)-th time, and generates the (u - 1)-th BIM model according to the on-site images at different angles. After a preset time interval, the building construction automation management system obtains on-site images of the construction site at different angles collected by the drone for the u-th time again, and updates the (u - 1)-th BIM model to generate the u-th BIM model according to the on-site images at different angles.

[0064] Optionally, step S220 includes: calculating the ratio of the volume difference between the Kth external construction space in the (u - 1)th BIM model and the Kth external construction space in the uth BIM model to the preset time interval to obtain the progress increment corresponding to the Kth external construction space; calculating the ratio of the progress increment corresponding to the Kth external construction space to the duration of the drone in the Kth external construction space to obtain the progress conversion rate of the construction duration of the workers in the M external construction spaces.

[0065] Specifically, there may be progress increments in multiple external construction spaces of the target building. Therefore, it is necessary to calculate the progress increment for each external construction space separately. The progress increment calculation formula is as follows:

[0066]

[0067] Among them, represents the progress increment corresponding to the Kth external construction space; represents the volume difference between each external construction space in the (u - 1)th BIM model and each external construction space in the uth BIM model; T represents the preset time interval.

[0068]

[0069] Among them, represents the cycle progress conversion rate of the construction duration of the workers in the Kth external construction space; represents the duration of one day in the Kth external construction space during the uth drone shooting. Among them, the duration of one day in the Kth external construction space during the uth drone shooting is the time difference between the time when the workers enter the area and the time when they leave the area.

[0070] Furthermore, since one cycle includes several days, and a progress model that changes daily is required for later estimation, the daily average progress conversion rate is calculated. The formula is as follows:

[0071]

[0072] Among them, represents the daily average progress conversion rate of the construction duration of the workers in the Kth external construction space.

[0073] Exemplarily, since it is necessary to determine the time to enter the internal construction stage during the construction process, preferably, the method for determining that the target building is in the internal construction stage includes: determining that the target building is in the internal construction stage when the progress increments corresponding to the M external construction spaces are all less than the preset threshold; or, determining that the target building is in the internal construction stage when the pre-construction area is determined to be the Hth internal construction space in the construction plan of the building construction automation management system.

[0074] Specifically, if the progress increment of the external construction space is not obvious, it indicates that the external construction stage has basically ended and entered the internal construction stage, and then the UAV is not used to capture the construction site images in the follow-up. In this embodiment, the judgment basis for the progress increment of the external construction space is: normalizing the progress increment corresponding to the external construction space, and determining that the target building is in the internal construction stage when the normalization result is less than a preset threshold (such as 0.01).

[0075] Optionally, in the construction plan, there may be a situation where external and internal construction are carried out simultaneously. At this time, it is also necessary to align the progress of the internal construction space. In this embodiment, it can first be judged whether there is internal construction in the construction plan. If not, it is determined whether it is the internal construction stage by judging the progress increment of the external construction space. This ensures that the internal construction can be aligned in real time, making the aligned BIM model more accurate.

[0076] It should be noted that generally, different construction types consume different building materials. However, in the same building, the materials consumed by the same construction type have certain similarities. For example, when pouring concrete, materials such as cement, aggregates, and water are consumed. Then, when a large amount of materials such as cement, aggregates, and water are consumed during construction, it indicates that the possibility of this construction type being concrete pouring is relatively high. Also, because during the construction process, workers need to travel back and forth between the material storage area to obtain relevant materials, the more consistent the number and types of personnel trajectories going to the material area passing through the construction area, the more similar the material consumption and the construction type are, and thus the progress conversion rate of the construction duration is also the same. Therefore, the first management module of the internal construction space is used to determine the construction similarity degree between the internal construction space and the external construction space.

[0077] Preferably, as Figure 3 shown, according to the construction material usage of the Hth internal construction space of the target building and the construction material usage of the M external construction spaces, the construction similarity degrees between the Hth internal construction space and the M external construction spaces are respectively determined, including:

[0078] S310. Determine the construction material acquisition ratio corresponding to the Hth internal construction space according to the construction material usage of the Hth internal construction space of the target building;

[0079] S320. Determine the construction material acquisition ratio corresponding to the Kth external construction space according to the construction material usage of the Kth external construction space;

[0080] S330. Determine the construction similarity degree between the H-th internal construction space and the K-th external construction space according to the ratio difference between the construction material acquisition ratio corresponding to the H-th internal construction space and the construction material acquisition ratio corresponding to the K-th external construction space; where K is a positive integer.

[0081] Exemplarily, step S310 includes: calculating the ratio of the number of times the workers in the H-th internal construction space reach the area where the i-th construction material is located to the number of workers in the H-th internal construction space, to obtain the acquisition ratio of the i-th construction material corresponding to the H-th internal construction space; where i is a positive integer.

[0082] Specifically, since a positioning device is installed in the safety helmets of the workers, the number of times the workers in the H-th internal construction space reach the area where the i-th construction material is located and the number of workers in the H-th internal construction space can be determined. The formula for the acquisition ratio of the i-th construction material corresponding to the H-th internal construction space is as follows:

[0083]

[0084] Where, represents the acquisition ratio of the i-th construction material corresponding to the H-th internal construction space, represents the number of times the workers in the H-th internal construction space reach the area where the i-th construction material is located, represents the number of workers in the H-th internal construction space.

[0085] Exemplarily, step S320 includes: calculating the ratio of the number of times the workers in the K-th external construction space reach the area where the i-th construction material is located to the number of workers in the K-th external construction space, to obtain the acquisition ratio of the i-th construction material corresponding to the K-th external construction space.

[0086] Specifically, since a positioning device is installed in the safety helmets of the workers, the number of times the workers in the K-th external construction space reach the area where the i-th construction material is located and the number of workers in the K-th external construction space can be determined. The formula for the acquisition ratio of the i-th construction material corresponding to the K-th external construction space is as follows:

[0087]

[0088] Where, represents the acquisition ratio of the i-th construction material corresponding to the K-th external construction space, represents the number of times the workers in the K-th external construction space reach the area where the i-th construction material is located, represents the number of workers in the K-th external construction space.

[0089] Exemplarily, step S330 includes: respectively calculating the ratio differences of the N construction material acquisition ratios corresponding to the H-th internal construction space and the N construction material acquisition ratios corresponding to the K-th external construction space, to obtain the ratio differences of the construction material acquisition ratios corresponding to the N construction materials; where N is a positive integer;

[0090] Performing a summation operation on the ratio differences of the construction material acquisition ratios corresponding to the N construction materials, to obtain the total construction difference between the H-th internal construction space and the K-th external construction space;

[0091] According to the total construction difference between the H-th internal construction space and the K-th external construction space, determining the construction similarity degree between the H-th internal construction space and the K-th external construction space.

[0092] Specifically, since the smaller the ratio difference of the construction material acquisition ratios between the K-th external construction space and the H-th internal construction space, the more similar the construction types, it is necessary to perform similarity comparisons on all N construction materials used in the H-th internal construction space. The specific formula is as follows:

[0093]

[0094] where represents the construction similarity degree between the H-th internal construction space and the K-th external construction space, and N represents the quantity of construction materials.

[0095] Furthermore, in the case of multiple external construction spaces, steps S310 - S330 are respectively used to calculate the construction similarity degrees between this internal construction space and the multiple external construction spaces, to obtain multiple construction similarity degrees. In this way, calculating multiple construction similarity degrees can more accurately calculate the progress conversion rate of the worker construction duration of this internal construction space.

[0096] Furthermore, as Figure 4 shown, using the construction similarity degrees between the H-th internal construction space and the M external construction spaces to convert the progress conversion rates of the worker construction durations of the M external construction spaces, to obtain the progress conversion rate of the worker construction duration of the H-th internal construction space, includes:

[0097] S410. Performing a normalization process on the construction similarity degree between the H-th internal construction space and the K-th external construction space, to obtain the normalized construction similarity degree between the H-th internal construction space and the K-th external construction space;

[0098] S420. Determine the progress conversion rate of the working hours of the Hth internal construction space for the Kth external construction space according to the construction similarity degree between the normalized Hth internal construction space and the Kth external construction space and the progress conversion rate of the working hours of the workers in the Kth external construction space.

[0099] S430. Perform a summation operation on the progress conversion rates of the working hours of the workers in the Hth internal construction space for M external construction spaces to obtain the progress conversion rate of the working hours of the workers in the Hth internal construction space.

[0100] Specifically, by calculating the product of the construction similarity degree between the Hth internal construction space and different external construction spaces and the progress conversion rate of the working hours of the workers in the corresponding external construction space, the progress conversion rate of the working hours of the workers in the Hth internal construction space for different external construction spaces is obtained, so as to evaluate the progress conversion rate of the working hours of the workers in the Hth internal construction space as a whole for different external construction spaces, and improve the accuracy of the progress conversion rate of the working hours of the workers in the Hth internal construction space.

[0101] In this embodiment, the specific formula for the progress conversion rate of the working hours of the workers in the Hth internal construction space is as follows:

[0102]

[0103] Among them, represents the progress conversion rate of the working hours of the workers in the Hth internal construction space; represents the number of external construction spaces. It can be understood that in the case of multiple external construction spaces, it can be considered that each external construction space is sorted; represents the sum of the construction similarity degrees of M external construction spaces; represents the construction similarity degree between the normalized Hth internal construction space and the Kth external construction space; represents the progress conversion rate of the working hours of the workers in the Kth external construction space.

[0104] Furthermore, according to the above steps, the progress conversion rate of the working hours of the workers in the Hth internal construction space is obtained. Therefore, in the third management module of the internal construction space, it is necessary to further determine the internal construction progress increment of the Hth internal construction space to update the BIM model. The specific formula is as follows:

[0105]

[0106] Among them, represents the internal construction progress increment of the jth day of the Hth internal construction space; The progress conversion rate of the construction duration of workers in the H-th internal construction space; The construction duration of workers on the j-th day in the H-th internal construction space.

[0107] Furthermore, after determining the increment of the internal construction progress on the j-th day in the H-th internal construction space, align the progress of the BIM model in the system to ensure the accuracy of the progress alignment of the building's internal construction. At the same time, based on the BIM model with progress alignment, combined with various sensor data and relevant task plans, implement functions including progress management, resource management, quality management, etc., and achieve automated management by integrating technologies such as artificial intelligence to improve the overall construction efficiency.

[0108] It should be noted that the above sequence of the embodiments of the present invention is only for description and does not represent the superiority or inferiority of the embodiments. The processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0109] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

Claims

1. An automated building construction management system based on BIM technology, characterized in that, Including: An extraction module, configured to obtain the construction material usage of M external construction spaces and the progress conversion rate of the worker construction duration of the M external construction spaces when the target building is in the external construction stage, in case it is determined that the target building is in the internal construction stage; A method for determining the progress conversion rate of the worker construction duration of the M external construction spaces, including: Obtaining the (u - 1)-th BIM model and the u-th BIM model corresponding to the target building generated at a preset time interval in the building construction automation management system; For the M external construction spaces, calculating the volume difference between each external construction space in the (u - 1)-th BIM model and each external construction space in the u-th BIM model, and determining the progress conversion rate of the worker construction duration of the M external construction spaces; where u is a positive integer not less than 2; Calculating the ratio of the volume difference between the K-th external construction space in the (u - 1)-th BIM model and the K-th external construction space in the u-th BIM model to the preset time interval, to obtain the progress increment corresponding to the K-th external construction space; Calculating the ratio of the progress increment corresponding to the K-th external construction space to the duration of the drone in the K-th external construction space, to obtain the progress conversion rate of the worker construction duration of the M external construction spaces; An internal construction space first management module, configured to respectively determine the construction similarity degree between the H-th internal construction space of the target building and the M external construction spaces according to the construction material usage of the H-th internal construction space of the target building and the construction material usage of the M external construction spaces; An internal construction space second management module, configured to use the construction similarity degree between the H-th internal construction space and the M external construction spaces to convert the progress conversion rate of the worker construction duration of the M external construction spaces, to obtain the progress conversion rate of the worker construction duration of the H-th internal construction space; performing normalization processing on the construction similarity degree between the H-th internal construction space and the K-th external construction space, to obtain the normalized construction similarity degree between the H-th internal construction space and the K-th external construction space; Determining the progress conversion rate of the worker construction duration of the H-th internal construction space for the K-th external construction space according to the normalized construction similarity degree between the H-th internal construction space and the K-th external construction space and the progress conversion rate of the worker construction duration of the K-th external construction space; Performing a summation operation on the progress conversion rates of the worker construction duration of the H-th internal construction space for the M external construction spaces, to obtain the progress conversion rate of the worker construction duration of the H-th internal construction space; An internal construction space third management module, configured to determine the internal construction progress increment of the H-th internal construction space according to the worker construction duration of the H-th internal construction space and the progress conversion rate of the worker construction duration of the H-th internal construction space; A BIM model alignment module, configured to update the BIM model corresponding to the target building in the building construction automation management system according to the internal construction progress increment of the H-th internal construction space; where M and H are both positive integers.

2. The building construction automation management system based on BIM technology according to claim 1, characterized in that, Determine the construction similarity degrees of the H-th internal construction space and the M external construction spaces of the target building respectively according to the construction material usage of the H-th internal construction space and the construction material usage of the M external construction spaces, including: Determine the construction material acquisition ratio corresponding to the H-th internal construction space according to the construction material usage of the H-th internal construction space of the target building; Determine the construction material acquisition ratio corresponding to the K-th external construction space according to the construction material usage of the K-th external construction space; Determine the construction similarity degree between the H-th internal construction space and the K-th external construction space according to the ratio difference between the construction material acquisition ratio corresponding to the H-th internal construction space and the construction material acquisition ratio corresponding to the K-th external construction space; where K is a positive integer.

3. The building construction automation management system based on BIM technology according to claim 2, wherein Determine the construction material acquisition ratio corresponding to the H-th internal construction space according to the construction material usage of the H-th internal construction space of the target building, including: Calculate the ratio of the number of times the workers in the H-th internal construction space reach the area where the i-th construction material is located to the number of workers in the H-th internal construction space, and obtain the acquisition ratio of the i-th construction material corresponding to the H-th internal construction space; where i is a positive integer.

4. The building construction automation management system based on BIM technology according to claim 2, characterized in that, Determine the construction material acquisition ratio corresponding to the K-th external construction space according to the construction material usage of the K-th external construction space, including: Calculate the ratio of the number of times the workers in the K-th external construction space reach the area where the i-th construction material is located to the number of workers in the K-th external construction space, and obtain the acquisition ratio of the i-th construction material corresponding to the K-th external construction space.

5. The building construction automation management system based on BIM technology according to claim 2, wherein Determine the construction similarity degree between the H-th internal construction space and the K-th external construction space according to the ratio difference between the construction material acquisition ratio corresponding to the H-th internal construction space and the construction material acquisition ratio corresponding to the K-th external construction space, including: Calculate the ratio differences between the acquisition ratios of the N construction materials corresponding to the H-th internal construction space and the acquisition ratios of the N construction materials corresponding to the K-th external construction space respectively, and obtain the ratio differences of the acquisition ratios of the N construction materials; where N is a positive integer; Perform a summation operation on the ratio differences of the acquisition ratios of the N construction materials to obtain the total construction difference between the H-th internal construction space and the K-th external construction space; Determine the construction similarity degree between the H-th internal construction space and the K-th external construction space according to the total construction difference between the H-th internal construction space and the K-th external construction space.

6. The building construction automation management system based on BIM technology according to claim 1, characterized in that, The method for constructing the BIM model corresponding to the target building includes: Use a drone to obtain on-site construction images of the target building from different angles at preset time intervals; Construct the BIM model corresponding to the target building according to the on-site construction images from different angles.

7. The building construction automation management system based on BIM technology according to claim 1, characterized in that, The method for determining that the target building is in the internal construction stage includes: Determine that the target building is in the internal construction stage when the progress increments corresponding to the M external construction spaces are all less than a preset threshold; Or, determine that the target building is in the internal construction stage when the pre-construction area is determined to be the H-th internal construction space in the construction plan of the construction automation management system for the building.

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