Building construction automatic management system based on BIM technology

Abstract

The invention relates to the technical field of data processing, in particular to a building construction automatic management system based on a BIM technology, and the system comprises the steps: obtaining the construction material use condition of an external construction space in an external construction stage and the progress conversion rate of the construction duration of a worker; according to the use conditions of construction materials of the internal construction space and the external construction space of the target building, the construction similarity degrees of the internal construction space and the external construction space are determined; converting the progress conversion rate of the construction duration of the worker in the external construction space by utilizing the construction similarity degree to obtain the progress conversion rate of the construction duration of the worker in the internal construction space; determining an internal construction progress increment according to the worker construction duration of the internal construction space and the progress conversion rate of the worker construction duration; and updating the BIM model in the system according to the internal construction progress increment. According to the method, the accuracy of BIM model progress alignment can be ensured during building internal construction.

Description

Technical Field

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

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

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

[0004] However, the construction progress of the building's internal construction cannot be aligned with photos of the construction site, which makes it impossible to align the BIM model in the building construction automation management system with the actual construction progress, affecting subsequent decision-making and reducing the efficiency of automated 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. The technical solution adopted is as follows: An extraction module is used to obtain the construction material usage of M external construction spaces and the progress conversion rate of the construction time of the workers in the M external construction spaces when the target building is in the external construction stage when it is determined that the target building is in the internal construction stage; The first internal construction space management module is used to determine the construction similarity between the Hth internal construction space and the Mth external construction space according to the construction material usage of the Hth internal construction space and the construction material usage of the Mth external construction space of the target building; The second management module of the internal construction space is used to convert the progress conversion rate of the construction time of the workers of the M external construction spaces by using the construction similarity between the Hth internal construction space and the M external construction spaces, so as to obtain the progress conversion rate of the construction time of the workers of the Hth internal construction space; The third internal construction space management module is used to determine the internal construction progress increment of the Hth internal construction space according to the construction time of the workers in the Hth internal construction space and the progress conversion rate of the construction time of the workers in the Hth internal construction space; 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; wherein M and H are both positive integers.

[0006] Preferably, according to the construction material usage of the Hth internal construction space and the construction material usage of the M external construction spaces of the target building, the construction similarity of the Hth internal construction space and the M external construction spaces is determined respectively, including: According to the usage of construction materials in the Hth internal construction space of the target building, determine the construction material acquisition ratio corresponding to the Hth internal construction space; According to the usage of construction materials in the Kth external construction space, determine the construction material acquisition ratio corresponding to the Kth external construction space; The degree of construction similarity between the Hth internal construction space and the Kth external construction space is determined based on the difference in the proportion of construction material acquisition corresponding to the Hth internal construction space and the proportion of construction material acquisition corresponding to the Kth external construction space; wherein K is a positive integer.

[0007] Preferably, according to the usage of construction materials in the Hth internal construction space of the target building, determining the construction material acquisition ratio corresponding to the Hth internal construction space includes: Calculate the ratio of the number of times the workers in the Hth internal construction space reach the area where the i-th construction material is located to the number of workers in the Hth internal construction space, and obtain the i-th construction material acquisition ratio corresponding to the Hth internal construction space; where i is a positive integer.

[0008] Preferably, determining the construction material acquisition ratio corresponding to the Kth external construction space according to the construction material usage of the Kth external construction space includes: Calculate the ratio of the number of times the workers in the Kth external construction space reach the area where the i-th construction material is located to the number of workers in the Kth external construction space, and obtain the acquisition ratio of the i-th construction material corresponding to the Kth external construction space.

[0009] Preferably, determining the construction similarity between the Hth internal construction space and the Kth external construction space according to the 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 includes: Calculate the differences between the proportions of N construction materials obtained in the Hth internal construction space and the proportions of N construction materials obtained in the Kth external construction space to obtain the differences in the proportions of N construction materials obtained; wherein N is a positive integer; The proportion differences of the construction material acquisition proportions corresponding to the N types of construction materials are summed up to obtain the total construction difference 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, the construction similarity between the Hth internal construction space and the Kth external construction space is determined.

[0010] Preferably, the method for determining the progress conversion rate of the construction time of workers in the M external construction spaces includes: Obtaining the u-1th BIM model and the uth 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, the volume difference between each external construction space in the u-1th BIM model and each external construction space in the uth BIM model is calculated to determine the progress conversion rate of the workers' construction time for the M external construction spaces; where u is a positive integer not less than 2.

[0011] Preferably, the method for constructing the BIM model corresponding to the target building includes: Use drones to obtain construction site images of target buildings from different angles at preset time intervals; Based on the construction site images from different angles, a BIM model corresponding to the target building is constructed.

[0012] Preferably, for the M external construction spaces, the volume difference between each external construction space in the u-1th BIM model and each external construction space in the u-th BIM model is calculated, and the progress conversion rate of the workers' construction time of the M external construction spaces is determined, including: calculating the volume difference between the Kth external construction space in the u-1th BIM model and the Kth external construction space in the u-th BIM model, and the ratio of the volume difference to the preset time interval to obtain the progress increment corresponding to the Kth external construction space; The ratio of the progress increment corresponding to the Kth external construction space to the duration that the drone is in the Kth external construction space is calculated to obtain the progress conversion rate of the workers' construction duration in the M external construction spaces.

[0013] Preferably, the method for determining that the target building is in the internal construction stage comprises: 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; Or, the pre-construction area is determined as the Hth internal construction space in the construction plan in the building construction automation management system, and the target building is determined to be in the internal construction stage.

[0014] Preferably, the progress conversion rate of the construction time of the workers in the M external construction spaces is converted by utilizing the construction similarity between the Hth internal construction space and the M external construction spaces to obtain the progress conversion rate of the construction time of the workers in the Hth internal construction space, including: Normalizing the construction similarity between the Hth internal construction space and the Kth external construction space to obtain the normalized construction similarity between the Hth internal construction space and the Kth external construction space; According to the normalized construction similarity between the Hth internal construction space and the Kth external construction space and the progress conversion rate of the construction time of the workers in the Kth external construction space, determine the progress conversion rate of the construction time of the workers in the Hth internal construction space for the Kth external construction space; The progress conversion rates of the construction time of the workers in the Hth internal construction space of the M external construction spaces are summed up to obtain the progress conversion rate of the construction time of the workers in the Hth internal construction space.

[0015] The present invention has the following beneficial effects: When it is determined that the target building is in the internal construction stage, the construction material usage of M external construction spaces and the progress conversion rate of the workers' construction time of the M external construction spaces when the target building is in the external construction stage are obtained; according to the construction material usage of the Hth internal construction space and the construction material usage of the M external construction spaces of the target building, the construction similarity between the Hth internal construction space and the M external construction spaces is determined respectively; using the construction similarity between the Hth internal construction space and the M external construction spaces, the progress conversion rate of the workers' construction time of the M external construction spaces is converted to obtain the progress conversion rate of the workers' construction time of the Hth internal construction space; according to the workers' construction time of the Hth internal construction space and the progress conversion rate of the workers' construction time of the Hth internal construction space, the internal construction progress increment of the Hth internal construction space is determined; according to the internal construction progress increment of the Hth internal construction space, the BIM model corresponding to the target building in the building construction automation management system is updated. In this way, the construction similarity between the internal construction space and the external construction space can be used to effectively determine the progress conversion rate of the construction time of the workers in the internal construction space, and then the progress increment can be determined according to the progress conversion rate of the construction time of the workers in the internal construction space. After determining the progress increment, the BIM model in the building construction automation management system can be aligned with the progress, so that the internal construction of the building can also ensure the accuracy of the BIM model progress alignment, which will help subsequent construction decisions and thus improve the efficiency of automation management. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a building construction automation management system based on BIM technology according to an embodiment of the present invention; Figure 2 A schematic diagram of a specific flow chart of a method for determining a progress conversion rate of construction time of workers in M ​​external construction spaces provided in one embodiment of the present invention; Figure 3 A schematic diagram of a specific process flow of a first management module for an internal construction space provided in one embodiment of the present invention; Figure 4 A schematic diagram of a specific flow chart of the third management module of the internal construction space provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is combined with the accompanying drawings and preferred embodiments to propose a construction automation management system based on BIM technology according to the present invention, and its specific implementation method, structure, characteristics and effects are described in detail as follows. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0019] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0020] The specific scheme of the building construction automation management system based on BIM technology provided by the present invention is described in detail below with reference to the accompanying drawings.

[0021] See also Figure 1 , which shows a schematic diagram of a construction automation management system based on BIM technology according to an embodiment of the present invention. In an exemplary embodiment, a construction automation management system method based on BIM technology is provided, including: The extraction module 110 is used to obtain the construction material usage of M external construction spaces and the progress conversion rate of the construction time of the workers in the M external construction spaces when the target building is in the external construction stage when it is determined that the target building is in the internal construction stage; The first internal construction space management module 120 is used to determine the construction similarity between the Hth internal construction space and the M external construction spaces according to the construction material usage of the Hth internal construction space and the construction material usage of the M external construction spaces of the target building; The second internal construction space management module 130 is used to convert the progress conversion rate of the construction time of the workers of the M external construction spaces by using the construction similarity between the Hth internal construction space and the M external construction spaces, so as to obtain the progress conversion rate of the construction time of the workers of the Hth internal construction space; The third internal construction space management module 140 is used to determine the internal construction progress increment of the Hth internal construction space according to the construction time of the workers in the Hth internal construction space and the progress conversion rate of the construction time of the workers in the Hth internal construction space; 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 Hth internal construction space; wherein M and H are both positive integers.

[0022] It should be noted that the entire construction process 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 relatively small, and the types of materials consumed by the same type of construction are similar. Therefore, it is believed that the types of materials consumed have similar construction types, and the corresponding BIM model progress changes are also similar. Since similar construction types have similar progress changes, the use of construction materials in the external construction space and the progress conversion rate of the workers' construction time in the external construction space can be obtained during the period when the external contour changes greatly. By using the degree of construction similarity between the internal construction space and the external construction space, the progress conversion rate of the workers' construction time in the external construction space is converted to obtain the progress conversion rate of the workers' construction time in the internal construction space. Then, the progress of the BIM model is aligned through the progress conversion rate of the workers' construction time in the internal construction space to improve the management efficiency of the building construction automation management system.

[0023] Exemplarily, the target building may be a designated construction target in a construction plan, which generally records information such as daily pre-construction space, pre-construction duration, and construction coordinates, which are not limited here. Furthermore, the construction plan may be pre-saved in the building construction automation management system so that it can be called when the working status of the target building is subsequently monitored. It is understandable that the construction personnel may modify the construction plan in the building construction automation management system according to actual conditions.

[0024] Exemplarily, during the construction process, the use of construction materials is generally determined by locating the movement trajectory of the workers, and the obtained use of construction materials can be recorded in the construction automation management system. Specifically, the movement trajectory includes the areas where the construction materials have been visited by the workers, and the number of times the workers have visited 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, and there is a power supply device inside. Signal receiving devices are installed at respective positions on the construction site. After the workers enter the construction area, the trajectory is tracked. The frequency of signal acquisition remains consistent, and the workers need to maintain continuous signal acquisition during the construction process, and the acquisition frequency is not less than once per second. In order to maintain signal reception, it is necessary to install a signal receiver at a reasonable position to ensure that the positioning signal of the construction workers can be obtained throughout the construction process.

[0025] For example, in the process of building construction, the external construction stage is usually in the early stage of construction, and the internal construction stage is usually in the middle and late stages of construction. Therefore, in the early stage of construction, it is necessary to locate the movement trajectory of workers, and it is also necessary to collect construction site images of external buildings to generate BIM models by 3D reconstruction of the images of external construction. In the middle and late stages of construction, if the external construction is completed, it is only necessary to locate the movement trajectory of workers.

[0026] Preferably, the method for constructing a BIM model corresponding to a target building includes: using a drone to obtain construction site images of the target building at different angles at preset time intervals; and constructing a BIM model corresponding to the target building based on the construction site images at different angles.

[0027] Specifically, after the exterior construction of the building is completed, photos of the construction site are obtained regularly by means of drones, etc., wherein the preset time interval can be 2 days. Then, through the construction site images of the target building from multiple angles, the key feature points are extracted using algorithms such as SIFT, and combined with the algorithm principle of nearest neighbor matching, the nearest neighbor feature points are found using Euclidean distance to achieve feature point matching, thereby generating a sparse point cloud, and then using mathematical interpolation methods such as K nearest neighbor interpolation, the sparse three-dimensional point cloud is converted into a dense point cloud, and a BIM three-dimensional building model is further generated. It can be understood that after the exterior construction is completed, there is no need to modify the exterior of the BIM model, and only the progress of the interior needs to be aligned.

[0028] Furthermore, if Figure 2 As shown, the method for determining the progress conversion rate of the construction time of workers in M ​​external construction spaces includes: S210, obtaining, in the building construction automation management system, the u-1th BIM model and the uth BIM model corresponding to the target building generated at a preset time interval; S220. For the M external construction spaces, calculate the volume difference between each external construction space in the u-1th BIM model and each external construction space in the uth BIM model, and determine the progress conversion rate of the workers' construction time of the M external construction spaces; wherein u is a positive integer not less than 2.

[0029] Exemplarily, the building construction automation management system obtains the construction site images from different angles collected by the drone for the u-1th time, and generates the u-1th BIM model based on the construction site images from different angles. After a preset time interval, the building construction automation management system again obtains the construction site images from different angles collected by the drone for the uth time, and updates the u-1th BIM model based on the construction site images from different angles to generate the uth BIM model.

[0030] Optionally, step S220 includes: calculating the ratio of the volume difference between the Kth external construction space in the u-1th BIM model and the Kth external construction space in the uth BIM model to a 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 that the drone is in the Kth external construction space, to obtain the progress conversion rate of the workers' construction time in the M external construction spaces.

[0031] Specifically, the target building may have multiple external construction spaces where progress increments occur. Therefore, it is necessary to calculate the progress increment for each external construction space separately. The calculation formula for the progress increment is as follows: in, represents the progress increment corresponding to the Kth external construction space; represents the volume difference between each external construction space in the u-1th BIM model and each external construction space in the uth BIM model; T represents the preset time interval.

[0032] in, The cycle progress conversion rate representing the construction time of workers in the Kth external construction space; represents the duration of one day in the Kth external construction space during the uth drone shooting. The duration of one day in the Kth external construction space during the uth drone shooting is the time difference between the time experienced by the worker entering and leaving the area.

[0033] Furthermore, since a cycle includes several days, a progress model that changes every day is required in the later estimation, so the daily average progress conversion rate is calculated as follows: in, Represents the daily average progress conversion rate of the workers' construction time in the Kth external construction space.

[0034] 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: when the progress increments corresponding to M external construction spaces are all less than a preset threshold, determining that the target building is in the internal construction stage; or, determining that the pre-construction area is the Hth internal construction space in the construction plan in the building construction automation management system, and determining that the target building is in the internal construction stage.

[0035] Specifically, if the progress increment of the external construction space is not obvious, it means that the external construction stage has basically ended, that is, it has entered the internal construction stage, and the drone will not be used to take pictures of the construction site images. In this embodiment, the judgment basis of the progress increment of the external construction space is: the progress increment corresponding to the external construction space is normalized, and when the normalized result is less than a preset threshold (such as 0.01), it is determined that the target building is in the internal construction stage.

[0036] Optionally, if there is a situation where both external and internal construction are being carried out simultaneously in the construction plan, it is also necessary to align the progress of the internal construction space. In this embodiment, it can be determined first whether there is internal construction in the construction plan. If not, the progress increment of the external construction space is determined to determine whether it is the internal construction stage. This ensures that the progress of the internal construction can be aligned in real time, making the aligned BIM model more accurate.

[0037] It should be noted that different types of construction usually consume different building materials. However, in the same building, the materials consumed by the same type of construction have certain similarities. For example, cement, aggregates, water and other materials are required for concrete pouring. If more cement, aggregates, water and other materials are consumed during construction, it means that this type of construction is more likely to be concrete pouring. In addition, during the construction process, workers need to go back and forth to the material storage area to obtain relevant materials. The more consistent the number and type of personnel trajectories passing through the construction area to the material area, the more similar the material consumption is, the more similar the construction type is, and the progress conversion rate of the construction time is also consistent. Therefore, the first management module of the internal construction space is used to determine the degree of construction similarity between the internal construction space and the external construction space.

[0038] Preferably, if Figure 3 As shown, according to the construction material usage of the Hth internal construction space and the construction material usage of the Mth external construction space of the target building, the construction similarity degree of the Hth internal construction space and the Mth external construction space is determined respectively, including: S310, determining a 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; S320, determining the construction material acquisition ratio corresponding to the Kth external construction space according to the construction material usage of the Kth external construction space; S330. Determine the degree of construction similarity between the Hth internal construction space and the Kth external construction space based on the difference in the proportion of construction material acquisition corresponding to the Hth internal construction space and the proportion of construction material acquisition corresponding to the Kth external construction space; wherein K is a positive integer.

[0039] Exemplarily, step S310 includes: calculating the ratio of the number of times that workers in the Hth internal construction space reach the area where the i-th construction material is located to the number of workers in the Hth internal construction space, and obtaining the i-th construction material acquisition ratio corresponding to the Hth internal construction space; wherein i is a positive integer.

[0040] Specifically, since the worker's helmet is equipped with a positioning device, the number of times the worker in the Hth internal construction space reaches the area where the i-th construction material is located and the number of workers in the Hth internal construction space can be determined. The formula for the acquisition ratio of the i-th construction material corresponding to the Hth internal construction space is as follows: in, represents the acquisition ratio of the i-th type of construction material corresponding to the H-th internal construction space, represents the number of times the workers in the Hth internal construction space reach the area where the i-th construction material is located, represents the number of workers in the Hth internal construction space.

[0041] Exemplarily, step S320 includes: calculating the ratio of the number of times workers in the Kth external construction space arrive at the area where the i-th construction material is located to the number of workers in the Kth external construction space, and obtaining the i-th construction material acquisition ratio corresponding to the Kth external construction space.

[0042] Specifically, since the worker's helmet is equipped with a positioning device, the number of times the worker in the Kth external construction space reaches the area where the i-th construction material is located and the number of workers in the Kth external construction space can be determined. The formula for the acquisition ratio of the i-th construction material corresponding to the Kth external construction space is as follows: in, represents the acquisition ratio of the i-th type of construction material corresponding to the K-th external construction space, represents the number of times the workers in the Kth external construction space reach the area where the i-th construction material is located, represents the number of workers in the Kth external construction space.

[0043] Exemplarily, step S330 includes: respectively calculating the ratio difference between the N types of construction material acquisition ratios corresponding to the Hth internal construction space and the N types of construction material acquisition ratios corresponding to the Kth external construction space, to obtain the ratio difference between the construction material acquisition ratios corresponding to the N types of construction materials; wherein N is a positive integer; The proportion differences of the construction material acquisition proportions corresponding to the N types of construction materials are summed up to obtain the total construction difference 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, the construction similarity between the Hth internal construction space and the Kth external construction space is determined.

[0044] Specifically, since the smaller the difference in the proportion of construction material acquisition between the Kth external construction space and the Hth internal construction space, the more similar the construction types are, it is necessary to perform a similarity comparison on the N types of construction materials used in the Hth internal construction space. The specific formula is as follows: in, represents the degree of similarity between the Hth internal construction space and the Kth external construction space, and N represents the number of construction materials.

[0045] Furthermore, in the case where there are multiple external construction spaces, steps S310-S330 are used to respectively calculate the construction similarity between the internal construction space and the multiple external construction spaces to obtain multiple construction similarity degrees. In this way, by calculating multiple construction similarity degrees, the progress conversion rate of the construction time of the workers in the internal construction space can be more accurately calculated.

[0046] Furthermore, if Figure 4 As shown, by using the construction similarity between the Hth internal construction space and the M external construction spaces, the progress conversion rate of the construction time of the workers in the M external construction spaces is converted to obtain the progress conversion rate of the construction time of the workers in the Hth internal construction space, including: S410, normalizing the construction similarity between the Hth internal construction space and the Kth external construction space to obtain the normalized construction similarity between the Hth internal construction space and the Kth external construction space; S420, determining a progress conversion rate of the construction time of the workers of the Hth internal construction space of the Kth external construction space according to the normalized construction similarity between the Hth internal construction space and the Kth external construction space and the progress conversion rate of the construction time of the workers of the Kth external construction space; S430 , summing up the progress conversion rates of the construction time of the workers in the Hth internal construction space of the M external construction spaces to obtain the progress conversion rate of the construction time of the workers in the Hth internal construction space.

[0047] Specifically, by calculating the product of the construction similarity between the Hth internal construction space and different external construction spaces and the progress conversion rate of the workers' construction time of the corresponding external construction space, the progress conversion rate of the workers' construction time of the Hth internal construction space for different external construction spaces is obtained, thereby evaluating the progress conversion rate of the workers' construction time of the Hth internal construction space for different external construction spaces as a whole to improve the accuracy of the progress conversion rate of the workers' construction time of the Hth internal construction space.

[0048] In this embodiment, the specific formula for the progress conversion rate of the construction time of the workers in the Hth internal construction space is as follows: in, The progress conversion rate representing the construction time of workers in the Hth internal construction space; It indicates the number of external construction spaces. It is understood that when there are multiple external construction spaces, it can be considered that the external construction spaces are ranked; represents the sum of the construction similarity of M external construction spaces; It represents the degree of construction similarity between the Hth internal construction space and the Kth external construction space after normalization; Represents the progress conversion rate of the construction time of workers in the Kth external construction space.

[0049] Furthermore, according to the above steps, the progress conversion rate of the worker construction time of 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: in, represents the internal construction progress increment of the Hth internal construction space on the jth day; The progress conversion rate representing the construction time of workers in the Hth internal construction space; It represents the construction time of workers in the Hth internal construction space on the jth day.

[0050] Furthermore, after determining the internal construction progress increment of the Hth internal construction space on the jth day, the BIM model in the system is aligned so that the internal construction of the building can also ensure the accuracy of the BIM model progress alignment. At the same time, according to the progress-aligned BIM model, combined with the sensor data and related task plans, it realizes automatic management including progress management, resource management, quality management, etc., combined with artificial intelligence and other technologies, and improves the overall construction efficiency.

[0051] It should be noted that the sequence of the above embodiments of the present invention is only for description and does not represent the advantages and disadvantages 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.

[0052] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

Claims

1. A building construction automation management system based on BIM technology, characterized in that: include: An extraction module is used to obtain the construction material usage of M external construction spaces and the progress conversion rate of the construction time of the workers in the M external construction spaces when the target building is in the external construction stage when it is determined that the target building is in the internal construction stage; The first internal construction space management module is used to determine the construction similarity between the Hth internal construction space and the Mth external construction space according to the construction material usage of the Hth internal construction space and the construction material usage of the Mth external construction space of the target building; The second management module of the internal construction space is used to convert the progress conversion rate of the construction time of the workers of the M external construction spaces by using the construction similarity between the Hth internal construction space and the M external construction spaces, so as to obtain the progress conversion rate of the construction time of the workers of the Hth internal construction space; The third internal construction space management module is used to determine the internal construction progress increment of the Hth internal construction space according to the construction time of the workers in the Hth internal construction space and the progress conversion rate of the construction time of the workers in the Hth internal construction space; 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; wherein M and H are both positive integers.

2. The construction automation management system based on BIM technology according to claim 1 is characterized in that: According to the construction material usage of the Hth internal construction space and the construction material usage of the Mth external construction space of the target building, the construction similarity degree of the Hth internal construction space and the Mth external construction space is determined respectively, including: According to the usage of construction materials in the Hth internal construction space of the target building, determine the construction material acquisition ratio corresponding to the Hth internal construction space; According to the usage of construction materials in the Kth external construction space, determine the construction material acquisition ratio corresponding to the Kth external construction space; The degree of construction similarity between the Hth internal construction space and the Kth external construction space is determined based on the difference in the proportion of construction material acquisition corresponding to the Hth internal construction space and the proportion of construction material acquisition corresponding to the Kth external construction space; wherein K is a positive integer.

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

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

5. The construction automation management system based on BIM technology according to claim 2 is characterized in that: According to the difference between the proportion of construction material acquisition corresponding to the Hth internal construction space and the proportion of construction material acquisition corresponding to the Kth external construction space, the construction similarity between the Hth internal construction space and the Kth external construction space is determined, including: Calculate the differences between the proportions of N construction materials obtained in the Hth internal construction space and the proportions of N construction materials obtained in the Kth external construction space to obtain the differences in the proportions of N construction materials obtained; wherein N is a positive integer; The proportion differences of the construction material acquisition proportions corresponding to the N types of construction materials are summed up to obtain the total construction difference 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, the construction similarity between the Hth internal construction space and the Kth external construction space is determined.

6. The construction automation management system based on BIM technology according to claim 1 is characterized in that: The method for determining the progress conversion rate of the construction time of workers in M ​​external construction spaces includes: Obtaining the u-1th BIM model and the uth 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, the volume difference between each external construction space in the u-1th BIM model and each external construction space in the uth BIM model is calculated to determine the progress conversion rate of the workers' construction time for the M external construction spaces; where u is a positive integer not less than 2.

7. The construction automation management system based on BIM technology according to claim 6 is characterized in that: The construction method of the BIM model corresponding to the target building includes: Use drones to obtain construction site images of target buildings from different angles at preset time intervals; Based on the construction site images from different angles, a BIM model corresponding to the target building is constructed.

8. The construction automation management system based on BIM technology according to claim 6 is characterized in that: For the M external construction spaces, the volume difference between each external construction space in the u-1th BIM model and each external construction space in the u-th BIM model is calculated to determine the progress conversion rate of the workers' construction time of the M external construction spaces, including: calculating the volume difference between the Kth external construction space in the u-1th BIM model and the Kth external construction space in the u-th BIM model, and the ratio of the volume difference to the preset time interval to obtain the progress increment corresponding to the Kth external construction space; The ratio of the progress increment corresponding to the Kth external construction space to the duration that the drone is in the Kth external construction space is calculated to obtain the progress conversion rate of the workers' construction duration in the M external construction spaces.

9. The building construction automation management system based on BIM technology according to claim 8 is characterized in that: Methods for determining that a target building is in the internal construction stage include: 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; Or, the pre-construction area is determined as the Hth internal construction space in the construction plan in the building construction automation management system, and the target building is determined to be in the internal construction stage.

10. The building construction automation management system based on BIM technology according to claim 6, characterized in that: By using the construction similarity between the Hth internal construction space and the M external construction spaces, the progress conversion rate of the construction time of the workers in the M external construction spaces is converted to obtain the progress conversion rate of the construction time of the workers in the Hth internal construction space, including: Normalizing the construction similarity between the Hth internal construction space and the Kth external construction space to obtain the normalized construction similarity between the Hth internal construction space and the Kth external construction space; According to the normalized construction similarity between the Hth internal construction space and the Kth external construction space and the progress conversion rate of the construction time of the workers in the Kth external construction space, determine the progress conversion rate of the construction time of the workers in the Hth internal construction space for the Kth external construction space; The progress conversion rates of the construction time of the workers in the Hth internal construction space of the M external construction spaces are summed up to obtain the progress conversion rate of the construction time of the workers in the Hth internal construction space.

Images