System and method for managing lifting plan of modular construction

Abstract

The present invention relates to an apparatus and method for establishing and managing a lifting plan for a modular construction project. More specifically, the invention provides a modular construction lifting plan management system and method configured to solve the problems of conventional lifting planning methods, which generally require the establishment of a lifting plan considering work distribution or interference between tower cranes in addition to various site conditions at construction sites using multiple tower cranes, but which have limitations in that the lifting plan is established through a single optimization aimed at simply minimizing costs, thereby increasing the probability of work interference and collision between tower cranes and reducing work productivity. The system collects design information including BIM (Building Information Modeling) and drawings, as well as data related to tower crane usage including specifications and locations of tower cranes, and determines the optimal number, specifications, and locations of tower cranes through a Multi Objective Optimization algorithm aimed at minimizing costs and interference areas using the specifications and location information of the tower cranes as input. This configuration enables more effective and efficient establishment and management of a lifting plan for a modular construction site.

Description

Technology Field

[0001] The present invention relates to an apparatus and method for establishing and managing a lifting plan for the use of tower cranes during the execution of a modular construction project. More specifically, the invention relates to a modular construction lifting plan management system and method configured to perform processing to establish and manage an optimal lifting plan for a modular construction site using a Multi Objective Optimization algorithm. This is intended to solve the problems of conventional lifting planning methods, which generally require the establishment of a lifting plan by considering various site conditions such as the specifications and location of the tower crane, the relationship between the tower crane and the lifting / installation location, the lifting target, entrances, and access roads, and additionally, when using multiple tower cranes, additional considerations exist such as work distribution between tower cranes and work interference in areas where lifting ranges overlap; however, conventional methods are configured to establish a lifting plan through a single optimization aimed solely at cost minimization without considering work interference between tower cranes, resulting in increased work interference and collision probability between tower cranes and reduced work productivity. It is.

[0002] Furthermore, the present invention relates to a modular construction lifting plan management system and method configured to solve the problems of conventional lifting planning methods, which, as described above, had limitations in that work productivity decreased due to increased work interference and collision probability between tower cranes as a result of being configured to establish a lifting plan through a single optimization aimed at simply minimizing costs. Specifically, for a modular construction project, the system collects design information, such as BIM (Building Information Modeling) and drawings, and data related to the use of tower cranes, such as specifications and locations of tower cranes. It then selects the optimal number of tower cranes, specifications, and locations through a multi-objective optimization algorithm aimed at minimizing costs and interference areas using the specifications and location information of the tower cranes as input, and performs a process to visualize the optimization results and display them on design drawings, thereby enabling more effective and efficient establishment and management of lifting plans for modular construction sites. Background Technology

[0004] Recently, with the advancement of construction technology, the construction of very tall buildings, such as high-rise and super-tall buildings, is increasing, and consequently, the use of tower cranes for constructing these buildings is increasing significantly.

[0005] In addition, a tower crane is generally configured to include a mast installed vertically on the ground, a jib installed horizontally with respect to the ground surface on the upper part of the mast and rotating, a cab installed at the lower part of the jib, a trolley that moves horizontally on the jib, and a hoisting block and a hook installed at the end of the trolley, and is configured to transport various construction materials while the hoisting block and the hook move horizontally and vertically together with the trolley.

[0006] Furthermore, since tower cranes are expensive, large-scale heavy equipment, it is necessary to establish an appropriate operational plan to use and manage them more efficiently in order to reduce overall construction costs.

[0007] Here, as mentioned above, examples of prior art regarding devices and methods for more efficiently using and managing tower cranes during construction and building projects include, first, the "method for managing a construction tower crane using an integrated schedule plan, a program for executing the same, and a computer-readable recording medium" as presented in, for example, Korean Registered Patent Publication No. 10-2112749.

[0008] More specifically, the aforementioned Korean Registered Patent Publication No. 10-2112749 describes a method for managing a tower crane in a construction project, comprising: (a) a step in which a zone setting module divides a construction project area into multiple zones based on horizontal standards and divides each of the multiple zones into multiple sub-zones; (b) a step in which a vertical relationship setting module establishes a vertical relationship for each construction project in the order of earthwork, underground frame work, and above-ground frame work for each of the multiple sub-zones; (c) a step in which a horizontal relationship setting module establishes a horizontal relationship for each of the multiple sub-zones for each of the earthwork, underground frame work, and above-ground frame work; (d) a step in which an integrated schedule planning module establishes the order of each construction project for each sub-zone by utilizing both the vertical relationship established in step (b) and the horizontal relationship established in step (c), thereby establishing the order of each sub-zone-construction; (e) a step in which an integrated schedule detailed planning module allocates work days for each sub-zone-construction established in step (d) according to a pre-established method. (f) a step in which an integrated schedule detailed planning module receives the start date of the initial detailed area-construction and sets an integrated schedule detailed plan using the number of working days for each detailed area-construction assigned in step (e); (g) a step in which a lifting planning module assigns one of a plurality of tower cranes to each detailed area where ground frame construction is performed; and (h) a step in which a tower crane operation planning module uses the integrated schedule detailed plan set in step (f) to identify the end date when the number of working days for ground frame construction of each floor of the detailed area has elapsed, and establishes a lifting plan to ensure that the tower crane assigned to the corresponding detailed area is lifted on the identified end date, thereby automatically setting the sequence of various detailed areas and related construction from external data created by CAD or BIM, etc. containing architectural design information, so as to fundamentally prevent errors in construction planning caused by human planning and to quickly establish an optimal construction plan.

[0009] In addition, as mentioned above, another example of prior art regarding a device and method for more efficiently using and managing a tower crane during construction and building projects is, for example, the "Tower Crane Autonomous Operation System and Autonomous Operation Method Using the Same" as presented in Korean Registered Patent Publication No. 10-2357499.

[0010] More specifically, the aforementioned Korean Registered Patent Publication No. 10-2357499 comprises: a tower crane operating in response to a control scenario; an operator device for generating work command information to operate the tower crane; and a scanner device for acquiring speed and encoder values ​​through a motor driver that operates a motor and is equipped with a 2D LiDAR to scan the tower crane. The present invention relates to a tower crane autonomous operation system and an autonomous operation method using the same, comprising a remote control server that generates 3D point cloud data using encoder values ​​received from a scanner device and scan information from a 2D LiDAR, creates a virtual model by digitally replicating it through object detection of the 3D point cloud data and surrounding information of the tower crane collected in advance, derives an optimized control scenario for the tower crane according to work command information through the virtual model, and transmits it to the tower crane; thereby collecting data on surrounding information of a construction site where the tower crane is installed and applying a digital twin to predict the operation of the tower crane according to work commands input by a worker, so that the tower crane can be operated efficiently, enabling autonomous operation of the tower crane, and also significantly reducing the safety accident rate of the tower crane by identifying objects or people through sensors and preventing materials moved by the tower crane from colliding with objects or people.

[0011] As mentioned above, various devices and methods have been proposed to use and manage tower cranes more efficiently during construction and building projects; however, the contents of the aforementioned conventional technologies had the following limitations.

[0012] In other words, generally, construction sites using tower cranes must establish a lifting plan by considering various site conditions, such as the tower crane's specifications, location, the relationship between the tower crane and the lifting / installation site, the lifting target, and access roads.

[0013] In addition, when using multiple tower cranes, there are additional considerations such as work distribution between tower cranes and work interference in areas where lifting ranges overlap. However, most conventional lifting planning methods are configured to establish a lifting plan through a single optimization aimed at minimizing costs without considering work interference between tower cranes. Consequently, there is a limitation in that the probability of work interference and collision between tower cranes increases, and as a result, overall work productivity decreases.

[0014] Furthermore, reflecting the characteristics of high-rise building construction where identical tasks are repeated on every floor, there is a growing trend of adopting modular construction methods in which most processes are carried out through factory fabrication and only the lifting, installation, and simple finishing of factory-made units are performed on-site. In such modular construction, unit damage or falling debris caused by collisions during lifting are becoming major causes of safety accidents.

[0015] Accordingly, in order to increase the efficiency of each task in modular construction, shorten the construction period, and reduce overall costs, it is required to establish and manage an appropriate lifting plan tailored to the characteristics of modular construction, where the same work is repeated on each floor; however, the aforementioned conventional technologies had limitations in that they did not present a lifting planning method specialized for modular construction in this way.

[0016] Therefore, in order to resolve the limitations of the conventional technology described above, it is desirable to propose a new configuration of a modular construction lifting plan management system and method that is configured to automatically perform processing such as determining the number, specifications, and locations of tower cranes for a modular construction site based on input data, and establishing and managing an optimal lifting plan, by implementing a Multi-Objective Optimization algorithm aimed at minimizing costs and interference areas suitable for modular construction, for example. However, a device or method that satisfies all such requirements has not yet been presented. Prior art literature

[0018] Korean Registered Patent Publication No. 10-2112749 (May 21, 2020) Korean Registered Patent Publication No. 10-2357499 (February 7, 2022) The problem to be solved

[0019] The present invention aims to solve the problems of the prior art as described above. Accordingly, the objective of the present invention is to present a modular construction lifting plan management system and method configured to perform processing to establish and manage an optimal lifting plan for a modular construction site using a Multi Objective Optimization algorithm. This is to solve the problems of prior art lifting planning methods, which generally require that a lifting plan be established by considering various site conditions such as the specifications and location of the tower crane, the relationship between the tower crane and the lifting / installation location, the lifting target, entrances and access roads, etc., and additionally, when using multiple tower cranes, additional considerations exist such as work distribution between tower cranes and work interference in areas where lifting ranges overlap. However, since the lifting plan is established through a single optimization for cost minimization without considering work interference between tower cranes, the probability of work interference and collision between tower cranes increases, thereby reducing work productivity.

[0020] Furthermore, another objective of the present invention is to present a modular construction lifting plan management system and method configured to enable more effective and efficient planning and management of lifting plans for modular construction sites. This is achieved by solving the problems of conventional lifting planning methods, which, as described above, were configured to establish lifting plans through a single optimization aimed at simply minimizing costs, resulting in increased work interference and collision probability between tower cranes and reduced work productivity. Specifically, for modular construction projects, the system collects design information, such as BIM (Building Information Modeling) and drawings, and data related to tower crane usage, such as specifications and locations of tower cranes. It then selects the optimal number of tower cranes, specifications, and locations using a multi-objective optimization algorithm aimed at minimizing costs and interference areas as input, and performs a process to visualize the optimization results and display them on design drawings. means of solving the problem

[0022] To achieve the above-mentioned purpose, according to the present invention, a modular construction lifting plan management system is provided, comprising: an input unit configured to perform processing to receive various data for establishing and managing a lifting plan for a modular construction project; a data processing unit configured to perform processing to establish and manage an optimal lifting plan for the modular construction project through Multi Objective Optimization based on the data input through the input unit; and an output unit configured to perform processing to output various data including processing results processed by the data processing unit.

[0023] Herein, the system is characterized by further comprising: a database unit for storing data input through the input unit and various data obtained as a processing result of the data processing unit; a communication unit configured to perform processing for transmitting and receiving various data with an external device, including each user terminal or server, through at least one of wired or wireless communication; and a control unit configured to perform processing for controlling the overall operation of the system.

[0024] In addition, the input unit is characterized by being configured to directly receive various data through a separate input means, or to perform processing to receive various data from the outside via wired or wireless means through the communication unit.

[0025] In addition, the data processing unit is characterized by comprising: a lifting plan establishment unit configured to perform processing to establish an optimal lifting plan for a modular construction project based on data input through the input unit; and a lifting plan management unit configured to perform processing to manage each task according to the lifting plan established through the lifting plan establishment unit.

[0026] Furthermore, the lifting plan establishment unit comprises: a data collection step in which processing is performed to receive input data containing various information regarding a modular construction project through the input unit; a grid formation step in which processing is performed to grid a site drawing and generate an orthogonal coordinate system (X, Y) based on the input data collected through the data collection step; an optimization step in which processing is performed to set initial values ​​according to predetermined settings and derive an optimal solution for the specifications and positions of each tower crane using a multi-objective optimization algorithm in which the number of tower cranes is an input variable and the specifications and positions of the tower cranes are output variables; an iteration step in which processing is performed to repeat the optimization process while changing the number of tower cranes until a predetermined maximum number is satisfied; a lifting plan establishment step in which processing is performed to stop optimization when the set maximum number is reached and to establish an optimal Tower Crane Lift Plan (TCLP) by comparing each optimal solution according to predetermined settings; and a data output step in which processing is performed to output output data including each optimal solution and the established lifting plan. It is characterized by being configured to perform a process including a database construction step, wherein the input data and output data are stored in a database form to construct a database related to the lifting plan of modular construction.

[0027] Here, the input data is configured to include building information including the height of the target building and the location of core walls, site information including dimensions and site facilities, tower crane information including the number of tower cranes, candidate location, specifications (minimum distance, maximum hook height, travel speed, maximum working radius), rental cost, and fixed cost, trailer installation location information, lifting and installation location information of modular units, and information on the size and weight of modular units, and the output data is characterized by being configured to include the optimal number of tower cranes, specifications and location, total cost, conflict area, task allocation and operating time for each tower crane, and optimal trailer location.

[0028] In addition, the optimization step is characterized by being configured such that, as the multi-objective optimization algorithm, a process for deriving the optimal solution is performed using a Multi-Objective Genetic Algorithm or an NSGA-II (Non-dominated Sorting Genetic Algorithm-II) algorithm.

[0029] In addition, the lifting plan management unit is characterized by being configured to perform a process of constructing, visualizing, and managing each work schedule using the TACT technique based on the lifting plan created through the lifting plan establishment unit.

[0030] Furthermore, the data processing unit is characterized by being configured to perform a process of storing various data obtained as respective processing results in the database unit, while simultaneously transmitting them to an external device or a separate storage device through the communication unit according to a predetermined setting.

[0031] In addition, the output unit is characterized by being configured to perform a process of visually displaying each processing step and processing result through a separate display means including a monitor or display, or by further including a voice output means including a speaker to perform a process of transmitting various information by voice.

[0032] In addition, the above system is characterized by being configured to replace an existing Project Management Information System (PMIS) or to be linked with a PMIS to perform processing for assisting the functions of the PMIS and transmitting and receiving various information.

[0033] Furthermore, according to the present invention, a modular construction lifting plan management method is provided, which is configured to perform a process of establishing and managing a lifting plan using the modular construction lifting plan management system described above, comprising: a data collection step in which a process of receiving various data regarding a modular construction project is performed through an input unit of the system; a lifting plan establishment step in which a process of establishing an optimal lifting plan using a Multi Objective Optimization algorithm based on the data collected through the data collection step is performed through a data processing unit of the system; and a lifting plan management step in which a process of creating and managing a work schedule using a TACT technique according to the lifting plan established in the lifting plan establishment step is performed through a data processing unit of the system.

[0034] Herein, the above method is characterized by being configured in the form of a computer program that executes the processing steps of the data collection step, the lifting plan establishment step, and the lifting plan management step on a computer.

[0035] In addition, according to the present invention, a modular construction lifting plan and management service provision system is provided, comprising: a user terminal for each user to input various information for establishing and managing a lifting plan for a modular construction project and to receive processing results; and a server configured to perform processing to establish a lifting plan for each task of a modular construction project based on information input through each of the user terminals and to manage each task according to the established lifting plan, wherein the server is configured to perform processing to establish and manage a lifting plan using the modular construction lifting plan management system described above.

[0036] Here, the user terminal is characterized by being configured by installing a dedicated program linked to the server on an information processing device including a PC or a laptop, or by installing a dedicated application program linked to the server on a personal portable information processing terminal device including a smartphone or a tablet PC. Effects of the invention

[0038] As described above, according to the present invention, a modular construction lifting plan management system and method are provided, configured to collect design information including, for example, BIM (Building Information Modeling) and drawings, and data related to the use of tower cranes including specifications and locations of tower cranes for a modular construction project, select the optimal number of tower cranes, specifications, and locations through a Multi Objective Optimization algorithm aimed at minimizing costs and interference areas using the specifications and location information of tower cranes as input, and visualize the optimization results and display them on design drawings, thereby enabling the establishment and management of a more effective and efficient lifting plan for a modular construction site.

[0039] In addition, according to the present invention, a modular construction lifting plan management system and method are provided that are configured to perform processing to establish and manage an optimal lifting plan for a modular construction site using a multi-objective optimization algorithm as described above. This can solve the problems of conventional lifting planning methods, which generally require that a lifting plan be established by considering various site conditions such as the specifications and location of the tower crane, the relationship between the tower crane and the lifting / installation location, the lifting target, entrances and access roads, etc., when using multiple tower cranes, additional considerations exist such as work distribution between tower cranes and work interference in areas where lifting ranges overlap. However, since the lifting plan is established through a single optimization for cost minimization without considering work interference between tower cranes, the probability of work interference and collision between tower cranes increases, thereby reducing work productivity. Brief explanation of the drawing

[0041] FIG. 1 is a block diagram schematically showing the overall configuration of a modular building lifting plan management system according to an embodiment of the present invention. FIG. 2 is a block diagram schematically showing the specific configuration of the data processing unit of the modular building lifting plan management system according to the embodiment of the present invention shown in FIG. 1. Figure 3 is a conceptual diagram schematically showing the overall processing process performed in the data processing unit shown in Figure 2. Figure 4 is a flowchart schematically showing the overall processing process performed in the lifting plan establishment unit of the data processing unit shown in Figure 2. Figure 5 is a flowchart schematically showing the overall processing of the NSGA-II algorithm. Figure 6 is a diagram showing an example of the configuration of input and output data for a modular building lifting plan management system according to an embodiment of the present invention, summarized in a table. FIG. 7 is a conceptual diagram schematically showing the overall configuration of a lifting plan establishment and management method using a modular building lifting plan management system according to an embodiment of the present invention. FIG. 8 is a flowchart schematically showing the overall processing process of a lifting plan establishment and management method using a modular construction lifting plan management system according to an embodiment of the present invention. FIG. 9 is a conceptual diagram schematically illustrating the overall process of establishing and managing a lifting plan between a site manager and a client / supervisor using a modular construction lifting plan management system and method according to an embodiment of the present invention. FIG. 10 is a diagram showing an example of the configuration of a user interface (UI) of a modular building lifting plan management system and method according to an embodiment of the present invention, and is a diagram showing a screen for inputting various information for establishing an optimal lifting plan. FIG. 11 is a drawing showing an example of the configuration of a user interface (UI) of a modular building lifting plan management system and method according to an embodiment of the present invention, and is a drawing showing a screen for checking the specifications of a tower crane. FIG. 12 is a diagram showing an example of the configuration of a user interface (UI) of a modular building lifting plan management system and method according to an embodiment of the present invention, and is a diagram showing a screen for setting various parameters and variables for optimization. FIG. 13 is a diagram showing an example of the configuration of a user interface (UI) of a modular building lifting plan management system and method according to an embodiment of the present invention, and is a diagram showing a screen for performing a simulation of an optimized lifting plan. FIG. 14 is a block diagram schematically showing the overall configuration of a modular building lifting plan and management service provision system using a modular building lifting plan management system and method according to an embodiment of the present invention. Specific details for implementing the invention

[0042] Hereinafter, specific embodiments of the modular construction lifting plan management system and method according to the present invention will be described with reference to the attached drawings.

[0043] Hereinafter, it should be noted that the following description is merely one embodiment for carrying out the present invention, and the present invention is not limited only to the contents of the embodiment described below.

[0044] In addition, it should be noted that in the following description of the embodiments of the present invention, detailed descriptions of parts that are identical or similar to the prior art or that are deemed to be easily understood and implemented by those skilled in the art have been omitted for the sake of brevity.

[0045] In other words, the present invention relates to a modular construction lifting plan management system and method configured to perform processing to establish and manage an optimal lifting plan for a modular construction site using a Multi Objective Optimization algorithm, in order to solve the problems of conventional lifting planning methods, which had limitations in that work productivity decreased due to increased work interference and collision probability between tower cranes, as the lifting plan was established through a single optimization for cost minimization without considering work interference between tower cranes, even though, as described below, construction sites using tower cranes generally require the establishment of a lifting plan by considering various site conditions such as the specifications and location of the tower crane, the relationship between the tower crane and the lifting / installation location, the lifting target, entrances and access roads, etc., and additional considerations such as work distribution between tower cranes and work interference in areas where lifting ranges overlap when multiple tower cranes are used.

[0046] Furthermore, the present invention relates to a modular construction lifting plan management system and method configured to solve the problems of conventional lifting planning methods, which, as described below, had limitations such as reduced work productivity due to increased work interference and collision probability between tower cranes resulting from being configured to establish a lifting plan through a single optimization aimed at simply minimizing costs. Specifically, for a modular construction project, the system collects design information, such as BIM (Building Information Modeling) and drawings, and data related to the use of tower cranes, such as specifications and locations of tower cranes. It then selects the optimal number of tower cranes, specifications, and locations through a multi-objective optimization algorithm aimed at minimizing costs and interference areas using the specifications and location information of the tower cranes as input, and performs a process to visualize the optimization results and display them on design drawings, thereby enabling more effective and efficient establishment and management of lifting plans for modular construction sites.

[0047] Next, with reference to the drawings, specific details of the modular construction lifting plan management system and method according to the present invention will be described.

[0048] More specifically, first, referring to FIG. 1, FIG. 1 is a block diagram schematically showing the overall configuration of a modular building lifting plan management system (10) according to an embodiment of the present invention.

[0049] As shown in FIG. 1, a modular construction lifting plan management system (10) according to an embodiment of the present invention is broadly divided into: an input unit (11) comprising an input means for receiving various data for establishing and managing a lifting plan from an external device, such as a user terminal or a server; a data processing unit (12) configured to perform processing to establish a lifting plan for a modular construction project through Multi Objective Optimization based on data input through the input unit (11); an output unit (13) configured to perform processing to output various data including processing results processed by the data processing unit (12); a database unit (14) for storing data input through the input unit (11) and various data obtained as processing results of the data processing unit (12); a communication unit (15) configured to perform processing to transmit and receive various data to and from each user terminal, server, and external device through at least one of wired or wireless communication; and a processing unit that controls the overall operation of each of the above-mentioned units and the system (10). It may be configured to include a control unit (16) that is configured to perform.

[0050] More specifically, first, the above-mentioned input unit (11) may be configured to perform processing such as directly receiving various data through an input means, or receiving various data from the outside via wired or wireless means through a communication unit (15).

[0051] In addition, referring to FIGS. 2 and FIGS. 3, FIG. 2 is a block diagram schematically showing the specific configuration of the data processing unit (12) of the modular building lifting plan management system (10) according to the embodiment of the present invention shown in FIG. 1.

[0052] As shown in FIG. 2, the data processing unit (12) described above may be broadly configured to include a lifting plan establishment unit (21) that performs processing to establish a lifting plan for a modular construction project based on data input through the input unit (11), and a lifting plan management unit (22) that performs processing to manage each task according to the established lifting plan.

[0053] More specifically, referring to FIGS. 3 and FIGS. 4, FIG. 3 is a conceptual diagram schematically showing the overall processing process performed in the data processing unit (12) shown in FIG. 2, and FIG. 4 is a flowchart schematically showing the overall processing process performed in the lifting plan establishment unit (21) of the data processing unit (12) shown in FIG. 2.

[0054] As shown in FIG. 3, the data processing unit (12) described above can be configured to receive various data regarding a modular construction project, such as drawings, grid the site, establish an optimal lifting plan through a Multi Objective Optimization algorithm, and display it on the drawings.

[0055] More specifically, as shown in FIG. 4, the lifting plan establishment unit (21) described above first receives information about the site, such as a site map, for a modular construction project, information about the building and module, and information about the location and specifications of the tower crane, respectively (S10); based on the input data, grids the site to generate an orthogonal coordinate system (X, Y) (S20); sets the number of tower cranes as a fixed variable of the optimization model and sets a preset number or an arbitrary number as an initial value to derive an optimal solution for the specifications and location of each tower crane through a multi-objective optimization algorithm (S30); saves the optimal solution when it is derived (S40); repeats the optimization process while changing the number until the maximum number is satisfied according to a predetermined setting (S50); stops the optimization when the maximum number is reached and outputs and displays the saved optimal solutions (S60); and compares each optimal solution according to a predetermined setting to determine the optimal tower crane The process may be configured to include a step (S70) of establishing a Tower Crane Lift Plan (TCLP).

[0056] In addition, the step (S30) for deriving the optimal solution described above can be configured to perform a process of deriving the optimal solution for the specifications and location of the tower cranes using the number of tower cranes as input, by using the NSGA-II (Non-dominated Sorting Genetic Algorithm-II) algorithm, which is a multi-objective genetic algorithm, as a multi-objective optimization technique.

[0057] That is, referring to Fig. 5, Fig. 5 is a flowchart schematically showing the overall processing of the NSGA-II algorithm.

[0058] As shown in Figure 5, the NSGA-II algorithm was proposed to solve multi-objective function problems and has advantages such as providing non-dominated Pareto optimal solutions for each objective function and maintaining a uniformly distributed set of Pareto optimal solutions, so it has recently been widely used as a multi-objective function optimization technique.

[0059] Here, regarding the specific details of the NSGA-II algorithm described above and the processing steps for finding the optimal solution for a multi-objective function using it, since these matters can be appropriately implemented by a person skilled in the art by referring to the content of multi-objective function optimization techniques or multi-objective genetic algorithms of the prior art, it should be noted that, in order to keep the explanation brief, the detailed description of the content that is obvious to a person skilled in the art as described above or that can be easily understood and implemented by a person skilled in the art by referring to prior art literature, etc., has been omitted in the present invention.

[0060] In addition, referring to FIG. 6, FIG. 6 is a diagram showing an example of the configuration of input data and output data for a modular building lifting plan management system (10) according to an embodiment of the present invention in a table.

[0061] As shown in FIG. 6, the input data may be configured to include, for example, building information including the height and location of core walls of the target building; site information including the location of dimensions, site facilities, storage, access road, and entrance; tower crane information including the number of tower cranes, candidate location, specifications (minimum distance, maximum hook height, travel speed, maximum working radius, etc.), rental cost, and fixed cost; and information regarding the installation location of the trailer, the lifting location and installation location of the modular unit, and the size and weight of the modular unit.

[0062] In addition, as shown in Fig. 6, the output data may be configured to include information on the optimal number of tower cranes, specifications and locations, total cost, interference area, work allocation and operating time of each tower crane, and the optimal location of the trailer.

[0063] Here, each of the above-mentioned input data can be configured to use data that is pre-stored in the database unit (14), and the output data obtained as a result of processing can be output through the output unit (13) and simultaneously stored in the database unit (14) to build a database related to the lifting plan of a modular construction project.

[0064] That is, the above-mentioned data processing unit (12) can be configured to perform a process of storing various data obtained as a result of each processing in the database unit (14) and, at the same time, transmitting the data to an external device or a separate storage device through the communication unit (15) according to a predetermined setting.

[0065] Furthermore, the output unit (13) described above may be configured to visually display each processing step and processing result through a separate display means, such as a monitor or display, for example, or may be configured to transmit various information in the form of voice, such as by including a voice output means such as a speaker. In other words, it should be noted that the present invention may be configured by various modifications and changes as needed by those skilled in the art within the scope that does not deviate from the spirit and essence of the present invention.

[0066] In addition, the lifting plan management unit (22) described above may be configured to perform a process of managing each task according to the lifting plan created through the lifting plan establishment unit (21) as described above.

[0067] At this time, the above-mentioned lifting plan management unit (22) is configured to allocate work volume, personnel, and processes so that all processes can be processed within the same working time (TACT time), taking into account the characteristics of modular construction where work divisions are clear and repetitive work characteristics appear according to factory production and on-site construction of unit modules. It can be configured to perform processing to build, visualize, and manage each work schedule using a TACT technique that has characteristics suitable for creating schedules for repetitive work at the floor level, such as in modular high-rise construction.

[0068] In addition, the modular construction lifting plan management system (10) according to an embodiment of the present invention may be configured to automatically perform the process of establishing an optimal lifting plan through a multi-purpose optimization algorithm as described above, and creating and managing a work schedule based on TACT according to various working conditions and site conditions of a modular construction project, according to the user's selection, or according to an artificial intelligence (AI) algorithm or a predetermined setting.

[0069] Here, the artificial intelligence algorithm described above may be configured using learning algorithms such as, for example, deep learning or machine learning, or artificial neural networks (ANN) or convolutional neural networks (CNN). It should be noted that detailed descriptions regarding such artificial intelligence algorithms and processing steps for estimating specific data using them are matters that can be appropriately configured by a person skilled in the art through the contents of prior art, and thus have been omitted here.

[0070] Furthermore, the above-mentioned system (10) may be implemented in the form of a separate system that replaces the existing Project Management Information System (PMS) or is linked with the PMIS to assist the functions of the PMIS and exchange information between systems, thereby providing a function to collect detailed data regarding management elements reflecting the characteristics of modular construction, resource input and work details regarding the production and construction of unit modules, and thereby replaces various existing construction scheduling tools to provide scheduling functions suitable for modular construction, establishes an optimal lifting plan reflecting the characteristics of modular construction, and builds, visualizes, and manages each schedule based on the TACT technique suitable for modular construction, in which work divisions are clear and repetitive work characteristics appear according to factory production and on-site construction of unit modules.

[0071] That is, referring to FIGS. 7 and 8, FIG. 7 is a conceptual diagram schematically showing the overall configuration of a lifting plan establishment and management method using a modular building lifting plan management system (10) according to an embodiment of the present invention, and FIG. 8 is a flowchart schematically showing the overall processing process of a lifting plan establishment and management method using a modular building lifting plan management system (10) according to an embodiment of the present invention.

[0072] As shown in FIGS. 7 and 8, the process of establishing a lifting plan using the modular building lifting plan management system (10) and method according to an embodiment of the present invention can be configured such that, first, various data such as site area, building height, and unit weight are extracted from BIM and drawings and converted to fit the form of input data, and together with this, the optimal tower crane specifications and location are derived through the multi-purpose optimization algorithm as described above based on the specifications and installation location information of the tower crane, and the output processing result is displayed on the design drawing to visualize and establish a lifting plan.

[0073] At this time, the input information can be configured to extract design information from drawings or, if necessary, allow the user to directly input the necessary information, and the optimization process can be configured to output the optimization results for the specifications and location of the tower crane and the location of the trailer, respectively, by using a multi-objective optimization algorithm with the operating cost and operating period of the tower crane as objective functions, as shown in FIGS. 7 and 9, and the output information can be configured to include model information containing the specifications of each tower crane and to visualize and display the locations of the tower crane and the trailer on the design drawings.

[0074] In addition, referring to FIG. 9, FIG. 9 is a conceptual diagram schematically showing the overall process of establishing and managing a lifting plan between a site manager and a client / supervisor using a modular construction lifting plan management system (10) and method according to an embodiment of the present invention.

[0075] As shown in FIG. 9, the modular construction lifting plan management system (10) and method according to an embodiment of the present invention can be configured so that opinions on requirements are exchanged among each user (site manager, client / supervisor, process manager, factory manager, etc.) and the lifting plan is established and managed through review and approval by the final person in charge (process manager, etc.).

[0076] That is, as shown in FIG. 9, when a site manager uploads information related to modular units and design drawings, etc. to the modular construction lifting plan management system (10) according to an embodiment of the present invention, confirms and approves the optimized results, and then uploads the final lifting plan to the system (10), the client / supervisor can check the lifting plan uploaded through the system (10) and continuously monitor the work details, thereby allowing the management of the lifting plan to be carried out more efficiently and effectively.

[0077] Furthermore, the above-described system (10) can be implemented in the form of a computer program configured to execute the processing of the data processing unit (12) on a computer, etc., and thereby can be implemented with a simpler configuration and lower cost without the need to implement separate hardware.

[0078] That is, referring to FIGS. 10 to 13, FIGS. 10 to 13 are drawings each showing an example of the configuration of an execution screen executed on a computer by implementing the modular building lifting plan management system (10) and method according to an embodiment of the present invention as a computer program.

[0079] Here, FIGS. 10 to 13 are drawings showing examples of configurations for a user interface (UI) of a modular building lifting plan management system and method according to an embodiment of the present invention, FIG. 10 shows a screen for inputting various information for establishing an optimal lifting plan, FIG. 11 shows a screen for checking the specifications of a tower crane, FIG. 12 shows a screen for setting various parameters and variables for optimization, and FIG. 13 shows a screen for performing a simulation of the optimized lifting plan.

[0080] As shown in FIGS. 10 to 13, the user interface (UI) of the modular building lifting plan management system (10) and method according to an embodiment of the present invention may be configured to receive a specification table of a tower crane available for use along with information on site drawings, possible installation locations of the tower crane, installation locations of modular units, etc., as input data, set various variables for optimization processing, and display details of the optimization results (optimal tower crane model, operation period, operation cost, interference area, etc.) as output data, while simultaneously visually displaying the optimal tower crane location on the design drawings.

[0081] At this time, the system can be configured to store each input data and the output data of the optimization results in a database, thereby providing a simulation function for the lifting plan of modular construction by allowing the user to repeatedly perform the optimization process while changing the optimization conditions. Additionally, when a tower crane model is selected on the result display screen, the system can be configured to display a specification table through a pop-up window and provide a download link for the specification table.

[0082] Therefore, from the configuration described above, by using the modular construction lifting plan management system (10) and method according to the embodiment of the present invention, a series of processes for establishing, visualizing, and managing an optimal lifting plan suitable for modular construction, which has clear work divisions and repetitive work characteristics depending on factory production and on-site construction, can be carried out more easily and efficiently.

[0083] In addition, according to the present invention, a modular construction lifting plan management service can be easily implemented by using the modular construction lifting plan management system (10) and method according to the embodiment of the present invention configured as described above, so that multiple users can simultaneously establish and manage lifting plans for modular construction projects online.

[0084] That is, referring to FIG. 14, FIG. 14 is a block diagram schematically showing the overall configuration of a modular building lifting plan management system (10) and a modular building lifting plan and management service provision system (30) using the method according to an embodiment of the present invention.

[0085] As shown in FIG. 14, the modular building lifting plan management system (10) and the modular building lifting plan and management service provision system (30) using the method according to an embodiment of the present invention may be broadly configured to include a user terminal (31) for each user to input various information for establishing and managing a lifting plan for a modular building project and to receive processing results, and a server (32) for establishing a lifting plan for a modular building project based on the information input through each user terminal (31) and performing processing to manage each task according to the established lifting plan.

[0086] Here, the above-described server (32) may be configured to perform a process of establishing and managing a lifting plan using the modular building lifting plan management system (10) and method according to the embodiment of the present invention configured as described above.

[0087] In addition, the above-described user terminal (31) may be configured by installing a dedicated program linked to the above-described server (32) on an information processing device such as a PC or laptop, for example, or by installing a dedicated application program linked to the above-described server (32) on a personal portable information processing terminal device having communication functions such as a smartphone or tablet PC, but the present invention is not necessarily limited to such configurations. That is, it should be noted that the present invention may be configured by various modifications and changes as needed by those skilled in the art within the scope that does not deviate from the spirit and essence of the present invention.

[0088] Accordingly, as described above, a modular construction lifting plan management system and method according to an embodiment of the present invention can be implemented. By doing so, according to the present invention, for a modular construction project, design information including, for example, BIM (Building Information Modeling) and drawings, and data related to the use of tower cranes including specifications and locations of tower cranes are collected respectively; the optimal number of tower cranes, specifications, and locations are selected through a multi-objective optimization algorithm aimed at minimizing costs and interference areas using the specifications and location information of tower cranes as input; and the optimization results are visualized and displayed on design drawings, etc. By providing a modular construction lifting plan management system and method configured to perform such processing, more effective and efficient lifting plans can be established and managed for a modular construction site.

[0089] In addition, according to the present invention, a modular construction lifting plan management system and method are provided that are configured to perform processing to establish and manage an optimal lifting plan for a modular construction site using a multi-objective optimization algorithm as described above. This can solve the problems of conventional lifting planning methods, which generally require that a lifting plan be established by considering various site conditions such as the specifications and location of the tower crane, the relationship between the tower crane and the lifting / installation location, the lifting target, entrances and access roads, etc., when using multiple tower cranes, additional considerations exist such as work distribution between tower cranes and work interference in areas where lifting ranges overlap. However, since the lifting plan is established through a single optimization for cost minimization without considering work interference between tower cranes, the probability of work interference and collision between tower cranes increases, thereby reducing work productivity.

[0090] Although the details of the modular construction lifting plan management system and method according to the present invention have been described above through the embodiments of the present invention, the present invention is not limited only to the contents described in the above embodiments. Therefore, it is obvious that the present invention can be modified, changed, combined, and substituted in various ways by a person skilled in the art according to design needs and other various factors. Explanation of the symbols

[0092] 10. Modular Construction Lifting Plan Management System 11. Input Section 12. Data Processing Section 13. Output Section 14. Database Section 15. Communication Unit 16. Control Unit 21. Lifting Plan Establishment Department 22. Lifting Plan Management Department 30. Modular Construction Lifting Planning and Management Service Provision System 31. User terminal 32. Server

Claims

Claim 1 A modular construction lifting plan management system comprises: an input unit configured to perform processing to receive various data for establishing and managing a lifting plan for a modular construction project; a data processing unit configured to perform processing to establish and manage an optimal lifting plan for the modular construction project through Multi Objective Optimization based on data input through the input unit; and an output unit configured to perform processing to output various data including processing results processed by the data processing unit. The data processing unit comprises: a lifting plan establishment unit configured to perform processing to establish an optimal lifting plan for the modular construction project based on data input through the input unit; and a lifting plan management unit configured to perform processing to manage each task according to the lifting plan established through the lifting plan establishment unit. The lifting plan establishment unit comprises a data collection step in which processing to receive input data including various information about the modular construction project is performed through the input unit. A grid formation step in which a process is performed to generate an orthogonal coordinate system (X, Y) by gridging the site drawing based on the input data collected through the above data collection step; and a multi-objective optimization algorithm using the number of tower cranes as an input variable and the specifications and locations of the tower cranes as output variables,An optimization step in which initial values ​​are set according to predetermined settings and a process is performed to derive an optimal solution for the specifications and location of each tower crane; an iteration step in which the optimization process is repeated while varying the number of tower cranes until a predetermined maximum number is satisfied; a lifting plan establishment step in which optimization is stopped when the set maximum number is reached and a process is performed to establish an optimal Tower Crane Lift Plan (TCLP) by comparing each optimal solution according to predetermined settings; and a data output step in which a process is performed to output output data including each optimal solution and the established lifting plan. The system is configured to perform a process including a database construction step in which the above input data and above output data are stored in a database format to construct a database related to the lifting plan of modular construction; the lifting plan management unit is configured to allocate workload, personnel, and processes based on the lifting plan created through the lifting plan establishment unit so that all processes can be processed within the same working time; and the system is configured so that the processing of constructing, visualizing, and managing each work schedule for repetitive tasks of floor-by-floor modular construction using the TACT technique is automatically performed by an artificial intelligence algorithm; the above input data includes building information including the height of the target building and the location of core walls; site information including dimensions and site facilities; tower crane information including the number of tower cranes, installation location, specifications (minimum distance, maximum hook height, travel speed, maximum working radius), rental cost, and fixed cost; trailer installation location information; and the modular unit's It is configured to include information on lifting and installation locations, and information on the size and weight of the modular unit, and the output data is,It is configured to include the optimal number, specifications, and location of tower cranes, total cost, conflict area, task allocation and operating time of each tower crane, and the optimal trailer location; the optimization step is configured to perform a process of deriving the optimal solution using the Multi-Objective Genetic Algorithm or the NSGA-II (Non-dominated Sorting Genetic Algorithm-II) algorithm as the multi-objective optimization algorithm; the modular construction lifting plan management system is implemented as a separate system linked with the PMIS (Project Management Information System) to assist the functions of the PMIS and exchange information between systems through the transmission and reception of various information, thereby providing a function to collect detailed data on management elements of modular construction, resource input for the production and construction of unit modules, and work details, enabling the establishment and management of lifting plans for modular construction; the modular construction lifting plan management system is configured to include data input through the input unit and the The system is further configured to include: a database unit for storing various data obtained as a result of processing by a data processing unit; a communication unit configured to perform processing for transmitting and receiving various data with external devices, including each user terminal or server, through at least one method of wired or wireless communication; and a control unit configured to perform processing for controlling the overall operation of the system, wherein the input unit is configured to perform processing for directly receiving various data through a separate input means or receiving various data from the outside via wired or wireless through the communication unit, and the data processing unit stores various data obtained as a result of processing in the database unit, while simultaneouslyA modular construction lifting plan management system characterized by being configured to perform a process of transmitting to an external device or a separate storage device through the communication unit according to a predetermined setting, and the output unit being configured to perform a process of visually displaying each processing step and processing result through a separate display means including a monitor or display, or further including a voice output means including a speaker to perform a process of transmitting various information by voice. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 delete Claim 8 delete Claim 9 delete Claim 10 delete Claim 11 delete Claim 12 A modular construction lifting plan management method configured to perform a process of establishing and managing a lifting plan using a modular construction lifting plan management system described in claim 1, comprising: a data collection step in which a process of receiving various data regarding a modular construction project is performed through an input unit of the modular construction lifting plan management system; a lifting plan establishment step in which a process of establishing an optimal lifting plan using a Multi Objective Optimization algorithm based on the data collected through the data collection step is performed through a data processing unit of the modular construction lifting plan management system; and a lifting plan management step in which a process of creating and managing a work schedule using a TACT technique according to the lifting plan established in the lifting plan establishment step is performed through a data processing unit of the modular construction lifting plan management system, wherein the modular construction lifting plan management method is configured in the form of a computer program configured to execute the processing steps of the data collection step, the lifting plan establishment step, and the lifting plan management step on a computer. Claim 13 delete Claim 14 A modular construction lifting plan and management service provision system comprises: a user terminal for each user to input various information for establishing and managing a lifting plan for a modular construction project and to receive processing results; and a server configured to perform processing to establish a lifting plan for each task of a modular construction project based on information input through each of the user terminals and to manage each task according to the established lifting plan, wherein the server is configured to perform processing to establish and manage a lifting plan using the modular construction lifting plan management system described in claim 1, and wherein the user terminal is configured by installing a dedicated program linked to the server on an information processing device including a PC or a laptop, or by installing a dedicated application program linked to the server on a personal portable information processing terminal including a smartphone or a tablet PC. Claim 15 delete

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