JP2021156016A - Construction work supporting system and construction work supporting method - Google Patents

Abstract

To improve efficiency of scaffolding building works in a construction site.SOLUTION: A construction work supporting system 10 supports works in a construction site. A scaffolding information storing unit 120A stores scaffolding information including multiple kinds of scaffolding configurations. A point cloud data obtaining unit 122 obtains three-dimensional point cloud data of the construction site via a laser scanner. A data comparing unit 124 compares a BIM model that is three-dimensional design data of a construction object and the three-dimensional point cloud data. A scaffolding information presenting unit 126 extracts scaffolding information related to the contents of works to be conducted in the construction site in the future based on a comparison result provided by the data comparing unit 124, and shows it to workers who engage in the works in the construction site.SELECTED DRAWING: Figure 2

Description

The present invention relates to a construction work support system and a construction work support method that support work at a construction site.

At construction sites, scaffolding is routinely assembled according to the work to be carried out and dismantled after the work is completed.
For example, Patent Document 1 below is an invention relating to a temporary scaffolding structure for construction, and forms two to four U-shaped receiving portions that are erected in the vertical direction and inserted and connected in the vertical direction. The vertical support is provided with a vertical support for which the connection receiving portion is arranged, and a horizontal support having insertion engaging portions at both ends to be inserted and connected to the connection receiving portion of the vertical support. , A connecting portion in which a U-shaped receiving portion and the U-shaped receiving portion are continuously formed on a metal plate in a plan view, and a column main body and an oval hole, a circular hole, and a triangular hole of a vertical column provided in the connecting portion. It has a structure welded using any one or more of a rectangular hole and a slit.

Japanese Patent No. 5735620

When installing a scaffold, the work manager or the like may instruct the worker performing the installation work on the shape of the scaffold and how to assemble it. However, since it is difficult to explain the shape of the scaffold with two-dimensional information such as photographs and drawings, it may take time to explain, and a communication gap with the worker is likely to occur. In addition, the shape of the scaffold differs depending on the state of the site and the work content at that time, and appropriate photographs and drawings are not always prepared. The present invention was made in view of such circumstances. The purpose is to improve the efficiency of scaffolding installation work at construction sites.

In order to achieve the above object, the construction work support system according to the present invention is a construction work support system that supports work at a construction site, and is a scaffold information storage unit that stores scaffold information including a plurality of types of scaffold shapes. And a point group data acquisition unit that acquires the three-dimensional point group data of the construction site by a laser scanner, and a data comparison unit that compares the three-dimensional design data of the construction object at the construction site with the three-dimensional point group data. And, based on the comparison result of the data comparison unit, the scaffolding information suitable for the work content to be carried out at the construction site in the future is extracted from the scaffolding information storage unit, and the worker engaged in the work at the construction site. It is characterized in that it is provided with a scaffolding information presentation unit to be presented to.
The construction work support method according to the present invention is a construction work support method for supporting work at a construction site, and is a scaffold information storage unit that stores scaffold information including a plurality of types of scaffold shapes, and the construction site using a laser scanner. In the point group data acquisition step of acquiring the three-dimensional point group data of the above, a data comparison step of comparing the three-dimensional design data of the construction object at the construction site with the three-dimensional point group data, and the data comparison step. Based on the comparison result, the scaffold information presentation step of extracting the scaffold information suitable for the work contents to be carried out at the construction site from the scaffold information storage unit and presenting it to the workers engaged in the work at the construction site. It is characterized by including.

According to the present invention, the efficiency of scaffolding installation work at a construction site can be improved.

It is a figure which shows the outline structure of the construction work support system which concerns on embodiment. It is a block diagram which shows the functional structure of a construction work support system. It is a figure which shows the flow of work support in a construction work support system.

Hereinafter, preferred embodiments of the construction work support system and the construction work support method according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a diagram showing an outline configuration of a construction work support system according to an embodiment.
The construction work support system 10 manages the work progress at the construction site. The construction site may be a construction site such as a building, an apartment, or a warehouse, or a civil engineering construction site such as a dam, a bridge, or a tunnel.
The construction work support system 10 includes a work support device 12, an automatic patrol mobile body 14 (14A, 14B), and a design data creation device 16.

The work support device 12 includes a CPU, a ROM for storing and storing a control program, a RAM as an operating area for the control program, an EEPROM for holding various data in a rewritable manner, an interface unit for interfacing with peripheral circuits, and the like. It is a computer composed of.
The work support device 12 is installed in the vicinity of a construction site such as a management building of a construction site, and is used by workers and work managers at the construction site. Although the work support device 12 is shown as a notebook personal computer in FIG. 1, it may be a desktop personal computer, a tablet terminal, or the like.

The automatic patrol mobile body 14 (14A, 14B) is equipped with a laser scanner 18 and automatically patrols the construction site. For example, the automatic patrol moving body 14 has a patrol route that patrols the construction site, and the laser scanner 18 is used at a predetermined scanning point while confirming the current position by a beacon or GPS installed in the construction site. Scan the surroundings and acquire point cloud data in the construction site.

In FIG. 1, a drone 14A and a trolley robot 14B are illustrated as an example of the automatic patrol mobile body 14, but various conventionally known devices are used as the automatic patrol mobile body 14 as long as they are devices that can move autonomously. be able to. For example, the drone 14A may be used at a construction site (or a part of the building where the ceiling height is high) where a building with a high ceiling height is constructed, and the trolley robot 14B may be used at other sites.

The laser scanner 18 (three-dimensional laser scanner) irradiates the object to be measured with a laser radially, and the three-dimensional coordinates of the surface shape of the object to be measured based on the distance to the object to be measured and the irradiation angle obtained from the reflection time of the laser. To get. Although it depends on the performance of the laser scanner 18, it is possible to obtain high-density and surface point cloud data by measuring by non-contact at a speed of about tens of thousands of points per second.
Further, an image is taken at the measurement point by the camera built in the laser scanner 18, and the point group data is colored according to the color of the image and the reflection intensity of the laser (the degree of reflection of the laser that changes depending on the material and color of the measurement target). You can also do it.
In addition, even on the back side of a measurement target or a wide area where measurement cannot be performed from one place, it is possible to combine a plurality of scan data with a target as a common point and to coordinate coordinates.

In the present embodiment, the automatic patrol moving body 14 automatically patrols the construction site and acquires the point group data of each part of the construction site. However, the present invention is not limited to this, and for example, a worker at the construction site uses the laser scanner 18. You may carry it around the construction site, perform scanning work at a predetermined point, and acquire point group data of each part of the construction site.
Further, instead of automatically patrolling the drone 14A and the trolley robot 14B, the patrolling and scanning operations may be performed by remote control.

Similar to the work support device 12, the design data creation device 16 includes a CPU, a ROM for storing and storing control programs, a RAM as an operating area for control programs, an EEPROM for holding various data in a rewritable manner, peripheral circuits, and the like. It is a computer that includes an interface unit that takes the interface of.
Although the design data creation device 16 is shown as a desktop personal computer in FIG. 1, it may be a notebook personal computer or the like.

The design data creation device 16 is installed, for example, in a business operator or the like that undertakes construction work, and is used for creating design data of a construction object at a construction site. More specifically, a design application is installed in the design data creation device 16, and three-dimensional design data as a design drawing or a construction drawing of a building object is created by the operation of the designer.
The design data creation device 16 stores past design data 160 (see FIG. 2), which is design data (BIM model described later) of a building constructed in the past. The designer searches the past design data 160 for the three-dimensional design data of the construction similar to the construction object this time, partially reuses the similar parts, or performs the design work while referring to them. As a result, the design work can be made more efficient.

In this embodiment, a BIM (Building Information Modeling) model is used as the three-dimensional design data.
BIM utilizes a building database in each phase of construction work, in which attribute data such as cost, finish, and management information are added to a digital model of a three-dimensional building created on a computer. The BIM model includes a member model of each member (part) constituting the construction object. In addition to the dimensions (width, depth, height, etc.) of the member, the member model can also include the material and the assembly process (time).
The three-dimensional design data is not limited to the BIM model, and may be any format data as long as the same function can be realized.

In the present embodiment, each member model constituting the BIM model includes scaffolding information (scaffolding information) used in the construction of the member. That is, the scaffolding information is included in the BIM model.
The scaffolding information includes at least one of the shape and dimensions of the scaffold, the installation position (positional relationship and distance with the member), the model number of the member used, the assembly procedure, and the type of work suitable for the scaffold. For example, the shape of the scaffold is preferably shown in a three-dimensional model, a photograph, a drawing, or the like. Further, the assembling procedure is shown, for example, by a moving image using a three-dimensional model, a moving image showing an actual assembling work, or the like. The type of information included in the scaffolding information is arbitrary, but it is preferable that at least the shape of the scaffolding is included.

In the present embodiment, the scaffolding information is included in the BIM model in the past design data 160. For example, by diverting the data in the past design data 160 when creating the BIM model, the BIM model newly created is included. Can also include scaffolding information.
More specifically, when the designer creates a BIM model of a building object, a part similar to the BIM model in the past design data 160 is partially reused or referred to. At this time, if scaffolding information is registered in the component parts of the reused part (or reference part) of the BIM model, the BIM created this time is created by importing the data into the same type of parts of the BIM model currently being created. Scaffolding information can be included in the model.
Further, for example, the design application may be provided with a function of extracting scaffolding information in past data having a high degree of similarity to the construction object currently being designed. The designer includes the scaffolding information extracted as needed in the member model in the BIM model to be designed this time. The high degree of similarity is, for example, when the purpose, type, structure, user class, and owner of the building are common.

FIG. 2 is a block diagram showing a functional configuration of the construction work support system.
The work support device 12 functions as a point cloud data acquisition unit 122, a data comparison unit 124, a scaffolding information presentation unit 126, and a scaffolding information registration unit 128 when the CPU executes the control program.
In addition, the EEPROM, which is the storage area (storage) of the work support device 12, stores a BIM model including scaffolding information for work at a construction site. That is, the storage area of the work support device 12 functions as the BIM model storage unit 120 and the scaffolding information storage unit 120A.
The storage location of the BIM model and the scaffolding information is not limited to the work support device 12, and may be an external storage or the like accessible to the work support device 12.

The BIM model storage unit 120 stores a BIM model which is three-dimensional design data of a construction object at a construction site. As described above, the BIM model includes a member model of each member (part) constituting the construction object, and each member model includes scaffolding information (scaffolding information data) regarding a scaffold suitable for the work dealing with each member. ) Is included. Therefore, the BIM model storage unit 120 also serves as a scaffolding information storage unit 120A that stores scaffolding information including a plurality of types of scaffolding shapes.

The point cloud data acquisition unit 122 acquires the three-dimensional point cloud data of the construction site acquired by the laser scanner 18. In the present embodiment, the point cloud data acquisition unit 122 stores the three-dimensional point cloud data acquired by the laser scanner 18 during the automatic patrol (or patrol by the worker) of the automatic patrol moving body 14 in the memory of the laser scanner 18. The 3D point cloud data of the construction site is acquired by reading from or transmitting from the laser scanner 18. The acquired three-dimensional point cloud data is stored in the storage area of the work support device 12, and is used for various processes described below.

The data comparison unit 124 compares the BIM model (three-dimensional design data of the construction object at the construction site) with the three-dimensional point cloud data acquired by the point cloud data acquisition unit 122.
Since the BIM model includes all the members that make up the construction object, there should be members corresponding to each point even when compared with the 3D point cloud data during construction.
For example, when the point cloud data obtained by scanning the wall with the core material exposed is compared with the BIM model, the position of the core material scanned as the point cloud and the position of the core material on the BIM model are substantially the same.
Therefore, the data comparison unit 124 compares the three-dimensional point cloud data corresponding to the same region on the construction site with the BIM model, and determines whether or not the point cloud exists in the existence range of each member.

Then, the data comparison unit 124 classifies each member model (each member constituting the construction object) constituting the BIM model into the following three states.
1. 1. Not started: Point cloud data does not exist in the existence range of the part of interest.
2. Completion: The error between the shape of the part of interest and the shape of the point cloud data of the relevant part is within a predetermined range.
3. 3. Work in process: The error between the shape of the part of interest and the shape of the point cloud data of the relevant part is not within the predetermined range, but the point cloud data exists in the existence range of the part of interest.
In addition, in order to prevent an error in the classification determination, the classification result of the member (especially about "completion") by the data comparison unit 124 is approved after the work manager or the like actually confirms the work status of the member. May be good.

The scaffolding information presentation unit 126 extracts scaffolding information suitable for the work content to be performed at the construction site in the future from the scaffolding information storage unit 120A based on the comparison result of the data comparison unit 124, and engages in the work at the construction site. Present to workers.
The scaffolding information presentation unit 126 extracts scaffolding information registered in the component models classified into, for example, the above-mentioned "work in process" and "unstarted". The work manager (or worker) selects the scaffolding information to be presented on the day from the extracted scaffolding information according to the work progress status at the site. Further, for example, the scaffolding information presenting unit 126 identifies a member to be worked on the day based on a predetermined work schedule (work schedule data registered in the work support device 12), and scaffolding information associated with this member. May be extracted.

Further, the scaffolding information presentation unit 126 presents the extracted scaffolding information to the workers engaged in the work at the construction site.
The scaffolding information presentation unit 126 displays the scaffolding information on the BIM model three-dimensionally displayed on the display 12A of the work support device 12, for example. It is preferable to display the scaffolding model on the BIM model so that the shape, dimensions, and installation position (positional relationship and distance with the member) of the scaffolding can be grasped three-dimensionally.
In addition, as a method of presenting scaffolding information by the scaffolding information presenting unit 126, for example, scaffolding information is transmitted to a mobile information terminal carried by each worker, various conventionally known methods can be adopted.

The scaffolding information registration unit 128 associates new scaffolding information with the member model in the BIM model.
In the present embodiment, the scaffolding information registration unit 128 extracts the point cloud corresponding to the scaffolding from the three-dimensional point cloud data acquired by the point cloud data acquisition unit 122, and stores the scaffolding information corresponding to the scaffolding in the scaffolding information storage. Store in unit 120A.
More specifically, in the present embodiment, the three-dimensional point cloud data acquired by scanning the construction site is subjected to predetermined preprocessing before comparison with the BIM model. Pre-processing is the process of deleting unnecessary parts (point clouds) corresponding to temporary handrails, scaffolds, temporary placement materials, etc. from 3D point cloud data, and the coordinate system (origin) between 3D point cloud data and BIM data. , Scale, direction). When the scaffolding information registration unit 128 removes the point cloud corresponding to the scaffolding in this process, the scaffolding information registration unit 128 selects the parts constructed using the scaffolding (received the selection from the worker or the like), and provides information such as the shape of the scaffolding. Link as scaffolding information.
Such registration processing may be performed manually by, for example, a worker, a work manager, or the like. For example, the scaffolding information registration unit 128 learns the shape features of the scaffolding by machine learning and automatically performs the scaffolding from the point group data. It may be carried out by extracting the target.
Further, when the scaffolding information registration unit 128 receives the registration of new scaffolding information, for example, the scaffolding information registration unit 128 updates the BIM model of the construction object stored in the past design data 160 of the design data creation device 16, and designs from the next time onward. The scaffolding information registered this time may be reflected in the data.

FIG. 3 is a diagram showing a flow of work support in the construction work support system.
The designer creates a BIM model (three-dimensional design data) of the construction target this time while using the past design data 160 (including scaffolding information) of the design data creation device 16 (step S300). The created BIM model is stored in the work support device 12 installed at the construction site of the construction object (step S302). The BIM model is also stored in the design data creation device 16 as the past design data 160.

When the construction work starts, the automatic patrol moving body 14 periodically patrols the construction site, scans the surroundings with the laser scanner 18, and acquires the point cloud data in the construction site (step S304). As described above, this step is not an automatic patrol, but a worker or the like may patrol the construction site with the laser scanner 18.

Next, the point cloud data acquisition unit 122 of the work support device 12 (work support device) reads the point cloud data acquired by the laser scanner 18, and the point cloud data at the time of this scan (hereinafter referred to as "this scan data") and Image data is acquired (step S306). Steps S304 and S306 correspond to the point cloud data acquisition step.

The acquired scan data this time is subjected to preprocessing such as noise removal and unification of coordinate axes as necessary (step S308).
At this time, if a new scaffold is found in the scan data this time, the scaffold information registration unit 128 associates the shape of the new scaffold with the member model in the BIM model as scaffold information (step S310: scaffold information registration step). .. Further, the scaffolding information registration unit 128 updates the BIM model of the construction object stored in the past design data 160 of the design data creation device 16 with the BIM model to which the scaffolding information is newly added, thereby causing the scaffolding information. Is reflected (step S312). The process of step S312 does not have to be performed immediately after step S310, and may be performed at an arbitrary timing such as after the work at the construction site is completed.

The data comparison unit 124 compares the scan data with the BIM model this time, and classifies each member in the BIM model into any of unstarted, completed, and in-process states (step S314: data comparison step).
Next, the scaffolding information presentation unit 126 extracts the scaffolding information registered in the component models classified into the above-mentioned "work in process" and "unstarted", and further selects the scaffolding information to be presented this time by the work manager ( Step S316). Then, the scaffolding information presenting unit 126 displays the scaffolding information on the BIM model three-dimensionally displayed on the display 12A of the work support device 12, for example (step S318). The work manager or the like gives an instruction to the worker to create a scaffold while looking at the display 12A, for example. Further, the worker may directly look at the display 12A to check the shape of the scaffolding and the like.

As described above, the construction work support system 10 according to the embodiment is the work to be carried out in the future based on the comparison result between the three-dimensional design data of the construction object and the three-dimensional point cloud data of the actual construction site. Present scaffolding information related to the content. Therefore, it is possible to present objective materials to the workers when installing the scaffolding, which is advantageous in improving the work efficiency at the construction site.
At construction sites, different work is done every day, and the required scaffolding is different each time. Therefore, it may be difficult for workers and work managers to completely grasp what kind of scaffolding is appropriate in the field. By providing scaffolding information with the construction work support system 10, it is possible to install an appropriate scaffolding even if there is little on-site experience of workers, work managers, etc., which is advantageous in improving productivity at the construction site. It becomes.
Further, in the present embodiment, since the scaffolding information is associated with the member model of the three-dimensional design data, the scaffolding information can be set for each member, and the scaffolding information suitable for the situation at the site can be provided accurately. It will be advantageous.
Further, by diverting the three-dimensional design data when designing another building, the scaffolding information can be easily taken over, which is advantageous in reducing the burden on the work manager, the designer, and the like.
Further, if the three-dimensional point cloud data is acquired by the automatic patrol moving body 14 as in the present embodiment, the burden on the workers and the like is increased as compared with the case where the workers and the like patrol the construction site and perform scanning. It is advantageous in reducing and improving the efficiency of construction work.

10 Construction work support system 12 Work support device 120 BIM model storage unit 120A Scaffolding information storage unit 122 Point group data acquisition unit 124 Data comparison unit 126 Scaffolding information presentation unit 128 Scaffolding information registration unit 14 Automatic patrol moving body 16 Design data creation device 160 Past design data 18 Laser scanner

Claims (6)

A construction work support system that supports work at construction sites.
A scaffolding information storage unit that stores scaffolding information including the shapes of multiple types of scaffolding,
A point cloud data acquisition unit that acquires 3D point cloud data at the construction site using a laser scanner,
A data comparison unit that compares the 3D design data of the construction object at the construction site with the 3D point cloud data,
Based on the comparison result of the data comparison unit, the scaffolding information suitable for the work content to be carried out at the construction site in the future is extracted from the scaffolding information storage unit and presented to the workers engaged in the work at the construction site. Scaffolding information presentation department and
A construction work support system characterized by being equipped with. A scaffolding information registration unit that extracts a point cloud corresponding to a scaffold from the three-dimensional point cloud data acquired by the point cloud data acquisition unit and stores the scaffolding information corresponding to the scaffolding in the scaffolding information storage unit is further added. Prepare, prepare
The construction work support system according to claim 1, wherein the construction work support system is characterized in that. The three-dimensional design data includes a member model of each member constituting the construction object.
The scaffolding information is associated with the individual member model.
The construction work support system according to claim 1 or 2, wherein the construction work support system is characterized in that. The scaffold information includes at least one of the scaffold shape, dimensions, assembly procedure, and the type of work that fits the scaffold.
The construction work support system according to any one of claims 1 to 3, wherein the construction work support system is characterized in that. The construction work support system according to any one of claims 1 to 4, wherein the laser scanner is mounted and an automatic patrol moving body that automatically patrols the construction site is further provided. It is a construction work support method that supports work at a construction site.
A scaffolding information storage unit that stores scaffolding information including the shapes of multiple types of scaffolding,
A point cloud data acquisition process for acquiring 3D point cloud data at the construction site using a laser scanner, and
A data comparison process for comparing the 3D design data of the construction object at the construction site with the 3D point cloud data, and
Based on the comparison result in the data comparison step, the scaffolding information suitable for the work contents to be carried out at the construction site in the future is extracted from the scaffolding information storage unit, and the worker engaged in the work at the construction site is provided. The scaffolding information presentation process to be presented and
A construction work support method characterized by including.

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