KR102152251B1 - Apparatus and method for converting BIM data into disaster-safe spatial data - Google Patents

Abstract

Disclosed are a device and a method for extracting only essential data for constructing a disaster-safety spatial model from building information modeling (BIM) data representing a building and converting the essential data into disaster-safety spatial data which can be quickly shared and utilized in a disaster situation. According to one embodiment, a conversion device for converting BIM data into disaster-safety spatial data comprises: a level definition unit defining level information by extracting the level information from the BIM data; a grid generation unit generating grid information by extracting attribute information and location information of wall objects among essential objects defining a space for each level from the BIM data; an object generation unit generating object information by extracting the attribute information and location information of the essential objects defining a space for each level from the BIM data; a space generation unit defining a space surrounded by the wall object using the grid information and generating spatial information; and an output unit outputting disaster-safety spatial data including the level information, the grid information, the object information, and the spatial information.

Description

Apparatus and method for converting BIM data into disaster-safe spatial data}

The present invention relates to Building Information Modeling (BIM), and more specifically, to an apparatus and method for extracting and converting essential data for constructing a disaster safety space model from BIM data representing a building.

BIM (Building Information Modeling) (e.g., IFC standard format) refers to the process of virtually modeling facilities in a multi-dimensional virtual space from planning, design, engineering (structure, facilities, electricity, etc.), to construction, and maintenance and disposal. . In particular, it enables the design and construction of state-of-the-art design and eco-friendly energy-low-cost buildings, which are recent issues, and is a concept similar to multidimensional virtual design construction (VDC). Recently, the scope of BIM's application internationally is not only in the construction field but also in all dry environments, so it is widely used in civil engineering and plant fields in Europe and the US.

Building of the BIM (Building Information Modeling) refers to the entire life cycle of the target building-design, construction, operation, and management, and information refers to all information included in the entire life cycle of the target building. , Modeling means an integrated tool and platform that provides the production, management, and publication of all information included in the entire life cycle. BIM converts buildings into data to create numerical data, and you can see a three-dimensional display effect. Recently, multi-use facility buildings (eg, large-scale buildings) or buildings built under construction and design orders from the Public Procurement Service have BIM data.

BIM data is very large. Therefore, there are many limitations to application and use in various services. In particular, in the case of a fire, earthquake, or other disaster, it is desirable for rescuers or victims to share building information through a network in order to quickly grasp the building information. It is not suitable for use as basic data for the same route guidance service. BIM data is a data format created for the purpose of using it as design or construction data, so a lot of post-processing process is required to use spatial information in spatial information utilization services such as maintenance services or disaster response services after completion. Therefore, in order to distribute building information in real time such as a disaster situation and to establish a disaster safety space model for road guidance services such as evacuation guidance, a building information format defined only with essential core information is required.

The present invention has been proposed to solve the above-described problems, and extracts only essential data for constructing a disaster safety space model from BIM data representing a building, so that it can be shared quickly and quickly and can be used in a disaster situation. An object thereof is to provide an apparatus and method for converting data into data.

A conversion apparatus for converting Building Information Modeling (BIM) data into disaster safety spatial data according to an embodiment includes: a level defining unit for defining level information by extracting level information from the BIM data; A grid generator for generating grid information by extracting attribute information and location information of wall objects among essential objects defining a space for each level from the BIM data; An object generator for generating object information by extracting attribute information and location information of essential objects defining a space for each level from the BIM data; A space generator for defining a space surrounded by wall objects using the grid information and generating space information; And an output unit for outputting disaster safety spatial data including the level information, the grid information, the object information, and the spatial information.

The conversion apparatus may further include a node generation unit that defines a node for defining a connection relationship between spaces using the object information and the spatial information, and generates connection relationship information between nodes.

The node generator may define a center of the space, a door among the essential objects, and a window satisfying a predetermined condition as nodes.

The grid generator extracts the center line on the plane of the wall object using coordinates and width information of the start and end points of the wall object, and uses the identification information of each center line, the coordinates of the start point, and the coordinates of the end point as grid information. Can be generated.

The object generator may generate object information including identification information of a wall object, identification information of a center line corresponding to the wall object, and at least one of a thickness, a height, and a material, for the wall object.

The object generation unit, for the door object, includes identification information of the door object, identification information of the wall object to which the door object belongs, and object information including at least one of position information, thickness, height, direction, and vertical position. Can be generated.

The object generation unit may generate object information including identification information of a window object, identification information of a wall object to which the window object belongs, and including at least one of location information, thickness, height, and vertical position, for the window object. I can.

The space generator may include, as space information, identification information of a space and identification information of wall objects defining a corresponding space.

A method of converting Building Information Modeling (BIM) data into disaster safety spatial data in a conversion apparatus according to an embodiment includes: defining level information by extracting level information from the BIM data; Generating grid information by extracting attribute information and location information of wall objects among essential objects defining a space for each level from the BIM data; Generating object information by extracting attribute information and location information of essential objects defining a space for each level from the BIM data; Defining a space surrounded by wall objects using the grid information and generating space information; And outputting disaster safety spatial data including the level information, the grid information, the object information, and the spatial information.

The method may further include defining a node for defining a connection relationship between spaces using the object information and the spatial information, and generating connection relationship information between the nodes.

In the generating the connection relationship information between the nodes, a center of the space, a door among the essential objects, and a window satisfying a predetermined condition may be defined as nodes.

In the generating of the grid information, the center line on the plane of the wall object is extracted using coordinates and width information of the start point and the end point of the wall object, and identification information of each center line, the coordinates of the start point and the coordinates of the end point Can be generated as grid information.

The generating of the object information includes, for the wall object, identification information of the wall object, identification information of a center line corresponding to the wall object, and generating object information including at least one of thickness, height, and material. can do.

The generating of the object information includes, for the door object, identification information of the door object, identification information of the wall object to which the door object belongs, and at least one of location information, thickness, height, direction, and vertical position. Object information can be created.

The generating of the object information includes, for a window object, identification information of a window object, identification information of a wall object to which the window object belongs, and an object including at least one of location information, thickness, height, and vertical position. Can generate information.

The generating of the spatial information may include, as spatial information, identification information of a space and identification information of wall objects defining a corresponding space.

Disaster safety spatial data generated according to the present invention is significantly reduced in capacity compared to BIM data representing a conventional building, so it can be quickly shared in a disaster situation, and it enables 2D or 3D modeling to cope with the disaster situation in real time. .

Conventionally, in order to use BIM data in a service that utilizes spatial information, many post-processing processes have to be performed, but the present invention can reduce cost and time by rapidly generating disaster safety spatial data from BIM data.

By using the disaster safety space data according to the present invention, when a disaster occurs, it is possible to respond quickly and effectively to a disaster situation, thereby reducing disaster damage.

1 is a diagram showing the configuration of a conversion device for converting BIM data into disaster safety space data according to an embodiment of the present invention.
2 is a view showing a plane space according to an embodiment of the present invention.
3 is a diagram illustrating a center line of a wall object in the planar space of FIG. 2.
4 is a view expressed by extracting only the center line of the wall object in FIG. 3.
5 is a diagram showing grid information of disaster safety space data according to an embodiment of the present invention.
6 is a diagram showing object information of disaster safety space data according to an embodiment of the present invention.
7 is a diagram showing spatial information of disaster safety spatial data according to an embodiment of the present invention.
8 is a diagram showing connection relationship information between nodes of disaster safety space data according to an embodiment of the present invention.
9 is a diagram showing connection relationship information between nodes of disaster safety spatial data on a plan view of a building according to an embodiment of the present invention.
10 is a flowchart illustrating a method of converting BIM data into disaster safety space data according to an embodiment of the present invention.
11 is a view comparing 3D modeling using conventional BIM data and 3D modeling using disaster safety spatial data of the present invention.

The above-described objects, features, and advantages will become more apparent through the following detailed description in connection with the accompanying drawings, whereby those of ordinary skill in the technical field to which the present invention pertains can easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing the configuration of a conversion device for converting BIM data into disaster safety space data according to an embodiment of the present invention. The conversion device according to the present embodiment may include a memory, a memory controller, one or more processors (CPU), peripheral interfaces, input/output (I/O) subsystems, a display device, an input device, and a communication circuit. The memory may include high-speed random access memory, and may also include one or more magnetic disk storage devices, nonvolatile memory such as flash memory devices, or other nonvolatile semiconductor memory devices. Access to memory by other components such as the processor and peripheral interfaces can be controlled by the memory controller. The memory can store various types of information and program instructions, and programs are executed by the processor. The peripheral interface connects the input/output peripheral devices with the processor and memory. One or more processors execute various software programs and/or sets of instructions stored in memory to make the system perform various functions and process data. The I/O subsystem provides an interface between input and output peripherals, such as display devices and input devices, and peripheral interfaces. The communication circuit performs communication through an external port or by an RF signal. The communication circuit converts the electrical signal to an RF signal or vice versa, through which it can communicate with a communication network, other mobile gateway devices and communication devices. As shown in FIG. 1, the conversion apparatus according to the present embodiment includes a level definition unit 110, a grid generation unit 120, an object generation unit 130, a space generation unit 140, and a node generation unit 150. ) And an output unit 160. The level definition unit 110, the grid generation unit 120, the object generation unit 130, the space generation unit 140, the node generation unit 150, and the output unit 160 are implemented as a program and stored in a memory and a processor Can be implemented by Preferably, the program can be executed as an add-on program on a BIM program (eg, Revit program).

The level definition unit 110 scans BIM data loaded from a BIM program or BIM data stored in a storage device and extracts level information indicating floor-specific information (eg, the number of floors, the height from the ground, etc.) It is defined as the upper layer of the data format. Preferably, the level definition unit 110 sets the name of the building as the highest level and defines level information in the next higher level below the building name. When the building consists of a plurality of floors, the level definition unit 110 defines level information for each floor, respectively. Level information includes level ID, name (eg 1st floor), height from the ground, etc.

The grid generation unit 120 scans attribute information and location information of a wall object among essential objects defining a space for each level defined by the level definition unit 110 from the BIM data, and scans the corresponding wall objects. Grid information is created by expressing them all in one line. In BIM data, objects are classified into category items, and attribute information and location information are defined as family items. The grid generation unit 120 classifies wall objects using category items of BIM data, and extracts attribute information and location information of wall objects from the family item. The grid can be defined as a set of corresponding lines when wall objects defining a space are expressed in a plan view.

The grid generator 120 may define a center line of wall objects defining a space as a line of each object. The grid generator 120 may extract a center line on a plane by using coordinates and width information of the start point and the end point of the wall object from the BIM data. The grid generator 120 assigns an ID to each line in the disaster safety space data and defines coordinates of the start point and the end point of the line as location information.

FIG. 2 is a diagram showing a planar space according to an embodiment of the present invention, FIG. 3 is a diagram representing a center line of a wall object in the planar space of FIG. 2, and FIG. 4 is a center line of the wall object in FIG. It is a drawing expressed by extracting only. As shown in FIG. 2, the flat space is composed of walls, doors, and windows, and these walls, doors, and windows are essential objects of the disaster safety space. Although the windows and doors are separately marked in FIG. 2, the windows and doors are included in the wall. As shown in FIG. 3, the wall object is expressed as a line in a plan view, and in particular, a center line 310. When the line of FIG. 3 is extracted, as shown in FIG. 4, center lines 310a, 310b, 310c, and 310d of the four wall objects are defined.

5 is a diagram showing grid information of disaster safety space data according to an embodiment of the present invention. As shown in FIG. 5, level information 510 is set at the highest level in the structure of the disaster safety space data, and grid information 520 is set below it. In the level information 510, identification information (Level id), name (eg, first floor), and height (eg, height from the ground, 0) of the corresponding level are defined. The grid information 520 includes information on a line of each wall object. For example, identification information (g1) 521 and position information 522 of each line are defined. In the location information 522, coordinates of a start point and coordinates of an end point are set.

The object generation unit 130 scans the BIM data for attribute information and location information of essential objects defining a space for each level, and generates each object information in the disaster safety space data. Here, the object information includes an ID of an object, a grid ID corresponding to the object, and/or an ID of a wall object associated with the object, and attribute information. In BIM data, objects are classified into category items, and attribute information and location information are defined as family items. The object creation unit 130 classifies essential objects by using the category items of BIM data and extracts attribute information and location information from the family items.

In the case of a wall object, the object creation unit 130 defines the ID of the wall, maps a pre-generated grid ID corresponding to the wall, and as attribute information, the wall height, the wall thickness, and/or the wall Material can be defined. In the case of a door object, the object creation unit 130 defines the door ID, maps the ID of the wall object to which the door belongs, and as attribute information, the door position, door direction, width, height, and/or vertical height ( For example, a height based on the ground clearance of the floor) can be defined. In the case of a window object, the object creation unit 130 defines the ID of the window, maps the ID of the wall object to which the window belongs, and as attribute information, the position of the window, the direction of the window, the width, the height, and/or You can define a vertical height (eg, a height based on the ground clearance of the floor).

6 is a diagram showing object information of disaster safety space data according to an embodiment of the present invention. As shown in FIG. 6, the wall object 610 has an ID of a wall and an ID of a grid 611 defined, and as attribute information, a wall thickness 612, a height 613, Material 614 and the like are included. In the case of the door object 620, the door ID and the ID 621 of the wall object to which the door belongs are defined, and as attribute information 622, a location (point) (for example, the center of the door), a direction, and a width It includes (Width), height (Height), vertical height (Elevation) (e.g., the height based on the ground clearance of the floor). In the case of the window object 630, the ID of the window and the ID 631 of the wall object to which the window belongs are defined, and as attribute information 632, a point (for example, the center of the window), and a direction , Width, height, and vertical height (eg, the height based on the ground clearance of the floor).

The space generation unit 140 defines a space surrounded by wall objects by using the grid information defined by the grid generation unit 120 and generates space information in the disaster safety space data. A space surrounded by wall objects may be recognized as a room, a corridor, a lobby, or a staircase in the future. Preferably, the space generation unit 140 defines an ID and a name of a space, and maps the IDs of wall objects defining the space. 7 is a diagram showing spatial information of disaster safety space data according to an embodiment of the present invention. As shown in FIG. 7, the name'room1' is defined for a space surrounded by any of four wall objects, 'S1' is defined as the ID, and the four wall objects w1, w2, w3, and w4 forming the space are mapped. In this way,'room2' and'room3' are also created.

The node generation unit 150 generates connection relationship information between nodes while defining a node as information for defining a connection relationship between spaces using information generated by the object generation unit 130 and the space generation unit 140 do. Nodes may be defined to represent a closed space included in a building, that is, a space created by the space generator 140 and a window or door. For example, a node corresponding to the closed space may be defined at the center of a closed space (eg, a room), and another node may be defined at the door (center of) of the closed space, or a height at which a person can enter or exit And another node may be defined in a window having a size (the center of). The node generation unit 150 generates such nodes and connection relationship information of the nodes in the disaster safety space data. The connection relationship information of these nodes can be used as a spatial connection relationship that can be used for evacuation in case of disaster.

8 is a diagram showing connection relationship information between nodes of disaster safety space data according to an embodiment of the present invention. Referring to FIG. 8, for example, a node with an ID of'n1' is defined at (O, 200) coordinates, and the node of'n1' is connected to a node with an ID of'n2'. . In addition, a node with an ID of'n2' is defined at coordinates (200, 50), and the node of'n2' is connected to a node with an ID of'n1' and a node with an ID of'n3'.

If necessary, the node generation unit 150 may generate connection relationship information between nodes by further generating virtual nodes for connection of respective nodes. The virtual node may mean a node that can be arbitrarily added to easily define a topological relationship of space, for example, when two nodes are not connected in a straight line by a wall or another object. The node generator 150 may select the location of the virtual node from among locations that can connect the specific node and a predetermined node (eg, a node closest to the specific node) in a predetermined manner.

9 is a diagram showing connection relationship information between nodes of disaster safety spatial data on a plan view of a building according to an embodiment of the present invention. In the planar structure of the space as illustrated in FIG. 9, a predetermined position corresponding to each space and door may be defined as a node. Of course, as described above, the window may also be defined as a node if it satisfies a predetermined criterion as needed. Each node may be positioned at the center of a space or door, for example. In the plane illustrated in FIG. 9, nodes (eg, N2, N3, N4, N8) are defined in each space, and nodes (eg, N1, N5, N6, N7) corresponding to a door are defined. In addition, as described above, virtual nodes (eg, N9, N10) may be additionally defined as necessary. The virtual node may be randomly assigned according to a predefined criterion, or may be limitedly generated in a predetermined case. For example, when a specific node cannot be directly connected with any other nodes without intersecting the grid, a virtual node may be defined at a predetermined location. Of course, even if this is not the case, it is possible to more flexibly define a virtual node by setting a virtual node based on a predetermined standard.

When the generation of level information, grid information, object information, spatial information, and connection relationship information between nodes is completed, the output unit 160 outputs disaster safety spatial data in, for example, XML format. The disaster safety space data output from the output unit 160 may be rendered through a viewer to be implemented as a 3D virtual space. The viewer expresses the grid for each floor through grid information, and uses object information such as location, height, width, height from the floor of the floor, and materials to place objects on the grid, and wall, window, door, etc. Represents the object of In addition, spatial information is expressed for each space using spatial information. In the event of a disaster such as a fire, it can be used to calculate and guide a route such as a fire evacuation route using the connection relationship information between nodes.

10 is a flowchart illustrating a method of converting BIM data into disaster safety space data according to an embodiment of the present invention.

Referring to FIG. 10, in step S1001, the conversion device scans BIM data loaded from a BIM program or BIM data stored in a storage device to indicate floor-specific information (eg, the number of floors, the height from the ground, etc.) Is extracted and defined as the upper layer of the disaster safety spatial data format. Preferably, the conversion device sets the name of the building to the highest level and defines the level information in the next higher level of the structure. When a building consists of a plurality of floors, the conversion device defines level information for each floor, respectively. Level information includes level ID, name (eg 1st floor), height from the ground, etc.

In step S1002, the conversion device scans attribute information and location information of a wall object among essential objects defining a space for each of the defined levels from the BIM data, and converts all the wall objects into one line. To generate grid information. In BIM data, objects are classified into category items, and attribute information and location information are defined as family items. The conversion device classifies wall objects using category items of BIM data, and extracts attribute information and location information of wall objects from the family item. The grid can be defined as a set of corresponding lines when wall objects defining a space are expressed in a plan view.

In an embodiment, the conversion device may define a center line of wall objects defining a space as a line of each object. The conversion device may extract a center line on a plane by using coordinates and width information of the start and end points of the wall object from the BIM data. The conversion device assigns an ID to each line in the disaster safety spatial data and defines the coordinates of the start point and the end point of the line as location information.

In step S1003, the conversion device scans the BIM data for attribute information and location information of essential objects defining a space for each level to generate each object information in the disaster safety space data. Here, the object information includes an ID of an object, a grid ID corresponding to the object, and/or an ID of a wall object associated with the object, and attribute information. The conversion device classifies essential objects using the category items of BIM data and extracts attribute information and location information from the family items.

In one embodiment, the conversion device, in the case of a wall object, defines the ID of the wall, maps a pre-generated grid ID corresponding to the wall, and as attribute information, the height of the wall, the thickness of the wall, and/or the wall The material of can be defined. In the case of a door object, the conversion device defines the door ID, maps the ID of the wall object to which the door belongs, and as attribute information, the door position, door direction, width, height, and/or vertical height (e.g., corresponding floor The height based on the ground clearance) can be defined. In the case of a window object, the conversion device defines the ID of the window, maps the ID of the wall object to which the window belongs, and, as attribute information, the position of the window, the direction of the window, the width, the height, and/or the vertical height (e.g. , The height based on the ground clearance of the floor) can be defined.

In step S1004, the conversion device defines a space surrounded by the wall object by using the grid information defined in step S1001, and generates space information in the disaster safety space data. Preferably, the conversion device defines the ID and name of the space, and maps the ID of the wall objects defining the space.

In step S1005, the conversion device generates connection relationship information between nodes while defining a node as information for defining a connection relationship between spaces using the object information generated in step S1003 and the spatial information generated in step S1004. . The nodes may be defined to represent a closed space included in the building, that is, a space created in step S1004 and a window or door. For example, a node corresponding to the closed space may be defined at the center of a closed space (eg, a room), and another node may be defined at the door (center of) of the closed space, or a height at which a person can enter or exit And another node may be defined in a window having a size (the center of). The conversion device generates these nodes and connection relationship information of the nodes in the disaster safety space data.

In one embodiment, the conversion device may generate connection relationship information between nodes by further creating a virtual node for connection of each node, if necessary. The virtual node may mean a node that can be arbitrarily added to easily define a topological relationship of space, for example, when two nodes are not connected in a straight line by a wall or another object. The conversion apparatus may select the location of the virtual node in a predetermined manner from among locations capable of connecting the specific node and a predetermined node (eg, a node closest to the specific node).

In step S1006, when the generation of level information, grid information, object information, spatial information, and connection relationship information between nodes is completed, the conversion device outputs disaster safety spatial data in, for example, XML format. Disaster safety space data can be rendered through a viewer and implemented as a three-dimensional virtual space.In the event of a disaster such as a fire, it can be used to calculate and guide a route such as a fire escape route using connection relationship information between nodes. have.

According to the above embodiment, the capacity of the disaster safety space data generated according to the present invention is significantly reduced compared to the BIM data representing a conventional building, and thus can be quickly shared in a disaster situation. In addition, 2D or 3D modeling can be performed to cope with a disaster situation in real time from disaster safety spatial data.

11 is a view comparing 3D modeling using conventional BIM data and 3D modeling using disaster safety spatial data of the present invention. 11 (a) and (c) are 3D modeling using BIM data. Figure 11 (b) is a result of 3D modeling using disaster safety spatial data created from the BIM data of Figure 11 (a), Figure 11 (d) is from the BIM data of Figure 11 (c) This is the result of 3D modeling using the created disaster safety spatial data. Compared to the 3D model using BIM data, the capacity of the disaster safety space data according to the present invention is greatly reduced, but as shown in FIG. 11, there is no significant difference in the overall exterior or internal structure of the building. Therefore, in the event of a disaster, rescuers can accurately grasp the internal structure of the building and provide a clear evacuation route to the victim.

While this specification includes many features, such features should not be construed as limiting the scope or claims of the invention. In addition, features described in separate embodiments herein may be combined and implemented in a single embodiment. Conversely, various features described in a single embodiment herein may be individually implemented in various embodiments, or may be properly combined and implemented.

Although the operations have been described in a specific order in the drawings, it should not be understood that such operations are performed in a specific order as shown, or as a series of consecutive sequences, or that all described operations are performed to obtain a desired result. . Multitasking and parallel processing can be advantageous in certain environments. In addition, it should be understood that classification of various system components in the above-described embodiments does not require such classification in all embodiments. The above-described program components and systems may generally be implemented as a package in a single software product or multiple software products.

The method of the present invention as described above may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. This process can be easily carried out by a person of ordinary skill in the art to which the present invention pertains, and thus will not be described in detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those of ordinary skill in the technical field to which the present invention belongs. It is not limited by the drawings.

110: level definition unit
120: grid generator
130: object creation unit
140: space generation unit
150: node generator
160: output

Claims (17)

In the conversion device for converting BIM (Building Information Modeling) data into disaster safety space data,
A level definition unit for defining level information by extracting level information from the BIM data;
A grid generator that extracts attribute information and location information of wall objects among essential objects defining a space for each level from the BIM data, and generates grid information using a center line on a plane of the wall object;
Object information is generated by extracting attribute information and location information of essential objects defining a space for each level from the BIM data, but the object information of the wall object includes identification information of the corresponding grid information, and the door object and window object The object information of the object generation unit including identification information of the corresponding wall object;
A space generation unit defining a space surrounded by the wall object using the grid information and generating space information, and including identification information of a wall object defining the space in the space information; And
Conversion device comprising an output unit for outputting disaster safety space data including the level information, the grid information, the object information and the space information. The method of claim 1,
And a node generator for defining a node for defining a connection relationship between spaces using the object information and the space information and generating connection relationship information between nodes. The method of claim 2,
The node generation unit,
A conversion device, characterized in that the center of the space, a door among the essential objects, and a window satisfying a predetermined condition are defined as nodes. The method of claim 1,
The grid generator,
The center line on the plane of the wall object is extracted using coordinates and width information of the start and end points of the wall object, and the identification information of each center line, the coordinates of the start point and the coordinates of the end point are generated as grid information. Conversion device. The method of claim 4,
The object creation unit,
For the wall object, comprising the identification information of the wall object, the identification information of the center line corresponding to the wall object, and generating object information including at least one of a thickness, height, and material. The method of claim 4,
The object creation unit,
With respect to the door object, object information including identification information of the door object, identification information of the wall object to which the door object belongs, and object information including at least one of position information, thickness, height, direction, and vertical position is generated. Conversion device. The method of claim 4,
The object creation unit,
For a window object, a transformation characterized by generating object information including identification information of a window object, identification information of a wall object to which the window object belongs, and including at least one of location information, thickness, height, and vertical position Device. The method of claim 1,
The space generation unit,
As spatial information, a conversion device comprising identification information of a space and identification information of wall objects defining a corresponding space. As a method of converting BIM (Building Information Modeling) data into disaster safety space data in a conversion device,
Extracting level information from the BIM data to define level information;
Extracting attribute information and location information of wall objects among essential objects defining a space for each level from the BIM data, and generating grid information using a center line on a plane of the wall object;
Object information is generated by extracting attribute information and location information of essential objects defining a space for each level from the BIM data, but the object information of the wall object includes identification information of the corresponding grid information, and the door object and window object The object information of the step of generating object information including identification information of the corresponding wall object;
Using the grid information, a space surrounded by a wall object is defined and space information is generated, and the space information includes identification information of the wall object defining the space. Generating spatial information; And
And outputting disaster safety spatial data including the level information, the grid information, the object information, and the spatial information. The method of claim 9,
And defining a node for defining a connection relationship between spaces using the object information and the space information, and generating connection relationship information between the nodes. The method of claim 10,
The step of generating connection relationship information between the nodes,
The method of claim 1, wherein the center of the space, a door among the essential objects, and a window satisfying a predetermined condition are defined as nodes. The method of claim 9,
Generating the grid information,
The center line on the plane of the wall object is extracted using coordinates and width information of the start and end points of the wall object, and the identification information of each center line, the coordinates of the start point and the coordinates of the end point are generated as grid information. How to. The method of claim 12,
Generating the object information,
For the wall object, comprising the identification information of the wall object, the identification information of the center line corresponding to the wall object, and generating object information including at least one of thickness, height, and material. The method of claim 12,
Generating the object information,
With respect to the door object, object information including identification information of the door object, identification information of the wall object to which the door object belongs, and object information including at least one of position information, thickness, height, direction, and vertical position is generated. How to. The method of claim 12,
Generating the object information,
For the window object, the method comprising the identification information of the window object, the identification information of the wall object to which the window object belongs, and generating object information including at least one of location information, thickness, height, and vertical position . The method of claim 9,
Generating the spatial information,
As spatial information, a method comprising identification information of a space and identification information of wall objects defining a corresponding space. A computer program recorded on a recording medium as a computer program for executing the method according to any one of claims 9 to 16 through a computer system.

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