JP6608403B2 - Building equipment drawing creation support system - Google Patents

Description

  The present invention relates to a system that supports creation of building facility drawings.

  Generally, an architectural design drawing includes a frame that is a framework of a building such as a pillar, a beam, a wall, and a floor board (slab), and various facilities such as a sanitary facility, an air conditioning facility, an electrical facility, and a fire extinguishing facility. Of the architectural design drawings, a drawing in which only facilities are described without describing facilities is referred to as a framework diagram, and a drawing in which various facilities are additionally described is referred to as a building facility diagram (or simply facility diagram).

  In creating these architectural design drawings, the work load can be reduced by referring to past cases. Past cases can be efficiently extracted by recognizing past architectural design drawing data by image recognition or character recognition.

  For example, in Patent Document 1, a room layout (a closed region surrounded by a wall) is automatically recognized from past two-dimensional CAD data. Further, when a room name element (character element) is included in the closed area, the closed area and the room name element are associated with each other.

  In Patent Document 2, a room area is identified by extracting a closed area from a floor plan input by a graphic input device such as a scanner. Furthermore, the room function is recognized from the graphic symbols existing in the room area, and the room names are associated with each other.

  In Patent Document 3, by performing image processing on a drawing and extracting a boundary line, the region of the facility drawn in the drawing is specified, and when the character string is included in the region, the extracted character A column is associated with a region.

  In Patent Document 4, texts such as floor plans and areas, and image data of floor plans are stored in a property database. When the condition of the desired property is input as text, a property having a high degree of conformity to the desired property condition is extracted according to the text condition. Further, when the floor plan of the desired property is designated by an image, a property having a high degree of similarity of the floor plan is extracted. A total fitness is obtained using the fitness and similarity.

  In Patent Document 5, an architectural design drawing that most closely matches a condition is extracted and displayed from an architectural design drawing stored in a database by inputting the architectural drawing created by a user. Further, when a desired drawing is selected from the searched architectural design drawings, an optimal lighting fixture distribution diagram and a list of lighting fixtures are displayed on the lighting design result screen.

  In Patent Document 6, a drawing name is extracted from a plurality of drawings in which facility drawings are arranged, a symbol indicating a facility device and an identification number inputted by characters are extracted, and a facility list in which the device number and the drawing name are associated with each other. A table is being created.

JP 2007-115238 A Japanese Patent Laid-Open No. 10-124547 Japanese Patent Laying-Open No. 2015-7955 JP 2002-149681 A JP 2004-252530 A JP-A-9-319774

  By the way, there is a case where a division of labor system is adopted in preparation of architectural design drawings. For example, a skeleton diagram is created by a general contractor (general construction company) having a specialized knowledge of skeleton structure or a design office. Next, a building equipment map in which equipment is installed on each floor of the skeleton drawing is written by a so-called sub-con (equipment construction company) or the like having specialized knowledge of each equipment.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a building facility drawing creation support system that can reduce the work load more than before by extracting an appropriate past case when developing a building diagram to a building facility diagram.

  The present invention relates to a building facility drawing creation support system. The system includes a drawing database, an information extraction unit, and a similar item extraction unit. The drawing database stores facility plan data of each floor where facilities are laid in the building frame. The information extraction unit calculates the similarity determination parameter based on the character and graphic information of the building floor plan data when the building floor plan data of each floor of the building is input, and stores it in the drawing database. A similarity determination parameter based on the character and graphic information of the frame is calculated for each piece of equipment floor plan data. The similar case extraction unit extracts a building whose facility structure is similar to the building that is the basis of the facility plan view data and the facility plan view data based on the similarity determination parameter of the facility plan view data and the facility plan view data.

  In the above invention, the information extraction unit calculates, as a similarity determination parameter, at least one of the room name type, the total number of rooms, and the total floor area of all floors of the housing structure of the housing plan view data and facility plan view data. May be.

  Moreover, in the said invention, you may make it a similar case extraction part give a high similarity, so that the similarity determination parameter with respect to installation top view data is close to the similarity determination parameter with respect to frame top view data.

  Moreover, in the said invention, an information extraction part may extract an installation based on the symbol figure information of the installation described in the installation floor plan data.

  Moreover, in the said invention, an information extraction part may determine the area | region enclosed with the line in equipment floor plan data as a room candidate.

  Moreover, in the said invention, an information extraction part may determine the said room candidate as a room, when the perimeter of the line which surrounds this among room candidates is more than a predetermined threshold value.

  In the above invention, the information extraction unit may list equipment installed in the room by searching for symbol information of the equipment included in the room area.

  Moreover, in the said invention, you may provide the input part which can select at least any one of the kind of room name of all the floors, the total number of rooms, and a total floor area as a similarity determination parameter.

  According to the present invention, when the building diagram is developed into the building facility drawing, the facility plan view data of the building whose building structure is similar to the building that is the basis of the building drawing is extracted. Thus, by extracting an appropriate past case, it is possible to reduce the work load related to the creation of a building equipment map than before.

It is a figure which illustrates the composition of the building facility drawing creation support system concerning a 1st embodiment. It is a figure which illustrates the functional block of the building equipment drawing creation assistance system which concerns on 1st Embodiment. It is a figure which illustrates a similar matter extraction flow. It is a figure which illustrates housing top view data. It is a figure which illustrates an information extraction processing flow. It is a figure which illustrates the case outline and room information of the similar case displayed on a display part. It is a figure which illustrates the functional block of the building equipment drawing creation assistance system which concerns on 2nd Embodiment. It is a figure explaining the extraction process of equipment. It is a figure which illustrates the case outline and room information of the similar case displayed on a display part. It is a figure which illustrates the functional block of the building equipment drawing creation assistance system which concerns on 3rd Embodiment. It is a figure which illustrates the position coordinate acquisition process of an installation. It is a figure which illustrates the histogram which compares the number of facilities for every room.

  FIG. 1 illustrates a configuration diagram of a building facility drawing creation support system 10 according to the present embodiment. The building equipment drawing creation support system 10 includes, for example, a computer system (computer), and a CPU 16 (Central Processing Unit), a memory 18, an input unit 20, and a display unit 22 are connected via a system bus.

  The input unit 20 includes, for example, a keyboard and a mouse, and a user of the building facility drawing creation support system 10 can input various information to the computer. As will be described later, the data input to the input unit 20 includes facility plan data 13, frame plan data 11, and selection data for similarity determination parameters.

  The display unit 22 is constituted by an LCD, for example, and can display the calculation processing result of the CPU 16 and the stored contents of various databases stored in the memory 18. As will be described later, the data displayed by the display unit 22 is the equipment plan view data 13A, 13B, 13C of the building whose structure is similar to the building that is the basis of the case plan data 11 input to the input unit 20. ... and its accompanying information are displayed.

  The memory 18 includes a volatile and nonvolatile memory (storage medium) including a memory such as a RAM (Random Access Memory) and a ROM (Read Only Memory) and a storage device such as a hard disk. As will be described later, the memory 18 stores a program that causes a computer to function as the building facility drawing creation support system 10. The computer may function as the building facility drawing creation support system 10 by reading a storage medium such as a CD-ROM or DVD in which the program is stored.

  FIG. 2 illustrates a functional block diagram of the building facility drawing creation support system 10. As shown in this figure, a drawing database 24 is constructed in the memory 18. The drawing database 24 stores drawing data of buildings constructed in the past. This drawing data is stored for each building (for each construction project).

  The drawing data for each building stored in the drawing database 24 includes facility floor plan data (facility diagram data) of each floor in which the facilities are laid in the frame of the building. The equipment plan view data is plan view data, that is, image data, in which the installation position of the equipment with respect to the housing is described for each floor. This image data may be in a raster format or a vector format. Moreover, the facility plan view may be prepared for each of various facilities such as a sanitary facility, an air conditioning facility, an electrical facility, and a fire extinguishing facility.

  The drawing database 24 may include text data linked to the image data of the facility plan view. This text data includes, for example, character information described in the drawing. For example, the text data includes the subject, construction name, number of floors, total floor area, number of rooms, etc. described in the title column of the drawing.

  Further, the facility plan data may be 2D-CAD data, for example. In this case, the equipment plan view data may be divided into layers by the housing and the equipment. By doing in this way, comparison between frame top views is easily performed as will be described later.

  As the CPU 16 executes a program stored in a storage medium such as the memory 18, CD-ROM, or DVD, a plurality of functional units are virtually constructed as shown in FIG. Specifically, an information extraction unit 26, a similar item extraction unit 28, and an equipment diagram registration unit 30 are constructed in the CPU 16. Further, the information extraction unit 26 includes a building information extraction unit 32, a room structure information extraction unit 34, and a room name extraction unit 36.

  FIG. 3 illustrates an extraction flow of similar projects by the building facility drawing creation support system 10. First, to the input unit 20, the frame plan data 11 of each floor in an arbitrary building, which is indicated by a case A in the figure, is input. In FIG. 4, the example of a housing top view is shown. The chassis plan view is a plan view of each floor in the chassis diagram before the installation of the equipment. Hereinafter, depending on the situation (for example, when it is clear that it is a plan view), it is also simply referred to as a chassis diagram.

  As shown in FIG. 4, a diagram showing the walls, columns, and the like constituting the housing and the dimensions thereof are shown. In the title column at the bottom right of the drawing, an outline of the project such as construction name is described. In the case plan view of FIG. 4, the description of some dimensions and the like is omitted to simplify the illustration.

  The information extraction unit 26 extracts various information from the input chassis plan data 11 (S10). FIG. 5 illustrates an information extraction process flow. The information extraction unit 26 recognizes characters in the title column of the building plan data 11 of all the floors, and acquires the case summary information of the building (S26).

  As shown in FIG. 4, the title of the architectural drawing contains the construction name, subject (figure name), and the like. The building information extraction unit 32 recognizes this. From the subject (drawing name), it is possible to determine whether or not the drawing to be recognized is a frame plan view. In addition, as a term synonymous with a chassis plan view, there may be a case where a “frame look-up view” or simply a “frame view” is described. Therefore, these terms may also be extracted as synonymous with the housing plan view. Moreover, the building information extraction part 32 acquires the floor number of each frame top view data 11 from a subject name (drawing name).

  Next, the information extraction unit 26 calls the frame plan data 11 of the initial value f0 for the rank f in the extracted floor plan data 11 of all the floors (S28). For example, if the lowest floor is the first floor, the initial value f0 = 1 is set. If the lowest floor is the second basement, the initial value f0 = -2 is set. Next, the room structure information extraction unit 34 extracts room candidates in the frame plan data by image recognition (S30).

  As shown in FIG. 4, since the room area is divided into walls, a plane (space) surrounded by the walls constitutes the room area. When a line segment indicating a wall or window is traced (traced) and a closed polygon surrounded by the line is formed, the interior of the closed polygon becomes a room region.

  Note that a large number of lines are written in the frame plan view data of FIG. 4, and closed polygons can be formed even for columns, staircases, and the like that do not constitute a room area. Therefore, it is also possible to extract a room once a closed polygon is formed as a room candidate, and further extract a room from this candidate.

  For example, when the circumference of a closed polygon extracted as a room candidate is equal to or greater than a predetermined threshold, the room candidate is determined as a room. As shown in FIG. 4, since the text information of the dimension is written in the chassis plan view, the circumference of the closed polygon can be acquired by recognizing the text information.

  The room structure information extraction unit 34 recognizes the text information of the dimensions, acquires the dimensions of all the room candidates, and obtains the circumference L of each room candidate (S32). It should be noted that a line segment (for example, the width of a staircase) whose dimensions cannot be grasped from the dimension text information of the chassis plan view may be determined as having low importance in design and excluded from the room candidates.

  Furthermore, the room structure information extraction unit 34 determines that a room whose circumference L is equal to or greater than a predetermined threshold L0 among all the room candidates from which the circumference L is derived (S34). For example, when the perimeter of the closed polygon is a threshold value of 4 m (4000 mm) or more, the room candidate constituting the closed polygon is determined as a room. Next, the room structure information extraction unit 34 obtains the area and shape (width × depth) of all the rooms based on the dimensions of the closed polygon determined to be a room (S36).

  Next, the room name extraction unit 36 extracts all room names by character recognition (S38). For example, text in a polygon that partitions a room is recognized. When a plurality of texts are arranged in a polygon, characters including text such as “room”, “place”, “vault”, and “corridor” are preferentially extracted and used as room names.

  Further, the information extraction unit 26 determines whether or not the floor of the chassis plan data 11 to be extracted is the highest floor f = f_end (S40). If the highest floor has not been reached, the floor f is incremented (S42) and the process returns to step S30.

  When the number of floors of the frame plan data 11 to be extracted has reached the top floor f = f_end in step S40, the information extracting unit 26 obtains the total number of rooms over all floors (S44). In addition, the information extraction unit 26 obtains the total floor area that is the sum of the floor areas over all the floors (S46). For simplicity, the total floor area may be the total area of all rooms.

  Referring to FIG. 3, when the analysis of the frame plan data 11 input to the input unit 20 is completed in step S <b> 10, the information extraction unit 26 next stores the past facility plane stored in the drawing database 24. The same analysis is performed on the figure data 13A, 13B, 13C.

  That is, the information extraction unit 26 calls the facility plan data of each floor of the building having the initial value 1 for the building (project) number k stored in the drawing database 24 (S12). Further, the information extraction unit 26 extracts the room name, the total floor area, and the total number of rooms over all the floors from the facility plan data of each floor of the project k (= 1) (S14). Since this process is the same as the information extraction process in step S10 performed on the housing plan view data 11, the description thereof will be omitted as appropriate.

  In step S14, since the structural information of the frame is extracted from the equipment plan data, the room name and the like may be extracted after the equipment related data is excluded from the equipment plan data. For example, when the equipment floor plan data is composed of CAD data, the room name and the like may be extracted based on the frame layer and the dimension layer without displaying the equipment layer.

  When the extraction of the room name and the like in the unit of the building of the case k (= 1) is completed, the similar case extraction unit 28 determines the building (hereinafter referred to as a pre-completion building as appropriate) as the basis of the frame plan data 11. Then, the degree of similarity with the building that is the basis of the facility plan data 13 of the project k (= 1) (hereinafter referred to as a post-completion building as appropriate) is determined (S16).

  The similarity determination is performed, for example, by comparing at least one of the type of room name, the total number of rooms, and the total floor area. From this point, the types of room names on all floors, the total number of rooms, and the total floor area function as similarity determination parameters representing the building structure of the building. For example, as the similarity determination parameter of the completed building is closer to the similarity determination parameter of the building before completion, the similar item extraction unit 28 gives a higher similarity to the completed building.

  When the types of room names over the entire floor are used as the similarity determination parameter, the degree of similarity increases as the number of overlapping room names of the building before completion and the building after completion increases. Further, when the total number of rooms and the total floor area are used as the similarity determination parameters, the degree of similarity increases as the difference in numerical values between the building before completion and the building after completion is smaller.

  After the similarity determination, the similar case extraction unit 28 determines whether the number k of the target building for similarity determination has reached the end n (S18). If not reached, the number k is incremented (S20), and the process returns to step S14. In the case of k = n, the similarity with the building before completion is determined for all the buildings stored in the drawing database 24. The similar case extraction unit 28 causes the display unit 22 to display the building name and facility plan data 13A, 13B, 13C,. S24).

  As illustrated in FIG. 6, the display unit 22 displays a case overview and room information for each similar case. In addition, facility floor plan data for each floor is also displayed. The user of the building facility drawing creation support system 10 can create a facility floor plan of a building before completion with reference to similar project data.

  When the facility plan 13D of the project A, which is a pre-completion building project, is completed, the facility diagram registration unit 30 stores the facility plan 13D in the drawing database 24.

  In the above embodiment, the date of production may be acquired when performing character recognition in the title column. For example, if the data is relatively old, there is a risk that a drawing that does not comply with recent laws and regulations will be extracted. Therefore, in extracting the facility floor plan data of the completed building stored in the drawing database 24, only data before a predetermined date from the current date may be extracted.

  Further, in the above-described embodiment, the similarity determination parameter is set every time the building plan data 11 is received for the facility plan data of the completed building stored in the drawing database 24 as in steps S14 to S20 of FIG. Although extracted, it is not restricted to this form. For example, if the similarity determination parameter has already been extracted at the time of inputting the previous chassis plan view data 11, it may be stored in the drawing database 24 and called each time.

Second Embodiment
In addition to the above-described embodiment, for each facility plan view stored in the drawing database 24, facilities installed in each room may be extracted. FIG. 7 illustrates a functional block diagram of the building facility drawing creation support system 10 according to the second embodiment. The difference from FIG. 2 is that an equipment device extraction unit 38 is provided. Since other configurations are the same as those in FIG. 2, description thereof will be omitted as appropriate.

  The facility equipment extraction unit 38 extracts the facility equipment (hereinafter also simply referred to as equipment as appropriate) described in the equipment plan view. This equipment extraction process is performed, for example, during the execution of step S14 in the flowchart of FIG. Specifically, after acquiring a room name and a room area on an arbitrary floor of an arbitrary case k, the equipment on the floor is extracted.

  FIG. 8 illustrates an outline of facility equipment extraction. The drawing database 24 includes a symbol library in which symbols (symbol graphic information) of various facilities are stored in advance. For example, FIG. 8 illustrates an indoor unit symbol library in which symbols 40A, 40B, and 40C of indoor units of air conditioning equipment are stored. As shown in this example, a plurality of patterns of symbols may be stored for one facility device. Registration of symbols in the symbol library may be performed, for example, by extracting images corresponding to equipment by user operation from several pieces of equipment floor plan data in advance.

  The facility device extraction unit 38 selects a predetermined symbol 40B from the symbol library, and extracts an image 42 that matches the selected symbol 40B from the image data of the facility plan to be extracted by pattern matching.

  As described above, the room recognition, the room name, and the room area in the facility plan view are obtained before the extraction of the facility equipment. The equipment extraction unit 38 extracts a room (conference room 1) including the extracted equipment image 42 and associates it with the image 42. That is, the drawing database 24 stores that the indoor unit shown in the image 42 is installed in the conference room 1.

  By such equipment extraction, the equipment is listed for each room. Each case content is displayed on the display unit 22 as shown in FIG. The difference from FIG. 6 is that the facility information is added to the room information. As shown in FIG. 9, the equipment installed in each room is shown in addition to the room area, room shape, and inner circumference. Thereby, the installation status of the equipment in each room is clarified, and an equipment plan view can be easily created.

<Third Embodiment>
FIG. 10 illustrates a functional block diagram of the building facility drawing creation support system 10 according to the third embodiment. The difference from FIG. 7 is that the input unit 20 is divided into a drawing input unit 20A and a search condition input unit 20B. Since other configurations are the same as those in FIG. 7, description thereof will be omitted below as appropriate.

  The drawing input unit 20A can input a plan view of a building before completion. In addition, the search condition input unit 20B can set a search condition when performing similarity determination. For example, as described above, the similarity determination parameter includes the room name, the total number of rooms, and the total floor area. The user can use the search condition input unit 20B so that at least one of these parameters is used as the similarity determination parameter. It is possible to set from.

  For example, according to the Building Standard Law, the number of emergency elevators is determined according to the total floor area. In such a case, when the emergency elevator is installed, only the total floor area is designated as the similarity determination parameter.

  If the number of rooms is important, a specific number of rooms (for example, the number of rooms = 10) can be input from the search condition input unit 20B. At this time, facility floor plan data of the building close to the input number of rooms is extracted.

  Moreover, it is possible to weight each similarity determination parameter from the search condition input unit 20B. For example, if the priority is the number of rooms> total floor area> total room area, the similarity of the number of rooms is multiplied by the weighting coefficient α, the similarity of the total floor area is multiplied by the weighting coefficient β, and the similarity of the total room area is weighted. The coefficient γ is multiplied and the sum is taken as the similarity. Here, α> β> γ.

<Fourth embodiment>
In the second embodiment, the facilities arranged in a predetermined room are listed. In addition to this, the image data of the facility plan view of the building after completion indicates where the facility is arranged in the room. You may ask for. For example, as illustrated in FIG. 11, the room structure information extraction unit 34 takes an arbitrary point (for example, the lower left corner point) of a line defining a predetermined room (conference room 1) as the origin. Furthermore, an arbitrary point (for example, the lower left corner point) of predetermined equipment (air conditioner 1 and air conditioner 2) is taken as a representative point. Further, the coordinates (two-dimensional coordinates) of the representative point with respect to the origin are obtained based on dimensions not shown in FIG. Thus, by obtaining the arrangement position of the equipment, it is possible to create a more efficient equipment plan view.

<Fifth Embodiment>
In the second embodiment, the facilities arranged for each room are listed, but this may be applied so that the number of facilities for each room name can be compared. As shown in FIG. 9, the room information displays the room name and the equipment installed in the room. By using this, as shown in FIG. 12, the number of rooms (named per unit area) by room name for a predetermined facility may be displayed by a histogram or the like.

  DESCRIPTION OF SYMBOLS 10 Building equipment drawing creation support system, 11 Housing plan view data, 13 Equipment plan view data, 22 Display part, 26 Information extraction part, 28 Similar item extraction part, 30 Equipment figure registration part, 32 Building information extraction part, 34 Room structure Information extraction unit, 36 room name extraction unit, 38 facility equipment extraction unit.

Claims (8)

A drawing database in which facility floor plan data of each floor where the facilities are laid in the building's frame are stored;
When the building plan data of each floor of the building is input, the similarity determination parameter based on the character and graphic information of the building plan view data is calculated for each building, and the facility stored in the drawing database An information extraction unit that calculates similarity determination parameters based on the character and graphic information of the frame for the floor plan data in units of buildings;
Based on the similarity determination parameters of the building plan view data and the facility plan view data, a similar project that extracts a building whose structure is similar to the building that is the basis of the plan view plan data and the facility plan view data. An extractor;
A building equipment drawing creation support system. A building facility drawing creation support system according to claim 1,
The information extraction unit calculates, as the similarity determination parameter, at least one of the room name type, the total number of rooms, and the total floor area of all floors of the housing plan view data and the equipment plan view data. Building equipment drawing creation support system. A building facility drawing creation support system according to claim 2,
The similar facility extraction unit is a building facility drawing creation support system that gives a higher degree of similarity as the similarity determination parameter for the facility plan data is closer to the similarity determination parameter for the frame plan data. A building equipment drawing creation support system according to claim 3,
The information extraction unit is a building facility drawing creation support system that extracts facilities based on symbol graphic information of facilities described in the facility plan data. The building equipment drawing creation support system according to claim 4,
The information extraction unit is a building facility drawing creation support system that determines a region surrounded by a line in the facility plan data as a room candidate. A building facility drawing creation support system according to claim 5,
The said information extraction part is a building equipment drawing creation assistance system which determines the said room candidate to be a room, when the circumference of the line surrounding this among the said room candidates is more than a predetermined threshold value. The building equipment drawing creation support system according to claim 6,
The said information extraction part searches the symbol information of the said equipment contained in the area | region of the said room, The building equipment drawing creation assistance system which lists the said equipment installed in the said room. The building equipment drawing creation support system according to claim 7,
A building facility drawing creation support system comprising an input unit capable of selecting at least one of the kind of room names of all floors, the total number of rooms, and the total floor area as the similarity determination parameter.