A method and device for extracting non-modeling entity engineering quantities based on BIM room model

Abstract

The disclosed embodiment provides a method and device for extracting non-modeled physical engineering quantities based on a BIM room model, the method comprising: constructing a physical room model; constructing a virtual room model based on the physical room model, the virtual room model being a closed room; and obtaining the non-modeled engineering quantities by deducting the virtual room model from the physical room model. The non-modeled engineering quantities can be obtained quickly, greatly improving construction efficiency.

Description

Technical Field

[0001] The disclosed embodiments relate to the field of building construction assistance technology, and more particularly to a method and device for extracting non-modeling entity engineering quantities based on a BIM room model. Background Art

[0002] With the continuous development of Building Information Modeling (BIM) technology, the demand for refined management of construction projects is getting higher and higher. Non-modeling entities, such as doors, windows, furniture, etc., are an indispensable part of construction projects. The accurate extraction of their engineering quantities is of great significance for project cost control and construction management.

[0003] However, traditional BIM-based quantity extraction methods mainly focus on modeling entities (such as walls, beams, slabs, etc.), and the processing of non-modeling entities often relies on manual statistics or simple software functions, which cannot meet the needs of fast and accurate quantity extraction.

[0004] Engineering information and models are important components of BIM. Compared with general engineering information or model information extraction, it is difficult to extract information with a high degree of coupling between some models and engineering information. Traditional methods can only be calculated by manual comparison of models (manual), which has low statistical efficiency, large statistical result errors and difficulty in collating results. Summary of the invention

[0005] In view of this, the embodiments of the present disclosure provide a method and device for extracting non-modeling entity engineering quantities based on a BIM room model, so as to solve the problem of low efficiency of engineering quantity extraction in the prior art.

[0006] In a first aspect, an embodiment of the present disclosure provides a method for extracting non-modeling entity engineering quantities based on a BIM room model, comprising:

[0007] Build a physical room model;

[0008] Constructing a virtual room model according to the physical room model, wherein the virtual room model refers to a closed room;

[0009] The unmodeled engineering quantity is obtained by deducting the virtual room model from the physical room model.

[0010] Furthermore, the constructing of the physical room model includes: establishing a Revit physical room model according to a building construction drawing.

[0011] Furthermore, the virtual room model is constructed according to the physical room model parameters, including: determining whether the physical room model parameters are a closed room, and if not, automatically creating a closed curve, and creating a virtual room model by using the created closed curve as a trace.

[0012] Furthermore, by deducting the virtual room model from the physical room model, the unmodeled engineering quantity is obtained, including:

[0013] Obtain the wall types of all virtual room models, identify the wall types, and obtain identified walls;

[0014] Use a recursive algorithm to obtain the IDs of all components that intersect with the identified wall;

[0015] Traverse the obtained IDs to convert all components into entities, and convert all entities into PlanarFace planes;

[0016] For each PlanarFace plane, check if its normal is pointing vertically upwards. If so, add it to the plane list;

[0017] The quantity obtained by deducting the plane list and the room closed curve is the unmodeled engineering quantity.

[0018] In a second aspect, the embodiment of the present disclosure provides a device for extracting non-modeling entity engineering quantities based on a BIM room model, including:

[0019] A first model building module is used to build a physical room model;

[0020] A second model building module builds a virtual room model according to the physical room model parameters, wherein the virtual room model refers to a closed room;

[0021] The extraction module is used to obtain the unmodeled engineering quantity by deducting the virtual room model from the physical room model.

[0022] In a third aspect, an embodiment of the present disclosure provides an electronic device, the electronic device comprising:

[0023] at least one processor; and,

[0024] a memory communicatively connected to the at least one processor; wherein,

[0025] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the aforementioned method.

[0026] In a fourth aspect, an embodiment of the present disclosure provides a non-transitory computer-readable storage medium, which stores computer instructions for causing the computer to execute the aforementioned method.

[0027] Beneficial effect: It can quickly obtain unmodeled engineering quantities, greatly improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram of a method flow chart provided in an embodiment of the present disclosure;

[0030] Figure 2 A schematic diagram of the structure of a device provided in an embodiment of the present disclosure;

[0031] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0033] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0034] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described herein may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein may be used to implement this device and / or practice this method.

[0035] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The drawings only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0036] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0037] Example 1

[0038] Example 1 of this specification provides a method for extracting non-modeling entity quantities based on a BIM room model. Figure 1 As shown, including:

[0039] S1, build a physical room model;

[0040] In a possible implementation, a Revit physical room model, curtain walls, doors, and windows are established according to the drawings, and the room areas are divided and arranged. It should be noted that the physical room model established according to the drawings has walls containing components such as doors and windows, so the physical room model is not a closed room. There is another case, for example, a room with three solid walls and one curtain wall, which is also a non-closed room. A closed room refers to a closed space composed of solid walls, and the solid walls do not contain holes, doors, windows, etc.

[0041] S2. constructing a virtual room model according to the physical room model parameters, wherein the virtual room model refers to a closed room;

[0042] In a possible implementation, constructing a virtual room model according to the physical room model parameters includes: determining whether the physical room model parameters are a closed room, and if not, automatically creating a closed curve, and creating a virtual room model using the created closed curve as a trace.

[0043] For example: Through C# secondary development and using the Revit software API interface, plug-in development work is carried out based on the entity model and parameter data information. Through GetWallType(Document doc, string typeName), the wall type with a specific name is retrieved from a given Revit document. It uses FilteredElementCollector to collect all wall types and match them by name. Through MakeLineClose(CurveLoop curves), it is identified whether the room wall is a closed wall room. If it is not closed, a closed curve is automatically created, and a virtual room model is created by creating a closed curve as a trace.

[0044] S3. Obtain the unmodeled engineering quantity by deducting the virtual room model from the physical room model

[0045] In a possible implementation, the unmodeled engineering quantity is obtained by subtracting the virtual room model from the physical room model, including:

[0046] Get the wall types of all virtual room models, identify the wall types, and obtain the identified walls; use a recursive algorithm to get the IDs of all components that intersect with the identified walls; traverse the obtained IDs to convert all components into entities, and convert all entities into PlanarFace planes; for each PlanarFace plane, check whether its normal is vertically upward, if so, add it to the plane list; subtract the plane list from the closed curve of the room, so that the obtained quantity is the unmodeled engineering quantity.

[0047] This embodiment can quickly obtain unmodeled engineering quantities and improve construction efficiency.

[0048] Example 2

[0049] Embodiment 2 of this specification provides a method for extracting non-modeling entity engineering quantities based on a BIM room model, see Figure 2 As shown, including:

[0050] A first model building module 301 is used to build a physical room model;

[0051] A second model building module 302 builds a virtual room model according to the physical room model parameters, wherein the virtual room model refers to a closed room;

[0052] The extraction module 303 is used to obtain the unmodeled engineering quantity by deducting the virtual room model from the physical room model.

[0053] Example 3

[0054] Embodiment 3 of the present specification further provides an electronic device 50, the electronic device comprising:

[0055] at least one processor; and,

[0056] a memory communicatively connected to the at least one processor; wherein,

[0057] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can perform the aforementioned method.

[0058] The embodiment of the present disclosure also provides a non-transitory computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable the computer to execute the aforementioned method.

[0059] The embodiment of the present disclosure also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the aforementioned method.

[0060] Reference below Figure 3 , which shows a schematic diagram of the structure of an electronic device 50 suitable for implementing the embodiment of the present disclosure. The electronic device in the embodiment of the present disclosure may include, but is not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 3 The electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0061] like Figure 3 As shown, the electronic device 50 may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 501, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 502 or a program loaded from a storage device 508 into a random access memory (RAM) 503. In the RAM 503, various programs and data required for the operation of the electronic device 50 are also stored. The processing device 501, the ROM 502, and the RAM 503 are connected to each other via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0062] Typically, the following devices may be connected to the I / O interface 505: input devices 506 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 507 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 508 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 509. The communication device 509 may allow the electronic device 50 to communicate with other devices wirelessly or by wire to exchange data. Although the electronic device 50 having various devices is shown in the figure, it should be understood that it is not required to implement or have all the devices shown. More or fewer devices may be implemented or have alternatively.

[0063] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device 509, or installed from a storage device 508, or installed from a ROM 502. When the computer program is executed by the processing device 501, the above-mentioned functions defined in the method of the embodiment of the present disclosure are executed.

[0064] It should be noted that the computer-readable medium mentioned above in the present disclosure may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. Computer readable signal media may also be any computer readable medium other than computer readable storage media, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer readable medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0065] The computer-readable medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

[0066] The computer-readable medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device can execute the relevant steps of the method embodiment.

[0067] Alternatively, the computer-readable medium carries one or more programs, and when the one or more programs are executed by the electronic device, the electronic device can perform the relevant steps of the method embodiment.

[0068] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0069] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present disclosure. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0070] The units involved in the embodiments described in the present disclosure may be implemented by software or by hardware.

[0071] It should be understood that various parts of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof.

[0072] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A method for extracting non-modeling entity engineering quantities based on BIM room model, characterized in that: include: Constructing a physical room model, wherein the constructing the physical room model comprises: establishing a revit physical room model according to a building construction drawing; Constructing a virtual room model according to a physical room model, wherein the virtual room model refers to a closed room; constructing a virtual room model according to physical room model parameters, including: determining whether the physical room model parameters are a closed room, and if they are not closed, automatically creating a closed curve, and creating a virtual room model by using the created closed curve as a trace; The unmodeled engineering quantity is obtained by deducting the virtual room model from the physical room model.

2. The method for extracting non-modeling entity engineering quantities based on BIM room model according to claim 1 is characterized in that: By deducting the virtual room model from the physical room model, the unmodeled engineering quantities are obtained, including: Obtain the wall types of all virtual room models, identify the wall types, and obtain identified walls; Use a recursive algorithm to obtain the IDs of all components that intersect with the identified wall; Traverse the obtained IDs to convert all components into entities, and convert all entities into PlanarFace planes; For each PlanarFace plane, check if its normal is pointing vertically upwards. If so, add it to the plane list; The quantity obtained by deducting the plane list and the room closed curve is the unmodeled engineering quantity.

3. A device for extracting non-modeling entity engineering quantities based on BIM room model, characterized in that: include: The first model building module is used to build a physical room model, wherein the building of the physical room model includes: establishing a revit physical room model according to a building construction drawing; The second model building module builds a virtual room model according to the physical room model parameters, wherein the virtual room model refers to a closed room; building the virtual room model according to the physical room model parameters includes: determining whether the physical room model parameters are a closed room, and if they are not closed, automatically creating a closed curve, and creating a virtual room model by using the created closed curve as a trace; The extraction module is used to obtain the unmodeled engineering quantity by deducting the virtual room model from the physical room model.

4. An electronic device, characterized in that: The electronic device comprises: at least one processor; and, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of the preceding claims 1-2.

5. A non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 2.

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