CN113515799A - Batch arrangement method and device for equipment models of building information models - Google Patents
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Abstract
The invention provides a method and a device for batch arrangement of equipment models of a building information model, which are applied to a building information model generation system and comprise the following steps: importing a site file into the building information model generation system; loading an input picture in the system, wherein the input picture is a site picture comprising at least one prearranged device; identifying each pre-arranged device and position coordinates thereof in the input picture; and selecting corresponding equipment model types in the system according to the recognized pre-arranged equipment, and arranging the equipment models at corresponding positions in the field file according to the recognized position coordinates of the pre-arranged equipment. By inputting the equipment model file in the photo format into the building information model generation system and accurately identifying the position coordinates of the equipment model in the photo, the model arrangement in the building information model can be realized in batches, accurately and efficiently, and the arrangement efficiency and the arrangement accuracy of the building information model are improved.
Description
Technical Field
The invention relates to the technical field of building engineering modeling, in particular to a method and a device for arranging equipment models of a building information model in batches.
Background
The construction site in railway four-electrical engineering generally contains a number of devices, such as: the model of the equipment is arranged in a three-dimensional model of a site, the existing technology is mainly realized by a method that the self-carrying function of the Bentley software is manually placed one by one or the function of the software is utilized to perform regular arrangement, and the regular arrangement is mainly performed on part of general equipment at present.
The device model is manually placed through the functions of the software, so that the problems of long placing time of the device family files, repeated operation, inaccurate positioning, repeated arrangement of a plurality of fields and the like exist.
Disclosure of Invention
The invention provides a batch arrangement method and device for equipment models of a building information model, which are used for overcoming the defect that equipment models in the building information model need to be manually arranged in the prior art and realizing batch and accurate arrangement of the equipment models in the building information model.
The invention provides a batch arrangement method of equipment models of a building information model, which is applied to a building information model generation system and comprises the following steps:
importing a site file into the building information model generation system;
loading an input picture in the system, wherein the input picture is a site picture comprising at least one prearranged device;
identifying each pre-arranged device and position coordinates thereof in the input picture;
and selecting corresponding equipment model types in the system according to the recognized pre-arranged equipment, and arranging the equipment models at corresponding positions in the field file according to the recognized position coordinates of the pre-arranged equipment.
According to the method for arranging the equipment models of the building information models in batches, the method for importing the site files into the building information model generation system comprises the following steps: the site file in the prearranged dgn format is imported into the building information model generation system.
According to the method for arranging the equipment models of the building information models in batches, the input pictures comprise character pictures, CAD drawing pictures or object pictures.
According to the method for arranging the equipment models of the building information models in batches, provided by the invention, the identification of each pre-arranged equipment and the position coordinates thereof in the input picture comprises the following steps when the input picture is a character picture:
detecting the position of the characters in the picture by applying a target detection method;
and identifying the text content by applying a text identification method on the detected text position, wherein the identified content comprises the type information and the position information of each piece of pre-arranged equipment.
According to the method for arranging the equipment models of the building information models in batches, the type information and the position coordinates of each piece of pre-arranged equipment in the input picture are identified, and when the input picture is a CAD drawing picture, the method comprises the following steps:
detecting each device attribute information, center position information and picture origin position information in the CAD drawing picture by using a target detection method;
and processing to obtain the spatial position coordinates of each pre-arrangement device according to the position relation between the origin position information and the central position of each pre-arrangement device.
According to the method for arranging the equipment models of the building information model in batches, the type information and the position coordinates of each piece of pre-arranged equipment in the input picture are identified, and when the input picture is a real object picture, the method comprises the following steps:
detecting type information of each piece of pre-arranged equipment and center position information of the bottom edge of the equipment in the real object picture by using a target detection method;
and carrying out coordinate transformation on the coordinates of the center positions of the bottom edges of the pre-arranged equipment according to the camera internal parameters for acquiring the real object picture, the monocular camera coordinate model and the plane equation of the ground in the camera coordinate system to obtain the space position coordinates of the pre-arranged equipment.
According to the method for arranging the equipment models of the building information models in batches, the corresponding equipment model types are selected in the system according to the recognized pre-arranged equipment, and the equipment models are arranged at the corresponding positions in the site file according to the position coordinates of the recognized pre-arranged equipment, and then the method comprises the following steps: and storing the arranged site file to form an equipment arrangement template model related to the site type.
The invention also provides a device for arranging the equipment models of the building information models in batches, which is applied to a building information model generation system and comprises the following components:
the site file importing unit is used for importing the site file of the pre-arranged equipment model into the building information model generating system;
the image loading unit is used for loading an input image into the building information model generation system, wherein the input image is a site image comprising at least one prearranged device;
the identification unit is used for identifying each pre-arrangement device in the input picture and the position coordinates of the pre-arrangement device;
and the arrangement unit is used for respectively arranging each equipment model consistent with the type of the pre-arranged equipment in the building information model generation system at the corresponding position in the field file according to the identified position coordinates according to the identified content.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of the batch arrangement method of the device models of the building information model.
The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method for device model batch arrangement of building information models as described in any one of the above.
According to the method for arranging the equipment models of the building information model in batches, the input file containing the picture formats of the field and the pre-arranged equipment is loaded into the building information model generation system, the input picture is accurately identified, and the position coordinates of the equipment models are accurately controlled, so that the model arrangement is accurately and efficiently carried out in batches, and the model arrangement efficiency and the arrangement accuracy are improved.
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In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method for batch arrangement of equipment models of a building information model provided by the present invention;
FIG. 2 is a schematic structural diagram of an apparatus for batch arrangement of equipment models of building information models provided by the present invention;
fig. 3 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a method for carrying out batch arrangement of equipment models on a Building information model generation system.
As shown in fig. 1, the method for arranging device models of building information models in batch according to the embodiment of the present invention includes:
step 110: and importing the site file into the building information model generation system.
In this step, the site file is a site file in dgn format of the pre-generated building information model.
Step 120: loading an input picture in the system, wherein the input picture is a venue picture including at least one prearranged device.
In this step, the input picture includes a text picture, a CAD drawing picture, or a real object picture. In the embodiment of the present invention, the input picture may be a picture in various forms, and the embodiment of the present invention is to model the contents of a site, a building, and the like and the contents of equipment in the input picture.
Step 130: and identifying each pre-arranged device and the position coordinates thereof in the input picture.
Optionally, when the input picture is a text picture, step 130 specifically includes:
detecting the position of the characters in the picture by applying a target detection method;
and identifying the text content by applying a text identification method on the detected text position, wherein the identified content comprises the type information and the position information of each piece of pre-arranged equipment.
Specifically, for example, the text picture content is "in the field 1, the coordinates of the transformer 1 are (1,1,1), and the coordinates of the transformer 2 are (1,2, 3)", the text position is detected by using a target detection Yolo algorithm, and then the text content is identified by using a text identification method CRNN. In the field of the field type 1 in this example, there are two transformers whose arrangement position coordinates in the field 1 are (1,1,1) and (1,2,3), respectively.
Optionally, when the input picture is a CAD drawing picture, step 130 specifically includes:
detecting each device attribute information, center position information and picture origin position information in the CAD drawing picture by using a target detection method;
and processing to obtain the spatial position coordinates of each pre-arrangement device according to the position relation between the origin position information and the central position of each pre-arrangement device.
In this embodiment, when the input picture is a CAD drawing picture, a drawing origin position needs to be marked in advance in the CAD drawing.
Specifically, the method comprises the following steps: converting a drawing with a site, a house and equipment into picture formats such as jpg, png, bmp and the like, wherein a special origin mark is required in a file;
if the graphs of the site, the house, the equipment and the like needing to be identified are not trained by the target detection model, reading the picture file through image annotation software LabelImg, and framing and annotating the graphs of the site, the house, the equipment and the like needing to be identified to generate training data;
and identifying the position of the original point of the image file and the positions of the graphs such as the field, the house, the equipment and the like to be identified by applying a target detection algorithm Yolo program, selecting a scale adopted by the image file in software, and calculating the horizontal and vertical distances from the central position of each image identification frame to be identified to the position of the original point through the software to obtain the space coordinates (X, Y and Z) of each graph.
Optionally, when the input picture is a real picture, step 130 specifically includes:
detecting type information of each piece of pre-arranged equipment and center position information of the bottom edge of the equipment in the real object picture by using a target detection method;
and carrying out coordinate transformation on the coordinates of the center positions of the bottom edges of the pre-arranged equipment according to the camera internal parameters for acquiring the real object picture, the monocular camera coordinate model and the plane equation of the ground in the camera coordinate system to obtain the space position coordinates of the pre-arranged equipment.
In the present embodiment, specifically: if the equipment needing to be identified in the physical picture is not trained by the target detection model, reading the picture file through image annotation software LabelImg, and framing and annotating the equipment needing to be identified to generate training data;
and (3) identifying the picture by using a target detection algorithm Yolo-v5, taking the middle point of the bottom edge of the identified equipment as a picture coordinate, and calculating the space coordinate of the object by using the internal parameters of the camera. Specifically, the method comprises the following steps: the recognized coordinates of the center point of the picture are set as (u, v), and the spatial coordinates of the center point of the picture are calculated by using the internal parameters (cx, cy, fx, fy) of the camera. The monocular camera model is:
and substituting the coordinates of the central point into the formula (1) to obtain:
and (3) combining the plane equation (3) of the ground under the camera coordinate system to obtain the space coordinates (X, Y, Z) of the object.
AX+BY+CZ+D＝0 (3)
Step 140: and selecting corresponding equipment model types in the system according to the recognized pre-arranged equipment, and arranging the equipment models at corresponding positions in the field file according to the recognized position coordinates of the pre-arranged equipment.
In this step, when the device models are arranged in the system, the corresponding device model types in the system may be selected according to the devices identified in step 130 to perform one-key batch arrangement, and the device models are arranged at the corresponding positions in the field text of the system according to the relative positions of the devices in the field in the picture. Therefore, batch efficient and accurate arrangement of the models is realized.
Preferably, after step 140, the embodiment of the present invention further includes: and storing the arranged site file to form an equipment arrangement template model related to the site type. In the preferred embodiment, the system can learn and record the site and equipment model placement information of the obtained building information model, so that the same or similar site placement model can be adopted when the same site type appears next time.
The embodiment of the invention realizes the automatic processing of customizable placement of the model by secondary development of modeling software, and realizes automatic calculation of the coordinates of the equipment model and switching among a plurality of fields. Namely, the placement positions of the equipment models selected by a user are calculated one by reading the site information and the equipment model information (the ID, the leftmost placement position, the same-row model interval, the number and the angle of the models), and then the equipment models are placed by one key according to the positions. The standardized building information model can be generated by a user 'one key' through standardized parameter input, and then necessary personalized adjustment is carried out on the standardized building information model, so that the BIM model meeting the design requirements can be obtained.
As shown in fig. 2, an embodiment of the present invention further provides a device for batch arrangement of device models of building information models, which is applied to a building information model generation system, and includes:
and a site file importing unit 210 for importing the site file of the pre-arranged equipment model into the building information model generating system.
In the embodiment of the invention, a site file in dgn format, which is drawn with a pre-modeling site and building information, is imported into a building information model generation system.
A picture loading unit 220, configured to load an input picture into the building information model generation system, where the input picture is a site picture including at least one pre-arranged device.
In the embodiment of the invention, the input picture comprises actual scene information of a building to be modeled, a site and equipment. The input picture can be a character picture, a CAD drawing picture or a real object picture.
An identifying unit 230 for identifying each pre-arranged device and its position coordinates in the input picture.
In this embodiment of the present invention, the identifying unit 230 identifies information in the input picture, where the identified information includes, for example: site size information, site type information, building size information, building location information, building type information, equipment size information, equipment location information, equipment type information, and the like.
And the arranging unit 240 is used for arranging the equipment models in the building information model generating system, which are consistent with the types of the pre-arranged equipment, at the corresponding positions in the field file according to the identified position coordinates according to the identification content.
In this embodiment of the present invention, the layout unit 240 lays out the information identified by the identification unit 230 on an imported site file of the system, and correspondingly lays out the building and the equipment in the picture at corresponding positions in the site file through a corresponding building model and an equipment model in the system according to a proportional relationship between a site size in the site file and a site size in the picture.
An entity structure schematic diagram of an electronic device provided in an embodiment of the present invention is described below with reference to fig. 3, and as shown in fig. 3, the electronic device may include: a processor (processor)310, a communication Interface (Communications Interface)320, a memory (memory)330 and a communication bus 340, wherein the processor 310, the communication Interface 320 and the memory 330 communicate with each other via the communication bus 340. The processor 310 may invoke logic instructions in the memory 330 to perform a method of device model batch arrangement of building information models, the method comprising: loading an input picture in the system, wherein the input picture is a site picture comprising at least one prearranged device; identifying each pre-arranged device and position coordinates thereof in the input picture; and selecting corresponding equipment model types in the system according to the recognized pre-arranged equipment, and arranging the equipment models at corresponding positions in the field file according to the recognized position coordinates of the pre-arranged equipment.
In addition, the logic instructions in the memory 330 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, an embodiment of the present invention further provides a computer program product, where the computer program product 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 can execute the method for arranging the device models of the building information models in batch, the method including: loading an input picture in the system, wherein the input picture is a site picture comprising at least one prearranged device; identifying each pre-arranged device and position coordinates thereof in the input picture; and selecting corresponding equipment model types in the system according to the recognized pre-arranged equipment, and arranging the equipment models at corresponding positions in the field file according to the recognized position coordinates of the pre-arranged equipment.
In still another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to perform the above-mentioned method for batch arrangement of equipment models of the provided building information models: importing the site file into a building information model generation system; loading an input picture in the system, wherein the input picture is a site picture comprising at least one prearranged device; identifying each pre-arranged device and position coordinates thereof in the input picture; and selecting corresponding equipment model types in the system according to the recognized pre-arranged equipment, and arranging the equipment models at corresponding positions in the field file according to the recognized position coordinates of the pre-arranged equipment.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A batch arrangement method of equipment models of building information models is applied to a building information model generation system and is characterized by comprising the following steps:
importing a site file into the building information model generation system;
loading an input picture in the system, wherein the input picture is a site picture comprising at least one prearranged device;
identifying each pre-arranged device and position coordinates thereof in the input picture;
and selecting corresponding equipment model types in the system according to the recognized pre-arranged equipment, and arranging the equipment models at corresponding positions in the field file according to the recognized position coordinates of the pre-arranged equipment.
2. The method for batch arrangement of equipment models of building information models according to claim 1, wherein importing the site file into the building information model generation system includes: the site file in the prearranged dgn format is imported into the building information model generation system.
3. The batch arrangement method of equipment models of building information models according to claim 2, wherein the input pictures include text pictures, CAD drawing pictures, or physical pictures.
4. The method as claimed in claim 3, wherein the step of identifying each pre-arranged device and its position coordinates in the input image comprises, when the input image is a text image:
detecting the position of the characters in the picture by applying a target detection method;
and identifying the text content by applying a text identification method on the detected text position, wherein the identified content comprises the type information and the position information of each piece of pre-arranged equipment.
5. The batch layout method of equipment models of building information models according to claim 3, wherein the identifying of the type information and the position coordinates of each piece of pre-layout equipment in the input picture comprises, when the input picture is a CAD drawing picture:
detecting each device attribute information, center position information and picture origin position information in the CAD drawing picture by using a target detection method;
and processing to obtain the spatial position coordinates of each pre-arrangement device according to the position relation between the origin position information and the central position of each pre-arrangement device.
6. The method according to claim 3, wherein the identifying type information and position coordinates of each pre-arranged device in the input picture comprises, when the input picture is a real picture:
detecting type information of each piece of pre-arranged equipment and center position information of the bottom edge of the equipment in the real object picture by using a target detection method;
and carrying out coordinate transformation on the coordinates of the center positions of the bottom edges of the pre-arranged equipment according to the camera internal parameters for acquiring the real object picture, the monocular camera coordinate model and the plane equation of the ground in the camera coordinate system to obtain the space position coordinates of the pre-arranged equipment.
7. The method for batch arrangement of equipment models of building information models according to any one of claims 4 to 6, wherein the selecting of the corresponding equipment model type in the system according to the identified pre-arranged equipment and the arranging of each equipment model at the corresponding position in the site file according to the position coordinates of the identified pre-arranged equipment, thereafter comprises: and storing the arranged site file to form an equipment arrangement template model related to the site type.
8. The utility model provides a device is arranged in batches to equipment model of building information model, is applied to building information model generating system, its characterized in that includes:
the site file importing unit is used for importing the site file of the pre-arranged equipment model into the building information model generating system;
the image loading unit is used for loading an input image into the building information model generation system, wherein the input image is a site image comprising at least one prearranged device;
the identification unit is used for identifying each pre-arrangement device in the input picture and the position coordinates of the pre-arrangement device;
and the arrangement unit is used for respectively arranging each equipment model consistent with the type of the pre-arranged equipment in the building information model generation system at the corresponding position in the field file according to the identified position coordinates according to the identified content.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the program, implements the steps of the device model batch arrangement method of building information models according to any one of claims 1 to 7.
10. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for the batch arrangement of equipment models of building information models according to any one of claims 1 to 7.
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| CN114091159A (en) * | 2021-11-24 | 2022-02-25 | 三一筑工科技股份有限公司 | Design method and device for reserved embedded part |
| CN114675904A (en) * | 2022-03-31 | 2022-06-28 | 阿里巴巴（中国）有限公司 | Equipment processing method and device |
| CN114675904B (en) * | 2022-03-31 | 2024-04-09 | 阿里巴巴（中国）有限公司 | Equipment processing method and device |
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