CN110532720B - Rapid automatic modeling method for urban underground pipe network BIM - Google Patents
Rapid automatic modeling method for urban underground pipe network BIM Download PDFInfo
- Publication number
- CN110532720B CN110532720B CN201910832863.8A CN201910832863A CN110532720B CN 110532720 B CN110532720 B CN 110532720B CN 201910832863 A CN201910832863 A CN 201910832863A CN 110532720 B CN110532720 B CN 110532720B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- data information
- bim
- pipeline data
- pipelines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention relates to a rapid automatic modeling method for urban underground pipe network BIM, which is characterized in that the method carries out programming processing on original pipeline data information stored in an electronic database, generates pipeline data information in a standardized format, and then introduces BIM software to realize automatic modeling, wherein the programming processing comprises the following steps: 1) Classifying the original pipeline data information according to the attribute information and the expression form of each pipeline; 2) Judging whether the pipelines collide with each other or not according to the classified pipeline data information, if so, executing the step 3), and if not, executing the step 4); 3) Modifying corresponding pipeline data information according to a set avoidance rule, performing automatic avoidance, and executing the step 2); 4) The pipeline data information after the automatic avoidance is completed is converted into the pipeline data information in the standardized format and is used for importing BIM software to realize automatic modeling.
Description
Technical Field
The invention relates to the field of automatic modeling of an underground pipe network, in particular to a BIM (building information modeling) rapid automatic modeling method for an urban underground pipe network.
Background
The urban underground pipeline relates to various underground pipelines of water supply, rainwater, sewage, gas, electric power, information and the like, forms an intricate underground pipeline network, namely an urban pipe network, is an important component of urban infrastructure and is responsible for transmitting information and transmitting energy. The traditional two-dimensional CAD graph is difficult to show the spatial distribution condition of the pipelines in the underground pipe network, only the plane distribution condition of the pipelines can be shown, a plurality of cross points are arranged at the dense positions of the pipelines, whether the pipelines collide or not is difficult to distinguish, meanwhile, the CAD graph cannot visually show the attribute information of the pipelines and the accessory information at the connecting positions of the pipelines, and only the attribute information and the accessory information are indirectly expressed in a labeling mode, so that the dense positions of the pipelines are labeled in chaos, and even the information of the pipelines is covered. However, with the continuous change of the urban scale development, the fine management degree of the city is continuously improved, the complexity of the underground pipe network is higher and higher, and the underground pipe network needs to be changed continuously, so that if a traditional two-dimensional mode is still used, great challenges are brought to the planning, design, construction, maintenance and other work of the underground pipe network.
On the BIM three-dimensional dynamic model diagram, the spatial distribution condition of underground pipe networks can be shown, and the hierarchical relationship of different pipelines in the vertical direction can be clearly seen, so that the application of the BIM technology in the urban underground space development is beneficial to the establishment of an underground space system, the comparative analysis of different design schemes, the fine design, the collision detection and other works, but the application of the BIM in the underground space development is still in the starting stage at present, and corresponding functional modules or plug-ins are still in the development perfection.
Lu Dandan and the like provide a high-precision automatic three-dimensional modeling technical method in 'urban underground pipeline three-dimensional modeling key technical research', two-dimensional pipeline census data is utilized, different modes are adopted according to characteristics of various pipeline points and pipeline segments, and an underground pipeline three-dimensional model is generated through space, attribute and material information mapping in a real-time driving mode.
Wu Feng and the like propose to import software to existing underground pipelines and corresponding accessories in batches through secondary development of BIM software in the research of three-dimensional automatic modeling of the existing underground pipelines based on BIM technology, construct a BIM model, and modify and perfect the model by utilizing a collision detection module and a manual inspection mode of the software.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a rapid automatic modeling method for urban underground pipe network BIM.
The purpose of the invention can be realized by the following technical scheme:
a quick automatic modeling method for urban underground pipe network BIM is characterized in that programming processing is carried out on original pipeline data information stored in an electronic database, then pipeline data information in a standardized format is generated, BIM software is introduced to realize automatic modeling, and the programming processing comprises the following steps:
1) Classifying the original pipeline data information according to the attribute information and the expression form of each pipeline;
2) Judging whether the pipelines collide with each other or not according to the classified pipeline data information, if so, executing the step 3), and if not, executing the step 4);
3) Modifying corresponding pipeline data information according to a set avoidance rule, performing automatic avoidance, and executing the step 2);
4) And converting the pipeline data information after the automatic avoidance is finished into the pipeline data information in a standardized format, and importing the pipeline data information into BIM software to realize automatic modeling.
Further, the original pipeline data information comprises a point number, an upper point number, an abscissa, an ordinate, a ground elevation, a pipe diameter or hole number, a buried depth, a material and remarks.
Further, the step 1) specifically comprises the following steps:
11 Identify each pipeline data information in the electronic database;
12 By the first two-digit letter code of the point number, the type of the pipeline is determined;
13 Determining the connection trend of the same type of pipelines through the adjacent relation of the point numbers and the upper point numbers;
14 Determining the spatial distribution condition of each type of pipeline through the abscissa, the ordinate, the ground elevation and the burial depth;
15 Through pipe diameter or hole number, material and remarks, determine the attribute information of each type of pipeline.
Further, the step 2) specifically comprises:
21 Two-by-two comparison of different types of pipelines is carried out to determine the intersection point of each pipeline on a two-dimensional plane;
22 According to the buried depth and the pipe diameter of the pipeline at the intersection, judging whether the two pipelines at the intersection collide;
23 If yes, go to step 3), if no, go to step 4).
Further, in step 21), the intersection point of each pipeline is determined by searching along the pipeline in a two-dimensional plane.
Further, the step 3) specifically includes:
31 Trend correction): when two pipelines collide, according to the overall trend of each pipeline, carrying out trend statistics by statistically analyzing 20 adjacent points on two sides of the pipeline collision point, determining the overall trend of change of the burial depth, and judging the rationality of spatial distribution;
32 According to the sizes of the pipe diameters of the two collision pipelines and the overlapping length of the two pipelines at the collision point, namely the length from the intersection point to the pipe diameter edge, the pipeline is screened and corrected according to the overall trend of the pipelines, so that the spatial distribution of the pipelines is more objective and reasonable.
Further, the standardized format is a format recognized by BIM software, and comprises elevation, family, type, material, coordinate and offset.
Further, the method adopts a plug-in for BIM software secondary development, an interface of an electronic database and BIM software is established, pipeline data information in a standardized format is imported in batches, and BIM software carries out BIM automatic modeling according to the imported pipeline data information.
Furthermore, the source of the original pipeline data information comprises paper data, electronic data and pictures.
Further, the programming process is realized by means of FORTRAN programming.
Compared with the prior art, the invention has the following advantages:
1) Before BIM software modeling is introduced, after collision is detected, an avoidance pipeline is determined according to a set rule, and the minimum distance and the direction of the movement of the avoidance pipeline are automatically calculated, so that automatic avoidance is realized, the trouble of manual operation is reduced, the threshold and the cost of a modeling link are reduced, and the effectiveness, the reliability and the accuracy of automatic modeling are improved;
2) Compared with a three-dimensional full-space search inspection mode, the method has the advantages that the calculation speed is high, and the positioning precision is high;
3) The method has the advantages that pipeline classification, collision inspection, avoidance and standardized format output are completed in a FORTRAN programming mode, meanwhile, interfaces of the electronic database and BIM software are created, batch import of pipeline data and information is achieved, manual intervention and adjustment are not needed, requirements for hardware configuration are low, a BIM model which can be used as a result is automatically generated, the running speed is high, modeling efficiency is improved, and cost is reduced.
Drawings
FIG. 1 is a flow chart of an automated modeling method of the present invention;
FIG. 2 is a BIM model of an underground pipe network formed after automatic modeling by the method;
fig. 3 is a comparison diagram before and after pipeline avoidance, wherein, fig. 3a is a BIM model directly generated without collision detection and automatic avoidance, and fig. 3b is a BIM model generated after pipeline collision detection and automatic avoidance by the method.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
Examples
As shown in FIG. 1, the invention provides a rapid automatic modeling method for urban underground pipe network BIM on the basis of research and practice on the three-dimensional modeling of the urban underground pipe network BIM. Firstly, after data and information of an underground pipe network are arranged into a uniform format, the data and the information are stored into an electronic database as original pipeline information data, then pipeline classification, collision check and avoidance are completed in a FORTRAN programming mode, the data and the collision check and the avoidance are output in a standardized format and then are guided into BIM software, and a BIM three-dimensional model is automatically generated. In this embodiment, the Revit software is used to perform BIM three-dimensional modeling on the underground pipe network.
As shown in fig. 1, the present invention mainly comprises three steps: data sorting, programming processing and software modeling. This embodiment describes the three steps:
(1) Data collation
The data and information of the urban underground pipe network mainly come from existing data and general survey data, generally comprise three types of paper data, pictures and electronic data, the data information contained in the three types of paper data, pictures and electronic data are different, and in order to display all the information of the underground pipe network as comprehensively as possible, the information of the data contained in the types is unified and arranged into an electronic database to serve as original pipeline information data. In this embodiment, according to the requirements of the technical specification of urban underground pipeline detection on the type, code number, etc. of the pipeline and the requirements of the automatic modeling of the actual engineering, the construction of the original pipeline information data in the electronic database includes: the number, the point number, the upper point number, the abscissa, the ordinate, the ground elevation, the pipe diameter or the number of holes, the buried depth, the material and the remark, wherein the remark can indicate information such as non-excavation, and is shown in table 1:
table 1 electronic data base table
(2) Programming process
The programming processing steps mainly comprise pipeline classification, collision detection, automatic avoidance and standardized format output.
All pipeline data information is integrated in the electronic database and comprises various types of pipeline data information such as water supply, water discharge, gas, thermal power, communication and the like, the attribute information and the expression form of each type of pipeline are different, and the pipeline types need to be classified for collision inspection and batch automatic modeling. And (4) quickly identifying the first two-letter codes of the point numbers in the electronic database through FORTRAN programming to classify. Meanwhile, determining the connection trend of the pipeline according to the adjacent relationship between the point numbers and the upper point numbers; determining the spatial distribution condition of the pipeline through the abscissa, the ordinate, the ground elevation and the burial depth; the attribute information of the pipeline is determined through the pipe diameter or the number of holes, the material and the remarks, so that the form of the underground pipe network can be obtained.
The method specifically comprises the following steps:
11 Identify each pipeline data information in the electronic database;
12 By the first two-digit letter code of the point number, the type of the pipeline is determined;
13 Determining the connection trend of the same type of pipelines through the adjacent relation of the point numbers and the upper point numbers;
14 Determining the spatial distribution condition of each type of pipeline through the abscissa, the ordinate, the ground elevation and the burial depth;
15 Through pipe diameter or hole number, material and remarks, determine the attribute information of each type of pipeline.
The pipeline detection process inevitably generates errors, the detection burial depth is inaccurate, and the adjacent pipelines can have spatial position coincidence, namely collision, which is not in accordance with the reality, so that collision detection is needed. When collision detection is carried out, firstly, two pipelines of different types are compared pairwise, the intersection point of each pipeline on the plane is determined, and then whether collision occurs or not is judged according to the buried depth and the pipe diameter of the two pipelines. The method searches for an intersection point along a pipeline in a two-dimensional plane and then judges whether collision occurs or not from the vertical direction.
The method specifically comprises the following steps:
21 Two-by-two comparison is carried out on different types of pipelines to determine the intersection point of each pipeline on a two-dimensional plane;
22 According to the burial depth and the pipe diameter of the pipeline at the intersection, whether the two pipelines at the intersection collide is judged;
23 If yes, go to step 3), if no, go to step 4).
If collision between pipelines is detected, the avoided pipelines are determined according to a set avoidance rule, and the set avoidance rule in the embodiment is as follows: the small pipe diameter allows a large pipe diameter, the branch pipe allows a main pipe, the metal pipe allows a non-metal pipe, the pressure pipe allows a gravity pipe, and the low pressure pipe allows a high pressure pipe. And then determining the moving direction and the minimum distance of the avoidance pipeline according to the pipe diameter and the overlapped length.
The method specifically comprises the following steps:
31 According to a set avoidance rule, determining an avoidance pipeline;
32 According to the sizes of the pipe diameters of the two collision pipelines and the overlapped length, the moving direction and the minimum distance of the avoidance pipeline are determined.
After finishing pipeline classification, collision detection and automatic avoidance, the pipeline data information needs to be arranged into a format recognizable by Revit software, and pipeline data information in a standardized format is generated, where the pipeline data information in the standardized format in this embodiment is shown in table 2:
TABLE 2 Format Table recognizable to Revit software
(3) Software modeling
In the embodiment, a plug-in for secondary development of Revit software is adopted to create an interface between an electronic database and the Revit software, so that pipeline data information in a standardized format is imported in batches, and the Revit software automatically generates a BIM (building information modeling) model which can be used as a result application according to the imported pipeline data information to complete software modeling.
Example 1
In this embodiment, taking a certain intersection in the sea city as an example, the method provided by the present invention is used to perform rapid BIM automatic modeling of the underground pipe network of the intersection. The crossroad has a plurality of types of pipelines, which relate to various types such as rainwater, sewage, electric power, information and the like, and the pipelines are criss-cross.
The CAD graph is difficult to show the spatial distribution condition of pipelines, only the plane distribution condition of the pipelines can be shown, and at four corners of a crossroad, due to the dense pipelines, a plurality of cross points exist, whether collision occurs or not is difficult to judge, as shown in figure 2, after the method provided by the invention is adopted for automatic modeling, a BIM three-dimensional model of an underground pipe network is formed, the spatial distribution condition of the underground pipe network is shown on the BIM three-dimensional dynamic model graph, the hierarchical relation of different pipelines in the vertical direction is clearly shown, and whether collision occurs or not is easy to distinguish through dynamic rotation to different angles. Meanwhile, the BIM three-dimensional model diagram can well show the pipe diameter of the pipeline and attachments such as an inspection well, a rain grate and the like at the joint, and valuable model information is provided for subsequent construction, operation and maintenance, pipeline relocation design and the like.
Fig. 3 is a comparison graph before and after pipeline avoidance, and fig. 3a is a directly generated BIM model, because collision between pipelines is caused by errors, four collision points are formed in the graph, and collision conditions are different. The method comprises the following steps of (first step, a rapid rejection experiment, which is aimed at filtering out a component set which is far away from each other and has no intersection and can not collide completely by a rapid search method to find out a potentially intersected component set, (second step, a straddle experiment accurately finds intersection, which is aimed at carrying out intersection test on the potentially intersected component set pair to judge whether an object has a penetration phenomenon, third step, trend correction, which is to carry out trend statistical analysis by statistically analyzing 20 adjacent points at two sides of a pipeline collision point according to the overall trend of the two pipelines and judge and analyze the reasonability of spatial distribution, and fourth step, automatically discriminate the overall trend of the pipeline according to the pipe diameters of the two collision pipelines and the coincidence length (the length from the intersection point to the pipe diameter edge) of the two pipelines at the collision point, so that a graph (3 b) is a BIM model generated after collision detection and automatic avoidance, and the collision points in the graph (3 a) are automatically adjusted after being modeled, thereby realizing automatic collision correction, reducing the manual avoidance operation cost and reducing the trouble of manual avoidance.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A quick automatic modeling method for urban underground pipe network BIM is characterized in that the method generates pipeline data information in a standardized format after programming original pipeline data information stored in an electronic database, and then imports BIM software to realize automatic modeling, wherein the programming comprises the following steps:
1) Classifying the original pipeline data information according to the attribute information and the expression form of each pipeline;
2) Judging whether each pipeline collides according to the classified pipeline data information, if so, executing the step 3), and if not, executing the step 4);
3) According to a set avoidance rule, modifying corresponding pipeline data information, performing automatic avoidance, and executing the step 2);
4) Converting the pipeline data information after the automatic avoidance is finished into pipeline data information in a standardized format, and importing the pipeline data information into BIM software to realize automatic modeling;
the original pipeline data information comprises a point number, an upper point number, a horizontal coordinate, a vertical coordinate, a ground elevation, a pipe diameter or hole number, a buried depth, a material and remarks;
the step 1) specifically comprises the following steps:
11 Identify each pipeline data information in the electronic database;
12 By the first two-digit letter code of the point number, the type of the pipeline is determined;
13 Determining the connection trend of the same type of pipelines through the adjacent relation of the point numbers and the upper point numbers;
14 Determining the spatial distribution condition of each type of pipeline through the abscissa, the ordinate, the ground elevation and the burial depth;
15 Determining attribute information of various types of pipelines according to pipe diameters or hole numbers, materials and remarks;
the step 2) specifically comprises the following steps:
21 Two-by-two comparison is carried out on different types of pipelines to determine the intersection point of each pipeline on a two-dimensional plane;
22 According to the buried depth and the pipe diameter of the pipeline at the intersection, judging whether the two pipelines at the intersection collide;
23 If yes, executing step 3), if no, executing step 4);
in said step 21), determining the intersection point of each pipeline by searching along the pipeline in a two-dimensional plane;
the step 3) specifically comprises the following steps:
31 According to a set avoidance rule, determining an avoidance pipeline;
32 According to the sizes of the pipe diameters of the two collision pipelines and the overlapped length, the moving direction and the minimum distance of the avoidance pipeline are determined.
2. The BIM rapid automatic modeling method for the urban underground pipe network according to claim 1, wherein the standardized format is a BIM software identification format, and comprises elevation, family, type, material, coordinate and offset.
3. The method according to claim 2, wherein a plug-in for BIM secondary development is adopted in the method, an interface between an electronic database and BIM software is created, pipeline data information in a standardized format is imported in batches, and BIM software carries out BIM automatic modeling according to the imported pipeline data information.
4. The BIM rapid automatic modeling method for urban underground pipe network according to claim 1, wherein the source of the original pipeline data information comprises paper data, electronic data and drawings.
5. The BIM rapid automatic modeling method for the urban underground pipe network according to claim 1, wherein the programming process is realized by a FORTRAN programming mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832863.8A CN110532720B (en) | 2019-09-04 | 2019-09-04 | Rapid automatic modeling method for urban underground pipe network BIM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832863.8A CN110532720B (en) | 2019-09-04 | 2019-09-04 | Rapid automatic modeling method for urban underground pipe network BIM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110532720A CN110532720A (en) | 2019-12-03 |
| CN110532720B true CN110532720B (en) | 2023-04-18 |
Family
ID=68666787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910832863.8A Active CN110532720B (en) | 2019-09-04 | 2019-09-04 | Rapid automatic modeling method for urban underground pipe network BIM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110532720B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888148A (en) * | 2019-12-09 | 2020-03-17 | 浙江浙能嘉华发电有限公司 | Underground pipe network viewing method based on GNSS positioning and APP |
| CN111241622A (en) * | 2020-01-19 | 2020-06-05 | 杭州群核信息技术有限公司 | Self-adaptive water heating electric pipeline adjusting system and method |
| CN111767619A (en) * | 2020-06-29 | 2020-10-13 | 中国二十冶集团有限公司 | Rapid modeling method for existing municipal engineering pipeline model |
| CN112231874A (en) * | 2020-10-19 | 2021-01-15 | 中铁建华南建设有限公司 | Method and device for establishing underground pipeline model, computer equipment and storage medium |
| CN112417569B (en) * | 2020-12-03 | 2023-03-24 | 上海电力设计院有限公司 | Revit primitive labeling method, device, equipment and storage medium |
| CN112926105B (en) * | 2021-03-04 | 2023-06-02 | 中恩工程技术有限公司 | Method for rapidly and finely modeling municipal pipe network by using BIM |
| CN113159440A (en) * | 2021-04-30 | 2021-07-23 | 上海城建信息科技有限公司 | Municipal pipeline planning management method and system based on BIM and GIS |
| CN113392462B (en) * | 2021-06-29 | 2023-09-26 | 西安理工大学 | Sewage pipe network rapid modeling method based on Revit secondary development |
| CN113609552A (en) * | 2021-07-07 | 2021-11-05 | 杭州群核信息技术有限公司 | Method, device, equipment and storage medium for generating pipeline fitting model |
| CN113569322A (en) * | 2021-08-03 | 2021-10-29 | 上海山南勘测设计有限公司 | Virtual collision detection and positioning integrated method and device for underground pipe network in urban core area |
| CN117540511A (en) * | 2023-10-12 | 2024-02-09 | 中交建筑集团有限公司 | BIM modeling-based pipeline management and control method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105701264A (en) * | 2014-11-28 | 2016-06-22 | 星际空间（天津）科技发展有限公司 | Automatic construction method for underground pipe network |
| CN107103115A (en) * | 2017-03-24 | 2017-08-29 | 中冶南方城市建设工程技术有限公司 | A kind of town road pipeline optimizing method for disposing based on BIM |
| CN107885912A (en) * | 2017-10-24 | 2018-04-06 | 星际空间（天津）科技发展有限公司 | A kind of Fast Collision Detection Algorithm of magnanimity underground utilities |
-
2019
- 2019-09-04 CN CN201910832863.8A patent/CN110532720B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105701264A (en) * | 2014-11-28 | 2016-06-22 | 星际空间（天津）科技发展有限公司 | Automatic construction method for underground pipe network |
| CN107103115A (en) * | 2017-03-24 | 2017-08-29 | 中冶南方城市建设工程技术有限公司 | A kind of town road pipeline optimizing method for disposing based on BIM |
| CN107885912A (en) * | 2017-10-24 | 2018-04-06 | 星际空间（天津）科技发展有限公司 | A kind of Fast Collision Detection Algorithm of magnanimity underground utilities |
Non-Patent Citations (5)
| Title |
|---|
| "地下管线BIM自动建模技术的应用研究";尚颖霞等;《第十五届全国工程物探与岩土工程测试学术大会论文集》;20171108;第145-150页 * |
| 城市地下管线三维自动化建模技术研究;张欣欣;《科技创新导报》;20180621(第18期);第97-98页 * |
| 基于BIM技术的地下管线三维可视化及其应用;陈军等;《工程地球物理学报》;20180530(第03期);第65-72页 * |
| 基于BIM技术的既有地下管线三维自动化建模的研究;吴锋等;《工程地球物理学报》;20160730(第04期);第96-101页 * |
| 基于物探成果数据驱动的地下管线及构筑物BIM建模技术研究与实践;胡绕;《工程勘察》;20180628;第46卷(第07期);第28-34页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110532720A (en) | 2019-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110532720B (en) | Rapid automatic modeling method for urban underground pipe network BIM | |
| Ukhwah et al. | Asphalt pavement pothole detection using deep learning method based on YOLO neural network | |
| CN107066750B (en) | Method for solving electromechanical comprehensive pipeline arrangement | |
| CN102693334B (en) | Based on the dynamic component recognition methods of CAD electronic drawing | |
| CN101915570B (en) | Vanishing point based method for automatically extracting and classifying ground movement measurement image line segments | |
| CN113050472B (en) | Intelligent zero-direct-discharge dynamic sewage supervision system based on pipe network early warning analysis technology | |
| CN110334390B (en) | Method and device for identifying outer wall in computer-aided design (CAD), storage medium and processor | |
| CN111814289B (en) | Water supply pipe network pipe burst analysis method and analysis system based on schema theory | |
| CN111854758A (en) | Indoor navigation map conversion method and system based on building CAD (computer-aided design) drawing | |
| CN112182693B (en) | BIM-based underground garage inspection method and system | |
| CN115455521A (en) | Water supply and drainage machine room system diagram generation method, device, equipment and storage medium | |
| CN109598705B (en) | Automatic generation method of inspection procedure based on detection characteristics | |
| CN111428289B (en) | Design method of hyperbolic cooling tower crawling ladder | |
| Yin et al. | An automated layer classification method for converting CAD drawings to 3D BIM models | |
| CN111091534A (en) | Target detection-based pcb defect detection and positioning method | |
| Pan et al. | Recovering building information model from 2D drawings for mechanical, electrical and plumbing systems of ageing buildings | |
| CN110929309A (en) | Automatic verification method for protection section list document in urban rail signal system | |
| JP2017091519A (en) | Method for searching for space for setting articles and recording medium readable by computer storing program for search | |
| CN103810310A (en) | Parameterization determination method for pitch foaming module equipment oriented to bituminous mixing plant | |
| CN110377768B (en) | Intelligent graph recognition system and method | |
| CN110688439A (en) | Method for automatically identifying and analyzing enterprise information based on regional geocoding | |
| CN109086472B (en) | Real estate diagram changing parameterization drawing method and device based on size constraint | |
| CN105759724A (en) | Intelligent programming method | |
| CN115577424A (en) | Method, device, equipment and storage medium for calculating construction engineering quantity | |
| TW202209119A (en) | Wafer bin map based root cause analysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |