CN108804768A - One kind making the light-weighted method of BIM models - Google Patents
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Abstract
The invention discloses one kind making the light-weighted method of BIM models, the present invention carries out BIM model files by BIM lightweights engine the separation of geological information and attribute information, light-weight technologg is carried out to visuals again, while depth optimization to the three-dimensional scenic figure part shown and data content while having been done according to the data organization feature of BIM, element type situation.To reach under the premise of retaining all information integrities, ensure the purpose that current most of BIM model files can be shown in common notebook, smart mobile phone or PAD smoothnesses.Even for the data model of ultra-large type, also can load simultaneously and smooth display on common notebook, while ensureing the aesthetic effect of display, the management for large scene and large space provides safeguard.Simultaneously when user terminal loads BIM models for the first time, BIM platforms carry out data compression and encryption to model automatically, being capable of saving network flow and model load time.
Description
Technical field
The present invention relates to building engineering fields, making the light-weighted method of BIM models more particularly, to one kind.
Background technology
The full name in English of BIM is Building Information Modeling, i.e. Building Information Model.It is to build
Based on every relevant information data of engineering project, by really believing possessed by digital information analogue simulation building
Breath realizes the work(such as project supervision, estate management, equipment management, Digital manufacturing, engineering management by three-dimensional building model
Energy.
Accurate architectural engineering BIM models, it is also more in data volume, to bring BIM models storage with
Obstacle in terms of transmission and bottleneck problem.So that often the data volume of a model can reach up to a hundred million even upper gigabits
Amount of bytes.In today that hardware storage capacity continues to develop, although the data problem of storage gigabytes has no longer been difficult matter,
In view of cost problem, the data storage of a large amount of gigabytes is still industry problem, and brings more as transmission utilizes these
Easily the iterative problems such as 100,000,000 even the data of gigabytes.Now, the storage problem of the super large data volume of BIM models is in the industry
Widespread consensus.
And along with the development of internet, more and more BIM users wish directly to browse threedimensional model at the ends Web.
Traditional BIM application programs are all based on desktop client end, and need higher allocation of computer：High frequency CPU, big memory, independence
Video card.During moving towards the ends Web, mobile terminal from desktop end, due to limited by browser computing capability and memory etc.
Influence, the data organization and consumption pattern to model based on desktop must make corresponding adjustment, that is, need more to use
Threedimensional model Lightweight Technology carries out advanced treating to model.
Invention content
The present invention is to overcome the above situation insufficient, it is desirable to provide a kind of technical solution that can be solved the above problems.
One kind making the light-weighted method of BIM models, the specific steps are：
S1, model foundation：Perfect architectural engineering BIM models are established on BIM modeling softwares；
S2, model upload：The BIM models completed will be established to be uploaded in BIM platforms；
S3, model backup：The BIM models being uploaded are carried out back-up processing by BIM platforms；
S4, model treatment：BIM platforms carry out the BIM models backed up out according to its internal BIM lightweights engine installed
Light-weight technologg；
S5, compression transmission：When user terminal logs in BIM platforms and carries out certain operation to BIM models, BIM platforms connect
Data compression and encryption are carried out by the operational order of user terminal, and by the feedback data of BIM models, is transmitted further to user
Terminal；
S6, offline cache：When user terminal logs in BIM platforms and carries out certain operation to BIM models, BIM platforms
By the BIM model compressions encryption after lightweight and offline cache is to user terminal.
As a further solution of the present invention：In the step S1, the present invention only support Revit2016, Revit2017 and
The BIM models that Revit2018 softwares are established；Support IFC data models；Support the importing of Bentley and Catia models.
As a further solution of the present invention：In the step S2, the present invention is using the B/S network architectures as BIM platforms
Basis so that the user terminal logged on the BIM platforms without installing plug-in unit, BIM platforms of the invention support IE11,
Chrome, Firefox, QQ browser and other major browsers directly use.
As a further solution of the present invention：In the step S3, BIM platforms back up the BIM models of upload, and
A copy of it BIM model files are transmitted on specified physical server, outer network environment operation can be isolated in physical server
BIM is serviced, and user is allowed to upload model and relevant information to local server, accomplishes maximum guarantor from the angle of information security
Card is supported.
As a further solution of the present invention：In the step S4, the BIM lightweight engines that the present invention uses are to backing up out
A BIM model files carry out geological information and attribute information separation, then to visuals carry out light-weight technologg, finally
According to the data organization feature of BIM, element type situation to the three-dimensional scenic figure part shown and data content simultaneously
Depth optimization is done.
As a further solution of the present invention：In the step S5, BIM platforms are in the feedback data progress to BIM models
When compression, it will data file is encrypted automatically, only designated user's terminal of input decipherment algorithm can just obtain in advance
The feedback data of BIM platforms outflow.
As a further solution of the present invention：In the step S6, BIM model files when user terminal is initially opened,
BIM platforms are exporting the same of the feedback data of the operational order for compressing encrypted foundation user terminal and the BIM models generated
When, also by the BIM model compressions encryption after lightweight and offline cache is to user terminal.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention carries out BIM model files by BIM lightweights engine the separation of geological information and attribute information, then right
Visuals carries out light-weight technologg, then is mounted by way of database.Simultaneously according to the data organization feature of BIM, component
Type cases are to the three-dimensional scenic figure part shown and data content while having done depth optimization, ensure the efficiency of load
With fluency.To reach under the premise of retaining all information integrities, ensure that current most of BIM model files can be general
The purpose that logical notebook, smart mobile phone or PAD smoothnesses are shown.Even for the data model of ultra-large type, also can commonly take down notes
Load simultaneously and smooth display in sheet, while ensureing the aesthetic effect of display, the management for large scene and large space provides
It ensures.Simultaneously when user terminal loads BIM models for the first time, BIM platforms carry out data compression and encryption to model automatically,
It being capable of saving network flow and model load time.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the embodiment of the present invention, one kind making the light-weighted method of BIM models, the specific steps are：
S1, model foundation：Perfect architectural engineering BIM models are established on BIM modeling softwares；
S2, model upload：The BIM models completed will be established to be uploaded in BIM platforms；
S3, model backup：The BIM models being uploaded are carried out back-up processing by BIM platforms；
S4, model treatment：BIM platforms carry out the BIM models backed up out according to its internal BIM lightweights engine installed
Light-weight technologg；
S5, compression transmission：When user terminal logs in BIM platforms and carries out certain operation to BIM models, BIM platforms connect
Data compression and encryption are carried out by the operational order of user terminal, and by the feedback data of BIM models, is transmitted further to user
Terminal；
S6, offline cache：When user terminal logs in BIM platforms and carries out certain operation to BIM models, BIM platforms
By the BIM model compressions encryption after lightweight and offline cache is to user terminal.
The present invention operation principle be：
The present invention carries out BIM model files by BIM lightweights engine the separation of geological information and attribute information, then right
Visuals carries out light-weight technologg, then is mounted by way of database.Simultaneously according to the data organization feature of BIM, component
Type cases are to the three-dimensional scenic figure part shown and data content while having done depth optimization, ensure the efficiency of load
With fluency.To reach under the premise of retaining all information integrities, ensure that current most of BIM model files can be general
The purpose that logical notebook, smart mobile phone or PAD smoothnesses are shown.
Even for the data model (file size 1G+, 10,000,000+triangular facet, 100,000+number of components) of ultra-large type, also can
Load simultaneously and smooth display on common notebook, while ensureing the aesthetic effect of display, it is large scene and large space
Management provide safeguard.
Simultaneously when user terminal loads BIM models for the first time, BIM platforms automatically carry out at data compression and encryption model
Reason, ensures the efficiency in data transmission and security situation, the transmission compression ratio of average data is about 1:10 (depending on specific file feelings
Depending on condition, individual cases compression ratio is more than 1:It 100 or more), being capable of saving network flow and model load time.
And BIM model files, after user terminal is initially opened, BIM platforms can be on the subscriber terminal to BIM model texts
Part is automatically data cached, is loaded by the local cache of user terminal when being again turned on BIM models, it is only necessary to micro network transmission.
The time for being again turned on BIM models can greatly be shortened by test and reduction is again turned on the flow consumption of BIM models,
Concrete condition is as shown in the table：
| Test model | IFC files | Load time for the first time | Load time again | Flow again |
| HouseDEMO | 67.5M | 21s | 2s | <0.1M |
| DEMOBuilding | 373.6M | 251s | 42s | <0.1M |
In data transmission, present invention introduces Encryption Algorithm leading in the world, to the model data of user terminal load with
Local cache data carries out data compression and encryption on the subscriber terminal, ensures directly capture BIM data in user terminal
File ensures the data safety of BIM models.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
Claims (7)
1. one kind making the light-weighted method of BIM models, which is characterized in that its specific steps are：
S1, model foundation：Perfect architectural engineering BIM models are established on BIM modeling softwares；
S2, model upload：The BIM models completed will be established to be uploaded in BIM platforms；
S3, model backup：The BIM models being uploaded are carried out back-up processing by BIM platforms；
S4, model treatment：BIM platforms carry out light weight according to its internal BIM lightweights engine installed to the BIM models backed up out
Change is handled；
S5, compression transmission：When user terminal logs in BIM platforms and carries out certain operation to BIM models, BIM platforms receive use
The operational order of family terminal, and the feedback data of BIM models is subjected to data compression and encryption, it is transmitted further to user's end
End；
S6, offline cache：When user terminal logs in BIM platforms and carries out certain operation to BIM models, BIM platforms will be light
The encryption of BIM model compressions and offline cache after quantization is to user terminal.
2. according to claim 1 make the light-weighted method of BIM models, which is characterized in that in the step S1, the present invention
The BIM models for only supporting Revit2016, Revit2017 and Revit2018 software to establish；Support IFC data models；It supports
The importing of Bentley and Catia models.
3. according to claim 1 make the light-weighted method of BIM models, which is characterized in that in the step S2, the present invention
Basis using the B/S network architectures as BIM platforms so that the user terminal logged on the BIM platforms is not necessarily to install plug-in unit,
The BIM platforms of the present invention support IE11, Chrome, Firefox, QQ browser and other major browsers directly to use.
4. according to claim 1 make the light-weighted method of BIM models, which is characterized in that in the step S3, BIM is flat
Platform backs up the BIM models of upload, and a copy of it BIM model files is transmitted on specified physical server, object
Outer network environment operation BIM services can be isolated in reason server, and user is allowed to upload model and relevant information to local service
Device accomplishes that maximum guarantee is supported from the angle of information security.
5. according to claim 1 make the light-weighted method of BIM models, which is characterized in that in the step S4, the present invention
The BIM lightweights engine of use carries out a BIM model files backed up out the separation of geological information and attribute information, then right
Visuals carries out light-weight technologg, finally according to the data organization feature of BIM, element type situation to the three dimensional field that is shown
Scape visuals and data content have done depth optimization simultaneously.
6. according to claim 1 make the light-weighted method of BIM models, which is characterized in that in the step S5, BIM is flat
Platform is when the feedback data to BIM models is compressed, it will data file is encrypted automatically, only input decryption in advance
Designated user's terminal of algorithm can just obtain the feedback data of BIM platforms outflow.
7. according to claim 1 make the light-weighted method of BIM models, which is characterized in that in the step S6, BIM moulds
Type file when user terminal is initially opened, BIM platforms in the encrypted operational order according to user terminal of output compression and
While the feedback data of the BIM models of generation, also by the BIM model compressions encryption after lightweight, simultaneously offline cache is whole to user
End.
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Cited By (14)
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| CN109410331A (en) * | 2018-11-15 | 2019-03-01 | 中铁第六勘察设计院集团有限公司 | Shield-tunneling construction BIM management platform architecture method is built based on WebGL |
| CN110020391A (en) * | 2019-04-17 | 2019-07-16 | 华夏天信（北京）智能低碳技术研究院有限公司 | Coal mine work area designs the offline dissemination method of GIM mathematical model |
| CN110207656A (en) * | 2019-07-14 | 2019-09-06 | 中核华纬工程设计研究有限公司 | A kind of BIM model based on container and building sedimentation inclination monitoring system and method |
| CN110347128A (en) * | 2019-07-14 | 2019-10-18 | 中核华纬工程设计研究有限公司 | A kind of intelligent building centralized management system and method |
| CN110362927A (en) * | 2019-07-17 | 2019-10-22 | 广州擎云计算机科技有限公司 | A kind of BIM model light-weight technologg method and system that multilayer optimizes step by step |
| CN110442810A (en) * | 2019-08-08 | 2019-11-12 | 广州华建工智慧科技有限公司 | A kind of mobile terminal BIM model intelligent buffer method based on DeepFM proposed algorithm |
| CN111666433A (en) * | 2020-04-30 | 2020-09-15 | 中铁第一勘察设计院集团有限公司 | Railway four-electrical engineering BIM model Web lightweight method |
| CN111797153A (en) * | 2020-07-01 | 2020-10-20 | 广联达科技股份有限公司 | BIM (building information modeling) model preview method and device, computer equipment and readable storage medium |
| CN112818429A (en) * | 2021-01-19 | 2021-05-18 | 中国建筑第八工程局有限公司 | BIM model lightweight method based on digital-analog separation |
| CN113255051A (en) * | 2021-07-07 | 2021-08-13 | 天津市天房科技发展股份有限公司 | Method and device for lightening large-volume BIM (building information modeling) model |
| CN114611185A (en) * | 2022-02-28 | 2022-06-10 | 镇江西门子母线有限公司 | Method and device for realizing bus lightweight monitoring system |
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| CN116627580A (en) * | 2023-07-25 | 2023-08-22 | 江苏正泰泰杰赛智能科技有限公司 | Multi-level cache three-dimensional model loading method for webpage end |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109410331A (en) * | 2018-11-15 | 2019-03-01 | 中铁第六勘察设计院集团有限公司 | Shield-tunneling construction BIM management platform architecture method is built based on WebGL |
| CN110020391A (en) * | 2019-04-17 | 2019-07-16 | 华夏天信（北京）智能低碳技术研究院有限公司 | Coal mine work area designs the offline dissemination method of GIM mathematical model |
| CN110207656A (en) * | 2019-07-14 | 2019-09-06 | 中核华纬工程设计研究有限公司 | A kind of BIM model based on container and building sedimentation inclination monitoring system and method |
| CN110347128A (en) * | 2019-07-14 | 2019-10-18 | 中核华纬工程设计研究有限公司 | A kind of intelligent building centralized management system and method |
| CN110362927B (en) * | 2019-07-17 | 2022-05-24 | 广州擎云计算机科技有限公司 | Multilayer step-by-step optimized BIM model lightweight processing method and system |
| CN110362927A (en) * | 2019-07-17 | 2019-10-22 | 广州擎云计算机科技有限公司 | A kind of BIM model light-weight technologg method and system that multilayer optimizes step by step |
| CN110442810A (en) * | 2019-08-08 | 2019-11-12 | 广州华建工智慧科技有限公司 | A kind of mobile terminal BIM model intelligent buffer method based on DeepFM proposed algorithm |
| CN111666433A (en) * | 2020-04-30 | 2020-09-15 | 中铁第一勘察设计院集团有限公司 | Railway four-electrical engineering BIM model Web lightweight method |
| CN111666433B (en) * | 2020-04-30 | 2023-03-17 | 中铁第一勘察设计院集团有限公司 | Railway four-electrical engineering BIM model Web lightweight method |
| CN111797153A (en) * | 2020-07-01 | 2020-10-20 | 广联达科技股份有限公司 | BIM (building information modeling) model preview method and device, computer equipment and readable storage medium |
| CN112818429A (en) * | 2021-01-19 | 2021-05-18 | 中国建筑第八工程局有限公司 | BIM model lightweight method based on digital-analog separation |
| CN113255051B (en) * | 2021-07-07 | 2021-09-14 | 天津市天房科技发展股份有限公司 | Method and device for lightening large-volume BIM (building information modeling) model |
| CN113255051A (en) * | 2021-07-07 | 2021-08-13 | 天津市天房科技发展股份有限公司 | Method and device for lightening large-volume BIM (building information modeling) model |
| CN114611185A (en) * | 2022-02-28 | 2022-06-10 | 镇江西门子母线有限公司 | Method and device for realizing bus lightweight monitoring system |
| CN114707215A (en) * | 2022-03-31 | 2022-07-05 | 启迪设计集团股份有限公司 | BIM model lightweight method based on scene customization |
| CN114978525A (en) * | 2022-04-26 | 2022-08-30 | 邹瀚霆 | Data security authentication method and system based on BIM |
| CN114978525B (en) * | 2022-04-26 | 2023-10-13 | 深筑城市科技(深圳)有限公司 | BIM-based data security authentication method and system |
| CN116627580A (en) * | 2023-07-25 | 2023-08-22 | 江苏正泰泰杰赛智能科技有限公司 | Multi-level cache three-dimensional model loading method for webpage end |
| CN116627580B (en) * | 2023-07-25 | 2023-09-22 | 江苏正泰泰杰赛智能科技有限公司 | Multi-level cache three-dimensional model loading method for webpage end |
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Application publication date: 20181113 |
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| WD01 | Invention patent application deemed withdrawn after publication |