CN115713161A - Building information management system based on BIM technology - Google Patents
Building information management system based on BIM technology Download PDFInfo
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Abstract
The invention discloses a building information management system based on BIM technology, comprising: the building information management and control system comprises a BIM architecture layering unit, a BIM building information model building unit and a BIM building information management and control unit; the BIM architecture layering unit is used for performing architecture layering processing on the building information integral architecture according to a building information management standard system standard; the BIM building information model construction unit is used for constructing a corresponding model according to the relation between the building information and the business, and storing the constructed model in the BIM building information control unit; the BIM building information management and control unit is used for managing building information, and a user can check corresponding building information through the BIM building information management and control unit. Refined management applications such as BIM building information, building quality safety control and construction progress management are developed through a building information management system, and necessary technical means are provided for visualization construction dynamics, aid decision making, scheduling commands and the like.
Description
Technical Field
The invention relates to an information management technology, in particular to a building information management system based on a BIM technology.
Background
At present, the integration degree of construction enterprises in China is low, information generated among the enterprises is complex in type, diverse in form and large in quantity, and the information integration and sharing degree is low, so that the frequent unsmooth information communication in the project implementation process is caused, information resources are difficult to integrate effectively, the requirements of modern buildings on high standards of reasonably shortening the construction period, reducing the construction cost, improving the construction quality, reducing the construction risk and the like are difficult to meet, and the improvement of the engineering project management efficiency is restrained to a great extent.
Therefore, the BIM is combined with a new technology, and engineering project information management is introduced, so that the building engineering project collaborative management efficiency is improved, and the research and development of the BIM in the field of building management are promoted.
Disclosure of Invention
The invention provides a building information management system based on a BIM (building information modeling) technology, which aims to solve the problems that in the prior art, the integration degree of building enterprises in China is not high, the types of information generated among the enterprises are complex, the forms are various, the quantity is huge, and the information integration and sharing degree is low, so that the frequent information communication is not smooth in the project implementation process, the information resources are difficult to be effectively integrated, the requirements of modern buildings on high standards of reasonably shortening the construction period, reducing the construction cost, improving the construction quality, reducing the construction risk and the like are difficult to meet, and the improvement of the engineering project management efficiency is greatly restricted.
In order to achieve the purpose, the invention provides the following technical scheme:
a building information management system based on BIM technology, comprising: the building information management and control system comprises a BIM architecture layering unit, a BIM building information model building unit and a BIM building information management and control unit;
the BIM architecture layering unit is used for performing architecture layering processing on the building information integral architecture according to a building information management standard system standard;
the BIM building information model construction unit is used for constructing a corresponding model according to the relation between the building information and the business, and storing the constructed model in the BIM building information control unit;
the BIM building information management and control unit is used for managing building information, and a user can check corresponding building information through the BIM building information management and control unit.
Wherein the BIM architecture layer unit comprises: BIM data architecture, BIM business architecture and BIM technology architecture;
the BIM data architecture is used for providing a business logic basis for the BIM business architecture, and comprises building comprehensive data, building management data, project schedule management data and supervision management data;
the BIM business framework is used for converting high-level business of building information management into operable construction business, and the construction business comprises a service object and a corresponding project coordination stage;
the BIM technical architecture is used for providing technical support for the BIM data architecture and the BIM business architecture.
Wherein, BIM building information model construction unit includes: the system comprises an IFC model building module and a lightweight model building module;
the IFC model building module is used for building a corresponding incidence relation between the building information data and the BIM model based on an IFC standard and building an IFC model based on the corresponding incidence relation;
the lightweight model building module is used for converting a source file in the BIM into a lightweight model file and a model attribute data file in a unified format through the model lightweight conversion plug-in, and building a lightweight model based on the lightweight model file and the model attribute data file.
Wherein, BIM building information management and control unit includes: the system comprises a relational database, a building data management module and a BIM (building information modeling) management and control terminal;
the relational database is used for storing and managing the analyzed lightweight model data, and the analyzed lightweight model data comprises semantic information and geometric information;
the building data management module is used for managing building information data and a system and providing required data and parameters corresponding to system configuration for the BIM control terminal;
and the BIM control terminal is used for checking and corresponding operation of the required building information data by the user.
Wherein the IFC model building module comprises: a model hierarchical loading submodule;
in the process of constructing the IFC model, carrying out dynamic loading processing on the BIM through a model hierarchical loading submodule; dividing the spatial structure of the BIM by using octree and LoD fusion technology, and establishing a model component spatial index; then, based on a Deflate data compression algorithm, carrying out data compression on the BIM; giving importance weight to the BIM model component according to the volume ratio of the BIM model component and the user demand degree; and carrying out dynamic incremental loading on the BIM model component based on the scene visual range, caching the model component in the loading process, and acquiring the dynamically loaded BIM.
In the process of constructing the IFC model, geometric filtering and semantic cleaning are firstly carried out on information data in the BIM model, components without geometry are removed, semantic filtering is carried out, and the simplified IFC model is obtained; and performing geometric transformation on the simplified IFC model, performing outer surface extraction on IFC objects of different levels, associating the IFC model after the geometric transformation with the extracted IFC objects of different levels based on an LOD mapping rule, performing semantic mapping on the associated IFC model, and acquiring semantic information.
In the process of constructing the lightweight model, building information lightweight model attribute data files are established based on a relational database, and according to a relational database triggering process, attribute information and relational constraint information of the building information lightweight model are managed in a unified manner and data services are provided for the outside;
the building information lightweight model attribute data file comprises a model structure relation and a model attribute table, wherein the model structure relation comprises all models, sub-models and members, and the model attribute table comprises information corresponding to model attribute names, attribute values and attribute classifications.
Wherein, BIM management and control terminal includes: a retrieval end;
based on a standard organization type coding standard, coding the building information data at a retrieval end to obtain a building information classification coding structure table;
the method comprises the steps that a user sends a retrieval request through a BIM management and control terminal, after a retrieval end receives a corresponding retrieval instruction, the retrieval end calls a building information classification coding structure table according to the retrieval instruction, corresponding information data are obtained according to codes, dynamic loading is carried out on the information data through a picture stream loading mode based on an interactive rendering mode, and the loaded interactive information data are displayed on the BIM management and control terminal.
Wherein, building data management module includes: a risk source automatic identification submodule;
according to the building construction data and construction experience, the risk source automatic identification submodule automatically analyzes words and sentences related to risks, safety risk identification rules are formulated according to the analyzed words and sentences, risk technical parameters in the building construction drawings are identified by the safety risk identification rules, the risk technical parameters are associated with construction progress to obtain risk source prediction items, and new risk source prediction items are continuously added to the risk source prediction items according to the building construction progress.
The method comprises the steps of defining types and sequential searching strategies of different drawings to be identified according to different construction engineering types in the process of identifying risk technical parameters in the construction engineering drawings by using a safety risk identification rule, defining technical parameters required by the different types of drawings based on a grammar rule of a defined programming language, designing a directional image identification searching method, carrying out semantic analysis on identified drawing information based on algorithms of grammar matching, topology matching and graph matching, obtaining technical parameters related to safety risks, calling the established safety risk identification rule, carrying out logic judgment and calculation, listing a risk list in construction, associating a risk source with a risk source code based on a coding rule of the risk source, and forming unique marks of the different risk sources.
Compared with the prior art, the invention has the following advantages:
a building information management system based on BIM technology, comprising: the building information management and control system comprises a BIM architecture layering unit, a BIM building information model building unit and a BIM building information management and control unit; the BIM architecture layering unit is used for performing architecture layering processing on the building information integral architecture according to a building information management standard system standard; the BIM building information model construction unit is used for constructing a corresponding model according to the relation between the building information and the business, and storing the constructed model in the BIM building information control unit; the BIM building information management and control unit is used for managing building information, and a user can check corresponding building information through the BIM building information management and control unit. The building information management system is used for developing fine management applications such as BIM virtual construction, quality safety control, construction group progress management and the like, the organic management effects of building construction quality, safety, progress and investment are exerted, and necessary technical means are provided for visualization construction dynamics, aid decision making, scheduling command and the like.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a structural diagram of a building information management system based on a BIM technique according to an embodiment of the present invention;
fig. 2 is a flowchart of a building information management system based on BIM technology in an embodiment of the present invention;
fig. 3 is a structure diagram of a BIM architecture hierarchical unit in a building information management system based on a BIM technology in an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The embodiment of the invention provides a building information management system based on a BIM technology, which comprises the following components: the building information management and control system comprises a BIM architecture layering unit, a BIM building information model building unit and a BIM building information management and control unit;
the BIM architecture layering unit is used for performing architecture layering processing on the building information integral architecture according to a building information management standard system standard;
the BIM building information model building unit is used for building a corresponding model according to the relation between the building information and the business and storing the built model in the BIM building information control unit;
the BIM building information management and control unit is used for managing building information, and a user can check corresponding building information through the BIM building information management and control unit.
The working principle of the technical scheme is as follows: the BIM architecture layering unit is used for performing architecture layering processing on the building information integral architecture according to a building information management standard system standard; the BIM building information model building unit is used for building a corresponding model according to the relation between the building information and the business and storing the built model in the BIM building information control unit; the BIM building information management and control unit is used for managing building information, and a user can check corresponding building information through the BIM building information management and control unit. The construction information management system is used for operating the traditional planning design, organization management, construction and completion acceptance, realizing the preliminary building of a construction engineering information model according to the summary information of the construction engineering from the planning stage, deepening the information model bearing the summary information of the construction engineering from the design stage, enriching and optimizing various information in the construction process into the model from the construction stage, supplementing the information model delivered at the completion delivery stage in the operation and maintenance stage, and adding the operation and maintenance information of basic facilities, thereby building and applying a complete digital product covering all stages of the construction engineering; the cooperative work of each stage, each specialty and each participant is realized, the information transfer among the stages and the information sharing of the whole process are ensured, the difficult points of various technologies and management in the construction process of the building engineering are mainly solved, and the digital, information and intelligent development of the building construction is promoted.
The beneficial effects of the above technical scheme are: the BIM architecture layering unit can integrate the relevant information of the construction project, model information parameters are intelligently set through the BIM construction information model building unit, the model information is automatically correlated, and the building information is controlled through the BIM construction information control unit, so that the communication and communication efficiency of project management personnel is greatly improved.
In another embodiment, the BIM architecture hierarchical unit includes: BIM data architecture, BIM business architecture and BIM technology architecture;
the BIM data architecture is used for providing a business logic basis for the BIM business architecture, and comprises building comprehensive data, building management data, project schedule management data and supervision management data;
the BIM business framework is used for converting high-level business of building information management into operable construction business, and the construction business comprises a service object and a corresponding project coordination stage;
the BIM technical architecture is used for providing technical support for the BIM data architecture and the BIM business architecture.
The working principle of the technical scheme is as follows: the data architecture provides information data which accord with business logic and information physics for building engineering construction management, and is an information data layer based on the business architecture; the business architecture is operable conversion of business strategy targets, and the business architecture service objects comprise: designing a unit, a supervision unit and a construction unit; the technical architecture provides technical support for the upper-layer business architecture, data architecture and application architecture, and comprises BIM infrastructure, three-dimensional digital technology, data management and application service technology.
The beneficial effects of the above technical scheme are: and (3) building a BIM business framework by using a BIM technology and taking a BIM data framework and a technical framework as a basis, supporting the normal operation of each business function in the system, and optimizing a management method and a flow. The building information management application based on the BIM technology comprises the following steps: engineering construction management application, project management application and supervision management application based on BIM realize the automatic flow of information, improve the efficiency of building information management business, reduce the construction management risk, reduce the construction process waste, reduce production cost, improve construction quality and efficiency, and integrally promote the building information application level through the integrated operation of a building information management application platform based on BIM technology.
In another embodiment, the BIM building information model construction unit includes: the system comprises an IFC model building module and a lightweight model building module;
the IFC model building module is used for building a corresponding incidence relation between the building information data and the BIM model based on an IFC standard and building an IFC model based on the corresponding incidence relation;
the lightweight model building module is used for converting a source file in the BIM into a lightweight model file and a model attribute data file in a unified format through the model lightweight conversion plug-in, and building a lightweight model based on the lightweight model file and the model attribute data file.
The working principle of the technical scheme is as follows: the IFC model building module is used for building a corresponding incidence relation between the building information data and the BIM model based on an IFC standard and building an IFC model based on the corresponding incidence relation; the lightweight model building module is used for converting a source file in the BIM into a lightweight model file and a model attribute data file in a unified format through the model lightweight conversion plug-in, and building a lightweight model based on the lightweight model file and the model attribute data file. Information exchange based on IFC data standards is carried out between different BIM models through the BIM models so as to ensure the smoothness of information exchange and sharing between the different BIM models; the monitoring data are integrated on the BIM lightweight model to be visualized, and managers check the corresponding monitoring data through the BIM control terminal.
The beneficial effects of the above technical scheme are: the IFC model building module is used for building a corresponding incidence relation between the building information data and the BIM model based on an IFC standard and building an IFC model based on the corresponding incidence relation; the lightweight model building module is used for converting a source file in the BIM into a lightweight model file and a model attribute data file in a unified format through the model lightweight conversion plug-in, and building a lightweight model based on the lightweight model file and the model attribute data file. The IFC model can reduce the complexity of work and improve the wholeness ability of project, and the lightweight model can be analyzed and handled massive data, makes corresponding data show in BIM management and control terminal.
In another embodiment, the BIM building information managing and controlling unit includes: the system comprises a relational database, a building data management module and a BIM (building information modeling) management and control terminal;
the relational database is used for storing and managing the analyzed lightweight model data, and the analyzed lightweight model data comprises semantic information and geometric information;
the building data management module is used for managing building information data and a system and providing required data and parameters corresponding to system configuration for the BIM control terminal;
and the BIM control terminal is used for checking and corresponding operation of the required building information data by the user.
The working principle of the technical scheme is as follows: the relational database is used for storing and managing the analyzed lightweight model data, and the analyzed lightweight model data comprises semantic information and geometric information; the building data management module is used for managing building information data and a system and providing required data and parameters corresponding to system configuration for the BIM control terminal; and the BIM control terminal is used for checking and corresponding operation of the required building information data by the user.
The beneficial effects of the above technical scheme are: the relational database is used for storing and managing the analyzed lightweight model data, and the analyzed lightweight model data comprises semantic information and geometric information; the building data management module is used for managing building information data and a system and providing required data and parameters corresponding to system configuration for the BIM control terminal; and the BIM management and control terminal is used for checking and corresponding operating the required building information data by the user. The function of providing unified data service for each business application system is realized.
In another embodiment, the IFC model building module includes: a model hierarchical loading submodule;
in the process of building the IFC model, dynamically loading the BIM model through a model hierarchical loading submodule; dividing the spatial structure of the BIM by using octree and LoD fusion technology, and establishing a model component spatial index; then, based on a Deflate data compression algorithm, carrying out data compression on the BIM; giving importance weight to the BIM model component according to the volume ratio of the BIM model component and the user demand degree; and carrying out dynamic incremental loading on the BIM model component based on the scene visual range, caching the model component in the loading process, and acquiring the dynamically loaded BIM.
The octree is based on the space decomposition of a given domain, the whole domain of the model is divided along the three axis directions, and an octree root cube and eight subcubes covering the storage information and the bounding boxes of all IFC objects of the whole domain are created. Repeating recursive decomposition on each subcube, and further refining until a single bounding box is distributed to a plurality of cubes until the maximum depth of the tree is reached; in order to prevent the loss of critical internal detail information of the model caused by the fact that only the external outline component of the model is loaded during preloading, a corresponding relation table of octrees, hierarchical detail and visual distances Di is established for the component in advance, the mapping relation of the pre-fetching distances Di of different levels of LoD and corresponding LoD level model components is defined in advance, the model components corresponding to the LoD precision in the visual range are displayed according to the distances Di, and unnecessary details are hidden.
The working principle of the technical scheme is as follows: the information of the BIM model comprises geometric information and semantic information, wherein the semantic information mainly comprises: analyzing all components and characteristic elements of the model file, analyzing the basic attribute of each component in sequence, and finally extracting the corresponding attribute set;
in the BIM, an attribute set is mainly associated with a component through an association relation, the attribute set is merged by adopting a character string matching mode, then, fields of BIM model data instances are identified, if the data information of other fields except GUID is identified to be the same, the two attribute data instances are considered to be the same, one of the two attribute data instances is deleted, and the definition of the association relation is changed; acquiring structural information in a BIM model based on analysis of incidence relations such as communication relations and position relations between components, performing applications such as building information engineering emergency rescue and path optimization based on the BIM, and acquiring the incidence relations contained in the components based on reverse attributes of the components; the geometric information of the BIM model comprises the appearance size and the corresponding spatial position of an object, geometric expression attributes of components with the same geometric shape derived based on the same modeling system can be combined into the same BIM data example, repeated geometric expression examples existing in the BIM model are identified and deleted, and the components with the same shape in the BIM model are identified based on geometric relative unified expression;
after the BIM is processed and optimized, redundant semantic information in the original model is deleted, and files needing to be displayed are stored in a relational database in a group of basic geometric units based on the combination and dispersion of components with the same shape and different positions.
The beneficial effects of the above technical scheme are: in the process of building the IFC model, dynamically loading the BIM model through a model hierarchical loading submodule; dividing the spatial structure of the BIM by using octree and LoD fusion technology, and establishing a model component spatial index; then, based on a Deflate data compression algorithm, carrying out data compression on the BIM; giving importance weight to the BIM model component according to the volume ratio of the BIM model component and the user demand degree; and carrying out dynamic incremental loading on the BIM model component based on the scene visual range, caching the model component in the loading process, and acquiring the dynamically loaded BIM. Based on Web access in the BIM control terminal, the functions of dynamic loading and efficient display of the building information model are realized.
In another embodiment, in the process of constructing the IFC model, geometric filtering and semantic cleaning are firstly carried out on information data in the BIM model, components without geometry are removed, semantic filtering is carried out, and the simplified IFC model is obtained; and geometrically converting the simplified IFC model, extracting the outer surfaces of IFC objects of different levels, associating the IFC model after the geometric conversion with the extracted IFC objects of different levels based on an LOD mapping rule, and performing semantic mapping on the associated IFC model to acquire semantic information.
The working principle of the technical scheme is as follows: analyzing the IFC data, acquiring geometric information and corresponding semantic information of the model components, reconstructing an association relationship among the components according to an inheritance relationship among the components, and eliminating the components which do not contain the geometric information; traversing the geometric structures of the screened components, converting the relative position relation among the components into a uniform Cartesian coordinate system, and acquiring the entity structure of the whole model; for the LOD mapping rule, the geometric representation part of an IFC model object needs to be converted into a simplified B-Rep structure of CityGML, an IFC file is read by a program, the IFC geometric model is decomposed and converted into a B-Rep model, then the B-Rep model is read, the outer surface of each converted B-Rep is extracted to generate an outer surface model, and finally LOD outer surface mapping of different levels is obtained based on the outer surface model to generate the LOD geometric model of CityGML.
The beneficial effects of the above technical scheme are: in the IFC model building process, firstly, geometric filtering and semantic cleaning are carried out on information data in a BIM model, components without geometry are removed, semantic filtering is carried out, and a simplified IFC model is obtained; and performing geometric transformation on the simplified IFC model, performing outer surface extraction on IFC objects of different levels, associating the IFC model after the geometric transformation with the extracted IFC objects of different levels based on an LOD mapping rule, performing semantic mapping on the associated IFC model, and acquiring semantic information. Thereby realizing the accurate management of a large amount of building information data.
In another embodiment, in the process of constructing the lightweight model, building information lightweight model attribute data files are established based on a relational database, and according to a relational database triggering process, attribute information and relational constraint information of the building information lightweight model are managed in a unified manner, and data services are provided for the outside;
the building information lightweight model attribute data file comprises a model structure relation and a model attribute table, wherein the model structure relation comprises all models, sub-models and members, and the model attribute table comprises information corresponding to model attribute names, attribute values and attribute classifications.
The working principle of the technical scheme is as follows: because BIM modeling software at present is various in types and various in model file formats, the lightweight model needs to support all mainstream model source file types at present; because the size of a BIM model source file applied to building information management at present can reach dozens of GB, the size of the model file after lightweight should be one dozen times of the size of the source file so as to support efficient transmission and display of the model; the lightweight model comprises all required model attribute data and geometric information, and the geometric information ensures that the model is not distorted when displayed, so that one-time lightweight conversion is realized.
Model attribute data and model relation information (including the inclusion relation among models, sub-models, components and parts) are accurately and efficiently extracted from the lightweight model; and simultaneously, the extracted data is stored in a relational database so as to facilitate the application program to display, analyze, count and search the data.
And comprehensively selecting a model operation interaction mode and a dynamic rendering mechanism according to the size of the lightweight model, the service application scene, the network environment condition, the terminal system performance and the like, and realizing compatibility and adaptability to various application scenes and use environments. The lightweight model can be smoothly displayed on a BIM control terminal, the amplification display, angle transformation and attribute list display of a single component or part are supported, the model is guaranteed not to be distorted during display, and the loading time of the model is shortened as much as possible; and various complex application operations such as model approval, marking, measurement, sectioning, explosion and the like are supported.
The beneficial effects of the above technical scheme are: in the process of building the lightweight model, building information lightweight model attribute data files are built based on the relational database, attribute information and relational constraint information of the building information lightweight model are managed in a unified mode according to a relational database triggering process, and data services are provided for the outside. The functions of lightweight processing of the model, separation and extraction of the model and data and interactive rendering and display are realized through unified management.
In another embodiment, the BIM management and control terminal includes: a retrieval end;
based on a standard organization type coding standard, coding the building information data at a retrieval end to obtain a building information classification coding structure table;
the method comprises the steps that a user sends a retrieval request through a BIM control terminal, after a retrieval end receives a corresponding retrieval instruction, the retrieval end calls a building information classification coding structure table according to the retrieval instruction, corresponding information data are obtained according to codes, dynamic loading is carried out on the information data in a picture stream loading mode based on an interactive rendering mode, and the loaded interactive information data are displayed on the BIM control terminal.
The working principle of the technical scheme is as follows: based on a standard organization type coding standard, building information data are coded at a retrieval end to obtain a building information classification coding structure table; the method comprises the steps that a user sends a retrieval request through a BIM control terminal, after a retrieval end receives a corresponding retrieval instruction, the retrieval end calls a building information classification coding structure table according to the retrieval instruction, corresponding information data are obtained according to codes, dynamic loading is carried out on the information data in a picture stream loading mode based on an interactive rendering mode, and the loaded interactive information data are displayed on the BIM control terminal.
The method comprises the following steps of constructing unified data codes suitable for a public basic information model at a BIM (building information modeling) control terminal, wherein the data codes comprise: basic information codes such as project class, organization class, personnel class, file class, IFD and the like encode building information data by adopting letters, numbers, symbols or a plurality of combination modes thereof according to certain rules and requirements to form a unique code, thereby realizing the effective transmission of information.
In the process of coding the building information data at the retrieval end, adding a reference class to the model object, providing a higher-level semantic environment for data retrieval, extracting a feature item of the building text information data, acquiring a corresponding feature item weight according to the importance degree of the feature item in the text content, wherein the feature item weight is related to the frequency of the content corresponding to the retrieval, and adding the corresponding reference class through the calculation of the building information data weight, wherein the calculation formula is as follows:
wherein W (d, t) represents the weight of the term t in the text d, N represents the number of texts in the relational database, N t A text number representing the term t;
representing the inverse text word frequency corresponding to the term t; tf (d, f) denotes the number of occurrences of the term t in the text d, t j The term t corresponding to the j-th reference item, m indicates that there are m reference items.
By acquiring the weight of the building information data, a basis is provided for increasing reference classification, and a higher-level semantic environment is provided for text retrieval and sequencing.
The beneficial effects of the above technical scheme are: and based on a standard organization type coding standard, coding the building information data at a retrieval end to obtain a building information classification coding structure table. Therefore, required information data can be called quickly, and the working efficiency is improved.
In another embodiment, the building data management module includes: a risk source automatic identification submodule;
according to the building construction data and construction experience, the risk source automatic identification submodule automatically analyzes words and sentences related to risks, safety risk identification rules are formulated according to the analyzed words and sentences, risk technical parameters in the building construction drawings are identified by the safety risk identification rules, the risk technical parameters are associated with construction progress to obtain risk source prediction items, and new risk source prediction items are continuously added to the risk source prediction items according to the building construction progress.
The working principle of the technical scheme is as follows: according to the construction engineering data and construction experience, the risk source automatic identification submodule automatically analyzes words and sentences related to risks, safety risk identification rules are formulated according to the analyzed words and sentences, risk technical parameters in the construction engineering drawings are identified by the safety risk identification rules, the risk technical parameters are associated with construction progress to obtain risk source prediction items, and new risk source prediction items are continuously added to the risk source prediction items according to the construction progress conditions. And carrying out risk rating according to the risk source prediction item, wherein the risk rating is divided into a special level, a first level, a second level and a third level from large to small, and the basis for establishing an early warning mechanism is improved for the building information management system.
Big data analysis based on the BIM technology, in the process of establishing an early warning mechanism, original data and monitoring errors monitored by a real-time sensing system need to be subjected to drying removal, cleaning and redundant information elimination, and filtering and denoising of the characteristics of construction monitoring data are utilized to realize rapid pseudo-removing and denoising of measuring point data; establishing a multi-dimensional star-shaped data model covering time, space and situation (surrounding environment) based on the monitoring data, and carrying out structured processing and storage on massive and multi-source heterogeneous big data generated in construction according to data classification; based on real-time data, prediction data and patrol data, multi-source data depth fusion and early warning decision making are carried out, 80% of control values are used as warning values, 70% of control values are used as early warning values, a red-orange-yellow three-level early warning mechanism is established, the states of measuring points are automatically judged, real-time visual display risk early warning information is displayed on a BIM control terminal, and the early warning information is sent to mobile equipment of construction management personnel in real time through a mobile internet, so that the construction personnel can take emergency measures in time, and safety early warning real-time under the condition of sufficient information is realized.
The beneficial effects of the above technical scheme are: according to the building construction data and construction experience, the risk source automatic identification submodule automatically analyzes words and sentences related to risks, safety risk identification rules are formulated according to the analyzed words and sentences, risk technical parameters in the building construction drawings are identified by the safety risk identification rules, the risk technical parameters are associated with construction progress to obtain risk source prediction items, and new risk source prediction items are continuously added to the risk source prediction items according to the building construction progress. The basis for establishing an early warning mechanism is improved for the building information management system.
In another embodiment, in the process of identifying risk technical parameters in the construction engineering drawings by using the safety risk identification rule, the types and the sequential graph searching strategies of different drawings to be identified are defined according to different construction engineering types, the technical parameters required by the different types of drawings are defined based on the grammar rule of the defined programming language, a directional graph identifying and searching method is designed, the identified drawing information is subjected to semantic analysis based on algorithms of grammar matching, topology matching and graph matching, the technical parameters related to the safety risk are obtained, the established safety risk identification rule is called, logic judgment and calculation are carried out, a risk list in construction is listed, and the risk source code are associated based on the coding rule of the risk source to form unique marks of different risk sources.
The working principle of the technical scheme is as follows: in the process of identifying risk technical parameters in the construction engineering drawings by using the safety risk identification rule, the types and the sequential searching strategies of different drawings to be identified are defined according to different construction engineering types, technical parameters (such as pile diameters, construction methods, stratum soil textures, pipeline types and the like) required by the different types of drawings are defined based on a grammar rule of a defined programming language, a directional image identification searching method is designed, semantic analysis is carried out on identified drawing information (such as lines, circles, texts and the like) based on algorithms of grammar matching, topology matching and graph matching, technical parameters related to safety risks are obtained, the formulated safety risk identification rule is called, logic judgment and calculation are carried out, a risk list in construction is listed, and the risk sources and the risk source codes are associated based on the coding rule of the risk sources to form unique marks of the different risk sources.
The beneficial effects of the above technical scheme are: in the process of identifying risk technical parameters in the construction engineering drawings by using the safety risk identification rule, the types and the sequential graph searching strategies of different drawings to be identified are defined according to different construction engineering types, the technical parameters required by the different types of drawings are defined based on the grammar rule of the defined programming language, a directional graph identification searching method is designed, the identified drawing information is subjected to semantic analysis based on algorithms of grammar matching, topology matching and graph matching, technical parameters related to safety risks are obtained, the established safety risk identification rule is called, logic judgment and calculation are carried out, a risk list in construction is listed, the risk source and the risk source code are associated based on the coding rule of the risk source, and unique marks of different risk sources are formed. Thereby achieving the effective early warning effect.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A building information management system based on BIM technology, comprising: the building information management and control system comprises a BIM architecture layering unit, a BIM building information model building unit and a BIM building information management and control unit;
the BIM architecture layering unit is used for performing architecture layering processing on the building information integral architecture according to a building information management standard system standard;
the BIM building information model construction unit is used for constructing a corresponding model according to the relation between the building information and the business, and storing the constructed model in the BIM building information control unit;
the BIM building information management and control unit is used for managing building information, and a user can check corresponding building information through the BIM building information management and control unit.
2. The BIM technology-based building information management system according to claim 1, wherein the BIM architecture hierarchical unit comprises: BIM data architecture, BIM business architecture and BIM technology architecture;
the BIM data architecture is used for providing a business logic basis for the BIM business architecture, and comprises building comprehensive data, building management data, project schedule management data and supervision management data;
the BIM business architecture is used for converting high-level business of building information management into operable construction business, and the construction business comprises a service object and a corresponding project collaboration stage;
the BIM technical architecture is used for providing technical support for the BIM data architecture and the BIM business architecture.
3. The BIM technology-based building information management system according to claim 1, wherein the BIM building information model construction unit includes: the system comprises an IFC model building module and a lightweight model building module;
the IFC model building module is used for building a corresponding incidence relation between the building information data and the BIM model based on the IFC standard and building an IFC model based on the corresponding incidence relation;
the lightweight model building module is used for converting a source file in the BIM into a lightweight model file and a model attribute data file in a unified format through the model lightweight conversion plug-in, and building a lightweight model based on the lightweight model file and the model attribute data file.
4. The BIM technology-based building information management system according to claim 1, wherein the BIM building information management and control unit includes: the system comprises a relational database, a building data management module and a BIM (building information modeling) management and control terminal;
the relational database is used for storing and managing the analyzed lightweight model data, and the analyzed lightweight model data comprises semantic information and geometric information;
the building data management module is used for managing building information data and a system and providing required data and parameters corresponding to system configuration for the BIM control terminal;
and the BIM management and control terminal is used for checking and corresponding operating the required building information data by the user.
5. The BIM technology-based building information management system according to claim 3, wherein the IFC model building module comprises: a model hierarchical loading submodule;
in the process of building the IFC model, dynamically loading the BIM model through a model hierarchical loading submodule; dividing the spatial structure of the BIM by using octree and LoD fusion technology, and establishing a model component spatial index; then, based on a Deflate data compression algorithm, carrying out data compression on the BIM; giving importance weight to the BIM model component according to the volume ratio of the BIM model component and the user demand degree; and carrying out dynamic incremental loading on the BIM model component based on the scene visual range, caching the model component in the loading process, and acquiring the dynamically loaded BIM.
6. The building information management system based on the BIM technology as claimed in claim 3, wherein in the IFC model construction process, geometric filtering and semantic cleaning are firstly carried out on information data in the BIM model, components without geometry are removed, semantic filtering is carried out, and a simplified IFC model is obtained; and geometrically converting the simplified IFC model, extracting the outer surfaces of IFC objects of different levels, associating the IFC model after the geometric conversion with the extracted IFC objects of different levels based on an LOD mapping rule, and performing semantic mapping on the associated IFC model to acquire semantic information.
7. The BIM technology-based building information management system according to claim 3, wherein in the process of building a lightweight model, building information lightweight model attribute data files are built based on the relational database, and according to a relational database triggering process, the attribute information and the relational constraint information of the building information lightweight model are managed in a unified manner, and data services are provided to the outside;
the building information lightweight model attribute data file comprises a model structure relation and a model attribute table, wherein the model structure relation comprises all models, sub-models and members, and the model attribute table comprises information corresponding to model attribute names, attribute values and attribute classifications.
8. The BIM technology-based building information management system according to claim 4, wherein the BIM control terminal comprises: a retrieval end;
based on a standard organization type coding standard, building information data are coded at a retrieval end to obtain a building information classification coding structure table;
the method comprises the steps that a user sends a retrieval request through a BIM management and control terminal, after a retrieval end receives a corresponding retrieval instruction, the retrieval end calls a building information classification coding structure table according to the retrieval instruction, corresponding information data are obtained according to codes, dynamic loading is carried out on the information data through a picture stream loading mode based on an interactive rendering mode, and the loaded interactive information data are displayed on the BIM management and control terminal.
9. The BIM technology-based building information management system according to claim 4, wherein the building data management module comprises: a risk source automatic identification submodule;
according to the construction engineering data and construction experience, the risk source automatic identification submodule automatically analyzes words and sentences related to risks, safety risk identification rules are formulated according to the analyzed words and sentences, risk technical parameters in the construction engineering drawings are identified by the safety risk identification rules, the risk technical parameters are associated with construction progress to obtain risk source prediction items, and new risk source prediction items are continuously added to the risk source prediction items according to the construction progress conditions.
10. The BIM technology-based building information management system according to claim 9, wherein in the process of identifying risk technical parameters in the construction engineering drawings by using the safety risk identification rule, according to different construction engineering types, the types of different drawings to be identified and a sequential graph searching strategy are defined, technical parameters required by different types of drawings are defined based on a grammar rule defining a programming language, a directional graph recognition search method is designed, the identified drawing information is subjected to semantic analysis based on algorithms of grammar matching, topology matching and graph matching, technical parameters related to safety risks are obtained, the formulated safety risk identification rule is called, logic judgment and calculation are performed, a risk list in construction is listed, and the risk source code are associated based on the coding rule of the risk source to form unique marks of different risk sources.
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