CN116775930A - BIM+GIS-based data combination and visual display method and system - Google Patents
BIM+GIS-based data combination and visual display method and system Download PDFInfo
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Abstract
The invention discloses a BIM+GIS-based data combination and visual display method and system, wherein an urban GIS map model and an urban BIM map model are built, and the urban GIS map model and the urban BIM map model are fused based on a geographic position relationship to obtain a fusion map model; acquiring flood disaster information in real time, and importing the flood disaster information into a fusion map model for disaster evaluation analysis and early warning to obtain disaster evaluation data; acquiring target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain integral safety route information; and displaying the whole safety route information according to a preset mode based on the fusion map model. According to the method, urban disaster analysis can be performed based on GIS and BIM, and macroscopic and microscopic disaster escape routes are generated, so that users can grasp urban disaster conditions more intuitively and correspond to disaster conditions more efficiently.
Description
Technical Field
The invention relates to the technical field of BIM and GIS, in particular to a method and a system for combining and visually displaying data based on BIM and GIS.
Background
The concept of Internet plus is formally proposed and then fermented rapidly, so that various industries attempt to promote the development of the industries by means of Internet thinking, and the building construction industry is no exception. With the gradual progress of BIM application, the projects of simply applying BIM are less and less, and more BIM is integrated with other advanced technologies or application systems so as to exert greater comprehensive value.
GIS is a computer-based tool which can analyze and process space information, and in model analysis at city level, it is often necessary to analyze city building and distribution at macroscopic and microscopic angles, and the organic combination of GIS and BIM can just solve the problem. However, in the prior art, the application scene of urban model analysis and urban disaster early warning based on BIM+GIS is lacking, which is not beneficial to the informatization development of cities.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a method and a system for combining and visually displaying data based on BIM+GIS.
The first aspect of the invention provides a method for combining and visually displaying data based on BIM+GIS, which comprises the following steps:
geographic data based on GIS in the target city area is obtained;
building a map according to the geographic data to obtain an urban GIS map model;
building a building model and a road model based on BIM in a target city area, and constructing a city BIM map model based on the building model and the road model;
based on the geographic position relationship, fusing the urban GIS map model and the urban BIM map model to obtain a fused map model;
acquiring flood disaster information in real time, and importing the flood disaster information into a fusion map model for disaster evaluation analysis and early warning to obtain disaster evaluation data;
acquiring target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain integral safety route information; and displaying the whole safety route information according to a preset mode based on the fusion map model.
In this scheme, the map is built according to the geographic data to obtain an urban GIS map model, which specifically comprises:
acquiring geographic topography data, remote sensing image data and urban three-dimensional data in a target urban area based on a GIS;
The geographic data comprise the relief topography data, remote sensing image data and urban three-dimensional data;
and constructing an initial map model according to the topography data and the remote sensing image data, and importing the urban three-dimensional data into the initial map model to form the urban GIS map model.
In this scheme, the building model and the road model based on BIM in the target city area are obtained, and the city BIM map model is constructed based on the building model and the road model, specifically:
constructing a first map model based on BIM according to the area and the outline of the target city area;
and acquiring a building model and a road model based on BIM in the target city area, and importing the building model and the road model into a first map model to form a city BIM map model.
In this scheme, acquire flood disaster information in real time, with the flood disaster information import fuses map model and carries out disaster evaluation analysis and early warning, obtain disaster evaluation data, specifically do:
acquiring flood disaster information in real time;
the flood disaster information is imported into a fusion map model, disaster evaluation calculation is carried out on the target city area according to the topography situation and the flood disaster information of the target city area, and the target city area is partitioned based on the calculation result to obtain a primary disaster area, a secondary disaster area and a tertiary disaster area;
Generating regional early warning information based on the grade of the disaster region and the corresponding situation of the change of the topography;
the disaster evaluation data comprise primary disaster areas, secondary disaster areas, tertiary disaster areas and area early warning information.
In this scheme, obtain target building information, import the map model of fusion with target building information, carry out macroscopic and microcosmic route analysis based on GIS and BIM, obtain whole safe route information, specifically do:
selecting a target building from the fusion map model and acquiring corresponding target building information;
importing the information of the target building into a fusion map model to obtain the position information of the target building and a BIM building model;
generating a safe evacuation route according to the position information and disaster evaluation data by combining an urban GIS map model;
according to the BIM building model, combining with the urban BIM map model, generating a building escape route and a road escape route;
and importing the safe evacuation route, the building escape route and the road escape route into a fusion map model and generating overall safe route information.
In this scheme, based on the fused map model, the whole safety route information is displayed according to a preset mode, specifically:
Acquiring GIS-based remote sensing image data in a target city area in real time;
carrying out noise reduction and standardization pretreatment on the remote sensing image data image, and carrying out feature extraction on the remote sensing image data after treatment to obtain color feature data;
obtaining contrast color characteristic data in the historical remote sensing image data;
performing data comparison and difference calculation on the color characteristic data and the contrast color characteristic data, and marking an influence area with the difference larger than a preset difference to obtain a flood disaster influence area;
and carrying out route correction on the whole safety route information based on the flood disaster influence area to obtain corrected whole safety route information.
In this scheme, based on the fused map model, the whole safety route information is displayed according to a preset mode, specifically:
importing the corrected integral safety route information into a fusion map model;
carrying out route division on the whole safety route information through a fusion map model to obtain macroscopic route information based on GIS and microscopic route information based on BIM;
and displaying the macroscopic route information and the microscopic route information by presetting terminal equipment and based on a fused map model.
The second aspect of the present invention also provides a system for combining and visually displaying data based on bim+gis, which is characterized in that the system comprises: the system comprises a memory and a processor, wherein the memory comprises a program based on BIM+GIS data combination and visual display, and the program based on BIM+GIS data combination and visual display realizes the following steps when being executed by the processor:
geographic data based on GIS in the target city area is obtained;
building a map according to the geographic data to obtain an urban GIS map model;
building a building model and a road model based on BIM in a target city area, and constructing a city BIM map model based on the building model and the road model;
based on the geographic position relationship, fusing the urban GIS map model and the urban BIM map model to obtain a fused map model;
acquiring flood disaster information in real time, and importing the flood disaster information into a fusion map model for disaster evaluation analysis and early warning to obtain disaster evaluation data;
acquiring target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain integral safety route information; and displaying the whole safety route information according to a preset mode based on the fusion map model.
In this scheme, the map is built according to the geographic data to obtain an urban GIS map model, which specifically comprises:
acquiring geographic topography data, remote sensing image data and urban three-dimensional data in a target urban area based on a GIS;
the geographic data comprise the relief topography data, remote sensing image data and urban three-dimensional data;
and constructing an initial map model according to the topography data and the remote sensing image data, and importing the urban three-dimensional data into the initial map model to form the urban GIS map model.
In this scheme, the building model and the road model based on BIM in the target city area are obtained, and the city BIM map model is constructed based on the building model and the road model, specifically:
constructing a first map model based on BIM according to the area and the outline of the target city area;
and acquiring a building model and a road model based on BIM in the target city area, and importing the building model and the road model into a first map model to form a city BIM map model.
The invention discloses a BIM+GIS-based data combination and visual display method and system, wherein an urban GIS map model and an urban BIM map model are built, and the urban GIS map model and the urban BIM map model are fused based on a geographic position relationship to obtain a fusion map model; acquiring flood disaster information in real time, and importing the flood disaster information into a fusion map model for disaster evaluation analysis and early warning to obtain disaster evaluation data; acquiring target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain integral safety route information; and displaying the whole safety route information according to a preset mode based on the fusion map model. According to the method, urban disaster analysis can be performed based on GIS and BIM, and macroscopic and microscopic disaster escape routes are generated, so that users can grasp urban disaster conditions more intuitively and correspond to disaster conditions more efficiently.
Drawings
FIG. 1 is a flow chart of a method of BIM+GIS-based data integration and visual presentation of the present application;
FIG. 2 shows a flow chart of the urban GIS map model acquisition of the present application;
FIG. 3 shows a flow chart of the urban BIM map model acquisition of the present application;
FIG. 4 shows a block diagram of a BIM+GIS-based data combining and visualization system of the present application.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.
FIG. 1 shows a flow chart of a method of BIM+GIS-based data integration and visual presentation of the present application.
As shown in fig. 1, the first aspect of the present application provides a method for combining and visually displaying data based on bim+gis, which includes:
S102, geographic data based on GIS in a target city area is obtained;
s104, building a map according to the geographic data to obtain an urban GIS map model;
s106, acquiring a building model and a road model based on BIM in the target city area, and constructing a city BIM map model based on the building model and the road model;
s108, fusing the urban GIS map model and the urban BIM map model based on the geographic position relationship to obtain a fused map model;
s110, acquiring flood disaster information in real time, and importing the flood disaster information into a fusion map model for disaster evaluation analysis and early warning to obtain disaster evaluation data;
s112, acquiring target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain integral safety route information;
and S114, displaying the whole safety route information according to a preset mode based on the fusion map model.
The urban GIS map model is a map model in a macroscopic sense, and macroscopic information such as building distribution, main road positions, topography and the like in urban areas can be obtained through the map model; the urban BIM map model is a map model in a microscopic sense, specifically comprises urban buildings and refined road models (roadway, small road and other road models), and can be used for carrying out macroscopic and microscopic layer combination analysis in an urban area through fusion of the two map models, so that urban disasters can be further subjected to refined analysis and early warning, and corresponding route information is obtained.
Fig. 2 shows a flowchart of the urban GIS map model acquisition of the present invention.
According to the embodiment of the invention, map construction is performed according to the geographic data to obtain an urban GIS map model, which is specifically as follows:
s202, geographic topography data, remote sensing image data and urban three-dimensional data in a target urban area are obtained based on GIS;
s204, the geographic data comprise the relief topography data, remote sensing image data and urban three-dimensional data;
and S206, constructing an initial map model according to the topography data and the remote sensing image data, and importing the urban three-dimensional data into the initial map model to form an urban GIS map model.
It should be noted that, the three-dimensional city data includes three-dimensional solid models of a trunk road, a river, a mountain forest area, a large building and the like in a city area. Through the city GIS map model, the target city can be visually checked in three dimensions from the macroscopic level.
FIG. 3 shows a flow chart of the urban BIM map model acquisition of the present invention.
According to the embodiment of the invention, the building model and the road model based on BIM in the target city area are obtained, and the city BIM map model is constructed based on the building model and the road model, specifically:
S302, constructing a first map model based on BIM according to the area and the outline of the target city area;
s304, acquiring a building model and a road model based on BIM in the target city area, and importing the building model and the road model into a first map model to form a city BIM map model.
It should be noted that, the city BIM map model can analyze city refined roads and routes based on BIM, and further analyze city model from microscopic level.
According to the embodiment of the invention, the flood disaster information is acquired in real time, and is imported into a fusion map model for disaster evaluation analysis and early warning, so as to obtain disaster evaluation data, which is specifically as follows:
acquiring flood disaster information in real time;
the flood disaster information is imported into a fusion map model, disaster evaluation calculation is carried out on the target city area according to the topography situation and the flood disaster information of the target city area, and the target city area is partitioned based on the calculation result to obtain a primary disaster area, a secondary disaster area and a tertiary disaster area;
generating regional early warning information based on the grade of the disaster region and the corresponding situation of the change of the topography;
The disaster evaluation data comprise primary disaster areas, secondary disaster areas, tertiary disaster areas and area early warning information.
The flood disaster information includes rainfall of the target city, river water level height, flood influence area obtained in real time, and the like. In the primary disaster area, the secondary disaster area and the tertiary disaster area, the higher the grade is, the lower the relief of the disaster area is, and the lower the influence degree of flood disasters is. And in the generation of the regional early warning information based on the grade of the disaster region and the corresponding change condition of the topography, the early warning information comprises information such as early warning grade and disaster condition, and the early warning grade is related to the grade of the disaster region and the disaster condition of the disaster region.
According to the embodiment of the invention, the method comprises the steps of obtaining the target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain the whole safety route information, wherein the method comprises the following specific steps:
selecting a target building from the fusion map model and acquiring corresponding target building information;
importing the information of the target building into a fusion map model to obtain the position information of the target building and a BIM building model;
Generating a safe evacuation route according to the position information and disaster evaluation data by combining an urban GIS map model;
according to the BIM building model, combining with the urban BIM map model, generating a building escape route and a road escape route;
and importing the safe evacuation route, the building escape route and the road escape route into a fusion map model and generating overall safe route information.
The safety evacuation route is a flood evacuation route obtained based on GIS analysis, is a route on a macroscopic level, mainly comprises information such as evacuation directions, main evacuation thoroughfares and the like, and generally the evacuation directions are evacuation from a land to a land elevation. The building escape route and the road escape route are route information of urban microcosmic layers, the building escape route is specifically an escape route in the building model, and the road escape route is a roadway and small-road escape route between buildings. According to the method, urban disaster analysis can be performed based on GIS and BIM, and macroscopic and microscopic disaster escape routes are generated, so that users can grasp urban disaster conditions more intuitively and correspond to disaster conditions more efficiently.
According to the embodiment of the invention, based on the fusion map model, the whole safety route information is displayed according to a preset mode, specifically:
Acquiring GIS-based remote sensing image data in a target city area in real time;
carrying out noise reduction and standardization pretreatment on the remote sensing image data image, and carrying out feature extraction on the remote sensing image data after treatment to obtain color feature data;
obtaining contrast color characteristic data in the historical remote sensing image data;
performing data comparison and difference calculation on the color characteristic data and the contrast color characteristic data, and marking an influence area with the difference larger than a preset difference to obtain a flood disaster influence area;
and carrying out route correction on the whole safety route information based on the flood disaster influence area to obtain corrected whole safety route information.
In the step of obtaining the contrast color characteristic data in the historical remote sensing image data, the contrast color characteristic data is specifically characteristic data obtained under the conditions of normal non-disasters and good weather in the historical remote sensing image data, and has good reference contrast effect.
According to the embodiment of the invention, based on the fusion map model, the whole safety route information is displayed according to a preset mode, specifically:
importing the corrected integral safety route information into a fusion map model;
Carrying out route division on the whole safety route information through a fusion map model to obtain macroscopic route information based on GIS and microscopic route information based on BIM;
and displaying the macroscopic route information and the microscopic route information by presetting terminal equipment and based on a fused map model.
The corrected overall safety route information includes macroscopic route information, namely, overall route direction, urban arterial road route and the like, and microscopic route information, namely, building internal route, roadway among cities and small road line information.
According to an embodiment of the present invention, further comprising:
acquiring earthquake disaster information in real time;
obtaining an earthquake influence area based on the earthquake disaster information;
acquiring a user position;
in an urban GIS map model, acquiring a user preset range based on a user position, and searching open terrain in the user preset range to obtain a plurality of refuge site positions;
the earthquake influence area is led into an urban GIS map model, and a user position is used as a starting point, and a plurality of refuge places are used as end points to conduct safety route planning, so that a plurality of initial routes are obtained;
introducing a plurality of initial routes into the urban BIM map model, and carrying out construction building and construction road section retrieval to obtain a construction building model and a construction road section model based on BIM correspondingly;
Carrying out safety route analysis based on the construction building model and the construction road section model to obtain safety route correction information;
and carrying out route correction on the plurality of initial routes based on the safety route correction information, and obtaining a plurality of pieces of earthquake safety route information.
It should be noted that, in the obtaining the user preset range based on the user position, the user preset range specifically uses the user position as a center point, and obtains a corresponding preset circumference range based on a preset radius. In the safety route planning, the urban GIS map model avoids the corresponding area based on the earthquake influence area and avoids the earthquake dangerous areas such as mountainous areas, rivers and the like existing in the preset range of the user. In the construction building model and the construction road section model, because in a plurality of initial routes, possible routes relate to construction buildings and construction roads in cities, which cause increased dangers, and the construction buildings and the construction roads are difficult to analyze from a GIS model.
According to an embodiment of the present invention, further comprising:
acquiring overall safety route information;
the method comprises the steps of sending the whole safety route information to user terminal equipment in a target city area and acquiring user position information in real time;
the user position information is imported into a fusion map model, the traffic situation of the user passing through the safety route information is calculated and analyzed, and road sections with the user passing time being longer than the preset time and the traffic being longer than the preset traffic value are marked to obtain congestion road section information;
extracting the position information of the congested road section based on the information of the congested road section to obtain a congested position point;
importing the congestion position points into a fusion map model, performing GIS-based geological analysis on the adjacent preset range of the congestion position points, and obtaining geological information in the preset range;
analyzing a safety area and a disaster hidden danger area in a preset range based on disaster evaluation data and geological information in the preset range;
importing the safety area, the disaster hidden danger area and the congestion position points into a fusion map model for safety route analysis to obtain a diversion route corresponding to each congestion position point;
and sending the diversion route to user terminal equipment for display.
In the congestion road section information, the system divides the safe route information into road sections in advance and calculates the preset time of passing each road section and the preset flow of the number of passing people. Based on the disaster evaluation data and the geological information in the preset range, analyzing the safety area and the disaster hidden danger area in the preset range, and because the flood disasters are highly correlated with the geology of the area, the system extracts the geological information in the preset range and obtains the corresponding safety area and the disaster hidden danger area based on the disaster evaluation data obtained by analysis, wherein the disaster hidden danger area is the hidden danger area where serious flood disasters or geological collapse possibly occur. The congestion location point includes at least one.
FIG. 4 shows a block diagram of a BIM+GIS-based data combining and visualization system of the present invention.
The second aspect of the present invention also provides a system 4 for combining and visually displaying data based on bim+gis, the system comprising: the memory 41 and the processor 42, wherein the memory comprises a program based on BIM+GIS data combination and visual display, and the program based on BIM+GIS data combination and visual display realizes the following steps when being executed by the processor:
Geographic data based on GIS in the target city area is obtained;
building a map according to the geographic data to obtain an urban GIS map model;
building a building model and a road model based on BIM in a target city area, and constructing a city BIM map model based on the building model and the road model;
based on the geographic position relationship, fusing the urban GIS map model and the urban BIM map model to obtain a fused map model;
acquiring flood disaster information in real time, and importing the flood disaster information into a fusion map model for disaster evaluation analysis and early warning to obtain disaster evaluation data;
acquiring target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain integral safety route information;
and displaying the whole safety route information according to a preset mode based on the fusion map model.
The urban GIS map model is a map model in a macroscopic sense, and macroscopic information such as building distribution, main road positions, topography and the like in urban areas can be obtained through the map model; the urban BIM map model is a map model in a microscopic sense, specifically comprises urban buildings and refined road models (roadway, small road and other road models), and can be used for carrying out macroscopic and microscopic layer combination analysis in an urban area through fusion of the two map models, so that urban disasters can be further subjected to refined analysis and early warning, and corresponding route information is obtained.
Fig. 2 shows a flowchart of the urban GIS map model acquisition of the present invention.
S202，S204，S206，S208，S210，——
According to the embodiment of the invention, map construction is performed according to the geographic data to obtain an urban GIS map model, which is specifically as follows:
acquiring geographic topography data, remote sensing image data and urban three-dimensional data in a target urban area based on a GIS;
the geographic data comprise the relief topography data, remote sensing image data and urban three-dimensional data;
and constructing an initial map model according to the topography data and the remote sensing image data, and importing the urban three-dimensional data into the initial map model to form the urban GIS map model.
It should be noted that, the three-dimensional city data includes three-dimensional solid models of a trunk road, a river, a mountain forest area, a large building and the like in a city area. Through the city GIS map model, the target city can be visually checked in three dimensions from the macroscopic level.
FIG. 3 shows a flow chart of the urban BIM map model acquisition of the present invention.
S302，S304，S306，S308，S310，——
According to the embodiment of the invention, the building model and the road model based on BIM in the target city area are obtained, and the city BIM map model is constructed based on the building model and the road model, specifically:
constructing a first map model based on BIM according to the area and the outline of the target city area;
And acquiring a building model and a road model based on BIM in the target city area, and importing the building model and the road model into a first map model to form a city BIM map model.
It should be noted that, the city BIM map model can analyze city refined roads and routes based on BIM, and further analyze city model from microscopic level.
According to the embodiment of the invention, the flood disaster information is acquired in real time, and is imported into a fusion map model for disaster evaluation analysis and early warning, so as to obtain disaster evaluation data, which is specifically as follows:
acquiring flood disaster information in real time;
the flood disaster information is imported into a fusion map model, disaster evaluation calculation is carried out on the target city area according to the topography situation and the flood disaster information of the target city area, and the target city area is partitioned based on the calculation result to obtain a primary disaster area, a secondary disaster area and a tertiary disaster area;
generating regional early warning information based on the grade of the disaster region and the corresponding situation of the change of the topography;
the disaster evaluation data comprise primary disaster areas, secondary disaster areas, tertiary disaster areas and area early warning information.
The flood disaster information includes rainfall of the target city, river water level height, flood influence area obtained in real time, and the like. In the primary disaster area, the secondary disaster area and the tertiary disaster area, the higher the grade is, the lower the relief of the disaster area is, and the lower the influence degree of flood disasters is. And in the generation of the regional early warning information based on the grade of the disaster region and the corresponding change condition of the topography, the early warning information comprises information such as early warning grade and disaster condition, and the early warning grade is related to the grade of the disaster region and the disaster condition of the disaster region.
According to the embodiment of the invention, the method comprises the steps of obtaining the target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain the whole safety route information, wherein the method comprises the following specific steps:
selecting a target building from the fusion map model and acquiring corresponding target building information;
importing the information of the target building into a fusion map model to obtain the position information of the target building and a BIM building model;
generating a safe evacuation route according to the position information and disaster evaluation data by combining an urban GIS map model;
According to the BIM building model, combining with the urban BIM map model, generating a building escape route and a road escape route;
and importing the safe evacuation route, the building escape route and the road escape route into a fusion map model and generating overall safe route information.
The safety evacuation route is a flood evacuation route obtained based on GIS analysis, is a route on a macroscopic level, mainly comprises information such as evacuation directions, main evacuation thoroughfares and the like, and generally the evacuation directions are evacuation from a land to a land elevation. The building escape route and the road escape route are route information of urban microcosmic layers, the building escape route is specifically an escape route in the building model, and the road escape route is a roadway and small-road escape route between buildings. According to the method, urban disaster analysis can be performed based on GIS and BIM, and macroscopic and microscopic disaster escape routes are generated, so that users can grasp urban disaster conditions more intuitively and correspond to disaster conditions more efficiently.
According to the embodiment of the invention, based on the fusion map model, the whole safety route information is displayed according to a preset mode, specifically:
Acquiring GIS-based remote sensing image data in a target city area in real time;
carrying out noise reduction and standardization pretreatment on the remote sensing image data image, and carrying out feature extraction on the remote sensing image data after treatment to obtain color feature data;
obtaining contrast color characteristic data in the historical remote sensing image data;
performing data comparison and difference calculation on the color characteristic data and the contrast color characteristic data, and marking an influence area with the difference larger than a preset difference to obtain a flood disaster influence area;
and carrying out route correction on the whole safety route information based on the flood disaster influence area to obtain corrected whole safety route information.
In the step of obtaining the contrast color characteristic data in the historical remote sensing image data, the contrast color characteristic data is specifically characteristic data obtained under the conditions of normal non-disasters and good weather in the historical remote sensing image data, and has good reference contrast effect.
According to the embodiment of the invention, based on the fusion map model, the whole safety route information is displayed according to a preset mode, specifically:
importing the corrected integral safety route information into a fusion map model;
Carrying out route division on the whole safety route information through a fusion map model to obtain macroscopic route information based on GIS and microscopic route information based on BIM;
and displaying the macroscopic route information and the microscopic route information by presetting terminal equipment and based on a fused map model.
The corrected overall safety route information includes macroscopic route information, namely, overall route direction, urban arterial road route and the like, and microscopic route information, namely, building internal route, roadway among cities and small road line information.
According to an embodiment of the present invention, further comprising:
acquiring earthquake disaster information in real time;
obtaining an earthquake influence area based on the earthquake disaster information;
acquiring a user position;
in an urban GIS map model, acquiring a user preset range based on a user position, and searching open terrain in the user preset range to obtain a plurality of refuge site positions;
the earthquake influence area is led into an urban GIS map model, and a user position is used as a starting point, and a plurality of refuge places are used as end points to conduct safety route planning, so that a plurality of initial routes are obtained;
introducing a plurality of initial routes into the urban BIM map model, and carrying out construction building and construction road section retrieval to obtain a construction building model and a construction road section model based on BIM correspondingly;
Carrying out safety route analysis based on the construction building model and the construction road section model to obtain safety route correction information;
and carrying out route correction on the plurality of initial routes based on the safety route correction information, and obtaining a plurality of pieces of earthquake safety route information.
It should be noted that, in the obtaining the user preset range based on the user position, the user preset range specifically uses the user position as a center point, and obtains a corresponding preset circumference range based on a preset radius. In the safety route planning, the urban GIS map model avoids the corresponding area based on the earthquake influence area and avoids the earthquake dangerous areas such as mountainous areas, rivers and the like existing in the preset range of the user. In the construction building model and the construction road section model, because in a plurality of initial routes, possible routes relate to construction buildings and construction roads in cities, which cause increased dangers, and the construction buildings and the construction roads are difficult to analyze from a GIS model.
The invention discloses a BIM+GIS-based data combination and visual display method and system, wherein an urban GIS map model and an urban BIM map model are built, and the urban GIS map model and the urban BIM map model are fused based on a geographic position relationship to obtain a fusion map model; acquiring flood disaster information in real time, and importing the flood disaster information into a fusion map model for disaster evaluation analysis and early warning to obtain disaster evaluation data; acquiring target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain integral safety route information; and displaying the whole safety route information according to a preset mode based on the fusion map model. According to the method, urban disaster analysis can be performed based on GIS and BIM, and macroscopic and microscopic disaster escape routes are generated, so that users can grasp urban disaster conditions more intuitively and correspond to disaster conditions more efficiently.
According to an embodiment of the present invention, further comprising:
acquiring overall safety route information;
the method comprises the steps of sending the whole safety route information to user terminal equipment in a target city area and acquiring user position information in real time;
The user position information is imported into a fusion map model, the traffic situation of the user passing through the safety route information is calculated and analyzed, and road sections with the user passing time being longer than the preset time and the traffic being longer than the preset traffic value are marked to obtain congestion road section information;
extracting the position information of the congested road section based on the information of the congested road section to obtain a congested position point;
importing the congestion position points into a fusion map model, performing GIS-based geological analysis on the adjacent preset range of the congestion position points, and obtaining geological information in the preset range;
analyzing a safety area and a disaster hidden danger area in a preset range based on disaster evaluation data and geological information in the preset range;
importing the safety area, the disaster hidden danger area and the congestion position points into a fusion map model for safety route analysis to obtain a diversion route corresponding to each congestion position point;
and sending the diversion route to user terminal equipment for display.
In the congestion road section information, the system divides the safe route information into road sections in advance and calculates the preset time of passing each road section and the preset flow of the number of passing people. Based on the disaster evaluation data and the geological information in the preset range, analyzing the safety area and the disaster hidden danger area in the preset range, and because the flood disasters are highly correlated with the geology of the area, the system extracts the geological information in the preset range and obtains the corresponding safety area and the disaster hidden danger area based on the disaster evaluation data obtained by analysis, wherein the disaster hidden danger area is the hidden danger area where serious flood disasters or geological collapse possibly occur. The congestion location point includes at least one.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units; can be located in one place or distributed to a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, where the program, when executed, performs steps including the above method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk or an optical disk, or the like, which can store program codes.
Alternatively, the above-described integrated units of the present invention may be stored in a computer-readable storage medium if implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solutions of the embodiments of the present invention may be embodied in essence or a part contributing to the prior art in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, ROM, RAM, magnetic or optical disk, or other medium capable of storing program code.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for combining and visually displaying data based on bim+gis, comprising:
geographic data based on GIS in the target city area is obtained;
building a map according to the geographic data to obtain an urban GIS map model;
building a building model and a road model based on BIM in a target city area, and constructing a city BIM map model based on the building model and the road model;
based on the geographic position relationship, fusing the urban GIS map model and the urban BIM map model to obtain a fused map model;
acquiring flood disaster information in real time, and importing the flood disaster information into a fusion map model for disaster evaluation analysis and early warning to obtain disaster evaluation data;
acquiring target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain integral safety route information; and displaying the whole safety route information according to a preset mode based on the fusion map model.
2. The method for combining and visually displaying data based on BIM+GIS according to claim 1, wherein the map building is performed according to the geographic data to obtain an urban GIS map model, specifically:
acquiring geographic topography data, remote sensing image data and urban three-dimensional data in a target urban area based on a GIS;
the geographic data comprise the relief topography data, remote sensing image data and urban three-dimensional data;
and constructing an initial map model according to the topography data and the remote sensing image data, and importing the urban three-dimensional data into the initial map model to form the urban GIS map model.
3. The method for combining and visually displaying data based on bim+gis according to claim 1, wherein the method for obtaining a building model and a road model based on BIM in a target city area, and constructing a city BIM map model based on the building model and the road model is specifically as follows:
constructing a first map model based on BIM according to the area and the outline of the target city area;
and acquiring a building model and a road model based on BIM in the target city area, and importing the building model and the road model into a first map model to form a city BIM map model.
4. The method for combining and visually displaying data based on BIM+GIS according to claim 1, wherein the method is characterized in that flood disaster information is obtained in real time, and the flood disaster information is imported into a fusion map model for disaster evaluation analysis and early warning, so as to obtain disaster evaluation data, specifically comprising the following steps:
acquiring flood disaster information in real time;
the flood disaster information is imported into a fusion map model, disaster evaluation calculation is carried out on the target city area according to the topography situation and the flood disaster information of the target city area, and the target city area is partitioned based on the calculation result to obtain a primary disaster area, a secondary disaster area and a tertiary disaster area;
generating regional early warning information based on the grade of the disaster region and the corresponding situation of the change of the topography;
the disaster evaluation data comprise primary disaster areas, secondary disaster areas, tertiary disaster areas and area early warning information.
5. The method for combining and visually displaying data based on bim+gis according to claim 4, wherein the obtaining the target building information, importing the target building information into a fusion map model, and performing macroscopic and microscopic route analysis based on GIS and BIM to obtain the overall safety route information is specifically as follows:
Selecting a target building from the fusion map model and acquiring corresponding target building information;
importing the information of the target building into a fusion map model to obtain the position information of the target building and a BIM building model;
generating a safe evacuation route according to the position information and disaster evaluation data by combining an urban GIS map model;
according to the BIM building model, combining with the urban BIM map model, generating a building escape route and a road escape route;
and importing the safe evacuation route, the building escape route and the road escape route into a fusion map model and generating overall safe route information.
6. The method for combining and visually displaying data based on bim+gis according to claim 5, wherein the method for displaying the whole safety route information based on the fusion map model is specifically as follows:
acquiring GIS-based remote sensing image data in a target city area in real time;
carrying out noise reduction and standardization pretreatment on the remote sensing image data image, and carrying out feature extraction on the remote sensing image data after treatment to obtain color feature data;
obtaining contrast color characteristic data in the historical remote sensing image data;
performing data comparison and difference calculation on the color characteristic data and the contrast color characteristic data, and marking an influence area with the difference larger than a preset difference to obtain a flood disaster influence area;
And carrying out route correction on the whole safety route information based on the flood disaster influence area to obtain corrected whole safety route information.
7. The method for combining and visually displaying data based on bim+gis according to claim 6, wherein the method for displaying the whole safety route information based on the fusion map model is specifically as follows:
importing the corrected integral safety route information into a fusion map model;
carrying out route division on the whole safety route information through a fusion map model to obtain macroscopic route information based on GIS and microscopic route information based on BIM;
and displaying the macroscopic route information and the microscopic route information by presetting terminal equipment and based on a fused map model.
8. A system for bim+gis-based data integration and visual display, the system comprising: the system comprises a memory and a processor, wherein the memory comprises a program based on BIM+GIS data combination and visual display, and the program based on BIM+GIS data combination and visual display realizes the following steps when being executed by the processor:
geographic data based on GIS in the target city area is obtained;
Building a map according to the geographic data to obtain an urban GIS map model;
building a building model and a road model based on BIM in a target city area, and constructing a city BIM map model based on the building model and the road model;
based on the geographic position relationship, fusing the urban GIS map model and the urban BIM map model to obtain a fused map model;
acquiring flood disaster information in real time, and importing the flood disaster information into a fusion map model for disaster evaluation analysis and early warning to obtain disaster evaluation data;
acquiring target building information, importing the target building information into a fusion map model, and carrying out macroscopic and microscopic route analysis based on GIS and BIM to obtain integral safety route information; and displaying the whole safety route information according to a preset mode based on the fusion map model.
9. The system for combining and visually displaying data based on bim+gis according to claim 8, wherein the map building is performed according to the geographic data to obtain an urban GIS map model, specifically:
acquiring geographic topography data, remote sensing image data and urban three-dimensional data in a target urban area based on a GIS;
The geographic data comprise the relief topography data, remote sensing image data and urban three-dimensional data;
and constructing an initial map model according to the topography data and the remote sensing image data, and importing the urban three-dimensional data into the initial map model to form the urban GIS map model.
10. The system for combining and visually displaying data based on bim+gis according to claim 8, wherein the obtaining building model and road model based on BIM in the target city area, and building the city BIM map model based on the building model and road model, specifically comprises:
constructing a first map model based on BIM according to the area and the outline of the target city area;
and acquiring a building model and a road model based on BIM in the target city area, and importing the building model and the road model into a first map model to form a city BIM map model.
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