CN117671171A - Three-dimensional plotting method and system for environmental emergency - Google Patents
Three-dimensional plotting method and system for environmental emergency Download PDFInfo
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Abstract
The invention provides a three-dimensional plotting method and a system for environmental emergency, wherein the three-dimensional plotting method for environmental emergency comprises the following steps: collecting environment data of a target area, and performing data processing on the environment data to obtain environment data after data processing; creating a three-dimensional map and an environment model by using the environment data after the data processing, and dividing an environment emergency area; and plotting and visualizing the environment emergency area. The system comprises modules corresponding to the method steps.
Description
Technical Field
The invention provides a three-dimensional plotting method and system for environmental emergency, and belongs to the technical field of three-dimensional plotting.
Background
Emergency management and decision support systems are intended to help emergency response teams, government agencies and organizations better understand and manage complex environments in emergency situations. Such systems typically include the following functions: a three-dimensional map with spatio-temporal data is provided to display information of emergency events, resource distribution, terrain, traffic, etc. Multisource data (e.g., satellite images, sensor data, weather data, hydrographic water quality data, risk sources, sensitive receptors, etc.) is integrated into a visualization platform for better understanding of emergency situations. By using mathematical models and simulation techniques, the system can simulate event evolution under different conditions and help decision makers predict possible development trends. Based on the needs of the emergency situation, the system can help to plan the best route for resource allocation, disposal engineering, emergency monitoring, and emergency response team. Real-time communication and collaboration functions are provided to enable teams and institutions to work cooperatively and share information. However, the three-dimensional labeling in the environment emergency state in the prior art has the problems of low efficiency and poor timeliness.
Disclosure of Invention
The invention provides a three-dimensional plotting method and a three-dimensional plotting system for environmental emergency, which are used for solving the problems of lower three-dimensional labeling efficiency and poorer timeliness in the environmental emergency state in the prior art, and the adopted technical scheme is as follows:
a three-dimensional plot method for environmental emergency, the three-dimensional plot method for environmental emergency comprising:
collecting environment data of a target area, and performing data processing on the environment data to obtain environment data after data processing;
creating a three-dimensional map and an environment model by using the environment data after the data processing, and dividing an environment emergency area;
and plotting and visualizing the environment emergency area.
Further, collecting the environmental data of the target area, and performing data processing on the environmental data to obtain the environmental data after data processing, including:
collecting environment data corresponding to a target area from a satellite image database, a map database and a Geographic Information System (GIS) database as first environment data information, wherein the environment data comprises geographic information (longitude, latitude, altitude and the like), topographic data, building information, meteorological data, hydrological water quality data, risk sources, sensitive receptors and the like;
Aerial photographing is carried out on a target area by using an unmanned aerial vehicle, and data such as building information, topographic information, pollutant concentration remote sensing inversion information and the like of the target area are obtained and used as second environmental data information;
and carrying out data preprocessing on the first environmental data information and the second environmental data information to obtain the environmental data after data processing, wherein the data preprocessing comprises data noise removal processing and missing value filling processing.
Further, creating a three-dimensional map and an environment model using the data-processed environment data, including:
calling the environment data after the data processing;
creating a three-dimensional map and an environment model by using a GIS and a three-dimensional modeling tool;
dividing an environment emergency area in a target area in the three-dimensional map and the environment model, wherein the environment emergency area comprises a fire disaster area, a natural disaster area and/or an accident scene area;
the method for dividing the environment emergency area in the target area in the three-dimensional map and the environment model comprises the following steps:
extracting an occurrence area of an environmental emergency in the three-dimensional map and the environmental model; wherein the environmental emergency comprises a fire, a natural disaster and/or an accident scene;
Boundary extraction is carried out on the occurrence area of the environment emergency condition, and the occurrence area with the boundary line is obtained;
extending a specific distance to the outside of the generation area with the boundary line to form an extension boundary line, and taking the area formed by the extension boundary line as an environment emergency area;
wherein the value range of the specific distance is determined according to different event types. The atmospheric pollution value range is 5km, the earthquake value range is 100km, and the water pollution value range is 200km at the downstream.
Further, plotting and visualizing the environmental emergency area, including:
calling a three-dimensional plotting tool;
marking the environment emergency area in the three-dimensional map and the environment model by using a three-dimensional plotting tool to form a marked three-dimensional map and environment model;
creating a visual interface of the three-dimensional map and the environment model, and visually displaying the marked three-dimensional map and the marked environment model through the visual interface.
Further, the following algorithm is adopted in the visualization:
step one: let the coordinates of boundary a be (a x ,a y ) The coordinates of the boundary b adjacent thereto are (b x ,b y ) The intra normal vector of ab is:
Step two: the parallel light with 45 degrees along the oblique right and downward direction is used as the light of the virtual light source, and then the included angle between the internal normal vector and the virtual light source is as follows:
wherein alpha is the included angle between the internal normal vector and the virtual light source,the vector of virtual light source rays can be marked as (1, 1), for example>
Step three: assuming that the plotted color mean value near the boundary a is RGB (R0, G0, B0), the luminance is maximum and the color is the color if α=0 based on the obtained αIs set asWhen α=pi, then its color is set toWhen α is greater than 0 and less than pi, its color is set as:
to this end, a plot image having a three-dimensional effect can be produced.
A three-dimensional plot system for environmental emergency, the three-dimensional plot system for environmental emergency comprising:
the data collection module is used for collecting the environmental data of the target area, and carrying out data processing on the environmental data to obtain the environmental data after the data processing;
the map and model creation module is used for creating a three-dimensional map and an environment model by utilizing the environment data after the data processing and dividing an environment emergency area;
and the plotting and visualization processing module is used for plotting and visualization processing of the environment emergency area.
Further, the data collection module includes:
A first environmental data information acquisition module, configured to collect environmental data corresponding to a target area from a satellite image database, a map database, and a Geographic Information System (GIS) database, as first environmental data information, where the environmental data includes geographic information (longitude, latitude, altitude, etc.), topographic data, building information, meteorological data, hydrologic water quality data, a risk source, a sensitive receptor, etc.;
the second environmental data information acquisition module is used for carrying out aerial photography on a target area by using the unmanned aerial vehicle to acquire data such as building information, topographic information, pollutant concentration remote sensing inversion information and the like of the target area as second environmental data information;
the data information preprocessing module is used for carrying out data preprocessing on the first environmental data information and the second environmental data information to obtain environmental data after data processing, wherein the data preprocessing comprises data noise removal processing and missing value filling processing.
Further, the map and model creation module includes:
the environment data calling module is used for calling the environment data after the data processing;
the creating and executing module is used for creating a three-dimensional map and an environment model by utilizing the GIS and the three-dimensional modeling tool;
The regional division module is used for dividing an environment emergency region in the target region in the three-dimensional map and the environment model, wherein the environment emergency region comprises a fire disaster region, a natural disaster region and/or an accident scene region;
wherein, the regional division module includes:
the generation region extraction module is used for extracting the generation region of the environment emergency in the three-dimensional map and the environment model; wherein the environmental emergency comprises a fire, a natural disaster and/or an accident scene;
the boundary line extraction module is used for extracting the boundary of the occurrence area of the environment emergency situation to obtain the occurrence area with the boundary line;
the extension and region demarcation module is used for extending a specific distance to the outside of the generation region with the boundary line to form an extension boundary line, and taking the region formed by the extension boundary line as an environment emergency region;
wherein the value range of the specific distance is determined according to different event types. The atmospheric pollution value range is 5km, the earthquake value range is 100km, and the water pollution value range is 200km at the downstream.
Further, the plotting and visualization processing module includes:
The tool calling module is used for calling the three-dimensional plotting tool;
the marking module is used for marking the environment emergency area in the three-dimensional map and the environment model by utilizing a three-dimensional plotting tool to form a marked three-dimensional map and environment model;
and the visual display module is used for creating a visual interface of the three-dimensional map and the environment model, and carrying out visual display on the marked three-dimensional map and the marked environment model through the visual interface.
Further, the following algorithm is adopted in the visualization:
step one: let the coordinates of boundary a be (a x ,a y ) The coordinates of the boundary b adjacent thereto are (b x ,b y ) The intra normal vector of ab is:
step two: the parallel light with 45 degrees along the oblique right and downward direction is used as the light of the virtual light source, and then the included angle between the internal normal vector and the virtual light source is as follows:
wherein alpha is the included angle between the internal normal vector and the virtual light source,the vector of virtual light source rays can be marked as (1, 1), for example>
Step three: assuming that the plotted color mean value near the boundary a is RGB (R0, G0, B0), the luminance is maximum if α=0 based on the obtained α, and the color is set to beWhen α=pi, then its color is set toWhen α is greater than 0 and less than pi, its color is set as:
To this end, a plot image having a three-dimensional effect can be produced.
The invention has the beneficial effects that:
the three-dimensional plotting method and system for environmental emergency provided by the invention enable environmental monitoring and emergency response to be more efficient and rapid. By collecting and processing the environmental data in real time, the system can quickly generate a three-dimensional map and an environmental model, and help emergency personnel to better understand the current environmental conditions. The three-dimensional map and environmental model provide accurate geographic information that facilitates emergency personnel to accurately locate problem areas, plan rescue paths, handle engineering, emergency monitoring, and resource allocation. The visualization of the data makes the environmental information easier to understand. Operators and emergency personnel can quickly acquire information in a graphical mode, and a more intelligent decision is supported. By dividing the environmental emergency area, the system facilitates implementation of emergency plans, improving the ability to cope with accident disasters and emergencies.
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FIG. 1 is a flow chart of the method of the present invention;
fig. 2 is a system block diagram of the system of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
The embodiment of the invention provides a three-dimensional plotting method for environmental emergency, as shown in fig. 1, comprising the following steps:
s1, collecting environment data of a target area, and performing data processing on the environment data to obtain environment data after data processing;
s2, creating a three-dimensional map and an environment model by using the environment data after the data processing, and dividing an environment emergency area;
s3, plotting and visualizing the environment emergency area.
The working principle of the technical scheme is as follows: data collection and processing (S1): first, the environmental monitoring system collects environmental data of the target area, which may include various environmental parameters such as weather information, terrain data, temperature, humidity, wind speed, gas concentration, water quality index, etc. These data will be transmitted to the system for processing. The data processing may include data cleaning, denoising, interpolation, etc. to ensure accuracy and integrity of the data.
Creating a three-dimensional map and an environment model (S2): with the processed environmental data, the system will create a three-dimensional map of the target area and an environmental model. This may include integration of Geographic Information System (GIS) data to establish a three-dimensional representation of the geographic features. In addition, laser radar or photogrammetry techniques may be used to obtain more detailed terrain and environmental information. In an environmental model, representations of various elements of terrain, buildings, vegetation, bodies of water, etc. may be included.
Environmental emergency area division (S2): after the environment model is established, the system can divide an environment emergency area according to specific emergency requirements. This may be an area associated with a natural disaster (e.g., flood, earthquake, fire, etc.) or an artificial event (e.g., production accident, traffic accident, etc.). The divided area will be the focus of the emergency response in case of an emergency.
Plotting and visualization processing (S3): the system will plot and visualize the environmental emergency area for better understanding and analysis of the environmental data by the operator or emergency personnel. This may include marking important places, paths, resources, treatment projects, emergency monitoring and risk sources on a map, and visualizing the environmental data in graphical, or Virtual Reality (VR) fashion, etc. This facilitates real-time monitoring and decision support to take necessary actions in case of emergency.
The technical scheme has the effects that: real-time monitoring and emergency response: this solution makes environmental monitoring and emergency response more efficient and rapid. By collecting and processing the environmental data in real time, the system can quickly generate a three-dimensional map and an environmental model, and help emergency personnel to better understand the current environmental conditions.
Accurate positioning and planning: the three-dimensional map and environmental model provide accurate geographic information that facilitates emergency personnel to accurately locate problem areas, plan rescue paths, handle engineering, emergency monitoring, and resource allocation.
Data visualization: the visualization of the data makes the environmental information easier to understand. Operators and emergency personnel can quickly acquire information in a graphical mode, and a more intelligent decision is supported.
Emergency plan support: by dividing the environmental emergency area, the system facilitates implementation of emergency plans, improving the ability to cope with accident disasters and emergencies.
In summary, this solution aims to improve the efficiency and accuracy of environmental monitoring and emergency response to better protect people's safety and property.
In one embodiment of the present invention, collecting environmental data of a target area, and performing data processing on the environmental data to obtain environmental data after data processing, including:
s101, collecting environment data corresponding to a target area from a satellite image database, a map database and a Geographic Information System (GIS) database as first environment data information, wherein the environment data comprises geographic information (longitude, latitude, altitude and the like), topographic data, building information, meteorological data, hydrological water quality data, risk sources, sensitive receptors and the like;
S102, performing aerial photography on a target area by using an unmanned aerial vehicle to obtain building information, topographic information, pollutant concentration remote sensing inversion information and other data of the target area, wherein the data are used as second environmental data information;
s103, carrying out data preprocessing on the first environmental data information and the second environmental data information to obtain the environmental data after data processing, wherein the data preprocessing comprises data noise removal processing and missing value filling processing.
The working principle of the technical scheme is as follows: data collection (S101): the system collects environmental data for a target area from a plurality of data sources. These data sources include satellite image databases, map databases, and Geographic Information System (GIS) databases. The collected environmental data includes various information such as geographical information (e.g., longitude, latitude, and altitude), topographic data (e.g., shape and elevation of mountains, rivers, etc.), building information (e.g., location, type, and elevation of the building), hydrographic water quality data (e.g., flow rate, pollutant concentration, etc.), and meteorological data (e.g., temperature, humidity, wind speed, and precipitation).
Unmanned aerial vehicle aerial photography (S102): in order to obtain more detailed building information, terrain information, contaminant concentration remote sensing inversion information, etc., the system uses an unmanned aerial vehicle to aerial photograph the target area. These aerial data include high resolution images and lidar scan data. Through the data, the system can acquire the appearance, shape and position information of the building in the target area, and more accurate data such as topographic data, pollutant concentration remote sensing inversion information and the like.
Data preprocessing (S103): the collected environmental data needs to be subjected to data preprocessing to improve the quality and consistency of the data. The data preprocessing includes a noise removal process that helps to eliminate inaccurate or outliers in the data, as well as missing value padding processes to ensure the integrity of the data. The preprocessed data will be integrated into data processed environmental data for further analysis and emergency response.
The technical scheme has the effects that: comprehensive environmental data: by collecting environmental data from multiple data sources, the system can provide more comprehensive, detailed, and multidimensional environmental information, which is very helpful for emergency response and decision making.
High resolution data: the unmanned aerial vehicle aerial photography provides high-resolution data, particularly building information and terrain data, so that an environment model is more accurate.
Improvement of data quality: the data preprocessing process is beneficial to improving the quality of data and reducing the misleading possibly caused by noise and missing values.
More accurate emergency response: based on the data-processed environmental data, the system can evaluate the emergency situation more accurately, providing more information and support for emergency response.
In summary, this solution aims to provide more comprehensive and accurate environmental data through multi-source data collection and data processing to support environmental monitoring and emergency response. This helps to improve the efficiency of decision making and resource allocation, reducing the impact of emergency events on people.
One embodiment of the invention creates a three-dimensional map and an environment model using the data-processed environment data, comprising:
s201, calling the environment data after the data processing;
s202, creating a three-dimensional map and an environment model by utilizing a GIS and a three-dimensional modeling tool;
s203, dividing an environment emergency area in a target area in the three-dimensional map and the environment model, wherein the environment emergency area comprises a fire disaster area, a natural disaster area and/or an accident scene area;
the method for dividing the environment emergency area in the target area in the three-dimensional map and the environment model comprises the following steps:
s2031, extracting an occurrence area of an environmental emergency in a three-dimensional map and an environmental model; wherein the environmental emergency comprises a fire, a natural disaster and/or an accident scene;
s2032, extracting boundaries of the occurrence area of the environment emergency situation to obtain the occurrence area with boundary lines;
S2033, extending a specific distance to the outside of the generation area with the boundary line, forming an extension boundary line, and taking the area formed by the extension boundary line as an environment emergency area;
wherein the value range of the specific distance is determined according to different event types. The atmospheric pollution value range is 5km, the earthquake value range is 100km, and the water pollution value range is 200km at the downstream.
The working principle of the technical scheme is as follows: call environment data (S201): the system firstly calls the environment data after data processing, wherein the data comprises geographic information, topographic data, building information, meteorological data, hydrological water quality data, risk sources, sensitive receptors and the like.
Creating a three-dimensional map and an environment model (S202): using Geographic Information Systems (GIS) and three-dimensional modeling tools, the system uses environmental data to create three-dimensional maps and environmental models. These tools may translate environmental data into visual three-dimensional scenes, including geographic maps, buildings, terrain, weather information, and the like.
Dividing the environment emergency area (S203): in three-dimensional maps and environmental models, the system will divide the environmental emergency area in the target area. Such environmental emergency areas may include fire areas, natural disaster areas (e.g., floods, earthquakes, etc.), and accident scene areas (e.g., chemical leaks, traffic accidents, etc.).
Partitioning flow (S2031-S2033):
s2031: first, the system will extract the area of occurrence of an environmental emergency, such as a fire.
S2032: the system then performs boundary extraction on these occurrence areas to obtain an explicit boundary line.
S2033: next, the system will extend outside the borderline a certain distance, which distance may be set according to specific requirements. The area formed by the extended boundary line is defined as an environment emergency area.
The technical scheme has the effects that: three-dimensional visualization: by utilizing the three-dimensional map and the environment model, the system can display the environment conditions of the target area in a visual mode, including geographic features, building distribution, topography and the like, so that the environment information is more visual.
And (5) identifying an environment emergency area: by dividing the environment emergency area, the system can quickly and accurately identify the area where the environment emergency situation occurs, such as a fire disaster or natural disaster area.
Epitaxial boundary line: by extending the boundary line outside the area of occurrence, the system can take into account potential spread and reach, helping to better plan emergency response and resource allocation.
Emergency response support: the three-dimensional map and the environment model provide visual environment information for emergency response, and help decision makers to better understand and process emergency situations.
In summary, this solution aims to provide more accurate and intuitive environmental emergency information through three-dimensional maps and environmental models to support emergency response and decision making.
One embodiment of the invention performs plotting and visualization processing on the environment emergency area, and comprises the following steps:
s301, calling a three-dimensional plotting tool;
s302, marking an environment emergency area in the three-dimensional map and the environment model by using a three-dimensional plotting tool to form a marked three-dimensional map and environment model;
s303, creating a visual interface of the three-dimensional map and the environment model, and visually displaying the marked three-dimensional map and the marked environment model through the visual interface.
The working principle of the technical scheme is as follows: invoking a three-dimensional plotting tool (S301): the system first invokes a three-dimensional plotting tool, a tool for labeling and visualization processing in a three-dimensional environment.
Marking (S302) the environmental emergency area: with a three-dimensional plotting tool, the system can mark and plot an environmental emergency area in a three-dimensional map and environmental model. This includes drawing border lines, adding labels, graphics or other visual elements in the three-dimensional scene to highlight the environmental emergency area.
Creating a visual interface (S303): the system then creates a visual interface through which the user can interactively browse the marked three-dimensional map and environmental model. This visual interface may be displayed on a computer screen, or may be used in a Virtual Reality (VR) or Augmented Reality (AR) environment.
The technical scheme has the effects that: visual visualization: this solution allows the user to intuitively see the location and boundaries of the environmental emergency area in a three-dimensional environment, thereby making it easier to understand and identify key areas.
Marking and plotting: through marking and plotting, a user can add notes, tags or graphics in three-dimensional maps and environmental models to convey important information and cues to help quickly understand emergency situations.
Interactivity: the visual interface provides the ability for a user to interact with the three-dimensional environment, and the user can rotate, zoom, select and view different environmental emergency areas to meet their needs.
Decision support: the technical scheme is helpful for a decision maker to better understand the environment emergency situation and supports emergency response, resource scheduling and determination of dangerous areas.
In a word, by calling a three-dimensional plotting tool to mark and visually process an environment emergency area, a more visual and interactive mode can be provided to display key environment information, so that a decision maker and emergency personnel can be helped to better cope with emergency situations.
In one embodiment of the invention, as the three-dimensional symbolic cube model needs to be drawn on the current visual interface for creating the three-dimensional map and the environment model, the number of the needed plotting is large, a large amount of storage space needs to be occupied, the time consumption is long, and the real-time performance is poor. To solve the above problem, the following algorithm is used in the visualization:
step one: let the coordinates of boundary a be (a x ,a y ) The coordinates of the boundary b adjacent thereto are (b x ,b y ) The intra normal vector of ab is:
step two: the parallel light with 45 degrees along the oblique right and downward direction is used as the light of the virtual light source, and then the included angle between the internal normal vector and the virtual light source is as follows:
wherein alpha is the included angle between the internal normal vector and the virtual light source,a vector of virtual source rays, may be labeled (1, 1),
step three: assuming that the plotted color mean value near the boundary a is RGB (R0, G0, B0), the luminance is maximum if α=0 based on the obtained α, and the color is set to beWhen α=pi, then its color is set toWhen α is greater than 0 and less than pi, its color is set as:
to this end, a plot image having a three-dimensional effect can be produced.
The technical effects of the technical scheme are as follows: the algorithm utilizes the boundary points and the included angles of the boundary points and the virtual light source rays with the included angles of 45 degrees to plot colors near the boundary points, does not need to rely on the plotted colors of other boundary points to perform visualization of the related model, greatly reduces the number of needed plotting, reduces the needed storage space, shortens the time consumption of the visualization, and improves the efficiency of three-dimensional plotting.
The embodiment of the invention provides a three-dimensional plotting system for environmental emergency, as shown in fig. 2, comprising:
the data collection module is used for collecting the environmental data of the target area, and carrying out data processing on the environmental data to obtain the environmental data after the data processing;
the map and model creation module is used for creating a three-dimensional map and an environment model by utilizing the environment data after the data processing and dividing an environment emergency area;
and the plotting and visualization processing module is used for plotting and visualization processing of the environment emergency area.
The working principle of the technical scheme is as follows: data collection and processing: first, the environmental monitoring system collects environmental data of the target area, which may include various environmental parameters such as weather information, terrain data, temperature, humidity, wind speed, gas concentration, water quality index, etc. These data will be transmitted to the system for processing. The data processing may include data cleaning, denoising, interpolation, etc. to ensure accuracy and integrity of the data.
Creating a three-dimensional map and an environmental model: with the processed environmental data, the system will create a three-dimensional map of the target area and an environmental model. This may include integration of Geographic Information System (GIS) data to establish a three-dimensional representation of the geographic features. In addition, laser radar or photogrammetry techniques may be used to obtain more detailed terrain and environmental information. In an environmental model, representations of various elements of terrain, buildings, vegetation, bodies of water, etc. may be included.
Environmental emergency area division: after the environment model is established, the system can divide an environment emergency area according to specific emergency requirements. This may be an area associated with a natural disaster (e.g., flood, earthquake, fire, etc.) or an artificial event (e.g., production accident, traffic accident, etc.). The divided area will be the focus of the emergency response in case of an emergency.
Plotting and visualization processing: the system will plot and visualize the environmental emergency area for better understanding and analysis of the environmental data by the operator or emergency personnel. This may include marking important places, paths, resources, projects, and risk sources on a map, and visually presenting environmental data in graphics, charts, or Virtual Reality (VR), among others. This facilitates real-time monitoring and decision support to take necessary actions in case of emergency.
The technical scheme has the effects that: real-time monitoring and emergency response: this solution makes environmental monitoring and emergency response more efficient and rapid. By collecting and processing the environmental data in real time, the system can quickly generate a three-dimensional map and an environmental model, and help emergency personnel to better understand the current environmental conditions.
Accurate positioning and planning: the three-dimensional map and environmental model provide accurate geographic information that facilitates emergency personnel to accurately locate problem areas, plan rescue paths, handle engineering, emergency monitoring, and resource allocation.
Data visualization: the visualization of the data makes the environmental information easier to understand. Operators and emergency personnel can quickly acquire information in a graphical mode, and a more intelligent decision is supported.
Emergency plan support: by dividing the environmental emergency area, the system facilitates implementation of emergency plans, improving the ability to cope with accident disasters and emergencies.
In summary, this solution aims to improve the efficiency and accuracy of environmental monitoring and emergency response to better protect people's safety and property.
In one embodiment of the present invention, the data collection module includes:
a first environmental data information acquisition module, configured to collect environmental data corresponding to a target area from a satellite image database, a map database, and a Geographic Information System (GIS) database, as first environmental data information, where the environmental data includes geographic information (longitude, latitude, altitude, etc.), topographic data, building information weather data, hydrological water quality data, a risk source, a sensitive receptor, etc.;
The second environmental data information acquisition module is used for carrying out aerial photography on a target area by using the unmanned aerial vehicle to acquire data such as building information, topographic information, pollutant concentration remote sensing inversion information and the like of the target area as second environmental data information;
the data information preprocessing module is used for carrying out data preprocessing on the first environmental data information and the second environmental data information to obtain environmental data after data processing, wherein the data preprocessing comprises data noise removal processing and missing value filling processing.
The working principle of the technical scheme is as follows: and (3) data collection: the system collects environmental data for a target area from a plurality of data sources. These data sources include satellite image databases, map databases, and Geographic Information System (GIS) databases. The collected environmental data includes various information such as geographical information (e.g., longitude, latitude, and altitude), topographic data (e.g., shape and elevation of mountains, rivers, etc.), building information (e.g., location, type, and elevation of the building), hydrographic water quality data (e.g., flow rate, pollutant concentration, etc.), and meteorological data (e.g., temperature, humidity, wind speed, and precipitation).
Unmanned aerial vehicle takes photo by plane: in order to obtain more detailed building information, terrain information, contaminant concentration remote sensing inversion information, etc., the system uses an unmanned aerial vehicle to aerial photograph the target area. These aerial data include high resolution images and lidar scan data. Through the data, the system can acquire the appearance, shape and position information of the building in the target area, and more accurate data such as topographic data, pollutant concentration remote sensing inversion information and the like.
Data preprocessing: the collected environmental data needs to be subjected to data preprocessing to improve the quality and consistency of the data. The data preprocessing includes a noise removal process that helps to eliminate inaccurate or outliers in the data, as well as missing value padding processes to ensure the integrity of the data. The preprocessed data will be integrated into data processed environmental data for further analysis and emergency response.
The technical scheme has the effects that: comprehensive environmental data: by collecting environmental data from multiple data sources, the system can provide more comprehensive, detailed, and multidimensional environmental information, which is very helpful for emergency response and decision making.
High resolution data: the unmanned aerial vehicle aerial photography provides high-resolution data, particularly building information and terrain data, so that an environment model is more accurate.
Improvement of data quality: the data preprocessing process is beneficial to improving the quality of data and reducing the misleading possibly caused by noise and missing values.
More accurate emergency response: based on the data-processed environmental data, the system can evaluate the emergency situation more accurately, providing more information and support for emergency response.
In summary, this solution aims to provide more comprehensive and accurate environmental data through multi-source data collection and data processing to support environmental monitoring and emergency response. This helps to improve the efficiency of decision making and resource allocation, reducing the impact of emergency events on people.
In one embodiment of the present invention, the map and model creation module includes:
the environment data calling module is used for calling the environment data after the data processing;
the creating and executing module is used for creating a three-dimensional map and an environment model by utilizing the GIS and the three-dimensional modeling tool;
the regional division module is used for dividing an environment emergency region in the target region in the three-dimensional map and the environment model, wherein the environment emergency region comprises a fire disaster region, a natural disaster region and/or an accident scene region;
wherein, the regional division module includes:
the generation region extraction module is used for extracting the generation region of the environment emergency in the three-dimensional map and the environment model; wherein the environmental emergency comprises a fire, a natural disaster and/or an accident scene;
the boundary line extraction module is used for extracting the boundary of the occurrence area of the environment emergency situation to obtain the occurrence area with the boundary line;
The extension and region demarcation module is used for extending a specific distance to the outside of the generation region with the boundary line to form an extension boundary line, and taking the region formed by the extension boundary line as an environment emergency region;
wherein the value range of the specific distance is determined according to different event types. The atmospheric pollution value range is 5km, the earthquake value range is 100km, and the water pollution value range is 200km at the downstream.
The working principle of the technical scheme is as follows: and calling the environment data: the system firstly calls the environment data after data processing, wherein the data comprises geographic information, topographic data, building information, meteorological data, hydrological water quality data, risk sources, sensitive receptors and the like.
Creating a three-dimensional map and an environmental model: using Geographic Information Systems (GIS) and three-dimensional modeling tools, the system uses environmental data to create three-dimensional maps and environmental models. These tools may translate environmental data into visual three-dimensional scenes, including geographic maps, buildings, terrain, weather information, and the like.
Dividing an environment emergency area: in three-dimensional maps and environmental models, the system will divide the environmental emergency area in the target area. Such environmental emergency areas may include fire areas, natural disaster areas (e.g., floods, earthquakes, etc.), and accident scene areas (e.g., chemical leaks, traffic accidents, etc.).
The dividing flow comprises the following steps:
first, the system will extract the area of occurrence of an environmental emergency, such as a fire.
The system then performs boundary extraction on these occurrence areas to obtain an explicit boundary line.
Next, the system will extend outside the borderline a certain distance, which distance may be set according to specific requirements. The area formed by the extended boundary line is defined as an environment emergency area.
The technical scheme has the effects that: three-dimensional visualization: by utilizing the three-dimensional map and the environment model, the system can display the environment conditions of the target area in a visual mode, including geographic features, building distribution, topography and the like, so that the environment information is more visual.
And (5) identifying an environment emergency area: by dividing the environment emergency area, the system can quickly and accurately identify the area where the environment emergency situation occurs, such as a fire disaster or natural disaster area.
Epitaxial boundary line: by extending the boundary line outside the area of occurrence, the system can take into account potential spread and reach, helping to better plan emergency response and resource allocation.
Emergency response support: the three-dimensional map and the environment model provide visual environment information for emergency response, and help decision makers to better understand and process emergency situations.
In summary, this solution aims to provide more accurate and intuitive environmental emergency information through three-dimensional maps and environmental models to support emergency response and decision making.
In one embodiment of the present invention, the plotting and visualization processing module includes:
the tool calling module is used for calling the three-dimensional plotting tool;
the marking module is used for marking the environment emergency area in the three-dimensional map and the environment model by utilizing a three-dimensional plotting tool to form a marked three-dimensional map and environment model;
and the visual display module is used for creating a visual interface of the three-dimensional map and the environment model, and carrying out visual display on the marked three-dimensional map and the marked environment model through the visual interface.
The working principle of the technical scheme is as follows: calling a three-dimensional plotting tool: the system first invokes a three-dimensional plotting tool, a tool for labeling and visualization processing in a three-dimensional environment.
Marking the environment emergency area: with a three-dimensional plotting tool, the system can mark and plot an environmental emergency area in a three-dimensional map and environmental model. This includes drawing border lines, adding labels, graphics or other visual elements in the three-dimensional scene to highlight the environmental emergency area.
Creating a visual interface: the system then creates a visual interface through which the user can interactively browse the marked three-dimensional map and environmental model. This visual interface may be displayed on a computer screen, or may be used in a Virtual Reality (VR) or Augmented Reality (AR) environment.
The technical scheme has the effects that: visual visualization: this solution allows the user to intuitively see the location and boundaries of the environmental emergency area in a three-dimensional environment, thereby making it easier to understand and identify key areas.
Marking and plotting: through marking and plotting, a user can add notes, tags or graphics in three-dimensional maps and environmental models to convey important information and cues to help quickly understand emergency situations.
Interactivity: the visual interface provides the ability for a user to interact with the three-dimensional environment, and the user can rotate, zoom, select and view different environmental emergency areas to meet their needs.
Decision support: the technical scheme is helpful for a decision maker to better understand the environment emergency situation and supports emergency response, resource scheduling and determination of dangerous areas.
In a word, by calling a three-dimensional plotting tool to mark and visually process an environment emergency area, a more visual and interactive mode can be provided to display key environment information, so that a decision maker and emergency personnel can be helped to better cope with emergency situations.
In one embodiment of the invention, as the three-dimensional symbolic cube model needs to be drawn on the current visual interface for creating the three-dimensional map and the environment model, the number of the needed plotting is large, a large amount of storage space needs to be occupied, the time consumption is long, and the real-time performance is poor. To solve the above problem, the following algorithm is used in the visualization:
step one: let the coordinates of boundary a be (a x ,a y ) The coordinates of the boundary b adjacent thereto are (b x ,b y ) The intra normal vector of ab is:
step two: the parallel light with 45 degrees along the oblique right and downward direction is used as the light of the virtual light source, and then the included angle between the internal normal vector and the virtual light source is as follows:
wherein alpha is the included angle between the internal normal vector and the virtual light source,a vector of virtual source rays, may be labeled (1, 1),
step three: assuming that the plotted color mean value near the boundary a is RGB (R0, G0, B0), the luminance is maximum if α=0 based on the obtained α, and the color is set to beWhen α=pi, then its color is set toWhen α is greater than 0 and less than pi, its color is set as:
to this end, a plot image having a three-dimensional effect can be produced.
The technical effects of the technical scheme are as follows: the algorithm utilizes the boundary points and the included angles of the boundary points and the virtual light source rays with the included angles of 45 degrees to plot colors near the boundary points, does not need to rely on the plotted colors of other boundary points to perform visualization of the related model, greatly reduces the number of needed plotting, reduces the needed storage space, shortens the time consumption of the visualization, and improves the efficiency of three-dimensional plotting.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A three-dimensional plotting method for environmental emergency, characterized in that the three-dimensional plotting method for environmental emergency comprises:
collecting environment data of a target area, and performing data processing on the environment data to obtain environment data after data processing;
creating a three-dimensional map and an environment model by using the environment data after the data processing, and dividing an environment emergency area;
and plotting and visualizing the environment emergency area.
2. The three-dimensional plotting method for environmental emergency according to claim 1, wherein collecting environmental data of a target area and performing data processing on the environmental data to obtain the environmental data after the data processing, comprises:
collecting environment data corresponding to a target area from a satellite image database, a map database and a geographic information system database as first environment data information, wherein the environment data comprises geographic information, topographic data, building information, meteorological data, hydrological water quality data, a risk source and a sensitive receptor;
Aerial photographing is carried out on a target area by using an unmanned aerial vehicle, and building information, topographic information and pollutant concentration remote sensing inversion information data of the target area are obtained and serve as second environment data information;
and carrying out data preprocessing on the first environmental data information and the second environmental data information to obtain the environmental data after data processing, wherein the data preprocessing comprises data noise removal processing and missing value filling processing.
3. The three-dimensional plotting method for environmental emergency according to claim 1, wherein creating a three-dimensional map and an environmental model using the data-processed environmental data, comprises:
calling the environment data after the data processing;
creating a three-dimensional map and an environment model by using a GIS and a three-dimensional modeling tool;
dividing an environment emergency area in a target area in the three-dimensional map and the environment model, wherein the environment emergency area comprises a fire disaster area, a natural disaster area and/or an accident scene area;
the method for dividing the environment emergency area in the target area in the three-dimensional map and the environment model comprises the following steps:
extracting an occurrence area of an environmental emergency in the three-dimensional map and the environmental model; wherein the environmental emergency comprises a fire, a natural disaster and/or an accident scene;
Boundary extraction is carried out on the occurrence area of the environment emergency condition, and the occurrence area with the boundary line is obtained;
extending a specific distance to the outside of the generation area with the boundary line to form an extension boundary line, and taking the area formed by the extension boundary line as an environment emergency area;
the specific distance value range is determined according to different event types, the atmospheric pollution value range is 5km, the earthquake value range is 100km, and the water pollution value range is 200km at the downstream.
4. The three-dimensional plotting method for environmental emergency according to claim 1, characterized in that plotting and visualizing process is performed for the environmental emergency area, comprising:
calling a three-dimensional plotting tool;
marking the environment emergency area in the three-dimensional map and the environment model by using a three-dimensional plotting tool to form a marked three-dimensional map and environment model;
creating a visual interface of the three-dimensional map and the environment model, and visually displaying the marked three-dimensional map and the marked environment model through the visual interface.
5. The three-dimensional plotting method for environmental emergency according to claim 4, wherein the following algorithm is adopted in the visualization:
Step one: let the coordinates of boundary a be (a x ,a y ) The coordinates of the boundary b adjacent thereto are (b x ,b y ) The intra normal vector of ab is:
step two: the parallel light with 45 degrees along the oblique right and downward direction is used as the light of the virtual light source, and then the included angle between the internal normal vector and the virtual light source is as follows:
wherein alpha is the included angle between the internal normal vector and the virtual light source,a vector of virtual source rays, may be labeled (1, 1),
step three: assuming that the plotted color mean value near the boundary a is RGB (R0, G0, B0), the luminance is maximum if α=0 based on the obtained α, and the color is set to beWhen α=pi, then its color is set to +.>When α is greater than 0 and less than pi, its color is set as:
to this end, a plot image having a three-dimensional effect can be produced.
6. A three-dimensional plot system for environmental emergency, the three-dimensional plot system for environmental emergency comprising:
the data collection module is used for collecting the environmental data of the target area, and carrying out data processing on the environmental data to obtain the environmental data after the data processing;
the map and model creation module is used for creating a three-dimensional map and an environment model by utilizing the environment data after the data processing and dividing an environment emergency area;
And the plotting and visualization processing module is used for plotting and visualization processing of the environment emergency area.
7. The three-dimensional plot system for environmental emergency of claim 6, wherein the data collection module comprises:
the system comprises a first environment data information acquisition module, a second environment data acquisition module and a first information processing module, wherein the first environment data acquisition module is used for collecting environment data corresponding to a target area from a satellite image database, a map database and a geographic information system database to serve as first environment data information, and the environment data comprises geographic information, topographic data, building information, meteorological data, hydrological water quality data, a risk source and a sensitive receptor;
the second environmental data information acquisition module is used for carrying out aerial photography on a target area by using the unmanned aerial vehicle to acquire building information, topographic information and pollutant concentration remote sensing inversion information data of the target area as second environmental data information;
the data information preprocessing module is used for carrying out data preprocessing on the first environmental data information and the second environmental data information to obtain environmental data after data processing, wherein the data preprocessing comprises data noise removal processing and missing value filling processing.
8. The three-dimensional plot system for environmental emergency of claim 6, wherein the map and model creation module comprises:
the environment data calling module is used for calling the environment data after the data processing;
the creating and executing module is used for creating a three-dimensional map and an environment model by utilizing the GIS and the three-dimensional modeling tool;
the regional division module is used for dividing an environment emergency region in the target region in the three-dimensional map and the environment model, wherein the environment emergency region comprises a fire disaster region, a natural disaster region and/or an accident scene region;
wherein, the regional division module includes:
the generation region extraction module is used for extracting the generation region of the environment emergency in the three-dimensional map and the environment model; wherein the environmental emergency comprises a fire, a natural disaster and/or an accident scene;
the boundary line extraction module is used for extracting the boundary of the occurrence area of the environment emergency situation to obtain the occurrence area with the boundary line;
the extension and region demarcation module is used for extending a specific distance to the outside of the generation region with the boundary line to form an extension boundary line, and taking the region formed by the extension boundary line as an environment emergency region;
The specific distance value range is determined according to different event types, the atmospheric pollution value range is 5km, the earthquake value range is 100km, and the water pollution value range is 200km at the downstream.
9. The three-dimensional plotting system for environmental emergency of claim 6, wherein said plotting and visualization processing module comprises:
the tool calling module is used for calling the three-dimensional plotting tool;
the marking module is used for marking the environment emergency area in the three-dimensional map and the environment model by utilizing a three-dimensional plotting tool to form a marked three-dimensional map and environment model;
and the visual display module is used for creating a visual interface of the three-dimensional map and the environment model, and carrying out visual display on the marked three-dimensional map and the marked environment model through the visual interface.
10. The three-dimensional plot system for environmental emergency of claim 9, wherein the following algorithm is employed in the visualization:
step one: let the coordinates of boundary a be (a x ,a y ) The coordinates of the boundary b adjacent thereto are (b x ,b y ) The intra normal vector of ab is:
step two: the parallel light with 45 degrees along the oblique right and downward direction is used as the light of the virtual light source, and then the included angle between the internal normal vector and the virtual light source is as follows:
Wherein alpha is the included angle between the internal normal vector and the virtual light source,a vector of virtual source rays, may be labeled (1, 1),
step three: assuming that the plotted color mean value near the boundary a is RGB (R0, G0, B0), the luminance is maximum if α=0 based on the obtained α, and the color is set to beWhen α=pi, then its color is set to +.>When α is greater than 0 and less than pi, its color is set as:
to this end, a plot image having a three-dimensional effect can be produced.
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