CN112037337A - Market three-dimensional digital emergency plan drilling system and method - Google Patents
Market three-dimensional digital emergency plan drilling system and method Download PDFInfo
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Abstract
The invention provides a three-dimensional digital emergency plan drilling system for a shopping mall, which comprises a scene building module, a facility data acquisition module, a plan making module, a dynamic deduction module and a plan output module, wherein the scene building module builds a 3D scene, a building and fire fighting equipment of the shopping mall and realizes step-by-step visualization; the facility data acquisition module acquires information of indoor and outdoor fire-fighting facilities; the plan making module simulates an event site in a three-dimensional scene to realize the rapid making of a three-dimensional digital plan; the dynamic deduction module automatically plays demonstration in an animation mode, so that a user can conveniently check the deduction process; the plan output module forms the three-dimensional digital plan made by the plan making module into a text plan with the image-text and the standard format. The invention also provides a three-dimensional digital emergency plan practicing method for the shopping mall. The invention has the advantages of realizing large-scale scene display and data integration, and providing powerful guarantee for all levels of firefighters to be familiar with key unit conditions, implement simulation drilling and effectively organize fire-fighting rescue.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a system and a method for three-dimensional digital emergency plan drilling in a shopping mall.
Background
Along with urban construction and economic society development, building structures and layouts of large-scale comprehensive markets are diversified, scaled, three-dimensional and complicated day by day, and in addition, "new problems", "small fire deaths, frequent small fire" and risks of severe disaster accidents, which are derived from new buildings, new materials, new energy, new technologies, new projects, population aging, building aging, traffic aging and the like, coexist, and higher requirements are put forward on fire rescue handling capacity, handling efficiency and handling methods.
Many foreign countries are actively developing the research of digital planning technology, and typically there are a digital emergency planning system in the coastal region of savana, an emergency response system in the oil and gas field in ohio, and an emergency planning and management system in the port of dalta, england.
Because the research on emergency management theory and technology in China starts late, the foundation of the emergency management application system is weak. Although China puts emergency platform construction into national science and technology development planning, currently, the emergency platform construction is still widely popularized and built, and no complete emergency service management system is established from the state to the local place, from the industry management department to all levels of production enterprises. Under the situation, due to the lack of various related resource data supports required by digital plan construction, a software and hardware system which is matched with business functions such as risk management, accident simulation, prediction early warning, decision support, material management and the like is required to construct a digital plan system, so that the additional cost for constructing the digital plan system is greatly increased, and the popularization and application progress of the current domestic digital plan technology is slow.
Therefore, there is a need in the art for a system and method that can effectively simulate the existing scene and perform data deduction in combination with the existing data.
Disclosure of Invention
The invention aims to provide a three-dimensional digital emergency plan practicing system for a shopping mall, which can solve the problem that the additional cost for constructing the conventional digital plan system is greatly increased.
The invention aims to provide a three-dimensional digital emergency plan practicing method for a shopping mall, which can solve the problems that the popularization and application progress of the existing domestic digital plan technology is slow, and the deduction process in the prior art is not real enough.
The invention provides a three-dimensional digital emergency plan practicing system for a shopping mall, which comprises the following components: a scene building module, a facility data acquisition module, a plan making module, a dynamic deduction module and a plan output module,
the scene building module is used for building 3D scenes, buildings and fire fighting equipment of a shopping mall by using three-dimensional modeling software and realizing step-by-step visualization by combining a three-dimensional engine technology on the basis of a 3D virtualization technology;
the facility data acquisition module is used for acquiring accurate positions, equipment types, equipment photos and video data of indoor and outdoor fire-fighting facilities, and information retrieval, viewing and positioning are carried out on the acquired information in a fuzzy query and classified query mode;
the plan making module is used for setting event details in the 3D electronic sand table, providing different task deployment templates and force dispatching rules according to unit types and disaster levels, simulating information such as event sites, trapped personnel and the like in a three-dimensional scene, setting combat tasks, placing combat vehicles and firemen in the scene according to combat requirements by setting visual angles, description and automatic dubbing explanation of the tasks, defining warning areas and duty areas, plotting evacuation, attack, patrol or rescue routes and marking rescue prompt information, and realizing the rapid making of three-dimensional digital plans;
the dynamic deduction module is used for automatically playing and demonstrating the evacuation, attack, patrol or rescue routes drawn by the preplan making module and the drawn marked rescue prompt information in an animation mode, so that a user can conveniently check the deduction process;
the plan output module is used for forming the three-dimensional digital plan manufactured by the plan manufacturing module into a text plan with the image-text and the standard format.
Preferably, the scene building module comprises a market park building module, an indoor structure building module and a building appearance building module,
the shopping mall park building module is used for independently building a peripheral park of the comprehensive shopping mall by using three-dimensional modeling software in a dragging mode, wherein the peripheral park comprises peripheral roads, the ground, a parking area, a lawn, trees or a gate;
the indoor structure building module is used for building an indoor structure of a building by using three-dimensional modeling software, and a builder drags lines or surfaces on a CAD base drawing to build the indoor structure by introducing an indoor structure building CAD drawing as a base drawing reference;
and the building appearance building module adopts 3DSMAX software to complete the three-dimensional model modeling of the building facade.
Preferably, the building appearance building module further comprises a basic data module, an appearance editing module and an appearance output module,
the basic data module is used for storing a CAD graph of the building appearance, building appearance materials acquired by processing scene information through picture processing software or an existing building appearance model;
the appearance editing module is used for enabling building appearance materials to be attached to the building appearance model in a map pasting mode, and enabling the built building three-dimensional appearance model to accord with a real scene through rendering or baking operation;
and the appearance output module is used for transmitting the building three-dimensional appearance model edited by the appearance editing module to other equipment.
Preferably, the plan making module comprises a disaster setting module and a plan editing module,
the disaster setting module is used for carrying out disaster grade division and setting according to disaster grades, disaster types, disaster positions, comburent information, disaster description information and trapped personnel information;
the plan editing module is used for drawing escape routes and rescue routes and marking rescue prompt information according to disaster grade division and set data of the disaster setting module, and the three-dimensional digital plan is rapidly manufactured.
Preferably, the dynamic deduction module comprises a plan display module, a display interface module, a material shadow module, a scene node management module, a rendering function module and a particle function module,
the plan display module adopts a three-dimensional display mode, adopts a step-by-step amplification entering mode in a three-dimensional visual management environment, and realizes operations of amplification, reduction, up-down, left-right translation and any angle rotation on a three-dimensional scene;
the display interface module supports multiple view ports of the camera, and controls the depression angle, the flying position and the zooming of the camera through a mouse ball;
the material shadow module supports spot light, direction light and floodlight, and controls basic parameters of the position, the intensity, the range and the color of light, and the light is used for being hung below a scene node to realize a motion effect;
the scene node management module supports scene link relation, scene hierarchical structure, scene node parent-child relation and scene node moving, rotating and zooming parent nodes to influence node transformation;
the rendering function module supports a solid display mode, a wire frame display mode, a point display mode, a sky box display mode or a sky ball display mode;
the particle function module is used for providing weather simulation, simulation of smoke or fire, and adjusting one or more of emissivity, emission quantity, particle size, particle map, particle color and life cycle parameters of the particle system.
Preferably, the dynamic deduction module handles massive geographical 3D data streaming and massive rendering in a 3D Tiles format, in 3D Tiles titeset is a set of Tiles organized in a spatial data structure (tree structure), each tile fully encapsulates its content in one bounding volume, the tree has spatial consistency, and the content of the child Tiles is fully in the parent bounding volume.
Preferably, the tree is a spatial data structure with spatial consistency, including a KD-tree, a quadtree or an octree.
The invention also provides a three-dimensional digital emergency plan practicing method for the shopping mall, which comprises the following steps:
setting up a scene: 3D scenes, buildings and fire fighting equipment of a shopping mall are built by using three-dimensional modeling software and realizing step-by-step visualization by combining a three-dimensional engine technology on the basis of a 3D virtualization technology, so that 3D scene building is completed;
acquiring facility data: acquiring facility data on the basis of the built 3D scene, acquiring accurate positions, equipment types, basic information, equipment photos and video data of indoor and outdoor fire-fighting, security and police facilities, acquiring general layer information by copying, and performing information retrieval, viewing and positioning on the acquired information in a fuzzy query and classified query mode;
preparing a plan: setting event details in a 3D electronic sand table, providing different task deployment templates and force dispatching rules according to unit types and disaster levels, simulating event sites, trapped personnel and other information in a three-dimensional scene, setting combat tasks, placing combat vehicles and firefighters in the scene according to combat requirements, setting attributes, defining alert areas and duty areas, plotting evacuation, attack, patrol or rescue routes and marking rescue prompt information by setting visual angles, descriptions and automatic dubbing explanation of each task, and realizing rapid production of three-dimensional digital preplan;
and (3) dynamic deduction: automatically playing and demonstrating evacuation, attack, patrol or rescue routes and labeled rescue prompt information which are prepared and drawn by a predetermined plan in an animation mode, so that a user can conveniently check a deduction process;
outputting a predetermined plan: and forming the three-dimensional digital plan manufactured in the plan manufacturing step into a text plan with the image-text having the standard format, and outputting the text plan to the on-site rescue workers for visual understanding.
Preferably, the slicing scheme in the dynamic deduction step uses a KD tree model, and includes the following steps:
selecting a dimension K with the maximum variance from a K-dimension data set, then selecting a median m on the dimension as a dividing point to divide the data set to obtain two subsets, and simultaneously creating a tree node for storage;
the process of steps above is repeated for both subsets until all subsets are no longer partitioned.
Preferably, six two-dimensional data points { (2, 3), (5, 4), (9, 6), (4, 7), (8, 1), (7, 2) } are selected to construct a KD tree, which comprises the following steps:
determining the split domain ═ x: calculating data variances of the six data points in x and y dimensions to be 39 and 28.63 respectively, and obtaining that the difference above an x axis is large, so that the split threshold value is determined to be x;
determine node-data ═ (7, 2): sorting the data according to the value in the x dimension, wherein the median value of the six data is 7, so that the node-data field bit data point is (7, 2), and the partition hyperplane of the node is a straight line x-7 which passes through (7, 2) and is perpendicular to the split-x axis;
determining a left subspace and a right subspace: dividing a hyperplane x ≦ 7 to divide the whole space into two parts, where the part x ≦ 7 is a left subspace including 3 nodes { (2, 3), (5, 4), (4, 7) }, and the other part is a right subspace including 2 nodes { (9, 6), (8, 1) };
because the KD tree is constructed in a recursive process, the process of repeating the root nodes on the data in the left subspace and the right subspace obtains primary child nodes (5, 4) and (9, 6), and the space and the data set are subdivided at the same time, and the process is repeated until the space only contains one data point, so that the KD tree is formed.
Compared with the prior art, the system and the method for three-dimensional digital emergency plan drilling in the market have the following beneficial effects:
1. by adopting the advanced computer technology, the real scene simulation technology, the virtual technology and the digital communication technology, the invention fully utilizes the three-dimensional modeling, image acquisition, information collection and simulation means, digitalizes and visualizes the real scene of a large-scale comprehensive market, realizes large-scale scene display and data integration, and provides powerful guarantee for each level of firefighters to be familiar with the conditions of key units, implement simulation exercise training and effectively organize fire-fighting rescue.
2. The invention strengthens the gathering, storage, analysis and application of basic information data of fire-fighting key units, constructs a fire-fighting rescue plan database, forms an information management platform integrating the functions of plan management, information sharing, data query, auxiliary operation and the like, realizes the data support of the work of basic information collection, key unit investigation and familiarity, fire-fighting rescue actual operation rehearsal, operation site on-line command, large-scale fire cooperative coordination and the like, and comprehensively builds training-type plans and actual-operation-type plans.
3. The three-dimensional visual scene of the fire-fighting key unit built by the fire-fighting officer is not a solidified and non-editable model, but can be automatically edited according to the change of the actual situation, so that the three-dimensional scene in the system is ensured to be consistent with the scene of the real world, and when a disaster occurs, the indoor and outdoor structures of the fire-fighting key unit are known to be highly consistent with the real world through the system, so that the fire-fighting deduction simulation can be performed highly effectively.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only used for explaining the concept of the present invention.
FIG. 1 is a schematic diagram of a three-dimensional digital emergency plan practicing system for a shopping mall according to the present invention;
FIG. 2 is a schematic diagram of a framework of the scene building module of the present invention;
FIG. 3 is a schematic diagram of a framework for a building facade building module according to the present invention;
FIG. 4 is a block diagram of a dynamic deduction module according to the present invention;
FIG. 5 is a block diagram of a protocol management function according to the present invention;
FIG. 6 is a schematic diagram of a three-dimensional digital emergency plan practicing method for a shopping mall according to the present invention;
fig. 7 is a schematic diagram of the KD-tree model in the dynamic deduction step of the present invention.
Summary of reference numerals:
1. scene building module 11 and market park building module
12. Indoor structure building module 13 and building appearance building module
131. Basic data module 132 and appearance editing module
133. Appearance output module 2 and facility data acquisition module
3. Plan making module 4 and dynamic deduction module
41. Plan display module 42 and display interface module
43. Material shadow module 44 and scene node management module
45. Rendering function module 46 and particle function module
5. Plan output module
Detailed Description
Hereinafter, an embodiment of a three-dimensional digital emergency plan practicing system and method for shopping malls according to the present invention will be described with reference to the accompanying drawings.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include any obvious replacement or modification of the embodiments described herein.
The drawings in the present specification are schematic diagrams, which are included to assist in explaining the concepts of the present invention and schematically show the interrelationship between the various parts.
As shown in fig. 1, the present invention provides a three-dimensional digital emergency plan practicing system for shopping malls, comprising: a scene building module 1, a facility data acquisition module 2, a plan making module 3, a dynamic deduction module 4 and a plan output module 5,
the scene building module 1 is used for building 3D scenes, buildings and fire fighting equipment of a shopping mall by using three-dimensional modeling software and realizing step-by-step visualization by combining a three-dimensional engine technology on the basis of a 3D virtualization technology; related buildings and various fire fighting equipment layouts in a fire fighting management range are mainly designed and configured, and 3D simulation scenes of various types of fire fighting are freely created;
the facility data acquisition module 2 is used for acquiring accurate positions, equipment types, equipment photos and video data of indoor and outdoor fire-fighting facilities, and the acquired information is subjected to information retrieval, viewing and positioning in a fuzzy query and classified query mode;
the preplan making module 3 is used for setting event details in the 3D electronic sand table, providing different task deployment templates and force dispatching rules according to unit types and disaster levels, simulating information such as event sites, trapped personnel and the like in a three-dimensional scene, setting combat tasks, placing combat vehicles and firemen in the scene according to combat requirements by setting visual angles, description and automatic dubbing explanation of the tasks, defining warning areas and duty areas, plotting evacuation, attack, patrol or rescue routes and marking rescue prompt information, and realizing the rapid making of three-dimensional digital preplans;
the dynamic deduction module 4 is used for automatically playing and demonstrating the evacuation, attack, patrol or rescue routes drawn by the preplan making module 3 and the drawn marked rescue prompt information in an animation mode, so that a user can conveniently check the deduction process;
and the plan output module 5 is used for forming the three-dimensional digital plan manufactured by the plan manufacturing module 3 into a text plan with the image-text and the standard format.
The method is suitable for the fire-fighting deduction simulation of the large-scale comprehensive market, the fire-fighting information of the large-scale comprehensive market is automatically labeled, and the rapid labeling and acquisition of the fire-fighting data are realized in a 3D scene. The facility data acquisition module 2 acquires information by dragging the model in the three-dimensional scene and filling in attribute information, supports entry of unit basic information and building information, and marks the positions of points of interest, fire fighting facilities, evacuation facilities, functional partitions, cautions and the like in the three-dimensional scene. The information labels comprise accurate positions of indoor and outdoor fire-fighting, security, police and other facilities, equipment types, basic information, photos, panoramic photos, video data and the like.
The plan making module 3 of the invention is provided with a model library, and the model fully covers the requirements of the application of the fire-fighting digital plan, including various general models and fire-fighting professional models of large-scale comprehensive markets.
The method is designed based on a 3D engine concept, namely the function of the 3D digital plan is independent of the establishment of a plan model, and the model is only a carrier of plan information and is not a main body of the plan function.
The invention provides low threshold scene construction capability by relying on advanced three-dimensional engine technology and efficient man-machine interaction design, and any ordinary person with basic computer operation capability can easily construct a real simulation scene in the digital world; and the system also has the capability of quickly building a scene, so that a modeling worker can quickly draw a floor wall structure through a mouse, quickly place the position of an object in the scene, and quickly build a three-dimensional scene of a large-scale comprehensive market by relying on an abundant 3D model library.
The system of the invention gives full play to the information advantages, and realizes auxiliary decision modules of fire extinguishing agent measurement and calculation, building information mapping, typical fire water consumption estimation, municipal administration network water supply capacity estimation, typical fire operational key point prompt and the like by constructing the three-dimensional scene and the surrounding environment of a fire-fighting key unit; meanwhile, according to the constructed three-dimensional scene, fire-fighting officers and soldiers perform simulation investigation and familiarity and commanders perform simulation command, and effectively guide fire-fighting rescue actions to be rapidly developed towards scientific disposal and data guarantee.
The system of the invention draws the idea of a game engine, has simple and convenient design of a three-dimensional scene building function, effectively reduces the drawing threshold of a plan, can also strengthen the dynamic display function, and vividly displays the fighting process of fire-fighting rescue; and according to the plan revision mechanism, the revision of the plan is automatically reminded, the revised plan can be audited, and the timeliness of the plan information is strengthened.
The plan output module 5 of the invention is integrated with the existing fire-fighting plan mobile terminal system, supplements the contents which can not be expressed by the three-dimensional monomer model information, such as a GIS distribution map of a water source in a certain range, whether dangerous chemicals exist in the position of an alarm, the fighting arrangement of cross-region rescue and the like, and ensures that the information required by rescue is complete, multi-faceted and real-time when a disaster occurs.
The three-dimensional digital emergency plan drilling system for the shopping mall not only can simply and conveniently build a three-dimensional scene, but also has strong data integration capability, such as space data provided by the three-dimensional scene, can integrate unstructured data, such as panoramic photos, videos, pictures obtained in real time in disaster relief sites and the like, and can integrate data information of other fire fighting systems. Moreover, the data information can be comprehensively displayed in a three-dimensional scene, and can also be shared to fire-fighting officers and soldiers participating in fire-fighting rescue in a disaster site through an information sharing function. The comprehensive guarantee of a 'data dual-channel' type is realized.
The method is simple and convenient to generate and update the 3D plan scene, and a plan maker can quickly finish the work of building and modifying the 3D scene through a visual interface such as dragging; the method can be adaptive to the adjustment of the configuration model of the external application management system, for example, if a certain object is added with N attributes, the N attributes of the corresponding 3D object in the 3D scene are also automatically added without adjusting a program; the scene construction operation functions are arranged according to a list and a right-click menu mode, the operation is simple and easy to use, if the model is placed by simply dragging, and the operation of the model attribute can be completed by the right-click; the invention can provide the two-dimensional/three-dimensional angle switching function when setting up a scene; the method supports the function of inputting and storing the service information of rooms, objects, roads and the like in each building in the plan 3D scene, and the key data supports key display of a top information board; the method can be used for randomly placing firemen, trapped masses, fire trucks, fires, explosion points and the like in the built scene, and can be used for configuring the attributes of the model (such as the water spraying angle of the fire truck, the size of a flame, the explosion range and the like); the invention supports the dynamic making function of the rescue route and the escape route, measures the distance between any two points or among multiple points in the system and displays the result; the invention supports the function of recording the animation in the system, and the user can define the route of the animation, the switching time and the playing speed among all nodes and support the self-editing of the subtitles.
In a further embodiment of the present invention, as shown in fig. 2, the scene building module 1 includes a mall park building module 11, an indoor structure building module 12, and a building appearance building module 13.
The shopping mall park building module 11 is used for independently building a peripheral park of a comprehensive shopping mall by using three-dimensional modeling software in a dragging mode, wherein the peripheral park refers to a park around a building appearance model, the peripheral park comprises peripheral roads, the ground, parking areas and a gate, and model building of the roads, the ground, the parking areas, the gate, a lawn, trees and the like is performed by using a system model library.
The indoor structure building module 12 is used for building an indoor structure by using three-dimensional modeling software, and building the indoor structure by drawing lines or surfaces on a CAD base drawing by leading in an indoor structure building CAD drawing as a base drawing reference; the system carries out building operation of the three-dimensional scene through the indoor structure building module 12, and the built indoor structure can be integrated with a corresponding appearance or an outer facade through the system and cannot be two independent individuals. In addition, the CAD drawing of the indoor structure is introduced into the system and used as a base drawing reference, a constructor only needs to pull a line wall or a rectangular wall on the CAD base drawing, so that a better constructing effect can be realized, the constructed indoor structure can be audited by a manager of the system, and after the audition is passed, plan making and other operations can be performed.
And the building appearance building module 13 adopts 3DSMAX software to complete the fine modeling of the three-dimensional model of the building facade. In the modeling process, the building is modeled strictly according to the actual size, lines, concave-convex and the like of the building by referring to the content of pictures, CAD drawings and the like acquired by the material, the material acquired by scene information is processed by using picture processing software, and the material is attached to the surface of the model in a map pasting mode, so that the facade model looks consistent with the model in the real world. After the model and the map are finished, operations such as rendering, baking and the like are carried out, so that the light, the shadow and the like of the model are more consistent with a real scene. The manufactured model is uploaded to the system through a proprietary plug-in provided by the system. The uploaded model can enter a model library in the system, and the model can be used in the system only after the audit of an administrator is passed.
In a further embodiment of the present invention, as shown in fig. 3, the building appearance building module 13 further includes a basic data module 131, an appearance editing module 132 and an appearance output module 133,
the basic data module 131 is used for storing a CAD graph of the building appearance, building appearance materials acquired by processing scene information through picture processing software or an existing building appearance model;
the appearance editing module 132 is used for attaching the building appearance material to the building appearance model in a map mode, and enabling the built building three-dimensional appearance model to conform to a real scene through rendering or baking operation;
the appearance output module 133 is configured to transmit the building three-dimensional stereoscopic appearance model edited by the appearance editing module 132 to other devices.
The system has data visualization, and realizes the data visualization by relying on a 3D scene consistent with the real world based on the technical idea of the 3D visualization. The user can browse specific and detailed information in a first person perspective, an immersive walking mode, a third person perspective and a flying bird's eye view mode.
Preferably, the plan making module 3 comprises a disaster setting module and a plan editing module,
the disaster setting module is used for carrying out disaster grade division and setting according to disaster grades, disaster types, disaster positions, comburent information, disaster description information and trapped personnel information;
the plan editing module is used for carrying out escape route drawing and rescue route drawing and labeling rescue prompt information according to disaster grade division and set data of the disaster setting module, and fast manufacturing of the three-dimensional digital plan is achieved.
In a further embodiment of the present invention, as shown in fig. 4, the dynamic deduction module 4 includes a plan presentation module 41, a presentation interface module 42, a material shadow module 43, a scene node management module 44, a rendering function module 45 and a particle function module 46, wherein,
the plan display module 41 adopts a three-dimensional display mode (a non-Flash mode and a 360-degree panoramic mode) and a step-by-step amplification entering mode in a three-dimensional visual management environment, and realizes operations such as amplification, reduction, up-down, left-right translation, arbitrary angle rotation and the like on a three-dimensional scene;
the display interface module 42 supports multiple view ports of the camera, and controls the depression angle, the flying position and the zooming of the camera through a mouse ball;
the material shadow module 43 supports spot light, directional light and flood light, and controls basic parameters such as the position, the intensity, the range and the color of light, and the light is used for being hung below a scene node to realize a motion effect;
the scene node management module 44 supports scene link relations, scene hierarchical structures, scene node parent-child relations, and moving, rotating and zooming parent nodes in a scene to influence node transformation;
the rendering function module 45 supports a physical display mode, a wire frame display mode, a point display mode, a sky box display mode or a sky ball display mode;
particle function block 46 is operable to provide weather simulation, simulation of smoke or fire, and to adjust one or more of the emissivity, number of emissions, particle size, particle map, particle color, and lifecycle parameters of the particle system.
The dynamic deduction module 4 processes a large amount of geographical 3D data streaming transmission and a large amount of rendering by adopting a 3D Tiles format, tileset in 3D Tiles is a tile set organized in a spatial data structure (tree structure), each tile completely encapsulates the content of the tile by an enclosure, the tree has spatial consistency, and the content of child Tiles is completely in a parent enclosure. Preferably, for flexibility, the tree is a spatial data structure with spatial consistency, including a KD-tree, a quadtree or an octree.
The system supports a multi-interface format, can integrate various fire-fighting and rescue related data (such as videos, audios, positioning, Internet of things and the like) based on scenes and models formed by a three-dimensional visualization technology, and is used for manufacturing a digital fire-fighting and rescue plan, battle command reference and the like.
The system also comprises a management platform module, a user authority management system is constructed by building a plan management platform, the auditing process of each level of plans is formulated, the grade-by-grade auditing of plan information is realized, the functions of basic data management such as system plan type configuration, rescue force and the like are supported, a management system is regularly updated and supervised in the whole process, and the actual effectiveness of information of fire-fighting key units, the normalization of plan contents and the scientificity of disposal strategies are practically ensured. The invention fully utilizes multimedia presentation forms such as a three-dimensional model, a panoramic image, a live-action photo, a monitoring video and the like, ensures that fire fighters can inquire required data clearly and visually and see unit scenes, can be used for conveniently and quickly familiarizing key units, quickly understanding the contents of plans such as battle deployment and the like, and enhances the convenience of using the plans.
As shown in fig. 5, the management platform module has a plan management function, and can visually display the distribution location and the plan state of the plan of the unit of emphasis on the basis of the map in the system. Different icon colors represent the planning conditions of the plan, such as green finished, grey unfinished, overdue red, yellow in audit and the like, so as to form a 'fire-fighting plan one picture' in the district.
As shown in fig. 6, the invention further provides a method for practicing three-dimensional digital emergency plans in shopping malls, which comprises the following steps:
scene construction S1: based on a 3D virtualization technology, a three-dimensional engine technology is combined, a 3D scene, a building and fire fighting equipment of a market are built by utilizing three-dimensional modeling software, and step-by-step visualization is realized, so that 3D scene building is completed. The scene building is used for fire fighters to independently build and modify the three-dimensional scene of the large-scale comprehensive market. The personnel of defending in this scene construction process can be according to the requirement of CAD drawing, photo and scheme independently, through the mode of pulling, the swift convenient three-dimensional scene of building large-scale comprehensive market, include: garden scenes such as enclosures, gates, roads, parking lots, landscaping, major signage, and the like; building an outer vertical face (including concave-convex and mapping effects) of a building or uploading an outer vertical face model to a system; and building indoor structures such as rooms, passageways, doors and windows and the like.
Facility data acquisition S2: the method comprises the steps of acquiring facility data on the basis of the built 3D scene, acquiring accurate positions, equipment types, basic information, equipment photos and video data of indoor and outdoor fire-fighting, security and police facilities, obtaining general layer information through copying, and retrieving, checking and positioning information of the acquired information in a fuzzy query and classified query mode. The facility data acquisition step is used for rapidly acquiring service data of fire fighting, security protection and the like by fire fighters in a 3D scene, can rapidly input unit basic information and building information, marks focus positions, fire fighting facilities, evacuation facilities, functional partitions, cautions and the like in a three-dimensional scene, and simultaneously supports uploading of accessory data such as pictures, panoramic pictures, audios and videos, documents and the like.
Preparation of a plan S3: setting event details in a 3D electronic sand table, providing different task deployment templates and force dispatching rules according to unit types and disaster levels, simulating event sites, trapped personnel and other information in a three-dimensional scene, setting combat tasks, placing combat vehicles and firefighters in the scene according to combat requirements, setting attributes, defining warning areas and duty areas, plotting evacuation, attack, patrol, rescue and other routes, and marking rescue prompt information to realize rapid production of three-dimensional digital preplan.
Dynamic deduction S4: and automatically playing and demonstrating evacuation, attack, patrol or rescue routes and labeled rescue prompt information which are prepared and drawn by the plan in an animation mode, so that a user can conveniently check the deduction process. The dynamic deduction step is used for automatically playing and checking the deployed three-dimensional electronic sand table by firemen in an animation mode, so that the deduction process can be conveniently checked, peripheral fire protection information query can be suspended at any time in the playing or deploying process, the functions of playback, fast forward and the like can be realized, data such as the general appearance around key units, the internal and external structures of buildings, 3D distribution of fire protection and security facilities and the like can be checked in a three-dimensional scene, the operations such as amplification/reduction, up-down, left-right translation, any angle rotation and the like of the 3D scene are realized, and the process supports various scene browsing modes such as a flying mode, a walking mode, a longitudinal sectional view and a perspective mode; two unfolding modes of transverse display and vertical unfolding are provided. The system supports joint deployment and deduction of multiple roles.
Plan output S5: and forming a text plan with pictures and texts in a standard format by the three-dimensional digital plan manufactured in the plan manufacturing step, and outputting the text plan to field rescuers for visual understanding. For example, the information can be directly distributed to workers or firefighters on site through downloading and printing, so that the fire-fighting deduction situation can be known in real time. The output text plan contains unit information, key part information, notice, dispatching strength information, deduction process and the like, and can be downloaded, printed and distributed to on-site rescue workers.
Preferably, the slicing scheme in the dynamic deduction step uses a KD tree model, comprising the steps of:
selecting a dimension K with the maximum variance from a K-dimension data set, then selecting a median m on the dimension as a dividing point to divide the data set to obtain two subsets, and simultaneously creating a tree node for storage;
the process of steps above is repeated for both subsets until all subsets are no longer partitioned.
Preferably, as shown in fig. 7, six two-dimensional data points { (2, 3), (5, 4), (9, 6), (4, 7), (8, 1), (7, 2) } are selected to construct a KD tree, which includes the following steps:
determining the split domain ═ x: calculating data variances of the six data points in x and y dimensions to be 39 and 28.63 respectively, and obtaining that the difference above an x axis is large, so that the split threshold value is determined to be x;
determine node-data ═ (7, 2): sorting the data according to the value in the x dimension, wherein the median value of the six data is 7, so that the node-data field bit data point is (7, 2), and the partition hyperplane of the node is a straight line x-7 which passes through (7, 2) and is perpendicular to the split-x axis;
determining a left subspace and a right subspace: dividing a hyperplane x ≦ 7 to divide the whole space into two parts, where the part x ≦ 7 is a left subspace including 3 nodes { (2, 3), (5, 4), (4, 7) }, and the other part is a right subspace including 2 nodes { (9, 6), (8, 1) };
because the KD tree is constructed in a recursive process, the process of repeating the root nodes on the data in the left subspace and the right subspace obtains primary child nodes (5, 4) and (9, 6), and the space and the data set are subdivided at the same time, and the process is repeated until the space only contains one data point, so that the KD tree is formed.
Meanwhile, after the space shown above is divided, it can be seen that the point (7, 2) may be a root node, and the two thick red oblique lines starting from the root node point to (5, 4) and (9, 6) are left and right child nodes of the root node, while (2, 3), (4, 7) are left and right children of (5, 4) (connected by two thin red oblique lines), and finally, (8, 1) is left child of (9, 6) (connected by thin red oblique lines). Thus, a KD tree is formed.
The system and method for three-dimensional digital emergency plan practice in shopping malls of the present invention are explained above. Moreover, the technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the present invention, so as to achieve the purpose of the present invention.
Claims (10)
1. The utility model provides a three-dimensional emergent plan rehearsal system of digital emergency in market which characterized in that includes: a scene building module, a facility data acquisition module, a plan making module, a dynamic deduction module and a plan output module,
the scene building module is used for building 3D scenes, buildings and fire fighting equipment of a shopping mall by using three-dimensional modeling software and realizing step-by-step visualization by combining a three-dimensional engine technology on the basis of a 3D virtualization technology;
the facility data acquisition module is used for acquiring accurate positions, equipment types, equipment photos and video data of indoor and outdoor fire-fighting facilities, and information retrieval, viewing and positioning are carried out on the acquired information in a fuzzy query and classified query mode;
the plan making module is used for setting event details in the 3D electronic sand table, providing different task deployment templates and force dispatching rules according to unit types and disaster levels, simulating information such as event sites, trapped personnel and the like in a three-dimensional scene, setting combat tasks, placing combat vehicles and firemen in the scene according to combat requirements by setting visual angles, description and automatic dubbing explanation of the tasks, defining warning areas and duty areas, plotting evacuation, attack, patrol or rescue routes and marking rescue prompt information, and realizing the rapid making of three-dimensional digital plans;
the dynamic deduction module is used for automatically playing and demonstrating the evacuation, attack, patrol or rescue routes drawn by the preplan making module and the drawn marked rescue prompt information in an animation mode, so that a user can conveniently check the deduction process;
the plan output module is used for forming the three-dimensional digital plan manufactured by the plan manufacturing module into a text plan with the image-text and the standard format.
2. The three-dimensional digital emergency plan practicing system of market as claimed in claim 1, wherein the scene building module comprises a market park building module, an indoor structure building module and a building appearance building module,
the shopping mall park building module is used for independently building a peripheral park of the comprehensive shopping mall by using three-dimensional modeling software in a dragging mode, wherein the peripheral park comprises peripheral roads, the ground, a parking area, a lawn, trees or a gate;
the indoor structure building module is used for building an indoor structure of a building by using three-dimensional modeling software, and a builder drags lines or surfaces on a CAD base drawing to build the indoor structure by introducing an indoor structure building CAD drawing as a base drawing reference;
and the building appearance building module adopts 3DSMAX software to complete the three-dimensional model modeling of the building facade.
3. The three-dimensional digital emergency plan practicing system for shopping malls according to claim 2, wherein the building appearance constructing module further comprises a basic data module, an appearance editing module and an appearance output module,
the basic data module is used for storing a CAD graph of the building appearance, building appearance materials acquired by processing scene information through picture processing software or an existing building appearance model;
the appearance editing module is used for enabling building appearance materials to be attached to the building appearance model in a map pasting mode, and enabling the built building three-dimensional appearance model to accord with a real scene through rendering or baking operation;
and the appearance output module is used for transmitting the building three-dimensional appearance model edited by the appearance editing module to other equipment.
4. The three-dimensional digital emergency plan practicing system for shopping malls according to claim 1, wherein the plan making module comprises a disaster setting module and a plan editing module,
the disaster setting module is used for carrying out disaster grade division and setting according to disaster grades, disaster types, disaster positions, comburent information, disaster description information and trapped personnel information;
the plan editing module is used for drawing escape routes and rescue routes and marking rescue prompt information according to disaster grade division and set data of the disaster setting module, and the three-dimensional digital plan is rapidly manufactured.
5. The three-dimensional digital emergency plan practicing system for shopping malls of claim 1, wherein the dynamic deduction module comprises a plan display module, a display interface module, a material shadow module, a scene node management module, a rendering function module and a particle function module,
the plan display module adopts a three-dimensional display mode, adopts a step-by-step amplification entering mode in a three-dimensional visual management environment, and realizes operations of amplification, reduction, up-down, left-right translation and any angle rotation on a three-dimensional scene;
the display interface module supports multiple view ports of the camera, and controls the depression angle, the flying position and the zooming of the camera through a mouse ball;
the material shadow module supports spot light, direction light and floodlight, and controls basic parameters of the position, the intensity, the range and the color of light, and the light is used for being hung below a scene node to realize a motion effect;
the scene node management module supports scene link relation, scene hierarchical structure, scene node parent-child relation and scene node moving, rotating and zooming parent nodes to influence node transformation;
the rendering function module supports a solid display mode, a wire frame display mode, a point display mode, a sky box display mode or a sky ball display mode;
the particle function module is used for providing weather simulation, simulation of smoke or fire, and adjusting one or more of emissivity, emission quantity, particle size, particle map, particle color and life cycle parameters of the particle system.
6. The mall three-dimensional digital emergency plan rehearsal system according to claim 1, wherein the dynamic deduction module handles massive geographic 3D data streaming and massive rendering in 3D Tiles format, in 3D Tiles tile sets are Tiles organized in a spatial data structure (tree structure), each tile completely encapsulates its content in an enclosure, the tree has spatial consistency, and the content of child Tiles is completely in a parent enclosure.
7. The mall three-dimensional digital emergency plan drill system according to claim 6, wherein the tree is a spatial data structure with spatial consistency, comprising a KD-tree, a quad-tree or an octree.
8. A three-dimensional digital emergency plan practicing method for a shopping mall is characterized by comprising the following steps:
setting up a scene: 3D scenes, buildings and fire fighting equipment of a shopping mall are built by using three-dimensional modeling software and realizing step-by-step visualization by combining a three-dimensional engine technology on the basis of a 3D virtualization technology, so that 3D scene building is completed;
acquiring facility data: acquiring facility data on the basis of the built 3D scene, acquiring accurate positions, equipment types, basic information, equipment photos and video data of indoor and outdoor fire-fighting, security and police facilities, acquiring general layer information by copying, and performing information retrieval, viewing and positioning on the acquired information in a fuzzy query and classified query mode;
preparing a plan: setting event details in a 3D electronic sand table, providing different task deployment templates and force dispatching rules according to unit types and disaster levels, simulating event sites, trapped personnel and other information in a three-dimensional scene, setting combat tasks, placing combat vehicles and firefighters in the scene according to combat requirements, setting attributes, defining alert areas and duty areas, plotting evacuation, attack, patrol or rescue routes and marking rescue prompt information by setting visual angles, descriptions and automatic dubbing explanation of each task, and realizing rapid production of three-dimensional digital preplan;
and (3) dynamic deduction: automatically playing and demonstrating evacuation, attack, patrol or rescue routes and labeled rescue prompt information which are prepared and drawn by a predetermined plan in an animation mode, so that a user can conveniently check a deduction process;
outputting a predetermined plan: and forming the three-dimensional digital plan manufactured in the plan manufacturing step into a text plan with the image-text having the standard format, and outputting the text plan to the on-site rescue workers for visual understanding.
9. The method of claim 8, wherein the slicing scheme in the step of dynamically deriving uses a KD tree model, comprising the steps of:
selecting a dimension K with the maximum variance from a K-dimension data set, then selecting a median m on the dimension as a dividing point to divide the data set to obtain two subsets, and simultaneously creating a tree node for storage;
the process of steps above is repeated for both subsets until all subsets are no longer partitioned.
10. The method of claim 9, wherein six two-dimensional data points { (2, 3), (5, 4), (9, 6), (4, 7), (8, 1), (7, 2) } are selected to construct the KD tree, the steps are as follows:
determining the split domain ═ x: calculating data variances of the six data points in x and y dimensions to be 39 and 28.63 respectively, and obtaining that the difference above an x axis is large, so that the split threshold value is determined to be x;
determine node-data ═ (7, 2): sorting the data according to the value in the x dimension, wherein the median value of the six data is 7, so that the node-data field bit data point is (7, 2), and the partition hyperplane of the node is a straight line x-7 which passes through (7, 2) and is perpendicular to the split-x axis;
determining a left subspace and a right subspace: dividing a hyperplane x ≦ 7 to divide the whole space into two parts, where the part x ≦ 7 is a left subspace including 3 nodes { (2, 3), (5, 4), (4, 7) }, and the other part is a right subspace including 2 nodes { (9, 6), (8, 1) };
because the KD tree is constructed in a recursive process, the process of repeating the root nodes on the data in the left subspace and the right subspace obtains primary child nodes (5, 4) and (9, 6), and the space and the data set are subdivided at the same time, and the process is repeated until the space only contains one data point, so that the KD tree is formed.
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