CN113990169A - Distributed virtual simulation earthquake emergency drilling system - Google Patents
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Abstract
The invention discloses a distributed virtual simulation seismic application drilling system, which comprises: the system comprises a seismic environment resource database, an immersion display and interaction subsystem, an escape plan generation subsystem, a modeling and simulation subsystem, a three-dimensional visual scene real-time rendering subsystem, a virtual drilling evaluation subsystem, a virtual drilling recording and playback subsystem and a communication subsystem. The distributed interactive simulation technology and the virtual environment modeling method are used in the earthquake emergency drilling technology, the HLA high-level system frame structure is used as the standard followed by the distributed interactive simulation, necessary equipment and objects in the virtual environment are subjected to interactive technical development on the earthquake disaster scene simulation and earthquake emergency drilling virtual simulation drilling technology, and experience of immersion in the same real environment are generated, so that the on-site feeling of a trainee is enhanced, and the quick response and emergency handling capacity of earthquake emergency managers are improved.
Description
Technical Field
The invention belongs to the technical field of emergency training, and particularly relates to a distributed virtual simulation earthquake emergency drilling system.
Background
The earthquake is a sudden natural disaster with great destructiveness, a virtual earthquake disaster site environment close to reality is created by utilizing the prior art of computer simulation reality and a simulation modeling method and a reproduction technology of an earthquake disaster process, and a foundation is laid for the research of an earthquake disaster scene plan editor and a three-dimensional visual scene real-time rendering subsystem in an earthquake emergency rescue disposal drilling platform. However, the emergency drilling system in the prior art still mainly performs actual combat simulation drilling, and due to the complexity of the earthquake field, the simulated disaster scene area has certain limitations, and the large amount of operation for drawing the simulated disaster field cannot meet the requirement of real-time simulation drilling. Furthermore, since distributed technology is not used, the requirement of interoperability for simulation applications proposed by simulation to achieve seamless linking between different types of simulation applications cannot be satisfied, such as integrating real-time continuous system simulation based on equal time step, and actual C4I system into one integrated environment of distributed interaction. The simulation can not be organically combined with the virtual reality equipment, the mutual coupling in time and space can not be formed, and the participants can freely interact with the environment to complete the drill target. At present, no mature application system exists, advanced three-dimensional visualization and virtual simulation technologies and computer networks can be utilized to connect software and hardware devices scattered in different places with related personnel, and a virtual rescue drill for performing collaborative rescue in time and space is formed in a artificially synthesized disaster-stricken environment.
Disclosure of Invention
The invention aims to provide a distributed virtual simulation earthquake application drilling system, which is used for applying a distributed interactive simulation technology and a virtual environment modeling method to an earthquake emergency drilling technology, takes HLA (high-level architecture) as a specification followed by the distributed interactive simulation, carries out interactive technical development on necessary equipment and objects in a virtual environment for the earthquake disaster scene simulation and earthquake emergency drilling virtual simulation drilling technology, and generates feeling and experience of immersing in the equivalent real environment, thereby enhancing the on-site feeling of a trainee and promoting the quick response and emergency disposal capability of earthquake emergency managers.
The invention provides a distributed virtual simulation earthquake emergency drilling system, which comprises:
the system comprises a seismic environment resource database, an immersion display and interaction subsystem, an escape plan generation subsystem, a modeling and simulation subsystem, a three-dimensional visual scene real-time rendering subsystem, a virtual drilling evaluation subsystem, a virtual drilling recording and playback subsystem and a communication subsystem.
Preferably, the system selects high-level architecture HLA as a simulation technology framework of the distributed system, and uses a core part RTI in HLA as a support environment for simulation operation of the distributed system.
Preferably, the seismic environment resource database includes:
(1) seismology theory knowledge base: the method covers basic concepts such as basic geophysical knowledge, a seismic source, a seismic center, a seismic level, a coverage area and a damage range, various theoretical knowledge relevant to seismology such as level assessment and the like, and can selectively call and read the knowledge content relevant to learning according to needs in the drilling process, and the display mode and means comprise the following steps: text, picture, video, 3D modeling and virtual simulation;
(2) earthquake rescue method knowledge base: the method covers various theoretical methods related to earthquake rescue and successful experience introduction analysis of historical cases, and a driller can selectively read and learn related knowledge contents as required, and the display modes and means comprise: text, picture, video, 3D modeling and virtual simulation;
(3) the escape method knowledge base comprises the following steps: the method and theoretical knowledge of the invention for escaping from earthquake and the successful escape case analysis in the historical case are covered, the driller can selectively read and learn the related knowledge content according to the requirement, and the display mode and means comprise: text, picture, video, 3D modeling and virtual simulation;
(4) rescue tool library: various emergency rescue tools constructed through 3D modeling are built in the system, such as rescue facilities of vehicles, tents, crowbars, jacks, cranes, lift trucks, unmanned aerial vehicles and the like, a user can open a required 'rescue tool model' from a tool box in real time as required in the teaching and simulation training process, and each 'three-dimensional tool' is matched with corresponding text introduction and related data; also including picture, location and video presentation of rescue tools for various scenes;
(5) historical typical case library: a plurality of typical earthquake cases are arranged in the system for a driller to call, study and refer, such as the Sakashen earthquake, the Tang mountain earthquake, the Wenchuan earthquake and the like, each case is provided with abundant historical images and text introduction, and the contents relate to the basic causes, the damage degree, the earthquake source, the earthquake center, the earthquake magnitude, the coverage range, the damage range, the casualties and the experience teaching case analysis of the escape and emergency rescue process of the earthquake.
Preferably, the escape plan generating subsystem performs concept plan modeling by taking the same concept description library in related fields as a background and combining natural environment data from virtual emergency drilling; then the concept plan model is mapped to a simulation plan model which can be operated through an earthquake disaster plan editor in combination with entity model data, and finally simulation operation is carried out to obtain a simulation result; the escape plan generating subsystem is used as a question generating system of the whole system, emergency public safety events under various conditions and various conditions are generated through plan editing, the scene of exercise is generated, a simulation modeling method of the emergency public events is adopted, emergency command processing mechanisms aiming at different public safety events are exercised on a platform through the exercise public safety event plans, the emergency command processing mechanisms comprise rescue resource allocation, users can allocate and schedule emergency rescue resources and facilities, the positions, the quantities, the scheduling and the allocation of rescue facilities such as rescue workers, rescue vehicles, engineering vehicle curtains, emergency vehicles, medical care personnel, tent bedding and the like are edited at specific places, specific quantities (different symbols, different color names and the like are used), the users can allocate the rescue resources and facilities with different quantities to different rescue places and rescue teams, and appropriate rescue route information is pushed, The resource configuration information or the rescue scheme information provides feasible data, resources and technical support for rescue workers, various edited and set emergency rescue data can be stored into one or more fixed configuration files, one or more rescue scheme files are finally formed by combining the current three-dimensional scene, visual environment and technical support are provided for teaching tests, rescue drilling and simulation training, and users can open simulation scenes and configurations in real time to perform drilling contents such as escape, emergency management, rescue teaching training and the like.
Preferably, the immersion display and interaction subsystem directly interacts with the trainee and collects the interaction action from the trainee in real time, and the interaction information is transmitted to the three-dimensional visual real-time rendering subsystem.
Preferably, the three-dimensional view real-time rendering subsystem comprises simulation of the expressions of the entities such as the terrain, the landform, the building, the vehicle and the like around the emergency safety event and the disaster process; and according to the user instruction, the real-time scene roaming.
Preferably, the modeling and simulation subsystem is used for generating various models required by the system and running the models in real time, the running result of the models is submitted to the three-dimensional visual real-time rendering subsystem in real time, the interactive result of the user is fed back to the modeling and simulation subsystem, and the modeling and simulation subsystem obtains a new model running result according to the interaction of the user and then submits the new model running result to the three-dimensional visual real-time rendering subsystem in real time.
Preferably, the virtual drilling recording and playback subsystem establishes a temporal connection, stores and organizes the recorded video of the running states of the scenes and the evaluation of the experts according to a temporal sequence, reads the records during playback, and displays the running states of the scenes and the evaluation of the experts according to the temporal sequence; the virtual drilling recording and playback subsystem is closely combined with the drilling resource management subsystem, logs obtained by the recording module are stored by the drilling resource management subsystem, and required records are retrieved and read out and are used for playing back video or outputting expert comments.
Preferably, the virtual drilling evaluation subsystem is used for evaluating the emergency drilling effect, before drilling evaluation, an index system for drilling evaluation needs to be established, and the selection of the evaluation index is guided by the system task requirement.
Preferably, the communication subsystem is a gigabit ethernet.
The design method of the distributed virtual simulation earthquake emergency drilling system comprises the following steps:
1. the plan loading and operation control process comprises the following steps:
(1) logging in: the user inputs a user name and a password, only the user with the administrator authority can log in the escape plan generation subsystem, and the user creation and the authority setting are set by the user management system.
(2) And (5) searching a plan. The user logs in the system, and after the related initialization operation is carried out, the plan file and the flow control file in the database can be searched. The plan file is edited in the plan editing system, and the user can view the name, author, establishing time, plan description, exercise task requirement, history exercise record and other information of the plan. The flow control file is a file for controlling the entire drilling flow generated according to the demonstration script.
(3) And loading the plan. After the user selects the plan file and the flow control file, the plan loading and operation control system reads the plan data, initializes the object to be generated by each federal member according to the content of the plan data, and complains the woman ason flow control command to other federal members according to the content of the flow control file, so that the whole simulation system is promoted according to the drilling script.
(4) And (5) operation control. During the process that the system advances according to the flow, the user can perform dynamic control on the system, such as adding an emergency, adding a model to a scene, and the like.
(5) And (5) exiting the system. When the drill is finished or the drill needs to be finished for other reasons, the commander can choose to quit and finish the whole drill.
2. Starting a three-dimensional visual real-time rendering subsystem, receiving the plan file information from the plan generating subsystem, and establishing a local rendering object; and then, the three-dimensional visual real-time rendering subsystem receives an action instruction about a person from the virtual person control member VH and performs simulation according to the instruction information content, and in the process, the three-dimensional visual real-time rendering subsystem simulates and displays the earthquake emergency rescue process in a multimedia expression form of animation, image, sound and picture. In this embodiment, the three-dimensional view real-time rendering subsystem is an independent subsystem, operates when the virtual simulation drilling begins, registers in the system after a series of scene initialization operations, enters a graphic display cycle, receives messages to represent the action and position information of each virtual person, and feeds back the system scene filling and virtual person information in real time, and includes a commander control module and a virtual person control module.
3. Performing kinetic calculations: the method comprises the steps of simulating physical interaction of debris in the ruins and human parts by adopting a physical engine, and simulating mechanical performances including collision detection and rigid body dynamics after collision occurs among objects and between the objects and scenes.
4. And data communication among the director group, the drill group and the evaluation group is carried out by adopting a communication interface. The communication interface adopts a winlock interface, uses a TCP protocol to carry out communication, and the message (packet) types approximately comprise a login packet, a login reply packet, a drilling control packet, an event injection packet, an event sending packet and a decision submission packet.
The distributed virtual simulation earthquake emergency drilling system provided by the invention has the following beneficial effects:
the system combines computer technology with actual drilling and professional application, solves various problems faced by actual earthquake rescue drilling by information technology, network technology, multimedia technology, virtual reality technology, simulation technology, man-machine interaction technology, three-dimensional modeling and visualization technology, removes the restriction of objective factors on drilling implementation, improves drilling effect and enhances rescue ability; combining a virtual reality technology with real earthquake data, simulating a real earthquake scene by using an advanced virtual reality technology, simulating special effects of sound, light, smoke, rain, snow, fog, fire and the like with vivid performance on a real topographic map and instrument simulation, and jointly constructing a dynamic, intuitive and vivid virtual drilling environment; the high-rise architecture HLA is combined with the cooperative rescue of each department, and the interoperability, scalability, instantaneity and cooperativity of rescue drilling of each department are promoted by a hierarchical framework of an HLA earthquake rescue simulation system; the real earthquake disaster modeling and the real three-dimensional large terrain rendering and management technology are combined, the damage of the earthquake to the surface terrain is simulated, and the image of the real-time terrain to the driving motion of the rescue vehicle is simulated; the distributed virtual simulation earthquake emergency drilling system realizes a man-machine interaction mode taking natural language as a main mode and mouse and keyboard input as an auxiliary mode, takes three-dimensional images and environmental sound as an outlet, takes a vision and an auditory sense as themes, has rich senses, and is similar to actual drilling.
Drawings
Fig. 1 is a schematic diagram of the general structure of a distributed virtual simulation earthquake emergency drilling system provided by the invention.
FIG. 2 is a schematic diagram of the structure of important functional modules of the distributed virtual simulation earthquake emergency drilling system provided by the invention.
Fig. 3 is a schematic structural diagram of an embodiment of an electronic device provided in the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The embodiment provides a distributed virtual simulation seismic application drilling system, which is used for a distributed interactive simulation technology and a virtual environment modeling method in a seismic emergency drilling technology, and adopts HLA (high level architecture) as a specification followed by the distributed interactive simulation to carry out necessary equipment and interactive technical development of objects in a virtual environment on the seismic disaster scene simulation and seismic emergency drilling virtual simulation drilling technology, so as to generate experience and experience of immersing in an equivalent real environment, thereby enhancing the on-site feeling of a trainee and promoting the quick response and emergency handling capability of seismic emergency managers.
A distributed virtual simulation earthquake emergency drilling system uses VR-Platform virtual reality technology to create a virtual earthquake field environment close to reality through background generation and image synthesis, and has the following requirements and aims:
(1) the requirement of plan exercise: in normal times, training in earthquake emergency plans is lacked, and scientific emergency decisions are difficult to make quickly after an earthquake occurs.
(2) Critical functional requirements. Information injection system requirements: for background drilling plans and operators, information such as a drilling script, a disaster scene, a secondary disaster, disposal resources and the like which are well programmed are combined with a three-dimensional platform and a deduction platform to generate a simulation environment and information events in the training process. The emergency resource materials need to be modeled according to the classification and the catalogue of the actual disposal requirement, and three-dimensional objects needing to be called are adjusted according to the drilling requirement, so that a simulation effect is formed in a scene. Meanwhile, various scene events, such as triggering events of explosion, fire, smoke, building damage and the like can be added, and the presence is further enhanced. Drilling script injection: calling a drilling script description file preset by the system and accessories corresponding to the drilling script, and injecting script three-dimensional data (including three-dimensional scenes of terrain, climate, humanity and other related conditions and emergency scenes) and script text data (contents of personnel organization, drilling process, role assignment, associated plans and the like) into the system by a director group member through a script injection system in a manual, automatic or timing injection mode to provide drilling episodes for trainees. Disaster scene injection: the method is characterized in that the method is operated by a director group member, on the basis of an original script, a disaster scene is selected from a system scene library through the script and is injected immediately, the injected disaster scene can take effect immediately, and disaster scene display is provided for users participating in training. Secondary disaster injection: and the director group member operates, when the user enters a scene, the system automatically displays related secondary disasters according to the drilling sequence of script injection, and the director group member injects the secondary disasters caused by the earthquake according to the drilling requirement. And (3) treating resource injection: the system provides injection functionality that trains treatment-related resources required by the treatment process. Including specific objects for disaster relief personnel interaction that can assume different states after being subjected to disasters of different magnitudes and that can interact with other objects or characters. And importing data of goods facilities, personnel and equipment and the like into corresponding positions in the scene according to the handling requirements for event handling.
The interaction handles system requirements. For foreground trainees, the interactive treatment system is a main application system, according to the design of scripts, each simulation scene provides interactive processes such as resource scheduling, event state control, investigation and research, strategy formulation, comprehensive coordination, social mobilization, media response and the like, the trainees can automatically record information of interactive treatment through the simulated interactive treatment of all links and the learning emergency management process, and the system is used for learning effect evaluation.
And (5) evaluating the functional requirements by experts. According to partial information and relevant models recorded in the drilling training process, the experts comprehensively comment and analyze the whole drilling process, and comprehensively score the emergency handling capacity of students. And (3) inquiring the drilling process: any exercise record can be searched in the record library through a simple query or a complex query mode. The history exercise record can be played back to reproduce the exercise situation at that time. And (3) performing drill process playback: the system reads the recorded information and plays back the whole course of the trainee to accept the exercise. Definition of evaluation index: and defining the answer evaluation criteria submitted by single-choice, multi-choice and virtual scene interaction modes in the college interaction disposal process. And (3) expert comment analysis: and the expert reviews the supervisor decision-making actions of the user according to the original data of all aspects of the drill in the evaluation index library, summarizes the reviewed result and the result automatically generated by the system into a review score and records the review score in a student score sheet.
Example one
Referring to fig. 1-2, the present embodiment provides a distributed virtual simulation earthquake emergency drilling system, including:
the system comprises a seismic environment resource database, an immersion display and interaction subsystem, an escape plan generation subsystem, a modeling and simulation subsystem, a three-dimensional visual scene real-time rendering subsystem, a virtual drilling evaluation subsystem, a virtual drilling recording and playback subsystem and a communication subsystem.
Furthermore, in consideration of reusability and expandability of a three-dimensional virtual simulation drilling scene, a high-Level architecture (HLA) is selected as a simulation technical framework of the system, and a core component RTI (Run-Time Infrastructure) in the HLA is used as a support environment for simulation operation of the system.
The description is in terms of the functionality of the system:
the seismic environment resource database includes:
(1) seismology theory knowledge base: basic concepts such as geophysical basic knowledge, seismic source, epicenter, magnitude of earthquake, coverage range and damage range are covered, and various theoretical knowledge such as grade assessment and the like related to seismology is covered. The learning related knowledge content can be selectively retrieved according to needs in the drilling process, and the display mode and means comprise: text, picture, video, 3D modeling and virtual simulation;
(2) earthquake rescue method knowledge base: various theoretical methods and successful experience introduction analysis of historical cases in earthquake rescue are covered. The driller can selectively read the knowledge content related to learning according to the requirement, and the display mode and means comprise: text, picture, video, 3D modeling and virtual simulation;
(3) the escape method knowledge base comprises the following steps: various methods and theoretical knowledge about the invention of earthquake escape and successful escape case analysis in historical cases are covered. The driller can selectively read the knowledge content related to learning according to the requirement, and the display mode and means comprise: text, picture, video, 3D modeling and virtual simulation;
(4) rescue tool library: various emergency rescue tools constructed through 3D modeling are built in the system, such as rescue facilities of vehicles, tents, crowbars, jacks, cranes, lift trucks, unmanned planes and the like. In the teaching and simulation training process, a user can open a needed rescue tool model from a tool box in real time according to needs, and each three-dimensional tool is matched with corresponding text introduction and related data; also including picture, location and video presentation of rescue tools for various scenes;
(5) historical typical case library: a plurality of typical earthquake cases are built in the system for the searching, learning and reference of the trainers. Such as the great earthquake of the sakazah, the great earthquake of the tang shan, the great earthquake of the wenchuan and the like, each case is provided with rich historical images and text introduction, and the content relates to the basic cause, the damage degree, the earthquake source, the earthquake center, the earthquake magnitude, the coverage, the damage range, the casualties and the experience teaching case analysis of the escape and emergency rescue process of the earthquake.
An escape plan generation subsystem: starting from virtual emergency drilling, carrying out concept plan modeling by taking the same concept description library in related fields as a background and combining natural environment data; then the concept plan model is mapped to a simulation plan model which can be operated through an earthquake disaster plan editor in combination with entity model data, and finally simulation operation is carried out to obtain a simulation result; the escape plan generating subsystem is used as a question system of the whole system, emergency public safety events under various conditions and various conditions are generated through plan editing, the scene of drilling is generated, a simulation modeling method of the emergency public events is adopted, emergency command processing mechanisms aiming at different public safety events are drilled on a platform through the trained public safety event plans, the emergency command processing mechanisms comprise rescue resource allocation, users can configure and schedule emergency rescue resources and facilities, such as the positions, the quantities, the scheduling and the distribution of rescue facilities of rescue personnel, rescue vehicles, engineering vehicle curtains, emergency vehicles, medical care personnel, tent bedding and the like, and specific quantities (different symbols, color names and the like are used) are edited at specific places. The user can configure rescue resources and facilities with different quantities to different rescue places and rescue team members, and push proper rescue route information, resource configuration information or rescue scheme information and the like, so that feasible data, resources and technical support are provided for the rescue workers. Various types of edited and set emergency rescue data can be stored in one or more fixed configuration files, one or more rescue scheme files are finally formed by combining the current three-dimensional scene, visual environment and technical support are provided for teaching tests, rescue drilling and simulation training, and users can open simulation scenes and configure drilling contents such as escape, emergency management, rescue teaching training and the like in real time.
The immersive display and interaction subsystem: the system directly interacts with the trainee and collects the interactive action from the trainee in real time, and the interactive information is transmitted to the three-dimensional visual real-time rendering subsystem.
The three-dimensional visual real-time rendering subsystem: the fidelity of the scene of the emergency and the surrounding environment is one of the determining factors for determining the simulation exercise effect. However, the regions where the emergency safety events occur are generally the regions where the human landscape is most concentrated, so that the well-ordered human landscape is completely invisible, which is called as an unnecessary chaotic scene, damages the scene and is complicated, the scene is complicated and various, and the structure is complicated. The subsystem includes simulation of the appearance of the terrain, buildings, vehicles, etc. around the emergency safety event and the disaster process. And according to a user instruction, real-time scene roaming and the like.
The modeling and simulation subsystem: the system is used for generating various models required by the system and running the models in real time, the running result of the models is submitted to the three-dimensional visual real-time rendering subsystem in real time, the interactive result of the user is fed back to the modeling and simulation subsystem, and the modeling and simulation subsystem obtains a new model running result according to the interaction of the user and then submits the new model running result to the three-dimensional visual real-time rendering subsystem in real time.
Virtual drill recording and playback subsystem: and establishing a temporal connection, storing and organizing the recorded scene running state videos and the expert evaluations according to a temporal sequence in the virtual drilling process, reading the records during playback, and displaying the scene running states and the expert evaluations according to the temporal sequence. The virtual drilling recording and playback subsystem needs to be tightly combined with the drilling resource management subsystem, the drilling resource management subsystem is used for storing the logs obtained by the recording module, and searching and reading the required records for playing back the video or outputting expert comments.
The virtual drill evaluation subsystem: the evaluation of the effect of emergency drilling is mainly completed. Before performing evaluation, an index system for performing evaluation needs to be established. The establishment of the evaluation index system follows the principles of testability, completeness, independence, objectivity, consistency and understandability. The selection of the evaluation indexes is dragged by the task requirements of the system, and the indexes reflecting the essential characteristics of the emergency safety events are mainly considered when the evaluation indexes of the emergency safety events are determined.
The communication subsystem is a gigabit high-speed Ethernet.
The system can be implemented by the emergency drilling design method provided in the second embodiment, and specific implementation methods can be referred to the description in the second embodiment and are not described herein again.
Example two
The embodiment provides a design method of a distributed virtual simulation earthquake emergency drilling system, which comprises the following steps:
1. the plan loading and operation control process comprises the following steps:
(1) logging in: the user inputs a user name and a password, only the user with the administrator authority can log in the escape plan generation subsystem, and the user creation and the authority setting are set by the user management system.
(2) And (5) searching a plan. The user logs in the system, and after the related initialization operation is carried out, the plan file and the flow control file in the database can be searched. The plan file is edited in the plan editing system, and the user can view the name, author, establishing time, plan description, exercise task requirement, history exercise record and other information of the plan. The flow control file is a file for controlling the entire drilling flow generated according to the demonstration script.
(3) And loading the plan. After the user selects the plan file and the flow control file, the plan loading and operation control system reads the plan data, initializes the object to be generated by each federal member according to the content of the plan data, and complains the woman ason flow control command to other federal members according to the content of the flow control file, so that the whole simulation system is promoted according to the drilling script.
(4) And (5) operation control. During the process that the system advances according to the flow, the user can perform dynamic control on the system, such as adding an emergency, adding a model to a scene, and the like.
(5) And (5) exiting the system. When the drill is finished or the drill needs to be finished for other reasons, the commander can choose to quit and finish the whole drill.
2. Starting a three-dimensional visual real-time rendering subsystem, receiving the plan file information from the plan generating subsystem, and establishing a local rendering object; and then, the three-dimensional visual real-time rendering subsystem receives an action instruction about a person from the virtual person control member VH and performs simulation according to the instruction information content, and in the process, the three-dimensional visual real-time rendering subsystem simulates and displays the earthquake emergency rescue process in a multimedia expression form of animation, image, sound and picture. In this embodiment, the three-dimensional view real-time rendering subsystem is an independent subsystem, operates when the virtual simulation drilling begins, registers in the system after a series of scene initialization operations, enters a graphic display cycle, receives messages to represent the action and position information of each virtual person, and feeds back the system scene filling and virtual person information in real time, and includes a commander control module and a virtual person control module.
3. Performing kinetic calculations: the method comprises the steps of simulating physical interaction of debris in the ruins and human parts by adopting a physical engine, and simulating mechanical performances including collision detection and rigid body dynamics after collision occurs among objects and between the objects and scenes.
4. And data communication among the director group, the drill group and the evaluation group is carried out by adopting a communication interface. The communication interface adopts a winlock interface, uses a TCP protocol to carry out communication, and the message (packet) types approximately comprise a login packet, a login reply packet, a drilling control packet, an event injection packet, an event sending packet and a decision submission packet.
The invention also provides a memory storing a plurality of instructions for implementing the method according to the first embodiment.
As shown in fig. 3, the present invention further provides an electronic device, which includes a processor 301 and a memory 302 connected to the processor 301, where the memory 302 stores a plurality of instructions, and the instructions can be loaded and executed by the processor, so that the processor can execute the method according to the first embodiment.
The system and the method of the embodiment combine the computer technology with actual drilling and professional application, solve various problems faced by actual earthquake rescue drilling by the information technology, the network technology, the multimedia technology, the virtual reality technology, the simulation technology, the man-machine interaction technology, the three-dimensional modeling and the visualization technology, remove the restriction of objective factors on drilling implementation, improve drilling effect and enhance rescue ability; combining a virtual reality technology with real earthquake data, simulating a real earthquake scene by using an advanced virtual reality technology, simulating special effects of sound, light, smoke, rain, snow, fog, fire and the like with vivid performance on a real topographic map and instrument simulation, and jointly constructing a dynamic, intuitive and vivid virtual drilling environment; the high-rise architecture HLA is combined with the cooperative rescue of each department, and the interoperability, scalability, instantaneity and cooperativity of rescue drilling of each department are promoted by a hierarchical framework of an HLA earthquake rescue simulation system; the real earthquake disaster modeling and the real three-dimensional large terrain rendering and management technology are combined, the damage of the earthquake to the surface terrain is simulated, and the image of the real-time terrain to the driving motion of the rescue vehicle is simulated; the distributed virtual simulation earthquake emergency drilling system realizes a man-machine interaction mode taking natural language as a main mode and mouse and keyboard input as an auxiliary mode, takes three-dimensional images and environmental sound as an outlet, takes a vision and an auditory sense as themes, has rich senses, and is similar to actual drilling.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A distributed virtual simulation seismic application drilling system, comprising:
the system comprises a seismic environment resource database, an immersion display and interaction subsystem, an escape plan generation subsystem, a modeling and simulation subsystem, a three-dimensional visual scene real-time rendering subsystem, a virtual drilling evaluation subsystem, a virtual drilling recording and playback subsystem and a communication subsystem.
2. The distributed virtual simulation seismic application drilling system according to claim 1, wherein the distributed virtual simulation seismic application drilling system uses high-level architecture HLA as a simulation technology framework of the distributed system, and uses a core RTI in HLA as a support environment for simulation operation of the distributed system.
3. The distributed virtual simulation seismic application drilling system of claim 1, wherein the seismic environment resource database comprises:
(1) seismology theory knowledge base: basic concepts such as geophysical basic knowledge, seismic source, epicenter, magnitude of earthquake, coverage range and damage range are covered, and various theoretical knowledge such as grade assessment and the like related to seismology is covered. The learning related knowledge content can be selectively retrieved according to needs in the drilling process, and the display mode and means comprise: text, picture, video, 3D modeling and virtual simulation;
(2) earthquake rescue method knowledge base: the method covers various theoretical methods related to earthquake rescue and successful experience introduction analysis of historical cases, and a driller can selectively read and learn related knowledge contents as required, and the display modes and means comprise: text, picture, video, 3D modeling and virtual simulation;
(3) the escape method knowledge base comprises the following steps: the method and theoretical knowledge of the invention for escaping from earthquake and the successful escape case analysis in the historical case are covered, the driller can selectively read and learn the related knowledge content according to the requirement, and the display mode and means comprise: text, picture, video, 3D modeling and virtual simulation;
(4) rescue tool library: various emergency rescue tools constructed through 3D modeling are built in the system, such as rescue facilities of vehicles, tents, crowbars, jacks, cranes, lift trucks, unmanned aerial vehicles and the like, a user can open a required 'rescue tool model' from a tool box in real time as required in the teaching and simulation training process, and each 'three-dimensional tool' is matched with corresponding text introduction and related data; also including picture, location and video presentation of rescue tools for various scenes;
(5) historical typical case library: a plurality of typical earthquake cases are arranged in the system for a driller to call, study and refer, such as the Sakashen earthquake, the Tang mountain earthquake, the Wenchuan earthquake and the like, each case is provided with abundant historical images and text introduction, and the contents relate to the basic causes, the damage degree, the earthquake source, the earthquake center, the earthquake magnitude, the coverage range, the damage range, the casualties and the experience teaching case analysis of the escape and emergency rescue process of the earthquake.
4. The distributed virtual simulation seismic application drilling system according to claim 1, wherein the escape plan generation subsystem performs concept plan modeling with the same concept description library of the related field as a background in combination with natural environment data, starting from virtual emergency drilling; then the concept plan model is mapped to a simulation plan model which can be operated through an earthquake disaster plan editor in combination with entity model data, and finally simulation operation is carried out to obtain a simulation result; the escape plan generating subsystem is used as a question system of the whole system, emergency public safety events under various conditions and various conditions are generated through plan editing, the scene of drilling is generated, a simulation modeling method of the emergency public events is adopted, emergency command processing mechanisms aiming at different public safety events are drilled on a platform through the trained public safety event plans, the emergency command processing mechanisms comprise rescue resource allocation, and users can configure and schedule emergency rescue resources and facilities; the user can configure rescue resources and facilities with different quantities to different rescue places and rescue team members, and push proper rescue route information, resource configuration information or rescue scheme information, so that feasible data, resources and technical support are provided for the rescue workers; various types of edited and set emergency rescue data can be stored into one or more fixed configuration files, and one or more rescue scheme files are finally formed by combining the current three-dimensional scene; the user can open the simulation scene and configure the simulation scene in real time to carry out drilling contents such as escape, emergency management, rescue teaching training and the like.
5. The distributed virtual simulation seismic application drilling system according to claim 1, wherein the immersion display and interaction subsystem directly interacts with the trainee and collects the interaction from the trainee in real time, and the interaction information is transmitted to the three-dimensional visual real-time rendering subsystem.
6. The distributed virtual simulation seismic application drilling system according to claim 1, wherein the three-dimensional view real-time rendering subsystem includes simulation of the surrounding terrain of emergency safety events, landforms, buildings, vehicle entities, and the representation of disaster-stricken processes; and according to the user instruction, the real-time scene roaming.
7. The distributed virtual simulation seismic application drilling system according to claim 1, wherein the modeling and simulation subsystem is configured to generate various models required by the system and run the models in real time, a result of model running is submitted to the three-dimensional view real-time rendering subsystem in real time, and then a result of user interaction is fed back to the modeling and simulation subsystem, and the modeling and simulation subsystem obtains a new model running result according to the user interaction and submits the new model running result to the three-dimensional view real-time rendering subsystem in real time.
8. The distributed virtual simulated seismic application drilling system as claimed in claim 1, wherein said virtual drilling recording and playback subsystem establishes a temporal connection, stores and organizes the recorded video of the running status of each scene and the evaluation of experts in the course of virtual drilling according to a temporal sequence, and reads out these records and displays the running status of each scene and the evaluation of experts in the temporal sequence during playback; the virtual drilling recording and playback subsystem is closely combined with the drilling resource management subsystem, logs obtained by the recording module are stored by the drilling resource management subsystem, and required records are retrieved and read out and are used for playing back video or outputting expert comments.
9. The distributed virtual simulation seismic application drilling system according to claim 1, wherein the virtual drilling evaluation subsystem is used for evaluating the effect of emergency drilling, before drilling evaluation, an index system for drilling evaluation needs to be established, and the selection of the evaluation index is guided by system task requirements.
10. The distributed virtual simulation seismic application drilling system of claim 1, wherein the communication subsystem is gigabit high speed ethernet.
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