CN116362045B - Lunar geographic information system and lunar surface activity simulation method - Google Patents
Lunar geographic information system and lunar surface activity simulation method Download PDFInfo
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Abstract
The invention discloses a lunar geographic information system and a lunar surface activity simulation method. The system comprises: the data management service center for carrying out integrated management on the full lunar geographic information data is used for constructing a joint simulation platform of a joint simulation system with simulation model management and simulation flow control capability, rendering a lunar activity object under a lunar fusion environment, and carrying out interactive control on the joint simulation platform through a Web control interface to realize a fictive engine for lunar activity simulation under the lunar fusion environment. The invention not only can realize three-dimensional visual browsing analysis of accurate lunar geographic information data, but also can realize lunar activity simulation in a lunar fusion environment, thereby accurately describing interaction and sliding relationship between terrain and mobile facilities and finely rendering fine structure and scientific detection process of the mobile facilities.
Description
Technical Field
The invention relates to the technical field of geographic information systems, in particular to a lunar geographic information system and a lunar surface activity simulation method.
Background
In lunar exploration engineering, in order to smoothly carry out various lunar surface exploration tasks, it is required that a mobile facility is loaded with various exploration instruments, and the mobile facility can smoothly move in a large enough exploration range through rugged terrains under a complex environment of the lunar surface.
However, the existing geographic information system is mainly used for browsing and simply analyzing various information in the moon range, such as path planning and animation display of lunar activities, but cannot accurately describe interaction and sliding relations between terrains and mobile facilities, and cannot finely render fine structures and scientific detection processes of the mobile facilities.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a lunar geographic information system and a lunar surface activity simulation method aiming at the problems existing in the prior art.
In order to solve the technical problems, the invention provides a lunar geographic information system, which comprises a data management service center, a joint simulation platform and a illusion engine, wherein the data management service center and the joint simulation platform are both connected with the illusion engine; the data management service center is used for carrying out integrated management on the acquired full moon geographic information data; the joint simulation platform is used for constructing a joint simulation system with simulation model management and simulation flow control capacity based on the integrated lunar surface active object model; the illusion engine is used for rendering and constructing a lunar surface active object in a lunar surface fusion environment according to the full lunar sphere geographic information data and the lunar surface active object model data, and carrying out interactive control on the combined imitation platform through the Web control interface so as to realize lunar surface active simulation in the lunar surface fusion environment.
In order to solve the technical problems, the invention also provides a lunar surface activity simulation method which is realized by using the lunar geographic information system provided by the technical scheme, and the method comprises the following steps: the illusion engine acquires full moon geographic information data from a data management service platform and acquires lunar surface active object model data from a joint simulation platform; rendering and constructing a lunar surface active object in a lunar surface fusion environment according to the lunar geographic information data and the lunar surface active object model data; and the interactive control is carried out on the combined simulation platform through the Web control interface, so that the lunar activity simulation under the lunar fusion environment is realized.
The beneficial effects of the invention are as follows: the integrated management is carried out on massive full moon geographic information data by constructing a data management service center, a joint simulation system with simulation model management and simulation flow control capability is constructed by a joint simulation platform, a fictive engine is used as a main development and visualization platform, excellent scene expressive force is fully exerted, the moon geographic information data is introduced into a three-dimensional scene for rendering, and three-dimensional visual browsing analysis of accurate moon geographic information data can be realized; the joint simulation platform is connected with the illusion engine, the lunar surface movable object under the lunar surface fusion environment is rendered and constructed, the illusion engine carries out interactive control on the joint simulation platform through the Web interface, so that lunar surface activity simulation under the lunar surface fusion environment is realized, the interaction and sliding relationship between the terrain and the mobile facilities are accurately described, and the fine structure and the scientific detection process of the mobile facilities are finely rendered.
Additional aspects of the invention and advantages thereof will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a block diagram of a lunar geographic information system according to one embodiment of the present invention;
FIG. 2 is a block diagram of a lunar geographic information system according to another embodiment of the present invention;
FIG. 3 is a flowchart of a lunar surface activity simulation method according to an embodiment of the present invention.
Detailed Description
Other advantages and effects of the present disclosure will become readily apparent to those skilled in the art from the following disclosure, which describes embodiments of the present disclosure by way of specific examples. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present disclosure. The disclosure may be embodied or practiced in other different specific embodiments, and details within the subject specification may be modified or changed from various points of view and applications without departing from the spirit of the disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
Fig. 1 is a block diagram of a lunar geographic information system according to an embodiment of the present invention. As shown in FIG. 1, the system comprises a data management service center, a joint simulation platform and a illusion engine, wherein the data management service center and the joint simulation platform are both connected with the illusion engine.
The data management service center is used for carrying out integrated management on the acquired full moon geographic information data; the joint simulation platform is used for constructing a joint simulation system with simulation model management and simulation flow control capacity based on the integrated lunar surface active object model; the illusion engine is used for rendering and constructing a lunar surface active object in a lunar surface fusion environment according to the full lunar sphere geographic information data and the lunar surface active object model data, and carrying out interactive control on the combined imitation platform through the Web control interface so as to realize lunar surface active simulation in the lunar surface fusion environment.
According to the lunar geographic information system provided by the embodiment of the invention, massive full lunar geographic information data is integrated and managed through the data management service center, a joint simulation system with simulation model management and simulation flow control capability is constructed through the joint simulation platform, an illusion engine is used as a main development and visualization platform, excellent scene expressive force is fully exerted, lunar geographic information data is introduced into a three-dimensional scene for rendering, and three-dimensional visual browsing analysis of accurate lunar geographic information data can be realized; the joint simulation platform is connected with the illusion engine, the lunar surface movable object under the lunar surface fusion environment is rendered and constructed, the illusion engine carries out interactive control on the joint simulation platform through the Web interface, so that lunar surface activity simulation under the lunar surface fusion environment is realized, the interaction and sliding relationship between the terrain and the mobile facilities are accurately described, and the fine structure and the scientific detection process of the mobile facilities are finely rendered.
The following describes the components of the lunar geographic information system according to the embodiment of the present invention in detail with reference to fig. 2.
1) Data management service center.
Based on the integrated whole month data, the functions of preprocessing, warehousing and publishing the space data are constructed, and a mass space data management service center is formed. The data management service center has the functions of data preprocessing, data storage management, data organization, data service configuration and sharing, data service release and the like. The method can provide the required data service for each function in the system more quickly and accurately.
When the data acquisition is carried out, the lunar full-moon digital topographic data, lunar digital orthophoto data, lunar mineral element distribution data, lunar temperature distribution data, lunar reflectivity spectrum data, lunar geological distribution data, lunar gravitational field data, lunar soil maturity data, water ice resource distribution data and the like can be downloaded and collected at a public website.
And when the data are sorted, the full moon geographic information data are classified according to data types, and the space geometric registration and geographic coordinate system unification are carried out on the data from different sources.
Specifically, the full moon geographic information data is sorted and stored according to data type data such as raster data, vector data, metadata, a three-dimensional model and the like. The raster data is uniformly converted into a tiff format, the vector data is uniformly converted into a shp format, the three-dimensional geometric model supports fbx, dae, obj, 3ds, dxf formats and max, maya, blender, cinema4D, modo, lightwave formats, other movable object models are uniformly packaged into an FMU model, and model import is performed based on FMI standard specifications provided in a joint simulation platform interface library.
And carrying out space geometric registration on the data from different sources to realize space unification on the multi-source and multi-mode data. In the embodiment of the invention, the spatial geometric registration can be carried out by adopting a full moon drawing product registration method based on a spherical triangle network. The registration method of the full-moon drawing product based on the spherical triangle network comprises the steps of firstly obtaining homonymous points through feature matching, then establishing a one-to-one corresponding spherical Delaunay triangle network based on the homonymous points, and finally limiting geometric correction in a local spherical triangle surface element by combining the triangle network and an accurate spherical triangle barycentric coordinate transformation model to realize high-precision registration.
And carrying out geographic coordinate system unification on the data from different sources, and converting the projection coordinates into a geographic coordinate system. In the embodiment of the invention, the geocoordinate system is unified by taking Moon2000 as a standard. The data after the space geometric position and the coordinate system are unified can provide moon space information more accurately.
And (3) performing quality inspection on the geographic information data of the whole moon, performing warehousing operation on the data meeting the quality requirements, and establishing a related database.
Specifically, the data of the different data formats are organized according to data types, and the main work of building the spatial data base is to build a lunar raster database, a vector database, a metadata database, a model database and the like according to established database standards and specifications. The metadata base is the basis for inquiring, searching, exchanging and transmitting data, and mainly comprises identification information, content information, quality information, reference system information, update maintenance information, data distribution information, contact information, metadata reference information, metadata expansion information and the like. And constructing each metadata according to a unified standard, and realizing synchronous management of the metadata and corresponding space data. And (3) inputting all the processed and checked data into a spatial database through a spatial data management tool to finish final data warehousing.
And organizing and symbolically configuring each layer element of the database, creating a map service and configuring a service release type.
Specifically, the data release service is a core component of the construction of a geographic information system, and various moon detection data files have large quantity, and the browsing efficiency is low due to the fact that the low resolution is not sliced along with the improvement of a moon detection technology; the high-resolution slicing time is long, and the occupied disk space is large; for other business application systems that need to provide services, the map services and the function services of the platform are used by standard specifications.
In the embodiment of the invention, raster data is published by utilizing COG (Cloud optimized GeoTIFF) technology, and the COG can retain tile and overview (overview) information besides storing original pixel data, compress image information and endow a TIFF file to be provided on an HTTP file server, so that a high-efficiency working mode returned according to Rang is realized.
2) And (5) a joint simulation platform.
The joint simulation platform is used for constructing a joint simulation system with simulation model management and simulation flow control capacity based on the integrated lunar surface active object model. The method can realize the functions of management, simulation condition setting, simulation time sequence setting, simulation control, simulation process monitoring and the like of the lunar surface active object model. The solving process of the multiple simulation models in the system can be accurately controlled.
The joint simulation system comprises a joint simulation slave system and a joint simulation master system.
The joint simulation slave system comprises a lunar surface active object model and a cross-linked relation model among lunar surface active object models. The joint simulation defines a state machine from the system.
The joint simulation main system is used for driving the joint simulation slave system to perform joint simulation according to the lunar surface activity simulation task, solving the dynamic state parameters of the lunar surface active object in the lunar surface fusion environment, and feeding simulation data back to the illusion engine in real time to realize lunar surface activity simulation in the lunar surface fusion environment.
When receiving a simulation request sent by a illusion engine, the joint simulation main system inquires the position information, the environment information and the lunar surface movable object model attribute information of the current simulation moment from the joint simulation auxiliary system based on a state machine; and generating a control instruction to drive the simulation iteration of the joint simulation slave system according to the position information, the environment information and the lunar surface active object model attribute information of the current simulation moment. If the combined simulation master system inquires the information such as moon orbit, sunlight, temperature and the like at specific simulation time and the running conditions such as energy, information and transportation of the detector from the slave system based on the state machine, and drives the simulation iteration solution of each slave system model, so that the overall simulation of the system is realized.
The construction types of the lunar surface movable object model comprise a three-dimensional model, a dynamic model and a motion control model; the construction content of the lunar surface movable object model comprises a mechanical system, a power supply system, a control system, an environment parameter system and a thermal management system.
The lunar surface movable object model in the joint simulation platform can be a model constructed according to the needs, and can also be obtained by obtaining the existing model. When constructing the lunar surface active object model, a three-dimensional model and a dynamic model of the lunar surface active object model are required to be constructed.
Based on the integrated lunar surface active object model, a distributed joint simulation system with a master-slave structure is built on the MWorks joint simulation platform software. The specific construction steps comprise the steps of defining the cross-linking relation of each movable object model system, determining the modeling content of each movable object model subsystem and determining the input and output items of each model subsystem.
System modeling includes mechanical systems, power supply systems, control systems, environmental parameter systems, and thermal management systems. The mechanical system comprises a power supply end, a transmission mechanism and a moving part; the power supply system comprises a power supply module, a cable module and power consumption modules of different types; the environment parameter system comprises lunar surface geographic information, spatial environment information and weight level parameters; the control system comprises a controlled object, a control algorithm and a logic executing mechanism; the thermal management system includes a heat source, a heat transfer mode, a heat transfer component, and a heat sink.
According to different professional fields or function types related to the lunar surface active object subsystem, different software can be adopted to carry out model design, internal control parameter interface parameter setting is reserved, plug-in components or functions are exported through the model to be a simulation model with a specified format, and integration is carried out on the combined simulation platform software.
The lunar surface activity model is designed according to an input/output interface based on a block diagram and a function mixed modeling mode, and input/output is connected on a platform in batches, so that data transmission between the models can be formed. And the method is transmitted to different computers for solving and calculating and returning calculation results in a mode of communicating with the TCP/IP network through the compiled standard agent module. The joint simulation platform numbers the lunar surface movable object models, sets the simulation step length to be a preset value (such as 0.001 s), and programs the simulation flow of all simulation models.
And constructing a simulation slave system based on the overall simulation model architecture and the solving process of the lunar surface active object control system. The method comprises the steps of respectively constructing functional models of lunar mobile object models such as lunar mobile facilities, lunar vehicles and sampling equipment by using Mworks software from a system, designing a system control model by using Matlab/simulink, constructing a public support system model by using AMESim software, respectively realizing logic functions and accurate physical process calculation of the model from the inside of the system model in a physical modeling or mathematical modeling mode, and packaging the model into a file format which can be imported by Mworks. The data input of each model is injected by a main system or other slave system modules, and the calculation output of each slave system module can be used as the input of simulation view parameters, so that the lunar activity simulation is intuitively displayed. The system packaging standard is used for editing the internal parameters through the interface, and the modification can be performed on the joint simulation platform software when the modification and adjustment are needed.
And constructing a simulation main system under the instruction time sequence based on the combined simulation function of the MWORKS according to the type conditions of the lunar surface activity simulation task and the platform tool. And the main system runs according to the flight control program and the flight control event compiled by the simulation task, so as to realize the control of the simulation process. And meanwhile, an external control instruction controls parameters and states of the slave system simulation model through the set instruction analysis module. The master system queries environmental parameter information such as lunar orbit, sunlight, temperature, time and the like at specific simulation time based on simulation calculation step length, the calculation results of energy sources, information, transportation and the like of each slave system simultaneously return data to the master system through a TCP/IP protocol, and a master-slave system model is solved iteratively in a single simulation step length, so that the overall simulation operation of the system is realized.
3) An illusion engine.
The illusion engine is used for rendering and constructing a lunar surface active object in a lunar surface fusion environment according to the full lunar sphere geographic information data and the lunar surface active object model data, and carrying out interactive control on the combined imitation platform through the Web control interface so as to realize lunar surface active simulation in the lunar surface fusion environment. The functions of rendering the lunar macroscopic scene, fine simulation of the lunar movable small scene and the like can be realized. The embodiment of the invention fully utilizes the strong scene expressive force and the small scene fine description capability of the illusion engine, realizes the high-immersion restoration of the lunar scene, accesses the spatial information data in the form of tile data flow, ensures higher scene rendering and browsing speed, realizes the functional fusion of the digital twin technology and the geographic information system, and ensures that the digital twin technology and the geographic information system realize geographic information browsing and engineering application in the same system.
In the embodiment of the invention, the illusion engine 4 is used as a main development platform, a three-dimensional sphere model provided by a Cesium for Unreal plug-in is combined, and a macroscopic three-dimensional scene is constructed by reading data stream service rendering issued by a data management service center. The macroscopic three-dimensional scene generates an image environment by using streaming tile data, and a three-dimensional terrain model is formed by generating terrain data of a quantized mesh.
The data management service center is used for managing and releasing the whole moon geographic information data, and the data management service center comprises multisource photogrammetry and remote sensing image data and topographic data which are acquired by the detectors such as a moon orbit device, a lander, a patrol device and the like. The data management service center provides services according to a specific mode of the URL, the image data can be issued as TMS service of OSGEO standard or WMTS and WMS service of OGC standard, and the like, and the topographic data can be issued as topographic tile service of quantized-mesh.
When the events such as viewpoint change and layer operation occur, the system sends a service request to the data management service center station through the URL address based on the HTTP protocol, and acquires the required tile data issued by the GIS data service.
The system generates the loaded GIS data into the real texture and the terrain environment of the lunar surface through the rendering module of the three-dimensional sphere model of the Cesium for Unreal plug-in unit so as to generate the macroscopic three-dimensional scene.
And creating and editing typical surface features of the macroscopic three-dimensional scene in the illusion engine, and generating virtual terrain with preset precision (such as centimeter level) through simplex+fbm simple noise and fractal Brownian motion model.
Assuming that an N multiplied by N elevation map is to be generated, calculating a height value corresponding to each pixel point in the elevation map by utilizing a three-dimensional Simplex noise function to obtain a basic elevation map; the elevation graph obtained through the Simplex noise algorithm is gentle, and then the fractal algorithm FBM is used for improvement. The fractal Brownian motion algorithm mainly superimposes noise functions with different frequencies and amplitudes, so that the noise has more details. The FBM formula is:
F i+l ＝F i ×L
A i+1 ＝A i ×G
wherein A represents the weight of each noise superposition, F represents the proportion of the superposition noise, and the initial values of A and F are 1.i is the number of cycles, and represents the superposition effect of multiple elevation maps. L and G represent the multiplication coefficients that modify the values of a and F in each iteration.
And obtaining new terrain data, and generating centimeter-level virtual terrain with good sense of reality and high confidence.
And performing parameterization treatment on the lunar surface active object model to convert the lunar surface active object model into a grid model, and rendering and constructing the lunar surface active object in a lunar surface fusion environment through a three-dimensional sphere model. And realizing the high-quality rendering effect of the scene.
The illusion engine accesses and interactively interfaces the combined simulation platform through the Web control interface to realize the control of various simulation activities in the combined simulation platform, including the start, pause, end and the like of the simulation activities such as the running of the lunar rover, the sampling actions of astronauts and the like, and can jointly develop various simulation activities in the platform, thereby finally realizing the lunar activity simulation in a lunar surface fusion environment.
The lunar geographic information system provided by the embodiment of the invention is described in detail below with a specific example.
And when data are put into storage, putting the lunar DOM, the DEM and the lunar scientific mobile facility model into storage, releasing lunar data service, integrating a dynamic and motion control model of the lunar mobile facility in a joint simulation platform, and finally accessing the data service in the illusion engine 4 through Cesuim for Unreal and accessing a joint simulation control function. Finally, a lunar surface moving device and lunar surface environment dynamic model can be built under a lunar surface macroscopic scene, and the contact relation between lunar wheels and lunar ground is described, so that simulation analysis is carried out, real speed and position posture solving under interaction of the lunar surface moving device and topographic data are solved in real time, and the refresh rate of rendering capacity of the built high-precision high-immersion scene can reach 45Hz. Technical support can be provided for lunar mission planning and scheme verification.
In the embodiment of the invention, the full moon geographic information data product is collected and integrated as lunar surface environmental data, and the functions of preprocessing, warehousing and publishing the space data are integrated to form a mass space data management center; the illusion Engine 4 (Unreal Engine 4) is used as a development Engine to construct a three-dimensional scene, so that the three-dimensional visualization of the lunar surface activity and the lunar space data browsing and analyzing capability are realized; constructing a joint simulation platform, integrating each activity model to the platform, and using the joint simulation platform as a lunar surface activity object model management and driving platform to realize lunar surface activity model joint simulation; and publishing the lunar space data into standard geographic information data service, accessing into a illusion engine for rendering, and realizing scene construction and data application. According to the embodiment of the invention, the strong scene expressive force and the fractal construction capability of the illusion engine 4 are fully utilized, the accurate geographic information data provided by the standard service of the traditional geographic information system is accessed, the rebound and slip processes when the lunar movable objects of the lunar simulation system are in weak collision with the ground, rock and other obstacles in the walking process are fully simulated, the influences of various different topography fluctuation, rock distribution and other aspects are fully considered, the dynamic state parameters of the lunar movable objects in the lunar fusion environment are solved, the small scene fine activity simulation is realized, and the two functions of lunar activity simulation verification and accurate lunar geographic information data browsing analysis application can be simultaneously realized.
As shown in fig. 3, an embodiment of the present invention provides a lunar surface activity simulation method, which is implemented by using the lunar geographic information system provided in the foregoing embodiment, and includes:
s1, a illusion engine acquires full moon geographic information data from a data management service center station and acquires lunar surface movable object model data from a joint simulation platform;
s2, rendering and constructing a lunar surface active object in a lunar surface fusion environment according to the lunar surface geographic information data and the lunar surface active object model data;
and S3, performing interactive control on the combined simulation platform through a Web control interface to realize lunar surface activity simulation in a lunar surface fusion environment.
According to the lunar surface activity simulation method provided by the embodiment of the invention, massive full lunar geographic information data is integrated and managed through the data management service center, a joint simulation system with simulation model management and simulation flow control capability is constructed through the joint simulation platform, an illusion engine is used as a main development and visualization platform, excellent scene expressive force is fully exerted, lunar geographic information data is introduced into a three-dimensional scene for rendering, and three-dimensional visual browsing analysis of accurate lunar surface geographic information data can be realized; the joint simulation platform is connected with the illusion engine, the lunar activity object under the lunar fusion environment is rendered and constructed, and the illusion engine carries out interactive control on the joint simulation platform through the Web interface, so that lunar activity simulation under the lunar fusion environment is realized.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention is essentially or a part contributing to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (7)
1. The lunar geographic information system is characterized by comprising a data management service center, a joint simulation platform and a illusion engine, wherein the data management service center and the joint simulation platform are both connected with the illusion engine;
the data management service center is used for carrying out integrated management on the acquired full moon geographic information data;
the joint simulation platform is used for constructing a joint simulation system with simulation model management and simulation flow control capacity based on the integrated lunar surface active object model;
based on an integrated lunar surface active object model, building a distributed joint simulation system with a master-slave structure on MWorks joint simulation platform software, wherein the specific building steps comprise the steps of determining the cross-linking relation of each active object model system, determining modeling content of each active object model subsystem and determining input and output items of each model subsystem;
the construction types of the lunar surface movable object model comprise a three-dimensional model, a dynamic model and a motion control model; the construction content of the lunar surface movable object model comprises a mechanical system, a power supply system, a control system, an environment parameter system and a thermal management system;
according to different professional fields or function types related to the movable object subsystem of each lunar surface, adopting different software to carry out model design and reserving internal control parameter interface parameter setting, deriving plug-in components or function output into a simulation model with a specified format through the model, and integrating on the combined simulation platform software;
numbering the lunar surface movable object models by the joint simulation platform, setting the simulation step length as a preset value, and arranging the simulation flow of all simulation models;
the joint simulation system comprises a joint simulation slave system and a joint simulation master system;
the joint simulation slave system comprises a lunar surface movable object model and a cross-linking relation model among the lunar surface movable object models; the joint simulation defines a state machine from the system;
the joint simulation main system is used for driving the joint simulation slave system to perform joint simulation according to the lunar surface activity simulation task, solving the dynamic state parameters of the lunar surface active object in the lunar surface fusion environment, and feeding simulation data back to the illusion engine in real time to realize lunar surface activity simulation in the lunar surface fusion environment;
the joint simulation main system is used for inquiring the position information, the environment information and the lunar surface movable object model attribute information of the current simulation moment from the joint simulation auxiliary system based on the state machine when receiving the simulation request sent by the illusion engine; generating a control instruction to drive simulation iteration of the joint simulation slave system according to the position information, the environment information and the lunar surface active object model attribute information of the current simulation moment;
and the illusion engine is used for rendering and constructing a lunar surface active object in a lunar surface fusion environment according to the full lunar sphere geographic information data and the lunar surface active object model data, and carrying out interactive control on the joint simulation platform through a Web control interface so as to realize lunar surface active simulation in the lunar surface fusion environment.
2. The lunar geographic information system of claim 1 wherein the data management service center is specifically configured to:
classifying the full moon geographic information data according to data types, and carrying out space geometric registration and geographic coordinate system unification on the data from different sources;
performing quality inspection on the full moon geographic information data, performing warehousing operation on the data meeting the quality requirements, and establishing a related database;
and organizing and symbolically configuring each layer element of the database, creating a map service and configuring a service release type.
3. The lunar geographic information system according to claim 2, wherein the spatial geometrical registration is performed on the data from different sources by using a global triangulation product registration method based on spherical triangulation, and the geographic coordinate system is unified by using Moon2000 as a standard.
4. A lunar geographic information system as claimed in any one of claims 1 to 3 wherein the illusion engine is specifically for:
reading a data stream service issued by the data management service center, and constructing a macroscopic three-dimensional scene through rendering of a three-dimensional sphere model;
creating and editing typical surface features of the macroscopic three-dimensional scene, and generating virtual terrain with preset precision through simple noise and a fractal Brownian motion model;
and performing parameterization treatment on the lunar surface active object model to convert the lunar surface active object model into a grid model, and rendering and constructing the lunar surface active object in a lunar surface fusion environment through the three-dimensional sphere model.
5. The lunar geographic information system of claim 4 wherein the macroscopic three-dimensional scene generates an imaging environment from streaming tile data and a three-dimensional terrain model is formed from terrain data that generates a quantized grid.
6. A lunar geographic information system as claimed in any one of claims 1 to 3 wherein the illusion engine uses an illusion engine 4.
7. A lunar surface activity simulation method, characterized in that it is implemented by using the lunar geographic information system according to any one of claims 1 to 6, and the method comprises:
the illusion engine acquires full moon geographic information data from a data management service platform and acquires lunar surface active object model data from a joint simulation platform;
rendering and constructing a lunar surface active object in a lunar surface fusion environment according to the lunar surface geographic information data and the lunar surface active object model data;
and performing interactive control on the joint simulation platform through a Web control interface to realize lunar activity simulation in a lunar fusion environment.
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