CN201910818U - Seismic disaster relief simulation system - Google Patents

Abstract

The utility model discloses a seismic disaster relief simulation system, which comprises a server, a database, an I/O (input/output) device, a router and a plurality of client sides. The server is used for receiving access of each client side through the router and providing corresponding seismic disaster simulation data in the database and access prompt data in the server; the database is used for storing various types of earthquake simulation data; the I/O device is used for controlling the database and inputting various types of seismic disaster simulation data; the router is used for providing routing access between the server and each client side; and the client sides are used for receiving input of a user and displaying the data provided by the server to the user. The system can effectively achieve the seismic disaster simulation and the comprehensive inspection of each emergency department; and the system can be divided into a part for detailed scene modeling and a part for real-time building collapse simulation, and thus the scalability of the system is enhanced.

Description

Earthquake disaster rescue analogue system

Technical field

The utility model relates to electronic system, is meant a kind of earthquake disaster rescue analogue system especially.

Background technology

Earthquake is a kind of paroxysmal natural calamity of nature, and destructive power is strong, and is not easy to predict in advance, after earthquake disaster takes place, can bring heavy losses to human society.It often causes, and building collapse, facility damage, traffic jam, dike breach cave in, casualties, cause tremendous loss for people's lives and properties and national economic development.

Owing to be subjected to the restriction of various environmental factors, can not adopt the mode of realistic simulation in the actual life, each can be placed oneself in the midst of in the true environment of earthquake disaster per capita, and the sense of reality earthquake disaster is dangerous on the contrary sometimes, or even the environment of this reality can't be provided at all.Be intended to check the earthquake emergency rehearsal work of government emergency treatment procedures and respond to cause the generally attention of governments at all levels and relevant department in recent years, but this live simulation rehearsal relate to department many, organize difficulty greatly, funds demand height.Can not become the rehearsal mode of normality.

Earthquake emergency rehearsal work in check government emergency treatment procedures and respond has caused the generally attention of governments at all levels and relevant department, but the rehearsal of this live simulation relate to department many, organize difficulty greatly, funds demand height.Can not become the rehearsal mode of normality.For this reason, some departments take " desktop rehearsal " form that the contingency operation of prediction scheme and supposition is deduced.The mode of this " empty talk " is widely adopted within the specific limits because tissue is convenient, economical and practical, form is flexible.But because " desktop rehearsal " can't provide real relatively disaster scene and lively emergent background information, authenticity is poor, and confidence level is lower.

Because the sight in the earthquake field all is ex-post analysis, can't detect the problem of responding agencies rescue ability at earthquake field.

The utility model content

In view of this, the utility model is to provide a kind of earthquake disaster rescue analogue system, to solve the above-mentioned problem that can't detect the responding agencies rescue ability at earthquake field.

For addressing the above problem, the utility model provides a kind of earthquake disaster rescue analogue system, comprising:

Server, circuit connect router and database, receive the visit of each client by router, reply the sympathetic earthquakes disaster analogue data in the database, and the visit reminder-data of himself;

All kinds of earthquake simulation data of storage in the described database;

Described database connects the I/O equipment that is used to import all kinds of earthquake disaster analogue datas;

Router between circuit Connection Service device and each client, and provides routing forwarding;

Client is shown to the user with user's input and with the data that server provides, and circuit connects described router.

Described server comprises:

Central processing unit and digital signal processor, wherein, the synchronous DRAM of central processing unit and digital signal processor, flash memory, video coding/decoding module, audio coding decoding module, Ethernet interface chip and serial interface wherein are connected by pci bus between central processing unit and the digital signal processor; Synchronous DRAM links to each other with digital signal processor with central processing unit; Flash memory, audio coding decoding module, Ethernet interface chip and serial interface link to each other with central processing unit; Video coding/decoding module, audio coding/decoding module link to each other with digital signal processor.

Describe system of the present utility model above in detail, system of the present invention can effectively realize the simulation of earthquake disaster, and to the comprehensive detection of each responding agencies; In addition, comprehensively relatively this system also have following advantage:

The first, branch degrees of detail scene modeling: the degree true to nature at earthquake disaster virtual environment scene is one of decisive factor of decision simulated training effect.Yet, it also is the area that the places of cultural interest are concentrated the most that earthquake causes the area of disastrous consequence, it makes the well-regulated places of cultural interest changed beyond recognition immediately, become unordered chaotic scene, it is extremely complicated to destory the scene, and piling up mutually, cover, interting and involving between the on-the-spot irregular entity of eaerthquake damage, its structure is extremely complicated.Thereby it is infeasible that each part of earthquake field is all carried out detailed modeling.We support the three-dimensional scenic modeling with three layers of different degrees of detail model scheme for this reason.These three layers of degrees of detail models are respectively: macroscopical disaster area model, region of search model, operation field model.The corresponding different training mission of different degrees of detail models.

Second, the real-time collapse Simulation of building: can preestablish destructive process and result that all kinds of buildings or infrastructure are subjected in different factors (earthquake magnitude, influence field etc.), script according to training triggers automatically then, thereby is created on following building destruction scene that causes different conditions of earthquake motion effect.The built-in physical engine of system, building is according to certain physical rule collapse Simulation, and the law of conservation of momentum is followed in collision between the piece of ruins.Can simulate different buildings that macroseism causes and infrastructure breaking-up fully, heavy damage, moderate damage, slight damage, intact substantially different scenes and the regularity of distribution spatially thereof.

The 3rd, system extension: drillmaster or teaching notes personnel can oneself set up and visual earthquake disaster scene by earthquake disaster scene editing machine.Disaster incident scene is stored with the standard criterion form.Aspects such as the needed disaster scene of earthquake virtual emulation rescue training system, earthquake model, rescue outfit, training program and evaluation criteria can both allow the user expand voluntarily in the future.Can be according to different training requirements, the virtual disaster scene of Fast Reconstruction various ways repeatedly, ease for use is good, and is easy to maintenance.

Description of drawings

Fig. 1 is the system construction drawing among the embodiment;

Fig. 2 is the schematic diagram that concerns of earthquake model;

Fig. 3 is the cut-away view of server.

Embodiment

For clearly demonstrating the technical scheme in the utility model, provide preferred embodiment below and be described with reference to the accompanying drawings.

The utility model provides a kind of earthquake disaster rescue analogue system, but after its simulated earthquake disaster took place, to each department's output earthquake disaster situation, each department made the rescue reaction fast by the earthquake disaster situation.Referring to Fig. 1, it comprises:

Server is used for receiving by router the visit of each client, and the corresponding data in the database is provided, and the differentiation data of himself;

Database is used to store all kinds of earthquake simulation data;

I/O equipment is used to control database, and imports all kinds of earthquake simulation data;

Router is used to provide the visit of the route between server and each client;

Client is used to receive user's input and the data that server provides is shown to the user.

Server also can connect communication network, for example, is connected to the switching center of each wireless network by the Internet network, as GSM, GPRS, 3G network etc., and provides data to connect by these networks to each wireless user.

System among the embodiment has been described above, below the function of each equipment in the detailed description system.

At first, client 1 can be separately positioned on each department to be detected to client N, and is used by each personnel that participate in earthquake emergency rescue department.

The user can import all kinds of earthquake disaster data by I/O equipment in advance in database.The earthquake disaster data of each type can be set up all kinds of earthquake disaster scenes according to the simulation order shown in Fig. 2 in database.

Earthquake disaster site disposal training system need be set up case and the data that database is used for storage system.In the process of system's operation, can call the data in the database constantly.There is lot of data to need dynamic management in the system, mainly comprises two aspects: 1) the condition of a disaster data collected of various approach and the condition of a disaster data are carried out intermediate data behind the analysis and arrangement; 2) emergently deduce the needed various videos of training system, picture, sound and textual materials data, and exercise question, user, answer result data in the exam pool.

The data mining technology of magnanimity information has been adopted in data analysis, and the earthquake situations data of collecting are carried out analysis and arrangement, and wherein key message is extracted, classifies.

System adopts the MySQL database to carry out data management, MySQL not only supports multi-platform, also has no normal form requirement, adopt the standard SQL SQL, support greatly to advantages such as the binary data of 2GB and the inquiries of distribution optimization multi thread relatively more outstanding performance is arranged in the fail safe of management data, aspect stable.

Have lot of data to need storage backup and retrieval and inquisition in the system, the data owner that need manage will comprise following several respects:

(1) earthquake situations information data.

(2) earthquake situations intermediate analysis result data.

(3) earthquake ABC data

(4) the ABC data are deduced in earthquake emergency.

(5) shake routine data

(6) test item bank

(7) video of earthquake field, picture, sound, text material data.

Difference according to data type and occupation mode manages data in two ways: RDBM Relational Data Base Management and file data library management.

One, RDBM Relational Data Base Management

Relational database is mainly used to the info class data in the management system, comprises earthquake situations information, ABC, deduction knowledge, personnel's account information, shake example, examination question data etc.

(1) personnel's account management

In training process, different users of service has different accounts.Data management system will realize account etc. is promptly added, deletes, revised in the management of trainee's accounts information.Also to realize management, such as landing time, land number of times etc. to each account specifying information.

(2) earthquake situations information management

(3) earthquake ABC management

(4) information management is deduced in earthquake emergency

(5) test question information management

(6) user's training result information management

Two, file data library management

LDAP (LDAP, Lightweight Directory AccessProtocol) realizes providing the information service that is called as directory service.Directory service is a kind of special Database Systems, and it is browsed with search operation and carried out specific optimization specially at reading.Catalogue generally is used for comprising descriptive, based on the information of attribute and support the filter capacity of elaborate.Catalogue is not generally supported transaction management or the backrush strategy of Universal Database at the complexity of a large amount of renewal operating operations needs.The renewal of directory service is then generally all very simple.This catalogue can be stored various information such as comprising personal information, web link, jpeg image.In order to visit the information that is stored in the catalogue, just need run on the access protocal-LDAP on the TCP/IP.Information in the ldap directory is according to the tree tissue, and specifying information is stored in the data structure of clauses and subclauses (entry).The record that clauses and subclauses are equivalent to show in the relational database; Clauses and subclauses are the attributes (Attribute) with difference name DN (Distinguished Name), and DN is used for quoting clauses and subclauses, and DN is equivalent to the keyword (PrimaryKey) in the relation database table.Attribute is made up of type (Type) and one or more value (Values), the field (Field) that is equivalent in the relational database is made up of field name and data type, just for convenience of the needs of retrieving, Type among the LDAP can have a plurality of Value, rather than each territory that requires to realize for the redundancy that reduces data in the relational database must be incoherent.

Also store the data of each model in the database, described the data and the manufacturing process of each model below in detail:

1, divides the degrees of detail modeling

Support the three-dimensional scenic modeling with three layers of different degrees of detail model scheme.These three layers of degrees of detail models are respectively: macroscopical disaster area model, region of search model, operation field model.The corresponding different training mission of different degrees of detail models.

Each detail model at the training objective difference.Macroscopic view disaster area model is mainly used in macro-level and understands form, assign task, the division in search rescue district.The model of this part mainly adopts 3 d surface model, adds three-D grain pinup picture or the modeling rough to the disaster area scene as the landform altitude data model.

The region of search model is mainly towards the decision-making in-situ analysis.Comprise that the commander accepts task, arrives at the scene, the realization of investigation assessment, place division and virtual training processes such as caution, personnel placement and equipment configurations.The region of model reflection is the part of macroscopical disaster area model, is the zone of searching the victim according to the needs reseaching staff that training prefers the generation module appointment.The model of this part is intended the method that the complicated physical model of employing combines with 3 d surface model, and physical model is adopted in building and ruins, and its surrounding environment adopts 3 d surface model.

The operation field model is towards dynamic security supervision, the conceptual design of suing and labouring, the process of suing and labouring, in this process, relate to the change of entity, thereby adopt full three-dimensional entity model modeling, and need be to the weight of entity, hardness, any surface finish degree, physics and the behavioral trait modelings such as dynamics that are connected with adjacent entities.This a part of model is with very fine, and workload is bigger, so, can only set up a little zone in the region of search.This zone will be the place that the rescuer starts rescue and takes action.Edit training by the system manager and prefer generation module, specify which zone to need fine modeling, with as operation field model location.

In the scene modeling process, the method that adopts 3 d surface model, three-dimensional entity model and three-dimensional empty phantom type to combine.

Modeling criterion in 3dsMax can reduce basically following some:

● do simple mould

● the triangular topological relations of model for equilateral triangle, long strip type do not occur as far as possible

● when the object of performance elongate strip, the mode with pinup picture shows without model as far as possible

● it is higher than the efficient that changes smart mould to make simple mould again

● the quantity of model is not too many

● the density of reasonable distributed model

● the model of identical material does not merge at a distance

● keep the distance between model face and the face

● delete invisible

● show complex model with dough sheet

Its specific requirement is as follows:

(1) does simple mould

Imitate the modeling method of scene of game as far as possible, the model of design sketch is taken back direct usefulness do not recommend.Each frame of operation picture in the virtual reality all calculates in real time by video card and CPU, if the face number is too many, can causes the speed of service sharply to reduce, even can't move; Model face number too much, also can cause file size to increase, issue also can cause download time to increase on network.

(2) triangular topological relations of model is an equilateral triangle as far as possible, long strip type do not occur

When calling model or model of creation, the triangular facet that as far as possible guarantees model is an equilateral triangle, long strip type do not occur.This is because the face of strip is unfavorable for real-time rendering, phenomenons such as sawtooth, texture are fuzzy also can occur.

(3) when the object of performance elongate strip, the mode with pinup picture shows without model as far as possible

When setting up model, the object of elongate strip had better not be made model, as window frame, railing, fence etc. for the VRP scene.This is because the object of these elongated strip shaped only can increase the model quantity of current scene file; And also sawtooth and scintillation can appear when real-time rendering.Object for elongated stripe shape can utilize the mode of pinup picture to show as scene of game, and its effect exquisiteness, sense of reality very is also very strong.

(4) it is higher than the efficient that changes smart mould to create simple mould again

In the real work, it is generally fast than the speed of revising on the basis of a smart mould to create a simple mould again, recommends new as much as possible established model at this.As a sofa model that calls from model library, the face number of its handrail model is " 1310 ", and the face number of model that rebulids a same size specification is for " 204 ", and manufacture method is quite simple, speed is also very fast.

(5) quantity of model is not too many

If the model quantity in the scene brings a lot of troubles can for too much the operation of back, cure the quantity and the time of object as the meeting increase, reduce the speed of service etc., therefore, recommend the model quantity in the full scene to be controlled at 2000 with interior (according to the individual machines configuration).

(6) density of reasonable distributed model

The unreasonable speed of service to its back of the density distribution of model is influential, if the model density unevenness is even, can cause the speed of service sometimes fast and sometimes slow, therefore, and the model density of the earthquake disaster virtual scene that need reasonably distribute.

(7) model of identical material merges as far as possible; The many objects of remote model face number do not merge

In the earthquake disaster virtual scene, merge the identical model of material type to reduce the object number as far as possible, accelerate the load time and the speed of service of scene; Just it is not merged if the face number of this model is too much and standoff distance is far, otherwise can influence the speed of service of virtual scene yet.

(8) distance between maintenance model face and the face

In earthquake disaster virtual scene modeling process, the face and the distance between the face of all models are not too near.Make minimum spacing is two one thousandths of current scene out to out as far as possible.For example: when making indoor scene, distance is not less than 2mm between the face of object and the face; When making scene long (or wide) was the outdoor scene of 1km, distance was not less than 20cm between the face of object and the face.If paste too closely between the face of object and the face, when operation earthquake disaster scene, two hand-delivers can appear for the scintillation that occurs.

(9) for the moulding of complexity, can show as with pinup picture or outdoor scene photo and obtain the better effect and the speed of service more efficiently, in the earthquake disaster scene, can show the structure of complexity then by pinup picture with the model of Plant replace complex.As anaglyph on plant, ornament and the model etc.

Though Model Optimization is very important, the editor of material is very important too, because the use of material need combine with bake operation, dissimilar materials need be taked the different modes of curing.After the foundation of finishing model of place, promptly can be this model and add material.When if desired object being cured, material generally can only be set be: AdvancedLighting, Architectural, Lightscape Mtl, Standard type to LightingMap; When being figure and must using other materials, generally need this object cured and be CompleteMap.The pinup picture of object only allows to use: jpg, bmp, tga, png, these several forms of dds, do not support the pinup picture of extended formatting, as the pinup picture of tif, psd type.

The generation of damage model need be at different building structure, and we need consider following fabric structure:

Post and panel structure (4-5 kind)

Brick mix structure (5-6 kind)

Reinforced concrete structure (4-5 kind)

Frame structure (4-5 kind)

Light-duty and the heavy type structure (5-6 kind) of large common facility

For generating the damage model of different structure building, we need study fabric structure intensive analysis model, earthquake ground motion model, structural deterioration rule etc.

The fabric structure intensive analysis comprises:

The foundation of geometric mode

The foundation of geometric mode is the first step of structural strength analysis.In order to realize easy building destruction model, guarantee that model can be carried out fast, can use the geometric mode of simplification.

The selection of material parameter

Material parameter is also very important to structural strength analysis.Choosing of material parameter can be determined with reference to the relevant testing of materials and material manual data.

Earthquake ground motion model and failure criteria need be used for reference existing examples of many successful and experience.At home, the upright academician of the gift in token of gratitude with the principle of the existing earthquake resistant design code of China be defined as foundation, in conjunction with actual earthquake data and experience, proposed an experience determining method of estimating structural earthquake failure probability matrix, and provided the failure probability matrix of engineering structure under different earthquake earthquake intensity effect in view of the above by different designs earthquake intensity requirement design.Japanese plum hardwood and Li Jilong are judge index with the elongation of structure, have provided the computational methods of the seismic damage probability matrices of a kind of reinforced concrete structure, brick masonry structure building and single-storey factory building.Yin dives with structure reactance as judge index, has provided a kind of computational methods of structural earthquake failure probability matrix.

According to all kinds of buildings and infrastructure earthquake disaster damage model and secondary disaster performance model, utilize the virtual emulation dimensional Modeling Technology to set up the threedimensional model of virtual scene in the whole process of earthquake disaster.At the great earthquake of all previous generation, analyze each structure type in the disaster area, select typical house, according to destroying grade classification 5 grade standards: intact substantially, slight damage, moderate damage, heavy damage, breaking-up fully.Every kind is destroyed the corresponding different breakoff phenomenon of grade, as the position in crack and what, the degree that body of wall collapses etc., set up all kinds of buildings (timber structure, steel construction, xoncrete structure, brick structure and movable dwellings etc.) and infrastructure earthquake disaster respectively and destroy the threedimensional model of situation, the different buildings that the simulation macroseism causes destroy the different scenes of grade and the regularity of distribution spatially thereof with infrastructure 5 classes.The evaluation criteria of different destructiveness is as follows:

Substantially intact: the house supporting member is intact, and indivedual nonload bearing element slight damages do not add repairing and can continue to use.Allow the slight damage of nonload bearing element, for example the glass of window is by shatter, and the wall skin has minute crack, and chimney falls on the ground etc.

Slight damage: indivedual supporting member visible cracks, nonload bearing element has obvious crack, does not need to repair or repairs a little and can continue to use.General house allows body of wall at Men Jiao, window angle minute crack to be arranged, but the place that occurs is few, or the slight expansion in old crack, wall skin, many cracks of having plastered.To frame house, division wall crack, even wall skin not only, brick division wall is the crack also, even indivedual wall slump.There is destruction in the skylight of industrial premises, and the small part enclosure wall destroys slump.

Moderate damage: slight crack appears in most supporting members, and part has obvious crack, and indivedual nonload bearing elements destroy serious, need general repair.The wall top is developed in the crack, body of wall many places of masonry structure from the door and window angle, in corner, the end in house obvious crack is arranged, even come off individually, and the classroom of school is because the standard width of a room in an old-style house is big, and the crack is obvious.The column majority of reinforced concrete building has the crack, and the crack that has is obvious, but does not injure reinforcing bar, and wall crazing is serious, even part falls brick, the division wall brick that partly ftractures, fitting-up component damage many places.

Heavy damage: most supporting member heavy damages, or have the part to collapse, and needing overhaul, difficulty is repaired in indivedual houses.The body of wall many places shortcake of masonry structure splits, the angle slump of part room, and many places scatter ceiling and body of wall destroys the fragment residue that drops, and house over half approximately can use.Concerning reinforced concrete building, house foundation is intact, can enter inspection, the fragmentation of capital box beam-ends concrete, even expose reinforcing bar, and the division wall shortcake splits, and the residue fragment that is scattered everywhere must overhaul.To the house, villages and small towns, the gallows timber of lake dwelling is crooked, and the enclosure wall major part is collapsed, and other house parts are fallen two to him such as three.

Damage: most supporting member heavy damages, structure are on the brink of collapse or have smashed up, have not had and can repair.There has not been reserve value, the reconstruction of need dismantling.Though the house that has does not cave in, load-carrying members are split as the body of wall shortcake of brick house, are on the verge of to collapse.

Under the geological process, building may collapse in a different manner, and can form some small spaces and unapproachable zone.Therefore we will classify to the building collapsing pattern of dissimilar earthquakes and the space of generation thereof.

According to a large amount of earthquake data, the building of common wood and brick trimmer structure generally has the feature of collapsing of five kinds of forms:

1, stacked collapsing;

2, tilting and collapsing of support arranged

3, unsupported tilting and collapsing;

4, " V " shape is collapsed;

5, " A " shape is collapsed

The three-dimensional modeling at the earthquake disaster scene of simulation mainly adopts technology such as model is cut apart, texture mapping.Virtual scene is by two kinds of approach structure: based on two kinds of the method for model and IBR (based on the drafting of image) methods.The Geometric Modeling Method that simulated earthquake disaster virtual scene uses mainly adopts polygon (Polygon) modeling, non-homogeneous B spline curve modeling (NURBS), subdivision curved surface technology modeling (Subdivision Surface).

Scene rendering

At the simulation virtual reality scenario, can use many kinds of rendering intents of three-dimensional animation software Maya or 3dsMax, comprise that interactive phase chip level plays up that (IPR), software are played up, video is played up, hardware is played up etc.In earthquake disaster virtual scene manufacturing process, for strengthening the sense of reality, we use the senior illumination of 3dsMax to play up.

For model has added after material and the light, promptly available 3dsMax acquiescence renderer Scanline plays up, and also can use senior illumination to play up in 3dsMax.Because good and bad the depending on of the live effect of scene in VRP, therefore play up quality quality and the wrong live effect of scene in VRP that how much all will influence in the modeling of 3dsMax and the performance of playing up.Use senior illumination to play up and to produce global illumination and real diffuse effect; But application standard light simulation global illumination, it is also fine to use Scanline to play up its effect.

Scene is cured

The pinup picture technology of curing also is Render To Textures, briefly is exactly a kind of max illumination information to be played up the mode of pinup picture, and the pinup picture after then this being cured pastes the technology of going in the scene of getting back to again.Like this illumination information has become pinup picture, does not need CPU to go time-consuming calculating again, as long as common pinup picture is just passable, so speed is exceedingly fast.At the earthquake disaster scene, can use the technology of curing to realize time-consuming luminous energy is transmitted the practicality of computing application in the animation, the jitter phenomenon of animation when saving the luminous energy transmission simultaneously.

During realization, curing is exactly that the shadow of the object among the 3dsMAX is taken among the VRP in the mode of pinup picture, in the hope of the sense of reality; On the contrary, if object is not cured and directly imports among the VRP, its effect is false.The instrument that cures in 3dsMax is " Rendering|Render To Texture " order.After the scene rendering effect among the 3dsMax is pleased oneself, can carry out bake operation to current scene.

It should be noted that before curing scene, must carry out following several operations:

(1) rendering effect figure sees lighting effects

Before curing, we must play up the scene all angles earlier, by the design sketch played up judge in the scene lighting effects how? if rendering effect is bad, its effect of shadow that cures in the scene of back can be not desirable yet.

(2) change duplication of name model

Model maps name after curing is made up of " model name+type of roast (Completemap or Lightingmap)+.tga ", so the model name in early stage can not have duplication of name.

(3) check phenomenons such as the broken face of model, heavy face

The operation that also has a particular importance before curing is exactly that all models in the scene are imported in the VRP editing machine, checks by roaming in scene whether the model in the scene exists brokenly phenomenons such as face, heavy face; If just find these problems after curing, need cure again, import again, to such an extent as to workload increases, operating efficiency reduces.

Model is derived

At 3 d modeling software, after modelling is finished among the 3dsmax, need derive, so that proceed later stage special efficacy and interactive editor in the virtual reality editing machine with calling in to model.

After having created three-dimensional scenic, no matter be static model, still dynamic model all will be derived operation to it by [derivation] button that Max-for-VRP derives in the Insertion panel.

When carrying out the large scene making, the later stage can be carried out batch cure to the VR scene usually, derives operation in batches, and at this moment, we just need derive the static models that part has been cured.

When making little scene, the static models of whole VR scene all can be cured finish after, property whole VR scene is derived again.

The VRP editing machine is supported the importing of part animation among the 3dsMax, and the user can directly create the model animation in 3dsMax, directly obtain a lively model animation effect in the VRP editing machine by importing to then.Can be directly " rigid body animations " such as " path animation ", " the precise parameters key-frame animation " created in the 3dsMax, " rigid body animation ", " Reactor animations " be imported in the VRP editing machine; Also " the beformable body animations " such as model points metamorphic animations of using modifiers making such as " Noise (ripple of making an uproar) ", " PathDeform (WSM) (Path Deform (world space)) " in the 3dsMax directly can be imported in the VRP editing machine.

Set up what comes into a driver's and generate resources bank

Based on the research of earthquake emergency basic database, the what comes into a driver's of setting up the standard criterion form generates resources bank, and the rehearsal platform supplies a model, data for the earthquake emergency rescue of subsequent development is disposed, and provides resource service as the quick generation of earthquake three-dimensional what comes into a driver's.What comes into a driver's generates resources bank and comprises earthquake case database, earthquake intensity database, building intensity data storehouse, secondary disaster database.

1 earthquake case database

By the earthquake disaster order of severity, the earthquake disaster incident is divided into great especially earthquake, great earthquake disaster, larger earthquake disaster and general four ranks of earthquake disaster.To earthquake emergency response and commanding and decision-making status investigation and case in the domestic earthquake relief headquarters at different levels, emergency response plan scenario for destructive earthquakes at different levels, domestic and international all previous earthquake field emergency disposal case warehouse-in.Analyze the disposal method of all types of earthquake disaster characteristics under different geographical environments and the social environment, emergent demand, emergency disposal action base program, elementary tactics, chance event and work out standards of grading.

Each other earthquake case disaster characteristic of level according to time, earthquake magnitude, longitude and latitude, the depth of focus, epicentral location, economy/population, death, injured, damage house, economic loss, local customs classification.

2 earthquake intensity model libraries

Put all previous domestic and international earthquake case in order, on disaster characteristic analysis basis, destruction scene or environment to dissimilar earthquakes are classified, the earthquake that foundation meets the rehearsal needs takes place to show model with causing the calamity process, comprising: earthquake epicenter, the depth of focus, propagation of seismic wave demonstrating model data.

3 building strength model storehouses

On the basis of earthquake disaster forecast analysis, with reference to building state analysis model, intensity at various structure types (comprising soil (stone) timber structure, post and panel structure, brick mix structure, reinforced concrete frame structure) building and infrastructure is carried out data analysis, stores in the mode of database.The building of varying strength or infrastructure be can call during operation and the breaking-up fully that causes because of earthquake, heavy damage, moderate damage, slight damage, intact substantially different scenes simulated.Can design effect after the earthquake of meticulous BUILDINGS MODELS by the building editing machine, to building the various attributes that cave in are set, preestablish destructive process that all kinds of buildings or infrastructure is subjected in different factors and building and be subjected to various rank earthquakes and will become which kind of shake back effect.Call building intensity data storehouse by earthquake disaster scene editing machine, make up the virtual earthquake disaster site environment of the common structure of various buildings.Finally, trigger the building collapsing incident, thereby be created on following building destruction scene that causes different conditions of earthquake motion effect according to the demand of rehearsal.

4 secondary disaster model libraries

To issuable secondary disaster (blast, fire, floods, mud-rock flow, poisonous and harmful substance etc.) data loading after the earthquake, can select or the stack secondary disaster by the demand of rehearsal, thereby the extent of damage of disaster environment after the control earthquake is controlled the complexity that the trainee drills.

Complicated secondary disaster effect can applying three-dimensional animation software Maya or 3DMAX software application dynamics cartoon technique simulate secondary disaster, generate the animation effect model.And need the secondary disaster of generation in real time, and leak (dense smoke or fog are represented) as blast, fire, poisonous and harmful substance, the particle effect of directly using among the VR-Platform generates special efficacy.

5 character model libraries

The character model library is used to store the virtual layabout in each department, the virtual rescue personnel in various countries etc.Character is made up of the skeleton cartoon personage.Can directly in 3dsMax, create the model animation, import to character editing machine then based on the VRP editing machine.And the character editing machine can be set the athletic performance of many covers and overlap motion path more the role.The role can have the dialog script of self, will read dialog script when exchanging in real time and is presented on the screen when producing with the user, as the foundation of judging information.

Can in database, store the simulated scenario and and the various model of various earthquake disasters by the way.Server can be replied corresponding model of place and each other earthquake grade situation of level according to the request from each client.

Earthquake grade that can provide by server between each client and corresponding scenario simulation data are carried out operation accordingly.As prepare various medical treatment product, dispatch varieties of food items, engineering truck etc.

Also can carry out multiple interaction between the server and client side, reply the variety of issue that server proposes, after server is received, judge whether correctly as client, if incorrect, display result etc.

Because the model of database storage all belongs to model of place, spatial content takies higher, these materials comprise earthquake generation shooting to scene, earthquake rescue manoeuvre data, the material data in the exam pool, the data volume of these data is bigger, can't on the website, play in real time, therefore system adopts stream media technology, realizes the remote live issue of video data.

Streaming Media (Streaming Media) is a kind of emerging network transmission technology, sequentially transmit and play the consecutive hours base data stream of content of multimedia such as video/audio on the internet in real time, stream media technology comprises fields such as stream medium data collection, video/audio encoding and decoding, storage, transmission, broadcast.

In general, stream comprises two kinds of implications, and sensu lato stream is to make Voice ﹠ Video form the general name of a series of technology, method and the agreement of stable and continuous transport stream and playback stream, and we are referred to as stream media system traditionally; And sense stricto stream is a kind of media formats for traditional download-playback (Download-Playback) mode, it can obtain continuous media streams such as Voice ﹠ Video from Internet, the client can receive the limit broadcast by edge joint, and time delay is significantly reduced.

Upload playing multimedia information at network and mainly contain dual mode: download and stream transmission.Downloading mode is traditional transmission means, finger is before playing, the user's download multimedia file is to local, usually this class file capacity is bigger, according to present network bandwidth condition, need the long period, and the memory capacity of this locality is also had certain requirement, this has just limited the use of low memory capacity equipment such as PDA.Stream transmission then provides multimedia messages to the user by server in real time, when adopting this mode, the user needn't wait until that whole file is all downloaded and finish, and only need can play through the startup time delay of seconds or tens of seconds, afterwards, the client edge joint is received the broadcast of data limit.Compare with downloading mode, stream transmission has significant advantage: shortened widely on the one hand and started time-delay, also reduced the demand to buffer memory capacity simultaneously; On the other hand, can realize the real-time Data Transmission of the form of broadcasting live again, modes such as this download can't realize, help to protect the copyright of multi-medium data simultaneously.

For ease of realizing above-mentioned function, server of the present utility model adopts the internal structure of many interfaces, and concrete structure can comprise referring to Fig. 3:

Central processing unit (CPU) and digital signal processor (DSP), wherein, the synchronous DRAM SDRAM of CPU and DSP, flash memory FLASH, video coding/decoding module, audio coding decoding module, Ethernet interface chip and serial ports (RS232 and RS485) interface chip, wherein DSP is connected with CPU by pci bus; The synchronous DRAM of CPU and DSP links to each other with DSP with CPU respectively; Flash memory, audio coding decoding module, Ethernet interface chip and serial interface chip link to each other with CPU; Video coding/decoding module, audio coding/decoding module link to each other with DSP.

Above-mentioned SDRAM, FLASH can be used for the data of storage chip, and CPU, DSP can handle the visit of each client at any time, and data of database is provided.

Above-mentioned server internal structure can effectively provide streaming media service by router to each client.To transmit the information of earthquake as early as possible, make the user of each client that the earthquake rescue is provided as early as possible.

Describe system of the present utility model above in detail, system of the present invention can effectively realize the simulation of earthquake disaster, and to the comprehensive detection of each responding agencies; In addition, comprehensively relatively this system also have following advantage:

The first, branch degrees of detail scene modeling: the degree true to nature at earthquake disaster virtual environment scene is one of decisive factor of decision simulated training effect.Yet, it also is the area that the places of cultural interest are concentrated the most that earthquake causes the area of disastrous consequence, it makes the well-regulated places of cultural interest changed beyond recognition immediately, become unordered chaotic scene, it is extremely complicated to destory the scene, and piling up mutually, cover, interting and involving between the on-the-spot irregular entity of eaerthquake damage, its structure is extremely complicated.Thereby it is infeasible that each part of earthquake field is all carried out detailed modeling.We support the three-dimensional scenic modeling with three layers of different degrees of detail model scheme for this reason.These three layers of degrees of detail models are respectively: macroscopical disaster area model, region of search model, operation field model.The corresponding different training mission of different degrees of detail models.

Second, the real-time collapse Simulation of building: can preestablish destructive process and result that all kinds of buildings or infrastructure are subjected in different factors (earthquake magnitude, influence field etc.), script according to training triggers automatically then, thereby is created on following building destruction scene that causes different conditions of earthquake motion effect.The built-in physical engine of system, building is according to certain physical rule collapse Simulation, and the law of conservation of momentum is followed in collision between the piece of ruins.Can simulate different buildings that macroseism causes and infrastructure breaking-up fully, heavy damage, moderate damage, slight damage, intact substantially different scenes and the regularity of distribution spatially thereof.

The 3rd, system extension: drillmaster or teaching notes personnel can oneself set up and visual earthquake disaster scene by earthquake disaster scene editing machine.Disaster incident scene is stored with the standard criterion form.Aspects such as the needed disaster scene of earthquake virtual emulation rescue training system, earthquake model, rescue outfit, training program and evaluation criteria can both allow the user expand voluntarily in the future.Can be according to different training requirements, the virtual disaster scene of Fast Reconstruction various ways repeatedly, ease for use is good, and is easy to maintenance.

For the system that is set forth among each embodiment of the utility model, all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.

Claims (2)

1. an earthquake disaster rescue analogue system is characterized in that, comprising:

Server, circuit connect router and database, receive the visit of each client by router, reply the sympathetic earthquakes disaster analogue data in the database, and the visit reminder-data of himself;

All kinds of earthquake simulation data of storage in the described database;

Described database connects the I/O equipment that is used to import all kinds of earthquake disaster analogue datas;

Router between circuit Connection Service device and each client, and provides routing forwarding;

Client is shown to the user with user's input and with the data that server provides, and circuit connects described router.

2. system according to claim 1 is characterized in that, described server comprises:

Central processing unit and digital signal processor, wherein, the synchronous DRAM of central processing unit and digital signal processor, flash memory, video coding/decoding module, audio coding decoding module, Ethernet interface chip and serial interface wherein are connected by pci bus between central processing unit and the digital signal processor; Synchronous DRAM links to each other with digital signal processor with central processing unit; Flash memory, audio coding decoding module, Ethernet interface chip and serial interface link to each other with central processing unit; Video coding/decoding module, audio coding/decoding module link to each other with digital signal processor.

Images