CN103246765A - Developing method for equipping virtual training platform - Google Patents
Developing method for equipping virtual training platform Download PDFInfo
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Abstract
Disclosed is a developing method for equipping a virtual training platform. The virtual training platform is composed of subsystems of configuration management, virtual equipment management, virtual scene management, embedded simulation training software, single member interactive operation training, post co-training, teaching demonstration, trainees database management, training evaluation management, training information query and training monitoring and the like. The developing method comprises a prototype of 'object-behavior-condition-response-state', a double mechanism of 'task-action', a lightweight sharing scenario architecture, an appearance and mechanism combined equipment modeling, complicated model layered planning control and scene optimization, a weight accumulation based virtual operating analysis evaluation model and interactive design of role/scene/equipment/software and is a solution scheme for researching and developing a three-dimensional engine, a database engine and a network engine. According to the developing method, trainees can be co-trained in single or in groups and can learn independently or attend a guided training, subjects can be configured and quantitative assessment can be evaluated, and requirement of equipment operation training is met.
Description
Technical field
What the present invention relates to is a kind of development approach of equipping the virtual training platform, belongs to the Computer Simulation applied technical field.
Background technology
Virtual reality and emulation technology have entered networking, architecture developing stage, and the virtual reality industry has presented development in pluralism trend, and these make the distributed interactive simulation system obtain widespread use aspect virtual training.The present invention has made up a kind of general development approach of equipping the virtual training plateform system, be successfully applied to the network platform of the real-time, interactive simulation training of many types of change system, its development approach can be used for reference and be used in the virtual training process of the Large Complex Equipment system in fields such as military affairs, medical science, Aeronautics and Astronautics.
Summary of the invention
The present invention relates to the development approach of a kind of equipment virtual training plateform system (hereinafter to be referred as plateform system), purpose is based on virtual reality technology development real-time, interactive artificial network application platform, training is used in the operation that is used for equipment, make different post operation hands can control the virtual equipment object in Same Scene, technical ability is used in the operation that obtains equipment by virtual environment.
As shown in Figure 1, plateform system software is checked and rated management system, training information inquiry system, training supervisory system etc. and is formed by configuration management system, virtual equipment management system, virtual scene management system, embedded simulated training software systems, single Yuan interactive training system, post collaborative behaviour exercising system, teaching demonstration system, participant data base management system (DBMS), training based on the hardware structure exploitation of the C/S model of LAN (Local Area Network).The base layer support database comprises virtual equipment database, trainer's database, training examination database, training instant messages database etc.Plateform system provides virtual scene design software Editor and uses software Viewer, and Editor is used for the import system of Model model, makes virtual scene and virtual equipment, edits script in the scene, sets training flow nodes etc.; Viewer both can independent browsing virtual scene and virtual equipment, also can the dynamic link library form provide the system integration.Plateform system software mainly comprises following 24 dynamic link modules.
(01) UserLogging---user registration/cancel is provided, lands/withdraw from, the user data library management is supported.
(02) Core.dll---plateform system core component, with " object-behavior-condition-response-state " prototype all role/model states are described, mutual between the control role, with virtual scene mutual, with virtual equipment mutual, the plastic flow journey is mutual, mutual/roam mode switching etc.
(03) VREventsTaskAction---provide the script of " task-action (Task-Action) " to resolve support.
(04) VREventsTaskGroup---the management support of " task (group) Task " is provided.
(05) VREventsActionGroup---the management support of " action (group) Action " is provided.
(06) ThreadManagement---for the mutual coordinated management of " task-action " provides multithreading to play up frame synchronization mechanism.
(07) CSGuiInterface---provide server end and user side public graphical interfaces support.
(08) LabWindowsCVI_LabView---the embedded software formula support of NI company Virtual Instrument Development environment is provided.
(09) 3DViewerLibEngine---the support to the d engine of multiple users share virtual scene and virtual equipment is provided.
(10) 3DViewerAnimations---matrix animation, texture animation, joint animation, skeleton cartoon, path animation, beformable body animation, particle animation, blanking animation that three-dimensional model is provided etc. preset animation or animation group Broadcast Control, record support.
(11) 3DViewerFramework---the individual packages framework support of d engine based on .net, network engine, database engine is provided.
(12) 3DViewerAssemblyManagement---provide the level of virtual equipment assembling collection to resolve support.
(13) 3DViewControl---provide self-defined d engine control to support.
(14) DBSQLConfigurations---ADO encapsulation, training configuration management support to system database are provided under the SQLServer environment.
(15) DBSafeAccessEngine---data security visit and administrative mechanism support are provided.
(16) Web3DCommunicationsLibEngine---the network engine support is provided.
(17) Web3DSoundEfectLib---3-D audio and voice-over-net support are provided.
(18) Web3DTrainingMonitor---provide the training process monitoring to support.
(19) UserDialogManagement---provide that user session is resolved, recorded, the playback support.
(20) TrainingAHP---provide based on the AHP level fuzzy analysis assessment of " weight summation " and support.
(21) TrainingBalloonTip---provide instant training instant messages prompting to support.
(22) TrainingReCall---system's playback support is provided.
(23) TrainingSceneDataSet---the expansion support of user-defined virtual scene and virtual equipment model is provided.
(24) DBQueryDesigner---the support of self-defined virtual training flow scheme design is provided.
The plateform system major function is as follows.
(1) provides virtual training equipment and the software consistent with reality equipment function, real-time simulation is carried out in a series of decision-makings and action that operating personnel make in operating process, display effect and operating experience true to nature is provided.
(2) set up virtual equipment and virtual scene, the model fine degree reaches operation training and working service demand, and virtual scene/equipment/software model that the user both can the usage platform system provides also can be developed self-defined virtual scene/equipment/software.
(3) support equipment operation user of service's autonomous learning, single virtual interacting behaviour instruction and the training of network multi-person synergy, collaboration objects can be the also object of system virtualization of trainee.
(4) provide freely browse with bootmode under virtual interacting formula study, also can limit operation steps and carry out training and examination.
(5) dispose the training subject of various difficulty as required, quantize training standard, operating personnel are carried out comprehensive training.
(6) have monitoring management function to training process, plateform system can real time record training instant messages, utilizes the training appraisal system that the operational quality of operator is carried out comprehensive assessment.
Description of drawings
Accompanying drawing 1 is the virtual training plateform system software and hardware architecture synoptic diagram of invention.
Accompanying drawing 2 is the virtual interacting task task flow table synoptic diagram of invention.
Accompanying drawing 3 is the operational motion Action model synoptic diagram of invention.
Accompanying drawing 4 is the synchronous synoptic diagram of the operational motion Action object of invention.
Accompanying drawing 5 is played up the frame synchronization mechanism synoptic diagram for the multithreading of invention.
Embodiment
[0008] be that prerequisite is equipped the virtual training platform development with technical scheme of the present invention, can accomplish to imitate " as ", mechanism model "True", assessment effect " credible ".Below in conjunction with the test result of description of drawings detailed embodiment of the present invention, performance history and goal systems performance, but protection scope of the present invention is not limited to following embodiment.
As everyone knows, for the change system of complexity designs light-weighted multiple users share virtual scene framework, difficult point is the three-dimensional space data tissue.Plateform system mainly adopts " low mould high paste ", cure in advance technology such as playing up, control model face number, the collision detection based on bounding box, level of detail, how much subdivisions of scene, complex model optimization carries out the three-dimensional space data tissue, comprise virtual scene model, virtual equipment model and embedded simulation softward three class models by foundation, realized that the digitizing perfection of scene, equipment, plastic flow journey is integrated.
In order to describe the relation between each object in the virtual training system and all training key elements, below provide the vector statement of " object-behavior-condition-response-state " virtual training prototype, for providing direct interactive means to the choosing of object in the scene, operation and motion control.
This is a kind of semantic vector statement method of expanding, and wherein, interactive object can be virtual equipment complete machine, subsystem, assembly or parts, also can be type of interaction, interactive mode, mutual prompting, validity decision and operation note, operational feedback.Behavior then mainly is its Attended Operation action, as movement, rotation, the sled of instrument, and the click of embedded testing software flow button, help type etc. is used in the conversion of training flow process.After condition judgment, satisfying condition then starts the interactive object behavior act: i.e. the various animations and the special efficacy that preset of Play System, release then changes its status indication, handles otherwise carry out corresponding maloperation.Be mapped as the basis with windows messaging system break/recovery response mechanism and information/helping prompt system are provided.Carry out system state diagram based on this and describe, be convenient to communication between figure art designing and the programmer and the through engineering approaches management of development project.
In general sense, for the user: the role can simply be interpreted as the incarnation in virtual scene, and no matter it is user's scapegoat or NPC; For server: the role can be understood as the agency of all user objects, except scapegoat and NPC, all 3D model and database objects of also comprising management in the system are because the user who has may only click button, a simple keyboard carriage return operation or only use a simple tool.Under concrete virtual scene environment, the not necessarily personage that virtual role refers to also can be the control in 3D solid such as car and the software interface.
Plateform system adopts " object-behavior-condition-response-state " virtual training prototype to describe role state, in conjunction with real dress operating process, training is decomposed into simply " task-action (Task-Action) " double-deck mechanism and manages.Be about to certain section's purpose operation training and carry out the bilayer decomposition: at first subject is decomposed into Task1, Task2 ... M such as TaskM " task ", the corresponding scene of each Task is decomposed into Action1 with each Taski, Action2 again ... N such as ActionN " action "; Secondly, according to virtual task Task flow table (seeing accompanying drawing 2), planned Task corresponding virtual training scene; Again, at each virtual training scene of planning, make up pseudo operation step Action(and see accompanying drawing 3), default synchronization mechanism (seeing accompanying drawing 4); At last, adopt multithreading to play up frame synchronization mechanism and realize training (seeing accompanying drawing 5) synchronously.
Plateform system will be divided into following five classes alternately: mutual between the role, with virtual scene mutual, with virtual equipment mutual, the plastic flow journey is mutual, mutual/roam mode is switched.Just refer to alternately between the user in each post to finish by the inter-sync of voice-over-net group the synchronous prompting etc. of actual conversation and operation information between the role; Load with the mutual scene that just refers to that server and registered user login of virtual scene, switch, synchronously, multiple users share virtual scene and virtual equipment synchronously and realized by network engine alternately; With being described with the physical motion of model animation to equipment with regard to referring to alternately of virtual equipment, provide the multimedia of operation to experience animation types such as support matrix animation, texture animation, joint animation, skeleton cartoon, path animation, beformable body animation, particle animation, blanking animation; The plastic flow journey just refers to that alternately the virtual training system can finish physical operations intuitively by simulations such as various animations and special efficacys, such as just can the embedded software pattern carrying out the training of plastic flow journey for automatization test system.
Alternately/the roam mode switching.After general authorized registered user's login system, default scene mode is roam mode, the user uses free camera, be erected at user's head eye position, the user can oneself roam to operating post, namely do not change the type of free camera, adjust parameters such as camera perspective, until satisfying the operation requirement; Also can arrive at operating post by shortcut one key, namely switch to the impact point camera.
The modeling of plateform system virtual equipment comprises virtual equipment appearance modeling and modelling by mechanism.Display model can be divided into sense organ model and geometry modeling two parts.The sense organ model will accomplish to have seen that color material texture mapping is consistent with real dress; The full-scale 1:1 modeling of geometry; Adopt " tree control " description that the complex equipment model is carried out hierarchical planning; Adopt " hierarchical structure " to describe mechanism model; The modeling initial period is that the opposite number is controlled, otherwise can cause the d engine performance low.
Plateform system adopts embedded simulated training software, has developed the interface based on LabWindowsCVI or LabView virtual instrument, and " immersion operation " and " isolated soft operation " two kinds of working methods are provided." immersion operation " is exactly to utilize virtual equipment display screen flash demo running software interface, is used for being familiar with the demonstration of equipment operating process; " isolated soft operation " is exactly to utilize subwindow technology isolated operation simulated training software, and the technology that is used for is prepared the mutual of model in flow process and the scene, and software interface and digital watch show synchronously, and be mutual with pertinent instruments equipment animation in the scene.Click the computer screen of equipment in the scene, namely eject the software interface window that this equipment is embedded in, can simulate main interface and the flow process of each device software.
Plateform system provides three class virtual scenes: the first kind is that true air-sea mountain region is arranged is the virtual scene of background; Second class is that technology is prepared the worker-house indoor setting; The 3rd class is shelter structure scene, and the user also can develop self-defined scene as required.
Take all factors into consideration convenience, 3 d rendering engine performance, the performance of physical engine, the compatibility of database engine and the processing power of mass data of visual development, project management and application, plateform system has been set up light-weighted d engine, and merge the DirectSound of Microsoft, realized 3-D audio and voice-over-net with software form.
The plateform system data base management system (DBMS) is developed based on SQLServer.The up-to-date data access technology ADO of Microsoft is adopted in database access, carry out OO encapsulation to connecting ADO classes such as class, data access class, generic command class, set up the database engine of plateform system, effectively the virtual scene database of management platform system, virtual equipment database, customer data base, training information database.
Plateform system adopts C/S architecture network engine, adopts the distributed system management strategy based on the role, finish that virtual scene generates, system's operation control, Task task management, Action alternately collaborative, train function such as assessment.
Plateform system main integrated use AHP analytical hierarchy process and fuzzy mathematics method, determine the index weights of each " task-action ", comprehensive valid function information, operate the time spent, information such as the number of times of seeking help, maloperation, adopt " weight summation " to provide training examination achievement.This method reduces the drawback that the people gets sth into one's head and brings with people's subjective judgement quantity formal representation and processing as far as possible, and evaluation result is credible.
It is simultaneously online below to provide one group of 16 people, the plateform system The performance test results.
(1) plateform system capacity: 1 of server, user side quantity is subjected to network bandwidth limitations, and the about 1.3 ~ 1.5Mbps of single customer flow under the 100Mpbs network environment, allows 50 user sides at most.
(2) system setup time: after peripherals was ready to, server and each user end computer opened electricity, total duration≤1min that operating system loads, the system of finishing lands, begins to train.
(3) operation usability: system's averaging network response time 0.042s, network delay are 0.021s; Pseudo operation response time≤0.2Sec.
(4) graphics performance: single scene face is several below 500,000, frame rate 〉=28 frame/seconds, frame updating flicker free.
Test environment is:
(1) server end: CPU is 4 nuclear 2.8GHz, internal memory 4G, video card Geforce7300GT, operating system Windows2003Server, database SQL Server2008;
(2) user side: CPU is 4 nuclear 2.4GHz, internal memory 2G, video card GeforceFX5200, operating system Windows XP;
(3) network environment: GDH-240810/100Mbps double speed hub, Realtak adapts to network interface card fast.
Claims (5)
1. equip virtual training platform development method for one kind, it is characterized in that: the virtual training platform of invention is made up of configuration management system, virtual equipment management system, virtual scene management system, embedded simulated training software systems, single Yuan mutual behaviour's exercising system, post collaborative behaviour exercising system, teaching demonstration system, participant data base management system (DBMS), training examination management system, training information inquiry system, training supervisory system on the function based on the hardware structure of C/S model; The base layer support database comprises virtual equipment database, trainer's database, training examination database, training instant messages database; Software systems are by UserLogging, Core, VREventsTaskAction, VREventsTaskGroup, VREventsActionGroup, ThreadManagement, CSGuiInterface, LabWindowsCVI_LabView, 3DViewerLibEngine, 3DViewerAnimations, 3DViewerFramework, 3DViewerAssemblyManagement, 3DViewControl, DBSQLConfigurations, DBSafeAccessEngine, Web3DCommunicationsLibEngine, Web3DSoundEfectLib, Web3DTrainingMonitor, UserDialogManagement, TrainingAHP, TrainingBalloonTip, TrainingReCall, TrainingSceneDataSet, 24 main dynamic link modules such as DBQueryDesigner are formed.
2. equipment virtual training platform development method according to claim 1 is characterized in that: the goal systems according to this method exploitation possesses following function: but the emulation of training process Real-time modeling set, satisfy equipment operation training and working service demand, both can the also multi-person synergy training of single autonomous learning, both can freely browse and also can limit step enforcement and aiming drill, both can dispose arbitrarily the training subject of various difficulty and also can quantize training standard and comprehensively examine assessment.
3. equipment virtual training platform development method according to claim 1 is characterized in that: describe modeling method with virtual scene model, virtual equipment model and embedded simulated training software three class models; Outward appearance modeling and the modelling by mechanism of virtual equipment model are separated, adopt " tree control " hierarchical planning complex management virtual equipment model, and adopt " hierarchical structure " to describe mechanism model; Embedded simulated training software provides " immersion operation " and " isolated soft operation " two kinds of working methods.
4. equipment virtual training platform development method according to claim 1, it is characterized in that: plateform system adopts " object-behavior-condition-response-state " prototype to describe role state, in conjunction with real dress operating process, training is decomposed into simply " task-action (Task-Action) " double-deck mechanism and manages, make things convenient for the collection of training information and examination to analyze; When designing alternately, mutual with being divided into alternately between the role, with virtual scene mutual, with virtual equipment mutual, the plastic flow journey is mutual, mutual/five kinds of type of interaction such as roam mode switching; Plateform system provides system's d engine, 3-D audio and voice-over-net, database engine, network engine and based on the AHP level fuzzy analysis evaluation module of " weight summation ".
5. according to claim 1,2,3 and 4 described equipment virtual training platform development methods, be further characterized in that: utilize the performance of the target platform system of this method exploitation to reach: under the 100Mpbs network environment, plateform system user side capacity is 50 users; Setup time≤the 1min of system; Averaging network response time 0.042s, network delay are 0.021s; Pseudo operation response time≤0.2Sec; Single scene face is several below 500,000, and graphics performance reaches frame rate 〉=28 frame/seconds.
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| CN105336241A (en) * | 2015-12-08 | 2016-02-17 | 上海电机学院 | Dangerous situation survival simulation training system and establishment method thereof |
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| CN111968244B (en) * | 2020-06-30 | 2024-05-10 | 国网河北省电力有限公司培训中心 | Virtual construction method, device, system, terminal and storage medium for power equipment |
| CN112561752A (en) * | 2020-12-22 | 2021-03-26 | 广东利元亨智能装备股份有限公司 | Industrial equipment operation assessment system, data processing method, device and storage medium |
| CN113608822A (en) * | 2021-06-25 | 2021-11-05 | 天津津航计算技术研究所 | Double-layer decoupling terminal simulator |
| CN113608822B (en) * | 2021-06-25 | 2024-04-26 | 天津津航计算技术研究所 | Double-layer decoupling terminal simulator |
| CN114285680A (en) * | 2021-12-21 | 2022-04-05 | 北京永信至诚科技股份有限公司 | Team cooperative communication method and system applied to network target range |
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Application publication date: 20130814 |