CN112667072A

CN112667072A - Virtual system and method for training development of professional behavior habits of college students

Info

Publication number: CN112667072A
Application number: CN202011518551.9A
Authority: CN
Inventors: 蒋双庆; 刘勇; 崔辉; 石明忱; 王佳欣
Original assignee: Heilongjiang Agricultural Engineering Vocational College
Current assignee: Heilongjiang Agricultural Engineering Vocational College
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-04-16

Abstract

The invention relates to a virtual system and a virtual method for training development of university student professional behavior habits, and aims to solve the problem that the development of the university student professional behavior habits is not rationalized and a formed training system is not available at present. Loading a main scene by using Unity3D, and starting by including a global manager in the main scene; the system management unit is used for integrating the scattered functional systems, and the global control module processes and arranges various overall information to promote the overall information interaction of the system; and finally, exchanging the data of the level and the scene in the system by the level control unit to realize the training of the professional behavior habits of the university students.

Description

Virtual system and method for training development of professional behavior habits of college students

Technical Field

The invention relates to a virtual system and a virtual method for training university student professional behavior habits, in particular to a system and a method for training university student post front behavior and training professional basic ability, and belongs to the field of virtual reality technology application.

Background

A three-dimensional virtual system constructed based on a virtual reality technology and a three-dimensional modeling technology examines the occupational quality of students from a three-dimensional view angle, and allows remote visitors to visit the system independently and realize information inquiry and local teaching observation. Compared with the traditional assessment method, the three-dimensional virtual campus brings people with more real campus experience and humanized remote interaction.

The research of our country on the virtual reality technology starts in the early 90 s of the 20 th century, which is far from the partially developed countries. With the rapid development of a series of technologies such as computer graphics, many organizations have been developed and applied to virtual reality technology in China, and have achieved relatively fruitful results. As the earliest research unit for researching VR in China at home, the Beijing aerospace university has distributed virtual environment in a computer virtual implementation and visualization new technology research room, the research room can provide data for a three-dimensional dynamic database in real time, can perform simulated environment demonstration through virtual reality, and provides possibility for training pilots by using a virtual reality environment system. In addition, the research room has achieved great achievement in aspects such as hardware development of visual interfaces in virtual reality environments, development and implementation of algorithms, network design of distributed virtual environments and the like. The intelligent manufacturing and control research institute of the university of wuhan theory achieves the results in the aspects of virtual assembly, rapid product forming and aspects, and the results are realized by applying the virtual reality technology to the field of mechanical virtual manufacturing. The CAD & CG national key laboratory of the university of gurgle develops a desktop type system for roaming the virtual building environment in real time based on the virtual reality technology. The increasing development and maturity of virtual reality technology has led to the wider and wider application of virtual reality environments in simulation and testing of various industries. The simulation mode can greatly reduce the economic cost generated by using the real environment to perform the equipment drilling, and the safety of the simulation mode is much higher than that of the equipment drilling through the real environment, so that the virtual reality technology can certainly become the future development direction of the related industries in the fields of manufacturing the virtual environment and realizing the simulation drilling of the equipment and products.

In recent years, domestic experts have conducted a lot of research and exploration, and virtual reality technology has been applied to the construction of digital campus platforms in colleges and universities. At present, some famous universities at home and abroad gradually complete the construction of virtual campuses, but the universities, particularly the universities and colleges in the province, are relatively lagged behind in this respect. The Heilongjiang province only has the system in two colleges, Harbin industry university and Harbin engineering university. The existing virtual campus system in China is inspected, and the existing virtual campus system has great defects in function and purpose design. The map navigation system has the advantages that the actual application mainly includes a map browsing function, the map navigation system is single in practical application, the functions are limited to moving and zooming of landmarks, the map navigation system rarely has a 360-degree rotation function, and the operation speed of the current three-dimensional campus is not ideal enough.

Therefore, the significance of the invention lies in that the virtual digital campus is used as one of important projects of digital city construction plans, has very important functions in aspects of improving the assessment level, improving the enthusiasm of students in assessment and the accuracy of results, being used as a remote teaching and resource platform and the like, and the development work of a three-dimensional virtual assessment system is extremely urgent. Under the large background of construction of national exemplary vocational colleges, the digital campus is taken as an entry point to carry out research and practice of a three-dimensional virtual assessment technology; the existing assessment method is used as the basis, and a computer system is used as a platform, so that the virtualized assessment is finally realized.

Disclosure of Invention

In order to solve the problem that the development of the career behavior habits of college students is not rationalized and a formed training system is not provided at present, the invention provides a virtual system and a virtual method for developing and training the career behavior habits of college students, and the specific scheme of the invention is as follows:

the first scheme is as follows: the system comprises a system management unit and a system function unit; the system management unit is connected with the system function unit through an instruction; the users comprise student users and administrators;

the system function unit comprises a checkpoint control unit and a global control unit, and the checkpoint control unit is connected with the global control unit in a bidirectional mode;

the system management unit comprises a loading module, a global control module and a scene control module, wherein the global control module is connected with the global control unit through an instruction, and the loading module, the global control module and the scene control module are respectively connected with the system function unit through the system management unit;

the scene control unit comprises a physical module, a particle module, an animation module, a script control module and a storage loading module;

the user performs level interaction, function selection and global control through the system function unit;

the administrator logs in the system management unit to carry out the specific operation of each module;

the loading module comprises a main scene and a main menu;

the main scene comprises a rapid loading and global manager setting function, and the main menu comprises five parts of training starting, article use simulation, scene selection, system animation and system setting and is used for user information feedback and information interaction.

Scheme II: the virtual method for training the development of the professional behavior habits of college students is realized on the basis of the system, and comprises the following specific steps:

loading a main scene by using Unity3D, and starting by including a global manager in the main scene;

loading a main menu, and freely switching among various functional scenes by a user by using the main menu, wherein the functional scenes comprise a trigger key for starting a game, an article using module, scene selection, system animation and system setting;

step three, the system management unit is used for integrating the scattered functional systems, and the global control module processes and arranges various overall information to promote the overall information interaction of the system; the scene control module is responsible for information processing of a single scene and is matched with the global control module to complete information processing;

exchanging data of the gate and the scene in the system through the gate control unit, wherein the data comprises functions of initializing data, configuring variables, operating a graphical user interface, an AI role, triggering information, controlling signals, processing the scene, setting sound and setting related to the scene, and the gate control unit is usually set to be an empty GameObject and hangs a Component of an application script;

and fifthly, constructing a system integral training structure by utilizing the scene control unit comprising a physical module, a particle module, an animation module, a script control module and a storage loading module, and enabling the student user to interact with the scene presented by the system module to complete examination and finally realize the training of the development and behavior habits of the university students.

Further, in step one, the main scene picture determines the loading speed of the main scene, and in addition to processing the first loaded picture, the Unity3D is used to process music, program data initialization, system data input and network connection system-related setting and best effort function configuration.

Further, the user of the main menu in the second step includes an administrator interface and a student interface, the administrator interface includes administrator login, data query, data statistics and system maintenance functions, and the student interface includes account management, role roaming, visual angle transformation, professional ability test and time statistics functions.

Further, the level control unit in step four exchanges the data of the level and the scene in the system, and the steps are detailed as follows:

step four, configuring respective initialization data for each level, configuring respective graphical interface information for each level, and performing default configuration and repeated loading on data in a level control unit by the level;

step two, configuring a global control variable, initializing and assigning a checkpoint configuration, and enabling a global control unit to acquire data information of a current checkpoint;

step four, the user directly controls the graphical user interface to obtain input data, and then analysis response is carried out; the task trigger points in the system are all controlled by the initial variables in the step four and the step two, and corresponding system functions can be triggered when the variables are changed;

setting a corresponding trigger key in an AI module of the software by the control unit, and determining the next operation by the information feedback of the AI role by the user, wherein the next action can be performed by the AI role according to the program setting only after the AI role obtains a function trigger signal;

step four, the checkpoint control unit analyzes the triggering information of the roles in the scene, including the change of basic values of the roles and requires the checkpoint control unit to simultaneously store data;

after loading the scene, starting to receive a scene control signal, initializing the scene setting and the character position information, and then determining the working mode and the scene display effect of the scene according to the character information;

step four, regarding the mode of processing the scene, the core function of the main processing scene, the scene includes various functions and the variable matched with the functions, the scene function exchanges information with the module in the system function unit, and then the scene variable controls the transmission of data between different scenes;

step four eight, the sound setting comprises various sound effects of the system and setting music, an administrator enables each scene to set different background music according to requirements, and in addition, correct background sound effects are played in a specific module and completed by a level control unit;

and step four, setting related scenes comprises various detailed functions, including selection of new scenes, video scenes and text scenes, which are respectively associated with independent gates and completed by programming codes burnt by the gate control unit.

Further, the scene control unit described in step five is subdivided into the following steps:

fifthly, the physical module mainly simulates physical laws of the real world, including collision detection, gravity, elasticity, friction and resistance in the simulation reality, each GameObject needs to be provided with a functional plug-in unit to simulate the simulation physical way-returning, so that an object in the virtual world can simulate the motion of the object in the real world, and when a rigid body is operated, different physical laws are simulated respectively through a function method AddForce () and an AddTorqe () to complete the similar matching of the simulation real object;

step two, according to the description of the step one, the physical module supports the data analysis of the particle module in other aspects, the particle module is established on a physical system, the scene control unit can manage the set value of the particles and operate the operation and disappearance of the particles, and the speed change, the special effect starting time value, the color conversion, the special effect size, the particle change, the rotation, the angular momentum, the physical collision detection, the eruption form and the mapping synthetic image of the particles are all adjusted by the particle module;

fifthly, the animation module is responsible for producing character actions, system level animations and scene switching maps according to dynamic images or model actions in the system;

fifthly, the script control module is mainly responsible for maintaining the continuous operation of the system, and the program compatibility of each module is controlled by utilizing the logic of the program;

and fifthly, the storage loading module is used for storing and extracting the system, after the user exits the system, the system is stored in the computer according to the user information of the current user, in addition, the module improves deletion and modification for the configuration file of the system, and the user can continue operating the system when entering the system again.

The invention has the beneficial effects that:

the invention analyzes the current situation and the existing problems of the professional competence examination of students in higher vocational schools, on the basis of collecting a large amount of current leading edge technologies at home and abroad by taking advantage of the successful experience of three-dimensional virtual reality in the fields of animation, games and the like, provides a student professional competence examination system for the mechanical and electrical integration and other industrial specialties of the higher vocational schools by adopting a virtual reality examination form, designs a system frame on a Unity three-dimensional game engine platform by adopting an immersive virtual reality technology, adopts a C # programming language, adopts a role roaming form of a first person which is relatively interested by students, adopts a high-quality light and shadow material model and a role action design with higher simulation degree in the system, uses the immersive design concept in the games, meets the requirements of the students on virtual situations, the whole assessment process is more substituted. The assessment situation is designed according to the enterprise work standardization process, and finally, the score sheet is generated according to the comprehensive performance of the students.

In conclusion, the design and implementation of the three-dimensional virtual examination system simulate real examination experience, create a digital examination platform, and realize the idea of digitalization and learning only, thereby having important practical significance. In the colleges and universities of the high-position schools, students need to be examined for vocational skills every year, in recent years, along with the fact that examination methods are single and examination contents are boring, tests of the types gradually become a form, not only a large amount of teaching resources are occupied, but also accurate results cannot be obtained, therefore, the vocational skill examination system for the high-position students is established by utilizing a virtual reality technology according to the requirements of actual tests, the main purpose of the invention is to improve the test interests of the students in a game mode, and the vocational skills of the high-position students can be cultured and tested more simply and conveniently.

Drawings

FIG. 1 is a diagram of a virtual system for training the development of university student professional behavior habits;

FIG. 2 is an expanded view of part of the functions of a loading module of a training virtual system;

FIG. 3 is a diagram illustrating an exemplary functional configuration of a training virtual system;

FIG. 4 is a schematic diagram of a hierarchy of an adult training virtual system;

FIG. 5 is a functional diagram of administrator operability;

FIG. 6 is a functional diagram of a student operable;

FIG. 7 is a schematic view of a login link flow;

FIG. 8 is a schematic view of a process for loading and saving data;

FIG. 9 is a functional diagram of the operation of the checkpoint control unit.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

the first embodiment is as follows:

in the process of designing the occupational ability assessment system, the system is guaranteed to be high in stability, smooth in operation and smooth in system animation effect, and system breakdown caused by insufficient memory, logic errors, boundary errors and other factors can be avoided. The principles followed by the system design are:

(1) and (6) reliability. In the process of system design and development, the reliability of the system needs to be tested, and particularly, when the system roams to the system boundary, the system is easy to crash, so that the normal and smooth operation of the system is ensured. The running smoothness of the system is ensured while the animation effect is ensured.

(2) Compatibility principle. As the system needs the students to test on the computer, the compatibility is needed to be carried out on different hardware configurations and under different resolution conditions, and the students can better use all functions of the system.

(3) And (4) expandability. The assessment system can continuously provide new assessment requirements in the development process, and when the system is designed, good expandability is ensured, and development of new functions is facilitated.

(4) Easy maintenance. In the system development process, the system is easier to maintain by adding an exception report, a system log and the like.

Overall system architecture design

The system structure is crucial in development, and various system parts need to be reasonably combined and applied as required. The Unity3D is a mature game engine, has a mature basic framework of its own, and provides convenience, so in the process of virtual reality system development, because of the existence of the framework of Unity3D, a framework capable of efficiently realizing the requirements of the existing system can be created conveniently according to the requirements. In the game engine, Unity3D should be familiar with the internal core philosophy of implementation. The game engine manufacturing system is used for dividing the system into a plurality of parts, so that the complex system is divided into organized functional modules, the functional modules are called Scene in the game engine, the Scene division is an efficient system implementation means, the Chinese of Scene is translated into level, in an efficient system, resources occupied by each level are relatively even, different levels are responsible for different system functions, and the system is divided into different levels to improve the development efficiency of the system. The framework structure of the virtual reality system developed by Unity3D adopted by the invention is combined by a plurality of independent scenes. The system architecture developed by the present invention is shown in fig. 1.

In the system, a main scene is loaded in the first step, the main scene is used to enable the system to be started more quickly, in Unity3D, the first main scene picture determines the loading speed of the main scene, the main scene includes a global manager of the system, and the overall operating efficiency of the system is reduced due to too low loading speed, and the system is crashed in severe cases. In the process of system development, the main scene needs to process a series of system-related settings such as music, program data initialization, system data input, network connection, and the like in Unity3D in addition to the first-loaded picture, and therefore, the main scene loading is important. And the main menu is loaded in the second step of the system, and enables a user to freely switch among various functional scenes, wherein the specific functional scenes comprise a trigger key for starting a game, an article using module, scene selection, system animation, system setting and the like. The main menu is a navigation of the entire system functionality.

The second embodiment is as follows: in addition to the main scene training described in the first embodiment, the system further includes independent scenes for managing different functions, and these scenes divide the system into different modules to implement different functions respectively. The scene can be repeatedly loaded, so that repeated occupation of system resources is avoided, and computer resources occupied by the system are reduced. These scenarios are divided into a function implementation unit and a system management unit. The function implementation unit is responsible for implementing specific functions of the system, including a physical system, a particle module, a script system, a save and load module, and the like, which will be described in detail in the next section.

The system management unit is divided into a global control module and a scene control module, and the setting and global functions of the whole system can be controlled through the modules. The system functions are mainly divided into a basic physical implementation system, a particle module, a script control module and the like, and the subsystems respectively implement different functions and are finally combined into a complete system. The system management unit is used for integrating the scattered functional systems, various overall information is processed and arranged in the overall control module, so that the overall information of the system is smoothly interacted, the scene control module is used for processing the information of a single scene and is matched with the overall module for use, and the two control units are explained below

System gate unit

Each level in the system is configured with a corresponding control module to implement the information processing and transmission of each level, the function of the unit is shown in fig. 8, and the following is the main content of the level control unit:

(1) each level is configured with respective initialization data, wherein the most important is a graphical interface of the level, and the graphical interface in the system is not realized by a single scene. Because if all interfaces are set in one scene, the same interface scene must be repeatedly loaded when the interfaces are loaded, the switching of the interfaces in the system is a very frequent matter, and such multiple loading brings huge resources to the system, directly results in the prolonging of the response time of the system, and has very obvious visual effect. Therefore, each level needs to configure the graphical interface information of the level, and the level performs default configuration on data in the level control unit, so that the repeated loading efficiency of the interface can be improved, and the response time is controlled within a reasonable range.

(2) Configuring a global control variable mainly refers to a plurality of variable values which need to be initialized or assigned, so that a global control unit can acquire data information of a current level and the like.

(3) And directly controlling the graphical user interface to acquire input data, and then analyzing and responding. Complex systems have a large number of system variables that trigger various system functions, requiring the optimal initial variables to be given in the variable control unit. For example, some task trigger points in the system are controlled by a number of variables that trigger corresponding system functions when they change, all of which require initial values to be given in the control module.

(4) The control unit needs to set a corresponding trigger key in the AI module, and the user needs the information feedback of the AI role to decide the operation of the next step, and the AI role can only carry out the next step according to the program setting after obtaining the function trigger signal.

(5) And analyzing the triggering information of the roles in the scene, including the change of the basic values of the roles, wherein the triggering information requires to control the global unit and store the data at the same time.

(6) After loading the scene, starting to receive scene control signals, such as initialization of scene setting and character position information, and then determining the working mode and the scene display effect of the scene according to the character information

(7) The mode of processing the scene mainly processes the core function of the scene, the scene comprises various function settings, and each function system needs to be matched with the function settings, and the variables determine the mode of executing the scene function. Some scene functions need to exchange information with other modules, and scene variables control the transmission of data between different scenes to ensure the correctness of the information.

(8) The sound content includes various sound effects of the system and setting music. Different background music can be set in each scene according to the requirement, and in addition, correct background sound effect is played in a specific module, which is completed by the level control unit.

(9) Other scenario-related settings include detailed functions such as selection of new scenarios, video scenarios, text scenarios, etc., which are associated with separate checkpoints and thus are not uniform in usage, and those separate usages may be implemented programmatically, but are programmed to take into account the reasonable performance of the system using computer resources. The code of the detail function is controlled by the level control unit, so that the method has the advantages of avoiding frequent loading of the program and computer resources occupied by the compressed program, reducing the computer memory of the system program and improving the system operation efficiency.

The system level control unit determines data exchange between the level and the scene in the system, the level control unit is usually set to be an empty GameObject, and a plurality of components of scripts are generally mounted, so that a simple and efficient method for loading foreign scripts by the system level control unit can be used, and the default script initialization means of the Unity3D is much higher than that of dynamic loading in terms of loading speed.

The third concrete implementation mode: according to the description of the first or second embodiment, the embodiment can be further refined into system function design and implementation:

in the system control function, it is required to implement the main flow of the system, and in addition, it is required to implement data exchange with various functional modules, so that the characteristics of the Unity3D engine can be effectively utilized. The basic function system mainly has the function of realizing the basic development requirements of the system, has independence and exists independently without the restriction of different scenes, has no influence on the number of the scenes and the content of the scenes, realizes data interaction with the control unit of the system, and finally realizes the reasonable and efficient implementation of the system in the basic function module of the system. The basic functions commonly used in the system basic function system main control, such as physical effect, particle generation, animation playing, script control, texture mapping display, saving and loading module, etc. The complete online of the system can not be realized without the realization of the functions, and the default basic functions of the United are very important, so that the settings can not be operated during program development, and the variables and calling methods of the functional modules must be familiar, so that a qualified system can be completed. The basic functions of each basic module control are set forth in detail below.

(1) A physical module:

the physical module mainly simulates physical laws of the real world, mainly simulates main collision detection, gravity, elasticity, friction force, resistance and the like in reality, and other aspects of the physical system support data analysis of the particle module, so that of the particle module is built on the physical system. The principles of some physical simulations will be explained in detail below. Describing the concept of a rigid body, if a real object is simulated in the system and the object is required to have reality, gravity collision detection and the like, the rigid body is called, and if the real object is required to have reality, each GameObject is required to be provided with a functional plug-in unit, so that the object in the virtual world can imitate the motion of the real world object. When operating a rigid body, some function methods such as AddForce (), addvector () and the like are necessary to simulate different physical laws respectively, so that the similarity of the real objects of rigid body simulation is high.

Rigid bodies are indispensable in the system, most objects in the scene are added into rigid bodies and soft bodies, which are opposite to the rigid bodies, if the objects are required to be capable of moving, and the Unity3D has no soft bodies, because the soft bodies occupy a large amount of resources in the system and the operation efficiency is reduced. It is used more in 2D systems. In a 3D game engine, skeletal functions can replace the role of software.

(2) A particle module:

the function of the particle module is mainly reflected in the development of visual special effects. The particle module in the scene has a plurality of setting items, and the mutual action of all the setting items is combined to show a special effect approaching to reality. Its parameters can be regulated by various curves, and the coordinate X-axis is correspondent to the time of special effect, and the coordinate Y-axis is correspondent to the regulated parameters. By means of interaction of various parameters, the particle module can present different effects, and the control unit can manage the particle set value. Real-time operation of the operation and disappearance of particles. Particle velocity changes, effect onset time values, color transitions, effect size, particle changes, rotation, angular momentum, physical collision detection, burst shape, mapped composite images, etc. are all adjusted by the particle module. The special effect can show the state result of the special effect in real time or in advance by setting a value, and the system controller can carry out setting. Different special effects in the system can not be set by the parameters. Usually, the particle module is not so simple, and can realize more complex particle effects, but the computer resource is limited, and the particle effects, such as the background of a scene, the rain and snow in the environment and the like, can be replaced by the use of the map. In formal development, a particle module is frequently used, a proper particle module is specially created, the control efficiency of particles can be higher, a control unit only provides a command, basic requirements can be realized by starting or disappearing the particles, and a detailed operation method of the particle module is under the charge of professional art designing personnel, so that in a system development process, in the aspect of art personnel, reasonable effects are not difficult to achieve efficiently, but technical personnel are difficult to achieve. The technical team can be familiar with the way the particle module operates.

(3) Animation module

The animation module is responsible for a series of production such as character action, system level animation, scene switching mapping and the like aiming at the aspect of dynamic images or model actions in the system. The overall role of the system animation not only includes the setting of external software, but also takes charge of many other functions. One of the main functions that an animation module is responsible for is the ability to employ external animation software. The dynamic pictures of the system can be modeled by using modeling software, the mainstream modeling software at present is 3DS MAX and MAYA, and a game engine supports the import of various models, so that a system animation module is responsible for controlling the models completed by the model drawing software, needs to be compatible with the file format of the models, and is loaded into the game engine. In addition, the default script of the system supports the other function, and the animation module can be combined with the system script to manage the system animation through a program, for example, the animation requirement can solve the frame speed of the animation, and the triggering and disappearance of the animation. In the combination of the animation module and the script program, the key point is that the function of adding the animation can be realized, different animations can be fused with each other to cover different playing sequences, multiple animations are mixed, and different animations can be played in different layers at the same time.

(4) Script control module

The script development module is mainly responsible for the continuous operation of the system without errors, and the normal execution of the system is maintained in the system by means of the logic of the program. The important role is to make the code clearly organized. A qualified system script control module can correctly execute the program logic of codes, and makes the programs of respective modules not conflict, so that the compatibility is improved, and on the other hand, the system script control module also has high degree of freedom, provides a good platform for technicians to create programs meeting the requirements of the technicians, and also has a built-in editor which is compatible with other mainstream languages such as C + +, Java and the like.

(5) Save and load module

The module's function is, as its name implies, responsible for the storage and retrieval of the system. After the user exits the system, the system can speak the user information of the current user and store the user information into the computer, and in addition, the system improves and deletes the configuration file of the system, so that the user can continue the system when entering the system again. The task for which the system is responsible is to realize serialization and deserialization of data in a common way, and realize the function efficiently at the required time point. When the system is stored in a computer, the storage efficiency is ensured, because the smooth execution of the system is ensured when the execution smoothness of the system is important for storage, long-time jam does not occur, and under the condition of processing large information, the segmented storage is a reasonable method, so that the obvious jam does not occur in the operation of the system. In addition, the system for saving and loading the system can cooperate with other system functions to solve the problem of saving data with large data volume. Different saving methods aim at different saving operations, for example, when the access of scene information is solved, it is necessary to ensure that multiple types of operations are provided, and an implementation means cannot be adopted integrally.

The fourth concrete implementation mode: the invention relates to a virtual reality assessment system for professional ability of a high-school. The system mainly realizes the functions of card punching scene simulation, professional garment replacement, jigsaw test, furniture installation and the like, and the following practical implementation and application cases of the system are as follows:

the invention adopts 3DSMAX software, Unity3D and other technologies to realize a student vocational skill assessment and evaluation system of a higher vocational college, which mainly comprises four aspects of login process, vocational basic capability test, jigsaw test, furniture installation practice test and the like (corresponding scene assessment can be carried out according to different learning processes of students, and only simple example flows are given here), and specific examples for realizing the processes by the system are given below.

(a) Login process

First, select the Factory task. exe icon in the software

A dialog box pops up after double clicking the icon, wherein the function of the dialog box is mainly to select the screen resolution and the picture quality, as shown in fig. 5-2. The screen resolution is 13, and the screen resolution covering most of the system is respectively: 320 × 200, 320 × 240, 400 × 300, 512 × 384, 640 × 400, 640 × 480, 800 × 600,1280 × 600,1280 × 720, the picture quality is divided into 6 types including Very Low, Medium, High, Very High, Ultra, and the like, and the right side also has the function of windowing windowwed;

the method comprises the steps that 1280 x 720 which is default in the system is selected, the picture quality is low, and a play key is clicked to enter a system login interface;

the test account number is s002 and the password is m002, and the test account number is clicked to enter the software;

after entering the system, the system is controlled by a first person through a control key commonly used in games, a character can be controlled to move forwards through a w key, a character moves backwards through an s key, an a key moves leftwards, a character moves rightwards through a d key, and the sight line and the direction of the character can be controlled by pressing a right mouse button and rotating a mouse.

(b) Basic occupational diathesis test

For enterprises, the system has own enterprise culture and requirements, for example, employees are required to strictly go to work and get off work according to fixed time, and as the course time of students in college and secondary schools has certain elasticity, the students do not need to go to class every day according to the fixed time, so that the students who just enter the work often have long-time inadaptation and cannot adapt to the requirement of card punching every day at the fixed time, and therefore, the system is provided with a card punching test function, so that the students adapt to the requirement of card punching of enterprises in a virtual environment, and the inadaptation time of work is reduced;

the specific operation is to control the person to move forward to approach the card punching position, press the F key and prompt that the characters disappear to indicate that the card punching is successful.

To the enterprise, unified uniform dress not only can improve the staff and feel to the affiliation of enterprise, still have important effect to establishing the culture of enterprises, and the work clothes of some special materials can also protect the staff, prevent that the staff from receiving the injury in work, fire-entry suit all has some fire-proof materials and can prevent that the fire fighter from receiving the fire injury in work, the gauze mask can prevent that the doctor from being infected by the virus of patient's exhalation, consequently, unified dress is indispensable to the staff of enterprise, in order to cultivate the custom of wearing the work clothes in future work for the student, this system requires the student to change the work clothes after checking the card. Specifically, after the card is punched, the door of the dressing room is found to be opened,

(c) jigsaw testing

After the operations of card punching and clothes changing are finished, the user needs to go to the foreground to pick up the task. The invention establishes two test tasks, namely a jigsaw test and a furniture installation test respectively, wherein the jigsaw task mainly tests the logic thinking ability of a user, and the furniture installation mainly tests the space imagination of the user. The first process is that the user is required to control the character to approach the foreground, and two cards can be found out from the foreground after the character approaches the foreground, wherein the left side is the card for holding furniture, and the right side is the jigsaw card.

Firstly, the user can find that the jigsaw door is opened by controlling the mouse to select the jigsaw, at the moment, the user can control the characters to enter a jigsaw laboratory, and find that one character is opened, and then the user can control the characters to walk to the opened computer to carry out a jigsaw task.

The user needs to hold the fragments of the jigsaw to drag the jigsaw to place the jigsaw in the correct position, if the position is correct, the jigsaw can not move, if the position is incorrect, the jigsaw can move again, and finally the using time of the whole jigsaw can be displayed after the jigsaw is finished,

(d) examination of furniture

After the examination of the jigsaw is finished, the invention designs a piece of furniture examination content according to the requirements of enterprises, and the main purpose is to examine the space logic thinking ability and the operation ability of students.

The tool bar is provided with two tools, namely an electric drill and an iron hammer, and 11 materials, namely a door 11, a door 12, a door 21, a door 22, a door 13, a door 23, a base material, a top flat plate, a top corner line, a middle flat plate, a long wood plate and the like, are arranged on the right side of the tool bar.

The installation of the cabinet is started by selecting the correct tool (drill) and the assembled base material in the lower right corner.

And then controlling the sight line and the angle of the character by using the mouse, wherein the vision can be translated by pressing a mouse roller, the mouse can be controlled to be drawn close to or far away from the target by rolling the mouse, and the vision angle can be selected by pressing a right button. Then selecting the material to be installed next, namely, the long wood board aims the red ray of the electric drill at the green installing point of the wood board, and the left key is pressed.

At this time, the game can be seen in the file after being quitted according to the ESC, and finally, a score sheet folder is generated.

Double-click the folder to see the score file of the corresponding user after entering the folder, and see the user name of the student after entering the score file;

final test protocol

The test of the system is divided into a function test, a performance test and a compatibility test of software. The function test mainly tests whether each service function of the software runs well, and then the service functions of the whole software are connected to verify the integrity of the system software. The performance test mainly tests the friendliness of a system interface, the smoothness of scene loading and the condition that equipment resources are occupied when the system runs. And testing whether the system can normally run on each operating system or not and testing the animation effect on each system. The test environment of the system is shown in table 1.

Operating System Categories	Memory device	Type of system	Processor with a memory having a plurality of memory cells
				Windows XP	2G	32 bit	i3
Windows 7	2G	32 bit	i3
				Windows 7	4G	64 bit	i3
Windows 7	4G	64 bit	i5
				Windows 7	4G	64 bit	i7
Windows 8	4G	64 bit	i5
				Windows 8	6G	64 bit	i7
Windows 8	8G	64 bit	i7
				Windows 10	8G	64 bit	i7

TABLE 1

Functional testing

In the system test, there are different classifications according to the test mode and angle. Common test methods include dynamic and static tests, black and white box tests, unit tests, integration tests, system tests and the like. The testing method mainly used by the invention is mainly dynamic testing. The dynamic test is to verify the correctness of the software running result by running the software.

In the testing process, unit testing is firstly carried out on each function, each function module is ensured to be capable of independently running, and the game logic has no errors. And then, performing an integration test, and performing a joint test on each functional module to ensure that the functional modules work cooperatively without conflict. And finally, the whole system is tested, various inputs of students entering the system are simulated, and whether the requirements are met or not is tested. Specific results are shown in table 2.

TABLE 2 System functional test results

Performance and compatibility testing

Compatibility testing

The invention aims at the system designed and developed by students and needs to test the compatibility of different computers and different operating systems, so the existing common operating systems and system hardware configuration are selected for testing, and the compatibility test result is shown in table 3.

TABLE 3 compatibility testing

Operating System Categories	Type of system	Compatibility
			Windows XP	32 bit	Incompatibility
Windows 7	32 bit	Incompatibility
			Windows 7	64 bit	Compatibility of
Windows 8	64 bit	Compatibility of
			Windows 10	64 bit	Compatibility of

And then testing different system resolutions respectively, wherein the test content is too large, only the screen resolution of the operating system is selected to be 1366 × 768, and whether the different resolutions of the system can accurately display the whole system in a full screen mode or not and whether all the contents can be normally displayed or not is tested respectively. Some of the test results are shown in table 4.

TABLE 4 partial resolution test results

And finally, under the condition that the system resolution is different, the image quality is respectively Very Low, Low, Medium, High, Very High and Ultra, and the test using effect is shown in the table 5 because the number of the test results is too large.

Table 5 partial test results

System resolution	Operating system resolution	Picture quality	Test results
				320*200	1366*768	Very Low	Not full screen, not displaying all content
320*200	1366*768	Low	Not full screen, not displaying all content
				320*200	1366*768	Medium	Full screen, unable to display all content
320*200	1366*768	High	Full screen, unable to display all content
				320*200	1366*768	Very High	Full screen, unable to display all content
1280*600	1280*600	Low	Full screen, displaying all content
				1280*720	1280*720	High	Full screen, displaying all content
1280*768	1280*768	Very High	Full screen, displaying all content
				1360*768	1360*768	Medium	Full screen, displaying all content

Performance testing

The performance test is to test various performance indexes of the software under various different conditions. The assessment system is tested, and the performance condition of the software is reflected by testing the response time, the CPU load and the memory use of the professional quality assessment task. The performance of the system mainly comprises the time required for loading each game scene during scene switching and the loading response time of each scene, and because the hardware and the system types of each system are different, the response time of a higher configured computer is shorter, and the response time of a poorer configured computer is longer, the invention carries out comparison test on the loading time of different scenes and different picture qualities under different hardware configuration conditions, and under the same hardware configuration, the influence of the picture quality on the response time and a specific result chart 6 show that

Table 6 response time diagram.

The influence of different hardware on the response time under the same picture quality was retested, and the specific results are shown in table 7

Table 7 response time diagram.

Picture quality	Scene selection	System memory	Processor kind	Response time
					Medium	Scene change	4G	i3	0.43s
Medium	Scene change	4G	i5	0.38s
					Medium	Scene change	4G	i7	0.33s
Medium	Scene change	8G	i5	0.21s
					Medium	Scene change	8G	i7	0.16s

Analysis of test results

The functional test result shows that the system normally and completely realizes all functions specified in the system requirements. When testing compatibility, the system is not compatible with the 32-bit system, mainly because the system development tool uses a 64-bit system version, so that when the 32-bit system is not compatible, the screen resolution is tested in a contrast way, and if all contents are displayed in a normal full screen size, the system resolution and the operating system resolution should be adjusted to be the same. As can be seen from the test of the picture quality, when the screen resolution is low, the selected picture quality is low, the effect is good, and when the screen resolution is high, the picture quality is high, and the effect is good. By carrying out comparison tests on system function response time under different hardware conditions, it can be found that when the hardware conditions are better, the higher the selected resolution is, the lower the picture quality effect is, the faster the response time is, but the picture quality is relatively poor, so how to select the resolution and the picture quality, the proper picture quality should be selected according to the hardware conditions, the final effect is the best, and the picture pixel quality is the best.

First, the testing scheme and testing environment are briefly described. Secondly, the function test is carried out on the student account login function, the picture splicing function and other functions of the system mainly through dynamic test. Through testing, the system operates normally and basically meets the functional requirements. And then, the system is subjected to performance test, and the test proves that the response time of the system software basically meets the requirement. Through testing the compatibility and performance of the software system, the system can be proved to be capable of operating well under the existing hardware condition.

While the present invention has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention; therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. University student's professional behavior custom builds training virtual system, its characterized in that: the system comprises a system management unit and a system function unit; the system management unit is connected with the system function unit through an instruction; the users comprise student users and administrators;

the loading module comprises a main scene and a main menu;

2. The virtual method for training the development of the professional behavior habits of college students is realized on the basis of the system of any one of claim 1, and is characterized in that: the specific method comprises the following steps:

3. The virtual college student professional behavior habit formation training method according to claim 2, wherein: in step one, the main scene picture determines the loading speed of the main scene, except for processing the first loaded picture, the music processing in Unity3D, program data initialization, system data input and the setting of the system-related best effort function configuration of network connection are utilized.

4. The virtual college student professional behavior habit formation training method according to claim 3, wherein: the user of the main menu in the second step comprises an administrator interface and a student interface, wherein the administrator interface operation comprises administrator login, data query, data statistics and system maintenance functions, and the student interface operation comprises account management, role roaming, visual angle transformation, professional ability testing and time statistics functions.

5. The virtual college student professional behavior habit formation training method according to claim 4, wherein the virtual college student professional behavior habit formation training method comprises the following steps: the checkpoint control unit in the fourth step exchanges data of the checkpoint and the scene in the system, and the steps are detailed as follows:

6. The virtual college student professional behavior habit formation training method according to claim 2, wherein: the scene control unit in the fifth step is detailed as follows: