CN112289122A - Fire extinguishing operation drilling system based on VR - Google Patents
Fire extinguishing operation drilling system based on VR Download PDFInfo
- Publication number
- CN112289122A CN112289122A CN202011311582.7A CN202011311582A CN112289122A CN 112289122 A CN112289122 A CN 112289122A CN 202011311582 A CN202011311582 A CN 202011311582A CN 112289122 A CN112289122 A CN 112289122A
- Authority
- CN
- China
- Prior art keywords
- fire
- fire extinguisher
- attitude
- module
- fire extinguishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000011521 glass Substances 0.000 claims abstract description 18
- 238000012549 training Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims description 48
- 230000001629 suppression Effects 0.000 claims description 11
- 230000002452 interceptive effect Effects 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000010304 firing Methods 0.000 claims description 2
- 238000013480 data collection Methods 0.000 claims 1
- 238000004088 simulation Methods 0.000 description 18
- 230000003993 interaction Effects 0.000 description 10
- 230000000007 visual effect Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 6
- 238000009877 rendering Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a fire extinguishing operation drilling system based on VR, comprising: install virtual 3D demonstration software's terminal, VR glasses, a locator for providing the space location of VR mutual training in-process, operating handle, the fire extinguisher and be used for gathering the gesture position of fire extinguisher, the on-off state of the safety catch of fire extinguisher, the data acquisition unit of the valve angle of fire extinguisher, VR glasses, locator, operating handle, data acquisition unit connection terminal connect, the locator is installed on the fire extinguisher. The fire extinguishing operation drilling system enables the experiencer to experience the fire extinguishing operation drilling condition in the virtual environment really, so that the experiencer can quickly and accurately master the fire extinguishing method.
Description
Technical Field
The invention belongs to the technical field of virtual reality and fire safety, and particularly relates to a fire extinguishing operation drilling system based on VR.
Background
Fire is an important factor for promoting the progress of human civilization, but fire often accompanies the human civilization, and property loss and casualties are caused. How to avoid a fire and save oneself in a fire is a matter that the public has to think and participate. The education of fire prevention and extinguishment has also been popularized for many years, but because the fire-fighting facilities are expensive, the personnel organization training also stays in listening and watching, and the practical operation has many effects which cannot be achieved. The appearance and the application of VR (Virtual Reality) technology provide a good operation actual combat platform for our education training, and its unique immersive experience effect can provide vivid Reality scenes for us, and also can interact with the objects in the scenes through actions, thereby achieving the training effect of combining theory and practice, playing the purpose of safety warning education, and being capable of being repeatedly used. At present, a pure VR scheme is generally adopted to simulate a scene of a fire scene, and a VR remote controller handle is used for replacing a fire extinguisher to perform virtual fire extinguishing operation.
However, this method does not employ a fire extinguisher, so that the experiencer cannot really grasp the using method and the effective fire extinguishing method of the fire extinguisher, and thus, the situation that the fire extinguisher cannot be correctly operated and the fire is correctly extinguished easily occurs when the experiencer is confronted with a real fire.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a VR-based fire extinguishing operation drilling system. The technical problem to be solved by the invention is realized by the following technical scheme:
a VR-based fire suppression operations drilling system, comprising: the device comprises a terminal provided with virtual 3D demonstration software, VR glasses, a locator for providing space location in the VR interactive training process, an operating handle, a fire extinguisher and a data acquisition unit for acquiring the attitude position of the fire extinguisher, the switching state of a safety catch of the fire extinguisher and the valve angle of the fire extinguisher, wherein,
VR glasses, the locator operating handle the data acquisition unit is connected the terminal is connected, the locator install in on the fire extinguisher.
In one embodiment of the present invention, the data acquisition unit includes:
the attitude acquisition module is used for acquiring the attitude position of the fire extinguisher;
the switch state acquisition module is used for acquiring the switch state of a safety plug of the fire extinguisher;
the valve angle acquisition module is used for acquiring the valve angle of the fire extinguisher;
the signal acquisition box is respectively connected with the attitude acquisition module, the on-off state acquisition module, the valve angle acquisition module and the terminal and is used for sending the attitude position of the fire extinguisher, the on-off state of a safety plug of the fire extinguisher and the valve angle of the fire extinguisher to the terminal.
In one embodiment of the invention, the attitude acquisition module comprises an attitude sensor, and the attitude sensor is mounted on the fire extinguisher.
In one embodiment of the invention, the attitude sensor is a 9-axis attitude heading reference system.
In one embodiment of the invention, the switch state acquisition module comprises an IO card, and the IO card is installed on a safety plug of the fire extinguisher.
In one embodiment of the invention, the valve angle acquisition module comprises an angle sensor mounted on a valve of the fire extinguisher.
In one embodiment of the invention, the virtual 3D demonstration software comprises a teaching demonstration module and a fire-fighting drill module, wherein,
the teaching demonstration module is used for providing the teaching of fire extinguishing knowledge through teaching demonstration;
and the fire extinguishing drilling module is used for carrying out fire extinguishing drilling operation on different firing scenes.
In one embodiment of the invention, the instructional presentation module comprises at least one of text, pictures, multimedia material, audio, video.
In one embodiment of the invention, the fire drill module includes a pool of special effect objects storing a number of special effect particles having key values.
In one embodiment of the invention, the mobile terminal further comprises a display device, and the display device is connected with the terminal.
The invention has the beneficial effects that:
according to the invention, data such as the posture position of the fire extinguisher, the switch state of the safety catch of the fire extinguisher, the valve angle of the fire extinguisher and the like are acquired through the data acquisition unit and are sent to the terminal, so that the virtual 3D demonstration software installed on the terminal can reflect the operation condition of an experiencer on the fire extinguisher in real time.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic diagram of a VR-based fire suppression operation drilling system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a fire suppression operation drilling system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of virtual 3D presentation software provided by an embodiment of the invention;
FIG. 4 is a schematic illustration of a fire apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic view of a fire fighting tag provided by an embodiment of the present invention;
FIG. 6 is a schematic view of a fire extinguisher provided by an embodiment of the present invention;
FIG. 7 is a schematic illustration of a crash effect provided by an embodiment of the present invention;
fig. 8 is a schematic diagram of a workflow provided by an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Example one
Referring to fig. 1, fig. 1 is a schematic diagram of a VR-based fire extinguishing operation drilling system according to an embodiment of the present invention. The embodiment of the invention provides a fire extinguishing operation drilling system based on VR, which comprises: install terminal, VR glasses of virtual 3D demonstration software, a locator for providing the space location of VR mutual training in-process, operating handle, the fire extinguisher and be used for gathering the gesture position of fire extinguisher, the on-off state of the safety catch of fire extinguisher, the data acquisition unit of the valve angle of fire extinguisher, wherein, VR glasses, locator, operating handle, data acquisition unit connection terminal connect, the locator is installed on the fire extinguisher.
Specifically, the terminal is, for example, a VR display computer, which is mainly used to install virtual 3D presentation software, the virtual 3D presentation software can implement 3D scenes with high fidelity and convenient interaction by means of Unity3D development software, and can provide rendering output of three-dimensional interaction programs and processing of related operation logic, wherein Unity3D is a multi-platform comprehensive development tool developed by Unity Technologies, which can create type interaction content such as three-dimensional video games, building visualization, real-time three-dimensional animation, and the like; the operating handle is directly connected with the terminal and can provide VR interactive control; the locator can be arranged at the bottom of the fire extinguisher so as to provide space location in the interactive training process, the model of the locator is HEC 395C for example, and the locator is fixed at the central position of the bottom of the fire extinguisher and is located through inertial navigation; VR glasses are connected to a terminal through, for example, a DP (display port) interface, and are mainly used to provide an immersive presentation environment to an experiencer, specifically, provide an immersive presentation environment in the form of video and audio; the data acquisition unit provides the attitude data of fire extinguisher to the terminal in the semi-physical simulation training process, the on off state of safety bar and the angle of valve (for example, the valve is the duckbilled valve), when in actual use, only can utilize the fire extinguisher to carry out the fire extinguishing operation of spraying water after the safety bar is opened, consequently, after the safety bar is opened, can confirm the user state of fire extinguisher in virtual environment through the attitude data of gathering the fire extinguisher and the angle data of valve, thereby confirm whether experience person's operation meets the requirements, virtual environment for example can be building site timber environment of catching a fire, kitchen environment of catching a fire, chemicals environment of catching a fire, bus environment of catching a fire etc..
Referring to fig. 2, the system architecture of the fire extinguishing operation drilling system of the present embodiment is divided into a physical layer of an infrastructure center, a platform layer of a software platform module architecture, a data layer providing data support services, an application layer for software business implementation, and a presentation layer for user experience human-computer interaction, where:
infrastructure: as a physical layer for bearing the whole system, the system mainly takes hardware equipment as main equipment, and is built with a terminal, VR glasses, a data acquisition unit, a locator, an operating handle, a fire extinguisher and the like. Based on the virtual 3D demonstration software system, the system constructs a whole set of virtual 3D demonstration software system.
Platform layer: and (4) constructing a platform environment of the software application and constructing a platform foundation of the system software application. The system can meet the current mainstream computer system environment, such as a Windows system, a Linux system, an kylin system and the like. The system can normally operate under the conditions.
And (3) a data layer: the resources and data services required by the system are provided, and comprise tactile feedback data (namely data of an angle sensor), control model data (namely data of multimedia sound and text), alarm data, monitoring image data, sound data, scene data, multimedia data, operation logic data (namely fire extinguishing operation logic of a fire extinguisher) and the like.
An application layer: the simulation system is used for deploying simulation application and simulation resource models and managing simulation processes. Virtual 3D demonstration software is deployed on the layer. The virtual 3D demonstration software system realizes the visual effect display of the fire extinguishing scene, and responds to relevant actions in real time by receiving the acquired data of the data acquisition equipment; and displaying the whole fire extinguishing interaction process.
A presentation layer: the human-computer interaction interface is mainly used for providing teaching demonstration and operation experience for users. The man-machine interaction interface provides beautiful and reasonable interface layout, and the initial configuration and the simulation application of the system are completed through humanized operation such as an operating handle and the like. By adopting a virtualization technology, the simulation training of operating the fire extinguisher in a real environment can be realized through fire extinguisher simulation equipment.
Please refer to fig. 3, specifically, the virtual 3D demonstration software mainly includes two parts, namely a teaching demonstration module and a fire-extinguishing drilling module, the teaching demonstration module is used for providing the teaching of fire-extinguishing knowledge for the experiencer through teaching demonstration, specifically, the demonstration can be realized by at least one of text, picture, multimedia material, audio and video modes, the fire-extinguishing drilling module mainly combines with a fire extinguisher (such as a semi-physical fire extinguisher) or VR glasses to realize the three-dimensional interaction of the experiencer, so as to realize the operation of the fire extinguisher by the operator, and the fire-extinguishing drilling module includes functions of data monitoring, interaction, three-dimensional rendering, special effects, sound effects, data acquisition, visual angle control, operation prompt and the like.
Furthermore, the teaching demonstration module carries out knowledge education in the aspect of fire extinguishing on the experiencer by calling files such as external texts, voice, multimedia teaching, pictures, audio and video. The external data format mainly includes: video (in a format of mp4, mov, avi, wav, rmvb and other common video formats), audio (in a format of mp3, ogg and other common audio formats), text (in a format of txt, doc, ppt, pdf and other common text document formats), pictures and other teaching materials. Knowledge education in fire extinguishment mainly comprises: demonstration of a basic method for fire extinguishing, introduction of fire-fighting equipment and identification, introduction of use of a fire extinguisher and the like, wherein:
1) the basic method demonstration of fire suppression included:
an isolation method: combustible, combustible and combustion-supporting substances are separated from the fire source.
A cooling method: the water is directly sprayed onto the burning object to reduce the temperature below the burning point.
Asphyxia method: the surface of the burning material is covered with incombustible such as wet cotton blanket, warm gunny bag, warm cotton quilt, dry sand, etc. to isolate the air and stop the burning.
Chemical inhibition method: the chemical fire extinguisher containing nitrogen is sprayed to the burning matter to make the fire extinguishing agent take part in the burning to produce chemical action and cover the flame to interrupt the chemical chain reaction of burning and extinguish the fire.
2) Introduction of fire-fighting equipment and identification:
enabling the experiencer to recognize the fire fighting equipment, and to master the performance and the use method of the fire fighting equipment, such as the fire fighting equipment in fig. 4.
Introduction of fire-fighting identification: enabling the experiencer to know the fire fighting identification and master the meaning of the identification, such as the fire fighting identification in fig. 5.
3) Introduction to the use of fire extinguishers
The fire extinguisher is for example a portable ABC dry powder fire extinguisher in fig. 6, the instructions for its use are: a) when a fire breaks out, the barrel body is shaken up and down for a plurality of times while running; b) pulling out the safety pin, and holding the rubber tube by the barrel body and the ground vertically; c) selecting an upwind position close to a fire point, and enabling the leather hose to face the root of the flame; d) pressing down the handle with force, swinging and spraying, and injecting dry powder into the root of the flame; e) after the fire is extinguished, the water is used for cooling and smoke is removed.
Further, the data monitoring of the fire-extinguishing drill module is connected with a monitoring center computer through a Transmission Control Protocol (TCP)/Internet Protocol (IP), receives data of the monitoring center computer in real time for analog display, and displays the data mainly in the form of text, diagrams and videos.
Further, the interactive operation of the fire-extinguishing drill module carries out three-dimensional display in a three-dimensional interaction and animation response mode, the display content comprises fire extinguisher structure demonstration, the fire-extinguishing operation flow display of the fire extinguisher and the like, the interactive operation of the fire-extinguishing drill module comprises operation handle interactive operation and fire extinguisher simulation equipment operation, wherein the operation handle interactive operation replaces the traditional button mouse click operation, the feeling of being personally on the scene is provided, the immersion feeling is promoted, the operation handle interactive operation that can be provided comprises clicking, dragging, moving and the like, when an experiencer wants three-dimensional image 1: 1 when responding to hand movement, the control handle can be used for moving, zooming or rotating an image, thereby enabling an experiencer to draw an image or draw in the world, when the control handle is used for operation, an initial target can be used for collision detection by emitting rays in a virtual environment through the control handle, once a start key on the control handle is clicked, any operation in the virtual environment can be applied to an object in the virtual environment through hand movement operation, and therefore, when the experiencer operates a fire extinguisher, the experiencer can be enabled to freely look around; the fire extinguisher simulation equipment is mainly operated by acquiring various data through a data acquisition unit and making a real-time response in a three-dimensional virtual environment, so that the purposes of operating and using the fire extinguisher are achieved.
Further, the three-dimensional rendering of the fire-fighting drilling module is realized through a visual rendering engine, the visual rendering engine adopts the most advanced three-dimensional graphics rendering engine Unity3D, the engine provides a powerful scene construction function, a texture independent editing and designing function, a support function for various shaders (shaders), a real simulation environment and the like, and the logical hierarchical scene description database enables the image generator to know when and in what way to render the three-dimensional scene in real time with high precision and high reliability, so that a vivid three-dimensional model and vivid textures can be constructed, and multiple texture mixing is supported.
Furthermore, the special effect of the fire-extinguishing drill module is realized by arranging a special effect manager in virtual 3D demonstration software, wherein the special effect manager is used for managing the special effect and comprises a special effect object pool, a plurality of special effect particles with key values are stored in the special effect object pool, the positions and the numbers of the special effect particles in the special effect object pool are stored in a database as key values, and each special effect particle corresponds to one special effect. Therefore, the embodiment can reduce the memory consumption by using the special effect object pool, hide the special effect particles after the special effect playing corresponding to the special effect particles is completed, search whether the hidden special effect exists when the special effect particles are used again, and play the special effect if the hidden special effect exists. The special effect particles comprise a scene special effect and a target special effect, wherein the scene special effect comprises a scene light and shadow special effect, and the target special effect comprises a flame special effect, a smoke special effect, fire extinguishing special effects of various fire extinguishers, a flame change special effect and the like.
Further, the sound effect of the fire extinguishing drilling module is 2D or 3D simulation of the sound effect in the three-dimensional virtual scene of the 3D simulation demonstration software, wherein the 2D sound effect comprises environmental background sound, warning sound and the like, and the formats of MP3, OGG, MAV and the like are supported; the 3D audio can reach the true stereo set simulation of 3D spatial distance according to the different sound effect of distance simulation, can simulate various sound effects to effect such as position, size of simulation sound that can be correct, the 3D audio includes flame burning sound, the collision stereo set of equipment etc.. Based on spatial 3d stereo effect simulation, channel switching is supported, 7.1 channel simulation, stereo surround effect, multiple effect support, and compatibility of multiple types of support, such as MP3, OGG, MAV and other audio formats.
Furthermore, the data acquisition of the fire-extinguishing drill module positions the spatial position of the experiencer in the virtual environment through the positioner, and acquires data such as the posture position of the fire extinguisher, the switch state of a safety catch of the fire extinguisher, the valve angle of the fire extinguisher and the like.
The experiencer can carry out attitude control to the camera visual angle in the three-dimensional virtual environment through the head gyroscope of the AR glasses at the first-person visual angle, and then browsing and viewing of the virtual scene are achieved.
Further, the visual angle control of the fire extinguishing drill module is that the experiencer carries out attitude control on the visual angle of a camera in the three-dimensional virtual environment through a head gyroscope of the AR glasses at the first-person visual angle, and then browsing and checking of the virtual scene are realized.
Further, the data acquisition unit includes gesture collection module, on-off state collection module and signal acquisition box, gesture collection module, on-off state collection module all is connected to the signal acquisition box, wherein, gesture collection module is used for gathering the gesture position of fire extinguisher, on-off state collection module is used for gathering the on-off state of the safety catch of fire extinguisher, valve angle collection module is used for gathering the valve angle of fire extinguisher, the signal acquisition box is used for the gesture position with the fire extinguisher, the on-off state of the safety catch of fire extinguisher, the valve angle of fire extinguisher sends to the terminal, can in time upload the in service behavior of fire extinguisher to the virtual 3D demonstration software of installing at the terminal with experience person from this, make experience person in time master the operational aspect of fire extinguisher.
Preferably, the attitude acquisition module is an attitude sensor, the attitude sensor is mounted on the fire extinguisher, the attitude sensor comprises two modules, one of the two modules is a sending module, the other one of the two modules is a receiving module, the size of the receiving module is 2.5 × 4cm, the attitude acquisition module can infinitely receive a plurality of data items such as quaternions, Euler angles, acceleration, angular acceleration and the like of a plurality of data points, and a wireless sensing mode can be adopted. The use mode of the attitude sensor is as follows: before training, the attitude sensor is vertically fixed on the fire extinguisher, and the rotation angle of the fire extinguisher is identified through different angles of the attitude sensor, so that analog display is performed in a three-dimensional virtual environment, and a trainee has real feeling. The attitude acquisition module is, for example, a 9-axis attitude heading reference system, which is an inertial system that provides high-precision roll, pitch, and azimuth measurements for a dynamic motion environment. The 9-axis attitude heading reference system comprises 9 degree-of-freedom sensors, wherein 3 sensors are acceleration sensors, 3 sensors are magnetic sensors, and 3 sensors are gyroscopes. Through an optimized extended Kalman filtering algorithm, the 9-axis attitude heading reference system can output high-precision attitude information in real time, the 9-axis attitude heading reference system has excellent dynamic performance at the same time, the high precision of dynamic measurement is ensured, and the high cost performance of the 9-axis attitude heading reference system is very suitable for occasions with high heading precision requirements.
Preferably, valve angle acquisition module is angle sensor, and angle sensor installs on the valve of fire extinguisher, and angle sensor's model is DWQT-V for example, and it is 0 ~ 5V/0 ~ 10V voltage output angle sensor.
Preferably, the switch state acquisition module is an IO acquisition card, the IO acquisition card is used for acquiring a plug signal of the safety bolt so as to determine the switch state of the safety bolt, the IO card is installed on the safety bolt of the fire extinguisher, and the IO acquisition card is, for example, a 4-in 4-out serial port IO card.
Preferably, the terminal is of the type of the associating blade 7000.
Preferably, the model of VR glasses is HTC VICE PRO, the VR glasses of this model dispose detachable stereo headphone, this stereo headphone is used for audio output, the VR glasses of this model still support spatial localization, have vibrations feedback function, still can adjust the camera lens distance, adjust interpupillary distance, adjust the bandeau, the VR glasses of this model dispose the operating handle in addition, consequently need not dispose the operating handle in addition, can be interactive with virtual object through the operating handle, and the inductor in the operating handle can be through the space position of laser locator tracking and location experience person in virtual environment.
In addition, in order to enable other observers to observe the operation condition of the experiencer, the fire extinguishing operation practicing system of the embodiment further comprises a display device, and the display device is connected with the terminal, so that the operation condition of the experiencer in the virtual environment can be displayed in real time through the display device.
Preferably, the display device is of the model Dell (DELL) U2417H.
In addition, the method for detecting collision between objects commonly used in the current virtual reality development platform is a simple bounding box method, and the core idea of the simple bounding box method is to approximately describe a complex geometric object by using a bounding box with slightly larger volume and simple geometric characteristics, so that only the objects overlapped by the bounding box need to be subjected to further intersection test. However, this method has certain disadvantages, and especially when the device is relatively complex in shape, the crossing condition occurs, and how to accurately detect the collision between the objects is a difficulty. At present, the problem can be solved by using a hierarchical bounding box method, which is to further divide the model on the basis of a simple bounding box, after the simple bounding box of the model detects a collision, the model is divided into more bounding bodies of the bounding box, whether each small bounding body is collided is further detected, and so on until the highest interpolation level set by a hierarchical bounding box algorithm is detected. However, such an algorithm inevitably occupies a large amount of computation, and especially when dealing with a complex and large system such as the equipment, the increase of the amount of computation inevitably further reduces the system operation speed.
Therefore, it is necessary to design a collision detection algorithm that can accurately detect a collision and has a simple operation. Combining the bounding box collision detection method with the light blocking surface detection algorithm solves this problem. The detection of the light blocking surface is to calculate the plane of the light blocked by other objects in the moving direction of the moving object in real time. Referring to fig. 7, fig. 7 reflects the basic idea of the light blocking collision detection algorithm. The A surface is the light receiving surface of the simple bounding box of the shell, the B surface is the light receiving surface of the simple bounding box of the object in the shell, and the L surface is the current view angle light. When the motion bounding volume collides with the A face, the system will detect the light permeability of the A face, if L receives at the A face and blocks, then judge to collide, otherwise continue to detect on the direction of motion of the collision volume, until the collision volume contacts the C face, satisfy the crossing of bounding volume simultaneously and receive with light and block two conditions when, the system judges to collide. In this system model, the bounding box of the wrench collides with the bounding box of the housing when the wrench is moved to the upper end face of the housing. And detecting the light blocking performance of the collision plane immediately, judging the collision if the light is blocked, otherwise, continuously detecting along with the motion process of the object until two conditions of bounding box collision and light blocking are met simultaneously.
Referring to fig. 8, the present embodiment also describes operations of the virtual 3D demonstration software of the present embodiment, first, the virtual 3D demonstration software is started, which is divided into four parts, namely teaching demonstration, fire extinguishing training, helping and quitting, wherein the teaching demonstration mainly reads an external executable program to describe related knowledge of the fire extinguisher; the scene of a training task can be selected during fire extinguishing training, the task is loaded and displayed after being prepared, the acquired data of the AR glasses and the data acquisition unit are received in real time in the three-dimensional display process and interactively responded in the three-dimensional scene, whether the operation is correct or not is judged in real time, and if the operation is wrong, an operation prompt pops up; ending the training until the task is completed; help mainly implement the relevant operation description of the software; exiting mode enables exiting the virtual 3D presentation software.
This embodiment has gathered the gesture position of fire extinguisher through the data acquisition unit, the data such as the on-off state of the safety catch of fire extinguisher and the valve angle of fire extinguisher, and send it to the terminal, make the virtual 3D demonstration software of terminal installation can real-time reflection experience person to the operating condition of fire extinguisher, in addition, this embodiment still provides the environment position of experience person in virtual environment through the locator in real time, so that experience person can be real experience its fire extinguishing operation rehearsal condition in virtual environment, thereby make the experience person can be quick, accurate grasp the method of putting out a fire.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic data point described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. A VR-based fire suppression operation drilling system, comprising: the device comprises a terminal provided with virtual 3D demonstration software, VR glasses, a locator for providing space location in the VR interactive training process, an operating handle, a fire extinguisher and a data acquisition unit for acquiring the attitude position of the fire extinguisher, the switching state of a safety catch of the fire extinguisher and the valve angle of the fire extinguisher, wherein,
VR glasses, the locator operating handle the data acquisition unit is connected the terminal is connected, the locator install in on the fire extinguisher.
2. The fire extinguishing operation drill system according to claim 1, characterized in that the data collection unit includes:
the attitude acquisition module is used for acquiring the attitude position of the fire extinguisher;
the switch state acquisition module is used for acquiring the switch state of a safety plug of the fire extinguisher;
the valve angle acquisition module is used for acquiring the valve angle of the fire extinguisher;
the signal acquisition box is respectively connected with the attitude acquisition module, the on-off state acquisition module, the valve angle acquisition module and the terminal and is used for sending the attitude position of the fire extinguisher, the on-off state of a safety plug of the fire extinguisher and the valve angle of the fire extinguisher to the terminal.
3. The fire suppression operation drilling system according to claim 2, wherein the attitude acquisition module includes an attitude sensor mounted on the fire extinguisher.
4. The fire suppression operation drilling system according to claim 3, wherein the attitude sensor is a 9-axis attitude heading reference system.
5. The fire extinguishing operation drilling system according to claim 2, wherein the switch state acquisition module comprises an IO card, and the IO card is mounted on a safety catch of the fire extinguisher.
6. The fire suppression operation drilling system according to claim 2, wherein the valve angle acquisition module comprises an angle sensor mounted on a valve of the fire extinguisher.
7. The fire extinguishing operation practicing system according to claim 1, wherein the virtual 3D demonstration software includes a teaching demonstration module and a fire extinguishing exercise module, wherein,
the teaching demonstration module is used for providing the teaching of fire extinguishing knowledge through teaching demonstration;
and the fire extinguishing drilling module is used for carrying out fire extinguishing drilling operation on different firing scenes.
8. The fire suppression operation drilling system of claim 6, wherein the instructional presentation module comprises at least one of text, pictures, multimedia material, audio, video.
9. The fire suppression operation drilling system according to claim 6, wherein the fire suppression drilling module includes a special effect object pool storing a number of special effect particles having key values.
10. The fire extinguishing operation drilling system according to claim 1, further comprising a display device connected to the terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011311582.7A CN112289122A (en) | 2020-11-20 | 2020-11-20 | Fire extinguishing operation drilling system based on VR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011311582.7A CN112289122A (en) | 2020-11-20 | 2020-11-20 | Fire extinguishing operation drilling system based on VR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112289122A true CN112289122A (en) | 2021-01-29 |
Family
ID=74399658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011311582.7A Pending CN112289122A (en) | 2020-11-20 | 2020-11-20 | Fire extinguishing operation drilling system based on VR |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112289122A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599758A (en) * | 2021-08-04 | 2021-11-05 | 武汉理工大学 | Construction method of virtual training system of foam fire engine for urban fire |
-
2020
- 2020-11-20 CN CN202011311582.7A patent/CN112289122A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599758A (en) * | 2021-08-04 | 2021-11-05 | 武汉理工大学 | Construction method of virtual training system of foam fire engine for urban fire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Development of BIM, IoT and AR/VR technologies for fire safety and upskilling | |
| CN106530887B (en) | Fire scene simulating escape method and device | |
| Wang et al. | BIM based virtual environment for fire emergency evacuation | |
| JP6587585B2 (en) | Experiential fire extinguishing training system, fire simulator for fire training, fire simulation method and program for fire training | |
| CN102930753A (en) | Gas station virtual training system and application | |
| US20130104073A1 (en) | Immersive video intelligence network | |
| Vichitvejpaisal et al. | Firefighting simulation on virtual reality platform | |
| Racz et al. | VR aided architecture and interior design | |
| CN116070464B (en) | Virtual reality's well drilling well site simulation system | |
| CN113744585B (en) | Fire accident emergency treatment drilling system and treatment method | |
| CN206363567U (en) | Interactive virtual reality fire drill system | |
| US20180280748A1 (en) | Training system | |
| KR102212241B1 (en) | Fire fighting experience system based on mixed reality | |
| CN112289122A (en) | Fire extinguishing operation drilling system based on VR | |
| EP2284820A1 (en) | Method for training the use of fire-fighting equipment | |
| CN209417968U (en) | A kind of fire-fighting drill electronic sand table based on virtual reality | |
| CN102346981A (en) | System used for virtual fire-fighting drilling and method thereof | |
| Carrozzino et al. | Virtual reality training for post-earthquake rescue operators | |
| CN214202727U (en) | Fire extinguishing operation drilling system based on VR | |
| KR102236752B1 (en) | Fire suppression education system and method using augmented reality | |
| Zeman et al. | Augmented Reality-Aided Indoor Localization and Navigation for Next-Gen Rescue Services | |
| Cruz | Virtual reality in the architecture, engineering and construction industry proposal of an interactive collaboration application | |
| JP5230668B2 (en) | Equipment operation training system, equipment operation training method, program | |
| CN114566073B (en) | Multi-fire-extinguishing scene training device based on mixed reality and control method | |
| KR101838603B1 (en) | Fire extinguisher of augmented reality for training |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |