CN214202727U - Fire extinguishing operation drilling system based on VR - Google Patents

Abstract

The utility model discloses an operation rehearsal system of putting out a fire based on VR, include: the method comprises the following steps: terminal, VR glasses, locator, operating handle, fire extinguisher and signal acquisition unit, wherein, the VR glasses the locator operating handle signal acquisition unit connects the terminal connection, the locator install in on the fire extinguisher, signal acquisition unit includes gesture collection module, on-off state collection module, valve angle collection module and signal acquisition box, wherein, the signal acquisition box is connected respectively gesture collection module on-off state collection module valve angle collection module with the terminal. The utility model discloses a fire extinguishing operation drilling system makes experience person can be real experience its fire extinguishing operation drilling condition in virtual environment to make experience person can be quick, accurate grasp the method of putting out a fire.

Description

Fire extinguishing operation drilling system based on VR

Technical Field

The utility model belongs to the technical field of virtual reality and fire safety, concretely relates to operation rehearsal system of putting out a fire 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.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems existing in the prior art, the utility model provides a fire extinguishing operation drilling system based on VR. The to-be-solved technical problem of the utility model is realized through following technical scheme:

a VR-based fire suppression operations drilling system, comprising: terminal, VR glasses, locator, operating handle, fire extinguisher and signal acquisition unit, wherein,

VR glasses the locator operating handle the signal acquisition unit includes gesture collection module, on off state collection module, valve angle collection module and signal acquisition box, wherein, the signal acquisition box is connected respectively gesture collection module on off state collection module valve angle collection module with the terminal.

The utility model discloses an in one embodiment, gesture collection module includes attitude sensor, attitude sensor install in on the fire extinguisher.

In an embodiment of the present invention, the attitude sensor is a 9-axis attitude heading reference system.

In an embodiment of the present invention, the switch state acquisition module includes an IO card, and the IO card is installed on the safety plug of the fire extinguisher.

In an embodiment of the present invention, the IO card is a 4-in 4-out IO card.

The utility model discloses an in one embodiment, valve angle collection module includes angle sensor, angle sensor install in on the valve of fire extinguisher.

In an embodiment of the present invention, the mobile terminal further comprises a display device, and the display device is connected to the terminal.

The utility model has the advantages that:

the utility model discloses a data acquisition unit has gathered the gesture position of fire extinguisher, 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 terminal installation's virtual 3D demonstration software can real-time reflection experience person to the operational aspect 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 experience person can be quick, the accurate method of putting out a fire of mastering.

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 extinguishing operation drilling system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a fire extinguishing operation practicing system according to an embodiment of the present invention;

fig. 3 is a schematic diagram of virtual 3D demonstration software 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 present invention is 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 utility model provides an operation rehearsal system puts out a fire based on VR, this operation rehearsal system of putting out a fire includes: 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:

the experiencer can know the fire-fighting equipment and master the performance and the use method of the fire-fighting equipment.

Introduction of fire-fighting identification: the experiencer can know the fire fighting identification and master the meaning of the identification.

3) Introduction to the use of fire extinguishers:

the fire extinguisher is for example a portable ABC dry powder fire extinguisher, and the use instructions are as follows: 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.

The operation of the virtual 3D presentation software of the present embodiment is described: firstly, virtual 3D demonstration software is started and comprises four parts of teaching demonstration, fire extinguishing training, helping and quitting, wherein the teaching demonstration mainly reads an external executable program to explain the 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 limited 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 present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (7)

1. A VR-based fire suppression operation drilling system, comprising: terminal, VR glasses, locator, operating handle, fire extinguisher and signal acquisition unit, wherein,

the VR glasses, the positioner, the operating handle and the signal acquisition unit are connected with the terminal, and the positioner is arranged on the fire extinguisher;

the signal acquisition unit comprises an attitude acquisition module, an on-off state acquisition module, a valve angle acquisition module and a signal acquisition box, wherein 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.

2. The fire suppression operation drilling system according to claim 1, wherein the attitude acquisition module includes an attitude sensor mounted on the fire extinguisher.

3. The fire suppression operation drilling system according to claim 2, wherein the attitude sensor is a 9-axis attitude heading reference system.

4. The fire extinguishing operation drilling system according to claim 1, wherein the switch state acquisition module comprises an IO card installed on a safety catch of the fire extinguisher.

5. The fire suppression operation drilling system according to claim 4, wherein the IO card is a 4-in 4-out IO card.

6. The fire suppression operation drilling system according to claim 1, wherein the valve angle acquisition module comprises an angle sensor mounted on a valve of the fire extinguisher.

7. The fire extinguishing operation drilling system according to claim 1, further comprising a display device connected to the terminal.

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