CN117079513A - Immersive virtual reality fire-fighting exercise system and method - Google Patents

Abstract

The invention belongs to the field of virtual reality technology, and specifically relates to an immersive virtual reality fire drill system and method, which includes a head-mounted display device, a handheld interactive device, a positioning module, a computer, a software system and a somatosensory module; the head-mounted display device is used to display scenes and Transmits the trainee's head orientation to the positioning module; the handheld interactive device is used for interaction and transmits the trainee's hand orientation to the positioning module; the positioning module is used to transmit orientation information to the computer; the computer is used to generate a virtual scene image according to the software system, and according to the orientation The information and interactive information update the virtual scene in real time and send instructions to the somatosensory module; the somatosensory module includes several tracks; each track is slidingly installed with a heat source device; used to adjust the temperature, air volume and output position output to the trainee. The invention aims to solve the problem that virtual reality technology cannot feel the atmosphere of a fire scene through touch, somatosensory and other methods, resulting in insufficient immersion and realism.

Description

Immersive virtual reality fire drill system and method

Technical field

The invention belongs to the field of virtual reality technology, and specifically relates to an immersive virtual reality fire drill system and method.

Background technique

Virtual reality technology is a technology that comprehensively utilizes computer graphics systems and various reality and control interface devices to generate an interactive technology on a computer to provide an immersive feeling in a three-dimensional environment. A head-mounted display device is a device that presents virtual reality in front of people's eyes. It uses a head-mounted display device to close people's vision and hearing to the outside world and guide users to have a feeling of being in a virtual environment. Its display principle is that the left and right eye screens display images for the left and right eyes respectively. After the human eye obtains this differential information, it creates a three-dimensional feeling in the mind. This technology can be used to generate a variety of virtual simulation training systems, among which the fire drill system is a relatively mature one. Trainees can experience and train fire-related operations and common sense in virtual scenes, allowing trainees to experience a more realistic fire scene.

However, with this technology that realizes simulation through computers and simulation equipment, trainees can only experience the fire scene through vision and hearing, and cannot feel the atmosphere of the fire scene through touch, somatosensory, etc., which creates a sense of immersion and reality. Not enough problem.

Therefore, a technical solution can be proposed. By adding auxiliary hardware and under computer control, different heat and air volumes can be generated according to changes in the fire scene, so that trainees can better immerse themselves in the fire scene through somatosensory or tactile sensations. in the atmosphere. In order to solve the problem that virtual reality technology cannot feel the atmosphere of the fire scene through touch, somatosensory and other methods, resulting in insufficient immersion and realism.

Contents of the invention

The present invention proposes a fire drill system incorporating a somatosensory module, which can provide trainees with different somatosensory training environments according to changes in fire intensity in virtual scenes, so that trainees have an immersive feeling. This solves the problem of insufficient immersion and realism in existing virtual simulation technology, which cannot be used to feel the atmosphere of the fire scene through touch, somatosensory and other methods. The specific contents of the present invention are as follows.

An immersive virtual reality fire drill system, including a head-mounted display device, a handheld interactive device, a positioning module, a computer, a software system and a somatosensory module;

The head-mounted display device is worn on the trainee's head and is connected to the positioning module and the computer through wireless means to display the virtual scene of the fire drill and transmit the trainee's head position to the computer;

The handheld interactive device is connected to the positioning module and the computer through wireless means, for the trainee to interact with the fire drill virtual scene, and to transmit the trainee's hand position to the computer;

The positioning module is arranged around the trainee, wirelessly connected to the computer, and used to send positioning information to the head-mounted display device and handheld interactive device;

The computer is pre-installed with the software system and is used to generate virtual scene images according to the software system and transmit them to the head-mounted display device. According to the orientation information of the head-mounted display device and the handheld interactive device and the handheld interactive device, The interactive information of the device updates the virtual scene in real time, and sends instructions to the somatosensory module according to changes in the virtual scene;

The somatosensory module includes several tracks arranged around the training venue; each track is slidably mounted with a heat source device; the heat source device communicates with the computer for receiving and adjusting according to the computer instructions. Temperature, air volume and output location of the output to the trainee.

Further, the heat source device includes a hot air fan; the hot air fan is used to output temperature and air volume to the trainee.

Further, the heat source device includes a temperature controller; the temperature controller is arranged at the air outlet of the hot air fan, is electrically connected to the computer, and is used to receive computer instructions and adjust the output temperature and temperature of the hot air fan according to the instructions. Air volume.

Further, a driving part is installed at the lower end of the hot air blower; the driving part is slidingly connected to the track and electrically connected to the computer, for receiving computer instructions and adjusting the position of the hot air blower according to the instructions.

Further, the driving part includes a stepper motor; a rack is provided inside the track; and a driving gear matching the rack is provided at one end of the stepper motor.

Further, the number of the tracks and heat source devices is 4; the 4 tracks are evenly arranged around the training venue; the tracks are arranged perpendicular to the ground.

Further, the track is in an arc shape and is laid flat on the ground and evenly arranged around the training venue.

Further, a bus duct for sliding contact wires is provided in the track; the stepper motor is provided with a current collector; and the current collector is provided with a brush that matches the bus duct.

An immersive virtual reality fire drill method, the method includes:

S1, preset virtual three-dimensional scene of fire drill;

S2, use the heat source device to output heat and air volume to the trainee, and the computer converts the temperature and wind speed set according to the environment in the virtual scene into electrical signals and transmits them to the temperature controller;

S3. The trainee performs fire drills according to the virtual scene, and uses the head-mounted display device and the handheld interactive device to send positioning information and fire-fighting interaction information to the computer; the fire-fighting instruction information includes the selection of fire-fighting equipment and the opening of fire-fighting equipment. and close;

S4. After receiving the positioning information and the fire-extinguishing interaction information sent by the head-mounted display device and the handheld interactive device, the computer updates the virtual scene in real time and completes the response to the positioning information and the fire-extinguishing interaction information;

S5, the computer transmits the updated virtual scene and the data corresponding to the positioning information and fire extinguishing interaction information to the head-mounted display device and the heat source device respectively. The trainee will observe the new virtual scene and feel different The temperature and air volume of the location.

S1 preset fire drill virtual 3D scenes include:

S11, use three-dimensional modeling to construct a fire virtual scene;

S12, use the virtual simulation engine to design and simulate the shape and combustion trend of the flame at the fire scene, convert it into numerical values of temperature and air volume according to the burning degree of the flame, and transfer the numerical values to the heat source device to provide trainees with information about the fire intensity at the fire scene. The physical sensation of temperature and air volume corresponding to the location;

S13, use the virtual simulation engine to design a fire extinguishing interactive program. The trainee can observe the real-time virtual scene through the head-mounted display device, and can implement interactive functions with the virtual scene through the handheld interactive device.

The beneficial effects of the present invention are: by arranging a somatosensory module in the system, trainees can feel the atmosphere of the fire scene, and the somatosensory module can adjust the temperature, air volume and position output to the trainees according to changes in fire intensity in the virtual scene. Better experience the real environment of the fire scene to solve the problem that existing virtual reality technology cannot feel the atmosphere of the fire scene through touch, somatosensory and other methods, resulting in insufficient immersion and realism.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall deployment of the immersive virtual reality fire drill system;

Figure 2 is the control flow chart of the immersive virtual reality fire drill system.

In the picture: 1. Somatosensory module; 101. Heat source device; 102. Track; 103. Stepper motor; 2. Computer; 3. Head-mounted display device; 4. Handheld interactive device; 5. Positioning module.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations of the invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

An immersive virtual reality fire drill system, as shown in Figure 1, includes a head-mounted display device 3, a handheld interactive device 4, a positioning module 5, a computer 2, a software system and a somatosensory module 1.

The head-mounted display device 3 is worn on the trainee's head and is connected to the positioning module 5 and the computer 2 through wireless means for displaying the fire drill virtual scene and transmitting the trainee's head position to the computer 2 .

The handheld interactive device 4 is connected to the positioning module 5 and the computer 2 through wireless means, for the trainee to interact with the fire drill virtual scene, and to transmit the trainee's hand position to the computer 2.

The positioning module 5 is arranged around the trainee and is connected to the computer 2 through wireless means for sending positioning information to the head-mounted display device 3 and the handheld interactive device 4 . It should be noted that the positioning module 5 radiates its own position data, device number and the current time through the infrared light emitted by itself into the space through the positioning device. The head-mounted display device 3 and the handheld interactive device 4 receive the data of the positioning device and can Calculate the relative position between itself and the positioning device, and transmit the orientation information to the computer 2 to realize positioning in the virtual scene.

Computer 2 has a pre-installed software system inside, which is used to generate virtual scene images according to the software system and transmit them to the head-mounted display device 3, and update the virtual scene in real time according to the orientation information of the head-mounted display device 3 and the handheld interactive device 4 and the interactive information of the handheld interactive device 4. scene, and sends instructions to the somatosensory module 1 according to changes in the virtual scene.

The somatosensory module 1 includes several tracks 102 arranged around the training venue. Each track 102 is slidably mounted with a heat source device 101 . The heat source device 101 implements information communication with the computer 2, and is used to receive and adjust the temperature, air volume and output position output to the trainee according to the instructions of the computer 2.

In the specific implementation, by adding the somatosensory module 1, heat and air volume can be output to different positions of the trainee's body. The trainee can experience the atmosphere of the fire scene and increase the somatosensory feeling, thus making the immersion of virtual reality more realistic. It solves the problem that existing virtual reality technology cannot feel the atmosphere of the fire scene through touch, somatosensory and other methods, resulting in insufficient immersion and realism.

According to an embodiment of the present invention, as shown in FIG. 1 , the heat source device 101 includes a hot air blower. The hot air blower is used to output temperature and air volume to the trainee. The heat source device 101 also includes a temperature controller. The temperature controller is arranged at the air outlet of the hot air fan and is electrically connected to the computer 2 for receiving instructions from the computer 2 and adjusting the output temperature and air volume of the hot air fan according to the instructions. It should be noted that the temperature controller can automatically adjust the output temperature and air volume of the hot air fan after receiving instructions from the computer 2. The computer 2 sends the temperature control to the temperature controller based on changes in the size of the fire in the virtual scene, the position relative to the trainee, and the spread of the fire. Send instructions to adjust temperature and air volume.

In the specific implementation, a hot air blower and a temperature controller were added, allowing trainees to personally feel the atmosphere of the fire scene during the training, not only visually and auditorily, but also to physically feel the temperature of the fire scene. Changes provide a better sense of immersion for fire simulation drills.

According to the embodiment of the present invention, as shown in Figure 1, a driving part is installed at the lower end of the hot air blower. The driving part is slidingly connected to the track 102 and electrically connected to the computer 2 for receiving instructions from the computer 2 and adjusting the position of the hot air blower according to the instructions. The driving section includes a stepping motor 103 . The track 102 is provided with a rack inside. One end of the stepper motor 103 is provided with a driving gear that matches the rack. It should be noted that the track 102 and the driving part are added, and the driving part is connected to the computer 2. It can receive instructions from the computer 2 to drive the hot air blower to move on the track 102. The computer 2 sends instructions to the driving part according to changes in the fire intensity in the scene. For example, in a forest fire, the intensity of the forest fire will spread according to the change of natural wind direction, which means that the intensity of the fire at the fire site is not static. Therefore, the hot air blower is designed as a movable structure on the track 102 in order to allow the trainees to experience the physical sensation of the changes in fire intensity.

In the specific implementation, a structure is added that the hot air blower can change its position as the fire intensity changes, so that the trainees have a better experience.

According to the embodiment of the present invention, as shown in FIG. 1 , the number of tracks 102 and heat source devices 101 are both four. Four tracks 102 are evenly arranged around the training venue. The track 102 is arranged perpendicular to the ground.

In the specific implementation, four tracks 102 are arranged perpendicular to the ground, and four hot air fans can move up and down in the vertical direction, which can simulate the effects of gradually increasing the fire intensity, increasing the flames, and reducing the flames after the fire weakens.

In another embodiment, the track 102 is in an arc shape and is laid flat on the ground and evenly arranged around the training field.

In the specific implementation, the hot air machine makes arc motion around the trainee, which can simulate the effect of the gradual spread of fire and increase the trainee's physical sensation.

According to the embodiment of the present invention, bus ducts for trolley wires are provided in the track 102 . The stepping motor 103 is provided with a current collector. The current collector is provided with brushes that match the bus duct.

In specific implementation, if the stepper motor 103 is connected through a cable, the hot air blower will cause the cable to be tangled during movement. Therefore, the structure of the sliding contact wire and the current collector can prevent the cable from being tangled and the structure is simple and concise.

An immersive virtual reality fire drill method, including:

S1, preset virtual three-dimensional scene of fire drill;

S2, use the heat source device to output heat and air volume to the trainee, and the computer converts the temperature and wind speed set according to the environment in the virtual scene into electrical signals and transmits them to the temperature controller;

In S3, trainees perform fire drills based on virtual scenarios, using head-mounted displays and handheld interactive devices to send positioning information and fire-fighting interaction information to the computer; fire-fighting instruction information includes the selection of fire-fighting equipment and the opening and closing of fire-fighting equipment;

S4, after the computer receives the positioning information and fire-fighting interaction information sent by the head-mounted display device and the handheld interactive device, it updates the virtual scene in real time and completes the response to the positioning information and fire-fighting interaction information;

In S5, the computer transmits the updated virtual scene, positioning information, and fire extinguishing interaction information response data to the head-mounted display device and the heat source device respectively. The trainee will observe the new virtual scene and feel the temperature and air volume at different locations.

S1 preset fire drill virtual 3D scenes include:

S11, use three-dimensional modeling to construct a fire virtual scene;

S12, use the virtual simulation engine to design and simulate the shape and combustion trend of the flame at the fire scene, convert it into values of temperature and air volume according to the burning degree of the flame, and transfer the values to the heat source device to provide trainees with information corresponding to the fire location at the fire scene. The physical sensation of temperature and air volume;

S13, use the virtual simulation engine to design a fire-fighting interactive program. Trainees can observe the real-time virtual scene through the head-mounted display device, and can interact with the virtual scene through the handheld interactive device.

The overall process of the fire drill system can be referred to Figure 2.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as illustrative and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is therefore intended that all claims falling within the claims All changes within the meaning and scope of equivalent elements are included in the present invention. Any reference signs in the claims shall not be construed as limiting the claim in question.

In addition, it should be understood that although this specification is described in terms of implementations, not each implementation only contains an independent technical solution. This description of the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole. , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. An immersive virtual reality fire drill system, characterized by including a head-mounted display device, a handheld interactive device, a positioning module, a computer, a software system and a somatosensory module; The head-mounted display device is worn on the trainee's head and is connected to the positioning module and the computer through wireless means to display the virtual scene of the fire drill and transmit the trainee's head position to the computer; The handheld interactive device is connected to the positioning module and the computer through wireless means, for the trainee to interact with the fire drill virtual scene, and to transmit the trainee's hand position to the computer; The positioning module is arranged around the trainee, wirelessly connected to the computer, and used to send positioning information to the head-mounted display device and handheld interactive device; The computer is pre-installed with the software system and is used to generate virtual scene images according to the software system and transmit them to the head-mounted display device. According to the orientation information of the head-mounted display device and the handheld interactive device and the handheld interactive device, The interactive information of the device updates the virtual scene in real time, and sends instructions to the somatosensory module according to changes in the virtual scene; The somatosensory module includes several tracks arranged around the training venue; each track is slidably mounted with a heat source device; the heat source device communicates with the computer for receiving and adjusting according to the computer instructions. Temperature, air volume and output location of the output to the trainee. 2. The immersive virtual reality fire drill system according to claim 1, wherein the heat source device includes a hot air fan; the hot air fan is used to output temperature and air volume to the trainee. 3. The immersive virtual reality fire drill system according to claim 2, wherein the heat source device includes a temperature controller; the temperature controller is arranged at the air outlet of the hot air fan and is connected with the computer computer. Sexual connection, used to receive computer instructions and adjust the output temperature and air volume of the hot air blower according to the instructions. 4. The immersive virtual reality fire drill system according to claim 2, wherein a driving part is installed at the lower end of the hot air blower; the driving part is slidingly connected to the track and electrically connected to the computer. , used to receive computer instructions and adjust the position of the hot air blower according to the instructions. 5. The immersive virtual reality fire drill system according to claim 4, wherein the driving part includes a stepper motor; a rack is provided inside the track; and one end of the stepper motor is provided with a gear. The drive gear matched with the rack. 6. The immersive virtual reality fire drill system according to claim 1, characterized in that the number of the tracks and heat source devices is 4; the 4 tracks are evenly arranged around the training venue; The tracks are arranged perpendicular to the ground. 7. The immersive virtual reality fire drill system according to claim 1, wherein the track is arc-shaped and is laid flat on the ground and evenly arranged around the training site. 8. The immersive virtual reality fire drill system according to claim 6 or 7, characterized in that a bus trough for sliding contact lines is provided in the track; the stepper motor is provided with a current collector; the current collector A brush matching the bus duct is provided. 9. An immersive virtual reality fire drill method, characterized in that it is applied to the immersive virtual reality fire drill system according to any one of claims 1 to 8, and the method includes: S1, preset virtual three-dimensional scene of fire drill; S2, use the heat source device to output heat and air volume to the trainee, and the computer converts the temperature and wind speed set according to the environment in the virtual scene into electrical signals and transmits them to the temperature controller; S3. The trainee performs fire drills according to the virtual scene, and uses the head-mounted display device and the handheld interactive device to send positioning information and fire-fighting interaction information to the computer; the fire-fighting instruction information includes the selection of fire-fighting equipment and the opening of fire-fighting equipment. and close; S4. After receiving the positioning information and the fire-extinguishing interaction information sent by the head-mounted display device and the handheld interactive device, the computer updates the virtual scene in real time and completes the response to the positioning information and the fire-extinguishing interaction information; S5, the computer transmits the updated virtual scene and the data corresponding to the positioning information and fire extinguishing interaction information to the head-mounted display device and the heat source device respectively. The trainee will observe the new virtual scene and feel different The temperature and air volume of the location. 10. The S1 preset fire drill virtual three-dimensional scene according to claim 9, characterized in that it includes: S11, use three-dimensional modeling to construct a fire virtual scene; S12, use the virtual simulation engine to design and simulate the shape and combustion trend of the flame at the fire scene, convert it into numerical values of temperature and air volume according to the burning degree of the flame, and transfer the numerical values to the heat source device to provide trainees with information about the fire intensity at the fire scene. The physical sensation of temperature and air volume corresponding to the location; S13, use the virtual simulation engine to design a fire extinguishing interactive program. The trainee can observe the real-time virtual scene through the head-mounted display device, and can implement interactive functions with the virtual scene through the handheld interactive device.