CN113342171A - Method and device for generating touchable entity in real time in virtual reality space - Google Patents
Method and device for generating touchable entity in real time in virtual reality space Download PDFInfo
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- CN113342171A CN113342171A CN202110662656.XA CN202110662656A CN113342171A CN 113342171 A CN113342171 A CN 113342171A CN 202110662656 A CN202110662656 A CN 202110662656A CN 113342171 A CN113342171 A CN 113342171A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
- E04H2015/206—Details of inflation devices, e.g. valves, connections to fluid pressure source
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/01—Indexing scheme relating to G06F3/01
- G06F2203/012—Walk-in-place systems for allowing a user to walk in a virtual environment while constraining him to a given position in the physical environment
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Abstract
The invention provides a method and a device for generating a tangible entity in real time in a virtual reality space, wherein the device comprises the following steps: the base is provided with a plurality of inflatable flexible telescopic units; the air pump provides power for the inflatable flexible telescopic unit; one end of each air path is communicated with one inflatable flexible telescopic unit, the other end of each air path is communicated with the air pump, and each air path is provided with an electromagnetic valve; and the controller is electrically connected with each electromagnetic valve and the server and is used for controlling the opening degree of the electromagnetic valves so as to control the length of the inflatable flexible telescopic unit to generate the touchable entity. The touchable entity generated in real time by the device and the method is a flexible entity, and potential safety hazards cannot be brought to virtual reality experience.
Description
Technical Field
The invention belongs to the technical field of virtual reality, and particularly relates to a method and a device for generating a tangible entity in real time in a virtual reality space.
Background
In the experience process of virtual reality application, real tactile feedback can cause people to generate feelings that the virtual reality and the reality are indistinct, so many technical schemes for reproducing the tactile sensation through simulation are provided, such as existing force feedback gloves and force feedback clothes, but the technologies only give people the feeling of touching the outer surface of a virtual object by applying vibration or pressure to the skin, when the people further approach the virtual object or want to apply larger force to the virtual object, at the moment, because the action range of a force feedback unit exceeds the design threshold value, stronger stimulation cannot be applied to the skin, people can generate sudden feeling of touch, and the immersion feeling of the virtual reality experience is greatly reduced.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide a method and a device for generating a touchable entity in real time in a virtual reality space, so as to solve the problems that in the prior art, when a person approaches a virtual object further or wants to apply larger force to the virtual object, stronger stimulation cannot be applied to the skin, and the immersion of the virtual reality experience is greatly reduced.
In order to achieve the above purpose, the invention provides the following technical scheme:
an apparatus for generating a tangible entity in real-time in a virtual reality space, comprising:
a base provided with a plurality of inflatable flexible telescopic units;
the air pump provides power for the inflatable flexible telescopic unit;
one end of each air path is communicated with one inflatable flexible telescopic unit, the other end of each air path is communicated with the air pump, and each air path is provided with an electromagnetic valve; and
the controller is electrically connected to each electromagnetic valve and the server and used for controlling the opening degree of the electromagnetic valves so as to control the length of the inflatable flexible telescopic unit to generate a touchable entity.
As a preferable scheme of the above device for generating a tangible entity in real time in a virtual reality space, the base includes a housing and a fixing member disposed on an inner wall of the housing, the fixing member is provided with a plurality of guide holes, and the inflatable flexible telescopic unit is correspondingly fixed in the guide holes.
As a preferable embodiment of the above apparatus for generating a tangible entity in real time in a virtual reality space, the housing is made of metal or plastic, and the housing is cylindrical.
As a preferable embodiment of the above apparatus for generating a tangible entity in real time in a virtual reality space, a plurality of the guide holes are uniformly provided on an inner wall of the housing; preferably, the plurality of guide holes are arranged in a honeycomb shape.
As a preferred embodiment of the above apparatus for generating a tangible entity in real time in a virtual reality space, the controller includes a core board and a multiplexing DA interface board, the core board is electrically connected to the server, and the multiplexing DA interface board is electrically connected to each of the electromagnetic valves.
The invention also proposes a method for generating a tangible entity in real time in a virtual reality space, using an apparatus for generating a tangible entity in real time in a virtual reality space as described above, the method comprising the steps of:
acquiring touchable virtual bodies around a user in a virtual space;
and generating a touchable entity at the corresponding position in the real space according to the position and the shape of the virtual body.
As a preferable embodiment of the above method for generating a tangible entity in real time in a virtual reality space, the step of generating a tangible entity at a corresponding position in the real space according to the position and shape of the virtual body includes:
determining a target inflatable flexible telescopic unit according to the position and the shape of the virtual body;
determining the expansion amplitude of the target inflatable flexible expansion unit;
and the controller controls the target inflatable flexible telescopic unit to perform telescopic motion according to the telescopic amplitude to generate a touchable entity.
As a preferable scheme of the above method for generating the touchable entity in real time in the virtual reality space, each inflatable flexible telescopic unit has a unique ID value, and the position of each inflatable flexible telescopic unit is known, and the inflatable flexible telescopic unit with the corresponding ID value is determined according to the position and the shape of the virtual body, that is, the target inflatable flexible telescopic unit.
As a preferable solution of the above method for generating a tangible entity in real time in a virtual reality space, the step of the controller controlling the telescopic motion of the target inflatable flexible telescopic unit according to the telescopic amplitude includes:
the controller determines the ventilation volume of an air passage connected with the target inflatable flexible telescopic unit according to the telescopic amplitude;
determining the opening of the electromagnetic valve on the corresponding gas circuit according to the ventilation quantity;
and the controller controls the target inflatable flexible telescopic unit to perform telescopic motion according to the opening degree of the electromagnetic valve, so that a touchable entity is generated.
As a preferable solution of the above method for generating a tangible entity in real time in a virtual reality space, the controller controls the target inflatable flexible telescopic unit to move telescopically according to the telescopic amplitude, and the step of generating a tangible entity includes:
after the controller receives the stretching amplitude of the target inflatable flexible stretching unit, the core board converts the stretching amplitude into a digital control signal of ventilation;
transmitting the digital control signal to the multiplexing DA interface board;
and the multiplexing DA interface board controls the opening of a solenoid valve on an air passage connected with the target inflatable flexible telescopic unit, controls the telescopic motion of the target inflatable flexible telescopic unit and generates a touchable entity.
Has the advantages that:
the device and the method for generating the touchable entity in real time at the corresponding position of the virtual object in the real space according to the position and the shape of the virtual object in the virtual reality scene can provide the sense of reality for the user. In addition, the touchable entity generated in real time by the device and the method is a flexible entity, and potential safety hazards cannot be brought to virtual reality experience.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:
FIG. 1 is a schematic diagram of an embodiment of an apparatus for real-time generation of tangible entities in virtual reality space in accordance with the present invention;
FIG. 2 is a schematic diagram of a controller according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of an embodiment of a method for real-time generation of tangible entities in virtual reality space according to the present invention;
FIG. 4 is a flow chart illustrating a detailed step of step S20 in the method of the present invention;
FIG. 5 is a flowchart illustrating a detailed step of step S23 in the method of the present invention;
FIG. 6 is a flowchart illustrating a further detailed step of step S23 in the method of the present invention;
FIG. 7 is a schematic diagram of virtual walls and virtual obstacles in a VR scene according to the present invention;
FIG. 8 is a schematic view of a solid wall and solid barrier made up of inflatable flexible telescoping units according to the present invention;
FIG. 9 is a schematic diagram of a VR scene with virtual dropouts according to the invention;
fig. 10 is a schematic view of the solid falling object composed of the inflatable flexible telescopic unit of the present invention.
Reference numerals: 1. a base; 2. an inflatable flexible telescoping unit; 3. an air pump; 4. a gas circuit; 41. an electromagnetic valve; 5. a controller; 51. a core board; 52. and multiplexing DA interface boards.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The present invention will be described in detail with reference to examples. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
According to the device and the method for generating the touchable entity in real time at the corresponding position of the real space according to the position and the shape of the virtual object in the virtual reality scene, the touchable entity generated in real time by the device and the method is a flexible entity, and potential safety hazards cannot be brought to virtual reality experience.
As shown in fig. 1, the apparatus for real-time generation of touchable entities in virtual reality space according to the present invention comprises: base 1, air pump 3, a plurality of gas circuit 4 and controller 5, base 1 is provided with a plurality of inflatable flexible telescopic unit 2, air pump 3 provides power for inflatable flexible telescopic unit 2, the one end of every gas circuit 4 communicates in an inflatable flexible telescopic unit 2, the other end communicates in air pump 3, and all set up an solenoid valve 41 on each gas circuit 4, solenoid valve 41 adopts miniature solenoid valve, the accurate control of being convenient for inflatable flexible telescopic unit 2's length. The controller 5 is electrically connected to each electromagnetic valve 41 and the server through a connecting wire, so that the controller 5 can control the opening degree of the electromagnetic valves 41 during operation, gas is transmitted to the corresponding inflatable flexible telescopic units 2 through the corresponding gas paths 4, and the inflatable flexible telescopic units 2 perform telescopic motion under the action of air pressure to reach the required length so as to generate a touchable entity.
In a preferred embodiment of the present invention, the base 1 comprises a housing (not shown) and a fixing member (not shown) disposed on an inner wall of the housing, the fixing member is provided with a plurality of guide holes (not shown), and the inflatable flexible telescopic unit 2 is correspondingly fixed in the guide holes. The guide hole is substantially in the shape of a long strip, and the inflatable flexible telescopic unit 2 can perform telescopic movement to reach the required length.
In the preferred embodiment of the invention, the shell is made of metal or plastic and is cylindrical.
In the preferred embodiment of the present invention, the plurality of guide holes are uniformly disposed on the inner wall of the housing.
More preferably, the plurality of guide holes are arranged in a honeycomb shape.
It should be noted that the direction of the telescopic movement of the inflatable flexible telescopic unit 2 is perpendicular to the axis of the cylindrical housing.
As shown in fig. 2, in an alternative embodiment of the present invention, the controller 5 includes a core board 51 and a multiplexing DA interface board 52, which are electrically connected, the core board 51 is electrically connected to the server, and the multiplexing DA interface board 52 is electrically connected to each solenoid valve.
The multiplexing DA interface board 51 is provided with a plurality of connectors electrically connected to each solenoid valve 41, so that the opening degree of each solenoid valve 41 can be controlled individually.
It should be noted that the device of the present invention is fixed, and the fixed device is suitable for occasions where the physical position of a person does not move, including sitting type and standing type virtual reality experiences, and virtual reality experiences using a universal treadmill.
Centered on the experiencer, around which is arranged a cylindrical tangible generating means that is fixed in place for fixed implementations and will move by tracking the experiencer location and following the experiencer for movable solutions.
The invention also provides a method for generating a tangible entity in a virtual reality space, which adopts the device for generating the tangible entity in the virtual reality space. As shown in fig. 3, the method comprises the steps of:
step S10, acquiring a tangible virtual body around the user in the virtual space;
and step S20, generating a touchable entity at the corresponding position in the real space according to the position and the shape of the virtual body.
The virtual body touchable in step S10 is a fixed virtual body. Specifically, the current position of the experiencer is determined in the virtual reality space, and the position is used for determining the touchable range of the experiencer in the virtual reality space, and the contactable range is generally a gourd-shaped space area. For safety reasons, a safety space (not a gourd shape) slightly larger than the human body is defined, and the maximum threshold value of each inflatable telescopic unit is set so that all the inflatable telescopic units cannot invade the space.
In a preferred embodiment of the present invention, as shown in fig. 4, step S20, generating a tangible entity at a corresponding position in real space according to the position and shape of the virtual body, includes:
step S21, determining a target inflatable flexible telescopic unit according to the position and the shape of the virtual body;
step S22, determining the expansion and contraction amplitude of the target inflatable flexible expansion and contraction unit;
and step S23, the controller controls the target inflatable flexible telescopic unit to do telescopic motion according to the telescopic amplitude, and a touchable entity is generated.
In a preferred embodiment of the present invention, as shown in fig. 5, the step of the controller controlling the telescopic motion of the target inflatable flexible telescopic unit according to the telescopic amplitude at step S23 includes:
step S231, the controller determines the ventilation volume of the air path connected with the target inflatable flexible telescopic unit according to the telescopic amplitude;
step S232, determining the opening of the electromagnetic valve on the corresponding gas circuit according to the ventilation quantity;
and step S233, the controller controls the target inflatable flexible telescopic unit to perform telescopic motion according to the opening degree of the electromagnetic valve, and a touchable entity is generated.
In a preferred embodiment of the present invention, as shown in fig. 6, in step S23, the step of generating the touchable entity includes:
step S23a, after the controller receives the stretching amplitude of the target inflatable flexible stretching unit, the core board converts the stretching amplitude into a digital control signal of ventilation;
step S23b, transmitting the digital control signal to a multiplexing DA interface board;
and step S23c, controlling the opening of a solenoid valve on an air path connected with the target inflatable flexible telescopic unit by the multiplexing DA interface board, controlling the telescopic motion of the target inflatable flexible telescopic unit, and generating a touchable entity.
Because each inflatable flexible telescopic unit has a unique ID value and the position of each inflatable flexible telescopic unit is known, the length of the inflatable flexible telescopic unit needing to be extended of the entity ID can be calculated according to a virtual scene, and the specific calculation flow is as follows:
acquiring touchable virtual bodies around a user in a virtual space;
determining which inflatable flexible telescopic units with ID values need to move according to the position and the shape of the virtual body, namely determining the inflatable flexible telescopic units as target inflatable flexible telescopic units;
determining the expansion amplitude of the inflatable flexible expansion unit with each ID value;
and after receiving the stretching amplitude of the target inflatable flexible telescopic unit, the multiplexing DA interface board controls the opening degree of an electromagnetic valve on a gas path connected with the target inflatable flexible telescopic unit, and then the target inflatable flexible telescopic unit is jacked up through the gas of the corresponding gas path to reach the length to be stretched, so that a touchable entity consistent with the virtual body is generated.
It should be noted that there is a one-to-one correspondence relationship between the stretching amplitude, the ventilation volume, and the opening of the solenoid valve, and the correspondence relationship may be stored in a mapping table in advance, and during a specific operation, the opening of the solenoid valve corresponding to the stretching amplitude may be found according to the mapping table, and then the corresponding operation may be performed according to the opening of the solenoid valve. It can be understood that when the expansion amplitude of the target inflatable flexible expansion unit is large, the required ventilation volume is also large, the opening degree of the electromagnetic valve is large, and the gas volume introduced into the gas path is large, so that the target inflatable flexible expansion unit can extend to reach a large length. On the contrary, when the expansion amplitude of the target inflatable flexible expansion unit is smaller, the amount of gas introduced into the gas path is smaller, and further the opening degree of the electromagnetic valve is smaller, so that the target inflatable flexible expansion unit is extended to reach a shorter length.
The method and apparatus for generating a tangible entity in virtual reality space of the present invention are described in detail below with reference to specific embodiments.
Example 1
In this embodiment, a virtual fixed object is simulated, as shown in fig. 7 and 8, when obstacles such as walls and stones appear in a VR scene, a tangible virtual body is resolved, and a tangible entity consistent with the virtual body is generated according to the following steps, specifically as follows:
(1) acquiring touchable virtual bodies (such as virtual walls and virtual obstacles) around a user in a virtual space;
(2) determining which inflatable flexible telescopic units with ID values need to move according to the position and the shape of the virtual body, namely determining the inflatable flexible telescopic units as target inflatable flexible telescopic units;
(3) determining the expansion amplitude of the inflatable flexible expansion unit with each ID value;
(4) and after receiving the expansion amplitude of the target inflatable flexible telescopic unit, the core board converts the expansion amplitude into a digital control signal of the ventilation volume and transmits the digital control signal to the multiplexing DA interface board, and the multiplexing DA interface board controls the opening of an electromagnetic valve on a gas path connected with the target inflatable flexible telescopic unit, so that the target inflatable flexible telescopic unit is jacked up by the gas of the corresponding gas path to reach the length to be expanded and contracted, and a touchable entity (namely a solid wall and a solid obstacle) consistent with the virtual body is generated.
Since the same-shaped object is generated on site in the VR scene, the user can obtain a real sense of touch.
Example 2
In the embodiment, as shown in fig. 9 and 10, when a falling object occurs in a VR scene, touchable virtual falling object calculation is performed, and a touchable entity consistent with a virtual body is generated according to the following steps, specifically as follows:
(1) determining which inflatable flexible telescopic units with ID values need to move according to the position and the shape of the virtual falling object, namely determining the inflatable flexible telescopic units as target inflatable flexible telescopic units;
(2) determining the expansion amplitude of the inflatable flexible expansion unit with each ID value;
(3) and after receiving the stretching amplitude of the target inflatable flexible telescopic unit, the multiplexing DA interface board controls the opening degree of an electromagnetic valve on a gas path connected with the target inflatable flexible telescopic unit, and then the target inflatable flexible telescopic unit is jacked up by the gas of the corresponding gas path to reach the length to be stretched, so as to generate the touchable solid falling object consistent with the virtual falling object.
Since the same-shaped falling object is generated on the scene in the VR scene, the user can obtain a real sense of touch.
In summary, the following steps: the device and the method for generating the touchable entity in real time at the corresponding position of the real space according to the position and the shape of the virtual object in the virtual reality scene provide real touch for the user. In addition, the touchable entity generated in real time by the device and the method is a flexible entity, and potential safety hazards cannot be brought to virtual reality experience.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An apparatus for generating a tangible entity in real-time in a virtual reality space, the apparatus comprising:
a base provided with a plurality of inflatable flexible telescopic units;
the air pump provides power for the inflatable flexible telescopic unit;
one end of each air path is communicated with one inflatable flexible telescopic unit, the other end of each air path is communicated with the air pump, and each air path is provided with an electromagnetic valve;
the controller is electrically connected to each electromagnetic valve and the server and used for controlling the opening degree of the electromagnetic valves so as to control the length of the inflatable flexible telescopic unit to generate a touchable entity.
2. The apparatus for generating tangible entities in real time in virtual reality space according to claim 1, wherein the base comprises a housing and a fixing member disposed on an inner wall of the housing, the fixing member is provided with a plurality of guide holes, and the inflatable flexible telescopic units are correspondingly fixed in the guide holes.
3. An apparatus for generating tangible objects in real time in virtual reality space as recited in claim 2, wherein the housing is made of metal or plastic and is cylindrical.
4. An apparatus for generating tangible objects in real time in virtual reality space according to claim 2, wherein a plurality of the guide holes are uniformly provided on an inner wall of the housing;
preferably, the plurality of guide holes are arranged in a honeycomb shape.
5. An apparatus for real-time generation of tangible entities in virtual reality space according to any one of claims 1 to 4, wherein the controller comprises an electrically connected core board and a multiplexed DA interface board, the core board being electrically connected to the server and the multiplexed DA interface board being electrically connected to each of the solenoids.
6. A method of generating a tangible entity in real time in a virtual reality space, employing an apparatus for generating a tangible entity in a virtual reality space according to any one of claims 1-5, the method comprising the steps of:
acquiring touchable virtual bodies around a user in a virtual space;
and generating a touchable entity at the corresponding position in the real space according to the position and the shape of the virtual body.
7. A method of generating tangible entities in real time in virtual reality space according to claim 6, wherein the step of generating tangible entities at corresponding locations in real space based on the location and shape of the virtual body comprises:
determining a target inflatable flexible telescopic unit according to the position and the shape of the virtual body;
determining the expansion amplitude of the target inflatable flexible expansion unit;
and the controller controls the target inflatable flexible telescopic unit to perform telescopic motion according to the telescopic amplitude to generate a touchable entity.
8. A method of generating a tangible entity in real time in a virtual reality space according to claim 7, wherein each of the inflatable flexible telescoping units has a unique ID value and the location of each of the inflatable flexible telescoping units is known, the inflatable flexible telescoping unit of the corresponding ID value is determined from the location and shape of the virtual body, i.e. the target inflatable flexible telescoping unit.
9. The method of generating a tangible entity in real time in virtual reality space of claim 7, wherein the step of a controller controlling the telescopic motion of the target inflatable flexible telescopic unit according to the telescopic amplitude comprises:
the controller determines the ventilation volume of an air passage connected with the target inflatable flexible telescopic unit according to the telescopic amplitude;
determining the opening of the electromagnetic valve on the corresponding gas circuit according to the ventilation quantity;
and the controller controls the target inflatable flexible telescopic unit to perform telescopic motion according to the opening degree of the electromagnetic valve, so that a touchable entity is generated.
10. The method of generating a tangible entity in real time in virtual reality space of claim 9, wherein a controller controls the target inflatable flexible telescoping units to move telescopically according to the magnitude of the telescoping, the step of generating a tangible entity comprising:
after the controller receives the stretching amplitude of the target inflatable flexible stretching unit, the core board converts the stretching amplitude into a digital control signal of ventilation;
transmitting the digital control signal to the multiplexing DA interface board;
and the multiplexing DA interface board controls the opening of a solenoid valve on an air passage connected with the target inflatable flexible telescopic unit, controls the telescopic motion of the target inflatable flexible telescopic unit and generates a touchable entity.
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Cited By (1)
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| CN113986012A (en) * | 2021-10-28 | 2022-01-28 | 广州市影擎电子科技有限公司 | Movable combined wall and virtual reality experience device thereof |
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| CN101211190A (en) * | 2006-12-25 | 2008-07-02 | 财团法人工业技术研究院 | Touch sensing device and mobile device using same |
| WO2018126682A1 (en) * | 2017-01-03 | 2018-07-12 | 京东方科技集团股份有限公司 | Method and device for providing tactile feedback in virtual reality system |
| CN109933207A (en) * | 2019-04-02 | 2019-06-25 | 黄立新 | The tactile of reality environment generates analogy method |
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