CN209946830U - Hot touch reappearance device of virtual experiment platform - Google Patents
Hot touch reappearance device of virtual experiment platform Download PDFInfo
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- CN209946830U CN209946830U CN201921162510.3U CN201921162510U CN209946830U CN 209946830 U CN209946830 U CN 209946830U CN 201921162510 U CN201921162510 U CN 201921162510U CN 209946830 U CN209946830 U CN 209946830U
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Abstract
The utility model provides a hot touch reappearance device of virtual experiment platform, including heating module, orientation module and control module, the orientation module includes guide rail device, first ball and second ball, the guide rail device includes first guide rail, second guide rail and third guide rail, is equipped with the first step motor that is used for driving first ball to rotate on the first guide rail, is equipped with the second step motor that is used for driving second ball to rotate on the third guide rail; the heating module comprises a PTC heating body, a cooling fan and a movable sliding block which are sequentially arranged from top to bottom, and a second ball screw penetrates through the movable sliding block; the control module can control the first stepping motor and the second stepping motor to enable the heating module to move on the XY plane and simultaneously control the PTC heating body and the cooling fan to work. The utility model discloses a PTC heat-generating body emits steam and comes the recurrence under the true condition, and the heat that the heat release object produced in the experiment reaches the effect of reappearing hot sense of touch to the stimulation of human skin through non-contact heat perception.
Description
Technical Field
The utility model belongs to virtual reality sense of touch reappears the field, concretely relates to hot sense of touch reappearance device of virtual experiment platform.
Background
The virtual reality technology is a technology capable of reproducing vision, hearing, touch and smell, the current virtual reality technology is mainly virtual to reality in vision, mainly force touch reproduction is performed in the aspect of touch, and in various touch senses which can be sensed by a human body, such as pain sense, itch sense, slippery sense, temperature sense and the like, temperature sensing in the temperature sense is an important basis for distinguishing different objects by human skin, and is an indispensable reproduction link of the virtual reality technology.
Currently, in the field of virtual reality, existing thermal tactile representation products mainly exist in the form of data gloves, and heat is generated by adding a small resistor to each finger stall and then supplying current to the resistor, so that the skin of a finger feels stimulation of the heat. For hot and cold touch, the market also uses the thermal conductivity of water to provide hot and cold feedback to skin, such as a HaptX data glove, which divides the skin on the hand into very small areas, and then performs cold and hot stimulation on the small areas, so as to achieve higher precision, but the cost is very high, and the whole glove is also large in volume. In the research field, semiconductor refrigerating sheets are used more frequently to generate heat and cold based on the peltier principle. When current flows, the semiconductor refrigerating sheet is cold and hot, and when skin contacts with the corresponding surface, corresponding hot (cold) tactile sensation is generated. Although the existing hot touch reappearing devices can provide hot and cold touch feeling well, the heat is limited, and the resistance wire and the electric heating tube generate heat, so that open fire exists, and the safety is low.
Therefore, in the current method for reappearing the thermal touch sense in the field of virtual reality, heat is sensed by contacting with a heating object, and then the human generates the thermal touch sense in a virtual environment. However, the immersion of the virtual reality technology in the existing methods causes problems because much heat is generated in a virtual environment by non-contact, and the heat needs to be transmitted through an air medium. In the thermal touch replication method, water is used for heating and refrigerating, and the heat is transferred by using objects such as water pipes, valves and the like under the influence of the physical characteristics of the water, so that the volume and the cost of equipment are increased; and the semiconductor refrigerating sheet is utilized to realize the hot touch reappearance, although heat can be conveniently provided, the heat is limited, and the heat in non-contact can not meet the requirement of a virtual experiment.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a hot sense of touch of virtual experiment platform reproduces device emits steam through the PTC heat-generating body and reproduces under the true condition, and the heat that the heat release object produced in the experiment reaches the effect of reproducing the hot sense of touch through the hot perception of non-contact to the stimulation of human skin.
The technical scheme of the utility model is realized like this:
a hot touch reappearance device of a virtual experiment platform comprises a heating module, a positioning module and a control module, wherein
The positioning module comprises a guide rail device, a first ball screw and a second ball screw, the guide rail device comprises a first guide rail, a second guide rail and a third guide rail, the first guide rail and the second guide rail are oppositely arranged, the third guide rail is arranged between the first guide rail and the second guide rail, a first support and a second support are respectively arranged at two ends of the first guide rail, and the first ball screw is fixed above the first guide rail through the first support and the second support; a third support and a fourth support are respectively arranged at two ends of the second guide rail, and a linear optical axis is arranged between the third support and the fourth support; a fifth support and a sixth support are respectively arranged at two ends of the third guide rail, and the second ball screw is fixed above the third guide rail through the fifth support and the sixth support; the first ball screw penetrates through one end of the third guide rail, and the linear optical axis penetrates through the other end of the third guide rail; a first stepping motor for driving the first ball screw to rotate is arranged on the first guide rail, and a second stepping motor for driving the second ball screw to rotate is arranged on the third guide rail;
the heating module comprises a PTC heating body, a cooling fan and a movable sliding block which are sequentially arranged from top to bottom, and the second ball screw penetrates through the movable sliding block;
the first stepping motor, the second stepping motor, the PTC heating element and the cooling fan are respectively connected with the control module through circuits; the control module can control the first stepping motor to enable the heating module to move in the X-axis direction, and the control module can control the second stepping motor to enable the heating module to move in the Y-axis direction; the control module controls the PTC heating body and the cooling fan to work.
Further, the PTC heating element comprises an aluminum pipe and a PTC ceramic heating sheet arranged in the aluminum pipe.
Furthermore, U-shaped corrugated radiating fins are further arranged in the aluminum pipe.
Further, a temperature sensor for detecting the temperature of the gas blown out from the PTC heating element is provided on the upper surface of the PTC heating element.
Furthermore, the heat radiation fan is fixed above the movable sliding block through the supporting legs.
Furthermore, an air inlet is formed at the lower end of the heat radiation fan.
Furthermore, two ends of the first guide rail and the third guide rail are respectively provided with a limit switch.
Furthermore, a overheating net is laid above the guide rail device, and overheating holes are formed in the overheating net.
Further, the overheating holes are arranged in an array.
Compared with the prior art, the utility model has the advantages of it is following: the utility model discloses a control module controls first step motor, second step motor and makes the module of heating remove the target location on the XY plane, then generates heat through controlling the PTC heat-generating body to blow the produced heat of PTC heat-generating body to the top of PTC heat-generating body through radiator fan, thereby realized non-contact heat touch reappearance, the heat touch perception that shows life at human skin that can be more true. The utility model uses the PTC heating element as the heat source, and has no open fire when generating heat, thereby being safe and reliable; and the heating efficiency is as high as 99%, the service life is long, the temperature rise is rapid, and the heating device is safe and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an embodiment of a thermal tactile representation device of a virtual experiment platform according to the present invention;
FIG. 2 is a schematic diagram of a heating module;
FIG. 3 is a schematic view showing the structure of a PTC heating element;
FIG. 4 is a schematic structural diagram of the thermal tactile representation device of the virtual experiment platform according to the present invention in use;
fig. 5 is a block diagram showing a configuration of a thermal tactile sensation reproduction apparatus of a virtual experiment platform.
The attached drawings are as follows: 100 heating modules; 11PTC heating elements; 1101U-shaped corrugated fins; 1102 aluminum tubes; 1103PTC ceramic heating sheets; 12 a heat radiation fan; 13 moving the slide block; 14 a temperature sensor; 15 supporting the feet; 200 a positioning module; 2101 first guide rail; 2102 a second rail; 2103 a third guide rail; 22 a first ball screw; 23 a second ball screw; 2401 a first support; 2402 a second support; 2403 a third support; 2404 a fourth support; 2405 a fifth support; 2406 a sixth support; 25 linear optical axes; 26 a first stepper motor; 27 a second stepping motor; 28 limit switches; 300 a control module; 400 of overheating nets; 41 overheating holes; 500 laboratory bench.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and claims of this application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
Referring to fig. 1 to 3, an embodiment of the present invention discloses a thermal tactile representation device for a virtual experiment platform, comprising a heating module 100, a positioning module 200 and a control module 300, wherein
The positioning module 200 comprises a guide rail device, a first ball screw 22 and a second ball screw 23, the guide rail device comprises a first guide rail 2101, a second guide rail 2102 and a third guide rail 2103 arranged between the first guide rail 2101 and the second guide rail 2102, the two ends of the first guide rail 2101 are respectively provided with a first support 2401 and a second support 2402, and the first ball screw 22 is fixed above the first guide rail 2101 through the first support 2401 and the second support 2402; a third support 2403 and a fourth support 2404 are respectively arranged at two ends of the second guide rail 2102, and a linear optical axis 25 is arranged between the third support 2403 and the fourth support 2404; a fifth support 2405 and a sixth support 2406 are respectively arranged at two ends of the third guide rail 2103, and the second ball screw 23 is fixed above the third guide rail 2103 through the fifth support 2405 and the sixth support 2406; the first ball screw 22 penetrates through one end of the third guide rail 2103, and the linear optical axis 25 penetrates through the other end of the third guide rail 2103; a first stepping motor 26 for driving the first ball screw 22 to rotate is arranged on the first guide rail 2101, and a second stepping motor 27 for driving the second ball screw 23 to rotate is arranged on the third guide rail 2103;
the heating module 100 comprises a PTC heating element 11, a cooling fan 12 and a moving slide block 13 which are arranged from top to bottom in sequence, and a second ball screw 23 penetrates through the moving slide block 13;
the control module 300 moves the heating module 100 in the X-axis direction by controlling the first stepping motor 26, and the control module 300 moves the heating module 100 in the Y-axis direction by controlling the second stepping motor 27; the control module 300 controls the PTC heater 11 and the heat dissipation fan 12 to operate.
In operation, the control module 300 controls the position and temperature of the heating module 100, thereby realizing the thermal tactile sensation reproduction. The utility model discloses the embodiment does not need direct contact to generate heat the object and feels the heat with the produced heat of PTC heat-generating body 11's top of heat transfer to PTC heat-generating body through radiator fan 12, but spreads the heat through air medium to the true condition reproduces more truthfully.
In order to facilitate virtual experiments, a overheating net 400 can be laid above the guide rail device to isolate components; the overheating holes 41 are distributed on the overheating network 400, and the overheating holes 41 are arranged in an array, so that the heat generated by the PTC heating elements 11 can be transferred from the lower part of the overheating network 400 to the upper part of the overheating network 400 through the air medium under the action of the heat dissipation fan 12. When the virtual experiment is performed, the rail device is placed on the experiment table 500, and then the heat-passing net 400 is fixed above the rail device, the heat-passing net 400 can place a corresponding object or a device required for the virtual experiment thereon without interfering with the hot touch sense.
To improve the immersion of the virtual scene, the size of the overheating net 400 may be set to coincide with the size of the virtual laboratory bench. Because the utility model discloses a hot touch reappears device is non-contact, and the heat source is static relative human body, consequently before carrying out virtual experiment, needs the position of calibration laboratory bench under the real world and the virtual scene (virtual laboratory bench and real laboratory bench 500 promptly) to the distance of guaranteeing experimenter and laboratory bench is the same under two kinds of environment. For example, in the case of HTC VIVE helmet, before the program is executed, the position of the virtual camera in the Unity engine relative to the virtual laboratory bench needs to be set to the position of the human eye relative to the heat supply network in the real world, so that the virtual scene viewed by the human eye and the position of the real world device are consistent when the experiment is started. Therefore, when starting the virtual experiment, the distance from the virtual experiment table in the virtual environment is the same as the distance from the real environment to the heat supply network 400.
Specifically, as shown in fig. 3, the PTC heating element 11 includes an aluminum tube and a PTC ceramic heating element provided in the aluminum tube. Further, the aluminum pipe is provided with U-shaped corrugated fins 1101, wherein the U-shaped corrugated fins 1101 and the PTC ceramic heater chip are arranged at an interval in the horizontal direction, so that the U-shaped corrugated fins 1101 can greatly absorb heat from the PTC ceramic heater chip, and most of the heat generated by the PTC ceramic heater chip is transferred from the lower side of the overheating net 400 to the upper side of the overheating net 400 through the air medium by the cooling fan 12.
Further, the heat dissipation fan 12 is fixed above the movable sliding block 13 through the supporting legs 15, and the lower end of the heat dissipation fan 12 is provided with an air inlet so as to follow the direction of the air flow, so that the air enters from the bottom of the heat dissipation fan 12, the air with heat is blown to the upper side of the PTC heating element 11, and the hot air reaches the position where heat is generated through the heat passing net 400.
Further, a temperature sensor 14 is disposed on the upper surface of the PTC heating element 11, so as to measure the temperature of the blown hot air in real time, and the control module 300 controls the temperature of the PTC heating element 11 according to the temperature detected by the temperature sensor 14.
Further, two ends of the first guide rail 2101 and the third guide rail 2103 are respectively provided with a limit switch 28 for preventing the third guide rail 2103 from moving to two ends of the first ball screw 22 and the moving slider 13 from moving to two ends of the second ball screw 23.
During operation, the upper computer sends serial port data of the position of the heating module 100 to the control module 300, and then determines the degrees of rotation required by the first stepping motor 26 and the second stepping motor 27 according to the position point to which the heating module 100 should move and the lead (i.e., the distance of the screw thread rotating for one turn) of the first ball screw 22 and the second ball screw 23, so as to move the heating module 100 to the corresponding position. When the first stepping motor 26 drives the first ball screw 22 to rotate, the first ball screw 22 penetrates one end of the third guide rail 2103 and the other end of the third guide rail 2103 as viewed from the linear optical axis 25, so that the whole third guide rail 2103 is driven to move in the X-axis direction; when the second stepping motor 27 drives the first ball screw 22 to rotate, the second ball screw 23 penetrates the moving slider 13, and thus the heating module 100 is driven to move in the Y-axis direction as a whole.
For the temperature control, the temperature of the blown hot air can be measured in real time through the temperature sensor 14 by closed-loop control, and after the target temperature required by the hot touch is input to the PC terminal, the magnitude comparison between the current hot air temperature and the target temperature is performed through the control module 300, so that the PTC heating element 11 is controlled to heat, and the target temperature is maintained. The cooling fan 12 can control the wind power through the control module 300, and further control the temperature of the gas at different distances, for example, at the same position away from the air outlet, when the wind power is small, the temperature of the gas blown out by the PTC heating body is higher.
The data transmission between the upper computer, the PC terminal and the control module 300 can be in a wired transmission mode, and wireless transmission modes such as Bluetooth or WiFi can also be used.
The utility model discloses a control module 300 controls first step motor 26, second step motor 27 and makes heating module 100 move to the target location on the XY plane, then generates heat through controlling PTC heat-generating body 11 to blow the produced heat of PTC heat-generating body 11 to the top of PTC heat-generating body 11 through radiator fan 12, thereby realized non-contact heat sense of touch reappearance, more can be true show life in the heat sense of touch perception of human skin. The utility model uses the PTC ceramic heating plate as the heat source, and has no open fire when generating heat, thereby being safe and reliable; and the heating efficiency is as high as 99%, the service life is long, the temperature rise is rapid, and the heating device is safe and reliable.
The utility model discloses can be applied to augmented reality's experiment platform, regard overheating net 400 as laboratory bench 500, through placing high temperature resistance icon on overheating net 400, come virtual laboratory glassware through the discernment icon, can obtain hot sense of touch equally.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The hot touch reappearance device of the virtual experiment platform is characterized by comprising a heating module, a positioning module and a control module, wherein the heating module, the positioning module and the control module
The positioning module comprises a guide rail device, a first ball screw and a second ball screw, the guide rail device comprises a first guide rail, a second guide rail and a third guide rail, the first guide rail and the second guide rail are oppositely arranged, the third guide rail is arranged between the first guide rail and the second guide rail, a first support and a second support are respectively arranged at two ends of the first guide rail, and the first ball screw is fixed above the first guide rail through the first support and the second support; a third support and a fourth support are respectively arranged at two ends of the second guide rail, and a linear optical axis is arranged between the third support and the fourth support; a fifth support and a sixth support are respectively arranged at two ends of the third guide rail, and the second ball screw is fixed above the third guide rail through the fifth support and the sixth support; the first ball screw penetrates through one end of the third guide rail, and the linear optical axis penetrates through the other end of the third guide rail; a first stepping motor for driving the first ball screw to rotate is arranged on the first guide rail, and a second stepping motor for driving the second ball screw to rotate is arranged on the third guide rail;
the heating module comprises a PTC heating body, a cooling fan and a movable sliding block which are sequentially arranged from top to bottom, and the second ball screw penetrates through the movable sliding block;
the first stepping motor, the second stepping motor, the PTC heating element and the cooling fan are respectively connected with the control module through circuits; the control module can control the first stepping motor to enable the heating module to move in the X-axis direction, and the control module can control the second stepping motor to enable the heating module to move in the Y-axis direction; the control module controls the PTC heating body and the cooling fan to work.
2. A thermal tactile representation apparatus of a virtual experimental platform according to claim 1, wherein the PTC heater comprises an aluminum tube and a PTC ceramic heater chip disposed in the aluminum tube.
3. A thermo-tactile reproduction apparatus of a virtual laboratory platform according to claim 2, wherein U-shaped corrugated fins are further provided in said aluminum tube.
4. A thermo-tactile reproducing device of a virtual experiment platform according to claim 1, wherein a temperature sensor for detecting a temperature of gas blown out from the PTC heater is provided on an upper surface of the PTC heater.
5. A thermal tactile representation apparatus according to claim 1, wherein the heat dissipation fan is fixed above the movable slider by a support leg.
6. A thermal tactile representation apparatus for a virtual laboratory platform according to claim 5, wherein said heat dissipation fan has an air inlet at a lower end thereof.
7. The thermal tactile representation device of the virtual experimental platform as claimed in claim 1, wherein limit switches are respectively disposed at two ends of the first guide rail and the third guide rail.
8. The thermal tactile representation apparatus of the virtual experiment platform as claimed in claim 1, wherein a heat-passing net is laid above the guide rail apparatus, and heat-passing holes are formed on the heat-passing net.
9. A thermo-tactile reproduction apparatus of a virtual laboratory platform according to claim 8, wherein said overheating holes are arranged in an array.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921162510.3U CN209946830U (en) | 2019-07-23 | 2019-07-23 | Hot touch reappearance device of virtual experiment platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921162510.3U CN209946830U (en) | 2019-07-23 | 2019-07-23 | Hot touch reappearance device of virtual experiment platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231872A (en) * | 2019-07-23 | 2019-09-13 | 广东工业大学 | A kind of hot tactile representation device of Virtual Experiment Platform Based |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231872A (en) * | 2019-07-23 | 2019-09-13 | 广东工业大学 | A kind of hot tactile representation device of Virtual Experiment Platform Based |
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