Head-mounted virtual reality interactive display equipment

Abstract

A head-mounted virtual reality interactive display device comprises a head-mounted VR device body, a power switch, a fan and a temperature control circuit. One side of each of a plurality of electrode plates of the head-mounted VR equipment body is mounted at the front end of a flexible plate, a plurality of springs are mounted at the rear end of the flexible plate, and the rear ends of the plurality of springs are mounted at the forehead position of the front upper part in a helmet of the head-mounted VR equipment body; heat dissipation holes are formed in the upper end of the helmet, and the heat dissipation fan is installed on the heat dissipation holes; the power switch and the temperature control circuit are installed in an element box of the head-mounted VR equipment body and are electrically connected. The electrode slices are distributed on the front upper portion of the forehead of the helmet, a better electroencephalogram information collecting effect can be achieved, the helmet has the advantages of being low in cost, simple in structure and low in failure rate, the head temperature of a user can be detected in real time through the temperature control circuit, the fan can be switched on in real time to dissipate heat when the temperature exceeds a threshold value, convenience is brought to the user, and the helmet is worthy of popularization. And the user has better VR video experience.

Description

Technical Field

[0001] The utility model relates to the technical field of virtual reality equipment, in particular to a head-mounted virtual reality interactive display device. Background Art

[0002] Head-mounted virtual reality interactive equipment (VR) is a head-mounted display that blocks people's vision and hearing from the outside world, guiding users to feel like they are in a virtual environment. The display principle is that the left and right eye screens display the left and right eye images respectively, and the human eye obtains this different information and creates a three-dimensional image in the mind. In actual applications, VR can adjust the display screen or game process according to the user's hand or posture information through internal software programs, which brings convenience to people and can better realize the interaction between people and virtual images.

[0003] With the advancement of science and technology, VR that controls images or game processes by collecting brain waves has also achieved certain technical development. For example, my country's authorized patent number "201921385711.X" and patent name "A VR device based on brain signal control" (its essence is a head-mounted VR device) states that "the utility model has a high degree of automation and can control the VR virtual world through brain waves. It is not restricted by geographical location, which has promoted scientific and technological progress." As can be seen from the above, although the comparative patent realizes brain wave control of related images or game processes, like the existing technology in this field, there are still more or less certain technical problems, which are specifically reflected as follows. In practical applications, VR helmet electrodes are important carriers for collecting brain wave signals. Generally, there are multiple electrodes, which are installed in the helmet separately. In order to effectively collect brain wave signals, the electrode pieces (the collected signals are transmitted to the main control module, and the main control module controls the screen or game process) need to fit the human brain curve as much as possible. The multiple electrode pieces of the comparative patent are installed on the top of the helmet, and due to the influence of hair on the human head (hair insulation), the electrode pieces located on the hair cannot effectively collect the human brain nerve activity information, which will have an adverse effect on the subsequent control module to collect and analyze brain wave signals. In addition, in order to make the electrode piece fit the human head, the comparative patent adopts a downward pressure device, which includes air bags, air pumps, and contact detectors. Not only is the structure more complex, but it also has the disadvantage of high cost, and because there are many parts, it is relatively easy to malfunction. Finally, the head-mounted device of the comparative patent does not have a cooling device, especially in hot summer, when the air in the helmet is not circulating, it will make the user feel uncomfortable. Utility Model Content

[0004] In order to overcome the drawbacks of existing head-mounted VR devices due to structural limitations as described in the background, the utility model provides a head-mounted VR device body, which, under the joint action of relevant mechanisms during application, can ensure that as many electrode sheets as possible contact the forehead area without hair on the human head, so as to achieve a good EEG information collection effect, and has the advantages of low cost, simple structure, and low failure rate. It can also detect the temperature of the user's head in real time, and when the temperature exceeds the threshold, it can turn on the fan in real time to dissipate heat for the user, thereby bringing convenience to the user. A head-mounted virtual reality interactive display device.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A head-mounted virtual reality interactive display device comprises a head-mounted VR device body, a power switch, and a fan, and is characterized in that it also has a temperature control circuit; one side of multiple electrode sheets of the head-mounted VR device body is respectively installed on the front end of a flexible board, and a plurality of springs are installed at the rear end of the flexible board, and the rear ends of the plurality of springs are installed at the front upper forehead position inside the helmet of the head-mounted VR device body; a heat dissipation hole is provided at the upper end of the helmet, and a heat dissipation fan is installed on the heat dissipation hole; the power switch and the temperature control circuit are installed in a component box of the head-mounted VR device body; the power output end of the temperature control circuit is electrically connected to the power input end of the heat dissipation fan.

[0007] Furthermore, the flexible board is made of plastic or rubber.

[0008] Furthermore, the shape of the flexible plate matches the shape of a person's forehead, and after the helmet body is worn on the head, the plurality of electrode sheets fit the person's forehead.

[0009] Furthermore, the side end of the helmet has a plurality of heat dissipation openings.

[0010] Furthermore, the temperature control circuit includes an electrically connected resistor, a relay, an NPN transistor and a temperature switch, the temperature switch is installed in the helmet, the positive power input terminal of the relay and the control power input terminal are connected to one end of the temperature switch, the other end of the temperature switch is connected to one end of the resistor, the other end of the resistor is connected to the base of the NPN transistor, and the collector of the NPN transistor is connected to the negative power input terminal of the relay.

[0011] The beneficial effects of the utility model are as follows: the utility model is based on the head-mounted VR device body, and since the electrode sheets are distributed on the front upper part of the helmet forehead, and through the action of multiple springs, etc., after the helmet is put on, the multiple electrode sheets can all fit the forehead of the user. Since there is no insulation blocking interference of hair, a better EEG information collection effect can be achieved, and the corresponding advantages are low cost, simple structure, and low failure rate. The temperature of the user's head can also be detected in real time through the temperature control circuit. When the temperature exceeds the threshold, the fan can be turned on in real time to dissipate the heat, which brings convenience to the user and allows the user to have a better VR video experience. In summary, the utility model has a good application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 , 2 It is a schematic diagram of the overall structure and the partially enlarged structure of the utility model.

[0014] Figure 3 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0015] Figure 1 , 2 As shown in , 3, a head-mounted virtual reality interactive display device includes a head-mounted VR device body 1, a power switch D1, an axial flow cooling fan M, and a temperature control circuit 2; the front sides of multiple electrode sheets 11 of the head-mounted VR device body 1 are respectively glued to a flexible plastic plate 3 (or rubber plate) at a certain distance on the left and right, and multiple springs 4 are hot-melt welded to the rear end of the flexible plastic plate 3 at a certain distance on the left and right, and the front ends of the multiple springs 4 are hot-melt welded to the front upper forehead position of the helmet 5 of the head-mounted VR device body 1 at a certain distance on the left and right; the middle part of the upper end of the helmet 5 has a heat dissipation hole that communicates with the helmet, and the heat dissipation fan M is installed on the outer side of the heat dissipation hole through a screw nut; the power switch D1 and the temperature control circuit 2 are installed in the component box 6 of the head-mounted VR device body.

[0016] Figure 1 , 2As shown in Figures 3 and 4, the plastic plate 3 can also be replaced by a rubber plate or the like. The shape of the plastic plate 3 matches the shape of the forehead of a person's head. After the helmet 5 is worn on the head, the plurality of electrode sheets 11 fit the head of the person. The left and right sides of the helmet 5 are respectively provided with a plurality of heat dissipation openings 51. The temperature control circuit comprises a resistor R1, a relay K1, an NPN transistor Q1 and a temperature switch S1 connected via circuit board wiring. The temperature switch S1 is mounted outside the upper end of the helmet 5 and the temperature sensing surface is located at the upper inner part of the helmet 5. The positive power input terminal and the control power input terminal of the relay K1 are connected to one end of the temperature switch S1, and the other end of the temperature switch S1 is connected to one end of the resistor R1. The other end of the resistor R1 is connected to the base of the NPN transistor Q1, and the collector of the NPN transistor Q1 is connected to the negative power input terminal of the relay K1. One end of the power switch D1 is connected to the positive electrode of the battery G in the component box of the head-mounted VR device body, the other end of the power switch D1, the negative electrode of the battery G, the positive power input end of the relay K1 of the temperature control circuit, and the emitter of the NPN transistor Q1 are connected via wires respectively, and the normally open contact end of the relay K1 of the power output end of the temperature control circuit, the emitter of the NPN transistor Q1, and the two ends of the power input of the cooling fan M are connected via wires respectively.

[0017] Figure 1 , 2 As shown in Figure 3, the new type is based on a head-mounted VR device body 1, and other usage methods and principles are completely consistent with existing head-mounted VR devices. After putting on the helmet, the head-mounted VR device body 1 blocks the person's vision and hearing to the outside world, and the left and right eye screens respectively display the images of the left and right eyes. After the human eye obtains this different information, a three-dimensional image is generated in the mind, guiding the user to have a feeling of being in a virtual environment. In actual applications, the head-mounted VR device body can adjust the display screen or game processes according to the user's hand or posture information (or the signal collected by the electrode sheet 11, and the collected signal is transmitted to the main control module, and the main control module controls the screen or game processes) through the internal software program, which brings convenience to people and can better realize the interaction between people and virtual images. In the present invention, since the electrode sheets 11 are distributed on the front upper part of the forehead of the helmet 5, and are acted upon by a plurality of springs 4 (the plastic plate 3 is elastic, and the spring force can make the electrode sheets fit the forehead of the person as closely as possible), after the helmet 5 is put on, the plurality of electrode sheets 11 can all fit the forehead of the user. Since the electrode sheets 11 are not blocked by the insulation of the hair, better EEG information collection effects can be achieved, and the advantages of low cost, simple structure, and low failure rate can be achieved. It should be noted that before the application of the present invention, if the bangs at the front end of the forehead of a woman are long, in order to prevent the hair from affecting the contact of the electrode sheets with the forehead, the user can first straighten the hair on the head, and press the bangs on the rear end of the helmet 5 (that is, the rear end of the electrode sheets) to prevent the electrode sheets from being blocked by the hair and unable to effectively contact the forehead.

[0018] Figure 1 , 2 As shown in Figure 3, after the user puts on the helmet and turns on the power switch D1, the temperature control circuit is powered on and starts working. If the ambient temperature is lower than a certain temperature (for example, lower than 30 degrees Celsius), the internal contacts of the temperature switch S1 are open, and the relay K1 will not be powered on and closed, so the fan M will not be powered on and start working. When the ambient temperature is higher than a certain temperature (for example, higher than 30 degrees Celsius), the internal contacts of the temperature switch S1 will be closed, and the power output from the positive electrode of the battery G will enter the base of the transistor Q1 through the current limiting and voltage reduction of the resistor R1. The transistor Q1 is turned on and the collector outputs a low level and enters the negative power input terminal of the relay K1. The relay K1 will be powered on and closed, and its control power input terminal and the normally open contact terminal will be closed. Then, the fan M will be powered on and start working, blowing the external air into the upper part of the head, and then blowing it out from the outer end of the heat dissipation hole, so as to achieve the purpose of heat dissipation for the user, bringing convenience to the user and allowing the user to have a better VR video experience. Figure 3 Among them, the resistance of resistor R1 is 10K; the model of NPN transistor Q1 is 9013; the model of relay K1 is DC12V; the temperature switch S1 is a snap-type normally open contact micro power switch (30 degrees Celsius) of model KSD301; the working voltage of fan M is DC 12V and the power is 20W.

[0019] It is obvious to those skilled in the art that the present invention is limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary 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 intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0020] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A head-mounted virtual reality interactive display device, comprising a head-mounted VR device body, a power switch, and a fan, characterized in that: It also has a temperature control circuit; one side of the multiple electrode sheets of the head-mounted VR device body is respectively installed on the front end of the flexible board, and the rear end of the flexible board is installed with multiple springs, and the rear ends of the multiple springs are installed at the front upper forehead position inside the helmet of the head-mounted VR device body; the upper end of the helmet has a heat dissipation hole, and the heat dissipation fan is installed on the heat dissipation hole; the power switch and the temperature control circuit are installed in the component box of the head-mounted VR device body; the power output end of the temperature control circuit and the power input end of the heat dissipation fan are electrically connected.

2. A head-mounted virtual reality interactive display device according to claim 1, characterized in that: The flexible board is a kind of plastic or rubber material.

3. A head-mounted virtual reality interactive display device according to claim 1, characterized in that: The shape of the flexible board matches the shape of the human forehead. After the helmet body is worn on the head, the multiple electrode sheets fit the human forehead.

4. A head-mounted virtual reality interactive display device according to claim 1, characterized in that: The side ends of the helmet have multiple heat dissipation openings.

5. The head-mounted virtual reality interactive display device according to claim 1, characterized in that: The temperature control circuit includes an electrically connected resistor, a relay, an NPN transistor and a temperature switch. The temperature switch is installed in the helmet. The positive power input terminal of the relay and the control power input terminal are connected to one end of the temperature switch, the other end of the temperature switch is connected to one end of the resistor, the other end of the resistor is connected to the base of the NPN transistor, and the collector of the NPN transistor is connected to the negative power input terminal of the relay.

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