Interaction control unit and virtual reality display system

Abstract

The utility model provides an interaction control unit and a virtual reality display system. The interaction control unit comprises a control circuit, a key circuit and a wireless transmitting circuit. The key circuit is used for responding to switching operation of a user and transmitting a preset switching electric signal to the control circuit, and the control circuit is used for sending a switching instruction to a signal transceiver in the virtual reality display system through the wireless transmitting circuit when receiving the switching electric signal. Wherein the signal transceiver is used for sending a switching instruction to a large-screen display controller in the virtual reality display system, and the switching instruction is used for indicating the large-screen display controller to switch between 2D display and 3D display. In the application, the key circuit can respond to the switching operation of a user, so that the control circuit sends the switching instruction to the signal transceiver through the wireless transmitting circuit, and then the signal transceiver sends the switching instruction to the large-screen display controller, so that switching between 2D display and 3D display is realized, and great convenience is achieved.

Description

Technical Field

[0001] The present application relates to the field of virtual reality technology, and in particular to an interactive control unit and a virtual reality display system. Background Art

[0002] Virtual Reality (VR) technology is a computer simulation technology that can create and experience a virtual world. It uses computers to generate a virtual environment and simulates interactive three-dimensional dynamic vision and entity behavior through multi-source information fusion.

[0003] Based on virtual reality technology, there is a display system that uses a large-sized display screen. The display screen can be used with 3D glasses (such as active shutter 3D glasses) to allow users to watch virtual content with three-dimensional effects; and users can interact in the virtual content through an interactive control unit (such as an interactive handle). Therefore, this display system is also called an immersive interactive large screen. The immersive interactive large screen is mainly used in large space scenes and is more practical and convenient in many occasions, such as teaching demonstrations, etc.

[0004] The virtual reality display system described above usually requires a special controller (referred to as a large-screen display controller in this application) to receive video signals and drive the display screen for display, such as 3D display or 2D display, etc. Therefore, there is a need to switch the display mode, such as switching the current 3D display to 2D display or switching the current 2D display to 3D display. In the related art, a switch for implementing this switching function is usually set on the large-screen display controller, and the user can switch between 2D display and 3D display through this switch.

[0005] However, due to the excessive number of device connections on the large-screen display controller, the large-screen display controller is usually placed in a place that is not easily accessible, such as a computer room, for the sake of aesthetics. This causes inconvenience for users when switching, especially when frequent switching is required in a short period of time, resulting in a poor user experience.

[0006] It should be noted that the above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Utility Model Content

[0007] The present application provides an interactive control unit and a virtual reality display system, so that the interactive control unit has the function of controlling the switching between 2D display and 3D display. In this way, when the user has a switching demand, the switching can be achieved through the interactive control unit, which is very convenient and enhances the user experience.

[0008] In a first aspect, the present application provides an interaction control unit, comprising:

[0009] Control circuit;

[0010] a key circuit connected to the control circuit; the key circuit is used to respond to a user's switching operation and transmit a preset switching electrical signal to the control circuit; and

[0011] A wireless transmitting circuit connected to the control circuit; the control circuit is used to send a switching instruction to a signal transceiver in a virtual reality display system through the wireless transmitting circuit when receiving the switching electrical signal;

[0012] The signal transceiver is used to send the switching instruction to the large-screen display controller in the virtual reality display system, and the switching instruction is used to instruct the large-screen display controller to switch between 2D display and 3D display.

[0013] In the interactive control unit provided in the present application, one end of the key circuit is connected to a high-level voltage, and the other end is connected to a low-level pin of the control circuit;

[0014] The key circuit is used to respond to the user's switching operation and connect the high-level voltage with the low-level pin; wherein the switching electrical signal is a rising edge signal.

[0015] In the interactive control unit provided in the present application, the key circuit includes a first physical key; the first physical key is used to connect the high-level voltage and the low-level pin when pressed by the user; the first physical key has no other functions;

[0016] or,

[0017] The key circuit includes a plurality of second physical keys; the plurality of second physical keys are used to connect the high-level voltage and the low-level pin when pressed by the user at the same time; the second physical keys have other functions.

[0018] In the interactive control unit provided in the present application, the interactive control unit further includes a sensor circuit;

[0019] The sensor circuit is connected to the control circuit and is used to transmit a preset hand-held electrical signal to the control circuit when sensing that the user is holding the interactive control unit;

[0020] Wherein, the handheld electrical signal is used to instruct the control circuit to send the switching instruction when receiving the switching electrical signal.

[0021] In the interactive control unit provided in the present application, the sensor circuit includes a pressure sensor, which is arranged in the user-gripping portion of the shell of the interactive control unit; the pressure sensor is used to transmit the handheld electrical signal to the control circuit when pressed by the user.

[0022] In the interactive control unit provided in the present application, the number of the pressure sensors is multiple, and the multiple pressure sensors are dispersedly arranged on the user gripping portion.

[0023] In the interactive control unit provided in the present application, the signal transceiver is connected to the large-screen display controller in a wired manner, so that the signal transceiver directly transmits the switching instruction to the large-screen display controller when receiving it.

[0024] In the interactive control unit provided in the present application, the signal transceiver and the large-screen display controller are connected via an RS232 cable.

[0025] In the interactive control unit provided in the present application, the signal transceiver is provided with an antenna module, and the antenna module is used to enhance the signal receiving capability of the signal transceiver.

[0026] In a second aspect, the present application provides a virtual reality display system, comprising: a display screen, a large-screen display controller, a user computer, a signal transceiver, 3D glasses, and an interactive control unit as described in any one of the first aspects.

[0027] In the technical solution provided by the present application, the button circuit can respond to the user's switching operation, so that the control circuit sends a switching instruction to the signal transceiver through the wireless transmission circuit, and then the signal transceiver sends a switching instruction to the large-screen display controller to achieve the switch between 2D display and 3D display. That is, the present application enables the interactive control unit to have the function of controlling the switch between 2D display and 3D display, so that when the user has a switching demand, the switch can be achieved through the interactive control unit. Compared with the related art in which the user needs to switch on the large-screen display controller, the present application is extremely convenient and enhances the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 is a schematic diagram of an exemplary structure of a virtual reality display system in the related art;

[0030] Figure 2 A schematic diagram of a circuit structure of an interactive control unit provided in an embodiment of the present application;

[0031] Figure 3 A schematic diagram of a circuit structure of a key circuit in an embodiment of the present application;

[0032] Figure 4 This is an exemplary implementation of the key circuit in the embodiment of the present application;

[0033] Figure 5 Another exemplary implementation of the key circuit in the embodiment of the present application;

[0034] Figure 6 This is another schematic diagram of the circuit structure of the interactive control unit in the embodiment of the present application;

[0035] Figure 7 This is a schematic diagram of an exemplary structure in which multiple pressure sensors are dispersedly arranged in an embodiment of the present application;

[0036] Figure 8 This is an exemplary schematic diagram of the connection between the signal transceiver and the large-screen display controller in the embodiment of the present application;

[0037] Fig. 9 An exemplary structural diagram of a virtual reality display system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0040] It should be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0041] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0042] The virtual reality display system in the related art can be exemplarily described as follows: Figure 1 As shown, the virtual reality display system may include but is not limited to a display screen, a large-screen display controller, a user computer, a signal transceiver, 3D glasses, and an interactive handle. The display screen and the large-screen display controller may be connected in a wired manner, such as RJ45; the large-screen display controller and the user computer may be connected in a wired manner, such as HDMI; the large-screen display controller and the 3D glasses may be connected in a wireless manner, such as 2.4G WiFi band; the signal transceiver and the user computer may be connected in a wired manner, such as USB; the signal transceiver and the interactive handle may be connected in a wireless manner, such as Bluetooth. Based on this, the working principle of the virtual reality display system can be described as follows. It should be noted that since the principle of 3D display is well known, only a brief discussion is made here without making an excessively detailed discussion: the signal transceiver receives the interactive instructions (such as flipping, dragging, etc.) transmitted by the interactive handle and performs preset processing on the interactive instructions and sends them to the user computer; the user computer determines the position of the 3D glasses, and determines the display content according to the position of the 3D glasses and the interactive instructions transmitted by the signal transceiver, and transmits the display content to the large-screen display controller; the large-screen display controller performs preset processing on the display content according to the display strategy, and transmits the processed display content to the display screen, thereby driving the display screen to display the corresponding display content; in addition, the large-screen display controller also sends a stereo synchronization signal to the 3D glasses, instructing the 3D glasses to control the lens shutter of the left eye and the lens shutter of the right eye. In this way, the user can watch the corresponding virtual content through the 3D glasses.

[0043] It can be seen that there are too many device connections on the large-screen display controller, such as the RJ45 connection, HDMI connection, USB connection related to the above, and of course, other device connections, such as power connection, etc., which are not exhaustive in the embodiments of this application. Therefore, for the sake of aesthetics, the large-screen display controller is usually placed in a place that is not easily touched, such as a computer room. However, this method also makes the switch on the large-screen display controller that controls the switching between 2D display and 3D display difficult for the user to touch, and when the user needs to switch between 2D display and 3D display, this method is very inconvenient, especially when the user needs to switch frequently in a short period of time, the user experience is too poor.

[0044] To this end, the embodiment of the present application provides an interactive control unit and a virtual reality display system, so that the interactive control unit has the function of controlling the switching between 2D display and 3D display, so that when the user has a switching demand, the switching can be achieved through the interactive control unit. Compared with the related art in which the user needs to switch on the large-screen display controller, the embodiment of the present application is very convenient and enhances the user experience.

[0045] like Figure 2 As shown, an interactive control unit 100 provided in an embodiment of the present application may include a control circuit 110, a key circuit 120, and a wireless transmission circuit 130. The key circuit 120 is connected to the control circuit 110, and the wireless transmission circuit 130 is connected to the control circuit 110.

[0046] The key circuit 120 is used to respond to the user's switching operation and transmit a preset switching electrical signal to the control circuit 110. Specifically, when the user has a need to switch the 2D display to the 3D display or the 3D display to the 2D display, the key circuit 120 can be operated, such as pressing, rotating, etc. In this way, the key circuit 120 can respond to the user operation and transmit a predefined switching electrical signal to the control circuit 110, such as a rising edge, a falling edge, a voltage signal with a voltage value greater than a certain value, a high-level signal with a duration greater than a certain value, etc.

[0047] The control circuit 110 may include but is not limited to a microcontroller unit (MCU), which implements the technical features related to the control circuit 110 mentioned in the embodiments of the present application. The control circuit 110 is used to send a switching instruction to a signal transceiver in the virtual reality display system through a wireless transmission circuit 130 when receiving a switching electrical signal transmitted by the key circuit 120. Specifically, when the control circuit 110 receives the switching electrical signal, it can generate a switching instruction according to a predefined strategy and send the switching instruction. For example, the wireless transmission circuit 130 can be a Bluetooth transmission module, and the switching instruction is sent by the module in a Bluetooth manner. Accordingly, the signal transceiver may include a Bluetooth receiving module used in conjunction with the Bluetooth transmission module, so that the module can receive the switching instruction.

[0048] The signal transceiver is used to send the switching instruction mentioned above to the large-screen display controller in the virtual reality display system, and the switching instruction is used to instruct the large-screen display controller to switch between 2D display and 3D display. Specifically, the signal transceiver can send the switching instruction to the large-screen display controller by direct transmission or indirect transmission. For example, the signal transceiver can send the switching instruction to the user computer, and the user computer forwards the switching instruction to the large-screen display controller. After receiving the switching instruction, the large-screen display controller switches the current display mode to another display mode, that is, if the display screen is currently in 3D display, it is switched to 2D display through control, and if the display screen is currently in 2D display, it is switched to 3D display through control.

[0049] It can be seen that in the embodiment of the present application, the button circuit 120 can respond to the user's switching operation, so that the control circuit 110 sends a switching instruction to the signal transceiver through the wireless transmission circuit 130, and then the signal transceiver sends a switching instruction to the large-screen display controller to achieve the switch between 2D display and 3D display. That is, the embodiment of the present application enables the interactive control unit 100 to have the function of controlling the switch between 2D display and 3D display, so that when the user has a switching demand, the switch can be achieved through the interactive control unit 100. Compared with the related art where the user needs to switch on the large-screen display controller, the embodiment of the present application is very convenient and enhances the user experience.

[0050] Exemplarily, the virtual reality display system in the embodiment of the present application can be applied to teaching and scientific research, such as in large space scenes such as classrooms. In practical applications, the large-screen display controller, signal transceiver, etc. can be placed in the cabinet under the podium. Therefore, in the relevant technology, when the teacher needs to control the switching between 2D display and 3D display, it is necessary to find the cabinet key to open the cabinet, then find the large-screen display controller, and then determine the switch on the large-screen display controller, which is inconvenient. However, in the embodiment of the present application, when the teacher needs to control the switching between 2D display and 3D display, it is only necessary to operate the key circuit 120 on the interactive control unit 100 to achieve switching, which is very convenient and enhances the user experience.

[0051] In some embodiments, Figure 3As shown, one end of the key circuit 120 is connected to a high level voltage, for example, 5V. Exemplarily, the interactive control unit 100 may include a power management module, and the power management module outputs a high level voltage. Exemplarily, the control circuit 110 has a high level output pin, and the high level voltage is output by the pin. The other end of the key circuit 120 is connected to a low level pin (not shown in the figure) of the control circuit 120, and the low level pin refers to a pin that is low level under normal conditions. Based on this, the key circuit 120 is used to respond to the user's switching operation, connect the high level voltage and the low level pin, wherein the switching electrical signal is a rising edge signal. Specifically, during the period when the key circuit 120 connects the high level voltage and the low level pin, the pin inputs a high level voltage, that is, the pin jumps from the low level to the high level, so the switching electrical signal can be a rising edge signal. Exemplarily, the user presses the key circuit 120, thereby connecting the high level voltage and the low level pin, so that the key circuit 120 transmits a rising edge signal to the control circuit 110.

[0052] In some embodiments, Figure 4 As shown, the key circuit 120 may include a first physical key SW1, and the first physical key SW1 does not have other functions, that is, the first physical key SW1 is specifically used to control switching, and does not have other functions, such as flipping, dragging, etc. Based on this, the first physical key SW1 is used to connect the high-level voltage and the low-level pin when pressed by the user. Exemplarily, the first physical key SW1 can be in a disconnected state under normal conditions, and it is in a connected state when pressed. Therefore, when the first physical key SW1 is pressed by the user, the high-level voltage and the low-level pin are connected, so that the control circuit 110 receives a rising edge signal.

[0053] In other embodiments, Figure 5 As shown (the figure only shows two second physical keys SW2), the key circuit 120 may include multiple second physical keys SW2, and the second physical keys SW2 have other interactive functions. For example, some second physical keys SW2 have a flip function, and some second physical keys SW2 have a drag function. Based on this, the multiple second physical keys SW2 are used to connect the high-level voltage and the low-level pin when they are pressed by the user at the same time. Exemplarily, the second physical key SW2 can be in a disconnected state under normal conditions, and it is in a connected state when pressed, and the multiple second physical keys SW2 can be connected in series between the high-level voltage and the low-level pin in sequence. Therefore, the high-level voltage and the low-level pin can be connected only when all the second physical keys SW2 are pressed at the same time, so that the control circuit 110 receives a rising edge signal. It can be seen from this that this embodiment can realize the reuse of the original physical keys on the interactive control unit 100.

[0054] In some embodiments, Figure 6 As shown, the interaction control unit 100 may also include a sensor circuit 140. The sensor circuit 140 is connected to the control circuit 110, and is used to transmit a preset handheld electrical signal to the control circuit 110 when it senses that the user is holding the interaction control unit 100. The handheld electrical signal is used to instruct the control circuit 110 to send a switching instruction to the signal transceiver when receiving the switching electrical signal transmitted by the key circuit 120. Specifically, in order to prevent the user from malfunctioning the key circuit 120 due to collision or other reasons when the user is not holding the interaction control unit 100, resulting in an erroneous switch, the embodiment of the present application is provided with a sensor circuit 140 for sensing whether the user is holding the interaction control unit 100. And only when it is sensed that the user is holding the interaction control unit 100, a flashlight electrical signal is transmitted to the control circuit 110, so that the control circuit 110 can know that the current user has held the interaction control unit 100. In this case, if the control circuit 110 receives the switching electrical signal transmitted by the key circuit 120, it can be determined that it is not a malfunction, so the control circuit 110 can send a switching instruction to the signal transceiver through the wireless transmission circuit 130. It can be seen that the embodiment of the present application can avoid malfunctions caused by collisions and other reasons, thereby enhancing reliability.

[0055] In some embodiments, the sensor circuit 140 may include a pressure sensor, which is disposed at the user-held portion of the housing of the interactive control unit 100. The pressure sensor is used to transmit a hand-held electrical signal to the control circuit 110 when pressed by the user. Exemplarily, the pressure sensor may be disposed at the contact portion between the middle finger, the ring finger, and the little finger and the housing of the interactive control unit 100, so that when the user holds the interactive control unit 100, the pressure sensor is pressed, causing the pressure sensor to transmit a hand-held electrical signal to the control circuit 110.

[0056] In some embodiments, there may be multiple pressure sensors, which are dispersedly disposed on the user's grip. Figure 7 As shown, the multiple pressure sensors can be dispersedly arranged on the parts of the shell that contact the middle finger, ring finger and little finger. Taking into account the different sizes of users' palms, gripping postures, etc., in order to be able to reliably sense whether the user is holding the interactive control unit 100, the embodiment of the present application disperses multiple pressure sensors in the user's gripping part. Specifically, since the multiple pressure sensors are dispersedly arranged in the user's gripping part, when the user holds it, some of the pressure sensors will always be pressed. The pressed pressure sensors will transmit handheld electrical signals to the control circuit 110. Therefore, it can be reliably sensed whether the user is holding the interactive control unit 100.

[0057] In some embodiments, Figure 8As shown, the signal transceiver is connected to the large-screen display controller in a wired manner so that the signal transceiver directly transmits the switching instruction sent by the interactive control unit 100 to the large-screen display controller when receiving it. Specifically, the embodiment of the present application sets a connection channel between the signal transceiver and the large-screen display controller, so that the signal transceiver can directly transmit the switching instruction to the large-screen display controller without the need for transfer by other devices, such as the user's computer. In this way, the transmission speed of the switching instruction is faster, that is, the switching response is faster, which enhances the user experience; at the same time, the method without the need for transfer by other devices also prevents the situation where the switching instruction cannot be transferred to the large-screen display controller due to failure, maintenance, replacement, etc. of other devices, thereby enhancing reliability. In some embodiments, the signal transceiver and the large-screen display controller are connected via an RS232 cable. Specifically, since the embodiments of the present application are applied to large space scenes, the distance between the signal transceiver and the large-screen display controller is uncertain under different environments. Therefore, the embodiments of the present application use the RS232 method with strong anti-interference ability to connect the signal transceiver and the large-screen display controller, so that the transmission of switching instructions is more stable and the reliability is enhanced.

[0058] In some embodiments, the signal transceiver is provided with an antenna module, and the antenna module is used to enhance the signal receiving capability of the signal transceiver. Specifically, for the convenience of user operation, the interactive control unit 100 in the embodiment of the present application is usually wireless, so the embodiment of the present application sets an antenna module in the signal transceiver to enhance the signal receiving capability, so that the signal transceiver can better receive the signal sent by the interactive control unit 100, including the switching instruction, thereby enhancing reliability.

[0059] The present application also provides a virtual reality display system. Fig. 9 As shown, the interactive control unit 100, the display screen 200, the large-screen display controller 300, the user computer 400, the signal transceiver 500 and the 3D glasses 600 as described in any of the above embodiments may be included. Fig. 9 As shown, the interactive control unit 100 may include a control circuit 110, a button circuit 120, a wireless transmission circuit 130 and a sensor circuit 140; at the same time, the signal transceiver 500 and the large-screen display controller 300 may be connected via an RS232 cable. Please refer to the previous discussion for the specific implementation method.

[0060] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An interactive control unit, characterized in that: include: Control circuit; A key circuit connected to the control circuit; The key circuit is used to respond to the user's switching operation and transmit a preset switching electrical signal to the control circuit; as well as A wireless transmitting circuit connected to the control circuit; the control circuit is used to send a switching instruction to a signal transceiver in a virtual reality display system through the wireless transmitting circuit when receiving the switching electrical signal; Among them, the signal transceiver is used to send the switching instruction to the large-screen display controller in the virtual reality display system, and the switching instruction is used to instruct the large-screen display controller to switch between 2D display and 3D display.

2. The interactive control unit according to claim 1, characterized in that: One end of the key circuit is connected to a high level voltage, and the other end is connected to a low level pin of the control circuit; The key circuit is used to respond to the user's switching operation and connect the high-level voltage with the low-level pin; wherein the switching electrical signal is a rising edge signal.

3. The interactive control unit according to claim 2, characterized in that: The key circuit includes a first physical key; the first physical key is used to connect the high-level voltage and the low-level pin when pressed by a user; the first physical key has no other functions; or, The key circuit includes a plurality of second physical keys; the plurality of second physical keys are used to connect the high-level voltage and the low-level pin when pressed by the user at the same time; the second physical keys have other functions.

4. The interactive control unit according to claim 1, characterized in that: The interactive control unit also includes a sensor circuit; The sensor circuit is connected to the control circuit and is used to transmit a preset hand-held electrical signal to the control circuit when sensing that the user is holding the interactive control unit; Wherein, the handheld electrical signal is used to instruct the control circuit to send the switching instruction when receiving the switching electrical signal.

5. The interactive control unit according to claim 4, characterized in that: The sensor circuit includes a pressure sensor, which is arranged on the user-gripped portion of the shell of the interactive control unit; the pressure sensor is used to transmit the handheld electrical signal to the control circuit when pressed by the user.

6. The interactive control unit according to claim 5, characterized in that: The number of the pressure sensors is plural, and the pressure sensors are dispersedly arranged on the user gripping portion.

7. The interactive control unit according to any one of claims 1 to 6, characterized in that: The signal transceiver is connected to the large-screen display controller in a wired manner, so that the signal transceiver directly transmits the switching instruction to the large-screen display controller when receiving the switching instruction.

8. The interactive control unit according to claim 7, characterized in that: The signal transceiver is connected to the large-screen display controller via an RS232 cable.

9. The interactive control unit according to any one of claims 1 to 6, characterized in that: The signal transceiver is provided with an antenna module, and the antenna module is used to enhance the signal receiving capability of the signal transceiver.

10. A virtual reality display system, characterized in that: include: A display screen, a large-screen display controller, a user computer, a signal transceiver, 3D glasses, and an interactive control unit as described in any one of claims 1 to 9.

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