CN113473107A - Head-mounted display equipment, signal transmission method and device thereof, and storage medium - Google Patents
Head-mounted display equipment, signal transmission method and device thereof, and storage medium Download PDFInfo
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- H—ELECTRICITY
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- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
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- G02B27/0176—Head mounted characterised by mechanical features
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Abstract
The invention discloses a head-mounted display device, a signal transmission method and a signal transmission device thereof, and a computer readable storage medium, wherein the head-mounted display device comprises: a frame body and a temple member rotatably connected to the frame body via a hinge; the frame body comprises a video component, and the video component comprises a display and/or a camera; the temple component comprises an application processor and a first communication processor connected with the application processor through a first cable; the first communication processor is connected to the video assembly through a second cable penetrating through the hinge, and the first communication processor is used for completing conversion between the first cable communication signal and the second cable communication signal; the number of the second cables is less than that of the first cables; according to the invention, through the arrangement of the first communication processor in the temple component, the second cables with less cables penetrate through the hinge to realize the interconnection between the frame main body and the PCB in the temple component, so that the number of lines penetrating through the hinge is reduced, and the occupation of the PCB space is reduced.
Description
Technical Field
The invention relates to the technical field of wearable equipment, in particular to head-mounted display equipment, a signal transmission method and a signal transmission device of the head-mounted display equipment and a computer-readable storage medium.
Background
With the development of modern society technologies, head-mounted display devices such as VR (Virtual Reality) devices, AR (Augmented Reality) devices, and MR (mixed Reality) devices are increasingly widely used.
For a binocular integrated head mounted display device (such as the smart glasses shown in fig. 1), an AP (Application Processor) and video components (such as a display and a camera, etc.) are generally provided. If the head-mounted display device is designed to be as small as possible, as shown in fig. 1, the AP and the corresponding communication circuit, which occupy a large space, need to be removed from the frame body at the front end and put into the temple bars at both sides, and only the necessary video components and the corresponding control circuits are left at the front end.
In the prior art, dedicated high-speed image data is transmitted between an AP and a video component through links such as MIPI (Mobile Industry Processor Interface), PCI-e (peripheral component interconnect express), and the like, and the functions of powering on, resetting, interrupting, and the like of a base are controlled through GPIO (General Purpose Input Output) and other slow lines (e.g., I2C, UART), and the like, so that the total number of data lines exceeds 100, even reaches 200, and these lines all need to be led out from a PCB (printed circuit board) where the AP is located, and are connected to a display front end through a physical connection line through a Hinge (Hinge). And Hinge is used for folding the legs of the two sides of the head-mounted display device, needs a special structural design, needs to ensure free turning, and needs to penetrate through a certain number of data lines. Under the condition that the glasses legs are thin, the reserved threading space is small, and the width and the thickness of a flat cable, a coaxial cable or an FPC (printed circuit) cable penetrating through Hinge are limited; moreover, the difficulty of free rotation of the rotating shaft is increased by more flat cables, coaxial cables or thicker FPC (flexible printed circuit) cables; meanwhile, a large number of data lines are led out from the PCBs on the two sides of the Hinge, the number of required pins of the corresponding connector is large, more PCB space is occupied, and the design difficulty is increased.
Therefore, how to reduce the number of wires passing through the hinge between the frame body and the temple member of the head-mounted display device and reduce the number of pins of the connectors on the PCBs at both ends is a problem which is urgently needed to be solved nowadays.
Disclosure of Invention
The invention aims to provide a head-mounted display device, a signal transmission method and a signal transmission device thereof, and a computer readable storage medium, so as to reduce the number of lines passing through a hinge, reduce the number of pins of connectors on a PCB in a glasses frame main body and a glasses leg component, and reduce the design difficulty of the head-mounted display device.
To solve the above technical problem, the present invention provides a head-mounted display device, including: a frame body and a temple member rotatably connected to the frame body via a hinge;
wherein the frame body comprises a video component comprising a display and/or a camera; the temple piece comprises an application processor and a first communication processor connected with the application processor through the first cable; the first communication processor is connected to the video assembly through a second cable passing through the hinge, and is used for completing conversion between a first cable communication signal and a second cable communication signal, so that the application processor controls the video assembly through the first cable communication signal; the number of cables of the second cable is smaller than the number of cables of the first cable.
Optionally, the communication speed of the second cable is greater than the communication speed of the first cable.
Optionally, the frame body further includes: a second communication processor;
the first communication processor is connected with the video assembly sequentially through the second cable, the second communication processor and a third cable, the number and the type of the third cable are the same as those of the first cable, and the second communication processor is used for completing conversion between a second cable communication signal and a third cable communication signal.
Optionally, the first cable and the third cable are both GPIO cables.
The invention also provides a signal transmission method of the head-mounted display device, which is applied to the head-mounted display device and comprises the following steps:
the first communication processor monitors a first target communication signal in the first cable; wherein the first target communication signal is a changed first cable communication signal;
converting the first target communication signal into a first transmission communication signal; wherein the first transmission communication signal is a second cable communication signal corresponding to the first target communication signal;
sending the first transmission communication signal to a target video device; the target video device is a video device corresponding to the first target communication signal in the video component.
Optionally, when the head-mounted display device includes the second communication processor in the frame main body, after the first transmission of the communication signal to the video component, the method further includes:
receiving the first transmission communication signal by a second communication processor;
converting the first transmission communication signal into a second target communication signal; wherein the second target communication signal is a third cable communication signal corresponding to the first transmission communication signal;
transmitting the second target communication signal to the target video device.
Optionally, the method further includes:
the first communication processor receives a second transmission communication signal transmitted by the response video device; wherein the responding video device is a video device in the video component;
converting the second transmit communication signal to a third target communication signal; wherein the third target communication signal is a first cable communication signal corresponding to the second transmission communication signal;
and sending the third target communication signal to a corresponding pin of the response video device in an application processor.
Optionally, when the head-mounted display device includes the second communication processor in the frame main body, before the first communication processor receives the second transmission communication signal transmitted by the video device, the method further includes:
the second communication processor monitoring a fourth target communication signal in a third cable; wherein the fourth target communication signal is a third cable communication signal that changes;
converting the fourth target communication signal into the second transmit communication signal;
sending the second transmission communication signal to the first communication processor.
The invention also provides a signal transmission device of a head-mounted display device, which is applied to the head-mounted display device and comprises:
a monitoring module for monitoring a first target communication signal in a first cable; wherein the first target communication signal is a changed first cable communication signal;
a conversion module for converting the first target communication signal into a first transmission communication signal; wherein the first transmission communication signal is a second cable communication signal corresponding to the first target communication signal;
a sending module for sending the first transmission communication signal to a target video device; the target video device is a video device corresponding to the first target communication signal in the video component.
The present invention also provides a computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, implements the steps of the signal transmission method of the head-mounted display device as described above.
The invention provides a head-mounted display device, comprising: a frame body and a temple member rotatably connected to the frame body via a hinge; the frame body comprises a video component, and the video component comprises a display and/or a camera; the temple component comprises an application processor and a first communication processor connected with the application processor through a first cable; the first communication processor is connected to the video assembly through a second cable penetrating through the hinge, and the first communication processor is used for completing conversion between a first cable communication signal and a second cable communication signal, so that the application processor controls the video assembly through the first cable communication signal; the number of cables of the second cable is smaller than the number of cables of the first cable.
Therefore, the first communication processor in the glasses leg component is arranged, the second cables with fewer cables penetrate through the hinge to achieve interconnection between the glasses frame main body and the PCB in the glasses leg component, the number of lines penetrating through the hinge is reduced, the number of pins of the connectors on the PCB in the glasses frame main body and the glasses leg component is reduced, and the space occupation and the design difficulty of the PCB are reduced; and the first communication processor is utilized to realize the conversion of the communication signals in the first cable and the second cable, so that a communication control program in the application processor does not need to be changed, and the test difficulty is reduced. In addition, the invention also provides a signal transmission method and device of the head-mounted display equipment and a computer readable storage medium, and the beneficial effects are also achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a head-mounted display device according to an embodiment of the present invention
Fig. 2 is a block diagram of a head-mounted display device according to an embodiment of the present invention;
fig. 3 is a flowchart of a signal transmission method of a head-mounted display device according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of another signal transmission method for a head-mounted display device according to an embodiment of the present invention;
fig. 5 is a flowchart of another signal transmission method for a head-mounted display device according to an embodiment of the present invention;
fig. 6 is a block diagram of a signal transmission apparatus of a head-mounted display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2, fig. 2 is a block diagram of a head-mounted display device according to an embodiment of the present invention. The head mounted display device may include: a frame body 10 and a temple member 30 rotatably connected to the frame body 10 by a Hinge 20 (Hinge);
wherein, the frame body 10 comprises a video assembly 11, the video assembly 11 comprises a display and/or a Camera (Camera); the temple part 30 includes an application processor 31 and a first communication processor 32(MUX1) connected to the application processor 31(AP) through a first cable; the first communication processor 32 is connected to the video module 11 through a second cable passing through the hinge 20, the first communication processor 32 is used for completing conversion between a first cable communication signal and a second cable communication signal, so that the application processor 31 controls the video module through the first cable communication signal; the number of cables of the second cable is smaller than the number of cables of the first cable.
It is understood that the head mounted display apparatus provided in the present embodiment may be a head mounted display apparatus including a frame body 10 and two temple members 30 rotatably connected to the hinge 20 of the frame body 10. Among them, the video module 11 and the corresponding control circuit (such as a display control circuit and a camera control circuit) in the present embodiment may be provided in the frame body 10, and the application processor 31 and the corresponding communication circuit in the present embodiment may be provided in any one of the temple members 30; that is, in the present embodiment, the application processor 31 and the corresponding communication circuit, which occupy a large space, are removed from the frame body 10 and placed in the temple member 30, thereby enabling the head-mounted display device to be designed to be more compact.
Correspondingly, the first communication processor 32 disposed in the same temple member 30 as the application processor 31 in this embodiment can perform conversion between the first cable communication signal and the second cable communication signal, and can perform communication signal transmission between the application processor 31 and the video component 11 by using the second cable with a smaller number of cables, thereby reducing the number of lines passing through the hinge; and the first communication processor 32 may be provided on the same PCB as the application processor 31, reducing the number of pins of the connectors on the PCB in the frame body and the temple member.
Specifically, the present embodiment does not limit the specific type of the first cable connected between the application processor 31 and the first communication processor 32, for example, the first cable may be a slow cable for performing communication control between the application processor 31 and the video component 11 in the head-mounted display device in the prior art, such as a GPIO cable, an I2C (a two-wire serial bus) cable, and a UART (Universal Asynchronous Receiver/Transmitter) cable; that is to say, in this embodiment, the first communication processor 32 completes the conversion between the first cable communication signal and the second cable communication signal, so that the application processor 31 can perform communication control on the video component 11 through the communication signal (i.e., the first cable communication signal) in the first cable, that is, the application processor 31 can still perform communication control on the video component 11 through the first cable in the existing communication control manner, such as implementing communication control functions of power-on, reset, and interrupt, and does not need to modify the program in the application processor 31, thereby avoiding additional work and potential problems caused by modifying the program in the application processor 31, and reducing the difficulty of testing and post-maintenance; that is, the application processor 31 does not need to sense the existence of the first communication processor 32, and can consider that its first cable is directly connected to the video module 11 located in the frame body 10, so that it is not necessary to make any changes to the existing communication control program.
It should be noted that the second cable in this embodiment may be a cable that the first communication processor 32 in the temple piece 30 connects to the video component 11 through the hinge 20. The embodiment does not limit the specific cable type of the second cable, for example, the communication speed of the second cable may be greater than the communication speed of the first cable, so as to reduce the communication control delay of the application processor 31 on the video module 11.
Specifically, in this embodiment, the first communication processor 32 may be directly connected to the video module 11 or a control circuit corresponding to the video module 11 through a second cable. As shown in fig. 2, the first communication processor 32 may also be connected to the second communication processor 12(MUX2) through a second cable, so as to be connected to the video component 11 or the control circuit corresponding to the video component 11 through a third cable connected to the second communication processor 12; that is, in this embodiment, the frame body 10 may further include a second communication processor 12, the first communication processor 31 may be connected to the video component 11 sequentially through the second cable, the second communication processor 12 and the third cable, the second communication processor 12 and the second communication processor 12 may complete conversion between the second cable communication signal and the third cable communication signal, so that the first cable communication signal may be transmitted through the second cable between the first communication processor 32 and the second communication processor 12 and then converted into the third cable communication signal, thereby implementing communication control of the application processor 31 on the video component 11.
Correspondingly, the third cable between the second communication processor 12 and the video component 11 in this embodiment may correspond to the first cable between the application processor 31 and the first communication processor 32, i.e. the third cable and the first cable may be cables with the same number and type of cables (e.g. GPIO cables), so that the first communication processor 32 and the second communication processor 12 between the application processor 31 and the video module 11 can perform peer-to-peer processing of communication signals, so that the communication signals in the first cable and the third cable can be synchronized after being transmitted through the first communication processor 32, the second cable and the second communication processor 12, therefore, the existing software program in the application processor 31 does not need to be modified, the implementation is easy, and the first communication processor 32, the second cable and the second communication processor 12 between the application processor 31 and the video component 11 have replaceability; that is, in this embodiment, a first communication processor 32, a second communication processor 12 and a second cable may be added between the slow cables (i.e. the first cable and the third cable) connected between the application processor 31 and the video component 11, so that a large number of slow cables (i.e. the first cable, such as GPIO1 to GPIO n in fig. 2) output by the application processor 31 are firstly connected and converged to the first communication processor 32, the first communication processor 32 detects changes of these communication signals (i.e. the first cable communication signals), and transmits the summarized information to the second communication processor 12 through the second cable, the second communication processor 12 analyzes the second cable communication signals and adjusts corresponding output pins, and transmits corresponding communication signals (i.e. the first cable communication signals or the third cable communication signals) to the corresponding video component 11 through the slow cables (i.e. the third cable, such as GPIO1 to GPIO n in fig. 2), the third cable, to which the video module 11 is connected, is changed in synchronization with the communication signal of the first cable to which the application processor 31 is connected, so that the hinge 20 is penetrated with the second cable having a smaller number of cables. For example, the GPIO1 output by the AP in fig. 2 will exhibit the same change in the GPIO1 output by the MUX2 after a short delay, which is negligible with respect to the timing of the slow cable, and is equivalent to the equivalent low delay exhibited by the AP output on the video component 11. Similarly, the second communication processor 12 can collect the third cable communication signal variation inputted by the video component 11 and transmit the third cable communication signal variation to the first communication processor 32 in a reverse direction, and the first communication processor 32 can adjust the corresponding first cable communication signal output after analyzing the third cable communication signal variation, and synchronize the communication signal variation of the video component 11 to the application processor 31.
Specifically, the present embodiment does not limit the specific types of the first communication processor 32, the second communication processor 12, and the second cable, for example, the first communication processor 32 and the second communication processor 12 may specifically be an MCU (single chip microcomputer), a DSP (digital signal processor), or an FPGA (field programmable gate array), and the first communication processor 32 and the second communication processor 12 may be the same type of devices, such as both MCUs; the first communication processor 32 and the second communication processor 12 may be different types of devices. The second cable can be a mature high-speed cable, such as a USB (universal serial bus) cable or a PCI-e cable, and can also be a private connecting cable; for example, when the second cable is a USB2.0 cable, only 2 wires are needed to realize the bidirectional interconnection between the first communication processor 32 and the second communication processor 12; when the second cable adopts a USB3.0 cable, the 4 wires can realize bidirectional interconnection; in this way, no matter how many slow cables the application processor 31 needs to interconnect with the video component 11, only the second cable of 2 or 4 wires is needed to realize the expansion and transmission of the slow cables finally; and the reduction of slow speed cable quantity has effectively reduced the quantity of connector on the PCB, has reduced the PCB area that occupies, has reduced the quantity of Hinge threading.
In this embodiment, by setting the first communication processor 32 in the temple member 30, the second cable with a smaller number of cables passes through the hinge to realize the interconnection between the frame body 10 and the PCB in the temple member 30, so that the number of lines passing through the hinge 20 is reduced, the number of pins of the connectors on the PCB in the frame body 10 and the temple member 30 is reduced, and the space occupation and the design difficulty of the PCB are reduced; and the first communication processor 32 is used for realizing the conversion of the communication signals in the first cable and the second cable, so that the communication control program in the application processor 31 does not need to be changed, and the test difficulty is reduced.
Referring to fig. 3, fig. 3 is a flowchart illustrating a signal transmission method of a head-mounted display device according to an embodiment of the present invention. The method can be applied to the head-mounted display device provided by the embodiment, and comprises the following steps:
step 101: the first communication processor monitors a first target communication signal in the first cable; wherein the first target communication signal is a changed first cable communication signal.
It is understood that, in this step, the first communication processor provided in the temple component of the head-mounted display device may monitor the communication signal (i.e., the first cable communication signal, such as a GPIO signal) in the first cable connected to the application processor in the temple component, and obtain the changed communication signal (i.e., the first target communication signal), that is, the communication control signal sent by the application processor to the corresponding video device in the video component 11 in the frame main body.
Specifically, the specific manner in which the first communication processor monitors the first target communication signal in the first cable in this step may be set by a designer according to a use scenario and a user requirement, for example, the first communication processor may detect the first cable communication signal in the first cable at a preset time interval to obtain the first target communication signal; as shown in fig. 4, when the first cable is a GPIO cable, the first communication processor (MUX1) may monitor GPIO signals of all GPIO cables in real time; if the GPIO signal is not changed, the GPIO signal is continuously monitored; if there is a changed GPIO signal (i.e., the first target communication signal), step 102 may be entered to perform data encoding on the changed GPIO signal and convert the changed GPIO signal into a corresponding first transmission communication signal. As long as the first communication processor can detect the changed communication signal in the first cable, this embodiment is not limited in any way.
Step 102: converting the first target communication signal into a first transmission communication signal; the first transmission communication signal is a second cable communication signal corresponding to the first target communication signal.
It is understood that the first transmission communication signal in this step may be a communication signal converted from the first target communication signal and required to be transmitted to the target video device through the second cable; that is, in this embodiment, the first communication processor may convert the first target communication signal transmitted from the application processor to the target video device through the first cable into the first transmission communication signal in the second cable for transmission to the target video device.
Specifically, the specific manner in which the first communication processor converts the first target communication signal into the first transmission communication signal in this embodiment may be set by a designer according to a practical scenario and a user requirement, for example, the first communication processor may only encode the first transmission communication signal and convert the first target communication signal into corresponding high-speed information (i.e., the second cable communication signal) transmitted by the second cable; the first communication processor may also encode all the first cable communication signals including the first transmission communication signal, and convert all the first cable communication signals into corresponding high-speed information transmitted by the second cable, that is, the second cable communication signals corresponding to all the first cable communication signals. The embodiment does not limit the first communication processor to convert the first target communication signal into the corresponding second cable communication signal (i.e. the first transmission communication signal).
Likewise, the present embodiment does not limit the specific signal types of the first cable communication signal and the second cable communication signal, for example, the first cable communication signal may be a communication signal of a low-speed cable, such as a GPIO signal of a GPIO cable; the second cable communication signal may be a communication signal of a high speed cable, such as a USB signal of a USB cable.
Step 103: sending a first transmission communication signal to a target video device; the target video device is a video device corresponding to the first target communication signal in the video assembly.
It is understood that the target video device in the present embodiment may be a video device (such as a display, a camera, and the like) in a video component to be controlled by the application processor by outputting the first target communication signal.
Specifically, the specific mode of sending the first transmission communication signal to the target video device by the first communication processor in this step may be set by the designer according to the practical scene and the user requirement, and if the second communication processor connected to the video component through the third cable is provided in the frame main body of the head-mounted display device, the first communication processor may send the first transmission communication signal to the second communication processor in this step, so that the second communication processor may convert the first transmission communication signal into a corresponding third cable communication signal (i.e., a second target communication signal) and transmit the third cable communication signal to the target video device, thereby implementing communication control of the application processor on the target video device. In this step, the first transmission communication signal may be directly transmitted to the target video device or the corresponding control circuit, that is, the target video device or the corresponding control circuit may directly perform the corresponding operation according to the first transmission communication signal. The present embodiment does not set any limit to this.
Correspondingly, after the first communication processor sends the first transmission communication signal to the second communication processor, the second communication processor can receive the first transmission communication signal; converting the first transmission communication signal into a second target communication signal; transmitting the second target communication signal to the target video device; the second target communication signal is a third cable communication signal corresponding to the first transmission communication signal. That is, after receiving the first transmission communication signal transmitted by the second cable passing through the hinge, the second communication processor may decode the first transmission communication signal to obtain a decoding result (e.g., the first target communication signal), and correspondingly adjust the output pin of the third cable according to the decoding result to output the corresponding third cable communication signal (e.g., the second target communication signal).
As shown in fig. 4, when the first cable and the third cable are both GPIO cables, the first communication processor (MUX1) may perform data coding on GPIO signal changes (i.e., the first target communication signal) in the first cable, and transmit high-speed information (i.e., the first transmission communication signal) obtained by coding to the second communication processor (MUX2) through the second cable, so that the second communication processor (MUX2) may analyze the high-speed information and then correspondingly adjust the output pin of the third cable, thereby implementing synchronous changes of GPIO signals in the first cable and the third cable; for example, the communication signal change of the GPIO1 cable output by the Application Processor (AP) in fig. 2 will be reflected on the GPIO1 cable output by the second communication processor (MUX2) after a short delay, which is negligible with respect to the timing of the slow cable, and is equivalent to the reflection of the equivalent and low-delay output of the application processor on the video component.
In this embodiment, the number of lines passing through the hinge is reduced by sending the first transmission communication signal to the target video device and performing communication control on the video component by using the second cable with a smaller number of cables passing through the hinge by using the arrangement of the first communication processor in the temple component; the first target communication signal is converted into the first transmission communication signal, and the first communication processor is used for realizing the conversion of the communication signals in the first cable and the second cable, so that a communication control program in the application processor does not need to be changed, and the test difficulty is reduced.
Based on the above embodiments, in order to implement bidirectional communication between the application processor in the temple member and the video component in the frame main body, the signal transmission method for the head-mounted display device provided by this embodiment may further include a process in which the video component communicates with the application processor. Specifically, referring to fig. 5, fig. 5 is a flowchart of another signal transmission method for a head-mounted display device according to an embodiment of the present invention. The method can comprise the following steps:
step 201: the first communication processor receives a second transmission communication signal transmitted by the response video device; wherein the responding video device is a video device in the video component.
It is understood that the responding video device in this step may be a video device in the video component that transmits the communication signal to the application processor. The second transmission communication signal in this step may be a communication signal transmitted in the second cable in response to the video device sending to the application processor, for example, when a second communication processor connected to the video component through a third cable is disposed in the frame main body of the head-mounted display device, the second transmission communication signal may be a third cable communication signal (i.e., a fourth target communication signal) that is converted by the second communication processor and changed, so as to transmit a second cable communication signal (i.e., a second transmission communication signal) corresponding to the fourth target communication signal to the first communication processor through the second cable.
Correspondingly, when the second communication processor is arranged in the frame main body of the head-mounted display device, before the step, the second communication processor can monitor a fourth target communication signal in the third cable; converting the fourth target communication signal into a second transmission communication signal; sending a second transmission communication signal to the first communication processor; wherein the fourth target communication signal is a changed third cable communication signal. That is, the third cable communication signal in the third cable may be monitored, and the changed third cable communication signal (i.e., the fourth target communication signal) may be monitored, that is, the communication signal sent to the application processor in response to the video device; and the fourth target communication signal is coded, converted into a corresponding second transmission communication signal and transmitted to the first communication processor through the second cable. As shown in fig. 2, when the first cable and the third cable are both GPIO cables, the communication signal change of the GPIO1 cable output by the video device (display 1) will be reflected on the GPIO1 cable output by the first communication processor (MUX1) after a short delay, which is equivalent to the reflection of the equivalent and low-delay output of the video component on the application processor.
Step 202: converting the second transmission communication signal into a third target communication signal; the third target communication signal is a first cable communication signal corresponding to the second transmission communication signal.
It is understood that the third target communication signal in this step may be a communication signal which is converted from the second transmission communication signal and needs to be transmitted to the application processor through the first cable; that is, in this embodiment, the first communication processor may convert the second transmission communication signal transmitted from the video device to the application processor through the second cable into the third target communication signal in the first cable, and transmit the third target communication signal to the application processor.
Specifically, for the specific manner in which the first communication processor converts the second transmission communication signal into the third target communication signal in this embodiment, the designer may set the specific manner, for example, the first communication processor decodes the second transmission communication signal to obtain a decoding result (for example, the fourth target communication signal), so as to correspondingly obtain the first cable communication signal (that is, the third target communication signal) that needs to be sent to the application processor through the first cable.
Step 203: and sending the third target communication signal to a corresponding pin of the response video device in the application processor.
Specifically, in this step, the first communication processor may send the third target communication signal to a pin corresponding to the response video device in the application processor, and send the third target communication signal to the application processor through the first cable, so that the application processor receives the communication signal output by the response video device through the first cable.
In this embodiment, the first communication processor receives the second transmission communication signal transmitted by the video device in response, and the second cable with a smaller number of cables passing through the hinge is used to receive the communication signal of the video component, thereby reducing the number of lines passing through the hinge; the second transmission communication signal is converted into a third target communication signal, and the first communication processor is used for realizing the conversion of the communication signals in the first cable and the second cable, so that a communication control program in the application processor does not need to be changed, and the test difficulty is reduced.
Referring to fig. 6, fig. 6 is a block diagram of a signal transmission apparatus of a head-mounted display device according to an embodiment of the present invention. The device is applied to the head-mounted display equipment, and can comprise:
a monitoring module 100 for monitoring a first target communication signal in a first cable; the first target communication signal is a changed first cable communication signal;
a conversion module 200 for converting the first target communication signal into a first transmission communication signal; the first transmission communication signal is a second cable communication signal corresponding to the first target communication signal;
a sending module 300, configured to send a first transmission communication signal to a target video device; the target video device is a video device corresponding to the first target communication signal in the video assembly.
Optionally, the apparatus may further include:
a receiving module for receiving a second transmission communication signal transmitted in response to the video device; wherein the responding video device is a video device in the video component;
a response conversion module for converting the second transmission communication signal into a third target communication signal; the third target communication signal is a first cable communication signal corresponding to the second transmission communication signal;
and the response sending module is used for sending the third target communication signal to a corresponding pin of the response video device in the application processor.
Specifically, the signal transmission device provided in this embodiment may be applied to the first communication processor in the temple component of the head-mounted display device.
In this embodiment, the embodiment of the present invention utilizes the arrangement of the first communication processor in the temple component, sends the first transmission communication signal to the target video device through the sending module 300, and utilizes the second cable with less cables passing through the hinge to perform communication control on the video component, thereby reducing the number of lines passing through the hinge; the first target communication signal is converted into the first transmission communication signal through the conversion module 200, and the first communication processor is used for realizing the conversion of the communication signals in the first cable and the second cable, so that a communication control program in the application processor does not need to be changed, and the test difficulty is reduced.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the signal transmission method of the head-mounted display device provided in the above embodiment. The computer storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device and the computer-readable storage medium disclosed by the embodiments correspond to the method disclosed by the embodiments, so that the description is simple, and the relevant points can be referred to the method part for description.
The head-mounted display device, the signal transmission method and apparatus thereof, and the computer-readable storage medium provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A head-mounted display device, comprising: a frame body and a temple member rotatably connected to the frame body via a hinge;
wherein the frame body comprises a video component comprising a display and/or a camera; the temple piece comprises an application processor and a first communication processor connected with the application processor through the first cable; the first communication processor is connected to the video assembly through a second cable passing through the hinge, and is used for completing conversion between a first cable communication signal and a second cable communication signal, so that the application processor controls the video assembly through the first cable communication signal; the number of cables of the second cable is smaller than the number of cables of the first cable.
2. The head-mounted display device according to claim 1, wherein a communication speed of the second cable is greater than a communication speed of the first cable.
3. The head-mounted display apparatus according to claim 1 or 2, wherein the frame body further comprises: a second communication processor;
the first communication processor is connected with the video assembly sequentially through the second cable, the second communication processor and a third cable, the number and the type of the third cable are the same as those of the first cable, and the second communication processor is used for completing conversion between a second cable communication signal and a third cable communication signal.
4. The head-mounted display device of claim 3, wherein the first cable and the third cable are both GPIO cables.
5. A signal transmission method for a head-mounted display device, applied to the head-mounted display device according to any one of claims 1 to 4, comprising:
the first communication processor monitors a first target communication signal in the first cable; wherein the first target communication signal is a changed first cable communication signal;
converting the first target communication signal into a first transmission communication signal; wherein the first transmission communication signal is a second cable communication signal corresponding to the first target communication signal;
sending the first transmission communication signal to a target video device; the target video device is a video device corresponding to the first target communication signal in the video component.
6. The signal transmission method of the head-mounted display device according to claim 5, wherein when the head-mounted display device includes the second communication processor in the frame body, after the first transmission of the communication signal to the video component, the method further comprises:
receiving the first transmission communication signal by a second communication processor;
converting the first transmission communication signal into a second target communication signal; wherein the second target communication signal is a third cable communication signal corresponding to the first transmission communication signal;
transmitting the second target communication signal to the target video device.
7. The signal transmission method of the head-mounted display device according to claim 5 or 6, further comprising:
the first communication processor receives a second transmission communication signal transmitted by the response video device; wherein the responding video device is a video device in the video component;
converting the second transmit communication signal to a third target communication signal; wherein the third target communication signal is a first cable communication signal corresponding to the second transmission communication signal;
and sending the third target communication signal to a corresponding pin of the response video device in an application processor.
8. The signal transmission method of the head-mounted display device according to claim 7, wherein when the head-mounted display device includes the second communication processor in the frame body, before the first communication processor receives the second transmission communication signal transmitted by the video device, the method further comprises:
the second communication processor monitoring a fourth target communication signal in a third cable; wherein the fourth target communication signal is a third cable communication signal that changes;
converting the fourth target communication signal into the second transmit communication signal;
sending the second transmission communication signal to the first communication processor.
9. A signal transmission device of a head-mounted display apparatus, applied to the head-mounted display apparatus according to any one of claims 1 to 4, comprising:
a monitoring module for monitoring a first target communication signal in a first cable; wherein the first target communication signal is a changed first cable communication signal;
a conversion module for converting the first target communication signal into a first transmission communication signal; wherein the first transmission communication signal is a second cable communication signal corresponding to the first target communication signal;
a sending module for sending the first transmission communication signal to a target video device; the target video device is a video device corresponding to the first target communication signal in the video component.
10. A computer-readable storage medium, characterized in that a computer program is stored thereon, which, when being executed by a processor, carries out the steps of the signal transmission method of a head-mounted display device according to any one of claims 5 to 8.
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