CN113163191A

CN113163191A - Split type short-focus VR equipment

Info

Publication number: CN113163191A
Application number: CN202110354580.4A
Authority: CN
Inventors: 翁志彬
Original assignee: Hangzhou Xiaopai Intelligent Technology Co ltd
Current assignee: Hangzhou Pimax Intelligent Technology Co ltd; Shanghai Xiaopai Virtual Reality Information Technology Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-07-23
Anticipated expiration: 2041-03-30
Also published as: CN113163191B

Abstract

The application relates to a split type short burnt VR equipment, wherein, this split type short burnt VR equipment includes: the device comprises a processor unit, an active optical fiber and a head-mounted unit, wherein the processor unit is connected with the head-mounted unit through the active optical fiber, two ends of the active optical fiber are respectively packaged with an electric-to-light PCB and a light-to-electricity PCB, the electric-to-light PCB is connected with one end of the processor unit, and the light-to-electricity PCB is connected with one end of the head-mounted unit; the processor unit outputs MIPI signals, the MIPI signals are transmitted to the head-mounted unit through the internal transmission of the active optical fibers, the problems that the existing split VR equipment is large in head-mounted weight and inconvenient to carry and high in cost are solved, the conversion chip is omitted while the signal transmission quality is guaranteed, the weight and the size are reduced, and the cost is saved.

Description

Split type short-focus VR equipment

Technical Field

The application relates to the technical field of VR, in particular to split type short-focus VR equipment.

Background

With the rapid development of information technology, the development of VR technology is also faster and faster, and at present, the whole VR industry develops towards the trend of miniaturization, convenience and mobility of equipment. The biggest appeal of VR is the sense of immersion, and how to guarantee the sense of immersion and the visual comfort level of VR helmet, this is all closely relevant with platform, optics Lens, FOV, display screen, broadcast content etc.. However, the miniaturization of the existing VR all-in-one machine is very difficult, mainly because the whole processing platform and the battery are both in the head-wearing device, if the VR is intentionally miniaturized, a lot of functions are lost, and compared with the all-in-one machine, the split VR just makes up the inherent deficiency of the all-in-one machine, and simultaneously also has the advantage of portability of the all-in-one machine.

In the related technology, currently, the mainstream split VRs on the market are portable VR devices produced by manufacturers such as 3Glasses, hua VR, Pareal and the like, however, the devices are mainly improved from the design of an optical system and a head-wearing end, and a copper wire is adopted for transmitting video data so as to ensure the signal quality and reliability of the product; moreover, most of display screens on the market at present are MIPI interfaces, but the MIPI has requirements on the length of wiring in a board, and generally within 20CM, overlong can affect the signal quality, so the mainstream scheme is to reduce the length of the line by wiring in the board, however, the problem is brought, namely, a chip must be added in the middle for interface conversion, a video interface capable of being transmitted in a long distance is converted into an MIPI signal, the size and the weight of a mainboard at a head-wearing end are increased, and the weight and the size of the head-wearing are increased.

At present to in the correlation technique, the VR that current split type VR equipment exists wears weight big, carries inconvenient and problem with high costs, has not proposed effectual solution yet.

Disclosure of Invention

The embodiment of the application provides a split type short-focus VR equipment, and the VR that solves the existing split type VR equipment at least wears weight greatly, carries inconvenient and problem with high costs.

In a first aspect, an embodiment of the present application provides a split type short-focus VR device, where the device includes: a processor unit, an active optical fiber and a head-mounted unit,

the processor unit is connected with the head-mounted unit through the active optical fiber, wherein an electric-to-light PCB and an optical-to-electricity PCB are respectively packaged at two ends of the active optical fiber, the electric-to-light PCB is connected with one end of the processor unit, and the optical-to-electricity PCB is connected with one end of the head-mounted unit;

the processor unit outputs a MIPI signal, which is sent to the head-mounted unit through internal transmission of the active fiber.

In some of these embodiments, the head unit includes an optical lens and an OLED screen.

In some of these embodiments, the OLED screen is connected to the opto-electric PCB board,

and the MIPI signal is used for receiving the MIPI signal transmitted by the active optical fiber and displaying video information.

In some embodiments, a power conversion circuit is arranged on the PCB board for converting light into electricity,

the power supply conversion circuit is used for providing level conversion for the power supply signal of the OLED screen.

In some of these embodiments, before the processor unit outputs a MIPI signal,

the processor unit performs data processing on the MIPI signal, wherein the data processing includes anti-distortion and video decoding.

In some embodiments, a Type-C interface is arranged on the PCB for converting electricity into light,

the processor unit is connected with the active optical fiber through the Type-C interface.

In some embodiments, the Type-C interface comprises:

and reconfiguring the pin of the Type-C interface, and transmitting the MIPI signal output by the processor unit through the physical connector of the Type-C interface.

In some embodiments, an interface conversion circuit is arranged on the PCB board for converting electricity into light,

the Type-C interface converts a Display Port signal into an MIPI signal through the interface conversion circuit and transmits the MIPI signal.

In some embodiments, the processor unit comprises an image processor platform, a wireless transmission module and a Type-C interface, wherein the image processor platform is used for coding and decoding various videos.

In a second aspect, an embodiment of the present application provides a data transmission method for a split type short-focus VR device, where the device includes: the data transmission method comprises the following steps of a processor unit, an active optical fiber and a head-mounted unit, wherein one end of the active optical fiber is connected with the processor unit, the other end of the active optical fiber is connected with the head-mounted unit, and the data transmission method comprises the following steps:

the processor unit outputs MIPI signals, and the MIPI signals are sent to the head-mounted unit through internal transmission of the active optical fiber;

and the head-mounted unit receives the MIPI signal and displays video information corresponding to the MIPI signal.

Compared with the related art, the split type short-focus VR device provided by the embodiment of the application includes: the device comprises a processor unit, an active optical fiber and a head-mounted unit, wherein the processor unit is connected with the head-mounted unit through the active optical fiber, two ends of the active optical fiber are respectively packaged with an electric-to-light PCB and a light-to-electricity PCB, the electric-to-light PCB is connected with one end of the processor unit, and the light-to-electricity PCB is connected with one end of the head-mounted unit; the processor unit outputs MIPI signals, the MIPI signals are transmitted to the head-mounted unit through the internal transmission of the active optical fibers, the problems that the existing split VR equipment is large in head-mounted weight and inconvenient to carry and high in cost are solved, the conversion chip is omitted while the signal transmission quality is guaranteed, the weight and the size are reduced, and the cost is saved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a block diagram of a split short-focus VR device according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a split short-focus VR device in accordance with an embodiment of the present application;

FIG. 3 is a schematic diagram of an interface conversion circuit according to an embodiment of the present application;

fig. 4 is a flowchart of a data transmission method of a split type short-focus VR device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Reference herein to "a plurality" means greater than or equal to two. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.

This embodiment provides a split type short-focus VR device, and fig. 1 is a block diagram of a split type short-focus VR device according to an embodiment of the present application, and as shown in fig. 1, the device includes: a processor unit 10, an active optical fiber 11, and a head-mounted unit 12.

Fig. 2 is a schematic structural diagram of a split short-focus VR device according to an embodiment of the present application, and as shown in fig. 2, a processor Unit 10 (PU) is connected to a Head-mounted Unit 12 (HMU) through an Active Optical cable 11 (AOC), where two ends of the Active Optical cable 11 are respectively packaged with an electrical-to-Optical PCB and an Optical-to-electrical PCB, the electrical-to-Optical PCB is connected to one end of the processor Unit 10, and the Optical-to-electrical PCB is connected to one end of the Head-mounted Unit 12; processor unit 10 outputs MIPI signals, which are sent to head-mounted unit 12 via internal transmission over active fiber 11.

The equipment adopts the active optical fiber to carry out video transmission of the MIPI signal, so that the transmission length of the MIPI signal can be increased, and the reliability of the quality of the transmitted MIPI signal is ensured. The problem of the VR that current split type VR equipment exists wear weight greatly, carry inconvenient and with high costs is solved for equipment portable, reduce cost improve product competitiveness.

In some embodiments, the head unit 12 comprises an optical lens and an OLED screen, wherein the optical lens is independently developed by Pimax, and has high definition and a large field angle;

preferably, the OLED screen in the head unit 12 is connected to the optical-to-electrical PCB at one end of the active fiber 11, and is configured to receive the MIPI signal transmitted by the active fiber 11 and display video information on the screen.

In addition, a power conversion circuit is arranged on the PCB for converting light into electricity, and the power conversion circuit is used for providing level conversion for a power signal of the OLED screen. Optionally, the optical-to-electrical PCB at one end of the active optical fiber 11 converts the optical signal into an electrical signal, and also receives the level conversion function of the power signal required by the OLED screen.

In some of these embodiments, processor unit 10 performs data processing on the MIPI signal before processor unit 10 outputs the MIPI signal, where the data processing includes anti-distortion and video decoding. In this embodiment, the processor unit 10 mainly functions to provide video data and transmit the data through the MIPI signal, but before transmission, data processing such as inverse distortion or video decoding needs to be performed on the video data, so as to improve the quality of the video data.

In some embodiments, a Type-C interface is provided on the electrical-to-optical PCB connected to one end of the processor unit 10, and the processor unit 10 is connected to the active optical fiber 11 through the Type-C interface;

preferably, the design of the Type-C interface includes two schemes, the first scheme is to reconfigure pins of the Type-C interface and transmit the MIPI signal output by the processor unit 10 through the physical connector of the Type-C interface. For example, the 24 pins of the Type-C interface are reconfigured, and the pins a1-a12 are defined as: PWD, DSI0-DN0, DSI0-DP0, DSI0-DN1, DSI0-DP1, DSI0-DN2, DSI0-DP2, DSI0-DN3, DSI0-DP3, DSI0-CN0, DSI0-CP0, GND; the pair of pins B1-B12 are defined as: DSI1-DN0, DSI1-DP0, DSI1-DN1, DSI1-DP1, DSI1-DN2, DSI1-DP2, DSI1-DN3, DSI1-DP3, DSI1-CN0, DSI1-CP0, SDA, SCL.

In addition, a second solution is to provide an interface conversion circuit on a PCB board for electrical conversion to optical, and fig. 3 is a schematic diagram of the interface conversion circuit according to an embodiment of the present application, and as shown in fig. 3, the interface conversion circuit employs a standard CC controller and DP-MIPI bridge chip combination. Optionally, when the Type-C interface on the electrical-to-optical PCB is connected to the processor unit 10, when the signal is accessed, firstly, communication is performed through a CC controller pin, a Display Port signal is negotiated and transmitted, and then the Display Port signal is converted into an MIPI signal through a bridge chip for converting the Display Port into an MIPI signal, so as to complete a conversion process of the signal. The MUX is a switch and can switch the USB signal into a Display port signal.

In some of these embodiments, the processor unit 10 includes an image processor platform for codec conversion of a plurality of videos, a wireless transmission module, and a Type-C interface.

Preferably, in the present embodiment, the image processor platform adopts a platform of currently mainstream SnapDragon XR2, where the platform carries an 8G/512G memory storage combination and can support codec conversion of multiple video formats such as H.265(HEVC), h.264(AVC), Dolby Vision, HDR10+, HLG, HDR10, VP8, and VP 9. SnapDragon XR2 is the first XR platform supporting 5G connection worldwide, and meanwhile, the AI technology is integrated, and the method can be used in the fields of Augmented Reality (AR), Virtual Reality (VR), Mixed Reality (MR) and the like. SnapDragon XR2 can support seven-way parallel cameras, is provided with a computer vision special processor, and can realize real MR user experience by supporting low-delay camera perspective (camera pass-through). In addition, the processor unit 10 also comprises a wireless transmission module of BT5.1/Wifi6.0 and a universal Type-C interface.

The present embodiment also provides a data transmission method of a split type short-focus VR device, and fig. 4 is a flowchart of the data transmission method of the split type short-focus VR device according to the embodiment of the present application, and as shown in fig. 4, the split type short-focus VR device includes: the data transmission method comprises a processor unit, an active optical fiber and a head-mounted unit, wherein one end of the active optical fiber is connected with the processor unit, the other end of the active optical fiber is connected with the head-mounted unit, and the flow of the data transmission method comprises the following steps:

step S401, the processor unit outputs MIPI signals, and the MIPI signals are sent to the head-mounted unit through internal transmission of the active optical fibers;

step S402, the head-mounted unit receives the MIPI signal and displays video information corresponding to the MIPI signal.

Through the steps S401 to S402, the MIPI signal output by the processor unit is subjected to video transmission to the head-wearing unit by adopting the active optical fiber, so that the transmission length of the MIPI signal can be increased, and the reliability of the quality of the transmitted MIPI signal is ensured. The problem of the VR that current split type VR equipment exists wear weight greatly, carry inconvenient and with high costs is solved for equipment portable, reduce cost improve product competitiveness.

It should be noted that the steps illustrated in the above-described flow diagrams or in the flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and that, although a logical order is illustrated in the flow diagrams, in some cases, the steps illustrated or described may be performed in an order different than here.

In addition, in combination with the data transmission method of the split short-focus VR device in the foregoing embodiment, the embodiment of the present application may provide a storage medium to implement. The storage medium having stored thereon a computer program; the computer program, when executed by a processor, implements the data transmission method of any of the split short-focus VR devices in the above embodiments.

In one embodiment, a computer device is provided, which may be a terminal. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a data transmission method of a split short-focus VR device. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

It should be understood by those skilled in the art that various features of the above-described embodiments can be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in detail, but rather, all combinations of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A split short-focus VR device, the device comprising: a processor unit, an active optical fiber and a head-mounted unit,

2. The apparatus of claim 1, wherein the head-mounted unit comprises an optical lens and an OLED screen.

3. The device of claim 2, wherein the OLED screen is connected to the opto-electronic PCB board,

4. The apparatus according to any one of claims 1 to 3, wherein a power conversion circuit is provided on the optical-to-electrical PCB,

5. The apparatus of claim 1, wherein before the processor unit outputs MIPI signals,

6. The device of claim 1, wherein a Type-C interface is provided on the electro-optically converted PCB board,

7. The device of claim 6, wherein the Type-C interface comprises:

8. The apparatus of claim 6, wherein an interface conversion circuit is disposed on the PCB board for converting electricity into light,

9. The apparatus of claim 1,

the processor unit comprises an image processor platform, a wireless transmission module and a Type-C interface, wherein the image processor platform is used for coding and decoding various videos.

10. A data transmission method of a split short-focus VR device, the device comprising: the data transmission method comprises the following steps of a processor unit, an active optical fiber and a head-mounted unit, wherein one end of the active optical fiber is connected with the processor unit, the other end of the active optical fiber is connected with the head-mounted unit, and the data transmission method comprises the following steps: