CN110505518A - One kind wearing display equipment, data transmission method and system - Google Patents
One kind wearing display equipment, data transmission method and system Download PDFInfo
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- CN110505518A CN110505518A CN201910718149.6A CN201910718149A CN110505518A CN 110505518 A CN110505518 A CN 110505518A CN 201910718149 A CN201910718149 A CN 201910718149A CN 110505518 A CN110505518 A CN 110505518A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 52
- 230000008054 signal transmission Effects 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 230000003993 interaction Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 10
- 238000004590 computer program Methods 0.000 description 5
- 238000013501 data transformation Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 238000009877 rendering Methods 0.000 description 4
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 description 3
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/20—Input arrangements for video game devices
- A63F13/23—Input arrangements for video game devices for interfacing with the game device, e.g. specific interfaces between game controller and console
- A63F13/235—Input arrangements for video game devices for interfacing with the game device, e.g. specific interfaces between game controller and console using a wireless connection, e.g. infrared or piconet
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/25—Output arrangements for video game devices
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/30—Interconnection arrangements between game servers and game devices; Interconnection arrangements between game devices; Interconnection arrangements between game servers
- A63F13/32—Interconnection arrangements between game servers and game devices; Interconnection arrangements between game devices; Interconnection arrangements between game servers using local area network [LAN] connections
- A63F13/327—Interconnection arrangements between game servers and game devices; Interconnection arrangements between game devices; Interconnection arrangements between game servers using local area network [LAN] connections using wireless networks, e.g. Wi-Fi® or piconet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4113—PC
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Human Computer Interaction (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
This application discloses one kind to wear display equipment, data transmission method and system, and data transmission method includes: that the first wireless transport module worn in display equipment establishes wireless communication connection with the second wireless transport module for wearing display device exterior；First wireless transport module and the second wireless transport module support the high frequency signal transmission for meeting 802.11ad standard, and the first wireless transport module connects by wireless communication sends the second wireless transport module for the pose data for wearing display equipment；First wireless transport module connects by wireless communication receives the video frame that the second wireless transport module is sent.The embodiment of the present application establishes 60GHz WiFi connection wearing between PC, realizes data interaction, gets rid of the constraint of cable, wears and does not need external power supply power supply, thus small power consumption, light-weight, facilitates user to move freely in space, improves user experience.
Description
Technical field
This application involves wear display equipment technical field, and in particular to one kind wears display equipment, data transmission method
And system.
Background technique
Currently, according to wear display equipment content sources, can will wear display equipment such as VR (virtual reality,
Virtual Reality) equipment be divided into PC (personal computer, personal computer) end and two kinds of mobile terminal, from game
From the point of view of the quantity of content, the end PC occupies main status.PC VR is mainly worn through HDMI (high-definition media interface, High
Definition Multimedia Interface) line connect with PC, and PC, which generates content and is sent to VR, wears display.User exists
When playing Roomscale (moving freely mode in space) game, it will receive many limitations, for example cannot move at a distance, and
Connecting line may be accidentally stepped in moving process.
Also there is a kind of end PC VR for being equipped with wireless transmission external member, but since the external power supply of one large capacity of needs is worn
Power supply, therefore wear than heavier, wearing is uncomfortable, installation, inconvenient to carry, poor user experience.
Summary of the invention
This application provides one kind to wear display equipment, data transmission method and system, completes head by 60GHz WIFI
Content and data interaction between PC are worn, the constraint of cable is got rid of, does not need external power supply power supply, small power consumption improves use
Family experience.
According to the one aspect of the application, a kind of data transmission method is provided, comprising:
Wear the first wireless transport module in display equipment and second wireless transmission for wearing display device exterior
Module establishes wireless communication connection；First wireless transport module is supported to meet with second wireless transport module
802.11ad the high frequency signal transmission of standard；
First wireless transport module is connected by the wireless communication by the pose data for wearing display equipment
Be sent to second wireless transport module so that second wireless transport module by it is described wear display equipment pose number
According to being sent to the PC machine connecting with second wireless transport module；
First wireless transport module receives second wireless transport module by wireless communication connection and sends
Video frame；The video frame, which is the PC machine, to be generated and sent based on the pose data for wearing display equipment to described the
Two wireless transport modules.
According to further aspect of the application, provides one kind and wear display equipment, comprising: the first wireless transport module；
First wireless transport module and second wireless transport module for wearing display device exterior are established wireless
Communication connection；First wireless transport module and second wireless transport module support the height for meeting 802.11ad standard
The transmission of frequency signal；
First wireless transport module is connected by the wireless communication by the pose data for wearing display equipment
Be sent to second wireless transport module so that second wireless transport module by it is described wear display equipment pose number
According to being sent to the PC machine connecting with second wireless transport module；
First wireless transport module receives second wireless transport module by wireless communication connection and sends
Video frame；
The video frame, which is the PC machine, to be generated and sent based on the pose data for wearing display equipment to described the
Two wireless transport modules.
According to the another aspect of the application, provide a kind of data transmission system, including PC machine, data transmission device with
And display equipment is worn such as further aspect of the application；
The data transmission device includes data-interface and the second wireless transport module；
The data-interface is connect with the PC machine；Second wireless transport module and described wear show in equipment
First wireless transport module establishes wireless communication connection；First wireless transport module and second wireless transport module are equal
Support the high frequency signal transmission for meeting 802.11ad standard.
Using the data transmission scheme of the embodiment of the present application, wear between PC by meeting the wireless of 802.11ad standard
Transmission module realizes communication, first is that the constraint of cable in wired data transfer is got rid of, second is that not needing external power supply power supply, function
Consume it is small, third is that, transmission rate is high, ensure that biggish data bandwidth and lower data transmission delay, improves user experience.
Detailed description of the invention
Fig. 1 is the flow diagram of the data transmission method of the application one embodiment；
Fig. 2 is the data transmission stream journey figure of the application one embodiment；
Fig. 3 is the data transmission stream journey figure of another embodiment of the application；
Fig. 4 is the block diagram for wearing display equipment of the application one embodiment；
Fig. 5 is the block diagram of the data transmission system of the application one embodiment.
Specific embodiment
In order to make the above objects, features, and advantages of the present application more apparent, with reference to the accompanying drawing and it is specific real
Applying mode, the present application will be further described in detail.Obviously, described embodiment is some embodiments of the present application, without
It is whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall in the protection scope of this application.
It is arbitrarily moved for wire transmission inconvenience user between PC VR in the prior art, and is wirelessly transferred and needs volume
External power is to wear power supply, leads to heavier-weight, not the problems such as Portable belt, the embodiment of the present application proposes a kind of transmission side data
Case so that PC machine worn with VR between communicated based on 802.11ad wireless LAN communication standard, to both get rid of line
The constraint of cable in turn ensures that transmission bandwidth is conducive to lower delay, and will not additionally increase and wear weight, improves user's body
It tests.
For ease of understanding, first 802.11ad wireless communication standard is illustrated here.Wi-Fi is that a wireless network is logical
The brand of letter technology, is held by Wi-Fi Alliance.Institute of Electrical and Electric Engineers IEEE802.11ad (i.e. 60GHz Wi-
Fi) be Wi-Fi Alliance approval official standard.There is significant difference with pervious Wi-Fi version.It is used to realize household internal
The transmission of WirelessHD audio-video signal brings more complete HD video solution for family multi-media application.
802.11ad standard has abandoned crowded 2.4GHz and 5GHz frequency range, but uses the 60GHz frequency spectrum of high frequency carrier, due to
60GHz frequency spectrum has the frequency of big section available in most countries, therefore 802.11ad can be in MIMO (multiple-input, multiple-output skill
Art, Multiple-Input Multiple-Output) technology support under realize multi channel simultaneous transmission, and each channel
Transmission bandwidth all will be more than 1Gbps.
Fig. 1 is the flow diagram of the data transmission method of the application one embodiment, referring to Fig. 1, the number of the present embodiment
According to transmission method, including the following steps:
Step S101, the first wireless transport module worn in display equipment wear the second of display device exterior with described
Wireless transport module establishes wireless communication connection；First wireless transport module is supported with second wireless transport module
Meet the high frequency signal transmission of 802.11ad standard.
Described wear is shown equipment by the wireless communication connection by step S102, first wireless transport module
Pose data are sent to second wireless transport module, so that second wireless transport module wears display equipment for described
Pose data be sent to the PC machine connecting with second wireless transport module.
Step S103, first wireless transport module receive second wireless transmission by wireless communication connection
The video frame that module is sent；The video frame is that the PC machine is generated and sent based on the pose data for wearing display equipment
To second wireless transport module.
As shown in Figure 1 it is found that the data transmission method of the present embodiment, wears and (wear display equipment) and lead between PC machine
Data transmission is realized in the cooperation for crossing the first wireless transport module and the second wireless transport module, and the first wireless transport module and the
Two wireless transport modules support the high frequency signal transmission for meeting 802.11ad standard, are established between PC wearing as a result,
The Wi-Fi bi-directional transfer path of 60GHz, thus, it ensure that biggish data bandwidth and lower data transmission delay, improve
User experience.
It should be noted that provided in this embodiment is a kind of wireless crossfire transmission plan, so-called wireless crossfire is: wearing
Itself pose data such as 6DOF (Degree Of Freedom, freedom degree) data are passed through to the Wi-Fi transmission channel of 60GHz
It is sent to PC machine, PC is sent to according to the Wi-Fi transmission channel for passing through 60GHz after 6DOF data render and wears display.Pass through
The wireless crossfire transmission of high bandwidth, low delay improves the competitiveness and user experience of PC VR.Note: bandwidth is transmission each second
Maximum number of byte.
It is provided with the first wireless transport module it has been observed that wearing in display equipment, wearing display device exterior has the second nothing
Line transmission module, the first wireless transport module and the second wireless transport module establish wireless communication connection.
According to the function of PC, the difference of data-interface, there are two types of the specific embodiments of the second wireless transport module, a kind of
It is that the end PC carries out compressed encoding to the audio, video data of transmission, the data after compressed encoding is sent to the second wireless transmission mould
Data after compressed encoding are sent to the first wireless transport module by block, the second wireless transport module.At this moment the second wireless transmission
Module only has data-transformation facility.Another kind is that audio, video data is sent directly to the second wireless transport module by the end PC, by
Second wireless transport module retransmits after carrying out compressed encoding to audio, video data to the first wireless transport module.At this moment the second nothing
Line transmission module has data encoding and data-transformation facility.
Based on the difference of the second wireless transport module, aforementioned the first wireless transport module for wearing display equipment, aforementioned the
One wireless transport module sends described second for the pose data for wearing display equipment by the wireless communication connection
Wireless transport module so that second wireless transport module by it is described wear display equipment pose data be sent to it is described
The PC machine of second wireless transport module connection includes: that first wireless transport module will be described by wireless communication connection
The pose data for wearing display equipment are sent to second wireless transport module, so that second wireless transport module will
The pose data for wearing display equipment are sent to second wireless transport module through the first data-interface or the second number
The PC machine connected according to interface；Wherein, first data-interface is high-definition media interface HDMI interface；Second data connect
Mouth is in 3.0 interface of general-purpose serial bus USB, high speed serialization computer expansion bus standard PCIe interface and Ethernet interface
It is any.
First wireless transport module receives second wireless transport module by wireless communication connection and sends
Video frame to include: first wireless transport module pass through wireless communication connection reception second wireless transport module
The compressed video frame of the coding of transmission；Wherein, the compressed video frame of coding is the second wireless transport module warp
First data-interface carries out the video frame by second wireless transport module after receiving the video frame that the PC machine is sent
It is obtained after encoding compression processing, or, the compressed video frame of coding is second wireless transport module through the second number
The video frame send after coding compression according to the PC machine of interface；First data-interface is that high definition is more
Media interface HDMI interface；Second data-interface is 3.0 interface of general-purpose serial bus USB, the extension of high speed serialization computer
Any one of bus standard PCIe interface and Ethernet interface.
That is, the presence or absence of second wireless transport module encoding function, so that in actual data transfer, the first wireless transport module
There is subtle difference with the process that the second wireless transport module sends and receivees data, it is wireless to second below in conjunction with attached drawing
It two kinds of embodiments of transmission module and is illustrated respectively based on the data transmission stream journey under different real-time modes.
Referring to fig. 2, data transmission system includes PC machine, communicates box and wears display equipment, includes audio-video in PC machine
Then coding transmission module is sent to for encoding to the audio, video data generated in PC machine by the second data-interface
Communicate box.
As shown in Fig. 2, the second data-interface here includes general-purpose serial bus USB (Universal Serial Bus)
Interface, high speed serialization computer expansion bus standard PCIe (Peripheral Component Interconnect
Express) any one of interface and Ethernet (Ethernet) interface.
Correspondingly, also have the second data-interface in communication box, for example, the second data-interface is USB3.0 interface, then,
The USB3.0 interface of PC machine establishes connection with the USB3.0 interface for communicating box, receives PC machine by the USB connection communication box
Audio, video data after the coding that interior audio, video data coding transmission module is sent.
Then, compressed audio, video data is sent to head by the 802.11ad transmission module (server) communicated in box
The 802.11ad transmission module (client) in display equipment is worn, the wireless transmission of audio, video data is so far completed.
It should be noted that communicating the 802.11ad transmission module (server) in box in Fig. 2 is the second wireless biography
Defeated module, the 802.11ad transmission module (client) worn in display equipment is the first wireless transport module.Two transmission
Module is substantially identical, that is, is all the Wi-Fi chip of 60GHz, the functional perspective transmitted here from data carries out the two
It distinguishes, labeled as the server and client side of wireless data transmission.
As shown in Figure 2 it is found that the second wireless transport module only has data-transformation facility, without to audio, video data
The function of being encoded, what can be designed the second wireless transport module in this way is simpler, and cost is also lower.In practical application,
The product form of second wireless transport module is such as wireless network card, is connected by the wireless network card and the data-interface of PC machine,
And with wear display equipment in the first wireless transport module establish 60GHz Wi-Fi transmission connect.
Fig. 3 is the data transmission stream journey figure of another embodiment of the application, and referring to Fig. 3, data transmission system includes PC machine,
It communicates box and wears display equipment, include transmission module in PC machine, for being passed to the audio, video data generated in PC machine
It is defeated, then communication box is sent to by the first data-interface.
As shown in figure 3, the first data-interface here is high-definition media interface HDMI (High Definition
Multimedia Interface) interface.The audio/video coding for communicating box receives uncoded sound by the first data-interface
Video data carries out coded transmission to the 802.11ad transmission module (server) for communicating box, by communication box
Compressed audio, video data is sent to the 802.11ad worn in display equipment and passed by 802.11ad transmission module (server)
Defeated module (client) so far completes the wireless transmission of audio, video data.
In Fig. 3,802.11ad transmission module (server) is the second wireless transport module, 802.11ad transmission module
It (client) is the first wireless transport module.Established between first wireless transport module and the second wireless transport module WiFi without
Line communication connection, the high-frequency signal for transmitting 60GHz are completed to wear the content and data interaction with PC, realize moveable low delay
VR Roomscale experience.
As shown in Figure 3 it is found that the second wireless transport module have data-transformation facility and data encoding function, such second
The function of wireless transport module is richer, and in practical application, the data encoding function of the second wireless transport module is by FPGA
(Field Programmable Gate Array, i.e. field programmable gate array) is realized, that is to say, that is wrapped in communication box
Include FPGA.The data-transformation facility of second wireless transport module is realized that 802.11ad chip maximum is supported by 802.11ad chip
The data of 4.6Gbps are transmitted, and ensure that big data bandwidth and low data transmission delay.802.11ad chip and wearing display
The 802.11ad chip of the first wireless transport module in equipment establishes the Wi-Fi transmission connection of 60GHz.
It should be noted that Fig. 2 and Fig. 3 are to be to display equipment transmission audio-video one-way data transfer is worn with PC machine
The explanation that example carries out in practical application, is worn and also sends the pose data worn to PC machine by data transmission channel, for PC
Machine handles and generates corresponding audio, video data and feed back to and wears.
6DOF data are transferred to by PC by 60GHz Wi-Fi that is, wearing display equipment, the end PC renders image
(such as game picture), and after encoding compression, communication box is sent to by USB3.0/Ethernet/PCIe, communicates box
802.11ad chip sent images to by 60GHz Wi-Fi and wear display equipment, shown after wearing display equipment decoding
Image.For passing through (situation shown in Fig. 3) the case where HDMI connection, coded image data work done during compression between communication box and PC
It can be put into the FPGA of communication box and carry out, other processes are identical as process shown in Fig. 2.
The data transmission based on support 802.11ad standard of the present embodiment also helps reduction delay, promotes user's body
It tests.In general, the generation of delay and 6DOF data upload the stage, transmission phase is encoded, decoding display stage three phases are related.
It can be obtained to once wearing with the delay Analysis in the complete data transmission procedure of PC machine:
(1) IMU is delayed, and is primarily referred to as handle or wears to be moved to IMU (Inertial Measurement Unit, Inertial
Measurement Unit) sensor perceives to the end/hand movement, and it include filtering delay-time inside IMU, the delay is in 4.5ms or so.
(2) 6DOF calculates the time, wears Digital Signal Processing after receiving IMU transmission data and calculates, calculates the time in 30us
Left and right.
(3) 6DOF data uplink time, using 60GHz frequency range under 1Gbps bandwidth, entire transmission time is in 1ms or so.
(4) image and PC/FPGA coding are rendered, calculates the time in 6ms or so.
(5) data transfer bandwidth exists in 1Gbps or so, coded video bit stream to 100Mbps or so, wireless transmission time
5ms or so.
(6) decoding time is worn in 8ms or so.
(7) in wearing, asynchronous time distorts the (refreshing of ATW (Asynchronous Timewarp abbreviation ATW) waiting time
Frequency 90Hz) maximum 11.1ms.
(8) in wearing, asynchronous time distorts ATW and shows time (refreshing frequency 90Hz) maximum 11.1ms.
The above temporal summation can obtain whole system delay between 40-50ms.
Thus, on the one hand, by using the high frequency signal transmission data for meeting 802.11ad standard, reduce and wear and PC
Transmission delay (for example being only 6 milliseconds) between machine, on the other hand, high bandwidth also ensures the data transmission delay of the present embodiment
It is relatively stable, facilitate carry out image procossing.
Image procossing is connected in first wireless transport module by the wireless communication for example, in one embodiment
After receiving the video frame that second wireless transport module is sent, the method also includes: acquisition current time wears display
The pose data of equipment；The pose data that display equipment is worn according to the current time, to second wireless transport module
The video frame of transmission is converted, and is obtained to wear with the current time and is shown the corresponding target video of the pose data of equipment
Frame；The target video frame is output to the screen for wearing display equipment to show.
That is, wearing in T moment delivery header hand 6DOF data (includes head 6DOF data and hand 6DOF number
According to) PC machine is given, it is sent to and wears after PC rendering, wear decoding display, it has been observed that entire transmission process delay is in 40-50ms.
So at the T+Delay moment, the rendering image for receiving the T moment is worn, and in order to which delay is effectively reduced, it wears according to acquisition
Head and the newest posture information of hand (i.e. current time wears the pose data for showing equipment), to the rendering image received
It is converted, for example using asynchronous time distortion one frame of ATW technological prediction or two field pictures (i.e. target video frame), target is regarded
Frequency frame, which is output to wear, shows that the screen of equipment is shown, such system is always delayed in 20-30ms, is less than 40-50ms, reaches
The purpose of low delay output.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Object be interchangeable under appropriate circumstances, so that embodiments herein can be implemented with the sequence in addition to being described herein as.
From the foregoing, it will be observed that the wireless stream data transmission method of the present embodiment, by high bandwidth, the wireless data of low delay is passed
The 6DOF data worn are sent to PC application, are returned to after PC application rendering by wireless data transmission connection by defeated connection
Display is worn, the constraint of cable is got rid of, user can move freely, and not needing additional power supply is to wear power supply, is mitigated
Weight is worn, is convenient for carrying, experience when user plays Roomscale game is improved, improves the market for wearing display equipment
Competitiveness.
Present invention also provides one kind to wear display equipment, and Fig. 4 is that wearing for the application one embodiment shows equipment
Block diagram, referring to fig. 4, the display equipment 400 of wearing of the present embodiment includes the first wireless transport module 401；
First wireless transport module 401 and second wireless transport module worn outside display equipment 400 are (not
Show) establish wireless communication connection；First wireless transport module 401 is supported to meet with second wireless transport module
802.11ad the high frequency signal transmission of standard；
First wireless transport module 401 is connected by the wireless communication by the pose number for wearing display equipment
According to being sent to second wireless transport module, so that second wireless transport module is by the pose for wearing display equipment
Data are sent to the PC machine connecting with second wireless transport module；
First wireless transport module 401 receives the second wireless transport module hair by wireless communication connection
The video frame sent；
The video frame, which is the PC machine, to be generated and sent based on the pose data for wearing display equipment to described the
Two wireless transport modules.
In one embodiment of the application, first wireless transport module 401 will by wireless communication connection
The pose data for wearing display equipment are sent to second wireless transport module, so that the second wireless transmission mould
The pose data for wearing display equipment are sent to second wireless transport module through the first data-interface or the by block
The PC machine of two data-interfaces connection；Wherein, first data-interface is high-definition media interface HDMI interface；Second number
It is general-purpose serial bus USB interface, high speed serialization computer expansion bus standard PCIe interface and Ethernet interface according to interface
Any one of.
In one embodiment of the application, first wireless transport module 401 is connect by the wireless communication
Receive the compressed video frame of coding that second wireless transport module is sent；Wherein, the compressed video frame of coding is
Second wireless transport module is after the first data-interface receives the video frame that the PC machine is sent by the described second wireless biography
Defeated module obtains after carrying out encoding compression processing to the video frame, or, the compressed video frame of coding is described the
What two wireless transport modules were sent after the received PC machine of the second data-interface carries out coding compression to the video frame；Institute
Stating the first data-interface is high-definition media interface HDMI interface；Second data-interface be general-purpose serial bus USB interface,
Any one of high speed serialization computer expansion bus standard PCIe interface and Ethernet interface.
The embodiment of the present application also provides a kind of data transmission system, Fig. 5 is the data transmission of the application one embodiment
The block diagram of system, referring to Fig. 5, data transmission system 500 includes PC machine 501, data transmission device 502 and wears as the aforementioned
Show equipment 400；
The data transmission device 502 includes data-interface and the second wireless transport module；
The data-interface is connect with the PC machine 501；
Second wireless transport module and first wireless transport module worn in display equipment 400 are established wireless
Communication connection；First wireless transport module and second wireless transport module support the height for meeting 802.11ad standard
The transmission of frequency signal.
In one embodiment of the application, the data-interface includes the first data-interface and the second data-interface, institute
Stating the first data-interface is high-definition media interface HDMI interface；Second data-interface be general-purpose serial bus USB interface,
Any one of high speed serialization computer expansion bus standard PCIe interface and Ethernet interface.
In one embodiment of the application, the data transmission device 502 further includes frame processing module, the frame processing
Module is used to carry out encoding compression processing to through the received video frame of first data-interface, obtains encoding compressed video
Frame.
It should be noted that a way of realization of data transmission device can be wireless network card, wherein integrated second nothing
Line transmission module, the first data-interface and the second data-interface, frame processing module etc..Data transmission device and preceding method are implemented
The communication cartridge subfunction of Fig. 2 and Fig. 3 is identical in example, therefore, the explanation of more function details in relation to data transmission device,
It may refer to the explanation in preceding method embodiment, which is not described herein again.
In conclusion the data transmission scheme of the embodiment of the present application, realizes to wear and meet 802.11ad mark between PC
Quasi- wireless high-frequency signal transmission, gets rid of the constraint of cable, does not need external power supply power supply, and small power consumption is light-weight.Transmission speed
Rate is high, ensure that biggish data bandwidth and lower data transmission delay, improves user experience.
The display equipment of wearing of another embodiment of the application includes memory and processor, is led between memory and processor
Internal bus communication connection is crossed, memory is stored with the program instruction that can be executed by processor, and program instruction is held by processor
It can be realized above-mentioned data transmission method when row.In addition, the logical order in above-mentioned memory can pass through software function
The form of unit is realized and when sold or used as an independent product, can store in a computer-readable storage medium
In.It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the present invention
Form.It is deposited moreover, the present invention can be used to can be used in the computer that one or more wherein includes computer usable program code
The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The dress for the function of being specified in one box or multiple boxes of one process or multiple processes and/or block diagrams of present flow chart
It sets.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
In specification of the invention, numerous specific details are set forth.Although it is understood that the embodiment of the present invention can
To practice without these specific details.In some instances, well known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this specification.Similarly, it should be understood that disclose in order to simplify the present invention and helps to understand respectively
One or more of a inventive aspect, in the above description of the exemplary embodiment of the present invention, each spy of the invention
Sign is grouped together into a single embodiment, figure, or description thereof sometimes.However, should not be by the method solution of the disclosure
It is interpreted into and reflects an intention that i.e. the claimed invention requires more than feature expressly recited in each claim
More features.More precisely, just as the following claims reflect, inventive aspect is single less than disclosed above
All features of embodiment.Therefore, it then follows thus claims of specific embodiment are expressly incorporated in the specific embodiment party
Formula, wherein each, the claims themselves are regarded as separate embodiments of the invention.
The above description is merely a specific embodiment, under above-mentioned introduction of the invention, those skilled in the art
Other improvement or deformation can be carried out on the basis of the above embodiments.It will be understood by those skilled in the art that above-mentioned tool
Body description only preferably explains that the purpose of the present invention, protection scope of the present invention are subject to the protection scope in claims.
Claims (10)
1. a kind of data transmission method characterized by comprising
Wear the first wireless transport module and second wireless transport module for wearing display device exterior in display equipment
Establish wireless communication connection；First wireless transport module and second wireless transport module are supported to meet 802.11ad
The high frequency signal transmission of standard；
First wireless transport module is sent the pose data for wearing display equipment by the wireless communication connection
To second wireless transport module, so that second wireless transport module sends out the pose data for wearing display equipment
It send to the PC machine being connect with second wireless transport module；
First wireless transport module receives the view that second wireless transport module is sent by the wireless communication connection
Frequency frame；The video frame is that the PC machine is generated and sent based on the pose data for wearing display equipment to second nothing
Line transmission module.
2. the method as described in claim 1, which is characterized in that first wireless transport module is connected by the wireless communication
It connects and sends second wireless transport module for the pose data for wearing display equipment, so that second wireless transmission
The pose data for wearing display equipment are sent to the PC machine connecting with second wireless transport module by module
First wireless transport module is sent the pose data for wearing display equipment by the wireless communication connection
To arrive second wireless transport module so that second wireless transport module by it is described wear display equipment pose data
It is sent to the PC machine connecting with second wireless transport module through the first data-interface or the second data-interface；Wherein, described
First data-interface is high-definition media interface HDMI interface；Second data-interface is general-purpose serial bus USB interface, height
Any one of fast serial computer expansion bus standard PCIe interface and Ethernet interface.
3. the method as described in claim 1, which is characterized in that first wireless transport module is connected by the wireless communication
Receiving the video frame that second wireless transport module is sent includes:
First wireless transport module receives the volume that second wireless transport module is sent by the wireless communication connection
The compressed video frame of code；
Wherein, the compressed video frame of coding is second wireless transport module through the first data-interface reception PC
It is obtained after carrying out encoding compression processing to the video frame by second wireless transport module after the video frame that machine is sent,
Or, the compressed video frame of coding is second wireless transport module through the received PC machine pair of the second data-interface
What the video frame send after coding compression；First data-interface is high-definition media interface HDMI interface；It is described
Second data-interface is general-purpose serial bus USB interface, high speed serialization computer expansion bus standard PCIe interface and ether
Any one of network interface.
4. method as claimed in any one of claims 1-3, which is characterized in that pass through institute in first wireless transport module
After stating the video frame that wireless communication connection receives the second wireless transport module transmission, the method also includes:
Acquisition current time wears the pose data of display equipment；
The pose data that display equipment is worn according to the current time, the video frame that second wireless transport module is sent
It is converted, obtains to wear with the current time and show the corresponding target video frame of the pose data of equipment；#
The target video frame is output to the screen for wearing display equipment to show.
5. one kind wears display equipment characterized by comprising the first wireless transport module；
First wireless transport module and second wireless transport module for wearing display device exterior are established and are wirelessly communicated
Connection；First wireless transport module and second wireless transport module support the high frequency for meeting 802.11ad standard to believe
Number transmission；
First wireless transport module is sent the pose data for wearing display equipment by the wireless communication connection
To second wireless transport module, so that second wireless transport module sends out the pose data for wearing display equipment
It send to the PC machine being connect with second wireless transport module；
First wireless transport module receives the view that second wireless transport module is sent by the wireless communication connection
Frequency frame；
The video frame is that the PC machine is generated and sent based on the pose data for wearing display equipment to second nothing
Line transmission module.
6. wearing display equipment as claimed in claim 5, which is characterized in that first wireless transport module passes through the nothing
The pose data for wearing display equipment are sent second wireless transport module by line communication connection, so that described the
The pose data for wearing display equipment are sent to second wireless transport module through first by two wireless transport modules
Data-interface or the PC machine of the second data-interface connection；Wherein, first data-interface is that high-definition media interface HDMI connects
Mouthful；Second data-interface be general-purpose serial bus USB interface, high speed serialization computer expansion bus standard PCIe interface with
And any one of Ethernet interface.
7. wearing display equipment as claimed in claim 5, which is characterized in that
First wireless transport module receives the volume that second wireless transport module is sent by the wireless communication connection
The compressed video frame of code；
Wherein, the compressed video frame of coding is second wireless transport module through the first data-interface reception PC
What video frame that machine is sent and carrying out obtained after encoding compression processing, or, the compressed video frame of coding is described second
What wireless transport module was sent after the received PC machine of the second data-interface carries out coding compression to the video frame；It is described
First data-interface is high-definition media interface HDMI interface；Second data-interface is general-purpose serial bus USB interface, height
Any one of fast serial computer expansion bus standard PCIe interface and Ethernet interface.
8. a kind of data transmission system, which is characterized in that including PC machine, data transmission device and as appointed in claim 5-7
Display equipment is worn described in one；
The data transmission device includes data-interface and the second wireless transport module；
The data-interface is connect with the PC machine；
Second wireless transport module and first wireless transport module worn in display equipment are established wireless communication and are connected
It connects；First wireless transport module and second wireless transport module support the high-frequency signal for meeting 802.11ad standard
Transmission.
9. data transmission system as claimed in claim 8, which is characterized in that the data-interface include the first data-interface and
Second data-interface,
First data-interface is high-definition media interface HDMI interface；
Second data-interface is general-purpose serial bus USB interface, high speed serialization computer expansion bus standard PCIe interface
And any one of Ethernet interface.
10. data transmission system as claimed in claim 9, which is characterized in that the data transmission device further includes frame processing
Module,
The frame processing module is used to carry out encoding compression processing to through the received video frame of first data-interface, is compiled
The compressed video frame of code.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910718149.6A CN110505518A (en) | 2019-08-05 | 2019-08-05 | One kind wearing display equipment, data transmission method and system |
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| CN201910718149.6A CN110505518A (en) | 2019-08-05 | 2019-08-05 | One kind wearing display equipment, data transmission method and system |
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Application publication date: 20191126 |