CN106656299A - Method and device for data transmission between virtual reality device and computer mainframe - Google Patents
Method and device for data transmission between virtual reality device and computer mainframe Download PDFInfo
- Publication number
- CN106656299A CN106656299A CN201611136214.7A CN201611136214A CN106656299A CN 106656299 A CN106656299 A CN 106656299A CN 201611136214 A CN201611136214 A CN 201611136214A CN 106656299 A CN106656299 A CN 106656299A
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- data
- virtual reality
- display device
- data transmission
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/36—Repeater circuits
Abstract
The invention relates to a method and a device for data transmission between a virtual reality device and a computer mainframe. The method is characterized in that a virtual reality head-mounted display device and an interactive handle carry out data transmission with the computer mainframe through a relay, the relay has wireless receiving and transmitting functions, through two-way data return, corresponding data processing computation and prediction processes and a data packet collision detection and judgment algorithm, a problem that a wireless channel at a handle end is disturbed to cause packet loss of the data packet can be effectively solved, the stability of the whole data transmission system is guaranteed and the user experience of the virtual reality device is improved.
Description
Technical field
The present invention relates to the virtual reality device communication technology, especially a kind of virtual reality device are logical with main frame
Letter interconnection technique.
Background technology
Virtual reality (virtual reality, VR) technology is three-dimensional virtual using computer simulation generation one
The world, there is provided to user with regard to the simulation of the sense organs such as vision, make user seemingly on the spot in person, when user carries out position movement,
Personal computer (Personal Computer, PC) end can immediately carry out the computing of complexity, and accurate three-dimensional virtual world is regarded
Keep pouring in back display device and produce telepresenc.
Virtual reality device can be divided into two big class：One class is head-mounted display apparatus, for showing computer simulation
Virtual reality, generally with eyeshade or the form of the helmet, head mounted display can produce one with the volume less than regular display
The picture of individual wide viewing angle, general visual angle all can be more than 90 degree；It is another kind of for human-computer interaction device, for by the action of user and behaviour
Main frame is fed back to, generally with the form of operation handle.
PC ends virtual reality implementation generally includes 2 laser positioning beacons, 2 manipulators in currently available technology
Handle, 1 VR wears display device, wherein wearing display device by a HDMI (High Definition Multimedia
Interface, HDMI) line and USB (Universal Serial Bus, a USB) line
It is directly connected to PC main frames.
Wearing display device is reported to the information of PC end main frames to include but is not limited to：The head of IMU Inertial Measurement Units collection
Wear the auxiliary informations such as display device attitude information, data, the interpupillary distance information of light sensor (Light Sensor) collection, handle
The handle attitude information at end and the data of light sensor collection.Handle end is in the way of radio communication and wears display device and builds
Vertical communication connection, by the data is activation of handle itself to wearing on display device, then is forwarded by display device is worn by USB line
To PC ends, and it is wirelessly to connect that this data transfer mode has in actual applications a serious problems, i.e. handle
Display device is worn, if there is interference the situations such as the packet packet loss of handle may be caused to occur in application.
To solve the above problems, present invention design has increased the path of another handle and the transmission of PC end datas newly, is wearing
A wireless repeater module is increased in display device and PC end main frame data transfer paths, data packetloss is effectively solved
Problem, it is ensured that the stability of whole data transmission system, improves the Consumer's Experience of virtual reality device.
The content of the invention
The present invention seeks to：The data transmission method and device of a kind of virtual reality device and main frame are provided, are had
Effect solves the problems, such as data packetloss, it is ensured that the stability of whole data transmission system.
The technical scheme is that：The data transmission device includes two handles and two laser positioning beacons,
One is worn display device, a wireless repeater, a PC main frame, wherein wearing display device by a USB line and
Root HDMI wire is connected with wireless repeater, and wireless repeater is connected again by a USB line and a HDMI wire with PC main frames.Two
Individual handle by wireless channel simultaneously with repeater and wear display device and be connected.
The data transmission system workflow is：
Wear display device to be connected on main frame by repeater (USB HUB), its data for reporting is included but is not limited to：
Display device IMU packets are worn, display device light sensor packet, handle attitude information and light sensor number is worn
According to bag；
In handle attitude information and light sensor transmission of data packets, repeater serves wireless data forwarding
Function, because handle increased the passage that a data is reported, compared with the scheme of single radio channel in prior art, leads to
Crossing data redundancy method can significantly reduce handle to the data packetloss rate of PC end main frames.
Repeater (USB HUB) itself is connected in PC end main frames as a new USB device, its packet for reporting
Include but be not limited to：Handle attitude information and light sensor (LightSensor) packet.Initial data reach behind PC ends through
A series of configuration space location resolution calculation process, finally gives the configuration space position letter for wearing display device and handle
Breath.
Described configuration space location resolution calculation process is：
Driven by USB and obtain original IMU and LightSensor data, then data are filled into into corresponding annular and delayed
Rush in the middle of area (Ringbuffer), described buffer circle (Ringbuffer) is to drive the medium that data are transmitted with algorithm.
Data packet collisions detection is carried out afterwards, and when judging that original I MU is effective with Light Sensor data, location algorithm obtains original
Data, calculate the attitude and position for obtaining corresponding object；Prediction algorithm is by calculating the mutually reply in first certain period of time
The attitude of elephant and position, the attitude of corresponding object and position in the following certain period of time of prediction.
The data transmission system packet transmission collision judgment mode：
In technical solution of the present invention, because handle can wirelessly simultaneously to wearing display device and repeater sends
Attitude and positional information, it is therefore desirable to which data packet collisions detecting step is set in flow chart of data processing, i.e., under normal circumstances,
The initial data of handle both can wear display device and reach PC ends by VR, and further through repeater PC ends are reached, or in certain feelings
Under condition, only only have and reach PC ends all the way, if two paths of data is all reported to PC ends, clash, enter positioning in data and calculate
Before method, the packet for filtering out redundancy is needed, it is ensured that only a circuit-switched data enters algorithm；
Optionally, in the case where there are data packet collisions, available algorithm filters out the data for wearing display device foldback
Bag；
Optionally, in the case where there are data packet collisions, available algorithm filters out the packet of repeater foldback.
Driven by USB and obtain original IMU and LightSensor packets, also included in packet and obtain when secondary
The scan axis and scanning and counting value of the laser positioning beacon of LightSensor data, by judging a certain scan axis Current Scan
Count and whether count more than before this scan axis, it is determined that whether the packet of passback clashes.
The present invention innovative point be：
Increase repeater in virtual reality wears data transfer path of the display device with main frame, and in being
Increase wireless forwarding function after device, by two-way data back, effectively solving handle end wireless channel is interfered the number for causing
According to bag packet loss problem.
Description of the drawings
Fig. 1 is a kind of virtual reality location data Transmission system schematic diagram of the embodiment of the present invention；
Fig. 2 improves virtual reality location data Transmission system schematic diagram for a kind of of the embodiment of the present invention；
Fig. 3 is location data process chart in the embodiment of the present invention；
Fig. 4 is data packet collisions overhaul flow chart in the embodiment of the present invention；
Specific embodiment
As described in the background art, with the communication means of main frame there is restrictive condition in existing virtual reality device
It is many, when interaction handle attitude and location information data are returned, it may appear that the problems such as packet packet loss.
Technical solution of the present invention in virtual reality by wearing in data transfer path of the display device with main frame
Increase repeater, and increase wireless forwarding function for repeater, by two-way data back, effectively solving handle end wireless communication
Road is interfered the packet packet loss problem for causing, so that the Consumer's Experience of virtual reality device is further lifted.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Fig. 1 is a kind of virtual reality location data Transmission system schematic diagram of the embodiment of the present invention；
The data transmission system includes two handles (101) and two laser positioning beacons (104 and 105), one
Wear display device (102), a PC main frame (103), wherein wear display device by a USB line and HDMI wire with
PC main frames are connected.Two handles (101) send attitude and location information data by wireless channel to display device is worn, and wear
Display device wears attitude and the positional information that display device itself is uploaded with the handle for receiving by USB line to the transmission of PC main frames
Data, the video sent by HDMI wire Receiving Host and voice data.
Fig. 2 improves virtual reality location data Transmission system schematic diagram for a kind of of the embodiment of the present invention；
The data transmission system includes two handles (201) and two laser positioning beacons (204 and 205), one
Display device (202), a wireless repeater (206), a PC main frame (203) are worn, wherein wearing display device by one
Root USB line and a HDMI wire are connected with wireless repeater, and wireless repeater is again by a USB line and a HDMI wire and PC
Main frame is connected.Two handles by wireless channel simultaneously with repeater and wear display device and be connected, wear display device and pass through
USB line wears attitude and the positional information number that display device itself is uploaded with the handle for receiving through repeater to the transmission of PC main frames
According to, the video sent through repeater Receiving Host by HDMI wire and voice data.
The repeater (USB HUB) itself is connected in PC end main frames as a new USB device, its number for reporting
According to including but not limited to：Handle attitude information and light sensor (LightSensor) packet.Initial data is reached behind PC ends
Through a series of configuration space location resolution calculation process, the configuration space position for wearing display device and handle is finally given
Information.
Fig. 3 is location data process chart in the embodiment of the present invention；
Described configuration space location resolution calculation process is：
Step 301：IMU Inertial Measurement Units and light sensor (LightSensor) obtain original attitude and position
Information data；
Step 302：USB drives and obtains original IMU and LightSensor location information data, then data are filled into
In the middle of corresponding buffer circle (Ringbuffer), described buffer circle (Ringbuffer) is to drive and algorithm transmission
The medium of data.
Step 303：Data packet collisions detection is carried out, that is, judges the location information data for wearing display device and handle passback
Whether it is same group of location data；
Optionally, in the case where there are data packet collisions, available algorithm filters out the data for wearing display device foldback
Bag；
Optionally, in the case where there are data packet collisions, available algorithm filters out the packet of repeater foldback.
When judging that original I MU is effective with Light Sensor data, into step 304；
Step 304：Location algorithm obtains initial data described in step 301, calculates the attitude and position for obtaining corresponding object
Information；
Step 305：Attitude and position of the prediction algorithm by the corresponding object in the first certain period of time of calculating, prediction
The attitude of corresponding object and position in following certain period of time.
Step 306：Determine the configuration space positional information of corresponding object, instruct adjustment video, the output of audio frequency.
Fig. 4 is data packet collisions overhaul flow chart in the embodiment of the present invention；
The data transmission system packet transmission collision judgment mode：
In technical solution of the present invention, because handle can wirelessly simultaneously to wearing display device and repeater sends
Attitude and positional information, it is therefore desirable to which data packet collisions detecting step is set in flow chart of data processing, i.e., under normal circumstances,
The initial data of handle both can wear display device and reach PC ends by VR, and further through repeater PC ends are reached, or in certain feelings
Under condition, only only have and reach PC ends all the way, if two paths of data is all reported to PC ends, clash, enter positioning in data and calculate
Before method, the packet for filtering out redundancy is needed, only ensure that a circuit-switched data enters algorithm；
Optionally, in the case where there are data packet collisions, available algorithm filters out the data for wearing display device foldback
Bag；
Optionally, in the case where there are data packet collisions, available algorithm filters out the packet of repeater foldback.
As shown in Figure 4, step 401：Driven by USB and obtain original IMU and LightSensor packets, data
Also comprising the scan axis and scanning and counting value for obtaining the laser positioning beacon when secondary LightSensor data in bag；
Step 402：Judge that a certain scan axis Current Scan is counted whether to count more than before this scan axis, if currently swept
Retouch counting to count more than before this scan axis, then into step 403；If Current Scan is counted to be not more than before this scan axis and counted
Number, then into step 404；
Step 403：Packet is judged as non conflicting packet, and then update attitude with positional information record；
Step 404：Whether the scan counter for judging Current Scan axle turns round, and in the event of turning round, then enters step
Rapid 403, if turned round, into step 405；
Step 405：Packet is judged as colliding data bag, the packet of redundancy is filtered out by preset algorithm；
The embodiment of the invention also discloses a kind of wireless repeater device, the wireless repeater device is comprising for virtual
The radio transmitting device of real world devices data transfer, with wireless receiving and transfer function；Meanwhile, with wire transmission function,
Corresponding data can be transmitted by USB line, the transmission of video, audio frequency is carried out by HDMI wire.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completed with instructing the hardware of correlation by program, the program can be stored in computer-readable recording medium, to store
Medium can include：ROM, RAM, disk or CD etc..
The above, the only specific embodiment of the invention.Protection scope of the present invention is not limited thereto, any to be familiar with
Those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in all should be covered
Within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be defined with claim is
It is accurate.
Claims (7)
1. the data transmission method of a kind of virtual reality device and main frame, it is characterised in that include：
Acquisition virtual reality is driven to wear display device and interact the Inertial Measurement Unit of handle passback by wireless repeater USB
(IMU) with the original attitude of light sensor (LightSensor) and location information data；
Data packet collisions detection is carried out, judgement is worn display device and determined with whether the location information data of handle passback are same group
Position data, and redundant data is filtered according to judgement；
Location algorithm obtains the initial data, calculates the attitude and positional information for obtaining corresponding object, and prediction algorithm is by meter
The attitude of the corresponding object in first certain period of time and position, the attitude of corresponding object in the following certain period of time of prediction
And position；
Determine the configuration space positional information of corresponding object, instruct adjustment video, the output of audio frequency.
2. the data transmission method of a kind of virtual reality device according to claim 1 and main frame, its feature exists
In virtual reality is worn display device and carried out data transmission with main frame by repeater with handle is interacted, the relaying
Utensil has wireless receiving and transfer function.
3. the data transmission method of a kind of virtual reality device according to claim 1 and main frame, its feature exists
In simultaneously itself attitude and positional information are sent to and wear display device by virtual reality interaction handle by wireless transmission method
And wireless repeater.
4. the data transmission method of a kind of virtual reality device according to claim 1 and main frame, its feature exists
In the attitude to wearing display device with interact handle passback carries out data packet collisions judgement with location information data, works as judgement
For data packet collisions when, redundancy can be filtered out with preset algorithm.
5. a kind of data transmission device of virtual reality device and main frame, it is characterised in that the data transmission system bag
Include：
Two handles and two laser positioning beacons, one is worn display device, a wireless repeater, an individual calculus
Machine host, wherein wear display device being connected with wireless repeater by a USB line and a HDMI wire, wireless repeater is again
It is connected with individual calculus machine host by a USB line and a HDMI wire.Two handles by wireless channel simultaneously with relaying
Device is connected with display device is worn.
6. the data transmission device of a kind of virtual reality device according to claim 5 and main frame, its feature exists
In repeater has wireless receiving and transfer function, and wears display device by wire transmission mode connection virtual reality
With personal computer.
7. the data transmission device of a kind of virtual reality device according to claim 5 and main frame, its feature exists
In virtual reality interaction handle has simultaneously to send itself attitude and positional information to by wireless transmission method wears display
The function of equipment and wireless repeater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136214.7A CN106656299A (en) | 2016-12-12 | 2016-12-12 | Method and device for data transmission between virtual reality device and computer mainframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136214.7A CN106656299A (en) | 2016-12-12 | 2016-12-12 | Method and device for data transmission between virtual reality device and computer mainframe |
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| CN106656299A true CN106656299A (en) | 2017-05-10 |
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| CN201611136214.7A Pending CN106656299A (en) | 2016-12-12 | 2016-12-12 | Method and device for data transmission between virtual reality device and computer mainframe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107329561A (en) * | 2017-05-16 | 2017-11-07 | 广东小天才科技有限公司 | A kind of USB interface-based virtual reality method, apparatus and system |
| CN109918320A (en) * | 2019-03-13 | 2019-06-21 | 北京淳中科技股份有限公司 | A kind of control method of USB device, device and KVM control system |
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