CN106375843A - Wireless projection apparatus, system and method - Google Patents
Wireless projection apparatus, system and method Download PDFInfo
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- CN106375843A CN106375843A CN201610872830.2A CN201610872830A CN106375843A CN 106375843 A CN106375843 A CN 106375843A CN 201610872830 A CN201610872830 A CN 201610872830A CN 106375843 A CN106375843 A CN 106375843A
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- Prior art keywords
- projector equipment
- projection
- data
- wireless
- equipment
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Classifications
-
- 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 or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43637—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or 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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
-
- 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
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
Abstract
The invention discloses a wireless projection apparatus, system and method, and belongs to the technical field of communication. The method comprises the following procedures: searching projection devices within a wireless connection range; when two or more projection devices are searched, separately establishing a wireless session connection with the searched projection devices; and separately transmitting projection data to the projection devices. By adoption of the wireless projection apparatus, system and method disclosed by the invention, one-to-many screen projection and sharing can be realized, and the dependence on locations can be reduced via a WFD network.
Description
Technical field
The present invention relates to communication technical field, more particularly, to a kind of wireless display device, system and method.
Background technology
With the quick popularization of smart machine, make full use of the interaction between smart machine, realize interpersonal friendship
Stream cooperation, is a main trend realizing exchange diversification.
It is same using existing wi-fi network infrastructure that Wireless Fidelity shows that (wi-fi display, wfd) technology refers to
Shi Shixian shares the technology of Voice ＆ Video content between devices.Wfd will be used for by realizing and maintaining multimedia wi-fi to set
Secure connection between standby is shared to Voice ＆ Video content with transmitting audio and video stream and to strengthen.Even if when straight each other
When connecing use between adjacent equipment, wi-fi technology removes the constraint related to the port on matching connector type and equipment
And other burdens of the connection based on cable.Wi-fi Display Technique is specifically used for large-scale consumer and business environment,
And the function that wi-fi shows is included in large-scale equipment and display, including personal computer, DTV, machine
Top box, amusement and conference room projectors, notebook computer, panel computer and mobile phone.
But in prior art, wfd only supports man-to-man screen prjection data, therefore, it is necessary to provide a kind of wireless
Projection arrangement, system and method, to realize the screen prjection of one-to-many.
Content of the invention
In view of this, it is an object of the invention to provide a kind of wireless display device, system and method, to solve existing skill
In art, wfd only supports the problem of man-to-man screen prjection data.
The technical scheme that present invention solution above-mentioned technical problem is adopted is as follows:
The of the embodiment of the present invention is on one side, there is provided a kind of wireless display device is it is adaptable to data for projection is shared sets
Standby, described device includes:
Search module, for searching for the projector equipment in wireless join domain；
Link block, for when searching two or more projector equipment, respectively with each projection searching
Equipment sets up wireless connection；
Transport module, for transmitting data for projection to described each projector equipment respectively.
Optionally, described search module, is additionally operable to be searched by wifi Peer-To-Peer technology and nearby supports wifi equity connection
The projector equipment of network technology.
Optionally, described transport module, also includes:
Acquisition submodule, for obtaining the ip address of described each projector equipment；
Sending submodule, sends data for projection to described each projector equipment respectively according to described ip address.
Optionally, described device also includes:
Projector equipment management module, for setting up after wireless session is connected with described each projector equipment, management and institute
State the ip address of the session connection set up between each projector equipment and each projector equipment.
Optionally, described device also includes:
Entitlement management module, for setting up after wireless session is connected with described each projector equipment, managing described each throwing
The Reverse Turning Control mandate of shadow equipment.
A kind of second aspect of the embodiment of the present invention, there is provided wireless projection system, described system includes:
Data for projection shares equipment, and it includes wireless display device as described in relation to the first aspect, for throwing with least one
Shadow equipment is set up wireless session and is connected, and transmits data for projection to it, and described data for projection includes video data and voice data；
At least one projector equipment, for receiving and playing the data for projection that described data for projection shares device transmission.
3rd aspect of the embodiment of the present invention, there is provided a kind of wireless display method is it is adaptable to data for projection is shared sets
Standby, methods described includes:
Search for the projector equipment in wireless join domain；
When searching two or more projector equipment, set up wireless meeting with each projector equipment searching respectively
Words connect；
Transmit data for projection to described each projector equipment respectively.
Optionally, the described projector equipment searched in wireless join domain, comprising:
Search the projector equipment nearby supporting wifi Peer-To-Peer technology by wifi Peer-To-Peer technology.
Optionally, described transmit data for projection to described each projector equipment respectively, comprising:
Obtain the ip address of described each projector equipment；
Data for projection is sent to described each projector equipment respectively according to described ip address.
Optionally, set up after wireless session is connected with described each projector equipment, methods described also includes:
The session connection set up between management and described each projector equipment and the ip address of each projector equipment.
Wireless display device provided in an embodiment of the present invention, system and method, search two or more projections
During equipment, set up with each projector equipment searching during wifi-direct session connection respectively to described each projector equipment respectively
Transmission data for projection, the screen prjection of achievable one-to-many with share, by wfd network, the dependence to place can be reduced；Can answer
In scene for the particular demands such as multimedia conferencing room or audio-visual function classroom, fast assembling wfd network, realize resource altogether
Enjoy.
Brief description
Fig. 1 is the hardware architecture diagram of an optional terminal of various embodiments of the present invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
A kind of structural representation of wireless projection system that Fig. 3 provides for the embodiment of the present invention one；
Fig. 4 is the structural representation that the data for projection shown in Fig. 3 shares equipment；
A kind of flow chart of wireless display method that Fig. 5 provides for the embodiment of the present invention two；
The flow chart of step s502 and step s503 in the wireless display method that Fig. 6 provides for the embodiment of the present invention two.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
In order that the technical problem to be solved, technical scheme and beneficial effect are clearer, clear, below tie
Close drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
In order to explain the present invention, it is not intended to limit the present invention.
Realize the mobile terminal of each embodiment of the present invention referring now to Description of Drawings.In follow-up description, use
For represent element such as " module ", " part " or " module " suffix only for being conducive to the explanation of the present invention, itself
Not specific meaning.Therefore, " module " and " part " can mixedly use.
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
Phone, smart phone, notebook computer, digit broadcasting receiver, personal digital assistant, panel computer, portable multimedia broadcasting
Put the mobile terminal of device, guider etc. and the fixed terminal of such as digital tv, desk computer etc..Hereinafter it is assumed that
Terminal is mobile terminal.However, it will be understood by those skilled in the art that, in addition to being used in particular for the element of mobile purpose,
Construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is that the hardware configuration of an optional mobile terminal realizing each embodiment of the present invention is illustrated.
Mobile terminal 1 00 can include wireless communication unit 110, a/v (audio/video) input block 120, user input
Unit 130, sensing unit 140, output unit 150, memorizer 160, interface unit 170, controller 180 and power subsystem 190
Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups illustrating
Part.More or less of assembly can alternatively be implemented.Will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assemblies, and it allows mobile terminal 1 00 and wireless communication system
Or the radio communication between network.For example, wireless communication unit can include broadcasting reception module 111, mobile communication module
112nd, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.
Broadcasting reception module 111 receives broadcast singal and/or broadcast via broadcast channel from external broadcast management server
Relevant information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can be generated and sent
The broadcast singal generating before the server of broadcast singal and/or broadcast related information or reception and/or broadcast related information
And send it to the server of terminal.Broadcast singal can include tv broadcast singal, radio signals, data broadcasting
Signal etc..And, broadcast singal may further include the broadcast singal combining with tv or radio signals.Broadcast phase
Pass information can also provide via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 is receiving.Broadcast singal can exist in a variety of manners, and for example, it can be with the electronics of DMB (dmb)
The form of program guide (epg), the electronic service guidebooks (esg) of digital video broadcast-handheld (dvb-h) etc. and exist.Broadcast
Receiver module 111 can be broadcasted by using various types of broadcast system receipt signals.Especially, broadcasting reception module 111
Can be wide by using such as multimedia broadcasting-ground (dmb-t), DMB-satellite (dmb-s), digital video
Broadcast-hand-held (dvb-h), the Radio Data System of forward link media (mediaflo@), received terrestrial digital broadcasting integrated service
Etc. (isdb-t) digit broadcasting system receives digital broadcasting.Broadcasting reception module 111 may be constructed such that and is adapted to provide for extensively
Broadcast the various broadcast systems of signal and above-mentioned digit broadcasting system.Via broadcasting reception module 111 receive broadcast singal and/
Or broadcast related information can be stored in memorizer 160 (or other types of storage medium).
Mobile communication module 112 sends radio signals to base station (for example, access point, node b etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal can include voice and lead to
Words signal, video calling signal or the various types of data sending and/or receiving according to text and/or Multimedia Message.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.This module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by this module can include wlan (wireless lan) (wi-fi), wibro
(WiMAX), wimax (worldwide interoperability for microwave accesses), hsdpa (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology include indigo plant
Tooth tm, RF identification (rfid), Infrared Data Association (irda), ultra broadband (uwb), purple honeybee tm etc..
Location information module 115 be for check or obtain mobile terminal positional information module.Location information module
Typical case be gps (global positioning system).According to current technology, gps module 115 calculates and is derived from three or more satellites
Range information and correct time information and for the Information application triangulation calculating, thus according to longitude, latitude
Highly accurately calculate three-dimensional current location information.Currently, the method for calculating position and temporal information is defended using three
Star and the error of the position that calculates by using other satellite correction and temporal information.Additionally, gps module 115
Can be by Continuous plus current location information in real time come calculating speed information.
A/v input block 120 is used for receiving audio or video signal.A/v input block 120 can include camera 121 He
Mike 1220, camera 121 is to the static map being obtained by image capture apparatus in Video Capture pattern or image capture mode
The view data of piece or video is processed.Picture frame after process may be displayed on display unit 151.At camera 121
Picture frame after reason can be stored in memorizer 160 (or other storage medium) or carry out via wireless communication unit 110
Send, two or more cameras 1210 can be provided according to the construction of mobile terminal.Mike 122 can be in telephone relation mould
Sound (voice data) is received via mike in formula, logging mode, speech recognition mode etc. operational mode, and can be by
Such acoustic processing is voice data.Audio frequency (voice) data after process can be changed in the case of telephone calling model
For can be sent to the form output of mobile communication base station via mobile communication module 112.Mike 122 can implement all kinds
Noise eliminate (or suppression) algorithm with eliminate (or suppression) receive and the noise that produces during sending audio signal or
Person disturbs.
User input unit 130 can generate key input data to control each of mobile terminal according to the order of user input
Plant operation.User input unit 130 allows the various types of information of user input, and can include keyboard, metal dome, touch
Plate (for example, detection due to touched and lead to resistance, pressure, the change of electric capacity etc. sensitive component), roller, rocking bar etc.
Deng.Especially, when touch pad is superimposed upon on display unit 151 as a layer, touch screen can be formed.
Sensing unit 140 detect mobile terminal 1 00 current state, (for example, mobile terminal 1 00 open or close shape
State), the position of mobile terminal 1 00, user is for the presence or absence of the contact (that is, touch input) of mobile terminal 1 00, mobile terminal
100 orientation, the acceleration or deceleration movement of mobile terminal 1 00 and direction etc., and generate for controlling mobile terminal 1 00
The order of operation or signal.For example, when mobile terminal 1 00 is embodied as sliding-type mobile phone, sensing unit 140 can sense
This sliding-type phone opens or cuts out.In addition, sensing unit 140 can detect power subsystem 190 whether provide electric power or
Whether person's interface unit 170 is coupled with external device (ED).Sensing unit 140 can include proximity transducer 1410 and will combine below
Touch screen this is described.
Interface unit 170 is connected, with mobile terminal 1 00, the interface that can pass through as at least one external device (ED).For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port of device for connection with identification module, audio input/output (i/o) end
Mouth, video i/o port, ear port etc..Identification module can be storage for verifying that user uses each of mobile terminal 1 00
Kind of information and subscriber identification module (uim), client identification module (sim), Universal Subscriber identification module (usim) can be included
Etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can take the form of smart card, therefore, know
Other device can be connected with mobile terminal 1 00 via port or other attachment means.Interface unit 170 can be used for reception and is derived from
The input (for example, data message, electric power etc.) of the external device (ED) and input receiving is transferred in mobile terminal 1 00
One or more elements or can be used for transmission data between mobile terminal and external device (ED).
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing by it by electricity
Power provides the path of mobile terminal 1 00 from base or can serve as allowing the various command signals from base input to pass through it
It is transferred to the path of mobile terminal.May serve as identifying that mobile terminal is from the various command signals of base input or electric power
The no signal being accurately fitted within base.Output unit 150 is configured to defeated with the offer of vision, audio frequency and/or tactile manner
Go out signal (for example, audio signal, video signal, alarm signal, vibration signal etc.).Output unit 150 can include showing
Unit 151, dio Output Modules 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information processing in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show (for example, text messaging, the multimedia file that communicate with call or other
Download etc.) related user interface (ui) or graphic user interface (gui).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, illustrate video or figure
Ui or gui of picture and correlation function etc..
Meanwhile, when display unit 151 and the touch pad touch screen with formation superposed on one another as a layer, display unit
151 can serve as input equipment and output device.Display unit 151 can include liquid crystal display (lcd), thin film transistor (TFT)
In lcd (tft-lcd), Organic Light Emitting Diode (oled) display, flexible display, three-dimensional (3d) display etc. at least
A kind of.Some in these display may be constructed such that transparence to allow user from outside viewing, and this is properly termed as transparent
Display, typical transparent display can be, for example, toled (transparent organic light emitting diode) display etc..According to specific
The embodiment wanted, mobile terminal 1 00 can include two or more display units (or other display device), for example, moves
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detection and touches
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
When under the isotypes such as speech recognition mode, broadcast reception mode, that wireless communication unit 110 is received or in memorizer 160
The voice data transducing audio signal of middle storage and be output as sound.And, dio Output Modules 152 can provide and move
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation of terminal 100 execution.
Dio Output Modules 152 can include speaker, buzzer etc..
Alarm unit 153 can provide output to notify event to mobile terminal 1 00.Typical event is permissible
Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video output, alarm unit
153 can provide output in a different manner with the generation of notification event.For example, alarm unit 153 can be in the form of vibrating
Output is provided, enters when communicating (incomingcommunication) when receiving calling, message or some other, alarm list
Unit 153 can provide tactile output (that is, vibrating) to notify to user.By providing such tactile output, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can be provided via display unit 151 or dio Output Modules 152.
Memorizer 160 can store software program of the process being executed by controller 180 and control operation etc., or can
Temporarily to store the data (for example, telephone directory, message, still image, video etc.) having exported or will having exported.And
And, memorizer 160 can be to store the vibration of various modes with regard to exporting and audio signal when touching and being applied to touch screen
Data.
Memorizer 160 can include the storage medium of at least one type, and described storage medium includes flash memory, hard disk, many
Media card, card-type memorizer (for example, sd or dx memorizer etc.), random access storage device (ram), static random-access storage
Device (sram), read only memory (rom), Electrically Erasable Read Only Memory (eeprom), programmable read only memory
(prom), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can execute memorizer with by network connection
The network storage device cooperation of 160 store function.
Controller 180 generally controls the overall operation of mobile terminal.For example, controller 180 execution and voice call, data
The related control of communication, video calling etc. and process.In addition, controller 180 can be included for reproducing (or playback) many matchmakers
The multi-media module 1810 of volume data, multi-media module 1810 can construct in controller 180, or it is so structured that and control
Device 180 processed separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input executing on the touchscreen or figure
Piece is drawn input and is identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit
Suitable electric power needed for part and assembly.
Various embodiment described herein can be with using such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implementing.Hardware is implemented, embodiment described herein can be by using application-specific IC
(asic), digital signal processor (dsp), digital signal processing device (dspd), programmable logic device (pld), scene can
Program gate array (fpga), processor, controller, microcontroller, microprocessor, be designed to execute function described herein
At least one in electronic unit implementing, in some cases, can be implemented in controller 180 by such embodiment.
Software is implemented, the embodiment of such as process or function can with allow to execute the single of at least one function or operation
Software module is implementing.Software code can be come by the software application (or program) write with any suitable programming language
Implement, software code can be stored in memorizer 160 and be executed by controller 180.
So far, describe mobile terminal according to its function.Below, for the sake of brevity, will describe such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc. is as showing
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and is not limited to slide type mobile terminal.
As shown in Figure 1 mobile terminal 1 00 may be constructed such that using via frame or packet transmission data all if any
Line and wireless communication system and satellite-based communication system are operating.
The communication system being wherein operable to according to the mobile terminal of the present invention referring now to Fig. 2 description.
Such communication system can use different air interfaces and/or physical layer.For example, used by communication system
Air interface includes such as frequency division multiple access (fdma), time division multiple acess (tdma), CDMA (cdma) and universal mobile communications system
System (umts) (especially, Long Term Evolution (lte)), global system for mobile communications (gsm) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such teaching is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 1s 00, multiple base station (bs) 270, base station
Controller (bsc) 275 and mobile switching centre (msc) 280.Msc280 is configured to and Public Switched Telephony Network (pstn)
290 formation interfaces.Msc280 is also structured to and can form interface via the bsc275 that back haul link is couple to base station 270.
Back haul link can construct according to any one in some known interfaces, and described interface includes such as e1/t1, atm, ip,
Ppp, frame relay, hdsl, adsl or xdsl.It will be appreciated that system as shown in Figure 2 can include multiple bsc2750.
Each bs270 can service one or more subregions (or region), by the sky of multidirectional antenna or sensing specific direction
Each subregion that line covers is radially away from bs270.Or, each subregion can by for diversity reception two or more
Antenna covers.Each bs270 may be constructed such that support multiple frequency distribution, and the distribution of each frequency has specific frequency spectrum
(for example, 1.25mhz, 5mhz etc.).
Intersecting that subregion and frequency are distributed can be referred to as cdma channel.Bs270 can also be referred to as base station transceiver
System (bts) or other equivalent terms.In this case, term " base station " can be used for broadly representing single
Bsc275 and at least one bs270.Base station can also be referred to as " cellular station ".Or, each subregion of specific bs270 can be claimed
For multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to the mobile terminal of operation in system by broadcsting transmitter (bt) 295
100.Broadcasting reception module 111 is arranged at mobile terminal 1 00 to receive the broadcast being sent by bt295 as shown in Figure 1
Signal.In fig. 2 it is shown that several global positioning system (gps) satellites 300.Satellite 300 helps position multiple mobile terminals
At least one of 100.
In fig. 2, depict multiple satellites 300, it is understood that be, it is possible to use any number of satellite obtains useful
Location information.Gps module 115 is generally configured to coordinate with satellite 300 to obtain the positioning letter wanted as shown in Figure 1
Breath.Substitute gps tracking technique or outside gps tracking technique, it is possible to use other of the position of mobile terminal can be followed the tracks of
Technology.In addition, at least one gps satellite 300 can optionally or additionally process satellite dmb transmission.
As a typical operation of wireless communication system, bs270 receives the reverse link from various mobile terminal 1s 00
Signal.Mobile terminal 1 00 generally participates in call, information receiving and transmitting and other types of communication.Each of certain base station 270 reception is anti-
Processed in specific bs270 to link signal.The data obtaining is forwarded to the bsc275 of correlation.Bsc provides call
Resource allocation and the mobile management function of including the coordination of soft switching process between bs270.Bsc275 is also by the number receiving
According to being routed to msc280, it provides the extra route service for forming interface with pstn290.Similarly, pstn290 with
Msc280 forms interface, and msc and bsc275 form interface, and bsc275 correspondingly controls bs270 with by forward link signals
It is sent to mobile terminal 1 00.
Based on the These characteristics of above-mentioned terminal hardware structure, each embodiment of the present invention is proposed.
The embodiment of the present invention one provides a kind of wireless projection system, refers to Fig. 3, shares including a data for projection and sets
For 301 and multiple projector equipment 302.
Data for projection shares equipment 301, is connected for setting up wireless session with projector equipment 302, and to its transmission projection
Data, this data for projection includes video data and voice data；
Projector equipment 302, for receiving and playing the data for projection that this data for projection shares equipment 301 transmission.
It should be noted that it can be mobile terminal that the data for projection of the embodiment of the present invention shares equipment.Data for projection bag
Include voice data and video data.
In practical application, this is wireless to connect inclusion: the direct-connected wifi-direct of Wireless Fidelity, bluetooth connection or mobile number
According to connection (as mobile 4g, 5g network connection).The present embodiment is illustrated with wifi-direct connection.
Data for projection is shared equipment 301 and is included wireless display device, refers to Fig. 4, and this wireless display device includes:
Search module 401, for searching for the projector equipment in wireless join domain；
Link block 402, for when searching two or more projector equipment, respectively with each throwing searching
Shadow equipment sets up wireless connection；
Transport module 403, for transmitting data for projection to this each projector equipment respectively.
In an optional scheme, this search module 401, it is additionally operable to search by wifi Peer-To-Peer technology and nearby prop up
Hold the projector equipment of wifi Peer-To-Peer technology.
In practical application, data for projection share equipment 301 search module 401 send on predefined channel detect please
Seek frame (probe request frame).Detect claim frame and include such as reciprocity (p2p) information element (ie), p2p asterisk wildcard
The information of ssid, asterisk wildcard ssid, destination-address, device type and equipment id etc.
Now, projector equipment 302 is listened on predefined channel and is detected claim frame.Each projector equipment can determine spy
Look into the information matches search criterion in claim frame, if it finds a match, then projector equipment 302 is asked having detecting of equipment description
Ask frame to be sent to data for projection and share equipment 301.
Then, search module 401 continues executing with service discovery to obtain the service that projector equipment 302 is supported.In service
During discovery, gas initial request is sent to projector equipment 302 by search module 401.As response, projector equipment 302 will have
The gas initial communication of information on services is sent to search module 401.Hereafter, wifi module 402 uses and obtains from projector equipment 302
Equipment and service describing set up wfd with projector equipment 302 and be connected.
According to wi-fi direct technical specification, set up wifi-direct with each projector equipment 302 searching and be connected
When, also need to specify a group administrator (group owner) and multiple client (client), in the present embodiment, project number
It is designated as group administrator according to sharing equipment 301, multiple projector equipments 302 are designated as group client.Hereafter, project number
It is connected according to sharing equipment 301 and all setting up a tcp with each projector equipment 302.
In an optional scheme, this device also includes:
Projector equipment management module, for, after setting up wifi-direct session connection with this each projector equipment, managing
The session connection set up and this each projector equipment between and the ip address of each projector equipment.
In practical application, in order to realize the communication link of bottom, projector equipment management module is for each projector equipment all
It is assigned with an ip address, and the corresponding relation of each projector equipment and its ip address is stored in an ip list.
In an optional scheme, this transport module 403, also include:
Acquisition submodule, for obtaining the ip address of this each projector equipment；
Sending submodule, sends data for projection to this each projector equipment respectively according to this ip address.
In practical application, transport module 403 can also include consulting submodule, for consulting ability with this each projector equipment
Parameter, this ability parameter includes this data for projection and shares the data form that end equipment and this each projector equipment are supported；
Now, sending submodule, is additionally operable to after consulting success execute this respectively to this each projector equipment transmission projection number
According to step.
In practical application, after connection establishment, data for projection shares the wireless link of equipment utilization bottom, will currently shield
After curtain video/audio packing, give all of projector equipment in conjunction with rtp protocol transmission.Specifically, projection side apparatus are every default
Time (for example, 30ms) captures a current screen data, is packaged into video-voice frequency flow, and is sent out on-screen data according to rtp agreement
Deliver to projector equipment 302.The media data flow comprising on-screen data receiving is carried out caching process and shows by projector equipment 302
Show.
In an optional scheme, this device also includes:
Entitlement management module, for, after setting up wifi-direct session connection with this each projector equipment, managing this each
The Reverse Turning Control mandate of projector equipment.
In the present embodiment, there is each projector equipment of multiple projector equipments, and each projector equipment can divide to data for projection
The equipment of enjoying is controlled.Accordingly, it would be desirable to Reverse Turning Control be managed.Specifically, can be by the way of following:
Mode one: according to sequential, respond the input signal of the projector equipment being initially received.
Mode two: setting priority, if receiving multiple input signals in synchronization, response highest priority or relatively
The input signal of high projector equipment.
Mode three: the fixing projector equipment of setting one, only in response to its input signal.
It should be understood that the embodiment of the present invention is not limited to above-mentioned three kind mode, may also include other modes, as long as meeting
Only allow a projector equipment to have Reverse Turning Control in each moment to weigh.
In an optional scheme, data for projection is shared equipment 301 and can also be included:
Selecting module, for when searching projector equipment, selecting to need to set up the projection of wifi-direct session connection
Equipment.
The wireless projection system of the embodiment of the present invention, can achieve the screen prjection to one-to-many and shares, by wfd net
Network, can reduce the dependence to place；Can be applicable in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom, soon
Speed sets up wfd network, realizes resource-sharing.
On the basis of above-described embodiment, the embodiment of the present invention two provides a kind of wireless display method it is adaptable to project number
According to sharing equipment, refer to Fig. 5, the method includes:
S501, the projector equipment searched in wireless join domain；
S502, when searching two or more projector equipment, set up with each projector equipment searching respectively
Wireless session connects；
S503, transmit data for projection to this each projector equipment respectively.
It should be noted that it can be mobile terminal that the data for projection of the embodiment of the present invention shares equipment.Data for projection bag
Include voice data and video data.
In practical application, this is wireless to connect inclusion: the direct-connected wifi-direct of Wireless Fidelity, bluetooth connection or mobile number
According to connection (as mobile 4g, 5g network connection).The present embodiment is illustrated with wifi-direct connection.
Projector equipment in an optional scheme, in this search Wireless Fidelity wifi join domain, comprising:
Search the projector equipment nearby supporting wifi Peer-To-Peer technology by wifi Peer-To-Peer technology.
Specifically, this step method flow process includes in Fig. 6 step s601 to step s603:
S601, data for projection are shared equipment and are sent on predefined channel and detect claim frame.
Specifically, detect claim frame and include such as reciprocity (p2p) information element (ie), p2p asterisk wildcard ssid, asterisk wildcard
The information of ssid, destination-address, device type and equipment id etc.
S602, projector equipment are listened on predefined channel and are detected claim frame.
S603, projector equipment determine detect information matches search criterion in claim frame with the information matches prestoring when,
The claim frame of detecting with equipment description is sent to data for projection and shares equipment.
In an optional scheme, step s502 includes in Fig. 6 step s604 to step s606 part
S604, data for projection are shared equipment and gas initial request are sent to projector equipment.
The gas initial communication with information on services is sent to data for projection and shares equipment by s605, projector equipment.
S606, data for projection are shared equipment and are set up according to the equipment obtaining from projector equipment and service describing and projector equipment
Wfd connects.
According to wifi direct technical specification, when setting up wifi-direct with each projector equipment 302 searching and being connected,
Also need to specify a group administrator (groupowner) and multiple client (client), in the present embodiment, data for projection divides
Enjoy equipment 301 and be designated as group administrator, multiple projector equipments 302 are designated as group client.Hereafter, data for projection divides
Enjoy equipment 301 and all set up a tcp with each projector equipment 302 and be connected.
In an optional scheme, after setting up wifi-direct session connection with this each projector equipment, the method is also
Including:
The session connection set up between management and this each projector equipment and the ip address of each projector equipment.
In practical application, in order to realize the communication link of bottom, projector equipment management module is for each projector equipment all
It is assigned with an ip address, and the corresponding relation of each projector equipment and its ip address is stored in an ip list.
In an optional scheme, this transmits data for projection to each projector equipment respectively, comprising:
Obtain the ip address of this each projector equipment；
Data for projection is sent to this each projector equipment respectively according to this ip address.
In practical application, before sending data for projection, the method also includes:
Consult ability parameter with this each projector equipment, this ability parameter includes this data for projection and shares end equipment and this each throwing
The data form that shadow equipment is supported；
Execute this respectively to the step of this each projector equipment transmission data for projection after consulting success.
In practical application, after connection establishment, data for projection shares the wireless link of equipment utilization bottom, will currently shield
After curtain video/audio packing, give all of projector equipment in conjunction with rtp protocol transmission.Specifically, to share equipment every for data for projection
Capture a current screen data every Preset Time (for example, 30ms), be packaged into regard, audio stream, and according to rtp agreement by screen
Data is activation is to projector equipment.
In an optional scheme, after setting up wifi-direct session connection with this each projector equipment, the method is also
Including:
Manage the Reverse Turning Control mandate of this each projector equipment.
In the present embodiment, there is each projector equipment of multiple projector equipments, and each projector equipment can divide to data for projection
The equipment of enjoying is controlled.Accordingly, it would be desirable to Reverse Turning Control be managed.Specifically, can be by the way of following:
Mode one: according to sequential, respond the input signal of the projector equipment being initially received.
Mode two: setting priority, if receiving multiple input signals in synchronization, response highest priority or relatively
The input signal of high projector equipment.
Mode three: the fixing projector equipment of setting one, only in response to its input signal.
It should be understood that the embodiment of the present invention is not limited to above-mentioned three kind mode, may also include other modes, as long as meeting
Only allow a projector equipment to have Reverse Turning Control in each moment to weigh.
The wireless display method of the embodiment of the present invention, can achieve the screen prjection to one-to-many and shares, by wfd net
Network, can reduce the dependence to place；Can be applicable in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom, soon
Speed sets up wfd network, realizes resource-sharing.
The preferred embodiments of the present invention above by reference to brief description, not thereby limit to the interest field of the present invention.This
Skilled person, all should be at this without departing from any modification, equivalent and the improvement made in the scope of the present invention and essence
Within the interest field of invention.
Claims (10)
1. a kind of wireless display device is it is adaptable to data for projection shares equipment it is characterised in that described device includes:
Search module, for searching for the projector equipment in wireless join domain；
Link block, for when searching two or more projector equipment, respectively with each projector equipment searching
Set up wireless connection；
Transport module, for transmitting data for projection to described each projector equipment respectively.
2. device according to claim 1, it is characterised in that described search module, is additionally operable to by wifi Peer-To-Peer
Technology searches the projector equipment nearby supporting wifi Peer-To-Peer technology.
3. device according to claim 1, it is characterised in that described transport module, also includes:
Acquisition submodule, for obtaining the ip address of described each projector equipment；
Sending submodule, sends data for projection to described each projector equipment respectively according to described ip address.
4. device according to claim 3 is it is characterised in that described device also includes:
Projector equipment management module, for setting up after wireless session is connected with described each projector equipment, management is each with described
The session connection set up between projector equipment and the ip address of each projector equipment.
5. device according to claim 3 is it is characterised in that described device also includes:
Entitlement management module, for setting up after wireless session is connected with described each projector equipment, managing described each projection and setting
Standby Reverse Turning Control mandate.
6. a kind of wireless projection system is it is characterised in that described system includes:
Data for projection shares equipment, and it includes the wireless display device as described in any one of claim 1 to 5, for at least
One projector equipment is set up wireless session and is connected, and transmits data for projection to it, and described data for projection includes video data and sound
Frequency evidence；
At least one projector equipment, for receiving and playing the data for projection that described data for projection shares device transmission.
7. a kind of wireless display method is it is adaptable to data for projection shares equipment it is characterised in that methods described includes:
Search for the projector equipment in wireless join domain；
When searching two or more projector equipment, set up wireless session respectively with each projector equipment searching even
Connect；
Transmit data for projection to described each projector equipment respectively.
8. method according to claim 7 is it is characterised in that projector equipment in the wireless join domain of described search, bag
Include:
Search the projector equipment nearby supporting wifi Peer-To-Peer technology by wifi Peer-To-Peer technology.
9. method according to claim 7 is it is characterised in that described transmit projection number to described each projector equipment respectively
According to, comprising:
Obtain the ip address of described each projector equipment；
Data for projection is sent to described each projector equipment respectively according to described ip address.
10. method according to claim 9 is connected it is characterised in that setting up wireless session with described each projector equipment
Afterwards, methods described also includes:
The session connection set up between management and described each projector equipment and the ip address of each projector equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610872830.2A CN106375843A (en) | 2016-09-29 | 2016-09-29 | Wireless projection apparatus, system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610872830.2A CN106375843A (en) | 2016-09-29 | 2016-09-29 | Wireless projection apparatus, system and method |
Publications (1)
| Publication Number | Publication Date |
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| CN106375843A true CN106375843A (en) | 2017-02-01 |
Family
ID=57897137
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610872830.2A Withdrawn CN106375843A (en) | 2016-09-29 | 2016-09-29 | Wireless projection apparatus, system and method |
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| CN (1) | CN106375843A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107302559A (en) * | 2017-05-18 | 2017-10-27 | 西安万像电子科技有限公司 | Long-range control method, device and system |
| WO2018149319A1 (en) * | 2017-02-14 | 2018-08-23 | 阿里巴巴集团控股有限公司 | Communication method and device |
| CN111277807A (en) * | 2020-01-14 | 2020-06-12 | 广东小天才科技有限公司 | Projection implementation method, wearable device, display device and storage medium |
| CN112954287A (en) * | 2017-06-19 | 2021-06-11 | 西安全星智能电子有限责任公司 | Projector control method, system and computer readable storage medium |
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| CN105208434A (en) * | 2014-06-11 | 2015-12-30 | 阿里巴巴集团控股有限公司 | Media projection method, media projection equipment, control terminal, and cloud server |
| CN105578227A (en) * | 2015-12-07 | 2016-05-11 | 努比亚技术有限公司 | Multi-screen projection control method and system and terminal device |
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| CN105208434A (en) * | 2014-06-11 | 2015-12-30 | 阿里巴巴集团控股有限公司 | Media projection method, media projection equipment, control terminal, and cloud server |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018149319A1 (en) * | 2017-02-14 | 2018-08-23 | 阿里巴巴集团控股有限公司 | Communication method and device |
| US11038828B2 (en) | 2017-02-14 | 2021-06-15 | Alibaba Group Holding Limited | Automatic display of session interface for communication with neighboring device |
| TWI738909B (en) * | 2017-02-14 | 2021-09-11 | 香港商阿里巴巴集團服務有限公司 | Communication method and device |
| CN107302559A (en) * | 2017-05-18 | 2017-10-27 | 西安万像电子科技有限公司 | Long-range control method, device and system |
| CN112954287A (en) * | 2017-06-19 | 2021-06-11 | 西安全星智能电子有限责任公司 | Projector control method, system and computer readable storage medium |
| CN113225595A (en) * | 2017-06-19 | 2021-08-06 | 西安全星智能电子有限责任公司 | Projector control method, system and computer readable storage medium |
| CN111277807A (en) * | 2020-01-14 | 2020-06-12 | 广东小天才科技有限公司 | Projection implementation method, wearable device, display device and storage medium |
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Application publication date: 20170201 |