CN106507072A - A kind of wireless display device, system and method - Google Patents
A kind of wireless display device, system and method Download PDFInfo
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- CN106507072A CN106507072A CN201610885786.9A CN201610885786A CN106507072A CN 106507072 A CN106507072 A CN 106507072A CN 201610885786 A CN201610885786 A CN 201610885786A CN 106507072 A CN106507072 A CN 106507072A
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- projection
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- projector equipment
- radio channel
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- 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
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- 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
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention discloses a kind of wireless display device, system and method, belong to communication technique field.Method flow includes：Share the communication quality of double radio channels of equipment and the quantity for needing to connect projector equipment according to the data for projection, determine the radio channel that this projection is used；Projector equipment is searched in the wireless join domain of the radio channel for determining；When two or more projector equipments are searched, set up with each projector equipment for searching respectively and be wirelessly connected；Data for projection is transmitted to each projector equipment.Can achieve the screen prjection of one-to-many and share using the present invention, by WFD networks, the dependence to place can be reduced.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of projection arrangement, system and method.
Background technology
With the quick popularization of smart machine, the interaction between smart machine is made full use of, realize interpersonal friendship
Stream cooperation, is a main trend for realizing exchange diversification.
Wireless Fidelity shows that (Wi-Fi Display, WFD) technology is referred to using the same of existing Wi-Fi network infrastructure
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 to strengthen with transmitting audio and video stream.Even if when straight each other
Connect when using between adjacent equipment, Wi-Fi technology except the constraint related to matching connector type and port on equipment with
And other burdens of the connection based on cable.Wi-Fi Display Techniques are specifically used for large-scale consumer and business environment, and
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.
In life, increasing people begins to use Wi-Fi Display technology to carry out the transmission of information and share.One
As, the WFD equipment of the transmission information is referred to as projecting data sharing equipment, such as mobile phone, panel computer etc.；The receive information
WFD equipment be referred to as projector equipment, such as television set etc., it is also possible to including mobile phone, flat board work as.By Wi-Fi Display technology
Mobile phone can be connected to share the information such as the video in mobile phone, game, music with television set by we.
WFD technology of the prior art is all projection data sharing equipment and projector equipment is all man-to-man relation, real
Existing mode and application scenarios are all more single.In order to enrich the implementation of WFD technology, and multiple applied fields can be adapted to
Scape, those skilled in the art propose the technical concept that a projection data sharing equipment corresponds to multiple projector equipments, but
Due to projecting the restriction of the reasons such as intensity, the transmission speed of data sharing equipment wireless signal, in the projection system using one-to-many
During system, easily there is the problems such as data for projection transmission is slow, and data for projection plays discontinuous.
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 in the optical projection system using one-to-many, easily there is the problems such as data for projection transmission is slow, and data for projection plays discontinuous.
The technical scheme adopted by present invention solution above-mentioned technical problem is as follows：
The one side of the embodiment of the present invention, there is provided a kind of wireless display device, it is adaptable to be provided with double radio channels
Data for projection share equipment, described device includes：
Determining module, for sharing the communication quality of double radio channels of equipment and needing to connect according to the data for projection
The quantity of projector equipment, determines the radio channel that this projection is used；
Search module, for searching for projector equipment in the wireless join domain of the radio channel for determining；
Link block, for when two or more projector equipments are searched, respectively with each projection for searching
Equipment sets up wireless connection；
Transport module, for transmitting data for projection to each projector equipment.
Optionally, the determining module includes：
Comparison sub-module, for the communication quality of relatively described pair of radio channel；
Submodule is selected, according to comparative result, the radio channel for selecting use quality good；Or
The determining module also includes：
Determination sub-module, for determining the quantity of the projector equipment of this needs connection；
The selection submodule, is additionally operable to, when the quantity is more than preset value, select to use described pair of channel radio simultaneously
Road；
The comparison sub-module, is additionally operable to when the quantity is less than preset value, the relatively communication of described pair of radio channel
Quality；
The selection submodule, is additionally operable to the radio channel for according to comparative result, selecting use quality good.
Optionally, described pair of radio channel includes double wifi passages.
Optionally, described device also includes：
Projector equipment management module, the session connection and each projection for setting up between management and each projector equipment set
Standby IP address.
Optionally, described device also includes：
Entitlement management module, for managing the Reverse Turning Control mandate of each projector equipment.
Second aspect of the embodiment of the present invention, there is provided a kind of Wireless Fidelity optical projection system, the system include：
Data for projection shares equipment, and which includes Wireless Fidelity projection arrangement as described in relation to the first aspect, for at least one
Wireless session connection set up by individual projector equipment, and transmits data for projection to which, and the data for projection includes video data and audio frequency
Data；
At least one projector equipment, for receiving and playing the data for projection that the data for projection shares device transmission.
3rd aspect of the embodiment of the present invention, there is provided a kind of wireless display method, it is adaptable to be provided with double radio channels
Data for projection share equipment, methods described includes：
Share the communication quality of double radio channels of equipment and the number for needing to connect projector equipment according to the data for projection
Amount, determines the radio channel that this projection is used；
Projector equipment is searched in the wireless join domain of the radio channel for determining；
When two or more projector equipments are searched, set up with each projector equipment for searching respectively and wirelessly connect
Connect；
Data for projection is transmitted to each projector equipment.
Optionally, according to the data for projection share equipment double radio channels communication quality and needs connection projection
The quantity of equipment, determines the radio channel that this projection is used, including：
The communication quality of relatively described pair of radio channel；
According to comparative result, the radio channel for selecting use quality good；Or
Determine the quantity of the projector equipment of this needs connection；
If the quantity is more than preset value, select to use described pair of radio channel simultaneously；
If the quantity is less than preset value, the relatively communication quality of described pair of radio channel, and according to comparative result, selects
The good radio channel of use quality.
Optionally, described pair of radio channel includes double wifi passages.
Optionally, methods described also includes：
The session connection that sets up between management and each projector equipment.
Wireless display device provided in an embodiment of the present invention, system and method, using the projection number for being provided with double radio channels
According to equipment is shared, can be selected according to different needs suitable wireless when the screen prjection to one-to-many is realized with sharing
Passage is realized and the wireless connection between multiple projector equipments, so as to ensure the transmission speed of data for projection, it is to avoid projector equipment
The discontinuous problem of the factor data transmission broadcasting that causes of congestion, can be applicable to multimedia conferencing room or audio-visual function classroom etc. specific
In the scene of demand, fast assembling WFD networks realize resource-sharing.
Description of the drawings
Hardware architecture diagrams of the Fig. 1 for 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；
Fig. 3 is a kind of structural representation of wireless projection system that the embodiment of the present invention one is provided；
Fig. 4 is the structural representation of the projection arrangement that the data for projection shown in Fig. 3 shares equipment；
Fig. 5 is a kind of flow chart of wireless display method that the embodiment of the present invention two is provided；
Fig. 6 is the flow chart of step S502 and step S503 in the wireless display method that the embodiment of the present invention two is provided.
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
Drawings and Examples are closed, 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.
Referring now to the mobile terminal that Description of Drawings realizes each embodiment of the invention.In follow-up description, use
For representing the suffix of such as " module ", " part " or " module " of element only for being conducive to the explanation of the present invention, itself
Not specific meaning.Therefore, " module " mixedly can be used with " part ".
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 fixed terminal of the mobile terminal and such as numeral TV, desk computer etc. of device, guider 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 moving the element of 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 for realizing each embodiment of the 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 for illustrating
Part.More or less of component 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 which 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 generated before the server or reception of broadcast singal and/or broadcast related information and/or broadcast related information
And send it to the server of terminal.Broadcast singal can include TV broadcast singals, radio signals, data broadcasting
Signal etc..And, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Pass information can also be provided via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 is receiving.Broadcast singal can be present in a variety of manners, and for example, which 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 receive signal broadcast by using various types of broadcast systems.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 be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.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 be logical including voice
Words signal, video calling signal or the various types of data for 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.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by the module can include WLAN (WLAN) (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 is calculated from three or more satellites
Range information and correct time information and for calculate Information application triangulation, so as to according to longitude, latitude
Three-dimensional current location information is highly accurately calculated.Currently, defended using three for calculating the method for position and temporal information
Star and the error of the position that calculated 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 blocks 120 are used for receiving audio or video signal.A/V input blocks 120 can include 121 He of camera
Mike 1220,121 pairs of static maps obtained by image capture apparatus in Video Capture pattern or image capture mode of camera
The view data of piece or video is processed.Picture frame after process is may be displayed on display unit 151.At camera 121
Picture frame after reason can be stored in memorizer 160 (or other storage mediums) 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 the form output of mobile communication base station can be sent to via mobile communication module 112.Mike 122 can implement all kinds
Noise eliminate (or suppress) algorithm with eliminate noise that (or suppression) is produced during receiving and 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 is due to the sensitive component of the change of touched and caused resistance, pressure, electric capacity etc.), 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 detects the current state of mobile terminal 1 00, and (for example, mobile terminal 1 00 opens or closes shape
State), the position of mobile terminal 1 00, user is for the presence or absence of contact (that is, touch input), the mobile terminal of mobile terminal 1 00
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 be sensed
The sliding-type phone is opened or is cut 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 will be combined below including proximity transducer 1410
Touch screen is being described to this.
Interface unit 170 is connected the interface that can pass through as at least one external device (ED) with mobile terminal 1 00.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 for being used for device of the connection with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be that storage uses each of mobile terminal 1 00 for verifying user
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 receive from
The input (for example, data message, electric power etc.) of external device (ED) and the input for receiving is transferred in mobile terminal 1 00
One or more elements 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 to pass through which 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 which
It is transferred to the path of mobile terminal.The various command signals or electric power being input into from base may serve as recognizing that mobile terminal is
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 processed in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia files
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 the display unit 151 and 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 that wants, mobile terminal 1 00 can include two or more display units (or other display devices), for example, move
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detection and touch
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal 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 it is output as sound.And, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation that terminal 100 is executed.
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 can be with
Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video is exported, 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, when calling, message or some other entrance communication (incomingcommunication) are received, alarm list
Unit 153 can provide tactile output (that is, vibrating) to notify to user.Tactile output as by providing, 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 for the process and control operation executed by controller 180 etc., Huo Zheke
Temporarily to store the data for having exported or will having exported (for example, telephone directory, message, still image, video etc.).And
And, memorizer 160 can be storing 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 the storage medium includes flash memory, hard disk, many
Media card, card-type memorizer (for example, SD or DX memorizeies 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.
The overall operation of 180 usual control mobile terminal of controller.For example, controller 180 is executed and voice call, data
The related control of communication, video calling etc. and process.In addition, controller 180 can include (or playback) many matchmakers for reproducing
The multi-media module 1810 of volume data, multi-media module 1810 can be constructed in controller 180, or it is so structured that and control
Device processed 180 is separated.Controller 180 can be with execution pattern identifying processing, by the handwriting input for 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
Appropriate electric power needed for part and component.
Various embodiments described herein can be with use such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implementing.For 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
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is 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.
For 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) that is write with any appropriate programming language
Implement, software code can be stored in memorizer 160 and be executed by controller 180.
So far, mobile terminal is described according to its function.Below, for the sake of brevity, will description 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 used as showing
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be 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.
Referring now to the communication system that Fig. 2 descriptions are wherein operable to according to the mobile terminal of the present invention.
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 stations (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN)
290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link.
Back haul link can be constructed according to any one in some known interfaces, and the interface includes such as E1/T1, ATM, IP,
PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system can include multiple BSC2750 as shown in Figure 2.
Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of sensing specific direction
Each subregion that line is covered is radially away from BS270.Or, each subregion can by for diversity reception two or more
Antenna is covered.Each BS270 may be constructed such that the multiple frequency distribution of support, and each frequency distribution 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 broadcsting transmitter (BT) 295 mobile terminal operated in system
100.Broadcasting reception module 111 is arranged at mobile terminal 1 00 to receive the broadcast sent by BT295 as shown in Figure 1
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellite 300.Satellite 300 helps position multiple mobile terminals
At least one of 100.
In fig. 2, multiple satellites 300 are depicted, 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 to obtain the positioning that wants letter with satellite 300 as shown in Figure 1
Breath.Substitute GPS tracking techniques or outside GPS tracking techniques, it is possible to use can track the position of mobile terminal other
Technology.In addition, at least one gps satellite 300 can optionally or additionally process satellite dmb transmission.
Used as a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminal 1s 00
Signal.00 usual participation call of mobile terminal 1, information receiving and transmitting and other types of communication.Each of the reception of certain base station 270 is anti-
Processed in specific BS270 to link signal.The data of acquisition are forwarded to the BSC275 of correlation.BSC provides call
Resource allocation and the mobile management function of the coordination including the soft switching process between BS270.BSC275 is also by the number for receiving
According to MSC280 is routed to, which is provided for the extra route service with PSTN290 formation interfaces.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, it should be noted that the data for projection of the system point
Enjoying equipment needs to be provided with double radio channels.Fig. 3 is referred to, shares equipment 301 and multiple projector equipments including a data for projection
302.
Data for projection shares equipment 301, is connected for setting up wireless session with projector equipment 302, and transmits projection to which
Data, the data for projection include video data and voice data；
Projector equipment 302, for receiving and playing the data for projection that the data for projection shares the transmission of equipment 301.
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/or video data.
Data for projection is shared equipment 301 and is provided with wireless display device, refers to Fig. 4, and wireless display device includes：
Determining module 401, for sharing the communication quality of double radio channels of equipment and needing to connect according to the data for projection
The quantity of projector equipment is connect, the radio channel that this projection is used is determined；
Search module 402, for searching for projector equipment in the wireless join domain of the radio channel for determining；
Link block 403, for when two or more projector equipments are searched, respectively with each throwing for searching
Shadow equipment sets up wireless connection；
Transport module 404, for transmitting data for projection to each projector equipment.
In practical application, the quality of radio channel can pass through to test the flow of the radio channel, signal intensity, transmission speed
The parameter such as rate and/or frequency range is evaluated.
In an optional scheme, the determining module includes：
Comparison sub-module, for comparing the communication quality of this pair of radio channel；
Submodule is selected, according to comparative result, the radio channel for selecting use quality good；Or
The determining module also includes：
Determination sub-module, for determining the quantity of the projector equipment of this needs connection；
The selection submodule, is additionally operable to, when the quantity is more than preset value, select to use this pair of radio channel simultaneously；
The comparison sub-module, is additionally operable to, when the quantity is less than preset value, compare the communication quality of this pair of radio channel；
The selection submodule, is additionally operable to the radio channel for according to comparative result, selecting use quality good.
In practical application, the measured radio channel of matter is selected, data for projection transfer rate can be improved, it is to avoid data for projection
The problems such as playing discontinuous.The quantity of the projector equipment if necessary to access is more, then can select two radio channels all
Be used for session connection being set up with projector equipment, connected so as to avoid for all of projector equipment all focusing on a radio channel
The congestion problems for causing are connect, projection quality is improved.
In an optional scheme, this pair of radio channel can include double wifi Wireless Fidelity passages, or wifi is logical
Road, mobile network (such as 4G, 5G) passage, the combination of Bluetooth channels.
In an optional scheme, if the passage that selection is used is wifi passages, the search module 402 is additionally operable to lead to
Cross wifi Peer-To-Peers technology and search the projector equipment for nearby supporting wifi Peer-To-Peer technology.
In practical application, data for projection share the search module 402 of equipment 301 send on predefined channel detect please
Seek frame (probe request frame).Detecting claim frame includes such as reciprocity (P2P) information element (IE), P2P asterisk wildcards
The information of SSID, asterisk wildcard SSID, destination-address, device type and device id etc.
Now, projector equipment 302 is listened on predefined channel and detects claim frame.Each projector equipment can determine spy
The information matches search criterion that looks in claim frame, if it finds a match, then projector equipment 302 by describe with equipment detect please
Ask frame to be sent to data for projection and share equipment 301.
Then, search module 402 continues executing with service discovery to obtain the service supported by projector equipment 302.In service
It was found that during, GAS initial requests are sent to projector equipment 302 by search module 402.Used as response, projector equipment 302 will have
The GAS initial communications of information on services are sent to search module 402.Hereafter, link block 403 is used and is obtained from projector equipment 302
Equipment and service describing set up WFD with projector equipment 302 and be connected.
According to Wi-Fi Direct technical specifications, wifi-direct is set up with each projector equipment 302 for searching and be connected
When, also need to specify a group administrator (Group Owner) and multiple client (Client), in the present embodiment, project number
Group administrator is designated as according to equipment 301 is shared, multiple projector equipments 302 are designated as group client.Hereafter, number is projected
It is connected according to sharing equipment 301 and setting up a TCP with each projector equipment 302.
In an optional scheme, the device also includes：
Projector equipment management module, for, after wifi session connections are set up with each projector equipment, managing each with this
The session connection that sets up between 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 be each projector equipment all
An IP address is assigned with, and the corresponding relation by each projector equipment with its IP address is stored in IP lists.
Now, the transport module 404, also includes：
Acquisition submodule, for obtaining the IP address of each projector equipment；
Sending submodule, sends data for projection to each projector equipment respectively according to the IP address.
In practical application, transport module 404 can also include consulting submodule, for consulting ability with each projector equipment
Parameter, the ability parameter include that the data for projection shares the data form that end equipment and each projector equipment are supported；
Now, sending submodule, is additionally operable to execute this after success is consulted respectively to each projector equipment transmission projection number
According to the step of.
In practical application, after connection establishment, data for projection shares the Wireless links of equipment utilization bottom, currently will shield
After curtain video/audio packing, all of projector equipment is transferred in conjunction with Real-time Transport Protocol.Specifically, projection side apparatus are every default
Time (for example, 30ms) captures current screen data, is packaged into video-voice frequency flow, and sends out on-screen data according to Real-time Transport Protocol
Deliver to projector equipment 302.The media data flow comprising on-screen data for receiving is carried out caching process and is shown by projector equipment 302
Show.
In an optional scheme, the device also includes：
Entitlement management module, for, after wifi-direct session connections are set up with 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 be to data for projection point
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, the input signal of the projector equipment being initially received is responded.
Mode two：Priority is set, if receiving multiple input signals in synchronization, response highest priority or compared with
The input signal of high projector equipment.
Mode three：One projector equipment that fixes is set, 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, other modes are may also include, as long as meeting
Only allow a projector equipment that there is Reverse Turning Control to weigh at each moment.
In an optional scheme, data for projection is shared equipment 301 and can also be included：
Selecting module, for when projector equipment is searched, selecting the projection for needing to set up wifi-direct session connections
Equipment.
The wireless projection system of the embodiment of the present invention, shares equipment using the data for projection for being provided with double radio channels, can be with
When the screen prjection to one-to-many is realized with sharing, suitable radio channel is selected to realize and multiple throwings according to different needs
Wireless connection between shadow equipment, so that ensure the transmission speed of data for projection, it is to avoid the transmission congestion of projector equipment factor data is made
Into the discontinuous problem of broadcasting, 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 networks, 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 be provided with double
The data for projection of radio channel shares equipment.Fig. 5 is referred to, the method includes：
S501, shared according to the data for projection equipment double radio channels communication quality and need to connect projector equipment
Quantity, determines the radio channel that this projection is used；
S502, determine radio channel wireless join domain in search for projector equipment；
S503, when two or more projector equipments are searched, set up with each projector equipment for searching respectively
Wireless connection；
S504, data for projection is transmitted to each projector equipment.
In practical application, the quality of radio channel can pass through to test the flow of the radio channel, signal intensity, transmission speed
The parameter such as rate and/or frequency range is evaluated.
In an optional scheme, the radio channel that this projection is used is determined, including：
The communication quality of relatively this pair of radio channel；
According to comparative result, the radio channel for selecting use quality good；Or
Determine the quantity of the projector equipment of this needs connection；
If the quantity is more than preset value, select to use this pair of radio channel simultaneously；
If the quantity is less than preset value, compare the communication quality of this pair of radio channel, and according to comparative result, select to use
The measured radio channel of matter.
In practical application, the measured radio channel of matter is selected, data for projection transfer rate can be improved, it is to avoid data for projection
The problems such as playing discontinuous.The quantity of the projector equipment if necessary to access is more, then can select two radio channels all
Be used for session connection being set up with projector equipment, connected so as to avoid for all of projector equipment all focusing on a radio channel
The congestion problems for causing are connect, projection quality is improved.
In an optional scheme, this pair of radio channel can include double wifi passages, or wifi passages, mobile network
Network (such as 4G, 5G) passage, the combination of Bluetooth channels.
In an optional scheme, step S502 includes that step S601 is to step S603 in Fig. 6：
S601, data for projection are shared equipment and are sent on predefined channel and detect claim frame.
Specifically, detecting claim frame includes such as reciprocity (P2P) information element (IE), P2P asterisk wildcard SSID, asterisk wildcard
The information of SSID, destination-address, device type and device id etc.
S602, projector equipment are listened on predefined channel and detect claim frame.
S603, projector equipment determine detect information matches search criterion in claim frame with the information matches for prestoring when,
The claim frame of detecting described with equipment is sent to data for projection and shares equipment.
In an optional scheme, step S503 includes that step S604 is to step S606 part in Fig. 6
S604, data for projection are shared equipment and GAS initial requests are sent to projector equipment.
GAS initial communications with information on services are sent to data for projection and share equipment by S605, projector equipment.
S606, data for projection are shared equipment and are set up according to the equipment and service describing and projector equipment that obtain from projector equipment
WFD connects.
According to wifi Direct technical specifications, when setting up wifi-direct with each projector equipment 302 for searching and being connected,
Also need to specify a group administrator (GroupOwner) and multiple client (Client), in the present embodiment, data for projection point
Enjoy equipment 301 and be designated as group administrator, multiple projector equipments 302 are designated as group client.Hereafter, data for projection point
Enjoying equipment 301 and a TCP being set up with each projector equipment 302 be connected.
In an optional scheme, after setting up wifi session connections with each projector equipment, the method also includes：
The session connection that sets up between management and 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 be each projector equipment all
An IP address is assigned with, and the corresponding relation by each projector equipment with its IP address is stored in IP lists.
In an optional scheme, this transmits data for projection to each projector equipment respectively, including：
Obtain the IP address of each projector equipment；
Data for projection is sent to each projector equipment respectively according to the IP address.
In practical application, before data for projection is sent, the method also includes：
Consult ability parameter with each projector equipment, the ability parameter includes that the data for projection shares end equipment and each throwing
The data form that shadow equipment is supported；
Execute after success is consulted this respectively to each projector equipment transmission data for projection the step of.
In practical application, after connection establishment, data for projection shares the Wireless links of equipment utilization bottom, currently will shield
After curtain video/audio packing, all of projector equipment is transferred in conjunction with Real-time Transport Protocol.Specifically, data for projection shares equipment often
Current screen data are captured every Preset Time (for example, 30ms), be packaged into regard, audio stream, and according to Real-time Transport Protocol by screen
Data is activation is to projector equipment.
In an optional scheme, after setting up wifi session connections with each projector equipment, the method also includes：
Manage the Reverse Turning Control mandate of each projector equipment.
In the present embodiment, there is each projector equipment of multiple projector equipments, and each projector equipment can be to data for projection point
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, the input signal of the projector equipment being initially received is responded.
Mode two：Priority is set, if receiving multiple input signals in synchronization, response highest priority or compared with
The input signal of high projector equipment.
Mode three：One projector equipment that fixes is set, 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, other modes are may also include, as long as meeting
Only allow a projector equipment that there is Reverse Turning Control to weigh at each moment.
The wireless display method of the embodiment of the present invention, shares equipment using the data for projection for being provided with double radio channels, can be with
When the screen prjection to one-to-many is realized with sharing, suitable radio channel is selected to realize and multiple throwings according to different needs
Wireless connection between shadow equipment, so that ensure the transmission speed of data for projection, it is to avoid the transmission congestion of projector equipment factor data is made
Into the discontinuous problem of broadcasting, 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 networks, realizes resource-sharing.
Above by reference to the preferred embodiments of the present invention have been illustrated, not thereby limit to the interest field of the present invention.This
Art personnel, all should be at this without departing from any modification, equivalent and the improvement that is 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, it is adaptable to which the data for projection for being provided with double radio channels shares equipment, it is characterised in that described
Device includes：
Determining module, for sharing the communication quality and needs connection projection of double radio channels of equipment according to the data for projection
The quantity of equipment, determines the radio channel that this projection is used；
Search module, for searching for projector equipment in the wireless join domain of the radio channel for determining；
Link block, for when two or more projector equipments are searched, respectively with each projector equipment for searching
Set up wireless connection；
Transport module, for transmitting data for projection to each projector equipment.
2. device according to claim 1, it is characterised in that the determining module includes：
Comparison sub-module, for the communication quality of relatively described pair of radio channel；
Submodule is selected, according to comparative result, the radio channel for selecting use quality good；Or
The determining module also includes：
Determination sub-module, for determining the quantity of the projector equipment of this needs connection；
The selection submodule, is additionally operable to, when the quantity is more than preset value, select to use described pair of radio channel simultaneously；
The comparison sub-module, is additionally operable to when the quantity is less than preset value, relatively the communication quality of described pair of radio channel；
The selection submodule, is additionally operable to the radio channel for according to comparative result, selecting use quality good.
3. device according to claim 1 and 2, it is characterised in that described pair of radio channel includes double wifi Wireless Fidelitys
Passage.
4. device according to claim 3, it is characterised in that described device also includes：
Projector equipment management module, for the session connection set up between management and each projector equipment and each projector equipment
IP address.
5. device according to claim 3, it is characterised in that described device also includes：
Entitlement management module, for managing the Reverse Turning Control mandate of each projector equipment.
6. a kind of wireless projection system, it is characterised in that the system includes：
Data for projection shares equipment, and which includes the wireless display device as described in any one of claim 1 to 5, for at least
Wireless session connection set up by one projector equipment, and transmits data for projection to which, and the data for projection includes video data and sound
Frequency evidence；
At least one projector equipment, for receiving and playing the data for projection that the data for projection shares device transmission.
7. a kind of wireless display method, it is adaptable to which the data for projection for being provided with double radio channels shares equipment, it is characterised in that described
Method includes：
Share the communication quality of double radio channels of equipment and the quantity for needing to connect projector equipment according to the data for projection, really
The radio channel that this projection fixed is used；
Projector equipment is searched in the wireless join domain of the radio channel for determining；
When two or more projector equipments are searched, set up with each projector equipment for searching respectively and be wirelessly connected；
Data for projection is transmitted to each projector equipment.
8. method according to claim 7, it is characterised in that share double channel radios of equipment according to the data for projection
The communication quality in road and the quantity for needing to connect projector equipment, determine the radio channel that this projection is used, including：
The communication quality of relatively described pair of radio channel；
According to comparative result, the radio channel for selecting use quality good；Or
Determine the quantity of the projector equipment of this needs connection；
If the quantity is more than preset value, select to use described pair of radio channel simultaneously；
If the quantity is less than preset value, the relatively communication quality of described pair of radio channel, and according to comparative result, selects to use
The measured radio channel of matter.
9. the method according to claim 7 or 8, it is characterised in that described pair of radio channel includes double wifi passages.
10. method according to claim 9, it is characterised in that methods described also includes：
The session connection that sets up between management and each projector equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610885786.9A CN106507072A (en) | 2016-10-11 | 2016-10-11 | A kind of wireless display device, system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885786.9A CN106507072A (en) | 2016-10-11 | 2016-10-11 | A kind of wireless display device, system and method |
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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 |
| CN110493756A (en) * | 2019-07-26 | 2019-11-22 | 维沃移动通信有限公司 | Throw screen method and 5G terminal |
| CN111182614A (en) * | 2020-01-08 | 2020-05-19 | 华为技术有限公司 | Method and device for establishing network connection and electronic equipment |
| CN111447691A (en) * | 2020-03-30 | 2020-07-24 | 湖南新亚胜光电股份有限公司 | L ED intelligent display screen multimode wireless communication method |
| CN112822472A (en) * | 2017-06-19 | 2021-05-18 | 西安全星智能电子有限责任公司 | Projector control method, system and computer readable storage medium |
| CN113612979A (en) * | 2021-07-26 | 2021-11-05 | 深圳市炬力北方微电子有限公司 | Projection method, electronic equipment and computer equipment |
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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 |
| CN112822472A (en) * | 2017-06-19 | 2021-05-18 | 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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| CN110493756B (en) * | 2019-07-26 | 2022-08-02 | 维沃移动通信有限公司 | Screen projection method and 5G terminal |
| CN111182614A (en) * | 2020-01-08 | 2020-05-19 | 华为技术有限公司 | Method and device for establishing network connection and electronic equipment |
| CN111447691A (en) * | 2020-03-30 | 2020-07-24 | 湖南新亚胜光电股份有限公司 | L ED intelligent display screen multimode wireless communication method |
| CN113612979A (en) * | 2021-07-26 | 2021-11-05 | 深圳市炬力北方微电子有限公司 | Projection method, electronic equipment and computer equipment |
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