CN105578227A - Multi-screen projection control method and system and terminal device - Google Patents

Multi-screen projection control method and system and terminal device Download PDF

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Publication number
CN105578227A
CN105578227A CN201510896486.6A CN201510896486A CN105578227A CN 105578227 A CN105578227 A CN 105578227A CN 201510896486 A CN201510896486 A CN 201510896486A CN 105578227 A CN105578227 A CN 105578227A
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CN
China
Prior art keywords
equipment
screen
screen data
viewing area
discovery
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Granted
Application number
CN201510896486.6A
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Chinese (zh)
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CN105578227B (en
Inventor
邓敏
王佰祥
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Nubia Technology Co Ltd
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Nubia Technology Co Ltd
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Priority to CN201510896486.6A priority Critical patent/CN105578227B/en
Publication of CN105578227A publication Critical patent/CN105578227A/en
Priority to PCT/CN2016/105522 priority patent/WO2017097088A1/en
Application granted granted Critical
Publication of CN105578227B publication Critical patent/CN105578227B/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/6437—Real-time Transport Protocol [RTP]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • 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
    • 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
    • H04N21/41—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
    • H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • 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
    • H04N21/43—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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44227—Monitoring of local network, e.g. connection or bandwidth variations; Detecting new devices in the local network
    • 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
    • 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
    • H04N9/3173—Constructional details thereof wherein the projection device is specially adapted for enhanced portability

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Information Transfer Between Computers (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The invention discloses a multi-screen projection control method and system and a terminal device. The method comprises the following steps: sending a discovery request from a first device; receiving one or more discovery responses at the first device, wherein the discovery responses are sent from one or more second devices with response to the received discovery request; establishing WFD connection between the first device and the one or more second devices; and transmitting screen data of the first device to the one or more second devices based on the established WFD connection. The beneficial effects are that one-to-many screen projection and sharing can be realized; through the WFD network, dependence on sites can be reduced; and the multi-screen projection control method and system and the terminal device can be applied to scenes of special demands, such as multimedia conference rooms or audio-video function classrooms, realize quick WFD network establishment and realize resource sharing.

Description

Multi-screen method for controlling projection, system and terminal equipment
Technical field
The present invention relates to communication technical field, more particularly, relate to a kind of multi-screen method for controlling projection, system and terminal equipment.
Background technology
Along with popularizing fast of smart machine, making full use of the interaction between smart machine equipment, realize interpersonal exchange and cooperation, is the main trend realizing exchanging diversification at present.
Wi-Fidisplay network is that the Wi-Fi equipment that enables of Wi-Fi Alliance suggestion is connected to each other with Peer and does not participate in the network system of home network, intraoffice network or hot spot networks.
The screen one to one that the existing Wi-Fidisplay based on P2P (WFD) technology can realize equipment room is shared.
But screen of the prior art is shared and is only limitted to sharing of " one to one " formula, it is a kind of unidirectionally to share, passive interchange.
Therefore, prior art existing defects needs to improve.
Summary of the invention
The technical problem to be solved in the present invention is, the above-mentioned screen for prior art is shared and is only limitted to sharing of " one to one " formula, and it is a kind of unidirectional defect shared, and provides a kind of multi-screen method for controlling projection, system and terminal equipment.
The technical solution adopted for the present invention to solve the technical problems is:
First aspect, provides a kind of multi-screen method for controlling projection, comprising:
The request of discovery is sent from the first equipment;
Receive one or more discoverys response at described first equipment place, describedly find that response is in response to received described and finds request and from one or more second equipment transmission;
Set up WFD at the first equipment with one or more second equipment room to be connected;
The transmission of on-screen data is carried out at the first equipment and one or more second equipment room.
In one embodiment, described discovery request is WFD discovery request; Described discovery response is WFD discovery response.
In one embodiment, the one or more process service of described first device start, to process the screen data transmission process with described one or more second equipment room respectively.
In one embodiment, described first equipment is each the distribution IP address in described one or more second equipment, and is stored in an IP list in the IP address of distribution and the corresponding relation of the second equipment.
In one embodiment, described method also comprises:
The on-screen data of any one transmission in described one or more second equipment self is to described first equipment;
Described first equipment receives and shows the on-screen data received.
In one embodiment, described method also comprises:
The on-screen data received, according to described IP list, by interprocess communication, is sent to other second equipment by described first equipment.
In one embodiment, described method also comprises:
The input signal detected is sent to described first equipment by any one in described one or more second equipment;
Described first equipment performs corresponding operation according to described input signal.
In one embodiment, described input signal comprises coordinate figure and the input duration of the input point after conversion;
Described conversion comprises:
The abscissa of input point is converted to the ratio of abscissa and the first preset value;
The ordinate of input point is converted to the ratio of ordinate and the second preset value.
In one embodiment, described second equipment comprises input equipment;
Described first preset value is the width of input equipment; Described second preset value is the length of input equipment.
In one embodiment, each in described one or more second equipment comprises a display screen respectively;
Described display screen comprises the first viewing area and the second viewing area;
Described method also comprises: the on-screen data received is shown by the first viewing area or the second viewing area by described one or more second equipment.
Second aspect, provides a kind of terminal equipment, comprising:
Display unit;
Detection linkage unit, for sending the request of discovery, and finding response for the treatment of reception, being connected to set up WFD with one or more second equipment;
Control unit, sends to described one or more second equipment for the on-screen data carrying out controlling to make described display unit show by detection linkage unit.
In one embodiment, described detection linkage unit is also for receiving on-screen data;
Described control unit also controls to make display unit show the on-screen data received for carrying out.
In one embodiment, described display unit comprises the first viewing area and the second viewing area;
The described on-screen data received is by described first viewing area or the display of the second viewing area.
In one embodiment, described detection linkage unit is also for receiving any one input signal sent in described one or more second equipment;
Described control unit is also for performing corresponding operation according to described input signal;
Wherein, each in described one or more second equipment includes an input equipment, for producing described input signal according to the operation of user.
The third aspect, provides a kind of multi-screen projection control system, comprising:
First equipment, for sending the request of discovery;
One or more second equipment, for sending the described discovery response finding request in response to having received;
Described first equipment is also connected for setting up WFD according to described discovery response with described one or more second equipment room, to carry out the transmission of on-screen data with described one or more second equipment room.
In one embodiment, described first equipment also for starting one or more process service, to process the screen data transmission process with described one or more second equipment room respectively.
In one embodiment, the IP address of distribution and the corresponding relation of the second equipment also for distributing an IP address for each in described one or more second equipment, and are stored in an IP list by described first equipment.
In one embodiment, the on-screen data of any one transmission in described one or more second equipment self is to described first equipment;
The on-screen data received also for receiving and showing the on-screen data received, and for according to described IP list, is sent to other the second equipment by interprocess communication by described first equipment.
In one embodiment, the input signal detected is sent to described first equipment by any one in described one or more second equipment;
Described first equipment performs corresponding operation according to described input signal.
In one embodiment, each in described one or more second equipment comprises a display screen respectively;
Described display screen comprises the first viewing area and the second viewing area;
The on-screen data of reception is shown by the first viewing area or the second viewing area by described one or more second equipment.
Implement a kind of multi-screen method for controlling projection of the present invention, system and terminal equipment, there is following beneficial effect: can realize to the screen prjection of one-to-many with share, by WFD network, the dependence to place can be reduced; Can be applicable to, in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom, realize fast assembling WFD network, realize resource-sharing; And can multi-screen interactive be realized, by role switching, arbitrary equipment all can be shared; On the other hand, shown by split screen, convenient management the machine interface, improves Consumer's Experience; And utilize very general terminal equipment to realize multi-screen interactive, greatly reduce cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the hardware configuration schematic diagram of the terminal equipment of one embodiment of the invention;
Fig. 2 is the search routine figure of the projection side equipment of one embodiment of the invention;
Fig. 3 is the schematic network structure that the realized multi-screen projection of one embodiment of the invention controls;
Fig. 4 is the schematic diagram that the multiple process of projection side opening of device of one embodiment of the invention carries out screen data transmission control;
Fig. 5 is that the receiver side equipment in one embodiment of the invention receives on-screen data and the schematic diagram of display;
Fig. 6 is the schematic diagram that the receiver side equipment in one embodiment of the invention controls projection side equipment;
Fig. 7 is the control effects schematic diagram shown in Fig. 6;
Fig. 8 is the display effect schematic diagram in one embodiment of the invention after receiver side employing split screen;
Fig. 9 switches to the on-screen data after projection side equipment to send effect schematic diagram as the equipment B of receiver side in one embodiment of the invention;
Figure 10 is the interactive interface schematic diagram of the terminal equipment of one embodiment of the invention;
Figure 11 is the flow chart of the multi-screen method for controlling projection of one embodiment of the invention;
Figure 12 is the flow chart of the multi-screen method for controlling projection of another embodiment of the present invention;
Figure 13 is the multi-screen projection Control system architecture schematic diagram of one embodiment of the invention.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
Embodiment 1
See Fig. 1, it is the hardware configuration schematic diagram of the terminal equipment of the embodiment of the present invention.
The terminal equipment 100 of the embodiment of the present invention comprises: detection linkage unit 101, control unit 102, display unit 103.
When terminal equipment 100 is as projection side (Source end):
Detection linkage unit 101 finds for actuating equipment, serves available adjacent miscellaneous equipment to search for Wi-Fidisplay.When finding miscellaneous equipment, detection linkage unit 101 is undertaken alternately by RTSP agreement and miscellaneous equipment, capability negotiation, is connected with miscellaneous equipment to make equipment 100.
Basic operation in control unit 102 control terminal 100.Concrete, the content (on-screen data) that control unit 102 carries out controlling display unit 103 is shown is sent to miscellaneous equipment based on RTP by detection linkage unit 101.RTP and RTP.By display unit 103, control unit 102 determines that input signal form from user is with according to input signal control terminal 100.Such as, according to input signal initiating equipment search etc.
When terminal equipment 100 is as receiver side (Sink end):
Detection linkage unit 101, also for connecting with the equipment of projection side, receives on-screen data.Control unit 102 also controls to make display unit 103 show the on-screen data received for carrying out.
Be the search routine figure of the projection side equipment of the embodiment of the present invention see Fig. 2.The search routine of the embodiment of the present invention comprises:
Device discovery procedure: projection side equipment performs the device discovery for finding the adjacent external miscellaneous equipment supporting Wi-Fidisplay.
Equipment connection step: when arbitrary miscellaneous equipment is found, projection side equipment arranges the connection with this equipment, carries out exchange capacity and performs negotiation.
Play step: equipment utilization RTSP agreement is carried out capability negotiation and mates relevant parameter, after RTSP play command, first the current screen data of projection side equipment are packaged into video-voice frequency flow, then directly this audio stream bag is sent to receiver side equipment through Real-time Transport Protocol, the on-screen data of projection side is sent to receiver side by stream type (audio/video (AV) stream).RTSP and RTP, belong to an application layer protocol in ICP/IP protocol system, and primary responsibility capacity of equipment is consulted.
In the embodiment of the present invention, in order to realize multi-screen interactive, relative to a projection side equipment, there is one or more receiver side equipment.It is the schematic network structure of the realized multi-screen projection control of the embodiment of the present invention see Fig. 3.
Network 1000 comprises: a projection side equipment 200 and at least one receiver side equipment 300.The hardware configuration of projection side equipment 200 and receiver side equipment 300 can refer to shown in above-mentioned Fig. 1.
Network 1000 has the identical implication of point-to-point with Wi-Fi (P2P) network.Projection side equipment in network 1000 and receiver side equipment are directly interconnected by Wi-Fidirect, and without the need to using WLAN (WLAN) access point (AP) etc.
Concrete, projection side equipment 200 actuating equipment in network 1000 environment finds to find receiver side equipment 300.During device discovery, projection side equipment 200 sends and detects claim frame (proberequestframe) on predefined channel.Detect the information that claim frame comprises such as equity (P2P) information element (IE), P2P asterisk wildcard SSID, asterisk wildcard SSID, destination-address, device type and device id and so on.Receiver side equipment 300 in network 1000 environment is listened to and is detected claim frame on predefined channel.Each equipment determines the information matches search criterion detected in claim frame.If the coupling of discovery, then the claim frame of detecting with device description is sent to projection side equipment 200 by receiver side equipment 300.
After device discovery completes, projection side equipment 200 performs the service that service discovery is supported to obtain receiver side equipment 300.During service discovery, GAS initial request is sent to receiver side equipment 300 by projection side equipment 200.Responsively, the GAS initial communication with information on services is sent to projection side equipment 200 by receiver side equipment 300.After this, projection side equipment 200 uses the equipment obtained from receiver side equipment 300 to set up WFD to be connected with service describing with receiver side equipment 300, and the equipment connection namely in Fig. 2 is set up.
Should be understood that each the receiver side equipment 300 in the embodiment of the present invention sets up the connection with projection side equipment all in the manner described above.Thus, projection side equipment 200 and multiple receiver side equipment 300 can be called a group (Group).Projection side equipment 300 is designated as the group owner (GO).Receiver side equipment 300 is as group client.
See Fig. 4, device A is projection side equipment, and equipment B, equipment C and equipment D are receiver side equipment.Equipment B, equipment C, equipment D are connected with device A by Wireless.
Device A starts multiple process service, and each process manages and the communicating of a receiver side equipment respectively.Such as: the communication connection data of subprocess 1 alignment processing equipment B, the communication connection data of subprocess 2 alignment processing equipment C, the communication connection data of subprocess 3 alignment processing equipment D.In addition, device A also starts a parent process and is used for carrying out monitoring and connects.
In an embodiment of the present invention, each process is transmitted according to WFD agreement.
In order to realize the communication link of bottom, device A distributes an IP address for each equipment, and is stored in an IP list by the corresponding relation of each receiver side equipment and its IP address.
In an embodiment of the present invention, by IP list, any equipment be connected with device A can have access to other equipment by this IP list, set up TCP/IP to connect, realize two-way communication, like this, on-screen data can be passed to other equipment by TCP/IP link by any equipment.Thus, the screen that can realize equipment room is thrown mutually.
Concrete, the screen data transmission process between whole group comprises:
(1) connection establishment
At bottom link, the discovery procedure of the receiver side equipment that projection side equipment finds according to above-mentioned execution, monitoring discovery is from the connection request of miscellaneous equipment.And according to the equipment found, select the equipment of specifying to connect.When connecting with multiple (two or more) equipment, projection side equipment creates multiple subprocess and processes bidirectional data transfers between each equipment respectively.
(2) screen data transmission
After connection establishment, projection side equipment, according to the process service created during connection establishment, utilizes the Wireless link of bottom, is packed by current screen video/audio, is transferred to all receiver side equipment in conjunction with Real-time Transport Protocol.Concrete, projection side equipment captures current screen data every Preset Time (such as, 30ms), is packaged into video-voice frequency flow, and according to Real-time Transport Protocol, on-screen data is sent to receiver side equipment.
The display of the on-screen data of receiver side equipment primary responsibility projection side device transmission.The media data flow comprising on-screen data received is carried out caching process and shows by receiver side equipment.See Fig. 5, after on-screen data starts transmission, the on-screen data of equipment B, C and D receiving equipment A also shows.
In an embodiment of the present invention, projection side equipment manages the list of devices connected, and to ensure information security, and prevents unrelated equipment from adding, and goes back adding or the exiting of equipment in link of ALARA Principle midway new equipment.
The multi-screen method for controlling projection of the embodiment of the present invention, can realize to the screen prjection of one-to-many with share, by WFD network, the dependence to place can be reduced; Can be applicable in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom, fast assembling WFD network, realizes resource-sharing.
Embodiment 2
In this embodiment, receiver side equipment, except can showing the on-screen data received, can also control projection side equipment.
Concrete, receiver side equipment also comprises: input equipment 104, produces input signal, and input signal is transferred to control unit for the operation according to user.Input signal comprises the information such as coordinate, duration of input point.
When receiver side equipment receives and shows the on-screen data of projection side equipment, control unit detects the input signal produced by input equipment.
In one embodiment, in order to make projection side equipment correctly can identify input operation, control unit is changed according to the coordinate of the physical parameter of input equipment to the input point comprised in input signal.Such as, input equipment is width is W0, is highly the touch-screen of H0, input point coordinate is (X0, Y0), then will be (X0/W0 after input point Coordinate Conversion, Y0/H0), namely it has been converted into the ratio of shared input equipment on Width and length direction.In addition, also can change according to other modes.
The input signals such as the coordinate after control unit controls conversion and duration send to projection side equipment by detection linkage unit.After the input signal that projection side equipment receives, be the coordinate of the input equipment being adapted to projection side equipment by the Coordinate Conversion of input point.Such as, if projection side equipment is width is W1, it is highly the touch-screen of H1, the coordinate received is (X0/W0, Y0/H0), then the coordinate of the input point of receiver side equipment corresponds to the coordinate of projection side equipment is ((X0/W0) × W1, (Y0/H0) × H1).Projection side equipment can identify input point when the input point of receiver side equipment corresponds to projection side equipment according to this coordinate, and performs corresponding operation according to input point.
See Fig. 6, if controlled device A by equipment B, in deviceb, click 600 places, then input point is 600.When being converted to the input point of device A, corresponding input point is 601.If the order of this input point 601 correspondence is: open " content 1 ", then, when user operates in equipment B, " content 1 " in device A is unlocked, see design sketch as shown in Figure 7.
Should be understood that due in the embodiment of the present invention have multiple receiver side equipment, and it all can control to projection side equipment.Therefore, the process carrying out control logic is needed.Concrete, following mode can be adopted:
Mode one: projection side equipment, according to sequential, responds the input signal of the receiver side equipment received at first.
Mode two: arrange priority, if receive multiple input signal at synchronization, then responds the input signal of the high or the highest receiver side equipment of priority.
Mode three: a fixing projection side equipment is set, only responds its input signal.
Should be understood that the embodiment of the present invention is not limited to three kinds of above-mentioned modes, also can comprise other mode.
This embodiment of the present invention, sends projection side equipment to by the input signal received by receiver side equipment, is undertaken mating rear response by projection side equipment, perform corresponding operation, the control of receiver side equipment to projection side equipment can be realized, improve interactive controlling efficiency, promote Consumer's Experience.
Embodiment 3
On the basis of above-described embodiment 1 or 2, in order to make receiver side equipment receive and the on-screen data of display projection side equipment time, can also freely controlling the machine be realized, adopt the mode of split screen to distinguish display screen data and the machine interface.
Should understand, split screen is divided into the first viewing area and the second viewing area by the display screen of receiver side equipment, and accordingly input equipment being divided into the input area corresponding with the first viewing area and the input area corresponding with the second viewing area, this is prior art, does not repeat them here.This embodiment of the present invention, on the basis of split screen, makes the arbitrary viewing area in split screen for showing the on-screen data received.
See Fig. 8, after adopting split screen display, equipment B, equipment C and equipment D all have employed arbitrary viewing area for showing the on-screen data of the device A received, and another viewing area is for showing the interface of the machine.Thus, freely controlling of most the machine can be realized by the machine interface, and in order to realize the control to the machine, and screen prjection need not be interrupted.
Should understand, after receiver side equipment adopts split screen mode, to the control of projection side equipment, then first judge that input point is the viewing area being positioned at place, the machine interface to realize receiver side equipment in above-described embodiment 2, or the viewing area at on-screen data display place.If in the viewing area at on-screen data place, be then sent to projection side equipment after being changed by the coordinate of input point.Concrete, this conversion can comprise:
First, the coordinate of input point is expanded according to split screen ratio.Such as, if the display screen of receiver side equipment carries out upper and lower split screen, and the first viewing area and the second viewing area are equal sizes, if then the coordinate of touch point is (xc, yc), are then carried out by its coordinate expanding as (2 × xc, 2 × yc).
Then, be send to projection side equipment after the ratio of shared input equipment on Width and length direction by the Coordinate Conversion after expansion.
Thus, projection side equipment can realize correctly identifying input operation, and responds.
By this embodiment of the invention, shown by split screen, convenient management the machine interface, improves Consumer's Experience.
Embodiment 4
On the basis of above-described embodiment 1,2 or 3, receiver side equipment is converted to projection side equipment, on-screen data to be shared with other member by the mode switched.
Concrete, if a certain receiver side equipment needs the on-screen data of oneself to be shared with other members, then first suspend and receive on-screen data, then utilize the communication link of bottom to be sent to by on-screen data projection side equipment to show.
Screen data transmission, by interprocess communication, is given other receiver side equipment by projection side equipment.Thus, other member be shared with by the on-screen data of arbitrary receiver side equipment in group is realized.Shown in Figure 9 is an embodiment, and on-screen data is sent to device A after switching to projection side equipment by equipment B, device A display screen data, and by process by communication send to equipment C and equipment D to show the on-screen data of equipment B.Thus, equipment B achieves the projection of self on-screen data.
In one embodiment, a switching key (can be virtual key, also can be entity physical button) can being set, the conversion of role can be realized by operating this button.Concrete, when operation push-button carries out role transforming, suspend reception or the transmission of on-screen data, after role transforming success, just proceed reception or the transmission of on-screen data.
The embodiment of the present invention, on the basis of above-described embodiment, when communicating by keeping link, being carried out role switching, not only can be realized the switching that on-screen data is shared, also can shorten the switching time in screen throwing process mutually, effectively raise efficiency and participation.
Embodiment 5
The embodiment of the present invention also provides a kind of terminal equipment, and it has hardware configuration as shown in Figure 1.Concrete, this terminal equipment comprises: display unit; Detection linkage unit, for sending the request of discovery, and finding response for receiving, being connected to set up WFD with one or more second equipment; Control unit, sends to one or more second equipment for the on-screen data carrying out controlling to make display unit show by detection linkage unit.
In one embodiment, linkage unit is detected also for receiving on-screen data; Control unit also controls to make display unit show the on-screen data received for carrying out.In one embodiment, display unit comprises the first viewing area and the second viewing area; The on-screen data received is by the first viewing area or the display of the second viewing area.
In one embodiment, linkage unit is detected also for receiving any one input signal sent in one or more second equipment; Control unit is also for performing corresponding operation according to input signal; Wherein, each in one or more second equipment includes an input equipment, produces input signal for the operation according to user.
See Figure 10, in an embodiment of the present invention, terminal equipment can be used as projection side equipment, also can be used as receiver side equipment.When opening screen prjection function, user sees the interactive interface as shown in Figure 10 left side by display unit.When user selects " projected picture " by input equipment, interactive interface redirect is the interface of upside, the right, and this terminal equipment is namely as projection side equipment, and actuating equipment finds step, finds the adjacent external miscellaneous equipment supporting Wi-Fidisplay.When miscellaneous equipment is found, i.e. display device list, according to the selection of user, connects with the subscriber equipment selected, utilizes RTSP carry out exchange capacity and perform negotiation.After connection establishment, the on-screen data of projection side equipment, by after RTSP play command, is directly sent to receiver side equipment by terminal equipment; When receiving the response of receiver side, the audio/video (AV) started for mirror image flows, and the on-screen data of projection side is sent to receiver side equipment by stream type.
When user selects " reception picture " by input equipment, terminal equipment, as receiver side equipment, waiting side to be projected to initiate to invite, when receiving invitation, after namely connecting with projection side, can receive the on-screen data that projection side sends.
The terminal equipment of the embodiment of the present invention, can realize to the screen prjection of one-to-many with share, by WFD network, the dependence to place can be reduced; Can be applicable to, in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom, realize fast assembling WFD network, realize resource-sharing; And can multi-screen interactive be realized, by role switching, arbitrary equipment all can be shared; On the other hand, shown by split screen, convenient management the machine interface, improves Consumer's Experience; And utilize very general terminal equipment to realize multi-screen interactive, greatly reduce cost.
Embodiment 6
It is the flow chart of the multi-screen method for controlling projection of one embodiment of the invention see Figure 11.The multi-screen method for controlling projection of the embodiment of the present invention comprises the following steps:
S1, from first equipment send find request.This discovery request is that WFD finds request.
S2, receive one or more discoverys at the first equipment place and respond.Find response to be in response to the discovery request that received and send from one or more second equipment.This discovery response is WFD discovery response.
S3, the first equipment of setting up are connected with the WFD of one or more second equipment room.The one or more process service of first device start, to process the screen data transmission process with one or more second equipment room respectively.In one embodiment, the first equipment is each the distribution IP address in one or more second equipment, and is stored in an IP list in the IP address of distribution and the corresponding relation of the second equipment.
S4, based on set up WFD connect, the on-screen data of the first equipment is transferred to one or more second equipment respectively.
Should be understood that the first equipment is equivalent to projection side equipment, the second equipment is equivalent to receiver side equipment.Under certain conditions, the first equipment can be exchanged into the second equipment and is namely converted to receiver side equipment, and the second equipment can be exchanged into the first equipment and is namely converted to projection side equipment, follow-uply will be described to such conversion.
In one embodiment, multi-screen method for controlling projection also comprises: at the first equipment place, receives any one on-screen data of self sent in one or more second equipment; First equipment receives and shows the on-screen data received.In one embodiment, the on-screen data received, also according to IP list, by interprocess communication, is sent to other second equipment by the first equipment.Thus, receiver side equipment can be realized and be converted to projection side equipment, realize the flexible switching of role.In certain embodiments, a switching key (can be virtual key, also can be entity physical button) can being set, the conversion of role can be realized by operating this button.Concrete, when operation push-button carries out role transforming, suspend reception or the transmission of on-screen data, after role transforming success, just proceed reception or the transmission of on-screen data.
In one embodiment, multi-screen method for controlling projection also comprises: receive any one input signal detected in one or more second equipment at the first equipment place; First equipment performs corresponding operation according to input signal.Input signal comprises coordinate figure and the input duration of the input point after conversion.This conversion comprises: the ratio abscissa of input point being converted to abscissa and the first preset value; The ordinate of input point is converted to the ratio of ordinate and the second preset value.Wherein, the first preset value is the width of input equipment; Second preset value is the length of input equipment.In certain embodiments, input equipment can be touch-screen, and it comprises touch panel and touch controller.In addition, input equipment also can be non-touch input equipment (such as, infrared input equipment etc.), key-press input equipment etc.
In one embodiment, each in one or more second equipment comprises a display screen respectively.Display screen comprises the first viewing area and the second viewing area, thus, the on-screen data received can be shown by the first viewing area or the second viewing area, and another viewing area is for showing the interface of self.Thus can realize manipulating equipment of itself while reception on-screen data.
Should be understood that described in above-mentioned enforcement 1-4 realize principle and details is all applicable to this embodiment.
The multi-screen method for controlling projection of the embodiment of the present invention, can realize to the screen prjection of one-to-many with share, by WFD network, the dependence to place can be reduced; Can be applicable to, in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom, realize fast assembling WFD network, realize resource-sharing; And can multi-screen interactive be realized, by role switching, arbitrary equipment all can be shared; On the other hand, shown by split screen, convenient management the machine interface, improves Consumer's Experience; And utilize very general terminal equipment to realize multi-screen interactive, greatly reduce cost.
Embodiment 7
Be the flow chart of the multi-screen method for controlling projection of another embodiment of the present invention see Figure 12, it comprises the following steps:
S11, from first equipment send find request;
S12, receive one or more discoverys response at the first equipment place, find that response is in response to the discovery request that received and from one or more second equipment transmission;
S13, the first equipment of setting up are connected with the WFD of one or more second equipment room;
S14, to connect based on the WFD set up, receive any one on-screen data of self sent in one or more second equipment at the first equipment place, and give other the second equipment by the screen data transmission of reception.
Concrete, start one or more process service at the first equipment place, and be each the distribution IP address in one or more second equipment, and the IP address of distribution and the corresponding relation of the second equipment are stored in an IP list; The on-screen data received, according to IP list, by interprocess communication, is sent to other second equipment by the first equipment.
Should be understood that described in above-mentioned enforcement 1-4 realize principle and details is all applicable to this embodiment.
The multi-screen method for controlling projection of the embodiment of the present invention, can receive the on-screen data that miscellaneous equipment sends, and be shared with miscellaneous equipment at the first equipment place, the screen prjection realizing one-to-many with share, by WFD network, the dependence to place can be reduced; Can be applicable to, in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom, realize fast assembling WFD network, realize resource-sharing; And can multi-screen interactive be realized, by role switching, arbitrary equipment all can be shared; On the other hand, shown by split screen, convenient management the machine interface, improves Consumer's Experience; And utilize very general terminal equipment to realize multi-screen interactive, greatly reduce cost.
Embodiment 8
See Figure 13, the embodiment of the present invention also provides a kind of multi-screen projection control system.This system comprises:
First equipment 700, for sending the request of discovery.
One or more second equipment 701, responds for the discovery sent in response to the discovery request received.
First equipment 700 also for according to discovery response with set up WFD between one or more second equipment 701 and be connected, to carry out the transmission of on-screen data between one or more second equipment 701.
First equipment 700 also for starting one or more process service, with the screen data transmission process processed respectively and between one or more second equipment 701.
The IP address of distribution and the corresponding relation of the second equipment also for distributing an IP address for each in one or more second equipment 701, and are stored in an IP list by the first equipment 700.
The on-screen data of any one transmission in one or more second equipment 701 self is to the first equipment.The on-screen data received also for receiving and showing the on-screen data received, and for according to IP list, is sent to other the second equipment 701 by interprocess communication by the first equipment 700.
The input signal detected is sent to the first equipment 700 by any one in one or more second equipment 701; First equipment 700 performs corresponding operation according to input signal.
Each in one or more second equipment 701 comprises a display screen respectively; Display screen comprises the first viewing area and the second viewing area; The on-screen data of reception is shown by the first viewing area or the second viewing area by one or more second equipment.
Should be understood that described in above-mentioned enforcement 1-4 realize principle and details is all applicable to this embodiment.
The multi-screen projection control system of the embodiment of the present invention, can realize to the screen prjection of one-to-many with share, by WFD network, the dependence to place can be reduced; Can be applicable to, in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom, realize fast assembling WFD network, realize resource-sharing; And can multi-screen interactive be realized, by role switching, arbitrary equipment all can be shared; On the other hand, shown by split screen, convenient management the machine interface, improves Consumer's Experience; And utilize very general terminal equipment to realize multi-screen interactive, greatly reduce cost.
In describing the invention, it is to be appreciated that term " first ", " second " etc. are only for describing object, and instruction or hint relative importance can not be interpreted as.In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
Should be understood that the terminal equipment of the embodiment of the present invention, the first equipment and the second equipment all can be implemented in a variety of manners.Such as, the equipment described in the present invention can comprise the such as mobile device of mobile phone, mobile phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP (portable media player), guider etc. and the permanent plant of such as digital TV, desktop computer etc.
In flow chart or any process otherwise described in an embodiment of the present invention or method describe and can be understood to, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by those skilled in the art described in embodiments of the invention.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.

Claims (22)

1. a multi-screen method for controlling projection, is characterized in that, comprising:
The request of discovery is sent from the first equipment;
Receive one or more discoverys response at described first equipment place, describedly find that response is in response to received described and finds request and from one or more second equipment transmission;
Set up described first equipment to be connected with the WFD of described one or more second equipment room;
WFD based on described foundation connects, and the on-screen data of described first equipment is transferred to described one or more second equipment respectively.
2. multi-screen method for controlling projection according to claim 1, is characterized in that, described discovery request is WFD discovery request; Described discovery response is WFD discovery response.
3. multi-screen method for controlling projection according to claim 1, is characterized in that, starts one or more process service at described first equipment place, to process the screen data transmission process with described one or more second equipment room respectively.
4. multi-screen method for controlling projection according to claim 3, it is characterized in that, be each the distribution IP address in described one or more second equipment at described first equipment place, and the IP address of distribution and the corresponding relation of the second equipment are stored in an IP list.
5. multi-screen method for controlling projection according to claim 4, is characterized in that, described method also comprises:
At described first equipment place, receive any one on-screen data of self sent in described one or more second equipment; And
The on-screen data received is shown at described first equipment place.
6. multi-screen method for controlling projection according to claim 5, is characterized in that, described method also comprises:
The on-screen data received, according to described IP list, by interprocess communication, is sent to other second equipment by described first equipment.
7. multi-screen method for controlling projection according to claim 1, is characterized in that, described method also comprises:
Any one input signal detected in described one or more second equipment is received at described first equipment place;
Described first equipment performs corresponding operation according to described input signal.
8. multi-screen method for controlling projection according to claim 7, is characterized in that, described input signal comprises coordinate figure and the input duration of the input point after conversion;
Described conversion comprises:
The abscissa of input point is converted to the ratio of abscissa and the first preset value;
The ordinate of input point is converted to the ratio of ordinate and the second preset value.
9. multi-screen method for controlling projection according to claim 8, is characterized in that, described second equipment comprises input equipment;
Described first preset value is the width of input equipment; Described second preset value is the length of input equipment.
10. multi-screen method for controlling projection according to claim 1, is characterized in that, each in described one or more second equipment comprises a display screen respectively;
Described display screen comprises the first viewing area and the second viewing area;
Described method also comprises: the on-screen data received is shown by the first viewing area or the second viewing area by described one or more second equipment.
11. 1 kinds of terminal equipments, is characterized in that, comprising:
Display unit;
Detection linkage unit, for sending the request of discovery, and finding response for receiving, being connected to set up WFD with one or more second equipment;
Control unit, sends to described one or more second equipment for the on-screen data carrying out controlling to make described display unit show by detection linkage unit.
12. terminal equipments according to claim 11, is characterized in that, described detection linkage unit is also for receiving on-screen data;
Described control unit also controls to make display unit show the on-screen data received for carrying out.
13. terminal equipments according to claim 12, is characterized in that, described display unit comprises the first viewing area and the second viewing area;
The described on-screen data received is by described first viewing area or the display of the second viewing area.
14. terminal equipments according to claim 11, is characterized in that, described detection linkage unit is also for receiving any one input signal sent in described one or more second equipment;
Described controller is also for performing corresponding operation according to described input signal;
Wherein, each in described one or more second equipment includes an input equipment, for producing described input signal according to the operation of user.
15. 1 kinds of multi-screen projection control system, is characterized in that, comprising:
First equipment, for sending the request of discovery;
One or more second equipment, for sending the described discovery response finding request in response to having received;
Described first equipment is also connected for setting up WFD according to described discovery response with described one or more second equipment room, to carry out the transmission of on-screen data with described one or more second equipment room.
16. multi-screens according to claim 15 projection control system, is characterized in that, described first equipment also for starting one or more process service, to process the screen data transmission process with described one or more second equipment room respectively.
17. multi-screen projection control system according to claim 16, it is characterized in that, the IP address of distribution and the corresponding relation of the second equipment also for distributing an IP address for each in described one or more second equipment, and are stored in an IP list by described first equipment.
18. multi-screen projection control system according to claim 17, is characterized in that, the on-screen data of any one transmission in described one or more second equipment self is to described first equipment;
The on-screen data received also for receiving and showing the on-screen data received, and for according to described IP list, is sent to other the second equipment by interprocess communication by described first equipment.
19. multi-screen projection control system according to claim 15, it is characterized in that, the input signal detected is sent to described first equipment by any one in described one or more second equipment;
Described first equipment performs corresponding operation according to described input signal.
20. multi-screen projection control system according to claim 15, it is characterized in that, each in described one or more second equipment comprises a display screen respectively;
Described display screen comprises the first viewing area and the second viewing area;
The on-screen data of reception is shown by the first viewing area or the second viewing area by described one or more second equipment.
21. 1 kinds of multi-screen method for controlling projection, is characterized in that, comprising:
The request of discovery is sent from the first equipment;
Receive one or more discoverys response at described first equipment place, describedly find that response is in response to received described and finds request and from one or more second equipment transmission;
Set up described first equipment to be connected with the WFD of described one or more second equipment room;
WFD based on described foundation connects, and receives any one on-screen data of self sent in described one or more second equipment, and give other the second equipment by the described screen data transmission received at described first equipment place.
22. multi-screen method for controlling projection according to claim 21, it is characterized in that, one or more process service is started at described first equipment place, and be that each in described one or more second equipment distributes an IP address, and the IP address of distribution and the corresponding relation of the second equipment are stored in an IP list;
The described on-screen data received, according to described IP list, by interprocess communication, is sent to other the second equipment by described first equipment.
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