CN105578227B - Multi-screen method for controlling projection, system and terminal device - Google Patents
Multi-screen method for controlling projection, system and terminal device Download PDFInfo
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- CN105578227B CN105578227B CN201510896486.6A CN201510896486A CN105578227B CN 105578227 B CN105578227 B CN 105578227B CN 201510896486 A CN201510896486 A CN 201510896486A CN 105578227 B CN105578227 B CN 105578227B
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 230000005540 biological transmission Effects 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000002452 interceptive effect Effects 0.000 description 14
- 238000001514 detection method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000001131 transforming effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000060 site-specific infrared dichroism spectroscopy Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
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- 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 stream to a specific local network, e.g. a 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 stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—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
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- 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)
- Controls And Circuits For Display Device (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of multi-screen method for controlling projection, system and terminal devices, which comprises sends discovery request from the first equipment；Receive one or more discovery responses at first equipment, what the discovery response was in response to send in the discovery request having received and from one or more second equipment；First equipment is established to connect with the WFD of one or more of second equipment rooms；The screen data of first equipment is transferred to one or more of second equipment by the WFD connection based on the foundation respectively.The beneficial effects of the practice of the present invention be, it can be achieved that one-to-many screen prjection with share, by WFD network, the dependence to place can be reduced；It can be applied 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.
Description
Technical field
The present invention relates to fields of communication technology, more specifically to a kind of multi-screen method for controlling projection, system and terminal
Equipment.
Background technique
Quick with smart machine is popularized, and the interaction between smart machine equipment is made full use of, and realizes interpersonal
Exchange and cooperation, be at present realize exchange diversification a main trend.
Wi-Fi display network be Wi-Fi Alliance suggestion enabling Wi-Fi equipment with Peer interconnection and
It is not involved in the network system of home network, intraoffice network or hot spot networks.
Existing Wi-Fi display (WFD) technology based on P2P can realize that the one-to-one screen of equipment room is shared.
But screen in the prior art shares the sharing for being only limitted to " one-to-one " formula, is a kind of unidirectional sharing, passive to hand over
Stream.
Therefore, the prior art is defective needs to improve.
Summary of the invention
The technical problem to be solved in the present invention is that the above-mentioned screen sharing for the prior art is only limitted to " one-to-one " formula
Sharing, be a kind of defect unidirectionally shared, a kind of multi-screen method for controlling projection, system and terminal device be provided.
The technical solution adopted by the present invention to solve the technical problems is:
In a first aspect, providing a kind of multi-screen method for controlling projection, comprising:
Discovery request is sent from the first equipment；
Receive one or more discovery responses at first equipment, the discovery response is in response in having received
The discovery request and sent from one or more second equipment；
WFD is established with one or more second equipment rooms in the first equipment to connect；
The transmission of screen data is carried out in the first equipment and one or more second equipment rooms.
In one embodiment, the discovery request is WFD discovery request；The discovery response is WFD discovery response.
In one embodiment, first equipment starts one or more process services, to handle respectively and described one
The screen data transmission process of a or multiple second equipment rooms.
In one embodiment, first equipment is that each of one or more of second equipment distribute one
IP address, and the corresponding relationship of the IP address of distribution and the second equipment is stored into an IP list.
In one embodiment, the method also includes:
Any of one or more of second equipment send the screen data of itself to first equipment；
First equipment receives and shows the screen data received.
In one embodiment, the method also includes:
First equipment is according to the IP list, and by interprocess communication, the screen data received is sent to it
Its second equipment.
In one embodiment, the method also includes:
The input signal that any of one or more of second equipment will test is sent to first equipment；
First equipment executes corresponding operation according to the input signal.
In one embodiment, when the input signal includes coordinate value and the lasting input of the input point after conversion
Between；
The conversion includes:
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, second equipment includes input equipment；
First preset value is the width of input equipment；Second preset value is the length of input equipment.
In one embodiment, each of one or more of second equipment respectively include a display screen；
The display screen includes the first display area and the second display area；
The method also includes: the screen data received is passed through the first viewing area by one or more of second equipment
Domain or the second display area are shown.
Second aspect provides a kind of terminal device, comprising:
Display unit；
Detect connection unit, for send discovery request, and for handle receive discovery response, with one or more
Second equipment establishes WFD connection；
Control unit, for being controlled such that the screen data that the display unit is shown passes through detection connection unit
It is sent to one or more of second equipment.
In one embodiment, the detection connection unit is also used to receive screen data；
Described control unit is also used to be controlled such that display unit shows the screen data received.
In one embodiment, the display unit includes the first display area and the second display area；
The screen data received is shown by first display area or the second display area.
In one embodiment, the detection connection unit is also used to receive appointing in one or more of second equipment
The input signal of one transmission；
Described control unit is also used to execute corresponding operation according to the input signal；
Wherein, each of one or more of second equipment include an input equipment, for according to user's
Operation generates the input signal.
The third aspect provides a kind of multi-screen projection control system, comprising:
First equipment, for sending discovery request；
One or more second equipment, for sending the discovery response of the discovery request in response to having received；
First equipment, which is also used to be responded according to the discovery, establishes WFD company with one or more of second equipment rooms
It connects, to carry out the transmission of screen data with one or more of second equipment rooms.
In one embodiment, first equipment is also used to start one or more process services, with handle respectively with
The screen data transmission process of one or more of second equipment rooms.
In one embodiment, first equipment is also used to as each of one or more of second equipment point
It stores with an IP address, and by the corresponding relationship of the IP address of distribution and the second equipment into an IP list.
In one embodiment, any of one or more of second equipment send the screen data of itself to institute
State the first equipment；
First equipment is also used to receive and show the screen data received, and is used for according to the IP list,
The screen data received is sent to other second equipment by interprocess communication.
In one embodiment, the input signal that any of one or more of second equipment will test is sent
To first equipment；
First equipment executes corresponding operation according to the input signal.
In one embodiment, each of one or more of second equipment respectively include a display screen；
The display screen includes the first display area and the second display area；
Received screen data is passed through the first display area or the second display area by one or more of second equipment
It is shown.
Implement a kind of multi-screen method for controlling projection, system and terminal device of the invention, having the advantages that can be real
Now to one-to-many screen prjection with share, by WFD network, the dependence to place can be reduced；It can be applied to multimedia conferencing
In the scene of the particular demands such as room or audio-visual function classroom, fast assembling WFD network is realized, realize resource-sharing；And it can realize
Multi-screen interactive, by role switching, any appliance can be shared；On the other hand, by split screen display available, facilitate management the machine
User experience is improved at interface；And multi-screen interactive can be realized using very universal terminal device, greatly reduce cost.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the hardware structural diagram of the terminal device of one embodiment of the invention；
Fig. 2 is the search routine figure of the projection side apparatus of one embodiment of the invention；
Fig. 3 is the schematic network structure of the achievable multi-screen projection control of one embodiment of the invention；
Fig. 4 is that the multiple processes of projection side opening of device of one embodiment of the invention carry out the signal of screen data transmission control
Figure；
Fig. 5 is the schematic diagram for receiving side apparatus receiving screen curtain data and show in one embodiment of the invention；
Fig. 6 is the schematic diagram that the reception side apparatus in one embodiment of the invention controls projection side apparatus；
Fig. 7 is control effect schematic diagram shown in fig. 6；
Fig. 8 is the display effect schematic diagram that receiving side uses after split screen in one embodiment of the invention；
Fig. 9 is the screen data hair that the equipment B in one embodiment of the invention as receiving side is switched to after projection side apparatus
Send effect diagram；
Figure 10 is the interactive interface schematic diagram of the terminal device 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.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
Embodiment 1
It is the hardware structural diagram of the terminal device of the embodiment of the present invention referring to Fig. 1.
The terminal device 100 of the embodiment of the present invention includes: detection connection unit 101, control unit 102, display unit
103。
When terminal device 100 is as projection side (end Source):
Detection connection unit 101 is available adjacent other to search for Wi-Fi display service for executing equipment discovery
Equipment.When finding other equipment, detection connection unit 101 interacted by RTSP agreement and other equipment, capability negotiation,
So that equipment 100 is connect with other equipment.
Basic operation in 102 controlling terminal equipment 100 of control unit.Specifically, control unit 102 is controlled such that
It obtains the content (screen data) that display unit 103 is shown and other equipment is sent to by detecting connection unit 101 based on RTP.
RTP, that is, real-time transport protocol.Control unit 102 determines input signal form from the user with basis by display unit 103
Input signal controlling terminal equipment 100.For example, according to input signal initiating equipment search etc..
When terminal device 100 is as receiving side (end Sink):
Detection connection unit 101 is also used to establish connection with the equipment of projection side, receives screen data.Control unit 102
It is also used to be controlled such that display unit 103 shows the screen data received.
It is referring to fig. 2 the search routine figure of the projection side apparatus of the embodiment of the present invention.The search routine of the embodiment of the present invention
Include:
Device discovery procedure: projection side apparatus is executed supports the adjacent external of Wi-Fi display is other to set for finding
Standby equipment discovery.
Equipment Connection Step: when any other equipment are found, the connection of projection side apparatus setting and the equipment is carried out
Exchange capacity and execute negotiation.
Play step: equipment utilization RTSP agreement carries out capability negotiation and matches relevant parameter, by RTSP play command
Afterwards, the current screen data for projecting side apparatus are packaged into video-voice frequency flow first, then by Real-time Transport Protocol directly by the audio stream
Packet is sent to reception side apparatus, and the screen data of projection side is to be sent to receiving side by stream type (audio/video (AV) stream).
RTSP, that is, real-time transport protocol belongs to an application layer protocol in ICP/IP protocol system, is mainly responsible for capacity of equipment negotiation.
In the embodiment of the present invention, in order to realize multi-screen interactive, relative to a projection side apparatus, there are one or more receptions
Side apparatus.Referring to the schematic network structure for the achievable multi-screen projection control that Fig. 3 is the embodiment of the present invention.
Network 1000 includes: a projection side apparatus 200 and at least one receives side apparatus 300.Project 200 He of side apparatus
The hardware configuration for receiving side apparatus 300 can refer to shown in above-mentioned Fig. 1.
Network 1000 has meaning identical with point-to-point (P2P) network of Wi-Fi.Projection side apparatus in network 1000
It is directly connected to each other with side apparatus is received by Wi-Fi direct, without using Wireless LAN (WLAN) access point
(AP) etc..
Specifically, projection side apparatus 200 executes equipment discovery in 1000 environment of network to find to receive side apparatus 300.
During equipment discovery, projection side apparatus 200 is sent on predefined channel detects claim frame (probe request
frame).Detecting claim frame includes such as reciprocity (P2P) information element (IE), P2P asterisk wildcard SSID, asterisk wildcard SSID, purpose
The information of way address, device type and device id etc.Reception side apparatus 300 in 1000 environment of network is in predefined letter
It is listened on road and detects claim frame.Each equipment determines the information matches search criterion detected in claim frame.If it finds a match, then
It receives side apparatus 300 and sends projection side apparatus 200 for the claim frame of detecting described with equipment.
After the completion of equipment discovery, projection side apparatus 200 executes service discovery to obtain and receive what side apparatus 300 was supported
Service.During service discovery, projection side apparatus 200 sends GAS initial request to and receives side apparatus 300.In response, it connects
It receives side apparatus 300 and sends projection side apparatus 200 for the GAS initial communication with information on services.Hereafter, side apparatus 200 is projected
It sets up WFD with reception side apparatus 300 using the equipment and service describing that obtain from reception side apparatus 300 to connect, i.e. setting in Fig. 2
Standby connection is established.
It should be understood that each reception side apparatus 300 in the embodiment of the present invention is established in the manner described above and is set with projection side
Standby connection.Projection side apparatus 200 and multiple reception side apparatus 300 can be known as a group (Group) as a result,.Projection side
Equipment 300 is designated as the group owner (GO).It receives side apparatus 300 and is used as group client.
Referring to fig. 4, equipment A is projection side apparatus, and equipment B, equipment C and equipment D are reception side apparatus.Equipment B, equipment
C, equipment D is connected by Wireless with equipment A.
Equipment A starts multiple process services, and each process manages respectively and the communication of a reception side apparatus.Such as: son
The communication connection data of 1 alignment processing equipment B of process, the communication connection data of 2 alignment processing equipment C of subprocess, subprocess 3 are right
Answer the communication connection data of processing equipment D.In addition, equipment A, which also starts a parent process, monitors connection etc. for carrying out.
In an embodiment of the present invention, each process is transmitted all in accordance with WFD agreement.
In order to realize the communication link of bottom, equipment A is that each equipment distributes an IP address, and by each receiving side
The corresponding relationship of equipment and its IP address is stored into an IP list.
In an embodiment of the present invention, by IP list, any equipment connecting with equipment A can pass through the IP list
Other equipment are accessed, establish TCP/IP connection, two-way communication are realized, in this way, any equipment can be by screen data
Other equipment are passed to by TCP/IP link.Thus, it can be achieved that the screen of equipment room is mutually thrown.
Specifically, the screen data transmission process between entire group includes:
(1) connection is established
In bottom link, the discovery procedure for the reception side apparatus that side apparatus is found according to above-mentioned execution, monitoring discovery are projected
Connection request from other equipment.And according to the equipment of discovery, specified equipment is selected to establish connection.When with multiple (two
Or more than two) when establishing connection, projection side apparatus creates multiple subprocess and handles between each equipment respectively equipment
Bidirectional data transfers.
(2) screen data transmission
After connection is established, the process service that projection side apparatus creates when being established according to connection utilizes the Wireless of bottom
Current screen video/audio is packaged by link, and all reception side apparatus are transferred in conjunction with Real-time Transport Protocol.Specifically, projection side
Equipment grabs a current screen data every preset time (for example, 30ms), is packaged into video-voice frequency flow, and according to Real-time Transport Protocol
Screen data is sent to reception side apparatus.
Receive the display that side apparatus is mainly responsible for the screen data of projection side apparatus transmission.Receiving side apparatus will receive
Media data flow comprising screen data carries out caching process and shows.Referring to Fig. 5, after screen data starts transmission, equipment B, C
With the screen data of D receiving device A and shown.
In an embodiment of the present invention, projection side apparatus is managed the list of devices for establishing connection, to guarantee information
Safety, and prevents unrelated equipment to be added, and can also manage exiting for equipment in the addition or link of midway new equipment.
The multi-screen method for controlling projection of the embodiment of the present invention, it can be achieved that one-to-many screen prjection with share, pass through WFD
Network can reduce the dependence to place；It can be applied 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, side apparatus is received other than it can show to the screen data received, it can also be to throwing
Shadow side apparatus is controlled.
Specifically, receiving side apparatus further include: input equipment 104, for generating input signal depending on the user's operation, and
Input signal is transferred to control unit.The information such as coordinate, duration in input signal including input point.
When reception side apparatus receives and shows the screen data of projection side apparatus, control unit detection passes through input equipment
The input signal of generation.
In one embodiment, in order to enable projection side apparatus can correctly identify input operation, control unit according to
The physical parameter of input equipment converts the coordinate for the input point for including in input signal.For example, input equipment is width
It is highly the touch screen of H0 for W0, input point coordinate is (X0, Y0), then will be (X0/W0, Y0/ after the conversion of input point coordinate
H0), i.e., it has been converted into ratio of the shared input equipment in width direction and length direction.In addition, can also be according to other
Mode is converted.
The input signals such as coordinate and duration after control unit control conversion are sent to throwing by detecting connection unit
Shadow side apparatus.After the input signal that projection side apparatus receives, the coordinate of input point is converted to and is adapted to projection side apparatus
The coordinate of input equipment.For example, being highly the touch screen of H1, the coordinate received is if it is W1 that projection side apparatus, which is width,
(X0/W0, Y0/H0), then receive the input point of side apparatus coordinate correspond to projection side apparatus coordinate be ((X0/W0) × W1,
(Y0/H0)×H1).Projection side apparatus can identify that corresponding to projection side in the input point for receiving side apparatus sets according to the coordinate
Input point when standby, and corresponding operation is executed according to input point.
It referring to Fig. 6, if being controlled by equipment B equipment A, in deviceb, clicks at 600, then input point is 600.
When being converted to the input point of equipment A, corresponding input point is 601.If the corresponding order of input point 601 are as follows: open " content
1 ", then when user is when equipment B is operated, " content 1 " in equipment A is turned on, referring to effect picture as shown in Figure 7.
It should be understood that due in the embodiment of the present invention, there is multiple reception side apparatus, and it can control projection side apparatus
System.Therefore, it is necessary to carry out the processing of control logic.Specifically, mode below can be used:
Mode one: projection side apparatus responds the input signal for the reception side apparatus being initially received according to timing.
Mode two: setting priority, if receiving multiple input signals in synchronization, respond highest priority or compared with
The input signal of high reception side apparatus.
Mode three: the fixed projection side apparatus of setting one, only in response to its input signal.
It should be understood that the embodiment of the present invention is not limited to three kinds of above-mentioned modes, it may also include other modes.
The embodiment of the invention sends projection side apparatus to by will receive the input signal that side apparatus receives, by
Projection side apparatus responds after being matched, and executes corresponding operation, it can be achieved that receiving control of the side apparatus to projection side apparatus, mentions
High interactive controlling efficiency promotes user experience.
Embodiment 3
On the basis of above-described embodiment 1 or 2, in order to enable receiving side apparatus in the screen for receiving and showing projection side apparatus
When curtain data, moreover it is possible to realize freely controlling to the machine, display screen data and the machine interface are distinguished by the way of split screen.
It should be understood that the display screen that split screen will receive side apparatus is divided into the first display area and the second display area, and
Input equipment is divided into and the corresponding input area in the first display area and input area corresponding with the second display area accordingly,
This is the prior art, and details are not described herein.Embodiment of the invention, on the basis of split screen, so that any aobvious in split screen
Show region for showing the screen data received.
Referring to Fig. 8, after split screen display available, equipment B, equipment C and equipment D have been all made of any display area for showing
The screen data of the equipment A received, and another display area is used to show the interface of the machine.It as a result, can by the machine interface
It realizes that most the machine freely controls, without in order to realize the control to the machine, and interrupts screen prjection.
It should be understood that receiving side apparatus in above-described embodiment 2 to throwing to realize after receiving side apparatus using split screen mode
The control of shadow side apparatus then first determines whether that input point is that display area or screen data where the machine interface is shown
The display area at place.If being sent to throwing after being converted the coordinate of input point in the display area where screen data
Shadow side apparatus.Specifically, this conversion can include:
Firstly, the coordinate of input point is expanded according to split screen ratio.For example, if the display screen for receiving side apparatus carries out
Upper and lower split screen, and the first display area and the second display area are equal sizes, if then the coordinate of touch point is (xc, yc), then
Its coordinate is expanded as into (2 × xc, 2 × yc).
Then, the coordinate after will be enlarged by is sent out after being converted to shared ratio of the input equipment in width direction and length direction
Give projection side apparatus.
Correct identification input operation can be realized in projection side apparatus as a result, and is responded.
The embodiment through the invention facilitates management the machine interface, improves user experience by split screen display available.
Embodiment 4
On the basis of above-described embodiment 1,2 or 3, reception side apparatus can be converted to projection side by way of switching and be set
It is standby, screen data is shared with other members.
Specifically, suspending first if a certain reception side apparatus needs the screen data of oneself being shared with other members
Screen data is received, screen data is then sent to projection side apparatus using the communication link of bottom and is shown.
Side apparatus is projected by interprocess communication, screen data transmission is received into side apparatus to other.Hereby it is achieved that will
Any screen data for receiving side apparatus is shared with other members in group.Shown in Figure 9 is an embodiment, and equipment B is cut
After being changed to projection side apparatus, screen data is sent to equipment A, equipment A display screen data, and by process by communication will
The screen data of equipment B is sent to equipment C and equipment D is shown.Equipment B realizes the projection of itself screen data as a result,.
In one embodiment, a settable switching key (can be virtual key, can also be entity physical button), passes through
Operating the key can be realized the conversion of role.Specifically, suspending connecing for screen data when operation button carries out role transforming
It receives or sends, after role transforming success, just continue receiving or sending for screen data.
The embodiment of the present invention on the basis of the above embodiments, in the case where keeping link to communicate, carries out role and cuts
It changes, can not only realize the switching that screen data is shared, can also shorten the switching time during screen is mutually thrown, effectively raise
Efficiency and participation.
Embodiment 5
The embodiment of the present invention also provides a kind of terminal device, with hardware configuration as shown in Figure 1.Specifically, the end
End equipment includes: display unit；Connection unit is detected, for sending discovery request, and for receiving discovery response, with one
A or multiple second equipment establish WFD connection；Control unit, the screen data shown for being controlled such that display unit
One or more second equipment are sent to by detecting connection unit.
In one embodiment, detection connection unit is also used to receive screen data；Control unit is also used to be controlled
So that display unit shows the screen data received.In one embodiment, display unit include the first display area and
Second display area；The screen data received is shown by the first display area or the second display area.
In one embodiment, detection connection unit is also used to receive any of one or more second equipment and sends
Input signal；Control unit is also used to execute corresponding operation according to input signal；Wherein, in one or more second equipment
Each include an input equipment, for generating input signal depending on the user's operation.
Referring to Figure 10, in an embodiment of the present invention, terminal device can be used as projection side apparatus, also can be used as receiving side and sets
It is standby.When opening screen prjection function, user can see the interactive interface as shown in the left side Figure 10 by display unit.Work as user
When selecting " projected picture " by input equipment, interactive interface jumps the interface on the upside of for the right, and the terminal device is i.e. as throwing
Shadow side apparatus executes device discovery procedure, finds the other equipment of adjacent external for supporting Wi-Fi display.When other equipment
It when being found, that is, shows list of devices, according to the user's choice, establishes connection with the user equipment of selection, carried out using RTSP
Exchange capacity and execute negotiation.After connection is established, after terminal device passes through RTSP play command, the screen of side apparatus will be projected
Data are sent directly to receive side apparatus；When receiving the response of receiving side, start the audio/video (AV) for mirror image
Stream, sends reception side apparatus by stream type for the screen data of projection side.
When user is by input equipment selection " receiving picture ", terminal device waits side to be projected as side apparatus is received
It initiates to invite, be invited when receiving, i.e., after establishing connection with projection side, screen data that projection side ready to receive is sent.
The terminal device of the embodiment of the present invention, it can be achieved that one-to-many screen prjection with share, can by WFD network
Reduce the dependence to place；It can be applied in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom, realize fast
Speed sets up WFD network, realizes resource-sharing；And can realize multi-screen interactive, by role switching, any appliance can be divided
It enjoys；On the other hand, by split screen display available, facilitate management the machine interface, improve user experience；And it is set using very universal terminal
It is standby that multi-screen interactive can be realized, greatly reduce cost.
Embodiment 6
Referring to the flow chart for the multi-screen method for controlling projection that Figure 11 is one embodiment of the invention.The multi-screen of the embodiment of the present invention
Method for controlling projection the following steps are included:
S1, discovery request is sent from the first equipment.Discovery request is WFD discovery request.
S2, one or more discovery responses are received at the first equipment.It was found that response is in response in the discovery having received
Request and send from one or more second equipment.Discovery response is WFD discovery response.
S3, it establishes the first equipment and is connect with the WFD of one or more second equipment rooms.The starting of first equipment is one or more
Process service, to handle the screen data transmission process with one or more second equipment rooms respectively.In one embodiment,
One equipment is each of one or more second equipment one IP address of distribution, and by the IP address of distribution and the second equipment
Corresponding relationship store into an IP list.
The screen data of first equipment is transferred to one or more second respectively and set by S4, the WFD connection based on foundation
It is standby.
It should be understood that the first equipment is equivalent to projection side apparatus, the second equipment is equivalent to reception side apparatus.In certain condition
Under, the first equipment can be exchanged into the second equipment and be converted to reception side apparatus, and the second equipment can be exchanged into the first equipment and convert
It is subsequent to be described to such conversion to project side apparatus.
In one embodiment, multi-screen method for controlling projection further include: at the first equipment, receive one or more second
The screen data of itself that any of equipment is sent；First equipment receives and shows the screen data received.At one
In embodiment, the first equipment is also according to IP list, and by interprocess communication, the screen data received is sent to other second
Equipment.Thus, it can be achieved that receiving side equipment is converted to projection side apparatus, the flexible switching of role is realized.In some embodiments,
A settable switching key (can be virtual key, can also be entity physical button), can be realized role by operating the key
Conversion.Specifically, suspending receiving or sending for screen data, role transforming success when operation button carries out role transforming
Afterwards, just continue receiving or sending for screen data.
In one embodiment, multi-screen method for controlling projection further include: one or more second is received at the first equipment
The input signal that any of equipment detects；First equipment executes corresponding operation according to input signal.Input signal packet
The coordinate value and input duration of input point after including conversion.This conversion includes: to be converted to the abscissa of input point
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.Wherein,
First preset value is the width of input equipment；Second preset value is the length of input equipment.In some embodiments, input equipment
It can be touch screen comprising touch panel and touch controller.In addition, input equipment can also be non-touch input equipment (example
Such as, infrared input equipment etc.), key-press input equipment etc..
In one embodiment, each of one or more second equipment respectively include a display screen.Display screen
Including the first display area and the second display area, the screen data received can be passed through the first display area or the as a result,
Two display areas are shown, and another display area is used to show the interface of itself.To may be implemented in reception screen data
While equipment of itself is manipulated.
It should be understood that realization principle described in above-mentioned implementation 1-4 and details are suitable for the embodiment.
The multi-screen method for controlling projection of the embodiment of the present invention, it can be achieved that one-to-many screen prjection with share, pass through WFD
Network can reduce the dependence to place；It can be applied in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom,
It realizes fast assembling WFD network, realizes resource-sharing；And can realize multi-screen interactive, by role switching, any appliance can be into
Row is shared；On the other hand, by split screen display available, facilitate management the machine interface, improve user experience；And utilize very universal end
Multi-screen interactive can be realized in end equipment, greatly reduces cost.
Embodiment 7
Referring to the flow chart for the multi-screen method for controlling projection that Figure 12 is another embodiment of the present invention comprising following steps:
S11, discovery request is sent from the first equipment；
S12, one or more discovery responses are received at the first equipment, discovery response is in response in the discovery having received
Request and send from one or more second equipment；
S13, it establishes the first equipment and is connect with the WFD of one or more second equipment rooms；
S14, the WFD connection based on foundation receive any of one or more second equipment hair at the first equipment
The screen data of itself sent, and give received screen data transmission to other second equipment.
Specifically, starting one or more process services, and at the first equipment in one or more second equipment
Each one IP address of distribution, and the corresponding relationship of the IP address of distribution and the second equipment is stored into an IP list；
First equipment is according to IP list, and by interprocess communication, the screen data received is sent to other second equipment.
It should be understood that realization principle described in above-mentioned implementation 1-4 and details are suitable for the embodiment.
The multi-screen method for controlling projection of the embodiment of the present invention can receive the screen number that other equipment are sent at the first equipment
According to, and be shared with other equipment, realize one-to-many screen prjection with share, by WFD network, can reduce to place according to
Rely；It can be applied 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 realize multi-screen interactive, by role switching, any appliance can be shared；On the other hand, pass through
Split screen display available facilitates management the machine interface, improves user experience；And it is mutual using very universal terminal device multi-screen to can be realized
It is dynamic, greatly reduce cost.
Embodiment 8
Referring to Figure 13, the embodiment of the present invention also provides a kind of multi-screen projection control system.The system includes:
First equipment 700, for sending discovery request.
One or more second equipment 701, for sending the discovery response of the discovery request in response to having received.
First equipment 700 is also used to establish WFD connection according between discovery response and one or more second equipment 701, with
The transmission of screen data is carried out between one or more second equipment 701.
First equipment 700 is also used to start one or more process services, is set with handling respectively with one or more second
Screen data transmission process between standby 701.
First equipment 700 is also used to distribute an IP address for each of one or more second equipment 701, and will
The corresponding relationship of the IP address of distribution and the second equipment is stored into an IP list.
Any of one or more second equipment 701 send the screen data of itself to the first equipment.First equipment
700 are also used to receive and show the screen data received, and for that will be received by interprocess communication according to IP list
Screen data be sent to other second equipment 701.
The input signal that any of one or more second equipment 701 will test is sent to the first equipment 700；The
One equipment 700 executes corresponding operation according to input signal.
Each of one or more second equipment 701 respectively include a display screen；Display screen includes the first display
Region and the second display area；One or more second equipment show received screen data by the first display area or second
Show that region is shown.
It should be understood that realization principle described in above-mentioned implementation 1-4 and details are suitable for the embodiment.
The embodiment of the present invention multi-screen projection control system, it can be achieved that one-to-many screen prjection with share, pass through WFD
Network can reduce the dependence to place；It can be applied in the scene of the particular demands such as multimedia conferencing room or audio-visual function classroom,
It realizes fast assembling WFD network, realizes resource-sharing；And can realize multi-screen interactive, by role switching, any appliance can be into
Row is shared；On the other hand, by split screen display available, facilitate management the machine interface, improve user experience；And utilize very universal end
Multi-screen interactive can be realized in end equipment, greatly reduces cost.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
It is two or more.
It should be understood that terminal device, the first equipment and the second equipment of the embodiment of the present invention can be come in a variety of manners in fact
It applies.For example, equipment described in the present invention may include such as mobile phone, mobile phone, smart phone, laptop, number
Radio receiver, PDA (personal digital assistant), PAD (tablet computer), PMP (portable media player), navigation device etc.
Deng mobile device and such as number TV, desktop computer etc. fixed equipment.
Any process described otherwise above or method description can be by flow chart or in an embodiment of the present invention
It is interpreted as, expression includes the steps that one or more codes for realizing specific logical function or the executable instruction of process
Module, segment or part, and the range of embodiment of the present invention includes other realization, wherein can not by shown or
The sequence of discussion, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this is answered
By the embodiment of the present invention, the technical personnel in the technical field understand.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of multi-screen method for controlling projection characterized by comprising
Discovery request is sent from the first equipment；
Receive one or more discovery responses at first equipment, the discovery, which responds, to be in response to described in have received
It was found that request and sent from one or more second equipment；
First equipment is established to connect with the WFD of one or more of second equipment rooms；
The screen data of first equipment is transferred to one or more of by the WFD connection based on the foundation respectively
Two equipment；
Start one or more process services, at first equipment to handle respectively and one or more of second equipment
Between screen data transmission process, start parent process at first equipment for monitoring one or more of processes
Service；
An IP address is distributed for each of one or more of second equipment at first equipment, and will distribution
IP address and the second equipment corresponding relationship store into an IP list；
At first equipment, the screen number of itself that any of one or more of second equipment are sent is received
According to；And
The screen data received is shown at first equipment；
First equipment is according to the IP list, and by interprocess communication, the screen data received is sent to other
Two equipment.
2. multi-screen method for controlling projection according to claim 1, which is characterized in that the discovery request is that WFD discovery is asked
It asks；The discovery response is WFD discovery response.
3. multi-screen method for controlling projection according to claim 1, which is characterized in that the method also includes:
The input signal that any of one or more of second equipment detect is received at first equipment；
First equipment executes corresponding operation according to the input signal.
4. multi-screen method for controlling projection according to claim 3, which is characterized in that the input signal includes after converting
The coordinate value and input duration of input point；
The conversion includes:
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.
5. multi-screen method for controlling projection according to claim 4, which is characterized in that second equipment includes that input is set
It is standby；
First preset value is the width of input equipment；Second preset value is the length of input equipment.
6. multi-screen method for controlling projection according to claim 1, which is characterized in that in one or more of second equipment
Each respectively include a display screen；
The display screen includes the first display area and the second display area；
The method also includes: one or more of second equipment by the screen data received by the first display area or
Second display area is shown.
7. a kind of multi-screen projects control system characterized by comprising
First equipment, for sending discovery request；
One or more second equipment, for sending the discovery response of the discovery request in response to having received；
First equipment is also used to establish WFD with one or more of second equipment rooms according to discovery response and connect,
To carry out the transmission of screen data with one or more of second equipment rooms；
First equipment is also used to start one or more process services, is set with handling respectively with one or more of second
Screen data transmission process between standby, it is one or more of for monitoring that first equipment is also used to start a parent process
Process service；
First equipment is also used to distribute an IP address for each of one or more of second equipment, and will divide
The corresponding relationship of the IP address and the second equipment matched is stored into an IP list；
Any of one or more of second equipment send the screen data of itself to first equipment；
First equipment is also used to receive and show the screen data received, and for passing through according to the IP list
The screen data received is sent to other second equipment by interprocess communication.
8. multi-screen according to claim 7 projects control system, which is characterized in that in one or more of second equipment
Either one or two of the input signal that will test be sent to first equipment；
First equipment executes corresponding operation according to the input signal.
9. multi-screen according to claim 7 projects control system, which is characterized in that in one or more of second equipment
Each respectively include a display screen；
The display screen includes the first display area and the second display area；
One or more of second equipment carry out received screen data by the first display area or the second display area
Display.
10. a kind of multi-screen method for controlling projection characterized by comprising
Discovery request is sent from the first equipment；
Receive one or more discovery responses at first equipment, the discovery, which responds, to be in response to described in have received
It was found that request and sent from one or more second equipment；
First equipment is established to connect with the WFD of one or more of second equipment rooms；
WFD connection based on the foundation, receives any in one or more of second equipment at first equipment
The screen data of itself of a transmission, and give the received screen data transmission to other second equipment；
Start one or more process services, at first equipment to handle respectively and one or more of second equipment
Between screen data transmission process, start parent process at first equipment for monitoring one or more of processes
Service, and distribute an IP address for each of one or more of second equipment, and by the IP address of distribution with
The corresponding relationship of second equipment is stored into an IP list；
First equipment is according to the IP list, and by interprocess communication, the screen data received is sent to it
Its second equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510896486.6A CN105578227B (en) | 2015-12-07 | 2015-12-07 | Multi-screen method for controlling projection, system and terminal device |
| PCT/CN2016/105522 WO2017097088A1 (en) | 2015-12-07 | 2016-11-11 | Multi-screen projection control method and system, terminal device, and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510896486.6A CN105578227B (en) | 2015-12-07 | 2015-12-07 | Multi-screen method for controlling projection, system and terminal device |
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| Publication Number | Publication Date |
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| CN105578227A CN105578227A (en) | 2016-05-11 |
| CN105578227B true CN105578227B (en) | 2019-08-16 |
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| WO (1) | WO2017097088A1 (en) |
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| CN103581285A (en) * | 2012-07-20 | 2014-02-12 | 三星电子株式会社 | Method and system for sharing content, device and computer-readable recording medium |
| CN103582165A (en) * | 2012-08-07 | 2014-02-12 | 中国移动通信集团公司 | Connection establishment method, device and system and data transmission method, device and system |
| CN103150132A (en) * | 2013-02-21 | 2013-06-12 | 海信集团有限公司 | Screen transmission method and electronic equipment |
| CN104618793A (en) * | 2015-02-28 | 2015-05-13 | 联想(北京)有限公司 | Information processing method and electronic equipment |
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| Publication number | Publication date |
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| CN105578227A (en) | 2016-05-11 |
| WO2017097088A1 (en) | 2017-06-15 |
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