CN112019915A - Distributed directional screen projection method, system, equipment and storage medium - Google Patents
Distributed directional screen projection method, system, equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
- G06K7/1417—2D bar codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
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Abstract
The invention relates to the field of data screen projection, and discloses a distributed directional screen projection method, a system, equipment and a storage medium. The method comprises the following steps: n throw screen receiving system show service connection two-dimensional code to and throw the screen characteristic code through the release of DLNA multicast mode, wherein, N is for being greater than 1 positive integer, throws the screen characteristic code and includes: receiving IP addresses, receiving ports and receiving names corresponding to the N screen projection receiving systems; the screen projection sending system starts a preset screen projection APP, starts a preset anti-harassment mode through the screen projection APP, scans the service connection two-dimensional code through the screen projection APP, analyzes the service connection two-dimensional code to obtain a screen projection characteristic code, and sends a directional connection request to the N screen projection receiving systems according to the screen projection characteristic code; and the N screen projection receiving systems receive the directional connection request, change the DLNA multicast mode into a DLNA unicast mode and establish a data transmission channel of the DLNA unicast mode with the transmitting IP address.
Description
Technical Field
The invention relates to the field of data screen projection, in particular to a distributed directional screen projection method, a system, equipment and a storage medium.
Background
The screen projection technology is more and more widely applied to various occasions, more and more devices capable of projecting screens are available, and a series of display devices such as mobile phones, televisions, flat panels, computers, vehicle-mounted screens and IOT display screens are gradually added into the screen projection technology. As with bluetooth, infrared, and NFC technologies, are becoming increasingly popular with a variety of devices and living.
The widespread use of screen projection has gradually created a new problem, which is the situation that screen projection errors often occur in the public domain. This is because the display device is not connected to the screen projection devices one by one, but collects data of various screen projection devices widely, and thus the screen projection is disturbed by other users, resulting in a reduced experience. Today, screen projection noise is increasing, and a screen projection technology capable of one-to-one correspondence is increasingly needed.
Disclosure of Invention
The invention mainly aims to solve the technical problem that display equipment is easily interfered by different screen projection equipment in screen projection.
A distributed directional screen projection method is characterized in that the distributed directional screen projection method is applied to a distributed directional screen projection system, the distributed directional screen projection system comprises N screen projection receiving systems and a screen projection sending system, and the distributed directional screen projection method comprises the following steps:
the N screen projection receiving system display services are connected with the two-dimensional code and release the screen projection feature code in a DLNA multicast mode, wherein N is a positive integer greater than 1, and the screen projection feature code comprises: receiving IP addresses, receiving ports and receiving names corresponding to the N screen projection receiving systems;
the screen projection sending system starts a preset screen projection APP, starts a preset anti-harassment mode through the screen projection APP, and scans the service connection two-dimensional code through the screen projection APP;
the screen projection sending system analyzes the service connection two-dimensional code to obtain the screen projection feature code, and sends a directional connection request to the N screen projection receiving systems according to the screen projection feature code, wherein the directional connection request comprises: the sending IP address of the screen-casting sending system;
and the N screen projection receiving systems receive the directional connection request, change the DLNA multicast mode into a DLNA unicast mode and establish a data transmission channel of the DLNA unicast mode with the sending IP address.
Optionally, in a first implementation manner of the first aspect of the present invention, before the connecting the two-dimensional code to the N screen projection receiving systems and issuing the screen projection feature code in a DLNA multicast manner, the method further includes:
and the N screen projection receiving systems are in communication connection with each other and are used for synchronously projecting screen information.
Optionally, in a second implementation manner of the first aspect of the present invention, the starting, by the screen-casting sending system, a preset screen-casting APP, starting a preset anti-harassment mode through the screen-casting APP, and scanning the service connection two-dimensional code through the screen-casting APP includes:
the screen-throwing sending system APP starting instruction starts a preset screen-throwing APP system;
receiving a state bar starting instruction in the screen projection APP, and starting a preset anti-harassment mode;
receiving a scanning starting instruction, starting a preset image acquisition system in the screen projection APP, and scanning the service connection two-dimensional code through the image acquisition system.
Optionally, in a third implementation manner of the first aspect of the present invention, after the N screen projection receiving systems receive the directional connection request, change the DLNA multicast mode to a DLNA unicast mode, and establish a data transmission channel of the DLNA unicast mode with the sending IP address, the method further includes:
the screen projection sending system closes the anti-harassment mode and sends a unicast signal to the N screen projection receiving systems;
and the N screen projection receiving systems receive the termination unicast signal, change the DLNA unicast mode into the DLNA multicast mode, and issue the screen projection feature codes in the DLNA multicast mode.
Optionally, in a fourth implementation manner of the first aspect of the present invention, after the N screen projection receiving systems receive the directional connection request, change the DLNA multicast mode to a DLNA unicast mode, and establish a data transmission channel of the DLNA unicast mode with the sending IP address, the method further includes:
the screen projection sending system closes the data transmission channel;
and the N screen projection receiving systems change the DLNA unicast mode into the DLNA multicast mode according to the closing of the data transmission channel, and issue the screen projection feature codes in the DLNA multicast mode.
Optionally, in a fifth implementation manner of the first aspect of the present invention, the changing, by the N screen projection receiving systems, the DLNA unicast mode to the DLNA multicast mode according to the closing of the data transmission channel, and issuing the screen projection feature code in the DLNA multicast mode includes:
the N screen projection receiving systems send detection data to the screen projection sending system through the data transmission channel;
judging whether feedback information sent by the screen projection sending system is received or not;
and if the data transmission channel is not received, confirming that the data transmission channel is closed, changing the DLNA unicast mode into the DLNA multicast mode, and issuing the screen projection feature code in the DLNA multicast mode.
Optionally, in a sixth implementation manner of the first aspect of the present invention, after the N screen projection receiving systems change the DLNA multicast mode to a DLNA unicast mode, and establish a data transmission channel of the DLNA unicast mode with the sending IP address, the method further includes:
the screen projection sending system sends a screen projection request of target data through the data transmission channel;
the N screen projection receiving systems receive the screen projection requests;
and the N screen projection receiving systems display the target data according to the screen projection request.
A second aspect of the present invention provides a distributed directional projection system, comprising:
n screen projection receiving systems and screen projection sending systems;
the N screen projection receiving systems comprise display modules and changing modules, and the screen projection sending system comprises an activating module and a sending module;
the display module is used for displaying the service connection two-dimensional code and issuing a screen projection feature code in a DLNA multicast mode, wherein N is a positive integer greater than 1, and the screen projection feature code comprises: receiving IP addresses, receiving ports and receiving names corresponding to the N screen projection receiving systems;
the activation module is used for starting a preset screen projection APP, starting a preset anti-harassment mode through the screen projection APP, and scanning the service connection two-dimensional code through the screen projection APP;
the sending module is configured to obtain the screen projection feature code by the service connection two-dimensional code, and send a directional connection request to the N screen projection receiving systems according to the screen projection feature code, where the directional connection request includes: the sending IP address of the screen-casting sending system;
the change module is configured to receive the directional connection request, change the DLNA multicast mode to a DLNA unicast mode, and establish a data transmission channel of the DLNA unicast mode with the sending IP address.
A third aspect of the present invention provides a distributed directional projection apparatus, comprising: a memory having instructions stored therein and at least one processor, the memory and the at least one processor interconnected by a line; the at least one processor invokes the instructions in the memory to cause the distributed directional screen projection apparatus to perform the distributed directional screen projection method described above.
A fourth aspect of the present invention provides a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the distributed directional screen projection method described above.
Drawings
FIG. 1 is a diagram of a first embodiment of a distributed directional screen projection method according to an embodiment of the present invention;
FIG. 2 is a diagram of a second embodiment of a distributed directional screen projection method according to an embodiment of the present invention;
FIG. 3 is a diagram of a third embodiment of a distributed directional screen projection method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an embodiment of a distributed directional screen projection system in an embodiment of the invention;
FIG. 5 is a schematic diagram of another embodiment of a distributed directional screen projection system in an embodiment of the invention;
FIG. 6 is a schematic diagram of an embodiment of a distributed directional screen projection device in an embodiment of the invention;
fig. 7 is a schematic diagram of an overall embodiment of a distributed directional projection system according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a distributed directional screen projection method, a system, equipment and a storage medium.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," or "having," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For ease of understanding, a specific flow of an embodiment of the present invention is described below, and referring to fig. 1, an embodiment of a distributed directional screen projection method in an embodiment of the present invention includes:
101. n throw screen receiving system show service connection two-dimensional code to and throw the screen characteristic code through the release of DLNA multicast mode, wherein, N is for being greater than 1 positive integer, throws the screen characteristic code and includes: receiving IP addresses, receiving ports and receiving names corresponding to the N screen projection receiving systems;
in this embodiment, the N screen projection receiving systems may be a mixed display system formed by a computer, a television, a flat panel, and other devices, or may be an individual television display screen, and are mainly used for displaying data through a screen projection. In practical application, the connection service connection two-dimensional code is displayed first, and the two-dimensional code can obtain the connection service through scanning of the smart phone. And while displaying the two-dimensional code, using a DLNA multicast method to release information such as an equipment IP address, an equipment external port, an equipment name and the like of equipment such as a computer, a television, a panel and the like.
102. The screen projection sending system starts a preset screen projection APP, starts a preset anti-harassment mode through the screen projection APP, and is connected with the two-dimensional code through a screen projection APP scanning service;
in this embodiment, the screen projection sending system is a smart phone, a user clicks on smart phone equipment to start a set screen projection APP, an anti-harassment mode is started in a screen projection APP setting project, and the anti-harassment mode activates unicast setting in the smart phone.
It can be understood that an algorithm for resolving the two-dimensional code is integrated in a software program of the screen projection APP, and the screen projection sending system needs to call the screen projection APP to scan the two-dimensional code to resolve the two-dimensional code to obtain information such as an equipment IP address, an equipment external port and an equipment name of screen projection equipment such as a computer, a television and a flat panel.
103. The screen projection sending system analyzes the service connection two-dimensional code to obtain a screen projection feature code, and sends a directional connection request to N screen projection receiving systems according to the screen projection feature code, wherein the directional connection request comprises: a sending IP address of the screen-casting sending system;
in this embodiment, the screen projection sending system obtains the screen projection feature codes of the N screen projection receiving systems by resolving the two-dimensional code based on a two-dimensional code algorithm built in the screen projection APP, where the screen projection feature codes may be a combination of an equipment IP address, an equipment external port, and an equipment name, or may be a single data of the equipment IP address, the equipment external port, and the equipment name, and are used to identify the N screen projection receiving systems and determine a transmission position. And after the communication transmission place is obtained, sending a screen projection request to the N screen projection receiving systems.
It can be understood that if the N screen projection receiving systems are not in communication connection with each other, the smartphone scans the two-dimensional codes of the different screen projection receiving systems to obtain different screen projection feature codes, and then projects screens in the different screen projection receiving systems according to different specified data, or projects the data a simultaneously in the N screen projection receiving systems by one-touch screen projection.
Further, if the N screen projection receiving systems are in communication connection with each other, the IP addresses, ports and equipment names of the N screen projection receiving systems which are combined together can be obtained by scanning the two-dimensional code of one screen projection receiving system according to the value of the smart phone, and the data A is projected into the N screen projection receiving systems simultaneously through one-touch screen projection.
104. And the N screen projection receiving systems receive the directional connection request, change the DLNA multicast mode into a DLNA unicast mode and establish a data transmission channel of the DLNA unicast mode with the transmitting IP address.
In this embodiment, after receiving the corresponding directional connection request, the N computers, televisions, and tablets change the playing mode of DLNA from multicast to unicast, so that it is ensured that only the device scanning the code can search the receiving end device during transmission, and it is ensured that the user is not disturbed. The DLNA unicast-based transmission protocol establishes a data transmission channel with the scanning device. At the moment, the mobile phone terminal can be used for appointing screen projection data to be projected to the receiving display equipment, different data can be projected to different receiving display equipment, and the same screen projection data can be displayed on the N receiving display equipment.
In the embodiment of the invention, the data of only one screen projection device is displayed by one display device in the screen projection process through solving the problem that the transmission mode is changed in the screen projection process, so that the condition that different screen projection devices can interfere with each other in the use process is avoided, and the problem of directional screen projection of the display device and the screen projection device is solved.
Referring to fig. 2, a second embodiment of the distributed directional screen projection method according to the embodiment of the present invention includes:
201. the N screen projection receiving systems are in communication connection with each other and used for synchronously projecting screen information;
in this embodiment, different screen projection receiving systems are connected by using a communication transport protocol, and when one of the N screen projection receiving systems receives screen projection data, the data is synchronized therebetween, that is, while a unicast mode is used for screen projection, the data is synchronized between the N screen projection receiving systems.
202. N throw screen receiving system show service connection two-dimensional code to and throw the screen characteristic code through the release of DLNA multicast mode, wherein, N is for being greater than 1 positive integer, throws the screen characteristic code and includes: receiving IP addresses, receiving ports and receiving names corresponding to the N screen projection receiving systems;
this step has been described in the first embodiment, and reference may be made to the description of the first embodiment.
203. The screen projection sending system receives an APP starting instruction and starts a preset screen projection APP system;
204. receiving a state bar starting instruction in a screen projection APP, and starting a preset anti-harassment mode;
205. receiving a scanning starting instruction, starting a preset image acquisition system in a screen projection APP, and connecting a two-dimensional code through scanning service of the image acquisition system;
it can be understood that 203 and 205 schemes, the screen projection sending device receives the electric signal generated in the touch screen, and starts the APP pre-installed in the system. And receiving a status bar opened in a screen projection APP, activating a preset disturbance prevention mode, and only issuing screen projection in a DLNA unicast mode when screen projection is performed. And receiving a scanning starting instruction, calling an image acquisition system, namely calling a camera in the mobile phone to scan external data, and when the service connection two-dimensional code is captured by scanning, resolving the service connection two-dimensional code by a built-in two-dimensional resolving method to obtain the screen-projecting feature code of the two-dimensional code with the screen-projecting receiving equipment.
206. The screen projection sending system analyzes the service connection two-dimensional code to obtain a screen projection feature code, and sends a directional connection request to N screen projection receiving systems according to the screen projection feature code, wherein the directional connection request comprises: a sending IP address of the screen-casting sending system;
this step has been described in the first embodiment, and reference may be made to the description of the first embodiment.
207. The N screen projection receiving systems receive the directional connection request, change the DLNA multicast mode into a DLNA unicast mode and establish a data transmission channel of the DLNA unicast mode with the sending IP address;
this step has been described in the first embodiment, and reference may be made to the description of the first embodiment.
208. The screen projection sending system closes the anti-harassment mode and sends a termination unicast signal to the N screen projection receiving systems;
209. and the N screen projection receiving systems receive the termination unicast signal, change the DLNA unicast mode into a DLNA multicast mode and release the screen projection feature codes in the DLNA multicast mode.
It can be understood that in the scheme of 208-. And after the screen is thrown and the equipment data is received, switching the unicast distribution mode into a DLNA multicast mode, and receiving the screen by throwing and issuing the screen throwing feature codes in the DLNA multicast mode.
In the embodiment of the invention, the data of only one screen projection device is displayed by one display device in the screen projection process through solving the problem that the transmission mode is changed in the screen projection process, so that the condition that different screen projection devices can interfere with each other in the use process is avoided, and the problem of directional screen projection of the display device and the screen projection device is solved.
Referring to fig. 3, a third embodiment of the distributed directional screen projection method according to the embodiment of the present invention includes:
301. n throw screen receiving system show service connection two-dimensional code to and throw the screen characteristic code through the release of DLNA multicast mode, wherein, N is for being greater than 1 positive integer, throws the screen characteristic code and includes: receiving IP addresses, receiving ports and receiving names corresponding to the N screen projection receiving systems;
this step has been described in the first embodiment, and reference may be made to the description of the first embodiment.
302. The screen projection sending system starts a preset screen projection APP, starts a preset anti-harassment mode through the screen projection APP, and is connected with the two-dimensional code through a screen projection APP scanning service;
this step has been described in the first embodiment, and reference may be made to the description of the first embodiment.
303. The screen projection sending system analyzes the service connection two-dimensional code to obtain a screen projection feature code, and sends a directional connection request to N screen projection receiving systems according to the screen projection feature code, wherein the directional connection request comprises: a sending IP address of the screen-casting sending system;
this step has been described in the first embodiment, and reference may be made to the description of the first embodiment.
304. The N screen projection receiving systems receive the directional connection request, change the DLNA multicast mode into a DLNA unicast mode and establish a data transmission channel of the DLNA unicast mode with the sending IP address;
this step has been described in the first embodiment, and reference may be made to the description of the first embodiment.
305. The screen projection sending system sends a screen projection request of target data through a data transmission channel;
306. n screen projection receiving systems receive screen projection requests;
307. the N screen projection receiving systems display target data according to the screen projection requests;
in this embodiment, the scheme is 305-306, screen projection is transmitted based on a channel generated by DLNA unicast, and a screen projection request ask is sent by a prior screen projection device, where the request includes a URL address of target data. And the screen projection receiving system receives and sends a screen projection request ask, executes the request after comparison, captures data in the URL address and outputs the data to the display port, and the display of the target data is completed.
308. The screen projection sending system closes the data transmission channel;
309. the N screen projection receiving systems send detection data to the screen projection sending systems through data transmission channels;
310. judging whether feedback information sent by a screen projection sending system is received or not;
311. and if the data is not received, confirming that the data transmission channel is closed, changing the DLNA unicast mode into a DLNA multicast mode, and issuing the screen projection feature code in the DLNA multicast mode.
In this embodiment, the scheme 308-311 is that the screen projection sending device closes the data transmission channel, and at this time, no end instruction is sent to the screen projection receiving system. And the screen projection receiving equipment comprises a computer, a mobile phone and a tablet, sends a detection signal (sss 22) to a mobile phone system, and if no feedback information is returned, the screen projection sending equipment judges that the channel is closed. And the screen projection receiving equipment changes the DLNA unicast mode into a DLNA multicast mode, and then the screen projection receiving equipment releases the equipment IP address, the equipment external port and the equipment name through the DLNA multicast mode by a computer, a mobile phone and a panel.
In the embodiment of the invention, the data of only one screen projection device is displayed by one display device in the screen projection process through solving the problem that the transmission mode is changed in the screen projection process, so that the condition that different screen projection devices can interfere with each other in the use process is avoided, and the problem of directional screen projection of the display device and the screen projection device is solved.
With reference to fig. 4, the distributed directional screen projection system in the embodiment of the present invention is described above, and in the following, referring to an embodiment of the distributed directional screen projection system in the embodiment of the present invention, the distributed directional screen projection system includes:
n screen projection receiving systems 401 and screen projection sending systems 402;
the N screen projection receiving systems 401 include a display module 4011 and a modification module 4012, and the screen projection sending system 402 includes an activation module 4021 and a sending module 4022;
the activation module 4021 is configured to start a preset screen-throwing APP, start a preset anti-harassment mode through the screen-throwing APP, and scan the service connection two-dimensional code through the screen-throwing APP;
the sending module 4022 is configured to connect the two-dimensional code to obtain the screen-projecting feature code, and send a directional connection request to the N screen-projecting receiving systems according to the screen-projecting feature code, where the directional connection request includes: the sending IP address of the screen-casting sending system;
the changing module 4012 is configured to receive the directional connection request, change the DLNA multicast mode to a DLNA unicast mode, and establish a data transmission channel of the DLNA unicast mode with the sending IP address.
In the embodiment of the invention, the data of only one screen projection device is displayed by one display device in the screen projection process through solving the problem that the transmission mode is changed in the screen projection process, so that the condition that different screen projection devices can interfere with each other in the use process is avoided, and the problem of directional screen projection of the display device and the screen projection device is solved.
Referring to fig. 5, another embodiment of a distributed directional screen projection system according to an embodiment of the present invention includes:
n screen projection receiving systems 401 and screen projection sending systems 402;
the N screen projection receiving systems 401 include a display module 4011 and a modification module 4012, and the screen projection sending system 402 includes an activation module 4021 and a sending module 4022;
the activation module 4021 is configured to start a preset screen-throwing APP, start a preset anti-harassment mode through the screen-throwing APP, and scan the service connection two-dimensional code through the screen-throwing APP;
the sending module 4022 is configured to connect the two-dimensional code to obtain the screen-projecting feature code, and send a directional connection request to the N screen-projecting receiving systems according to the screen-projecting feature code, where the directional connection request includes: the sending IP address of the screen-casting sending system;
the changing module 4012 is configured to receive the directional connection request, change the DLNA multicast mode to a DLNA unicast mode, and establish a data transmission channel of the DLNA unicast mode with the sending IP address.
The distributed directional screen projection system further includes a connection module 403, where the connection module 403 is specifically configured to:
and the N screen projection receiving systems are in communication connection with each other and are used for synchronously projecting screen information.
The activation module 4021 is specifically configured to:
the screen-throwing sending system APP starting instruction starts a preset screen-throwing APP system;
receiving a state bar starting instruction in the screen projection APP, and starting a preset anti-harassment mode;
receiving a scanning starting instruction, starting a preset image acquisition system in the screen projection APP, and scanning the service connection two-dimensional code through the image acquisition system.
The distributed directional screen projection system further includes a mode switching module 404, where the mode switching module 404 is specifically configured to:
the screen projection sending system closes the anti-harassment mode and sends a unicast signal to the N screen projection receiving systems;
and the N screen projection receiving systems receive the termination unicast signal, change the DLNA unicast mode into the DLNA multicast mode, and issue the screen projection feature codes in the DLNA multicast mode.
Wherein the distributed directional screen projection system further comprises a channel closing module 405, the channel closing module 405 comprising:
a closing unit 4051, configured to close the data transmission channel by the screen projection sending system;
a changing unit 4052, configured to change the DLNA unicast mode to the DLNA multicast mode according to the closing of the data transmission channel, and issue the screen-casting feature code in the DLNA multicast mode by the N screen-casting receiving systems.
Wherein, the modifying unit 4052 is specifically configured to:
the N screen projection receiving systems send detection data to the screen projection sending system through the data transmission channel;
judging whether feedback information sent by the screen projection sending system is received or not;
and if the data transmission channel is not received, confirming that the data transmission channel is closed, changing the DLNA unicast mode into the DLNA multicast mode, and issuing the screen projection feature code in the DLNA multicast mode.
The distributed directional screen projection system further includes a data transmission module 406, where the data transmission module 406 is specifically configured to:
the screen projection sending system sends a screen projection request of target data through the data transmission channel;
the N screen projection receiving systems receive the screen projection requests;
and the N screen projection receiving systems display the target data according to the screen projection request.
In the embodiment of the invention, the data of only one screen projection device is displayed by one display device in the screen projection process through solving the problem that the transmission mode is changed in the screen projection process, so that the condition that different screen projection devices can interfere with each other in the use process is avoided, and the problem of directional screen projection of the display device and the screen projection device is solved.
Fig. 4 and 5 describe the distributed directional screen projection system in the embodiment of the present invention in detail from the perspective of the modular functional entity, and the distributed directional screen projection device in the embodiment of the present invention is described in detail from the perspective of hardware processing.
Fig. 6 is a schematic structural diagram of a distributed directional screen projection apparatus 600 according to an embodiment of the present invention, which may have a relatively large difference due to different configurations or performances, and may include one or more processors (CPUs) 610 (e.g., one or more processors) and a memory 620, and one or more storage media 630 (e.g., one or more mass storage devices) for storing applications 633 or data 632. Memory 620 and storage medium 630 may be, among other things, transient or persistent storage. The program stored on the storage medium 630 may include one or more modules (not shown), each of which may include a series of instruction operations for the distributed directional screen projection device 600. Still further, the processor 610 may be configured to communicate with the storage medium 630 to execute a series of instruction operations in the storage medium 630 on the distributed directional screen projection device 600.
The distributed orientation-based projection device 600 may also include one or more power supplies 640, one or more wired or wireless network interfaces 650, one or more input-output interfaces 660, and/or one or more operating systems 631, such as Windows Server, Mac OS X, Unix, Linux, FreeBSD, and the like. Those skilled in the art will appreciate that the distributed directional screen projection device configuration shown in fig. 6 does not constitute a limitation of distributed directional screen projection based devices and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
Fig. 7 is a diagram of an overall embodiment of a distributed directional screen projection system according to an embodiment of the present invention, where the N screen projection receiving systems 702 execute an operation of displaying a service connection two-dimensional code 703, the N screen projection receiving systems 702 execute an operation of multicasting a screen projection feature code 704, the screen projection sending system 701 executes an operation of starting a screen projection APP705, the screen projection sending system 701 executes an operation of starting an anti-harassment mode 706, the screen projection sending system 701 executes an operation of scanning a screen projection feature code 707, the screen projection sending system 701 executes an operation of sending a directional connection request 708, the N screen projection receiving systems 702 execute an operation of switching to unicast release a screen projection feature code 709, the screen projection sending system 701 executes an operation of sending a screen projection request 710, the N screen projection receiving systems 702 execute an operation of unicast displaying screen projection data 711, and the screen projection sending system 701 executes an operation of closing an anti-harassment mode 712, the N screen projection receiving systems 702 perform an operation of switching to the multicast distribution screen projection feature code 713.
The present invention also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium, and which may also be a volatile computer-readable storage medium, having stored therein instructions, which, when run on a computer, cause the computer to perform the steps of the distributed directional screen projection method.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described system or system and unit may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A distributed directional screen projection method is characterized in that the distributed directional screen projection method is applied to a distributed directional screen projection system, the distributed directional screen projection system comprises N screen projection receiving systems and a screen projection sending system, and the distributed directional screen projection method comprises the following steps:
the N screen projection receiving system display services are connected with the two-dimensional code and release the screen projection feature code in a DLNA multicast mode, wherein N is a positive integer greater than 1, and the screen projection feature code comprises: receiving IP addresses, receiving ports and receiving names corresponding to the N screen projection receiving systems;
the screen projection sending system starts a preset screen projection APP, starts a preset anti-harassment mode through the screen projection APP, and scans the service connection two-dimensional code through the screen projection APP;
the screen projection sending system analyzes the service connection two-dimensional code to obtain the screen projection feature code, and sends a directional connection request to the N screen projection receiving systems according to the screen projection feature code, wherein the directional connection request comprises: the sending IP address of the screen-casting sending system;
and the N screen projection receiving systems receive the directional connection request, change the DLNA multicast mode into a DLNA unicast mode and establish a data transmission channel of the DLNA unicast mode with the sending IP address.
2. The distributed directional screen projection method according to claim 1, wherein before the N screen projection receiving systems display the service connection two-dimensional code and issue the screen projection feature code in a DLNA multicast manner, the method further comprises:
and the N screen projection receiving systems are in communication connection with each other and are used for synchronously projecting screen information.
3. The distributed directional screen projection method according to claim 1, wherein the screen projection sending system starts a preset screen projection APP, starts a preset anti-harassment mode through the screen projection APP, and scans the service connection two-dimensional code through the screen projection APP includes:
the screen projection sending system receives an APP starting instruction and starts a preset screen projection APP system;
receiving a state bar starting instruction in the screen projection APP, and starting a preset anti-harassment mode;
receiving a scanning starting instruction, starting a preset image acquisition system in the screen projection APP, and scanning the service connection two-dimensional code through the image acquisition system.
4. The distributed directional screen projection method according to claim 1, wherein after the N screen projection receiving systems receive the directional connection request, change the DLNA multicast mode to a DLNA unicast mode, and establish a data transmission channel of the DLNA unicast mode with the sending IP address, the method further comprises:
the screen projection sending system closes the anti-harassment mode and sends a unicast signal to the N screen projection receiving systems;
and the N screen projection receiving systems receive the termination unicast signal, change the DLNA unicast mode into the DLNA multicast mode, and issue the screen projection feature codes in the DLNA multicast mode.
5. The distributed directional screen projection method according to claim 1, wherein after the N screen projection receiving systems receive the directional connection request, change the DLNA multicast mode to a DLNA unicast mode, and establish a data transmission channel of the DLNA unicast mode with the sending IP address, the method further comprises:
the screen projection sending system closes the data transmission channel;
and the N screen projection receiving systems change the DLNA unicast mode into the DLNA multicast mode according to the closing of the data transmission channel, and issue the screen projection feature codes in the DLNA multicast mode.
6. The distributed directional screen projection method according to claim 5, wherein the changing of the DLNA unicast mode to the DLNA multicast mode by the N screen projection receiving systems according to the closing of the data transmission channel and the issuing of the screen projection feature code by the DLNA multicast mode includes:
the N screen projection receiving systems send detection data to the screen projection sending system through the data transmission channel;
judging whether feedback information sent by the screen projection sending system is received or not;
and if the data transmission channel is not received, confirming that the data transmission channel is closed, changing the DLNA unicast mode into the DLNA multicast mode, and issuing the screen projection feature code in the DLNA multicast mode.
7. The distributed directional screen projection method according to claim 1, wherein after the N screen projection receiving systems change the DLNA multicast mode to a DLNA unicast mode and establish a data transmission channel of the DLNA unicast mode with the sending IP address, the method further comprises:
the screen projection sending system sends a screen projection request of target data through the data transmission channel;
the N screen projection receiving systems receive the screen projection requests;
and the N screen projection receiving systems display the target data according to the screen projection request.
8. A distributed directional screen projection system, comprising:
n screen projection receiving systems and screen projection sending systems;
the N screen projection receiving systems comprise display modules and changing modules, and the screen projection sending system comprises an activating module and a sending module;
the display module is used for displaying the service connection two-dimensional code and issuing a screen projection feature code in a DLNA multicast mode, wherein N is a positive integer greater than 1, and the screen projection feature code comprises: receiving IP addresses, receiving ports and receiving names corresponding to the N screen projection receiving systems;
the activation module is used for starting a preset screen projection APP, starting a preset anti-harassment mode through the screen projection APP, and scanning the service connection two-dimensional code through the screen projection APP;
the sending module is configured to obtain the screen projection feature code by the service connection two-dimensional code, and send a directional connection request to the N screen projection receiving systems according to the screen projection feature code, where the directional connection request includes: the sending IP address of the screen-casting sending system;
the change module is configured to receive the directional connection request, change the DLNA multicast mode to a DLNA unicast mode, and establish a data transmission channel of the DLNA unicast mode with the sending IP address.
9. A distributed directional screen projection apparatus, comprising: a memory having instructions stored therein and at least one processor, the memory and the at least one processor interconnected by a line;
the at least one processor invokes the instructions in the memory to cause the distributed directional screen projection apparatus to perform the distributed directional screen projection method of any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out a distributed directional screen projection method according to any one of claims 1 to 7.
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