CN112804325A - Cross-system file transmission method based on wireless screen projector - Google Patents
Cross-system file transmission method based on wireless screen projector Download PDFInfo
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- CN112804325A CN112804325A CN202110035404.4A CN202110035404A CN112804325A CN 112804325 A CN112804325 A CN 112804325A CN 202110035404 A CN202110035404 A CN 202110035404A CN 112804325 A CN112804325 A CN 112804325A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- 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
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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Abstract
The invention discloses a cross-system file transmission method based on a wireless screen projector, which comprises the following steps: the target client listens to a wireless screen projector connected with the screen projector through UDP broadcast; establishing a socket channel; and remotely controlling the target client through the socket channel, and transmitting the file to the target client by the screen projection equipment or capturing the file from the target client to the screen projection equipment. According to the invention, the target client listens to the wireless screen projector connected with the screen projecting equipment through UDP broadcast, a socket channel is established with the wireless screen projector, the target client is remotely controlled through the socket channel, the screen projecting equipment transmits the file to the target client, or the target client captures the file to the screen projecting equipment, so that the file can be rapidly and stably transmitted between the screen projecting equipment and the target client, the file transmission efficiency and speed are greatly improved, meanwhile, the type range of the transmitted file is widened, third-party software or external storage equipment is not required to be relied on, and the method and the device can be suitable for richer use scenes.
Description
Technical Field
The invention relates to the technical field of file transmission, in particular to a cross-system file transmission method based on a wireless screen projector.
Background
The wireless screen projection is also called wireless screen sharing, screen flying and screen sharing. Specifically, a picture of a mobile device a (such as a mobile phone, a tablet, a notebook, and a computer) is displayed on a screen B (a tablet, a notebook, a computer, a television, a kiosk, and a projector) of another device in real time by a certain technical method, and the output content includes various media information and a real-time operation picture. The scheme supporting the relatively mature wireless screen projection technology comprises an airport screen mirror image of apple camp, a Miracast protocol of a WIFI alliance, a DLNA push technology, an APP software screen projection technology and a hardware screen projection technology.
At present, various wireless screen projectors on the market only support the synchronization of small-screen pictures and audio data, and the wireless screen projection technology supports the types of files to be transmitted and is limited to audio and image data files. If other types of files such as electronic forms, PPT and the like need to be shared in the using process, third-party software is required to be used for transmission, or operations such as copying, pasting and the like are carried out by means of external storage equipment, so that the using process is not convenient enough, and the efficiency is relatively low.
In view of this, there is an urgent need to improve the existing file transmission method to improve the convenience of file transmission and file transmission.
Disclosure of Invention
The invention aims to solve the technical problem that the existing file transmission method is low in efficiency.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a cross-system file transmission method based on a wireless screen projector comprises the following steps:
the target client monitors a wireless screen projector connected with the screen projecting equipment through UDP broadcast;
establishing a socket channel;
and remotely controlling the target client through the socket channel, and transmitting the file to the target client by the screen projection equipment or capturing the file from the target client to the screen projection equipment.
In the foregoing solution, preferably, the target client listens to the wireless screen projector connected to the screen projecting device through UDP broadcast, and includes the following steps:
the target client starts a UDP polling thread and monitors the data of the fixed port;
the wireless screen projector is connected with the screen projector and sends json data objects.
In the foregoing solution, preferably, the json data object includes a device IP and a firmware version number of the screen shot.
In the above solution, preferably, the fixed port number of the listening fixed port is 8878.
In the foregoing scheme, preferably, the establishing a socket channel includes the following steps:
the target client side intercepts a json data object and establishes a socket channel with the wireless screen projector;
and the state of an indicator light of the wireless screen projector is changed.
In the above solution, preferably, the fixed port number of the socket channel is 8888.
In the foregoing solution, preferably, the transmitting the file to the target client by the screen projection device includes the following steps:
establishing a screen projection software window when the wireless screen projector is connected with screen projection equipment;
establishing software interaction between the wireless screen projector and the target client, and displaying a real-time picture of the target client in a screen projecting software window;
dragging a file to be transmitted on screen projection equipment into a screen projection software window; or right clicking a file to be transmitted on the screen equipment, and selecting 'sending the file to the large-screen equipment';
transmitting a file to be screened to a target client through a socket channel;
and the target client receives and displays the file.
In the foregoing solution, preferably, the receiving and displaying of the file by the target client includes the following steps:
the target client receives the file and generates a file floating window;
clicking the floating window of the file and displaying the file.
In the foregoing scheme, preferably, the fetching of the file from the target client to the screen projection device includes the following steps:
establishing a screen projection software window when the wireless screen projector is connected with screen projection equipment;
establishing software interaction between the wireless screen projector and the target client, and displaying a real-time picture of the target client in a screen projecting software window;
selecting a file to be transmitted on a target client through a screen projection software window, and dragging the file to be transmitted to a desktop of screen projection equipment;
and transmitting the file to be transmitted through the socket channel, and displaying the file on the screen projection equipment.
In the above scheme, preferably, the target client is an intelligent television or an intelligent large-screen device; the screen projection equipment is a mobile phone, a tablet personal computer or a computer; the types of the files to be transmitted include, but are not limited to, audio files, video files, image files, spreadsheet files, and PPT.
Compared with the prior art, according to the cross-system file transmission method based on the wireless screen projector, the target client side senses the wireless screen projector connected with the screen projector through UDP broadcast, a socket channel is established with the wireless screen projector, the file is transmitted to the target client side through the socket channel from the screen projector or the file is captured to the screen projector from the target client side, the file is rapidly and stably transmitted between the screen projector and the target client side, and the efficiency and the speed of file transmission are greatly improved. The socket channel is used for transmitting the files, the type range of the transmitted files is widened, and the method can be suitable for richer use scenes. According to the invention, third-party software or external storage equipment is not required, and the convenience of file transmission is greatly improved.
Drawings
FIG. 1 is a flowchart of a cross-system file transfer method based on a wireless screen projector according to the present invention;
FIG. 2 is a flowchart of the present invention in which a target client listens to a wireless screen projector connected to a screen projection device through UDP broadcast;
FIG. 3 is a flow chart of establishing a socket channel in the present invention;
FIG. 4 is a flowchart of the present invention for transferring a file from a screen projection device to a target client;
FIG. 5 is a flowchart of the present invention for capturing files from a target client to a screen projection device;
FIG. 6 is a schematic diagram of an interface for transmitting files by the screen projection device according to the present invention;
FIG. 7 is an interface diagram during file transfer according to the present invention;
FIG. 8 is a schematic diagram of an interface of a target client when the file transfer is completed according to the present invention.
Detailed Description
The invention provides a cross-system file transmission method based on a wireless screen projector, wherein a target client monitors the wireless screen projector connected with a screen projector through UDP (user Datagram protocol), a socket channel is established with the wireless screen projector, a file is transmitted to the target client through the socket channel from the screen projector, or the file is captured from the target client to the screen projector, the type of the file transmitted by the wireless screen projector is expanded, and the efficiency and the convenience of file transmission are greatly improved. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 5, the present invention provides a cross-system file transmission method based on a wireless screen projector, which includes the following steps:
s1, the target client listens to the wireless screen projector connected with the screen projector through UDP broadcast;
specifically, the method comprises the following steps:
s11, the target client starts a UDP polling thread and listens to the data of the fixed port; wherein the fixed port number of the snooping fixed port is 8878.
S12, connecting the wireless screen projector with the screen projecting equipment, and sending a json data object; wherein the json data object comprises the projected equipment IP and the firmware version number.
After the wireless screen projector 2 and the screen projecting device 3 are successfully connected, json data objects including information such as screen projecting device IP and firmware version numbers are sent, and the json data objects sent by the wireless screen projector 2 are intercepted by the target client 1 through a UDP polling thread.
S2, establishing a socket channel;
specifically, the method comprises the following steps:
s21, the target client side intercepts the json data object and establishes a socket channel with the wireless screen projector;
the target client 1 monitors the json data object sent by the wireless screen projector 2 to obtain the screen projecting device IP and the firmware version number of the screen projecting device 3. The target client 1 establishes a socket channel with the wireless screen projector 2 through the acquired device IP and firmware version number of the screen projection device 3, and the target client 1 and the wireless screen projector 2 are successfully connected.
Wherein the fixed port number of the establishment socket channel is 8888.
And S22, changing the state of an indicator light of the wireless screen projector.
According to the successful connection between the target client 1 and the wireless screen projector 2, the state of the indicator light of the wireless screen projector 2 is changed, the indicator light is changed from the state to be connected to the connected state, and at the moment, the user can transmit files to the target client 1 through the screen projector 2 or capture the files from the target client 1.
And S3, remotely controlling the target client through the socket channel, and transmitting the file to the target client by the screen projection device or capturing the file from the target client to the screen projection device.
Specifically, the transmission of the file to the target client by the screen projection device comprises the following steps:
s311, establishing a screen projection software window when the wireless screen projector is connected with the screen projection equipment;
when the wireless screen projector 2 is connected with the screen projecting device 3, the screen projecting device 3 reads screen projecting software stored in the wireless screen projector 2, and a screen projecting software window 30 is established on the screen projecting device 3.
S312, establishing software interaction between the wireless screen projector and the target client, and displaying a real-time picture of the target client in a screen projecting software window;
the wireless screen projector 2 and the target client 1 establish software interaction through a socket channel, generate an operable picture from a real-time picture of the target client 1, transmit the operable picture to the screen projecting device 3 through the socket channel, and display the operable picture in a screen projecting software window 30; the user can open the file, copy the file and other operations on the target client 1 through the screen-casting software window 30, and the operation instruction is transmitted to the target client 1 through the socket channel.
S313, dragging the file to be transmitted to a screen projection software window on screen projection equipment; or right clicking a file to be transmitted on the screen equipment, and selecting 'sending the file to the large-screen equipment';
as shown in fig. 6, a user selects a file to be transmitted on the screen projection device 3, and drags the file to be transmitted into the screen projection software window 30.
Or, the user selects a file to be transmitted in the middle on the screen projection device 3, and right clicks a button for selecting "send to large screen device".
S314, transmitting the file to be screened to the target client through the socket channel;
as shown in fig. 7, the wireless screen projector 2 transmits the file dragged into the screen projection software window 30 or the selected file to be transmitted through the socket channel.
And S315, receiving and displaying the file by the target client.
Specifically, as shown in fig. 8, the target client 1 receives a to-be-screened file transmitted by the wireless screen projector 2 through a socket channel, and generates a file floating window 10 on the target client 1; a user touching or remotely clicking on the file float window 10 on the target client 1 may display the file on the target client 1.
Specifically, the steps of completing the remote control of the target client and capturing a file from the target client to the screen projection device include:
s321, establishing a screen projection software window when the wireless screen projector is connected with the screen projection equipment;
when the wireless screen projector 2 is connected with the screen projecting device 3, the screen projecting device 3 reads screen projecting software stored in the wireless screen projector 2, and a screen projecting software window 30 is established on the screen projecting device 3.
S322, establishing software interaction between the wireless screen projector and the target client, and displaying a real-time picture of the target client in a screen projecting software window;
the wireless screen projector 2 and the target client 1 establish software interaction through a socket channel, generate an operable picture from a real-time picture of the target client 1, transmit the operable picture to the screen projecting device 3 through the socket channel, and display the operable picture in a screen projecting software window 30; the user can open the file, copy the file and other operations on the target client 1 through the screen-casting software window 30, and the operation instruction is transmitted to the target client 1 through the socket channel.
S323, selecting a file to be transmitted on a target client through a screen projection software window, and dragging the file to be transmitted to a desktop of screen projection equipment;
a user selects a file to be transmitted on a target client 1 through a screen projection software window 30 and performs dragging operation; the wireless screen projector 2 sends a file transmission command to the target client 1 through the socket channel according to the dragging operation of the user.
And S324, transmitting the file to be transmitted through the socket channel, and displaying the file on the screen projection equipment.
The target client 1 transmits the file to be transmitted to the wireless screen projector 2 by using the socket channel according to the file transmission command, and the wireless screen projector 2 receives the file and displays the file on the desktop of the screen projector 3.
In the present invention, the target client 1 is an intelligent television or an intelligent large-screen device. The screen projection device 3 is a mobile terminal such as a mobile phone, a tablet computer or a computer, and the types of files to be transmitted include, but are not limited to, audio files, video files, image files, spreadsheet files and PPT.
Compared with the prior art, the cross-system file transmission method based on the wireless screen projector provided by the invention has the advantages that the wireless screen projector connected with the screen projecting equipment is utilized, a bidirectional socket channel is established between the target client and the wireless screen projector, the cross-system transmission of files on the screen projecting equipment and the target client is realized, and the method has good stability and higher transmission efficiency. Operations such as copying and pasting are not needed by third-party software or other external storage equipment, convenience of file transmission operation is greatly improved, and transmission efficiency is improved.
In the scheme, the types of the files to be transmitted include but are not limited to audio files, video files, image files, spreadsheet data files and PPT, the files to be transmitted are transmitted by using a socket channel, the range of the files to be transmitted is greatly expanded, and different use requirements of users are met.
In the scheme, the target client and the wireless screen projector realize bidirectional file transmission through a socket channel, a user can realize the file transmission from the screen projector to the target client or the file capture from the target client to the screen projector, and the method has wider and richer application scenes; the user can drag the file to be transmitted into the screen projection software window on the screen projection equipment, or right click the selected file on the screen projection equipment to be sent to the large-screen equipment, or grab the file on the target client through the screen projection software window, so that the file transmission operation of the user is facilitated, and the convenience of file transmission is improved.
In the scheme, the target client side establishes software interaction with the screen projection equipment through the wireless screen projection device, generates an operable picture from a real-time picture of the target client side, and transmits the operable picture and an operation instruction through the socket channel, so that the remote control and file transmission of the target client side by the screen projection equipment are realized, and a user can conveniently perform the remote control on the target client side through the screen projection equipment.
In the prior art, a target client such as an intelligent large screen generally only supports a touch control mode, and a touch screen needs to be operated before a user reaches the intelligent large screen. In the scheme, the screen projecting equipment establishes software interaction with the target client through the wireless screen projector and the screen projecting software window, remote control operation of the target client is achieved, a user can directly control the intelligent large screen through the screen projecting equipment, and control flexibility of the user on the intelligent large screen equipment is improved before the user reaches the intelligent large screen.
The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
Claims (10)
1. A cross-system file transmission method based on a wireless screen projector is characterized by comprising the following steps:
the target client listens to a wireless screen projector connected with the screen projector through UDP broadcast;
establishing a socket channel;
and remotely controlling the target client through the socket channel, and transmitting the file to the target client by the screen projection equipment or capturing the file from the target client to the screen projection equipment.
2. The cross-system file transmission method based on the wireless screen projector as claimed in claim 1, wherein the target client listens to the wireless screen projector connected to the screen projector device through UDP broadcast, comprising the following steps:
the target client starts a UDP polling thread and monitors the data of the fixed port;
the wireless screen projector is connected with the screen projector and sends json data objects.
3. The wireless screen projector-based cross-system file transfer method as claimed in claim 2, wherein the json data object comprises a projected device IP and a firmware version number.
4. The wireless screen projector-based cross-system file transfer method according to claim 2, wherein the fixed port number of the interception fixed port is 8878.
5. The wireless screen projector-based cross-system file transmission method according to claim 2, wherein the establishing of the socket channel comprises the following steps:
the target client side intercepts a json data object and establishes a socket channel with the wireless screen projector;
and the state of an indicator light of the wireless screen projector is changed.
6. The wireless screen projector-based cross-system file transmission method according to claim 5, wherein the fixed port number of the socket channel is 8888.
7. The wireless screen projector-based cross-system file transmission method according to claim 1, wherein the file is transmitted to the target client by the screen projection device, and the method comprises the following steps:
establishing a screen projection software window when the wireless screen projector is connected with screen projection equipment;
establishing software interaction between the wireless screen projector and the target client, and displaying a real-time picture of the target client in a screen projecting software window;
dragging a file to be transmitted on screen projection equipment into a screen projection software window; or right clicking a file to be transmitted on the screen equipment, and selecting 'sending the file to the large-screen equipment';
transmitting a file to be screened to a target client through a socket channel;
and the target client receives and displays the file.
8. The wireless screen projector-based cross-system file transmission method according to claim 7, wherein the target client receives and displays the file, and the method comprises the following steps:
the target client receives the file and generates a file floating window;
clicking the floating window of the file and displaying the file.
9. The wireless screen projector-based cross-system file transmission method according to claim 1, wherein the grabbing the file from the target client to the screen projector device comprises the following steps:
establishing a screen projection software window when the wireless screen projector is connected with screen projection equipment;
establishing software interaction between the wireless screen projector and the target client, and displaying a real-time picture of the target client in a screen projecting software window;
selecting a file to be transmitted on a target client through a screen projection software window, and dragging the file to be transmitted to a desktop of screen projection equipment;
and transmitting the file to be transmitted through the socket channel, and displaying the file on the screen projection equipment.
10. The wireless screen projector-based cross-system file transmission method according to claim 1, wherein the target client is an intelligent television or an intelligent large-screen device; the screen projection equipment is a mobile phone, a tablet personal computer or a computer; the types of the files to be transmitted include, but are not limited to, audio files, video files, image files, spreadsheet files, and PPT.
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| CN112804325B (en) | 2023-10-03 |
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