CN111541934B - Screen projection equipment, method and system and computer readable storage medium - Google Patents
Screen projection equipment, method and system and computer readable storage medium Download PDFInfo
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- CN111541934B CN111541934B CN202010648839.1A CN202010648839A CN111541934B CN 111541934 B CN111541934 B CN 111541934B CN 202010648839 A CN202010648839 A CN 202010648839A CN 111541934 B CN111541934 B CN 111541934B
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- screen projection
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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
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43637—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
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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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
Abstract
The application discloses a screen projection device, a method, a system and a computer readable storage medium, wherein the screen projection device comprises: a first wireless communication unit; a second wireless communication unit; the control unit is configured to control the screen projection equipment to establish communication connection with the sending end through the first wireless communication unit; if the screen projection equipment is connected with a network, SSID and password information of the network is sent to the sending end through the first wireless communication unit, and if the screen projection equipment is not connected with the network, the second wireless communication unit is controlled to start a wireless hotspot, and the SSID and password information of the wireless hotspot is sent to the sending end through the first wireless communication unit; and receiving screen projection data sent by the sending end through the second wireless communication unit. The method and the device make full use of the existing communication hardware basis of the screen projection equipment, and reduce the overall cost; after the user connects the screen projection adapter with the equipment to be projected, the whole screen projection process does not need the user to perform any other operation, and the use is convenient.
Description
Technical Field
The present application relates to the field of screen projection technologies, and in particular, to a screen projection device, method, system, and computer-readable storage medium.
Background
With the development of multimedia technology, screen projection has become an essential auxiliary technology in family life and office. Under the screen projection requirement scene, the following implementation means are available at present: 1) the screen is projected through the HDMI, and the defects of wired connection and inconvenient use are overcome; 2) the usb dongle is used for connecting the PC at the sending end, the PC and the receiving end project screens through screen projecting protocols such as DLNA (digital living network alliance), but the PC end needs to enter specific software for connection operation, so that the complexity of user operation is increased; 3) the method is universal, does not need a user to operate on software, and has the defects of high cost and not attractive appearance due to the fact that two screen projection adapters are needed.
Disclosure of Invention
In view of the foregoing, the present application provides a screen projection apparatus, a method, a system and a computer readable storage medium.
In a first aspect, the present application provides a screen projection apparatus, comprising:
the first wireless communication unit is configured to establish communication connection with a sending end through a first wireless communication mode;
the second wireless communication unit is configured to establish communication connection with the sending end through a second wireless communication mode;
the control unit is configured to control the screen projection equipment to establish communication connection with the sending end through the first wireless communication unit; judging whether the screen projection equipment is connected with a network or not; if the screen projection equipment is connected with a network, SSID and password information of the network is sent to the sending end through the first wireless communication unit, if the screen projection equipment is not connected with the network, the screen projection equipment is controlled to start a second wireless communication hotspot, and the SSID and the password information of the second wireless communication hotspot are sent to the sending end through the first wireless communication unit; after the communication connection with the sending end is established through the second wireless communication unit, screen projection data sent by the sending end is received through the second wireless communication unit.
In one possible design, the control unit is further configured to: the method comprises the steps that capability data of screen projection equipment are sent to a sending end through a first wireless communication unit or a second wireless communication unit, wherein the capability data of the screen projection equipment comprise one or more of video stream decoding capability, a supported transmission protocol, physical resolution of display equipment and delay characteristics of the screen projection equipment; and receiving screen projection data sent by a sending end according to the screen projection equipment capability data received by the sending end through the second wireless communication unit, wherein the sending protocol comprises one or more of a transmission protocol, a coding format and a resolution ratio.
Illustratively, the first wireless communication mode is a bluetooth communication mode, and the second wireless communication mode is a WIFI communication mode.
In a second aspect, the present application provides a screen projection method, including: controlling the screen projection equipment to establish communication connection with a sending end in a first wireless communication mode; judging whether the screen projection equipment is connected with a network or not; if the screen projection equipment is connected with a network, SSID and password information of the network is sent to a sending end through a first wireless communication mode; if the screen projection equipment is not connected with the network, controlling the screen projection equipment to start a second wireless communication hotspot and sending SSID and password information of the second wireless communication hotspot to a sending end in a first wireless communication mode; and after the communication connection is established with the sending end through the second wireless communication mode, screen projection data sent by the sending end is received through the second wireless communication mode.
Exemplarily, the controlling the screen projection device to establish a communication connection with the sending end through a first wireless communication mode includes: detecting a nearby first wireless communication broadcast; when a first wireless communication broadcast named a preset name is detected, a first wireless communication connection is established with a transmitting end which sends the first wireless communication broadcast.
In one possible design, the receiving, by the second wireless communication means, the screen projection data sent by the sending end includes: sending the capability data of the screen projection equipment to a sending end through a first wireless communication mode or a second wireless communication mode, wherein the capability data of the screen projection equipment comprises one or more of video stream decoding capability, a supported transmission protocol, physical resolution of display equipment and delay characteristics of the screen projection equipment; and receiving screen projection data sent by a sending end according to the screen projection equipment capability data received by the sending end in a second wireless communication mode, wherein the sending protocol comprises one or more of a transmission protocol, a coding format and a resolution ratio.
Illustratively, the first wireless communication mode is a bluetooth communication mode, and the second wireless communication mode is a WIFI communication mode.
In a third aspect, the present application provides another screen projection apparatus, comprising: a memory for storing a program; a processor coupled to the memory, the program when executed by the processor performing the screen projection method as described in the second aspect or any of its possible implementations.
In a fourth aspect, the present application provides a screen projection system, comprising: the system comprises a sending end and a receiving end, wherein the sending end comprises a to-be-projected screen device which is provided with a transmission interface and needs to project a screen and a screen projecting adapter which is coupled to the to-be-projected screen device through the transmission interface and supports a first wireless communication mode and a second wireless communication mode; a screen projection device as described in the first aspect or any one of its possible implementations.
In a fifth aspect, the present application provides a computer-readable storage medium comprising computer instructions which, when executed by a processor, can implement the screen projection method according to the second aspect or any one of the possible implementations of the second aspect.
It should be noted that, the screen projection apparatus described in the first aspect and the third aspect and the computer-readable storage medium described in the fifth aspect in the present application are used for executing the method provided in the second aspect, so that the same beneficial effects as those of the method described in the second aspect can be achieved, and the embodiments of the present application are not described herein again.
According to the method and the device, the screen projection equipment and the sending end are deeply fused, the existing communication hardware base of the screen projection equipment is fully utilized, and the overall cost is reduced; in a projection scene, the screen can be projected quickly only by one corresponding screen projection adapter. After the user connects the screen projection adapter with the equipment to be projected, the whole screen projection process does not need the user to perform any other operation, and the use is convenient. And the sending end of the application can also intelligently select a sending protocol according to the capability of the screen projection equipment, and less resources are utilized to meet the requirements of users.
Drawings
The present application will now be described by way of example only and with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of a screen projection system according to an embodiment of the present application;
fig. 2 is a schematic flow chart of encoding and decoding performed by the screen projection adapter according to the embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Moreover, while the disclosure herein has been presented in terms of exemplary one or more examples, it is to be understood that each aspect of the disclosure can be utilized independently and separately from other aspects of the disclosure to provide a complete disclosure. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
In the embodiments of the present application, the words "exemplary," "for example," and the like are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term using examples is intended to present concepts in a concrete fashion.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in this application do not denote any order, quantity, or importance, but rather the description is used to distinguish one element from another. The term "and/or" includes any and all combinations of one or more of the associated listed items. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.
The technical solution in the present application will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a screen projection system according to an embodiment of the present application. As shown in fig. 1, the screen projection system 100 includes a device to be projected 101, a screen projection adapter 102, and a screen projection device 103, where the device to be projected 101 and the screen projection adapter 102 are collectively referred to as a transmitting end. For example, the device to be projected 101 may be a device such as a PC or an HDMI box which has a transmission interface and needs to project a screen, the screen projection adapter 102 is a wireless screen projection adapter which is coupled to the device to be projected 101 through the transmission interface and supports a first wireless communication mode (communication unit 1) and a second wireless communication mode (communication unit 2), and the screen projection device 103 may be a device such as a projector which supports the first wireless communication mode and the second wireless communication mode and can project a screen. Illustratively, the transmission interface is an HDMI interface, the first wireless communication mode is a bluetooth communication mode, and the second wireless communication mode is a WIFI communication mode. In other embodiments, the transmission interface may also be an interface such as VGA, DVI, Type-C, or DP. In some embodiments, the screen projection adapter 102 may not be coupled to the device to be projected 101 through a transmission interface, but may be connected to the device to be projected 101 through a wireless communication manner, which is not limited in this application.
The screen projection device 103 includes: the first wireless communication unit is configured to establish communication connection with a sending end through a first wireless communication mode; the second wireless communication unit is configured to establish communication connection with the sending end through a second wireless communication mode; the control unit is configured to control the screen projection equipment to establish communication connection with the sending end through the first wireless communication unit; judging whether the screen projection equipment is connected with a network or not; if the screen projection equipment is connected with a network, SSID and password information of the network is sent to the sending end through the first wireless communication unit, if the screen projection equipment is not connected with the network, the screen projection equipment is controlled to start a second wireless communication hotspot, and the SSID and the password information of the second wireless communication hotspot are sent to the sending end through the first wireless communication unit; after the communication connection with the sending end is established through the second wireless communication unit, screen projection data sent by the sending end is received through the second wireless communication unit.
In some embodiments, the screen projection device 103 may send capability data, such as video stream decoding capability, supported transmission protocols, physical resolution and delay characteristics of the display device, to the screen projection adapter 102 through the first wireless communication unit or the second wireless communication unit, and the screen projection adapter 102 intelligently selects a transmission protocol, an encoding format, a resolution, and the like according to the capability of the screen projection device 103, so as to meet the requirements of the user with fewer resources.
The screen projection process of the screen projection system 100 is further described below with an embodiment. In this specific embodiment, the device 101 to be projected is a device that has an HDMI interface and needs to project a screen, and in other embodiments, the device 101 to be projected may also be a device that has a transmission interface such as a USB interface and needs to project a screen; the screen projection adapter 102 is coupled to the device 101 to be projected through an HDMI interface module, and the first wireless communication mode and the second wireless communication mode supported by the screen projection adapter 102 are a bluetooth communication mode and a WIFI communication mode, for example, the screen projection adapter 102 is an HDMI wireless dongle; the first wireless communication unit and the second wireless communication unit of the screen projection device 103 are a bluetooth communication unit and a WIFI communication unit, respectively. The screen projection process of the screen projection system 100 includes:
1. after the screen projection device 103 is turned on, the bluetooth continuously detects the bluetooth broadcast sent by the nearby device in the background.
2. The user inserts the screen projection adapter 102 into the device 101 to be screen projected, and the screen projection adapter 102 establishes communication connection with the device 101 to be screen projected through the HDMI interface.
3. The screen projection adapter 102 sends out a bluetooth broadcast. After the screen projection device 101 is started, the Bluetooth name is changed to a predetermined name, such as "HDMI _ Cast _ Bluetooth", and can be scanned by surrounding Bluetooth; after the screen projection device 103 scans the HDMI _ Cast _ Bluetooth, the HDMI _ Cast _ Bluetooth is connected to establish a Bluetooth connection.
4. After the connection is established by the bluetooth, the screen projection device 103 synchronizes WIFI connection information with the screen projection adapter 102 to establish a network. Exemplarily, the screen projection device 103 and the screen projection adapter 102 synchronizing the WIFI connection information includes:
judging whether the screen projection equipment 103 is connected with a network or not; if the screen projection equipment 103 is connected with a network, the SSID and password information of the network is sent to the screen projection adapter 102 through a Bluetooth link; if the screen projection device 103 is not connected with a network, the screen projection device 103 is controlled to open the WIFI hotspot, and SSID and password information of the WIFI hotspot is sent to the screen projection adapter 102 through a Bluetooth link.
Therefore, the sending end and the screen projection equipment 103 are in the same local area network, and screen projection is convenient.
Illustratively, the data format of the screen projection adapter 102 for data interaction with the screen projection device 103 is shown in table 1.
TABLE 1
Wherein, TX/RX is used for indicating whether to transmit or receive; head is used to indicate what function is; payload size is used to indicate packet size; payload is used to indicate the content that needs to be parsed. After the payload is analyzed, the information sent by the opposite terminal can be obtained according to the Head category.
5. After the network connection, the device to be screen-projected 101 can send screen-projection data to the screen-projection device 103 through the WIFI link by using the screen-projection adapter 102 to perform screen projection.
In this particular embodiment, the method performed by the screen projection device 103 includes: establishing communication connection with the screen projection adapter 102 through Bluetooth; judging whether the screen projection equipment 103 is connected with a network or not; if the screen projection equipment 103 is connected with a network, the SSID and password information of the network is sent to the screen projection adapter 102 through a Bluetooth link; if the screen projection device 103 is not connected with a network, the WIFI hotspot is started, and SSID and password information of the WIFI hotspot is sent to the screen projection adapter 102 through a Bluetooth link; after a WIFI network is established with the screen projection adapter 102, screen projection data sent by the screen projection adapter 102 are received through a WIFI link.
In some embodiments, before the device to be screen-projected 101 sends the screen-projection data to the screen-projecting device 103 through the WIFI link by using the screen-projecting adapter 102, the screen-projecting preparation stage is further included:
1) the screen projection device 103 transmits capability data such as video stream decoding capability, supported transport protocol capability, physical resolution of the display device, delay characteristic and the like which the screen projection device has to the screen projection adapter 102 through a WIFI or bluetooth link.
Illustratively, the packet format protocol is shown in table 2.
TABLE 2
2) The screen projection adapter 102 intelligently selects a transmission protocol, an encoding format, a resolution and other transmission protocols according to the capability data of the screen projection device 103. Illustratively, the intelligently chosen policy is as follows:
codec format H265> H264> MPEG4
Transmission protocol HLS > RTSP > RTMP
Low delay characteristics: point-to-point > video stream resolution is lower than receiving end resolution
No delay requirement: 4K >1080>720>576
For example: the capability data sent by the screen projection device 103 is: 0x33 xx DECODE: H264 RES:1920x1080DTP: RTMP DELAY:1, then the transmission protocol selected by the projection adapter 102 is: CODEC H264 RES 1920x1080DTP RTMP; if the capability data sent by the screen projection device 103 is: 0x33 xx DECODE: H264/H265 RES:1920x1080DTP: RTMP DELAY:0, then the transmission protocol selected by the screen projection adapter 102 is CODEC: H265 RES:4K DTP: RTMP.
In some embodiments, the screen projection adapter 102 sending the screen projection data to the screen projection device 103 through the WIFI link includes: the screen projection adapter 102 decodes the HDMI data stream and re-encodes it. Illustratively, as shown in fig. 2, HDMIRX receives HDMI packet decoding, decodes it into YUV and PCM to the encoder, which encodes it into H264, and finally transmits it through RTSP organization.
In other embodiments, the screen projection device 103 may also be directly used as a wifi hotspot, and the screen projection adapter 102 is connected to the wifi hotspot to establish network connection with the screen projection device 103, thereby implementing screen projection. In this embodiment, the screen projection process includes:
1. after the screen projection device 103 is started, a wifi hotspot is started, and the name and the password of the wifi hotspot are predetermined;
2. the user inserts the screen projection adapter 102 into the device 101 to be screen projected, and the screen projection adapter 102 establishes communication connection with the device 101 to be screen projected through the HDMI interface.
3. After the screen projection adapter 102 scans the wifi hotspot of the screen projection device 103, the wifi hotspot is connected to establish network connection with the screen projection device 103.
4. After the network connection, the device to be screen-projected 101 can send screen-projection data to the screen-projection device 103 through the WIFI link by using the screen-projection adapter 102 to perform screen projection.
The embodiment of the present application further provides a screen projection device, which includes a memory, where the memory is used to store a program, and a processor, coupled to the memory, where when the program is executed by the processor, the screen projection method executed by the screen projection device in the foregoing embodiment is implemented.
The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and the instructions are executed by a processor to implement the screen projecting method executed by the screen projecting device in the foregoing embodiment.
It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units 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 application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, a network device or a terminal device, etc.) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: u disk, removable hard disk, ROM, RAM) magnetic or optical disk, or the like.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. The character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
The word "if" or "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It will be understood by those skilled in the art that all or part of the steps in the method for implementing the above embodiments may be implemented by instructing the relevant hardware through a program, which may be stored in a storage medium readable by a device and includes all or part of the steps when executed, such as: FLASH, EEPROM, etc.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a throw screen equipment, throw screen equipment and be used for throwing the screen equipment to waiting in the sending terminal and throw the screen, the sending terminal is including waiting to throw screen equipment and throwing the screen adapter, wait to throw the equipment of screen equipment for having transmission interface and need throw the equipment of screen, throw the screen adapter and be coupled in waiting to throw screen equipment through transmission interface, and support first wireless communication mode and second wireless communication mode, its characterized in that throws screen equipment and includes:
the screen projection device comprises a first wireless communication unit, a second wireless communication unit and a screen projection adapter, wherein the first wireless communication unit is configured to establish communication connection with the screen projection adapter through a first wireless communication mode;
the second wireless communication unit is configured to establish communication connection with the screen projection adapter through a second wireless communication mode;
the control unit is configured to control the screen projection equipment to establish communication connection with the screen projection adapter through the first wireless communication unit; judging whether the screen projection equipment is connected with a network or not; if the screen projection equipment is connected with a network, SSID and password information of the network are sent to the screen projection adapter through the first wireless communication unit, and if the screen projection equipment is not connected with the network, the screen projection equipment is controlled to start a second wireless communication hotspot, and the SSID and password information of the second wireless communication hotspot is sent to the screen projection adapter through the first wireless communication unit; after the second wireless communication unit is in communication connection with the screen projection adapter, screen projection data sent by the screen projection adapter are received through the second wireless communication unit, and the screen projection data are screen projection data sent to the screen projection adapter by the screen to be projected through the transmission interface.
2. The screen projection apparatus of claim 1, wherein the control unit is further configured to:
sending the capability data of the screen projection equipment to a screen projection adapter through the first wireless communication unit or the second wireless communication unit, wherein the capability data of the screen projection equipment comprises one or more of video stream decoding capability, supported transmission protocols, physical resolution and delay characteristics of display equipment owned by the screen projection equipment;
and receiving screen projection data sent by a screen projection adapter according to the screen projection equipment capability data received by the screen projection adapter through the second wireless communication unit, wherein the sending protocol comprises one or more of a transmission protocol, a coding format and a resolution ratio.
3. The screen projection device according to any one of claims 1-2, wherein the first wireless communication mode is a bluetooth communication mode, and the second wireless communication mode is a WIFI communication mode.
4. A screen projection method is applied to screen projection equipment, the screen projection equipment is used for projecting a screen to be projected in a sending end, the sending end comprises the screen to be projected equipment and a screen projection adapter, the screen to be projected equipment is equipment which is provided with a transmission interface and needs to project the screen, the screen projection adapter is coupled to the screen to be projected equipment through the transmission interface and supports a first wireless communication mode and a second wireless communication mode, and the screen projection method is characterized by comprising the following steps:
controlling the screen projection equipment to establish communication connection with the screen projection adapter in a first wireless communication mode;
judging whether the screen projection equipment is connected with a network or not;
if the screen projection equipment is connected with a network, SSID and password information of the network are sent to a screen projection adapter through a first wireless communication mode; if the screen projection equipment is not connected with the network, controlling the screen projection equipment to start a second wireless communication hotspot and sending SSID (service set identifier) and password information of the second wireless communication hotspot to a screen projection adapter in a first wireless communication mode;
after the communication connection with the screen projection adapter is established through the second wireless communication mode, screen projection data sent by the screen projection adapter is received through the second wireless communication mode, and the screen projection data are screen projection data sent to the screen projection adapter by the screen to be projected through the transmission interface.
5. The screen projection method of claim 4, wherein the step of controlling the screen projection device to establish a communication connection with the screen projection adapter through the first wireless communication mode comprises the steps of:
detecting a nearby first wireless communication broadcast;
when a first wireless communication broadcast named a preset name is detected, a first wireless communication connection is established with a screen projection adapter which emits the first wireless communication broadcast.
6. The screen projection method of claim 4, wherein receiving screen projection data sent by the screen projection adapter through the second wireless communication mode comprises:
sending the capability data of the screen projection equipment to a screen projection adapter through a first wireless communication mode or a second wireless communication mode, wherein the capability data of the screen projection equipment comprises one or more of video stream decoding capability, a supported transmission protocol, physical resolution and delay characteristic of display equipment of the screen projection equipment;
and receiving screen projection data sent by a screen projection adapter according to the screen projection equipment capability data received by the screen projection adapter in a second wireless communication mode, wherein the sending protocol comprises one or more of a transmission protocol, a coding format and a resolution ratio.
7. The screen projection method according to any one of claims 4 to 6, wherein the first wireless communication mode is a Bluetooth communication mode, and the second wireless communication mode is a WIFI communication mode.
8. A screen projection apparatus, comprising:
a memory for storing a program;
a processor coupled to the memory, the program when executed by the processor performing the screen projection method of any of claims 4-7.
9. A screen projection system, comprising:
the system comprises a sending end and a display end, wherein the sending end comprises a device to be projected with a screen and a screen projecting adapter, the device to be projected is a device which is provided with a transmission interface and needs to be projected with the screen, and the screen projecting adapter is coupled to the device to be projected with the screen through the transmission interface and supports a first wireless communication mode and a second wireless communication mode;
a screen projecting device as claimed in any one of claims 1 to 3.
10. A computer-readable storage medium comprising computer instructions which, when executed by a processor, implement the screen projection method of any one of claims 4-7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010648839.1A CN111541934B (en) | 2020-07-08 | 2020-07-08 | Screen projection equipment, method and system and computer readable storage medium |
| PCT/CN2021/098071 WO2022007557A1 (en) | 2020-07-08 | 2021-06-03 | Screen projection device, method and system, and computer-readable storage medium |
Applications Claiming Priority (1)
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| CN111541934B (en) * | 2020-07-08 | 2020-10-23 | 成都极米科技股份有限公司 | Screen projection equipment, method and system and computer readable storage medium |
| CN112346692A (en) * | 2020-11-09 | 2021-02-09 | 深圳康佳电子科技有限公司 | Screen projection data processing method and device and storage medium |
| CN112738621A (en) * | 2020-12-25 | 2021-04-30 | 广州长嘉电子有限公司 | Wireless screen projection method, device and system for non-smart television |
| CN112866804B (en) * | 2020-12-31 | 2023-08-11 | 努比亚技术有限公司 | Screen projection self-adaption method, mobile terminal and readable storage medium |
| CN113064683B (en) * | 2021-03-15 | 2023-12-05 | 无锡小天鹅电器有限公司 | Display method and system for control interface of electric control equipment, terminal and electric control equipment |
| CN112929240A (en) * | 2021-03-23 | 2021-06-08 | 北京字节跳动网络技术有限公司 | Method, device, terminal and non-transitory storage medium for acquiring communication delay time |
| CN113573314A (en) * | 2021-08-17 | 2021-10-29 | 联想(北京)有限公司 | Sharing method, electronic equipment and sharing system |
| CN114173183B (en) * | 2021-09-26 | 2023-01-24 | 荣耀终端有限公司 | Screen projection method and electronic equipment |
| CN114095764B (en) * | 2021-09-26 | 2023-01-06 | 荣耀终端有限公司 | Screen projection method and electronic equipment |
| CN115022852B (en) * | 2021-12-16 | 2023-10-20 | 荣耀终端有限公司 | Method for controlling Bluetooth transmission rate and electronic equipment |
| CN114125539B (en) * | 2022-01-28 | 2022-05-03 | 广州长嘉电子有限公司 | Intelligent large-screen device high-definition playing control method and system based on wireless transmission |
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| US20130117580A1 (en) * | 2011-11-07 | 2013-05-09 | Kien Hoe Daniel Chin | Compact universal wireless adapter |
| CN202488746U (en) * | 2012-01-13 | 2012-10-10 | 苏州中科半导体集成技术研发中心有限公司 | Wireless fidelity (WiFi) wireless internet adapter integrating bluetooth and universal serial bus (USB) interface of mobile multimedia |
| CN103514219A (en) * | 2012-06-29 | 2014-01-15 | 深圳市快播科技有限公司 | Method and system for sharing Web content between multiple terminals |
| CN102883449B (en) * | 2012-09-21 | 2016-08-03 | 腾讯科技（深圳）有限公司 | A kind of realize the method for data sharing, associated terminal and system |
| CN102946447B (en) * | 2012-12-11 | 2015-12-02 | 西南大学 | A kind of industrial equipment remote data transmission system and method |
| CN103281752A (en) * | 2013-05-28 | 2013-09-04 | 北京推博信息技术有限公司 | WIFI (wireless fidelity) network access method and device, electronic equipment and communication system |
| KR20150134674A (en) * | 2014-05-22 | 2015-12-02 | 삼성전자주식회사 | User terminal device, and Method for controlling for User terminal device, and multimedia system thereof |
| CN106155606A (en) * | 2015-04-07 | 2016-11-23 | 中国移动通信集团公司 | A kind of multi-screen interaction method and device |
| CN107135531A (en) * | 2017-04-21 | 2017-09-05 | 努比亚技术有限公司 | Resource share method and device |
| CN108322790B (en) * | 2018-01-30 | 2020-10-02 | 上海赛连信息科技有限公司 | Wireless screen transmission method and device |
| CN109922205A (en) * | 2018-11-29 | 2019-06-21 | 努比亚技术有限公司 | Throw screen implementation method, mobile terminal and computer readable storage medium |
| CN110312160A (en) * | 2019-06-17 | 2019-10-08 | 广州视源电子科技股份有限公司 | It is wireless to throw screen method, apparatus, Intelligent flat, terminal and system |
| CN110392047A (en) * | 2019-07-02 | 2019-10-29 | 华为技术有限公司 | Data transmission method, device and equipment |
| CN110381345B (en) * | 2019-07-05 | 2020-12-15 | 华为技术有限公司 | Screen projection display method and electronic equipment |
| CN110662209B (en) * | 2019-10-11 | 2023-06-06 | 北京奇艺世纪科技有限公司 | Screen-throwing equipment connection method and device in isolation network |
| CN111093105A (en) * | 2019-12-17 | 2020-05-01 | 青岛海信宽带多媒体技术有限公司 | Remote control method and device |
| CN111258526B (en) * | 2020-05-06 | 2020-08-28 | 上海幻电信息科技有限公司 | Screen projection method and system |
| CN111541934B (en) * | 2020-07-08 | 2020-10-23 | 成都极米科技股份有限公司 | Screen projection equipment, method and system and computer readable storage medium |
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| WO2022007557A1 (en) | 2022-01-13 |
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