CN114500725B

CN114500725B - Target content transmission method, master device, slave device, and storage medium

Info

Publication number: CN114500725B
Application number: CN202011271881.2A
Authority: CN
Inventors: 蔡双林; 薛清风
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2023-06-27
Anticipated expiration: 2040-11-13
Also published as: CN114500725A

Abstract

The embodiment of the invention provides a target content transmission method, master equipment, slave equipment and a storage medium. In the technical scheme provided by the embodiment of the invention, the master device receives an external device capability set sent by the slave device through the distributed communication connection established with the slave device, wherein the external device capability set comprises the external device name of the slave device; the method comprises the steps that a master device selects at least one first target content and at least one external device name through a target application, and sends the first target content to a slave device, so that at least one external device corresponding to the external device name outputs the first target content; and the master device receives the second target content input by the at least one external device transmitted from the slave device. According to the embodiment of the invention, the online interaction is performed through the cooperation of the master device and the slave device, so that the use experience of the online interaction of the user can be improved.

Description

Target content transmission method, master device, slave device, and storage medium

[ field of technology ]

The present invention relates to the field of computer technologies, and in particular, to a target content transmission method, a master device, a slave device, and a storage medium.

[ background Art ]

Current online education involves scenarios of interaction of both parties. At present, users all download and install on-line education APP on a mobile phone or a tablet to learn on line, but the screen of the mobile phone or the tablet is smaller, and the output capability of a camera and a loudspeaker is limited. When a user performs online learning on a mobile phone or a tablet, the characters on courseware are smaller due to the fact that the screen of the mobile phone or the tablet is smaller, the user cannot easily see clearly, the watching time is long, eyes are easy to fatigue, and eyes are injured; the loudspeaker of the mobile phone or the tablet is smaller, so that the playing volume is smaller, and therefore, a user can listen clearly only by approaching the mobile phone or the tablet when listening to the class; the camera of the mobile phone or the tablet has a limited wide angle, so that the user is inconvenient to interact with the teacher in video. Thus, the user experience of learning online is poor.

[ invention ]

In view of the above, the embodiments of the present invention provide a target content transmission method, a master device, a slave device, and a storage medium, which are capable of improving the use experience of online interaction of a user by performing online interaction cooperatively with the master device and the slave device.

In a first aspect, an embodiment of the present invention provides a target content transmission method, which is applied to a master device, where the method includes:

Receiving an external device capability set sent by a slave device through a distributed communication connection established with the slave device, wherein the external device capability set comprises an external device name of the slave device;

selecting at least one first target content and at least one external device name through a target application, and sending the first target content to the slave device so that at least one external device corresponding to the external device name outputs the first target content;

and receiving second target content input by at least one external device and sent by the slave device.

In one possible implementation manner, the receiving, through a distributed communication connection, an external device capability set sent by the slave device, where before the external device capability set includes an external device name of the slave device, the method further includes:

and establishing a distributed communication connection with the slave device through WiFi.

In one possible implementation manner, the establishing a distributed communication connection with the slave device through WiFi specifically includes:

discovering the slave device through bluetooth or the WiFi scan;

carrying out security authentication with the slave device;

and when the security authentication is successful, establishing a secure communication channel with the slave device through the WiFi according to a distributed protocol.

In one possible implementation, the slave device comprises a smart screen.

In one possible implementation, the external device includes: a screen, microphone, speaker or camera.

In one possible implementation, the second target content includes: video or audio.

In one possible implementation, the target application includes an online education APP.

In one possible implementation, the first target content includes an online class video, courseware, or chat interface.

In another aspect, an embodiment of the present invention provides a method for transmitting target content, which is applied to a slave device, where the method includes:

transmitting an external device capability set to a main device through a distributed communication connection established with the main device, wherein the external device capability set comprises an external device name;

receiving at least one first target content of a target application and at least one external device name, wherein the first target content and the external device name are sent by the main device;

outputting the first target content through at least one external device corresponding to the external device name, and sending the second target content input by the external device to the master device.

In one possible implementation, the method further includes, before sending, to the master device, an external device capability set including an external device name, through a distributed communication connection established with the master device:

and establishing distributed communication connection with the master device through WiFi.

In one possible implementation, the host device includes a cell phone or a tablet computer.

In another aspect, an embodiment of the present invention provides a host device, including a processor and a memory, where the memory is configured to store a computer program, the computer program including program instructions that, when executed by the processor, cause the host device to perform the steps of:

In one possible implementation, the program instructions, when executed by the processor, cause the master device to perform the steps of:

the method includes the steps that the external device capability set sent by the slave device is received through the distributed communication connection, and before the external device capability set includes the external device name of the slave device, the method further includes:

the establishing a distributed communication connection with the slave device through WiFi specifically comprises the following steps:

discovering the slave device through bluetooth or the WiFi scan;

carrying out security authentication with the slave device;

In one possible implementation, the slave device comprises a smart screen.

In another aspect, an embodiment of the present invention provides a slave device, including a processor and a memory, where the memory is configured to store a computer program, the computer program including program instructions that, when executed by the processor, cause the slave device to perform the steps of:

In one possible implementation, the program instructions, when executed by the processor, cause the slave device to perform the steps of:

transmitting an external device capability set to a main device through a distributed communication connection established with the main device, wherein before the external device capability set comprises an external device name, the method further comprises:

On the other hand, the embodiment of the invention provides a target content transmission system, which comprises a master device and a slave device;

the master device is configured to receive, through a distributed communication connection established with the slave device, an external device capability set sent by the slave device, where the external device capability set includes an external device name of the slave device; selecting at least one first target content and at least one external device name by a target application, and sending the first target content to the slave device; receiving second target content input by at least one external device and sent by the slave device;

The slave device is configured to send the external device capability set to the master device through the distributed communication connection; receiving at least one first target content and at least one external device name sent by the main device; outputting the first target content through at least one external device corresponding to the external device name, and sending the second target content input by the external device to the master device.

In one possible implementation, the slave device comprises a smart screen.

In another aspect, embodiments of the present invention provide a computer readable storage medium storing a computer program comprising program instructions which, when executed by a computer, cause the computer to perform a method as described above.

In the technical scheme of the target content transmission method, the master device, the slave device and the storage medium provided by the embodiment of the invention, the master device receives an external device capability set sent by the slave device through distributed communication connection established with the slave device, wherein the external device capability set comprises the external device name of the slave device; the method comprises the steps that a master device selects at least one first target content and at least one external device name through a target application, and sends the first target content to a slave device, so that at least one external device corresponding to the external device name outputs the first target content; and the master device receives the second target content input by the at least one external device transmitted from the slave device. According to the embodiment of the invention, the online interaction is performed through the cooperation of the master device and the slave device, so that the use experience of the online interaction of the user can be improved.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of a target content delivery system according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an online education APP interface;

FIG. 3 is a flowchart of a method for transmitting target content according to an embodiment of the present invention;

FIG. 4 is a flowchart of a method for transmitting target content according to another embodiment of the present invention;

FIG. 5 is a flowchart illustrating a master device establishing a distributed communication connection with a slave device via WiFi in FIG. 4;

fig. 6 is a schematic structural diagram of a master device according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of the first setup unit of FIG. 6;

FIG. 8 is a schematic structural diagram of a slave device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

[ detailed description ] of the invention

For a better understanding of the technical solution of the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in 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 be understood that the term "and/or" as used herein is merely one way of describing an association of associated objects, meaning that there may be three relationships, e.g., a and/or b, which may represent: the first and second cases exist separately, and the first and second cases exist separately. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the related art, users download and install an online education APP on a mobile phone or a tablet to perform online learning, but the screen of the mobile phone or the tablet is smaller, and the output capability of a camera and a loudspeaker is limited, so that the online learning experience of the users is poor.

In order to solve the technical problems described above, embodiments of the present invention provide a target content transmission method, a master device, a slave device, and a storage medium.

Referring to fig. 1, fig. 1 is a schematic diagram of a target content transmission system according to an embodiment of the present invention. The target content transmission system of the embodiment of the invention comprises two electronic devices, wherein the two electronic devices can comprise a master device and a slave device. Wireless transmissions may be made between the master device and the slave device. As shown in fig. 1, the target content transmission system includes a master device 100 and a slave device 200. The master device 100 and the slave device 200 may perform wireless transmission, for example: the wireless transmission includes a WiFi transmission. Further, a distributed communication connection is established between the master device 100 and the slave device 200 through WiFi. The main device 100 comprises a target application, a first screen projection module and a first distributed communication module; the slave device 200 includes a screen, a camera, a speaker, a microphone, a second projection module, and a second distributed communication module.

In the embodiment of the invention, the target application comprises an online education APP. As shown in fig. 2, the interface of the online education APP includes an online lesson video, courseware, or chat interface.

In fig. 1, the first screen capturing module is configured to obtain first target content through a target application, and send at least one first target content to the second screen capturing module of the slave device 200 according to a screen capturing protocol. Specifically, the first screen projection module is configured to call the operating system through the target application to obtain first target content, and send at least one first target content to the second screen projection module of the slave device 200 according to the screen projection protocol. The first distributed communication module is configured to establish a distributed communication connection with the second distributed communication module of the slave device 200 through WiFi, receive an external device capability set sent by the slave device 200, where the external device capability set includes an external device name of the slave device 100, and send the first target content to the second distributed communication module through the distributed communication connection according to at least one first target content selected by calling the operating system through the target application and the selected at least one external device name, so that at least one external device corresponding to the selected at least one external device name outputs the first target content, and receive the second target content input by the at least one external device sent by the second distributed communication module.

In the embodiment of the invention, the first target content comprises an online class video, courseware or chat interface.

In the embodiment of the present invention, after the slave device 200 sends the external device capability set to the master device 100, the user may view the icon corresponding to the external device of the slave device 200 on the master device 100.

In an embodiment of the present invention, the second target content includes video or audio.

In fig. 1, the second screen-projection module is configured to display at least one first target content sent by the master device 100 on a screen of the slave device 200 according to a screen-projection protocol; the second distributed communication module virtualizes at least one external device of the slave device 200 to an external device of the master device 100 through a distributed communication connection established with the master device 100 by WiFi; external devices of the slave device 200 include a screen, a camera, a speaker, and a microphone. The second distributed communication module is further configured to send, through a distributed communication connection, second target content collected by at least one external device to the first distributed communication module of the master device 100.

In fig. 1, examples of master device 100 and slave device 200 include, but are not limited to, electronic devices that host iOS, android, microsoft or other operating systems. Optionally, the host device 100 includes a cell phone or tablet computer; the slave device 200 comprises a smart screen.

In fig. 1, before the first distributed communication module and the second distributed communication module establish a distributed communication connection, security authentication needs to be performed between the first distributed communication module and the second distributed communication module, and when the security authentication is successful, the first distributed communication module and the second distributed communication module establish a secure communication channel through WiFi according to a distributed protocol. Wherein the master device 100 may discover the slave device 200 through bluetooth or WiFi scanning before the master device 100 and the slave device 200 perform security authentication.

In the embodiment of the present invention, before the master device 100 and the slave device 200 establish a distributed communication connection, the master device 100 and the slave device 200 need to be connected through WiFi. Specifically, the master device 100 and the slave device 200 are connected through a WiFi router, or the slave device 200 is connected to a WiFi hotspot of the master device 100, or the master device 100 is connected to a WiFi hotspot of the slave device 200.

Based on the architecture diagram provided in fig. 1, an embodiment of the present invention provides a target content transmission method. Fig. 3 is a flowchart of a method for transmitting target content according to an embodiment of the present invention. As shown in fig. 3, the method includes:

step 102, the master device receives an external device capability set sent by the slave device through the distributed communication connection established with the slave device, wherein the external device capability set comprises an external device name.

Step 104, the master device selects at least one first target content and at least one external device name through the target application.

Specifically, the host device invokes the at least one first target content selected by the operating system and the selected at least one external device name according to the target application.

Step 106, the master device sends the first target content to the slave device.

Step 108, the slave device outputs the first target content through at least one external device corresponding to the external device name.

Step 110, the slave device sends the second target content input by the external device to the master device.

In the target content transmission method provided by the embodiment of the invention, the master device receives an external device capability set sent by the slave device through the distributed communication connection established with the slave device, wherein the external device capability set comprises the external device name of the slave device; the method comprises the steps that a master device selects at least one first target content and at least one external device name through a target application, and sends the first target content to a slave device, so that at least one external device corresponding to the external device name outputs the first target content; and the master device receives the second target content input by the at least one external device transmitted from the slave device. According to the embodiment of the invention, the online interaction is performed through the cooperation of the master device and the slave device, so that the use experience of the online interaction of the user can be improved.

Based on the architecture diagram provided in fig. 1, an embodiment of the present invention provides a target content transmission method. Fig. 3 is a flowchart of a method for transmitting target content according to another embodiment of the present invention. As shown in fig. 3, the method includes:

step 202, the master device establishes a distributed communication connection with the slave device through WiFi.

In the embodiment of the invention, the main equipment comprises a mobile phone or a tablet personal computer.

In an embodiment of the invention, the slave device comprises an intelligent screen.

In the embodiment of the invention, before the master device and the slave device establish the distributed communication connection, the master device and the slave device are required to be connected through WiFi. Specifically, the master device and the slave device are connected through a WiFi router, or the slave device is connected with a WiFi hotspot of the master device, or the master device is connected with a WiFi hotspot of the slave device.

In an embodiment of the present invention, as shown in fig. 5, step 202 specifically includes:

step 2022, the master discovers the slave by bluetooth or WiFi scanning.

Step 2024, the master device performs security authentication with the slave device.

The master device sends an authentication request and a password of the master device to the slave device, the slave device responds to the authentication request to display whether prompt information of connection with the slave device, if the slave device receives the operation of confirming connection input by a user, an authentication passing message is generated, and the authentication passing message and the password of the slave device are sent to the master device; and if the slave equipment receives the connection canceling operation input by the user, generating an authentication failure message, and sending the authentication failure message to the master equipment.

The user logs in the user account on the master device and the slave device respectively, the master device sends an authentication request to the slave device, the authentication request comprises the user account of the master device, the slave device verifies whether the user account of the master device and the user account of the slave device are the same user account, and if the user account of the master device and the user account of the slave device are the same user account, a message passing authentication is sent to the master device; and if the user account of the master device and the user account of the slave device are not the same user account, sending a message of authentication failure to the master device. For example: the user account includes a Hua as an account.

It should be noted that the master device and the slave device may also perform security authentication in other manners, which is not limited by the present invention.

Step 2026, when the security authentication is successful, the master device establishes a secure communication channel with the slave device through WiFi according to the distributed protocol.

Step 204, the slave device sends an external device capability set to the master device through the distributed communication connection established with the master device, wherein the external device capability set includes the external device name of the slave device.

In an embodiment of the present invention, an external device includes: a screen, microphone, speaker or camera.

In the embodiment of the invention, after the slave device sends the external device capability set to the master device, the user can view the external device name corresponding to the external device of the slave device on the master device. Wherein the external device name includes text or an icon.

Step 206, the master device selects at least one first target content and at least one external device name through the target application. The first target content is sent to the slave device.

In the embodiment of the invention, the target application comprises an online education APP.

Step 208, the master device sends the first target content to the slave device.

Step 210, the slave device outputs the first target content through at least one external device corresponding to the external device name.

Step 212, the slave device sends the second target content input by the external device to the master device.

In the embodiment of the present invention, the second target content includes: video or audio.

For example, a user can select to send online class videos and courseware to the slave device in the online education APP of the mobile phone, and simultaneously, the screen, the loudspeaker and the microphone of the slave device are started by selecting the icons of the screen, the loudspeaker, the microphone and the camera of the slave device, so that the online class videos and the courseware are displayed through the screen of the slave device, the sound of the online class videos is played through the loudspeaker, the sound of the user is collected through the microphone, and the video is collected through the camera. The slave device sends the video collected by the camera and the audio collected by the microphone to the master device. The main equipment sends the audio and the video to the online education client of the teacher through the online education APP, so that video interaction between the user and the teacher in online education is realized.

In the embodiment of the present invention, after step 208, when the user needs to input the content in the target application, the host device invokes the operating system through the target application to receive the content input by the user, and sends the content input by the user. For example, when a user answers a chat interface of the online education APP, the user still calls an operating system of the mobile phone or the tablet to receive content input by the user through the online education APP and sends the content input by the user to an online education client of a teacher in consideration of the characteristic that the user is more convenient to input compared with a smart screen mobile phone or the tablet.

In the embodiment of the invention, in order to improve the experience of a user in the online learning process, the screen, the microphone, the loudspeaker and the camera on the intelligent screen are virtualized into the external equipment of the mobile phone or the intelligent screen through the distributed interaction capability between the mobile phone or the intelligent screen and the intelligent screen, and the user can obtain better online lesson learning experience by utilizing the larger screen display on the intelligent screen, the far-field pickup of multiple microphones, the loud loudspeaker and the ultra-wide-angle camera capability.

The method for transmitting target content according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 5, and the device embodiment of the present invention will be described in detail below with reference to fig. 6 to 8. It should be understood that, the electronic device in the embodiment of the present invention may perform the methods of the foregoing embodiments of the present invention, that is, specific working processes of the following various products may refer to corresponding processes in the foregoing method embodiments.

Fig. 6 is a schematic block diagram of a master device 100 of an embodiment of the present invention. It should be appreciated that the master device 100 is capable of performing the steps in the methods of fig. 3-5, and will not be described in detail herein to avoid repetition. The master device 100 includes: a first establishing unit 11 and a first transceiving unit 12.

A first establishing unit 11 is configured to establish a distributed communication connection with the slave device through WiFi.

Optionally, the master device comprises a cell phone or a tablet computer.

Optionally, the slave device comprises a smart screen.

Alternatively, as shown in fig. 7, the first establishing unit 11 specifically includes: a scanning subunit 111, an authentication subunit 112, a setup subunit 113.

A scanning subunit 111 for discovering slave devices by bluetooth or WiFi scanning.

An authentication subunit 112, configured to perform security authentication with the slave device.

The establishing subunit 113 is configured to establish, when the security authentication is successful, a secure communication channel with the slave device through WiFi according to the distributed protocol.

A first transceiver unit 12, configured to receive, through a distributed communication connection, an external device capability set sent by a slave device, where the external device capability set includes an external device name of the slave device;

optionally, the external device includes: a screen, microphone, speaker or camera.

The first transceiving unit 12 is further configured to transmit the first target content to the slave device according to at least one first target content selected by the target application and the selected at least one external device name, so that the at least one external device corresponding to the external device name outputs the first target content.

Optionally, the target application comprises an online education APP.

Optionally, the first target content comprises an online lesson video, courseware, or chat interface.

The first transceiving unit 12 is further used for receiving second target content input from at least one external device transmitted from a device.

Optionally, the second target content includes: video or audio.

Fig. 8 is a schematic block diagram of a slave device 200 of an embodiment of the present invention. It should be appreciated that the slave device 200 is capable of performing the steps in the method of fig. 3 to 5, and will not be described in detail here in order to avoid repetition. The slave device 200 includes: a second setup unit 21, a second transceiving unit 22 and an output unit 23.

A second establishing unit 21 is configured to establish a distributed communication connection with the master device through WiFi.

Optionally, the master device comprises a cell phone or a tablet computer.

Optionally, the slave device comprises a smart screen.

The second transceiver unit 22 is configured to send, to the master device, an external device capability set, including an external device name, through a distributed communication connection.

The second transceiver unit 22 is further configured to receive at least one first target content and at least one external device name of a target application sent by the host device.

Optionally, the target application comprises an online education APP.

An output unit 23 for outputting the first target content through at least one external device corresponding to the external device name.

The second transceiver unit 22 is further configured to send the second target content input by the external device to the host device.

Optionally, the second target content includes: video or audio.

It should be understood that the master device 100 and the slave device 200 herein are embodied in the form of functional units. The term "unit" herein may be implemented in software and/or hardware, without specific limitation. For example, a "unit" may be a software program, a hardware circuit or a combination of both that implements the functions described above. The hardware circuitry may include application specific integrated circuits (application specific integrated circuit, ASICs), electronic circuits, processors (e.g., shared, proprietary, or group processors, etc.) and memory for executing one or more software or firmware programs, merged logic circuits, and/or other suitable components that support the described functions.

Thus, the elements of the examples described in the embodiments of the present invention can be implemented in electronic hardware, or in a combination 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 solution. 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 invention.

The embodiment of the invention provides electronic equipment which can be terminal equipment or circuit equipment built in the terminal equipment. The electronic device, including the master device or the slave device described above, may be adapted to perform the functions/steps of the method embodiments described above.

Fig. 9 is a schematic structural diagram of an electronic device 300 according to an embodiment of the present invention. The electronic device 300 may include a processor 310, an external memory interface 320, an internal memory 321, a universal serial bus (universal serial bus, USB) interface 330, a charge management module 340, a power management module 341, a battery 342, an antenna 1, an antenna 2, a mobile communication module 350, a wireless communication module 360, an audio module 370, a speaker 370A, a receiver 370B, a microphone 370C, an ear-piece interface 370D, a sensor module 380, keys 390, a motor 391, an indicator 392, a camera 393, a display screen 394, and a user identification module (subscriber identification module, SIM) card interface 395, among others. The sensor module 380 may include a pressure sensor 380A, a gyroscope sensor 380B, an air pressure sensor 380C, a magnetic sensor 380D, an acceleration sensor 380E, a distance sensor 380F, a proximity sensor 380G, a fingerprint sensor 380H, a temperature sensor 380J, a touch sensor 380K, an ambient light sensor 380L, a bone conduction sensor 380M, and the like.

It should be understood that the illustrated structure of the embodiment of the present invention does not constitute a specific limitation on the electronic device 300. In other embodiments of the present application, electronic device 300 may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 310 may include one or more processing units, such as: the processor 310 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.

A memory may also be provided in the processor 310 for storing instructions and data. In some embodiments, the memory in the processor 310 is a cache memory. The memory may hold instructions or data that the processor 310 has just used or recycled. If the processor 310 needs to reuse the instruction or data, it may be called directly from the memory. Repeated accesses are avoided and the latency of the processor 310 is reduced, thereby improving the efficiency of the system.

In some embodiments, processor 310 may include one or more interfaces. The interfaces may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous receiver transmitter (universal asynchronous receiver/transmitter, UART) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose input/output (GPIO) interface, a subscriber identity module (subscriber identity module, SIM) interface, and/or a universal serial bus (universal serial bus, USB) interface, among others.

The I2C interface is a bi-directional synchronous serial bus comprising a serial data line (SDA) and a serial clock line (derail clock line, SCL). In some embodiments, the processor 310 may contain multiple sets of I2C buses. The processor 310 may be coupled to the touch sensor 380K, charger, flash, camera 393, etc., respectively, via different I2C bus interfaces. For example: the processor 310 may couple the touch sensor 380K through an I2C interface, such that the processor 310 communicates with the touch sensor 380K through an I2C bus interface, implementing the touch functionality of the electronic device 300.

The I2S interface may be used for audio communication. In some embodiments, the processor 310 may contain multiple sets of I2S buses. The processor 310 may be coupled to the audio module 170 via an I2S bus to enable communication between the processor 310 and the audio module 370. In some embodiments, the audio module 370 may communicate audio signals to the wireless communication module 360 via the I2S interface to enable answering calls via the bluetooth headset.

PCM interfaces may also be used for audio communication to sample, quantize and encode analog signals. In some embodiments, the audio module 370 and the wireless communication module 360 may be coupled by a PCM bus interface. In some embodiments, the audio module 370 may also transmit audio signals to the wireless communication module 360 via the PCM interface to enable phone answering via the bluetooth headset. Both the I2S interface and the PCM interface may be used for audio communication.

The UART interface is a universal serial data bus for asynchronous communications. The bus may be a bi-directional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is typically used to connect the processor 310 with the wireless communication module 360. For example: the processor 310 communicates with a bluetooth module in the wireless communication module 360 through a UART interface to implement a bluetooth function. In some embodiments, the audio module 370 may transmit audio signals to the wireless communication module 360 through a UART interface to implement a function of playing music through a bluetooth headset.

The MIPI interface may be used to connect the processor 310 to peripheral devices such as the display screen 394, the camera 393, and the like. The MIPI interfaces include camera serial interfaces (camera serial interface, CSI), display serial interfaces (display serial interface, DSI), and the like. In some embodiments, processor 310 and camera 393 communicate through a CSI interface, implementing the photographing function of electronic device 300. The processor 310 and the display screen 394 communicate via a DSI interface to implement the display functions of the electronic device 300.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal or as a data signal. In some embodiments, a GPIO interface may be used to connect processor 310 with camera 393, display 394, wireless communication module 360, audio module 370, sensor module 380, and the like. The GPIO interface may also be configured as an I2C interface, an I2S interface, a UART interface, an MIPI interface, etc.

The USB interface 330 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 330 may be used to connect a charger to charge the electronic device 300, or may be used to transfer data between the electronic device 300 and a peripheral device. And can also be used for connecting with a headset, and playing audio through the headset. The interface may also be used to connect other electronic devices, such as AR devices, etc.

It should be understood that the interfacing relationship between the modules illustrated in the embodiments of the present invention is only illustrative, and is not meant to limit the structure of the electronic device 300. In other embodiments of the present application, the electronic device 300 may also use different interfacing manners, or a combination of multiple interfacing manners in the foregoing embodiments.

The charge management module 340 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charge management module 340 may receive a charging input of a wired charger through the USB interface 330. In some wireless charging embodiments, the charge management module 340 may receive wireless charging input through a wireless charging coil of the electronic device 300. The battery 342 is charged by the charge management module 340, and the electronic device may be powered by the power management module 341.

The power management module 341 is configured to connect the battery 342, the charge management module 340 and the processor 310. The power management module 341 receives input from the battery 342 and/or the charge management module 340 to power the processor 310, the internal memory 321, the display screen 394, the camera 393, the wireless communication module 360, and the like. The power management module 341 may also be configured to monitor battery capacity, battery cycle number, battery health (leakage, impedance), and other parameters. In other embodiments, the power management module 341 may also be disposed in the processor 310. In other embodiments, the power management module 341 and the charging management module 340 may also be disposed in the same device.

The wireless communication function of the electronic device 300 may be implemented by the antenna 1, the antenna 2, the mobile communication module 350, the wireless communication module 360, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 300 may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed into a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 350 may provide a solution for wireless communication, including 2G/3G/4G/5G, etc., applied on the electronic device 300. The mobile communication module 350 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The mobile communication module 350 may receive electromagnetic waves from the antenna 1, perform processes such as filtering, amplifying, and the like on the received electromagnetic waves, and transmit the processed electromagnetic waves to the modem processor for demodulation. The mobile communication module 350 may amplify the signal modulated by the modem processor, and convert the signal into electromagnetic waves through the antenna 1 to radiate the electromagnetic waves. In some embodiments, at least some of the functional modules of the mobile communication module 350 may be disposed in the processor 310. In some embodiments, at least some of the functional modules of the mobile communication module 350 may be provided in the same device as at least some of the modules of the processor 310.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs sound signals through an audio device (not limited to speaker 370A, receiver 370B, etc.), or displays images or video through display screen 394. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 350 or other functional module, independent of the processor 310.

The wireless communication module 360 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technology (near field communication, NFC), infrared technology (IR), etc., as applied to the electronic device 300. The wireless communication module 360 may be one or more devices that integrate at least one communication processing module. The wireless communication module 360 receives electromagnetic waves via the antenna 2, modulates the electromagnetic wave signals, filters the electromagnetic wave signals, and transmits the processed signals to the processor 310. The wireless communication module 360 may also receive a signal to be transmitted from the processor 310, frequency modulate it, amplify it, and convert it to electromagnetic waves for radiation via the antenna 2.

In some embodiments, antenna 1 and mobile communication module 350 of electronic device 300 are coupled, and antenna 2 and wireless communication module 360 are coupled, such that electronic device 300 may communicate with a network and other devices via wireless communication techniques. The wireless communication techniques may include the Global System for Mobile communications (global system for mobile communications, GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a beidou satellite navigation system (beidou navigation satellite system, BDS), a quasi zenith satellite system (quasi-zenith satellite system, QZSS) and/or a satellite based augmentation system (satellite based augmentation systems, SBAS).

The electronic device 300 implements display functions through a GPU, a display screen 394, an application processor, and the like. The GPU is a microprocessor for image processing, connected to the display screen 394 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 310 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 394 is used for displaying images, videos, and the like. The display screen 394 includes a display panel. The display panel may employ a liquid crystal display (liquid crystal display, LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED) or an active-matrix organic light-emitting diode (matrix organic light emitting diode), a flexible light-emitting diode (flex), a mini, a Micro led, a Micro-OLED, a quantum dot light-emitting diode (quantum dot light emitting diodes, QLED), or the like. In some embodiments, the electronic device 300 may include 1 or N display screens 394, N being a positive integer greater than 1.

Electronic device 300 may implement capture functionality through an ISP, camera 393, video codec, GPU, display 394, and application processor, among others.

The ISP is used to process the data fed back by camera 393. For example, when photographing, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electric signal, and the camera photosensitive element transmits the electric signal to the ISP for processing and is converted into an image visible to naked eyes. ISP can also optimize the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in the camera 393.

Camera 393 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (charge coupled device, CCD) or a Complementary Metal Oxide Semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, which is then transferred to the ISP to be converted into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV, or the like format. In some embodiments, electronic device 300 may include 1 or N cameras 393, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process other digital signals besides digital image signals. For example, when the electronic device 300 is selecting a frequency bin, the digital signal processor is used to fourier transform the frequency bin energy, or the like.

Video codecs are used to compress or decompress digital video. The electronic device 300 may support one or more video codecs. Thus, the electronic device 300 may play or record video in a variety of encoding formats, such as: dynamic picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4, etc.

The NPU is a neural-network (NN) computing processor, and can rapidly process input information by referencing a biological neural network structure, for example, referencing a transmission mode between human brain neurons, and can also continuously perform self-learning. Applications such as intelligent cognition of the electronic device 300 may be implemented by the NPU, for example: image recognition, face recognition, speech recognition, text understanding, etc.

The external memory interface 320 may be used to connect an external memory card, such as a Micro SD card, to enable expansion of the memory capabilities of the electronic device 300. The external memory card communicates with the processor 310 through an external memory interface 320 to implement data storage functions. For example, files such as music, video, etc. are stored in an external memory card.

The internal memory 321 may be used to store computer executable program code comprising instructions. The internal memory 321 may include a storage program area and a storage data area. The storage program area may store an application program (such as a sound playing function, an image playing function, etc.) required for at least one function of the operating system, etc. The storage data area may store data created during use of the electronic device 300 (e.g., audio data, phonebook, etc.), and so on. In addition, the internal memory 321 may include a high-speed random access memory, and may also include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (universal flash storage, UFS), and the like. The processor 310 performs various functional applications of the electronic device 300 and data processing by executing instructions stored in the internal memory 321, and/or instructions stored in a memory provided in the processor.

The electronic device 300 may implement audio functionality through an audio module 370, a speaker 370A, a receiver 370B, a microphone 370C, an ear-headphone interface 370D, and an application processor, among others. Such as music playing, recording, etc.

The audio module 370 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 370 may also be used to encode and decode audio signals. In some embodiments, the audio module 370 may be disposed in the processor 310, or some of the functional modules of the audio module 370 may be disposed in the processor 310.

Speaker 370A, also known as a "horn," is used to convert audio electrical signals into sound signals. The electronic device 300 may listen to music, or to hands-free conversations, through the speaker 370A.

A receiver 370B, also referred to as a "earpiece", is used to convert the audio electrical signal into a sound signal. When electronic device 300 is answering a telephone call or voice message, voice may be received by placing receiver 370B close to the human ear.

Microphone 370C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can sound near the microphone 370C through the mouth, inputting a sound signal to the microphone 370C. The electronic device 300 may be provided with at least one microphone 370C. In other embodiments, the electronic device 300 may be provided with two microphones 370C, and may implement a noise reduction function in addition to collecting sound signals. In other embodiments, the electronic device 300 may also be provided with three, four, or more microphones 370C to enable collection of sound signals, noise reduction, identification of sound sources, directional recording functions, etc.

The earphone interface 370D is for connecting a wired earphone. The headset interface 370D may be a USB interface 330 or a 3.5mm open mobile electronic device platform (open mobile terminal platform, OMTP) standard interface, a american cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The pressure sensor 380A is configured to sense a pressure signal and convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 380A may be disposed on the display screen 394. Pressure sensor 380A

Such as resistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, etc. The capacitive pressure sensor may be a capacitive pressure sensor comprising at least two parallel plates with conductive material. When a force is applied to the pressure sensor 380A, the capacitance between the electrodes changes. The electronic device 300 determines the strength of the pressure from the change in capacitance. When a touch operation is applied to the display screen 394, the electronic apparatus 300 detects the touch operation intensity according to the pressure sensor 380A. The electronic device 300 may also calculate the location of the touch based on the detection signal of the pressure sensor 380A. In some embodiments, touch operations that act on the same touch location, but at different touch operation strengths, may correspond to different operation instructions. For example: and executing an instruction for checking the short message when the touch operation with the touch operation intensity smaller than the first pressure threshold acts on the short message application icon. And executing an instruction for newly creating the short message when the touch operation with the touch operation intensity being greater than or equal to the first pressure threshold acts on the short message application icon.

The gyro sensor 380B may be used to determine a motion gesture of the electronic device 300. In some embodiments, the angular velocity of electronic device 300 about three axes (i.e., x, y, and z axes) may be determined by gyro sensor 380B. The gyro sensor 380B may be used for photographing anti-shake. For example, when the shutter is pressed, the gyro sensor 380B detects the shake angle of the electronic device 300, calculates the distance to be compensated by the lens module according to the angle, and makes the lens counteract the shake of the electronic device 300 through the reverse motion, so as to realize anti-shake. The gyro sensor 380B may also be used for navigating, somatosensory game scenes.

The air pressure sensor 380C is used to measure air pressure. In some embodiments, the electronic device 300 calculates altitude from barometric pressure values measured by the barometric pressure sensor 380C, aiding in positioning and navigation.

The magnetic sensor 380D includes a hall sensor. The electronic device 300 may detect the opening and closing of the flip holster using the magnetic sensor 380D. In some embodiments, when the electronic device 300 is a flip machine, the electronic device 300 may detect the opening and closing of the flip according to the magnetic sensor 380D. And then according to the detected opening and closing state of the leather sheath or the opening and closing state of the flip, the characteristics of automatic unlocking of the flip and the like are set.

The acceleration sensor 380E may detect the magnitude of acceleration of the electronic device 300 in various directions (typically three axes). The magnitude and direction of gravity may be detected when the electronic device 300 is stationary. The electronic equipment gesture recognition method can also be used for recognizing the gesture of the electronic equipment, and is applied to horizontal and vertical screen switching, pedometers and other applications.

A distance sensor 380F for measuring distance. The electronic device 300 may measure the distance by infrared or laser. In some embodiments, the electronic device 300 may range using the distance sensor 380F to achieve fast focus.

The proximity light sensor 380G may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The electronic device 300 emits infrared light outward through the light emitting diode. The electronic device 300 uses a photodiode to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it may be determined that an object is in the vicinity of the electronic device 300. When insufficient reflected light is detected, the electronic device 300 may determine that there is no object in the vicinity of the electronic device 300. The electronic device 300 can detect that the user holds the electronic device 300 close to the ear by using the proximity light sensor 380G, so as to automatically extinguish the screen to achieve the purpose of saving power. The proximity light sensor 380G may also be used in holster mode, pocket mode to automatically unlock and lock the screen.

The ambient light sensor 380L is used to sense ambient light level. The electronic device 300 may adaptively adjust the brightness of the display screen 394 based on the perceived ambient light level. The ambient light sensor 380L may also be used to automatically adjust white balance during photographing. The ambient light sensor 380L may also cooperate with the proximity light sensor 380G to detect if the electronic device 300 is in a pocket to prevent false touches.

The fingerprint sensor 380H is used to collect a fingerprint. The electronic device 300 can utilize the collected fingerprint characteristics to realize fingerprint unlocking, access an application lock, fingerprint photographing, fingerprint incoming call answering and the like.

The temperature sensor 380J is used to detect temperature. In some embodiments, the electronic device 300 performs a temperature processing strategy using the temperature detected by the temperature sensor 380J. For example, when the temperature reported by temperature sensor 380J exceeds a threshold, electronic device 300 performs a reduction in performance of a processor located in the vicinity of temperature sensor 380J in order to reduce power consumption to implement thermal protection. In other embodiments, when the temperature is below another threshold, the electronic device 300 heats the battery 342 to avoid the low temperature causing the electronic device 300 to shut down abnormally. In other embodiments, when the temperature is below a further threshold, the electronic device 300 performs boosting of the output voltage of the battery 342 to avoid abnormal shutdown caused by low temperatures.

Touch sensor 380K, also known as a "touch device". The touch sensor 380K may be disposed on the display screen 394, and the touch sensor 380K and the display screen 394 form a touch screen, which is also referred to as a "touch screen". The touch sensor 380K is for detecting a touch operation acting thereon or thereabout. The touch sensor may communicate the detected touch operation to the application processor to determine the touch event type. Visual output related to touch operations may be provided through the display screen 394. In other embodiments, touch sensor 380K may also be located on a surface of electronic device 300 other than at display 394.

The bone conduction sensor 380M may acquire a vibration signal. In some embodiments, bone conduction sensor 380M may acquire a vibration signal of a human vocal tract vibrating bone pieces. The bone conduction sensor 380M may also contact the pulse of the human body to receive the blood pressure pulsation signal. In some embodiments, bone conduction sensor 380M may also be provided in the headset, in combination with an osteoinductive headset. The audio module 370 may analyze the voice signal based on the vibration signal of the sound portion vibration bone block obtained by the bone conduction sensor 380M, so as to implement a voice function. The application processor can analyze heart rate information based on the blood pressure beat signals acquired by the bone conduction sensor 380M, so as to realize a heart rate detection function.

The keys 390 include a power on key, a volume key, etc. Key 390 may be a mechanical key. Or may be a touch key. The electronic device 300 may receive key inputs, generating key signal inputs related to user settings and function controls of the electronic device 300.

The motor 391 may generate a vibration alert. The motor 391 may be used for incoming call vibration alerting as well as for touch vibration feedback. For example, touch operations acting on different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects. The motor 391 may also correspond to different vibration feedback effects by touch operations applied to different areas of the display screen 394. Different application scenarios (such as time reminding, receiving information, alarm clock, game, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect may also support customization.

The indicator 392 may be an indicator light, which may be used to indicate a state of charge, a change in charge, a message indicating a missed call, a notification, etc.

The SIM card interface 395 is for interfacing with a SIM card. The SIM card may be inserted into the SIM card interface 395 or removed from the SIM card interface 395 to enable contact and separation with the electronic device 300. The electronic device 300 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 395 may support Nano SIM cards, micro SIM cards, and the like. The same SIM card interface 395 can be used to insert multiple cards simultaneously. The types of the plurality of cards may be the same or different. The SIM card interface 395 may also be compatible with different types of SIM cards. The SIM card interface 395 may also be compatible with external memory cards. The electronic device 300 interacts with the network through the SIM card to realize functions such as communication and data communication. In some embodiments, the electronic device 300 employs esims, namely: an embedded SIM card. The eSIM card can be embedded in the electronic device 300 and cannot be separated from the electronic device 300.

Embodiments of the present invention provide a computer-readable storage medium having instructions stored therein that, when executed on a terminal device, cause the terminal device to perform the steps performed by a master device or a slave device in the target content transmission method as shown in fig. 3 to 5 described above.

Embodiments of the present invention also provide a computer program product comprising instructions which, when executed on a computer or on any of the at least one processors, cause the computer to perform the steps of the method for targeted content delivery as shown in fig. 3 to 5, as performed by a master device or a slave device.

In the embodiments of the present invention, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relation of association objects, and indicates that there may be three kinds of relations, for example, a and/or B, and may indicate that a alone exists, a and B together, and B alone exists. Wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of the following" and the like means any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in the embodiments disclosed herein can be implemented as a combination of electronic hardware, 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 solution. 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 invention.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In several embodiments provided by the present invention, any of 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 this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing an electronic device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely exemplary embodiments of the present invention, and any person skilled in the art may easily conceive of changes or substitutions within the technical scope of the present invention, which should be covered by the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method of targeted content delivery, characterized by being applied to a host device, the method comprising:

responding to the operation of selecting at least one first target content and at least one external device name in a target application by a user, and sending the at least one first target content and the at least one external device name selected by the user to the slave device so as to enable the external device corresponding to the at least one external device name to output the at least one first target content;

and receiving second target content input by the external device corresponding to the at least one external device name sent by the slave device.

2. The method of claim 1, wherein the receiving, via the distributed communication connection, the external device capability set sent by the slave device, the external device capability set including, before the external device name of the slave device, further comprises:

3. The method according to claim 2, wherein the establishing a distributed communication connection with the slave device via WiFi specifically comprises:

discovering the slave device through bluetooth or the WiFi scan;

carrying out security authentication with the slave device;

4. A method according to claim 3, wherein the slave device comprises a smart screen.

5. The method of claim 1, wherein the external device comprises: a screen, microphone, speaker or camera.

6. The method of claim 5, wherein the second target content comprises: video or audio.

7. The method of claim 1, wherein the target application comprises an online education APP.

8. The method of claim 7, wherein the first target content comprises an online lesson video, courseware, or chat interface.

9. A target content transmission method, characterized by being applied to a slave device, the method comprising:

transmitting an external device capability set to a host device through a distributed communication connection established with the host device, the external device capability set including an external device name, so that the host device responds to an operation of a user selecting at least one first target content and at least one external device name in a target application;

receiving the at least one first target content and the at least one external device name sent by the main device;

outputting the at least one first target content through the external device corresponding to the at least one external device name, and transmitting the second target content input by the external device corresponding to the at least one external device name to the master device.

10. The method of claim 9, wherein the sending the set of external device capabilities to the master device via the distributed communication connection established with the master device, the set of external device capabilities including the external device name is preceded by:

11. The method of claim 10, wherein the host device comprises a cell phone or a tablet computer.

12. The method of claim 9, wherein the external device comprises: a screen, microphone, speaker or camera.

13. The method of claim 12, wherein the second target content comprises video or audio.

14. The method of claim 9, wherein the target application comprises an online education APP.

15. The method of claim 14, wherein the first target content comprises an online lesson video, courseware, or chat interface.

16. A host device comprising a processor and a memory, wherein the memory is for storing a computer program comprising program instructions that when executed by the processor cause the host device to perform the steps of:

17. The master device of claim 16, wherein the program instructions, when executed by the processor, cause the master device to:

18. The master device of claim 17, wherein the program instructions, when executed by the processor, cause the master device to:

Discovering the slave device through bluetooth or the WiFi scan;

carrying out security authentication with the slave device;

19. The master device of claim 18, wherein the slave device comprises a smart screen.

20. The master device of claim 16, wherein the external device comprises: a screen, microphone, speaker or camera.

21. The master device of claim 20, wherein the second target content comprises: video or audio.

22. The host device of claim 16, wherein the target application comprises an online education APP.

23. The host device of claim 22, wherein the first target content comprises an online lesson video, courseware, or chat interface.

24. A slave device comprising a processor and a memory, wherein the memory is for storing a computer program comprising program instructions which, when executed by the processor, cause the slave device to perform the steps of:

25. The slave device of claim 24, wherein the program instructions, when executed by the processor, cause the slave device to:

26. The slave device of claim 25, wherein the master device comprises a cell phone or a tablet computer.

27. The slave device of claim 24, wherein the external device comprises: a screen, microphone, speaker or camera.

28. The slave device of claim 27, wherein the second target content comprises: video or audio.

29. The slave device of claim 24, wherein the target application comprises an online education APP.

30. The slave device of claim 29, wherein the first target content comprises an online lesson video, courseware, or chat interface.

31. A target content transmission system, characterized by comprising a master device and a slave device;

the master device is configured to receive, through a distributed communication connection established with the slave device, an external device capability set sent by the slave device, where the external device capability set includes an external device name of the slave device; responsive to a user selecting at least one first target content and at least one external device name in a target application, transmitting the at least one first target content and the at least one external device name selected by the user to the slave device;

The slave device is configured to send the external device capability set to the master device through the distributed communication connection; receiving the at least one first target content and the at least one external device name sent by the main device; outputting the at least one first target content through the external device corresponding to the at least one external device name, and sending the second target content input by the external device corresponding to the at least one external device name to the master device.

32. The targeted content delivery system of claim 31 wherein the host device comprises a cell phone or tablet.

33. The targeted content delivery system of claim 31 wherein the slave device comprises a smart screen.

34. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program comprising program instructions, which when executed by a computer, cause the computer to perform the method of any of claims 1-8 or 9-15.