WO2024087815A1

WO2024087815A1 - Screen sharing device pairing method and pairing apparatus, electronic device, and medium

Info

Publication number: WO2024087815A1
Application number: PCT/CN2023/113312
Authority: WO
Inventors: 黄升; 张建阳
Original assignee: 广州视臻信息科技有限公司
Priority date: 2022-10-25
Filing date: 2023-08-16
Publication date: 2024-05-02
Also published as: CN117939088A

Abstract

The present application discloses a screen sharing device pairing method and pairing apparatus, and an electronic device. The pairing method can be applied to a screen sharing device, and a WiFi module is arranged on the screen sharing device. The method comprises: the screen sharing device receives an indication signal sent by a terminal device, searches for another AP in a nearby range by using the WiFi module, and sends related information of at least one found AP to the terminal device; the screen sharing device receives access information of a target device determined by the terminal device according to the related information of the at least one AP, and establishes a communication link between the screen sharing device and the target device according to the access information of the target device and an encryption mode of the AP associated with the target device. The present method can achieve pairing without inserting a screen sharing device into an intelligent tablet, a communication link between the screen sharing device and a target device is established according to access information of the target device and an encryption mode of an associated AP, thereby completing pairing between the screen sharing device and the target device, and achieving wireless screen mirroring.

Description

Screen transmission device pairing method, pairing device, electronic device and medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application filed with the China Patent Office on October 25, 2022, with application number 202211310087.3 and invention name “A screen transmission device pairing method, pairing device, electronic device and medium”, the entire contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the field of electronic technology, and in particular to a screen transmitter pairing method, pairing device, electronic device and medium.

Background technique

Smart tablets integrate the functions of multiple devices such as projectors, electronic whiteboards, screens, speakers, televisions, video conferencing terminals, etc. They are suitable for group communication scenarios and are widely used in education and teaching, corporate meetings, commercial exhibitions, etc. Smart tablets can wirelessly transmit screens to computers, mobile phones, tablets and other terminal devices through screen transmission devices, that is, the content on the terminal device display is projected onto the smart tablet for display, so that the user group can watch it together.

At present, in the process of pairing a smart tablet with a terminal device, it is necessary to rely on a screen transmitter on the smart tablet. The user inserts the screen transmitter into the smart tablet and pairs the parameters of the smart tablet with the terminal device through the access point (AP) mode, thereby establishing a communication link between the terminal device and the smart tablet to achieve screen projection. However, this method requires the screen transmitter. If the screen transmitter is not installed on the smart tablet, the pairing between the smart tablet and the terminal device cannot be achieved, and the screen projection cannot be achieved.

Summary of the invention

The present application discloses a screen sharing device pairing method and pairing device, which are used to solve the problem that the screen sharing device can only be paired after being inserted into a smart tablet. In order to solve this technical problem, the following technical solutions are disclosed:

In a first aspect, a screen transmitter pairing method is disclosed, which can be applied to a screen transmitter, on which a WiFi module is provided, and the method comprises: the screen transmitter receives an indication signal sent by a terminal device, the indication signal is used to instruct a user to trigger a device pairing process and start a search function; uses the WiFi module to search for other APs within a nearby range, and sends relevant information of at least one AP searched to the terminal device; the receiving terminal device determines according to the relevant information of at least one AP The access information of the target device is obtained, and a communication link between the screen transmitter and the target device is established according to the access information of the target device and the encryption method of the AP associated with the target device.

Optionally, in a possible implementation manner of the first aspect, the access information of the target device includes: an IP address and a port number of the target device;

A communication link between the screen transmitter and the target device is established based on the access information of the target device and the encryption method of the AP associated with the target device, including: establishing a communication link between the screen transmitter and the target device based on the IP address and port number of the target device and the encryption method of the AP.

Optionally, in another possible implementation of the first aspect, a communication link between the screen transmitter and the target device is established based on the access information of the target device and the encryption method of the AP associated with the target device, including: establishing a communication connection between the screen transmitter and the AP based on the access information of the target device and the encryption method of the AP associated with the target device, the AP and the target device being pre-connected by wire or wirelessly; establishing a communication link between the screen transmitter and the target device based on the wired or wireless connection between the AP and the target device.

Optionally, in another possible implementation of the first aspect, the screen transmitter uses a WiFi module to search for other APs in the vicinity, including: the screen transmitter uses WiFi probe principle technology to search for other APs in the vicinity.

Optionally, in another possible implementation manner of the first aspect, the method further includes: the screen transmitter saves the access information of the target device and the encryption method of the AP associated with the target device.

On the second aspect, an embodiment of the present application also discloses another screen transmitter pairing method, which is applied to a terminal device, and the method includes: the terminal device sends an indication signal to the screen transmitter, the indication signal is used to instruct the user to trigger the device pairing process, and instruct the screen transmitter to start the search function; receiving relevant information of at least one AP searched by the screen transmitter; determining the access information of the target device in the relevant information of at least one AP; and sending the access information of the target device to the screen transmitter.

Optionally, in a possible implementation manner of the second aspect, the terminal device determines the access information of the target device in the relevant information of at least one AP, including: the terminal device determines the target AP in the relevant information of at least one AP in response to a selection operation of the user; obtains a screen transmission code corresponding to the target AP, and parses the screen transmission code to obtain the access information of the target device, where the access information of the target device includes an IP address and a port number of the target device;

The terminal device sends the access information of the target device to the screen transmitter, including: the terminal device sends the IP address and port number of the target device to the screen transmitter.

Optionally, in another possible implementation of the second aspect, the terminal device obtains a screen transmission code corresponding to the target AP, It includes: the terminal device pops up a prompt window on the display screen, the prompt window is used to prompt the user to enter the screen transmission code of the target device; and receives the screen transmission code of the target device entered by the user in the prompt window.

Optionally, in another possible implementation manner of the second aspect, the method further includes: the terminal device obtains an encryption method of an AP associated with the target device; and the terminal device sends the encryption method of the AP to the screen transmitter.

Optionally, in another possible implementation manner of the second aspect, the method further includes: when the terminal device receives a message that a wireless communication link with a target device is successfully established and forwarded by the screen transmitter, projecting the screen to the target device.

In a third aspect, the present application also discloses a pairing device, on which a WiFi module is provided, and the device includes:

A receiving unit, used to receive an indication signal sent by a terminal device, the indication signal is used to instruct a user to trigger a device pairing process and start a search function;

A search unit, used to use the WiFi module to search for other APs in the vicinity;

A sending unit, configured to send relevant information of at least one AP found to a terminal device;

The receiving unit is further used to receive access information of a target device determined by the terminal device according to relevant information of at least one AP;

The processing unit is used to establish a communication link with the target device according to the access information of the target device and the encryption mode of the AP associated with the target device.

In a fourth aspect, the present application also discloses another pairing device, the device comprising:

A sending unit, used to send an indication signal to the screen sharing device, where the indication signal is used to instruct the user to trigger the device pairing process and instruct the screen sharing device to start the search function;

A receiving unit, used to receive relevant information of at least one AP searched by the screen transmitter;

A determining unit, configured to determine access information of a target device from relevant information of at least one AP;

The sending unit is also used to send the access information of the target device to the screen transmitter.

In the fifth aspect, an embodiment of the present application also discloses an electronic device, comprising a processor and a memory communicatively connected to the processor; wherein the memory stores computer-readable program instructions executable by the processor, and the instructions are executed by the processor to enable the processor to execute a screen transmitter pairing method such as the first aspect or any implementation of the first aspect, or the second aspect or any implementation of the second aspect.

Optionally, the electronic device is a screen transmitter and/or a terminal device.

In addition, the present application also discloses a computer-readable storage medium on which computer program instructions are stored. When the computer program instructions are executed by the processor, the screen transmission device pairing method as described in the first aspect or any implementation of the first aspect, or the second aspect or any implementation of the second aspect is implemented.

The screen transmitter pairing method and device provided in this embodiment searches for other APs in the vicinity through the WiFi module of the screen transmitter, and sends the collected relevant information of other APs to the terminal device, so that the terminal device uses this information to determine the access information and encryption method of the target device, and then uses the access information, encryption method and other information of the target device to establish a communication link between the screen transmitter and the target device. This method solves the problem of relying on the screen transmitter to be inserted into a smart tablet for pairing, and realizes the establishment of a wireless connection between the screen transmitter and the target device to be projected when the screen transmitter is separated from the smart tablet, thereby completing the pairing of the screen transmitter with the AP associated with the target device.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1A is a schematic diagram of a screen sharing device pairing scenario provided in an embodiment of the present application;

FIG1B is a schematic diagram of another screen sharing device pairing scenario provided in an embodiment of the present application;

FIG2A is a signaling flow chart of a screen sharing device pairing method provided in an embodiment of the present application;

FIG2B is a signaling flow chart of a screen sharing device pairing method provided in an embodiment of the present application;

3 is a flow chart of a terminal device sending access information to a screen transmitter according to an embodiment of the present application;

FIG4 is a schematic diagram of the structure of a pairing device provided in an embodiment of the present application;

FIG5 is a schematic diagram of the structure of another pairing device provided in an embodiment of the present application;

FIG6 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

Detailed ways

The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

The device pairing method in the embodiment of the present application is applicable to a wireless pairing system, as shown in FIG1A , which includes a terminal device, a screen transmitter, a router, and a screen projection device. The number of devices (devices) and screen projection devices can be one or more, and this embodiment does not limit this.

Among them, a screen transmitter is connected or arranged on the terminal device, and the specific connection method includes but is not limited to USB interface connection. In addition, a WiFi module is arranged on the screen transmitter, and the WiFi module has two working modes, namely: AP (Access Point) mode and STA (Station) mode. Specifically, the AP mode: provides wireless access services, allows other wireless devices to access, and provides data access. General wireless routers/bridges work in this mode. The STA mode: is similar to a wireless terminal. The STA mode can be used to connect to an AP. General wireless network cards work in this mode. In this embodiment, the WiFi module of the screen transmitter works in STA mode, which is used to search for nearby routes.

As shown in FIG1A , the router can be used as an access point AP, such as AP1, which works in AP mode and can be connected to at least one projection device, each projection device working in STA mode. The router and the projection device are connected by wire or wirelessly.

In addition, in another application scenario, as shown in Figure 1B, the system includes: a terminal device, a screen transmitter, AP2 and a screen projection device, wherein AP2 can be set as a hotspot on the screen projection device, and communication with the WiFi module of the screen transmitter can be achieved through AP2 working in AP mode.

Among them, the screen projection device can be a terminal device, and the terminal device includes but is not limited to a personal computer, a laptop computer, a smart phone, a smart tablet, a tablet computer, a large board, a portable wearable device or other terminal devices.

It should be understood that the pairing system may include more or fewer other devices, which is not limited in this embodiment.

The technical solution provided in this embodiment is described in detail below.

Referring to FIG. 2A , a screen sharing device pairing method provided in an embodiment of the present application includes:

First, in the preparation stage, the terminal device pre-installs an application APP, which can be used to start the wireless pairing process of the screen transmitter. The application APP can be a wireless screen transmission software, and the screen transmitter is provided with a WiFi module.

Step 101: The terminal device sends an indication signal to the screen transmitter, and correspondingly, the screen transmitter receives the indication signal sent from the terminal device, wherein the indication signal is used to instruct the user to trigger the device pairing process and start the search function.

Optionally, a specific implementation is that after the terminal device starts the application APP, it receives a click operation from the user on the display screen of the terminal device; in response to the user's click operation, the application APP starts the WiFi module on the screen transmitter and turns on the search function.

Optionally, another specific implementation is that the user directly starts the search function on the screen sharing device, for example, the user directly presses a button/switch on the screen sharing device to start the WiFi module on the screen sharing device and turn on the search function.

Step 102: The screen transmitter uses the WiFi module to search for other APs in the vicinity.

When the screen transmitter receives the indication signal sent by the terminal device, or when the user presses the screen transmitter button, the "STA mode" of the WiFi module is activated to start searching for other nearby APs in the wireless local area network (WLAN). One search method is that the WiFi module searches for other nearby APs through the WLAN network in the STA mode, for example, searching for a nearby router AP1, or searching for a nearby AP2 with a hotspot function turned on.

Furthermore, in step 102, one implementation method is that the screen transmitter can search for other APs in the vicinity through the WiFi probe principle technology. The WiFi probe principle: WiFi is based on the IEEE802.11a/b/g/n protocol. In the standard protocol, two working modes of AP (access point or wireless access point) and STA (station or client) are defined; the protocol stipulates multiple wireless data frame types such as BEACON, ACK (Acknowledge character, confirmation character), DATA, probe, etc. When searching for an AP mode end device in STA mode, the data frame and the response frame are interacted, and the WiFi module periodically sends BEACON frames (broadcast frames) to search for other APs within the coverage range.

Furthermore, the WiFi probe can actually be a probe frame. Generally, when accessing a wireless network WLAN, you must first select the corresponding wireless network, that is, select the Service Set Identifier (SSID) according to the name of the wireless network. One way is active scanning, in which the probe frame is used in active scanning. The specific principle is that the WiFi module will actively send a probe request frame to the nearby AP (including routing). After AP1 and AP2 receive the probe request frame, they will feedback a probe response frame. The content of the probe response frame is almost the same as that of the Beacon frame, so some information in the frame is used to initiate the access process.

Step 103: the screen transmitter sends the relevant information of the at least one AP searched to the terminal device. Correspondingly, the terminal device receives the relevant information of the at least one AP searched from the screen transmitter.

Among them, the relevant information of each AP includes: SSID and the encryption method of the corresponding AP. Each AP corresponds to an SSID. For example, the WiFi module of the screen transmitter searches for the wireless network of AP1 corresponding to the first SSID, and the wireless network of AP2 corresponds to the second SSID.

In addition, the relevant information of each AP also includes information required to connect to the AP, for example, encryption methods of AP1 and AP2, such as network name ID1 and key Key1 corresponding to AP1, network name ID2 and key Key2 of AP2, etc. Specifically, the encryption methods (network name ID and key Key) used by AP1 and AP2 can be set by the user, and this embodiment does not limit this.

Step 104: The terminal device determines access information of the target device from the relevant information of the at least one AP.

In one implementation, the terminal device determines the target AP in the relevant information of the at least one AP in response to the user's selection operation. Specifically, the terminal device displays the relevant information of the at least one AP on a display screen, and the terminal device receives an operation of the user selecting an SSID in the relevant information of the at least one AP, and uses the SSID selected by the user as the target SSID, which is the wireless network where the device that the user wants to pair is located, thereby determining the target AP.

For example, the terminal device displays the SSIDs of AP1 and AP2 on the display screen, such as displaying the first SSID and the second SSID, and then the user selects one of the SSIDs; receiving the user's selection operation on the display screen of the terminal device, the selection operation is that the user clicks on the terminal device to connect to an SSID, and the AP corresponding to the SSID clicked by the user is the target AP. For example, when the user selects the first SSID, the corresponding AP1 is determined as the target AP.

Step 105: The terminal device sends the access information of the target device, and correspondingly, the screen transmitter receives the access information of the target device sent by the terminal device.

Among them, the access information of the target device includes information such as the IP address and port number of the target device, and the IP address and port number information can be obtained through screen transmission code analysis.

In addition, in addition to the access information of the target device, the terminal device can also send the encryption method of the target AP to the screen transmitter. The specific timing of sending can be sending together with the above step 104, or sending after step 104, which is not limited in this embodiment.

Step 106: The screen transmitter establishes a communication link between the screen transmitter and the target device according to the access information of the target device and the encryption method of the AP associated with the target device.

The AP associated with the target device is the target AP, and the target device is determined by the above step 104.

In the scenario shown in FIG. 1A above, as shown in FIG. 2B , an implementation of establishing a communication link includes:

Step 1061: The screen transmitter establishes a communication connection between the screen transmitter and the AP (such as AP1) according to the access information of the target device and the encryption method of the AP associated with the target device. The target device is a smart tablet.

Step 1062: Establish a communication link between the screen transmitter and the smart tablet based on the wired or wireless connection between AP1 and the smart tablet.

The wired or wireless connection between AP1 and the smart tablet can be established in advance, and after the screen transmitter establishes a communication connection with AP1, it can directly establish a communication link with the smart tablet. In addition, the screen transmitter also obtains the encryption method of AP1, the key Key1, before step 1061.

In addition, in the scenario shown in FIG. 1B , since the target device is directly provided with AP2, the screen transmitter can be Establish a communication link with the target device.

Among them, the process of the screen transmitter establishing a communication link can use the TCP protocol to establish a communication link. For example, the screen transmitter sends a handshake signal, the screen projection device on the receiving end feeds back a response signal, and the screen transmitter sends a confirmation signal based on the response signal. Generally, a wireless communication connection between the screen transmitter and the target device is established through three signal interactions.

Specifically, the screen transmitter establishes a communication link between the screen transmitter and the target device according to the target device IP address and the port number, as well as the encryption method of the AP. For example, the screen transmitter uses the IP address of the screen projection device to find the screen projection device, and uses the port number to establish a communication link with the screen projection device, and determines that the link connection is successful.

Step 107, the screen transmitter sends the result of successful linking to the terminal device, and the successful linking result can be sent to the terminal device in a message-carrying manner.

Step 108, when the terminal device receives the message forwarded by the screen transmitter that the communication link between the screen transmitter and the target device is successfully established, the terminal device projects the screen to the target device.

When the communication link is successfully established, data can be transmitted synchronously between the terminal device and the target device, and the data of the terminal device can be transmitted and displayed on the target device.

In addition, optionally, after the above step 106, the screen transmitter also writes the target AP encryption method (key Key), target IP address and port number input by the user into the storage unit, thereby providing a basis for subsequent establishment of a wireless link.

The screen transmitter pairing method provided in this embodiment searches for other APs in the vicinity through the WiFi module of the screen transmitter, and sends the collected relevant information of other APs to the terminal device, so that the terminal device uses this information to determine the access information and encryption method of the target device, and then uses the access information, encryption method and other information of the target device to establish a communication link between the screen transmitter and the target device. This method solves the problem of relying on the screen transmitter to be inserted into a smart tablet for pairing, and realizes the establishment of a wireless connection between the screen transmitter and the target device to be projected when the screen transmitter is separated from the smart tablet, thereby completing the pairing of the screen transmitter and the AP associated with the target device.

In addition, this method can also connect the screen transmitter to external routers, smart tablets and other devices, and through other connection methods (such as WiFi), the screen transmitter and the smart tablet are in the same network segment, thereby realizing the pairing and screen projection functions of the screen transmitter; it is also applicable to smart tablets that lack AP hardware.

Optionally, in another implementation of this embodiment, as shown in FIG. 3 , in step 104, the terminal device determines the access information of the target device from the relevant information of at least one AP, specifically including:

Step 1041: The terminal device determines the target in the relevant information of the at least one AP in response to the user's selection operation. The specific process is as mentioned in step 104, which will not be described here.

Step 1042: The terminal device obtains the screen transmission code corresponding to the target AP, and parses the screen transmission code to obtain the access information of the target device. The access information of the target device includes the IP address and port number of the target device.

One possible implementation is that the terminal device pops up a prompt window on the display screen, which is used to instruct the user to enter the screen transmission code corresponding to the device to be paired, which is known to the user in advance; or obtained by checking the information on the device to be paired. For example, the device to be paired is a smart tablet, and there is a screen transmission code on the display screen of the smart tablet, and the smart tablet uniquely corresponds to the screen transmission code, so the user can input the unique screen transmission code on the smart tablet into the display screen of the terminal device.

After the terminal device obtains the screen transmission code of the smart tablet, it parses the screen transmission code to obtain information such as the IP address and port number of the smart tablet, which can be used as the access information of the target device. Specifically, the parsing process can refer to the existing parsing process of the screen transmission code. This embodiment does not limit the detailed process of parsing to obtain the IP address and port number of the target device.

In addition, the above step 105 specifically further includes:

Step 1051: The terminal device sends the IP address and port number of the target device, as well as the encryption method of the target AP, to the screen transmitter.

Among them, the encryption method of the target AP can be obtained at the same time as the screen transmission code, or can be obtained one after the other. This embodiment does not limit the order in which the two are obtained.

Optionally, the sending method can send the IP address and port number of the target device and the encryption method of the target AP at one time; or send them one after another. Correspondingly, the screen transmitter receives the IP address and port number of the target device and the encryption method of the target AP sent by the terminal device. For example, the information sent by the terminal device to the screen transmitter includes: the IP address and port number of the smart tablet, and the encryption method of the AP.

At the receiving end, the screen transmitter can receive the IP address and port number of the target device and the encryption method of the target AP at one time. Alternatively, only the IP address and port number of the target device are received without receiving the encryption method of the target AP. In this case, the encryption method of the target AP can be obtained by other means, such as determining the encryption method of the target AP based on the binding relationship between the IP address and port number of the target device and the encryption method of the target AP.

This embodiment can determine the target AP based on the user's selection operation, and parse the access information of the target device according to the screen transmission code corresponding to the target AP, providing a basis for pairing the screen transmitter and establishing a communication link with the target device.

The present application also discloses a pairing device. As shown in FIG3 , the pairing device is provided with a WiFi module. The device includes: a receiving unit 401, a searching unit 402, a sending unit 403 and a processing unit 404. It may include other unit modules such as a storage unit, and this embodiment does not limit the structure of the screen transmitter pairing device. The device may be a screen transmitter in the aforementioned embodiment, used to implement the method steps of the screen transmitter in the aforementioned method embodiment.

Specifically, the receiving unit 401 is used to receive an indication signal sent by a terminal device, where the indication signal is used to instruct a user to trigger a device pairing process and start a search function.

The search unit 402 is used to use the WiFi module to search for other APs in the vicinity to obtain relevant information of at least one AP, wherein the relevant information of each AP includes an SSID and an AP encryption mode.

The sending unit 403 is used to send relevant information of at least one AP found during the search to the terminal device.

The receiving unit 401 is further configured to receive access information of a target device determined by the terminal device according to relevant information of the at least one AP.

The processing unit 404 is configured to establish a communication link with the target device according to the access information of the target device and the encryption mode of the AP associated with the target device.

Optionally, in a specific implementation of this embodiment, the access information of the target device includes: the IP address and port number of the target device; the processing unit 404 is also used to establish a communication link with the target device based on the IP address and the port number of the target device, and the encryption method of the AP.

Optionally, in another specific implementation of this embodiment, the processing unit 404 is also used to establish a communication connection between the screen transmitter and the AP based on the access information of the target device and the encryption method of the AP associated with the target device, and the AP and the target device are pre-connected by wire or wirelessly; and to establish a communication link between the screen transmitter and the target device based on the wired or wireless connection between the AP and the target device.

Optionally, in another specific implementation of this embodiment, the searching unit 402 is further configured to search for other APs in the vicinity by using the WiFi probe principle technology.

Optionally, in another specific implementation of this embodiment, the device also includes a storage unit, which is not shown in Figure 4, and the storage unit is used to store access information corresponding to the target device, such as the IP address and port number of the target device, and the encryption method of the AP associated with the target device.

In addition, another screen sharing device pairing apparatus is provided in another embodiment, as shown in FIG5 , and the apparatus is connected to the apparatus shown in FIG4 . The apparatus may be a terminal device for implementing the method steps of the terminal device in the aforementioned embodiment.

Specifically, the device includes: a sending unit 501, a receiving unit 502, and a determining unit 503. It should be understood that the device may also include other unit modules such as a storage unit, and this embodiment does not limit this.

Among them, the sending unit 501 is used to send an indication signal to the screen transmitter, and the indication signal is used to instruct the user to trigger the device pairing process and instruct the screen transmitter to start the search function.

The receiving unit 502 is used to receive relevant information of at least one AP searched by the screen transmitter.

The determining unit 503 is configured to determine the access information of the target device from the relevant information of the at least one AP.

The sending unit 501 is further configured to send the access information of the target device to the screen transmitter.

Furthermore, the determining unit 503 is specifically configured to determine a target AP from the relevant information of the at least one AP in response to a selection operation of the user.

As shown in FIG5 , the determining unit 503 specifically includes an acquiring unit 5031 and a parsing unit 5032, wherein:

The acquisition unit 5031 is used to acquire the screen transmission code corresponding to the target AP.

The parsing unit 5032 is used to parse the screen transmission code to obtain the access information of the target device, and the access information of the target device includes the IP address and port number of the target device.

The sending unit 501 is also used to send the IP address and port number of the target device to the screen transmitter to establish a communication link between the screen transmitter and the target device.

Optionally, in a specific implementation of this embodiment, the above-mentioned device also includes a display unit, which is not shown in Figure 5, and the display unit is used to display relevant information of at least one AP after the receiving unit 502 receives relevant information of at least one AP searched by the screen transmitter.

The receiving unit 502 is further configured to receive an operation of a user selecting an SSID from the relevant information of the at least one AP.

Optionally, in another specific implementation of this embodiment, the display unit is also used to pop up a prompt window on the display screen according to the target SSID determined by the determination unit 503, and the prompt window is used to prompt the user to enter the screen transmission code of the target device and the target AP password.

The receiving unit 502 is further used to receive the screen transmission code and the target AP password input by the user in the prompt window.

Optionally, in another specific implementation of this embodiment, the acquisition unit 5031 is further used to acquire the encryption method of the AP associated with the target device, and the sending unit 501 is further used to send the encryption method of the AP to the screen transmitter.

Optionally, in another specific implementation of this embodiment, the sending unit 501 is also used to project the screen to the target device when the receiving unit 502 receives a message forwarded by the screen transmitter that the communication link between the screen transmitter and the target device is successfully established.

The device provided in this embodiment searches for other APs in the vicinity through its internal WiFi module, and sends the collected relevant information of other APs to the terminal device, so that the terminal device uses this information to determine the access information and encryption method of the target device, and then uses the access information, encryption method, etc. of the target device to establish a communication link between the screen transmitter and the target device, thereby solving the problem of relying on the screen transmitter to be inserted into the smart tablet for pairing, and realizing the establishment of a wireless connection between the screen transmitter and the target device to be projected when the screen transmitter is separated from the smart tablet, thereby completing the pairing of the screen transmitter and the AP associated with the target device.

At the specific hardware level, the embodiment of the present application further provides an electronic device, as shown in FIG6 , the electronic device may include a processor 110 and a memory 120, wherein the processor 110 and the memory 120 may be connected via a bus or other means, and FIG6 takes the connection via a bus as an example. In addition, the electronic device also includes at least one interface 130, and the at least one interface 130 may be a communication interface or other interface, such as a USB interface, which is not limited in this embodiment.

Among them, the electronic device can be the terminal device, screen transmitter, router or target device in the aforementioned embodiments.

Specifically, the processor 110 may be a central processing unit (CPU). The processor 110 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above chips.

The memory 120, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer executable programs and modules, such as program instructions/modules corresponding to the screen transmitter pairing method in the embodiment of the present application. The processor 110 executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions and modules stored in the memory 120, that is, the screen transmitter pairing method in the above method embodiment is implemented.

The memory 120 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and applications required for at least one function; the data storage area may store data created by the processor 110, etc. In addition, the memory 120 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 120 may optionally include a memory remotely arranged relative to the processor 110, and these remote memories may be connected to the processor 110 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, and combinations thereof.

In addition, at least one interface 130 is used for communication between the electronic device and external devices, such as terminal devices, network devices, etc. Communication, such as routers, screen projection devices, etc. Optionally, at least one interface 130 can also be used to connect peripheral input and output devices, such as keyboards, display screens, etc. In addition, at least one interface 130 can also include a USB interface, etc.

Furthermore, the above-mentioned electronic device can be a terminal device, which can be a source device that requests screen projection at the front end, or it can be a screen projection device at the opposite end. The terminal device can be a smart phone, a tablet computer, a smart screen, a screen projection device, a desktop computer, a smart wearable device, etc., but is not limited to this.

In addition, the present embodiment further provides a pairing system, which includes a terminal device, a screen transmitter, or a router, and a screen projection device to be paired, etc. Among them, the screen transmitter is connected to the front-end terminal device, and a WiFi module is provided in the screen transmitter. Specifically, the connection relationship between the various devices in the pairing system can be seen as shown in Figures 1A and 1B, and the structure of the screen transmitter or terminal device can be seen as shown in Figure 5. The system is used to implement the method steps for pairing the aforementioned screen transmitter. More specifically, the interaction process of the screen transmitter pairing method can be seen in the method flow shown in Figure 2A or Figure 2B, and this embodiment will not be repeated here.

The screen transmitter pairing system provided in this embodiment can establish a wireless communication link through the IP address, port number and AP key of the target device without directly relying on the smart tablet pairing hardware; the dependence includes the smart tablet being hung high and unable to directly touch or insert the screen transmitter; and the smart tablet lacking a pairing interface, etc.

In addition, this solution can connect the wireless screen transmitter to an external AP, and the smart tablet can be connected through other methods (such as network cable or WiFi) so that the screen transmitter and the smart tablet are in the same network segment, thereby realizing the pairing and projection functions of the screen transmitter.

In addition, the pairing method in the embodiment of the present application has better program compatibility; because this solution does not directly pair the terminal device with the smart tablet, it has better compatibility than the traditional pairing solution of directly inserting the screen transmitter into the smart tablet.

Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory (Flash Memory), a hard disk (HDD) or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above-mentioned types of memory.

Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art may Various modifications and variations may be made with the intention of following the principles and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

A screen sharing device pairing method, characterized in that it is applied to a screen sharing device, wherein the screen sharing device is provided with a WiFi module, and the method comprises:

The screen transmitter receives an indication signal sent by the terminal device, wherein the indication signal is used to instruct the user to trigger a device pairing process and start a search function;

The screen transmitter uses the WiFi module to search for other APs in the vicinity, and sends relevant information of at least one AP searched to the terminal device;

The screen transmitter receives access information of a target device determined by the terminal device based on relevant information of at least one AP, and establishes a communication link between the screen transmitter and the target device based on the access information of the target device and the encryption method of the AP associated with the target device.
The method according to claim 1, characterized in that the access information of the target device includes: an IP address and a port number of the target device;

The step of establishing a communication link between the screen transmitter and the target device according to the access information of the target device and the encryption method of the AP associated with the target device includes:

A communication link between the screen transmitter and the target device is established according to the IP address and the port number of the target device and the encryption method of the AP.
The method according to claim 1 is characterized in that establishing a communication link between the screen transmitter and the target device according to the access information of the target device and the encryption method of the AP associated with the target device comprises:

According to the access information of the target device and the encryption method of the AP associated with the target device, a communication connection is established between the screen transmitter and the AP, and the AP and the target device are pre-connected by wire or wirelessly;

According to the wired or wireless connection between the AP and the target device, a communication link between the screen transmitter and the target device is established.
The method according to claim 1 is characterized in that the screen transmitter uses the WiFi module to search for other APs in the vicinity, including:

The screen transmitter uses WiFi probe principle technology to search for other APs in the vicinity.
A screen sharing device pairing method, characterized in that it is applied to a terminal device, and the method comprises:

The terminal device sends an indication signal to the screen transmitter, wherein the indication signal is used to instruct the user to trigger the device pairing process. and instructing the screen transmitter to start a search function;

The terminal device receives relevant information of at least one AP searched by the screen transmitter;

The terminal device determines access information of the target device from the relevant information of the at least one AP;

The terminal device sends the access information of the target device to the screen transmitter.
The method according to claim 5, characterized in that the terminal device determines the access information of the target device from the relevant information of the at least one AP, comprising:

The terminal device determines the target AP in the relevant information of the at least one AP in response to a selection operation of the user;

The terminal device obtains the screen transmission code corresponding to the target AP, and parses the screen transmission code to obtain the access information of the target device, where the access information of the target device includes the IP address and port number of the target device;

The terminal device sends the access information of the target device to the screen transmitter, including:

The terminal device sends the IP address and the port number of the target device to the screen transmitter.
The method according to claim 6, characterized in that the terminal device obtains the screen transmission code corresponding to the target AP, comprising:

The terminal device pops up a prompt window on the display screen, and the prompt window is used to prompt the user to enter the screen transmission code of the target device;

The terminal device receives the screen transmission code of the target device input by the user in the prompt window.
The method according to any one of claims 5 to 7, characterized in that the method further comprises:

The terminal device obtains an encryption mode of the AP associated with the target device;

The terminal device sends the encryption method of the AP to the screen transmitter.
The method according to any one of claims 5 to 7, characterized in that the method further comprises:

When the terminal device receives the message forwarded by the screen transmitter that the communication link between the screen transmitter and the target device is successfully established, the terminal device projects the screen to the target device.
A pairing device, characterized in that a WiFi module is provided on the device, and the device comprises:

A receiving unit, used to receive an indication signal sent by a terminal device, wherein the indication signal is used to instruct a user to trigger a device pairing process and start a search function;

A searching unit, used to use the WiFi module to search for other APs in the vicinity;

A sending unit, configured to send relevant information of at least one AP found to the terminal device;

The receiving unit is further configured to receive access information of a target device determined by the terminal device according to relevant information of the at least one AP;

The processing unit is used to establish a communication link with the target device according to the access information of the target device and the encryption mode of the AP associated with the target device.
A pairing device, characterized in that the device comprises:

A sending unit, used to send an indication signal to the screen sharing device, wherein the indication signal is used to instruct the user to trigger the device pairing process and instruct the screen sharing device to start a search function;

A receiving unit, configured to receive relevant information of at least one AP searched by the screen transmitter;

a determining unit, configured to determine access information of a target device from relevant information of the at least one AP;

The sending unit is further used to send the access information of the target device to the screen transmitter.
An electronic device, comprising a processor and a memory, wherein the memory is coupled to the processor;

The memory stores computer-readable program instructions.

When the processor reads and executes the instructions, the screen transmission device pairing method as described in any one of claims 1 to 4, or 5 to 9 is implemented.
A computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, it implements the screen transmission device pairing method as described in any one of claims 1 to 4, or 5 to 9.