CN113507708A - Screen projection method and screen projection system - Google Patents
Screen projection method and screen projection system Download PDFInfo
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- CN113507708A CN113507708A CN202110707166.7A CN202110707166A CN113507708A CN 113507708 A CN113507708 A CN 113507708A CN 202110707166 A CN202110707166 A CN 202110707166A CN 113507708 A CN113507708 A CN 113507708A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W12/06—Authentication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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Abstract
The invention discloses a screen projection method and a screen projection system, wherein the method comprises the steps of controlling a pre-connected display terminal to display a distribution network address when a distribution network request is detected so as to enable a user terminal to be connected with the distribution network address; when detecting the network access information sent by the user terminal aiming at the distribution network address, sending a network access request to a routing terminal corresponding to the network access address; when detecting the network access permission sent by the routing terminal aiming at the network access request, carrying out network configuration according to the network access permission to obtain a communication network corresponding to the user terminal; and based on the communication network, when screen projection data sent by the user terminal are detected, controlling the display terminal to display screen projection media corresponding to the screen projection data. The invention can realize screen projection in a network environment which has higher safety factor and can not realize data transmission with the user terminal directly.
Description
Technical Field
The invention relates to the technical field of screen projection, in particular to a screen projection method and a screen projection system.
Background
The existing screen projection technology is to connect a screen projection terminal and a user terminal into the same local area network, then quickly transmit audio data of the user terminal to the screen projection terminal based on the local area network, and perform screen projection display. This approach relies primarily on the free communication between multiple terminals within the same lan. But such free communication is not possible in all lan environments.
Taking the hotel environment as an example, the hotel network is a relatively complex network, and compared with the traditional public network, the security mechanism of the hotel network is stronger. Besides the conventional security mechanisms such as transmission encryption and the like, the identity authentication mechanism of the hotel network is stronger. For example, for a customer in a room, the room number and the customer's name typically need to be entered to access the hotel's network. Meanwhile, the hotel guests have stronger precaution awareness on privacy, so in order to realize network security, a stronger terminal isolation mechanism is established in the hotel network. Local area network communication cannot be directly performed among a plurality of terminals accessing the same hotel network. Therefore, the screen projection which can be realized by only accessing the same local area network is difficult to normally operate in the hotel network environment.
Therefore, in a local area network with high requirements for security and confidentiality, based on a screen projection scheme of the local area network, the user terminal and the screen projection terminal cannot establish effective data connection, and further effective screen projection of the user terminal cannot be realized.
Disclosure of Invention
The technical problem to be solved by the invention is that in a local area network with higher requirements on safety and confidentiality, based on a screen projection scheme of the local area network, a user terminal and a screen projection terminal cannot establish effective data connection and cannot complete screen projection, and a screen projection method is provided aiming at the defects of the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method of screen projection, the method comprising: when the distribution network request is detected, controlling a pre-connected display terminal to display a distribution network address so as to enable a user terminal to be connected with the distribution network address;
when detecting the network access information sent by the user terminal aiming at the distribution network address, sending a network access request to a routing terminal corresponding to the network access address, wherein the network access information comprises the network access address;
when detecting the network access permission sent by the routing terminal aiming at the network access request, carrying out network configuration according to the network access permission to obtain a communication network corresponding to the user terminal;
and based on the communication network, when screen projection data sent by the user terminal are detected, controlling the display terminal to display screen projection media corresponding to the screen projection data.
According to the screen projection method, the form of the distribution network address comprises a website and a two-dimensional code.
The screen projection method comprises the steps that the network access request comprises an authentication address and a local area network communication request; when detecting the network access permission sent by the routing terminal aiming at the network access request, performing network configuration according to the network access permission to obtain a communication network corresponding to the user terminal comprises:
when detecting the verification information sent by the routing terminal aiming at the authentication address, sending a local area network communication request to the routing terminal according to the verification information;
and when detecting the agreement information sent by the routing terminal aiming at the local area communication request, taking the agreement information as the network access permission.
The screen projection method, wherein when the verification information sent by the routing terminal for the network access request is detected, after sending a local area network communication request to the routing terminal, further includes:
when detecting that the reject information sent by the routing terminal aiming at the local area communication request or the verification information sent aiming at the authentication address is not verified, starting a hotspot mode and controlling the display terminal to display hotspot information corresponding to the hotspot mode;
and when detecting a connection request sent by the user terminal aiming at the hotspot information, establishing hotspot connection with the user terminal based on the connection request to obtain a communication network corresponding to the user terminal.
A computer readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps in a screen projection method as described in any above.
A screen projection terminal, comprising: a processor, a memory, and a communication bus; the memory has stored thereon a computer readable program executable by the processor;
the communication bus realizes connection communication between the processor and the memory;
the processor, when executing the computer readable program, implements the steps in the screen projection method as described in any of the above.
A screen projection system, comprising: the system comprises a user terminal, a display terminal, a routing terminal and the screen projection terminal;
the user terminal is in communication connection with the routing terminal and is in wireless connection with the screen projection terminal;
the display terminal is in communication connection with the screen projection terminal;
the user terminal is used for connecting a website corresponding to the distribution network address and acquiring configuration information corresponding to the screen projection terminal based on the website; and the number of the first and second groups,
sending network access information to the screen projection terminal, wherein the network access information comprises the configuration information and a network access address corresponding to the routing terminal;
the routing terminal is used for judging whether the screen throwing terminal is a terminal capable of accessing the network or not according to the network access request when detecting the network access request sent by the screen throwing terminal; and the number of the first and second groups,
if so, sending a network access permission corresponding to the network access request to the screen projection terminal;
and the display terminal is used for displaying the distribution network address.
The screen projection system is characterized in that the display terminal and the screen projection terminal are in communication connection in an HDMI (high-definition multimedia interface) mode;
the wireless connection mode between the user terminal and the screen projection terminal comprises Bluetooth connection and infrared connection.
The screen projection system, wherein the user terminal is further configured to:
when the distribution network address is received, the user terminal sends a connection request to the distribution network address;
and when the distribution network information sent aiming at the connection request is detected, the distribution network information and the network access address are sent to the screen throwing terminal based on the wireless connection.
The screen projection system is characterized in that the screen projection terminal is further used for:
when detecting the verification information sent by the routing terminal aiming at the network access request, sending a local area network communication request to the routing terminal; and the number of the first and second groups,
when detecting that the reject information sent by the routing terminal aiming at the local area communication request or the verification information sent aiming at the authentication address is not verified, starting a hotspot mode and controlling the display terminal to display hotspot information corresponding to the hotspot mode;
the user terminal is further used for establishing hot spot connection between the user terminal and the screen projection terminal according to the hot spot information when the hot spot information sent by the screen projection terminal is detected, and obtaining a communication network corresponding to the user terminal.
Has the advantages that: compared with the prior art, the screen projection method and the screen projection system are provided by the invention, the method firstly sends the network access permission to the routing terminal on the premise of bringing the local area network of the routing terminal into the routing terminal, so that a communication network capable of being directly contacted with the user terminal is obtained, and the screen projection is carried out on the basis of the communication network. In addition, the network access permission also comprises an authentication address and a local area network communication request, and when identity authentication is required or local area network communication is refused, a communication network is established with the screen projection terminal in a mode of taking the self as a hot spot. By the scheme, the connection between the screen projection terminal and the user terminal can be effectively realized under the environment of a local area network with higher safety coefficient.
Drawings
Fig. 1 is a schematic view of an application scenario of the screen projection method provided by the present invention.
Fig. 2 is a flowchart of a screen projection method provided by the present invention.
Fig. 3 is a schematic structural diagram of a screen projection device provided by the present invention.
Fig. 4 is a schematic structural diagram of a screen projection terminal provided by the present invention.
Detailed Description
The present invention provides a screen projection method and a screen projection system, and in order to make the objects, technical solutions, and effects of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The inventor finds that in a local area network with high requirements on safety and confidentiality, effective data connection cannot be established between a user terminal and a screen projection terminal based on a screen projection scheme of the local area network, and screen projection cannot be completed.
For example, embodiments of the present invention may be applied to the scenario shown in FIG. 1. The scene is a screen projection system which comprises a user terminal, a display terminal, a routing terminal and a screen projection terminal. The terminal at the lower left in the figure is a user terminal, a computer, a display terminal and a projector in the middle, and the terminal in the projection screen is a set-top box.
It can be understood that, in the above application scenario, the user terminal includes an intelligent device such as a smart phone, a computer, and a tablet, the display terminal includes a projector, a television, and the like, and the routing terminal includes a device such as a router that issues a local area network. In this scenario, the screen projection terminal operates as a stand-alone device, such as a screen projector. However, in an actual environment, the screen projection terminal may be improved in process, and integrated with the display terminal in the form of a small module or a plug-in, so as to simplify the product.
It should be noted that the above application scenarios are only presented to facilitate understanding of the present invention, and the embodiments of the present invention are not limited in any way in this respect. Rather, embodiments of the present invention may be applied to any scenario where applicable.
The invention will be further explained by the description of the embodiments with reference to the drawings.
As shown in fig. 2, the present embodiment provides a screen projection method, which is applied to the screen projection system described above. When each terminal in the screen projection system starts to operate, the following method is performed.
The screen projection terminal is in a resting state most of the time until the screen projection terminal is awakened by a user. Therefore, the screen projection terminal needs to be awakened first. The user starts the screen projection terminal and the user terminal, and switches the mode of the screen projection terminal into the distribution network mode through the mode switching key, so that the user starts to execute the screen projection method in the embodiment. In this embodiment, the mode switching key is in a short-press mode, and different modes can be selected for switching among different projection terminals. Meanwhile, the screen projection terminal is in communication connection with a display terminal in a hotel or other environments. In this embodiment, the communication connection between the screen projecting terminal and the display terminal is used to transmit the screen projecting data received by the screen projecting terminal to the display terminal, and the mode may include an existing mainstream hdmi (high Definition Multimedia interface) connection mode.
And S10, when the distribution network request is detected, controlling a pre-connected display terminal to display a distribution network address so that the user terminal is connected with the distribution network address.
Specifically, when the mode of the screen projecting terminal switched by the user is the distribution network mode, the screen projecting terminal generates a distribution network request according to the switched mode, and the distribution network request is used for prompting the screen projecting terminal to start the screen projecting method.
When the distribution network request is detected, the screen projection terminal generates a distribution network address, sends the distribution network address to the display terminal, and controls the display terminal to display the distribution network address. The distribution network address can be integrated with a certain picture interface for displaying so as to improve the aesthetic feeling of display.
The form of the distribution network address comprises common website representation forms such as a website and a two-dimensional code.
In addition, under the distribution network mode, the screen projection terminal can also start a data transmission module such as Bluetooth and infrared rays, and the like, and is used for establishing short-distance communication connection with the user terminal subsequently.
After the display terminal displays the address of the distribution network, the user enables the user terminal to log in a website corresponding to the network address of the distribution network through modes of code scanning, website input and the like. And displaying parameters required for establishing screen projection connection with the screen projection terminal on the website, wherein the parameters comprise parameters to be set by the user terminal and parameters required by the screen projection terminal. In order to simplify the process of configuring the parameters for the user terminal by the user, in this embodiment, all the parameters and the related configuration mechanism are issued in the form of an app (application, software installation package). And after the user terminal logs in the website, the configured parameters are obtained by downloading the app. After the app is installed, the app automatically sets parameters related to screen projection, which are required to be set by the user terminal.
In addition, the user terminal starts transmission modules corresponding to the screen projection terminal, such as Bluetooth, in advance so as to establish communication connection of data transmission with the screen projection terminal. Meanwhile, the user terminal accesses to the local area network issued by the routing terminal.
S20, when detecting the network access information sent by the user terminal aiming at the distribution network address, sending a network access request to a routing terminal corresponding to the network access address, wherein the network access information comprises the network access address.
Specifically, after the app is installed, the user terminal sends the network access information to the screen projection terminal through the connection established with the screen projection terminal, so as to serve as feedback of the distribution network address. The network access information comprises network access addresses, passwords, mobile phone signals of local area networks accessed by the user terminals, configuration information of the screen projection terminals and the like.
When the screen projection terminal detects the network access information sent by the user terminal aiming at the distribution network address, the screen projection terminal sends a network access request to the routing terminal based on the network access address. The network access request is mainly used for requesting the routing terminal to allow the routing terminal to directly establish communication connection with the user terminal.
And S30, when detecting the network access permission sent by the routing terminal aiming at the network access request, carrying out network configuration according to the network access permission to obtain a communication network corresponding to the user terminal.
Specifically, when the routing terminal receives the network access request, whether the screen projection terminal is allowed to communicate with the user terminal is judged according to a rule set by the routing terminal. And if so, sending network access permission to the screen projection terminal.
And after detecting the network access permission, the screen projection terminal performs network configuration according to the network access permission so as to obtain a communication network corresponding to the user terminal.
Further, when the network is a network with higher security, authentication is required. If the identity authentication is needed, the screen projection terminal cannot be added into the local area network. Therefore, before sending the network access request, the screen projection terminal needs to perform the property judgment of the local area network to determine whether the local area network needs identity authentication. After the connection with the routing terminal is established, the network access request is sent to the routing terminal, and the authentication address is also included. The authentication address in this embodiment is "http:// g.cn/generation _ 204".
When the routing terminal receives the network access request, a piece of verification information is returned aiming at the authentication address, and whether the local area network communication request is sent to the routing terminal or not can be determined according to the verification information. If the verification information is '204', the local area network needs identity authentication, and the verification information is needed to be verified, so that the distribution network is finished by adopting a local area network mode; if the verification information is not '204', the verification information is not verified, which indicates that the local area network does not need identity authentication, and therefore a local area network communication request is sent to the local area network.
The lan communication request is used to request the routing terminal to communicate based on the lan, that is, to request the routing terminal to permit subsequent communication with the user terminal. And the routing terminal receives the local area network communication request and judges whether the screen projection terminal is permitted to carry out local area network communication according to the rule of the routing terminal. If yes, the route terminal sends agreement information to the route terminal; and if not, the routing terminal sends rejection information to the routing terminal.
When detecting the agreement information sent by the routing terminal aiming at the local area network communication request, the agreement information is used as the network access permission, and the network of the routing terminal is configured according to the network access permission, thereby obtaining the communication network capable of communicating with the user terminal.
Further, not all local area network communication requests, the routing terminal sends the agreement information, and not all local area networks need authentication. If the route terminal sends the rejection information, the conventional screen projection terminal cannot perform subsequent distribution. However, in this embodiment, even if the routing terminal rejects the lan communication request or needs to be authenticated, the communication with the user terminal can be implemented in the following manner:
and A10, when detecting that the rejection information sent by the routing terminal aiming at the local area communication request or the verification information sent aiming at the authentication address is not verified, starting a hot spot mode, and controlling the display terminal to display the hot spot information corresponding to the hot spot mode.
Specifically, when detecting that the routing terminal rejects the transmission of the local area network communication request or does not validate the verification information transmitted by the authentication address, the screen-projection terminal starts the hotspot mode of the screen-projection terminal. The hotspot mode is to take the screen projection terminal as an AP to transmit a WiFi network outwards. In this embodiment, the hot spot mode may adopt a mixed mode or a single mode. The mixed mode is thrown the screen terminal promptly and both can externally provide the hot spot, and oneself can insert in other wiFi simultaneously. In this embodiment, other WiFi may be selected for the local area network where the routing terminal is located.
When the hotspot mode is started, in order to enable the user terminal to be added into the hotspot mode, the display terminal is controlled to display hotspot information corresponding to the hotspot mode. The hotspot information comprises an address, a password and other information corresponding to the screen projection terminal. Certainly, the password is not necessary, the content of the hotspot information can be automatically adjusted according to the environment, but the user can add the user terminal into the hotspot environment corresponding to the screen projection terminal according to the hotspot information.
A20, when detecting the connection request sent by the user terminal for the hotspot information, establishing hotspot connection with the user terminal based on the connection request.
Specifically, the user fills the relevant content into the user terminal according to the hotspot information, so that a connection request is sent to the screen projection terminal.
And when detecting a connection request sent by the user terminal aiming at the hot spot information, the screen projection terminal establishes hot spot connection with the user terminal based on the connection request to obtain a communication network corresponding to the user terminal.
And S40, controlling the display terminal to display screen projection media corresponding to the screen projection data when the screen projection data sent by the user terminal are detected based on the communication network.
When the screen projection data sent by the user terminal are detected, the screen projection terminal forwards the screen projection data to the display terminal and controls the display terminal to decode the screen projection data, so that the screen projection media corresponding to the screen projection data are displayed.
Based on the screen projection method, the present embodiment provides a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps in the screen projection method according to the above embodiment.
Based on the screen projection method, the present invention further provides a screen projection terminal, as shown in fig. 4, which includes at least one processor (processor) 20; a display screen 21; and a memory (memory)22, and may further include a communication Interface (Communications Interface)23 and a bus 24. The processor 20, the display 21, the memory 22 and the communication interface 23 can communicate with each other through the bus 24. The display screen 21 is configured to display a user guidance interface preset in the initial setting mode. The communication interface 23 may transmit information. The processor 20 may call logic instructions in the memory 22 to perform the methods in the embodiments described above.
Furthermore, the logic instructions in the memory 22 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product.
The memory 22, which is a computer-readable storage medium, may be configured to store a software program, a computer-executable program, such as program instructions or modules corresponding to the methods in the embodiments of the present disclosure. The processor 20 executes the functional application and data processing, i.e. implements the method in the above-described embodiments, by executing the software program, instructions or modules stored in the memory 22.
The memory 22 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the screen projection terminal, and the like. Further, the memory 22 may include a high speed random access memory and may also include a non-volatile memory. For example, a variety of media that can store program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, may also be used as the transient computer readable storage medium.
In addition, the specific processes loaded and executed by the instruction processors in the computer-readable storage medium and the screen projection terminal are described in detail in the method, and are not stated herein.
Based on the screen projecting terminal, the invention also provides a screen projecting system which specifically comprises the user terminal, the display terminal, the route terminal and the screen projecting terminal.
The user terminal is in communication connection with the routing terminal and is in wireless connection with the screen projection terminal;
the display terminal is in communication connection with the screen projection terminal;
the user terminal is used for connecting a website corresponding to the distribution network address and acquiring configuration information corresponding to the screen projection terminal based on the website; and the number of the first and second groups,
sending network access information to the screen projection terminal, wherein the network access information comprises the configuration information and a network access address corresponding to the routing terminal;
the routing terminal is used for judging whether the screen throwing terminal is a terminal capable of accessing the network or not according to the network access request when detecting the network access request sent by the screen throwing terminal; and the number of the first and second groups,
if so, sending a network access permission corresponding to the network access request to the screen projection terminal;
and the display terminal is used for displaying the distribution network address.
The display terminal and the screen projection terminal are in communication connection in an HDMI (high-definition multimedia interface) mode;
the wireless connection mode between the user terminal and the screen projection terminal comprises Bluetooth connection and infrared connection.
Wherein the user terminal is further configured to:
when the distribution network address is received, the user terminal sends a connection request to the distribution network address;
and when the distribution network information sent aiming at the connection request is detected, the distribution network information and the network access address are sent to the screen throwing terminal based on the wireless connection.
Wherein, the screen projection terminal is also used for:
when detecting the verification information sent by the routing terminal aiming at the network access request, sending a local area network communication request to the routing terminal; and the number of the first and second groups,
when detecting that the routing terminal sends rejection information aiming at the local area communication request, starting a hotspot mode, and controlling the display terminal to display hotspot information corresponding to the hotspot mode;
the user terminal is further used for establishing hot spot connection between the user terminal and the screen projection terminal according to the hot spot information when the hot spot information sent by the screen projection terminal is detected, and obtaining a communication network corresponding to the user terminal.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of screen projection, the method comprising:
when the distribution network request is detected, controlling a pre-connected display terminal to display a distribution network address so as to enable a user terminal to be connected with the distribution network address;
when detecting the network access information sent by the user terminal aiming at the distribution network address, sending a network access request to a routing terminal corresponding to the network access address, wherein the network access information comprises the network access address;
when detecting the network access permission sent by the routing terminal aiming at the network access request, carrying out network configuration according to the network access permission to obtain a communication network corresponding to the user terminal;
and based on the communication network, when screen projection data sent by the user terminal are detected, controlling the display terminal to display screen projection media corresponding to the screen projection data.
2. The screen projection method of claim 1, wherein the distribution network address comprises a website address and a two-dimensional code.
3. The screen-throwing method according to claim 1, wherein the network-entry request comprises an authentication address and a local area network communication request; when detecting the network access permission sent by the routing terminal aiming at the network access request, performing network configuration according to the network access permission to obtain a communication network corresponding to the user terminal comprises:
when detecting the verification information sent by the routing terminal aiming at the authentication address, sending a local area network communication request to the routing terminal according to the verification information;
and when detecting the agreement information sent by the routing terminal aiming at the local area communication request, taking the agreement information as the network access permission.
4. The screen projection method according to claim 3, wherein the authentication information includes non-authentication; when the network access information sent by the user terminal aiming at the distribution network address is detected, after a network access request is sent to a routing terminal corresponding to the network access address, the method further comprises the following steps:
when detecting that the reject information sent by the routing terminal aiming at the local area communication request or the verification information sent aiming at the authentication address is not verified, starting a hotspot mode and controlling the display terminal to display hotspot information corresponding to the hotspot mode;
and when detecting a connection request sent by the user terminal aiming at the hotspot information, establishing hotspot connection with the user terminal based on the connection request to obtain a communication network corresponding to the user terminal.
5. A computer readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to perform the steps of the screen projection method as claimed in any one of claims 1 to 4.
6. A screen projection terminal, comprising: a processor, a memory, and a communication bus; the memory has stored thereon a computer readable program executable by the processor;
the communication bus realizes connection communication between the processor and the memory;
the processor, when executing the computer readable program, implements the steps in the screen projection method of any of claims 1-4.
7. A screen projection system is characterized by specifically comprising a user terminal, a display terminal, a routing terminal and the screen projection terminal as claimed in any one of claims 1 to 4;
the user terminal is in communication connection with the routing terminal and is in wireless connection with the screen projection terminal;
the display terminal is in communication connection with the screen projection terminal;
the user terminal is used for connecting a website corresponding to the distribution network address and acquiring configuration information corresponding to the screen projection terminal based on the website; and the number of the first and second groups,
sending network access information to the screen projection terminal, wherein the network access information comprises the configuration information and a network access address corresponding to the routing terminal;
the routing terminal is used for judging whether the screen throwing terminal is a terminal capable of accessing the network or not according to the network access request when detecting the network access request sent by the screen throwing terminal; and the number of the first and second groups,
if so, sending a network access permission corresponding to the network access request to the screen projection terminal;
and the display terminal is used for displaying the distribution network address.
8. The screen projection system of claim 7, wherein the display terminal and the screen projection terminal are communicatively connected by an HDMI connection;
the wireless connection mode between the user terminal and the screen projection terminal comprises Bluetooth connection and infrared connection.
9. The screen projection system of claim 7, wherein the user terminal is further configured to:
when the distribution network address is received, the user terminal sends a connection request to the distribution network address;
and when the distribution network information sent aiming at the connection request is detected, the distribution network information and the network access address are sent to the screen throwing terminal based on the wireless connection.
10. The screen projection system of claim 7, wherein the screen projection terminal is further configured to:
when detecting the verification information sent by the routing terminal aiming at the network access request, sending a local area network communication request to the routing terminal; and the number of the first and second groups,
when detecting that the routing terminal sends rejection information aiming at the local area communication request, starting a hotspot mode, and controlling the display terminal to display hotspot information corresponding to the hotspot mode;
the user terminal is further used for establishing hot spot connection between the user terminal and the screen projection terminal according to the hot spot information when the hot spot information sent by the screen projection terminal is detected, and obtaining a communication network corresponding to the user terminal.
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| CN202110707166.7A CN113507708A (en) | 2021-06-25 | 2021-06-25 | Screen projection method and screen projection system |
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