CN115098052A - Screen projection method, device, equipment and storage medium - Google Patents
Screen projection method, device, equipment and storage medium Download PDFInfo
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- CN115098052A CN115098052A CN202210683040.5A CN202210683040A CN115098052A CN 115098052 A CN115098052 A CN 115098052A CN 202210683040 A CN202210683040 A CN 202210683040A CN 115098052 A CN115098052 A CN 115098052A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
Abstract
The disclosure provides a screen projection method, a screen projection device, screen projection equipment and a storage medium, and relates to the technical field of computers, in particular to the technical fields of artificial intelligence, automatic driving, Internet of vehicles, intelligent cabins and the like. The specific implementation scheme is as follows: determining a Bluetooth broadcast message according to the identification information of the first device; broadcasting a Bluetooth broadcast message; confirming, by the third device, the connection request information in response to receiving the connection request information from the second device; establishing network connection with the second device under the condition that the connection request information passes the confirmation; obtaining screen projection data from the second device based on the network connection; and transmitting the screen projection data to the third device.
Description
Technical Field
The present disclosure relates to the field of computer technology, and more particularly to the field of artificial intelligence, autopilot, and internet of vehicles.
Background
With the development of the internet of vehicles, the vehicle equipment in the automobile can be interconnected with the mobile terminal. For example, a user may connect a mobile terminal such as a mobile phone and a car device in an automobile by using technologies such as USB (Universal Serial Bus) or WLAN (Wireless Local Area Network), so that display content in the mobile terminal is projected onto a display screen of the car device, and the display content of the mobile terminal is displayed on the display screen of the car device.
Disclosure of Invention
The present disclosure provides a screen projection method, apparatus, device, storage medium, and program product.
According to an aspect of the present disclosure, there is provided a screen projection method including: determining a Bluetooth broadcast message according to the identification information of the first device; broadcasting the Bluetooth broadcast message; in response to receiving connection request information from the second device, acknowledging, by the third device, the connection request information; establishing network connection with the second device under the condition that the connection request information is confirmed; acquiring screen projection data from the second device based on the network connection; and sending the screen projection data to the third device.
According to another aspect of the present disclosure, there is provided a screen projection method including: receiving bluetooth broadcast messages from a plurality of first devices; determining at least one candidate identification information from the identification information in the plurality of bluetooth broadcast messages; in response to acquiring a selection signal for target identification information in the at least one candidate identification information, determining target first equipment and target connection information corresponding to the target identification information; establishing network connection with the target first equipment according to the target connection information; and sending the screen projection data to the target first device through the network connection.
According to another aspect of the present disclosure, there is provided a screen projection method including: displaying identification information of the first device; in response to receiving a connection confirmation signal, generating confirmation information and sending the confirmation information to the first device; and presenting the screen projection data in response to receiving the screen projection data from the first device.
According to another aspect of the present disclosure, there is provided a screen projection apparatus including: the first determining module is used for determining the Bluetooth broadcast message according to the identification information of the first equipment; the broadcast module is used for broadcasting the Bluetooth broadcast message; a first confirmation module, configured to, in response to receiving connection request information from the second device, confirm, by the third device, the connection request information; the first connection module is used for establishing network connection with the second equipment under the condition that the connection request information passes the confirmation; the acquisition module is used for acquiring the screen projection data from the second equipment based on the network connection; and the first sending module is used for sending the screen projection data to the third equipment.
According to another aspect of the present disclosure, there is provided a screen projection apparatus including: a receiving module, configured to receive bluetooth broadcast messages from a plurality of first devices; a second determining module, configured to determine at least one candidate identification information from the identification information in the plurality of bluetooth broadcast messages; a third determining module, configured to determine, in response to acquiring a selection signal for target identification information in the at least one candidate identification information, target first equipment and target connection information corresponding to the target identification information; the second connection module is used for establishing network connection with the target first equipment according to the target connection information; and the second sending module is used for sending the screen projection data to the target first equipment through the network connection.
According to another aspect of the present disclosure, there is provided a screen projection apparatus including: the first display module is used for displaying the identification information of the first equipment; the second confirmation module is used for responding to the received connection confirmation signal, generating confirmation information and sending the confirmation information to the first equipment; and a second presentation module for presenting the screen projection data in response to receiving the screen projection data from the first device.
Another aspect of the present disclosure provides a screen projection system including a conversion apparatus, a terminal apparatus, and a display apparatus, wherein: the conversion equipment is used for determining the Bluetooth broadcast message according to the identification information of the first equipment; broadcasting the Bluetooth broadcast message; in response to receiving connection request information from the second device, acknowledging, by the third device, the connection request information; establishing network connection with the second device under the condition that the connection request information is confirmed; acquiring screen projection data from the second device based on the network connection; and sending the screen projection data to the third device; the terminal equipment is used for receiving Bluetooth broadcast messages from a plurality of first equipment; determining at least one candidate identification information from the identification information in the plurality of bluetooth broadcast messages; in response to acquiring a selection signal for target identification information in the at least one candidate identification information, determining target first equipment and target connection information corresponding to the target identification information; establishing network connection with the target first equipment according to the target connection information; and sending the screen projection data to the target first device through the network connection; the display device is used for displaying the identification information of the first device; in response to receiving a connection confirmation signal, generating confirmation information and sending the confirmation information to the first device; and in response to receiving screen projection data from the first device, presenting the screen projection data.
Another aspect of the present disclosure provides a conversion apparatus including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the embodiments of the present disclosure.
Another aspect of the present disclosure provides a terminal device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the embodiments of the present disclosure.
Another aspect of the present disclosure provides a display apparatus including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the embodiments of the present disclosure.
According to another aspect of the disclosed embodiments, there is provided a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method shown in the disclosed embodiments.
According to another aspect of the embodiments of the present disclosure, there is provided a computer program product comprising computer programs/instructions, characterized in that the computer programs/instructions, when executed by a processor, implement the steps of the method shown in the embodiments of the present disclosure.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present disclosure, nor do they limit the scope of the present disclosure. Other features of the present disclosure will become readily apparent from the following description.
Drawings
The drawings are included to provide a better understanding of the present solution and are not to be construed as limiting the present disclosure. Wherein:
fig. 1 schematically illustrates an exemplary system architecture to which the method and apparatus of controlling a terminal may be applied, according to an embodiment of the present disclosure;
FIG. 2 schematically illustrates a flow chart of a screen projection method according to an embodiment of the present disclosure;
fig. 3 schematically illustrates a schematic view of a screen projection method according to another embodiment of the present disclosure;
FIG. 4 schematically illustrates a screen projection diagram according to another embodiment of the present disclosure;
FIG. 5 schematically illustrates a block diagram of a screen projection device according to an embodiment of the disclosure;
FIG. 6 schematically illustrates a block diagram of a screen projection device according to another embodiment of the present disclosure;
FIG. 7 schematically illustrates a block diagram of a screen projection device according to another embodiment of the present disclosure; and
FIG. 8 schematically shows a block diagram of an example electronic device that may be used to implement embodiments of the present disclosure.
Detailed Description
Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of embodiments of the present disclosure are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
An exemplary system architecture to which the method and apparatus for controlling a terminal may be applied provided by the present disclosure will be described below with reference to fig. 1.
Fig. 1 schematically illustrates an exemplary system architecture 100 to which the methods and apparatus of controlling terminals may be applied, according to an embodiment of the disclosure. It should be noted that fig. 1 is only an example of a system architecture to which the embodiments of the present disclosure may be applied to help those skilled in the art understand the technical content of the present disclosure, and does not mean that the embodiments of the present disclosure may not be applied to other devices, systems, environments or scenarios.
As shown in fig. 1, the system architecture 100 according to this embodiment may include a display device 110, a terminal device 120, and a conversion device 130. The display device 110 may be various electronic devices having a display screen and supporting communication with other terminals, such as a car machine device, a smart television, a smart phone, a tablet computer, a laptop portable computer, a desktop computer, and the like. The display screen of the display device 110 may support a touch operation, or the display device 110 may have a human interface device for receiving an operation instruction of a user.
The terminal device 120 may be a variety of electronic devices having a display screen and supporting communication with other terminals, including but not limited to smart phones, tablet computers, laptop and desktop computers, and the like. The display device 110 and the terminal device 120 may have various communication client applications installed thereon, such as a car networking application, a web browser application, a search-type application, an instant messaging tool, and the like.
The terminal device 120 may include a bluetooth module that may be configured to receive bluetooth broadcast messages. The terminal device 120 may further include a WiFi (wireless network communication technology) module for WiFi communication.
According to an embodiment of the present disclosure, a network connection, hereinafter referred to as a first connection, may be established between the conversion apparatus 130 and the display apparatus 110. The first connection may include a wired connection such as a USB (Universal Serial Bus) connection, an HDMI (High Definition Multimedia Interface) connection, or a wireless connection such as a WiFi direct connection (P2P), a Near Field Communication (NFC) connection, or a Bluetooth (Bluetooth) connection. For example, in the present embodiment, a USB connection may be established between the conversion device 130 and the display device 110.
According to an embodiment of the present disclosure, a connection, hereinafter referred to as a second connection, may be established between the terminal device 120 and the conversion device 110. The second connection may include wired connections such as a USB (Universal Serial Bus) connection, an HDMI (High Definition Multimedia Interface) connection, or wireless connections such as a WiFi direct (P2P), a Near Field Communication (NFC) connection, and a Bluetooth (Bluetooth) connection. Exemplarily, in this embodiment, a WiFi direct connection may be established between the terminal device 120 and the conversion device 110.
According to an embodiment of the present disclosure, the conversion device 130 may be configured to receive the screen projection data from the terminal device 120 and transmit the screen projection data to the display device 110 for presentation by the display device 110. In addition, the user can perform a confirmation operation through the display device 110. For example, the user may touch a specific area in the display screen of the display device 110 to perform the confirmation operation. The display device 110 may send an operation instruction corresponding to the operation to the conversion device 130, and then the conversion device 130 sends the operation instruction to the terminal device 120.
When there is software or hardware incompatibility between the display device 110 and the terminal device 120, the display device 110 cannot directly establish a network connection with the terminal device 120, and further cannot perform screen projection. Based on this, the conversion device 130 may be utilized as an intermediary between the display device 110 and the terminal device 120, so that the terminal device 120 may perform screen projection through the display device 110.
In the related art, the terminal device determines the conversion device that needs to establish the network connection according to the name of the conversion device. The network connection may be a wired connection or a wireless connection. When a plurality of conversion devices exist around a terminal device and the names of the plurality of conversion devices are the same, it is difficult to identify a conversion device that needs to establish a network connection.
Based on this, according to an embodiment of the present disclosure, the conversion apparatus 130 may broadcast its own identification information through a bluetooth broadcast message. The terminal device 120 located in the conversion device 130 may acquire the identification information through a bluetooth broadcast message. Additionally, the translation device 130 may present the identification information via the display device 110. The user may select, according to the displayed identification information, target identification information that matches the displayed identification information from the plurality of identification information acquired by the terminal device 120. Terminal device 120 may perform network connection with converting device 130 according to the connection information corresponding to the target identification information selected by the user. Thereby, it can be avoided that connecting to the wrong conversion device results in projecting the screen projection data to the wrong display device.
In the technical scheme of the disclosure, the collection, storage, use, processing, transmission, provision, disclosure, application and other processing of the personal information of the related user are all in accordance with the regulations of related laws and regulations, necessary confidentiality measures are taken, and the customs of the public order is not violated.
In the technical scheme of the disclosure, before the personal information of the user is acquired or collected, the authorization or the consent of the user is acquired.
The screen projection method provided by the present disclosure will be described below with reference to fig. 2.
Fig. 2 schematically shows a flowchart of a screen projection method according to an embodiment of the present disclosure.
As shown in fig. 2, the screen projection method 200 includes determining a bluetooth broadcast message by a conversion apparatus according to identification information of the conversion apparatus itself and then broadcasting the bluetooth broadcast message in operation S201.
According to embodiments of the present disclosure, the identification information may be used to uniquely identify the translation device. The identification information may include, for example, a media access control address (MAC address) of the translation device, etc. Alternatively, the identification information may be obtained by performing a hash calculation based on the MAC address.
According to an embodiment of the present disclosure, the identification information may be added as one field to the bluetooth broadcast message, for example.
According to the embodiment of the disclosure, when the conversion device broadcasts the bluetooth broadcast message, the terminal devices located around the conversion device may receive the bluetooth broadcast message, so that the conversion device may be identified according to the identification information in the bluetooth broadcast message.
In operation S202, the display device presents identification information of the conversion device.
According to an embodiment of the present disclosure, the conversion apparatus and the display apparatus may be established with a connection in advance. The connection may include, for example, a wired connection such as a USB connection or an HDMI connection, or may also include a wireless connection such as a WiFi direct connection, a near field communication connection, or a bluetooth connection. The conversion device may send the identification information to the display device through the connection so that the display device presents the identification information.
According to the embodiment of the disclosure, the identification information of the conversion equipment is displayed through the display equipment, so that a user can know the identification information of the conversion equipment needing to be connected.
In operation S203, the terminal device determines at least one candidate identification information according to the identification information in the bluetooth broadcast message in response to receiving the bluetooth broadcast message from the conversion device.
According to the embodiment of the disclosure, the terminal device can receive one or more bluetooth broadcast messages according to the different number of the peripheral converting devices of the terminal device. Each bluetooth broadcast message is from one switching device. The terminal device can analyze the bluetooth broadcast message to obtain corresponding identification information.
According to the embodiment of the disclosure, in the case that the terminal device receives only one bluetooth broadcast message, the identification information in the bluetooth broadcast message may be determined as the candidate identification information. Under the condition that the terminal equipment only receives a plurality of Bluetooth broadcast messages, the identification information in the plurality of Bluetooth broadcast messages can be screened to obtain candidate identification information. For example, in the present embodiment, for the identification information in the plurality of bluetooth broadcast messages, the candidate identification information in the identification information may be determined based on the signal strength corresponding to each identification information.
In operation S204, the terminal device determines, in response to acquiring a selection signal for target identification information in the at least one candidate identification information, target connection information corresponding to the target identification information.
According to an embodiment of the present disclosure, the conversion apparatus may broadcast the connection information to the surroundings. The connection information may include information required to establish a network connection with the translation device, and may include, for example, a device address, etc.
According to the embodiment of the disclosure, the user can select the same target identification information as the presented identification information in the terminal device according to the presented identification information to generate the selection signal for the target identification information.
In operation S205, the terminal device transmits connection request information to a target conversion device corresponding to the target connection information according to the target connection information.
According to embodiments of the present disclosure, the connection request information may be used to request establishment of a network connection with the target translation device. The network connection may include, for example, a wired connection such as a USB connection or an HDMI connection, or may also include a wireless connection such as a WiFi direct connection, a near field communication connection, or a bluetooth connection. The connection request information may include information such as a device identification and a device address of the terminal device, for example.
In operation S206, the conversion apparatus confirms the connection request information through the third apparatus after receiving the connection request information.
According to an embodiment of the present disclosure, the conversion apparatus may instruct the display apparatus to present the connection confirmation information so that the user may confirm according to the connection confirmation information presented by the display apparatus.
In operation S207, the display apparatus generates acknowledgement information in response to receiving the connection acknowledgement signal, and transmits the acknowledgement information to the conversion apparatus.
According to the embodiment of the disclosure, the user generates a connection confirmation signal at the time of confirmation, and the display device generates the connection confirmation signal to transmit to the conversion device in response to receiving the connection confirmation signal.
In operation S208, the conversion apparatus establishes a network connection with the terminal apparatus in response to receiving the confirmation information from the display apparatus.
According to an embodiment of the present disclosure. The conversion device receives the confirmation information, which indicates that the connection request information is confirmed, and then the network connection can be established with the terminal device.
In operation S209, the terminal device transmits the screen projection data to the target conversion device through the network connection.
According to an embodiment of the present disclosure, the screen projection data may include data that needs to be presented in the display device, and may include, for example, text data, image data, audio data, video data, and the like.
In operation S210, the conversion apparatus transmits screen projection data to the display apparatus in response to acquiring the screen projection data from the terminal apparatus through the network connection.
In operation S211, the display apparatus presents screen projection data.
According to the embodiment of the disclosure, the display device can display the screen projection data, so that the screen of the terminal device is projected into the display device.
According to the embodiment of the present disclosure, on the one hand, the identification information is broadcasted through the bluetooth broadcast message, and on the other hand, the identification information is displayed through the display device. Therefore, the user can select the conversion equipment needing to be connected from the terminal equipment according to the identification information displayed in the display equipment and establish connection, so that the screen projection data can be prevented from being projected to wrong display equipment.
According to the embodiment of the disclosure, under the condition that a plurality of terminal devices are arranged around the conversion device, the connection is confirmed through the display device, malicious screen projection of bad contents by other people can be avoided, and user experience is improved.
According to another embodiment of the present disclosure, the conversion device may generate a Bluetooth broadcast message including the identification information based on, for example, Bluetooth Low Energy (BLE) technology, and broadcast the Bluetooth broadcast message. By broadcasting the bluetooth broadcast message using low power bluetooth technology, the energy consumption of the conversion device can be reduced.
According to another embodiment of the present disclosure, the conversion device may generate the connection confirmation information in a case where the connection request information is received from the terminal device. And then sending the connection confirmation information to the display device so that the display device displays the connection confirmation information. The user can confirm the connection confirmation information presented by the display device.
For example, in this embodiment, the connection confirmation information may include connection prompt information and a confirmation button, for example. The connection prompt information may be used to prompt the user that the terminal device intends to connect with the conversion device corresponding to the display device. The confirmation button may be used to generate a confirmation signal when triggered. The confirmation button can be set according to actual needs. The confirmation button may be a physical button or a virtual button. The user may confirm by clicking on a confirm button in the display device.
According to an embodiment of the present disclosure, the translation device may, for example, obtain its own mac address and then determine the mac address as the identification information.
According to another embodiment of the present disclosure, the translation device may, for example, obtain the mac address and then perform a hash operation on the mac address to obtain the identification information. The media access control address can be kept secret by performing hash calculation on the media access control address part, so that the safety of the information of the conversion equipment is improved.
According to another embodiment of the present disclosure, the conversion device may further convert the mac address into a character string of a predetermined number of digits as the identification information, for example, by hash calculation. Wherein the predetermined number of bits is smaller than the number of bits of the MAC address, and the specific value of the predetermined number of bits can be set according to the actual requirement.
The bits of MAC address are long and not easily distinguishable. In the embodiment, the media access control address is converted into the character string with the preset digit as the identification information, and the digit of the identification information is shortened, so that a user can distinguish the character string more easily, and the user experience is improved.
According to another embodiment of the present disclosure, the terminal device may, for example, obtain a signal strength corresponding to at least one bluetooth broadcast message. Determining a Bluetooth broadcast message with a signal strength greater than a strength threshold value in the plurality of Bluetooth broadcast messages as a candidate Bluetooth broadcast message. The identification information in the candidate bluetooth broadcast message is then determined as the candidate identification information. Wherein, the intensity threshold value can be set according to actual needs. The candidate identification information is screened through the signal intensity, so that the conversion equipment far away from the terminal equipment can be filtered, and the accuracy of the subsequent selection of the connection conversion equipment is improved.
Illustratively, the terminal device may obtain, as the Signal Strength, an RSSI (Received Signal Strength Indicator) value in the bluetooth broadcast message by parsing the bluetooth broadcast message.
According to another embodiment of the present disclosure, the terminal device may further rank the plurality of candidate identification information according to the signal strength corresponding to the candidate identification information, so as to obtain a ranking result. And then, displaying a plurality of identification information according to the sorting result for the user to select.
A method for performing screen projection after connection between the conversion device and the terminal device is established will be described below with reference to fig. 3.
Fig. 3 schematically illustrates a schematic view of a screen projection method according to another embodiment of the present disclosure.
As shown in fig. 3, the terminal device 310 may encapsulate the screen projection data 31 in a first message 32 according to a first communication protocol, and transmit the screen projection data 31 to the conversion device 320 through the first message 32. The first communication protocol is a communication protocol used for communication between the terminal device 310 and the conversion device 320, and may include, for example, a carefe protocol.
Correspondingly, the translation device 320 may receive the first message 32 from the terminal device 310 over the wireless connection. The first message 32 is parsed according to a first communication protocol corresponding to the terminal device 310, resulting in screen projection data 31.
According to an embodiment of the present disclosure, the conversion device 320 may generate the second message 33 according to the screen projection data 31 and the second communication protocol corresponding to the display device 310. The second message 33 is then sent to the display device 330. The second communication protocol is a communication protocol used for communication between the conversion device 320 and the display device 330. Taking the display device 330 as the in-vehicle device as an example, the second communication protocol may include a communication protocol specific to the in-vehicle device, for example.
According to the embodiment of the present disclosure, a communication protocol used in communication between the terminal device and the conversion device and a communication protocol used in communication between the conversion device and the display device may be different.
The screen projection method shown above is further explained with reference to fig. 4 in conjunction with specific embodiments. It will be appreciated by those skilled in the art that the following example embodiments are only for the understanding of the present disclosure, and the present disclosure is not limited thereto.
Exemplarily, in this embodiment, the display device may include, for example, a car machine device.
Illustratively, in the present embodiment, it may be included that the terminal device 400 periphery may include a plurality of vehicles, such as vehicle 410, vehicle 420, and vehicle 430. Each vehicle comprises a vehicle machine device and a conversion device connected with the vehicle machine device. For example, the vehicle 410 includes a conversion apparatus 411 and a vehicle apparatus 412. The vehicle 420 includes a conversion device 421 and a vehicle device 422. The vehicle 430 includes a conversion device 431 and a car device 432.
For example, in the present embodiment, the user may be located in the vehicle 410, and the user intends to connect the conversion device 411 in the vehicle 410 through the terminal device 400. The conversion device 411 and the terminal device 400 may establish a connection. Exemplarily, in the present embodiment, the connection between the conversion device 411 and the terminal device 400 may include, for example, a USB connection, an HDMI connection, or a wired connection. Fig. 4 schematically illustrates a screen projection diagram according to another embodiment of the present disclosure.
In fig. 4, it is shown that the conversion devices 411, 421 and 431 respectively use their MAC addresses as identification information and generate corresponding bluetooth broadcast messages, and then broadcast the MAC addresses by the bluetooth broadcast messages. For example, the conversion device 411 broadcasts the identification information a through a bluetooth broadcast message, the conversion device 421 broadcasts the identification information B through a bluetooth broadcast message, and the conversion device 431 broadcasts the identification information C through a bluetooth broadcast message.
In addition, each of the in-vehicle devices 412, 422, and 432 respectively displays the identification information of the corresponding conversion device. For example, in-vehicle device 412 shows identification information a, in-vehicle device 422 shows identification information B, and in-vehicle device 432 shows identification information C.
The terminal device 400, in response to receiving the bluetooth broadcast messages from the switching devices 411, 421, 431, parses each bluetooth broadcast message for the identification information A, B, C and the corresponding RSSI value.
Next, the terminal device 400 may determine a bluetooth broadcast message having an RSSI value greater than the strength threshold as a candidate bluetooth broadcast message, and determine identification information of the candidate bluetooth broadcast message as candidate identification information. Illustratively, in this embodiment, the intensity threshold may be-65. In this embodiment, if the RSSI values of the bluetooth broadcast messages from the switching devices 411, 421, and 431 are all greater than the strength threshold, it is determined that the bluetooth broadcast messages of the switching devices 411, 421, and 431 are all candidate bluetooth broadcast messages. Based on this, the candidate identification information may be obtained as the identification information A, B, C.
The user selects, through the terminal device 400, the identification information a of the candidate identification information as the target identification information based on the identification information a presented by the in-vehicle device 412 of the vehicle 410, and accordingly generates a selection signal for the identification information a.
The terminal device 400 may search peripheral WiFi direct devices to obtain connection information of the conversion devices 411, 421, and 431. The connection information may include, for example, a WiFi direct address of the corresponding translation device.
The terminal apparatus 400 determines, as target connection information, connection information of the conversion apparatus 411 corresponding to the identification information a from among the connection information of the conversion apparatuses 411, 421, 431 in response to acquisition of the selection signal for the identification information a. The terminal device 400 may then send connection request information for WiFi direct connection to the switching device 411 according to the target connection information.
After receiving the connection request message, the switching device 411 instructs the in-vehicle device 412 to display the connection confirmation message. The user may confirm the connection confirmation information displayed by the in-vehicle device 412 to generate a connection confirmation signal.
For example, the connection confirmation information may include connection prompt information and a confirmation button. The translation device 411 may instruct the in-vehicle device 412 to present a prompt and a confirmation button that the user may click to generate a connection confirmation signal.
The in-vehicle device 412 generates confirmation information in response to acquiring the connection confirmation signal, and transmits the confirmation information to the conversion device 411. The conversion device 411 establishes a WiFi direct connection with the terminal device 400.
The terminal device 400 sends the screen projection data to the conversion device 411 through WiFi direct connection. The conversion device 411 sends the screen projection data to the in-vehicle device 412 in response to acquiring the screen projection data from the terminal device through the WiFi direct connection. The screen projection data is then presented by the in-vehicle device 412.
According to the embodiment of the disclosure, on one hand, the identification information is broadcasted through the Bluetooth broadcast message, and on the other hand, the identification information is displayed through the vehicle-mounted equipment. Therefore, the user can select the conversion equipment needing to be connected in the terminal equipment according to the identification information displayed in the vehicle equipment and establish connection, so that screen projection to wrong vehicle equipment can be avoided.
The screen projection device provided by the present disclosure will be described below with reference to fig. 5.
Fig. 5 schematically illustrates a block diagram of a screen projection apparatus according to an embodiment of the present disclosure.
As shown in fig. 5, the screen projection apparatus 500 includes a first determination module 510, a broadcast module 520, a first confirmation module 530, a first connection module 540, an acquisition module 550, and a first transmission module 540.
A first determining module 510, configured to determine a bluetooth broadcast message according to the identification information of the first device.
A broadcasting module 520 for broadcasting the bluetooth broadcast message.
A first confirmation module 530, configured to confirm the connection request information through the third device in response to receiving the connection request information from the second device.
A first connection module 540, configured to establish a network connection with the second device if the connection request information passes the confirmation.
An obtaining module 550, configured to obtain the screen projection data from the second device based on the network connection.
A first sending module 560, configured to send the screen projection data to the third device.
Fig. 6 schematically illustrates a block diagram of a screen projection apparatus according to another embodiment of the present disclosure.
As shown in fig. 6, the screen projection apparatus 600 includes a receiving module 610, a second determining module 620, a third determining module 630, a second connecting module 640, and a second transmitting module 650.
A receiving module 610, configured to receive bluetooth broadcast messages from a plurality of first devices.
A second determining module 620, configured to determine at least one candidate identification information from the identification information in the plurality of bluetooth broadcast messages.
A third determining module 630, configured to determine, in response to acquiring the selection signal for the target identification information in the at least one candidate identification information, the target first device and the target connection information corresponding to the target identification information.
And the second connection module 640 is configured to establish a network connection with the target first device according to the target connection information.
A second sending module 650, configured to send the screen projection data to the target first device through a network connection.
Fig. 7 schematically illustrates a block diagram of a screen projection apparatus according to another embodiment of the present disclosure.
As shown in fig. 7, the screen projection apparatus 700 includes a first presentation module 710, a second confirmation module 720, and a second presentation module 730.
The first displaying module 710 is configured to display the identification information of the first device.
A second acknowledgement module 720, configured to generate an acknowledgement message in response to receiving the connection acknowledgement signal, and send the acknowledgement message to the first device.
A second presentation module 730 for presenting the screen projection data in response to receiving the screen projection data from the first device.
The present disclosure also provides an electronic device, a readable storage medium, and a computer program product according to embodiments of the present disclosure.
Fig. 8 schematically illustrates a block diagram of an example electronic device 800 that may be used to implement embodiments of the present disclosure. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not intended to limit implementations of the disclosure described and/or claimed herein.
As shown in fig. 8, the apparatus 800 includes a computing unit 801 which can perform various appropriate actions and processes in accordance with a computer program stored in a Read Only Memory (ROM)802 or a computer program loaded from a storage unit 808 into a Random Access Memory (RAM) 803. In the RAM 803, various programs and data required for the operation of the device 800 can also be stored. The calculation unit 801, the ROM 802, and the RAM 803 are connected to each other by a bus 804. An input/output (I/O) interface 805 is also connected to bus 804.
A number of components in the device 800 are connected to the I/O interface 805, including: an input unit 806, such as a keyboard, a mouse, or the like; an output unit 807 such as various types of displays, speakers, and the like; a storage unit 808, such as a magnetic disk, optical disk, or the like; and a communication unit 809 such as a network card, modem, wireless communication transceiver, etc. The communication unit 809 allows the device 800 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), system on a chip (SOCs), Complex Programmable Logic Devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
Program code for implementing the methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowchart and/or block diagram to be performed. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
The computer system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.
The Server may be a cloud Server, which is also called a cloud computing Server or a cloud host, and is a host product in a cloud computing service system, so as to solve the defects of high management difficulty and weak service extensibility in a traditional physical host and a VPS service ("Virtual Private Server", or "VPS" for short). The server may also be a server of a distributed system, or a server that incorporates a blockchain.
It should be understood that various forms of the flows shown above, reordering, adding or deleting steps, may be used. For example, the steps described in the present disclosure may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved.
The above detailed description should not be construed as limiting the scope of the disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.
Claims (21)
1. A screen projection method, comprising:
determining a Bluetooth broadcast message according to the identification information of the first device;
broadcasting the Bluetooth broadcast message;
in response to receiving connection request information from the second device, acknowledging, by the third device, the connection request information;
establishing network connection with the second device under the condition that the connection request information is confirmed;
acquiring screen projection data from the second device based on the network connection; and
sending the screen projection data to the third device.
2. The method of claim 1, wherein the acknowledging, by the third device, the connection request information comprises:
generating connection confirmation information in a case where a connection request from the second device is received;
sending the connection confirmation information to the third device; and
determining that the connection request information is acknowledged in response to receiving acknowledgement information generated by the third device for the connection acknowledgement information.
3. The method of claim 1, further comprising:
obtaining a media access control address of the first device; and
determining the MAC address as the identification information.
4. The method of claim 1, further comprising:
obtaining a media access control address of the first device; and
and carrying out Hash calculation on the media access control address to obtain a character string with a predetermined digit as the identification information, wherein the predetermined digit is less than the digit of the media access control address.
5. The method of claim 1, further comprising:
receiving a first message from the second device over the network connection; and
and analyzing the first message according to a first communication protocol corresponding to the second equipment to obtain the screen projection data.
6. The method of any of claims 1-5, wherein the transmitting the screen projection data to the third device comprises:
generating a second message according to the screen projection data and a second communication protocol corresponding to the third device; and
sending the second message to the third device.
7. A screen projection method, comprising:
receiving bluetooth broadcast messages from a plurality of first devices;
determining at least one candidate identification information from the identification information in the plurality of bluetooth broadcast messages;
in response to acquiring a selection signal for target identification information in the at least one candidate identification information, determining target first equipment and target connection information corresponding to the target identification information;
establishing network connection with the target first equipment according to the target connection information; and
and sending the screen projection data to the target first device through the network connection.
8. The method of claim 7, wherein said determining at least one candidate identification information from the identification information in the plurality of bluetooth broadcast messages comprises:
acquiring signal intensities corresponding to the plurality of Bluetooth broadcast messages;
determining the Bluetooth broadcast message with the signal strength larger than the strength threshold value in the plurality of Bluetooth broadcast messages as a candidate Bluetooth broadcast message; and
and determining the identification information in the candidate Bluetooth broadcast message as the candidate identification information.
9. The method of claim 8, further comprising:
sorting the candidate identification information according to the signal intensity corresponding to the candidate identification information to obtain a sorting result; and
and displaying the candidate identification information according to the sorting result.
10. The method of claim 7, wherein the sending screen projection data to the target first device over the network connection comprises:
generating a first message according to a first communication protocol and the screen projection data; and
sending the first message to the target first device.
11. A screen projection method, comprising:
displaying identification information of the first device;
in response to receiving a connection confirmation signal, generating confirmation information and sending the confirmation information to the first device; and
presenting the screen projection data in response to receiving the screen projection data from the first device.
12. The method of claim 11, further comprising:
in response to receiving connection confirmation information from the first device, presenting the connection confirmation information; and
receiving a connection confirmation signal for the connection confirmation information.
13. A screen projection device comprising:
the first determining module is used for determining the Bluetooth broadcast message according to the identification information of the first equipment;
the broadcast module is used for broadcasting the Bluetooth broadcast message;
a first confirmation module, configured to, in response to receiving connection request information from the second device, confirm, by the third device, the connection request information;
the first connection module is used for establishing network connection with the second equipment under the condition that the connection request information passes the confirmation;
the acquisition module is used for acquiring the screen projection data from the second equipment based on the network connection; and
and the first sending module is used for sending the screen projection data to the third equipment.
14. A screen projection device comprising:
a receiving module, configured to receive bluetooth broadcast messages from a plurality of first devices;
a second determining module, configured to determine at least one candidate identification information from the identification information in the plurality of bluetooth broadcast messages;
a third determining module, configured to determine, in response to acquiring a selection signal for target identification information in the at least one candidate identification information, target first equipment and target connection information corresponding to the target identification information;
the second connection module is used for establishing network connection with the target first equipment according to the target connection information; and
and the second sending module is used for sending the screen projection data to the target first equipment through the network connection.
15. A screen projection device comprising:
the first display module is used for displaying the identification information of the first equipment;
the second confirmation module is used for responding to the received connection confirmation signal, generating confirmation information and sending the confirmation information to the first equipment; and
a second presentation module for presenting the screen projection data in response to receiving the screen projection data from the first device.
16. A screen projection system comprising a conversion device, a terminal device and a display device, wherein:
the conversion equipment is used for determining the Bluetooth broadcast message according to the identification information of the first equipment; broadcasting the Bluetooth broadcast message; in response to receiving connection request information from the second device, acknowledging, by the third device, the connection request information; establishing network connection with the second device under the condition that the connection request information is confirmed; acquiring screen projection data from the second device based on the network connection; and sending the screen projection data to the third device;
the terminal equipment is used for receiving Bluetooth broadcast messages from a plurality of first equipment; determining at least one candidate identification information from the identification information in the plurality of bluetooth broadcast messages; in response to acquiring a selection signal for target identification information in the at least one candidate identification information, determining target first equipment and target connection information corresponding to the target identification information; establishing network connection with the target first equipment according to the target connection information; and sending the screen projection data to the target first device through the network connection; and
the display device is used for displaying the identification information of the first device; in response to receiving a connection confirmation signal, generating confirmation information and sending the confirmation information to the first device; and presenting the screen projection data in response to receiving the screen projection data from the first device.
17. A translation device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-6.
18. A terminal device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 7-10.
19. A display device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 11-12.
20. A non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to perform the method of any one of claims 1-12.
21. A computer program product comprising computer program/instructions, characterized in that the computer program/instructions, when executed by a processor, implement the steps of the method of any of claims 1-12.
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