CN111954162B - Method for realizing wireless screen transmission through autonomous networking among multiple devices, screen transmission end and receiving end - Google Patents
Method for realizing wireless screen transmission through autonomous networking among multiple devices, screen transmission end and receiving end Download PDFInfo
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- CN111954162B CN111954162B CN201910408764.7A CN201910408764A CN111954162B CN 111954162 B CN111954162 B CN 111954162B CN 201910408764 A CN201910408764 A CN 201910408764A CN 111954162 B CN111954162 B CN 111954162B
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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
- 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
- H04W76/00—Connection management
- H04W76/10—Connection setup
Abstract
The invention provides a method for realizing wireless screen transmission by autonomous networking among multiple devices, a screen transmission end and a receiving end, wherein the method comprises the following steps: the screen transmission end carries out Bluetooth broadcast on data comprising an IP address, a port number and a Wi-Fi name; the receiving end finds the Bluetooth broadcast and reads the data; and the receiving end sets the data into the screen transmission assembly. The invention can be simultaneously suitable for autonomous networking and screen transmission under the condition of no network among any equipment with the Bluetooth function, and has the characteristics of simple and convenient operation, high practicability and the like.
Description
Technical Field
The invention relates to the field of wireless screen transmission, in particular to a method for realizing wireless screen transmission through autonomous networking among multiple devices, a screen transmission end and a receiving end.
Background
Today, it is the first year of the wireless screen transmission technology outbreak. According to official data display, 4G mobile internet users account for more than half of the total population of the whole country, and in addition, the users are about to enter the 5G era, so that quality guarantee is provided for the wireless screen transmission technology. The native airplay, microcast and dlna technologies are based on the capabilities of Wi-Fi wireless transmission and a local area network, so that the compatibility problem among devices is solved, and the wireless screen projection effect of the user access device is more convenient and stable and better in viewing effect.
The wireless screen transmission is that the equipment is connected to the same network by using technologies such as Wi-Fi and 4G without a network cable, and data transmission among multiple pieces of equipment is realized in a networking mode; the transmission mode is a point-to-point transmission mode and exchange transmission through a wireless router. However, wireless screenings have the disadvantage that they must be based on screenings under networking. Therefore, it needs to rely on a wireless screen transceiver or router to realize discovery and networking between devices. However, if the devices do not access Wi-Fi or a local area network, or even the internet, the screen transfer requirement between the devices cannot be met.
In some exhibition halls or other places, in order to realize data transmission between different network segments, the networking is realized by adopting a router forwarding mode according to the prior need; in the case of no network, it is difficult to discover each other between devices.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for realizing wireless screen transmission by autonomous networking among multiple devices, the screen transmission end and the receiving end are provided, and the problem that the devices cannot find each other and then are networked under the condition of no network is solved.
In order to solve the above technical problems, the first technical solution adopted by the present invention is:
the method for realizing wireless screen transmission through autonomous networking among multiple devices comprises the following steps:
the screen transmission end carries out Bluetooth broadcast on data comprising an IP address, a port number and a Wi-Fi name;
the receiving end finds the Bluetooth broadcast and reads the data;
and the receiving end sets the data into the screen transmission assembly.
The second technical scheme provided by the invention is as follows:
a screen transmission end comprises a Bluetooth module, a screen transmission assembly and a first program; when being executed by a processor of the screen transmission end, the first program can realize the steps related to the screen transmission end in the method for realizing wireless screen transmission through autonomous networking among multiple devices.
The third technical scheme provided by the invention is as follows:
a receiving end comprises a Bluetooth module, a screen transmission assembly and a second program; when being executed by a processor of a receiving end, the second program can realize the steps related to the receiving end in the method for realizing wireless screen transmission through autonomous networking among multiple devices.
The invention has the beneficial effects that: the invention utilizes the Bluetooth self-discovery capability to discover devices, so that a receiving end can acquire networking data of a screen transmission end, thereby realizing the autonomous networking of multiple devices in a network-free state and providing support for wireless screen transmission of the multiple devices. The invention has the function of assisting the autonomous networking among the multiple devices under the condition of no network, and has the characteristics of simple and convenient operation, high practicability and the like.
Drawings
Fig. 1 is a schematic flowchart of a method for implementing wireless screen transmission through autonomous networking between multiple devices according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a method for implementing wireless screen transmission through autonomous networking between multiple devices according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for implementing wireless screen transmission through autonomous networking between multiple devices according to a second embodiment of the present invention.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the mutual discovery among the devices is carried out by utilizing the Bluetooth self-discovery capability, so that the receiving end can acquire the networking data of the screen transmitting end, and the autonomous networking among the devices under the network-free state is realized.
The technical terms related to the invention are explained as follows:
bluetooth, a wireless technology, enables short-range data exchange between devices. After the Bluetooth is started, the devices consistent with the ISM wave band of 2.4-2.485GHZ can be searched by UHF radio waves of the wave band, and the devices can be found mutually, so that the Bluetooth has the characteristic which is not possessed by other wireless technologies. The present invention fully utilizes the self-discovery capability of bluetooth to solve the problems existing in the background art.
Referring to fig. 1, the present invention provides a method for implementing wireless screen transmission through autonomous networking among multiple devices, including:
the screen transmission end carries out Bluetooth broadcast on data comprising an IP address, a port number and a Wi-Fi name;
the receiving end finds the Bluetooth broadcast and reads the data;
and the receiving end sets the data into the screen transmission assembly.
From the above description, the beneficial effects of the present invention are: the problem that networking cannot be performed among multiple devices under the condition of no network is solved by using the self-discovery capability of Bluetooth; the invention has the advantages of convenient operation, strong practicability and the like.
Further, the screen transmission end performs bluetooth broadcast on data including an IP address, a port number, and a Wi-Fi name, specifically:
the screen transmission end acquires data comprising an IP address, a port number and a Wi-Fi name from the local and stores the data to a variable Storage;
the screen transmission end reads the variable Storage and writes the variable Storage into broadcast data;
the screen transmission end sets the broadcast data under a manufacturer attribute node in a broadcast object;
and the screen transmitting end starts a broadcast service and transmits UHF electric waves containing a screen transmitting end equipment object and the broadcast object.
As can be seen from the above description, by writing the data used for networking by the screen-transmitting end into the customized broadcast protocol object as broadcast data, the networking data of the screen-transmitting end is transmitted to UHF electric waves in the form of bluetooth GAP.
Further, the receiving end finds the bluetooth broadcast and reads the data, specifically:
the receiving end is adapted to the UHF electric wave and analyzes the broadcast object and the screen transmitting end equipment object from the UHF electric wave;
the receiving end reads the broadcast data from the broadcast object;
and the receiving end analyzes the broadcast data to obtain the data.
As can be seen from the above description, the receiving end that starts the bluetooth search function can analyze and acquire the networking data of the screen transmitting end included in the band after being adapted to the same band, thereby realizing the mutual discovery between the screen transmitting end and the receiving end; and can provide support for realizing autonomous networking based on networking data.
Further, the receiving end sets the data to a screen transmission assembly, specifically:
and the receiving end sets the analyzed and acquired data and the screen transmission end equipment object into a screen transmission assembly.
According to the description, the screen transmission component of the receiving end can still acquire networking data of the screen transmission end under the condition of no network, and support is provided for initiating networking to the screen transmission end based on the data subsequently.
Further, if the receiving end fails to execute the step of reading the data, the following steps are executed:
the receiving end and the screen transmission end establish connection through a GATT protocol;
and the receiving end acquires the data from the screen transmission end through the connection.
As can be seen from the above description, for Mac OS and iOS systems that do not allow data to be set in a broadcast, the present invention additionally provides a scheme for mutual discovery and acquisition of networking data between devices based on the bluetooth GATT protocol, thereby realizing autonomous networking, realizing compatibility with different operating systems, and improving practicality.
Further, the receiving end and the screen transmission end establish connection through a GATT protocol, specifically:
the receiving end establishes connection with the GATT SERVER thread of the screen transmission end through the GATT CLIENT thread.
According to the description, the screen transmission end is used as the server side, the receiving end is used as the client side, the Bluetooth communication protocol based on the GATT is established, the receiving end actively acquires networking data from the screen transmission end and initiates networking to the screen transmission end, and therefore the receiving end can freely perform networking with a plurality of screen transmission ends of different possible types without being incompatible with equipment due to the fact that ports opened by different platforms of wireless screen transmission are inconsistent.
Further, the receiving end obtains the data from the screen transmitting end through the connection, specifically:
the receiving end writes the screen transmission end equipment object into a routing table of the receiving end;
the screen transmission end writes the equipment object of the receiving end into a routing table of the screen transmission end;
the receiving terminal requests the screen transmission terminal to acquire the data through GATT CLIENT threads;
after receiving the request, the GATT SERVER thread at the screen transmitting end acquires a receiving end equipment object from a routing table of the receiving end, reads the data from the local and assigns the data to the receiving end equipment object;
and the receiving end reads the data sent by the screen transmitting end.
It can be known from the above description that networking is performed between the receiving end and the screen transmitting end by fully utilizing the principle of the repeater, so that free networking can be performed without being limited by the number of devices under the condition of no network, and data intercommunication is performed.
Further, still include:
and the screen transmission assembly of the receiving end starts screen transmission service according to the data and initiates a connection establishment instruction to the screen transmission end.
As can be seen from the above description, the receiving end can initiate a networking request to the screen transmission end according to the acquired networking data of the screen transmission end, thereby implementing screen transmission.
The second technical scheme provided by the invention is as follows:
a screen transmission end comprises a Bluetooth module, a screen transmission assembly and a first program; when being executed by a processor of the screen transmission end, the first program can realize the steps related to the screen transmission end in the method for realizing wireless screen transmission through autonomous networking among multiple devices.
As can be seen from the above description, the present invention provides a screen transmission terminal capable of discovering each other with a screen transmission receiving terminal based on the bluetooth self-discovery capability under the network-free condition, so that the receiving terminal can acquire networking data of itself, and further, the autonomous networking is realized under the network-free state, and support is provided for the wireless screen transmission of the receiving terminal and the screen transmission receiving terminal.
The third technical scheme provided by the invention is as follows:
a receiving end comprises a Bluetooth module, a screen transmission assembly and a second program; when being executed by a processor of a receiving end, the second program can realize the autonomous networking among the multiple devices and realize the steps related to the receiving end in the wireless screen transmission method.
From the above description, the invention provides a screen transmission receiving end capable of discovering each other based on the bluetooth self-discovery capability and the screen transmission end under the network-free condition, so as to actively acquire networking data thereof, further realize autonomous networking under the network-free state, and provide support for wireless screen transmission of the bluetooth self-discovery capability and the screen transmission end.
Example one
Referring to fig. 2, the present embodiment provides a method for implementing wireless screen transmission through autonomous networking among multiple devices, which is suitable for enabling autonomous networking among devices setting data in bluetooth broadcast through bluetooth and implementing screen transmission.
Under the condition of no network (certainly, the user can also independently select to adopt the method to realize networking without a network), the method realizes the autonomous networking between the devices without the network, thereby ensuring the normal screen transmission between the devices.
The method comprises the following steps:
s1: and the screen transmission end carries out Bluetooth broadcast on the data comprising the IP address, the port number and the Wi-Fi name.
The step realizes that the screen transmitting end broadcasts networking data through the GAP.
Specifically, this step can be realized by:
s11: after the screen transmission end starts a Bluetooth function, acquiring data for networking, including an IP address, a port number, a Wi-Fi name and the like, from the local, and storing the data into a variable Storage;
s12: the screen transmission end reads the data information in the variable Storage and writes the data information into broadcast data BroadcastData;
s13: the screen transmission end sets the broadcast data BroadcastData under a vendor attribute node of the broadcast object Discovery;
the vendor attribute node of the broadcast object Discovery supports the custom broadcast protocol object, so that the custom broadcast data content is realized through the step.
S14: and the screen transmission end starts a Bluetooth GAP (GAP application program), starts a Bluetooth broadcast service and sends UHF (ultra high frequency) electric waves containing the screen transmission end equipment object and the broadcast object Discovery.
S2: the receiving end starts the Bluetooth and sends UHF electric waves;
s3: the receiving end finds the UHF electric wave sent by the screen transmitting end and reads broadcast data broadcastData from the UHF electric wave;
the step can be specifically realized by the following substeps:
s31: the receiving end is adapted to the UHF electric wave sent by the screen transmitting end, and the broadcast object Discovery and the screen transmitting end equipment object are analyzed from the UHF electric wave;
s32: the receiving end reads the broadcast data BroadcastData from the broadcast object Discovery;
s33: and the receiving terminal analyzes the broadcast data BroadcastData and acquires networking data of the screen transmission terminal, including an IP address, a port number, a Wi-Fi name and the like.
S4: and the receiving end sets the analyzed and acquired data and the screen transmission end equipment object into a screen transmission assembly.
The technical idea of the embodiment is as follows: because the ports opened by different platforms of the wireless transmission screen are different, all the devices transmit information such as the IP address of the device, the port number of the transmission screen, the name of the wireless WiFi and the like to UHF electric waves in a GAP mode; after other equipment is adapted to the same wave band, the broadcast data is read from the wave band, the message information carried in the broadcast is analyzed, and the information such as the IP address of the opposite side, the port number of the screen transmission, the name of the wireless WiFi and the like is set in the component of the wireless screen transmission, so that the capability of the wireless screen transmission is realized.
Example two
Referring to fig. 3, the present embodiment is further extended on the basis of the first embodiment to support autonomous networking between devices that do not allow data to be set in bluetooth broadcast through bluetooth, and to implement screen transmission.
Generally, in order to ensure data consistency,MAC Othe authorities of S and iOS do not allow setting data in the broadcast. For such devices that do not support customized bluetooth broadcast data, the present embodiment provides a method for implementing autonomous networking between devices through bluetooth GATT, and the same points as those in the first embodiment are not repeated, but the differences are as follows:
in the step S3, if the receiving end cannot read the data broadcast by the screen transmitting end, that is, cannot analyze the broadcast object Discovery and the screen transmitting end device object, the following steps are performed:
s5: the receiving end and the screen transmission end establish connection through a GATT protocol;
specifically, the receiving end establishes connection with the GATT SERVER thread of the screen transmission end through the GATT CLIENT thread; before this, also include: the receiving end respectively creates GATT CLIENT thread and a routing table; the screen transmission end respectively creates GATT SERVER threads and a routing table;
s6: the receiving end acquires the data from the screen transmission end through the connection;
specifically, this step includes the following substeps:
s61: the receiving end writes the connected screen transmission end equipment object into a routing table of the receiving end;
s62, the screen transmitting end writes the connected receiving end equipment object into the routing table of the screen transmitting end;
s63: the receiving end requests the screen transmission end to acquire the data through the GATT CLIENT thread, namely broadcast data BroadcastData;
s64: after receiving the request, the GATT SERVER thread of the screen transmission end acquires a receiving end equipment object from a routing table of the receiving end equipment object, reads data which are used for networking and correspond to the receiving end equipment object, such as an IP address, a port number and a Wi-Fi name, from the local, and assigns the data to the receiving end equipment object;
s65: and the receiving end reads the data sent by the screen transmitting end.
S7: and the screen transmission assembly of the receiving end starts screen transmission service according to the data and initiates a connection establishment instruction to the screen transmission end.
The technical idea of the embodiment is as follows: when the device cannot acquire data from the broadcast, the device may also acquire the target broadcast data from GATT SERVER by establishing a connection with the GATT. The system has the advantages that the compatibility of the equipment which does not support the self-definition of the broadcast data is realized, and the application range of the scheme is improved; meanwhile, the device can acquire data without establishing a Bluetooth GAP connection under the condition of non-specific requirement, so that the problems of Bluetooth data transmission interruption and the like do not need to be considered.
EXAMPLE III
This embodiment provides a specific application scenario corresponding to the first and second embodiments, and will be described by taking an autonomous networking between a screen transmission device a and a screen transmission receiving device B as an example. The device A can be any device which supports the Bluetooth technology of more than 4.0 and is provided with a screen transmission component, such as a mobile phone, a tablet, a computer and the like; the device B can also be any device which supports the bluetooth technology of 4.0 or more and has a screen transmission component, such as a mobile phone, a tablet, a computer, a projector, an electronic whiteboard, and the like; and a screen transmission component of the equipment adopts Wi-Fi or other modes to transmit the screen. In this embodiment, the bluetooth module is substantially used as a discovery component of a device, so as to implement discovery and networking between devices.
Firstly, both the device A and the device B start a discovery component;
then, device a starts the network; the method comprises the steps that information such as an IP address and a port number of a device A acquired from local equipment is received by the device A and stored in a variable Storage;
then, the device B starts the Bluetooth and sends UHF electric waves;
then, the device a reads the data information of the variable Storage, and writes the data into the object BroadcastData (broadcast data) to be broadcast; the device A adds broadcastData (broadcast data) to a manufacturer data node of the Discovery through the Discovery of the broadcast object;
further, the device a starts the GAP, and turns on the bluetooth, transmitting UHF waves.
Further, the Device B receives the UHF radio wave transmitted from the Device a, and analyzes the broadcast object Discovery of the Device a and the Device object Device of the Device a from the UHF radio wave.
Further, device B reads BroadcastData from Discovery and parses the message.
Further, if the device B parses the message, setting information Storage such as an IP address, a port number of a screen transmission, and a name of the wireless WiFi in the message in the screen transmission component;
if the device B fails to analyze the message, the device B establishes connection with the device A through GATT CLIENT; specifically, GATT CLIENT of device B connects GATT SERVER of device a; GATT CLIENT of device A connects GATT SERVER of device B; the device B writes the device object of the connected device A into the routing table; the device A writes the device object of the connected device B into the routing table; the device B requests the device A to acquire information St such as an IP address, a screen transmission port number and a wireless WiFi name of the device A; GATT SERVER of the device A receives the request sent by the device B, takes out the object of the device B from the routing table, reads the Storage assignment of the local variable to the object; the device B reads the object Storage sent by the device A and transmits the object Storage to the screen transmission component.
Finally, after the screen transmission component of the device B reads St in the Storage, starting screen transmission service and initiating a connection instruction to the device A; after receiving a connection establishing instruction sent by the device B, the device A starts a screen transmission service; the device A establishes connection with the device B through the screen transmission assembly; the device B establishes connection with the device A through the screen transmission assembly; and the device A carries out screen transmission operation on the device B.
The embodiment is based on the Bluetooth technology to solve the pain point of the existing wireless screen transmission, ensure that the devices can be mutually discovered through the Bluetooth, and then perform device networking through data information such as IP addresses and port numbers taken among the devices. This embodiment full play the oneself discovery ability of bluetooth, realize that the equipment passes through the bluetooth discovery again to data acquisition, reaches complementary networking again, passes the screen after realizing the equipment independently networking. Of course, the solutions of the first and second embodiments are not limited to the screen transmission technology, and the solutions can also be applied to commercial fixed-point marketing and education, market promotion.
Example four
Corresponding to the first to third embodiments, the present embodiment provides a screen transmission end, including a bluetooth module, a screen transmission assembly, and a first program; when being executed by a processor of the screen transmission end, the first program can implement the autonomous networking among multiple devices described in any one of the first to third embodiments, and implement the steps related to the screen transmission end in the wireless screen transmission method. The details of the steps are not repeated here, and please refer to the descriptions of the first to third embodiments for details.
EXAMPLE five
Corresponding to the first to third embodiments, the present embodiment provides a receiving end, including a bluetooth module, a screen transmission component, and a second program; when being executed by a processor of a receiving end, the second program can implement the autonomous networking among multiple devices described in any one of the first to third embodiments, and implement the steps related to the receiving end in the method for wirelessly transmitting a screen. The details of the steps are not repeated here, and please refer to the descriptions of the first to third embodiments for details.
Corresponding to the first program and the second program related to the fourth embodiment and the fifth embodiment, it can be understood by those skilled in the art that all or part of the flow corresponding to the screen transmitting end/receiving end in the first to third embodiments can be implemented by computer program instructions and related hardware, the program can be stored in a computer readable storage medium, and when executed, the program can include the flow corresponding to the screen transmitting end/receiving end in the above-mentioned methods.
The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
In summary, the method for realizing wireless screen transmission through autonomous networking among multiple devices, the screen transmission end and the receiving end provided by the invention can be simultaneously suitable for performing autonomous networking and screen transmission under the condition of no network among any devices with the bluetooth function, and simultaneously has the characteristics of simplicity and convenience in operation, high practicability and the like.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (9)
1. The method for realizing wireless screen transmission through autonomous networking among multiple devices is characterized by comprising the following steps:
the screen transmission end carries out Bluetooth broadcast on data comprising an IP address, a port number and a Wi-Fi name;
the receiving end finds the Bluetooth broadcast and reads the data;
the receiving end sets the data into a screen transmission assembly;
if the receiving end fails to execute the step of reading the data, executing:
the receiving end and the screen transmission end establish connection through a GATT protocol;
and the receiving end acquires the data from the screen transmission end through the connection.
2. The method for realizing wireless screen transmission through autonomous networking among multiple devices according to claim 1, wherein the screen transmission end performs bluetooth broadcast on data including an IP address, a port number, and a Wi-Fi name, and specifically comprises:
the screen transmission end acquires data comprising an IP address, a port number and a Wi-Fi name from the local and stores the data to a variable Storage;
the screen transmission end reads the variable Storage and writes the variable Storage into broadcast data;
the screen transmission end sets the broadcast data under a manufacturer attribute node in a broadcast object;
and the screen transmitting end starts a broadcast service and transmits UHF electric waves containing a screen transmitting end equipment object and the broadcast object.
3. The method for realizing wireless screen transmission through autonomous networking among multiple devices according to claim 2, wherein the receiving end discovers the bluetooth broadcast and reads the data, and specifically comprises:
the receiving end is adapted to the UHF electric wave and analyzes the broadcast object and the screen transmitting end equipment object from the UHF electric wave;
the receiving end reads the broadcast data from the broadcast object;
and the receiving end analyzes the broadcast data to obtain the data.
4. The method for realizing wireless screen transmission through autonomous networking among multiple devices according to claim 3, wherein the receiving end sets the data into a screen transmission component, specifically:
and the receiving end sets the analyzed and acquired data and the screen transmission end equipment object into a screen transmission assembly.
5. The method for realizing wireless screen transmission through autonomous networking among multiple devices according to claim 1, wherein the receiving end and the screen transmission end establish connection through a GATT protocol, specifically:
the receiving end establishes connection with the GATT SERVER thread of the screen transmission end through the GATT CLIENT thread.
6. The method for realizing wireless screen transmission through autonomous networking among multiple devices according to claim 5, wherein the receiving end acquires the data from the screen transmission end through the connection, specifically:
the receiving end writes the screen transmission end equipment object into a routing table of the receiving end;
the screen transmission end writes the equipment object of the receiving end into a routing table of the screen transmission end;
the receiving terminal requests the screen transmission terminal to acquire the data through GATT CLIENT threads;
after receiving the request, the GATT SERVER thread at the screen transmitting end acquires a receiving end equipment object from a routing table of the receiving end, reads the data from the local and assigns the data to the receiving end equipment object;
and the receiving end reads the data sent by the screen transmitting end.
7. The method for implementing wireless screen transmission through autonomous networking among multiple devices as claimed in claim 1, further comprising:
and the screen transmission assembly of the receiving end starts screen transmission service according to the data and initiates a connection establishment instruction to the screen transmission end.
8. A screen transmission end is characterized by comprising a Bluetooth module, a screen transmission assembly and a first program; the first program, when being executed by a processor of a screen transmission end, can implement the steps of any one of the above claims 1 to 7, in a method for implementing wireless screen transmission through autonomous networking among multiple devices.
9. A receiving end is characterized by comprising a Bluetooth module, a screen transmission assembly and a second program; the second program, when executed by a processor of a receiving end, is capable of implementing the steps of any one of the above claims 1 to 7 in a method for implementing wireless screen transmission through autonomous networking between multiple devices.
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| CN106604212A (en) * | 2016-12-21 | 2017-04-26 | 深圳市北电仪表有限公司 | Mesh networking method based on BLE attribute and GATT |
| CN108322790A (en) * | 2018-01-30 | 2018-07-24 | 北京小鱼易连科技有限公司 | Wireless screen transmission method and device |
| CN109194903A (en) * | 2018-10-17 | 2019-01-11 | 上海赛连信息科技有限公司 | A kind of method and apparatus based on public WiFi wireless screen transmission |
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