CN108012167B - Projection service and request method and device - Google Patents
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- CN108012167B CN108012167B CN201610949940.4A CN201610949940A CN108012167B CN 108012167 B CN108012167 B CN 108012167B CN 201610949940 A CN201610949940 A CN 201610949940A CN 108012167 B CN108012167 B CN 108012167B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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Abstract
The projection service and request method and device of the invention use embedded system equipment as a service end for providing projection service, start wireless access point function for direct wireless connection of user terminals, and detect whether the connected user terminals are accessed for the first time; if so, the embedded server provides a projection client program for the user terminal accessed for the first time to download; if not, the embedded server receives and sends a data packet which is sent by a user terminal loaded with a projection client program and used for starting a projection request and contains the data of the image to be projected, and projection is formed corresponding to the data of the image to be projected through the connected projection equipment; compared with the computer server in the prior art, the technical scheme of the invention has the advantages of low cost, strong portability, convenient operation, low power consumption and the like, and further, the network transmission performance can be optimized by combining the improvement of a data processing mode.
Description
Technical Field
The present invention relates to the field of image projection technologies, and in particular, to a projection service and request method and apparatus.
Background
At present, in daily activities of enterprises, a Video Graphics Array (VGA) or high-definition multimedia interface (HDMI) wire is generally used in a conference room to connect a computer and projection equipment, the wire is not long enough or the computer does not have a corresponding interface and can not be connected under many conditions, and when a plurality of people meet and different computers need to be switched for display, a transmission wire needs to be plugged and pulled, so that the conference progress and the continuity are influenced. Sometimes, when the content on the mobile phone or the tablet computer needs to be displayed, the content cannot be directly projected onto the projection equipment.
Moreover, it is important to use a computer server as a host, and a device that needs to project a screen is connected to the computer server, and the computer server transmits a received picture to a projection device through a data line.
At present, some products have wireless screen projection functions, but the requirements on hardware are high, the supported functions are many, and the use is complex.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a projection service, a request method and an apparatus thereof, which utilize an embedded system-based device as a projection server, have high integration level to simplify the device structure, and improve data transmission efficiency in cooperation with other optimized settings, so as to solve the problems caused by the common adoption of a computer server for projection in the prior art.
In order to achieve the above and other related objects, the present invention provides a projection service method applied to an embedded server connected with a projection device, the method including: starting a wireless access point function of the embedded server to allow the user terminal to be in direct wireless connection; detecting whether a connected user terminal is accessed for the first time; if so, the embedded server provides a projection client program for the user terminal accessed for the first time to download; and if not, the embedded server receives and sends a data packet which is sent by the user terminal loaded with the projection client program and used for starting the projection request and contains the data of the image to be projected, and the projection is formed corresponding to the data of the image to be projected through the connected projection equipment.
In an embodiment of the invention, the projection client is an installation-free program and/or a self-starting program.
In an embodiment of the present invention, the providing, by the embedded server, a projection client program for downloading by the user terminal that is accessed for the first time includes: the embedded server acquires the configuration information of the accessed user terminal and provides an adaptive projection client program for downloading.
In an embodiment of the present invention, the receiving, by the embedded server, a data packet containing data of an image to be projected, the data packet being sent by a user terminal loaded with a projection client program and having a projection request, and forming a projection corresponding to the data of the image to be projected by using a connected projection device, includes: and the embedded server extracts the data of the image to be projected, decodes the data by hardware and projects the decoded data.
In an embodiment of the present invention, the data packet further includes audio data synchronized with the image data to be projected, and the embedded system service terminal further extracts and plays the audio data after hardware decoding.
In an embodiment of the present invention, the projection method includes: projecting the data of images to be projected of a plurality of user terminals together; or the data of the image to be projected of one user terminal is projected separately.
In an embodiment of the present invention, the projection service method includes: the embedded server side initiates a projection inquiry to the connected user terminal loaded with the projection client program; and the embedded server receives the response result of the projection inquiry so as to judge whether to perform projection or not.
In an embodiment of the present invention, the embedded service terminal is configured not to cache the network transmission data sent or received.
In order to achieve the above and other related objects, the present invention provides a projection request method applied to a user terminal, including: the user terminal is wirelessly connected with a wireless access point function at the embedded server; and the projection client program downloaded from the embedded server or the loaded projection client program is operated to initiate a projection request to the embedded server and send a data packet containing image data to be projected.
In an embodiment of the invention, the projection client is an installation-free program and/or a self-starting program.
In an embodiment of the present invention, the running the projection client program downloaded from the embedded server or the loaded projection client program to initiate the projection request to the embedded server includes: a user terminal initiates a detection request for detecting whether the user terminal is connected with projection equipment or not to a wirelessly connected embedded server through a projection client program; when the response of the user terminal receiving the detection request is existence, prompting a projection option at the user terminal for selection; and when the selected projection option represents the confirmed projection, the user terminal generates the projection request and sends the projection request to the embedded server.
In an embodiment of the present invention, the projection request method includes: under the condition that the used projection client program detects that the client terminal can establish wireless connection with the embedded server, projection options are prompted to be selected at the user terminal; and when the selected projection option represents the projection confirmation, the user terminal establishes connection with the embedded server and generates and sends the projection request.
In an embodiment of the present invention, before sending the data packet including the image data to be projected, the method includes: acquiring configuration information of a user terminal; and the projection client program performs adaptation processing on the data of the image to be projected according to the configuration information of the user terminal.
In an embodiment of the present invention, the configuration information includes: one or more of electronic hardware information, network condition information, and display parameter information of the user terminal.
In an embodiment of the present invention, the data of the image to be projected is a screen image of the user terminal.
In an embodiment of the invention, the data packet further includes audio data synchronized with the image data to be projected.
In an embodiment of the present invention, the projection request method includes: and the user terminal sends a projection parameter setting instruction to the embedded server through the projection client program.
In an embodiment of the present invention, the ue is configured not to buffer the network transmission data sent or received.
In order to achieve the above and other related objects, the present invention provides a projection service device, applied to an embedded service end connected with a projection device, the projection service device including: the network module is used for starting a wireless access point function so as to enable the user terminal to be in direct wireless connection; the authentication module is used for detecting whether the connected user terminal is accessed for the first time; the storage module is used for providing a projection client program for downloading by the user terminal accessed for the first time when the authentication result of the authentication module is positive; and the image processing module is used for receiving a data packet which is sent by a user terminal loaded with a projection client program and initiates a projection request and contains the data of the image to be projected when the authentication result of the authentication module is negative, and forming projection corresponding to the data of the image to be projected through the connected projection equipment.
In an embodiment of the invention, the projection device and the embedded server are respectively connected to two power output ends of a three-terminal power device.
In an embodiment of the invention, the projection client is an installation-free program and/or a self-starting program.
In an embodiment of the present invention, the providing, by the embedded server, a projection client program for downloading by the user terminal that is accessed for the first time includes: the embedded server acquires the configuration information of the accessed user terminal and provides an adaptive projection client program for downloading.
In an embodiment of the present invention, the receiving, by the embedded server, a data packet containing data of an image to be projected, the data packet being sent by a user terminal loaded with a projection client program and having a projection request, and forming a projection corresponding to the data of the image to be projected by using a connected projection device, includes: and the embedded server extracts the data of the image to be projected, decodes the data by hardware and projects the decoded data.
In an embodiment of the present invention, the data packet further includes audio data synchronized with the image data to be projected, and the embedded system service terminal further extracts and plays the audio data after hardware decoding.
In an embodiment of the present invention, the projection method includes: projecting the data of images to be projected of a plurality of user terminals together; or the data of the image to be projected of one user terminal is projected separately.
In an embodiment of the present invention, the projection service apparatus includes: the sending module is used for initiating a projection inquiry to the connected user terminal loaded with the projection client program; and the receiving module is used for receiving the response result of the projection inquiry so as to judge whether the projection is carried out or not.
In an embodiment of the present invention, the embedded service terminal is configured not to cache the network transmission data sent or received.
In order to achieve the above and other related objects, the present invention provides a projection request apparatus for a user terminal, comprising: the network module is used for wirelessly connecting the wireless access point function at the embedded server; and the processing module is used for running a projection client program downloaded from the embedded server or a loaded projection client program to initiate a projection request to the embedded server and sending a data packet containing data of images to be projected.
In an embodiment of the present invention, the running the projection client program downloaded from the embedded server or the loaded projection client program to initiate the projection request to the embedded server includes: a user terminal initiates a detection request for detecting whether the user terminal is connected with projection equipment or not to a wirelessly connected embedded server through a projection client program; when the response of the user terminal receiving the detection request is existence, prompting a projection option at the user terminal for selection; and when the selected projection option represents the confirmed projection, the user terminal generates the projection request and sends the projection request to the embedded server.
In an embodiment of the present invention, the running the projection client program downloaded from the embedded server or the loaded projection client program to initiate the projection request to the embedded server includes: under the condition that the used projection client program detects that the client terminal can establish wireless connection with the embedded server, projection options are prompted to be selected at the user terminal; and when the selected projection option represents the projection confirmation, the user terminal establishes connection with the embedded server and generates and sends the projection request.
In an embodiment of the present invention, before sending the data packet including the image data to be projected, the method includes: acquiring configuration information of a user terminal; and the projection client program performs adaptation processing on the data of the image to be projected according to the configuration information of the user terminal.
In an embodiment of the present invention, the configuration information includes: one or more of electronic hardware information, network condition information, and display parameter information of the user terminal.
In an embodiment of the present invention, the data of the image to be projected is a screen image of the user terminal.
In an embodiment of the invention, the data packet further includes audio data synchronized with the image data to be projected.
In an embodiment of the present invention, the projection request apparatus includes: and the sending module is used for sending a projection parameter setting instruction to the embedded server through the projection client program.
In an embodiment of the present invention, the ue is configured not to buffer the network transmission data sent or received.
As described above, the projection service and request method and apparatus of the present invention use the embedded system device as a service end for providing projection service, and start the wireless access point function for the user terminal to directly connect wirelessly, detect whether the connected user terminal is accessed for the first time; if so, the embedded server provides a projection client program for the user terminal accessed for the first time to download; if not, the embedded server receives and sends a data packet which is sent by a user terminal loaded with a projection client program and used for starting a projection request and contains the data of the image to be projected, and projection is formed corresponding to the data of the image to be projected through the connected projection equipment; compared with the computer server in the prior art, the technical scheme of the invention has the advantages of low cost, strong portability, convenient operation, low power consumption and the like, and further, the network transmission performance can be optimized by combining the improvement of a data processing mode.
Drawings
Fig. 1A is a schematic diagram illustrating device connections of a communication system according to an embodiment of the present invention.
Fig. 1B is a schematic structural diagram of an embedded server according to an embodiment of the present invention.
Fig. 2 is a flowchart illustrating a projection request method of a ue according to an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating functional modules of a projection request apparatus of a user terminal according to an embodiment of the invention.
Fig. 4 is a flowchart illustrating a projection service method of an embedded server according to an embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating functional modules of a projection service apparatus of an embedded server according to an embodiment of the present invention.
Description of the element reference numerals
101 embedded server
1011 embedded microprocessor
1012 memory
1013 general purpose device interface
102 user terminal
301 first network module
302 authentication module
303 storage module
304 image processing module
501 second network module
502 processing module
S201 to S204
S401 to S402
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1A, a schematic diagram of a device connection structure of a communication system for implementing a projection service according to an embodiment of the present invention is shown, where the system includes an embedded server 101 and a user terminal 102.
In an embodiment, the embedded server 101 may be implemented based on an embedded processing device, and at a hardware level, as shown in fig. 1B, the embedded processing device includes an embedded microprocessor 1011, such as a processor chip of an architecture of ARM, MIPS, PowerPC, or the like; a memory 1012 such as a Cache, a main memory (ROM type NOR Flash, EPROM, PROM, and the like, RAM type SRAM, DRAM, SDRAM, and the like), and other auxiliary memories; the universal device interface 1013 includes, for example, an a/D (analog/digital conversion interface) and a D/a (digital/analog conversion interface), and the I/O interface includes an RS-232 interface (serial communication interface), an Ethernet interface (wireless Ethernet interface is used in the present invention), a USB (universal serial bus interface), an audio interface, a VGA video output interface, I2C (field bus), an SPI (serial peripheral device interface), an IrDA (infrared ray interface), and an I/O interface.
In this embodiment, the embedded server 101 is connected to the projection device through a display output interface such as HDMI or VGA, preferably, the embedded server 101 and the projection device can use the same power supply device for power supply, the power supply device can have two output ends and one input end, the input end can be connected to the commercial power, the two input ends can be respectively connected to the embedded server 101 and the projection device, and the power supply device can be simplified into a bifurcated power line without voltage transformation, so that the occupation amount of a power socket can be reduced, and the working efficiency can be improved; the embedded server 101 is different from the existing computer server equipment, and can integrate a wireless communication module, thereby providing a wireless hotspot function for the direct connection of the user terminal 102, omitting the existing switching devices such as a wireless router, a wireless network card and the like, and reducing the cost.
In an embodiment of the present invention, the user terminal 102 is, for example, a computer, and may also be, for example, a mobile terminal such as a mobile phone and a tablet computer.
The embedded server 101 provides a projection service for the user terminal 102, and specifically, as shown in fig. 2, an embodiment of a projection service method of the embedded server 101 is displayed, where the method includes:
step S201: and starting the wireless access point function of the embedded server for the direct wireless connection of the user terminal.
In an embodiment, the wireless access point may be implemented by a WiFi hotspot function, and an existing network switching device such as a router may be omitted by using a direct connection manner; as an actual scenario, for a small space of a conference room in an enterprise, the embedded server is arranged therein, and the transmission distance of the WiFi hotspot is enough to provide stable network transmission, so that each user terminal in the conference room can quickly establish connection with the embedded server.
The embedded server can select a TCP or UDP communication protocol for the wireless connection according to the requirements of the network environment.
Step S202: detecting whether a connected user terminal is accessed for the first time; if so, the process proceeds to step S203, and if not, the process proceeds to step S204.
In an embodiment of the present invention, the embedded server may identify the user terminal through an IP address, an MAC address, or other identification information that can be used to identify the identity of the user terminal, so as to determine whether the user terminal is accessed for the first time by matching whether a corresponding record exists in the history access record.
Step S203: and the embedded server provides a projection client program for downloading by the user terminal accessed for the first time.
In an embodiment of the present invention, the user terminal that is accessed for the first time downloads the projection client program, so that the projection client program communicates with the server program of the embedded server through a specific port to implement the projection service.
Preferably, the projection client program is an installation-free program and/or a self-starting program, for example, a program required for operation is packaged for downloading by a user terminal, and the program can be directly operated after decompression; furthermore, the projection client program is installed in the user terminal, and may be set to a self-starting state by default, so as to implement a function of automatically detecting whether there is a connectable embedded server, and establishing a connection, for example, but the invention is not limited thereto, and the projection client program may also be a program that needs to be installed.
Preferably, the embedded server may obtain configuration information of the accessed user terminal, where the configuration information includes: for example, device type information: smart phones, computers and their models; the operating system being run: windows desktop version or mobile version, Android desktop version or mobile version, and IOS desktop version or mobile version, and provide the adaptive projection client program for downloading; for example, the user wirelessly connects to the embedded server for the first time by using samsung S6 (e.g., based on the Android 6.0 operating system), and after the embedded server obtains the information of the user terminal, the embedded server provides a projection client program adapted to samsung S6 and the Android 6.0 operating system for downloading; of course, the embedded server may also list all versions of the projection client programs for the user terminal to select to download.
For another example, the user uses an apple IPHONE mobile phone (e.g., based on the IOS10.1 operating system) to wirelessly connect with the embedded server for the first time, and after the embedded server obtains the information of the user terminal, the embedded server can provide a corresponding link that jumps to the apple app store for downloading the projection client program.
Step S204: the embedded server receives and sends a data packet which is sent by a user terminal loaded with a projection client program and used for sending a projection request and contains data of the image to be projected, and projection is formed corresponding to the data of the image to be projected through the connected projection equipment.
In an embodiment of the present invention, the embedded server extracts the data of the image to be projected from the data packet, decodes the data by the embedded chip hardware, and projects the data, preferably, the data packet further includes audio data synchronized with the data of the image to be projected, and the embedded system service terminal further extracts the data and plays the audio data after decoding the data by the embedded chip hardware, and specifically, the embedded system service terminal may be integrated with a speaker module or connected to an external speaker through a line to play the audio data.
Preferably, the embedded server may also actively or passively inquire the connected user terminal whether it is determined that projection is needed, and determine whether projection is needed according to a response result; for example: when receiving a projection request initiated by a user terminal B through a projection client program, an embedded server A sends a query message to the user terminal B to inquire whether to determine projection, if so, the embedded server A performs projection, otherwise, the embedded server A does not perform projection; or, the embedded server a actively sends an inquiry message to the wirelessly accessed user terminal B, and projects the inquiry message if receiving a message of determining a response of the user terminal B, or does not project the inquiry message if not.
The projection mode comprises the following steps: projecting the image data to be projected of a plurality of user terminals together, for example, displaying in a split screen or picture-in-picture manner; or the image data to be projected of one user terminal is projected independently, for example, in a video conference among a plurality of user terminals, only the image provided by one user terminal which has the initiative is projected; or the image data to be projected of a plurality of user terminals are projected in sequence according to a preset sequence.
In an embodiment, the embedded service terminal is configured not to buffer the transmitted or received network transmission data, and to compress and transmit the data in real time, so as to achieve low latency.
In an embodiment, the embedded service terminal is configured to buffer the received network transmission data, so that the projection device continuously projects the image data to be projected of the plurality of user terminals according to a predetermined sequence or projects the image data to be projected of the plurality of user terminals in parallel.
As shown in fig. 3, a projection service apparatus for implementing the projection service method is provided, and is applied to the embedded server 101, where the projection service apparatus includes: a first network module 301, an authentication module 302, a storage module 303, an image processing module 304, and the like.
The first network module 301 is configured to start a wireless access point function for a user terminal to directly wirelessly connect. Preferably, a list of user terminals allowed to access is preset in the projection service apparatus, and the first network module 301 may further verify whether the connected user terminal is a user authorized to access, if so, establish a wireless connection, otherwise, prohibit access.
The authentication module 302 is configured to detect whether the connected ue is accessed for the first time.
The storage module 303 is configured to provide a projection client program for downloading by the user terminal that is accessed for the first time when the authentication result of the authentication module is yes.
The image processing module 304 is configured to receive a data packet containing data of an image to be projected, which is sent by a user terminal loaded with a projection client program and initiating a projection request, and form a projection corresponding to the data of the image to be projected through a connected projection device, if an authentication result of the authentication module is negative.
The functions of the modules in the projection service device can be realized by loading and running programs through an embedded hardware system in the embedded service end, namely, reading and running various programs stored in a memory through an embedded microchip in the embedded system.
In an embodiment of the invention, the projection client is an installation-free program and/or a self-starting program.
In an embodiment of the present invention, the providing, by the embedded server, a projection client program for downloading by the user terminal that is accessed for the first time includes: the embedded server acquires the configuration information of the accessed user terminal and provides an adaptive projection client program for downloading.
In an embodiment of the present invention, the receiving, by the embedded server, a data packet containing data of an image to be projected, the data packet being sent by a user terminal loaded with a projection client program and having a projection request, and forming a projection corresponding to the data of the image to be projected by using a connected projection device, includes: and the embedded server extracts the data of the image to be projected, decodes the data by hardware and projects the decoded data.
In an embodiment of the present invention, the data packet further includes audio data synchronized with the image data to be projected, and the embedded system service terminal further extracts and plays the audio data after hardware decoding.
In an embodiment of the present invention, the projection method includes: projecting the data of images to be projected of a plurality of user terminals together; or the data of the image to be projected of one user terminal is projected separately.
In an embodiment of the present invention, the projection service apparatus includes: the sending module is used for initiating a projection inquiry to the connected user terminal loaded with the projection client program; and the receiving module is used for receiving the response result of the projection inquiry so as to judge whether the projection is carried out or not.
In an embodiment of the present invention, the embedded service terminal is configured not to cache the network transmission data sent or received.
It should be noted that the principle of the projection service apparatus is substantially the same as that of the projection service method, and therefore, the same technical details are not repeated.
As further shown in fig. 4, the present invention provides a projection request method, applied to the user terminal 102, the method includes:
step S401: and establishing wireless connection with a wireless access point at the embedded server.
In an embodiment of the present invention, the user terminal may be an electronic device, such as a smart phone, a tablet computer, and the like, which is integrated with a wireless module (e.g., a WiFi module, a GPRS module), and the like, so as to establish a wireless connection with an embedded server that starts a function of a wireless access point.
Step S402: and running a projection client program downloaded from the embedded server or the loaded projection client program to initiate a projection request to the embedded server and sending a data packet containing image data to be projected.
In an embodiment of the present invention, the user terminal accessing the embedded server for the first time downloads the projection client program and then runs the projection client program, and the user terminal loaded with the projection client program directly runs the projection client program so as to initiate a projection request to the embedded server.
Preferably, the projection client program is an installation-free program and/or a self-starting program, the installation-free program is convenient to use, and the self-starting program is convenient to quickly send a projection request, for example, after the projection client program is started once, the program is started by itself each time, but the invention is not limited thereto, and the projection client program may also be a program that needs to be installed. .
The projection request may be generated from user input, such as: the projection client program monitors the operation input by the user at the user terminal (for example, clicking a projection button on a touch screen), correspondingly generates a projection request and sends the projection request to the embedded server;
alternatively, the projection request may be actively generated by a projection client program of the user terminal:
on one hand, a user terminal initiates a detection request for detecting whether the user terminal is connected with projection equipment to a wirelessly connected embedded server through a projection client program, and when the user terminal receives a response of the detection request as existence, a projection option is prompted to be selected at the user terminal; and when the selected projection option represents the confirmed projection, the user terminal generates the projection request and sends the projection request to the embedded server, wherein the initiation of the detection request can be triggered by user operation, detection of connection of the embedded server by the user terminal, detection of the embedded server by the user terminal within a preset distance from the embedded server by the user terminal, and the like.
For example, when the user terminal C detects that the embedded server D is wirelessly connected, the user terminal C sends a detection request to the embedded server D, and the embedded server D detects that the embedded server D is connected with the projection device E, the embedded server D indicates that projection is possible in response to the user terminal C, the user terminal C actively displays an option of whether projection is to be performed through a human-computer interaction graphical interface (GUI) for a user to select, and if the user selects, the user terminal C can initiate a projection request to the embedded server.
On the other hand, the user terminal can also realize the generation of the projection request under the condition that the wireless connection with the embedded server is not established:
for example, when a used projection client program detects that a client terminal can establish wireless connection with an embedded server, a projection option is prompted on the user terminal for selection; and when the selected projection option represents the projection confirmation, the user terminal establishes connection with the embedded server and generates and sends the projection request.
For example, the user terminal F uses its projection client program to perform projection work, and then, when the user terminal F and the embedded server G are both located within the wireless signal coverage of the other party, i.e., when a wireless connection can be established, the projection client program displays an option of whether to perform projection on the user terminal F through a human-computer interaction graphical interface (GUI) for the user to select, and if so, the projection request can be initiated after the wireless connection is established with the embedded server G.
In an embodiment of the present invention, the data of the image to be projected may be screen image data of a user terminal, and the projection client program may obtain the screen image data by capturing a screen, preferably, capturing the screen may be performed according to bottom layer functions provided by different operating systems; the user terminal may also acquire audio data synchronized with the data of the image to be projected, for example, by a sound pickup (e.g., a microphone) in real time, or receive already existing audio data, etc.; generating audio and video data (in formats such as MP4, MPEG and the like) by the data of the image to be projected and the synchronous audio data, packaging the data into a data packet, and sending the data packet to an embedded server; of course, the data to be projected may be packaged and transmitted separately, but not limited to the foregoing.
In an embodiment of the present invention, the data of the image to be projected and/or the audio data synchronized with the data of the image to be projected may be optimized, for example, optimized according to configuration information of a user terminal, so as to achieve the purpose of considering both display and/or sound effects and smooth transmission, where the configuration information includes: one or more of electronic hardware information, network condition information, and display parameter information of the user terminal, such as screen resolution, network bandwidth, and/or CPU performance.
For example, in a certain network environment, it is calculated that video is encoded using H264 format, and the frame rate is 25 frames as an optimal way, and data processing is performed in this way.
In an embodiment of the present invention, the projection request method further includes: the user terminal sends a projection parameter setting instruction to the embedded server through a projection client program of the user terminal, for example, parameters such as the position and the size (such as the aspect ratio) of a projection image are adjusted.
In an embodiment of the present invention, the user terminal is configured not to cache the network transmission data sent or received, so as to improve the smoothness of data transmission with the embedded server.
As shown in fig. 5, the present invention provides a projection request apparatus applied to the user terminal 102, the projection request apparatus including: a second network module 501 and a processing module 502.
And a second network module 501, configured to wirelessly connect to a wireless access point function located at the embedded server.
A processing module 502, configured to run a projection client program downloaded from the embedded server or a loaded projection client program to initiate a projection request to the embedded server, and send a data packet containing data of an image to be projected.
In an embodiment of the present invention, the running the projection client program downloaded from the embedded server or the loaded projection client program to initiate the projection request to the embedded server includes: a user terminal initiates a detection request for detecting whether the user terminal is connected with projection equipment or not to a wirelessly connected embedded server through a projection client program; when the response of the user terminal receiving the detection request is existence, prompting a projection option at the user terminal for selection; and when the selected projection option represents the confirmed projection, the user terminal generates the projection request and sends the projection request to the embedded server.
In an embodiment of the present invention, the running the projection client program downloaded from the embedded server or the loaded projection client program to initiate the projection request to the embedded server includes: under the condition that the used projection client program detects that the client terminal can establish wireless connection with the embedded server, projection options are prompted to be selected at the user terminal; and when the selected projection option represents the projection confirmation, the user terminal establishes connection with the embedded server and generates and sends the projection request.
In an embodiment of the present invention, before sending the data packet including the image data to be projected, the method includes: acquiring configuration information of a user terminal; and the projection client program performs adaptation processing on the data of the image to be projected according to the configuration information of the user terminal.
In an embodiment of the present invention, the configuration information includes: one or more of electronic hardware information, network condition information, and display parameter information of the user terminal.
In an embodiment of the present invention, the data of the image to be projected is a screen image of the user terminal.
In an embodiment of the invention, the data packet further includes audio data synchronized with the image data to be projected.
In an embodiment of the present invention, the projection request apparatus includes: and the sending module is used for sending a projection parameter setting instruction to the embedded server through the projection client program.
In an embodiment of the present invention, the ue is configured not to buffer the network transmission data sent or received.
It should be noted that the principle of the projection request apparatus is substantially the same as that of the projection request method, and therefore, the same technical details are not repeated.
In summary, the projection service, the request method and the apparatus of the present invention use the embedded system device as a service end for providing the projection service, and start the wireless access point function for the user terminal to directly connect wirelessly, and detect whether the connected user terminal is accessed for the first time; if so, the embedded server provides a projection client program for the user terminal accessed for the first time to download; if not, the embedded server receives and sends a data packet which is sent by a user terminal loaded with a projection client program and used for starting a projection request and contains the data of the image to be projected, and projection is formed corresponding to the data of the image to be projected through the connected projection equipment; compared with the computer server in the prior art, the technical scheme of the invention has the advantages of low cost, strong portability, convenient operation, low power consumption and the like, and further, the network transmission performance can be optimized by combining the improvement of a data processing mode.
The invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (18)
1. A projection service method is applied to an embedded server connected with projection equipment, and comprises the following steps:
starting a wireless access point function of the embedded server to allow the user terminal to be in direct wireless connection;
detecting whether the connected user terminal is accessed for the first time by matching records in the historical access records;
if so, the embedded server side acquires the configuration information of the accessed user terminal and provides an adaptive projection client program for downloading;
if not, the embedded server receives and transmits a data packet containing image data to be projected, which is sent by a user terminal loaded with a projection client program and comprises projection requests of active projection requests and passive projection requests, and forms projection corresponding to the image data to be projected through connected projection equipment; the embedded server side performs optimization processing on the image data to be projected according to configuration information of a user terminal; and the data packet also comprises audio data synchronous to the image data to be projected, and the embedded server also extracts and plays the audio data after hardware decoding.
2. The projection service method of claim 1, wherein the projection client program is an installation-free program and/or a self-starting program.
3. The projection service method of claim 1, wherein the embedded service end receives and sends a data packet containing data of an image to be projected, which is sent by a user terminal loaded with a projection client program and used for initiating a projection request, and forms a projection corresponding to the data of the image to be projected through a connected projection device, and the method comprises the following steps:
and the embedded server extracts the data of the image to be projected, decodes the data by hardware and projects the decoded data.
4. The projection service method of claim 1, wherein the projecting comprises: projecting the data of images to be projected of a plurality of user terminals together; or the data of the image to be projected of one user terminal is projected separately.
5. The projection service method according to claim 1, comprising:
the embedded server side initiates a projection inquiry to the connected user terminal loaded with the projection client program;
and the embedded server receives the response result of the projection inquiry so as to judge whether to perform projection or not.
6. The projection service method of claim 1, wherein the embedded server is configured not to buffer the network transmission data sent or received.
7. A projection request method is applied to a user terminal, and the method comprises the following steps:
the user terminal is wirelessly connected with a wireless access point function at the embedded server;
the user terminal runs an adaptive projection client program or a loaded projection client program which is downloaded from the embedded server and provided by the embedded server according to configuration information of the user terminal accessed for the first time so as to send a projection request comprising an active projection request and a passive projection request to the embedded server, and sends a data packet containing data of an image to be projected, so that the embedded server forms projection corresponding to the data of the image to be projected through the connected projection equipment; the embedded server side performs optimization processing on the image data to be projected according to configuration information of a user terminal; and the data packet also comprises audio data synchronized with the image data to be projected so that the embedded server can extract the audio data and play the audio data after hardware decoding.
8. The projection request method according to claim 7, wherein the projection client program is an installation-free program and/or a self-starting program.
9. The method for requesting projection according to claim 7, wherein the running of the projection client program downloaded from the embedded server or the loaded projection client program to initiate the projection request to the embedded server comprises:
a user terminal initiates a detection request for detecting whether the user terminal is connected with projection equipment or not to a wirelessly connected embedded server through a projection client program;
when the response of the user terminal receiving the detection request is existence, prompting a projection option at the user terminal for selection;
and when the selected projection option represents the confirmed projection, the user terminal generates the projection request and sends the projection request to the embedded server.
10. The method for requesting projection according to claim 7, wherein the running of the projection client program downloaded from the embedded server or the loaded projection client program to initiate the projection request to the embedded server comprises:
under the condition that the used projection client program detects that the client terminal can establish wireless connection with the embedded server, projection options are prompted to be selected at the user terminal;
and when the selected projection option represents the projection confirmation, the user terminal establishes connection with the embedded server and generates and sends the projection request.
11. The projection request method according to claim 7, before transmitting the data packet containing the data of the image to be projected, comprising:
acquiring configuration information of a user terminal;
and the projection client program performs adaptation processing on the data of the image to be projected according to the configuration information of the user terminal.
12. The projection request method according to claim 11, wherein the configuration information includes: one or more of electronic hardware information, network condition information, and display parameter information of the user terminal.
13. The projection request method according to claim 7, wherein the image data to be projected is a screen image of the user terminal.
14. The projection request method according to claim 7, comprising: and the user terminal sends a projection parameter setting instruction to the embedded server through the projection client program.
15. The projection request method according to claim 7, wherein the user terminal is configured not to buffer the transmitted or received network transmission data.
16. The projection service device is applied to an embedded server connected with projection equipment, and comprises:
the network module is used for starting a wireless access point function so as to enable the user terminal to be in direct wireless connection;
the authentication module is used for detecting whether the connected user terminal is accessed for the first time;
the storage module is used for acquiring the configuration information of the accessed user terminal and providing an adaptive projection client program for downloading when the authentication result of the authentication module is positive;
the image processing module is used for receiving a data packet which is sent by a user terminal loaded with a projection client program and comprises an active projection request and a passive projection request and contains data of the image to be projected when the authentication result of the authentication module is negative, and forming projection corresponding to the data of the image to be projected through connected projection equipment, wherein the embedded server performs optimization processing on the data of the image to be projected according to configuration information of the user terminal; and the data packet also comprises audio data synchronous to the image data to be projected, and the embedded server also extracts and plays the audio data after hardware decoding.
17. The projection service apparatus according to claim 16, wherein the projection device and the embedded service terminal are respectively connected to two power output terminals of a three-terminal power supply apparatus.
18. A projection request device applied to a user terminal, the projection request device comprising:
the network module is used for wirelessly connecting the wireless access point function at the embedded server;
the processing module is used for running an adaptive projection client program or a loaded projection client program which is downloaded from the embedded server and provided by the embedded server according to configuration information of a user terminal accessed for the first time so as to send a projection request comprising an active projection request and a passive projection request to the embedded server and send a data packet containing data of an image to be projected, so that the embedded server forms projection corresponding to the data of the image to be projected through the connected projection equipment; the embedded server side performs optimization processing on the image data to be projected according to configuration information of a user terminal; and the data packet also comprises audio data synchronized with the image data to be projected so that the embedded server can extract the audio data and play the audio data after hardware decoding.
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| CN104156368A (en) * | 2013-05-14 | 2014-11-19 | 北京卓易讯畅科技有限公司 | Method and device for providing application access result |
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Denomination of invention: Projection service, request method and device Granted publication date: 20210323 Pledgee: Renlai Electronic Technology (Shanghai) Co.,Ltd. Pledgor: MONTAGE TECHNOLOGY (SHANGHAI) CO.,LTD.|Montage LZ Technologies (Chengdu) Co.,Ltd. Registration number: Y2024980016169 |