CN114845144A - Screen projection method, auxiliary screen projection device and storage medium - Google Patents
Screen projection method, auxiliary screen projection device and storage medium Download PDFInfo
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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
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
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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
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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
- H04N21/439—Processing of audio elementary streams
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Abstract
The invention provides a screen projection method, an auxiliary screen projection device and a storage medium, wherein the screen projection method comprises the following steps: the auxiliary screen projection device establishes connection with the data source equipment to acquire screen projection data of the data source equipment, and simultaneously acquires an audio signal; the auxiliary screen projection device performs sound mixing elimination, noise reduction and automatic gain processing on the received audio signals; and according to the selection of the user, sending the processed audio signal and the screen projection data to screen projection equipment for real-time screen projection, or sending the processed audio signal and the screen projection data to a storage module for storage and then carrying out cache screen projection. The screen projection method, the auxiliary screen projection device and the storage medium provided by the invention upgrade the traditional conference room, are simple in connection, can call the independent camera in the conference room, and improve the conference experience and the conference efficiency of users.
Description
Technical Field
The invention relates to the technical field of screen projection, in particular to a screen projection method, an auxiliary screen projection device and a storage medium.
Background
In recent years, the communication and communication mode between people has changed significantly, and the communication changes from general offline communication and online communication, and people will become a normal state by using a teleconference for a long time in the future, and the work of many people shifts to online in the night. This transformation is an inexhaustible proposition, but the benefits of digitization are profound after people have become accustomed to this form of online communication. The system has the advantages of higher efficiency, lower cost, more flexible and changeable forms and different experiences for people.
In order to facilitate display in local conferences and remote conferences, most of the terminals need to use screen projection, that is, contents displayed by small-screen mobile terminals such as notebook computers and mobile phones are projected to screen projection equipment such as large-screen all-in-one machines and televisions, so that participants can watch the contents conveniently. In the existing screen projection scheme, a mobile terminal is directly connected with screen projection equipment, independent systems such as a camera and a microphone in a conference room are connected for many times, and the subsystems can only be matched with a fixed system, so that a host machine is difficult to be switched rapidly, and some subsystems can not be connected with the screen projection equipment. For example, when a meeting is started by using a notebook computer, only the camera and the microphone of the notebook computer can be called, and the original camera or microphone of the meeting room is difficult to call. In addition, the existing direct-connection screen projection mode often causes connection errors, needs to be set on the mobile device, and common users often do not know how to operate, so that the time-out conference is delayed, and the time cost is wasted. How to save the time for preparing the conference for the participants and reduce the connection errors during screen projection is a problem which is urgently needed to be solved at present.
Disclosure of Invention
The invention aims to provide a screen projection method, an auxiliary screen projection device and a storage medium, which can solve the problem that the original camera or microphone of a conference room cannot be used by screen projection in the prior art and also solve the problem of high error rate of direct-connection screen projection connection.
The purpose of the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a screen projection method, including the following steps:
the auxiliary screen projection device establishes connection with the data source equipment to acquire screen projection data of the data source equipment, and simultaneously acquires an audio signal;
the auxiliary screen projection device performs sound mixing elimination, noise reduction and automatic gain processing on the received audio signals;
and according to the selection of the user, sending the processed audio signal and the screen projection data to screen projection equipment for real-time screen projection, or sending the processed audio signal and the screen projection data to a storage module for storage and then carrying out cache screen projection.
Further, before the auxiliary screen projection device obtains the screen projection data of the data source equipment, the method further comprises the step of performing login verification on the data source equipment.
Further, the login verification method comprises the following steps: the method comprises the steps that a preset user name and a preset password are stored in a storage module of the auxiliary screen projection device, a login verification module compares the user name and the password input by a user with user data stored in the storage module, and if the user name and the password belong to the user data in the storage module, connection between the auxiliary screen projection device and data source equipment is established.
Furthermore, when the auxiliary screen projection device receives screen projection data of more than two data source devices at the same time, the screen projection quantity is set, and screen projection data of different data source devices are controlled to be projected by the screen projection devices in a split-screen mode.
Furthermore, the method also comprises the steps of capturing video data of the conference room by using the independent camera of the conference room and delivering the video data on the screen-projecting device.
Further, a first time period and a second time period are set, and when the auxiliary screen projecting device does not receive screen projecting data in the first time period or the auxiliary screen projecting device is disconnected with the screen projecting equipment for the second time period, the auxiliary screen projecting device enters a standby state.
Furthermore, the auxiliary screen projection device controls the output mode of the loudspeaker according to whether the omnidirectional microphone is called, and when the microphone is called, the current conference state is judged, and the loudspeaker is switched to the conference mode; otherwise, the loudspeaker is switched to the multimedia music mode.
In a second aspect, the present invention provides an auxiliary screen projection device, including:
the receiving module is used for receiving screen projection data of the data source equipment;
the sound acquisition module is used for acquiring audio data of the environment and the data source equipment;
the sound processing module is used for carrying out sound mixing elimination, noise reduction and automatic gain processing on the audio signals acquired by the sound acquisition module;
the storage module is used for storing screen projection data and the processed audio signal;
the transmitting module is used for forwarding the screen projection data received by the receiving module and the audio signal processed by the sound processing module in real time or forwarding the screen projection data and the audio signal stored in the storage module;
and the display control module controls the sending module to send data according to a real-time screen projection mode or a temporary storage buffer screen projection mode according to the screen projection mode selected by the user and the screen splitting quantity.
Furthermore, the auxiliary screen projection device further comprises a login verification module, and the login verification module is used for comparing the login information received by the receiving module with the preset login information stored in the storage module and determining whether the login information received by the receiving module is in the preset login information.
In a third aspect, the present invention provides a storage medium, in which a computer program is stored, and the computer program is executed to perform the above screen projection method.
According to the screen projecting method, the auxiliary screen projecting device and the storage medium, the auxiliary screen projecting device is connected between the mobile terminal and the screen projecting equipment, the auxiliary screen projecting device is in long connection with the screen projecting equipment such as an all-in-one machine under a normal condition, when the screen is projected, a user only needs to connect the mobile terminal such as a notebook computer and the like with the auxiliary screen projecting device, the auxiliary screen projecting device can automatically acquire picture and sound data of the mobile terminal, and the picture and sound data are sent to the screen projecting equipment for displaying after noise reduction processing. The auxiliary screen projection device can also be connected with equipment such as a camera of a conference room. The screen projection method, the auxiliary screen projection device and the storage medium provided by the invention upgrade the traditional conference room, are simple in connection, can call the independent camera in the conference room, and improve the conference experience and the conference efficiency of users.
Drawings
FIG. 1 is a diagram illustrating the steps of the screen projection method according to the present invention;
FIG. 2 is a schematic connection diagram of the auxiliary projection screen device according to the present invention;
fig. 3 is a schematic block diagram of the auxiliary screen projection device of the present invention.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The screen projection method comprises the following steps:
and step S1, the auxiliary screen projection device establishes connection with the data source equipment to acquire screen projection data of the data source equipment, and simultaneously, the auxiliary screen projection device acquires audio signals.
The data source equipment comprises mobile terminal equipment with small screens such as mobile phones and notebooks. The screen projection data includes audio data and image data.
According to the invention, the auxiliary screen projection device can be connected with the data source equipment through the data line, so that stable signal transmission can be ensured through the connection of the data line, and the signal transmission speed is high. The auxiliary screen projection device can also be provided with a Bluetooth module and is connected with the data source equipment through the Bluetooth module. The connection is established in a Bluetooth mode, so that the field wiring is reduced, and the mobile terminal can be conveniently moved after the connection is established. When the auxiliary screen projection device and the data source equipment transmit image data and audio data in a Bluetooth mode, 2 data source equipment can be connected at the same time, and screen projection software of the mobile terminal is required to be installed in the data source equipment such as a notebook computer. The auxiliary screen projection device can reserve the latest 8 paired data source devices for quick establishment next time. The auxiliary screen projection device is connected with the data source equipment through the data line and can transmit image data and audio data after connection is successful, and screen projection software of the mobile terminal does not need to be installed in the notebook computer. After the auxiliary screen projection device is connected with the notebook computer through a data line, screen projection software can be automatically installed at the computer end.
The auxiliary screen projection device is arranged in a meeting room and is normally connected with screen projection equipment such as an all-in-one machine and the like. And (4) the connection between the auxiliary screen projection device and the screen projection equipment is not necessarily disconnected. The auxiliary screen projection device is connected with the screen projection equipment in a wireless mode. The wireless modules are arranged in the auxiliary screen projecting device and the screen projecting equipment, and the connection between the auxiliary screen projecting device and the screen projecting equipment is established in a wireless network mode.
Preferably, before the auxiliary screen projection device acquires the screen projection data of the data source device, a step of login verification of the data source device is further included.
The auxiliary screen projection device is provided with a login verification module, the login verification module is provided with a user name and a password, after the auxiliary screen projection device is connected with the data source equipment, a login interface is displayed on the data source equipment, and after the user fills in the user name and the password, the login verification module performs identity verification on a login user.
The login verification method comprises the following steps: the storage module of the auxiliary screen projection device stores a preset user name and a preset password, the login verification module compares the user name and the password input by the user with user data stored in the storage module, if the user data belongs to the user data in the storage module, the auxiliary screen projection device is successfully connected with the data source equipment, and the auxiliary screen projection device starts to receive screen projection data of the data source equipment. The beneficial effects of adding the login verification step are as follows: can prevent to throw the screen and carry out the in-process of local meeting or teleconference, have another data source equipment and throw the screen device with supplementary under the condition of unwittingly and connected, throw the screen data because of this misconnection has interrupted normal meeting. After login verification is carried out, the condition of error connection cannot occur, and smooth proceeding of the conference can be ensured.
And a sound acquisition module of the auxiliary screen projection device acquires an audio signal.
And step S2, the auxiliary screen projection device performs sound mixing elimination, noise reduction and automatic gain processing on the received audio signal.
The sound receiving hardware equipment of the auxiliary screen projection device adopts an omnidirectional microphone, the omnidirectional microphone is a four-array microphone +5W loudspeaker, and the omnidirectional microphone has a 3A algorithm. The audio signal is collected by a sound acquisition module of the auxiliary screen projection device, and is subjected to audio preprocessing processes such as audio mixing elimination, noise reduction, automatic gain control and the like through a sound processing module, and is encoded by an audio encoder. Among them, the pretreatment process is commonly referred to as 3A, including the use of Acoustic Echo Cancellation (AEC), Automatic Gain Control (AGC), and Active Noise Control (ANC), which are also called Noise cancellation and Noise suppression.
The audio 3A processing sequence is different for three different application scenarios, for example, in WebRTC, audio data sequentially passes through AEC and NS (noise suppression) or NS and AECM (AECM is an algorithm specially created by WebRTC for the mobile side, and the calculation amount is low, and AEC is created for the PC). AEC is an echo cancellation algorithm. When one device plays sound and is reflected for multiple times in the space, the echo can be captured by the microphone again and collected into the auxiliary screen projection device. At this time, the input of the audio frequency has both echo reflected by the space and speaking sound of the local terminal, and if the voice processing module is lacked, it means that the speaker can always hear the echo of the voice during the conversation, which is a very poor experience. The AEC here functions to track the echo from the played reference signal and cancel the echo from the acquired signal, followed by a noise reduction process to remove the noise. The AECM is analyzed after the NS module by acquiring clear and noise data, and the AEC is analyzed before the NS module by acquiring noise data directly. After completing the AEC and NS processing, the audio data is subjected to AGC processing, which includes AAGC (analog domain automatic gain control) and DAGC (digital domain automatic gain control). The AAGC mainly functions to adjust an input signal through a collection volume setting interface of the system (mostly used for a PC terminal, and a mobile terminal generally has no system interface for inputting volume), for example, adjust parameters such as collection volume by using an API on Windows. The AAGC can bring significant quality optimization to the input audio data, such as improving the signal-to-noise ratio, avoiding input signal overflow, etc. However, due to the requirement of cross-platform, a multi-platform device-oriented framework needs to be constructed, different input volumes exist in different input platforms and devices, and the DAGC can adjust the signals to reach the desired size (amplitude or energy) as much as possible according to the tracking of the input signals, so that the excessive volume difference caused by the acquisition of different devices is avoided. And the Audio data after AGC processing can enter Audio Encode for encoding operation.
And step S3, sending the processed audio data and screen projection data to screen projection equipment for real-time screen projection according to the selection of a user, or sending the processed audio data and screen projection data to a storage module for storage and then performing cache screen projection.
The auxiliary screen projection device has a real-time screen projection mode and a cache screen projection mode. And the screen projection can be carried out in real time or cached according to the selection of the user.
The auxiliary screen projection device and the screen projection equipment transmit data in a wireless mode.
Furthermore, when the auxiliary screen projection device receives screen projection data of more than two data source devices at the same time, the screen projection quantity is set, and screen projection data of different data source devices are controlled to be projected by the screen projection devices in a split-screen mode.
Furthermore, the screen projection method further comprises the step of capturing video data of the conference room by using the independent camera of the conference room and projecting the video data on the screen projection equipment.
The independent camera of the conference room is connected with the auxiliary screen projecting device, video data of a conference participating site is captured by the independent camera and is projected on screen projecting equipment as another screen projecting data.
Further, the auxiliary screen projection device enters a standby state when the screen projection data are not received within a first set time period or the auxiliary screen projection device is disconnected with the screen projection equipment within a second set time period. The first setting time period and the second setting time period can be the same or different, and are set according to the needs of users. In the present invention, the first set time period and the second set time period take the same value, preferably 5 minutes. The setting of a particular time period should not be taken as a limitation of the present invention.
Furthermore, the auxiliary screen projection device controls the output mode of the loudspeaker according to whether the omnidirectional microphone is called or not, when the microphone is called, the current conference state is judged, the loudspeaker is switched to be in the conference mode, the voice is optimized in the conference mode, the suppression is carried out at the bass end, the middle tone is highlighted, the reduction degree is real, the voice is clear and clear, and the tooth tone, the throat tone and the turbid feeling are reduced; when the microphone is not called, the loudspeaker is switched to a multimedia music mode, the music mode emphasizes that bass is full and thick and has layers, the midrange is bright and clear, and high frequency is flexible.
The screen projection method can be used in scenes such as a local conference, a remote voice conference, a remote video conference and the like.
During a local meeting, the content on the notebook computer needs to be thrown to a large screen of a meeting room, so that people can see the content more conveniently. The notebook computer is connected with the auxiliary screen projection device, and if the notebook computer is in wired connection, the content of the screen of the notebook computer can be projected to the large screen of the all-in-one machine by one key without any setting of the notebook computer. During a remote voice conference, the notebook computer is projected to a large screen, and local conference participants can communicate with remote conference participants in a voice mode. Throw the screen in local needs, need local pickup, call microphone and the loudspeaker of supplementary screen device of throwing promptly, gather local meeting personnel's pronunciation to will long-range meeting personnel's pronunciation export. During the remote video conference, the notebook computer is projected to a large screen, local participants can communicate with remote participants in voice, and can also see each other. Independent cameras in a local conference room can be accessed, and a conference room scene can be launched in one key. The auxiliary screen projection device is in long connection with screen projection equipment such as an all-in-one machine under normal conditions, when the screen is projected, a user only needs to connect a mobile terminal such as a notebook computer and the like with the auxiliary screen projection device, the auxiliary screen projection device can automatically acquire picture and sound data of the mobile terminal, and the picture and sound data are sent to the screen projection equipment for display after noise reduction processing. The auxiliary screen projection device can also be connected with equipment such as a camera of a conference room. The screen projection method, the auxiliary screen projection device and the storage medium provided by the invention upgrade the traditional conference room, are simple in connection, can call an independent camera in the conference room, and improve the experience and efficiency of a conference.
The invention also provides an auxiliary screen projection device, which comprises:
the receiving module is used for receiving screen projection data of the data source equipment;
in the invention, the auxiliary screen projection device is provided with a Bluetooth module or is connected with data source equipment through a data line, and screen projection data are transmitted to the receiving module through the data line or transmitted to the receiving module through a Bluetooth mode.
The sound acquisition module is used for acquiring audio data of the environment and the data source equipment;
the sound processing module is used for carrying out sound mixing elimination, noise reduction and automatic gain processing on the audio signals acquired by the sound acquisition module;
the storage module is used for storing screen projection data and the processed audio signal;
the transmitting module is used for forwarding the screen projection data received by the receiving module and the audio signal processed by the sound processing module in real time or forwarding the screen projection data and the audio signal stored in the storage module;
the transmission of the present invention is wireless transmission. The auxiliary screen projection device is provided with a wireless module, screen projection equipment such as an all-in-one machine and the like is also provided with a wireless module, the auxiliary screen projection device is in wireless connection with the screen projection equipment, and screen projection data and audio signals are sent through a wireless network.
And the display control module controls the sending module to send data in a real-time screen projection mode or a temporary storage buffer screen projection mode according to the screen projection mode selected by the user and the screen division quantity.
Preferably, the auxiliary screen projection device further comprises a login verification module, which is used for comparing the login information received by the receiving module with preset login information stored in the storage module, and determining whether the login information received by the receiving module is in the preset login information. The login verification module is additionally arranged, so that the situation that another data source device is connected with the auxiliary screen projection device under the unknowing condition in the process of projecting a screen to carry out a local conference or a remote conference can be prevented, and normal conference screen projection data are interrupted due to the error connection. After login verification is carried out, the condition of error connection cannot occur, and smooth proceeding of the conference can be ensured.
The hardware configuration introduction of the auxiliary screen projection device of the invention comprises the following steps:
the auxiliary screen projection device disclosed by the invention is used for positioning a small and medium-sized conference room, and is matched with an intelligent large screen to optimize the local conference and remote conference experience. The auxiliary screen projection device has a one-key screen projection function, and can be connected with an all-in-one machine developed by the applicant to acquire the hot account password of the all-in-one machine after being in wired connection. The sound collection in the hardware device adopts 8 omnidirectional microphones with annularly arranged top surfaces. The microphone diameter is not less than 4cm, preferably 6cm, and the pick-up distance is 4 m and a half. The omni-directional microphone is preferably chosen to be back-ported (not bottom-ported) so that it is as close to the outside as possible, and if not high enough, the padding height is also a concern. Wired and wireless extension microphones are supported. The auxiliary screen projection device provided by the invention is provided with the lithium battery, can continuously work for more than 12 hours under the condition of no commercial power, has an overlong battery working time, and can meet the requirements of some emergency conferences under the condition of no commercial power.
A2-inch full-band cavity loudspeaker is adopted for sound playing in the hardware device, and human sound and music can be enhanced. The full-band cavity loudspeaker has two play modes: music mode: 150 Hz-16 kHz, conference mode: 150 Hz-7 kHz. The playback mode of the horn is determined according to whether the microphone is called. When the microphone is called, the current conference state is judged, and the playing mode of the loudspeaker is switched to be the conference mode; when the microphone is not called, the playing mode of the loudspeaker is switched to a multimedia music mode. The auxiliary screen projection device is provided with a WiFi module, and the WIFI module is responsible for outputting video pictures and audio output by mobile terminals such as a notebook computer and the like to screen projection equipment with a large screen such as an all-in-one machine and receiving camera and microphone data of the screen projection equipment with the large screen such as the all-in-one machine. Supplementary screen device of throwing takes classic bluetooth module, is responsible for wireless connection notebook computer, extension microphone and loudspeaker. And a female port of USB2.0 type A is also provided, so that after a full-function typeC interface of the notebook computer is occupied by the auxiliary screen projection device, the notebook computer can be expanded to an interface of the auxiliary screen projection device for inserting products such as a mouse, a USB flash disk and the like, and can be charged externally.
The invention also provides a storage medium, wherein a computer program is stored, and the screen projection method can be executed by running the computer program.
In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (10)
1. A screen projection method is characterized by comprising the following steps:
the auxiliary screen projection device establishes connection with the data source equipment to acquire screen projection data of the data source equipment, and simultaneously acquires an audio signal;
the auxiliary screen projection device performs sound mixing elimination, noise reduction and automatic gain processing on the received audio signals;
and according to the selection of the user, sending the processed audio signal and the screen projection data to screen projection equipment for real-time screen projection, or sending the processed audio signal and the screen projection data to a storage module for storage and then carrying out cache screen projection.
2. The screen projection method of claim 1, further comprising the step of performing login verification on the data source device before the auxiliary screen projection device acquires the screen projection data of the data source device.
3. The screen projection method of claim 2, wherein the login verification method comprises the following steps: the method comprises the steps that a preset user name and a preset password are stored in a storage module of the auxiliary screen projection device, a login verification module compares the user name and the password input by a user with user data stored in the storage module, and if the user name and the password belong to the user data in the storage module, connection between the auxiliary screen projection device and data source equipment is established.
4. The screen projection method according to claim 1 or 2, wherein when the auxiliary screen projection device receives screen projection data of more than two data source devices at the same time, the screen projection number is set, and the screen projection devices are controlled to project the screen projection data of different data source devices at the same time in a split screen manner.
5. The screen projection method according to claim 1 or 2, further comprising capturing video data of a conference room with a conference room independent camera and projecting on a screen projection device.
6. The screen projecting method according to claim 1 or 2, wherein a first time period and a second time period are set, and when the auxiliary screen projecting device does not receive screen projecting data within the first time period or the auxiliary screen projecting device is disconnected from the screen projecting equipment for the second time period, the auxiliary screen projecting device enters a standby state.
7. The screen projection method of claim 1 or 2, wherein the auxiliary screen projection device controls the output mode of the loudspeaker according to whether the omnidirectional microphone is called, and when the omnidirectional microphone is called, the auxiliary screen projection device judges that the microphone is in a conference state currently, and switches the loudspeaker to be in the conference mode; otherwise, the loudspeaker is switched to the multimedia music mode.
8. An auxiliary screen projection device, comprising:
the receiving module is used for receiving screen projection data of the data source equipment;
the sound acquisition module is used for acquiring audio data of the environment and the data source equipment;
the sound processing module is used for carrying out sound mixing elimination, noise reduction and automatic gain processing on the audio signals acquired by the sound acquisition module;
the storage module is used for storing screen projection data and the processed audio signal;
the transmitting module is used for forwarding the screen projection data received by the receiving module and the audio signal processed by the sound processing module in real time or forwarding the screen projection data and the audio signal stored in the storage module;
and the display control module controls the sending module to send data according to a real-time screen projection mode or a temporary storage buffer screen projection mode according to the screen projection mode selected by the user and the screen splitting quantity.
9. The auxiliary screen projection device as claimed in claim 8, further comprising a login verification module for comparing the login information received by the receiving module with preset login information stored in the storage module to determine whether the login information received by the receiving module is in the preset login information.
10. A storage medium in which a computer program is stored, characterized in that the computer program is executable to perform the screen projection method according to any one of claims 1 to 7.
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