CN111415635B - Large-screen display method, device, medium and electronic equipment - Google Patents
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- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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Abstract
The present disclosure provides a large screen display method, apparatus, medium, and electronic device, the method including: acquiring a display data stream, wherein the display data stream comprises a whole-body image data stream and a teaching content data stream; judging the type of the display data stream according to the identifier of the display data stream; when the display data stream is a whole-body image data stream, switching a display mode to vertical screen display, wherein the vertical screen display enables a whole-body image in the whole-body image data stream to be completely displayed on a large-screen display device; and when the display data stream is the teaching content data stream, switching the display mode to be horizontal screen display, wherein the horizontal screen display enables all the teaching content in the teaching content data stream to be displayed in a designated area of a large-screen display device. The vertical screen display teaching device can display the whole body image of a teaching teacher in a vertical screen mode, so that students can see the style of the teaching teacher in a harmonious manner, can also display teaching contents in a horizontal screen mode, and can automatically adjust the display mode according to the display contents.
Description
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a large screen display method, an apparatus, a medium, and an electronic device.
Background
With the spread of distance education, more and more education institutions are now developing distance education services. Most of the existing remote education service clients can only display teaching contents, such as PPT (Power Point) for teachers to give lessons or played videos, and students face single teaching contents, so that visual fatigue is easily caused, and the effect of listening to lessons is further influenced. Other teaching clients capable of realizing interaction between teachers and students often only can display the head portrait of a teacher in a lecture through a small window, and still cannot achieve the teaching effect of the teacher in class on site.
Disclosure of Invention
An object of the present disclosure is to provide a large-screen display method, apparatus, medium, and electronic device, which can solve one of the above-mentioned technical problems. The specific scheme is as follows:
according to a specific embodiment of the present disclosure, in a first aspect, the present disclosure provides a large screen display method, including:
acquiring a display data stream, wherein the display data stream comprises a whole-body image data stream and a teaching content data stream;
judging the type of the display data stream according to the identifier of the display data stream;
when the display data stream is a whole-body image data stream, switching a display mode to vertical screen display, wherein the vertical screen display enables a whole-body image in the whole-body image data stream to be completely displayed on a large-screen display device;
and when the display data stream is the teaching content data stream, switching the display mode to be horizontal screen display, wherein the horizontal screen display enables all the teaching content in the teaching content data stream to be displayed in a designated area of a large-screen display device.
Optionally, the determining the type of the display data stream according to the identifier of the display data stream includes:
acquiring a data link of the display data stream, and intercepting a type field in the data link;
comparing the type field with a white list;
and judging the type of the display data stream according to the comparison result.
Optionally, when the display data stream is a teaching content data stream, switching the display mode to be a horizontal screen display, where the horizontal screen display makes all the teaching content in the teaching content data stream displayed in a designated area of a large-screen display device, includes:
when the display data stream is a teaching content data stream, judging whether the display mode of the display data is 16: 9;
when the display mode of the display data is 16:9, switching the display mode to be horizontal screen display;
the instructional content is displayed laterally across the 1/3 area of the large screen display device in its entirety.
Optionally, when the display mode of the display data is 16:9, switching the display mode to be horizontal screen display; transversely displaying the teaching content in the 1/3 area of the large-screen display device in a whole manner, wherein the method comprises the following steps:
when the display mode of the display data is 16:9, switching the display mode to be horizontal screen display;
acquiring the previous screen display content, the current screen display content and the next screen display content of the teaching content;
and transversely displaying the previous screen display content, the current screen display content and the next screen display content in turn from top to bottom in an 1/3 area of the large-screen display device.
Optionally, the transversely displaying the previous screen display content, the current screen display content and the next screen display content in sequence from top to bottom in an 1/3 area of the large screen display device includes:
the former screen display content and the latter screen display content are transversely displayed in a top 1/3 area and a bottom 1/3 area of the large-screen display device in a gray scale mode respectively;
the current screen display content is displayed laterally in the form of brightness in the middle 1/3 area of the large screen display device.
Optionally, a display data stream is obtained, where the display data stream includes a whole body image data stream and a teaching content data stream, and the method includes:
the method comprises the steps of obtaining a whole body image data stream and a teaching content data stream through a first data channel and a second data channel respectively, wherein the whole body image data stream is obtained in real time through a remote monitoring device and is a dynamic data stream.
Optionally, the method further includes:
obtaining an audio data stream;
converting the audio data stream into Chinese and English character data streams in real time;
and synchronously displaying the Chinese and English character data streams at the bottom of a large-screen display device.
According to a second aspect, the present disclosure provides a large-screen display device including:
the system comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring a display data stream which comprises a whole body image data stream and a teaching content data stream;
the judging unit is used for judging the type of the display data stream according to the identifier of the display data stream;
the display device comprises a first switching unit, a second switching unit and a display unit, wherein the first switching unit is used for switching a display mode to be vertical screen display when the display data stream is a whole-body image data stream, and the vertical screen display enables a whole-body image in the whole-body image data stream to be completely displayed on a large-screen display device;
and the second switching unit is used for switching the display mode to be horizontal screen display when the display data stream is the teaching content data stream, and the horizontal screen display enables all the teaching contents in the teaching content data stream to be displayed in the designated area of the large-screen display device.
According to a third aspect, the present disclosure provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of any one of the above.
According to a fourth aspect thereof, the present disclosure provides an electronic device, comprising: one or more processors; storage means for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to carry out a method as claimed in any preceding claim.
Compared with the prior art, the scheme of the embodiment of the disclosure at least has the following beneficial effects: the present disclosure provides a large screen display method, an apparatus, a medium and an electronic device, which can display the whole body image of a lecturer on a large screen display device in real time, and since the large screen display device has a height and a width close to a real person, the image of the real person can be visually displayed in front of a student, so that the student can see the style of the lecturer in a sound and luxuriant manner.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty. In the drawings:
FIG. 1 shows a flow diagram of a large screen display method according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating the effect of a large-screen display device according to an embodiment of the disclosure;
FIG. 3 is a schematic diagram of a large-screen display device according to an embodiment of the disclosure;
fig. 4 shows an electronic device connection structure schematic according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure clearer, the present disclosure will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present disclosure, rather than all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the scope of protection of the present disclosure.
The terminology used in the embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in the disclosed embodiments and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe certain items, these certain items should not be limited to these terms. These terms are only used to distinguish one from another. For example, a first entity may also be referred to as a second entity, and similarly, a second entity may also be referred to as a first entity, without departing from the scope of embodiments of the present disclosure.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising a certain element" does not exclude the presence of other like elements in a commodity or device comprising the element.
Alternative embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
As shown in fig. 1, according to an embodiment of the present disclosure, the present disclosure provides a large-screen display method, where the large-screen display method is implemented by a large-screen display, the large-screen display is a display device with a certain size, for example, a large-screen display of a vertical screen is constructed, the large-screen display of the vertical screen can adopt the size of 1.5-3 meters high and 0.5-1.2 meters wide, for example, 2 meters high and 1 meter wide, and the large-screen display can completely display a whole-body image of a real person, and preferably displays a whole-body image of 1: 1. As shown in fig. 2, the large-screen display includes a large-screen display 1 and a large-screen display 2 that display a whole-body image of a person.
As an implementation manner, after the display device is turned on, the image of the remote lecture teacher is captured by the video capture device and then displayed by the display device, so that a 1:1 real display is achieved, and the image capture, transmission, playing and the like of the lecture teacher can be realized by the prior art, which is not described herein. Of course, the display screen can also be used for displaying the image of the teacher by 1:2 to 1:3 (the ratio of the size of the real portrait to the size of the displayed portrait), or displaying the image of the teacher by 2:1 to 3:1 (the ratio of the size of the real portrait to the size of the displayed portrait). The scale is not particularly limited, and the purpose is to display the whole body image of the teacher.
The large-screen display method specifically comprises the following steps:
step S102: and acquiring a display data stream, wherein the display data stream comprises a whole-body image data stream and a teaching content data stream.
Wherein, obtain the display data stream, the display data stream includes whole body image data stream and teaching content data stream, includes: the method comprises the steps of obtaining a whole body image data stream and a teaching content data stream through a first data channel and a second data channel respectively, wherein the whole body image data stream is obtained in real time through a remote monitoring device and is a dynamic data stream.
At the teacher end of remote education, hardware equipment such as a monitor and a camera can be arranged, so that the monitor or the camera can shoot an angle facing the teacher of the lecture, the whole-body image of the teacher of the lecture can be acquired in real time, the acquired whole-body image data of the teacher can be processed, such as encoding and decoding, encryption, decryption, compression and the like, and then the whole-body image data are sent to a large-screen display device to be correspondingly displayed.
On the other hand, the lecture content of the teacher, such as the PPT and the video file, can be displayed on the remote large-screen display device in a synchronous display mode, and since the data is static teaching data, the data is different from the data acquired by the video, and the data has the characteristics of small data flow and small data space occupied by a transmission channel.
The video acquisition data and the static teaching data can be respectively transmitted to the large-screen display device through different transmission channels, and the transmission mode is not described here.
Step S104: judging the type of the display data stream according to the identifier of the display data stream;
as an optional implementation manner, the determining the type of the display data stream according to the identifier of the display data stream includes: acquiring a data link of the display data stream, and intercepting a type field in the data link; comparing the type field with a white list; and judging the type of the display data stream according to the comparison result.
The data link comprises a data type field, a communication protocol, a data name, data content and the like, the data type field is extracted from the data link after the data link is obtained, for example, the data type is defined as A, B by self, the obtained data type field is inquired and matched with a pre-established white list, for example, the data type A, B corresponding to the white list is an image data stream, and the image data stream is sent to a corresponding large-screen display device through a corresponding channel.
Extracting data type fields from a data link, wherein the data types are customized to a, b and the like, inquiring and matching the obtained data type fields with a pre-established white list, and if the data types a and b corresponding to the white list are teaching content data, transmitting the teaching content data stream to a corresponding large-screen display device through a corresponding channel.
Step S106: and when the display data stream is the whole-body image data stream, switching the display mode to vertical screen display, wherein the vertical screen display enables the whole-body image in the whole-body image data stream to be completely displayed on a large-screen display device.
The whole-body image data comprises real-time whole-body images of teachers and teaching background images, wherein the real-time whole-body images are obtained by shooting teaching teachers in real time through a monitoring device or a camera device of a remote teaching end; the teaching background image can be replaced by the background stored in the database at any time after the background of the teaching teacher is acquired, for example, the background can be any scene such as sea, snow mountain, grassland and the like. Through the combination of the whole-body image and the background, students can feel the styles of lecturers with harmonious feelings after watching, particularly for some lecturers in different places, the problem of geographical limitation is solved, and any place in the world can listen to the lecture styles of the lecturers personally on the scene.
The teacher's whole body image is acquired, and after the teacher's whole body image is acquired and subjected to intermediate processing, the image is displayed, wherein the teacher's height is 1.9 m and the teacher's height is 1.5 m, for example, after the teacher's image data is acquired through a video acquisition end, the teacher's height and fat and thin are subjected to edge extraction, and then the extracted data is simulated to a display screen to be displayed in a real 1:1 mode.
Step S108: and when the display data stream is the teaching content data stream, switching the display mode to be horizontal screen display, wherein the horizontal screen display enables all the teaching content in the teaching content data stream to be displayed in a designated area of a large-screen display device. As shown in fig. 2.
As an optional implementation manner, when the display data stream is a teaching content data stream, switching the display manner to be a landscape screen display, and the landscape screen display enables all teaching content in the teaching content data stream to be displayed in a designated area of a large-screen display device, includes the following sub-steps:
step S108-1: and when the display data stream is the teaching content data stream, judging whether the display mode of the display data is 16: 9. 16:9 refers to the aspect ratio of the displayed content, and according to ergonomic studies, the visual field range of two human eyes is a length-width ratio of 16:9, 16:9 is the best display mode for displaying content.
Step S108-2: and when the display mode of the display data is 16:9, switching the display mode to be horizontal screen display. The display screen can automatically adjust the horizontal screen or vertical screen display according to the display content, and when the display content is judged to be 16:9, the display mode can be automatically switched to the horizontal screen display mode.
Step S108-3: the instructional content is displayed laterally across the 1/3 area of the large screen display device in its entirety. When the horizontal screen display is determined, the height size of the display area of the display device can be obtained, the height size is equally divided into 3 parts, independent control display of 3 areas is performed, and each area can display the determined display content of 16: 9. The display content can be controlled to be displayed in any one of the areas by the video display control unit.
As an optional implementation manner, when the display mode of the display data is 16:9, switching the display mode to horizontal screen display; transversely displaying the teaching contents in the 1/3 area of the large-screen display device completely, and comprising the following optional implementation steps:
step S108-3-1: and when the display mode of the display data is 16:9, switching the display mode to be horizontal screen display.
Step S108-3-2: and acquiring the previous screen display content, the current screen display content and the next screen display content of the teaching content. The display content may be displayed in pages, such as PPT, and 3 pages of PPT content, which are a continuous display of the display content, may be retrieved and displayed across the screen.
Step S108-3-3: and transversely displaying the previous screen display content, the current screen display content and the next screen display content in turn from top to bottom in an 1/3 area of the large-screen display device. The display mode is an optimal display mode, so that students can browse 3 PPTs in sequence from top to bottom, the display space of a large screen is fully utilized, and the display screen is full and meets the requirement of content presentation.
As an alternative embodiment, the transversely displaying the previous screen display content, the current screen display content and the next screen display content in turn from top to bottom in the 1/3 area of the large screen display device includes:
the former screen display content and the latter screen display content are transversely displayed in a top 1/3 area and a bottom 1/3 area of the large-screen display device in a gray scale mode respectively; second, the current screen display content is displayed laterally in the form of brightness in the middle 1/3 area of the large screen display device.
Through the adjustment of brightness, students can more clearly show what the content displayed currently is, the attention is focused on the bright PPT content, and the richness of the displayed content is increased through the brightness adjustment display.
Optionally, the method further comprises the following steps: obtaining an audio data stream; converting the audio data stream into Chinese and English character data streams in real time; and synchronously displaying the Chinese and English character data streams at the bottom of a large-screen display device.
The voice of the lecturer is acquired through the video acquisition device, then the voice is translated into English or characters of other languages through the translation module, Chinese subtitles are formed at the same time, and the Chinese subtitles and the English subtitles are displayed at the bottom or the top of the large-screen display device at the same time.
The large-screen display method can display the whole body image of a lecture teacher on the large-screen display device in real time, and the large-screen display device has the height and the width close to a real person, so that the image of the real person can be visually displayed in front of students, the students can see the lecture teacher's styles in a sound and luxuriant way, meanwhile, the display device can display the PPT and other teaching contents in a certain area of the large-screen display device according to the displayed content types, when at least two identical large display screens are matched for teaching, the perfect combination of the display contents and the teaching teacher can be realized, and the on-the-spot teaching effect is achieved.
According to a specific implementation manner of the present disclosure, as shown in fig. 3, this embodiment is adapted to the above embodiments, and is used to implement the method steps described in the above embodiments, and the explanation based on the same name and meaning is the same as that of the above embodiments, and has the same technical effect as that of the above embodiments, and is not repeated here. The large-screen display device provided by the present disclosure specifically includes: an acquisition unit 302, a determination unit 304, a first switching unit 306, and a second switching unit 308.
The acquisition unit 302: acquiring a display data stream, wherein the display data stream comprises a whole-body image data stream and a teaching content data stream;
optionally, a display data stream is obtained, where the display data stream includes a whole body image data stream and a teaching content data stream, and the method includes: the method comprises the steps of obtaining a whole body image data stream and a teaching content data stream through a first data channel and a second data channel respectively, wherein the whole body image data stream is obtained in real time through a remote monitoring device and is a dynamic data stream.
The judging unit 304: judging the type of the display data stream according to the identifier of the display data stream;
optionally, the determining the type of the display data stream according to the identifier of the display data stream includes: acquiring a data link of the display data stream, and intercepting a type field in the data link; comparing the type field with a white list; and judging the type of the display data stream according to the comparison result.
The first switching unit 306: when the display data stream is a whole-body image data stream, switching a display mode to vertical screen display, wherein the vertical screen display enables a whole-body image in the whole-body image data stream to be completely displayed on a large-screen display device;
the second switching unit 308: and when the display data stream is the teaching content data stream, switching the display mode to be horizontal screen display, wherein the horizontal screen display enables all the teaching content in the teaching content data stream to be displayed in a designated area of a large-screen display device.
Optionally, when the display data stream is a teaching content data stream, switching the display mode to be a horizontal screen display, where the horizontal screen display makes all the teaching content in the teaching content data stream displayed in a designated area of a large-screen display device, includes:
when the display data stream is a teaching content data stream, judging whether the display mode of the display data is 16: 9; when the display mode of the display data is 16:9, switching the display mode to be horizontal screen display; the instructional content is displayed laterally across the 1/3 area of the large screen display device in its entirety.
Optionally, when the display mode of the display data is 16:9, switching the display mode to be horizontal screen display; transversely displaying the teaching content in the 1/3 area of the large-screen display device in a whole manner, wherein the method comprises the following steps: when the display mode of the display data is 16:9, switching the display mode to be horizontal screen display; acquiring the previous screen display content, the current screen display content and the next screen display content of the teaching content; and transversely displaying the previous screen display content, the current screen display content and the next screen display content in turn from top to bottom in an 1/3 area of the large-screen display device.
Optionally, the transversely displaying the previous screen display content, the current screen display content and the next screen display content in sequence from top to bottom in an 1/3 area of the large screen display device includes: the former screen display content and the latter screen display content are transversely displayed in a top 1/3 area and a bottom 1/3 area of the large-screen display device in a gray scale mode respectively; the current screen display content is displayed laterally in the form of brightness in the middle 1/3 area of the large screen display device.
Optionally, a display unit (not shown) is further included: obtaining an audio data stream; converting the audio data stream into Chinese and English character data streams in real time; and synchronously displaying the Chinese and English character data streams at the bottom of a large-screen display device.
The utility model discloses a through providing a large-screen display device, can be with the real-time display in large-screen display device of teacher's whole body image, because large-screen display device has the height and the width that are close to the real person, consequently, can be vivid show the image of real person in the presence of the student, make the student can the audio and visual moral style of seeing the teacher of lecture, and simultaneously, display device also can be according to the content type that shows, show some region in large-screen display device with teaching contents such as PPT, when the cooperation is at least two the same demonstration large-screens when teaching, can realize the perfect combination of display contents and teaching mr, reach the teaching effect on the spot.
As shown in fig. 4, the present embodiment provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the one processor to cause the at least one processor to perform the method steps of the above embodiments.
The disclosed embodiments provide a non-volatile computer storage medium having stored thereon computer-executable instructions that may perform the method steps as described in the embodiments above.
Referring now to FIG. 4, shown is a schematic diagram of an electronic device suitable for use in implementing embodiments of the present disclosure. The terminal device in the embodiments of the present disclosure may include, but is not limited to, a mobile terminal such as a mobile phone, a notebook computer, a digital broadcast receiver, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a vehicle terminal (e.g., a car navigation terminal), and the like, and a stationary terminal such as a digital TV, a desktop computer, and the like. The electronic device shown in fig. 4 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present disclosure.
As shown in fig. 4, the electronic device may include a processing means (e.g., a central processing unit, a graphics processor, etc.) 401 that may perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM)402 or a program loaded from a storage means 408 into a Random Access Memory (RAM) 403. In the RAM 403, various programs and data necessary for the operation of the electronic apparatus 400 are also stored. The processing device 401, the ROM 402, and the RAM 403 are connected to each other via a bus 405. An input/output (I/O) interface 405 is also connected to bus 405.
Generally, the following devices may be connected to the I/O interface 405: input devices 406 including, for example, a touch screen, touch pad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; output devices 405 including, for example, a Liquid Crystal Display (LCD), speakers, vibrators, or the like; storage 408 including, for example, tape, hard disk, etc.; and a communication device 405. The communication means 405 may allow the electronic device to communicate wirelessly or by wire with other devices to exchange data. While fig. 4 illustrates an electronic device having various means, it is to be understood that not all illustrated means are required to be implemented or provided. More or fewer devices may alternatively be implemented or provided.
In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication device 405, or may be installed from the storage device 408, or may be installed from the ROM 402. The computer program performs the above-described functions defined in the methods of the embodiments of the present disclosure when executed by the processing device 401.
It should be noted that the computer readable medium in the present disclosure can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer readable signal medium may comprise a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.
The computer readable medium may be embodied in the electronic device; or may exist separately without being assembled into the electronic device.
Computer program code for carrying out operations for aspects of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present disclosure may be implemented by software or hardware. Where the name of an element does not in some cases constitute a limitation on the element itself.
Claims (9)
1. A large screen display method, comprising:
acquiring a display data stream, wherein the display data stream comprises a whole-body image data stream and a teaching content data stream, and the whole-body image data comprises a real-time whole-body image and a replaceable teaching background image;
judging the type of the display data stream according to the identifier of the display data stream;
when the display data stream is a whole-body image data stream, switching a display mode to vertical screen display, wherein the vertical screen display enables a whole-body image in the whole-body image data stream to be completely displayed on a large-screen display device;
when the display data stream is a teaching content data stream, switching the display mode to be horizontal screen display, wherein the horizontal screen display enables all teaching contents in the teaching content data stream to be displayed in a designated area of a large-screen display device;
the determining the type of the display data stream according to the identifier of the display data stream includes:
acquiring a data link of the display data stream, and intercepting a custom type field in the data link;
comparing the custom type field with a white list;
and judging the type of the display data stream according to the comparison result.
2. The method of claim 1, wherein switching the display mode to a landscape display when the display data stream is a tutorial content data stream, the landscape display causing the tutorial content in the tutorial content data stream to be displayed in its entirety in a designated area of a large-screen display device comprises:
when the display data stream is a teaching content data stream, judging whether the display mode of the display data is 16: 9;
when the display mode of the display data is 16:9, switching the display mode to be horizontal screen display;
the instructional content is displayed laterally across the 1/3 area of the large screen display device in its entirety.
3. The method according to claim 2, wherein when the display mode of the display data is 16:9, the display mode is switched to landscape display; transversely displaying the teaching content in the 1/3 area of the large-screen display device in a whole manner, wherein the method comprises the following steps:
when the display mode of the display data is 16:9, switching the display mode to be horizontal screen display;
acquiring the previous screen display content, the current screen display content and the next screen display content of the teaching content;
and transversely displaying the previous screen display content, the current screen display content and the next screen display content in turn from top to bottom in an 1/3 area of the large-screen display device.
4. The method of claim 3, wherein: the transversely displaying the previous screen display content, the current screen display content and the next screen display content in turn from top to bottom in an 1/3 area of the large screen display device comprises:
the former screen display content and the latter screen display content are transversely displayed in a top 1/3 area and a bottom 1/3 area of the large-screen display device in a gray scale mode respectively;
the current screen display content is displayed laterally in the form of brightness in the middle 1/3 area of the large screen display device.
5. The method of claim 1, wherein: acquiring a display data stream, wherein the display data stream comprises a whole-body image data stream and a teaching content data stream, and the method comprises the following steps:
the method comprises the steps of obtaining a whole body image data stream and a teaching content data stream through a first data channel and a second data channel respectively, wherein the whole body image data stream is obtained in real time through a remote monitoring device and is a dynamic data stream.
6. The method of claim 5, further comprising:
obtaining an audio data stream;
converting the audio data stream into Chinese and English character data streams in real time;
and synchronously displaying the Chinese and English character data streams at the bottom of a large-screen display device.
7. A large-screen display device characterized by comprising:
the system comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring a display data stream, the display data stream comprises a whole-body image data stream and a teaching content data stream, and the whole-body image data comprises a real-time whole-body image and a replaceable teaching background image;
the judging unit is used for judging the type of the display data stream according to the identifier of the display data stream; the data link is also used for acquiring the display data stream and intercepting the custom type field in the data link; comparing the custom type field with a white list; judging the type of the display data stream according to the comparison result;
the display device comprises a first switching unit, a second switching unit and a display unit, wherein the first switching unit is used for switching a display mode to be vertical screen display when the display data stream is a whole-body image data stream, and the vertical screen display enables a whole-body image in the whole-body image data stream to be completely displayed on a large-screen display device;
and the second switching unit is used for switching the display mode to be horizontal screen display when the display data stream is the teaching content data stream, and the horizontal screen display enables all the teaching contents in the teaching content data stream to be displayed in the designated area of the large-screen display device.
8. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 1 to 6.
9. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to carry out the method of any one of claims 1 to 6.
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| US7663645B1 (en) * | 2007-02-20 | 2010-02-16 | Masao Okamoto | Image display device |
| JP5132629B2 (en) * | 2009-05-11 | 2013-01-30 | ソニーモバイルコミュニケーションズ， エービー | Information terminal, information presentation method of information terminal, and information presentation program |
| CN102572417B (en) * | 2010-12-17 | 2015-04-22 | 华为终端有限公司 | Method and device for sending and receiving video information |
| JP5903835B2 (en) * | 2011-04-28 | 2016-04-13 | 株式会社リコー | Transmission terminal, image display control method, image display control program, recording medium, and transmission system |
| CN103179367B (en) * | 2011-12-20 | 2016-08-17 | 联想(北京)有限公司 | Display and video data handling procedure |
| CN103365557A (en) * | 2012-04-01 | 2013-10-23 | 珠海金山办公软件有限公司 | Method and system for checking PowerPoint by mobile device |
| JP7073238B2 (en) * | 2018-05-07 | 2022-05-23 | アップル インコーポレイテッド | Creative camera |
| CN209248799U (en) * | 2018-12-19 | 2019-08-13 | 南京云起信息科技有限公司 | Display screen is used in a kind of teaching |
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