CN112579016A - Courseware annotating method, system, equipment and storage medium - Google Patents
Courseware annotating method, system, equipment and storage medium Download PDFInfo
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- G—PHYSICS
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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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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Abstract
The embodiment of the invention discloses a courseware annotating method, a courseware annotating system, courseware annotating equipment and a storage medium, wherein the method comprises the following steps: the main display controller receives an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware; the main display controller receives annotation operation, generates annotation information aiming at the courseware on the external video signal and obtains sub-video signals; the main display controller controls the main display equipment to play the sub-video signal; the main display controller transmits the sub video signal and the enabling signal to the signal switcher to control the signal switcher to transmit the sub video signal to the auxiliary display controller, and the auxiliary display controller is used for controlling the auxiliary display equipment to play the sub video signal. The main display device and the auxiliary display device can synchronously add annotations to courseware, and flexibility is strong.
Description
Technical Field
The embodiment of the invention relates to the technology of education, in particular to a courseware annotating method, a courseware annotating system, courseware annotating equipment and a storage medium.
Background
In some classrooms, a machine is used as a multimedia device in conjunction with a blackboard for teaching.
However, one machine has a limited screen size, and in a scene where a larger screen is required to display teaching contents, some classrooms use two machines placed side by side to extend the display area.
The two machines are only spliced together physically, the two machines still work independently respectively, courseware is displayed independently and remarked independently, when other courseware is connected externally, the two machines are required to be connected with different electronic equipment independently respectively, courseware is provided by the electronic equipment, and therefore the courseware is required to be remarked in different machines, and operation is complex.
Disclosure of Invention
The embodiment of the invention provides a courseware annotating method, a courseware annotating system, courseware annotating equipment and a storage medium, and aims to solve the problem that two machines are respectively and independently connected with different electronic equipment to display courseware and annotate courseware.
In a first aspect, an embodiment of the present invention provides a courseware annotating method, where a main display device is connected to an electronic device through a sub-display device, and a controller, a main display controller, and a signal switcher are disposed in the main display device, the signal switcher is connected to the controller and the controller, and the sub-display controller is disposed in the sub-display device, where the method includes:
the main display controller receives an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware;
the main display controller receives annotation operation, generates annotation information aiming at the courseware on the external video signal and obtains sub-video signals;
the main display controller controls the main display equipment to play the sub-video signal;
the main display controller transmits the sub video signal and the enabling signal to the signal switcher to control the signal switcher to transmit the sub video signal to the auxiliary display controller, and the auxiliary display controller is used for controlling the auxiliary display equipment to play the sub video signal.
In a second aspect, an embodiment of the present invention further provides a main display device, where the main display device is connected to an electronic device connected to a pair of display devices, the main display device is provided with a controller, a main display controller and a signal switcher, the signal switcher is connected to the controller and the controller, and the pair of display devices is provided with a pair of display controllers, where the main display controller is configured to:
receiving an external video signal transmitted by the electronic equipment, wherein the external video signal is used for displaying courseware;
receiving annotation operation, and generating annotation information aiming at the courseware on the external video signal to obtain sub-video signals;
controlling the main display device to play the sub video signal;
and transmitting the sub video signal and the enabling signal to the signal switcher so as to control the signal switcher to transmit the sub video signal to the auxiliary display controller, wherein the auxiliary display controller is used for controlling the auxiliary display equipment to play the sub video signal.
In a third aspect, an embodiment of the present invention further provides a courseware annotating system, where the system includes a main display device and an auxiliary display device that are connected, the main display device is connected to an electronic device, the main display device is provided with a controller, a main display controller and a signal switcher, the signal switcher is respectively connected to the controller and the main display controller, and the auxiliary display device is provided with an auxiliary display controller;
the main display controller is used for receiving an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware;
receiving annotation operation, and generating annotation information aiming at the courseware on the external video signal to obtain sub-video signals;
controlling the main display device to play the sub video signal;
transmitting the sub video signal and an enable signal to the signal switcher so as to control the signal switcher to transmit the sub video signal to the secondary display controller;
and the auxiliary display controller is used for controlling the auxiliary display equipment to play the sub-video signal.
In a fourth aspect, an embodiment of the present invention further provides a computer device, where the computer device includes:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the method of annotating a courseware as described in the first aspect.
In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is implemented, when executed by a processor, to implement the method for annotating a courseware according to the first aspect.
In this embodiment, the main display controller receives an external video signal transmitted by the electronic device, the external video signal is used for displaying courseware, the main display controller generates a component video signal based on the external video signal, on one hand, the main display controller controls the main display device to play the component video signal, on the other hand, the main display controller transmits the component video signal and the enable signal to the signal switcher to control the signal switcher to transmit the component video signal to the auxiliary display controller, the auxiliary display controller is used for controlling the auxiliary display device to play the component video signal, the main display device and the auxiliary display device are coordinated to play the component video signal by the main display controller, one electronic device is connected, two devices do not need to be respectively and independently connected to different electronic devices, the simplicity of operation is greatly improved, and the main display controller and the auxiliary display controller do not need to frequently communicate with courseware, so that the simplicity of operation is greatly improved, the courseware can be displayed on the main display device and the auxiliary display device by displaying the same path of branch video signals, so that the real-time property of the courseware displayed by the main display device and the auxiliary display device is ensured, and the time delay of displaying the courseware is reduced.
In addition, the main display controller receives annotation operation, displays annotation information aiming at the courseware on the external video signal, and accordingly generates sub video signals, the main display device and the auxiliary display device can add annotation to the courseware synchronously, flexibility is high, the annotation information is displayed through the video signals, the display device can display the annotation information by displaying the sub video signals, the annotation information does not need to be generated, the load of the auxiliary display device can be reduced, and in addition, due to the fact that the time delay of displaying the courseware is reduced, the time delay of annotating the courseware can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of a main display device and an auxiliary display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a signal switch according to an embodiment of the present invention;
fig. 3 is a flowchart of a courseware annotating method according to an embodiment of the present invention;
fig. 4 is a flowchart of a courseware annotating method according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a main display device according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a courseware annotating system according to a fourth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a main display device and an auxiliary display device according to an embodiment of the present invention.
In the present embodiment, the main display device 10 has a data port, the sub display device 20 has a data port, and a data line is accessible between the data port of the main display device 10 and the data port of the sub display device 20, so as to connect the main display device 10 and the sub display device 20.
The data port of the primary display device 10 and the data port of the secondary display device 20 may be set with various types of pins such as a video pin, a data pin, a network pin, etc. according to service requirements.
In which, the video pins may be used to transmit video signals, and with an HDMI (High Definition Multimedia Interface) signal as an example of a video signal, a pair of video pins may be used to transmit an HDMI clock signal, a pair of video signals may be used to transmit an HDMI red signal, a pair of video signals may be used to transmit an HDMI green signal, and a pair of video signals may be used to transmit an HDMI blue signal.
The data pins may be used to transmit Serial signals, such as USB (Universal Serial BUS) 3.0 signals, USB2.0 signals, including signals of camera, MIC (microphone), TOUCH up (TOUCH operation), and the like.
Network pins may be used to transmit network signals, such as gigabit network signals, for network communications.
In general, as shown in fig. 1, the main display device 10 has a screen (not shown), a controller 110, a main display controller 120, a signal switch 130, and the like.
The controller 10 belongs to a higher performance computing module.
For example, the controller 10 may be an Android module, that is, an Android system may be installed, and components such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a RAM (random access Memory), a ROM (Read-Only Memory), and the like are configured, for example, for the Android7.0 version, the CPU is a dual-core a72 and a quad-core a53, the GPU is a Mali T860, the RAM is 4GB, the ROM is 32GB, and the like.
For another example, the controller 10 may be a PC (personal computer) module configured with components such as a CPU, a GPU, a memory, and a hard disk, for example, for a plug-in Intel Core series modular computer, the CPU is Intel Core i5/i7, the GPU is kernel HD Graphics, the memory is DDR 48G/16G, and the hard disk is 128G/256G.
The main Display controller 120 belongs to Display Controllers (Display Controllers), and has a low operation performance, such as 811 SOC (System on Chip), and is responsible for receiving video signals from a serial port of a computer, placing the video signals into a frame memory, and generating serial Display data and a scanning control timing sequence required by a screen in a partition driving manner.
The signal switch 130 belongs to a switch (switch), and is capable of receiving at least two video signals, which may be HDMI signals, and outputting one of the video signals.
Referring to fig. 2, a schematic structural diagram of a signal switch according to an embodiment of the present invention is shown.
For the main display device shown in fig. 1, as shown in fig. 2, the signal switcher 130 has a first video input interface 133, a second video input interface 134, a control interface 132, and a video output interface 131.
The first video input interface 133 is connected to the controller 110 and can receive a video signal transmitted by the controller 110.
The second video input interface 134 is connected to the main display controller 120 and can receive the video signal transmitted by the main display controller 120.
The control interface 132 is connected to the main display controller 120 and can receive an enable signal transmitted by the main display controller 120.
The video output interface 131 may expose the housing of the main display device 10, serve as a pin in the data port, connect with the sub display device 20, and output a corresponding video signal to the sub display device 20 according to an enable signal.
For example, when the main display 120 transmits a high-level signal as an enable signal to the signal switch 130, the signal switch 130 outputs a video signal transmitted by the controller 110.
When the master 120 transmits the low-level signal to the signal switch 130 as an enable signal, the signal switch 130 outputs the video signal transmitted by the master 120.
The video output interface 131 may expose the housing of the main display device 10, serve as a pin in the data port, connect with the sub display device 20, and output a corresponding video signal to the sub display device 20 according to an enable signal.
For example, when the main display 120 transmits a signal of a first level as an enable signal to the signal switch 130, the signal switch 130 outputs a video signal transmitted by the controller 110.
When the master 120 transmits the signal of the second level as an enable signal to the signal switch 130, the signal switch 130 outputs the video signal transmitted by the master 120.
When the main display 120 transmits the signal of the third level as an enable signal to the signal switch 130, the signal switch 130 outputs the video signal transmitted by the signal distributor 140.
Wherein the first level is higher than the second level, and the second level is higher than the third level.
The signal distributor 140 belongs to a distributor, and is configured to receive a video signal, which may be an HDMI signal, and project the video signal to at least two video signals.
As shown in fig. 1, the sub display device 20 has a screen (not shown), a sub display controller 210.
The sub Display controller 210 belongs to Display Controllers (Display Controllers), has low operation performance, such as 811 SOC, and is responsible for receiving video signals from a serial port of a computer, placing the video signals into a frame memory, and generating serial Display data and scanning control timing sequence required by a screen in a partition driving manner.
The intelligent interactive flat panel is taken as an example of a main display device and an auxiliary display device, a hardware part of the intelligent interactive flat panel is composed of a display module, an intelligent processing system (including display controllers (such as a main display controller and an auxiliary display controller), or a controller and a display controller (such as a main display controller and an auxiliary display controller)), and the like, and the display module is combined together by an integral structural part and is supported by a special software system, wherein the display module comprises a display screen and a backlight assembly, and the display screen comprises a transparent electric conduction layer, a liquid crystal layer and the like.
The display screen, in the embodiments of the present specification, refers to a touch screen, and a touch panel, and is an inductive liquid crystal display device, when a graphical button on the screen is touched, the tactile feedback system on the screen can drive various connection devices according to a pre-programmed program, so as to replace a mechanical button panel, and create a vivid video effect by using a liquid crystal display screen. Touch screens are distinguished from technical principles and can be divided into five basic categories; a vector pressure sensing technology touch screen, a resistance technology touch screen, a capacitance technology touch screen, an infrared technology touch screen, and a surface acoustic wave technology touch screen. According to the working principle of the touch screen and the medium for transmitting information, the touch screen can be divided into four categories: resistive, capacitive, infrared, and surface acoustic wave.
When a user touches the screen with a finger or a pen, the point coordinates are positioned, so that the control of the intelligent processing system is realized, and then different functional applications are realized along with the built-in software of the intelligent processing system.
The screen and the large screen mentioned in the embodiment of the invention both refer to the display screen of the intelligent interactive flat panel; the intelligent interaction panel displays data such as a certain interface and annotation information, and the data refers to the data such as the interface and the annotation information displayed on a display screen of the intelligent interaction panel.
Example one
Fig. 3 is a flowchart of a courseware annotating method according to an embodiment of the present invention, where the embodiment is applicable to a case where a main display controller controls a main display device and an auxiliary display device to display and annotate courseware of an electronic device, and the method may be executed by the main display device and the auxiliary display device, where the main display device is connected to the auxiliary display device, and the main display device and the auxiliary display device may be implemented by software and/or hardware, where the main display device is provided with a controller, a main display controller and a signal switcher, the signal switcher is respectively connected to the controller and the controller, and the auxiliary display device is provided with an auxiliary display controller, and the method specifically includes the following steps:
s301, the main display controller receives an external video signal transmitted by the electronic equipment.
In this embodiment, the main display controller is connected to an electronic device, such as a personal computer, a notebook computer, or the like, the electronic device has a courseware, an application adapted to the format of the courseware is called, the courseware is opened, and at this time, the courseware is displayed on a desktop, and desktop data is converted into a video signal, such as an HDMI signal, so as to generate an external video signal, i.e., the external video signal is used for displaying the courseware.
The courseware may be a course Document, which is created according to the teaching requirement through links such as teaching target determination, teaching content and task analysis, teaching activity structure and interface design, for example, PPT (PowerPoint, presentation), word (word processor application), PDF (Portable Document Format), txt (text Document), seewo (wish), and the like.
In one example, the courseware includes a preparation phase, an activity phase, and a summary phase as shown.
The preparation phase is a phase for preparing activities such as interesting classification (competition mode), grouping competition, and misjudgment.
In the preparation phase, parameters such as the type of activity, difficulty, number of participating users, time, etc. may be set.
For activities such as interesting classification (competition mode), grouping competition, right and wrong judgment and the like, if a start control is clicked, the activity can be expanded and the activity stage is entered.
For other activities, the activity phase is entered after entering the activity page or reset of the courseware.
In the activity phase, a control for selecting elements in the lecture listening terminal is activated to be in an operable state, at this time, the lecture listening terminal can operate the elements related to the activity, for example, in the activity of classifying "region" and "country", the card "Beijing", "New York", "USA" and "China" in the activity is dragged, the elements for controlling the activity (such as controls for pausing, continuing, resetting and the like) and the elements unrelated to the activity (such as shape and thinking guide diagram) can be operated.
In the summary phase, the results of the activity, such as scores, answers, etc., may be displayed, and in this phase, the lecture terminal may click on controls for resetting or viewing the answers.
In one case, the main display device and the electronic device are connected by a wire.
Furthermore, the main display device is provided with a data port, the electronic device is also provided with a data port, and a data line can be accessed between the data port of the main display device and the data port of the electronic device, so that the electronic device can be accessed to the data port.
The data port of the main display device and the data port of the electronic device can be provided with various types of pins such as video pins, data pins, network pins and the like according to business requirements.
The video pins may be used to transmit video signals, and the HDMI signal is taken as an example of a video signal, and a pair of video pins may be used to transmit an HDMI clock signal, a pair of video signals may be used to transmit an HDMI red signal, a pair of video signals may be used to transmit an HDMI green signal, and a pair of video signals may be used to transmit an HDMI blue signal.
The data pins may be used to transmit serial signals, such as USB3.0 signals, USB2.0 signals, including signals of camera, MIC (microphone), TOUCH, etc.
Network pins may be used to transmit network signals, such as gigabit network signals, for network communications.
In another case, the electronic device has a data port, a screen transfer device is connected to the data port, and the main display device is wirelessly connected to the screen transfer device.
Further, the touch screen device includes, but is not limited to, a form of USB Dongle (USB Dongle), and the like, and includes, but is not limited to, a transmission interface, a wireless communication chip, an input unit, an output unit, a memory, a processor, and the like.
The transmission interface is an interface for taking the screen transmission equipment as an external device and accessing other equipment (such as electronic equipment). For example, USB interfaces (including but not limited to Type A, Type B, Type C), and the like.
The wireless communication chip can be used for wireless connection, including but not limited to a Wi-Fi chip, a bluetooth chip, etc., wherein the Wi-Fi chip can apply a 2.4G band, a 5G band, etc., the wireless communication chip belongs to a short-distance wireless transmission technology, after the screen transmission device is paired with the main display device, a wireless connection can be established with the main display device through the wireless communication chip, the screen transmission device can receive data (e.g., touch data, etc.) from the main display device through the wireless connection, and input data (e.g., screen data, audio data, etc.) into the main display device.
The pairing may be performed by authenticating the main display device with the screen transmission device, and writing information of the wireless access point of the main display device into the screen transmission device.
The input unit may be used to generate key signal inputs related to user settings and function control. Specifically, the input unit may include one or more of function keys (e.g., a control for controlling to start touch-up, a control for controlling to pause touch-up, a control for controlling to stop touch-up), a touch panel, a joystick, and the like.
The output unit may be used to output the status of the screen, for example, screen being transmitted, screen being paused, screen not being transmitted, etc., and specifically, the output unit may include an indicator light, etc.
The memory may be used to store software programs as well as various data. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an application program (e.g., pairing, transmitting screen data, audio data, touch data, etc.) required for at least one function, and the like; the storage data area may store data (such as pairing data, operation identification bits, etc.) created according to the use of the screen, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The Processor is a control center of the screen transmission device, and includes but is not limited to an MPU (Micro Processor Unit, microprocessor), and connects various parts of the entire screen transmission device by using various interfaces and lines, and performs various functions and processes of the screen transmission device by running or executing software programs and/or modules stored in the memory and calling data stored in the memory, thereby performing overall monitoring of the screen transmission device.
The screen transmission client side and the screen transmission server side follow a screen transmission protocol, and screen transmission operation is executed between the electronic equipment and the main display equipment through the screen transmission equipment.
In this embodiment, the electronic device transmits the external video signal thereof to the main display device, and the main display controller receives the external video signal.
S302, the main display controller receives annotation operation, generates annotation information aiming at the courseware on the external video signal, and obtains sub video signals.
In this embodiment, after receiving the external video signal, the master display controller may process the external video signal according to a predetermined protocol, for example, compress the external video signal to a uniform resolution, clip, add a watermark, add annotation information, and so on, thereby generating the sub-video signal.
If the main display device and the auxiliary display device enter the annotation mode, annotation operation can be received, and annotation information is generated on the external video signal aiming at the courseware, so that the sub-video signal is generated.
In one way of entering the annotation mode, the primary display device has a primary operating region and a non-primary operating region.
The main operation area is an area designated in a UI (User Interface) of the main display device, such as a sidebar, and may be used to trigger an operation designated in the main display device, such as adding annotation information.
The non-main operation area is an area except the main operation area in the UI of the main display device and can be used for operating courseware in a non-annotating mode.
In this manner, a primary annotation control is displayed in the primary operation area, the primary display-controller receives a touch operation that acts on the primary annotation control, and the primary display-controller enters an annotation mode in response to the touch operation, and sends an annotation notification to the secondary display-controller to notify the secondary display-controller of entering the annotation mode.
In another way of entering the annotation mode, the secondary display device has a secondary operation area and a non-secondary operation area.
The secondary operation area is an area designated in the UI of the secondary display device, such as a sidebar, and can be used for triggering operations designated in the primary display device, such as adding annotation information.
The non-auxiliary operation area is an area except the auxiliary operation area in the UI of the auxiliary display equipment and can be used for operating courseware in a non-annotation mode.
In this way, a secondary annotation control is displayed in the secondary operation area, the primary display controller receives an annotation notification sent by the secondary display controller when entering the annotation mode, and the primary display controller enters the annotation mode in response to the annotation notification.
And the auxiliary display controller enters the annotation mode when receiving the touch operation acted on the auxiliary annotation control.
Of course, the above manner of entering the annotation mode is only an example, and when the embodiment is implemented, other manners of entering the annotation mode may be set according to actual situations, which is not limited in this embodiment. In addition, besides the above manner of entering the annotation mode, a person skilled in the art may also adopt other manners of entering the annotation mode according to actual needs, which is not limited in this embodiment.
And S303, the main display controller controls the main display equipment to play the sub-video signal.
For the sub video signal, the main display controller can directly control the main display device to play.
Further, the main display controller puts the sub-video signals into a frame memory, generates serial display data and a scanning control time sequence required by a screen aiming at the sub-video signals in a partition driving mode, and the screen plays the sub-video signals according to the serial display data and the scanning control time sequence, so that courseware and postnotes thereof are displayed on the screen.
S304, the main display controller transmits the sub video signal and the enabling signal to the signal switcher so as to control the signal switcher to transmit the sub video signal to the auxiliary display controller.
In this embodiment, the main display controller outputs the sub-video signal to the signal switch, and at the same time, the main display controller generates the enable signal and transmits the enable signal to the signal switch.
The signal switcher responds to the enabling signal and outputs the sub video signal to the sub display controller, and the sub display controller is used for controlling the sub display equipment to play the sub video signal.
Further, the auxiliary display controller receives the sub-video signals from the main display controller, the sub-video signals are placed into the frame memory, serial display data and a scanning control time sequence required by the screen are generated aiming at the sub-video signals in a partition driving mode, and the screen plays the sub-video signals according to the serial display data and the scanning control time sequence, so that courseware and postnotes of the courseware are displayed on the screen.
In this embodiment, the main display controller receives an external video signal transmitted by the electronic device, the external video signal is used for displaying courseware, the main display controller generates a component video signal based on the external video signal, on one hand, the main display controller controls the main display device to play the component video signal, on the other hand, the main display controller transmits the component video signal and the enable signal to the signal switcher to control the signal switcher to transmit the component video signal to the auxiliary display controller, the auxiliary display controller is used for controlling the auxiliary display device to play the component video signal, the main display device and the auxiliary display device are coordinated to play the component video signal by the main display controller, one electronic device is connected, two devices do not need to be respectively and independently connected to different electronic devices, the simplicity of operation is greatly improved, and the main display controller and the auxiliary display controller do not need to frequently communicate with courseware, so that the simplicity of operation is greatly improved, the courseware can be displayed on the main display device and the auxiliary display device by displaying the same path of branch video signals, so that the real-time property of the courseware displayed by the main display device and the auxiliary display device is ensured, and the time delay of displaying the courseware is reduced.
In addition, the main display controller receives annotation operation, displays annotation information aiming at the courseware on the external video signal, and accordingly generates sub video signals, the main display device and the auxiliary display device can add annotation to the courseware synchronously, flexibility is high, the annotation information is displayed through the video signals, the display device can display the annotation information by displaying the sub video signals, the annotation information does not need to be generated, the load of the auxiliary display device can be reduced, and in addition, due to the fact that the time delay of displaying the courseware is reduced, the time delay of annotating the courseware can be reduced.
Example two
Fig. 4 is a flowchart of a courseware annotation method according to a second embodiment of the present invention, which is based on the foregoing embodiment, and the present embodiment further adds a processing operation of superimposing annotation information on external video data, and the method specifically includes the following steps:
s401, the main display controller receives an external video signal transmitted by the electronic equipment.
Wherein, the external video signal is used for displaying courseware.
S402, the main display controller receives annotation operation.
In a specific implementation, the annotation operation belongs to annotation, so called annotation, which can refer to comment and annotate in the courseware during reading and is used for helping a user to master the content in the courseware.
When the annotation operation is triggered, the user may select attributes of the annotation information, such as the color of the annotation information, the line width of the annotation information, and so forth.
In addition, the main display device may also provide some uniform graphics as annotation information, such as a straight line, a circle, an arrow, and the like, which is not limited in this embodiment.
In a specific implementation, a user can operate the display device by using a finger or a touch pen in a touch manner, so that the main display controller receives annotation operation. Or, the user can also operate in a keying mode through an external device connected with the main display device, so that the main display controller receives annotation operation. The external device includes, but is not limited to, a mouse, etc.
The present embodiment is preferably described by taking a touch manner as an example, and it can be understood that all annotation operations occurring in the present embodiment can be performed by using a touch manner or a key manner, and are described by taking a touch manner as an example.
In the main display device, the main display controller screen shields the controller from touch operation on the main display device.
The term "mask" may mean that the controller can receive the touch operation, but the main display controller notifies the controller to ignore the touch operation, or that the touch operation is not transmitted to the controller, which is not limited in this embodiment.
Further, in the main display device, the touch operation may be transmitted through a standard USB protocol, a USB switch is disposed in the main display device, the USB switch is respectively connected to the controller and the main display controller, and is capable of distributing the received touch operation to the controller and the main display controller, and the main display controller is capable of sending an enable signal to the USB switch, so as to control the USB switch to output the touch operation to the controller and/or the main display controller.
It should be noted that, the main display controller controls the logic distributed by the touch operation, and the controller directly responds to the touch operation without determining whether to respond to the touch operation after receiving the touch operation, and if the touch operation is not transmitted to the controller, the logical coincidence between the controller and the main display controller can be reduced, thereby reducing the coupling between the controller and the main display controller.
In this embodiment, the main display controller receives a touch operation applied to the main display device as an annotation operation. The main display controller can send an enable signal to the USB switcher to control the USB switcher to output the touch operation to the main display controller, and at this time, the controller does not receive the touch operation, or simultaneously outputs the touch operation to the controller and the main display controller, and at this time, the controller ignores the touch operation.
In the sub display device, on the one hand, the sub display controller shields a touch operation acting on the sub display device.
The shielding may refer to that the secondary display controller receives the touch operation but ignores the touch operation, or may refer to that the touch operation is transmitted to the controller without being transmitted to the secondary display controller, which is not limited in this embodiment.
On the other hand, the auxiliary display controller screen shields the controller from touch operation acting on the auxiliary display equipment.
The shielding may mean that the controller may receive the touch operation, but the sub display controller notifies the controller to ignore the touch operation, or may mean that the touch operation is not transmitted to the controller, which is not limited in this embodiment.
Further, in the secondary display device, the touch operation may be transmitted through a standard USB protocol, a USB switch is disposed in the secondary display device, and the USB switch is connected to the data ports of the secondary display device and the secondary display device, respectively, and may distribute the received touch operation to the secondary display device, and distribute the received touch operation to the controller in the primary display device through the data port of the secondary display device, and the secondary display device may send an enable signal to the USB switch, so as to control the USB switch to output the touch operation to the controller and/or the secondary display device.
It should be noted that the secondary display controller controls the logic distributed by the touch operation, and the controller directly responds to the touch operation without determining whether to respond to the touch operation after receiving the touch operation, and if the touch operation is not transmitted to the controller, the logic coincidence between the controller and the secondary display controller can be reduced, thereby reducing the coupling between the controller and the secondary display controller.
In this embodiment, the main display controller receives the touch operation, which is sent by the sub display controller and acts on the sub display device, as the annotation operation. The auxiliary display controller can send an enabling signal to the USB switcher to control the USB switcher to output touch operation to the auxiliary display controller, at the moment, the auxiliary display controller ignores the touch operation and directly transmits the touch operation to the main display controller, the controller does not receive the touch operation, or the touch operation is output to the controller and the auxiliary display controller simultaneously, at the moment, the auxiliary display controller ignores the touch operation and directly transmits the touch operation to the main display controller, and the controller ignores the touch operation.
And S403, the main display controller generates annotation information adaptive to the annotation operation.
In this embodiment, the main display controller can read the attribute of the annotation information selected in the annotation operation, such as the color of the annotation information, the line width of the annotation information, and the like.
And drawing information with the attribute as annotation information aiming at the courseware.
If the annotation information is touch operation, the information with the attribute can be drawn for the courseware along the track of the touch operation as the annotation information.
In addition, the main display controller may draw a graphic having the attribute for the courseware as annotation information, such as a straight line, a circle, an arrow, and the like, which is not limited in this embodiment.
And S404, the main display controller superposes the annotation information on the external video signal.
S405, the main display controller combines the external video signal and the annotation information to obtain a sub video signal.
In a specific implementation, the external video signal has a plurality of frames of image data.
And the main display controller superposes the annotation information on one or more frames of image data of the external video signal according to the coordinates indicated by the annotation operation, and combines the one or more frames of image data in the external video signal with the annotation information, so as to generate one or more frames of new image data as the sub-video signal.
Further, the main display controller freezes the external video signal, and the freezing may refer to keeping receiving the external video signal, where the external video signal has multi-frame image data, and maintains displaying the image data when the annotation triggering operation is triggered on the screen, and ignores other image data.
Because the external video signals all have multi-frame image data, different image data have difference when displaying, and by freezing the external video signals, the smoothness can be kept when displaying the annotation information.
Of course, since the content difference between different image data is not large, the external video signal may not be frozen, which is not limited in this embodiment.
And if the main display equipment exits the annotating mode, the annotating operation is finished, and the main display controller releases the freezing of the external video signal when the annotating operation is finished, namely releases the display of the image data when the annotating operation is triggered, and continues to normally display other image data in the external video signal.
S406, the main display controller controls the main display device to play the sub video signal.
S407, the main display controller transmits the sub video signal and the enable signal to the signal switcher so as to control the signal switcher to transmit the sub video signal to the auxiliary display controller.
The auxiliary display controller is used for controlling the auxiliary display equipment to play the sub-video signal.
EXAMPLE III
Fig. 5 is a schematic structural diagram of a main display device according to a third embodiment of the present invention, the main display device is respectively connected to an electronic device and an auxiliary display device, the main display device is provided with a controller 501, a main display controller 502 and a signal switcher 503, the signal switcher is respectively connected to the controller and the controller, the auxiliary display device is provided with an auxiliary display controller, wherein the main display controller 502 is configured to:
receiving an external video signal transmitted by the electronic equipment, wherein the external video signal is used for displaying courseware;
receiving annotation operation, and generating annotation information aiming at the courseware on the external video signal to obtain sub-video signals;
controlling the main display device to play the sub video signal;
and transmitting the sub video signal and the enabling signal to the signal switcher so as to control the signal switcher to transmit the sub video signal to the auxiliary display controller, wherein the auxiliary display controller is used for controlling the auxiliary display equipment to play the sub video signal.
In an embodiment of the present invention, the main display device has a main operation area, a main annotation control is displayed in the main operation area, and the main display 502 is further configured to:
receiving touch operation acting on the main annotation control;
and responding to the touch operation, entering an annotation mode, and informing the auxiliary display controller to enter the annotation mode.
In an embodiment of the present invention, the secondary display device has a secondary operation area, a secondary annotation control is displayed in the secondary operation area, and the primary display controller 502 is further configured to:
receiving an annotation notification sent by the auxiliary display controller when the auxiliary display controller enters an annotation mode;
entering an annotation mode in response to the annotation notification;
and the auxiliary display controller enters an annotation mode when receiving touch operation acting on the auxiliary annotation control.
In an embodiment of the present invention, the main display controller 502 is further configured to shield the controller from the touch operation acting on the main display device;
the auxiliary display controller shields touch operation acting on the auxiliary display equipment;
and the auxiliary display controller shields the controller from touch operation acting on the auxiliary display equipment.
In one embodiment of the present invention, the master display 502 is further configured to:
and receiving touch operation acting on the main display equipment as annotation operation.
And/or the presence of a gas in the gas,
and receiving touch operation which is sent by the auxiliary display controller and acts on the auxiliary display equipment as annotation operation.
In one embodiment of the present invention, the master display 502 is further configured to:
generating annotation information adaptive to the annotation operation;
superimposing the annotation information on the external video signal;
and combining the external video signal and the annotation information to obtain a sub-video signal.
In one embodiment of the present invention, the master display 502 is further configured to:
freezing the external video signal;
and when the annotation operation is finished, the external video signal is unfrozen.
The main display device provided by the embodiment of the invention can execute the annotating method of the courseware provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example four
Fig. 6 is a schematic structural diagram of a courseware annotating system according to a fourth embodiment of the present invention, the system includes a main display device 610 and a sub display device 620 connected together, the main display device 610 is connected to an electronic device, the main display device 610 is provided with a controller 611, a main display 612 and a signal switch 613, the signal switch 613 is respectively connected to the controller 611 and the main display 612, and the sub display device 620 is provided with a sub display 621;
the main display controller 612 is configured to receive an external video signal transmitted by the electronic device, where the external video signal is used to display courseware;
receiving annotation operation, and generating annotation information aiming at the courseware on the external video signal to obtain sub-video signals;
controlling the main display device to play the sub video signal;
transmitting the sub video signal and an enable signal to the signal switcher so as to control the signal switcher to transmit the sub video signal to the secondary display controller;
and the secondary display controller 622 is configured to control the secondary display device to play the sub-video signal.
In an embodiment of the present invention, the main display device has a main operation area, a main annotation control is displayed in the main operation area, and the main display 612 is further configured to:
receiving touch operation acting on the main annotation control;
and responding to the touch operation, entering an annotation mode, and informing the auxiliary display controller to enter the annotation mode.
In an embodiment of the present invention, the secondary display device has a secondary operation area, a secondary annotation control is displayed in the secondary operation area, and the primary display 612 is further configured to:
receiving an annotation notification sent by the auxiliary display controller when the auxiliary display controller enters an annotation mode;
entering an annotation mode in response to the annotation notification;
and the auxiliary display controller enters an annotation mode when receiving touch operation acting on the auxiliary annotation control.
In an embodiment of the present invention, the main display controller 612 is further configured to shield the controller from the touch operation acting on the main display device;
the secondary display controller 622 is further configured to shield the touch operation acting on the secondary display device, and shield the controller from the touch operation acting on the secondary display device.
In an embodiment of the present invention, the master display 612 is further configured to:
and receiving touch operation acting on the main display equipment as annotation operation.
And/or the presence of a gas in the gas,
and receiving touch operation which is sent by the auxiliary display controller and acts on the auxiliary display equipment as annotation operation.
In an embodiment of the present invention, the master display 612 is further configured to:
generating annotation information adaptive to the annotation operation;
superimposing the annotation information on the external video signal;
and combining the external video signal and the annotation information to obtain a sub-video signal.
In an embodiment of the present invention, the master display 612 is further configured to:
freezing the external video signal;
and when the annotation operation is finished, the external video signal is unfrozen.
The courseware annotating system provided by the embodiment of the invention can execute the courseware annotating method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
Fig. 7 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention. As shown in fig. 7, the computer apparatus includes a processor 700, a memory 701, a communication module 702, an input device 703, and an output device 704; the number of the processors 700 in the computer device may be one or more, and one processor 700 is taken as an example in fig. 7; the processor 700, the memory 701, the communication module 702, the input device 703 and the output device 704 in the computer apparatus may be connected by a bus or other means, and fig. 7 illustrates an example of connection by a bus.
The memory 701 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as modules corresponding to the annotation method of courseware in the present embodiment (for example, the controller 501 in the main display device, the main display controller 502, as shown in fig. 5, the controller 611, the main display controller 612, and the sub display controller 621 in the annotation system of courseware, as shown in fig. 6). The processor 700 executes various functional applications and data processing of the computer device by executing software programs, instructions and modules stored in the memory 701, namely, implements the courseware annotating method described above.
The memory 701 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the computer device, and the like. Further, the memory 701 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 701 may further include memory located remotely from processor 700, which may be connected to a computer device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
And the communication module 702 is used for establishing connection with the display screen and realizing data interaction with the display screen. The input device 703 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the computer apparatus.
The computer device provided by the embodiment of the invention can execute the annotating method of the courseware provided by any embodiment of the invention, and has corresponding functions and beneficial effects.
EXAMPLE six
An embodiment of the present invention further provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements a method for annotating courseware, where a main display device is connected to an electronic device through a sub-display device, a controller, a main display controller, and a signal switcher are disposed in the main display device, the signal switcher is connected to the controller and the sub-display device, and the sub-display controller is disposed in the sub-display device, and the method includes:
the main display controller receives an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware;
the main display controller receives annotation operation, generates annotation information aiming at the courseware on the external video signal and obtains sub-video signals;
the main display controller controls the main display equipment to play the sub-video signal;
the main display controller transmits the sub video signal and the enabling signal to the signal switcher to control the signal switcher to transmit the sub video signal to the auxiliary display controller, and the auxiliary display controller is used for controlling the auxiliary display equipment to play the sub video signal.
Of course, the computer-readable storage medium provided in the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the annotation method for courseware provided in any embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the annotating system for the main display device and the courseware, the included units and modules are only divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (11)
1. The courseware annotating method is characterized in that a main display device is connected with an electronic device through a pair of display devices respectively, a controller, a main display controller and a signal switcher are arranged in the main display device, the signal switcher is connected with the controller and the controller respectively, a pair of display controllers are arranged in the pair of display devices, and the method comprises the following steps:
the main display controller receives an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware;
the main display controller receives annotation operation, generates annotation information aiming at the courseware on the external video signal and obtains sub-video signals;
the main display controller controls the main display equipment to play the sub-video signal;
the main display controller transmits the sub video signal and the enabling signal to the signal switcher to control the signal switcher to transmit the sub video signal to the auxiliary display controller, and the auxiliary display controller is used for controlling the auxiliary display equipment to play the sub video signal.
2. The method of claim 1, wherein the primary display device has a primary operation area in which a primary annotation control is displayed, and further comprising, before the primary display receives an annotation operation:
the main display controller receives touch operation acting on the main annotation control;
and the main display controller responds to the touch operation, enters an annotation mode, and informs the auxiliary display controller to enter the annotation mode.
3. The method of claim 1, wherein the secondary display device has a secondary operation area in which a secondary annotation control is displayed, and further comprising, before the primary display receives an annotation operation:
the main display controller receives an annotation notification sent by the auxiliary display controller when entering an annotation mode;
the main display controller responds to the annotation notification and enters an annotation mode;
and the auxiliary display controller enters an annotation mode when receiving touch operation acting on the auxiliary annotation control.
4. The method of claim 1,
the main display controller shields the controller from touch operation acting on the main display equipment;
the auxiliary display controller shields touch operation acting on the auxiliary display equipment;
and the auxiliary display controller shields the controller from touch operation acting on the auxiliary display equipment.
5. The method of any of claims 1-4, wherein the master display receives an annotation operation comprising:
and the main display controller receives touch operation acting on the main display equipment as annotation operation.
And/or the presence of a gas in the gas,
and the main display controller receives the touch operation which is sent by the auxiliary display controller and acts on the auxiliary display equipment as the annotation operation.
6. The method according to any one of claims 1-4, wherein generating annotation information for the courseware on top of the circumscribed video signal, obtaining a sub-video signal, comprises:
the main display controller generates annotation information adaptive to the annotation operation;
the main display controller superposes the annotation information on the external video signal;
and the main display controller combines the external video signal and the annotation information to obtain a sub video signal.
7. The method of claim 6, wherein generating annotation information for the courseware over the circumscribed video signal, obtaining a sub-video signal, further comprises:
the main display controller freezes the external video signal;
and the main display controller releases the freezing of the external video signal when the annotating operation is finished.
8. The utility model provides a main display device, its characterized in that, main display device is connected an electronic equipment with a pair display device respectively and is connected be provided with controller, main display accuse ware and signal switch ware in the main display device, the signal switch ware is connected respectively the controller with the controller be provided with vice display accuse ware in the vice display device, wherein, main display accuse ware is used for:
receiving an external video signal transmitted by the electronic equipment, wherein the external video signal is used for displaying courseware;
receiving annotation operation, and generating annotation information aiming at the courseware on the external video signal to obtain sub-video signals;
controlling the main display device to play the sub video signal;
and transmitting the sub video signal and the enabling signal to the signal switcher so as to control the signal switcher to transmit the sub video signal to the auxiliary display controller, wherein the auxiliary display controller is used for controlling the auxiliary display equipment to play the sub video signal.
9. The courseware annotating system is characterized by comprising a main display device and an auxiliary display device which are connected, wherein the main display device is connected with an electronic device, a controller, a main display controller and a signal switcher are arranged in the main display device, the signal switcher is respectively connected with the controller and the main display controller, and an auxiliary display controller is arranged in the auxiliary display device;
the main display controller is used for receiving an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware;
receiving annotation operation, and generating annotation information aiming at the courseware on the external video signal to obtain sub-video signals;
controlling the main display device to play the sub video signal;
transmitting the sub video signal and an enable signal to the signal switcher so as to control the signal switcher to transmit the sub video signal to the secondary display controller;
and the auxiliary display controller is used for controlling the auxiliary display equipment to play the sub-video signal.
10. A computer device, characterized in that the computer device comprises:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement an annotation method of a courseware according to any one of claims 1-7.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method of annotating a courseware according to any one of claims 1-7.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100279266A1 (en) * | 2009-04-07 | 2010-11-04 | Kendall Laine | System and method for hybrid course instruction |
| CN102457704A (en) * | 2010-10-18 | 2012-05-16 | 深圳市诺威达科技有限公司 | Vehicle-mounted multi-screen interaction system |
| JP2017151554A (en) * | 2016-02-22 | 2017-08-31 | 株式会社ベネッセコーポレーション | Program, information processing method, and server device |
| CN107332845A (en) * | 2017-07-03 | 2017-11-07 | 努比亚技术有限公司 | Meeting projection annotation method, mobile terminal and computer-readable recording medium |
| CN108595401A (en) * | 2018-04-24 | 2018-09-28 | 广州视源电子科技股份有限公司 | Annotate synchronization system, method, apparatus, equipment and storage medium |
| CN109145273A (en) * | 2018-07-27 | 2019-01-04 | 广州视源电子科技股份有限公司 | A kind of annotation following display method, device, equipment and storage medium |
| US20190155495A1 (en) * | 2017-11-22 | 2019-05-23 | Microsoft Technology Licensing, Llc | Dynamic device interaction adaptation based on user engagement |
-
2019
- 2019-09-30 CN CN201910941649.6A patent/CN112579016A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100279266A1 (en) * | 2009-04-07 | 2010-11-04 | Kendall Laine | System and method for hybrid course instruction |
| CN102457704A (en) * | 2010-10-18 | 2012-05-16 | 深圳市诺威达科技有限公司 | Vehicle-mounted multi-screen interaction system |
| JP2017151554A (en) * | 2016-02-22 | 2017-08-31 | 株式会社ベネッセコーポレーション | Program, information processing method, and server device |
| CN107332845A (en) * | 2017-07-03 | 2017-11-07 | 努比亚技术有限公司 | Meeting projection annotation method, mobile terminal and computer-readable recording medium |
| US20190155495A1 (en) * | 2017-11-22 | 2019-05-23 | Microsoft Technology Licensing, Llc | Dynamic device interaction adaptation based on user engagement |
| CN108595401A (en) * | 2018-04-24 | 2018-09-28 | 广州视源电子科技股份有限公司 | Annotate synchronization system, method, apparatus, equipment and storage medium |
| CN109145273A (en) * | 2018-07-27 | 2019-01-04 | 广州视源电子科技股份有限公司 | A kind of annotation following display method, device, equipment and storage medium |
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