CN112579017B - Annotating method, system, equipment and storage medium for courseware - Google Patents
Annotating method, system, equipment and storage medium for courseware Download PDFInfo
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- 238000010586 diagram Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 6
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- 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
- G06F3/1423—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
- G06F3/1431—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 using a single graphics controller
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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Abstract
The embodiment of the invention discloses a courseware annotating method, a system, equipment and a storage medium, wherein the method comprises the following steps: the main display controller receives an external video signal which is transmitted by the video distributor and is derived from the electronic equipment, and the external video signal is used for displaying courseware; the main display controller controls the main display device to play the external video signal; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the external video signal from the video distributor to the auxiliary display controller, and the auxiliary display controller is used for playing the external video signal on the auxiliary display device; the main display controller receives a first annotation operation acting on the main display device; and the main display controller displays first annotation information for the courseware on the external video signal according to the first annotation operation. The embodiment of the invention can independently annotate courseware in the main display equipment, and has strong flexibility.
Description
Technical Field
The embodiment of the invention relates to education technology, in particular to a courseware annotating method, system, equipment and storage medium.
Background
In some classrooms, a machine is used as a multimedia device in combination 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, courseware is displayed independently, the courseware is annotated independently, when other courseware is externally connected, the two machines are required to be connected into different electronic equipment independently, the courseware is provided by the electronic equipment, so that the courseware is annotated in the different machines, the operation is complex, and the two machines are caused to display the courseware with time delay and annotate the courseware with time delay.
Disclosure of Invention
The embodiment of the invention provides a courseware annotating method, system, equipment and storage medium, which are used for solving the problems that two machines are respectively and independently connected with different electronic equipment to display courseware, and the two machines are used for independently displaying the courseware and are delayed in annotating the courseware.
In a first aspect, an embodiment of the present invention provides an annotation method for courseware, where a main display device is connected to an auxiliary display device and an electronic device, where a controller, a main display controller, a signal switcher, and a video distributor are provided in the main display device, where the signal switcher is connected to the controller, the main display controller, and the video distributor, and the auxiliary display controller is provided in the auxiliary display device, where the method includes:
the main display controller receives an external video signal which is transmitted by the video distributor and is derived from the electronic equipment, and the external video signal is used for displaying courseware;
the main display controller controls the main display device to play the external video signal;
the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the external video signal from the video distributor to the auxiliary display controller, and the auxiliary display controller is used for playing the external video signal on the auxiliary display device;
the main display controller receives a first annotation operation acting on the main display device;
and the main display controller displays first annotation information for the courseware on the external video signal according to the first annotation operation.
In a second aspect, an embodiment of the present invention further provides a main display device, where the main display device is connected to a secondary display device and an electronic device, a controller, a main display controller, a signal switcher, and a video distributor are provided in the main display device, the signal switcher is connected to the controller, the main display controller, and the video distributor, and a secondary display controller is provided in the secondary display device, where the main display controller is configured to:
receiving an external video signal which is transmitted by the video distributor and is derived from the electronic equipment, wherein the external video signal is used for displaying courseware;
controlling the main display equipment to play the external video signal;
transmitting an enabling signal to the signal switcher to control the signal switcher to transmit the external video signal from the video distributor to the auxiliary display controller, wherein the auxiliary display controller is used for playing the external video signal on the auxiliary display device;
receiving a first annotation operation acting on the main display device;
and displaying first annotation information for the courseware on the external video signal according to the first annotation operation.
In a third aspect, an embodiment of the present invention further provides an annotation system for courseware, where the system includes a main display device and an auxiliary display device that are connected, where the main display device is connected to an electronic device, a controller, a main display controller, a signal switcher, and a video distributor are provided in the main display device, and the signal switcher is respectively connected to the controller, the main display controller, and the video distributor, and an auxiliary display controller is provided in the auxiliary display device;
the main display controller is used for receiving an external video signal which is transmitted by the video distributor and is derived from the electronic equipment, and the external video signal is used for displaying courseware; controlling the main display equipment to play the external video signal; transmitting an enable signal to the signal switcher to control the signal switcher to transmit the external video signal from the video distributor to the secondary display controller;
the auxiliary display controller is used for playing the external video signal on the auxiliary display equipment;
the main display controller is further used for receiving a first annotation operation acting on the main display device; and displaying first annotation information for the courseware on the external video signal according to the first annotation operation.
In a fourth aspect, an embodiment of the present invention further provides a computer apparatus, including:
one or more processors;
a memory for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the annotating method of 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 when executed by a processor implements the annotating method of courseware according to the first aspect.
In this embodiment, the main display controller receives the external video signal transmitted by the video distributor and derived from the electronic device, the external video signal is used for displaying courseware, on one hand, the main display controller controls the main display device to play the external video signal, on the other hand, the main display controller transmits the enabling signal to the signal switcher so as to control the signal switcher to transmit the external video signal derived from the video distributor to the auxiliary display controller, the auxiliary display controller is used for playing the external video signal on the auxiliary display device, the main display device and the auxiliary display device are coordinated to play the external video signal uniformly by the main display controller, and the electronic device is connected, so that two machines are not required to be connected to different electronic devices independently, the simplicity of operation is greatly improved, and the main display controller and the auxiliary display controller are not required to communicate with courseware frequently, so that the courseware can be displayed on the main display device and the auxiliary display device, the real-time of the courseware can be ensured, and the time delay of the courseware can be reduced.
In addition, the main display controller receives a first annotation operation acting on the main display device, and according to the first annotation operation, first annotation information is displayed for courseware on the external video signal, and the courseware can be annotated independently in the main display device.
Drawings
Fig. 1 is a schematic structural diagram of a primary display device and a secondary display device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a signal switch according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a signal distributor according to an embodiment of the present invention;
FIG. 4 is a flowchart of a method for annotating courseware according to an embodiment of the present invention;
FIG. 5 is a flowchart of a method for annotating courseware provided in a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a main display device according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of an annotating system for courseware according to a fourth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Fig. 1 is a schematic structural diagram of a main display device and a secondary 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, thereby realizing connection of the main display device 10 and the sub display device 20.
The data ports of the main display device 10 and the data ports of the auxiliary display device 20 can be provided with various types of pins such as video pins, data pins, network pins and the like according to service requirements.
Among them, a video pin may be used to transmit a video signal, and an HDMI (High Definition Multimedia Interface, high-definition multimedia interface) signal is taken as an example of the 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 camera, MIC (microphone), TOUCH (TOUCH operation) and other types of signals.
Network pins may be used to transmit network signals, such as gigabit network signals, for network communication.
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 switcher 130, a signal distributor 140, and the like.
The controller 10 belongs to an operation module with higher performance.
For example, the controller 10 may be an Android (Android) module, i.e. an Android (Android) system may be installed, and components such as a CPU (Central Processing Unit ), GPU (Graphics Processing Unit, graphics processor), RAM (random access Memory ), ROM (Read-Only Memory) and the like are configured, for example, for the Android7.0 version, the CPU is dual core a72 and quad core a53, the GPU is 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, GPU, memory, hard disk, etc., for example, for a pluggable Intel Core series modular computer, the CPU is Intel Core i5/i7, the GPU is a Core display Intel HD Graphics, the memory is DDR4 8G/16G, and the hard disk is 128G/256G.
The main display controller 120 belongs to a display screen controller (Display Controllers), has lower operation performance, such as 811SOC (System on Chip), and is responsible for receiving video signals from a computer serial port, placing the video signals into a frame memory, and generating serial display data and scanning control time sequences required by a screen according to a partition driving mode.
The signal switch 130 belongs to a switch, and may receive at least two video signals, which may be HDMI signals, and output one of the video signals.
Referring to fig. 2, a schematic diagram of a signal switch according to an embodiment of the invention is shown.
As shown in fig. 2, the signal switcher 130 has a first video input interface 133, a second video input interface 134, a third video input interface 135, a control interface 132, and a video output interface 131.
The first video input interface 133 is connected to the controller 110, and is capable of receiving video signals 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 third video input interface 135 is connected to the signal distributor 140 and receives the video signal transmitted from the signal distributor 140.
The control interface 132 is connected to the main display controller 120, and can receive the enable signal transmitted by the main display controller 120.
The video output interface 131 may expose a housing of the main display device 10, be connected to the sub display device 20 as pins in a data port, and may output a corresponding video signal to the sub display device 20 according to an enable signal.
For example, when the main display controller 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 main display controller 120 transmits the signal of the second level as the enable signal to the signal switch 130, the signal switch 130 outputs the video signal transmitted by the main display controller 120.
When the main display controller 120 transmits the signal of the third level as an enable signal to the signal switcher 130, the signal switcher 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 may receive one path of video signal, which may be an HDMI signal, and project the path of video signal to at least two paths of video signals.
Referring to fig. 3, a schematic diagram of a signal distributor according to an embodiment of the present invention is shown.
As shown in fig. 3, the signal switcher 140 has a video input interface 141, a first video output interface 142, and a second video output interface 143.
The video input interface 141 may expose a housing of the main display device 10, and may be connected to other electronic devices, such as a personal computer, a notebook computer, etc., to receive video signals input from the electronic devices.
The first video output interface 142 is connected to the main display controller 120, and can output video signals to the main display controller 120.
The second video output interface 143 is connected to the signal switch 130, and outputs a video signal to the signal switch 130.
As shown in fig. 1, the sub display device 20 has a screen (not shown), a sub display controller 210.
The auxiliary display controller 210 belongs to a display screen controller (Display Controllers), has lower operation performance, such as 811SOC, and is responsible for receiving video signals from a computer serial port, placing the video signals into a frame memory, and generating serial display data and scanning control time sequences required by a screen according to a partition driving mode.
The intelligent interaction panel is taken as an example of a main display device and an auxiliary display device, the hardware part of the intelligent interaction panel is composed of a display module, an intelligent processing system (comprising a display controller (such as a main display controller and an auxiliary display controller), or a controller, a display controller (such as a main display controller and an auxiliary display controller)) and the like, the intelligent processing system is combined by integral structural components, and meanwhile, the intelligent processing system 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 conductive layer, a liquid crystal layer and the like.
In the embodiments of the present disclosure, the display screen refers to a touch screen, and a touch panel, and is an inductive liquid crystal display device, and when a graphic button on the screen is touched, the haptic feedback system on the screen can drive various connection devices according to a preprogrammed program, and can be used to replace a mechanical button panel, and a vivid audio/video effect can be produced by using the liquid crystal display. Touch screens are distinguished from technical principles and can be divided into five basic categories; vector pressure sensing technology touch screens, resistive technology touch screens, capacitive technology touch screens, infrared technology touch screens, and surface acoustic wave technology touch screens. Touch screens can be divided into four categories according to the operating principle of the touch screen and the medium for transmitting information: resistive, capacitive, infrared, and surface acoustic wave.
When a user touches the screen with a finger or pen, the coordinates of the point are positioned, so that the control of the intelligent processing system is realized, and then different functional applications are realized along with the software built in the intelligent processing system.
The screen and the large screen mentioned in the embodiment of the invention all refer to the display screen of the intelligent interaction panel; the intelligent interaction panel displays data such as a certain interface and annotation information, and the display screen of the intelligent interaction panel displays the data such as the interface and the annotation information.
Example 1
Fig. 4 is a flowchart of a method for annotating courseware provided in an embodiment of the present invention, where the method may be implemented by a main display device and an auxiliary display device, where the main display device and the auxiliary display device are configured to control the main display device and the auxiliary display device to display courseware, the main display device and the auxiliary display device are configured to perform annotation on courseware, the main display device and the auxiliary display device are connected to each other, 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, the main display device, a video distributor, and a signal switcher, where the signal switcher is respectively connected to the controller, the main display device, and the video distributor, and the auxiliary display device is provided with an auxiliary display device, and the method specifically includes the following steps:
S401, the main display controller receives an external video signal which is transmitted by the video distributor and is derived from the electronic equipment.
In this embodiment, the main display controller is kept connected to an electronic device, such as a personal computer, a notebook computer, etc., and the electronic device has a courseware, calls an application adapted to the format of the courseware, and opens the courseware, at this time, the courseware is displayed on a desktop, and converts desktop data into a video signal, such as an HDMI signal, so as to generate an external video signal, that is, the external video signal is used to display the courseware.
The courseware may refer to a course document which is manufactured according to the teaching requirements through links such as teaching target determination, teaching content and task analysis, teaching activity structure, interface design and the like, for example, PPT (PowerPoint), word (word processor application), PDF (Portable Document Format ), txt (text document), seeao (hewang), 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 an activity such as interest classification (competitive mode), grouping competition, and judgment of error.
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 (athletic mode), grouping competition, error judgment and the like, clicking a start control can expand the activity and enter an activity stage.
For other activities, the active phase is entered after entering the active page or resetting of the courseware.
In the activity stage, a control for selecting an element in the class listening terminal is activated to be in an operable state, at this time, the class listening terminal can operate the element related to the activity, for example, in the activities of classification of "region", "country", a card "Beijing", "New York", "United states", "Chinese", in the activity is dragged, the element for controlling the activity (such as controls for pause, continuation, reset, etc.), and the element unrelated to the activity (such as shape, mind map) are operated.
In the summary phase, the results of the activity, such as scores, answers, etc., may be displayed, at which point the teaching terminal may click on a control for resetting or viewing the answers.
In a specific implementation, the main display device is connected with the electronic device through 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 connected between the data port of the main display device and the data port of the electronic device, so that the electronic device can be connected with 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 service requirements.
The video pins may be used to transmit video signals, and the HDMI signal is taken as an example of the video signals, and the pair of video pins may be used to transmit HDMI clock signals, the pair of video signals may be used to transmit HDMI red signals, the pair of video signals may be used to transmit HDMI green signals, and the pair of video signals may be used to transmit HDMI blue signals.
The data pins may be used to transmit serial signals, such as USB3.0 signals, USB2.0 signals, including camera, MIC (microphone), TOUCH (TOUCH operation), and the like.
Network pins may be used to transmit network signals, such as gigabit network signals, for network communication.
In addition, the video input interface of the signal distributor is connected with the video pin in the data port of the main display device, so as to receive the external video signal of the electronic device.
The signal distributor outputs two paths of externally connected video signals, wherein one path of externally connected video signal is transmitted to the main display controller, and the other path of externally connected video signal is transmitted to the signal switcher.
S402, the main display controller controls the main display device to play the external video signal.
For the external video signal of the electronic equipment, the main display controller can directly control the playing of the main display equipment.
Furthermore, the main display controller puts the external connection into the frame memory, and the screen plays according to the serial display data and the scanning control time sequence aiming at the serial display data and the scanning control time sequence required by the external connection for generating the screen according to the partition driving mode, so that courseware is displayed on the screen.
S403, the main display controller transmits an enabling signal to the signal switcher so as to control the signal switcher to transmit the external video signal from the video distributor to the auxiliary display controller.
In this embodiment, the main display controller generates an enable signal and transmits the enable signal to the signal switcher.
The signal switcher responds to the enabling signal and outputs the video signal from the video distributor, namely, the external video signal is output to the auxiliary display controller, and the auxiliary display controller is used for controlling the auxiliary display equipment to play the external video signal.
Further, the auxiliary display controller receives an external video signal from the electronic device, puts the external video signal into the frame memory, generates serial display data and a scanning control time sequence required by a screen aiming at the external video signal in a partition driving mode, and plays the screen according to the serial display data and the scanning control time sequence, so that courseware is displayed on the screen.
S404, the main display controller receives a first annotation operation acting on the main display device.
In this embodiment, the user may control the main display device to enter the annotation mode according to the demonstration situation of the actual courseware, and trigger the first annotation operation on the main display device, so that the first annotation information is displayed on the main display device.
The first annotating operation belongs to annotating, and the annotating can refer to criticizing and annotating in courseware during reading, and is used for helping a user to master contents in the courseware.
It should be noted that, in addition to criticizing and annotating, the first annotation information may be used for other purposes, for example, when the primary display device and the secondary display device simultaneously display problems of courseware, the teacher may enable different students to answer the problems on the primary display device and the secondary display device, where one or more students answer the problems on the primary display device through the first annotation operation, and at this time, the first annotation information is solution problem information, and so on, which is not limited in this embodiment.
When the first annotation operation is triggered, the user may select an attribute of the first annotation information, for example, a color of the first annotation information, a line width of the first annotation information, and so on.
In addition, the main display device may also provide some unified graphics as the first annotation information, such as a line, a circle, an arrow, etc., which is not limited in this embodiment.
In a specific implementation, the user may operate by using a finger or a touch pen in a touch manner, so that the main display controller receives the first annotation operation. Or the user can also operate by using a key control mode through external equipment connected with the main display equipment so that the main display controller receives the first annotation operation. The external device includes, but is not limited to, a mouse and the like.
The embodiment is preferably illustrated by touch control, and it is to be understood that all the first annotating operations in the embodiment may be performed by touch control or key control, and are described by touch control.
In this example, the main display shields the controller from touch operations that are applied to the main display device.
The shielding may mean that the controller may receive the touch operation, but the main display informs 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 main display device, the touch operation may be transmitted through a standard USB protocol, and a USB switch is disposed in the main display device, and the USB switch is respectively connected to the controller and the main display device, so that the received touch operation may be distributed to the controller and the main display device, and the main display device may send an enable signal to the USB switch, thereby controlling the USB switch to output the touch operation to the controller and/or the main display device.
It should be noted that, the main display controls the logic distributed by the touch operation, after the controller receives the touch operation, it does not determine whether to respond to the touch operation, but directly responds to the touch operation, if the touch operation is not transmitted to the controller, the logic superposition of the controller and the main display can be reduced, so that the coupling between the controller and the main display is reduced.
In this example, the main display receives a touch operation acting on the main display device as a first annotating operation in the annotating mode.
And S405, the main display controller displays annotation information on the external video signal according to the first annotation operation.
In this embodiment, the main display may read the attribute of the first annotation information selected in the first annotation operation, for example, the color of the first annotation information, the line width of the first annotation information, and so on.
In the main display device, information having the attribute is drawn for courseware on top of an external video signal as first annotation information.
If the first annotation information is a touch operation, the information with the attribute can be drawn for courseware on the first main video signal along the track of the touch operation as the first annotation information.
In addition, a graph having this attribute is drawn for courseware on top of the first main video signal as the first annotation information, such as a line, a circle, an arrow, and the like, to which the present embodiment is not limited.
In a specific implementation, the main display controller may freeze the external video signal, which may mean that the external main video signal is kept received, the external video signal has multi-frame image data, and the image data when the first annotation operation is triggered by maintaining the display of the screen is ignored.
Because the external video signal has multi-frame image data, different image data have differences when being displayed, and the first annotation information can be kept smooth when being displayed by freezing the external video signal.
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.
The main display controller generates a first mask layer above the external video signal, wherein the first mask layer can be a window, and in the operating system, the position of the window is located above the external video signal.
And the main display controller displays the first annotation information aiming at the courseware in the first cover layer according to the first annotation operation, so that the first annotation information is displayed on the external video signal.
If the main display device exits the annotation mode, the main display device indicates that the first annotation operation is finished, and when the first annotation operation is finished, the main display device releases the freezing of the external video signal, namely releases the display of the image data when the first annotation operation is triggered, and continues to normally display other image data in the external video signal.
In this embodiment, the main display controller receives the external video signal transmitted by the video distributor and derived from the electronic device, the external video signal is used for displaying courseware, on one hand, the main display controller controls the main display device to play the external video signal, on the other hand, the main display controller transmits the enabling signal to the signal switcher so as to control the signal switcher to transmit the external video signal derived from the video distributor to the auxiliary display controller, the auxiliary display controller is used for playing the external video signal on the auxiliary display device, the main display device and the auxiliary display device are coordinated to play the external video signal uniformly by the main display controller, and the electronic device is connected, so that two machines are not required to be connected to different electronic devices independently, the simplicity of operation is greatly improved, and the main display controller and the auxiliary display controller are not required to communicate with courseware frequently, so that the courseware can be displayed on the main display device and the auxiliary display device, the real-time of the courseware can be ensured, and the time delay of the courseware can be reduced.
In addition, the main display controller receives a first annotation operation acting on the main display device, and according to the first annotation operation, first annotation information is displayed for courseware on the external video signal, and the courseware can be annotated independently in the main display device.
Example two
Fig. 5 is a flowchart of a method for annotating courseware provided in a second embodiment of the present invention, where the present embodiment is based on the foregoing embodiment, and further adds a processing operation of independently annotating courseware on a secondary display device, and the method specifically includes the following steps:
s501, the main display controller receives an external video signal which is transmitted by the video distributor and is derived from the electronic equipment.
Wherein, external video signal is used for showing courseware.
S502, the main display controller controls the main display device to play the external video signal.
S503, the main display controller transmits an enabling signal to the signal switcher so as to control the signal switcher to transmit the external video signal from the video distributor to the auxiliary display controller.
The auxiliary display controller is used for playing the external video signal on the auxiliary display device.
S504, the auxiliary display controller receives a second annotation operation acting on the auxiliary display device.
In this embodiment, the user may control the secondary display device to enter the annotation mode according to the demonstration situation of the actual courseware, and trigger the second annotation operation on the secondary display device, so that the secondary display device displays the second annotation information.
The second annotating operation belongs to annotating, which can be criticizing and annotating in courseware during reading, and is used for helping a user to master the content in the courseware.
It should be noted that, in addition to criticizing and annotating, the second annotation information may be used for other purposes, for example, when the primary display device and the secondary display device simultaneously display problems of courseware, the teacher may enable different students to answer the problems on the primary display device and the secondary display device, where one or more students answer the problems on the secondary display device through the second annotation operation, and at this time, the second annotation information is solution problem information, and so on, which is not limited in this embodiment.
Upon triggering the second annotation operation, the user may select an attribute of the second annotation information, e.g., a color of the second annotation information, a line width of the second annotation information, and so on.
In addition, the secondary display device may also provide some unified graphics as the second annotation information, such as a line, a circle, an arrow, etc., which is not limited in this embodiment.
In a specific implementation, the user can operate by using a finger or a touch pen in a touch manner, so that the auxiliary display controller receives the second annotation operation. Or the user can also operate by using a keying mode through external equipment connected with the auxiliary display equipment so that the auxiliary display controller receives the second annotation operation. The external device includes, but is not limited to, a mouse and the like.
The embodiment is preferably illustrated by touch control, and it is to be understood that all the first annotating operations in the embodiment may be performed by touch control or key control, and are described by touch control.
In this example, the sub-display shields the controller from touch operations that are applied to the sub-display device.
The shielding may mean that the controller may receive the touch operation, but the secondary display informs 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, the USB switch is respectively connected to the secondary display device and a data port of the secondary display device, the received touch operation may be distributed to 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 auxiliary display controls the logic distributed by the touch operation, after the controller receives the touch operation, it does not determine whether to respond to the touch operation, but directly responds to the touch operation, if the touch operation is not transmitted to the controller, the logic superposition of the controller and the auxiliary display can be reduced, so that the coupling between the controller and the auxiliary display is reduced.
In this example, the sub display receives a touch operation acting on the sub display device as a second annotating operation in the annotating mode.
And S505, the auxiliary display controller displays second annotation information on the external video signal aiming at the courseware according to the second annotation operation.
In this embodiment, the auxiliary display may read the attribute of the second annotation information selected in the second annotation operation, for example, the color of the second annotation information, the line width of the second annotation information, and so on.
In the secondary display device, information having this attribute is drawn for courseware on top of the external video signal as second annotation information.
If the second annotation information is touch operation, the information with the attribute can be drawn on the external video signal for courseware along the track of the touch operation as the second annotation information.
In addition, graphics having this attribute are drawn for courseware on top of the external video signal as second annotation information, such as straight line, circle, arrow, etc., which is not limited in this embodiment.
In a specific implementation, the secondary display controller may freeze the external video signal, which may mean that the external video signal is kept received, the external video signal has multi-frame image data, and the image data when the second annotation operation is triggered by maintaining the display of the screen is ignored.
Because the external video signal has multi-frame image data, different image data have differences when being displayed, and the second annotation information can be kept smooth when being displayed by freezing the external video signal.
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.
The secondary display controller generates a second mask layer above the external video signal, wherein the second mask layer can be a window, and in the operating system, the position of the window is located above the external video signal.
And the auxiliary display controller displays second annotation information aiming at courseware in a second cover layer according to the second annotation operation, so that the second annotation information is displayed on the external video signal.
If the auxiliary display device exits the annotation mode, the auxiliary display device indicates that the second annotation operation is finished, and when the second annotation operation is finished, the auxiliary display device releases the freezing of the external video signal, namely releases the display of the image data when the second annotation operation is triggered, and continues to normally display other image data in the external video signal.
In this embodiment, the auxiliary display controller receives the second annotation operation acting on the auxiliary display device, and according to the second annotation operation, displays the second annotation information on the courseware on the external video signal, and in the auxiliary display device, the courseware can be annotated independently, so that the flexibility is high, and the delay of annotating the courseware can be reduced due to the reduction of the delay of displaying the courseware.
Example III
Fig. 6 is a schematic structural diagram of a main display device according to a third embodiment of the present invention, where the main display device is connected to a secondary display device and an electronic device, a controller 601, a main display controller 602, a signal switcher 603, and a video distributor 604 are disposed in the main display device, the signal switcher 603 is connected to the controller 601, the main display controller 602, and the video distributor 604, and a secondary display controller is disposed in the secondary display device, where the main display controller 602 is configured to:
receiving an external video signal which is transmitted by the video distributor and is derived from the electronic equipment, wherein the external video signal is used for displaying courseware;
controlling the main display equipment to play the external video signal;
transmitting an enabling signal to the signal switcher to control the signal switcher to transmit the external video signal from the video distributor to the auxiliary display controller, wherein the auxiliary display controller is used for playing the external video signal on the auxiliary display device;
receiving a first annotation operation acting on the main display device;
and displaying first annotation information for the courseware on the external video signal according to the first annotation operation.
In one embodiment of the present invention, the main display 602 is further configured to receive a touch operation acting on the main display device as a first annotating operation.
In one embodiment of the present invention, the main display 602 is further configured to:
generating a first mask over the external video signal;
and displaying first annotation information for the courseware in the first mask according to the first annotation operation.
In one embodiment of the present invention, the main display 602 is further configured to:
freezing the external video signal;
and when the first annotating operation is finished, the freezing of the external video signal is relieved.
In one embodiment of the present invention, the main display 602 is further configured to mask the controller from touch operations applied to the main display device.
The main display device provided by the embodiment of the invention can execute the annotating method of courseware provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the executing method.
Example IV
Fig. 7 is a schematic structural diagram of an annotation system for courseware according to a fourth embodiment of the present invention, where the annotation system includes a main display device 710 and a sub display device 720 connected to each other, the main display device 710 is connected to an electronic device, a controller 711, a main display controller 712, a signal switcher 713 and a video distributor 714 are disposed in the main display device 710, the signal switcher 713 is respectively connected to the controller 711, the main display controller 712 and the video distributor 714, and a sub display controller 721 is disposed in the sub display device 720;
The main display controller 712 is configured to receive an external video signal from the electronic device, where the external video signal is transmitted by the video distributor, and the external video signal is used to display courseware; controlling the main display equipment to play the external video signal; transmitting an enable signal to the signal switcher to control the signal switcher to transmit the external video signal from the video distributor to the secondary display controller;
the secondary display controller 721 is configured to play the external video signal on the secondary display device;
the main display controller 712 is further configured to receive a first annotation operation that acts on the main display device; and displaying first annotation information for the courseware on the external video signal according to the first annotation operation.
In one embodiment of the present invention, the main display 712 is further configured to receive a touch operation acting on the main display device as a first annotating operation.
In one embodiment of the present invention, the main display 712 is further configured to:
generating a first mask over the external video signal;
and displaying first annotation information for the courseware in the first mask according to the first annotation operation.
In one embodiment of the present invention, the main display 712 is further configured to:
freezing the external video signal;
and when the first annotating operation is finished, the freezing of the external video signal is relieved.
In one embodiment of the present invention, the main display 712 is further configured to shield the controller from touch operations applied to the main display device.
In one embodiment of the present invention, the secondary display controller 721 is further configured to:
receiving a second annotation operation acting on the secondary display device;
and displaying second annotation information for the courseware on the external video signal according to the second annotation operation.
In one embodiment of the present invention, the secondary display 721 is further configured to receive a touch operation acting on the secondary display device as a second annotation operation.
In one embodiment of the present invention, the secondary display controller 721 is further configured to:
generating a second mask over the external video signal;
and displaying second annotation information for the courseware in the second mask according to the second annotation operation.
In one embodiment of the present invention, the secondary display controller 721 is further configured to:
freezing the external video signal;
And when the second annotating operation is finished, the freezing of the external video signal is relieved.
In one embodiment of the present invention, the secondary display 721 is further configured to shield the controller from touch operations applied to the secondary display device.
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 executing method.
Example five
Fig. 8 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention. As shown in fig. 8, the computer apparatus includes a processor 800, a memory 801, a communication module 802, an input device 803, and an output device 804; the number of processors 800 in the computer device may be one or more, one processor 800 being taken as an example in fig. 8; the processor 800, the memory 801, the communication module 802, the input means 803 and the output means 804 in the computer device may be connected by a bus or other means, in fig. 8 by way of example.
The memory 801 is a computer readable storage medium, and may be used to store a software program, a computer executable program, and a module, such as a module corresponding to the annotation method of a courseware in this embodiment (for example, the controller 601 and the main display controller 602 in the main display device shown in fig. 6, or the controller 711, the main display controller 712, and the sub-display controller 721 in the annotation system of a courseware shown in fig. 7). The processor 800 executes various functional applications of the computer device and data processing, i.e., implements the annotating method of courseware described above, by running software programs, instructions, and modules stored in the memory 801.
The memory 801 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the computer device, etc. In addition, the memory 801 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 801 may further include memory remotely located relative to processor 800, which may be connected to a computer device via 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 802 is used for establishing connection with the display screen and realizing data interaction with the display screen. The input means 803 may be used to receive entered numeric or character information and to generate key signal inputs related to user settings and function control of the computer device.
The computer equipment provided by the embodiment of the invention can execute the annotating method of courseware provided by any embodiment of the invention, and the corresponding functions and beneficial effects are specific.
Example six
The sixth embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, the computer program when executed by a processor implementing a method for annotating courseware, a main display device being connected to a secondary display device and an electronic device, respectively, a controller, a main display controller, a signal switcher, and a video distributor being provided in the main display device, the signal switcher being connected to the controller, the main display controller, and the video distributor, respectively, and a secondary display controller being provided in the secondary display device, the method comprising:
the main display controller receives an external video signal which is transmitted by the video distributor and is derived from the electronic equipment, and the external video signal is used for displaying courseware;
the main display controller controls the main display device to play the external video signal;
the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the external video signal from the video distributor to the auxiliary display controller, and the auxiliary display controller is used for playing the external video signal on the auxiliary display device;
The main display controller receives a first annotation operation acting on the main display device;
and the main display controller displays first annotation information for the courseware on the external video signal according to the first annotation operation.
Of course, the computer readable storage medium provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform the related operations in the annotating method of courseware provided by any embodiment of the present invention.
From the above description of embodiments, it will be clear to a person skilled in the art that the present invention may be implemented by means of software and necessary general purpose hardware, but of course also by means of hardware, although in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, etc., and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments of the present invention.
It should be noted that, in the embodiment of the annotation system of the main display device and courseware, each unit and module included are only divided according to the functional logic, but not limited to the above-mentioned division, so long as the corresponding functions can be realized; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. 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, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (14)
1. The annotating method of courseware is characterized in that a main display device is respectively connected with an auxiliary display device and an electronic device, a controller, a main display controller, a signal switcher and a video distributor are arranged in the main display device, the signal switcher is respectively connected with the controller, the main display controller and the video distributor, and the auxiliary display controller is arranged in the auxiliary display device, and the method comprises the following steps:
The main display controller receives an external video signal which is transmitted by the video distributor and is derived from the electronic equipment, and the external video signal is used for displaying courseware;
the main display controller controls the main display device to play the external video signal;
the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the external video signal from the video distributor to the auxiliary display controller, and the auxiliary display controller is used for playing the external video signal on the auxiliary display device;
the main display controller receives a first annotation operation acting on the main display device;
and the main display controller displays first annotation information for the courseware on the external video signal according to the first annotation operation.
2. The method of claim 1, wherein the master display receives a first annotation operation on the master display device, comprising:
and the main display controller receives touch operation acting on the main display equipment as a first annotating operation.
3. The method of claim 1, wherein the main display controller displays first annotation information for the courseware on the external video signal according to the first annotation operation, including:
The main display controller generates a first mask layer on the external video signal;
and the main display controller displays first annotation information for the courseware in the first mask according to the first annotation operation.
4. The method of claim 3, wherein the main display displays first annotation information for the courseware on the external video signal according to the first annotation operation, further comprising:
the main display controller freezes the external video signal;
and the main display controller releases the freezing of the external video signal when the first annotating operation is finished.
5. The method of claim 2, wherein the main display masks touch operations acting on the main display device from the controller.
6. The method as recited in claim 1, further comprising:
the auxiliary display controller receives a second annotation operation acting on the auxiliary display device;
and the auxiliary display controller displays second annotation information for the courseware on the external video signal according to the second annotation operation.
7. The method of claim 6, wherein the secondary display receives a second annotation operation on the secondary display device, comprising:
The secondary display receives touch operation acting on the secondary display device as a second annotation operation.
8. The method of claim 6, wherein the secondary display displays second annotation information for the courseware on the external video signal according to the second annotation operation, comprising:
the auxiliary display controller generates a second mask layer on the external video signal;
and the auxiliary display controller displays second annotation information for the courseware in the second mask according to the second annotation operation.
9. The method of claim 8, wherein the secondary display displays second annotation information for the courseware on the external video signal according to the second annotation operation, further comprising:
the auxiliary display controller freezes the external video signal;
and the auxiliary display controller releases the freezing of the external video signal when the second annotation operation is finished.
10. The method as recited in claim 7, further comprising:
the secondary display controller shields the controller from touch operation acting on the secondary display device.
11. The main display device is characterized in that the main display device is respectively connected with a pair of display devices and an electronic device, a controller, a main display controller, a signal switcher and a video distributor are arranged in the main display device, the signal switcher is respectively connected with the controller, the main display controller and the video distributor, and a pair of display controllers are arranged in the pair of display devices, wherein the main display controller is used for:
Receiving an external video signal which is transmitted by the video distributor and is derived from the electronic equipment, wherein the external video signal is used for displaying courseware;
controlling the main display equipment to play the external video signal;
transmitting an enabling signal to the signal switcher to control the signal switcher to transmit the external video signal from the video distributor to the auxiliary display controller, wherein the auxiliary display controller is used for playing the external video signal on the auxiliary display device;
receiving a first annotation operation acting on the main display device;
and displaying first annotation information for the courseware on the external video signal according to the first annotation operation.
12. The annotating system of courseware 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, a signal switcher and a video distributor are arranged in the main display device, the signal switcher is respectively connected with the controller, the main display controller and the video distributor, and the auxiliary display device is arranged in the auxiliary display device;
The main display controller is used for receiving an external video signal which is transmitted by the video distributor and is derived from the electronic equipment, and the external video signal is used for displaying courseware; controlling the main display equipment to play the external video signal; transmitting an enable signal to the signal switcher to control the signal switcher to transmit the external video signal from the video distributor to the secondary display controller;
the auxiliary display controller is used for playing the external video signal on the auxiliary display equipment;
the main display controller is further used for receiving a first annotation operation acting on the main display device; and displaying first annotation information for the courseware on the external video signal according to the first annotation operation.
13. A computer device, the computer device comprising:
one or more processors;
a memory for storing one or more programs;
the one or more programs being executable by the one or more processors to cause the one or more processors to implement a method of annotating courseware according to any of claims 1-10.
14. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements a method of annotating a courseware according to any of claims 1-10.
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