CN112580313A

CN112580313A - Courseware annotating method, system, equipment and storage medium

Info

Publication number: CN112580313A
Application number: CN201910941663.6A
Authority: CN
Inventors: 陈俊伟; 周桂安
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-03-30
Anticipated expiration: 2039-09-30
Also published as: CN112580313B

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; the main display controller converts the external video signal to obtain a first sub video signal matched with the main screen; the main display controller transmits the first sub video signal to the signal converter, and the signal converter is used for transmitting the first sub video signal to the main screen for playing; the first sub-video signal is converted into an external video signal; the main display controller controls the signal switcher to transmit the external video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the external video signal into a first sub video signal; the main display controller receives a first batch operation acting on the main display device; and the main display controller displays the first batch information on the first sub video signal aiming at the courseware according to the first batch operation. The embodiment of the invention can independently annotate the courseware in the main display device, and has strong flexibility.

Description

Courseware annotating method, system, equipment and storage medium

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 physically spliced together, the two machines still work independently respectively to independently display courseware and independently annotate the courseware, when other courseware is connected outside, the two machines are required to be connected with different electronic equipment independently respectively, the electronic equipment provides the courseware, therefore, the courseware needs to be annotated in different machines, the operation is complex, and the two machines display the courseware and annotate the courseware, so that the delay exists.

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 problems that two machines are respectively and independently connected with different electronic equipment to display courseware, the two machines independently display the courseware with delay and annotate the courseware with delay.

In a first aspect, an embodiment of the present invention provides a courseware annotating method, where a main display device is connected to an auxiliary display device and an electronic device, respectively, and the main display device is provided with a controller, a main display controller, a signal switcher, a signal converter, and a main screen; the method comprises the following steps that a secondary display controller and a secondary screen are arranged in the secondary display equipment, 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 converts the external video signal to obtain a first sub video signal matched with the main screen, wherein the first sub video signal is a screen driving signal matched with the main screen;

the main display controller transmits the first sub video signal to the signal converter, and the signal converter is used for transmitting the first sub video signal to a main screen for playing; the signal switcher is used for converting the first sub video signal into the external video signal and transmitting the external video signal to the signal switcher;

the main display controller transmits a first enabling signal to the signal switcher so as to control the signal switcher to transmit the external video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the external video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing;

the main display controller receives a first batch operation acting on the main display device;

and the main display controller displays first batch information aiming at the courseware on the first sub video signal according to the first batch 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, and the main display device is provided with a controller, a main display controller, a signal switcher, a signal converter, and a main screen; be provided with vice display controller, vice screen in vice display device, wherein, main display controller is used for:

receiving an external video signal transmitted by the electronic equipment, wherein the external video signal is used for displaying courseware;

converting the external video signal to obtain a first sub video signal matched with the main screen, wherein the first sub video signal is a screen driving signal matched with the main screen;

transmitting the first component video signal to the signal converter, wherein the signal converter is used for transmitting the first component video signal to a main screen for playing; the signal switcher is used for converting the first sub video signal into the external video signal and transmitting the external video signal to the signal switcher;

transmitting a first enabling signal to the signal switcher so as to control the signal switcher to transmit the external video signal to the secondary display controller, wherein the secondary display controller is used for converting the external video signal into a first sub video signal and transmitting the first sub video signal to the secondary screen for playing;

receiving a first batch operation acting on the main display device;

displaying first batch information for the courseware over the first partial video signal according to the first batch operation.

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 with an electronic device, and a controller, a main display controller, a signal switcher, a signal converter, and a main screen are disposed in the main display device; the auxiliary display device is provided with an auxiliary display controller and an auxiliary screen;

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; converting the external video signal to obtain a first sub video signal matched with the main screen, wherein the first sub video signal is a screen driving signal matched with the main screen; transmitting the first component video signal to the signal converter, wherein the signal converter is used for transmitting the first component video signal to a main screen for playing; the signal switcher is used for converting the first sub video signal into the external video signal and transmitting the external video signal to the signal switcher; transmitting a first enabling signal to the signal switcher so as to control the signal switcher to transmit the external video signal to the secondary display controller;

the auxiliary display controller is used for converting the external video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing;

the main display controller is also used for receiving a first batch operation acting on the main display equipment; displaying first batch information for the courseware over the first partial video signal according to the first batch operation.

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, when executed by a processor, implements 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, and the external video signal is used for displaying courseware; the main display controller converts the external video signal to obtain a first sub video signal matched with the main screen, wherein the first sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the first sub video signal to the signal converter, and the signal converter is used for transmitting the first sub video signal to the main screen for playing; the first branch video signal is converted into an external video signal, and the external video signal is transmitted to the signal switcher; the main display controller transmits the first enabling signal to the signal switcher to control the signal switcher to transmit the external video signal to the auxiliary display controller, the auxiliary display controller is used for converting the external video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen to be played, the main display controller coordinates the main display device and the auxiliary display device to play the external video signal, and the main display controller is connected with one electronic device without independently connecting two machines into different electronic devices, thereby greatly improving the convenience of operation, in addition, the main display controller and the auxiliary display controller do not need to communicate with courseware frequently, the operation simplicity is greatly improved, the courseware can be displayed on the main display equipment and the auxiliary display equipment by displaying the same branch video signal, therefore, 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 courseware display is reduced.

In addition, the main display controller receives first annotating operation acting on the main display device, displays first annotating information aiming at the courseware on the first sub-video signal according to the first annotating operation, can independently annotate the courseware in the main display device, and is high in flexibility, and time delay of annotating the courseware can be reduced due to the fact that time delay of displaying the courseware is 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 flowchart of a courseware annotating method according to an embodiment of the present invention;

fig. 3 is a flowchart of a courseware annotating method according to a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a main display device according to a third embodiment of the present invention;

fig. 5 is a schematic structural diagram of a courseware annotating system according to a fourth embodiment of the present invention;

fig. 6 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 may specifically include the following structure: the controller 110, the main display controller 120 that can convert a video signal into a screen driving signal, the signal converter 130 that can convert a screen driving signal into a video signal, the signal switch 140, the main screen 150, and the like.

The controller 110 belongs to a higher performance computing module.

For example, the controller 110 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 110 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, i.e., a screen driving signal, required by a screen in a partition driving manner. Illustratively, the video signal is a High Definition Multimedia Interface (HDMI) signal, and the screen driving signal is a video serial Interface (V-By-One, VBO) signal or a Low Voltage Differential Signaling (LVDS) signal. The VBO signal has an advantage that a Clock (CLK) is superimposed on an original data signal of the video signal and transmitted in a common mode. Compared with HDMI signals, the method can omit CLK signal lines, and has low requirements on transmission wires due to the fact that the transmission distance is shorter, and the common five-type wires are enough. The LVDS interface performs data transmission by differential, i.e., low voltage differential signal transmission, on two printed circuit board traces or a pair of balanced cables with a very low voltage swing (about 350 mV). By adopting the LVDS interface, signals can be transmitted on a differential printed circuit board or a balanced cable at the speed of hundreds of Mbit/s, and low noise and low power consumption are realized due to the adoption of a low-voltage and low-current driving mode. Generally, a display screen controller is internally provided with circuit logic for converting a video signal into a screen driving signal.

By using the cooperation between the controller 110 and the main display controller 120, the signal processing with high requirement on the operation performance, such as the annotation function, can be configured on the controller 110 with higher operation performance. Moreover, the cost of modifying the main display controller 120 itself is not increased.

Further, the master display controller 120 is provided with a first video input port 121, a second video input port 122, a signal control port 123, and a master video output port 124.

The first video input port 121 is used for connecting with an electronic device to input a video signal, wherein the video signal is from the electronic device 30. Illustratively, the video signal of the electronic device 30 may comprise a graphical user interface of the electronic device 30. The electronic device 30 may be a mobile phone, a computer, a tablet, a screen transmission device, or other terminals.

The second video input port 122 is connected to the controller 110 for inputting video signals from the controller 110. Illustratively, the video signal of the controller 110 may include a graphical user interface of an operating system running on top of the controller 110.

The first video input port 121 may expose the housing of the main display device 10, serve as a pin in the data port, connect with the electronic device 30, and input a video signal of the electronic device 30 to the main display device 10.

The signal converter 130 belongs to a converter, and can receive a driving signal, and convert the driving signal into a first signal and a second signal for outputting, where the first signal is a video signal, and the second signal is a screen driving signal. For the main display device shown in fig. 1, the signal converter 130 has an input port 131, a first output port 132, and a second output port 133, as shown in fig. 1.

The input port 131 is connected to the main video output port 124 for inputting a screen driving signal.

The first output port 132 is used for outputting a video signal.

The second output port 133 is connected to the main screen 150 for outputting a screen driving signal.

That is, specifically, the signal converter 130 is configured to convert the screen driving signal input to the input port 131 into a first signal and a second signal, where the first signal is a video signal and the second signal is a screen driving signal, and the first signal and the second signal are output from the first output port 132 and the second output port 133, respectively.

The signal switch 140 belongs to a switch (switch), and can receive at least two video signals, which can be HDMI signals, and output one of the video signals. For the main display apparatus shown in fig. 1, as shown in fig. 1, the signal switcher 140 includes a first signal input port 141, a second signal input port 142, a signal output port 143, and a control port 144.

The first signal input port 141 is connected to the first output port 132 for inputting a video signal from the video signal of the signal converter 130; the video signal of the signal converter 130 is converted from the screen driving signal output by the main display controller 120; the screen driving signal outputted by the main display controller 120 may be converted by the main display controller 120 according to the video signal inputted from the electronic device 30, or the screen driving signal outputted by the main display controller 120 may be converted by the main display controller 120 according to the video signal inputted from the controller 110, and the main display controller 120 may select the screen driving signal.

The second signal input port 142 is connected to the controller 110 for inputting a video signal from the controller 110.

The control port 144 is connected to the signal control port 123 for receiving an enable signal.

The signal output port 143 is configured to output a video signal when the control port 144 receives the enable signal.

The signal output port 143 may expose the housing of the main display device 10, serve as a pin in the data port, be connected to the sub display device 20, and input the video signal output by the controller 110 or output by the signal converter 130 to the sub display device 20.

For example, when the main display 120 transmits a low-level signal as an enable signal to the signal switch 140, the signal switch 140 outputs a video signal transmitted by the signal converter 130.

When the main display controller 120 transmits the high-level signal as an enable signal to the signal switch 140, the signal switch 140 outputs the video signal transmitted by the controller 110.

In particular, the enable signal may include a first enable signal and a second enable signal. When the control port 144 of the signal switch 140 receives a first enable signal, such as a low-level signal, the signal output port 143 outputs a video signal from the first signal input port 141; when the control port 144 of the signal switch 140 receives a second enable signal, such as a high-level signal, the signal output port 143 outputs the video signal from the second signal input port 142.

That is, it is possible to control which video signal is output by inputting an enable signal to the control port 144 of the signal switch 140. It should be noted that, among others, the video signal of the first signal input port 141, the video signal from the signal converter 130; the video signal of the signal converter 130 is converted from the screen driving signal output by the main display controller 120; the driving signal outputted from the master 120 is converted from the master 120 according to the video signal inputted from the electronic device 30, or the master 120 is converted from the video signal inputted from the controller 110. That is, when the control port 144 of the signal switch 140 receives the first enable signal, it may achieve an effect of outputting the video signal of the electronic device 30 or the video signal of the controller 110 to another display device, such as the sub-display device 20.

As shown in fig. 1, the secondary display device 20 may include a secondary display 210 that may convert a video signal into a screen driving signal, and a secondary screen 220. The sub display controller 210 is connected to the data interface of the main display device 10, and is configured to input a video signal; the sub screen 220 is connected to the sub display controller 210, and is used for inputting a screen driving signal.

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 a scanning control timing sequence, i.e., a screen driving signal, required by a screen in a partition driving manner. Illustratively, the video signal is a High Definition Multimedia Interface (HDMI) signal, and the screen driving signal is a video serial Interface (V-By-One, VBO) signal or a Low Voltage Differential Signaling (LVDS) signal. The VBO signal has an advantage that a Clock (CLK) is superimposed on an original data signal of the video signal and transmitted in a common mode. Compared with HDMI signals, the method can omit CLK signal lines, and has low requirements on transmission wires due to the fact that the transmission distance is shorter, and the common five-type wires are enough. The LVDS interface performs data transmission by differential, i.e., low voltage differential signal transmission, on two printed circuit board traces or a pair of balanced cables with a very low voltage swing (about 350 mV). By adopting the LVDS interface, signals can be transmitted on a differential printed circuit board or a balanced cable at the speed of hundreds of Mbit/s, and low noise and low power consumption are realized due to the adoption of a low-voltage and low-current driving mode. Generally, a display screen controller is internally provided with circuit logic for converting a video signal into a screen driving signal.

The hardware part of the intelligent interactive flat panel is composed of a screen (such as a main screen and a secondary screen), an intelligent processing system (including display controllers (such as a main display controller and a secondary display controller), or a controller and a display controller (such as a main display controller and a secondary display controller)), and the like, and is combined together by an integral structural member and is also supported by a special software system, wherein the screen 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.

Further, the main display device 10 may further include: a routing module (not shown) that can receive an access signal when the first video input port 121 receives a video signal.

The routing module includes: a first network port (not shown), and a second network port (not shown).

The first network port is connected to the main display controller 120, and is configured to input an access signal, where the access signal is generated when the main display controller 120 detects that the electronic device 30 is accessed, and is sent to the routing module.

The second network port is connected to the slave display controller 210 for outputting an access signal. Further, the sub display controller 210 may convert the video signal received from the main display device 10 into a driving signal according to the access signal, and send the driving signal to the sub screen 220, so as to drive the sub screen 220 to display the video signal corresponding to the driving signal.

Example one

Fig. 2 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 courseware, and the main display controller and the auxiliary display controller independently annotate the courseware, where the method may be executed by the main display device and the auxiliary display device, the main display device is connected with 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, a signal switcher, a signal converter, and a main screen; the method specifically comprises the following steps:

s201, the main display controller receives an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware.

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 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 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.

S202, the main display controller converts the external video signal to obtain a first sub video signal matched with the main screen, and the first sub video signal is matched with the screen driving signal matched with the main screen.

Specifically, in this embodiment, the main display controller can convert the external video signal into the screen driving signal after receiving the external video signal, thereby generating the first sub video signal.

Wherein, the matching of the first sub video signal with the main screen means that the main screen can play the first sub video signal.

Of course, in this embodiment, the main screen and the sub-screen may adopt the same specification of driving signals. The main display controller or the auxiliary display controller can convert the input video signal to obtain the driving signal of the same specification and the driving signal suitable for the main screen and the auxiliary screen.

S203, the main display controller transmits the first sub video signal to the signal converter, and the signal converter is used for transmitting the first sub video signal to a main screen for playing; and the signal switcher is also used for converting the first sub video signal into the external video signal and transmitting the external video signal to the signal switcher.

In this embodiment, the signal converter belongs to a converter, and may receive a driving signal, and convert the driving signal into a first signal and a second signal for outputting, where the first signal is a video signal, and the second signal is a screen driving signal. That is, after the first partial video signal is processed by the signal converter, the signal converter may output the original first partial video signal at one path and output the external video signal restored according to the first partial video signal at the other path.

The first video signal output by the signal converter can be directly transmitted to the main screen for playing. Further, frame memory can be put into to main display accuse ware by external video signal, according to the required serial display data of subregion drive mode to external video signal generation main screen and scanning control time sequence, first minute video signal promptly to transmit first minute video signal to the main screen through signal converter, main screen plays according to first minute video signal (serial display data and scanning control time sequence), thereby shows the courseware at the main screen.

And transmitting the external video signal output by the signal converter to the signal switcher.

S204, the main display controller transmits a first enabling signal to the signal switcher to control the signal switcher to transmit the external video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the external video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

In this embodiment, when the main display controller transmits the external video signal converted by the signal switch to the signal switch, the main display controller generates the first enable signal and transmits the first enable signal to the signal switch.

The signal switcher responds to the first enabling signal and outputs an external video signal from the signal converter, namely, the external video signal is output to the auxiliary display controller, and the auxiliary display controller converts the external video signal into a first sub video signal and transmits the first sub video signal to the auxiliary screen for playing. Similarly, the first component video signal is matched with the sub-screen and can be played in the sub-screen.

Further, the secondary display controller receives an external video signal from the controller, the external video signal is placed into the frame memory, serial display data and a scanning control time sequence required by a screen are generated according to the external video signal in a partition driving mode, namely a first sub video signal, and the screen plays the courseware according to the first sub video signal (the serial display data and the scanning control time sequence), so that the courseware is displayed on the screen.

S205, the main display controller receives a first batch operation acting on the main display device.

In this embodiment, the user can 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 annotation operation belongs to annotation, so called annotation, which can refer to comment and annotation in courseware during reading and is used for helping a user to master the content in the courseware.

It should be noted that the first comment information may be used for other purposes besides criticizing and annotating, for example, when the subject of a courseware is displayed on the main display device and the auxiliary display device simultaneously, the teacher may allow different students to answer the subject on the main display device and the auxiliary display device, wherein one or more students answer the subject on the main display device through the first comment operation, and in this case, the first comment information is the question-solving information, and so on, which is not limited in this embodiment.

When triggering the first wager operation, the user may select attributes of the first wager information, such as a color of the first wager information, a line width of the first wager information, and so forth.

In addition, the main display device may also provide some uniform graphics as the first comment 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 by using a finger or a touch pen in a touch manner, so that the main display controller receives the first batch 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 the first batch 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 the first batch operations 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 this example, the master display controller shields the controller from touch operations on the master 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 example, the main display controller receives, as the first annotation operation, a touch operation applied to the main display device in the annotation mode.

And S206, the main display controller displays first batch information on the first sub video signal aiming at the courseware according to the first batch operation.

In this embodiment, the master display may read the attribute of the first wager information selected in the first wager operation, such as the color of the first wager information, the line width of the first wager information, and so on.

Information having the attribute is drawn for the courseware over the first minute video signal as first comment information.

If the first betting operation is a touch operation, the information with the attribute can be drawn on the first sub video signal along the track of the touch operation as the first betting information.

In addition, a graphic having the attribute is drawn for the courseware on the first partial video signal as the first comment information, such as a straight line, a circle, an arrow, and the like, which is not limited in this embodiment.

In a specific implementation, the main display controller may freeze the first sub video signal, so-called freezing may refer to keeping receiving an external video signal from the electronic device, converting the external main video signal into the first sub video signal, and transmitting the first sub video signal to the main screen through the signal converter, where the first sub video signal has multi-frame image data, and the main screen maintains displaying image data when triggering the first comment operation, and ignores other image data.

Since the first partial video signal has a plurality of frames of image data, different image data have a difference in degree when displayed, and by freezing the first partial video signal, smoothness can be maintained when the first comment information is displayed.

Of course, the first partial video signal may not be frozen because the content difference between different image data is not large, and this embodiment is not limited thereto.

The master display controller generates a first mask layer, which may be a window, over the first component video signal, the window being positioned over the first component video signal in the operating system.

And the main display controller displays the first comment information for the courseware in the first cover layer according to the first comment operation, so that the first comment information is displayed on the first branch video signal.

And if the main display equipment exits the annotation mode, the first annotation operation is finished, and the main display controller releases the freezing of the first sub video signal when the first annotation operation is finished, namely releases the display of the image data triggering the first annotation operation, and continues to normally display other image data in the first sub video signal.

Example two

Fig. 3 is a flowchart of a courseware annotating 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 independently annotating courseware on a secondary display device, where the method specifically includes the following steps:

s301, the main display controller receives an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware.

S302, the main display controller converts the external video signal to obtain a first video signal matched with the main screen, and the first video signal is matched with the screen driving signal matched with the main screen.

S303, the main display controller transmits the first sub video signal to the signal converter, and the signal converter is used for transmitting the first sub video signal to a main screen for playing; and the signal switcher is also used for converting the first sub video signal into the external video signal and transmitting the external video signal to the signal switcher.

S304, the main display controller transmits a first enabling signal to the signal switcher to control the signal switcher to transmit the external video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the external video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

And S305, the secondary display controller receives a second annotation operation acting on the secondary display device.

In this embodiment, the user can control the secondary display device to enter the annotation mode according to the demonstration situation of the actual courseware, and trigger the secondary display device to perform the second annotation operation, so that the secondary display device displays the second annotation information.

The second annotation operation belongs to annotation, so called annotation, which can refer to comment and annotation in the courseware during reading and is used for helping the user to master the content in the courseware.

It should be noted that the second annotation information may be used for other purposes besides criticizing and annotating, for example, when the subject of the courseware is displayed simultaneously on the main display device and the auxiliary display device, the teacher may let different students answer the subject on the main display device and the auxiliary display device, wherein one or more students answer the subject through the second annotation operation on the auxiliary display device, and in this case, the second annotation information is the answer information, and so on, which is not limited in this embodiment.

When the second annotation operation is triggered, the user may select attributes of the second annotation information, such as 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 uniform graphics as the second 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, the user can operate with a finger or a touch pen in a touch manner, so that the secondary display controller receives the second annotation operation. Or, the user can also operate in a keying mode through an external device connected with the secondary display device, so that the secondary display controller receives the second annotation operation. The external device includes, but is not limited to, a mouse, etc.

In this example, the secondary display shields the controller from touch operations that are applied to the secondary display device.

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 example, the secondary display controller receives, in the annotation mode, a touch operation applied to the secondary display device as a second annotation operation.

And S306, the secondary display controller displays second annotation information on the first sub video signal aiming at the courseware according to the second annotation operation.

In this embodiment, the secondary 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.

And drawing information with the attribute for the courseware on the first sub video signal as second annotation information.

If the second annotation operation is a touch operation, the information with the attribute can be drawn on the first partial video signal along the track of the touch operation as second annotation information.

In addition, a graphic having the attribute is drawn for the courseware on the first partial video signal as the second 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, the sub display controller may freeze the first partial video signal, where the freezing may refer to keeping receiving an external video signal from the main display device, converting the external video signal into the first partial video signal, and transmitting the first partial video signal to the sub screen, where the first partial video signal has multi-frame image data, and the sub screen maintains displaying image data when triggering the second annotation operation, and ignores other image data.

Since the first partial video signal has a plurality of frames of image data, different image data have differences in display to some extent, and by freezing the first partial video signal, smoothness can be maintained in displaying the second comment information.

The secondary display generates a second mask, which may be a window, over the first component video signal, the window being positioned over the first component video signal in the operating system.

And the auxiliary display controller displays second annotation information for the courseware in the second cover layer according to the second annotation operation, so that the second annotation information is displayed on the first sub-video signal.

And if the auxiliary display equipment exits the annotating mode, the second annotating operation is finished, the auxiliary display controller releases the freezing of the first partial video signal when the second annotating operation is finished, namely releases the display of the image data triggering the second annotating operation, and continues to normally display other image data in the first partial video signal.

In this embodiment, the secondary display controller receives a second annotation operation applied to the secondary display device, displays second annotation information for the courseware on the first sub-video signal in the secondary display device according to the second annotation operation, and can independently annotate the courseware in the secondary display device, so that the flexibility is strong, and the delay of annotating the courseware can be reduced because the delay of displaying the courseware is reduced.

EXAMPLE III

Fig. 4 is a schematic structural diagram of a main display device according to a third embodiment of the present invention, the main display device is connected to a sub-display device and an electronic device, and the main display device is provided with a controller 401, a main display controller 402, a signal switcher 404, a signal converter 403, and a main screen 405; a secondary display controller and a secondary screen are arranged in the secondary display device, wherein the main display controller 402 is configured to:

converting the external video signal to obtain a first sub video signal adapted to the main screen 405, where the first sub video signal is a screen driving signal adapted to the main screen 405;

transmitting the first component video signal to the signal converter 403, the signal converter 403 being configured to transmit the first component video signal to a main screen 405 for playing; the signal switcher 404 is further configured to convert the first component video signal into the external video signal and transmit the external video signal to the external video signal;

transmitting a first enable signal to the signal switch 404 to control the signal switch 404 to transmit the external video signal to the secondary display controller, where the secondary display controller is configured to convert the external video signal into a first component video signal, and transmit the first component video signal to the secondary screen for playing;

receiving a first batch operation acting on the main display device;

In an embodiment of the present invention, the main display controller 402 is further configured to receive a touch operation applied to the main display device as a first batch operation.

In one embodiment of the present invention, the master display controller 402 is further configured to:

generating a first mask layer over the first component video signal;

and displaying first batch comment information for the courseware in the first cover layer according to the first batch comment operation.

freezing the first component video signal;

and releasing the freezing of the first partial video signal when the first batch operation is finished.

In an embodiment of the present invention, the main display controller 402 is further configured to shield the controller 401 from the touch operation acting on the main display device.

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. 5 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 510 and a sub display device 520 connected together, the main display device 510 is connected to an electronic device, and the main display device 510 is provided with a controller 511, a main display controller 512, a signal converter 513, a signal switch 514, and a main screen 515; a secondary display controller 521 and a secondary screen 522 are arranged in the secondary display device 520;

the main display controller 512 is configured to receive an external video signal transmitted by the electronic device, where the external video signal is used to display courseware; converting the external video signal to obtain a first sub video signal adapted to the main screen 515, where the first sub video signal is a screen driving signal adapted to the main screen 515; transmitting the first partial video signal to the signal converter 513, wherein the signal converter 513 is configured to transmit the first partial video signal to a main screen 515 for playing; the signal switch 514 is further configured to convert the first sub video signal into the external video signal and transmit the external video signal to the external video signal; transmitting a first enable signal to the signal switch 514 to control the signal switch 514 to transmit the external video signal to the secondary display controller 521;

the secondary display controller 521 is configured to convert the external video signal into a first sub video signal, and transmit the first sub video signal to the secondary screen 522 for playing;

the main display controller 512 is further configured to receive a first batch operation acting on the main display device 510; displaying first batch information for the courseware over the first partial video signal according to the first batch operation.

In an embodiment of the present invention, the primary display 512 is further configured to receive a touch operation applied to the primary display 510 as a first batch operation.

In one embodiment of the present invention, the master display 512 is further configured to:

generating a first mask layer over the first component video signal;

freezing the first component video signal;

In an embodiment of the present invention, the primary display controller 512 is further configured to shield the controller 511 from the touch operation of the primary display device 510.

In one embodiment of the present invention, the secondary display 521 is further configured to:

receiving a second annotation operation applied to the secondary display device 520;

and according to the second annotation operation, displaying second annotation information for the courseware on the first sub video signal.

In an embodiment of the present invention, the secondary display controller 521 is further configured to receive a touch operation applied to the secondary display device 520 as a second annotation operation.

generating a second mask layer over the first partial video signal;

and displaying second annotation information for the courseware in the second cover layer according to the second annotation operation.

freezing the first component video signal;

and releasing the freezing of the first partial video signal when the second annotation operation is finished.

In an embodiment of the present invention, the secondary display controller 521 is further configured to shield the controller 511 from touch operations applied to the secondary display device 520.

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. 6 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention. As shown in fig. 6, the computer apparatus includes a processor 600, a memory 601, a communication module 602, an input device 603, and an output device 604; the number of processors 600 in the computer device may be one or more, and one processor 600 is taken as an example in fig. 6; the processor 600, the memory 601, the communication module 602, the input device 603 and the output device 604 in the computer apparatus may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 6.

The memory 601 is used as 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 401 and the main display controller 402 in the main display device shown in fig. 4, or the controller 511, the main display controller 512, and the sub display controller 521 in the annotation system of courseware shown in fig. 5). The processor 600 executes various functional applications and data processing of the computer device by executing software programs, instructions and modules stored in the memory 601, namely, implements the courseware annotating method described above.

The memory 601 may mainly include a storage program area and a storage data area, wherein the storage program 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 601 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 601 may further include memory located remotely from processor 600, 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 602 is configured to establish a connection with the display screen and implement data interaction with the display screen. The input device 603 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

The sixth embodiment of the present invention further provides a computer-readable storage medium, wherein a computer program is stored thereon, and when the computer program is executed by a processor, the computer program implements a courseware annotating method, a main display device is respectively connected to a sub-display device and an electronic device, and a controller, a main display controller, a signal switcher, a signal converter, and a main screen are disposed in the main display device; the method comprises the following steps that a secondary display controller and a secondary screen are arranged in the secondary display equipment, and the method comprises the following steps:

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

1. A courseware annotating method is characterized in that a main display device is respectively connected with an auxiliary display device and an electronic device, and a controller, a main display controller, a signal switcher, a signal converter and a main screen are arranged in the main display device; the auxiliary display device is provided with an auxiliary display controller and an auxiliary screen; the method comprises the following steps:

2. The method of claim 1, wherein the master display receives a first batch operation for the master display device, comprising:

the main display controller receives touch operation acting on the main display equipment as first batch operation.

3. The method of claim 1, wherein the master display displays first wager information for the courseware over the first minute video signal according to the first wager operation, comprising:

the main display controller generates a first cover layer on the first sub video signal;

and the main display controller displays first batch information for the courseware in the first cover layer according to the first batch operation.

4. The method of claim 3, wherein the master display displays first wager information for the courseware over the first minute video signal according to the first wager operation, further comprising:

the main display controller freezes the first sub video signal;

and the main display controller releases the freezing of the first sub video signal when the first batch operation is finished.

5. The method of any one of claims 1-4, wherein the master display controller shields the controller from touch operations on the master display device.

6. The method of claim 1, further comprising:

the auxiliary display controller receives a second annotation operation acting on the auxiliary display equipment;

and the auxiliary display controller displays second annotation information on the first sub-video signal aiming at the courseware 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:

and the auxiliary display controller receives touch operation acting on the auxiliary display equipment as second annotation operation.

8. The method of claim 6, wherein the secondary display displays second annotation information for the courseware over the first sub video signal according to the second annotation operation, comprising:

the secondary display controller generates a second cover layer on the first sub video signal;

and the auxiliary display controller displays second annotation information for the courseware in the second cover layer according to the second annotation operation.

9. The method of claim 8, wherein the secondary display displays second annotation information for the courseware over the first sub video signal according to the second annotation operation, further comprising:

the auxiliary display controller freezes the first sub video signal;

and the auxiliary display controller releases the freezing of the first sub-video signal when the second annotation operation is finished.

10. The method according to any one of claims 6-9, further comprising:

and the auxiliary display controller shields the controller from touch operation acting on the auxiliary display equipment.

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, and a controller, a main display controller, a signal switcher, a signal converter and a main screen are arranged in the main display device; be provided with vice display controller, vice screen in vice display device, wherein, main display controller is used for:

receiving a first batch operation acting on the main display device;

12. 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, and a controller, a main display controller, a signal switcher, a signal converter and a main screen are arranged in the main display device; the auxiliary display device is provided with an auxiliary display controller and an auxiliary screen;

13. 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 1-10.

14. 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 1-10.