CN112579022B - Courseware display method, system, equipment and storage medium - Google Patents
Courseware display method, system, equipment and storage medium Download PDFInfo
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- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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Abstract
The embodiment of the invention discloses a courseware display method, a system, equipment and a storage medium, wherein a main display device is provided with a controller, a main display controller and a signal switcher, and an auxiliary display device is provided with an auxiliary display controller, and the method comprises the following steps: the controller determines courseware, and generates a first main video signal and a second main video signal according to the courseware; the controller transmits the first main video signal to a main display controller, and the main display controller is used for controlling the main display equipment to play the first main video signal; the controller transmits the second main video signal to the signal switcher so as to transmit the second main video signal to the auxiliary display controller when the signal switcher receives the enabling signal of the main display controller, and the auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal. The controller manages courseware, and the courseware can be displayed by displaying the first main video signal and the second main video signal, so that the real-time performance of the main display equipment and the auxiliary display equipment for displaying courseware is ensured, and the time delay for displaying courseware is reduced.
Description
Technical Field
The embodiment of the invention relates to education technology, in particular to a courseware display 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 respectively and display courseware independently, the two machines need to communicate the courseware frequently in order to ensure the display synchronization of the courseware, the operation is complex, and the time delay exists in the display courseware of the two machines.
Disclosure of Invention
The embodiment of the invention provides a courseware display method, a system, equipment and a storage medium, which are used for solving the problem that two machines independently display courseware and have time delay.
In a first aspect, an embodiment of the present invention provides a method for displaying courseware, where a primary display device is connected to a secondary display device, where a controller, a primary display controller, and a signal switcher are disposed in the primary display device, and a secondary display controller is disposed in the secondary display device, where the method includes:
The controller determines courseware, and generates a first main video signal and a second main video signal according to the courseware;
the controller transmits the first main video signal to the main display controller, and the main display controller is used for controlling the main display device to play the first main video signal;
the controller transmits the second main video signal to the signal switcher, so that when the signal switcher receives the enabling signal of the main display controller, the second main video signal is transmitted to the auxiliary display controller, and the auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal.
In a second aspect, an embodiment of the present invention further provides a primary display device, where the primary display device is connected to a secondary display device, a controller, a primary display controller, and a signal switcher are provided in the primary display device, and a secondary display controller is provided in the secondary display device, where the controller is configured to:
determining courseware, and generating a first main video signal and a second main video signal according to the courseware;
transmitting the first main video signal to the main display controller, wherein the main display controller is used for controlling the main display equipment to play the first main video signal;
And transmitting the second main video signal to the signal switcher so as to transmit the second main video signal to the auxiliary display controller when the signal switcher receives the enabling signal of the main display controller, wherein the auxiliary display controller is used for controlling the auxiliary display equipment to play the second main video signal.
In a third aspect, an embodiment of the present invention further provides a display system for courseware, where the system includes a main display device and an auxiliary display device connected to each other, where the main display device is provided with a controller, a main display controller, and a signal switcher, and the auxiliary display device is provided with an auxiliary display controller;
the controller is used for determining courseware, generating a first main video signal and a second main video signal according to the courseware, and transmitting the first main video signal to the main display controller;
the main display controller is used for controlling the main display device to play the first main video signal;
the controller is further configured to transmit the second main video signal to the signal switcher;
the main controller is further configured to transmit an enable signal to the signal switcher to control the signal switcher to transmit the second main video signal to the auxiliary display controller;
The auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal.
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;
when the one or more programs are executed by the one or more processors, the one or more processors implement the method for displaying courseware according to 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 a method for displaying courseware according to the first aspect.
In this embodiment, the controller determines courseware, and generates a first main video signal and a second main video signal according to the courseware, on one hand, the first main video signal is transmitted to the main display controller, the main display controller is used for controlling the main display device to play the first main video signal, on the other hand, the controller transmits the second main video signal to the signal switcher, when receiving the enabling signal of the main display controller, the second main video signal is transmitted to the auxiliary display controller, the auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal, the courseware is managed by the controller in a unified way, the main display controller and the auxiliary display controller do not need to communicate frequently about the courseware, so that the simplicity of operation is greatly improved, the first main video signal and the second main video signal can be displayed, the real-time performance of the courseware displayed by the main display device and the auxiliary display device is ensured, and the time delay of the courseware is reduced.
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 flowchart of a courseware display method according to a first embodiment of the present invention;
fig. 4 is a flowchart of a courseware display method according to a second embodiment of the present invention;
fig. 5 is a flowchart of a courseware display method according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a main display device according to a fourth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a courseware display system according to a fifth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a computer device according to a sixth 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.
In general, as shown in fig. 1, the main display device 10 has a screen (not shown), a controller 110, a main display controller 120, a signal switcher 130, 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 811 SOC (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.
For the main display device shown in fig. 1, as shown in fig. 2, the signal switcher 130 has a first video input interface 133, a second video input interface 134, a control interface 132, and a video output interface 131.
The first video input interface 133 is connected to the controller 110, and 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 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 high level signal as an enable signal to the signal switch 130, the signal switch 130 outputs a video signal transmitted by the controller 110.
When the main display controller 120 transmits a low level signal as an enable signal to the signal switch 130, the signal switch 130 outputs a video 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.
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 811 SOC, 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. 3 is a flowchart of a display method of courseware provided in a first embodiment of the present invention, where the embodiment is applicable to a case where a controller of a main display device controls a main display device and a sub display device to display courseware, and the method may be performed by the main display device and the sub display device, where the main display device and the sub display device may be implemented by software and/or hardware, and the main display device is provided with the controller, the main display device and the signal switcher, and the sub display device is provided with the sub display device, and the method specifically includes the following steps:
s301, the controller determines courseware, and generates a first main video signal and a second main video signal according to the courseware.
In this embodiment, the user may adjust the display setting of the controller to "copy the desktops of the primary display device and the secondary display device", and at this time, the controller may control the primary display device and the secondary display device to display the same courseware, so as to implement dual-screen cloning.
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 (PortableDocument 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 controller may determine a courseware, and use the courseware to generate a first main video signal and a second main video signal with the same content.
The first main video signal and the second main video signal belong to video signals, such as HDMI signals.
In one manner of generating the first main video signal and the second main video signal, a storage device is connected to the main display device, where the storage device is a device for storing data, such as a usb disk.
In this manner, the controller may read courseware from the storage device and store the courseware in a local cache.
At this time, the controller may call an application adapted to the format of the courseware, and open the courseware, and at this time, the courseware is displayed on a desktop, and the desktop data is converted into two paths of video signals, so as to generate a first main video signal and a second main video signal, where the first main video signal and the second main video signal are both used for displaying the courseware.
Of course, the above-mentioned manner of generating the first main video signal and the second main video signal is merely an example, and in implementing the present embodiment, other manners of generating the first main video signal and the second main video signal may be set according to actual situations, for example, downloading a courseware from the cloud and generating the first main video signal and the second main video signal according to the courseware, etc., which is not limited in the embodiments of the present invention. In addition to the above-described modes of generating the first main video signal and the second main video signal, those skilled in the art may also adopt other modes of generating the first main video signal and the second main video signal according to actual needs, and the present embodiment is not limited thereto.
S302, the controller transmits the first main video signal to the main display controller.
In this embodiment, the controller outputs the first main video signal to the main display controller, and the main display controller is configured to control the main display device to play the first main video signal.
Further, the main display controller receives the first main video signal from the controller, puts the first main video signal into the frame memory, generates serial display data and scanning control time sequence required by the screen aiming at the first main 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.
S303, the controller transmits the second main video signal to the signal switcher so as to transmit the second main video signal to the auxiliary display controller when the signal switcher receives the enabling signal of the main display controller.
In this embodiment, the controller outputs the second main video signal to the signal switcher while the controller notifies the main display controller that the display at that time is set to "copy the desktops of the main display device and the sub display device", the main display controller generates the enable signal in response to the setting, and transmits the enable signal to the signal switcher.
The signal switcher outputs a video signal from the controller in response to the enable signal, namely, outputs a second main video signal to the auxiliary display controller, and the auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal.
Further, the secondary display controller receives the second main video signal from the controller, puts the second main video signal into the frame memory, generates serial display data and scanning control time sequence required by the screen for the second main video signal according to the 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.
In this embodiment, the controller determines courseware, and generates a first main video signal and a second main video signal according to the courseware, on one hand, the first main video signal is transmitted to the main display controller, the main display controller is used for controlling the main display device to play the first main video signal, on the other hand, the controller transmits the second main video signal to the signal switcher, when receiving the enabling signal of the main display controller, the second main video signal is transmitted to the auxiliary display controller, the auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal, the courseware is managed by the controller in a unified way, the main display controller and the auxiliary display controller do not need to communicate frequently about the courseware, so that the simplicity of operation is greatly improved, the first main video signal and the second main video signal can be displayed, the real-time performance of the courseware displayed by the main display device and the auxiliary display device is ensured, and the time delay of the courseware is reduced.
Example two
Fig. 4 is a flowchart of a courseware display method according to a second embodiment of the present invention, where the present embodiment is based on the foregoing embodiment, and further adds a processing operation for operating the courseware on a main display device, and the method specifically includes the following steps:
s401, the controller determines courseware, and generates a first main video signal and a second main video signal according to the courseware.
S402, the controller transmits the first main video signal to the main display controller.
The main display controller is used for controlling the main display device to play the first main video signal.
S403, the controller transmits the second main video signal to the signal switcher so as to transmit the second main video signal to the auxiliary display controller when the signal switcher receives the enabling signal of the main display controller.
The auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal.
S404, the controller receives touch operation acting on the main display device.
S405, the controller operates the courseware according to the touch operation.
In this embodiment, the main display shields the touch operation applied to the main display device.
The shielding may mean that the main display may receive the touch operation, but ignores the touch operation, or may mean that the touch operation is transmitted to the controller without being transmitted to the main display, which is not limited in this embodiment.
The user can trigger touch operation on the screen of the main display device by using a finger or a touch pen according to the demonstration condition of the actual courseware, and the touch operation is transmitted to the controller.
And the controller responds to touch operation on the main display equipment to operate courseware.
Further, in the main display device, the touch operation may be transmitted through a standard USB protocol, and a USB switcher is disposed in the main display device, where the USB switcher is respectively connected with the controller and the main display device, and after the screen of the main display device generates the touch operation, the touch operation is sent to the USB switcher, and the USB switcher may respectively distribute the touch operation to the controller and the main display device, and the main display device may send an enable signal to the USB switcher, so as to control the USB switcher 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, and after the controller receives the touch operation, the controller does not determine whether to respond to the touch operation, but directly responds to the touch operation, so as to reduce the logic coincidence between the controller and the main display, thereby reducing the coupling between the controller and the main display.
In this embodiment, the main display may send an enable signal to the USB switch to control the USB switch to output the touch operation to the controller, where the touch operation is not received by the main display, or the enable signal is simultaneously output to the controller and the main display, where the touch operation is ignored by the main display.
In a particular implementation, courseware includes pages, each with elements in it, such as text, pictures, video, etc.
The touch operation may be used to operate on a page, such as adding a new page, deleting an original page, turning a page (including turning a previous page, turning a next page), and so forth.
The touch operation may also be used to operate on elements in the page, such as adding new elements, deleting original elements, modifying original elements (e.g., dragging, rotating, scaling, changing properties (e.g., color, font type), etc.), and so on.
In one case, the touch operation may refer to data of touch points including one or more of the number of touch points, the state of the touch points, coordinates of the touch points, and pressure values of the touch points.
The coordinates of the touch point include a horizontal axis coordinate x and a vertical axis coordinate y.
If the screen of the main display device and the screen of the auxiliary display device have different resolutions, the coordinates of the touch points on the screen of the main display device can be mapped into a unified screen to unify the coordinates, so that courseware can be conveniently operated, namely, linear scaling and offset are carried out according to the size of the touch points on the screen of the main display device, and the matching of the touch position and the display position is realized.
For example, when the resolution of the screen of the main display device is 1000×500 and the resolution of the unified screen is 500×500, when the screen of the main display device displays courseware, the display area of the main display device is 500×500 in the middle of the screen, two black edges of 250×500 will appear on two sides of the screen, and the vertex of the upper left corner of the touch display end is taken as the origin of coordinates, if the current touch point is at the coordinates of the touch display end (250,0), the actual clicking position corresponds to the (0, 0) point of the unified screen.
If the screen of the main display device is the same as the screen of the sub display device in resolution, the coordinates of the touch point may be directly used.
In another case, the touch operation may refer to a touch event, also known as a touch gesture, a swipe gesture, etc., such as a double click, a swipe to the left, a swipe to the right, etc.
In this case, the main display device may encapsulate the data of the touch point as a touch event to map as a function commonly used for courseware, such as mapping left swipe to flip the previous page, mapping right swipe to flip the next page, etc., thereby reducing the amount of computation of the data of the touch point by the controller.
Furthermore, the main display device converts the data of the touch point into a touch event, the touch event can be packaged by adopting a keyboard protocol and then sent to the controller, the key event is directly sent to the controller by a USB HID keyboard mode, and the controller directly executes the operation corresponding to the key event.
After the controller operates courseware, the first main video signal and the second main video signal are correspondingly updated, and the operations on the main display device and the auxiliary display device are synchronously displayed in the main display device and the auxiliary display device.
In this embodiment, the controller receives the touch operation acting on the main display device, operates courseware according to the touch operation, and under the condition that the main display device is far away from the auxiliary display device, the controller facilitates the user to operate the courseware near the main display device, and synchronously displays the user operation on the courseware on the auxiliary display device, so that the practicality is strong.
Example III
Fig. 5 is a flowchart of a courseware display method according to a third embodiment of the present invention, where the present embodiment is based on the foregoing embodiment, and further adds a processing operation for operating the courseware on the secondary display device, and the method specifically includes the following steps:
s501, the controller determines courseware, and generates a first main video signal and a second main video signal according to the courseware.
S502, the controller transmits the first main video signal to the main display controller.
The main display controller is used for controlling the main display device to play the first main video signal.
S503, the controller transmits the second main video signal to the signal switcher, so that the second main video signal is transmitted to the auxiliary display controller when the signal switcher receives the enabling signal of the main display controller.
The auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal.
S504, the controller receives touch operation on the auxiliary display device.
S505, the controller operates the courseware according to the touch operation.
In this embodiment, the sub-display shields the touch operation that acts on the sub-display device.
The shielding may mean that the secondary display may receive the touch operation, but ignores the touch operation, or may mean that the touch operation is transmitted to the controller without being transmitted to the secondary display, which is not limited in this embodiment.
The user can trigger touch operation on the screen of the auxiliary display device by using a finger or a touch pen according to the demonstration condition of the actual courseware, and the touch operation is transmitted to the controller through the data port of the auxiliary display device and the data port of the main display device.
The controller operates courseware in response to a touch operation on the secondary display device.
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 respectively connected to the secondary display device and a data port of the secondary display device, after the screen of the secondary display device generates the touch operation, the touch operation is sent to the USB switch, and the USB switch may distribute the touch operation to the secondary display device, or, through the data port of the secondary display device, 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, so as to reduce the logic coincidence between the controller and the auxiliary display, and further reduce the coupling between the controller and the auxiliary display.
In this embodiment, the auxiliary display may send an enable signal to the USB switch to control the USB switch to output the touch operation to the controller, where the auxiliary display does not receive the touch operation, or simultaneously outputs the touch operation to the controller and the auxiliary display, where the auxiliary display ignores the touch operation.
In a particular implementation, courseware includes pages, each with elements in it, such as text, pictures, video, etc.
The touch operation may be used to operate on a page, such as adding a new page, deleting an original page, turning a page (including turning a previous page, turning a next page), and so forth.
The touch operation may also be used to operate on elements in the page, such as adding new elements, deleting original elements, modifying original elements (e.g., dragging, rotating, scaling, changing properties (e.g., color, font type), etc.), and so on.
Further, the touch operation may refer to data of touch points including one or more of the number of touch points, the state of the touch points, coordinates of the touch points, and pressure values of the touch points.
The coordinates of the touch point include a horizontal axis coordinate x and a vertical axis coordinate y.
If the screen of the main display device and the screen of the auxiliary display device have different resolutions, the coordinates of the touch points on the screen of the auxiliary display device can be mapped into a unified screen to unify the coordinates, so that courseware can be conveniently operated, namely, linear scaling and offset are carried out according to the size of the touch points on the auxiliary display device, and the matching of the touch position and the display position is realized.
For example, when the resolution of the screen of the secondary display device is 1000×500 and the resolution of the unified screen is 500×500, when the screen of the secondary display device displays a courseware, the display area of the secondary display device is 500×500 in the middle of the screen, two black edges of 250×500 will appear on two sides of the screen, and the vertex of the upper left corner of the touch display end is taken as the origin of coordinates, if the current touch point is at the coordinates of the touch display end (250,0), the actual clicking position corresponds to the (0, 0) point of the unified screen.
If the screen of the main display device is the same as the screen of the sub display device in resolution, the coordinates of the touch point may be directly used.
After the controller operates courseware, the first main video signal and the second main video signal are correspondingly updated, and the operations on the auxiliary display equipment are synchronously displayed in the main display equipment and the auxiliary display equipment.
In this embodiment, the controller receives the touch operation acting on the secondary display device, operates courseware according to the touch operation, and under the condition that the primary display device is far away from the secondary display device, the controller facilitates the user to operate the courseware nearby the secondary display device, and synchronously displays the user operation on the courseware on the secondary display device, so that the practicality is strong.
Example IV
Fig. 6 is a schematic structural diagram of a main display device according to a fourth embodiment of the present invention, where the main display device is connected to a secondary display device, a controller 601, a main display controller 602, and a signal switcher 603 are disposed in the main display device, and a secondary display controller is disposed in the secondary display device, where the controller 601 is configured to:
determining courseware, and generating a first main video signal and a second main video signal according to the courseware;
Transmitting the first main video signal to the main display controller, wherein the main display controller is used for controlling the main display equipment to play the first main video signal;
and transmitting the second main video signal to the signal switcher so as to transmit the second main video signal to the auxiliary display controller when the signal switcher receives the enabling signal of the main display controller, wherein the auxiliary display controller is used for controlling the auxiliary display equipment to play the second main video signal.
In one embodiment of the present invention, a storage device is connected to the main display device, and the controller 601 is further configured to:
reading courseware from the storage device;
and generating a first main video signal and a second main video signal, wherein the first main video signal and the second main video signal are used for displaying the courseware.
In one embodiment of the invention, the main display shields touch operations applied to the main display device.
In one embodiment of the present invention, the controller 601 is further configured to:
receiving touch operation acted on the main display equipment;
and operating the courseware according to the touch operation.
In one embodiment of the invention, the secondary display shields touch operations acting on the secondary display device.
In one embodiment of the present invention, the controller 601 is further configured to:
receiving touch operation acting on the auxiliary display device;
and operating the courseware according to the touch operation.
The main display device provided by the embodiment of the invention can execute the courseware display method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example five
Fig. 7 is a schematic structural diagram of a courseware display system according to a fifth embodiment of the present invention, where the system includes a main display device 710 and a sub display device 720 connected to each other, a controller 711, a main display controller 712, and a signal switcher 713 are disposed in the main display device 710, and a sub display controller 721 is disposed in the sub display device 720;
the controller 711 is configured to determine a courseware, generate a first main video signal and a second main video signal according to the courseware, and transmit the first main video signal to the main display controller;
the main display controller 712 is configured to control the main display device to play the first main video signal;
the controller 711 is further configured to transmit the second main video signal to the signal switcher;
The main controller 712 is further configured to transmit an enable signal to the signal switcher to control the signal switcher to transmit the second main video signal to the sub-display controller;
the secondary display controller 721 is configured to control the secondary display device to play the second main video signal.
In one embodiment of the present invention, a storage device is connected to the main display device, and the controller 711 is further configured to:
reading courseware from the storage device;
and generating a first main video signal and a second main video signal, wherein the first main video signal and the second main video signal are used for displaying the courseware.
In one embodiment of the present invention, the main display 712 is further configured to shield touch operations applied to the main display device.
In one embodiment of the present invention, the controller 711 is further configured to:
receiving touch operation acted on the main display equipment;
and operating the courseware according to the touch operation.
In one embodiment of the present invention, the secondary display 721 is further used to shield the touch operation on the secondary display device.
In one embodiment of the present invention, the controller 711 is further configured to:
Receiving touch operation acting on the auxiliary display device;
and operating the courseware according to the touch operation.
The courseware display system provided by the embodiment of the invention can execute the courseware display method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example six
Fig. 8 is a schematic structural diagram of a computer device according to a sixth 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 can be used to store a software program, a computer-executable program, and modules such as modules corresponding to the display method of a courseware in this embodiment (for example, a controller 601 in a main display device as shown in fig. 6, or a controller 711, a main display controller 712, and a sub-display controller 721 in the display system of a courseware as shown in fig. 7). The processor 800 executes various functional applications of the computer device and data processing, that is, implements the above-described courseware display method, 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 device provided in this embodiment may execute the courseware display method provided in any one of the embodiments of the present invention, and specifically, the corresponding functions and beneficial effects.
Example seven
The seventh embodiment of the present invention further provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method for displaying courseware, a main display device connected to a sub display device, a controller, a main display controller, and a signal switcher being provided in the main display device, and a sub display controller being provided in the sub display device, the method comprising:
the controller determines courseware, and generates a first main video signal and a second main video signal according to the courseware;
the controller transmits the first main video signal to the main display controller, and the main display controller is used for controlling the main display device to play the first main video signal;
the controller transmits the second main video signal to the signal switcher, so that when the signal switcher receives the enabling signal of the main display controller, the second main video signal is transmitted to the auxiliary display controller, and the auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal.
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 related operations in the courseware display method provided by any of the embodiments 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 display system of the main display device or courseware described above, each unit and module included are only divided according to the functional logic, but not limited to the above division, so long as the corresponding functions can be implemented; 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 (10)
1. A courseware display method, characterized in that a main display device is connected with an auxiliary display device, a controller, a main display controller and a signal switcher are arranged in the main display device, and an auxiliary display controller is arranged in the auxiliary display device, the method comprises:
the controller determines courseware, and generates a first main video signal and a second main video signal according to the courseware;
the controller transmits the first main video signal to the main display controller, and the main display controller is used for controlling the main display device to play the first main video signal; the main display controller receives a first main video signal from the controller, the first main video signal is put into a frame memory, serial display data and a scanning control time sequence required by a screen are generated for the first main video signal according to a partition driving mode, and the screen is played according to the serial display data and the scanning control time sequence;
The controller transmits the second main video signal to the signal switcher so as to transmit the second main video signal to the auxiliary display controller when the signal switcher receives an enabling signal of the main display controller, wherein the auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal; the auxiliary display controller receives a second main video signal from the controller, the second main video signal is placed into the frame memory, serial display data and a scanning control time sequence required by a screen are generated for the second main video signal according to a partition driving mode, and the screen is played according to the serial display data and the scanning control time sequence.
2. The method of claim 1, wherein a storage device is connected to the primary display device, wherein the controller determines courseware from which to generate the first primary video signal and the second primary video signal, and wherein the controller comprises:
the controller reads courseware from the storage device;
the controller generates a first main video signal and a second main video signal, and the first main video signal and the second main video signal are used for displaying the courseware.
3. The method of claim 1, wherein the primary display masks touch operations acting on the primary display device.
4. A method according to claim 1 or 2 or 3, further comprising:
the controller receives touch operation acting on the main display device;
and the controller operates the courseware according to the touch operation.
5. The method of claim 1, wherein the secondary display shields touch operations acting on the secondary display device.
6. The method of claim 1 or 2 or 5, further comprising:
the controller receives touch operation acting on the auxiliary display device;
and the controller operates the courseware according to the touch operation.
7. The main display device is characterized in that the main display device is connected with a pair of display devices, a controller, a main display controller and a signal switcher are arranged in the main display device, and a pair of display controllers are arranged in the pair of display devices, wherein the controller is used for:
determining courseware, and generating a first main video signal and a second main video signal according to the courseware;
transmitting the first main video signal to the main display controller, wherein the main display controller is used for controlling the main display equipment to play the first main video signal; the main display controller receives a first main video signal from the controller, the first main video signal is put into a frame memory, serial display data and a scanning control time sequence required by a screen are generated for the first main video signal according to a partition driving mode, and the screen is played according to the serial display data and the scanning control time sequence;
Transmitting the second main video signal to the signal switcher, so that when the signal switcher receives an enabling signal of the main display controller, the second main video signal is transmitted to the auxiliary display controller, and the auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal; the auxiliary display controller receives a second main video signal from the controller, the second main video signal is placed into the frame memory, serial display data and a scanning control time sequence required by a screen are generated for the second main video signal according to a partition driving mode, and the screen is played according to the serial display data and the scanning control time sequence.
8. The courseware display system is characterized by comprising a main display device and an auxiliary display device which are connected, wherein a controller, a main display controller and a signal switcher are arranged in the main display device, and an auxiliary display controller is arranged in the auxiliary display device;
the controller is used for determining courseware, generating a first main video signal and a second main video signal according to the courseware, and transmitting the first main video signal to the main display controller;
the main display controller is used for controlling the main display device to play the first main video signal; the main display controller receives a first main video signal from the controller, the first main video signal is put into a frame memory, serial display data and a scanning control time sequence required by a screen are generated for the first main video signal according to a partition driving mode, and the screen is played according to the serial display data and the scanning control time sequence;
The controller is further configured to transmit the second main video signal to the signal switcher;
the main controller is further configured to transmit an enable signal to the signal switcher to control the signal switcher to transmit the second main video signal to the auxiliary display controller;
the auxiliary display controller is used for controlling the auxiliary display device to play the second main video signal; the auxiliary display controller receives a second main video signal from the controller, the second main video signal is placed into the frame memory, serial display data and a scanning control time sequence required by a screen are generated for the second main video signal according to a partition driving mode, and the screen is played according to the serial display data and the scanning control time sequence.
9. A computer device, the computer device comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, causes the one or more processors to implement a method of displaying courseware as claimed in any one of claims 1 to 6.
10. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements a method of displaying courseware according to any one of claims 1-6.
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