CN112306342B - Large-screen and small-screen display mutual switching method and device, storage medium and electronic whiteboard - Google Patents
Large-screen and small-screen display mutual switching method and device, storage medium and electronic whiteboard Download PDFInfo
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- CN112306342B CN112306342B CN202011099170.1A CN202011099170A CN112306342B CN 112306342 B CN112306342 B CN 112306342B CN 202011099170 A CN202011099170 A CN 202011099170A CN 112306342 B CN112306342 B CN 112306342B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
Abstract
The invention discloses a method and a device for switching large-screen and small-screen displays of an electronic whiteboard mutually, a storage medium and the electronic whiteboard; wherein the method comprises the following steps: starting a user gesture detection program on a screen display interface of the electronic whiteboard based on a user calling instruction, and detecting current gesture information of a user; judging whether the detected gesture information is switching gesture information for calling a large screen and a small screen of a screen display interface of the electronic whiteboard; if so, obtaining the sliding distance, the sliding direction and the sliding duration information of the gesture information; and switching a large screen or a small screen on the display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction and the sliding duration information of the gesture information. According to the embodiment of the invention, the user can write on the screen at any position without adjusting the position of the user on the screen, so that the operation convenience of the user is improved, the teaching efficiency applied to teaching scenes is improved, and the communication quality applied to business scenes such as conferences and the like is improved.
Description
Technical Field
The invention relates to the technical field of screen display of all-in-one machine equipment, in particular to a method and a device for switching large-screen display and small-screen display of an electronic whiteboard, a storage medium and the electronic whiteboard.
Background
Most of the display screens currently adopted in the market of commercial all-in-one machines are 65 inches, 75 inches, 86 inches and above. Therefore, as a user writes on a large screen, the user often needs to go to the other side of the display screen or needs to lower the shelf on which the screen is placed, so as to annotate at the other end of the screen or place where the user needs to explain. The electronic whiteboard can not be conveniently written at each position of the screen, and as a user, the electronic whiteboard can not be independently operated at one side of the screen, so that great operation difficulty is brought to the teaching of the electronic whiteboard and the writing of a conference scene. The teaching efficiency is reduced, and the communication quality is reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a method, a device, a storage medium and an electronic whiteboard for switching large-screen display and small-screen display of the electronic whiteboard, so that a user can write on a screen at any position without adjusting the position of the screen, and the operation convenience of the user is improved.
In order to solve the above technical problem, an embodiment of the present invention provides a method for switching large-screen and small-screen displays of an electronic whiteboard, where the method includes:
starting a user gesture detection program on a screen display interface of the electronic whiteboard based on a user calling instruction, and detecting current gesture information of a user;
judging whether the detected gesture information is switching gesture information for calling a large screen and a small screen of a screen display interface of the electronic whiteboard;
if so, obtaining the sliding distance, the sliding direction and the sliding duration information of the gesture information;
and switching a large screen or a small screen on the display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction and the sliding duration information of the gesture information.
Optionally, the detecting current gesture information of the user includes:
and after the electronic whiteboard starts a user gesture detection program, detecting current gesture information of the contact sliding operation of the hand of the user and the screen.
Optionally, the detecting current gesture information of the user hand and the screen contact sliding operation includes:
detecting current gesture information of a user hand which is in contact with the screen and is operated in a horizontal sliding mode at the bottom of the screen; or the like, or, alternatively,
and detecting current gesture information of the user hand which is in contact with the screen and slides up and down on two sides of the screen.
Optionally, the gesture information includes contact area, contact position, sliding distance, sliding direction and sliding duration information of the user hand and the screen.
Optionally, the determining whether the detected gesture information is the switching gesture information of a large screen and a small screen for calling a display interface of the electronic whiteboard screen includes:
and judging whether the gesture information is switching gesture information of a large screen and a small screen for calling a display interface of the electronic whiteboard screen or not based on the contact area, the contact position and the sliding speed of the user hand and the screen in the gesture information.
Optionally, the sliding speed is obtained by calculating according to the sliding distance and the sliding duration information in the gesture information.
Optionally, the switching of the large screen or the small screen of the display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction, and the sliding duration information of the gesture information includes:
determining to switch the large screen or the small screen of the screen display interface of the electronic whiteboard based on the sliding direction in the gesture information;
when the operation of switching the large screen and the small screen of the electronic whiteboard screen display interface is determined, the width of the switched display interface is the width of the screen minus the sliding speed and the preset dynamic coefficient, the height of the switched display interface is the height of the screen minus the sliding speed and the preset dynamic coefficient, and the moving direction of the electronic whiteboard screen display interface is the sliding direction of the gesture information during switching;
when the operation of switching the small screen and the large screen of the electronic whiteboard screen display interface is determined, the width of the switched display interface is the width of the current display interface plus the sliding speed and a preset dynamic coefficient, the height of the switched display interface is the height of the current display interface plus the sliding speed and the preset dynamic coefficient, and the moving direction of the electronic whiteboard screen display interface is the sliding direction of the gesture information during switching;
the size of the switched display interface is larger than or equal to one half of the display screen and smaller than or equal to the display screen.
In addition, an embodiment of the present invention further provides a large-screen and small-screen display switching device for an electronic whiteboard, where the device includes:
the starting and detecting module: the system comprises a screen display interface, a user gesture detection program and a gesture recognition program, wherein the screen display interface is used for starting the user gesture detection program on the screen display interface of the electronic whiteboard based on a user calling instruction and detecting the current gesture information of a user;
a judging module: the electronic whiteboard screen switching system is used for judging whether the detected gesture information is switching gesture information for calling a large screen and a small screen of a display interface of the electronic whiteboard screen;
an information acquisition module: the electronic whiteboard screen display interface switching device is used for acquiring the sliding distance, the sliding direction and the sliding duration information of the gesture information if the detected gesture information is the switching gesture information for calling a large screen and a small screen of the electronic whiteboard screen display interface;
a switching module: and the electronic whiteboard screen switching module is used for switching a large screen or a small screen on the display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction and the sliding duration information of the gesture information.
In addition, 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 any one of the above-mentioned large-screen and small-screen display mutual switching methods.
In addition, an embodiment of the present invention further provides an electronic whiteboard, which includes:
one or more processors;
a memory;
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to: and executing the large-screen and small-screen display mutual switching method.
In the embodiment of the invention, by detecting the gesture operation of the user, the user can write on the screen at any position without adjusting the position of the user on the screen, so that the operation convenience of the user is improved, the teaching efficiency applied to teaching scenes is improved, and the communication quality applied to business scenes such as conferences and the like is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for switching large-screen and small-screen displays of an electronic whiteboard in an embodiment of the present invention;
fig. 2 is a schematic structural composition diagram of a large-screen small-screen display interchange switching device of an electronic whiteboard in the embodiment of the present invention;
fig. 3 is a schematic structural component diagram of the electronic whiteboard in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, fig. 1 is a schematic flow chart of a method for switching between large-screen display and small-screen display of an electronic whiteboard according to an embodiment of the present invention.
As shown in fig. 1, a method for switching large-screen and small-screen displays of an electronic whiteboard from one to another includes:
s11: starting a user gesture detection program on a screen display interface of the electronic whiteboard based on a user calling instruction, and detecting current gesture information of a user;
in a specific implementation process of the present invention, the detecting current gesture information of the user includes: and after the electronic whiteboard starts a user gesture detection program, detecting current gesture information of the contact sliding operation of the hand of the user and the screen.
Further, the detecting current gesture information of the sliding operation of the hand of the user contacting the screen comprises: detecting current gesture information of a user hand which is in contact with the screen and is operated by sliding horizontally at the bottom of the screen; or detecting the current gesture information of the user hand which is in contact with the screen and slides up and down on two sides of the screen.
Specifically, when the electronic whiteboard is started, a user gesture detection program is automatically called to start the user gesture detection program on a screen display interface of the electronic whiteboard according to a user calling instruction, or when the user needs to use the electronic whiteboard, the user gesture detection program starts the user gesture detection program on the screen display interface of the electronic whiteboard according to the user calling instruction of the user, and after the user gesture detection program is started on the electronic whiteboard, the user gesture detection program detects current gesture information of the contact sliding operation between the hand of the user and the screen in real time, so that the current gesture information is obtained.
S12: judging whether the detected gesture information is switching gesture information for calling a large screen and a small screen of a screen display interface of the electronic whiteboard;
in a specific implementation process of the present invention, the determining whether the detected gesture information is a switching gesture information for calling a large screen and a small screen of a display interface of an electronic whiteboard includes: and judging whether the gesture information is switching gesture information of a large screen and a small screen for calling a display interface of the electronic whiteboard screen or not based on the contact area, the contact position and the sliding speed of the user hand and the screen in the gesture information.
Further, the sliding speed is obtained by calculating according to the sliding distance and the sliding duration information in the gesture information.
Specifically, when judging whether the gesture information is switching gesture information for calling a large screen and a small screen of a screen display interface of the electronic whiteboard, judging whether the contact area, the contact position and the sliding speed of the hand of the user and the screen simultaneously reach or exceed preset values, wherein the preset contact area between the hand of the user and the screen is 50-by-50 pixels; the preset contact position is 1/5 position of the user part placed on the bottom frame or the left frame or the right frame of the screen; the preset sliding speed is within 1000ms, and the displacement distance of the hand on the screen exceeds 600 PX; and the sliding speed is obtained by calculation according to the sliding distance and the sliding duration information in the gesture information.
S13: if so, obtaining the sliding distance, the sliding direction and the sliding duration information of the gesture information;
in the specific implementation process of the invention, the sliding distance, the sliding direction and the sliding duration information of the gesture information are obtained in a decoding mode.
S14: and switching a large screen or a small screen on the display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction and the sliding duration information of the gesture information.
In a specific implementation process of the present invention, the switching of the large screen or the small screen of the display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction, and the sliding duration information of the gesture information includes: determining to switch the large screen or the small screen of the screen display interface of the electronic whiteboard based on the sliding direction in the gesture information; when the operation of switching the large screen and the small screen of the electronic whiteboard screen display interface is determined, the width of the switched display interface is the width of the screen minus the sliding speed and the preset dynamic coefficient, the height of the switched display interface is the height of the screen minus the sliding speed and the preset dynamic coefficient, and the moving direction of the electronic whiteboard screen display interface is the sliding direction of the gesture information during switching; when the operation of switching the small screen and the large screen of the electronic whiteboard screen display interface is determined, the width of the switched display interface is the width of the current display interface plus the sliding speed and the preset dynamic coefficient, the height of the switched display interface is the height of the current display interface plus the sliding speed and the preset dynamic coefficient, and the moving direction of the electronic whiteboard screen display interface is the sliding direction of the gesture information during switching; the size of the switched display interface is larger than or equal to one half of the display screen and smaller than or equal to the display screen.
Specifically, switching a large screen or a small screen of a display interface of the electronic whiteboard screen is determined according to the sliding direction in the gesture information; in the method, the position of a first contact point in gesture information is determined, whether the gesture information slides left and right in the horizontal direction or up and down in the vertical direction is determined, and the sliding direction is defined to move away from a frame where the original first contact point is close to, so that the operation of switching a small screen and a large screen of a screen display interface of the electronic whiteboard is defined; and defining that the sliding direction moves close to the frame to which the original first contact point is close, and defining that the operation of switching the large screen and the small screen is performed on the screen display interface of the electronic whiteboard.
When the operation of switching a large screen and a small screen of a display interface of an electronic whiteboard screen is determined, the width of the switched display interface is the width of the screen minus the sliding speed and a preset dynamic coefficient, the height of the switched display interface is the height of the screen minus the sliding speed and the preset dynamic coefficient, and the moving direction of the display interface of the electronic whiteboard screen is the sliding direction of the gesture information during switching; when the operation of switching a small screen and a large screen of a display interface of an electronic whiteboard screen is determined, the width of the switched display interface is the width of the current display interface plus the sliding speed and the preset dynamic coefficient, the height of the switched display interface is the height of the current display interface plus the sliding speed and the preset dynamic coefficient, and the moving direction of the display interface of the electronic whiteboard screen is the sliding direction of the gesture information during switching; the size of the switched display interface is more than or equal to one half of the display screen and less than or equal to the display screen; and the preset dynamic coefficient is determined according to the size of the screen, for example, when the screen size is 86 inches, the preset dynamic coefficient is 0.6.
The electronic whiteboard interface is reduced to be a local size and is close to one side of a user, so that the user can conveniently write on the screen without changing the position of the user and the position of a screen machine. If full screen writing is required to be restored, the user can zoom in by sliding in different directions by the gesture.
In the embodiment of the invention, by detecting the gesture operation of the user, the user can write on the screen at any position without adjusting the position of the user on the screen, so that the operation convenience of the user is improved, the teaching efficiency applied to teaching scenes is improved, and the communication quality applied to business scenes such as conferences and the like is improved.
Examples
Fig. 2 and fig. 2 are schematic structural components of a large-screen and small-screen display interchange switching device of an electronic whiteboard according to an embodiment of the present invention.
As shown in fig. 2, a large-screen and small-screen display mutual switching device of an electronic whiteboard includes:
the starting and detecting module 21: the system comprises a screen display interface, a user gesture detection program and a gesture recognition program, wherein the screen display interface is used for starting the user gesture detection program on the screen display interface of the electronic whiteboard based on a user calling instruction and detecting the current gesture information of a user;
in a specific implementation process of the present invention, the detecting current gesture information of the user includes: and after the electronic whiteboard starts a user gesture detection program, detecting current gesture information of the contact sliding operation of the hand of the user and the screen.
Further, the detecting current gesture information of the sliding operation of the hand of the user contacting the screen comprises: detecting current gesture information of a user hand which is in contact with the screen and is operated by sliding horizontally at the bottom of the screen; or detecting the current gesture information of the user hand which is in contact with the screen and slides up and down on two sides of the screen.
Specifically, when the electronic whiteboard is started, a user gesture detection program is automatically called to start the user gesture detection program on a screen display interface of the electronic whiteboard according to a user calling instruction, or when the user needs to use the electronic whiteboard, the user gesture detection program starts the user gesture detection program on the screen display interface of the electronic whiteboard according to the user calling instruction of the user, and after the user gesture detection program is started on the electronic whiteboard, the user gesture detection program detects current gesture information of the contact sliding operation between the hand of the user and the screen in real time, so that the current gesture information is obtained.
The judging module 22: the electronic whiteboard screen switching system is used for judging whether the detected gesture information is switching gesture information for calling a large screen and a small screen of a display interface of the electronic whiteboard screen;
in the specific implementation process of the present invention, the determining whether the detected gesture information is the switching gesture information for calling the large screen and the small screen of the display interface of the electronic whiteboard screen includes: and judging whether the gesture information is switching gesture information of a large screen and a small screen for calling a display interface of the electronic whiteboard screen or not based on the contact area, the contact position and the sliding speed of the user hand and the screen in the gesture information.
Further, the sliding speed is obtained by calculating according to the sliding distance and the sliding duration information in the gesture information.
Specifically, when judging whether the gesture information is switching gesture information for calling a large screen and a small screen of a screen display interface of the electronic whiteboard, judging whether the contact area, the contact position and the sliding speed of the hand of the user and the screen simultaneously reach or exceed preset values, wherein the preset contact area between the hand of the user and the screen is 50-by-50 pixels; the preset contact position is 1/5 position of the user part placed on the bottom frame or the left frame or the right frame of the screen; the preset sliding speed is within 1000ms, and the displacement distance of the hand on the screen exceeds 600 PX; and the sliding speed is obtained by calculation according to the sliding distance and the sliding duration information in the gesture information.
The information acquisition module 23: the electronic whiteboard screen display interface switching device is used for acquiring the sliding distance, the sliding direction and the sliding duration information of the gesture information if the detected gesture information is the switching gesture information for calling a large screen and a small screen of the electronic whiteboard screen display interface;
in the specific implementation process of the invention, the sliding distance, the sliding direction and the sliding duration information of the gesture information are obtained in a decoding mode.
The switching module 24: and the electronic whiteboard screen switching module is used for switching a large screen or a small screen on the display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction and the sliding duration information of the gesture information.
In a specific implementation process of the present invention, the switching of the large screen or the small screen of the display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction and the sliding duration information of the gesture information includes: determining to switch the large screen or the small screen of the screen display interface of the electronic whiteboard based on the sliding direction in the gesture information; when the operation of switching the large screen and the small screen of the electronic whiteboard screen display interface is determined, the width of the switched display interface is the width of the screen minus the sliding speed and the preset dynamic coefficient, the height of the switched display interface is the height of the screen minus the sliding speed and the preset dynamic coefficient, and the moving direction of the electronic whiteboard screen display interface is the sliding direction of the gesture information during switching; when the operation of switching the small screen and the large screen of the electronic whiteboard screen display interface is determined, the width of the switched display interface is the width of the current display interface plus the sliding speed and a preset dynamic coefficient, the height of the switched display interface is the height of the current display interface plus the sliding speed and the preset dynamic coefficient, and the moving direction of the electronic whiteboard screen display interface is the sliding direction of the gesture information during switching; the size of the switched display interface is larger than or equal to one half of the display screen and smaller than or equal to the display screen.
Specifically, switching of a large screen or a small screen of a display interface of the electronic whiteboard screen is determined according to the sliding direction in the gesture information; in the method, the position of a first contact point in gesture information is determined, whether the gesture information slides left and right in the horizontal direction or up and down in the vertical direction is determined, and the sliding direction is defined to move away from a frame where the original first contact point is close to, so that the operation of switching a small screen and a large screen of a screen display interface of the electronic whiteboard is defined; and defining the sliding direction to move close to the frame to which the original first contact point is close, and defining the operation of switching a large screen from a small screen on the screen display interface of the electronic whiteboard.
When the operation of switching a large screen and a small screen of a display interface of an electronic whiteboard screen is determined, the width of the switched display interface is the width of the screen minus the sliding speed and a preset dynamic coefficient, the height of the switched display interface is the height of the screen minus the sliding speed and the preset dynamic coefficient, and the moving direction of the display interface of the electronic whiteboard screen is the sliding direction of the gesture information during switching; when the operation of switching a small screen and a large screen of a display interface of an electronic whiteboard screen is determined, the width of the switched display interface is the width of the current display interface plus the sliding speed and the preset dynamic coefficient, the height of the switched display interface is the height of the current display interface plus the sliding speed and the preset dynamic coefficient, and the moving direction of the display interface of the electronic whiteboard screen is the sliding direction of the gesture information during switching; the size of the switched display interface is more than or equal to one half of the display screen and less than or equal to the display screen; and the preset dynamic coefficient is determined according to the size of the screen, for example, when the screen size is 86 inches, the preset dynamic coefficient is 0.6.
The electronic whiteboard interface is reduced to be a local size and is close to one side of a user, so that the user can write on the screen conveniently without changing the position of the user and the position of a screen machine. If full screen writing is required to be restored, the user can zoom in by sliding in different directions by the gesture.
In the embodiment of the invention, by detecting the gesture operation of the user, the user can write on the screen at any position on the premise of not adjusting the position of the user on the screen, so that the operation convenience of the user is improved, the teaching efficiency applied to a teaching scene is improved, and the communication quality applied to a business scene such as a conference is improved.
In an embodiment of the present invention, a computer-readable storage medium is provided, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method for switching between large-screen display and small-screen display in any one of the above embodiments is implemented. The computer-readable storage medium includes, but is not limited to, any type of disk including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks, ROMs (Read-Only memories), RAMs (Random AcceSS memories), EPROMs (EraSable Programmable Read-Only memories), EEPROMs (Electrically EraSable Programmable Read-Only memories), flash memories, magnetic cards, or optical cards. That is, a storage device includes any medium that stores or transmits information in a form readable by a device (e.g., a computer, a cellular phone), and may be a read-only memory, a magnetic or optical disk, or the like.
The embodiment of the invention also provides a computer application program which runs on a computer and is used for executing the large-screen and small-screen display mutual switching method in any one of the embodiments.
Fig. 3 is a schematic structural diagram of the electronic whiteboard in the embodiment of the present invention.
The embodiment of the invention also provides an electronic whiteboard, as shown in fig. 3. The electronic whiteboard comprises a processor 302, a memory 303, an input unit 304, a display unit 305 and the like. Those skilled in the art will appreciate that the device configuration means shown in fig. 3 do not constitute a limitation of all devices and may include more or less components than those shown, or some components in combination. The memory 303 may be used to store the application 301 and various functional modules, and the processor 302 executes the application 301 stored in the memory 303, thereby performing various functional applications and data processing of the device. The memory may be internal or external memory, or include both internal and external memory. The memory may comprise read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), flash memory, or random access memory. The external memory may include a hard disk, a floppy disk, a ZIP disk, a usb-disk, a magnetic tape, etc. The disclosed memory includes, but is not limited to, these types of memory. The disclosed memory is by way of example only and not by way of limitation.
The input unit 304 is used for receiving input of signals and keywords input by a user. The input unit 304 may include a touch panel and other input devices. The touch panel can collect touch operations of a user on or near the touch panel (for example, operations of the user on or near the touch panel by using any suitable object or accessory such as a finger, a stylus and the like) and drive the corresponding connecting device according to a preset program; other input devices may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., play control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like. The display unit 305 may be used to display information input by a user or information provided to the user and various menus of the terminal device. The display unit 305 may take the form of a liquid crystal display, an organic light emitting diode, or the like. The processor 302 is a control center of the terminal device, connects various parts of the entire device using various interfaces and lines, and performs various functions and processes data by operating or executing software programs and/or modules stored in the memory 302 and calling data stored in the memory.
As one embodiment, the electronic whiteboard includes: one or more processors 302, a memory 303, and one or more applications 301, wherein the one or more applications 301 are stored in the memory 303 and configured to be executed by the one or more processors 302, and the one or more applications 301 are configured to perform the method for switching between large-screen and small-screen displays in any of the above embodiments.
In the embodiment of the invention, by detecting the gesture operation of the user, the user can write on the screen at any position on the premise of not adjusting the position of the user on the screen, so that the operation convenience of the user is improved, the teaching efficiency applied to a teaching scene is improved, and the communication quality applied to a business scene such as a conference is improved.
In addition, the method, the apparatus, the storage medium, and the electronic whiteboard for switching between large-screen and small-screen displays of the electronic whiteboard according to the embodiments of the present invention are described in detail above, a specific example should be used herein to explain the principle and the implementation manner of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. A method for switching large-screen and small-screen displays of an electronic whiteboard from one another is characterized by comprising the following steps:
starting a user gesture detection program on a screen display interface of the electronic whiteboard based on a user calling instruction, and detecting current gesture information of a user;
judging whether the detected gesture information is switching gesture information for calling a large screen and a small screen of a screen display interface of the electronic whiteboard;
if so, obtaining the sliding distance, the sliding direction and the sliding duration information of the gesture information;
switching a large screen or a small screen on a display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction and the sliding duration information of the gesture information;
the switching of large screen or small screen is carried out on the display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction and the sliding duration information of the gesture information, and the switching comprises the following steps:
determining to switch the large screen or the small screen of the electronic whiteboard screen display interface based on the sliding direction in the gesture information;
when the operation of switching the large screen and the small screen is determined to be performed on the display interface of the electronic whiteboard screen, the width of the switched display interface is the width of the screen minus the sliding speed and the preset dynamic coefficient, the height of the switched display interface is the height of the screen minus the sliding speed and the preset dynamic coefficient, and the moving direction of the display interface of the electronic whiteboard screen is the sliding direction of the gesture information during switching;
when the operation of switching the small screen and the large screen of the electronic whiteboard screen display interface is determined, the width of the switched display interface is the width of the current display interface plus the sliding speed and the preset dynamic coefficient, the height of the switched display interface is the height of the current display interface plus the sliding speed and the preset dynamic coefficient, and the moving direction of the electronic whiteboard screen display interface is the sliding direction of the gesture information during switching;
the size of the switched display interface is larger than or equal to one half of the display screen and smaller than or equal to the display screen.
2. The method for switching between large-screen display and small-screen display according to claim 1, wherein the detecting current gesture information of the user comprises:
and after the electronic whiteboard starts a user gesture detection program, detecting current gesture information of the contact sliding operation of the hand of the user and the screen.
3. The method for switching large-screen and small-screen displays according to claim 2, wherein the detecting current gesture information of the contact sliding operation between the hand of the user and the screen comprises:
detecting current gesture information of a user hand which is in contact with the screen and is operated in a horizontal sliding mode at the bottom of the screen; or the like, or, alternatively,
and detecting current gesture information of the user hand which is in contact with the screen and slides up and down on two sides of the screen.
4. The method for switching large-screen and small-screen displays according to claim 1, wherein the gesture information comprises information of contact areas, contact positions, sliding distances, sliding directions and sliding durations of hands and screens of users.
5. The method for switching between large-screen and small-screen displays according to claim 1, wherein the determining whether the detected gesture information is switching gesture information for calling a large-screen and a small-screen display of the electronic whiteboard screen display interface comprises:
and judging whether the gesture information is switching gesture information for calling a large screen and a small screen of a display interface of the electronic whiteboard screen or not based on the contact area, the contact position and the sliding speed of the user hand and the screen in the gesture information.
6. The method for switching between large-screen display and small-screen display according to claim 5, wherein the sliding speed is obtained by calculation according to the sliding distance and the sliding duration information in the gesture information.
7. A large-screen and small-screen display mutual switching device of an electronic whiteboard is characterized by comprising:
a starting and detecting module: the system comprises a screen display interface, a user gesture detection program and a gesture recognition program, wherein the screen display interface is used for starting the user gesture detection program on the screen display interface of the electronic whiteboard based on a user calling instruction and detecting the current gesture information of a user;
a judging module: the gesture switching module is used for judging whether the detected gesture information is switching gesture information for calling a large screen and a small screen of a screen display interface of the electronic whiteboard;
an information acquisition module: the electronic whiteboard screen display interface switching device is used for acquiring the sliding distance, the sliding direction and the sliding duration information of the gesture information if the detected gesture information is the switching gesture information for calling a large screen and a small screen of the electronic whiteboard screen display interface;
a switching module: the electronic whiteboard screen switching device is used for switching a large screen or a small screen of a display interface of the electronic whiteboard screen based on the sliding distance, the sliding direction and the sliding duration information of the gesture information;
the switching module: the electronic whiteboard screen display interface switching device is further used for determining to switch the large screen or the small screen of the electronic whiteboard screen display interface based on the sliding direction in the gesture information; when the operation of switching the large screen and the small screen is determined to be performed on the display interface of the electronic whiteboard screen, the width of the switched display interface is the width of the screen minus the sliding speed and the preset dynamic coefficient, the height of the switched display interface is the height of the screen minus the sliding speed and the preset dynamic coefficient, and the moving direction of the display interface of the electronic whiteboard screen is the sliding direction of the gesture information during switching; when the operation of switching the small screen and the large screen of the electronic whiteboard screen display interface is determined, the width of the switched display interface is the width of the current display interface plus the sliding speed and the preset dynamic coefficient, the height of the switched display interface is the height of the current display interface plus the sliding speed and the preset dynamic coefficient, and the moving direction of the electronic whiteboard screen display interface is the sliding direction of the gesture information during switching; the size of the switched display interface is larger than or equal to one half of the display screen and smaller than or equal to the display screen.
8. A computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the large-screen and small-screen display mutual switching method according to any one of claims 1 to 6.
9. An electronic whiteboard, comprising:
one or more processors;
a memory;
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to: the large-screen and small-screen display mutual switching method according to any one of claims 1 to 6 is executed.
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