WO2017032205A1

WO2017032205A1 - Control method, apparatus, and system for electronic whiteboard

Info

Publication number: WO2017032205A1
Application number: PCT/CN2016/092705
Authority: WO
Inventors: 章万光
Original assignee: 华为技术有限公司
Priority date: 2015-08-27
Filing date: 2016-08-01
Publication date: 2017-03-02
Also published as: CN106484195B; CN106484195A

Abstract

A control method, apparatus, and system for an electronic whiteboard. The control method comprises: obtaining command icons set by an electronic whiteboard (S100); associating the command icons with operation instructions (S110); identifying operation coordinates in the electronic whiteboard (S120); and executing an operation command corresponding to a command icon at the position of the operation coordinates (S130). By using a customized command icon, more operations can be completed on an electronic whiteboard, so that the functions of the external electronic whiteboard is expanded, and switching between a computer and the electronic whiteboard do not need to be frequently performed any more when a user uses the electronic whiteboard, thereby facilitating the user to use the electronic whiteboard.

Description

Electronic whiteboard control method, device and system

The present application claims priority to Chinese Patent Application No. 201510536276.6, entitled "Control Method, Apparatus and System for Electronic Whiteboard" on August 27, 2015, the entire contents of which are incorporated herein by reference. In the application.

Technical field

The invention relates to the technical field of external electronic whiteboard control, in particular to a method and a device for controlling an electronic whiteboard, and to a control system of an electronic whiteboard.

Background technique

Business meetings, online education and many other work and daily communication scenarios often use external electronic whiteboards. The basic principle of external electronic whiteboards is to convert the operations on the whiteboard into mouse operations corresponding to the control terminal, such as clicking, Double-click, move, etc., can expand the input method very well, effectively improve the efficiency of communication.

In the prior art, when an electronic whiteboard is used, the operations that need to be performed on the presentation generally include two types, one is a command type operation, such as deleting a document, creating a new document, and the like; the other type is a general operation, such as a document content. Label, write content, and more. In these operations, the general operation can be performed on the electronic whiteboard, and the command operation is performed by the mouse operating the application toolbar displayed on the display. In this way, when the user uses the electronic whiteboard for the presentation of the document, there is a situation in which the user needs to use the whiteboard to perform continuous conversion between the operation of the display screen and the use of the external electronic whiteboard, which gives the user an electronic whiteboard. The presentation brings a lot of inconvenience.

Summary of the invention

In view of this, the present invention provides a method, an apparatus, and a system for controlling an electronic whiteboard to solve the technical problem of inconvenience caused by the single function of the electronic whiteboard in the prior art.

To solve the above problem, the first aspect of the present application provides a method for controlling an electronic whiteboard, the method comprising:

The electronic whiteboard control device acquires a command icon set by the electronic whiteboard;

Associate the command icon with an operation instruction;

Identifying operation coordinates in the electronic whiteboard;

The operation instruction corresponding to the command icon at the position where the operation coordinate is located.

With reference to the first aspect, in a first possible implementation, the step of the electronic whiteboard control device acquiring the command icon set by the electronic whiteboard further includes: the electronic whiteboard control device determining the calibration command area set by the electronic whiteboard; and determining The command icon is associated with the operation command when the command icon is located within the calibration command area.

In conjunction with the first possible implementation of the first aspect, in a second possible implementation, the step of determining, by the electronic whiteboard control device, the calibration command area set by the electronic whiteboard includes:

The electronic whiteboard control device recognizes an operation point of the user on the electronic whiteboard, and defines a rectangular area in which a corner point closest to the electronic whiteboard is the diagonal of the operation point as the calibration command area.

In conjunction with the first possible implementation of the first aspect, or the second possible implementation manner, in a third possible implementation manner, the electronic whiteboard control apparatus is configured to determine a calibration command area set by the electronic whiteboard Also includes:

The electronic whiteboard control device displays a plurality of default icons in an area corresponding to the calibration command area on a screen of the electronic whiteboard control device, wherein each of the default icons is associated with an operation instruction in advance;

The associating the command icon with the operation instruction specifically includes: identifying that the command icon is located at a position of the first default icon of the plurality of default icons, and associating the command icon with an operation instruction corresponding to the first default icon .

With reference to the first aspect, the first to the third possible implementation manners of the first aspect, in a fourth possible implementation, the operation instruction corresponding to the command icon at the position where the operation coordinate is performed The steps are specifically as follows:

Using a ray method to determine whether the operation coordinate is located inside a command icon;

If yes, it is determined that the command icon is the operated icon and the operation instruction corresponding to the command icon is executed.

The first possible implementation manner of the first aspect, in the fifth possible implementation, the step of identifying the operation coordinates in the electronic whiteboard further includes:

Determining whether the electronic whiteboard has set the command icon;

If so, the operation coordinates in the electronic whiteboard are recognized to execute an operation instruction corresponding to the command icon at the position where the operation coordinate is located; otherwise, the calibration command area is set and the command icon is set in the calibration command area.

With reference to the first aspect, any one of the first to the fifth possible implementation manners of the first aspect, in the sixth possible implementation manner, the command icon includes at least a new whiteboard, a frozen whiteboard interface, and a deleted annotation Operation instructions.

In order to solve the above problem, the second aspect of the present application provides an electronic whiteboard control apparatus, where the electronic whiteboard control apparatus includes: an acquisition module, an association module, an identification module, and an execution module, wherein the acquisition module is configured to acquire a command icon set by the electronic whiteboard. The association module is configured to associate the command icon with the operation instruction; the recognition module is configured to identify the operation coordinate in the electronic whiteboard; and the execution module is configured to execute the operation instruction corresponding to the command icon at the position where the operation coordinate is located.

In conjunction with the second aspect, in a first possible implementation, the electronic whiteboard control apparatus further includes a determining module, configured to determine a calibration command area set by the electronic whiteboard.

With reference to the first possible implementation of the second aspect, in a second possible implementation, the determining module is specifically configured to: identify an operation point of the user on the electronic whiteboard, and define the operation point with the The electronic whiteboard is a rectangular area of the diagonal from the nearest corner as the calibration command area.

In conjunction with the first or second possible implementation of the second aspect, in a third possible implementation, the electronic whiteboard control apparatus further includes a display module, the display module is configured to be on the screen of the electronic whiteboard control device A plurality of default icons are displayed in an area corresponding to the calibration command area, wherein each of the default icons is associated with an operation instruction in advance.

In conjunction with the first or second possible implementation of the second aspect, in a fourth possible implementation, the association module is specifically configured to identify that the command icon is located in the first default icon of the multiple default icons Position, the life The icon is associated with an operation instruction corresponding to the first default icon.

With reference to the second aspect, in a fifth possible implementation, the execution module is specifically configured to determine, by using a ray method, whether the operation coordinate is located inside a command icon; if yes, determining that the command icon is the operated icon And execute the operation instruction corresponding to the command icon.

In conjunction with the second aspect, in a sixth possible implementation, the electronic whiteboard control apparatus further includes a determining module, configured to determine whether the electronic whiteboard has set the command icon.

In conjunction with the second aspect, in a seventh possible implementation, the command icon includes at least a new whiteboard, a frozen whiteboard interface, and an operation instruction for deleting the annotation.

In order to solve the above problem, a third aspect of the present application provides an electronic whiteboard control system, which includes an electronic whiteboard and the electronic whiteboard control device according to any one of the above embodiments, wherein the electronic whiteboard control device Connected to the electronic whiteboard.

In combination with the third aspect, the electronic whiteboard control device is a mobile phone or a computer.

In the above solution, by customizing the command icon on the electronic whiteboard, associating the command icon with the operation instruction, and then identifying the operation coordinates of the user in the electronic whiteboard, the operation instruction corresponding to the command icon at the position where the operation coordinate is located is executed. The application can expand the function of the external electronic whiteboard, and the functions that need to be operated on the computer in the prior art, such as newly creating a whiteboard, freezing the whiteboard interface, and deleting the label, are moved to the electronic whiteboard, so that the user is using the electronic whiteboard. It is no longer necessary to frequently switch between the computer and the electronic whiteboard, which is convenient for the user to use the electronic whiteboard.

DRAWINGS

1 is a schematic flow chart of an embodiment of an electronic whiteboard control method of the present application;

2 is a schematic diagram showing the display of a calibration command area;

3 is a block diagram of an embodiment of an electronic whiteboard control device of the present application;

4 is a block diagram showing the structure of an embodiment of the electronic whiteboard control system of the present application;

FIG. 5 is a schematic structural view of an embodiment of an electronic whiteboard control device of the present application.

detailed description

In the following description, for purposes of explanation and description, reference, However, it will be apparent to those skilled in the art that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the application.

The following description will be made with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1 , FIG. 1 is a schematic flowchart of an embodiment of an electronic whiteboard control method according to the present application. The electronic whiteboard control method of the present embodiment includes but is not limited to the following steps.

In step S100, the electronic whiteboard control device acquires a command icon set by the electronic whiteboard.

The connection form between the electronic whiteboard and the electronic whiteboard control device may be a wired connection or a wireless connection, and the specific connection form thereof is not limited herein. The electronic whiteboard control device can be a terminal device such as a computer or a mobile phone.

The specific implementation of the step 100 may be that the electronic whiteboard recognizes the coordinates of each point on the command icon drawn by the user, and transmits the coordinates of each point to the electronic whiteboard control device, and the electronic whiteboard control device receives the coordinates of each point and passes through each point. The coordinates get the command icon set by the whiteboard.

Preferably, before step S100, the method further includes the step of: the electronic whiteboard control device determining the calibration command area set by the electronic whiteboard. Wherein, in the set calibration command area, it may be an existing area on the electronic whiteboard, and the electronic whiteboard control device defaults the area to the calibration command area. It is also possible for the user to draw a graphic at any position on the electronic whiteboard, the electronic whiteboard detects the set of coordinates of each point on the graphic, and transmits the set of coordinates of the respective points to the electronic whiteboard control device, and the electronic whiteboard control device A region is determined as a calibration command region according to the set of coordinates of the respective points and the position thereof on the display screen. The calibration command area may be a rectangle, a circle, a square, an irregular geometry, etc., and is not limited herein.

Preferably, the electronic whiteboard control device recognizes a user's operation point on the electronic whiteboard, and defines a rectangular area having a diagonal point closest to the electronic whiteboard as the calibration command area.

Please refer to FIG. 2 for details. FIG. 2 is a schematic diagram showing the setting of the calibration command area. It should be noted that, in the technical solution, the program control executed inside the electronic whiteboard control device completes the corresponding steps, and the following description is controlled by the electronic whiteboard. The device acts as the main body of control. As can be seen in the figure, the electronic whiteboard control device recognizes an operation point 410 drawn by the user near the upper left corner area of the electronic whiteboard 400, and the electronic whiteboard control device defines that the operation point 410 is diagonal to the upper left corner of the electronic whiteboard. The rectangular area of the line serves as the calibration command area 401. Of course, in other embodiments, the user can also draw an operation point at other positions of the electronic whiteboard 400 according to the operating habits, such as near the lower left corner of the electronic whiteboard 400, near the upper right corner, and near the lower right corner, etc., In order to ensure the realization of other functions of the electronic whiteboard 400 and the aesthetic appearance of the overall display, the area of the calibration command area 401 should not be too large. The process of setting the command area 401 on the electronic whiteboard 400 and setting the icon in the calibration command area 401 is synchronously displayed on the display screen of the control device for prompting the user whether the setting process meets the requirements.

After defining the calibration command area 401, the electronic whiteboard control device displays a plurality of default icons 402 in an area corresponding to the calibration command area 401 on the screen of the electronic whiteboard control device, and the number of default icons can be performed in the electronic whiteboard control device. set up. In addition, the shape 402 of the default icon is randomly generated by the electronic whiteboard control device, and may have a circle, a square, a star, or the like.

In the manner in which the calibration command area is set and the icon is set in the calibration command area, the user can select to draw an icon of the same shape as the default icon at the default icon position, when the user does not want to draw an icon of the same shape as the default icon. You can also draw icons of other shapes as setting icons. The icon shape user can select the drawing at will, the electronic whiteboard recognizes the coordinates of each point of the graphic drawn by the user, and transmits the coordinates of each point to the electronic whiteboard control device, and the electronic whiteboard control device closes the drawn icon according to the coordinates of each point. Processing ensures that the drawn icon shape is a closed shape to facilitate subsequent determination of the icon operated by the user.

The electronic whiteboard control device recognizes the default icon to be replaced by the user to draw the icon according to the position of the icon drawn by the user. For example, the user draws an icon at the star position in FIG. 2, and the electronic whiteboard control device replaces the star with the icon drawn by the user. Shape default icon.

The user can also draw the icons in order, and when the icon is drawn, the brush (or the finger, etc.) is clicked as the start, the brush is raised to the end, and the electronic whiteboard control device records the coordinates of the points of the user drawing the icon process as the icon. Metadata that describes the shape of the icon. After each icon is drawn, the electronic whiteboard control device displays the icon drawn by the user and replaces the default icon; after the number of icons drawn by the user reaches a predetermined number, the setting process is automatically completed, and the electronic whiteboard control device prompts User: The electronic whiteboard control device has recorded all the setting icon information for subsequent identification.

In step S110, the command icon is associated with the operation instruction.

The electronic whiteboard control device associates the command icon with the operation instruction corresponding to the first default icon, and recognizes that the command icon is located at the position of the second default icon, and recognizes that the command icon is located at the position of the second default icon. At the same time, the command icon is associated with the operation instruction corresponding to the second default icon, and so on, and the command icon drawn by the user is associated with the operation instruction at the default icon position.

Pre-associated operational instructions may include creating a new whiteboard, freezing the whiteboard interface, and deleting annotations. The new whiteboard is a whiteboard control device that creates a new whiteboard interface on its display; freezes the whiteboard interface: after the user operates the function, subsequent operations on the electronic whiteboard are not recognized, and the function is generally a user. After creating a new whiteboard interface, delete the content on the electronic whiteboard; delete the annotation: after the user operates the function, click the annotation to be deleted on the electronic whiteboard, and the electronic whiteboard control device will automatically delete the annotation. This process generally requires the user to combine the function of freezing the whiteboard interface to manually delete the label on the electronic whiteboard to ensure that the display contents of the electronic whiteboard and the control device display are consistent.

In step S120, the operation coordinates in the electronic whiteboard are identified.

Preferably, before step S120, the method may further include: determining whether the electronic whiteboard has set the command icon; if yes, proceeding to step S120 to identify the operation coordinates in the electronic whiteboard; otherwise, returning to the setting calibration command area and in the calibration command area The steps to set the command icon inside.

In the process of using the electronic whiteboard, if the function corresponding to the icon is needed, the icon area of the electronic whiteboard is clicked (including clicking, double-clicking, etc.), and the electronic whiteboard feeds back to the electronic whiteboard control device a coordinate position, and the electronic whiteboard controls The device recognizes the icon to which it belongs based on this coordinate position.

Since the setting icon is drawn by the user, it is likely to be an irregular polygon. We can use the ray method to judge whether the operating point (ie, the user's operating position) is inside the icon. The following is a brief introduction to the principle of the ray method. .

The ray method is a basic method for judging the relationship between points and polygons, and generally includes the following cases. 1. If the point (operation point) belongs to one of the polygon vertices, it is considered to be inside the icon; 2. If the point is on any side of the polygon, it is considered to be inside the icon; 3. If the point is to be judged, the ray is directed to a certain direction. Calculate the number of intersections with polygons. If the number is even or 0, the point is outside the polygon. If it is odd, it is inside the polygon. 4. When the ray passes through the vertices of the polygon, some special judgment processing is needed: a) Ray The passing points are all on one side of the ray and are considered to be disjoint; b) the two endpoints of the line segment are as If it is on both sides of the ray, it is considered to intersect the ray. The basic principles of the ray method relating to the relationship between points and polygons are well known to those skilled in the art and will not be described again.

When it is judged that the user's operation position is not located inside any of the icons in the calibration command area, the operation action is not responded. If it is judged that the user's operation position is inside the icon in the calibration command area, the next step is entered.

Step S130, executing an operation instruction corresponding to the command icon at the position where the operation coordinate is located.

The electronic whiteboard control device receives the operation coordinates executed on the electronic whiteboard from the electronic whiteboard, and executes the operation instruction corresponding to the command icon when determining that the operation coordinates are located in the command icon area.

The control method flow ends.

In the electronic whiteboard control method in the embodiment, by customizing the calibration command area, drawing the setting icon by itself, and defining the associated function of the setting icon, the user can complete the computer (or other control device, such as a mobile phone) on the electronic whiteboard. The functions of the operation (including the new whiteboard, freezing the whiteboard interface, and deleting the annotations, etc.), so when the user uses the electronic whiteboard, it is not necessary to frequently switch between the computer and the electronic whiteboard, and the user can use the habit according to the usage habit. Setting the personality drawing icon as the setting icon greatly optimizes the user's operation experience using the electronic whiteboard.

Referring to FIG. 3, FIG. 3 is a block diagram of an embodiment of an electronic whiteboard control device of the present application. The electronic whiteboard control device of the present embodiment includes, but is not limited to, an acquisition module 301, an association module 302, an identification module 303, and an execution module 304. The determination module 305, the display module 306, and the determination module 307.

Specifically, the determining module 305 is configured to determine a calibration command area set by the electronic whiteboard. Wherein, in the set calibration command area, the user can draw a graphic at any position on the electronic whiteboard, the electronic whiteboard detects the set of coordinates of each point of the graphic, and transmits the set of coordinates of the respective points to the The electronic whiteboard control device, the determining module 305 of the electronic whiteboard control device determines an area as a calibration command area according to the set of coordinates of the respective points and the position thereof on the display screen. The calibration command area may be a rectangle, a circle, a square, an irregular geometry, etc., and is not limited herein.

Preferably, the determining module 305 identifies a user's operation point on the electronic whiteboard and defines a rectangular area with a diagonal point closest to the electronic whiteboard as the calibration command area. For the specific steps of determining the calibration command area, refer to the related description in the embodiment of the electronic whiteboard control method in the above embodiment.

The display module 306 is configured to display a plurality of default icons in an area corresponding to the calibration command area on the screen of the electronic whiteboard control device, and the default icons may have a shape of a circle, a square, a star, or the like.

The obtaining module 301 is configured to acquire a command icon set by the electronic whiteboard. The association module 302 is for associating a command icon with an operation instruction.

The user can choose to use the default icon as the set icon. When the user does not want to use the default icon as the set icon, he can also draw the icon as the setting icon. The icon shape user can select the drawing at will, the electronic whiteboard sets the coordinates of each point of the graphic drawn by the user, and transmits the coordinates of each point to the associated module of the electronic whiteboard control device. 302. The association module 302 performs a closed process on the drawn icon according to the coordinates of each point, and ensures that the drawn icon shape is a closed shape to facilitate subsequent determination of the icon operated by the user.

The association module 302 identifies a default icon to be replaced by the user-drawn icon according to the location of the user-drawn icon. For example, the user draws an icon at the star position in FIG. 2, and the association module 302 replaces the star default icon with the icon drawn by the user.

The user can also draw the icons in order, and when the icon is drawn, the brush (or the finger, etc.) is clicked as the start, the brush is raised to the end, and the association module 302 records the coordinates of the points of the user drawing the icon as the element of the icon. Data that describes the shape of the icon. Each time an icon is drawn, the display module 306 displays the icon drawn by the user, and the association module 302 replaces the default icon with the user-drawn icon; after the number of icons drawn by the user reaches a predetermined number, the setting process is automatically completed. Prompting the user: The association module 302 has recorded all the setting icon information for subsequent identification.

The determining module 307 is configured to determine whether the electronic whiteboard has set a command icon; if yes, the identifying module 303 identifies the operating coordinates in the electronic whiteboard; otherwise, the determining module 305 is to re-determine the calibration command area.

In the process of using the electronic whiteboard, if the function corresponding to the icon is needed, the icon area of the electronic whiteboard is clicked (including clicking, double-clicking, etc.), and the electronic whiteboard feeds back to the identification module 303 a coordinate position, and the identification module 303 is based on This coordinate position identifies the icon to which it belongs.

The execution module 304 is configured to execute an operation instruction corresponding to the command icon at the position where the operation coordinates are located. Since the setting icon is drawn by the user, it is likely to be an irregular polygon. The execution module 304 uses the ray method to determine whether the operating point (ie, the user's operating position) is within the icon. The principle of the ray method is simple. Introduction.

The ray method is a basic method for judging the relationship between points and polygons, and generally includes the following cases. 1. If the point (operation point) belongs to one of the polygon vertices, it is considered to be inside the icon; 2. If the point is on any side of the polygon, it is considered to be inside the icon; 3. If the point is to be judged, the ray is directed to a certain direction. Calculate the number of intersections with polygons. If the number is even or 0, the point is outside the polygon. If it is odd, it is inside the polygon. 4. When the ray passes through the vertices of the polygon, some special judgment processing is needed: a) Ray The passing points are all on one side of the ray and are considered to be disjoint; b) the two endpoints of the line are considered to intersect the ray if they are on either side of the ray. The basic principles of the ray method relating to the relationship between points and polygons are well known to those skilled in the art and will not be described again.

When the execution module 304 determines that the user's operation position is not located inside any of the icons in the calibration command area, it does not respond to the operation action. If the execution module 304 determines that the user's operating position is inside the icon of the calibration command area At the time, the operation instruction corresponding to the command icon at the position where the operation coordinate is located is executed.

In the electronic whiteboard control device in the embodiment, by customizing the command area and the icon, the user can perform functions on the electronic whiteboard that should be operated on the computer (or other control device, such as a mobile phone, etc.) (including newly creating a whiteboard, freezing the whiteboard). The interface and the deletion of annotations, etc., enable the user to switch between the computer and the electronic whiteboard frequently when using the electronic whiteboard, which greatly facilitates the user's operation experience using the electronic whiteboard.

Please refer to FIG. 4. FIG. 4 is a structural block diagram of an embodiment of an electronic whiteboard control system of the present application. The electronic whiteboard control system includes, but is not limited to, an electronic whiteboard control device 810 and an electronic whiteboard 820. The electronic whiteboard control device 810 is connected to the electronic whiteboard, and the electronic whiteboard control device 810 is configured to acquire a command icon set by the electronic whiteboard; associate the command icon with the operation instruction; and then identify the operation coordinates in the electronic whiteboard; The operation command corresponding to the command icon at the location. The electronic whiteboard control device 810 can be a terminal device such as a mobile phone or a computer, and the connection between the electronic whiteboard control device 810 and the electronic whiteboard 820 can also be wired or wireless.

For details of the specific working process between the electronic whiteboard control device 810 and the electronic whiteboard 820, refer to the related description in the foregoing embodiments, and details are not described herein again.

Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of an embodiment of an electronic whiteboard control device according to the present application. The electronic whiteboard control device 900 in this embodiment may be a mobile phone or a portable computer. The electronic whiteboard control device 900 includes a processor 901, a receiver 902, a transmitter 903, a read only memory 904, a random access memory 905, and a bus 906.

The receiver 902 is configured to receive data.

The processor 901 controls the operation of the terminal device repairing device, and the processor 901 can also be a CPU (Central Processing Unit). The processor 901 may be an integrated circuit chip with signal processing capabilities. The processor 901 can also be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, and discrete hardware components. . The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The transmitter 903 is for transmitting data.

The memory can include read only memory 904 and random access memory 905 and provides instructions and data to processor 901. A portion of the memory may also include non-volatile random access memory (NVRAM).

The various components of the electronic whiteboard control device are coupled together via a bus 906, wherein the bus 906 can include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like. However, for clarity of description, various buses are labeled as bus 906 in the figure.

The memory stores the following elements, executable modules or data structures, or a subset of them, or their extended set:

Operation instructions: include various operation instructions for implementing various operations.

Operating system: Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.

In the embodiment of the present invention, the processor 901 performs the following operations by calling an operation instruction stored in the memory (which can be stored in the operating system): the processor 901 is configured to acquire a command icon set by the electronic whiteboard; Command map The target is associated with the operation instruction; then the operation coordinates in the electronic whiteboard are identified; the operation instruction corresponding to the command icon at the position where the operation coordinate is located is executed.

Optionally, the control device of the electronic whiteboard further includes a display (not shown) for displaying prompt information of the electronic whiteboard control process.

For details of the specific control process and the technical effects between the electronic whiteboard control device 900 and the electronic whiteboard, refer to the related description in the above embodiments, and details are not described herein again.

In the several embodiments provided by the present invention, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device implementations described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a management server, or a network device, etc.) or a processor to perform all or part of the steps of the methods of the various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only the embodiments of the present invention, and is not intended to limit the scope of the present invention. The equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims

An electronic whiteboard control method, characterized in that the method comprises:

The electronic whiteboard control device acquires a command icon set by the electronic whiteboard;

Associating the command icon with an operation instruction;

Identifying operation coordinates in the electronic whiteboard;

An operation instruction corresponding to the command icon at the position where the operation coordinate is located.
The electronic whiteboard control method according to claim 1, wherein the step of the electronic whiteboard control device acquiring the command icon set by the electronic whiteboard further comprises:

The electronic whiteboard control device determines a calibration command area set by the electronic whiteboard; and associates the command icon with the operation instruction when it is determined that the command icon is located in the calibration command area.
The electronic whiteboard control method according to claim 2, wherein the step of determining, by the electronic whiteboard control device, the calibration command area set by the electronic whiteboard comprises:

The electronic whiteboard control device recognizes an operation point of the user on the electronic whiteboard, and defines a rectangular area in which a corner point of the operation point is closest to the electronic whiteboard as a diagonal line as the calibration command area.
The electronic whiteboard control method according to claim 2 or 3, wherein the electronic whiteboard control device further comprises: after determining the calibration command area set by the electronic whiteboard:

The electronic whiteboard control device displays a plurality of default icons in an area corresponding to the calibration command area on a screen of the electronic whiteboard control device, wherein each of the default icons is associated with an operation instruction in advance;

The associating the command icon with the operation instruction specifically includes: identifying that the command icon is located at a position of the first default icon of the plurality of default icons, and the command icon and the first default icon Corresponding operation instructions are associated.
The electronic whiteboard control method according to any one of claims 1 to 4, wherein the step of executing the operation instruction corresponding to the command icon at the position where the operation coordinate is located is specifically:

Determining whether the operation coordinate is located inside a command icon by using a ray method;

If yes, determining that the command icon is the operated icon and executing an operation instruction corresponding to the command icon.
The electronic whiteboard control method according to claim 2, wherein the step of identifying the operation coordinates in the electronic whiteboard further comprises:

Determining whether the electronic whiteboard has set the command icon;

If so, the operation coordinates in the electronic whiteboard are recognized to execute an operation instruction corresponding to the command icon at the position where the operation coordinates are located; otherwise, the calibration command area is set and a command icon is set in the calibration command area.
The electronic whiteboard control method according to any one of claims 1 to 6, wherein the command icon includes at least a new whiteboard, a frozen whiteboard interface, and an operation instruction for deleting the annotation.
An electronic whiteboard control device, characterized in that the electronic whiteboard control device comprises:

The obtaining module is configured to obtain a command icon set by the electronic whiteboard;

An association module, configured to associate the command icon with an operation instruction;

An identification module for identifying operation coordinates in the electronic whiteboard;

The execution module executes an operation instruction corresponding to the command icon at the position where the operation coordinate is located.
The electronic whiteboard control device according to claim 8, wherein the electronic whiteboard control device further comprises a determining module for determining a calibration command area set by the electronic whiteboard.
The electronic whiteboard control device according to claim 9, wherein the determining module is specifically configured to: identify an operating point of the user on the electronic whiteboard, and define a distance from the operating point to the electronic whiteboard The nearest corner is a rectangular area of the diagonal as the calibration command area.
The electronic whiteboard control device according to claim 9 or 10, wherein the electronic whiteboard control device further comprises a display module, wherein the display module is used on the screen of the electronic whiteboard control device and the calibration A plurality of default icons are displayed in the area corresponding to the command area, wherein each of the default icons is associated with an operation instruction in advance.
The electronic whiteboard control device according to claim 9 or 10, wherein the association module is specifically configured to: identify that the command icon is located at a position of a first default icon of the plurality of default icons, The command icon is associated with an operation instruction corresponding to the first default icon.
The electronic whiteboard control device according to claim 8, wherein the execution module is specifically configured to determine whether the operation coordinate is located inside a command icon by using a ray method; if yes, determining that the command icon is The operated icon and an operation instruction corresponding to the command icon is executed.
The electronic whiteboard control device according to claim 8, wherein the electronic whiteboard control device further comprises a determination module, wherein the determination module is configured to determine whether the electronic whiteboard has set the command icon.
The electronic whiteboard control device according to claim 8, wherein the command icon comprises at least a new whiteboard, a frozen whiteboard interface, and an operation instruction for deleting the annotation.
An electronic whiteboard control system, comprising: an electronic whiteboard; and the electronic whiteboard control device according to any one of claims 8-15, wherein the electronic whiteboard control device and the electronic whiteboard connection.
The electronic whiteboard control system according to claim 16, wherein the electronic whiteboard control device is a mobile phone or a computer.