CN117215711A - Cloud classroom management display board control method and system - Google Patents
Cloud classroom management display board control method and system Download PDFInfo
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Abstract
The application relates to a control method and a system for a cloud classroom management display board, and relates to the field of network teaching technology; establishing a display area with a rectangular shape at four preset corner points and determining a corresponding display area; judging whether a display area is intersected with the outline of the interpretation character or not; if the display area is intersected with the outline of the interpretation character, defining the display area as an invalid area; if the condition that the display area is intersected with the outline of the interpretation character does not exist, defining the display area as an effective area; and determining the display area with the largest numerical value in the effective areas determined by all the corner points according to a preset ordering rule, and performing management display on the display area corresponding to the display area. The application has the effect of improving the display effect of the management display board.
Description
Technical Field
The application relates to the field of network teaching technology, in particular to a control method and a control system for a cloud classroom management display board.
Background
The cloud classroom is an internet service oriented to education and training industries, so that teachers can give lessons only through a live webcast mode, and the cloud classroom is an omnibearing interactive learning mode which truly and completely breaks through space-time limitation. The management presentation board is a computer interface that presents key performance indicators that are needed by the enterprise management layer to efficiently manage its own enterprise.
In cloud classroom, in order to make the teacher can effectively see clearly the content of imparting knowledge to students, management show board is with fixed size demonstration on teacher's computer desktop fixed area, and its main content is student's study condition, for example student's answer correct rate in the classroom, single student's answer condition etc. the teacher only need can know student's whole study condition through the data in the management show board of observing to can adjust self teaching process, with better giving lessons the homework to the student.
For the above related art, the inventor considers that the management display board displays in a fixed area, at this time, the content of the data that can be displayed is limited, the data that cannot be actively displayed often needs to be manually switched for display by the user, and the content taught by the user changes, and the situation that part of the desktop display area remains blank and is not used may occur, so that the display effect of the whole management display board is poor, and there is room for improvement.
Disclosure of Invention
In order to improve the display effect of the management display board, the application provides a control method and a control system of a cloud classroom management display board.
In a first aspect, the application provides a control method for a cloud classroom management display board, which adopts the following technical scheme:
a cloud classroom management display board control method comprises the following steps:
acquiring the outline of the interpretation character;
establishing a display area with a rectangular shape at four preset corner points and determining a corresponding display area;
judging whether a display area is intersected with the outline of the interpretation character or not;
if the display area is intersected with the outline of the interpretation character, defining the display area as an invalid area;
if the condition that the display area is intersected with the outline of the interpretation character does not exist, defining the display area as an effective area;
and determining the display area with the largest numerical value in the effective areas determined by all the corner points according to a preset ordering rule, and performing management display on the display area corresponding to the display area.
By adopting the technical scheme, the positions of characters in the file of the user teaching are known by firstly acquiring the outline of the read character, so that the display area is determined according to the corner points, and the display area which is as large as possible can be determined according to the character conditions of the characters to be displayed on the management display board, so that the display effect of the management display board is improved.
Optionally, the step of establishing the display area includes:
acquiring an upper limit length-width ratio and a lower limit length-width ratio;
establishing a rectangular coordinate system by taking a corner point as an origin, a preset long side of a desktop as an abscissa and a preset wide side of the desktop as an ordinate, defining a quadrant where the desktop is located in the rectangular coordinate system as a display quadrant, and acquiring a character transverse lower limit value and a character longitudinal lower limit value;
determining a longitudinal straight line on the display quadrant by using the character transverse lower limit value, and determining a transverse straight line on the display quadrant by using the character longitudinal lower limit value;
establishing boundary rays taking edge points as endpoints according to the upper limit length-width ratio and the lower limit length-width ratio in the display quadrant;
determining a required area according to the longitudinal straight line, the transverse straight line and the boundary rays;
and generating a randomly-moved demand point in the demand area, and determining the display area according to the demand point and the corner point serving as diagonal vertices.
By adopting the technical scheme, the display area can be determined according to the rectangular length-width ratio value i set by a user during use, so that the experience feeling given to the user during the display of the management display board by the subsequently determined display area is better.
Optionally, after the maximum display area is determined, the cloud classroom management display board control method further includes:
defining a demand point of a display area forming a maximum display area as a fixed point;
determining a display aspect ratio value according to the fixed point and the corner point;
judging whether the display length ratio is in a preset comfort ratio range or not;
if the display length ratio is in the comfort ratio range, the management display board is used for displaying in the display area corresponding to the display area;
if the display length ratio is not in the comfort ratio range, defining the currently determined display area as an upper limit area, and defining the display area of the display area determined in the comfort ratio range as a pending area;
calculating according to the upper limit area and the area to be determined to determine the difference area;
judging whether the difference area is smaller than a preset allowable change area or not;
if the area of the difference value is smaller than the allowable change area, performing management display on the display board according to the currently determined display area;
if the difference area is smaller than the allowable change area, determining a display area with the smallest difference area according to the ordering rule, and displaying the management display board by using the display area.
Through adopting above-mentioned technical scheme, can calculate aspect ratio value in order to confirm comparatively comfortable display area and manage the show board and show to improve the user and watch the experience of managing the show board and feel.
Optionally, the method further includes a step of determining the allowable change area, the step including:
acquiring data byte information;
determining a required area corresponding to the data byte information according to a preset area matching relation;
calculating a difference value according to the upper limit area and the required area to determine a deviation area;
judging whether the deviation area is smaller than a preset fixed area or not;
if the deviation area is smaller than the fixed area, taking the deviation area as an allowable change area;
if the deviation area is not smaller than the fixed area, the fixed area is used as the allowable change area.
By adopting the technical scheme, the area selection is performed according to the size of the data to be watched, so that the area of the display area displayed by the management display board meets the requirement.
Optionally, after determining the display area with the smallest difference area according to the sorting rule, the control method of the cloud classroom management display board further includes:
judging whether at least two display areas with the smallest difference areas exist or not;
if at least two display areas with the smallest difference area do not exist, the management display board is used for displaying according to the determined display areas;
if at least two display areas with the smallest difference area exist, center position information is determined in the display areas, and mouse position information is obtained;
calculating according to the central position information and the mouse position information to determine the distance information;
and determining the distance information with the minimum corresponding distance value according to the ordering rule, and displaying the display area corresponding to the distance information on the management display board.
Through adopting above-mentioned technical scheme, the mouse position of accessible user on the computer desktop is in order to confirm concrete explanation position to can make the display area of management show board comparatively be close to user explanation position, so that the user watches the data acquisition in the management show board.
Optionally, if at least two display areas with the smallest difference area exist, the cloud classroom management display board control method further includes:
judging whether the display areas with the smallest difference areas are all display areas formed by the corner points on the same side;
if the display area with the smallest difference area is not the display area formed by the corner points of the same side, acquiring the position information of the mouse to determine the display area displayed by the management display board;
if the display areas with the smallest difference areas are all display areas formed by the same corner points, calculating according to the demand points and the corner points of each display area to determine the undetermined demand ratio;
calculating a difference value according to the undetermined demand ratio and a preset standard demand ratio to determine a deviation ratio;
and determining a deviation ratio with the smallest numerical value according to the ordering rule, and carrying out management display board display on the corresponding display area according to the deviation ratio, wherein the display area is not changed.
By adopting the technical scheme, when the selectable display areas are positioned at the same corner, the more comfortable display areas can be determined according to the length-width ratio value for use, so that the condition that the management display board changes at the same corner point is reduced.
Optionally, after determining the display area according to the distance information, the cloud classroom management display board control method further includes:
judging whether the display area needs to be changed or not;
if the display area does not need to be changed, maintaining the original display area;
if the display area needs to be changed, controlling the countdown of a preset fixed time length, defining the display area which is currently displayed as an operation area, and defining the display area which needs to be changed as a replacement area;
judging whether the replacement area changes or not in the process of counting down the fixed duration;
if the replacement area is changed, controlling the fixed time length to reset and re-timing;
and if the replacement area is unchanged, the management display board is displayed in the display area after the fixed time length is reset.
By adopting the technical scheme, the transient change condition can be analyzed, so that the condition that the management display board needs to be synchronously and rapidly switched when a user rapidly moves the mouse is reduced, and the condition of dazzling is reduced.
In a second aspect, the application provides a cloud classroom management display board control system, which adopts the following technical scheme:
a cloud classroom management display board control system, comprising:
the acquisition module is used for acquiring the outline of the interpretation character;
the processing module is connected with the acquisition module and the judging module and is used for storing and processing information;
the judging module is connected with the acquisition module and the processing module and is used for judging information;
the processing module establishes a display area with a rectangular shape at four preset corner points and determines a corresponding display area;
the judging module judges whether the condition that the display area is intersected with the outline of the interpretation character exists or not;
if the judging module judges that the condition that the display area is intersected with the outline of the interpretation character exists, the processing module defines the display area as an invalid area;
if the judging module judges that the condition that the display area is intersected with the outline of the interpretation character does not exist, the processing module defines the display area as an effective area;
the processing module determines the display area with the largest numerical value in the effective areas determined by all the corner points according to a preset ordering rule, and manages and displays the display board in the display area corresponding to the display area.
Through adopting above-mentioned technical scheme, acquire the position that interpretation character profile in order to learn the file of user teaching in the text place earlier to make processing module carry out the determination of display area according to the corner, thereby can manage the show board display with determining as large as possible display area according to the character condition of characters, in order to improve the display effect of management show board.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the display position of the management display board can be replaced in real time according to the character content explained by the user, so that the management display board can be as large as possible and meanwhile, the characters can not be shielded, and the display effect of the management display board is improved;
2. the display area can be adjusted according to the data condition to be displayed, so that the display effect of the management display board is better;
3. the position of the management display board can be automatically changed according to the position change of the explanation of the user, so that the user can conveniently observe the management display board in real time in the explanation process.
Drawings
Fig. 1 is a flow chart of a cloud classroom management presentation board control method.
Fig. 2 is a flowchart showing a region creation method.
Fig. 3 is a schematic diagram showing a region determination process.
Fig. 4 is a flowchart showing a position change method.
Fig. 5 is a flowchart of a license change area determination method.
Fig. 6 is a flowchart showing a position adjustment method.
Fig. 7 is a flowchart showing a position determining method.
Fig. 8 is a flowchart showing a position change frequency limiting method.
Fig. 9 is a block flow diagram of a cloud classroom management presentation board control method.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings 1 to 9 and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Embodiments of the application are described in further detail below with reference to the drawings.
The embodiment of the application discloses a control method of a cloud classroom management display board, which is characterized in that when a user performs cloud classroom teaching, the display area as large as possible is determined according to the positions of characters to be explained presented by the user to perform management display board display, so that the display effect of the management display board is better; meanwhile, when the areas of the display areas are consistent, the change of the positions of the management display board can be carried out according to the change of the explanation positions of the user, so that the user can watch the data in the management display board in real time
Referring to fig. 1, the method flow of the cloud classroom management display board control method includes the following steps:
step S100: and acquiring the outline of the interpretation character.
The character outline is interpreted as the outline of the text character required to be explained by the user, the background plate color of the file can be obtained, and then other color characters which are not the background plate color are determined in the desktop, so that the specific character outline is known.
Step S101: and establishing a display area with a rectangular shape at four preset corner points and determining a corresponding display area.
The corner points are corner points on the computer desktop, the display area is an area with one corner point as a vertex and two sides in rectangular shapes along the length and width directions of the computer desktop, each corner point is provided with an infinite display area, and a specific display area determination method is described below and is not repeated here; the display area is the area of the determined display area.
Step S102: whether the display area intersects with the outline of the interpretation character is judged.
The purpose of the judgment is to know whether the delimited display area can shield the characters required to be explained by the user, so as to know whether the management display board can influence the user to give lessons when displaying in the display area.
Step S1021: if the display area intersects the outline of the interpretation character, the display area is defined as an invalid area.
When the display area is intersected with the outline of the interpretation character, the management display board is indicated to influence the user to give lessons when displaying in the display area, and the display area is defined as an invalid area for identification so as to distinguish different display areas.
Step S1022: if the display area is not intersected with the outline of the interpretation character, the display area is defined as an effective area.
When the situation that the display area is intersected with the outline of the interpretation character does not exist, the fact that the user is not influenced in teaching when the management display board displays in the display area is explained, and the display area is defined as an effective area for identification at the moment so that the distinction of different display areas is achieved.
Step S103: and determining the display area with the largest numerical value in the effective areas determined by all the corner points according to a preset ordering rule, and performing management display on the display area corresponding to the display area.
The sorting rule is a method which is set by a worker in advance and can sort the values, such as an bubbling method, and the display area with the largest area can be determined in all the effective areas through the sorting rule so as to control the management display board to display in the display area, thereby ensuring that the display effect of the management display board is better.
Referring to fig. 2, the display area creation step includes:
step S200: and obtaining an upper limit length-width ratio and a lower limit length-width ratio.
The upper limit length-width ratio is the maximum length-width ratio of the required display area input by the user, and the lower limit length-width ratio is the minimum length-width ratio of the required display area input by the user, so that the size of the display area is determined, and the situation that the management display board displays in the flat display area and is inconvenient to observe is reduced.
Step S201: and establishing a rectangular coordinate system by taking the corner point as an origin, the preset long side of the desktop as an abscissa and the preset wide side of the desktop as an ordinate, defining a quadrant where the desktop is positioned in the rectangular coordinate system as a display quadrant, and acquiring a character transverse lower limit value and a character longitudinal lower limit value.
Referring to fig. 3, the long side of the desktop is the long side of the display desktop where the corner point is located, the wide side of the desktop is the wide side of the display desktop where the corner point is located, and display quadrants are defined to mark different quadrants, so that subsequent analysis is facilitated; the horizontal lower limit value of the character is the horizontal coordinate value of the coordinate point closest to the origin on the horizontal coordinate in the character, and the vertical lower limit value of the character is the vertical coordinate value of the coordinate point closest to the origin on the vertical coordinate in the character.
Step S202: a vertical straight line is determined on the display quadrant by the character horizontal lower limit value, and a horizontal straight line is determined on the display quadrant by the character vertical lower limit value.
The vertical straight line is a straight line perpendicular to the axis of abscissa and intersecting the character's lateral lower limit value, and the lateral straight line is a straight line perpendicular to the axis of ordinate and intersecting the character's longitudinal lower limit value.
Step S203: and establishing boundary rays taking the corner points as endpoints according to the upper limit length-width ratio and the lower limit length-width ratio in the display quadrant.
Referring to fig. 3, boundary rays are defined by taking a corner point as an end point, taking a corresponding aspect ratio value as a slope value, and the rest rays which take the corner point as the end point and are positioned between two boundary rays meet the aspect ratio value requirement.
Step S204: the desired area is determined from the longitudinal straight line, the transverse straight line and the boundary rays.
The required area is an area where the end point of the display area with the largest possible appearance area is located, which is formed by the surrounding of the longitudinal straight line, the transverse straight line and the boundary rays, so that the number of the display areas required to be produced subsequently is reduced, and data operation is reduced.
Step S205: and generating a randomly-moved demand point in the demand area, and determining the display area according to the demand point and the corner point serving as diagonal vertices.
The demand point is a point position capable of randomly moving in the demand area, the random movement needs to be satisfied with each position in the demand area to move, and the corresponding display area can be determined according to the demand point and the corner point.
Referring to fig. 4, after the maximum display area is determined, the cloud classroom management display board control method further includes:
step S300: the point of demand of the display area forming the maximum display area is defined as a fixed point.
Fixed points are defined to facilitate distinguishing between different points of demand, facilitating subsequent analysis.
Step S301: the display aspect ratio value is determined from the fixed point and the corner point.
The display aspect ratio value is a rectangular aspect ratio value of a display area formed by using a fixed point and corner points.
Step S302: and judging whether the display length ratio is in a preset comfort ratio range or not.
The comfort ratio range is a range of rectangular length-width ratio values which are set in advance by a worker and can enable eyes of a human body to be more comfortable to watch, and the purpose of judgment is to know whether the currently determined display area meets the comfort requirement.
Step S3021: and if the display length ratio is in the comfort ratio range, performing management display on the display board by using the display area corresponding to the display area.
When the display length ratio is in the comfort ratio range, the display area determined currently is indicated to have a better use effect for the user, and the management display board is normally used for displaying at the moment.
Step S3022: if the display length ratio is not in the comfort ratio range, the currently determined display area is defined as an upper limit area, and the display area of the display area determined in the comfort ratio range is defined as a pending area.
When the display length ratio is not in the comfort ratio range, the currently determined display area is not in the range of comfort of the eye watching effect of the user, and analysis can be continued at the moment; the upper limit area and the undetermined area are defined so as to distinguish the display areas of different display areas and facilitate subsequent analysis.
Step S303: and calculating according to the upper limit area and the undetermined area to determine the difference area.
The difference area is the difference of the determined area of the display area compared with the maximum display area, and is determined by subtracting the undetermined area from the upper limit area.
Step S304: and judging whether the difference area is smaller than the preset allowable change area or not.
The allowable change area is the maximum value of the area change when the ratio of length to width is changed by the allowable area set by the staff, the value can be set in advance by the staff, and can be correspondingly set according to the data condition required to be displayed, and the explanation is omitted herein below; the purpose of the judgment is to know the change of the display position of the management display board.
Step S3041: and if the area of the difference value is not smaller than the allowable change area, performing management display on the display board according to the currently determined display area.
When the area of the difference value is smaller than the allowable change area, the display area meeting the area requirement and the aspect ratio value requirement is not displayed, and the management display board is normally displayed in the display area with the determined maximum area.
Step S3042: if the difference area is smaller than the allowable change area, determining a display area with the smallest difference area according to the ordering rule, and displaying the management display board by using the display area.
When the area of the difference value is smaller than the allowable change area, the display areas meeting the area requirement and the aspect ratio value requirement are displayed, and the display area with the largest area is determined in the display areas so as to control the management display board to display in the display areas, so that the area meets the requirement, and meanwhile, the content displayed on the management display board can be watched by a user well.
Referring to fig. 5, the method further includes a determination step of a permissible variation area, the step including:
step S400: data byte information is acquired.
The size of the byte corresponding to the data byte information is the size of the data type to be displayed on the management display board, and the data to be monitored on the management display board can be obtained.
Step S401: and determining the corresponding required area of the data byte information according to a preset area matching relation.
The required area is the minimum area required when displaying the data with the byte size corresponding to the data byte information, different data with different numbers correspond to different required areas, and the area matching relation between the two is determined by staff in advance according to multiple experiments.
Step S402: and carrying out difference calculation according to the upper limit area and the required area to determine the deviation area.
The deviation area is the difference area between the largest display area and the required area, and is determined by subtracting the required area from the upper limit area.
Step S403: and judging whether the deviation area is smaller than a preset fixed area.
The fixed area is the maximum value of the area change after the display area is allowed to change, which is set by the staff, and the fixed value is set in advance by the staff, so as to judge whether the current area value capable of being adjusted exceeds the set value.
Step S4031: if the deviation area is smaller than the fixed area, the deviation area is used as the allowable change area.
When the deviation area is smaller than the fixed area, the area which can be adjusted at the moment is smaller, and the deviation area is taken as the allowable change area at the moment, so that the situation that the data of the management display board cannot be better displayed continuously after the display area is changed is avoided.
Step S4032: if the deviation area is not smaller than the fixed area, the fixed area is used as the allowable change area.
When the deviation area is not smaller than the fixed area, the area required to be changed is larger, and the fixed area is taken as the allowable change area at the moment, so that the situation that the display area of the management display board is changed greatly is reduced.
Referring to fig. 6, after determining the display area with the smallest difference area according to the sorting rule, the cloud class management display board control method further includes:
step S500: and judging whether at least two display areas with the smallest difference areas exist.
The purpose of the judgment is to determine whether the display area of the display board can be well managed for display.
Step S5001: and if at least two display areas with the smallest difference area do not exist, performing management display on the display board by using the determined display areas.
When at least two display areas with the smallest difference area do not exist, only a single display area is indicated to be selectable, and the management display board is normally used for displaying.
Step S5002: if at least two display areas with the smallest difference area exist, center position information is determined in the display areas, and mouse position information is obtained.
When at least two display areas with the smallest difference area exist, a plurality of display areas meeting the requirements are indicated to be available for selection, and at the moment, selection operation is needed; the position corresponding to the central position information is the position of the central point of the determined display area, and the position corresponding to the mouse position information is the position of the mouse mark on the computer desktop in the cloud classroom teaching process of the user.
Step S501: and calculating according to the central position information and the mouse position information to determine the distance information.
The distance value corresponding to the distance information is the distance value between the mouse and the center point of each display area, and can be obtained by calculating coordinates through the center position and the mouse position.
Step S502: and determining the distance information with the minimum corresponding distance value according to the ordering rule, and displaying the display area corresponding to the distance information on the management display board.
The nearest display area to the mouse can be determined by utilizing the ordering rule, the interpretation position of a teacher can be obtained by observing the position of the mouse, and the nearest display area is determined to display the management display board at the moment, so that a user can conveniently watch the data displayed on the management display board in the interpretation process.
Referring to fig. 7, if there are at least two display areas with the smallest difference area, the cloud classroom management display board control method further includes:
step S600: and judging whether the display areas with the smallest difference areas are all display areas formed by the same corner points.
The purpose of the judgment is to know whether the selectable display areas are all at the same corner of the desktop.
Step S6001: and if the display area with the smallest difference area is not the display area formed by the corner points of the same side, acquiring the mouse position information to determine the display area displayed by the management display board.
When the display area with the smallest difference area is not the display area formed by the corner points of the same side, the management display board can display at different corners, and the position of the management display board can be adjusted normally according to the mouse.
Step S6002: if the display areas with the smallest difference areas are all display areas formed by the same corner points, calculating according to the demand points and the corner points of each display area to determine the undetermined demand ratio.
When the display areas with the smallest difference areas are all display areas formed by the corner points on the same side, the management display board is only changed at the same corner, the condition that the management display board is convenient for a user to watch is avoided, the adjustment of the display areas is not needed, and only the display areas needing to be displayed are needed to be determined; the undetermined demand ratio is an aspect ratio value of the display area determined by the demand point and the corner point.
Step S601: and calculating a difference value according to the undetermined demand ratio and a preset standard demand ratio to determine a deviation ratio.
The standard demand ratio is a length-width ratio value of the display area, which is set by a worker in advance and enables the user to have the best viewing effect, the deviation ratio is a difference value of the length-width ratio value of the currently selectable display area, which is the best length-width ratio value, and the absolute value is solved to determine the standard demand ratio after subtracting the standard demand ratio from the undetermined demand ratio.
Step S602: and determining a deviation ratio with the smallest numerical value according to the ordering rule, and carrying out management display board display on the corresponding display area according to the deviation ratio, wherein the display area is not changed.
The display area closest to the optimal viewing effect can be determined by using the ordering rule so as to carry out management display on the display board, and the display area is not changed at the same corner at the moment, so that the condition that the user has dazzling is reduced.
Referring to fig. 8, after determining the display area according to the distance information, the cloud classroom management display board control method further includes:
step S700: it is determined whether a change in the display area is required.
The purpose of the judgment is to know whether the management display board is needed to be displayed at different corners of the desktop at present.
Step S7001: if the display area does not need to be changed, the original display area is maintained.
When the display area does not need to be changed, the display of the management display board is stable.
Step S7002: if the display area needs to be changed, controlling the countdown of a preset fixed time length, defining the current display area to be displayed as a working area, and defining the display area needing to be changed as a replacement area.
When the display area needs to be changed, the situation that the mouse of the user moves to change the area to be displayed by the management display board is described, and at the moment, the situation that the user moves the mouse faster and does not talkback the content to change possibly exists, and further analysis is needed; the fixed time length is a fixed time length set by a worker, the countdown of the fixed time length is controlled to analyze the change condition of the display area of the management display board, and the operation area and the replacement area are defined so as to distinguish different display areas.
Step S701: and judging whether the replacement area is changed or not in the fixed duration countdown process.
The purpose of the judgment is to know whether the content taught by the user is fixed.
Step S7011: and if the replacement area is changed, controlling the fixed time to reset and re-time.
When the replacement area is changed, the explanation content is not fixed, and timing is performed again at the moment so as to determine the specific explanation position.
Step S7012: and if the replacement area is unchanged, the management display board is displayed in the display area after the fixed time length is reset.
When the replacement area is unchanged, the position of the explanation content is fixed, and the display area is switched at the moment, so that the condition that a user continuously moves a mouse to enable the management display board to continuously switch and display is reduced, and the display stability of the management display board is improved.
Referring to fig. 9, based on the same inventive concept, an embodiment of the present application provides a cloud classroom management display board control system, including:
the acquisition module is used for acquiring the outline of the interpretation character;
the processing module is connected with the acquisition module and the judging module and is used for storing and processing information;
the judging module is connected with the acquisition module and the processing module and is used for judging information;
the processing module establishes a display area with a rectangular shape at four preset corner points and determines a corresponding display area;
the judging module judges whether the condition that the display area is intersected with the outline of the interpretation character exists or not;
if the judging module judges that the condition that the display area is intersected with the outline of the interpretation character exists, the processing module defines the display area as an invalid area;
if the judging module judges that the condition that the display area is intersected with the outline of the interpretation character does not exist, the processing module defines the display area as an effective area;
the processing module determines the display area with the largest numerical value in the effective area determined by all the corner points according to a preset ordering rule, and performs management display on a display area corresponding to the display area;
the display area establishing module is used for establishing a display area with a proper length-width ratio value according to the actual requirement of a user;
the display position change module is used for determining and changing the display position of the management display board according to the area condition of the display area;
the permission change area determining module is used for determining a proper permission change area;
the display position adjusting module is used for adjusting the display position according to different interpretation positions of the user so as to facilitate the user to manage the display board to watch;
the display position determining module is used for determining a plurality of selectable display areas at the corner points of the same side so as to determine a proper display area for the management display board to display;
and the change frequency limiting module is used for limiting the frequency of the position change of the management display board so as to reduce the condition of dazzling.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to perform all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.
Claims (8)
1. The cloud classroom management display board control method is characterized by comprising the following steps of:
acquiring the outline of the interpretation character;
establishing a display area with a rectangular shape at four preset corner points and determining a corresponding display area;
judging whether a display area is intersected with the outline of the interpretation character or not;
if the display area is intersected with the outline of the interpretation character, defining the display area as an invalid area;
if the condition that the display area is intersected with the outline of the interpretation character does not exist, defining the display area as an effective area;
and determining the display area with the largest numerical value in the effective areas determined by all the corner points according to a preset ordering rule, and performing management display on the display area corresponding to the display area.
2. The cloud class management presentation board control method of claim 1, wherein the step of creating the display area comprises:
acquiring an upper limit length-width ratio and a lower limit length-width ratio;
establishing a rectangular coordinate system by taking a corner point as an origin, a preset long side of a desktop as an abscissa and a preset wide side of the desktop as an ordinate, defining a quadrant where the desktop is located in the rectangular coordinate system as a display quadrant, and acquiring a character transverse lower limit value and a character longitudinal lower limit value;
determining a longitudinal straight line on the display quadrant by using the character transverse lower limit value, and determining a transverse straight line on the display quadrant by using the character longitudinal lower limit value;
establishing boundary rays taking edge points as endpoints according to the upper limit length-width ratio and the lower limit length-width ratio in the display quadrant;
determining a required area according to the longitudinal straight line, the transverse straight line and the boundary rays;
and generating a randomly-moved demand point in the demand area, and determining the display area according to the demand point and the corner point serving as diagonal vertices.
3. The control method of the cloud classroom management display board according to claim 2, wherein after the maximum display area is determined, the control method of the cloud classroom management display board further comprises:
defining a demand point of a display area forming a maximum display area as a fixed point;
determining a display aspect ratio value according to the fixed point and the corner point;
judging whether the display length ratio is in a preset comfort ratio range or not;
if the display length ratio is in the comfort ratio range, the management display board is used for displaying in the display area corresponding to the display area;
if the display length ratio is not in the comfort ratio range, defining the currently determined display area as an upper limit area, and defining the display area of the display area determined in the comfort ratio range as a pending area;
calculating according to the upper limit area and the area to be determined to determine the difference area;
judging whether the difference area is smaller than a preset allowable change area or not;
if the area of the difference value is smaller than the allowable change area, performing management display on the display board according to the currently determined display area;
if the difference area is smaller than the allowable change area, determining a display area with the smallest difference area according to the ordering rule, and displaying the management display board by using the display area.
4. The control method of cloud classroom management display board according to claim 3, further comprising a determination step of a permissible variation area, the step comprising:
acquiring data byte information;
determining a required area corresponding to the data byte information according to a preset area matching relation;
calculating a difference value according to the upper limit area and the required area to determine a deviation area;
judging whether the deviation area is smaller than a preset fixed area or not;
if the deviation area is smaller than the fixed area, taking the deviation area as an allowable change area;
if the deviation area is not smaller than the fixed area, the fixed area is used as the allowable change area.
5. The control method of the cloud classroom management display board according to claim 3, wherein after determining the display area with the smallest difference area according to the sorting rule, the control method of the cloud classroom management display board further comprises:
judging whether at least two display areas with the smallest difference areas exist or not;
if at least two display areas with the smallest difference area do not exist, the management display board is used for displaying according to the determined display areas;
if at least two display areas with the smallest difference area exist, center position information is determined in the display areas, and mouse position information is obtained;
calculating according to the central position information and the mouse position information to determine the distance information;
and determining the distance information with the minimum corresponding distance value according to the ordering rule, and displaying the display area corresponding to the distance information on the management display board.
6. The control method of the cloud classroom management display board according to claim 5, wherein if there are at least two display areas with the smallest difference areas, the control method of the cloud classroom management display board further comprises:
judging whether the display areas with the smallest difference areas are all display areas formed by the corner points on the same side;
if the display area with the smallest difference area is not the display area formed by the corner points of the same side, acquiring the position information of the mouse to determine the display area displayed by the management display board;
if the display areas with the smallest difference areas are all display areas formed by the same corner points, calculating according to the demand points and the corner points of each display area to determine the undetermined demand ratio;
calculating a difference value according to the undetermined demand ratio and a preset standard demand ratio to determine a deviation ratio;
and determining a deviation ratio with the smallest numerical value according to the ordering rule, and carrying out management display board display on the corresponding display area according to the deviation ratio, wherein the display area is not changed.
7. The control method of the cloud classroom management display board according to claim 5, wherein after determining the display area according to the distance information, the control method of the cloud classroom management display board further comprises:
judging whether the display area needs to be changed or not;
if the display area does not need to be changed, maintaining the original display area;
if the display area needs to be changed, controlling the countdown of a preset fixed time length, defining the display area which is currently displayed as an operation area, and defining the display area which needs to be changed as a replacement area;
judging whether the replacement area changes or not in the process of counting down the fixed duration;
if the replacement area is changed, controlling the fixed time length to reset and re-timing;
and if the replacement area is unchanged, the management display board is displayed in the display area after the fixed time length is reset.
8. A cloud classroom management display board control system, comprising:
the acquisition module is used for acquiring the outline of the interpretation character;
the processing module is connected with the acquisition module and the judging module and is used for storing and processing information;
the judging module is connected with the acquisition module and the processing module and is used for judging information;
the processing module establishes a display area with a rectangular shape at four preset corner points and determines a corresponding display area;
the judging module judges whether the condition that the display area is intersected with the outline of the interpretation character exists or not;
if the judging module judges that the condition that the display area is intersected with the outline of the interpretation character exists, the processing module defines the display area as an invalid area;
if the judging module judges that the condition that the display area is intersected with the outline of the interpretation character does not exist, the processing module defines the display area as an effective area;
the processing module determines the display area with the largest numerical value in the effective areas determined by all the corner points according to a preset ordering rule, and manages and displays the display board in the display area corresponding to the display area.
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