CN116215119A - Automatic lifting blackboard, control method and device - Google Patents
Automatic lifting blackboard, control method and device Download PDFInfo
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- CN116215119A CN116215119A CN202310035051.7A CN202310035051A CN116215119A CN 116215119 A CN116215119 A CN 116215119A CN 202310035051 A CN202310035051 A CN 202310035051A CN 116215119 A CN116215119 A CN 116215119A
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000009471 action Effects 0.000 claims description 48
- 230000004044 response Effects 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000001815 facial effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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Abstract
The invention provides an automatic lifting blackboard, a control method and a device, which are characterized by comprising the following steps: the device comprises a base, a first plate body, a second plate body, a display screen, a lifting mechanism and an image acquisition part; the lifting mechanism is connected with the base and can drive the base to adjust the relative position along the first direction; the first plate body and the display screen are arranged in the base; the second plate body is in sliding connection with the base, and moves along a second direction so as to realize movement between the first plate body and the display screen, wherein the first direction and the second direction are perpendicular to each other; the image acquisition part is connected with the base, is arranged at the top of the base and is used for acquiring height characteristic parameters of a user; wherein the first plate body and the second plate body form a writing area of the blackboard writing; the display screen forms the display area of the courseware. According to the invention, the lifting mechanism and the image acquisition part are arranged to acquire height characteristic information of a teacher, and the height of the blackboard is adaptively adjusted according to different heights of the teacher, so that the position of the teacher is always in the center of a picture during class recording.
Description
Technical Field
The invention relates to the technical field of teaching equipment, in particular to an automatic lifting blackboard, a control method and a device.
Background
The traditional blackboard is a main medium for teaching, a teacher teaches knowledge to students through writing on the blackboard, but the heights of the teachers are different, the height of the blackboard cannot be adjusted by the user according to the heights of the teachers, writing is inconvenient, and teaching experience of the teacher can be greatly reduced.
In recent years, online teaching or recorded video playing courses become the just-needed requirement of each school, the quality of live broadcast or recorded video directly determines the quality of the student class listening effect, and the heights of teachers are different.
Disclosure of Invention
The invention provides an automatic lifting blackboard which aims to solve the problem that the height of the blackboard cannot be adjusted adaptively according to the height of a teacher.
The invention also provides a control method for the automatic lifting blackboard.
The invention also provides a control device for automatically lifting the blackboard.
According to a first aspect of the present invention, there is provided an automatic lifting blackboard comprising: the device comprises a base, a first plate body, a second plate body, a display screen, a lifting mechanism and an image acquisition part; the lifting mechanism is connected with the base and can drive the base to adjust the relative position along a first direction; the first plate body and the display screen are arranged in the base; the second plate body is in sliding connection with the base, and moves along a second direction so as to realize movement between the first plate body and the display screen, wherein the first direction and the second direction are perpendicular to each other; the image acquisition part is connected with the base, is arranged at the top of the base and is used for acquiring height characteristic parameters of a user; wherein the first plate body and the second plate body form a writing area of an blackboard writing; the display screen forms a display area of the courseware.
According to one embodiment of the invention, the lifting mechanism comprises: a frame body and a lifting part; the frame body is connected with the base; the lifting part is arranged on the wall body, connected with the frame body and used for driving the base to adjust the relative position along the first direction.
According to one embodiment of the invention, the lifting mechanism further comprises: the reinforcing ribs are arranged at intervals along the first direction and/or the second direction and are connected with the frame body.
According to one embodiment of the present invention, the display screen is a touch screen, so as to implement a touch operation on the display area.
According to a second aspect of the present invention, a control method for the automatic lifting blackboard includes: responding to a lifting instruction, and acquiring a target position parameter and an instant position parameter of the base; generating an adjustment strategy according to the target position parameter and the instant position parameter; and controlling the lifting mechanism to adjust the position of the base according to the adjustment strategy.
According to an embodiment of the present invention, the step of obtaining the target position parameter and the instant position parameter of the base specifically includes: acquiring height characteristic parameters of a user; and generating target position parameters of the base according to the height characteristic parameters.
According to an embodiment of the present invention, the step of generating the target position parameter of the base according to the height characteristic parameter further includes: judging according to the height characteristic parameters; if the height characteristic parameters are in a first preset interval, setting the target position parameters of the base to be a first preset value; if the height characteristic parameter is in a second preset interval, setting the target position parameter of the base as a second preset value; and if the height characteristic parameter is in a third preset interval, setting the target position parameter of the base to be a third preset value.
According to an embodiment of the present invention, the step of responding to the lifting command specifically includes: responding to a trigger signal for identifying an adjustment area on the display screen; acquiring action characteristic parameters in the adjusting area, and judging according to the action characteristic parameters; in a first acquisition time period, determining N first action characteristic values of which the trigger frequency in the adjustment area meets a preset frequency threshold, generating the lifting instruction according to the N first action characteristic values, wherein N is a positive integer greater than or equal to 2, and the first action characteristic values are single-point actions of which the trigger time is less than a preset time; or in the first acquisition time period, determining M second action characteristic values of which the triggering interval duration in the adjustment area meets a preset interval threshold, wherein the M second action characteristic values at least comprise 1 continuous sliding signal in the adjustment area, and generating the lifting instruction according to the M second action characteristic values, wherein M is a positive integer greater than or equal to 2.
According to an embodiment of the present invention, the step of generating the adjustment policy according to the target location parameter and the instant location parameter specifically includes: acquiring a third action characteristic value in the adjusting area in a second acquisition time period, wherein the third action characteristic value is the coordinate of the target point identified on the adjusting area or the identified target point track and the moving track of the target point track; and generating the target position parameter according to the target point coordinates or the movement track.
According to an embodiment of the present invention, the step of responding to the lifting command specifically includes: responsive to a voice signal identifying the base position adjustment; and generating the lifting instruction according to the voice signal.
According to an embodiment of the present invention, the step of generating the adjustment policy according to the target location parameter and the instant location parameter specifically includes: acquiring a first voice feature and a second voice feature of the voice signal, wherein the first voice feature points to a starting feature of the base position adjustment, and the second voice feature points to a target feature of the base moving position; and generating the target position parameter according to the first voice characteristic and the second voice characteristic.
According to a third aspect of the present invention, there is provided a control device for automatically lifting and lowering a blackboard, comprising: the system comprises a response acquisition module, a strategy generation module and a strategy execution module; the response acquisition module is used for responding to the lifting instruction and acquiring the target position parameter and the instant position parameter of the base; the strategy generation module is used for generating an adjustment strategy according to the target position parameter and the instant position parameter; the strategy execution module is used for controlling the lifting mechanism to adjust the position of the base according to the adjustment strategy.
The above technical solutions in the present invention have at least one of the following technical effects: according to the automatic lifting blackboard, the control method and the device, the lifting mechanism is connected with the base to drive the base to move along the first direction, the first board body and the display screen are arranged in the base, the second board body is connected with the base in a sliding mode and can move along the second direction, the first board body and the second board body form a writing area for teachers to write, the display screen forms a display area of courseware, the image acquisition part is arranged to acquire height characteristic information of the teacher, so that height of the blackboard is adjusted adaptively according to different heights of the teacher, teaching experience of the teacher is improved, the position of the teacher is always in the center of a picture when the teacher is in writing, video recording quality is improved, in addition, the blackboard and the teaching all-in-one machine are combined on an integral structure, so that the effect of different scene conversion is achieved, and convenience in writing of teachers with different heights is solved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings that are used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an automatic lifting blackboard according to the present invention;
FIG. 2 is a second schematic diagram of the automatic lifting blackboard according to the present invention;
FIG. 3 is a third schematic view of the automatic lifting blackboard according to the present invention;
FIG. 4 is a schematic diagram of an automatic lifting blackboard according to the present invention;
FIG. 5 is a schematic flow chart of a control method of an automatic lifting blackboard provided by the invention;
FIG. 6 is a second flow chart of the method for controlling the automatic lifting blackboard according to the present invention;
FIG. 7 is a third flow chart of the method for controlling the automatic lifting blackboard according to the present invention;
FIG. 8 is a flow chart of a method for controlling an automatically lifting blackboard according to the present invention;
FIG. 9 is a fifth flow chart of the method for controlling the automatic lifting blackboard according to the present invention;
FIG. 10 is a flowchart of a method for controlling an automatically lifting blackboard according to the present invention;
fig. 11 is a schematic diagram of connection relation of each module in the control device for the automatic lifting blackboard.
Reference numerals:
10. a base; 12. an image acquisition unit; 20. a first plate body; 30. a second plate body; 40. a display screen; 50. a lifting mechanism; 52. a frame body; 54. a lifting part; 56. reinforcing ribs; 60. a response acquisition module; 70. a policy generation module; 80. and a policy execution module.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present embodiment more apparent, the technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is apparent that the described embodiment is a part of the embodiment of the present invention, but not all the embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The automatic lifting blackboard, the control method and the device of the present invention are described below with reference to fig. 1 to 8.
Fig. 1 is a schematic structural diagram of an automatic lifting blackboard provided by the present invention, and according to fig. 1 and 4, the automatic lifting blackboard provided by the present invention includes: the base 10, first plate body 20, the second plate body 30, display screen 40 and image acquisition portion 12, first plate body 20 and display screen 40 set up in the base 10, second plate body 30 and base 10 sliding connection can follow the second direction and remove, first plate body 20 and second plate body 30 form the writing area of blackboard writing, display screen 40 forms the display area of courseware, image acquisition portion 12 sets up in the base 10 top, gather teacher's height characteristic information, in order to realize according to different teacher heights, the adaptation is highly adjusted the blackboard, can make the teacher's position be in the central authorities of picture all the time when recording the lesson, improve the quality of recording the video.
It should be noted that the second plate 30 is slidably connected to the base 10 to realize the movement in the second direction, where the movement of the second plate 30 may be driven by an additional driving mechanism, or the movement of the second plate 30 may be realized by applying force by a hand, which is not limited in particular by the present invention.
The image acquisition unit may be a camera, an infrared sensing device, etc., and only needs to be able to acquire the height characteristic parameters of the current user, which is not particularly limited by the present invention.
According to the present invention, as shown in fig. 2, there is provided an automatic lifting blackboard, in which the lifting portion 54 is provided differently from the automatic lifting blackboard shown in fig. 1, and the driving mechanism is located below the blackboard.
According to fig. 3, the automatic lifting blackboard provided by the invention further comprises a lifting mechanism 50, wherein the lifting mechanism 50 further comprises: the frame body 52, the lifting part 54 and the reinforcing ribs 56, the frame body 52 is connected with the base 10, the lifting part 54 is connected with the frame body 52 and is arranged on a wall body, and the plurality of reinforcing ribs 56 are arranged at intervals along the first direction and/or the second direction and are connected with the frame body 52. The reinforcing ribs 56 enhance the weighing capability of the frame 52, and the lifting portion 54 is used for driving the base 10 to move along the first direction, so as to be suitable for teachers with different heights to give lessons and record courses.
According to the automatic lifting blackboard provided by the invention, the lifting mechanism 50 is arranged, the lifting mechanism 50 is connected with the base 10 to drive the base 10 to move along the first direction, the first board body 20 and the display screen 40 are arranged in the base 10, the second board body 30 is slidably connected with the base 10 and can move along the second direction, the first board body 20 and the second board body 30 form a writing area for teachers to write, and the display screen 40 forms a display area of courseware for playing courseware or performing other operations. Blackboard and teaching all-in-one combine blackboard writing and class function on an overall structure to reach the effect that a equipment was solved different scene and change, and solved the convenience of writing when different height mr lectures, and can shoot the problem of optimal scene when recording the course, improved the quality of video of recording, improved student's class experience of listening.
Fig. 5 is a flowchart of a control method for an automatic lifting blackboard provided by the invention, and as shown in fig. 5, the control method for an automatic lifting blackboard provided by the invention comprises the following steps:
step 100: in response to the elevation command, acquiring a target position parameter and an instant position parameter of the base 10;
specifically, when the user needs to adjust the height of the blackboard, a lifting instruction for automatically lifting the blackboard is sent, and after the lifting instruction is responded, the target position parameter of the base 10 in the lifting instruction, namely, the target position which is needed to be reached according to the adjusted blackboard, and the instant position parameter, namely, the real-time position of the base 10 in the moving process are obtained.
Step 200: generating an adjustment strategy according to the target position parameter and the instant position parameter;
specifically, after the target position parameter is obtained, the real-time position parameter is obtained, and then the corresponding adjustment strategy is generated based on the target position required to be reached by the base 10 and the real-time position parameter of the base 10 in the moving process.
Step 300: the lifting mechanism 50 is controlled to adjust the position of the base 10 according to an adjustment strategy.
It should be noted that, the above-mentioned control method of automatically lifting the blackboard needs to be executed in combination with the response acquisition module 60, the policy generation module 70, and the policy execution module 80.
Based on the above embodiment, fig. 6 is a schematic flow chart of another method for controlling an automatically lifting blackboard according to the present invention, as shown in fig. 6, in step 100, in the step of responding to the lifting command, the method further includes:
step 130: acquiring height characteristic parameters of a user;
step 140: target position parameters of the base 10 are generated from the height characteristic parameters.
Specifically, the heights of teachers are different, when teaching, the heights of the blackboard not only influence the blackboard writing teaching experience of the teacher and the teaching experience of students, but also influence the recorded video quality when recording the courses, the height characteristic parameters of the user are obtained, and the target positions of the base are intelligently generated according to the height characteristic parameters, so that the heights of the blackboard are adaptively adjusted according to different heights of the teacher, the teaching experience of the teacher is improved, the position of the teacher is always in the center of a picture when recording the lessons, and the quality of recorded video is improved.
In a possible implementation manner, the image acquisition part can integrate the face recognition function at the same time, the facial features of the current user are identified while the height feature parameters of the user are acquired, the user can preset corresponding base target position parameters under different facial features in advance, when a teacher who acquires the facial features needs to give lessons and record lessons, the target of the base is determined in a face recognition mode, an adjustment strategy is generated according to the real-time position parameters of the base, and the height of the blackboard is automatically adjusted through the lifting mechanism according to the adjustment strategy.
Based on the above embodiment, fig. 7 is a schematic flow chart of a control method for automatically lifting a blackboard according to the present invention, as shown in fig. 7, in step 100, the method further includes:
step 150: if the height characteristic parameter is within a first preset interval, setting a target position parameter of the base 10 to a first preset value;
step 160: if the height characteristic parameter is within a second preset interval, setting a target position parameter of the base 10 to a second preset value;
step 170: and if the height characteristic parameter is within a third preset interval, setting the target position parameter of the base 10 to a third preset value.
Specifically, through preset first preset interval, second preset interval, third preset interval and three preset values, when the height of the teacher is in a certain preset interval, the target position of the base can be determined according to the height, and the height of the blackboard is adaptively adjusted so as to ensure that the teacher is at the central position of the picture when recording courses.
In a possible implementation manner, the first preset interval is 150cm to 160cm, the first preset value is 155cm, when the body height of a teacher is within the first preset interval, the target position parameter of the base is set to the first preset value, that is, the center height of the blackboard is adjusted to the first preset value, so that the teacher is ensured to record courses at the center position of the picture.
In a possible implementation manner, the first preset interval is 160cm to 170cm, the second preset value is 165cm, when the body height of a teacher is within the first preset interval, the target position parameter of the base is set to the second preset value, that is, the center height of the blackboard is adjusted to the second preset value, so that the teacher is ensured to record courses at the center position of the picture.
In a possible implementation manner, the first preset interval is 170cm to 190cm, the first preset value is 180cm, when the body height of a teacher is within the third preset interval, the target position parameter of the base is set to the third preset value, that is, the center height of the blackboard is adjusted to the third preset value, so that the teacher is ensured to record courses at the center position of the picture.
It should be noted that, the user can adjust the endpoint value and the preset value of the preset interval according to the height of the teacher who uses the lifting blackboard frequently.
Based on the above embodiments, fig. 8 is a schematic flow chart of another control method for automatically lifting a blackboard according to the present invention, as shown in fig. 8, in step 100, in the step of responding to a lifting command, the method specifically includes:
step 110: in response to a trigger signal identifying an adjustment area on display screen 40;
specifically, when the height of the blackboard needs to be adjusted, the user clicks the display screen 40 in the adjustment area on the display screen 40, the display screen 40 sends a trigger signal, and the response acquisition module 60 responds to the trigger signal.
Step 120: acquiring action characteristic parameters in the adjusting area, and judging according to the action characteristic parameters;
in a first acquisition time period, determining N first action characteristic values of which the trigger frequency in the adjustment area meets a preset frequency threshold, generating a lifting instruction according to the N first action characteristic values, wherein N is a positive integer greater than or equal to 2, and the first action characteristic values are single-point actions of which the trigger time is less than the preset time;
or in the first acquisition time period, determining M second action characteristic values with the triggering interval duration meeting a preset interval threshold in the adjustment area, wherein the M second action characteristic values at least comprise 1 continuous sliding signal in the adjustment area, and generating a lifting instruction according to the M second action characteristic values, wherein M is a positive integer greater than or equal to 2.
Specifically, in a first acquisition time period, judging whether a first action characteristic value of a user, namely the trigger frequency of single-point action with the trigger time length smaller than a preset time length, meets a preset frequency threshold or not, namely judging whether the user clicks a screen at a preset frequency or not; and in the second acquisition time period, judging whether a second action characteristic value of the user, namely the triggering interval duration of the sliding signals in the adjusting area, meets a preset interval threshold value, namely judging whether the user performs sliding operation in the adjusting area at the preset interval time.
It should be noted that, generally, under the circumstance that one person is in front of the blackboard, the height of the blackboard is automatically adjusted through the collected height characteristic parameters of the user, when the condition that more persons are in front of the blackboard, the blackboard is not easy to accurately position to a specific user, at this time, the height of the blackboard can be adjusted through a manual adjustment mode, or when the blackboard is automatically adjusted, the user feels that the height of the blackboard is deviated, and fine adjustment can be further performed through a manual adjustment mode, so that the most central position of a picture is ensured.
Based on the above embodiment, fig. 9 is a schematic flow chart of another method for controlling an automatically lifting blackboard according to the present invention, as shown in fig. 9, in step 100, in the step of responding to the lifting command, the method further includes:
step 130: a voice signal responsive to the position adjustment of the identification base 10;
step 140: and generating a lifting instruction according to the voice signal.
Specifically, compared to the above embodiment, that is, by clicking and sliding the screen in the adjustment area of the display screen 40, the user may also send out a voice control instruction to the response obtaining module 60 of the control device in a voice control manner, where the response obtaining module 60 responds to the voice signal and generates a corresponding lifting instruction according to the voice signal.
Based on the above embodiment, fig. 10 is a schematic flow chart of another control method for automatically lifting and lowering a blackboard according to the present invention, as shown in fig. 10, in step 200, in the step of generating an adjustment strategy according to a target position parameter and an instant position parameter, the method further includes:
step 210: acquiring a first voice feature and a second voice feature of the voice signal, wherein the first voice feature points to a starting feature of position adjustment of the base 10, and the second voice feature points to a target feature of a moving position of the base 10;
specifically, after the response acquisition module 60 responds to the voice signal, the first voice feature and the second voice feature in the voice signal are acquired, wherein the first voice feature and the second voice feature are respectively the start feature for adjusting the position of the base 10 and the target feature for moving the position.
Step 220: and generating target position parameters according to the first voice characteristics and the second voice characteristics.
Specifically, the first voice feature determines whether to activate the elevating mechanism 50, adjusts the relative position of the base 10 along the first direction, and the second voice feature is a target feature to which the base 10 needs to be moved, and the response acquisition module 60 generates the target position parameter based on the first voice feature and the second voice feature.
Fig. 11 is a schematic diagram of connection relation between each module in the control device for an automatic lifting blackboard provided by the invention, and as shown in fig. 11, the control device for an automatic lifting blackboard provided by the invention comprises: the response obtaining module 60, the policy generating module 70 and the policy executing module 80 are configured to respond to the lifting instruction and obtain the target position parameter and the instant position parameter of the base 10, generate an adjustment policy by the policy generating module 70 according to the two parameters, and finally adjust the base 10 by the policy executing module 80 according to the generated adjustment policy, so as to realize lifting of the blackboard.
Some embodiments of the invention, as shown in fig. 1 to 11, include: a base 10, a first plate 20, a second plate 30, a display 40, a lifting mechanism 50, and an image pickup section 12; the lifting mechanism 50 is connected with the base 10 and can drive the base 10 to adjust the relative position along the first direction; the first plate 20 and the display screen 40 are arranged in the base 10; the second plate 30 is slidably connected to the base 10, and the second plate 30 moves in a second direction to achieve movement between the first plate 20 and the display screen 40, the first direction and the second direction being perpendicular to each other; the image acquisition part 12 is connected with the base 10 and is arranged at the top of the base 10 and used for acquiring height characteristic parameters of a user; wherein the first plate 20 and the second plate 30 form a writing area of an blackboard writing; the display 40 forms the display area of the courseware.
Specifically, although the conventional blackboard can meet the basic demands of writing and teaching, the teacher has a large workload, a large amount of writing is required while the teacher gives lessons orally, and students are likely to feel boring in the course of teaching. According to the invention, the lifting mechanism 50 is arranged, the lifting mechanism 50 is connected with the base 10 to drive the base 10 to move along the first direction, the first plate body 20 and the display screen 40 are arranged in the base 10, the second plate body 30 is connected with the base 10 in a sliding manner and can move along the second direction, the first plate body 20 and the second plate body 30 form a writing area for teachers to board books, and the display screen 40 forms a display area of courseware for playing courseware or performing other operations. Blackboard and teaching all-in-one combine blackboard writing and function of recording lessons on an overall structure to reach the effect that a piece of equipment was solved different scene conversions, and solved convenience of writing when the mr of different heights taught.
When the courseware does not need to be played, the first board 20 and the second board 30 are on the same plane, the second board 30 slides to the position of the display screen 40 along the second direction, and a teacher can perform blackboard writing in the writing area of the first board 20 and the second board 30.
When the courseware needs to be played, the second board 30 is slidably connected with the base 10, and the second board 30 moves along the second direction to expose the display area where the display screen 40 is located, so as to play the courseware.
It should be further noted that, when the heights of the teachers are different, the height of the blackboard can be adjusted at any time through the lifting mechanism 50, so as to solve the convenience of writing when the teacher with different heights gives lessons and the problem that the teacher can shoot the optimal scene when recording the lessons, and improve the recorded video quality.
According to one embodiment of the present invention, the elevating mechanism 50 includes: a frame 52 and a lifting part 54; the frame 52 is connected with the base 10; the lifting portion 54 is disposed on the wall and connected to the frame 52, and is used for driving the base 10 to adjust the relative position along the first direction.
Specifically, the lifting mechanism 50 is composed of a frame 52 and a lifting part 54, wherein the frame 52 is connected with the base 10, the lifting part 54 is arranged on a wall and connected with the frame 52, the lifting part 54 drives the frame 52 to drive the base 10 to adjust the relative position along the first direction, and the height of the blackboard is adjusted at any time, so that the convenience of writing of teachers with different heights is solved, the problem that an optimal scene can be shot when a course is recorded, and the recorded video quality is improved.
According to one embodiment of the invention, the lifting mechanism 50 further comprises: the reinforcing ribs 56, and a plurality of reinforcing ribs 56 are disposed at intervals along the first direction and/or the second direction and connected to the frame 52.
Specifically, by arranging the reinforcing ribs 56, the plurality of reinforcing ribs 56 are connected with the frame 52 along the first direction and/or the second direction, so that the frame 52 can support larger weight, and the safety problem of the blackboard-teaching integrated machine in the lifting process is guaranteed.
In a specific embodiment, the total weight of the blackboard-teaching integrated machine is about 120kg, the base 10 and the frame 52 are about 80kg, the lifting force of the motor is greater than 250kg under the premise of ensuring redundancy backup, and in the fixing mode of the wall, holes are formed in the side edges of the lifting mechanism 50 as far as possible, and the fixing is performed by fixing expansion screws and the like.
According to one embodiment of the present invention, the display screen 40 is a touch screen to implement a touch operation on the display area.
In some specific embodiments of the present invention, the present invention provides a control method for automatically lifting a blackboard, including: in response to the elevation command, acquiring a target position parameter and an instant position parameter of the base 10; generating an adjustment strategy according to the target position parameter and the instant position parameter; the lifting mechanism 50 is controlled to adjust the position of the base 10 according to an adjustment strategy.
Specifically, the invention also provides a control method for automatically lifting the blackboard, which is used for solving the defects in the prior art, and generating a corresponding adjustment strategy based on the acquired target position parameter and the instant position parameter of the base 10 by responding to the lifting instruction, and adjusting the relative position of the base 10 along the first direction according to the adjustment strategy, thereby meeting the convenience of writing when teachers with different heights teach and improving the quality of recorded videos.
According to an embodiment of the present invention, the step of obtaining the target position parameter and the instant position parameter of the base specifically includes: acquiring height characteristic parameters of a user; and generating target position parameters of the base according to the height characteristic parameters.
Specifically, through obtaining user's height characteristic parameter to according to the target position of height characteristic parameter intelligent generation base, with realizing according to different teacher heights, the adaptation is adjusted the blackboard height, promotes teacher's blackboard writing and gives lessons and experience, when can make the teacher's position in the central authorities of picture all the time when recording the lessons, improves the quality of recording the video.
According to an embodiment of the present invention, the step of generating the target position parameter of the base according to the height characteristic parameter further includes: judging according to the height characteristic parameters; if the height characteristic parameters are in a first preset interval, setting the target position parameters of the base to be a first preset value; if the height characteristic parameter is in a second preset interval, setting the target position parameter of the base as a second preset value; and if the height characteristic parameter is in a third preset interval, setting the target position parameter of the base to be a third preset value.
Specifically, when the height of the teacher is within a certain preset interval, the target position of the base can be determined according to the height, and the height of the blackboard can be adaptively adjusted so as to ensure that the teacher is at the central position of the picture when the lesson is recorded.
According to one embodiment of the present invention, the step of responding to the lifting instruction specifically includes: in response to a trigger signal identifying an adjustment area on display screen 40; acquiring action characteristic parameters in the adjusting area, and judging according to the action characteristic parameters; in a first acquisition time period, determining N first action characteristic values of which the trigger frequency in the adjustment area meets a preset frequency threshold, generating a lifting instruction according to the N first action characteristic values, wherein N is a positive integer greater than or equal to 2, and the first action characteristic values are single-point actions of which the trigger time is less than the preset time; or in the first acquisition time period, determining M second action characteristic values with the triggering interval duration meeting a preset interval threshold in the adjustment area, wherein the M second action characteristic values at least comprise 1 continuous sliding signal in the adjustment area, and generating a lifting instruction according to the M second action characteristic values, wherein M is a positive integer greater than or equal to 2.
Specifically, the embodiment provides an implementation manner of responding to the lifting instruction, and after the action characteristic parameters are acquired in response to the trigger signal identifying the adjustment area on the display screen 40, the corresponding lifting instruction is further generated through judging the action characteristic parameters.
According to an embodiment of the present invention, the step of generating the adjustment strategy according to the target location parameter and the instant location parameter specifically includes: in the second acquisition time period, acquiring a third action characteristic value in the adjusting area, wherein the third action characteristic value is the coordinate of the target point identified on the adjusting area or the identified target point track and the moving track of the target point track; and generating target position parameters according to the coordinates or the moving track of the target point.
Specifically, the embodiment provides an implementation manner of generating an adjustment policy according to a target position parameter and an instant position parameter, generating the target position parameter based on a third action characteristic value acquired in a second acquisition time period, and generating a corresponding adjustment policy.
According to one embodiment of the present invention, the step of responding to the lifting instruction specifically includes: a voice signal responsive to the position adjustment of the identification base 10; and generating a lifting instruction according to the voice signal.
Specifically, the present embodiment provides an implementation in response to a raising and lowering command, which enables voice control of an automatically raising and lowering blackboard by generating a raising and lowering command in response to a voice signal indicating the adjustment position of the base 10.
According to an embodiment of the present invention, the step of generating the adjustment strategy according to the target location parameter and the instant location parameter specifically includes: acquiring a first voice feature and a second voice feature of the voice signal, wherein the first voice feature points to a starting feature of position adjustment of the base 10, and the second voice feature points to a target feature of a moving position of the base 10; and generating target position parameters according to the first voice characteristics and the second voice characteristics.
Specifically, the embodiment provides an implementation manner of generating an adjustment policy according to a target position parameter and an instant position parameter, and by acquiring a voice signal, a required target position parameter is generated according to a first voice feature and a second voice feature of the voice signal, so as to generate a corresponding adjustment policy.
In some specific embodiments of the present invention, the present invention provides a control device for automatically lifting and lowering a blackboard, including: a response acquisition module 60, a policy generation module 70, and a policy enforcement module 80; the response acquisition module 60 is configured to acquire a target position parameter and an instant position parameter of the base 10 in response to the lifting instruction; the policy generation module 70 is configured to generate an adjustment policy according to the target location parameter and the instant location parameter; the policy enforcement module 80 is configured to control the lifting mechanism 50 to adjust the position of the base 10 according to an adjustment policy.
Specifically, in the control device for automatically lifting the blackboard provided by the invention, the response obtaining module 60 responds to the lifting instruction, the target position parameter and the instant position parameter of the base 10 are obtained, the strategy generating module 70 generates the corresponding adjustment strategy based on the two parameters, and then the strategy executing module 80 adjusts the lifting mechanism 50 based on the generated adjustment strategy, so that the blackboard is moved in the first direction.
In the description of the present invention, reference to the terms "one embodiment," "some embodiments," "manner," "particular modes," or "some modes," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or mode is included in at least one embodiment or mode of the embodiments of the present invention. In the present description, the schematic representations of the above terms are not necessarily directed to the same embodiment or manner. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or ways. Furthermore, various embodiments or modes and features of various embodiments or modes described in this specification can be combined and combined by those skilled in the art without mutual conflict.
Finally, it should be noted that: the above embodiments are only for illustrating the present invention, and are not limiting of the present invention. While the invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and it is intended to be covered by the scope of the claims of the present invention.
Claims (10)
1. An automatic lifting blackboard, comprising: the device comprises a base (10), a first plate body (20), a second plate body (30), a display screen (40), a lifting mechanism (50) and an image acquisition part (12);
the lifting mechanism (50) is connected with the base (10) and can drive the base (10) to adjust the relative position along a first direction;
the first plate body (20) and the display screen (40) are arranged in the base (10);
the second plate body (30) is in sliding connection with the base (10), the second plate body (30) moves along a second direction so as to realize movement between the first plate body (20) and the display screen (40), and the first direction and the second direction are perpendicular to each other;
the image acquisition part (12) is connected with the base (10), is arranged at the top of the base (10) and is used for acquiring height characteristic parameters of a user;
wherein the first plate (20) and the second plate (30) form a writing area for blackboard writing;
the display screen (40) forms a display area for courseware.
2. The automatic lifting blackboard according to claim 1, characterized in that the lifting mechanism (50) includes: a frame body (52) and a lifting part (54);
the frame body (52) is connected with the base (10);
the lifting part (54) is arranged on the wall body, is connected with the frame body (52) and is used for driving the base (10) to adjust the relative position along the first direction.
3. The automatic lifting blackboard according to claim 2, characterized in that the lifting mechanism (50) further includes: and the reinforcing ribs (56) are arranged at intervals along the first direction and/or the second direction, and are connected with the frame body (52).
4. The automatic lifting blackboard according to claim 1, characterized in that the display screen (40) is a touch screen to realize a touch operation on the display area.
5. A control method based on the automatic lifting blackboard according to any one of the preceding claims 1 to 4, characterized by comprising:
acquiring a target position parameter and an instant position parameter of the base (10) in response to a lifting instruction;
generating an adjustment strategy according to the target position parameter and the instant position parameter;
controlling the lifting mechanism (50) to adjust the position of the base (10) according to the adjustment strategy.
6. The method for controlling an automatically lifting blackboard according to claim 5, characterized in that the step of obtaining the target position parameter and the instantaneous position parameter of the base (10) specifically includes:
acquiring height characteristic parameters of a user;
and generating target position parameters of the base (10) according to the height characteristic parameters.
7. The method of controlling an automatically raising and lowering blackboard according to claim 6, wherein said step of generating a target position parameter of said base (10) according to said height characteristic parameter further includes:
judging according to the height characteristic parameters;
if the height characteristic parameter is in a first preset interval, setting a target position parameter of the base (10) to be a first preset value;
if the height characteristic parameter is in a second preset interval, setting the target position parameter of the base (10) to be a second preset value;
and if the height characteristic parameter is in a third preset interval, setting the target position parameter of the base (10) to be a third preset value.
8. The method for controlling an automatically lifting blackboard according to claim 5, wherein the step of responding to the lifting command specifically includes:
responsive to a trigger signal identifying an adjustment area on the display screen (40);
acquiring action characteristic parameters in the adjusting area, and judging according to the action characteristic parameters;
in a first acquisition time period, determining N first action characteristic values of which the trigger frequency in the adjustment area meets a preset frequency threshold, generating the lifting instruction according to the N first action characteristic values, wherein N is a positive integer greater than or equal to 2, and the first action characteristic values are single-point actions of which the trigger time is less than a preset time;
or in the first acquisition time period, determining M second action characteristic values of which the triggering interval duration in the adjustment area meets a preset interval threshold, wherein the M second action characteristic values at least comprise 1 continuous sliding signal in the adjustment area, and generating the lifting instruction according to the M second action characteristic values, wherein M is a positive integer greater than or equal to 2.
9. The method for controlling an automatically lifting blackboard according to claim 8, wherein the step of generating the adjustment strategy according to the target position parameter and the instant position parameter specifically includes:
acquiring a third action characteristic value in the adjusting area in a second acquisition time period, wherein the third action characteristic value is the coordinate of the target point identified on the adjusting area or the identified target point track and the moving track of the target point track;
and generating the target position parameter according to the target point coordinates or the movement track.
10. A control device for automatically lifting a blackboard, comprising: a response acquisition module (60), a policy generation module (70) and a policy enforcement module (80);
the response acquisition module (60) is used for responding to the lifting instruction and acquiring the target position parameter and the instant position parameter of the base (10);
the strategy generation module (70) is used for generating an adjustment strategy according to the target position parameter and the instant position parameter;
the strategy execution module (80) is used for controlling the lifting mechanism (50) to adjust the position of the base (10) according to the adjustment strategy.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310035051.7A CN116215119A (en) | 2023-01-10 | 2023-01-10 | Automatic lifting blackboard, control method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310035051.7A CN116215119A (en) | 2023-01-10 | 2023-01-10 | Automatic lifting blackboard, control method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806800A (en) * | 2012-08-25 | 2012-12-05 | 黑龙江八一农垦大学 | Fully-automatic lifting control and drive mechanism for blackboard |
| CN111131701A (en) * | 2019-12-25 | 2020-05-08 | 航天信息股份有限公司 | Intelligent head portrait tracking system and method |
| CN213935215U (en) * | 2020-12-21 | 2021-08-10 | 深圳市盛永昌科技有限公司 | Multimedia teaching all-in-one machine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806800A (en) * | 2012-08-25 | 2012-12-05 | 黑龙江八一农垦大学 | Fully-automatic lifting control and drive mechanism for blackboard |
| CN111131701A (en) * | 2019-12-25 | 2020-05-08 | 航天信息股份有限公司 | Intelligent head portrait tracking system and method |
| CN213935215U (en) * | 2020-12-21 | 2021-08-10 | 深圳市盛永昌科技有限公司 | Multimedia teaching all-in-one machine |
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