CN113864601A - Teaching auxiliary equipment and control system thereof - Google Patents
Teaching auxiliary equipment and control system thereof Download PDFInfo
- Publication number
- CN113864601A CN113864601A CN202111164851.6A CN202111164851A CN113864601A CN 113864601 A CN113864601 A CN 113864601A CN 202111164851 A CN202111164851 A CN 202111164851A CN 113864601 A CN113864601 A CN 113864601A
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- intelligent controller
- servo motor
- rotation servo
- positive
- electric telescopic
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- 238000004891 communication Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010191 image analysis Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses teaching auxiliary equipment and a control system thereof, and relates to the technical field of teaching auxiliary equipment. The intelligent projector comprises a projector body, a camera, an intelligent controller, a hanging assembly, control equipment and a mobile control terminal; the control equipment comprises an electric telescopic rod and a positive and negative rotation servo motor; the intelligent controller is respectively and electrically connected with the camera, the electric telescopic rod and the positive and negative rotation servo motor; the intelligent controller is in wireless communication connection with the mobile control terminal. The invention shoots a projection image through a camera and transmits the projection image to an intelligent controller; the intelligent controller obtains a projection deviation value according to the projection image analysis and transmits the projection deviation value to the mobile control terminal; the mobile control terminal transmits a control instruction to the intelligent controller; the intelligent controller respectively controls the electric telescopic rod to stretch and the forward and reverse rotation servo motor to rotate forward and reverse according to the control instruction.
Description
Technical Field
The invention belongs to the technical field of teaching auxiliary equipment, and particularly relates to teaching auxiliary equipment and a control system thereof.
Background
Along with popularization and promotion of the internet of things technology and the artificial intelligence technology, efficiency is improved in more and more fields. The teaching field also utilizes internet of things technology and artificial and intelligent technology to improve the teaching effect, and multimedia equipment is adopted in indoor teaching.
Projectors are a common type of multimedia device; when the existing projector is used, the projection image can not be accurately projected on a projection curtain, and the horizontal angle and the vertical height of the projector are often required to be adjusted, so that the projection image can be properly projected on the curtain. In the prior art, manual adjustment is needed, and the horizontal angle and the vertical height of adjustment cannot be well determined, so that the adjustment frequency is frequent, and the operation is complex and inconvenient.
In order to solve the above problems, the present invention provides a teaching assistance apparatus and a control system thereof.
Disclosure of Invention
The invention aims to provide teaching auxiliary equipment and a control system thereof.A projection deviation value is obtained through analysis of an intelligent controller according to a projection image and is transmitted to a mobile control terminal, and the mobile control terminal transmits a control instruction to the intelligent controller; the problem of current projecting apparatus manual regulation operation inconvenient and loaded down with trivial details is solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention is a teaching auxiliary device and its control system, including: the intelligent projector comprises a projector body, a camera, an intelligent controller, a hanging assembly, control equipment and a mobile control terminal; the hanging assembly comprises a hanging rod and a sliding rod; the bottom end of the hanging rod is provided with a sliding chute; one end of the sliding rod is slidably arranged in the sliding groove; the bottom end of the sliding rod is provided with an installation groove;
the control equipment comprises an electric telescopic rod and a positive and negative rotation servo motor; the electric telescopic rod is arranged at the top in the sliding groove; the output end of the electric telescopic rod is connected with the sliding rod; the positive and negative rotation servo motor is arranged at the top in the mounting groove; the output end of the positive and negative rotation servo motor is connected with the projector body;
a camera and an intelligent controller are mounted on the upper surface of the projector body; the intelligent controller is respectively and electrically connected with the camera, the electric telescopic rod and the positive and negative rotation servo motor; the intelligent controller is in wireless communication connection with the mobile control terminal.
As a preferred technical scheme, the output end of the positive and negative rotation servo motor is connected with the input end of the speed reducing mechanism; the output end of the speed reducing mechanism is connected with the center of the upper surface of the projector body.
As a preferred technical solution, the speed reducing mechanism comprises an upper supporting cover, a lower rotating cover and a transmission mechanism; the transmission mechanism comprises a driving gear, a plurality of driven gears and an inner gear ring; the driving gear is rotatably arranged on the inner bottom surface of the upper supporting cover coaxially; the driven gears are annularly and rotatably arranged on the inner bottom surface of the upper supporting cover; the lower rotating cover is rotatably arranged on the inner side surface of the upper supporting cover; an inner gear ring is arranged on the inner side of the lower rotating cover; the driving gear is meshed with a plurality of driven gears; the driven gear is meshed with the inner gear ring; the gear shaft of the driving gear is connected with the output end of the positive and negative rotation servo motor; the lower rotating cover is arranged on the inner side of the mounting groove; the bottom end of the lower rotating cover is coaxially provided with a connecting column; the connecting column is connected with the center of the upper surface of the projector body.
As a preferred technical scheme, the bottom end of the upper supporting cover is coaxially provided with a limiting ring; the lower rotating cover is positioned above the limiting ring.
As a preferred technical scheme, limiting structures are symmetrically arranged on the outer side of the upper supporting cover; the limiting structure comprises a limiting rod and an arc-shaped plate; one end of the limiting rod is connected with the outer side face of the upper supporting cover, and the other end of the limiting rod is connected with the inner side face of the arc-shaped plate; two mutually symmetrical limiting grooves are formed on the peripheral side of the mounting groove; the limiting rod is arranged in the limiting groove in a matching manner; the arc-shaped plate is fixedly arranged on the outer side face of the bottom of the sliding rod through a screw.
A control system of teaching auxiliary equipment comprises a camera, an intelligent controller, control equipment and a mobile control terminal; the control equipment comprises an electric telescopic rod and a positive and negative rotation servo motor; the intelligent controller is respectively and electrically connected with the camera, the electric telescopic rod and the positive and negative rotation servo motor; the intelligent controller is in wireless communication connection with the mobile control terminal.
As a preferred technical solution, the camera shoots a projection image and transmits the projection image to the intelligent controller; the intelligent controller obtains a projection deviation value according to the projection image analysis and transmits the projection deviation value to the mobile control terminal; the mobile control terminal transmits a control instruction to the intelligent controller; and the intelligent controller respectively controls the electric telescopic rod to stretch and the forward and reverse rotation servo motor to rotate forward and reverse according to the control instruction.
The invention has the following beneficial effects:
1. the invention shoots a projection image through a camera and transmits the projection image to an intelligent controller; the intelligent controller obtains a projection deviation value according to the projection image analysis and transmits the projection deviation value to the mobile control terminal; the mobile control terminal transmits a control instruction to the intelligent controller; the intelligent controller respectively controls the electric telescopic rod to stretch and the forward and reverse rotation servo motor to rotate forward and reversely according to the control instruction, and is convenient and practical.
2. The invention reduces the rotating speed of the positive and negative rotation servo motor through the action of the transmission mechanism in the speed reducing mechanism, and is more convenient for accurately adjusting the adjustment of the horizontal angle of the projector body; meanwhile, the limiting ring can well support the lower rotating cover, and the stability of the speed reducing mechanism is guaranteed.
3. The arc-shaped plate is arranged in the limiting groove in a matching way through the limiting rod, and the arc-shaped plate is fixedly arranged on the outer side surface of the bottom of the sliding rod through a screw; realize that reduction gears stable installation is in mounting groove week side, convenient practicality.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a teaching aid according to the present invention;
fig. 2 is a front view of fig. 1.
Fig. 3 is a cross-sectional view a-a of fig. 2.
Fig. 4 is a schematic structural view of the speed reducing mechanism of the present invention.
Fig. 5 is a front view of fig. 4.
Fig. 6 is a sectional view of B-B in fig. 5.
Fig. 7 is a schematic structural diagram of a control system of a teaching assistance apparatus according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, the present invention is a teaching assistance device, including: the intelligent projector comprises a projector body 1, a camera 2, an intelligent controller 3, a hanging assembly, control equipment and a mobile control terminal; the hanging component comprises a hanging rod 41 and a sliding rod 42; the bottom end of the hanger rod 41 is provided with a chute 411; one end of the sliding rod 42 is slidably mounted in the sliding slot 411; the bottom end of the sliding rod 42 is provided with a mounting groove 421.
The control equipment comprises an electric telescopic rod 51 and a positive and negative rotation servo motor 52; the electric telescopic rod 51 is arranged at the top in the sliding groove 411; the output end of the electric telescopic rod 51 is connected with the slide bar 42; the positive and negative rotation servo motor 52 is arranged at the top in the mounting groove 421; the output end of the positive and negative rotation servo motor 52 is connected with the projector body 1; specifically, the output end of the positive and negative rotation servo motor 52 is connected with the input end of the speed reducing mechanism; the output end of the speed reducing mechanism is connected with the center of the upper surface of the projector body 1; when the projector is actually used, the electric telescopic rod 51 is extended or shortened to drive the sliding rod 42 and the projector body 1 to lift or lower, so that the height of the projector body 1 is adjusted; in addition, the left-right rotation of the projector body 1 is adjusted through the forward and reverse installation of the forward and reverse rotation servo motor 52, so that the adjustment of the horizontal angle of the projector body 1 is realized, and the projector is convenient and practical.
Referring to fig. 4 to 7, the speed reducing mechanism includes an upper supporting cover 61, a lower rotating cover 62 and a transmission mechanism; the transmission mechanism comprises a driving gear 631, a plurality of driven gears 632 and an inner gear ring 621; the driving gear 631 is coaxially and rotatably mounted on the inner bottom surface of the upper support cover 61; a plurality of driven gears 632 are annularly and rotatably arranged on the inner bottom surface of the upper supporting cover 61; the lower rotating cover 62 is rotatably mounted on the inner side surface of the upper support cover 61; an inner gear ring 621 is arranged on the inner side of the lower rotating cover 62; the driving gear 631 is meshed with a plurality of driven gears 632; the driven gear 632 is meshed with the inner gear ring 621; the gear shaft of the driving gear 631 is connected with the output end of the positive and negative rotation servo motor 52; the lower rotating cover 62 is installed inside the installation groove 421; the bottom end of the lower rotating cover 62 is coaxially provided with a connecting column 622; the connecting column 622 is connected with the center of the upper surface of the projector body 1; specifically, the bottom end of the upper supporting cover 61 is coaxially provided with a limiting ring 611; the lower rotating cover 62 is located above the retainer ring 611; the limiting ring 611 can play a good role in supporting the lower rotating cover 62, so that the stability of the speed reducing mechanism is ensured; in fact, the rotation speed of the forward and reverse rotation servo motor 52 is reduced by the action of the transmission mechanism in the speed reduction mechanism, which is more convenient for the adjustment of the horizontal angle of the projector body 1.
In addition, a limiting structure is symmetrically arranged on the outer side of the upper supporting cover 61; the limiting structure comprises a limiting rod 612 and an arc plate 613; one end of the limiting rod 612 is connected with the outer side surface of the upper support cover 61, and the other end is connected with the inner side surface of the arc plate 613; two mutually symmetrical limiting grooves are formed on the periphery of the mounting groove 421; the limiting rod 612 is arranged in the limiting groove in a matching manner; the arc plate 613 is fixedly arranged on the outer side face of the bottom of the sliding rod 42 through a screw; the arc-shaped plate 613 is fixedly arranged on the outer side surface of the bottom of the sliding rod 42 through a screw; realize that reduction gears stable installation is in the interior periphery side of mounting groove 421, convenient and practical.
The upper surface of the projector body 1 is provided with a camera 2 and an intelligent controller 3; the intelligent controller 3 is respectively and electrically connected with the camera 2, the electric telescopic rod 51 and the positive and negative rotation servo motor 52; the intelligent controller 3 is in wireless communication connection with the mobile control terminal; specifically, a control instruction can be transmitted to the intelligent controller 3 through the mobile control terminal; the intelligent controller 3 controls the electric telescopic rod 51 to stretch and retract according to the control instruction to adjust the height of the projector body 1, and controls the forward and reverse rotation servo motor 52 to rotate forward and backward to adjust the horizontal angle of the projector body 1.
Example two:
referring to fig. 7, a control system of a teaching assistance device includes a camera 2, an intelligent controller 3, a control device, and a mobile control terminal; the control equipment comprises an electric telescopic rod 51 and a positive and negative rotation servo motor 52; the intelligent controller 3 is respectively and electrically connected with the camera 2, the electric telescopic rod 51 and the positive and negative rotation servo motor 52; the intelligent controller 3 is in wireless communication connection with the mobile control terminal; specifically, the camera 2 shoots a projection image and transmits the projection image to the intelligent controller 3; the intelligent controller 3 analyzes and obtains a projection deviation value according to the projection image and transmits the projection deviation value to the mobile control terminal; the mobile control terminal transmits a control instruction to the intelligent controller 3; the intelligent controller 3 respectively controls the electric telescopic rod 51 to stretch and retract and the forward and reverse rotation servo motor 52 to rotate forward and reverse according to the control instruction.
When the intelligent controller is in actual use, the camera 2 shoots a projection image and transmits the projection image to the intelligent controller 3; the intelligent controller 3 analyzes and obtains a projection deviation value according to the projection image and transmits the projection deviation value to the mobile control terminal; the mobile control terminal transmits a control instruction to the intelligent controller 3; the intelligent controller 3 respectively controls the electric telescopic rod 51 to stretch and retract and the forward and reverse rotation servo motor 52 to rotate forward and reversely according to the control instruction, and is convenient and practical.
It should be noted that, in the above system embodiment, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it is understood by those skilled in the art that all or part of the steps in the method for implementing the embodiments described above may be implemented by a program instructing associated hardware, and the corresponding program may be stored in a computer-readable storage medium.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A teaching assistance apparatus comprising: the intelligent projector comprises a projector body (1), a camera (2), an intelligent controller (3), a hanging assembly, control equipment and a mobile control terminal;
the hanging component comprises a hanging rod (41) and a sliding rod (42); the bottom end of the hanger rod (41) is provided with a sliding chute (411); one end of the sliding rod (42) is slidably arranged in the sliding groove (411); the bottom end of the sliding rod (42) is provided with an installation groove (421);
the control equipment comprises an electric telescopic rod (51) and a positive and negative rotation servo motor (52); the electric telescopic rod (51) is arranged at the top in the sliding groove (411); the output end of the electric telescopic rod (51) is connected with the sliding rod (42); the positive and negative rotation servo motor (52) is arranged at the top in the mounting groove (421); the output end of the positive and negative rotation servo motor (52) is connected with the projector body (1);
a camera (2) and an intelligent controller (3) are mounted on the upper surface of the projector body (1); the intelligent controller (3) is respectively and electrically connected with the camera (2), the electric telescopic rod (51) and the positive and negative rotation servo motor (52); the intelligent controller (3) is in wireless communication connection with the mobile control terminal.
2. A teaching aid as claimed in claim 1, wherein the output of the positive and negative rotation servo motor (52) is connected to the input of the reduction gear; the output end of the speed reducing mechanism is connected with the center of the upper surface of the projector body (1).
3. A teaching aid as claimed in claim 2, wherein the reduction mechanism comprises an upper support cover (61), a lower turning cover (62) and a transmission mechanism; the transmission mechanism comprises a driving gear (631), a plurality of driven gears (632) and an inner gear ring (621);
the driving gear (631) is coaxially and rotatably arranged on the inner bottom surface of the upper supporting cover (61); a plurality of driven gears (632) are annularly and rotatably arranged on the inner bottom surface of the upper support cover (61); the lower rotating cover (62) is rotatably arranged on the inner side surface of the upper supporting cover (61); an inner gear ring (621) is arranged on the inner side of the lower rotating cover (62); the driving gear (631) is meshed with a plurality of driven gears (632); the driven gear (632) is meshed with the inner gear ring (621);
the gear shaft of the driving gear (631) is connected with the output end of the positive and negative rotation servo motor (52); the lower rotating cover (62) is arranged on the inner side of the mounting groove (421); the bottom end of the lower rotating cover (62) is coaxially provided with a connecting column (622); the connecting column (622) is connected with the center of the upper surface of the projector body (1).
4. A teaching aid as claimed in claim 3, wherein the lower end of the upper support cover (61) is coaxially fitted with a stop collar (611); the lower rotating cover (62) is positioned above the limiting ring (611).
5. A teaching aid as claimed in claim 4, wherein the upper support cover (61) is externally symmetrically provided with a limiting structure; the limiting structure comprises a limiting rod (612) and an arc-shaped plate (613); one end of the limiting rod (612) is connected with the outer side face of the upper supporting cover (61), and the other end of the limiting rod is connected with the inner side face of the arc-shaped plate (613); two mutually symmetrical limiting grooves are formed on the peripheral side of the mounting groove (421); the limiting rod (612) is arranged in the limiting groove in a matching manner; the arc-shaped plate (613) is fixedly arranged on the outer side surface of the bottom of the sliding rod (42) through a screw.
6. A control system of teaching assistance device according to any one of claims 1 to 5, comprising a camera (2), an intelligent controller (3), a control device and a mobile control terminal; the control equipment comprises an electric telescopic rod (51) and a positive and negative rotation servo motor (52); the intelligent controller (3) is respectively and electrically connected with the camera (2), the electric telescopic rod (51) and the positive and negative rotation servo motor (52); the intelligent controller (3) is in wireless communication connection with the mobile control terminal.
7. A control system of teaching assistance device according to claim 6, wherein said camera (2) takes projection images and transmits them to the intelligent controller (3); the intelligent controller (3) analyzes and obtains a projection deviation value according to the projection image and transmits the projection deviation value to the mobile control terminal; the mobile control terminal transmits a control instruction to the intelligent controller (3); the intelligent controller (3) respectively controls the electric telescopic rod (51) to stretch and retract and the forward and reverse rotation servo motor (52) to rotate forward and reversely according to the control instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111164851.6A CN113864601A (en) | 2021-09-30 | 2021-09-30 | Teaching auxiliary equipment and control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111164851.6A CN113864601A (en) | 2021-09-30 | 2021-09-30 | Teaching auxiliary equipment and control system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113864601A true CN113864601A (en) | 2021-12-31 |
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ID=79001531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111164851.6A Pending CN113864601A (en) | 2021-09-30 | 2021-09-30 | Teaching auxiliary equipment and control system thereof |
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| CN (1) | CN113864601A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2938665A1 (en) * | 2008-11-18 | 2010-05-21 | Optinnova | Interactive display device i.e. interactive whiteboard, for use in enterprise, has tracking unit allowing video detection system to project video image so as to permit operator to interact with projected image |
| JP2019062568A (en) * | 2018-12-18 | 2019-04-18 | みこらった株式会社 | Mobile projection system and mobile projector device |
| CN209132984U (en) * | 2018-10-18 | 2019-07-19 | 肖雯雯 | A kind of English teaching multimedia projector |
| CN110645451A (en) * | 2019-10-17 | 2020-01-03 | 鞍山师范学院 | Hanging bracket for visual teaching projector and control method of hanging bracket |
| CN112492285A (en) * | 2020-12-01 | 2021-03-12 | 安徽文香信息技术有限公司 | Automatic projector calibration system and method based on image recognition for intelligent classroom |
| CN213513095U (en) * | 2020-10-24 | 2021-06-22 | 新哲教育发展(深圳)有限公司 | Classroom management system based on Internet of things |
| CN213840158U (en) * | 2020-11-17 | 2021-07-30 | 谭琦 | Conveniently adjust projecting direction's hoist and mount formula projecting apparatus for teaching |
-
2021
- 2021-09-30 CN CN202111164851.6A patent/CN113864601A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2938665A1 (en) * | 2008-11-18 | 2010-05-21 | Optinnova | Interactive display device i.e. interactive whiteboard, for use in enterprise, has tracking unit allowing video detection system to project video image so as to permit operator to interact with projected image |
| CN209132984U (en) * | 2018-10-18 | 2019-07-19 | 肖雯雯 | A kind of English teaching multimedia projector |
| JP2019062568A (en) * | 2018-12-18 | 2019-04-18 | みこらった株式会社 | Mobile projection system and mobile projector device |
| CN110645451A (en) * | 2019-10-17 | 2020-01-03 | 鞍山师范学院 | Hanging bracket for visual teaching projector and control method of hanging bracket |
| CN213513095U (en) * | 2020-10-24 | 2021-06-22 | 新哲教育发展(深圳)有限公司 | Classroom management system based on Internet of things |
| CN213840158U (en) * | 2020-11-17 | 2021-07-30 | 谭琦 | Conveniently adjust projecting direction's hoist and mount formula projecting apparatus for teaching |
| CN112492285A (en) * | 2020-12-01 | 2021-03-12 | 安徽文香信息技术有限公司 | Automatic projector calibration system and method based on image recognition for intelligent classroom |
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Application publication date: 20211231 |
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| RJ01 | Rejection of invention patent application after publication |