CN111907243A - Intelligent dust-free camera shooting blackboard system - Google Patents
Intelligent dust-free camera shooting blackboard system Download PDFInfo
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- CN111907243A CN111907243A CN202010743224.7A CN202010743224A CN111907243A CN 111907243 A CN111907243 A CN 111907243A CN 202010743224 A CN202010743224 A CN 202010743224A CN 111907243 A CN111907243 A CN 111907243A
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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
- B43L21/00—Blackboard or slate cleaning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
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- G06F16/53—Querying
- G06F16/538—Presentation of query results
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- G06F16/90—Details of database functions independent of the retrieved data types
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- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
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Abstract
The invention relates to an intelligent dust-free shooting blackboard system, and relates to the field of intelligent dust removal of blackboards. The system comprises a frame which is vertical in frame shape, wherein the frame is rotatably connected with a driven rotating shaft near the top end, and a driven gear is fixed on the driven rotating shaft; the rack is rotatably connected with a driving rotating shaft close to the bottom end, the driving rotating shaft is parallel to a driven rotating shaft, a driving gear is fixed on the driving rotating shaft, a first motor used for driving the driven gear to rotate is arranged on the driving rotating shaft, an output shaft of the first motor is fixed on the driving rotating shaft, and a transmission chain used for driving the driven gear to rotate is arranged between the driving gear and the driven gear; a blackboard face with an end parallel to the driven rotating shaft is fixed between the driven rotating shaft and the driving rotating shaft, an installation block is fixed on the transmission chain, a blackboard brush strip parallel to the driving rotating shaft is installed on the installation block, and one side, close to the blackboard face, of the blackboard brush strip is in contact with the blackboard face. The scheme can automatically erase the blackboard to replace manual blackboard erasing work, and is suitable for schools.
Description
Technical Field
The invention relates to the field of intelligent dust removal of blackboards, in particular to an intelligent dust-free shooting blackboard system.
Background
The existing teaching usually adopts multimedia teaching, but depends on multimedia courseware too much, so that the interactivity among teachers and students is lost, and the leading function of the teachers in class and the main functions of the students are difficult to be played. The difficulty that the teacher grasped the teaching process increases multimedia teaching information volume greatly, and the rhythm is fast, and difficult key is not outstanding, and too much of information time still can make the student can't follow the progress of lecturing, can only accept the content of giving lessons passively, lacks the process of thinking. And too many animation or video files are inserted into the multimedia courseware, which is easy to distract students. At present, whether the teaching content is suitable or not or multimedia courseware is necessary to be used for teaching, some multimedia courseware are used from beginning to end in a classroom, and teachers are only broadcasters and commentators, so that the control status corresponding to teaching is lost. Therefore, multimedia can be properly used to blossom the charm of teaching, and teachers need to make blackboard-writing actually when key points and questions are answered, which is the reason why the traditional blackboard teaching mode is still irreplaceable.
However, the blackboard is necessary to be cleaned by using the blackboard, in the prior art, the blackboard is cleaned by adopting a manual blackboard cleaning mode, time and labor are wasted, a large amount of dust is generated in the cleaning process, and the flying dust harms the health of teachers and students.
In addition, in the course of teaching in the traditional blackboard writing mode, students cannot systematically review classroom contents after class review, review efficiency is not high, and thought ideas and puzzles of students' knowledge points can be missed when the students learn the classroom. However, review after class and solving the confusion existing in classroom teaching are very important links, and the traditional teaching lacks a platform closely interacting with the teaching contents, so that the student is confused after class but cannot pertinently solve the problem of the teaching contents to the teacher, and meanwhile, the teacher cannot accurately and timely know the teaching contents of the student.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the automatic blackboard erasing replaces the manual blackboard erasing.
The technical scheme for solving the technical problems is as follows: the intelligent dust-free shooting blackboard system comprises a frame which is vertical, wherein the frame is rotatably connected with a driven rotating shaft close to the top end, and a driven gear is fixed on the driven rotating shaft; the rack is rotatably connected with a driving rotating shaft close to the bottom end, the driving rotating shaft is parallel to a driven rotating shaft, a driving gear is fixed on the driving rotating shaft, a first motor used for driving the driven gear to rotate is arranged on the driving rotating shaft, an output shaft of the first motor is fixed on the driving rotating shaft, and a transmission chain used for driving the driven gear to rotate is arranged between the driving gear and the driven gear;
a blackboard face with an end parallel to the driven rotating shaft is fixed between the driven rotating shaft and the driving rotating shaft, an installation block is fixed on the transmission chain, a blackboard brush strip parallel to the driving rotating shaft is installed on the installation block, and one side, close to the blackboard face, of the blackboard brush strip is in contact with the blackboard face.
The invention has the beneficial effects that: need only control the positive and negative rotation of first motor in this scheme alright in order to realize the up-and-down motion of blackboard brush strip, convenient to use, required with low costs, wipe the blackboard face with the manual work among the prior art and compare, wipe many times and probably feel the arm ache when the blackboard face is wiped to the manual work, and the number of times that the blackboard face was wiped has been few just probably the blackboard appears not wiping clean problem appearance, and can control first motor action in this scheme and realize reciprocal blackboard work, labour saving and time saving.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, a second motor is fixed on the top surface of the frame, a winding shaft is fixed on an output shaft of the second motor, and a winding film for covering the blackboard surface and the blackboard brush strip is wound on the winding shaft.
The beneficial effect of adopting the further scheme is that: in the scheme, before the blackboard is cleaned by the action of the blackboard eraser strip, the action of the second motor can be controlled, the second motor acts to enable the winding film to cover the blackboard surface and the blackboard brush strip and then control the first motor to work (the action of the blackboard brush strip), so that dust for erasing the blackboard is covered by the winding film, and the dust is prevented from flying out and being adsorbed by people around the blackboard when the blackboard is erased.
Further, a chalk storing frame for storing chalk dust is arranged at the bottom end of the frame.
The beneficial effect of adopting the further scheme is that: dust in the winding film falls into the powder storage frame, so that dust generated on the surface of the blackboard is prevented from falling on the ground; meanwhile, the powder storage frame can also be used for receiving dust generated during writing on the blackboard surface.
Further, a filter screen is arranged on the powder storage frame.
The beneficial effect of adopting the further scheme is that: the setting of filter screen makes free dust can enter into in storing up the powder frame.
Further, a filter screen is arranged on the powder storage frame.
The beneficial effect of adopting the further scheme is that: the setting of filter screen makes free dust can enter into in storing up the powder frame.
Further, the powder storage frame is in an inverted trapezoid shape.
The beneficial effect of adopting the further scheme is that: the powder storage frame in the inverted trapezoid shape enables the opening of the powder storage frame to be large, and dust can enter the powder storage frame conveniently.
Further, the bottom of frame is provided with and is used for rolling up the first travel switch that the film downwardly movement was touched, and blackboard face left surface top is fixed with the second travel switch, and blackboard face left surface bottom is fixed with the third travel switch, is connected with the controller on the first travel switch, and second travel switch, third travel switch, first motor and second motor all are connected with the controller.
The beneficial effect of adopting the further scheme is that: when the controller controls the second motor to rotate forwards, the winding film extends downwards and covers the blackboard surface and the blackboard brush strip, when the winding film extends to match with the first travel switch at the bottom end of the rack, the first travel switch is touched, the controller controls the first motor to rotate forwards, the driving gear and the driven gear rotate, the transmission chain moves, the mounting block and the blackboard brush strip move upwards to clean the blackboard surface for the first time, when the blackboard brush strip moves to the top end of the blackboard surface, the second travel switch is touched, the controller controls the first motor to rotate backwards, the blackboard brush strip starts to move downwards, when the blackboard brush strip moves to the bottom end of the blackboard surface, the third travel switch is touched, the controller controls the motor to rotate forwards and the blackboard brush strip to move upwards, and when the blackboard brush strip reciprocates up and down for multiple times (the specific reciprocating times can be set manually), the controller controls the first motor to stop working, the second motor starts to rotate reversely, the winding film is completely wound on the winding shaft, the blackboard brush strip stops at the upper end of the blackboard, and the automatic cleaning work of the whole blackboard surface is completed; and the blackboard brush strip stops at the upper end of the blackboard to avoid the blackboard brush strip blocking a teacher from writing.
The system further comprises an information recording subsystem, wherein the information recording subsystem is used for storing image data of teaching contents recorded on the blackboard, downloading the image data of student users and teacher users and communicating problems of the student users and the teacher users.
The beneficial effect of adopting the further scheme is that: the establishment of information recording subsystem in this scheme is convenient for student and mr to impart knowledge to students and communicate, and the mr of being convenient for masters the student knowledge and masters the condition, and simultaneously, the student of being convenient for looks over the relevant image data of the teaching content who records on the download blackboard to the student carries out knowledge consolidation.
Drawings
Fig. 1 is a side view of a first embodiment of the intelligent dust-free camera blackboard system of the present invention.
Detailed Description
Reference numerals in the drawings of the specification include: the blackboard eraser comprises a rack 1, a driven gear 2, a transmission chain 3, a driving rotating shaft 4, a blackboard surface 5, a mounting block 6, a blackboard brush strip 7, a second travel switch 8, a winding film 9, a winding shaft 10, a first travel switch 11, a third travel switch 12, a driving gear 13 and a powder storage frame 14.
Example one
An embodiment is substantially as shown in figure 1, an intelligent dust-free camera blackboard system, comprising: the device comprises a frame-shaped frame 1, wherein a driven rotating shaft is rotatably connected to the top end of the frame 1, and a driven gear 2 is fixedly welded on the driven rotating shaft; frame 1 leans on the bottom to rotate and is connected with initiative axis of rotation 4, and initiative axis of rotation 4 is parallel with driven axis of rotation, and welded fastening has driving gear 13 in the initiative axis of rotation 4, and is provided with on the initiative axis of rotation 4 and is used for driving driven gear 2 pivoted first motor, the output shaft and the welding of initiative axis of rotation 4 of first motor, and be provided with between driving gear 13 and the driven gear 2 and be used for driving driven gear 2 pivoted drive chain 3. A blackboard face 5 with the end parallel to the driven rotating shaft is fixed between the driven rotating shaft and the driving rotating shaft 4 through a bolt, an installation block 6 is fixed on the transmission chain 3, a blackboard brush strip 7 parallel to the driving rotating shaft 4 is installed on the installation block 6, and one side, close to the blackboard face 5, of the blackboard brush strip 7 is in contact with the blackboard face 5.
A second motor is fixed on the top surface of the frame 1 through bolts, a winding shaft 10 is welded on an output shaft of the second motor, and a winding film 9 for covering the blackboard surface 5 and the blackboard brush strip 7 is wound on the winding shaft 10; a rectangular filter screen (the filter screen is not drawn in fig. 1) is flatly laid at the bottom end of the rack 1, a powder storage frame 14 for storing chalk dust is arranged below the filter screen, the powder storage frame 14 is in an inverted trapezoidal shape, and the dusty chalk can be directly placed on the rack 1 or can be fixed on the rack 1 in a detachable mode such as a bolt; and the bottom of the frame 1 is provided with a first travel switch 11 which is used for moving downwards and touching the winding film 9, the top end of the left side surface of the blackboard surface 5 is fixed with a second travel switch 8, the bottom end of the left side surface of the blackboard surface 5 is fixed with a third travel switch 12, and a control panel which is used for controlling the actions of the first motor and the second motor is arranged beside the frame 1.
Be provided with the controller on the control panel, the controller can select for use FX series PLC or ohm dragon CP1H series PLC, and the input port of controller is connected with starting switch, and first travel switch 11, second travel switch 8 and third travel switch 12 all are connected with the input port of controller, and first motor and second motor all are connected with the output port of controller.
In specific implementation, the starting switch is pressed, the controller controls the second motor to rotate forwards, the winding film 9 extends downwards and covers the blackboard face 5 and the blackboard brush strip 7, when the winding film 9 extends to match with the position of the first travel switch 11 at the bottom end of the rack 1, the first travel switch 11 is triggered, the controller controls the first motor to rotate forwards, the driving gear 13 and the driven gear 2 rotate, the transmission chain 3 moves, the mounting block 6 and the blackboard brush strip 7 move upwards to clean the blackboard face 5 for the first time, when the blackboard brush strip 7 moves to the top end of the blackboard face 5, the second travel switch 8 is touched, the controller controls the first motor to rotate backwards, the blackboard brush strip 7 starts to move downwards, when the blackboard brush strip 7 moves to the bottom end of the blackboard face 5, the third travel switch 12 is triggered, the controller controls the motor to rotate forwards and the blackboard brush strip 7 moves upwards, and when the blackboard brush strip 7 reciprocates upwards and downwards, the reciprocating times of the blackboard brush strip can be set according to actual needs, only need with the blackboard brush strip stop on the blackboard can, avoid the blackboard brush strip to influence the teacher and write), the first motor stop work of controller control, the second motor begins the reversal, on rolling up the reel 10 around the whole rolling up of rolling up film 9, accomplish whole blackboard face 5 self-cleaning work.
Example two
The difference between the second embodiment and the first embodiment is that the intelligent dust-free camera shooting blackboard system in the second embodiment further comprises an information recording subsystem, and the information recording subsystem comprises a collecting end, a student end, a teacher end and a server. The acquisition end, the student end and the teacher end are connected with the server through wireless communication module signals, and the wireless communication module can select the existing WIFI module for use. The student end and the teacher end in the scheme can select computers.
The acquisition end is responsible for image data acquisition of learning contents on the blackboard and compression and encoding of the image data in the teaching process, establishes a transmission channel with the server and sends data. The server side is responsible for monitoring the connection request in real time, receiving the picture data sent by the acquisition side, decoding and presenting the picture data to a webpage. The student side is used for checking and downloading picture data under corresponding dates after student users register and log in the information recording subsystem through the webpage, so that the students can review learning contents on corresponding dates conveniently; meanwhile, the student end is also used for the students to carry out question inquiry, so that the teachers can check related questions and answer from the teacher end. The teacher end is also used for managing student account numbers after teacher users register and log in the information recording subsystem through the webpage, and the teacher can delete the student account numbers registered by the student end through the teacher end.
The collection end includes: camera module and information processing module. When the system is implemented, the acquisition end comprises a computer and a camera.
The camera module comprises a camera which is installed right opposite to the blackboard, the camera is used for shooting image data corresponding to teaching contents written on the blackboard, then the shot image data are sent to the information processing module, the information processing module is used for compressing and encoding the image data sent by the camera module, and then the compressed and encoded image data are sent to the server.
The server includes a database. The database is used for storing all data in the server. Wherein, the data stored in the database comprises: the image data sent by the acquisition end, the information asked by the student end by the student user, the answer information asked by the teacher end for the student, and the like.
The student end includes: the system comprises a registration login module, a question asking module and a picture data downloading module.
The registration login module is used for registering and logging in an account number of a student user.
The questioning module is used for filling in questions to be consulted with a teacher by student users, then sending the questions to the server, sending answer information to the server after the teacher user answers the questions correspondingly from the teacher end, and sending the answer information to the questioning module and displaying the answer information for the students to check.
The image data downloading module is used for the student user to select the course and the class hour, and then checking and downloading the image data of the corresponding date corresponding to the course and the class hour.
The teacher end includes: the system comprises a registration login module, an answer module, a picture data downloading module and a management module.
And the register and login module of the teacher end is used for registering and logging in an account number by a teacher user.
The answer module is used for the teacher to answer the questions that the student users put forward through the student end.
And the picture data downloading module is used for the teacher user to check the picture data of the corresponding date.
The management module is used for adding or deleting accounts of the student users by the teacher user, such as deleting account of graduation students.
The specific implementation process is as follows:
(1) a raspberry single board computer is selected, and Windows remote software xrdp is configured on the raspberry single board computer, so that the raspberry single board computer is more convenient to connect. Remote desktop remote raspberry pies can be realized through windows.
(2) Opencv is configured on the raspberry pi, and a raspberry pi camera is connected to enable the raspberry pi camera to have a photographing function.
(3) And directly calling an opencv function by using a c + + interface of the opencv to realize photographing and storage. C + + socket is written on the raspberry thread in preparation for sending pictures to the server.
(4) Renting a server, buying a domain name, binding the domain name, configuring the server to install a lamp frame, and establishing a web server which can be accessed by an external network.
(5) And designing a website interface on the linux server by using the html + css language.
(6) The Php language realizes the user login function. And embedding required functions in html by using the characteristics of the PHP scripting language. Web development is not limited to static pages. But rather a platform that enables communication with servers, databases, etc. And the Mysql database is connected, so that the administrator can conveniently add, delete, change and search the user.
(7) And connecting the MySQL management user.
(8) And mounting a socket server written in c + + on the server, and receiving the pictures transmitted by the raspberry group.
It should be noted that the above embodiments are product embodiments corresponding to the above method embodiments, and for the description of each structural device and the optional implementation in this embodiment, reference may be made to the corresponding description in the above method embodiments, and details are not repeated herein.
The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. Dustless blackboard system of making a video recording of intelligence, its characterized in that: the device comprises a frame which is vertical, wherein a driven rotating shaft is rotatably connected to the top end of the frame, and a driven gear is fixed on the driven rotating shaft; the rack is rotatably connected with a driving rotating shaft close to the bottom end, the driving rotating shaft is parallel to a driven rotating shaft, a driving gear is fixed on the driving rotating shaft, a first motor used for driving the driven gear to rotate is arranged on the driving rotating shaft, an output shaft of the first motor is fixed on the driving rotating shaft, and a transmission chain used for driving the driven gear to rotate is arranged between the driving gear and the driven gear;
a blackboard face with an end parallel to the driven rotating shaft is fixed between the driven rotating shaft and the driving rotating shaft, an installation block is fixed on the transmission chain, a blackboard brush strip parallel to the driving rotating shaft is installed on the installation block, and one side, close to the blackboard face, of the blackboard brush strip is in contact with the blackboard face.
2. The intelligent dust-free camera blackboard system of claim 1, wherein: the top surface of the frame is fixed with a second motor, an output shaft of the second motor is fixed with a winding shaft, and a winding film for covering the blackboard surface and the blackboard brush strip is wound on the winding shaft.
3. The intelligent dust-free camera blackboard system of claim 2, wherein: the bottom of the frame is provided with a chalk storage frame for storing chalk dust.
4. The intelligent dust-free camera blackboard system of claim 3, wherein: the powder storage frame is provided with a filter screen.
5. The intelligent dust-free camera blackboard system of claim 4, wherein: the powder storage frame is in an inverted trapezoidal shape.
6. The intelligent dust-free camera blackboard system of claim 5, wherein: the bottom of frame is provided with and is used for rolling up the first travel switch that the film downwardly movement was touched, and blackboard face left surface top is fixed with the second travel switch, and blackboard face left surface bottom is fixed with the third travel switch, is connected with the controller on the first travel switch, and second travel switch, third travel switch, first motor and second motor all are connected with the controller.
7. The intelligent dust-free camera blackboard system according to any one of claims 1 to 6, wherein: the system also comprises an information recording subsystem, wherein the information recording subsystem is used for storing image data of teaching contents recorded on the blackboard, downloading the image data of student users and teacher users and communicating problems of the student users and the teacher users.
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| CN202010743224.7A CN111907243A (en) | 2020-07-29 | 2020-07-29 | Intelligent dust-free camera shooting blackboard system |
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| CN105059018A (en) * | 2015-08-10 | 2015-11-18 | 黄媛珍 | Electric self-cleaning teaching blackboard |
| CN107415529A (en) * | 2017-04-14 | 2017-12-01 | 黄庆 | A kind of environmentally friendly blackboard for education |
| CN108492651A (en) * | 2018-02-12 | 2018-09-04 | 顾月明 | One kind being based on CSCW mobile learnings method and partner systems |
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Application publication date: 20201110 |