CN109345882B

CN109345882B - Multimedia system for economic teaching

Info

Publication number: CN109345882B
Application number: CN201811231106.7A
Authority: CN
Inventors: 何俊; 张玉林; 江丽丽; 盘钦卿; 何畏
Original assignee: Chongqing Vocational Institute of Engineering
Current assignee: Chongqing Vocational Institute of Engineering
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2020-11-06
Anticipated expiration: 2038-10-22
Also published as: CN109345882A

Abstract

The invention relates to the field of information technology teaching, in particular to a multimedia system for economic teaching, which comprises a control module, a storage module, a display module, a writing module, a supervision module, a drawing module and an acquisition module, wherein the supervision module, the drawing module and the acquisition module are used for teaching service supervisors to know teaching progress, the supervision module is in wireless communication connection with the control module, the drawing module is used for assisting drawing of graphs in economic teaching contents on the writing module, the acquisition module is used for acquiring the drawn graph information, the drawing module sends a completion signal to the acquisition module after the graph drawing is completed, the acquisition module sends the drawn graph information to the control module according to the completion signal, and the control module sends the graph information to the supervision module. The invention assists drawing in the economic teaching process, improves drawing speed, reduces delay of teaching process, and sends graphic information to a teaching supervisor after drawing is finished, so that the teaching supervisor supervises teaching progress in time.

Description

Multimedia system for economic teaching

Technical Field

The invention relates to the field of information technology teaching, in particular to a multimedia system for economic teaching.

Background

Economics is a rule for studying human economic activities, and is also a basic course in each high school, the economics teaching relates to theoretical teaching of various economic activities and corresponding relations among parameters in the economic activities, and the corresponding relations among the parameters are generally represented by graphs, such as bar graphs and curve graphs.

In the economics teaching process, a teacher can show the relation among all parameters by drawing various graphs, although the graphs can be shown by demonstrating a slide at present, the teacher can directly draw the graphs or use a ruler as a drawing reference when drawing the graphs, or directly draw the graphs in one stroke, and explain knowledge to students through the process of drawing the graphs, particularly when the students do not understand the relation among the parameters, the teacher can repeatedly draw the graphs, so that the teaching time is delayed, and the teaching progress is delayed; after the teaching progress is delayed, the teaching supervisor still knows the teaching progress according to the teaching plan content of the teacher, so that the teaching supervisor cannot know the real teaching progress, and the teaching progress known by the teaching supervisor is delayed.

Disclosure of Invention

The invention aims to provide a multimedia system for economic teaching, which solves the problem of supervision delay caused by delay of teaching progress due to repeated drawing of a graph during economic teaching.

The multimedia system for the economic teaching comprises a control module, a storage module for storing the teaching content, a display module for displaying the teaching content, a writing module for writing the teaching content, a supervision module, a drawing module and an acquisition module, wherein the display module is fixedly arranged on a wall surface, the writing module is positioned above the display module and can be used for the display module to display the teaching content, the supervision module is used for a teacher to know the teaching progress, the supervision module is in wireless communication connection with the control module, the drawing module is used for assisting the drawing of the graph in the economic teaching content on the writing module, the acquisition module is used for acquiring the graph information after the drawing is finished, the drawing module sends a finishing signal to the acquisition module after the graph drawing is finished, and the acquisition module sends the drawn graph information to the control module according to the finishing signal, the control module sends the graphical information to a supervision module.

The beneficial effect of this scheme is:

1. in the teaching process, the teaching content that the display module demonstrates sees through writing the module show for the student, when needing to draw the figure, the teacher draws the figure through drawing module's supplementary on writing the module, the figure is shown on the module of writing of display module top, the process of drawing the figure demonstrates for the student one by one, let the student clearly understand the knowledge that the figure represents, need not the mr and take, place, the position of transform ruler carries out the figure and draws, and the figure drawing process of show need not the teacher and draws the figure repeatedly moreover, reduce and delay the time of getting into class because of drawing the figure.

2. The display module is arranged below the writing module, and can be directly carried out on the writing module above the display module when a graph is drawn, so that the writing area of the writing module can not be reduced, and the utilization rate of the writing module is improved.

3. After the drawing module finishes drawing the graph, the drawing module sends a completion signal to the acquisition module, the acquisition module sends the drawn graph to the control module, and the control module sends the graph to the supervision module, so that a teaching supervisor can know the teaching progress in time.

Further, the writing module is including setting firmly the clipboard on the wall, drawing module includes two horizontal slide rails and two longitudinal slide rails, horizontal slide rail sets firmly the top and the bottom department at the clipboard respectively, horizontal slide rail is parallel to each other, longitudinal slide rail sets firmly left end and right-hand member department at the clipboard respectively, longitudinal slide rail is parallel to each other, sliding fit has a plurality of vertical strips between horizontal slide rail, sliding fit has a plurality of horizontal strips between longitudinal slide rail.

The teacher only needs to move the longitudinal bars and the transverse bars, the longitudinal bars and the transverse bars form intersection angles, points are drawn at the intersection angles, the drawn points are connected into curves or broken lines, or the longitudinal bars and the transverse bars form the shape of a bar graph, the bar graph between the transverse bars and the longitudinal bars can be drawn to form a bar graph, the use is simple, and the drawing of different graphs can be adjusted correspondingly.

Furthermore, a plurality of first through holes distributed at equal intervals are formed in the transverse strip, a plurality of second through holes distributed at equal intervals are formed in the longitudinal strip, the diameters of the first through holes and the diameters of the second through holes are the same, and the interval between the first through holes is equal to the interval between the second through holes.

When the longitudinal bars and the transverse bars are moved to draw a curve graph, the transverse bars and the longitudinal bars are crossed, the first through holes and the second through holes are coaxially overlapped up and down and penetrate through the two through holes to draw points on the curve, and after the points of the curve are drawn, the points are connected into the curve, namely, the graph drawing of the curve is completed, so that the accuracy of the graph drawing of the curve is improved.

Further, drawing module is still including being located the sealed section of thick bamboo of horizontal slide rail right-hand member, it has the conducting coil to coil on the sealed section of thick bamboo lateral wall, the module is obtained in the conducting coil electricity connection, sliding fit has the permanent magnet in the sealed section of thick bamboo, indulge the strip and all set firmly along the gliding iron slippery fellow of horizontal slide rail on sealed section of thick bamboo one side.

When the vertical strip slides to draw a graph, the iron sliding head on the vertical strip can attract the permanent magnet in the sealing cylinder upwards, so that the conductive coil cuts the magnetic induction line of the permanent magnet, induced current is generated in the conductive coil to trigger the acquisition module, independent triggering is not needed, the use is more convenient, and the time of independent operation is saved.

Further, the acquisition module comprises a camera unit aligned with the writing board, the camera unit is electrically connected with the control module, the control module sends a picture shot by the camera unit to the display module for display, and the camera unit is installed beside the writing board through a support.

The acquisition module sends the graph drawn in the economic teaching process to the supervision module in a shooting mode, so that a teaching task supervisor can visually know the teaching progress, and the teaching task supervisor can conveniently monitor the teaching progress in time.

Further, the clipboard is equipped with live-rollers and sliding roller on wall one side, the live-rollers is located the wall department of indulging a initial position when initial, the sliding roller initial position is located the left wall department of display module, around having the colour and writing the gauze covering of content colour comparison in pairs on the live-rollers, the cloth head of gauze covering sets firmly on the sliding roller, the both ends of sliding roller respectively with indulge a both ends fixed connection, the sliding roller is slided by the left and right sides direction of indulging the strip drive at the clipboard.

The vertical bar that moves right during drawing drives the slide roller and also moves right, the slide roller pulls out the matte on the live-rollers, every drawing a part of figure just shelters from a part of clipboard by the matte, hide partial display module simultaneously, after the figure is drawn and is accomplished, the display module is sheltered from completely to the matte, make the student can clearly see the content of drawing and the process of drawing, display module does not occupy the writing area of clipboard simultaneously, let the student clearly know the meaning of figure in the economics, after the figure is drawn and is accomplished, the bottom surface that the clipboard was covered completely to the matte, the contrast that the matte can be complete draws the figure, the definition that the image was shot to the unit of making a video recording has been improved simultaneously.

Drawings

FIG. 1 is a schematic block diagram of a first embodiment of a multimedia system for economic teaching according to the present invention;

FIG. 2 is a schematic diagram of a writing board according to a first embodiment of the multimedia system for teaching economics of the present invention;

FIG. 3 is a front view of the tablet of FIG. 2;

FIG. 4 is a schematic structural diagram of a second multimedia system for economic teaching according to the present invention.

Detailed Description

The following is a more detailed description of the present invention by way of specific embodiments.

Reference numerals in the drawings of the specification include: the wall surface comprises a wall surface 1, a writing board 2, a transverse sliding rail 3, a longitudinal sliding rail 4, a longitudinal bar 5, a transverse bar 6, a rotating roller 7, a covering cloth 8, a rotating shaft 9, a sliding roller 10, a sliding rod 11, a sealing cylinder 12, a permanent magnet 13, a conductive coil 14, a display module 15 and a water spraying pipe 16.

Example one

An embodiment substantially as shown in figures 1 and 2 of the accompanying drawings: the teaching aid comprises a control module, a storage module for storing teaching contents, a display module 15 for displaying the teaching contents, a writing module for writing the teaching contents, a supervision module for teaching service supervisors to know teaching progress, a drawing module for assisting the drawing of the figures in the economic teaching contents on the writing module and an acquisition module for acquiring the drawn figure information.

The supervision module is in wireless communication connection with the control module, the supervision module can be a mobile phone terminal of a teacher supervisor, the control module can use an existing AT89S51 singlechip, the control module is electrically connected with a wireless communication module, the control module is in wireless connection with the supervision module through the wireless communication module, the wireless communication module can be a 3G communication module of the Huacheng company MU709S 709S-6 series, the drawing module sends a completion signal to the acquisition module after drawing the graph, the acquisition module sends the drawn graph information to the control module according to the completion signal, the acquisition module comprises a camera unit aligned with the writing board 2, the camera unit is electrically connected with the control module, the control module sends the picture shot by the camera unit to the display module 15 for display, the display module 15 can be realized by using an existing display screen, the display module 15 is embedded and installed on the wall surface 1 of a classroom, the camera unit is installed beside the writing board 2 through a support, the support nail connects on wall 1, and control module passes through wireless communication module and sends graphical information to the supervision module, lets the teaching affair supervisor in time know economic teaching's teaching progress.

As shown in fig. 2, the writing module includes a writing board 2 fixedly mounted on a wall surface 1 through a bolt column, the writing board 2 is located above a display module 15, the display module 15 can be located at a middle position of the writing board 2, the overlooking surface of the writing board 2 is rectangular, the writing board 2 can be made of an existing transparent glass plate, a black ink pen can be used for writing during writing, the length of the writing board 2 is 3.6m for example, the width of the writing board 2 is 1m for example, the drawing module includes two transverse slide rails 3 and two longitudinal slide rails 4, the transverse slide rails 3 and the longitudinal slide rails 4 are both provided with chutes, the transverse slide rails 3 are respectively nailed on the wall surface 1 at the top end and the bottom end of the writing board 2, the transverse slide rails 3 are parallel to the top edge and the bottom edge of the writing board 2, the transverse slide rails 3 are parallel to each other, the longitudinal slide rails 4 are respectively nailed on the wall surface 1, the longitudinal slide rail 4 is parallel to the left side edge and the right side edge of the writing board 2, the longitudinal slide rail 4 is parallel to each other, a plurality of longitudinal bars 5 are in sliding fit between the transverse slide rails 3, a plurality of second through holes distributed at equal intervals are formed in the longitudinal bars 5, a plurality of transverse bars 6 are in sliding fit between the longitudinal slide rails 4, sliding heads capable of sliding in sliding grooves are welded on the transverse bars 6 and the longitudinal bars 5, the transverse bars 6 are positioned above the longitudinal bars 5, scale marks are carved on the longitudinal bars 5 and the transverse bars 6, the longitudinal bars 5 and the transverse bars 6 are soft and have certain toughness, the longitudinal bars 5 and the transverse bars 6 are in contact with the surface of the writing board 2, a plurality of first through holes distributed at equal intervals are formed in the transverse bars 6, the first through holes are the same as the second through holes in diameter, the diameter is larger than the size of a pen point, for example, the diameters of the first through holes and the second through holes can be set to be 5mm, the interval between the first through holes is equal to the, in this embodiment, the distance between the centers of circles of the first through holes is equal to 1cm, the number of the first through holes is set according to the length of the writing board 2, the number of the first through holes in this embodiment may be 40, the number of the second through holes in this embodiment may be set according to the width of the writing pen, and the number of the second through holes in this embodiment may be 20.

As shown in fig. 3, the drawing module further includes a sealing barrel 12 located at the right end of the transverse sliding rail 3, the sealing barrel 12 is embedded into the wall surface 1, a conductive coil 14 is wound on the outer side wall of the sealing barrel 12, the conductive coil 14 is electrically connected with the acquisition module, a permanent magnet 13 is in sliding fit in the sealing barrel 12, the length of the permanent magnet 13 is smaller than the height of the sealing barrel 12, the permanent magnet 13 is located at the barrel bottom of the sealing barrel 12 in an initial state due to gravity, and an iron sliding head sliding along the transverse sliding rail 3 is welded on one side of the longitudinal bar 5 facing the sealing barrel 12.

A rotating roller 7 and a sliding roller 10 are arranged on one side of the writing board 2 facing the wall surface 1, rotating shafts 9 are rotatably connected on two ends of the rotating roller 7, the end part of each rotating shaft 9 is nailed on the wall surface 1, sliding rods 11 are welded on two ends of each sliding roller 10, the sliding rods 11 on two ends of each sliding roller 10 are respectively welded with two ends of any longitudinal bar 5, the rotating roller 7 is initially positioned at the wall surface 1 of the initial position of the longitudinal bar 5, the initial position of the sliding roller 10 is positioned at the wall surface 1 on the left side of the display module 15, the sliding roller 10 is positioned between the display module 15 and the writing board 2, the initial position of the longitudinal bar 5 is positioned at the left end of the writing board 2, a color comparison shade 8 with paired writing contents is wound, for example, the content written by the writing pen is black, the shielding cloth 8 is white, the difference of the contrast between the two is ensured to be larger, the cloth head of the shielding cloth 8 is adhered to the sliding roller 10, and the sliding roller 10 is driven by the longitudinal strip 5 to slide in the left and right directions of the writing board 2.

The specific implementation process is as follows: in the teaching process of economics, the contents of economics teaching are stored in the storage module, the control module obtains the teaching contents in the storage module and sends the teaching contents to the display module 15 for display, and students check the teaching contents in the display module 15; when a teacher needs to draw a graph related to economic teaching contents, aiming at a bar graph, adjusting the positions of a horizontal bar 6 and a vertical bar 5 according to the height and the width of the bar graph, checking a graduated scale to find out an accurate size, enabling the horizontal bar 6 and two vertical bars 5 to enclose the shape of the bar graph, drawing the graph along the inner side of the shape enclosed by the horizontal bar 6 and the vertical bars 5 by a writing pen, moving the vertical bars 5 to the right and enabling the horizontal bar 6 to move up and down to obtain another bar graph with a certain height, aiming at a graph, moving the positions of the horizontal bar 6 and the vertical bars 5 according to the graduated scale to enable the crossing angles of the horizontal bar 6 and the vertical bars 5 to form the coordinates of each point of the curve, or enabling a first through hole at the corresponding position on the horizontal bar 6 and a second through hole at the corresponding position on the vertical bars 5 to overlap to form the coordinates of each point of the curve, drawing each point of the curve through the writing pen at the crossing angles or the through holes, and, the teacher only needs to remove horizontal bar 6 and vertical bar 5 and just can accomplish the drawing of bar chart and curve chart, and horizontal bar 6 and vertical bar 5 accuracy inject the coordinate on the figure moreover, make the figure of drawing more accurate, and need not the position that the teacher took, placed, the transform ruler and carry out the figure and draw, and the figure drawing process of show need not the teacher and draws the figure repeatedly moreover, draws between different figures and need not to adjust alone, and the time is saved when drawing the figure, reduces delaying of course progress.

Meanwhile, in the teaching process, the display module 15 displays teaching contents for students to check, after the graphs are drawn, the longitudinal bar 5 can slide rightwards, the iron sliding head on the longitudinal bar 5 moves to the position above the sealing barrel 12, the iron sliding head upwards attracts the permanent magnet 13 in the sealing barrel 12, when the permanent magnet 13 moves, the conductive coil 14 cuts the magnetic induction line to generate induction current, the induction current in the conductive coil 14 is fed back to the acquisition module as a completion signal, the acquisition module sends the graph information shot by the camera shooting unit to the control module, the control module sends the graph information to the supervision module through the wireless communication module, and a teaching supervisor can timely know the teaching progress.

In the in-process of adjusting horizontal bar 6 and vertical bar 5 drawing figure, vertical bar 5 moves and drives slide roller 10 and moves right, slide roller 10 pulls out the matte 8 on the live-rollers 7, every partial figure of drawing just shelters from a part clipboard 2 by matte 8, while matte 8 shelters from display module 15, can not reduce the writing area of writing the module, writing the module's utilization ratio has been improved, still make the student can clearly see the content of drawing and the process of drawing, let the student clearly know the meaning of figure among the economics, after the figure is drawn, matte 8 covers the bottom surface of clipboard 2 completely, matte 8 can be complete contrast the figure of drawing, the definition that the image was shot to the unit that makes a video recording has been improved simultaneously.

Example two

The difference with the first embodiment lies in, as shown in fig. 4, a plurality of induction coils are evenly buried in the wall 1 corresponding to the writing board 2, the axes of the induction coils are perpendicular to the horizontal plane, each electromagnetic coil is connected in series with a current-limiting resistor through a wire to form a closed loop, each electromagnetic coil is electrically connected with a control module, the writing board 2 is matched with a wiping brush, a magnet is embedded in the wiping brush, a spray pipe 16 is paved on the wall 1 above the writing board 2, a plurality of water outlet holes are evenly formed in the spray pipe 16 towards one side of the writing board 2, a normally closed electromagnetic switch is arranged in each water outlet hole, the electromagnetic switches are in one-to-one correspondence with the induction coils, and the electromagnetic switches are electrically connected with.

When the teacher has drawn the figure and need wipe the writing on clipboard 2, teacher's accessible is wiped and is wiped the writing, when wiping the writing, wipe and make induction coil cutting magnetic induction line when moving on clipboard 2, when wiping and brushing certain induction coil department, can produce induced-current and send to control module among the induction coil, control module receives the electromagnetic switch of induced-current back control relevant position department and opens, clear water among the spray pipe 16 flows on clipboard 2, wetted wiping, let wipe the writing on clipboard 2 of brushing, make clipboard 2 wiped cleaner.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Multimedia system for economy teaching, including control module, be used for saving the storage module of teaching content, be used for showing the display module of teaching content and be used for writing the module of writing of teaching content, the display module sets firmly on the wall, its characterized in that: the writing module is positioned above the display module and can be used for the display module to display teaching contents, the teaching system also comprises a supervision module, a drawing module and an acquisition module, wherein the supervision module is used for teaching supervisors to know teaching progress, the supervision module is in wireless communication connection with the control module, the drawing module is used for assisting in drawing of figures in the economic teaching contents on the writing module, the acquisition module is used for acquiring the drawn figure information, the drawing module sends a completion signal to the acquisition module after the figures are drawn, the acquisition module sends the drawn figure information to the control module according to the completion signal, and the control module sends the figure information to the supervision module;

the writing module comprises a writing board fixedly installed on the wall surface through a bolt column, the drawing module comprises two transverse sliding rails and two longitudinal sliding rails, the transverse sliding rails are fixedly arranged at the top end and the bottom end of the writing board respectively, the transverse sliding rails are parallel to each other, the longitudinal sliding rails are fixedly arranged at the left end and the right end of the writing board respectively, the longitudinal sliding rails are parallel to each other, a plurality of longitudinal strips are arranged between the transverse sliding rails in a sliding fit manner, a plurality of transverse strips are arranged between the longitudinal sliding rails in a sliding fit manner, a rotating roller and a sliding roller are arranged on one side, facing the wall surface, of the writing board, the rotating roller is initially arranged at the wall surface of the initial position of the longitudinal strips, the initial position of the sliding roller is arranged at the left wall surface of the display module, covering cloth with colors and writing contents in pairs of color is wound on the rotating roller, the cloth heads of the covering cloth are fixedly arranged on the sliding roller, the sliding roller is driven by the longitudinal bar to slide in the left and right directions of the writing board;

the drawing module further comprises a sealing barrel located at the right end of the transverse sliding rail, a conductive coil is wound on the outer side wall of the sealing barrel and electrically connected with the acquisition module, a permanent magnet is in sliding fit in the sealing barrel, and an iron sliding head sliding along the transverse sliding rail is fixedly arranged on one side of the longitudinal bar facing the sealing barrel.

2. The economic teaching multimedia system according to claim 1, wherein: the transverse strip is provided with a plurality of first through holes distributed at equal intervals, the longitudinal strip is provided with a plurality of second through holes distributed at equal intervals, the diameters of the first through holes and the second through holes are the same, and the interval between the first through holes is equal to the interval between the second through holes.

3. The economic teaching multimedia system according to claim 1, wherein: the acquisition module includes the unit of making a video recording of aiming at the clipboard, the unit electricity connection control module of making a video recording, control module sends the picture that the unit of making a video recording was shot to the display module show, the unit of making a video recording passes through the support mounting on the clipboard next door.