CN114927011A - Multi-type graph projection demonstration device and demonstration method thereof - Google Patents
Multi-type graph projection demonstration device and demonstration method thereof Download PDFInfo
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- G—PHYSICS
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Abstract
The invention discloses a multi-type graph projection demonstration device and a demonstration method thereof. According to the invention, the plurality of movable columns are arranged on the demonstration support to form the demonstration area, when the object to be demonstrated is completely sunk into the demonstration area, the visual area for projection of the object to be demonstrated pushes the corresponding movable columns to complete the motion process, and after the movable columns leave the initial positions, the demonstration lamp positioned at the central position of the end surfaces of the movable columns is lightened, so that the visual area of the object to be demonstrated is converted into the lightening area of the demonstration lamp, the attention of the visual area can be improved through the demonstration lamp, the possibility of confusion is eliminated by blocking the non-visual area through the movable columns, and an accurate projection demonstration shape is formed to cultivate the capture sensitivity of the visual area.
Description
Technical Field
The invention relates to the technical field of projection demonstration, in particular to a multi-type graph projection demonstration device and a demonstration method thereof.
Background
Engineering drawing is a professional basic subject, is based on the projection theory of drawing geometry, takes a ruler, compasses and a drawing board as tools, takes a blackboard, a wood mold and a wall map as media, and has a history of more than 200 years. The mechanical engineering drawing is an entrance course reflecting the characteristics of the engineering and science, and is also one of professional basic courses which students of the engineering and science must learn. Plays an important role in the aspects of cultivating the space imagination and the conception capability of students as the basis of creative thinking, promoting the industrialization process and the like. The engineering drawing is a technical document essential to production, and is a universal 'engineering language' worldwide. Drawing and reading engineering drawings with correct specifications is a necessary basic quality for engineering technicians.
The engineering drawing mainly comprises the following modules: basic knowledge of drawing: the method comprises drawing standard and drawing of plan. Drawing basic skills: including ruler drawing, freehand drawing, and computer drawing. Basic theory: including drawing geometry and associated graphic theory. Pattern expression basis: comprises a projection drawing and a pattern expression method of an object. Reading and drawing of part drawings and assembly drawings and the like.
Among them, for projection mapping, the most difficult is the process of how to convert a three-dimensional entity into a two-dimensional plane, and after questionnaire and corresponding ergonomic analysis, the human brain in the conversion process is most easily confused by the non-visible area of the demo to be projected, or the visible area of the demo to be projected is not very noticeable;
the current projection demonstration technology is as follows: 1) the flexible traction linear two-side projection demonstration board with the space model, with application number 201611134918.0, adopts a structure that a space linear model mechanism is linked with linear projection, especially adopts a structure that two fixed-length line pipes and movable closed line ropes in the line pipes are adopted, and more intuitively shows the relation between the position change of the space linear and the change of the projection of the space linear. The operation is convenient, and only the front projection of the moving point is controlled, the horizontal projection of the moving point and the side projection of the moving point are automatically drawn, so that 7 linear positions can be swung out; 2) the utility model provides an engineering drawing model projection presentation device of 201610887894.X, it passes through fine rule and slip table, come the tensioning to fix and treat the projection object, make its space geometry element's position remain unchanged, and through worm gear mechanism, turn into projection mechanism's rotary motion with step motor pivoting rotary motion, with this production projection plane that is in different spatial position, the realization replaces the purpose of old projection plane with new projection plane, thereby make space geometry element become to being favorable to directly perceived accurate expression to treat the position of projection object geometry, then find out its projection on new projection plane, finally realize the face changing method.
After analyzing the above prior art, the following conclusions can be drawn: in the prior art, the spatial position of a projection plane is changed, so that the effect of plane-changing projection is achieved while different views are projected; but do not address the problem of the brain being easily confused by the non-viewable areas of the presentation to be projected and the viewable areas of the presentation to be projected being of less interest.
Disclosure of Invention
The invention aims to provide a multi-type graphic projection demonstration device and a demonstration method thereof, wherein a visual area of an object to be demonstrated is converted into a lighting area of a demonstration lamp through a movable column and the demonstration lamp, the attention degree of the visual area is further improved through the demonstration lamp, the possibility of confusion is eliminated through blocking a non-visual area through the movable column, an accurate projection demonstration shape is formed, and the capture sensitivity of the visual area is cultured.
In order to achieve the purpose, the invention provides a multi-type graphic projection demonstration device which comprises a base, a demonstration mechanism and a display mechanism, wherein the demonstration mechanism and the display mechanism are installed on the base; the demonstration support is provided with a plurality of through holes corresponding to each movable column, the electromagnetic adsorption component comprises an electromagnetic generation part and an electromagnetic adsorption part which are matched with each other and are in an annular structure, the electromagnetic generation part is arranged in the through holes, the electromagnetic adsorption part is arranged at one end, close to an observer, of each movable column, a demonstration lamp is arranged at the central position of the end face of the end, when an object to be demonstrated pushes the corresponding movable column to move, the corresponding demonstration lamp is turned on, and when the electromagnetic generation part adsorbs the electromagnetic adsorption part to reset, the demonstration lamp is turned off; the display mechanism is including setting up the display screen of demonstration frame side, the display screen shows the first projection demonstration shape in demonstration lamp illumination zone territory.
Preferably, the base includes the adjustable rectangle body, be provided with horizontal unscrambler on the rectangle body, horizontal unscrambler includes two spirit levels, the spirit level sets up respectively on the adjacent side of rectangle body, when two the spirit level is all in the horizontality, the rectangle body is in the horizontality, then stops the regulation.
Preferably, the lower surface of the rectangular body is provided with a lifting assembly, the lifting assembly comprises lifting cylinders which are respectively arranged at four corners of the rectangular body, and when the gradienter is in a non-horizontal state, the lifting cylinders are correspondingly started and adjusted.
Preferably, be provided with the switch block on the demonstration support, the switch block is including electromagnetism start-stop button, horizontal adjustment button and demonstration start-stop button, electromagnetism start-stop button with electromagnetism generation portion electric connection, horizontal adjustment button with lift cylinder electric connection, show start-stop button with the display screen electric connection.
Preferably, the two end parts of the movable column are provided with anti-falling limiting parts, and the limiting parts can be lapped on the annular structure of the electromagnetic generating part.
Preferably, each electromagnetic adsorption portion is provided with a displacement sensor, an equal movable column in each displacement value selected from the first projection demonstration shape is determined as a second projection demonstration shape, the accuracy of the second projection demonstration shape is higher than that of the first projection demonstration shape, and the second projection display shape is displayed on the display screen.
Preferably, the display screen is of a rectangular structure, the lower portion of the rectangular structure is an initial display area, the upper portion of the rectangular structure is a circular display area, the first projection display shape or the second projection display shape after projection demonstration is firstly displayed in the initial display area, and then the first projection display shape or the second projection display shape are sequentially displayed in the circular display area in a rolling manner according to a projection sequence.
Preferably, the diameter of the movable column is 5mm to 10 mm.
The invention also provides a multi-type graph projection demonstration method, which comprises the following contents:
preparation: starting a power supply, pressing a horizontal adjusting button, starting a lifting cylinder in the lifting assembly, and adjusting the base to be in a horizontal state; pressing an electromagnetic start-stop button in the demonstration mechanism, starting an electromagnetic adsorption component, adsorbing an electromagnetic adsorption part by an electromagnetic generation part in the electromagnetic adsorption component, adjusting all movable columns to initial positions, and closing the electromagnetic generation part; pressing down a display start-stop button to start a display screen; projection demonstration work: pressing an object to be demonstrated on a demonstration support in a demonstration area, and pushing the movable column by using a surface to be projected of the object to be demonstrated until the object to be demonstrated is completely sunk into the movable column which is not moved; as the movable column is pushed, the demonstration lamp on the movable column is lightened; the display screen displays a first projection demonstration shape of the demonstration lamp lighting area;
resetting: the electromagnetic start-stop button is pressed, the electromagnetic generating part adsorbs the electromagnetic adsorption part, all the movable columns are adjusted to the initial positions, and the demonstration lamp is turned off; the electromagnetic generating part and the display screen are both closed.
Preferably, the displacement value detected by the displacement sensor on each electromagnetic adsorption part is transmitted to an industrial personal computer, the industrial personal computer selects the equal movable columns in the displacement values, optimizes the first projection demonstration shape into a second projection demonstration shape according to the corresponding position information of the movable columns, and displays the second projection display shape on the display screen.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the plurality of movable columns are arranged on the demonstration support to form a demonstration area, when the object to be demonstrated is completely sunk into the demonstration area, the visual area for projection of the object to be demonstrated pushes the corresponding movable columns to complete the motion process, and after the movable columns leave the initial positions, the demonstration lamp positioned at the central position of the end surfaces of the movable columns is lightened, so that the visual area of the object to be demonstrated is converted into the lightening area of the demonstration lamp, thus the attention of the visual area can be improved through the demonstration lamp, the possibility of confusion is eliminated by blocking the non-visual area through the movable columns, and an accurate projection demonstration shape is formed to cultivate the capture sensitivity of the visual area; furthermore, in order to facilitate continuous use of the movable columns, each movable column is provided with an electromagnetic adsorption part, correspondingly, an electromagnetic generation part for adsorbing the electromagnetic adsorption part is arranged on the demonstration support, the electromagnetic generation part is electrified after the projection demonstration is finished, and the movable columns are adjusted to the initial positions through the adsorption electromagnetic adsorption parts.
2. In the invention, gradienters are respectively arranged on the adjacent edges of the base, and the principle that a horizontal plane can be determined by utilizing two horizontally crossed straight lines is utilized to ensure that the base is in a horizontal state. Further, for the convenience of adjusting the base to a horizontal state, the mode that lifting cylinders are arranged at four corners of the base is adopted, horizontal information can be provided according to the level gauge, the corresponding lifting cylinders are automatically adjusted, and horizontal adjustment work is rapidly completed.
3. According to the invention, each electromagnetic adsorption part is provided with a displacement sensor to determine the moving distance of the movable column, and when the visible area is a plane, the moving distances of all the movable columns in the plane projection should be equal, so that the equal movable columns in the displacement values are selected from the first projection demonstration shape to be determined as the second projection demonstration shape, and the problem that the movable columns which do not belong to the projection demonstration shape move a small amount due to misoperation and other reasons is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described 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 to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a multi-type graphic projection presentation apparatus according to the present invention;
FIG. 2 is a rear view of FIG. 1 (without the display screen);
FIG. 3 is a schematic view of the structure of the movable column;
FIG. 4 is a schematic view of the structure of FIG. 1 with the movable post removed;
FIG. 5 is a schematic structural diagram of the electromagnetic generating portion in FIG. 4;
wherein, 1 base, 2 demonstration supports, 3 movable columns, 4 electromagnetism generation portions, 5 electromagnetism absorption portions, 6 demonstration lamps, 7 display screens, 8 spirit levels, 9 lift cylinder, 10 electromagnetism start and stop buttons, 11 horizontal adjustment button, 12 demonstration start and stop buttons.
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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 5, the invention provides a multi-type graph projection demonstration device, which comprises a base 1, a demonstration mechanism and a display mechanism, wherein the demonstration mechanism and the display mechanism are installed on the base 1, the demonstration mechanism comprises a demonstration bracket 2, movable columns 3 and electromagnetic adsorption components, and the movable columns 3 are arranged on the demonstration bracket 2 in an array shape and form a demonstration area; a plurality of through holes corresponding to each movable column 3 are formed in the demonstration support 2, each electromagnetic adsorption component comprises an electromagnetic generation part 4 and an electromagnetic adsorption part 5 which are matched with each other and are in an annular structure, each electromagnetic generation part 4 is arranged in each through hole, each electromagnetic adsorption part 5 is arranged at one end, close to an observer, of each movable column 3, a demonstration lamp 6 is arranged at the central position of the end face of each end, when an object to be demonstrated pushes the corresponding movable column 3 to move, the corresponding demonstration lamp 6 is turned on, and when the electromagnetic generation parts 4 adsorb the electromagnetic adsorption parts 5 to reset, the demonstration lamps 6 are turned off; the display mechanism comprises a display screen 7 arranged beside the demonstration rack, and the display screen 7 displays a first projection demonstration shape of a lighting area of the demonstration lamp 6. The base 1 can be kept in a horizontal state or a relatively horizontal state, and depending on the clearance value between the outer surface of the movable column 3 and the inner surface of the annular structure of the electromagnetic generating part 4, the smaller the clearance value is, the less easily the movable column 3 is pushed, and at the moment, even if the base 1 is not completely horizontal, the phenomenon that the movable column 3 moves by itself cannot be caused, and conversely, the larger the clearance value is, the more easily the movable column 3 is pushed, and at the moment, the base 1 needs to be in a completely horizontal state, so that the movable column 3 can be ensured to move correspondingly only under the pushing force of an object to be demonstrated and cannot move (slide) by itself; the shape of the demonstration area can be rectangular, circular or other shapes, and can be selected according to actual needs; the electromagnetic generating part 4 is an electromagnet structure, the circuit of the electromagnetic generating part is connected with a power supply point through a wire slot arranged in the demonstration support 2, and the electromagnetic adsorption part 5 is adsorbable metal or a magnet with adsorbable magnetic poles; the start and stop of the demonstration lamp 6 can be realized by setting a structure which is switched on when separated in the prior art, such as a deformable metal connecting sheet, when the movable column 3 is at an initial position, the metal connecting sheet is switched off, and when the movable column 3 moves, the metal connecting sheet recovers to deform to switch on a circuit, and the structure is many, and is not described herein;
the working process of the technical scheme is as follows:
preparation: starting a power supply, and adjusting the base 1 to be in a horizontal state; starting the electromagnetic adsorption component, enabling an electromagnetic generation part 4 in the electromagnetic adsorption component to adsorb an electromagnetic adsorption part 5, adjusting all the movable columns 3 to initial positions, and closing the electromagnetic generation part 4; starting the display screen 7;
projection demonstration work: pressing an object to be demonstrated on a demonstration area on the demonstration support 2, and pushing the movable column 3 by using a surface to be projected of the object to be demonstrated until the object to be demonstrated is completely sunk into the movable column 3 which is not moved; with the pushing of the movable column 3, the demonstration lamp 6 on the movable column 3 is lightened; the position information of the movable column 3 is transmitted to the display screen 7 to be displayed, or images formed by the demonstration lamps 6 after the movable column 3 is moved are acquired through other external emission equipment and transmitted to the display screen 7 to be displayed, namely the display screen 7 displays a first projection demonstration shape of an illumination area of the demonstration lamps 6;
resetting: the electromagnetic adsorption component is started again, the electromagnetic generation part 4 adsorbs the electromagnetic adsorption part 5, all the movable columns 3 are adjusted to the initial positions, and the demonstration lamp 6 is turned off; the electromagnetic generating portion 4 and the display screen 7 are both turned off.
Namely, in the invention, a plurality of movable columns 3 are arranged on a demonstration support 2 to form a demonstration area, when an object to be demonstrated is completely sunk into the demonstration area, a visual area for projection of the object to be demonstrated pushes the corresponding movable columns 3 to complete the motion process, and after the movable columns 3 leave the initial positions, a demonstration lamp 6 positioned at the central position of the end surfaces of the movable columns 3 is lightened, so that the visual area of the object to be demonstrated is converted into the lightening area of the demonstration lamp 6, the attention of the visual area can be improved through the demonstration lamp 6, the possibility of confusion is eliminated by blocking the non-visual area through the movable columns 3, and an accurate projection demonstration shape is formed to cultivate the capturing sensitivity of the visual area; furthermore, in order to facilitate the continuous use of the movable columns 3, each movable column 3 is provided with an electromagnetic adsorption part 5, correspondingly, the demonstration support 2 is provided with an electromagnetic generation part 4 for adsorbing the electromagnetic adsorption part 5, the electromagnetic generation part 4 is electrified after the projection demonstration is finished, and the movable columns 3 are adjusted to the initial positions through the adsorption electromagnetic adsorption parts 5.
In order to accurately determine the horizontal degree of the base 1, the base 1 comprises an adjustable rectangular body, the rectangular body can be in other shapes such as a triangle, a trapezoid and the like, as long as adjacent sides exist, a horizontal corrector is arranged on the rectangular body, the horizontal corrector comprises two gradienters 8, the gradienters 8 are respectively arranged on the adjacent sides of the rectangular body, and when the two gradienters 8 are in a horizontal state, the rectangular body is in the horizontal state, and then the adjustment is stopped; in the invention, the gradienters 8 are respectively arranged on the adjacent edges of the base 1, and the principle that a horizontal plane can be determined by utilizing two horizontally crossed straight lines is utilized to ensure that the base 1 is in a horizontal state.
The lower surface of the rectangular body is provided with a lifting assembly, the lifting assembly comprises lifting cylinders 9 respectively arranged at four corners of the rectangular body, when other structures with automatic lifting functions are available, and when the gradienter 8 is in a non-horizontal state, the corresponding lifting cylinders 9 are started to adjust; for the convenience of adjusting base 1 to horizontality promptly, adopt the mode of setting up lift cylinder 9 in base 1 four corners, can provide horizontal information according to spirit level 8, horizontal adjustment work is accomplished fast to the corresponding lift cylinder 9 of automatic adjustment.
In order to limit the moving distance of the movable column 3, the two ends of the movable column 3 are provided with anti-falling limiting parts (not shown), and the limiting parts can be lapped on the annular structure of the electromagnetic generating part 4.
In order to optimize the first projection demonstration shape, each electromagnetic adsorption part 5 is provided with a displacement sensor, the equal movable columns 3 in each displacement value selected from the first projection demonstration shape are determined to be a second projection demonstration shape, the precision of the second projection demonstration shape is higher than that of the first projection demonstration shape, and the second projection display shape is displayed on a display screen 7. Namely, in the invention, each electromagnetic adsorption part 5 is provided with a displacement sensor to determine the moving distance of the movable column 3, and when the visible area is a plane, because the moving distances of all the movable columns 3 in the plane projection should be equal, the equal movable columns 3 in all displacement values are selected from the first projection demonstration shape to be determined as the second projection demonstration shape, thereby avoiding the problem that the movable columns 3 which do not belong to the projection demonstration shape generate a small amount of movement due to misoperation and other reasons. Aiming at the situation that the visual area is non-planar, each displacement value can be divided into different intervals, such as a certain number of lowest displacement values, a small number of highest displacement values and a plurality of middle displacement values, so as to adapt to the non-planar special-shaped structure.
As a specific embodiment, the display screen 7 in the present invention is a rectangular structure, the lower portion of the rectangular structure is an initial display area, the upper portion of the rectangular structure is a circular display area, the first projection display shape or the second projection display shape after the projection demonstration is displayed in the initial display area, and then a plurality of the first projection display shapes or the second projection display shapes are sequentially displayed in the circular display area in a scrolling manner according to the projection sequence.
As a specific implementation scheme, a switch group is arranged on the demonstration support 2 and comprises an electromagnetic start-stop button 10, a horizontal adjusting button 11 and a display start-stop button 12, the electromagnetic start-stop button 10 is electrically connected with the electromagnetic generating portion 4, the horizontal adjusting button 11 is electrically connected with the lifting cylinder 9, and the display start-stop button 12 is electrically connected with the display screen 7.
As a specific embodiment, the diameter of the movable column 3 in the present invention is 5mm to 10 mm.
The invention also provides a multi-type graph projection demonstration method, which comprises the following steps:
preparation: starting a power supply, pressing a horizontal adjusting button 11, starting a lifting cylinder 9 in the lifting assembly, and adjusting the base 1 to be in a horizontal state; pressing an electromagnetic start-stop button 10 in the demonstration mechanism, starting an electromagnetic adsorption component, adsorbing an electromagnetic adsorption part 5 by an electromagnetic generation part 4 in the electromagnetic adsorption component, adjusting all movable columns 3 to initial positions, and closing the electromagnetic generation part 4; pressing down a display start-stop button 12 to start the display screen 7; projection demonstration work: pressing an object to be demonstrated on the demonstration support 2 in a demonstration area, and pushing the movable column 3 by using a surface to be projected of the object to be demonstrated until the object to be demonstrated is completely sunk into the movable column 3 which is not moved; with the pushing of the movable column 3, the demonstration lamp 6 on the movable column 3 is lighted; the display screen 7 displays a first projection demonstration shape of an illuminated area of the demonstration lamp 6;
resetting: pressing the electromagnetic start-stop button 10, the electromagnetic generating part 4 adsorbs the electromagnetic adsorption part 5, all the movable columns 3 are adjusted to the initial positions, and the demonstration lamp 6 is turned off; the electromagnetic generating portion 4 and the display screen 7 are both turned off.
According to the invention, a displacement value detected by a displacement sensor on each electromagnetic adsorption part 5 is transmitted to an industrial personal computer, the industrial personal computer selects the equal movable columns 3 in the displacement values, optimizes a first projection demonstration shape into a second projection demonstration shape through the position information of the corresponding movable columns 3, and displays the second projection demonstration shape in a display screen 7.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the disclosed embodiments without departing from the spirit and scope of the present invention.
Claims (10)
1. A multi-type graph projection demonstration device is characterized by comprising a base, a demonstration mechanism and a display mechanism, wherein the demonstration mechanism and the display mechanism are installed on the base; the demonstration support is provided with a plurality of through holes corresponding to each movable column, the electromagnetic adsorption component comprises an electromagnetic generation part and an electromagnetic adsorption part which are matched with each other and are in an annular structure, the electromagnetic generation part is arranged in the through holes, the electromagnetic adsorption part is arranged at one end, close to an observer, of each movable column, a demonstration lamp is arranged at the central position of the end face of the end, when an object to be demonstrated pushes the corresponding movable column to move, the corresponding demonstration lamp is turned on, and when the electromagnetic generation part adsorbs the electromagnetic adsorption part to reset, the demonstration lamp is turned off; the display mechanism is including setting up the display screen of demonstration frame side, the display screen shows the first projection demonstration shape in demonstration lamp illumination zone territory.
2. The multi-type graphic projection presentation device of claim 1, wherein: the base includes the adjustable rectangle body, be provided with horizontal unscrambler on the rectangle body, horizontal unscrambler includes two spirit levels, the spirit level sets up respectively on the adjacent side of rectangle body, when two the spirit level is all in the horizontality, the rectangle body is in the horizontality, then stops to adjust.
3. The multi-type graphic projection presentation device of claim 2, wherein: the lower surface of the rectangular body is provided with a lifting assembly, the lifting assembly comprises lifting cylinders which are respectively arranged at four corners of the rectangular body, and when the gradienter is in a non-horizontal state, the lifting cylinders are correspondingly started and adjusted.
4. The multi-type graphic projection presentation device of claim 3, wherein: be provided with the switch group on the demonstration support, the switch group is opened and close button, horizontal adjustment button and demonstration and is opened and close the button including electromagnetism, electromagnetism open and close the button with electromagnetism produces a portion electric connection, horizontal adjustment button with lift cylinder electric connection, show open and close the button with the display screen electric connection.
5. The multi-type graphic projection presentation device of claim 1, wherein: the two end parts of the movable column are provided with anti-drop limiting parts, and the limiting parts can be lapped on the annular structure of the electromagnetic generating part.
6. The multi-type graphic projection presentation device of claim 1 or 5, wherein: each electromagnetic adsorption part is provided with a displacement sensor, equal movable columns in displacement values selected from the first projection demonstration shapes are determined to be second projection demonstration shapes, the accuracy of the second projection demonstration shapes is higher than that of the first projection demonstration shapes, and the second projection display shapes are displayed on the display screen.
7. The multi-type graphic projection presentation device of claim 6, wherein: the display screen is of a rectangular structure, the lower portion of the rectangular structure is an initial display area, the upper portion of the rectangular structure is a circular display area, the first projection display shape or the second projection display shape after projection demonstration is displayed in the initial display area, and then the first projection display shape or the second projection display shape are sequentially displayed in the circular display area in a rolling mode according to a projection sequence.
8. The multi-type graphic projection presentation device of claim 7, wherein: the diameter of the movable column is 5mm to 10 mm.
9. A multi-type graph projection demonstration method is characterized by comprising the following contents:
preparation: starting a power supply, pressing a horizontal adjusting button, starting a lifting cylinder in the lifting assembly, and adjusting the base to be in a horizontal state; pressing an electromagnetic start-stop button in the demonstration mechanism, starting an electromagnetic adsorption component, adsorbing an electromagnetic adsorption part by an electromagnetic generation part in the electromagnetic adsorption component, adjusting all movable columns to initial positions, and closing the electromagnetic generation part; pressing a display start-stop button to start a display screen; projection demonstration work: pressing an object to be demonstrated on a demonstration support in a demonstration area, and pushing the movable column by using a surface to be projected of the object to be demonstrated until the object to be demonstrated is completely sunk into the movable column which is not moved; as the movable column is pushed, the demonstration lamp on the movable column is lightened; the display screen displays a first projection demonstration shape of the demonstration lamp lighting area;
resetting: the electromagnetic start-stop button is pressed, the electromagnetic generating part adsorbs the electromagnetic adsorption part, all the movable columns are adjusted to the initial positions, and the demonstration lamp is turned off; the electromagnetic generating part and the display screen are both closed.
10. The multi-type graphic projection presentation method of claim 9, wherein: and the displacement value detected by the displacement sensor on each electromagnetic adsorption part is transmitted to an industrial personal computer, the industrial personal computer selects the equal movable columns in the displacement values, optimizes the first projection demonstration shape into a second projection demonstration shape through the corresponding position information of the movable columns, and displays the second projection demonstration shape on the display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210591259.2A CN114927011B (en) | 2022-05-27 | 2022-05-27 | Multi-type graphic projection demonstration device and demonstration method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210591259.2A CN114927011B (en) | 2022-05-27 | 2022-05-27 | Multi-type graphic projection demonstration device and demonstration method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114927011A true CN114927011A (en) | 2022-08-19 |
| CN114927011B CN114927011B (en) | 2024-03-22 |
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