CN107993502A - The demonstration device of size marking - Google Patents
The demonstration device of size marking Download PDFInfo
- Publication number
- CN107993502A CN107993502A CN201810072282.4A CN201810072282A CN107993502A CN 107993502 A CN107993502 A CN 107993502A CN 201810072282 A CN201810072282 A CN 201810072282A CN 107993502 A CN107993502 A CN 107993502A
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- China
- Prior art keywords
- slider
- fixedly connected
- housing
- range finding
- mark
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/065—Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Toys (AREA)
Abstract
The invention discloses the demonstration device of size marking, including housing, the left and right ends of housing bottom are fixedly connected with support plate by support leg, and the middle-end of support plate bottom is embedded with magnetic sheet, the bottom of support plate is fixedly connected with rubber slab, the left end of housing cavity is fixedly connected sequentially from top to bottom has central processing unit, image capture module, mark judgment module and mark dot picking module, the middle-end of case top to be fixedly connected with camera installing plate.The effect that the present invention passes through the first slider, the second slider, the first electric telescopic rod, the first obliquity sensor and the first radar range finding laser and motor, the 3rd slider, the second electric telescopic rod, the second obliquity sensor and the second radar range finding laser, people can be met to figure horizontally and vertically and the mark demand to circular arc, the center of circle, diameter and radius, the teaching load of teacher is not only reduced, while also increases the learning interest of student.
Description
Technical field
The present invention relates to the demonstration device of teaching aid technical field, specially size marking.
Background technology
Teaching is the distinctive personnel training activity of a kind of mankind that the religion of teacher and student are formed, and passes through this work
Dynamic, teacher is purposeful, the study of planned and organized ground guiding student and grasp cultural and technical knowledge and technical ability, promotion student are plain
Matter improves, and them is become the required people of society, teaching aid is student intuitively, is visually understood that the content of courses is made
The general name of the apparatus used when each appliances and teachers' instruction, can improve the learning interest of student, enrich perceptual knowledge, help
Help to form clear and definite concept, the observation ability of Developing Students ' and thinking ability, generally divide common teaching aid, special teaching aid, You Erjiao
Have three classes, in existing teaching process, teacher is manual operation, not only increases when carrying out size marking demonstration to figure
The teaching load of teacher, while the learning interest of student is also reduced, for this reason, it is proposed that the demonstration device of size marking.
The content of the invention
It is an object of the invention to provide the demonstration device of size marking, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical solution：The demonstration device of size marking, including housing, it is described
The left and right ends of housing bottom are fixedly connected with support plate by support leg, and the middle-end of support plate bottom is embedded with magnetic sheet,
The bottom of support plate is fixedly connected with rubber slab, and the left end of the housing cavity is fixedly connected sequentially has central processing from top to bottom
Device, image capture module, mark judgment module and mark dot picking module, the middle-end of the case top are fixedly connected with shooting
Head installing plate, and the front surface of camera installing plate is embedded with camera, the left end of the housing outer surface are fixedly connected with the
One slide bar, and the outer surface of the first slide bar slidably connects the first slider, the outer surface of first slider is fixedly connected
There is the second slide bar, and the outer surface of the second slide bar slidably connects the second slider, the outer surface of second slider is from upper
Being fixedly connected sequentially under has first support bar and the first electric telescopic rod, and first support bar and the first electric telescopic rod are remote
One end of second slider respectively by the first active section and the second active section be connected with the first radar range finding laser and
Second support bar, the second support bar is fixedly installed in the left end of the first radar range finding laser bottom, and the first radar is surveyed
The first obliquity sensor is installed with away from the middle-end at the top of laser, the right end of the housing outer surface is installed with electricity
Machine, and the output shaft of motor is fixedly connected with the 3rd slide bar, the outer surface of the 3rd slide bar slidably connects the 3rd slider, described
The outer surface of 3rd slider is fixedly connected sequentially from top to bottom the 3rd supporting rod and the second electric telescopic rod, and the 3rd support
The one end of bar and the second electric telescopic rod away from the 3rd slider is flexibly connected by the 3rd active section and the 4th active section respectively
There are the second radar range finding laser and the 4th supporting rod, the 4th supporting rod is fixedly installed in the second radar range finding laser bottom
The left end in portion, and the middle-end at the top of the second radar range finding laser is fixedly connected with the second obliquity sensor, the back of the body of the housing
Face is fixedly connected with display.
Preferably, the bottom of the magnetic sheet and the bottom of support plate are concordant, and the middle-end of rubber slab is hollow-core construction, and rubber
The thickness of plate is two to three millimeters.
Preferably, the right end of the housing cavity is fixedly connected with storage battery, and the upper end at left and right sides of housing is fixed to be connected
Loudspeaker is connected to, and the lower end on the right side of housing is connected with PLC controller by conducting wire.
Preferably, the junction of the motor and housing is fixedly connected with beam.
Preferably, its operating method comprises the following steps：
A, rectangle, square, semicircle, circle or circular arc are drawn on blackboard or display board；
B, housing is placed on dais；
C, the first slider, the second slider and the first electric telescopic rod and the first inclination angle is controlled to sense by PLC controller
Device and the first radar range finding laser, and by the effect of central processing unit, loudspeaker and display, realize to figure level side
To the mark demand with vertical direction；
D, motor, the 3rd slider and the second electric telescopic rod and the second obliquity sensor and the are controlled by PLC controller
Two radar range finding lasers, and by the effect of central processing unit, loudspeaker and display, are realized to the figure circular arc, center of circle, straight
Footpath and the mark demand of radius；
E, camera to blackboard or shows that the figure of plate surface is shot, and passes through central processing unit, image capture module, mark
Note judgment module and mark dot picking module come in judgment step C and step D markup information it is whether correct and whether spill tag, and
It will determine that result is shown by display and reports out by loudspeaker.
Compared with prior art, beneficial effects of the present invention are as follows：
1st, the present invention passes through the first slider, the second slider, the first electric telescopic rod, the first obliquity sensor and the first radar
Ranging laser and motor, the 3rd slider, the second electric telescopic rod, the second obliquity sensor and the second radar range finding laser
The effect of device, can meet people to figure horizontally and vertically and the mark need to circular arc, the center of circle, diameter and radius
Ask, not only reduce the teaching load of teacher, while also increase the learning interest of student.
2nd, the present invention has been embedded camera in the front surface of camera installing plate, can be to the figure of blackboard or displaying plate surface
Shot, at the same by central processing unit, image capture module, mark judgment module and mark dot picking module effect,
Can determine whether this demonstration device it is whether correct to markup information in image and whether spill tag, and will determine that result is shown by display
Out and by loudspeaker report out, effectively increase the accuracy of this demonstration device mark, the middle-end in support plate bottom
Magnetic sheet has been embedded, and rubber slab has been fixedly connected with the bottom of support plate, can meet that this demonstration device is placed in any material by people
The demand on matter surface, improves the applicability of this demonstration device.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the first electric telescopic rod structure diagram of the invention；
Fig. 3 is the second electric telescopic rod structure diagram of the invention；
Fig. 4 is inventive display structure diagram；
Fig. 5 is operation principle schematic diagram of the present invention.
In figure：1 housing, 2 loudspeakers, 3 the 3rd sliders, 4 camera installing plates, 5 cameras, 6 storage batteries, 7 first are slided
Bar, 8 central processing units, 9 second sliders, 10 image capture modules, 11 mark judgment modules, 12 second slide bars, 13 mark points
Pickup model, 14 support legs, 15 magnetic sheets, 16 motors, 17 the 3rd slide bars, 18 rubber slabs, 19 PLC controllers, 20 first activities
It is section, 21 first obliquity sensors, 22 first radar range finding lasers, 23 second support bars, 24 second active sections, 25 first electronic
Telescopic rod, 26 first sliders, 27 the 3rd supporting rods, 28 the 3rd active sections, 29 second obliquity sensors, 30 second radar range findings
Laser, 31 the 4th supporting rods, 32 the 4th active sections, 33 second electric telescopic rods, 34 first support bars, 35 displays, 36
Fagging.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
- 5 are please referred to Fig.1, the demonstration device of size marking, including housing 1, the left and right ends of 1 bottom of housing pass through support
Leg 14 is fixedly connected with support plate 36, and the middle-end of 36 bottom of support plate is embedded with magnetic sheet 15, and people can be met this demonstration device
The demand on any material surface is placed in, improves the applicability of this demonstration device, the bottom of support plate 36 is fixedly connected with rubber
Plate 18, the bottom of magnetic sheet 15 is concordant with the bottom of support plate 36, and the middle-end of rubber slab 18 is hollow-core construction, and the thickness of rubber slab 18
Spend for two to three millimeters, the left end of 1 inner cavity of housing is fixedly connected sequentially has central processing unit 8, image capture module from top to bottom
10th, judgment module 11 and mark dot picking module 13 are marked, the middle-end at the top of housing 1 is fixedly connected with camera installing plate 4, and
The front surface of camera installing plate 4 is embedded with camera 5, to blackboard or can show that the figure of plate surface is shot, lead at the same time
Central processing unit 8, image capture module 10, mark judgment module 11 and the effect for marking dot picking module 13 are crossed, can determine whether this
Demonstration device it is whether correct to markup information in image and whether spill tag, and will determine that result by display 35 show with
And reported and come out by loudspeaker 2, the accuracy of this demonstration device mark is effectively increased, the left end of 1 outer surface of housing, which is fixed, to be connected
The first slide bar 7 is connected to, and the outer surface of the first slide bar 7 slidably connects the first slider 26, the outer surface of the first slider 26
The second slide bar 12 is fixedly connected with, and the outer surface of the second slide bar 12 slidably connects the second slider 9, the second slider 9
Outer surface is fixedly connected sequentially from top to bottom 34 and first electric telescopic rod 25 of first support bar, and first support bar 34 and
The one end of one electric telescopic rod 25 away from the second slider 9 is flexibly connected by the first active section 20 and the second active section 24 respectively
There are the first radar range finding laser 22 and second support bar 23, second support bar 23 is fixedly installed in the first radar range finding laser
The left end of 22 bottoms, and the middle-end at the top of the first radar range finding laser 22 is installed with the first obliquity sensor 21, housing 1
The right end of outer surface is installed with motor 16, and the junction of motor 16 and housing 1 is fixedly connected with beam, and motor 16
Output shaft is fixedly connected with the 3rd slide bar 17, and the outer surface of the 3rd slide bar 17 slidably connects the 3rd slider 3, the 3rd slider
3 outer surface is fixedly connected sequentially from top to bottom the 3rd supporting rod 27 and the second electric telescopic rod 33, and the 3rd supporting rod 27
Pass through the 3rd active section 28 and the activity of the 4th active section 32 respectively with second one end of electric telescopic rod 33 away from the 3rd slider 3
The second radar range finding laser 30 and the 4th supporting rod 31 are connected with, the 4th supporting rod 31 is fixedly installed in the second radar range finding and swashs
The left end of 30 bottom of light device, and the middle-end at the top of the second radar range finding laser 30 is fixedly connected with the second obliquity sensor 29,
It can meet that figure horizontally and vertically and the mark demand to circular arc, the center of circle, diameter and radius, not only drops in people
The low teaching load of teacher, while the learning interest of student is also increased, the back side of housing 1 is fixedly connected with display 35,
The right end of 1 inner cavity of housing is fixedly connected with storage battery 6, and the upper end of the left and right sides of housing 1 has been fixedly connected with loudspeaker 2, and shell
The lower end on the right side of body 1 is connected with PLC controller 19 by conducting wire.
Its operating method comprises the following steps：
A, rectangle, square, semicircle, circle or circular arc are drawn on blackboard or display board；
B, housing 1 is placed on dais；
C, inclined by first slider 26 of the control of PLC controller 19, the second slider 9 and the first electric telescopic rod 25 and first
21 and first radar range finding laser 22 of angle transducer, and by the effect of central processing unit 8, loudspeaker 2 and display 35, it is real
The now mark demand to figure horizontally and vertically；
D, motor 16, the 3rd slider 3 and the second electric telescopic rod 33 and the second inclination angle is controlled to sense by PLC controller 19
29 and second radar range finding laser 30 of device, and by the effect of central processing unit 8, loudspeaker 2 and display 35, realize to figure
Shape circular arc, the center of circle, the mark demand of diameter and radius；
E, camera 5 to blackboard or shows that the figure of plate surface is shot, and passes through central processing unit 8, image capture module
10th, mark judgment module 11 and mark dot picking module 13 comes whether markup information is correct in judgment step C and step D and is
No spill tag, and will determine that result is shown by display 35 and reported by loudspeaker 2 and come out.
In use, pass through the first slider 26, the second slider 9, the first electric telescopic rod 25, the first obliquity sensor 21
With the first radar range finding laser 22 and motor 16, the 3rd slider 3, the second electric telescopic rod 33, the second obliquity sensor
29 and second radar range finding laser 30 effect, can meet people to figure horizontally and vertically and to circular arc,
The mark demand in the center of circle, diameter and radius, not only reduces the teaching load of teacher, while the study for also increasing student is emerging
Interest, camera 5 has been embedded in the front surface of camera installing plate 4, to blackboard or can show that the figure of plate surface is shot, together
When by central processing unit 8, image capture module 10, mark judgment module 11 and the effect for marking dot picking module 13, can sentence
Break this demonstration device it is whether correct to markup information in image and whether spill tag, and will determine that result is shown by display 35
Come and report by loudspeaker 2 to come out, effectively increase the accuracy of this demonstration device mark, the middle-end in 36 bottom of support plate
Magnetic sheet 15 has been embedded, and rubber slab 18 has been fixedly connected with the bottom of support plate 36, can meet that this demonstration device is placed in by people
The demand on any material surface, improves the applicability of this demonstration device.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. the demonstration device of size marking, including housing（1）, it is characterised in that：The housing（1）The left and right ends of bottom pass through
Support leg（14）It is fixedly connected with support plate（36）, and support plate（36）The middle-end of bottom is embedded with magnetic sheet（15）, support plate
（36）Bottom be fixedly connected with rubber slab（18）, the housing（1）The left end of inner cavity is fixedly connected sequentially in having from top to bottom
Central processor（8）, image capture module（10）, mark judgment module（11）With mark dot picking module（13）, the housing（1）
The middle-end at top is fixedly connected with camera installing plate（4）, and camera installing plate（4）Front surface be embedded with camera（5）,
The housing（1）The left end of outer surface is fixedly connected with the first slide bar（7）, and the first slide bar（7）Outer surface slidably connect
First slider（26）, first slider（26）Outer surface be fixedly connected with the second slide bar（12）, and the second slide bar
（12）Outer surface slidably connect the second slider（9）, second slider（9）Outer surface fix successively from top to bottom
It is connected with first support bar（34）With the first electric telescopic rod（25）, and first support bar（34）With the first electric telescopic rod（25）
Away from the second slider（9）One end pass through the first active section respectively（20）With the second active section（24）It is connected with the first thunder
Up to ranging laser（22）And second support bar（23）, the second support bar（23）It is fixedly installed in the first radar range finding laser
Device（22）The left end of bottom, and the first radar range finding laser（22）The middle-end at top is installed with the first obliquity sensor
（21）, the housing（1）The right end of outer surface is installed with motor（16）, and motor（16）Output shaft be fixedly connected with
Three slide bars（17）, the 3rd slide bar（17）Outer surface slidably connect the 3rd slider（3）, the 3rd slider（3）It is outer
Surface is fixedly connected sequentially from top to bottom the 3rd supporting rod（27）With the second electric telescopic rod（33）, and the 3rd supporting rod（27）
With the second electric telescopic rod（33）Away from the 3rd slider（3）One end pass through the 3rd active section respectively（28）With the 4th active section
（32）It is connected with the second radar range finding laser（30）With the 4th supporting rod（31）, the 4th supporting rod（31）Fixed peace
Loaded on the second radar range finding laser（30）The left end of bottom, and the second radar range finding laser（30）The middle-end at top, which is fixed, to be connected
It is connected to the second obliquity sensor（29）, the housing（1）The back side be fixedly connected with display（35）.
2. the demonstration device of size marking according to claim 1, it is characterised in that：The magnetic sheet（15）Bottom and support
Plate（36）Bottom it is concordant, rubber slab（18）Middle-end be hollow-core construction, and rubber slab（18）Thickness be two to three millimeters.
3. the demonstration device of size marking according to claim 1, it is characterised in that：The housing（1）The right end of inner cavity is consolidated
Surely it is connected with storage battery（6）, housing（1）The upper end of the left and right sides has been fixedly connected with loudspeaker（2）, and housing（1）Right side
Lower end is connected with PLC controller by conducting wire（19）.
4. the demonstration device of size marking according to claim 1, it is characterised in that：The motor（16）With housing（1）'s
Junction is fixedly connected with beam.
5. the demonstration device of size marking according to any one of claims 1 to 4, it is characterised in that：Its operating method includes
Following steps：
A, rectangle, square, semicircle, circle or circular arc are drawn on blackboard or display board；
B, by housing（1）It is placed on dais；
C, PLC controller is passed through（19）Control the first slider（26）, the second slider（9）With the first electric telescopic rod（25）With
And first obliquity sensor（21）With the first radar range finding laser（22）, and pass through central processing unit（8）, loudspeaker（2）With
Display（35）Effect, realize the mark demand horizontally and vertically to figure；
D, PLC controller is passed through（19）Control motor（16）, the 3rd slider（3）With the second electric telescopic rod（33）And second
Obliquity sensor（29）With the second radar range finding laser（30）, and pass through central processing unit（8）, loudspeaker（2）And display
（35）Effect, realize the mark demand to figure circular arc, the center of circle, diameter and radius；
E, camera（5）To blackboard or show that the figure of plate surface is shot, and pass through central processing unit（8）, Image Acquisition
Module（10）, mark judgment module（11）With mark dot picking module（13）Whether carry out in judgment step C and step D markup information
It is correct and whether spill tag, and will determine that result passes through display（35）Show and pass through loudspeaker（2）Report comes out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810072282.4A CN107993502A (en) | 2018-01-25 | 2018-01-25 | The demonstration device of size marking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810072282.4A CN107993502A (en) | 2018-01-25 | 2018-01-25 | The demonstration device of size marking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107993502A true CN107993502A (en) | 2018-05-04 |
Family
ID=62039880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810072282.4A Pending CN107993502A (en) | 2018-01-25 | 2018-01-25 | The demonstration device of size marking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107993502A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568418A (en) * | 2022-02-16 | 2022-06-03 | 海南思沃家电子商务有限公司 | Agricultural impurity removal system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084331A (en) * | 1976-10-27 | 1978-04-18 | Nottoli Le Roi G | Backgammon teaching device |
| SE466691B (en) * | 1990-07-17 | 1992-03-23 | Intellecta Ltd | Drawing device |
| JP2814480B2 (en) * | 1986-01-23 | 1998-10-22 | カシオ計算機株式会社 | Writing / drawing device |
| EP1746391A1 (en) * | 2005-07-19 | 2007-01-24 | Sega Corporation | Image processing apparatus, mark drawing method and program thereof |
| JP2009259215A (en) * | 2008-03-18 | 2009-11-05 | Zenrin Co Ltd | Road surface marking map generation method |
| CN103954268A (en) * | 2014-03-13 | 2014-07-30 | 刘国栋 | Portable traffic accident on-site surveying instrument |
| CN204801332U (en) * | 2015-06-09 | 2015-11-25 | 于笑洋 | Teaching aid is used to multi -functional mathematics class |
| CN205044381U (en) * | 2015-10-20 | 2016-02-24 | 黑龙江外国语学院 | Scriber for english four -line frames |
| CN107464282A (en) * | 2017-08-05 | 2017-12-12 | 福建乐行道网络科技有限公司 | Camera modeling method and system on the basis of a kind of paper by A4 |
-
2018
- 2018-01-25 CN CN201810072282.4A patent/CN107993502A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084331A (en) * | 1976-10-27 | 1978-04-18 | Nottoli Le Roi G | Backgammon teaching device |
| JP2814480B2 (en) * | 1986-01-23 | 1998-10-22 | カシオ計算機株式会社 | Writing / drawing device |
| SE466691B (en) * | 1990-07-17 | 1992-03-23 | Intellecta Ltd | Drawing device |
| EP1746391A1 (en) * | 2005-07-19 | 2007-01-24 | Sega Corporation | Image processing apparatus, mark drawing method and program thereof |
| JP2009259215A (en) * | 2008-03-18 | 2009-11-05 | Zenrin Co Ltd | Road surface marking map generation method |
| CN103954268A (en) * | 2014-03-13 | 2014-07-30 | 刘国栋 | Portable traffic accident on-site surveying instrument |
| CN204801332U (en) * | 2015-06-09 | 2015-11-25 | 于笑洋 | Teaching aid is used to multi -functional mathematics class |
| CN205044381U (en) * | 2015-10-20 | 2016-02-24 | 黑龙江外国语学院 | Scriber for english four -line frames |
| CN107464282A (en) * | 2017-08-05 | 2017-12-12 | 福建乐行道网络科技有限公司 | Camera modeling method and system on the basis of a kind of paper by A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568418A (en) * | 2022-02-16 | 2022-06-03 | 海南思沃家电子商务有限公司 | Agricultural impurity removal system |
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Application publication date: 20180504 |
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