CN107993494A - One kind is based on rotating LED point-line-surface body demonstration instrument for teaching - Google Patents
One kind is based on rotating LED point-line-surface body demonstration instrument for teaching Download PDFInfo
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- CN107993494A CN107993494A CN201810055207.7A CN201810055207A CN107993494A CN 107993494 A CN107993494 A CN 107993494A CN 201810055207 A CN201810055207 A CN 201810055207A CN 107993494 A CN107993494 A CN 107993494A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- 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
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
- G09B23/04—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics for geometry, trigonometry, projection or perspective
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Abstract
The present invention provides one kind and is based on rotating LED point-line-surface body demonstration instrument for teaching, including：Pedestal；The driving motor being fixed on above pedestal；Fixed disc, the center of circle of the fixed disc are fixed in the drive shaft of the driving motor；LED rotation demonstration apparatus is fixed on the fixed disc；The rotation demonstration apparatus includes：Power module；The electric rotating machine being connected with power module；It is fixed on the main shaft of the electric rotating machine, follows the display of the main axis of the electric rotating machine；Controller, for controlling the rotating speed of electric rotating machine and the dispaly state of display.Student is enabled to move into face to the point is moved into a line, line, face is moved adult presence and intuitively recognized.
Description
Technical field
The present invention relates to teaching instrument and equipment technical field, and in particular to one kind is drilled based on the teaching of rotating LED point-line-surface body
Show instrument.
Background technology
With the development of epoch and the mankind, the curiosity of classmates is more and more stronger now, they are full of the unknown world
Explore and be intended to, but due to the age, it is difficult to allow classmates to understand completely thoroughly that teacher, which only leans on oral tell about with PPT demonstrations,
Classmates or confused.By relevant model come aided education, and allow classmates' hands-on practice, so can not only
Uninteresting knowledge is become more lively, allows student to be easy to receive, moreover it is possible to motivate students' interest in learning.It can also mitigate at the same time old
The teaching load of teacher.
Instruments used for education refer to the material object and object teaching that teaching idea is embodied in education activities, is mainly used in teaching
Utensil, famous educationist professor Jiang Nanxiang once said：Course teaching materials construction, Staff Building, instruments used for education equipment structure
The three big foundation stones educated into us, three are indispensable, it can be seen that, instruments used for education are equipped in teaching process importantly
Position, this is because, first, instruments used for education equipment be education material base and technical guarantee；Secondth, instruments used for education, which are equipped, is
Teaching idea and the material carrier of the content of courses；3rd, instruments used for education equipment is transformation student learning way, improves student's science
The effective means of attainment；4th, instruments used for education equipment is to implement in full indispensable important ring in quality-oriented education whole system
Section.
Phenomena such as having occurred many teaching demonstration devices now, demonstrated various physical chemistry, for example demonstrate electromagnetism
It is induction, demonstration parabolic curve phenomenon, also demonstrate chemical dissolution phenomenon etc..Such as electromagnetic induction demonstration
Instrument (200820145896.2), the patent provide " a kind of intuitive is strong, interesting dense electromagnetic induction demonstration instrument, equipped with base,
Circuit occurs for arc-shaped guide rail, rolling member and electromagnetic field；Arc-shaped guide rail is fixedly arranged on base, rolling member be arranged on arc-shaped guide rail on and with
Arc-shaped guide rail, which rolls, to be coordinated, and rolling member is equipped with magnet, and electromagnetic field occurs circuit and is arranged in base.Can be as the supporting of teaching material
Demonstration instrument, when demonstration, are very directly perceived, very dynamic." and for example, weightless demonstration device, (200620142407.9), which discloses
" a kind of weightless demonstration device of teaching experiment, it is mainly by shell and base, rosette, circle metal plate, the bullet of round vase shape
Spring, metal derby, guide rod, support plate, battery pack, light bulb, cry ring device and switch composition, circle metal plate, guide rod, rosette, gold
Belong to block, adjustment axis, light bulb, switch, cry ring device and battery pack form a closed circuit, when static then light bulb shine, cry ring device hair
Sound, when whole device is in state of weightlessness without initial velocity release in the air, weight will diminish sheet metal pressure, and spring is stretched
Long, two metal sheets disengage, and circuit disconnects, and acousto-optic stops.Teaching demonstration of the present invention is intuitive and easy to understand, can deepen student to weightlessness
Phenomenon is further understood.”
At seven grades《Mathematics》The first volume《Point-line-surface body》In this section, occur complicated geometric figure by point,
Line, face and body are formed.But due to relatively more abstract, we are difficult to understand for.Particularly point and the position relationship of straight line, then to line with
Position relationship between line, then to the position relationship between straight line and plane, and plane and plane, point is on straight line, point exists
Straight line is outer, 2 points determine straight line, line line is parallel, line line intersects, and is parallel to each other parallel to two straight lines of same straight line；
If 2 points on straight line, in a plane, all the points are in this plane on this straight line.Teacher is illustrated by way of example
Bright, we often lack actual embodiment and are difficult to understand for.As pen writes (the point is moved into a line), windshield wiper swipes in fan-shaped that (line is moved into
Face), it is in cylinder (moving adult in face) that a rectangle scraps of paper are rotated using one side as axis, and no modern science and technology sense is difficult to the note for attracting us
Anticipate power, why we usually go to ask a little moves up into line, what relation the persistence of vision of this and people have.
Therefore, it is badly in need of a kind of the auxiliary of relation for being used to aid in student image to recognize between geometric figure and point, line, surface and body
Help educational aid.
The content of the invention
In view of this, the embodiment of the present invention provides one kind and is based on rotating LED point-line-surface body demonstration instrument for teaching, to realize auxiliary
Student image recognizes the relation between geometric figure and point, line, surface and body.
To achieve the above object, the embodiment of the present invention provides following technical solution：
One kind is based on rotating LED point-line-surface body demonstration instrument for teaching, including：
Pedestal；
The driving motor being fixed on above pedestal；
Fixed disc, the center of circle of the fixed disc are fixed in the drive shaft of the driving motor；
LED rotation demonstration apparatus is fixed on the fixed disc；
The rotation demonstration apparatus includes：
Power module；
The electric rotating machine being connected with power module；
It is fixed on the main shaft of the electric rotating machine, follows the display of the main axis of the electric rotating machine；
Controller, for controlling the rotating speed of electric rotating machine and the dispaly state of display.
Preferably, it is above-mentioned to be based on rotating LED point-line-surface body demonstration instrument for teaching, further include：
The alarm device being connected with the controller；
The main controller is additionally operable to detect the rotating speed of the electric rotating machine, when the rotating speed for detecting the electric rotating machine is less than
During preset rotation speed value, control alarm device work；
The preset rotation speed value is the tachometer value of the persistence of vision of human eye.
Preferably, it is above-mentioned to be based on rotating LED point-line-surface body demonstration instrument for teaching, further include：
Solar power supply unit and energy storage device；
The solar energy storage equipment is connected with the energy storage device, for being stored after converting solar energy into electric energy to institute
State in energy storage device, stand-by power supply of the energy storage device as the demonstration instrument for teaching.
Preferably, above-mentioned to be based on rotating LED point-line-surface body demonstration instrument for teaching, the controller is provided with multiple buttons and opens
Close, the controller is specifically used for when controlling the dispaly state of display：The triggering state of each key switch is detected, when
When detecting that some key switch is triggered, control display generation with it is pre- corresponding to the key switch that is triggered
If figure.
Preferably, above-mentioned to be based on rotating LED point-line-surface body demonstration instrument for teaching, the display is specifically used for：Respond infrared
The infrared signal of line transmitting equipment output, the display content according to infrared signal control display are multiple what is prestored
Switched between figure.
Preferably, it is above-mentioned to be based on rotating LED point-line-surface body demonstration instrument for teaching, further include：
Tongue tube detection unit and electromagnet；
The tongue tube detection unit is fixed on the display, and the electromagnet is arranged on to be detected with the tongue tube
The corresponding position of unit, the tongue tube detection unit detect the rotating speed of the display by being engaged with the electromagnet
Value, the tachometer value is sent to the controller；
The controller is additionally operable to：Tachometer value based on tongue tube detection unit transmission is with preset rotation speed value to described
Electric rotating machine carries out closed loop adjusting so that the tachometer value of the tongue tube detection unit output is preset rotation speed value；
The preset rotation speed value is the tachometer value of the persistence of vision of human eye.
Preferably, above-mentioned to be based on rotating LED point-line-surface body demonstration instrument for teaching, the tongue tube detection unit is additionally operable to pass through
It is engaged whether the detection display shakes with the electromagnet, if so, being used to characterize to controller output
The control signal that display rocks；
The controller is additionally operable to：When detecting the control signal that characterization display rocks, control alarm device output is used
In the standby signal that characterization display rocks, and it is stopped described in control based on rotating LED point-line-surface body demonstration instrument for teaching.
Preferably, the present apparatus additionally uses the control model that display screen picture automatically continuously switches, and the controller is also used
In：
Display content according to preset rules automatic switchover display.Also by the time moved to rotation demonstration apparatus, away from
From the setting with speed so that in the case where IR remote controller is not required, all pictures of completion that can automatically continuously are shown
Show.
Preferably, it is above-mentioned to be based on rotating LED point-line-surface body demonstration instrument for teaching, further include：
Display holder, the display holder are frame-shaped construction, and the display holder is fixed on the rotation
On rotating motor, the free end of the main shaft of the electric rotating machine is fixed on the inside top of the display holder, the rotation
The main shaft of motor is free to rotate；
The magnet is fixed in the display holder.
Based on above-mentioned technical proposal, such scheme provided in an embodiment of the present invention, user can be set beforehand through controller
The display content of the display so that the display shows point, line or face, then by described in controller control
Electric rotating machine drives the display quick rotation, so that point, line or the face on display follow display quick rotation,
And then it is presented that the point is moved into a line, line move into face, the effect of adult is moved in face so that student can move into face, face and move to the point is moved into a line, line
Adult, which exists, intuitively to be recognized.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 structure diagrams based on rotating LED point-line-surface body demonstration instrument for teaching disclosed in the embodiment of the present application.
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.
The above problem is directed to, is imparted knowledge to students this application discloses a kind of for aided education based on rotating LED point-line-surface body
Demonstrator, referring to Fig. 1, it includes：
One kind is based on rotating LED point-line-surface body demonstration instrument for teaching, it is characterised in that including：
Pedestal 1；
The driving motor 2 of the top of pedestal 1 is fixed on, which is specifically as follows direct-drive motor；
Fixed disc 3, the center of circle of the fixed disc 3 are fixed in the drive shaft of the driving motor 2, the drive shaft
The main shaft of as described direct-drive motor, when the drive shaft turns of the driving motor 2, drives 3 turns of the fixed disc
Dynamic, its material can be wooden；
The LED rotation demonstration apparatus being fixed on the fixed disc 3, the rotating LED demonstration device can be fixed on described solid
Near the circumference of fixed disk, the fixed disc diameter can be in 50cm or so；
The rotation demonstration apparatus includes：
Power module 4；
The electric rotating machine 5 being connected with power module 4；
The display 6 of the main axis of the electric rotating machine 5 is fixed on the main shaft of the electric rotating machine 5, follows, it is described
Display 6 (part come for enclosed with dashed lines in figure) is used for according to user's operation showing display contents, specifically, the display
Can be LED dot matrix screens；
Controller 7, is placed in the back side of display, for controlling the rotating speed of electric rotating machine 5 and the display shape of display 6
State, specifically, the controller 7 can be responsible for control, a piece of responsible control electric rotating by two panels Atmega328p chips respectively
The rotating speed of machine, another dispaly state for being responsible for control display.
When using rotating LED point-line-surface body demonstration instrument for teaching aided education is based on disclosed in the embodiment of the present application, user
The display content of the display can be set beforehand through controller so that the display shows point, line or face, then logical
Crossing the controller controls the electric rotating machine to drive the display quick rotation so that point, line on display or
Face follows display quick rotation, so the point is moved into a line is presented, line moves into face, the effect of adult is moved in face so that student can be right
The point is moved into a line, line move into face, face is moved adult presence and intuitively recognized.
The type of the display can be according to user demand sets itself, as long as ensureing that it can be shown for required
Point, face, the schematic construction of line, for example, it can be mobile phone, tablet computer, LED display etc..
In technical solution disclosed in the embodiment of the present application, in order to realize that the point is moved into a line, line move into face, adult is moved in face, body
The display effect of the three-dimensional Chinese character of a circle or figure is moved into, technology can be aobvious by controlling in putting disclosed in the embodiment of the present application
Show being pivoted for device, in conjunction with the persistence of vision principle of human eye, to control the dispaly state of the display, specifically, on
State in method, the controller is specifically used for controlling the electric rotating machine corresponding pre- to stop principle not less than the vision of human body
If rotating speed is rotated, in order to keep the rotary speed of display described in rotary course be always held at the preset rotation speed with
On, it can also include in such scheme：
The alarm device being connected with the controller；
In technical solution disclosed in the present embodiment, the main controller is additionally operable to detect the rotating speed of the electric rotating machine, when
When detecting that the rotating speed of the electric rotating machine is less than preset rotation speed value, control alarm device work, to prompt user by controlling
The rotating speed that controller improves the electric rotating machine is stated, so that the rotating speed of the electric rotating machine is higher than the rotating speed that human visual stops
Value；
Wherein, tachometer value of the preset rotation speed value not less than the persistence of vision of human eye.
The alarm device can be buzzer, when the rotating speed of electric rotating machine is less than the persistence of vision speed of human eye, controller
Control buzzer warning.Certainly, the buzzer can also be active buzzer, its main feature is that concussion source is carried, as long as so
One, which is powered, will sound.
In technical solution disclosed in the embodiment of the present application, since the present invention is to the particular/special requirement of power supply, in order to enable should
Instrument reaches the stable state of the beautiful and corresponding effect of design, can be powered with electric device using coupling coil module,
The module is made of major and minor two coils, is wirelessly transferred electric energy based on transformer coupled principle.
Further, in technical solution disclosed in the embodiment of the present application, temperature collection circuit can also be designed with, is passed through
The temperature collection circuit is used for the temperature value for gathering the drive circuit of current environment or electric rotating machine, and passes through the display
Show the temperature value, the temperature collection circuit can be realized by DS18B20 chips, the low temperature of DS18B20 chip internals
Index oscillation device can produce stable frequency signal, and high-temperature coefficient oscillator dut temperature is converted into frequency signal, works as counting
DS18B20 is counted when door is opened, and counting door service time is determined by high-temperature coefficient oscillator.Chip internal also has slope
Accumulator, can be compensated the nonlinearity of frequency.
In actual use, above-mentioned instrument can be powered by power grid, at this time by power grid Lai 220V cities electric wire pass through one
Transformer is reduced to 12V alternating currents, which is changed into smooth by diode bridge rectifier circuit and filter circuit
Direct current, then by two linear LDO voltage stabilizings to 3.3V and 10V be supplied respectively to control driving motor Atmega328p and institute
The drive circuit for stating driving motor uses, and another portion is sent to coupling coil, and the negative winding of coupling coil is according to transformer coupled
Principle obtains electric energy, is then changed into smooth direct current by diode bridge rectifier circuit and filter circuit, then passes through one
Linearly
To 3.3V, supply controls the Atmega328p of display and display to use for LDO voltage stabilizings.
In technical solution disclosed in the embodiment of the present application, each of above-mentioned instrument can use power grid to supply with electric device
Electricity, certainly, it is contemplated that connection alternating current may be not easy in site environment, therefore, above device can use self-powered progress
Power supply a, i.e. energy storage device can also be included in above device, the energy storage device is used for being provided with electric device into instrument
Electric energy, the energy-storage module can be charged by charger, naturally it is also possible to it be powered by solar power supply unit,
At this time, the solar energy storage equipment is connected with the energy storage device, for storage after converting solar energy into electric energy described in
In energy storage device, stand-by power supply of the energy storage device as the demonstration instrument for teaching.The solar cell full of
The electric rotating machine, electric rotating machine and coupling coil power supply can be given in the case of electricity at the same time.For above-mentioned solar cell
Used conversion regime is the direct conversion regime of optical-electronic, solar energy can be directly changed into electric energy.
In technical solution disclosed in the embodiment of the present application, a clock module can also be included, since the system is to body
Product and weight have very high requirement, and the geometric center that the whole system surfaces of revolution is required when high speed rotates is with mass centre
Same point, otherwise will produce violent shake, influence system normal operation.Especially when the quality of display is bigger, to system
The requirement of physical stability is higher, and rotating speed is directly proportional to quality, and excessive quality influences rotating speed so as to further influence display
Effect, so using small volume, light-weight patch DS1302 in the selection of chip, and can show over the display in real time
Show the current time.
In technical solution disclosed in the embodiment of the present application, the controller is controlled in the dispaly state to display
When, it can be controlled and can also be controlled by the way of wireless control by the way of contact controls, specifically, being directed to
In firing control：The controller is provided with multiple key switches, dispaly state of the controller in control display
When, it is specifically used for：The triggering state of each key switch is detected, when detecting that some key switch is triggered, described in control
The preset pattern corresponding to the key switch that display generates and is triggered.It is directed to wireless control mode：The display
Implement body is used for：The infrared signal of infrared emitting equipment output is responded, according to infrared signal control display
Display content switches between the multiple figures to prestore.
The temperature of controller is excessive in order to prevent, and heat sink is also provided with such scheme, and the heat sink is consolidated
It is scheduled on to radiate for the chip to controller and surrounding and single channel around controller, prevented that cause thermal damage was first to play
The effect of device.
Further, the rotating speed of electric rotating machine is too low in order to prevent, and above-mentioned kind together is also provided with the unit that tests the speed, institute
State the unit that tests the speed be utilize Hall sensor with for controlling the Atmega328p chips of electric rotating machine rotating speed to connect.Specifically,
The measuring method of M/T, a kind of rotary unit for being used to gather electric rotating machine rotating speed of design can be used, and passes through display reality
When show the rotary speed of motor, different rotating speeds are shown on LED display by the PWM ripples for exporting different duty, the rotation
The Digital Detecting basic skills for turning equipment velocity of rotation is the output using the Hall revolution speed transducer coaxially connected with the equipment
The pulse frequency principle directly proportional to rotating speed, the impulse speed and sequence sent according to impulse generator, the rotating speed of measurement motor
With its rotation direction of differentiation.
The application can also measure the rotating speed of display screen by another way, specifically, in such scheme, can also wrap
Include：
Tongue tube detection unit 8 and electromagnet 9；
The tongue tube is placed in the back side of display, is fixed on the display for detection unit, the electromagnetism
Iron be arranged on the corresponding position of tongue tube detection unit, the tongue tube detection unit by with the electromagnetism iron phase
Coordinate the tachometer value for detecting the display, the tachometer value is sent to the controller；
The controller is additionally operable to：Tachometer value based on tongue tube detection unit transmission is with preset rotation speed value to described
Electric rotating machine carries out closed loop adjusting so that the tachometer value of the tongue tube detection unit output is preset rotation speed value；
The preset rotation speed value is the tachometer value of the persistence of vision of human eye.
Specifically, the tongue tube detection unit, the lower right corner of display can be fixed on, by consolidating with lower position
Fixed electromagnet interacts to detect and adjust the motion state and location status of display.In existing scheme, tongue tube is again
Magnetron is, is a kind of switch element using magnetic field signal to control, no magnetic disconnects, and can be used for detection circuit or machinery fortune
Dynamic state, is 10mm or so generally with electromagnet operating distance, based on specific visual engineering practice, can make its operating distance as most
Big L, when the actual range of tongue tube and electromagnet can be set to l, as l ＜ L, dry-reed tube switch closure, display, which enters, to be started
Rotation status.When display is in rotation status, can be detected by tongue tube in period of time T, tongue tube is detected
Switch conduction times N, conducting number here is exactly the number of revolutions of display.Display so can be calculated by formula
Rotary speed of the device within the unit interval：V=N/T, the electric rotating machine are ordinarily selected to direct current generator, the rotating speed of direct current generator
Formula is v=(U-2 Δs Us-IaRa)/(CeΦ), wherein, v is preset rotation speed, and U is motor terminal voltage, Δ UsFor brush pressure drop,
IaFor armature supply, RaFor armature winding resistance, CeFor constant of the machine, Φ is motor gas-gap magnetic flux.One can be set in advance
Constant rotating speed v, when rotary speed V ＜ v are calculated by tongue tube, can increase the electric rotating machine by controller
The voltage U at both ends, to reach the raising rotary speed V and then reach preset rotation speed v, as V ＞ v, can pass through control
Device processed reduces U, and to reach preset value, tongue tube closed loop detection mode in this way, can keep the movement shapes of LED dot matrix screens
State, which is in, to be stablized.
Outside rotating speed except through tongue tube detection unit control display, tongue tube detection unit can also lead to
Cross and be engaged whether the detection display shakes in rotation process with the electromagnet, if so, to the control
Device output is used to characterize the control signal that display rocks；
The controller is additionally operable to：When detecting the control signal that characterization display rocks, control alarm device output is used
In the standby signal that characterization display rocks, and it is stopped described in control based on rotating LED point-line-surface body demonstration instrument for teaching.
It can be further expressed as follows for the automatic continuous image switching of LED dot matrix screens, its specific operating procedure：
The fixed diameter of the fixed disc is known, can make a diameter of D, i.e. circumference is π D, electric when starting driving
Machine and when driving the fixed disc to rotate, figure and Chinese character on LED rotation demonstration apparatus with fixed speed V fixed disc circle
Moved on week, thus can calculate the time t that moves one week of each figure on display and Chinese character is (π D)/V, therefore can control
The time of each figure and Chinese character movement is set in processing procedure sequence as t, when the mobile time reaching t, controller control is shown
The solid figure and Chinese character shown disappear, and allow new solid figure and chinese disply and movement.So as to reach all figures and the Chinese
Word automatically continuously switches the purpose of display.In the present solution, add the control model that LED dot matrix screen pictures automatically continuously switch.
The time moved by controller to rotation demonstration apparatus, the setting of distance, speed and display type.So that the picture of LED dot matrix screens
Face can be shown in automatic continuous switching in the case of remote controler is not required.
Further, in order to fix the display, can also include in such scheme：
Display holder 10, the display holder are frame-shaped construction, and the display holder is fixed on described
On electric rotating machine, the free end of the main shaft of the electric rotating machine is fixed on the inside top of the display holder, the rotation
The main shaft of rotating motor is free to rotate；
The magnet is fixed in the display holder.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for system or
For system embodiment, since it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method
The part explanation of embodiment.System and system embodiment described above is only schematical, wherein the conduct
The unit that separating component illustrates may or may not be it is physically separate, can be as the component that unit is shown or
Person may not be physical location, you can with positioned at a place, or can also be distributed in multiple network unit.Can root
Factually border needs to select some or all of module therein realize the purpose of this embodiment scheme.Ordinary skill
Personnel are without creative efforts, you can to understand and implement.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (9)
1. one kind is based on rotating LED point-line-surface body demonstration instrument for teaching, it is characterised in that including：
Pedestal；
The driving motor being fixed on above pedestal；
Fixed disc, the center of circle of the fixed disc are fixed in the drive shaft of the driving motor；
LED rotation demonstration apparatus is fixed on the fixed disc；
The LED rotation demonstration apparatus includes：
Power module；
The electric rotating machine being connected with power module；
It is fixed on the main shaft of the electric rotating machine, follows the display of the main axis of the electric rotating machine；
Controller, for controlling the rotating speed of electric rotating machine and the dispaly state of display.
2. according to claim 1 be based on rotating LED point-line-surface body demonstration instrument for teaching, it is characterised in that further includes：
The alarm device being connected with the controller；
The controller is additionally operable to detect the rotating speed of the electric rotating machine, is preset when the rotating speed for detecting the electric rotating machine is less than
During tachometer value, control alarm device work；
The preset rotation speed value is the tachometer value of the persistence of vision of human eye.
3. according to claim 1 be based on rotating LED point-line-surface body demonstration instrument for teaching, it is characterised in that further includes：
Solar power supply unit and energy storage device；
The solar power supply unit is connected with the energy storage device, and the storage is arrived for storage after converting solar energy into electric energy
In energy equipment, stand-by power supply of the energy storage device as the LED rotation demonstrating devices.
4. according to claim 1 be based on rotating LED point-line-surface body demonstration instrument for teaching, it is characterised in that the controller
Multiple key switches are provided with, the controller is specifically used for when controlling the dispaly state of display：Each button is detected to open
The triggering state of pass, when detecting that some key switch is triggered, control display generation be triggered it is described by
Preset pattern corresponding to key switch.
5. according to claim 1 be based on rotating LED point-line-surface body demonstration instrument for teaching, it is characterised in that the display
It is specifically used for：The infrared signal of infrared emitting equipment output is responded, according to the aobvious of infrared signal control display
Show that content switches between the multiple figures to prestore.
6. according to claim 1 be based on rotating LED point-line-surface body demonstration instrument for teaching, it is characterised in that further includes：
Tongue tube detection unit and electromagnet；
The tongue tube detection unit is fixed on the display, and the electromagnet is arranged on and the tongue tube detection unit
Corresponding position, the tongue tube detection unit detect the tachometer value of the display by being engaged with the electromagnet,
The tachometer value is sent to the controller；
The controller is additionally operable to：Based on the tachometer value that the tongue tube detection unit is sent with preset rotation speed value to the rotation
Motor carries out closed loop adjusting so that the tachometer value of the tongue tube detection unit output is preset rotation speed value；
The preset rotation speed value is the tachometer value of the persistence of vision of human eye.
7. according to claim 6 be based on rotating LED point-line-surface body demonstration instrument for teaching, it is characterised in that the tongue tube
Detection unit is additionally operable to by being engaged whether the detection display shakes with the electromagnet, if so, to described
Controller output is used to characterize the control signal that display rocks；
The controller is additionally operable to：When detecting the control signal that characterization display rocks, control alarm device output is used for table
The standby signal that sign display rocks, and be stopped described in control based on rotating LED point-line-surface body demonstration instrument for teaching.
8. according to claim 6 be based on rotating LED point-line-surface body demonstration instrument for teaching, it is characterised in that further includes：
Display holder, the display holder are frame-shaped construction, and the display holder is fixed on the electric rotating
On machine, the free end of the main shaft of the electric rotating machine is fixed on the inside top of the display holder, the electric rotating machine
Main shaft it is free to rotate；
The electromagnet is fixed in the display holder.
9. according to claims 6 based on rotating LED point-line-surface body demonstration instrument for teaching, it is characterised in that the control
Device is additionally operable to：
Display content according to preset rules automatic switchover display.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810055207.7A CN107993494A (en) | 2018-01-19 | 2018-01-19 | One kind is based on rotating LED point-line-surface body demonstration instrument for teaching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810055207.7A CN107993494A (en) | 2018-01-19 | 2018-01-19 | One kind is based on rotating LED point-line-surface body demonstration instrument for teaching |
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| CN107993494A true CN107993494A (en) | 2018-05-04 |
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| JP2010085387A (en) * | 2008-09-08 | 2010-04-15 | Utsunomiya Univ | Visual dynamic display device, visual dynamic science text, and science toy |
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| CN201955963U (en) * | 2011-01-28 | 2011-08-31 | 湖州师范学院 | Vision persistence effect demonstrating instrument |
| CN203659363U (en) * | 2013-11-28 | 2014-06-18 | 施耐德电器工业公司 | Signal device |
| CN104575283A (en) * | 2013-10-10 | 2015-04-29 | 江阴迈德机械有限公司 | Rotation three-dimensional displayer |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010085387A (en) * | 2008-09-08 | 2010-04-15 | Utsunomiya Univ | Visual dynamic display device, visual dynamic science text, and science toy |
| CN201955963U (en) * | 2011-01-28 | 2011-08-31 | 湖州师范学院 | Vision persistence effect demonstrating instrument |
| CN102157097A (en) * | 2011-04-01 | 2011-08-17 | 安徽省科普产品工程研究中心有限责任公司 | Teaching demonstrating device for demonstrating relationship among point, line and plane |
| CN104575283A (en) * | 2013-10-10 | 2015-04-29 | 江阴迈德机械有限公司 | Rotation three-dimensional displayer |
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Application publication date: 20180504 |