CN107967851A - A kind of SCM Experimentation Teaching system - Google Patents
A kind of SCM Experimentation Teaching system Download PDFInfo
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- CN107967851A CN107967851A CN201711394705.6A CN201711394705A CN107967851A CN 107967851 A CN107967851 A CN 107967851A CN 201711394705 A CN201711394705 A CN 201711394705A CN 107967851 A CN107967851 A CN 107967851A
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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
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
- G09B23/186—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits for digital electronics; for computers, e.g. microprocessors
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Abstract
The present invention provides a kind of SCM Experimentation Teaching system, supporting rack, singlechip control panel, pipe, power device, first sensor, second sensor and 3rd sensor are included；Support frame as described above is in integrally inverted T-shaped structure, and the rectangle riser being vertically arranged in the middle part of T-shaped structure, some mounting holes are equipped with the upper end of riser；Singlechip control panel is fixed on the installation bore region of riser；One end of the pipe is removably connected with shaft, and shaft socket bearing is simultaneously inlaid in the downside of riser, and the length direction of shaft is vertical with riser plane, and pipe rotates around the axis；The length of the pipe is less than the length of rectangle riser；Beneficial effects of the present invention for can fast construction simulated experiment scene, facilitate function to show, by the single teaching of book knowledge to solving practical problems change, improve analysis and process problem ability.
Description
Technical field
The present invention relates to teaching facilities field, and in particular to a kind of SCM Experimentation Teaching system.
Background technology
Existing single chip computer teaching is usually started with from books, is made of microcontroller framework, programmed instruction etc. progressively deeply into
OK, involved teaching equipment is mainly single-chip minimum system plate made of microcontroller and interface peripherals hardware, its function exhibition
Show and realized usually using emitting led or liquid crystal display combination key-press input, classmates is easily only focused on SCM program instruction
And single-chip minimum system is in itself, and lack the contact of the practical problem solved to SCM system；For existing microcontroller
The problem of teaching presence：On the one hand it is the function for the embodiment microcontroller for being unable to quicklook, the study for improving classmates is emerging
Interest；On the other hand, classmates is formed the custom for relying on the ready-made commercial product such as sensor, be unfavorable for classmates and establish conjunction
Reason is seen using the method for SCM system solving practical problems, is also unfavorable for the modeling study of high-order；In order to solve the problems, such as these,
It is necessary to be furtherd investigate.
The content of the invention
For the deficiency in the presence of the prior art, the present invention provides a kind of function displaying easy to microcontroller, it is beneficial to
Model the SCM system teaching support of study.
To achieve the above object, present invention employs following technical solution：
A kind of SCM Experimentation Teaching system, includes supporting rack, singlechip control panel, pipe, power device, the first sensing
Device, second sensor and 3rd sensor；
Support frame as described above is in integrally inverted T-shaped structure, and the rectangle riser being vertically arranged in the middle part of T-shaped structure, is standing
The upper end of plate is equipped with some mounting holes；Singlechip control panel is fixed on the installation bore region of riser；One end of the pipe is removable
Unload and be connected with shaft, shaft socket bearing is simultaneously inlaid in the downside of riser, and the length direction of shaft is vertical with riser plane, pipe
Rotate around the axis；The length of the pipe is less than the length of rectangle riser；First is respectively equipped with along its length on pipe to insert
Hole and the second jack, wherein the first jack is plugged with first sensor, the second jack is plugged with second sensor；
The singlechip control panel includes microcontroller, analog-to-digital conversion module, linear amplifier circuit, first sensor connection
End, second sensor connecting pin, 3rd sensor connecting pin, digital comparator, touch display module, drive module, power device
Part connecting pin, for show 3rd sensor sensing numerical value change indicating lamp module and for setting numerical value benchmark
The dial-up selecting module of size；
Wherein, the output of 3rd sensor inputs, linearly with analog-to-digital conversion module respectively through 3rd sensor connecting pin
The input of amplifying circuit and the input of microcontroller are connected；The output of analog-to-digital conversion module, the output difference of dial-up selecting module
Correspondence is connected with the input of digital comparator, and the output of digital comparator is connected with the input of microcontroller；Linear amplifier circuit
Output is connected with the triggering end of indicating lamp module, and the feeder ear of indicating lamp module is connected with the output of microcontroller；First sensor
It is connected through first sensor connecting pin with the input of microcontroller；Connecting pin and microcontroller of the second sensor through second sensor
Input is connected；Touch display module is connected with microcontroller；The output phase of the power device through power device connecting pin and drive module
Even, the input of drive module is connected with the output of microcontroller.
The present invention is shown as function in use, utilizing the fixed singlechip control panel of mounting hole installation on riser, stepping
Motor or steering engine, to drive pipe to be rotated according to single chip system board setup parameter, monolithic is shown by the motion morphology of pipe
Accurate control of the machine to motor；Multiple single chip system boards are fixed on riser, facilitate observation of students, also allow for connecing for microcontroller
The dynamic experiments such as mouth peripheral hardware, interaction display, serial communication, sensor connection, algorithm effect displaying；In modeling, can combine auxiliary
Help experiment equipment, such as reflective photoelectric sensor be inlaid at pipe jack inner wall, from pipe distal end place bead make its by
Rolled down in pipe, bead speed is calculated by the acquisition time interval of two reflective photoelectric sensors, with reference to component of acceleration
Calculate the angle for obtaining pipe and horizontal plane.
Compared with the prior art, the present invention has the advantages that：Easy to inserting for single chip system board and experimental provision
Connect, can fast construction simulated experiment scene, both facilitated function to show, also by the single teaching of book knowledge to solving practical problems
Transformation, improves the ability of analysis and process problem.
Brief description of the drawings
Fig. 1 is the structure diagram of supporting rack in embodiment.
Fig. 2 is the structure diagram of embodiment transfer axis connection.
Fig. 3 is singlechip control panel principle logic diagram in embodiment.
Fig. 4 is the principle logic diagram of indicating lamp module in embodiment.
Fig. 5 is the principle logic diagram of dial-up selecting module in embodiment.
Embodiment
The technical solution in the present invention is further illustrated with reference to the accompanying drawings and embodiments.
A kind of SCM Experimentation Teaching system, includes supporting rack, singlechip control panel, pipe, power device, the first sensing
Device, second sensor and 3rd sensor；Wherein, supporting rack is as shown in Figure 1：Include base 1；The base 1 is overall in inversion
T-shaped structure, in order to the firm placement of whole stent；The rectangle riser 3 being vertically arranged in the middle part of T-shaped structure；In riser 3
Upper end be equipped with some mounting holes 4, the mounting hole 4 includes threaded hole, you can realize experimental provision external bolt and nut connect
Fixed or experiment equipment threaded connection is connect, can also realize and connect and fix, convenient installation；One end of the pipe 2 detachably connects
Shaft is connected to, as shown in Figure 1 and Figure 2, shaft 7 is socketed bearing 6 and is inlaid in the downside of riser 3, and the length direction of shaft 7 is with standing
3 plane of plate is vertical, and pipe 27 rotates around the shaft；One end of shaft 7 is fixed with socket pipe 5, internal diameter and the pipe 2 of socket pipe 5
Outside diameter matches, so that 2 interference of pipe is plugged in socket pipe 5, both facilitates dismounting and change, can also keep shaft 7 to drive pipe 2 low
Speed rotates；The one end of shaft 7 away from pipe 2 also axis connection has gear 8, when stepper motor or other motors are placed in base 1
After being inverted the horizontal segment of T-shaped structure, by gear engagement system shaft can be driven to rotate, on the one hand simplify drive connection knot
Structure, on the other hand, motor and pipe contribute to the stabilization of stent in the both sides of riser 3；The length of the pipe 2 is less than rectangle
The length and width of riser 3, easy to rotation of the pipe 2 in 3 region of riser, and increase by 2 end of pipe angle directed downwardly, with side
Just the measure of acceleration and amendment；It is additionally provided with two jacks 9 along its length on pipe 2, includes the first sensing of grafting installation
The second jack of second sensor is installed in first jack of device, grafting；Tested by first sensor, second sensor in bead
Or the triggering sensing data of bead is obtained during modeling simultaneously and then calculates the movement velocity of bead；It is equipped with 3 surface of riser with shaft
For origin, riser width (is not drawn for the angle index of transverse axis and/or along the length scale of angle index direction setting in figure
Go out), with parameters such as reading angular, distances, and calculate income value with singlechip control panel and calculated；It can also realize ranging reality
Test, with the sensing solutions precision of test design.
The base 1 is additionally provided with baffle 11；The baffle is located at the side inferior horn of riser 3, opposite with shaft 7 and pipe 2；Gear
One end of plate 11 and 1 bottom connection of base；Horizontal stripe 12 is additionally provided with by 11 edge of baffle in 1 bottom of base, to extend baffle 11
Track, limits the direction of motion of bead；The horizontal segment of T-shaped structure is inverted in base 1 and riser 3 is additionally provided with triangle connecting plate
10, the stability of stent had not only been improved, but also the bead fallen is limited in 1 horizontal segment of base, easy to take；The baffle 11 leans on
The horizontal segment that shaft side and/or base are inverted T-shaped structure is further fixed on magnetic rubber piece, on the one hand, is tested in bead from circle
After 2 distal end of pipe is put into, impact force of the bead to baffle 11 can be buffered, on the other hand, magnetic rubber piece can attract fixed band
There are the light-weight articles of irony, such as mirror, the experiment such as laser ranging, laser communication can be completed, enrich the side of functional experiment
Method.
The singlechip control panel includes microcontroller, analog-to-digital conversion module, linear amplifier circuit, first sensor connection
End, second sensor connecting pin, 3rd sensor connecting pin, digital comparator, touch display module, drive module, power device
Part connecting pin, for show 3rd sensor sensing numerical value change indicating lamp module and for setting numerical value benchmark
The dial-up selecting module of size；Can be square by first sensor connecting pin, second sensor connecting pin, 3rd sensor connecting pin
Just the replacement of sensor is realized；The power device includes motor, water pump or heating wire, and wherein motor includes stepper motor or rudder
Machine.
As shown in figure 3, the output of 3rd sensor through 3rd sensor connecting pin respectively the input with analog-to-digital conversion module,
The input of linear amplifier circuit and the input of microcontroller are connected；Output, the output of dial-up selecting module of analog-to-digital conversion module
Correspondence is connected with the input of digital comparator respectively, and the output of digital comparator is connected with the input of microcontroller；Linear Amplifer electricity
The output on road is connected with the triggering end of indicating lamp module, and the feeder ear of indicating lamp module is connected with the output of microcontroller；First passes
Sensor is connected through first sensor connecting pin with the input of microcontroller；Connecting pin and monolithic of the second sensor through second sensor
The input of machine is connected；Touch display module is connected with microcontroller；Power device is defeated through power device connecting pin and drive module
Go out connected, the input of drive module is connected with the output of microcontroller.Multiple power device is conveniently replaceable by power device connecting pin
Part, is convenient for different experiments；The first sensor connecting pin, second sensor connecting pin, power device connecting pin are
Socket type terminals, in order to the quick connection of sensor and power device；The first sensor, second sensor and the 3rd
Sensor include Hall sensor, position sensor, range sensor, metal sensor, pH value sensor, temperature sensor,
One of which in humidity sensor.When progress bead tests the speed experiment, first sensor, second sensor selection photo-electric pass
When sensor, range sensor or position sensor, correspondence is plugged into two jacks 9, so as to obtain in bead experiment by pipe
The sensing trigger data rolled down；
Indicating lamp module can be used for the numerical value change of display 3rd sensor, this function can facilitate classmates more intuitively
It was observed that dynamic process；For example when acid-base value is tested, it is pH value sensor to select 3rd sensor, as test acid-base value；
As shown in figure 4, the indicating lamp module includes the first Light-emitting diode LED 1, the second Light-emitting diode LED 2, the first metal-oxide-semiconductor
Q1, the second metal-oxide-semiconductor Q2, the first current-limiting resistance R1 and the second current-limiting resistance R2；Wherein, the first Light-emitting diode LED 1, second is sent out
The indicator light that it is indicating pH value size in test acid-base value experiment that optical diode LED2, which is,；A wherein output terminal for microcontroller with
The anode of first Light-emitting diode LED 1 is connected, and the cathode of the first Light-emitting diode LED 1 is connected with the source electrode of the first metal-oxide-semiconductor Q1,
The drain electrode of first metal-oxide-semiconductor Q1 is connected to circuit reference ground terminal through the first current-limiting resistance R1；Another output terminal of microcontroller and the second hair
The anode of optical diode LED2 is connected, and the cathode of the second Light-emitting diode LED 2 is connected with the source electrode of the second metal-oxide-semiconductor Q2, and second
The drain electrode of metal-oxide-semiconductor Q2 is connected to circuit reference ground terminal through the second current-limiting resistance R2；The voltage swing signal that pH value sensor is passed back with
The size of pH value is linear positive correlation or the relevant contact of linear negative, carries out being converted to digital signal by analog-to-digital conversion module
Afterwards, compared with a reference value of dial-up selecting module setting, digital comparator is exported to microcontroller, by microcontroller according to output
As a result the output connecting pin of the first Light-emitting diode LED 1 or the second Light-emitting diode LED 2 is selected to correspond to output high level, so that
Realize that acidity, the differentiation judgement of basicity and indicator light switching are powered；PH value sensor is after linear amplifier circuit amplifies so that
Spacing between its voltage high level, voltage low value increases, so as to amplify voltage-controlled difference；The output terminal of linear amplifier circuit
The grid with the first metal-oxide-semiconductor Q1, the grid of the second metal-oxide-semiconductor Q1 are connected respectively, since metal-oxide-semiconductor is voltage-controlled device, work as grid voltage
During change, the equivalent resistance between its source electrode, drain electrode can change so that the first Light-emitting diode LED 1, second luminous two
The actual current-limiting resistance of pole pipe LED2 changes with the voltage output signal of pH value sensor, its brightness also changes therewith；From
And realize test pH value be acidity/basicity in the case of, the corresponding indicator light of acidity/basicity is lighted, and brightness with acidity/
Basicity pH value it is of different sizes and different；The exchange and fusion of weak acid/strong base liquid are controlled by water pump, or is added using dropper point
When strong acid, highly basic are neutralized, the adjusting change of acid-base value can be can be visually seen.3rd sensor selects other types sensor
When (it is voltage to pass signal back), indicating lamp module can also realize same state change.
The dial-up selecting module includes multidigit dial-up selecting switch and some current-limiting resistances；The quantity of current-limiting resistance with
The switch digit of multidigit dial-up selecting switch is identical；As shown in figure 5, multidigit dial-up selecting switch includes eight switches of K1-K8, limit
Leakage resistance is corresponding a RES1-RES8 eight, in multidigit dial-up selecting switch, one end of its either switch and singlechip control panel
Feeder ear VCC be connected, the other end is connected to the reference ground GND of singlechip control panel through current-limiting resistance；Current-limiting resistance is with opening
The connecting pin of pass connects one to one with the input terminal of digital comparator respectively.By when toggle switch K1 is closed, numeric ratio
Correspondence input terminal compared with device is high level, and when toggle switch is opened, toggle switch K1 corresponds to the input of connection digital comparator
Hold as low level, switch closure different adjustment K1-K8 so that the benchmark of digital comparator changes；When the 3rd biography
After sensor is replaced, after its voltage output maximum changes, it is necessary to adjust benchmark, adjusted by toggle switch scene
It is more more quick than microcontroller adjustment, help classmates to deepen the understanding to microcontroller also by digital circuit.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, can be to the skill of the present invention
Art scheme technical scheme is modified or replaced equivalently, without departing from the objective and scope of technical solution of the present invention, it should all cover at this
Among the right of invention.
Claims (9)
- A kind of 1. SCM Experimentation Teaching system, it is characterised in that：Include supporting rack, singlechip control panel, pipe, power device Part, first sensor, second sensor and 3rd sensor；Support frame as described above is in integrally inverted T-shaped structure, the rectangle riser being vertically arranged in the middle part of T-shaped structure, in riser Upper end is equipped with some mounting holes；Singlechip control panel is fixed on the installation bore region of riser；One end of the pipe detachably connects Shaft is connected to, shaft socket bearing is simultaneously inlaid in the downside of riser, and the length direction of shaft is vertical with riser plane, and pipe rotates Axis rotates；The length of the pipe is less than the length of rectangle riser；Be respectively equipped with along its length on pipe the first jack with Second jack, wherein the first jack is plugged with first sensor, the second jack is plugged with second sensor；The singlechip control panel includes microcontroller, analog-to-digital conversion module, linear amplifier circuit, first sensor connecting pin, the Two sensor connecting pins, 3rd sensor connecting pin, digital comparator, touch display module, drive module, power device connection Hold, for showing that 3rd sensor senses the indicating lamp module of numerical value change and for setting numerical value benchmark size Dial-up selecting module；Wherein, the output of 3rd sensor is through 3rd sensor the connecting pin input with analog-to-digital conversion module, Linear Amplifer respectively The input of circuit and the input of microcontroller are connected；Output, the output of dial-up selecting module of analog-to-digital conversion module correspond to respectively It is connected with the input of digital comparator, the output of digital comparator is connected with the input of microcontroller；The output of linear amplifier circuit It is connected with the triggering end of indicating lamp module, the feeder ear of indicating lamp module is connected with the output of microcontroller；First sensor is through One sensor connecting pin is connected with the input of microcontroller；The input of connecting pin and microcontroller of the second sensor through second sensor It is connected；Touch display module is connected with microcontroller；Power device is connected through power device connecting pin with the output of drive module, drives The input of dynamic model block is connected with the output of microcontroller.
- A kind of 2. SCM Experimentation Teaching system as claimed in claim 1, it is characterised in that：It is additionally provided with the side inferior horn of riser Baffle；The baffle is opposite with shaft and pipe.
- A kind of 3. SCM Experimentation Teaching system as claimed in claim 2, it is characterised in that：The baffle leans on shaft side also It is fixed with magnetic rubber piece.
- A kind of 4. SCM Experimentation Teaching system as claimed in claim 1, it is characterised in that：The mounting hole includes screw thread Hole.
- A kind of 5. SCM Experimentation Teaching system as claimed in claim 1, it is characterised in that：The shaft away from pipe one End also axis connection has gear.
- A kind of 6. SCM Experimentation Teaching system as claimed in claim 1, it is characterised in that：The power device includes electricity Machine, water pump or heating wire.
- A kind of 7. SCM Experimentation Teaching system as claimed in claim 1, it is characterised in that：The indicating lamp module includes the One light emitting diode, the second light emitting diode, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the first current-limiting resistance and the second current-limiting resistance；It is single A wherein output terminal for piece machine is connected with the anode of the first light emitting diode, the cathode of the first light emitting diode and the first metal-oxide-semiconductor Source electrode be connected, the drain electrode of the first metal-oxide-semiconductor is connected to circuit reference ground terminal through the first current-limiting resistance；Another output terminal of microcontroller with The anode of second light emitting diode is connected, and the cathode of the second light emitting diode is connected with the source electrode of the second metal-oxide-semiconductor, the second metal-oxide-semiconductor Drain electrode be connected to circuit reference ground terminal through the second current-limiting resistance；The output terminal of linear amplifier circuit grid with the first metal-oxide-semiconductor respectively Pole, the grid of the second metal-oxide-semiconductor are connected.
- A kind of 8. SCM Experimentation Teaching system as described in claim 1 or 7, it is characterised in that：The dial-up selecting module Include multidigit dial-up selecting switch and some current-limiting resistances；The quantity of current-limiting resistance and the switch position of multidigit dial-up selecting switch Number is identical；In multidigit dial-up selecting switch, one end of its either switch is connected with the feeder ear of singlechip control panel, other end warp Current-limiting resistance is connected to the reference ground of singlechip control panel；Current-limiting resistance with switch connecting pin respectively with digital comparator Input terminal connects one to one.
- A kind of 9. SCM Experimentation Teaching system as claimed in claim 1, it is characterised in that：The first sensor, second Sensor and 3rd sensor include Hall sensor, position sensor, range sensor, metal sensor, pH value sensor, One of which in temperature sensor, humidity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711394705.6A CN107967851B (en) | 2017-12-21 | 2017-12-21 | Singlechip experiment teaching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711394705.6A CN107967851B (en) | 2017-12-21 | 2017-12-21 | Singlechip experiment teaching system |
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| Publication Number | Publication Date |
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| CN107967851A true CN107967851A (en) | 2018-04-27 |
| CN107967851B CN107967851B (en) | 2021-02-09 |
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| CN201711394705.6A Active CN107967851B (en) | 2017-12-21 | 2017-12-21 | Singlechip experiment teaching system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2807857A1 (en) * | 2000-04-14 | 2001-10-19 | Jacky Jerome | Facility for teaching microcontrollers to students, comprises connections from measurement or synchronization points brought to edge of card which is insulated but accessible to measurement and test |
| KR100872893B1 (en) * | 2008-02-04 | 2008-12-10 | 장정우 | The actual training kit for exercising micro controler unit |
| CN102013191A (en) * | 2010-09-02 | 2011-04-13 | 东北师范大学 | Intelligent teaching aid used for operation system experiment teaching |
| CN202331907U (en) * | 2011-11-11 | 2012-07-11 | 北华航天工业学院 | Single chip microcomputer teaching experiment device |
| CN204029239U (en) * | 2014-07-29 | 2014-12-17 | 河海大学常州校区 | There is the singlechip experimental box of circuit state visualization function |
-
2017
- 2017-12-21 CN CN201711394705.6A patent/CN107967851B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2807857A1 (en) * | 2000-04-14 | 2001-10-19 | Jacky Jerome | Facility for teaching microcontrollers to students, comprises connections from measurement or synchronization points brought to edge of card which is insulated but accessible to measurement and test |
| KR100872893B1 (en) * | 2008-02-04 | 2008-12-10 | 장정우 | The actual training kit for exercising micro controler unit |
| CN102013191A (en) * | 2010-09-02 | 2011-04-13 | 东北师范大学 | Intelligent teaching aid used for operation system experiment teaching |
| CN202331907U (en) * | 2011-11-11 | 2012-07-11 | 北华航天工业学院 | Single chip microcomputer teaching experiment device |
| CN204029239U (en) * | 2014-07-29 | 2014-12-17 | 河海大学常州校区 | There is the singlechip experimental box of circuit state visualization function |
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| Publication number | Publication date |
|---|---|
| CN107967851B (en) | 2021-02-09 |
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