CN109300348A - Interactive educational system - Google Patents
Interactive educational system Download PDFInfo
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- CN109300348A CN109300348A CN201811386688.6A CN201811386688A CN109300348A CN 109300348 A CN109300348 A CN 109300348A CN 201811386688 A CN201811386688 A CN 201811386688A CN 109300348 A CN109300348 A CN 109300348A
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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
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
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- Business, Economics & Management (AREA)
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- Educational Administration (AREA)
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Abstract
The invention discloses a kind of interactive educational systems, including teacher's terminal and student terminal, teacher's terminal includes single-chip microcontroller, dais touching display screen, first data selecting module, monitoring camera, first wireless communication module, first data memory module, smoke sensor device, first audio processing modules, first video processing module and power module, student terminal includes microcontroller, microphone, unlocked by fingerprint module, second data selecting module, second wireless communication module, second data memory module, second audio processing modules, sound equipment and the second video processing module；The power module includes voltage input end, the first metal-oxide-semiconductor, the first triode, the first zener diode, first resistor, comparator, second resistance, 3rd resistor, first capacitor and voltage output end.Implement interactive educational system of the invention, have the advantages that circuit structure is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit it is higher.
Description
Technical field
The present invention relates to education services field, in particular to a kind of interactive educational system.
Background technique
Existing educational mode is usually the aspectant books teaching professor's teaching of Faculty and Students, and teaching efficiency is general,
It is excessively uninteresting, it is not able to satisfy present requirement.So that classroom interest enhances, teaching is imitated for the appearance of multimedia education mode
Fruit significantly improves, and it is convenient that student learns, and realizes multimedia interaction teaching, ability to exchange is strong, and teaching efficiency is good, is able to satisfy user
Requirement.However, the component that the power pack of conventional education system uses is more, circuit structure is complicated, hardware cost
It is higher, it has not been convenient to safeguard.In addition, since the power pack of conventional education system lacks corresponding circuit protection function, such as: it lacks
Few current-limiting protection function, causes the safety and reliability of circuit poor.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, provide a kind of circuit structure compared with
For simple, cost is relatively low, maintains easily, the higher interactive educational system of the safety and reliability of circuit.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of interactive educational system, including religion
Teacher's terminal and student terminal, teacher's terminal include single-chip microcontroller, dais touching display screen, the first data selecting module, monitoring
Camera, the first wireless communication module, the first data memory module, smoke sensor device, the first audio processing modules, the first video
Processing module and power module, the dais touching display screen, the first data selecting module, monitoring camera, the first channel radio
Believe module, the first data memory module, smoke sensor device, the first audio processing modules, the first video processing module and power supply mould
Block is connect with the single-chip microcontroller, and the student terminal includes microcontroller, microphone, unlocked by fingerprint module, the choosing of the second data
Select module, the second wireless communication module, the second data memory module, the second audio processing modules, sound equipment and the processing of the second video
Module, the microphone, unlocked by fingerprint module, the second data selecting module, the second wireless communication module, the second data store mould
Block, the second audio processing modules, sound equipment and the second video processing module are connect with the microcontroller, first channel radio
Letter module is wirelessly connect with second wireless communication module；
The power module includes voltage input end, the first metal-oxide-semiconductor, the first triode, the first zener diode, the first electricity
Resistance, comparator, second resistance, 3rd resistor, first capacitor and voltage output end, the voltage input end is respectively with described first
The source electrode of metal-oxide-semiconductor is connected with one end of first resistor, and the collector of the grid of first metal-oxide-semiconductor and first triode connects
It connects, the emitter of first triode is connect with the cathode of first zener diode, first zener diode
Plus earth, the other end of the first resistor respectively with the base stage of first triode, the 4th resistance one end and compared with
The cathode of device connects, the plus earth of the comparator, the drain electrode of first metal-oxide-semiconductor respectively with the second resistance one
End, first capacitor anode connected with voltage output end, the other end of the second resistance is another with the 4th resistance respectively
One end, comparator reference pole connected with one end of 3rd resistor, the other end of the 3rd resistor and the cathode of first capacitor
It is grounded, the resistance value of the 4th resistance is 48k Ω.
In interactive educational system of the present invention, the power module further includes the second diode, and described second
The anode of diode is connect with the drain electrode of first metal-oxide-semiconductor, the cathode of second diode and the one of the second resistance
End connection, the model L-2733 of second diode.
In interactive educational system of the present invention, the power module further includes the second capacitor, second electricity
One end of appearance is connect with the grid of first metal-oxide-semiconductor, the current collection of the other end of second capacitor and first triode
Pole connection, the capacitance of second capacitor are 360pF.
In interactive educational system of the present invention, the power module further includes the 5th resistance, the 5th electricity
One end of resistance is connect with the voltage input end, and the other end of the 5th resistance is connect with the source electrode of first metal-oxide-semiconductor, institute
The resistance value for stating the 5th resistance is 35k Ω.
In interactive educational system of the present invention, first metal-oxide-semiconductor is P-channel metal-oxide-semiconductor.
In interactive educational system of the present invention, first triode is NPN type triode.
In interactive educational system of the present invention, first wireless communication module and the second wireless communication module
It is bluetooth module, WIFI module, gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-
SCDMA module, Zigbee module or LoRa module.
Implement interactive educational system of the invention, has the advantages that whole due to being equipped with teacher's terminal and student
End, teacher's terminal include single-chip microcontroller, dais touching display screen, the first data selecting module, monitoring camera, the first wireless communication
Module, the first data memory module, smoke sensor device, the first audio processing modules, the first video processing module and power module；
Power module includes voltage input end, the first metal-oxide-semiconductor, the first triode, the first zener diode, first resistor, comparator,
Two resistance, 3rd resistor, first capacitor and voltage output end, the power module compared with the power pack of conventional education system,
The component that it is used is less, due to saving some components, can reduce hardware cost in this way, in addition, the 4th resistance is used
In carrying out current-limiting protection, thus circuit structure is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit compared with
It is high.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram in interactive educational system one embodiment of the present invention；
Fig. 2 is the circuit diagram of power module in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In interactive educational system embodiment of the present invention, the structural schematic diagram of the interactive educational system is as shown in Figure 1.
In Fig. 1, which includes teacher's terminal 1 and student terminal 2, and teacher's terminal 1 includes single-chip microcontroller 10, dais touch-control
Display screen 11, the first data selecting module 12, monitoring camera 13, the first wireless communication module 14, the first data memory module
15, smoke sensor device 16, the first audio processing modules 17, the first video processing module 18 and power module 19, wherein dais touching
It controls display screen 11, the first data selecting module 12, monitoring camera 13, the first wireless communication module 14, the first data and stores mould
Block 15, smoke sensor device 16, the first audio processing modules 17, the first video processing module 18 and power module 19 are and single-chip microcontroller
10 connections, student terminal 2 include microcontroller 21, microphone 22, unlocked by fingerprint module 23, the second data selecting module 24, the
Two wireless communication modules 25, the second data memory module 26, the second audio processing modules 27, sound equipment 28 and the second video handle mould
Block 29, wherein microphone 22, unlocked by fingerprint module 23, the second data selecting module 24, the second wireless communication module 25, second
Data memory module 26, the second audio processing modules 27, sound equipment 28 and the second video processing module 29 connect with microcontroller 21
It connects, the first wireless communication module 14 is wirelessly connect with the second wireless communication module 25.
Dais touching display screen 11 be arranged on dais, monitoring camera 13 be arranged it is multiple, and be arranged in classroom difference position
It sets, smoke sensor device 16 is arranged in multi-media platform, has in the first data memory module 15 and the second data memory module 26
Cartoon databank, picture database and audio database.The present invention can be realized multimedia education, so that classroom interest increases
By force, teaching efficiency significantly improves, and it is convenient that student learns, and realizes media interactive mode teaching, and ability to exchange is strong, and teaching efficiency is good,
It is able to satisfy the requirement of user.
In the present embodiment, the first wireless communication module 14 and the second wireless communication module 25 are bluetooth module, WIFI mould
Block, gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module or
LoRa module.By the way that various wireless communication mode is arranged, it can not only increase the flexibility of communication, moreover it is possible to meet not
With the demand of user and different occasions.When in particular by LoRa module, farther out, and communication performance is more steady for communication distance
It is fixed, it is suitable for the higher occasion of QoS requirement.
Fig. 2 is the circuit diagram of power module in the present embodiment, and in Fig. 2, which includes voltage input end
Vin, the first metal-oxide-semiconductor M1, the first triode Q1, the first zener diode D1, first resistor R1, comparator U1, second resistance R2,
3rd resistor R3, first capacitor C1 and voltage output end Vo, voltage input end Vin respectively with the source electrode of the first metal-oxide-semiconductor M1 and
One end of one resistance R1 connects, and the grid of the first metal-oxide-semiconductor M1 is connect with the collector of the first triode Q1, the first triode Q1's
Emitter is connect with the cathode of the first zener diode D1, and the plus earth of the first zener diode D1, first resistor R1's is another
One end is connect with the base stage of the first triode Q1, one end of the 4th resistance R4 and the cathode of comparator U1 respectively, comparator U1's
Plus earth, the anode and voltage output end with one end of second resistance R2, first capacitor C1 respectively that drain of the first metal-oxide-semiconductor M1
Vo connection, the other end of second resistance R2 respectively with the other end of the 4th resistance R4, the reference pole of comparator U1 and 3rd resistor
One end of R3 connects, and the cathode of the 3rd resistor other end such as and first capacitor C1 are grounded.
The power module 19 is compared with the power pack of conventional education system, and the component used is less, circuit structure
It is relatively simple, it maintains easily, due to saving some components, hardware cost can be reduced in this way.In addition, the 4th resistance R4 is
Current Limiting Diodes, for carrying out current-limiting protection, therefore the safety and reliability of circuit is higher.It is noted that this implementation
In example, the resistance value of the 4th resistance R4 is 48k Ω, and certainly, in practical applications, the resistance value of the 4th resistance R4 can be according to specific feelings
Condition adjusts accordingly, that is, the resistance value of the 4th resistance R4 can be increased accordingly or be reduced as the case may be.
In the present embodiment, first resistor R1, second resistance R2,3rd resistor R3, comparator U1, the first zener diode
D1, the first triode Q1 and the 4th resistance R4 constitute adjustment pipe control unit, and the first metal-oxide-semiconductor M1 is adjustment pipe, first capacitor C1
For filter capacitor.
The working principle of the power module 19 is as follows: circuit one powers on, and the input voltage of voltage input end Vin passes through first
Resistance R1, the base-emitter of the first triode Q1, the first zener diode D1 provide cut-in voltage for the first triode Q1,
And base current is generated, the first triode Q1 conducting, the grid of the first metal-oxide-semiconductor M1 is set low, and the grid source for obtaining the first metal-oxide-semiconductor M1 is opened
Open voltage.After the first metal-oxide-semiconductor M1 is opened, input voltage then pass through the Drain-Source of the first metal-oxide-semiconductor M1 to first capacitor C1 into
Row charging, when charging voltage is more than the output voltage set by second resistance R2,3rd resistor R3, the anode meeting of comparator U1
It is reduced to reference voltage 3V, Low ESR is presented, since the emitter of the first triode Q1 has been connected the first zener diode D1, institute
With the first triode Q1 cut-off.
The grid voltage of first metal-oxide-semiconductor M1 is close to input voltage, and high impedance is presented in the first metal-oxide-semiconductor M1, by first capacitor C1
Output voltage is maintained, when output voltage of the discharge voltage of first capacitor C1 lower than setting, the cathode of comparator U1 presents high
Impedance, the first triode Q1 are entered voltage again and are opened by first resistor R1, and the first metal-oxide-semiconductor M1 conducting provides voltage output,
And continue to charge to first capacitor C1, continually to export stable DC voltage, the above process is executed repeatedly,
A steady dc voltage can have been obtained in voltage output end.
When circuit powers on, the first metal-oxide-semiconductor M1 is controlled by adjustment pipe control unit and is opened, input voltage passes through first capacitor
C1 charges, and when charging voltage is more than the output voltage of setting, it is high that adjustment pipe control unit controls the first metal-oxide-semiconductor M1 presentation
Impedance prevents input voltage from being inputted by the first metal-oxide-semiconductor M1, maintains output voltage by first capacitor C1；Work as first capacitor
When the discharge voltage of C1 is lower than the output voltage set, adjustment pipe control unit controls the first metal-oxide-semiconductor M1 conducting, voltage input end
The input voltage of Vin continues to charge by first capacitor C1, continually to export stable DC voltage, repeatedly
The above process is executed, a steady dc voltage can be obtained in voltage output end.The power module 19 is without auxiliary electricity
The output of burning voltage can be realized in source.
In the present embodiment, the first metal-oxide-semiconductor M1 is P-channel metal-oxide-semiconductor, and the first triode Q1 is NPN type triode.Certainly, exist
In practical application, the first metal-oxide-semiconductor M1 can be N-channel MOS pipe, and the first triode Q1 may be PNP type triode, but at this moment
The structure of circuit also will accordingly change.
In the present embodiment, which further includes the anode and the first MOS of the second diode D2, the second diode D2
The drain electrode of pipe M1 connects, and the cathode of the second diode D2 is connect with one end of second resistance R2.Second diode D2 is current limliting two
Pole pipe carries out current-limiting protection for the drain current to the first metal-oxide-semiconductor M1.It is noted that in the present embodiment, the two or two pole
The model L-2733 of pipe D2, certainly, in practical applications, the second diode D2 can also have similar function using other models
The diode of energy.
In the present embodiment, which further includes the second capacitor C2, one end of the second capacitor C2 and the first metal-oxide-semiconductor M1
Grid connection, the other end of the second capacitor C2 connect with the collector of the first triode Q1.Second capacitor C2 is coupled capacitor,
For preventing the interference between the first metal-oxide-semiconductor M1 and the first triode Q1, further to enhance the safety of circuit and reliable
Property.It is noted that the capacitance of the second capacitor C2 is 360pF in the present embodiment, certainly, in practical applications, the second electricity
The capacitance for holding C2 can adjust accordingly as the case may be, that is, the capacitance of the second capacitor C2 can be according to specific
Situation is increased accordingly or is reduced.
In the present embodiment, which further includes the 5th resistance R5, one end of the 5th resistance R5 and voltage input end
Vin connection, the other end of the 5th resistance R5 are connect with the source electrode of the first metal-oxide-semiconductor M1.5th resistance R5 be current-limiting resistance, for pair
The source current of first metal-oxide-semiconductor M1 carries out current-limiting protection, to further enhance current-limiting function.It is noted that the present embodiment
In, the resistance value of the 5th resistance R5 is 35k Ω, and certainly, in practical applications, the resistance value of the 5th resistance R5 can be as the case may be
It adjusts accordingly, that is, the resistance value of the 5th resistance R5 can be increased accordingly or be reduced as the case may be.
In short, in the present embodiment, the power module 19 is compared with the power pack of conventional education system, first device for using
Part is less, and circuit structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware cost in this way.Separately
Outside, current-limiting resistance is equipped in the power module 19, therefore the safety and reliability of circuit is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of interactive educational system, which is characterized in that including teacher's terminal and student terminal, teacher's terminal includes single
Piece machine, dais touching display screen, the first data selecting module, monitoring camera, the first wireless communication module, the storage of the first data
Module, smoke sensor device, the first audio processing modules, the first video processing module and power module, the dais touch-control are shown
Screen, the first data selecting module, monitoring camera, the first wireless communication module, the first data memory module, smoke sensor device,
First audio processing modules, the first video processing module and power module are connect with the single-chip microcontroller, the student terminal packet
Include microcontroller, microphone, unlocked by fingerprint module, the second data selecting module, the second wireless communication module, the storage of the second data
Module, the second audio processing modules, sound equipment and the second video processing module, the microphone, unlocked by fingerprint module, the second data
At selecting module, the second wireless communication module, the second data memory module, the second audio processing modules, sound equipment and the second video
Reason module is connect with the microcontroller, and first wireless communication module and second wireless communication module pass through wirelessly
Mode connects；
The power module include voltage input end, the first metal-oxide-semiconductor, the first triode, the first zener diode, first resistor,
Comparator, second resistance, 3rd resistor, first capacitor and voltage output end, the voltage input end respectively with the first MOS
The source electrode of pipe is connected with one end of first resistor, and the grid of first metal-oxide-semiconductor is connect with the collector of first triode,
The emitter of first triode is connect with the cathode of first zener diode, the anode of first zener diode
Ground connection, the other end of the first resistor respectively with the base stage of first triode, one end of the 4th resistance and comparator
Cathode connection, the plus earth of the comparator, the drain electrode of first metal-oxide-semiconductor respectively with one end of the second resistance, the
One capacitor anode connected with voltage output end, the other end of the second resistance respectively with the other end of the 4th resistance,
The reference pole of comparator is connected with one end of 3rd resistor, and the other end of the 3rd resistor and the cathode of first capacitor connect
Ground, the resistance value of the 4th resistance are 48k Ω.
2. interactive educational system according to claim 1, which is characterized in that the power module further includes the two or two pole
Pipe, the anode of second diode connect with the drain electrode of first metal-oxide-semiconductor, the cathode of second diode and described the
One end of two resistance connects, the model L-2733 of second diode.
3. interactive educational system according to claim 2, which is characterized in that the power module further includes the second electricity
Hold, one end of second capacitor is connect with the grid of first metal-oxide-semiconductor, the other end of second capacitor and described first
The collector of triode connects, and the capacitance of second capacitor is 360pF.
4. interactive educational system according to claim 3, which is characterized in that the power module further includes the 5th electricity
Resistance, one end of the 5th resistance are connect with the voltage input end, the other end and first metal-oxide-semiconductor of the 5th resistance
Source electrode connection, the resistance value of the 5th resistance is 35k Ω.
5. interactive educational system according to any one of claims 1 to 4, which is characterized in that first metal-oxide-semiconductor is
P-channel metal-oxide-semiconductor.
6. interactive educational system according to any one of claims 1 to 4, which is characterized in that first triode
For NPN type triode.
7. interactive educational system according to any one of claims 1 to 4, which is characterized in that first channel radio
Letter module and the second wireless communication module be bluetooth module, WIFI module, gsm module, GPRS module, CDMA module,
CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module or LoRa module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811386688.6A CN109300348A (en) | 2018-11-20 | 2018-11-20 | Interactive educational system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811386688.6A CN109300348A (en) | 2018-11-20 | 2018-11-20 | Interactive educational system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109300348A true CN109300348A (en) | 2019-02-01 |
Family
ID=65144536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811386688.6A Pending CN109300348A (en) | 2018-11-20 | 2018-11-20 | Interactive educational system |
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| Country | Link |
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| CN (1) | CN109300348A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110728837A (en) * | 2019-11-07 | 2020-01-24 | 广州市赛狄王体育用品有限公司 | Basketball formula intelligence audio amplifier control system based on wireless mode |
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| CN201975993U (en) * | 2010-12-21 | 2011-09-14 | 惠州三华工业有限公司 | Adjusting tube type series voltage stabilizing circuit |
| CN203366564U (en) * | 2013-03-22 | 2013-12-25 | 传课计算机系统(北京)有限公司 | Interactive network education system |
| CN107909872A (en) * | 2017-12-26 | 2018-04-13 | 潍坊科技学院 | A kind of Chinese educational system |
| CA3043769A1 (en) * | 2016-11-23 | 2018-05-31 | Nelson Education Ltd | End to end educational system and method |
| CN207730866U (en) * | 2017-12-27 | 2018-08-14 | 珠海市德宇辉煌信息科技有限公司 | Terminal access device |
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2018
- 2018-11-20 CN CN201811386688.6A patent/CN109300348A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201975993U (en) * | 2010-12-21 | 2011-09-14 | 惠州三华工业有限公司 | Adjusting tube type series voltage stabilizing circuit |
| CN203366564U (en) * | 2013-03-22 | 2013-12-25 | 传课计算机系统(北京)有限公司 | Interactive network education system |
| CA3043769A1 (en) * | 2016-11-23 | 2018-05-31 | Nelson Education Ltd | End to end educational system and method |
| CN107909872A (en) * | 2017-12-26 | 2018-04-13 | 潍坊科技学院 | A kind of Chinese educational system |
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| CN110728837A (en) * | 2019-11-07 | 2020-01-24 | 广州市赛狄王体育用品有限公司 | Basketball formula intelligence audio amplifier control system based on wireless mode |
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Application publication date: 20190201 |
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