CN208400333U

CN208400333U - It is a kind of that teaching device is admired based on Internet of Things

Info

Publication number: CN208400333U
Application number: CN201821383516.9U
Authority: CN
Inventors: 刘捷
Original assignee: Shaanxi Radio And Television University (shaanxi Business Vocational College)
Current assignee: Shaanxi Radio And Television University (shaanxi Business Vocational College)
Priority date: 2018-08-27
Filing date: 2018-08-27
Publication date: 2019-01-18
Anticipated expiration: 2028-08-27

Abstract

The utility model discloses a kind of to admire teaching device based on Internet of Things, including the teaching end of front and multiple personal ends being mounted on desktop in classroom is arranged in；Teaching end includes the PC machine being connected in Internet network and the first micro controller module and the first Zigbee wireless communication module that are connected by usb circuit module with PC machine；The output of PC machine is terminated with the projector for playing instructional video picture and the stereo set for playing teaching voice；Personal end includes the second micro controller module and power circuit block and the 2nd Zigbee wireless communication module；The input of second micro controller module is terminated with fingerprint identification module, voice collecting circuit module and key circuit module.The utility model simple structure and reasonable design realizes convenient and at low cost, complete function, can effectively improve the interactivity for admiring class classroom, and practical, using effect is good, convenient for promoting the use of.

Description

It is a kind of that teaching device is admired based on Internet of Things

Technical field

The utility model belongs to Internet of Things information technology field, and in particular to a kind of to admire teaching dress based on Internet of Things It sets.

Background technique

Admire class, i.e., opens online course on a large scale, be the product of " internet+education ", be the one kind emerged recently Online course development mode, admiring class not is aspectant course, these courses intersperse among on internet, and no matter you are in what Place can spend least money to enjoy the first-class course of American university, it is only necessary to a computer and net connection；Admire class Appearance forms certain impact to traditional universities education, compared with traditional universities, admires that class is novel flexibly with teaching method, gives lessons The features such as teacher's popularity is high, learner's learning autonomy is strong, admiring class will cooperate in competition with traditional universities, mutually merge Middle coordinated development.But in the prior art, admire teaching and lack certain classroom interaction, if it is possible to class and Internet of Things phase will be admired In conjunction with will more improve and admire the interactivity in class classroom, and make to admire teaching and reality is imparted knowledge to students and is more nearly.In the prior art, it also lacks Weary circuit structure is simple, realizes convenient and at low cost, complete function, can effectively improve and admire the interactive, practical of class classroom Admire teaching device.

Utility model content

The technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide one kind to be based on Internet of Things admires teaching device, and simple structure and reasonable design is realized convenient and at low cost, complete function, can be effectively improved Admire the interactivity in class classroom, practical, using effect is good, convenient for promoting the use of.

In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of to admire class religion based on Internet of Things Learn device, it is characterised in that: including the teaching end of front and multiple personal ends being mounted on desktop in classroom is arranged in；

The teaching end includes the PC machine being connected in Internet network and by usb circuit module and PC machine phase The first micro controller module connect, and the first Zigbee wireless communication module to connect with the first micro controller module；It is described The output of PC machine is terminated with the projector for playing instructional video picture and the stereo set for playing teaching voice；

The individual end includes the second micro controller module and the power circuit mould for electricity consumption module for power supply each in personal end Block, and connect with the second micro controller module and be used to be wirelessly connected and lead to teaching the first Zigbee wireless communication module of end 2nd Zigbee wireless communication module of letter；The input of second micro controller module is terminated with fingerprint identification module, voice Acquisition circuit module and key circuit module.

It is above-mentioned a kind of teaching device to be admired based on Internet of Things, it is characterised in that: the usb circuit module includes USB joint J1, light emitting diode D3, light emitting diode D4, power supply chip CN3062, PNP type triode TIP42C, polar capacitor CE3, polar capacitor CE4, polar capacitor CE5, polar capacitor CE6, nonpolar capacitor C25, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, two-way Transient Suppression Diode TVS1 and two-way transient state Inhibit diode TVS2 and model is the linear voltage regulator TC1 and linear voltage regulator TC2 of TL431；The USB joint J1 The 1st pin, the anode of polar capacitor CE3, nonpolar capacitor C25 one end, one end of resistance R11 and one end of resistance R12 It is connect with the 4th pin of power supply chip CN3062, the 5th pin of the USB joint J1, the cathode of polar capacitor CE3 and non- The other end of polar capacitor C25 is grounded, and the other end of the resistance R11 is connect with the anode of light emitting diode D3, the electricity The other end of resistance R12 is connect with the anode of light emitting diode D4, the cathode and power supply chip CN3062 of the light emitting diode D3 The connection of the 6th pin, the cathode of the light emitting diode D4 connects with the 7th pin of power supply chip CN3062, the USB joint The 2nd pin of J1 is connect with one end of two-way Transient Suppression Diode TVS1, and the two-way Transient Suppression Diode TVS1's is another One end is the first data communication end PB10 of usb circuit module, and the 3rd pin of the USB joint J1 and two-way transient state press down One end of diode TVS2 processed connects, and the other end of the two-way Transient Suppression Diode TVS2 is usb circuit module The 1st pin and the 3rd pin of second data communication end PB11, the power supply chip CN3062 are grounded, the power supply chip The 2nd pin of CN3062 is grounded by resistance R13, the 5th pin, the 8th pin, polar capacitor of the power supply chip CN3062 The anode of the anode of CE4, one end of resistance R14 and polar capacitor CE5 is connect with the emitter of triode TIP42C, the pole The cathode of property capacitor CE4 and the cathode of polar capacitor CE5 are grounded, the base stage of the triode TIP42C, resistance R14 it is another End and one end of resistance R15 are connect with the 3rd pin of linear voltage regulator TC1, the 1st pin of the linear voltage regulator TC1 with The other end of resistance R15 is connect with the 3rd pin of linear voltage regulator TC2, and the 2nd pin of the linear voltage regulator TC1 passes through Resistance R16 ground connection, the 1st pin of the linear voltage regulator TC1, one end of resistance R18 are connect with one end of resistance R17, institute It states the collector of triode TIP42C and the anode of the other end of resistance R17 and polar capacitor CE6 is all connected with, and be USB interface The 3.3V voltage output end of circuit module, the other end and polar capacitor of the 2nd pin of the linear voltage regulator TC2, resistance R18 The cathode of CE6 is grounded.

It is above-mentioned a kind of teaching device to be admired based on Internet of Things, it is characterised in that: the first micro controller module packet Include the ARM microprocessor U1 of model STM32F103VET6 and connect with ARM microprocessor U1 the first crystal oscillating circuit, Two crystal oscillating circuits and the first reset circuit, the 11st pin of the ARM microprocessor U1, the 28th pin, the 50th pin, the 75th are drawn Foot and the 100th pin are connect with the 3.3V voltage output end of usb circuit module, and the 10th of the ARM microprocessor U1 the Pin, the 27th pin, the 49th pin, the 74th pin and the 99th pin are grounded, the 47th pin of the ARM microprocessor U1 with First data communication end PB10 connection of usb circuit module, the 48th pin and USB interface of the ARM microprocessor U1 Second data communication end PB11 connection of circuit module；First crystal oscillating circuit includes crystal oscillator Y1, crystal oscillator Y2, nonpolar capacitor C1 and nonpolar capacitor C2, one end of one end of the crystal oscillator Y1, one end of crystal oscillator Y2 and nonpolar capacitor C1 with the micro- place ARM Manage the 8th pin connection of device U1, one end of the other end of the crystal oscillator Y1, the other end of crystal oscillator Y2 and nonpolar capacitor C2 with The 9th pin of ARM microprocessor U1 connects, and the other end of the other end of the nonpolarity capacitor C1 and nonpolar capacitor C2 connect Ground；Second crystal oscillating circuit includes crystal oscillator Y3, nonpolarity capacitor C3 and nonpolar capacitor C4, one end of the crystal oscillator Y3 and non- One end of polar capacitor C3 is connect with the 12nd pin of ARM microprocessor U1, the other end and the nonpolarity electricity of the crystal oscillator Y3 The one end for holding C4 is connect with the 13rd pin of ARM microprocessor U1, the other end and nonpolarity electricity of the nonpolarity capacitor C3 The other end for holding C4 is grounded；First reset circuit includes the negative of polar capacitor C5 and resistance R1, the polar capacitor C5 Pole and one end of resistance R1 are connect with the 14th pin of ARM microprocessor U1, the anode and USB interface of the polar capacitor C5 The 3.3V voltage output end of circuit module connects, the other end ground connection of the resistance R1.

It is above-mentioned a kind of teaching device to be admired based on Internet of Things, it is characterised in that: the first Zigbee wireless communication Module includes the ZigBee wireless communication module U3 of model CC2530, the VCC pin of the ZigBee wireless communication module U3 It is connect with the 3.3V voltage output end of usb circuit module, the GND pin ground connection of the ZigBee wireless communication module U3, The TX pin of the ZigBee wireless communication module U3 is connect with the 26th pin of ARM microprocessor U1, and the ZigBee is wireless The RX pin of communication module U3 is connect with the 25th pin of ARM microprocessor U1.

It is above-mentioned a kind of teaching device to be admired based on Internet of Things, it is characterised in that: the power circuit block includes 5V Charged lithium cells and 5V to the 3.3V voltage conversion circuit being connect by power switch with the output end of 5V charged lithium cells；It is described 5V to 3.3V voltage conversion circuit includes the voltage-stablizer U12, nonpolar capacitor C18, nonpolar capacitor C19 of model AMS1117 With polar capacitor C20, one end of the Vin pin of the voltage-stablizer U12 and nonpolar capacitor C18 pass through power switch and fill with 5V The output end of electric lithium battery connects, the GND pin of the voltage-stablizer U12, the other end of nonpolar capacitor C18, nonpolar capacitor One end of C19 and the cathode of polar capacitor C20 are grounded, and the Vout pin of the voltage-stablizer U12 is another with nonpolar capacitor C19's The anode of one end and polar capacitor C20 are all connected with, and are the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit.

It is above-mentioned a kind of teaching device to be admired based on Internet of Things, it is characterised in that: the second micro controller module packet Include the ARM microprocessor U11 of model STM32F103VET6 and connect with ARM microprocessor U11 third crystal oscillating circuit, 4th crystal oscillating circuit and the second reset circuit, the 11st pin, the 28th pin, the 50th pin, of the ARM microprocessor U11 75 pins and the 100th pin are connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit, the ARM microprocessor The 10th pin, the 27th pin, the 49th pin, the 74th pin and the 99th pin of U11 is grounded；The third crystal oscillating circuit includes Crystal oscillator Y4, crystal oscillator Y5, nonpolarity capacitor C11 and nonpolar capacitor C12, one end of the crystal oscillator Y4, one end of crystal oscillator Y5 and non- One end of polar capacitor C11 is connect with the 8th pin of ARM microprocessor U11, the other end of the crystal oscillator Y4, crystal oscillator Y5 One end of the other end and nonpolar capacitor C12 are connect with the 9th pin of ARM microprocessor U11, the nonpolarity capacitor C11 The other end and the other end of nonpolar capacitor C12 be grounded；4th crystal oscillating circuit includes crystal oscillator Y6, nonpolar capacitor One end of one end and nonpolar capacitor C14 of C14 and nonpolar capacitor C15, the crystal oscillator Y6 is with ARM microprocessor U11's One end of the connection of 92nd pin, the other end of the crystal oscillator Y6 and nonpolarity capacitor C15 with ARM microprocessor U11 the 93rd The other end of pin connection, the other end of the nonpolarity capacitor C14 and nonpolar capacitor C15 are grounded；Described second resets Circuit include polar capacitor C16 and resistance R8, the polar capacitor C16 cathode and resistance R8 one end with ARM micro process The 14th pin of device U11 connects, the 3.3V voltage output of the anode and 5V to 3.3V voltage conversion circuit of the polar capacitor C16 End connection, the other end ground connection of the resistance R8.

It is above-mentioned a kind of teaching device to be admired based on Internet of Things, it is characterised in that: the 2nd Zigbee wireless communication Module includes the ZigBee wireless communication module U13 of model CC2530, and the VCC of the ZigBee wireless communication module U13 draws Foot is connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit, and the GND of the ZigBee wireless communication module U13 draws Foot ground connection, the TX pin of the ZigBee wireless communication module U13 is connect with the 26th pin of ARM microprocessor U11, described The RX pin of ZigBee wireless communication module U13 is connect with the 25th pin of ARM microprocessor U11.

It is above-mentioned a kind of teaching device to be admired based on Internet of Things, it is characterised in that: the fingerprint identification module includes referring to The 1st pin and the 3rd pin of line identification module MR608, the fingerprint identification module MR608 convert electricity with 5V to 3.3V voltage The 3.3V voltage output end on road connects, and the 2nd pin of the fingerprint identification module MR608 draws with the 63rd of ARM microprocessor U11 Foot connection, the 4th pin of the fingerprint identification module MR608 are connect with the 69th pin of ARM microprocessor U11, the fingerprint The 5th pin of identification module MR608 is connect with the 68th pin of ARM microprocessor U11, the fingerprint identification module MR608's 6th pin ground connection.

It is above-mentioned a kind of teaching device to be admired based on Internet of Things, it is characterised in that: the voice collecting circuit module packet Include sequentially connected sound pick-up, signal amplification circuit and filter circuit；The signal amplification circuit include nonpolar capacitor C21, Nonpolar capacitor C22, nonpolar capacitor C23, resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26 and Resistance R27 and model are the operational amplifier VR1 and operational amplifier VR2 of LM358；One end of the resistance R21 and electricity The one end for hindering R22 is connect with the anode of sound pick-up, and the other end of the resistance R21 and the output end of 5V charged lithium cells connect It connects, and is grounded by nonpolarity capacitor C21, the 2nd pin of the operational amplifier VR1 is connect with the other end of resistance R22, institute The 3rd pin for stating operational amplifier VR1 is connect by resistance R24 with the 1st pin of operational amplifier VR1, and with resistance R23's The other end of one end connection, the resistance R23 is grounded by nonpolarity capacitor C22, the 8th pin of the operational amplifier VR1 It is connect with the output end of 5V charged lithium cells, the 4th pin ground connection of the operational amplifier VR1, the operational amplifier VR2's 2nd pin is connect by resistance R25 with the 1st pin of operational amplifier VR1, and the 3rd pin of the operational amplifier VR2 passes through Resistance R27 is connect with the 1st pin of operational amplifier VR2, and is connect with one end of resistance R26, the other end of the resistance R26 It is grounded by nonpolar capacitor C23, the 8th pin of the operational amplifier VR2 is connect with the output end of 5V charged lithium cells, institute The 4th pin ground connection of operational amplifier VR2 is stated, the 1st pin of the operational amplifier VR2 is that the signal of signal amplification circuit is defeated Outlet VOI；The filter circuit include operational amplifier NE5532, nonpolar capacitor C24, nonpolar capacitor C26, resistance R28, The signal output end VOI connection of one end and signal amplification circuit of resistance R29, resistance R30 and resistance R31, the resistance R28, The other end of the resistance R28 is connect with one end of resistance R29, and passes through nonpolarity capacitor C24 and operational amplifier NE5532 The 1st pin connection, the 2nd pin of the operational amplifier NE5532 is connect with the other end of resistance R29, and passes through nonpolarity Capacitor C26 ground connection, the 3rd pin of the operational amplifier NE5532 are grounded by resistance R30, and pass through resistance R31 and operation The 1st pin of amplifier NE5532 connects, the 1st pin of the operational amplifier NE5532 and the 34th of ARM microprocessor U11 Pin connection, the 8th pin of the operational amplifier NE5532 are connect with the output end of 5V charged lithium cells, the operation amplifier The 4th pin of device NE5532 is grounded.

It is above-mentioned a kind of teaching device to be admired based on Internet of Things, it is characterised in that: the key circuit module includes pressing Key K1 and resistance R9, one end of the key K1 are connect with the 33rd pin of ARM microprocessor U11, and the key K1's is another End is grounded by resistance R9.

Compared with the prior art, the utility model has the following advantages:

1, the utility model uses modular design, and circuit structure is simple, and design rationally, realizes convenient and cost It is low.

2, the utility model can be realized the teaching end for admiring teaching device and individual using Zigbee wireless communication module The wireless data transmission at end, strong antijamming capability, data transmission are reliable and stable.

3, the utility model can be used in being acquired student's finger print information by setting fingerprint identification module, can Identification and attending class for student is registered；It, can be to the language of student individual by the way that voice collecting circuit module is arranged Message breath is acquired, and can be used in the online voice asked questions of student；By setting button circuit module, can be used in learning Member's raises one's hand to put question to online, the exchange and interdynamic of student and online teacher when convenient for admiring teaching；The complete function of the utility model.

4, the functional reliability of the utility model is high, can effectively become the hardware carrier for improving and admiring class classroom interaction, Practical, using effect is good, convenient for promoting the use of.

In conclusion the utility model has the advantages of simple structure, design is reasonable, realizes convenient and at low cost, complete function, can have Effect improves the interactivity for admiring class classroom, and practical, using effect is good, convenient for promoting the use of.

Below by drawings and examples, the technical solution of the utility model is described in further detail.

Detailed description of the invention

Fig. 1 is the schematic block circuit diagram of the utility model.

Fig. 2 is the circuit diagram of the utility model usb circuit module.

Fig. 3 is the circuit diagram of the first micro controller module of the utility model.

Fig. 4 is the circuit diagram of the first Zigbee wireless communication module of the utility model.

Fig. 5 is the circuit connection of the utility model 5V charged lithium cells, power switch and 5V to 3.3V voltage conversion circuit Figure.

Fig. 6 is the circuit diagram of the second micro controller module of the utility model.

Fig. 7 is the circuit diagram of the 2nd Zigbee wireless communication module of the utility model.

Fig. 8 is the circuit diagram of the utility model fingerprint identification module.

Fig. 9 is the circuit diagram of the utility model signal amplification circuit.

Figure 10 is the circuit diagram of the utility model filter circuit.

Figure 11 is the circuit diagram of the utility model key circuit module.

Description of symbols:

1-PC machine；2-the first micro controller module；3-usb circuit modules；

4-the one Zigbee wireless communication module；5-projectors；

6-stereo sets；7-the second micro controller module；8-power circuit blocks；

8-1-5V charged lithium cells；8-2-5V to 3.3V voltage conversion circuit；

8-3-power switch；9-the two Zigbee wireless communication module；

10-fingerprint identification modules；11-voice collecting circuit modules；

11-1-sound pick-up；11-2-signal amplification circuit；11-3-filter circuit；

12-key circuit modules.

Specific embodiment

As shown in Figure 1, the utility model includes that the teaching end of front in classroom is arranged in and multiple is mounted on desktop On personal end；

The teaching end includes the PC machine 1 being connected in Internet network and by usb circuit module 3 and PC machine 1 the first micro controller module 2 to connect, and the first Zigbee wireless communication module to connect with the first micro controller module 2 4；The output of the PC machine 1 is terminated with the projector 5 for playing instructional video picture and the sound equipment for playing teaching voice Equipment 6；

The individual end includes the second micro controller module 7 and the power circuit mould for electricity consumption module for power supply each in personal end Block 8, and connect with the second micro controller module 7 and be used to be wirelessly connected with teaching the first Zigbee wireless communication module 4 of end And the 2nd Zigbee wireless communication module 9 communicated；The input of second micro controller module 7 is terminated with fingerprint identification module 10, voice collecting circuit module 11 and key circuit module 12.

In the present embodiment, as shown in Fig. 2, the usb circuit module 3 include USB joint J1, light emitting diode D3, Light emitting diode D4, power supply chip CN3062, PNP type triode TIP42C, polar capacitor CE3, polar capacitor CE4, polarity electricity Hold CE5, polar capacitor CE6, nonpolar capacitor C25, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, two-way Transient Suppression Diode TVS1 and two-way Transient Suppression Diode TVS2 and model are equal For the linear voltage regulator TC1 and linear voltage regulator TC2 of TL431；The 1st pin of the USB joint J1, polar capacitor CE3 are just Pole, nonpolar capacitor C25 one end, one end of resistance R11 and one end of resistance R12 draw with the 4th of power supply chip CN3062 the The other end of foot connection, the 5th pin of the USB joint J1, the cathode of polar capacitor CE3 and nonpolar capacitor C25 is grounded, The other end of the resistance R11 is connect with the anode of light emitting diode D3, the other end and light emitting diode D4 of the resistance R12 Anode connection, the cathode of the light emitting diode D3 connect with the 6th pin of power supply chip CN3062, the light emitting diode The cathode of D4 connects with the 7th pin of power supply chip CN3062, and the 2nd pin of the USB joint J1 and two-way transient state inhibit two One end of pole pipe TVS1 connects, and the other end of the two-way Transient Suppression Diode TVS1 is the first of usb circuit module 3 The 3rd pin of data communication end PB10, the USB joint J1 are connect with one end of two-way Transient Suppression Diode TVS2, described The other end of two-way Transient Suppression Diode TVS2 is the second data communication end PB11 of usb circuit module 3, the power supply The 1st pin of chip CN3062 and the 3rd pin are grounded, and the 2nd pin of the power supply chip CN3062 is connect by resistance R13 Ground, the 5th pin, the 8th pin, the anode of polar capacitor CE4, one end of resistance R14 and the polarity of the power supply chip CN3062 The anode of capacitor CE5 is connect with the emitter of triode TIP42C, the cathode and polar capacitor CE5 of the polar capacitor CE4 Cathode be grounded, one end of the base stage of the triode TIP42C, the other end of resistance R14 and resistance R15 with it is linear steady The 3rd pin of depressor TC1 connects, and the other end of the 1st pin of the linear voltage regulator TC1 and resistance R15 are and linear voltage stabilization The 3rd pin of device TC2 connects, and the 2nd pin of the linear voltage regulator TC1 is grounded by resistance R16, the linear voltage regulator The 1st pin of TC1, one end of resistance R18 are connect with one end of resistance R17, the collector and electricity of the triode TIP42C The anode of the other end and polar capacitor CE6 that hinder R17 is all connected with, and is the 3.3V voltage output end of usb circuit module 3, The 2nd pin, the other end of resistance R18 and the cathode of polar capacitor CE6 of the linear voltage regulator TC2 is grounded.

In the present embodiment, as shown in figure 3, first micro controller module 2 includes model STM32F103VET6's ARM microprocessor U1 and the first crystal oscillating circuit to connect with ARM microprocessor U1, the second crystal oscillating circuit and first reset electricity Road, the 11st pin, the 28th pin, the 50th pin, the 75th pin and the 100th pin of the ARM microprocessor U1 connect with USB The 3.3V voltage output end connection of mouthful circuit module 3, the 10th pin of the ARM microprocessor U1, the 27th pin, the 49th are drawn Foot, the 74th pin and the 99th pin are grounded, and the of the 47th pin of the ARM microprocessor U1 and usb circuit module 3 One data communication end PB10 connection, the 48th pin of the ARM microprocessor U1 and the second data of usb circuit module 3 Communication ends PB11 connection；First crystal oscillating circuit includes crystal oscillator Y1, crystal oscillator Y2, nonpolarity capacitor C1 and nonpolar capacitor C2, One end of one end of the crystal oscillator Y1, one end of crystal oscillator Y2 and nonpolar capacitor C1 connects with the 8th pin of ARM microprocessor U1 Connect, one end of the other end of the crystal oscillator Y1, the other end of crystal oscillator Y2 and nonpolar capacitor C2 with ARM microprocessor U1 the The other end of the connection of 9 pins, the other end of the nonpolarity capacitor C1 and nonpolar capacitor C2 are grounded；The second crystal oscillator electricity Road includes one end of crystal oscillator Y3, nonpolarity capacitor C3 and nonpolar capacitor C4, the crystal oscillator Y3 and one end of nonpolar capacitor C3 It is connect with the 12nd pin of ARM microprocessor U1, one end of the other end of the crystal oscillator Y3 and nonpolar capacitor C4 are and ARM The 13rd pin of microprocessor U1 connects, and the other end of the other end of the nonpolarity capacitor C3 and nonpolar capacitor C4 connect Ground；First reset circuit includes polar capacitor C5 and resistance R1, the cathode of the polar capacitor C5 and one end of resistance R1 It is connect with the 14th pin of ARM microprocessor U1, the anode and the 3.3V of usb circuit module 3 of the polar capacitor C5 Voltage output end connection, the other end ground connection of the resistance R1.

In the present embodiment, as shown in figure 4, the first Zigbee wireless communication module 4 includes model CC2530's The VCC pin of ZigBee wireless communication module U3, the ZigBee wireless communication module U3 and usb circuit module 3 The connection of 3.3V voltage output end, the GND pin ground connection of the ZigBee wireless communication module U3, the ZigBee radio communication mold The TX pin of block U3 is connect with the 26th pin of ARM microprocessor U1, the RX pin of the ZigBee wireless communication module U3 with The 25th pin of ARM microprocessor U1 connects.

In the present embodiment, as shown in figure 5, the power circuit block 8 includes 5V charged lithium cells 8-1 and is opened by power supply Close 5V to the 3.3V voltage conversion circuit 8-2 that 8-3 is connect with the output end of 5V charged lithium cells 8-1；5V to the 3.3V voltage Conversion circuit 8-2 includes voltage-stablizer U12, nonpolar capacitor C18, nonpolarity capacitor C19 and the polar capacitor of model AMS1117 One end of the Vin pin of C20, the voltage-stablizer U12 and nonpolar capacitor C18 pass through power switch 8-3 and 5V charging lithium electricity The output end of pond 8-1 connects, the GND pin of the voltage-stablizer U12, the other end of nonpolar capacitor C18, nonpolar capacitor C19 One end and the cathode of polar capacitor C20 be grounded, the Vout pin of the voltage-stablizer U12 is another with nonpolar capacitor C19's The anode of end and polar capacitor C20 are all connected with, and are the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit 8-2.

In the present embodiment, as shown in fig. 6, second micro controller module 7 includes model STM32F103VET6's ARM microprocessor U11 and the third crystal oscillating circuit to connect with ARM microprocessor U11, the 4th crystal oscillating circuit and second reset electricity Road, the 11st pin, the 28th pin, the 50th pin, the 75th pin and the 100th pin of the ARM microprocessor U11 are arrived with 5V The 3.3V voltage output end of 3.3V voltage conversion circuit 8-2 connects, and the 10th pin of the ARM microprocessor U11, the 27th are drawn Foot, the 49th pin, the 74th pin and the 99th pin are grounded；The third crystal oscillating circuit includes crystal oscillator Y4, crystal oscillator Y5, nonpolarity Capacitor C11 and nonpolar capacitor C12, one end of one end of the crystal oscillator Y4, one end of crystal oscillator Y5 and nonpolar capacitor C11 with The 8th pin of ARM microprocessor U11 connects, the other end of the crystal oscillator Y4, the other end of crystal oscillator Y5 and nonpolar capacitor C12 One end connect with the 9th pin of ARM microprocessor U11, the other end and nonpolar capacitor of the nonpolarity capacitor C11 The other end of C12 is grounded；4th crystal oscillating circuit includes crystal oscillator Y6, nonpolarity capacitor C14 and nonpolar capacitor C15, institute One end of one end and nonpolar capacitor C14 for stating crystal oscillator Y6 is connect with the 92nd pin of ARM microprocessor U11, the crystal oscillator One end of the other end of Y6 and nonpolar capacitor C15 are connect with the 93rd pin of ARM microprocessor U11, the nonpolarity electricity The other end of the other end and nonpolar capacitor C15 that hold C14 is grounded；Second reset circuit include polar capacitor C16 and The cathode of resistance R8, the polar capacitor C16 and one end of resistance R8 are connect with the 14th pin of ARM microprocessor U11, institute The anode for stating polar capacitor C16 is connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit 8-2, the resistance R8's Other end ground connection.

In the present embodiment, as shown in fig. 7, the 2nd Zigbee wireless communication module 9 includes model CC2530's VCC pin and 5V to 3.3V voltage the conversion electricity of ZigBee wireless communication module U13, the ZigBee wireless communication module U13 The 3.3V voltage output end of road 8-2 connects, the GND pin ground connection of the ZigBee wireless communication module U13, the ZigBee without The TX pin of line communication module U13 is connect with the 26th pin of ARM microprocessor U11, the ZigBee wireless communication module U13 RX pin connect with the 25th pin of ARM microprocessor U11.

In the present embodiment, as shown in figure 8, the fingerprint identification module 10 includes fingerprint identification module MR608, the fingerprint The 1st pin of identification module MR608 and the 3rd pin connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit 8-2 It connects, the 2nd pin of the fingerprint identification module MR608 is connect with the 63rd pin of ARM microprocessor U11, the fingerprint recognition The 4th pin of module MR608 is connect with the 69th pin of ARM microprocessor U11, and the 5th of the fingerprint identification module MR608 is drawn Foot is connect with the 68th pin of ARM microprocessor U11, the 6th pin ground connection of the fingerprint identification module MR608.

When it is implemented, fingerprint identification module 10 can be used in the acquisition of student's finger print information, for the identity of student It identifies and attends class and register.

In the present embodiment, the voice collecting circuit module 11 includes sequentially connected sound pick-up 11-1, signal amplification electricity Road 11-2 and filter circuit 11-3；As shown in figure 9, the signal amplification circuit 11-2 includes nonpolar capacitor C21, nonpolarity electricity Hold C22, nonpolar capacitor C23, resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26 and resistance R27, And model is the operational amplifier VR1 and operational amplifier VR2 of LM358；One end of the resistance R21 and resistance R22's One end is connect with the anode of sound pick-up 11-1, and the other end of the resistance R21 and the output end of 5V charged lithium cells 8-1 connect It connects, and is grounded by nonpolarity capacitor C21, the 2nd pin of the operational amplifier VR1 is connect with the other end of resistance R22, institute The 3rd pin for stating operational amplifier VR1 is connect by resistance R24 with the 1st pin of operational amplifier VR1, and with resistance R23's The other end of one end connection, the resistance R23 is grounded by nonpolarity capacitor C22, the 8th pin of the operational amplifier VR1 It is connect with the output end of 5V charged lithium cells 8-1, the 4th pin ground connection of the operational amplifier VR1, the operational amplifier The 2nd pin of VR2 is connect by resistance R25 with the 1st pin of operational amplifier VR1, and the 3rd of the operational amplifier VR2 is drawn Foot is connect by resistance R27 with the 1st pin of operational amplifier VR2, and is connect with one end of resistance R26, the resistance R26's The other end is grounded by nonpolarity capacitor C23, the output of the 8th pin and 5V charged lithium cells 8-1 of the operational amplifier VR2 End connection, the 4th pin ground connection of the operational amplifier VR2, the 1st pin of the operational amplifier VR2 are signal amplification electricity The signal output end VOI of road 11-2；As shown in Figure 10, the filter circuit 11-3 includes operational amplifier NE5532, nonpolarity Capacitor C24, nonpolar capacitor C26, resistance R28, resistance R29, resistance R30 and resistance R31, one end of the resistance R28 and letter The signal output end VOI connection of number amplifying circuit 11-2, the other end of the resistance R28 are connect with one end of resistance R29, and logical It crosses nonpolarity capacitor C24 to connect with the 1st pin of operational amplifier NE5532, the 2nd pin of the operational amplifier NE5532 It connect with the other end of resistance R29, and is grounded by nonpolarity capacitor C26, the 3rd pin of the operational amplifier NE5532 is logical Resistance R30 ground connection is crossed, and is connect by resistance R31 with the 1st pin of operational amplifier NE5532, the operational amplifier The 1st pin of NE5532 is connect with the 34th pin of ARM microprocessor U11, the 8th pin of the operational amplifier NE5532 with The output end of 5V charged lithium cells 8-1 connects, the 4th pin ground connection of the operational amplifier NE5532.

When it is implemented, voice collecting circuit module 11 can be used in acquiring the voice messaging of student individual, for The online voice asked questions of student improve the interactivity for admiring teaching.

In the present embodiment, as shown in figure 11, the key circuit module 12 includes key K1 and resistance R9, the key K1 One end connect with the 33rd pin of ARM microprocessor U11, the other end of the key K1 is grounded by resistance R9.

It raises one's hand to put question to when it is implemented, key circuit module 12 can be used in the online of student.

The course of work of the utility model is: when carrying out admiring teaching, PC machine 1 is connect with Internet network, is opened The projector 5 for playing instructional video picture and the stereo set 6 for playing teaching voice of 1 output end of PC machine connection, Select online course；First micro controller module 2 and the first Zigbee to connect with the first micro controller module 2 are wirelessly communicated Module 4 is connected to the USB interface of PC machine 1 by usb circuit module 3.

The student of teaching is admired before admiring class course and starting, and first the fingerprint identification module at teaching device individual end is admired in operation 10, it carries out course and registers；Admire in class course, student's operation button circuit module 12 carries out raising one's hand to put question to；Voice collecting circuit mould Block 11 can acquire the voice question information of student, be output in the second micro controller module 7, then be wirelessly communicated by Zigbee Voice question information is wirelessly transmitted to the first micro controller module 2 by module, thus by connecting with the first micro controller module 2 PC machine 1 be transferred to Internet network, so that online teacher is obtained the asked questions of student, effectively increase and admire the mutual of class classroom Dynamic property makes to admire teaching and reality is imparted knowledge to students and is more nearly.

The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model, all According to any simple modification to the above embodiments of the utility model technical spirit, change and equivalent structural changes, still Belong in the protection scope of technical solutions of the utility model.

Claims

1. a kind of admire teaching device based on Internet of Things, it is characterised in that: including be arranged in front in classroom teaching end and Multiple personal ends being mounted on desktop；

The teaching end includes the PC machine (1) being connected in Internet network and by usb circuit module (3) and PC machine (1) the first micro controller module (2) to connect, and the first Zigbee channel radio to connect with the first micro controller module (2) Believe module (4)；The output of the PC machine (1) is terminated with the projector (5) for playing instructional video picture and teaches for playing Learn the stereo set (6) of voice；

The individual end includes the second micro controller module (7) and the power circuit block for electricity consumption module for power supply each in personal end (8), and with the second micro controller module (7) connect and for wireless with teaching the first Zigbee wireless communication module (4) of end The 2nd Zigbee wireless communication module (9) connected and communicated；The input of second micro controller module (7) is terminated with fingerprint Identification module (10), voice collecting circuit module (11) and key circuit module (12).

A kind of teaching device is admired based on Internet of Things 2. described in accordance with the claim 1, it is characterised in that: the USB interface Circuit module (3) includes USB joint J1, light emitting diode D3, light emitting diode D4, power supply chip CN3062, PNP type triode TIP42C, polar capacitor CE3, polar capacitor CE4, polar capacitor CE5, polar capacitor CE6, nonpolar capacitor C25, resistance R11, Resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, two-way Transient Suppression Diode TVS1 and two-way Transient Suppression Diode TVS2 and model are the linear voltage regulator TC1 and linear voltage regulator TC2 of TL431； The 1st pin of the USB joint J1, the anode of polar capacitor CE3, one end of nonpolar capacitor C25, resistance R11 one end and One end of resistance R12 is connect with the 4th pin of power supply chip CN3062, the 5th pin, the polar capacitor of the USB joint J1 The other end of the cathode of CE3 and nonpolar capacitor C25 are grounded, the other end of the resistance R11 and the sun of light emitting diode D3 Pole connection, the other end of the resistance R12 are connect with the anode of light emitting diode D4, the cathode and electricity of the light emitting diode D3 The 6th pin of source chip CN3062 connects, the 7th pin phase of the cathode and power supply chip CN3062 of the light emitting diode D4 It connects, the 2nd pin of the USB joint J1 is connect with one end of two-way Transient Suppression Diode TVS1, and the two-way transient state inhibits The other end of diode TVS1 be usb circuit module (3) the first data communication end PB10, the 3rd of the USB joint J1 the Pin is connect with one end of two-way Transient Suppression Diode TVS2, and the other end of the two-way Transient Suppression Diode TVS2 is Second data communication end PB11 of usb circuit module (3), the 1st pin and the 3rd pin of the power supply chip CN3062 are equal Ground connection, the 2nd pin of the power supply chip CN3062 are grounded by resistance R13, the 5th pin of the power supply chip CN3062, 8th pin, the anode of polar capacitor CE4, one end of resistance R14 and polar capacitor CE5 anode with triode TIP42C's Emitter connection, the cathode of the polar capacitor CE4 and the cathode of polar capacitor CE5 are grounded, the triode TIP42C's One end of base stage, the other end of resistance R14 and resistance R15 is connect with the 3rd pin of linear voltage regulator TC1, described linear steady The 1st pin of depressor TC1 and the other end of resistance R15 are connect with the 3rd pin of linear voltage regulator TC2, the linear voltage stabilization The 2nd pin of device TC1 is grounded by resistance R16, the 1st pin of the linear voltage regulator TC1, resistance R18 one end with electricity Hinder one end connection of R17, the anode of the collector of the triode TIP42C and the other end of resistance R17 and polar capacitor CE6 It is all connected with, and is the 3.3V voltage output end of usb circuit module (3), the 2nd pin, the resistance of the linear voltage regulator TC2 The other end of R18 and the cathode of polar capacitor CE6 are grounded.

3. a kind of according to claim 2 admire teaching device based on Internet of Things, it is characterised in that: first micro-control Device module (2) processed include the ARM microprocessor U1 of model STM32F103VET6 and connect with ARM microprocessor U1 One crystal oscillating circuit, the second crystal oscillating circuit and the first reset circuit, the 11st pin, the 28th pin, of the ARM microprocessor U1 50 pins, the 75th pin and the 100th pin are connect with the 3.3V voltage output end of usb circuit module (3), the ARM The 10th pin, the 27th pin, the 49th pin, the 74th pin and the 99th pin of microprocessor U1 is grounded, the ARM micro process The 47th pin of device U1 is connect with the first data communication end PB10 of usb circuit module (3), the ARM microprocessor U1 The 48th pin connect with the second data communication end PB11 of usb circuit module (3)；First crystal oscillating circuit includes crystalline substance Shake Y1, crystal oscillator Y2, nonpolarity capacitor C1 and nonpolar capacitor C2, one end of the crystal oscillator Y1, one end of crystal oscillator Y2 and nonpolarity One end of capacitor C1 is connect with the 8th pin of ARM microprocessor U1, the other end of the other end of the crystal oscillator Y1, crystal oscillator Y2 Connect with the 9th pin of ARM microprocessor U1 with one end of nonpolar capacitor C2, the other end of the nonpolarity capacitor C1 and The other end of nonpolar capacitor C2 is grounded；Second crystal oscillating circuit includes crystal oscillator Y3, nonpolarity capacitor C3 and nonpolarity electricity Hold C4, one end of the crystal oscillator Y3 and one end of nonpolarity capacitor C3 are connect with the 12nd pin of ARM microprocessor U1, described One end of the other end of crystal oscillator Y3 and nonpolar capacitor C4 are connect with the 13rd pin of ARM microprocessor U1, the nonpolarity The other end of the other end of capacitor C3 and nonpolar capacitor C4 are grounded；First reset circuit includes polar capacitor C5 and electricity R1 is hindered, the cathode of the polar capacitor C5 and one end of resistance R1 are connect with the 14th pin of ARM microprocessor U1, the pole Property capacitor C5 anode being connect with the 3.3V voltage output end of usb circuit module (3), another termination of the resistance R1 Ground.

A kind of teaching device is admired based on Internet of Things 4. described in accordance with the claim 3, it is characterised in that: described first Zigbee wireless communication module (4) includes the ZigBee wireless communication module U3 of model CC2530, the ZigBee channel radio The VCC pin of letter module U3 is connect with the 3.3V voltage output end of usb circuit module (3), the ZigBee wireless communication The GND pin of module U3 is grounded, the TX pin of the ZigBee wireless communication module U3 and the 26th pin of ARM microprocessor U1 Connection, the RX pin of the ZigBee wireless communication module U3 are connect with the 25th pin of ARM microprocessor U1.

A kind of teaching device is admired based on Internet of Things 5. described in accordance with the claim 1, it is characterised in that: the power circuit Module (8) includes 5V charged lithium cells (8-1) and is connected by the output end of power switch (8-3) and 5V charged lithium cells (8-1) 5V to the 3.3V voltage conversion circuit (8-2) connect；5V to the 3.3V voltage conversion circuit (8-2) includes model AMS1117 Voltage-stablizer U12, nonpolar capacitor C18, nonpolarity capacitor C19 and polar capacitor C20, the Vin pin of the voltage-stablizer U12 with One end of nonpolar capacitor C18 passes through power switch (8-3) and connect with the output end of 5V charged lithium cells (8-1), described steady The GND pin of depressor U12, the other end of nonpolar capacitor C18, one end of nonpolar capacitor C19 and the cathode of polar capacitor C20 It is grounded, the Vout pin of the voltage-stablizer U12 connects with the other end of nonpolar capacitor C19 and the anode of polar capacitor C20 It connects, and is the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit (8-2).

6. a kind of according to claim 5 admire teaching device based on Internet of Things, it is characterised in that: second micro-control Device module (7) processed includes the ARM microprocessor U11 of model STM32F103VET6 and connects with ARM microprocessor U11 Third crystal oscillating circuit, the 4th crystal oscillating circuit and the second reset circuit, the 11st pin of the ARM microprocessor U11, the 28th are drawn Foot, the 50th pin, the 3.3V voltage output end of the 75th pin and the 100th pin with 5V to 3.3V voltage conversion circuit (8-2) Connection, the 10th pin, the 27th pin, the 49th pin, the 74th pin and the 99th pin of the ARM microprocessor U11 are grounded； The third crystal oscillating circuit includes crystal oscillator Y4, crystal oscillator Y5, nonpolarity capacitor C11 and nonpolar capacitor C12, and the one of the crystal oscillator Y4 The one end at end, one end of crystal oscillator Y5 and nonpolar capacitor C11 is connect with the 8th pin of ARM microprocessor U11, the crystal oscillator One end of the other end of Y4, the other end of crystal oscillator Y5 and nonpolar capacitor C12 connects with the 9th pin of ARM microprocessor U11 It connects, the other end of the other end of the nonpolarity capacitor C11 and nonpolar capacitor C12 are grounded；The 4th crystal oscillating circuit packet One end of one end and nonpolar capacitor C14 for including crystal oscillator Y6, nonpolarity capacitor C14 and nonpolar capacitor C15, the crystal oscillator Y6 is equal It is connect with the 92nd pin of ARM microprocessor U11, one end of the other end of the crystal oscillator Y6 and nonpolar capacitor C15 are and ARM The 93rd pin of microprocessor U11 connects, and the other end of the other end of the nonpolarity capacitor C14 and nonpolar capacitor C15 are equal Ground connection；Second reset circuit includes the cathode and resistance R8 of polar capacitor C16 and resistance R8, the polar capacitor C16 One end is connect with the 14th pin of ARM microprocessor U11, and anode and 5V to the 3.3V voltage of the polar capacitor C16 is converted The 3.3V voltage output end of circuit (8-2) connects, the other end ground connection of the resistance R8.

7. a kind of according to claim 6 admire teaching device based on Internet of Things, it is characterised in that: described second Zigbee wireless communication module (9) includes the ZigBee wireless communication module U13 of model CC2530, the ZigBee channel radio The VCC pin of letter module U13 is connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit (8-2), the ZigBee The GND pin of wireless communication module U13 is grounded, the TX pin and ARM microprocessor of the ZigBee wireless communication module U13 The 26th pin of U11 connects, the RX pin of the ZigBee wireless communication module U13 and the 25th pin of ARM microprocessor U11 Connection.

8. a kind of according to claim 6 admire teaching device based on Internet of Things, it is characterised in that: the fingerprint recognition Module (10) includes fingerprint identification module MR608, and the 1st pin and the 3rd pin of the fingerprint identification module MR608 is arrived with 5V The 3.3V voltage output end of 3.3V voltage conversion circuit (8-2) connects, the 2nd pin and ARM of the fingerprint identification module MR608 The 63rd pin of microprocessor U11 connects, and the of the 4th pin of the fingerprint identification module MR608 and ARM microprocessor U11 The connection of 69 pins, the 5th pin of the fingerprint identification module MR608 is connect with the 68th pin of ARM microprocessor U11, described The 6th pin of fingerprint identification module MR608 is grounded.

9. a kind of according to claim 6 admire teaching device based on Internet of Things, it is characterised in that: the voice collecting Circuit module (11) includes sequentially connected sound pick-up (11-1), signal amplification circuit (11-2) and filter circuit (11-3)；Institute Stating signal amplification circuit (11-2) includes nonpolar capacitor C21, nonpolar capacitor C22, nonpolar capacitor C23, resistance R21, electricity Resistance R22, resistance R23, resistance R24, resistance R25, resistance R26 and resistance R27 and model are the operational amplifier of LM358 VR1 and operational amplifier VR2；One end of the resistance R21 and one end of resistance R22 connect with the anode of sound pick-up (11-1) It connects, the other end of the resistance R21 is connect with the output end of 5V charged lithium cells (8-1), and is connect by nonpolarity capacitor C21 2nd pin on ground, the operational amplifier VR1 is connect with the other end of resistance R22, the 3rd pin of the operational amplifier VR1 It is connect by resistance R24 with the 1st pin of operational amplifier VR1, and is connect with one end of resistance R23, the resistance R23's is another One end is grounded by nonpolarity capacitor C22, the output of the 8th pin and 5V charged lithium cells (8-1) of the operational amplifier VR1 End connection, the 4th pin ground connection of the operational amplifier VR1, the 2nd pin of the operational amplifier VR2 by resistance R25 with The 1st pin of operational amplifier VR1 connects, and the 3rd pin of the operational amplifier VR2 passes through resistance R27 and operational amplifier The 1st pin of VR2 connects, and connect with one end of resistance R26, and the other end of the resistance R26 is connect by nonpolarity capacitor C23 8th pin on ground, the operational amplifier VR2 is connect with the output end of 5V charged lithium cells (8-1), the operational amplifier The 4th pin of VR2 is grounded, and the 1st pin of the operational amplifier VR2 is the signal output end of signal amplification circuit (11-2) VOI；The filter circuit (11-3) includes operational amplifier NE5532, nonpolar capacitor C24, nonpolar capacitor C26, resistance R28, resistance R29, resistance R30 and one end of resistance R31, the resistance R28 and the signal of signal amplification circuit (11-2) export VOI connection is held, the other end of the resistance R28 is connect with one end of resistance R29, and is put by nonpolarity capacitor C24 with operation The 1st pin connection of big device NE5532, the 2nd pin of the operational amplifier NE5532 are connect with the other end of resistance R29, and It is grounded by nonpolar capacitor C26, the 3rd pin of the operational amplifier NE5532 is grounded by resistance R30, and passes through resistance R31 is connect with the 1st pin of operational amplifier NE5532, the 1st pin and ARM microprocessor of the operational amplifier NE5532 The 34th pin of U11 connects, and the 8th pin of the operational amplifier NE5532 and the output end of 5V charged lithium cells (8-1) connect It connects, the 4th pin ground connection of the operational amplifier NE5532.

10. a kind of according to claim 6 admire teaching device based on Internet of Things, it is characterised in that: the key electricity Road module (12) includes key K1 and resistance R9, and one end of the key K1 is connect with the 33rd pin of ARM microprocessor U11, The other end of the key K1 is grounded by resistance R9.