CN108319188A - Wisdom class board manages system - Google Patents
Wisdom class board manages system Download PDFInfo
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- CN108319188A CN108319188A CN201810005508.9A CN201810005508A CN108319188A CN 108319188 A CN108319188 A CN 108319188A CN 201810005508 A CN201810005508 A CN 201810005508A CN 108319188 A CN108319188 A CN 108319188A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21137—Analog to digital conversion, ADC, DAC
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of wisdom class boards to manage system, including library server, Campus Network Server, touch screen, parent's mobile terminal, carrier server, wisdom class board controls host, loud speaker, information receiving device, CT scanner, camera, student's radio-frequency card and RF Reader, microcontroller built in wisdom class board control host, wireless transport module and power circuit, wireless transport module and power circuit are connect with microcontroller, RF Reader reads the information of student's radio-frequency card by cordless, information receiving device in-built solid state hard disk and A/D conversion modules；Power circuit includes the first inductance, bridge rectifier, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, third metal-oxide-semiconductor, first resistor, the first capacitance, the second capacitance, the first diode and DC power supply.The circuit structure of the present invention is relatively simple, trouble, the cost of saving wiring are relatively low, circuit safety and reliability is higher.
Description
Technical field
The present invention relates to wisdom class board management domain, more particularly to a kind of wisdom class board manages system.
Background technology
Current IT application in education sector is undergoing the stage of Digital Campus, Intelligent campus.More and more educational units
It adds Digital Campus and Intelligent campus builds ranks.During constantly probing into, building and implementing, establish it is powerful,
The wisdom education management platform of high scalability is accepted by numerous schools and educational unit, and management platform cans be compared to the frame in a house
Frame structure, and wisdom class board is then the window in house.The structure of the circuit part of existing wisdom class board management system is more multiple
Miscellaneous, line is more, and cost is higher.In addition, existing wisdom class board manages system due to lacking corresponding circuit protection measure, make
It is not high at the safety and reliability of circuit.
Invention content
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, provide a kind of circuit structure compared with
For simple, to save wiring trouble, cost be relatively low, the higher wisdom class board of safety and reliability of circuit manages system.
The technical solution adopted by the present invention to solve the technical problems is：A kind of wisdom class board management system is constructed, including
Library server, Campus Network Server, touch screen, parent's mobile terminal, carrier server, wisdom class board control host,
Loud speaker, information receiving device, CT scanner, camera, student's radio-frequency card and RF Reader, wisdom class board control
Microcontroller, wireless transport module and power circuit built in host, the wireless transport module and power circuit with the monolithic
Machine connect, the library server, Campus Network Server, touch screen, carrier server, loud speaker, information receiving device,
Camera and RF Reader control host communication, the operator by the wireless transport module and wisdom class board
Server is connect by wireless network with parent's mobile terminal, and the CT scanner connects with described information receiving device
It connects, the RF Reader reads the information of student's radio-frequency card by cordless, built in described information receiving device
Solid state disk and A/D conversion modules；
The power circuit includes the first inductance, bridge rectifier, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, third metal-oxide-semiconductor, the
One resistance, the first capacitance, the second capacitance, the first diode and DC power supply, one end of first inductance is respectively with described
The anode of one diode, the drain electrode of the first metal-oxide-semiconductor are connected with an input terminal of bridge rectifier, the moon of first diode
Pole is connect with the grid of first metal-oxide-semiconductor, and the source electrode of first metal-oxide-semiconductor is connect with one end of the first resistor, described
The other end of first resistor connect and connects with another input terminal of the other end of first inductance and bridge rectifier respectively
One output end on ground, the bridge rectifier is connect with one end of the DC power supply and the second capacitance respectively, and described second
The other end of capacitance is grounded, another output end of the bridge rectifier respectively with one end of first capacitance, the 2nd MOS
The drain electrode of pipe is connected with the drain electrode of third metal-oxide-semiconductor, the source grounding of the other end and the second metal-oxide-semiconductor of first capacitance, institute
The grid for stating the second metal-oxide-semiconductor is connect with the source electrode of the third metal-oxide-semiconductor, and the resistance value of the first resistor is 22k Ω, and described first
The model S-701 of diode.
In wisdom class board management system of the present invention, the power circuit further includes third capacitance, the third
One end of capacitance is connect with the grid of second metal-oxide-semiconductor, the source electrode of the other end of the third capacitance and the third metal-oxide-semiconductor
The capacitance of connection, the third capacitance is 470pF.
In wisdom class board management system of the present invention, first metal-oxide-semiconductor and the second metal-oxide-semiconductor are N-channel MOS
Pipe.
In wisdom class board management system of the present invention, the A/D conversion modules include analog power, number electricity
Source, the first photoelectrical coupler, the second photoelectrical coupler, the 8th resistance, the 9th resistance and the 8th capacitance, first photoelectric coupling
The anode of light emitting diode is connect with one end of the analog power and the 8th resistance respectively in device, first photoelectrical coupler
The cathode of middle light emitting diode is connect with the other end of the 8th resistance, one end of the 9th resistance and simulation respectively, described
The anode of light emitting diode is connect with the other end of the analog power and the 9th resistance respectively in second photoelectrical coupler, described
The cathode of light emitting diode connects simulation ground in second photoelectrical coupler, phototriode in first photoelectrical coupler
Collector is connect with the digital power, the emitter of phototriode and the 8th capacitance in first photoelectrical coupler
One end connection, another termination of the 8th capacitance digitally, the current collection of phototriode in second photoelectrical coupler
Pole connect it is described digitally, in second photoelectrical coupler emitter of phototriode connect it is described digitally, the 8th electricity
The capacitance of appearance is 450pF.
In wisdom class board management system of the present invention, the A/D conversion modules further include the 5th diode, described
The anode of 5th diode is connect with one end of the 9th resistance, and the cathode of the 5th diode connects the simulation ground,
The model E-501 of 5th diode.
In wisdom class board management system of the present invention, the A/D conversion modules further include the tenth resistance, and described
One end of ten resistance is connect with the other end of the 8th resistance, the other end of the tenth resistance and the one of the 9th resistance
The resistance value of end connection, the tenth resistance is 15k Ω.
In wisdom class board management system of the present invention, the A/D conversion modules further include eleventh resistor, described
One end of eleventh resistor is connect with the cathode of light emitting diode in second photoelectrical coupler, the eleventh resistor it is another
One end is connect with the simulation, and the resistance value of the eleventh resistor is 26k Ω.
In wisdom class board management system of the present invention, the wireless transport module be bluetooth module, WIFI module,
CDMA module, WCDMA modules, gsm module, GPRS module, Zigbee module or LoRa modules.
The wisdom class board for implementing the present invention manages system, has the advantages that：Due in wisdom class board control host
Microcontroller, wireless transport module and power circuit are set, many wiring, power circuit packet can be saved by wireless transport module
Include the first inductance, bridge rectifier, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, third metal-oxide-semiconductor, first resistor, the first capacitance, the second electricity
Appearance, the first diode and DC power supply, for the power circuit relative to traditional power module, the component used is less, this
Sample can reduce hardware cost, and first resistor is for carrying out current-limiting protection, and the first diode is for carrying out current-limiting protection, because such
Circuit structure is relatively simple, saves wiring trouble, cost is relatively low, circuit safety and reliability is higher.
Description of the drawings
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 technology 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
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram in wisdom class of the present invention board management system one embodiment；
Fig. 2 is the circuit diagram of power circuit in the embodiment；
Fig. 3 is the circuit diagram of A/D conversion modules in the embodiment.
Specific implementation mode
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 describes, 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 wisdom class of the present invention board management system embodiment, wisdom class board management system include library server 1,
Campus Network Server 2, touch screen 3, parent's mobile terminal 4, carrier server 5, wisdom class board control host 6, loud speaker 7,
Information receiving device 8, CT scanner 9, camera 10, student's radio-frequency card 11 and RF Reader 12, wherein the board control of wisdom class
Microcontroller 61, wireless transport module 62 and power circuit 63 built in host 6 processed, wireless transport module 62 and power circuit 63 with
Microcontroller 61 connects, and library server 1, Campus Network Server 2, touch screen 3, carrier server 5, loud speaker 7, information connect
Receiving unit 8, camera 10 and RF Reader 12 control host 6 by wireless transport module 62 and wisdom class board and communicate, and lead to
It crosses setting wireless transport module 62 and may dispense with many wiring, the complexity of wiring can be reduced in this way, while can also reduce
Cost, in addition, also helping the maintenance to equipment.Carrier server 5 is connect by wireless network with parent's mobile terminal 4,
Parent's mobile terminal 4 can be smart mobile phone or tablet computer etc..CT scanner 9 is connect with information receiving device 8, and radio frequency is known
Other device 12 reads the information of student's radio-frequency card 11 by cordless, and 8 in-built solid state hard disk 81 of information receiving device and A/D turn
Change the mold block 82.
Wisdom class board control host 6 can transfer the data of library server 1 and Campus Network Server 2, and be led to
It crosses wireless transport module 62 and is transmitted to touch screen 3 and shown.Wisdom class board control host 6 can be with by carrier server 5
The data such as message, video or voice are sent to parent's mobile terminal 4, loud speaker 7 is for playing video, music, notice or prompting
The scan data that CT scanner 9 is acquired Deng, information receiving device 8 simultaneously sends the board control of wisdom class to by wireless transport module 62
Host 6 processed, CT scanner 9 can realize monitoring classroom, prison for scanning the data such as students' work, photo, courseware, camera 10
Superintend and direct examination and attendance etc..
It is noted that above-mentioned wireless transport module 62 can be bluetooth module, WIFI module, CDMA module, WCDMA
Module, gsm module, GPRS module, Zigbee module or LoRa modules etc..By the way that a variety of wireless transmission methods, Ke Yiman is arranged
The demand of sufficient different user increases the flexibility used.When in particular by LoRa modules, the distance of transmission farther out, and communicates
Performance is relatively stable, is suitable for the higher occasion of QoS requirement.In practical applications, user can be according to their needs
Flexibly select corresponding wireless transmission method.Encryption data is transmitted to mobile terminal by wireless transport module 62, thus
Administrative staff are facilitated to understand monitoring situation whenever and wherever possible.
Fig. 2 is the circuit diagram of power circuit in the present embodiment, in Fig. 2, the power circuit 63 include the first inductance L1,
Bridge rectifier T, the first metal-oxide-semiconductor M1, the second metal-oxide-semiconductor M2, third metal-oxide-semiconductor M3, first resistor R1, the first capacitance C1, the second electricity
Hold C2, the first diode D1 and DC power supply VCC, wherein one end of the first inductance L1 respectively with the anode of the first diode D1,
The drain electrode of first metal-oxide-semiconductor M1 is connected with an input terminal of bridge rectifier T, the cathode and the first metal-oxide-semiconductor of the first diode D1
The grid of M1 connects, and the source electrode of the first metal-oxide-semiconductor M1 is connect with one end of first resistor R1, the other end of first resistor R1 respectively with
The other end of first inductance L1 is connected and is grounded with another input terminal of bridge rectifier T, an output of bridge rectifier T
End is connect with one end of DC power supply VCC and the second capacitance C2 respectively, the other end ground connection of the second capacitance C2, bridge rectifier T
Another output end respectively with one end of the first capacitance C1, the drain electrode of the second metal-oxide-semiconductor M2 and the drain electrode of third metal-oxide-semiconductor M2 connect
It connects, the source grounding of the other end of the first capacitance C1 and the second metal-oxide-semiconductor M2, grid and the third metal-oxide-semiconductor M3 of the second metal-oxide-semiconductor M2
Source electrode connection.
The power circuit 63 is relative to traditional power module, and the component used is less, and circuit structure is relatively simple,
Hardware cost can be reduced in this way.In addition, first resistor R1 is current-limiting resistance, for the source current of the first metal-oxide-semiconductor M1 into
Row current-limiting protection, the first diode D1 are Current Limiting Diodes, and current-limiting protection is carried out for the grid current to the first metal-oxide-semiconductor M1,
Therefore the safety and reliability of circuit is higher.It is noted that in the present embodiment, the resistance value of first resistor R1 is 22k Ω,
The model S-701 of first diode D1, certainly, in practical applications, the resistance value of first resistor R1 can be as the case may be
It adjusts accordingly, the first diode D1 can select diode of other models with similar functions.
In the present embodiment, the first inductance L1 induces alternating current by electromagnetic coupling, it is rectified after at the second ends capacitance C2
Generate DC voltage VCC.First capacitance C1 constitutes discharge loop after the second metal-oxide-semiconductor M2 conducting, and the electric current of front end is made to start pair
First capacitance C1 charges and stops making the second capacitance C2 chargings the voltage at the second both ends capacitance C2 to keep stablizing, and as loads
The supply voltage of circuit with stable.
In the present embodiment, which further includes third capacitance C3, one end of third capacitance C3 and the second metal-oxide-semiconductor M2
Grid connection, the other end of third capacitance C3 connect with the source electrode of third metal-oxide-semiconductor M3.Third capacitance C3 is coupled capacitor, is used
In preventing the interference between the second metal-oxide-semiconductor M2 and third metal-oxide-semiconductor M3, to further enhance the safety and reliability of circuit.Value
One is obtained to be mentioned that, in the present embodiment, the capacitance of third capacitance C3 is 470pF, certainly, and in practical applications, third capacitance C3
Capacitance can adjust accordingly as the case may be.
It is noted that in the present embodiment, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 are N-channel MOS pipe, certainly,
In practical applications, the first metal-oxide-semiconductor M1 and the second metal-oxide-semiconductor M2 can also be all made of P-channel metal-oxide-semiconductor, but the at this moment structure of circuit
Also it accordingly to change.
Fig. 3 is the circuit diagram of A/D conversion modules in the present embodiment, and in Fig. 3, which includes simulation
Power vd D, digital power VEE, the first photoelectrical coupler U1, the second photoelectrical coupler U2, the 8th resistance R8, the 9th resistance R9 and
8th capacitance C8, wherein in the first photoelectrical coupler U1 the anode of light emitting diode respectively with analog power VDD and the 8th resistance
One end of R8 connects, in the first photoelectrical coupler U1 the cathode of light emitting diode respectively with the other end of the 8th resistance R8, the 9th
One end of resistance R9 with simulation ground DGND connect, in the second photoelectrical coupler U2 the anode of light emitting diode respectively with analog power
The other end of VEE and the 9th resistance R9 connect, and the cathode of light emitting diode meets simulation ground EGND in the second photoelectrical coupler U2, the
The collector of phototriode is connect with digital power VEE in one photoelectrical coupler U1, photosensitive three in the first photoelectrical coupler U1
The emitter of pole pipe is connect with one end of the 8th capacitance C8, another termination of the 8th capacitance C8 digitally EGND, the second photoelectricity coupling
The collector of phototriode meets digitally DGND in clutch U2, and the emitter of phototriode connects in the second photoelectrical coupler U2
Digitally DGND.
For frequency A/D conversion modules 82 relative to traditional A/D converter circuit, the component used is less, circuit structure compared with
To be simple, hardware cost can be reduced in this way.In addition, the 8th capacitance C8 is coupled capacitor, for preventing the first photoelectrical coupler
Interference between U1 and the second photoelectrical coupler U2, further to enhance the safety and reliability of circuit.It is worth mentioning
It is that in the present embodiment, the capacitance of the 8th capacitance C8 is 450pF, certainly, in practical applications, the capacitance of the 8th capacitance C8
It can adjust accordingly as the case may be.
It is noted that the voltage that above-mentioned analog power VDD is provided is+25V, the voltage that digital power VEE is provided is+
3.3V.Frequency A/D conversion modules 82 utilize the first photoelectrical coupler U1 and the second lower spy of photoelectrical coupler U2 conducting voltages
Point, when ground DGND is simulated in input, the first photoelectrical coupler U1 and the second photoelectrical coupler U2 conductings, conducting electric current are about
1.3mA, to which the first photoelectrical coupler U1 and the second photoelectrical coupler U2 export digitally EGND.
In the present embodiment, which further includes the 5th diode D5, the anode and the 9th of the 5th diode D5
One end of resistance R9 connects, the cathode connection simulation ground of the 5th diode D5.5th diode D5 be Current Limiting Diodes, for pair
Branch between second photoelectrical coupler U2 and simulation ground DGND carries out current-limiting protection, to further enhance current limitation effect.It is worth
One is mentioned that, in the present embodiment, the model E-501 of the 5th diode D5, certainly, and in practical applications, the 5th diode D5
It can also use other models that there is the diode of similar functions.
In the present embodiment, which further includes the tenth resistance R10, one end of the tenth resistance R10 and the 8th electricity
The other end connection of R8 is hindered, the other end of the tenth resistance R10 is connect with one end of the 9th resistance R9.Tenth resistance R10 is current limliting
Resistance carries out current-limiting protection, with more into one for the branch between the first photoelectrical coupler U1 and the second photoelectrical coupler U2
Step enhancing current limitation effect.It is noted that in the present embodiment, the resistance value of the tenth resistance R10 is that 15k Ω are actually being answered certainly
In, the resistance value of the tenth resistance R10 can also adjust accordingly as the case may be.
In the present embodiment, which further includes eleventh resistor R11, one end of eleventh resistor R11 and the
The cathode connection of light emitting diode, the other end of eleventh resistor R11 are connect with simulation in two photoelectrical coupler U2.11st
Resistance R11 is current-limiting resistance, for carrying out current-limiting protection to the second photoelectrical coupler U2, to further enhance current limitation effect.Value
One is obtained to be mentioned that, in the present embodiment, the resistance value of eleventh resistor R11 is 26k Ω, certainly, and in practical applications, eleventh resistor
The resistance value of R11 can also adjust accordingly as the case may be.
In short, in the present embodiment, due to wireless transport module 62 built in wisdom class board control host 6, pass through wireless transmission
Module 62 can save many wiring, can reduce the complexity of wiring in this way, while can also reduce cost, in addition, also having
Conducive to the maintenance to equipment.In addition, the power circuit 63 is relative to traditional power module, the component used is less, electricity
Line structure is relatively simple, can reduce hardware cost in this way.Current-limiting resistance and Current Limiting Diodes are equipped in the power circuit 63, because
The safety and reliability of this circuit is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (8)
1. a kind of wisdom class board manages system, which is characterized in that including library server, Campus Network Server, touch screen, family
Long mobile terminal, carrier server, wisdom class board control host, loud speaker, information receiving device, CT scanner, camera shooting
Head, student's radio-frequency card and RF Reader, microcontroller, wireless transport module and power supply electricity built in wisdom class board control host
Road, the wireless transport module and power circuit are connect with the microcontroller, the library server, campus network service
Device, touch screen, carrier server, loud speaker, information receiving device, camera and RF Reader pass through the wireless biography
Defeated module is moved eventually with wisdom class board control host communication, the carrier server by wireless network and the parent
End connection, the CT scanner are connect with described information receiving device, and the RF Reader is read by cordless
The information of student's radio-frequency card, described information receiving device in-built solid state hard disk and A/D conversion modules；
The power circuit includes the first inductance, bridge rectifier, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, third metal-oxide-semiconductor, the first electricity
Resistance, the first capacitance, the second capacitance, the first diode and DC power supply, one end of first inductance is respectively with the described 1st
The anode of pole pipe, the drain electrode of the first metal-oxide-semiconductor are connected with an input terminal of bridge rectifier, the cathode of first diode with
The grid of first metal-oxide-semiconductor connects, and the source electrode of first metal-oxide-semiconductor is connect with one end of the first resistor, and described first
The other end of resistance connect and is grounded with another input terminal of the other end of first inductance and bridge rectifier respectively, institute
An output end for stating bridge rectifier is connect with one end of the DC power supply and the second capacitance respectively, second capacitance
The other end is grounded, another output end leakage with one end, the second metal-oxide-semiconductor of first capacitance respectively of the bridge rectifier
Pole is connected with the drain electrode of third metal-oxide-semiconductor, the source grounding of the other end and the second metal-oxide-semiconductor of first capacitance, and described second
The grid of metal-oxide-semiconductor is connect with the source electrode of the third metal-oxide-semiconductor, and the resistance value of the first resistor is 22k Ω, first diode
Model S-701.
2. wisdom class according to claim 1 board manages system, which is characterized in that the power circuit further includes third electricity
Hold, one end of the third capacitance is connect with the grid of second metal-oxide-semiconductor, the other end and the third of the third capacitance
The source electrode of metal-oxide-semiconductor connects, and the capacitance of the third capacitance is 470pF.
3. wisdom class according to claim 2 board manages system, which is characterized in that first metal-oxide-semiconductor and the second metal-oxide-semiconductor
It is N-channel MOS pipe.
4. the wisdom class board according to claims 1 to 3 any one manages system, which is characterized in that the A/D moduluss of conversion
Block includes analog power, digital power, the first photoelectrical coupler, the second photoelectrical coupler, the 8th resistance, the 9th resistance and the 8th
Capacitance, the anode of light emitting diode connects with one end of the analog power and the 8th resistance respectively in first photoelectrical coupler
Connect, in first photoelectrical coupler cathode of light emitting diode respectively with the other end of the 8th resistance, the 9th resistance
One end and the connection of simulation ground, in second photoelectrical coupler anode of light emitting diode respectively with the analog power and the 9th
The other end of resistance connects, and the cathode of light emitting diode connects the simulation ground, first light in second photoelectrical coupler
The collector of phototriode is connect with the digital power in electric coupler, phototriode in first photoelectrical coupler
Emitter connect with one end of the 8th capacitance, another termination of the 8th capacitance digitally, the second photoelectricity coupling
In clutch the collector of phototriode connect it is described digitally, the emitter of phototriode connects in second photoelectrical coupler
It is described digitally, the capacitance of the 8th capacitance is 450pF.
5. wisdom class according to claim 4 board manages system, which is characterized in that the A/D conversion modules further include the
The anode of five diodes, the 5th diode is connect with one end of the 9th resistance, and the cathode of the 5th diode connects
Meet the simulation ground, the model E-501 of the 5th diode.
6. wisdom class according to claim 5 board manages system, which is characterized in that the A/D conversion modules further include the
One end of ten resistance, the tenth resistance is connect with the other end of the 8th resistance, the other end of the tenth resistance and institute
One end connection of the 9th resistance is stated, the resistance value of the tenth resistance is 15k Ω.
7. wisdom class according to claim 6 board manages system, which is characterized in that the A/D conversion modules further include the
11 resistance, one end of the eleventh resistor is connect with the cathode of light emitting diode in second photoelectrical coupler, described
The other end of eleventh resistor is connect with the simulation, and the resistance value of the eleventh resistor is 26k Ω.
8. the wisdom class board according to claims 1 to 3 any one manages system, which is characterized in that the wireless transmission
Module is bluetooth module, WIFI module, CDMA module, WCDMA modules, gsm module, GPRS module, Zigbee module or LoRa
Module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005508.9A CN108319188A (en) | 2018-01-03 | 2018-01-03 | Wisdom class board manages system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005508.9A CN108319188A (en) | 2018-01-03 | 2018-01-03 | Wisdom class board manages system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108319188A true CN108319188A (en) | 2018-07-24 |
Family
ID=62893864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810005508.9A Pending CN108319188A (en) | 2018-01-03 | 2018-01-03 | Wisdom class board manages system |
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| Country | Link |
|---|---|
| CN (1) | CN108319188A (en) |
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| CN201298749Y (en) * | 2008-10-08 | 2009-08-26 | 深圳市宝安任达电器实业有限公司 | Automatic transfer switching electrical appliance with double phase-correction power sources |
| CN103683991A (en) * | 2013-11-28 | 2014-03-26 | 成都位时通科技有限公司 | Power supply circuit stable in power supply |
| KR20160029992A (en) * | 2014-09-05 | 2016-03-16 | 양진호 | Webhard server |
| CN106373520A (en) * | 2016-10-31 | 2017-02-01 | 江苏省锡山中等专业学校 | Intelligent controlled electronic class plate |
| CN206149322U (en) * | 2016-10-08 | 2017-05-03 | 南京合旺科技发展有限公司 | Wisdom class tablet and information issuing system |
-
2018
- 2018-01-03 CN CN201810005508.9A patent/CN108319188A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201298749Y (en) * | 2008-10-08 | 2009-08-26 | 深圳市宝安任达电器实业有限公司 | Automatic transfer switching electrical appliance with double phase-correction power sources |
| CN103683991A (en) * | 2013-11-28 | 2014-03-26 | 成都位时通科技有限公司 | Power supply circuit stable in power supply |
| KR20160029992A (en) * | 2014-09-05 | 2016-03-16 | 양진호 | Webhard server |
| CN206149322U (en) * | 2016-10-08 | 2017-05-03 | 南京合旺科技发展有限公司 | Wisdom class tablet and information issuing system |
| CN106373520A (en) * | 2016-10-31 | 2017-02-01 | 江苏省锡山中等专业学校 | Intelligent controlled electronic class plate |
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Application publication date: 20180724 |
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