CN202650289U - Wisdom classroom cloud terminal based on Internet of things - Google Patents
Wisdom classroom cloud terminal based on Internet of things Download PDFInfo
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- CN202650289U CN202650289U CN 201220341773 CN201220341773U CN202650289U CN 202650289 U CN202650289 U CN 202650289U CN 201220341773 CN201220341773 CN 201220341773 CN 201220341773 U CN201220341773 U CN 201220341773U CN 202650289 U CN202650289 U CN 202650289U
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Abstract
The utility model discloses a wisdom classroom cloud terminal based on Internet of things, which comprises an IO controller for controlling a classroom multimedia teaching device; a CPU motherboard for classroom interaction and paperless examination, and a wireless router core board for providing access to an external wireless device; wherein the communication ports of the IO controller, the wireless router core board and the CPU board are connected by a flexible flat cable. The IO controller is used to control the classroom multimedia teaching device, the wireless router core board is connected with wireless peripherals by a first ZigBee module and a WiFi expansion board, and the CPU motherboard is used to control a ZigBee hand-held terminal by a second ZigBee module, therefore the multimedia teaching device, a computer assistant teaching device and the technology of the Internet of things are deeply combined to realize the real significant interaction, network teaching, intelligent management of various teaching devices and improve the teaching quality and efficiency.
Description
Technical field
The utility model relates to a kind of multimedia teaching facility, relates in particular to a kind of wisdom classroom cloud terminal based on Internet of Things.
Background technology
Multimedia teaching is to develop along two different clues: one is take model, chart and based on the audio-visual media such as the projection of audio visual technology, magic lantern, recording, video recording and combination (compound media) thereof the audio-visual instruction as feature, although it emphasizes " to hark " with " audiovisual " replacement, but basically, this audio-visual instruction is the teaching of approval Traditional Classroom; Another is the computer-aided instruction that develops on programmed instruction of learning basis, and its original intention is to implement individualized instruction, but at present also just the multimedia of extensive style, scattered formula be used for teaching, add at most a campus area network.
The tradition multi-media control system, general integrated video switches and simple manual power control.Such as Wei Kemu scientific ﹠ technical corporation, the Linking All Classes all-in-one that Shanghai Five Fingers Peak enterprise provides, although integrated advanced short out-of-focus projection instrument, electronic whiteboard etc., but also just only be that middle control and PC that multimedia is switched are integrated, multimedia education system, Internet technology, advanced computer aided instruction system and the technology of Internet of things that recently occurs are not carried out degree of depth combination, do not realize interactive, networked teaching and the various teaching equipments of intelligent management of real meaning, improve the quality of teaching and efficient.
The utility model content
Technical problem to be solved in the utility model provides a kind of wisdom classroom cloud terminal based on Internet of Things, with multimedia teaching facility, advanced computer-aided instruction equipment and the technology of Internet of things that recently occurs carry out degree of depth combination, realize the interactive of real meaning, networked teaching, and the various teaching equipments of intelligent management, improve the quality of teaching and efficient.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to provide a kind of wisdom classroom cloud terminal based on Internet of Things, comprising:
The IO controller: input end links to each other with matrix press-key, potentiometer knob, and an output terminal links to each other with the audio frequency and video change-over switch, and another output terminal links to each other with audio amplifier by volume adjuster, control classroom multimedia teaching facility;
Cpu motherboard: an IO port links to each other with handheld electronic teacher's pointer, electronic whiteboard, and another IO port links to each other with the ZigBee handheld terminal by the 2nd ZigBee module, carries out classroom interaction and with no paper examination;
The wireless router core board: link to each other with campus network, an output terminal links to each other with the ZigBee peripheral hardware by a ZigBee module, and another output terminal links to each other with the WiFi peripheral hardware by the WiFi expansion board provides the access of external wireless device;
The power end of described IO controller, wireless router core board and cpu motherboard links to each other with power module, and communication ends links to each other by winding displacement.
The above-mentioned wisdom classroom cloud terminal based on Internet of Things, wherein, described IO controller adopts the Mega48 single-chip microcomputer, described wireless router core board adopts the RT3352 chip, the master chip of described cpu motherboard adopts Intel525, and a described ZigBee module and the 2nd ZigBee module adopt the CC2530 chip.
The above-mentioned wisdom classroom cloud terminal based on Internet of Things, wherein, described power module is Switching Power Supply, input 110V～220VAC, output 3.3VDC, 5VDC and 12VDC, wherein, the 12VDC output terminal is the analog switch power supply by MC34063 power supply chip output-5V; 3.3VDC output terminal links to each other with the UART mouth of RT3352 chip by behind the pull-up resistor, the 5VDC output terminal links to each other with the UART mouth of Mega48 single-chip microcomputer by behind the current-limiting resistance.
The above-mentioned wisdom classroom cloud terminal based on Internet of Things; wherein; the 12V DC output terminal of described power module links to each other with switching transistor Q1 by stabilivolt D1; the two ends of described stabilivolt D1 link to each other with the input end of photoelectric coupling disconnector K1; the output terminal of photoelectric coupling disconnector K1 links to each other with capacitor C 1 with high-voltage bidirectional TVS pipe D2, resistance R 1 and forms the surge protection loop; the positive pole of resistance R 1 one ends and diode D3 links to each other; the other end links to each other with the positive pole of diode D4, and the negative pole of diode D3, D4 is connected together.
The above-mentioned wisdom classroom cloud terminal based on Internet of Things, wherein, described ZigBee peripheral hardware comprises lamp switch controller, curtain motor controller, projector controller, air-conditioner controller and LED display controller.
The above-mentioned wisdom classroom cloud terminal based on Internet of Things, wherein, described WiFi peripheral hardware comprises panel computer and mobile phone terminal.
The above-mentioned wisdom classroom cloud terminal based on Internet of Things, wherein, described audio amplifier comprises main sound box and secondary audio amplifier, integrated 2.4G ANTENN AUDIO receives and DSP audio mixing process chip in the described main sound box.
The utility model contrast prior art has following beneficial effect: the wisdom classroom cloud terminal based on Internet of Things that the utility model provides, utilize IO controller control classroom multimedia teaching facility, the wireless router core board is connected wireless peripheral by a ZigBee module with the WiFi expansion board, cpu motherboard is by the 2nd ZigBee module controls ZigBee handheld terminal, thereby with multimedia teaching facility, advanced computer-aided instruction equipment and the technology of Internet of things that recently occurs carry out degree of depth combination, realize the interactive of real meaning, networked teaching, and the various teaching equipments of intelligent management, improve the quality of teaching and efficient.
Description of drawings
Fig. 1 is that the utility model is based on the wisdom classroom cloud terminating circuit structural representation of Internet of Things;
Fig. 2 is the utility model power module output voltage change-over circuit schematic diagram;
Fig. 3 is the utility model relay drive circuit schematic diagram.
Among the figure:
1 IO controller, 2 wireless router core board 3CPU mainboards
11 buttons, 12 audio frequency and video change-over switches, 13 potentiometer knobs
14 volume adjusters, 15 audio amplifier 21LED display screens
22 campus area networks 23 a ZigBee module 24ZigBee peripheral hardware
25 WiFi peripheral hardwares, 26 WiFi expansion board 31 the 2nd ZigBee module
32 ZigBee handheld terminals, 33 handheld electronic teacher's pointers, 34 electronic whiteboards
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 is that the utility model is based on the wisdom classroom cloud terminating circuit structural representation of Internet of Things.
See also Fig. 1, the wisdom classroom cloud terminal based on Internet of Things that the utility model provides comprises:
IO controller 1: input end links to each other with matrix press-key 11, potentiometer knob 13, and an output terminal links to each other with audio frequency and video change-over switch 12, and another output terminal links to each other with audio amplifier 15 by volume adjuster 14, control classroom multimedia teaching facility;
Cpu motherboard 3: input end links to each other with handheld electronic teacher's pointer 33, electronic whiteboard 34, and output terminal links to each other with ZigBee handheld terminal 32 by the 2nd ZigBee module 31, carries out classroom interaction and with no paper examination;
Wireless router core board 2: link to each other with campus network 22, an output terminal links to each other with ZigBee peripheral hardware 31 by a ZigBee module 23, and another output terminal links to each other with WiFi peripheral hardware 25 by WiFi expansion board 26 provides the access of external wireless device;
The power end of described IO controller 1, wireless router core board 2 and cpu motherboard 3 links to each other with power module, and communication ends links to each other by winding displacement.
The wisdom classroom cloud terminal based on Internet of Things that the utility model provides, utilize IO controller 1 control classroom multimedia teaching facility, wireless router core board 2 connects ZigBee peripheral hardware 24 by a ZigBee module 23, connect WiFi peripheral hardware 25 by WiFi expansion board 26, cpu motherboard 3 is by the 2nd ZigBee module 31 control ZigBee handheld terminals 32, and concrete advantage is as follows: 1) collection teaching electronic brain and Zigbee wireless device systems are controlled in one; Built-in syntype interactive education system and intelligent examination system; 2) realize that Zigbee, Wifi multiple network cover; 3) support campus broadcasting access, support LED screen control and urgent prediction scheme and the access of security protection burglar alarm; 4) support the sensor access, obtain environmental information by sensor, by LED display environment information.
The connection based on wisdom classroom each main modular of cloud terminal of Internet of Things that the below introduces in detail that the utility model provides is used:
1) power module
Power module selects Switching Power Supply to realize the power supply of system, and input 110VAC-250VAC exports 12V, 5V, 3.3VDC.The 12V input is 74HC4052 through MC34063 power supply chip output-5V, CD40522 and the power supply of EL4342 analog switch.3.3VDC output terminal links to each other with the UART mouth of RT3352 chip by behind the pull-up resistor R10, the 5VDC output terminal links to each other by the RXD of the UART mouth of current-limiting resistance R13 and Mega48 single-chip microcomputer, the 5VDC output terminal links to each other by the TXD of the UART mouth of current-limiting resistance R17 and Mega48 single-chip microcomputer, as shown in Figure 2.Use current-limiting resistance and pull-up resistor, stable simply again, successfully realize the reliable communication of UART between 5V and the 3.3V processor, be the most cheap solution.
A lot of peripheral hardwares in the utility model need to pass through relay control switch.Common relay, when being connected to perception, resistive load (such as various common light fixtures, motor etc.), the switch easy surge that forms of moment can form the potential pulse above 1KV during 220VAC, make relay arcing carbon distribution, is easy to damage.General RC protection, effect is also not obvious, and need to be according to load regulation capacitance-resistance value.12V DC output terminal links to each other with switching transistor Q1 by stabilivolt D1; the two ends of stabilivolt D1 link to each other with the input end of photoelectric coupling disconnector K1; the output terminal of photoelectric coupling disconnector K1 links to each other with capacitor C 1 with high-voltage bidirectional TVS pipe D2, resistance R 1 and forms the surge protection loop; the positive pole of resistance R 1 one ends and diode D3 links to each other; the other end links to each other with the positive pole of diode D4; the negative pole of diode D3, D4 is connected together (being in parallel with resistance R 1 after diode D3, D4 oppositely link to each other), as shown in Figure 3.R1, C1 are common perceptual surge protection; Diode D3(M7, the i.e. patch form of 1N4007) and D4 accelerated discharging and recharging of capacitor C 1, make the circuit surge of preventing faster; D2 is high-voltage bidirectional TVS pipe (P6KE400CA), further eliminates surge.
2) wireless router core board
Wireless router core board 2 is selected the RT3352 module, and its communication output terminal is fixed on base plate in order to expand customization by row's pin.Connect a ZigBee module 23 such as the UART1 serial ports expansion; 1 LAN mouth connects WiFi expansion board 26, Wifi and POE Wifi expansion is provided, POE (Power Over Ethernet), be also referred to as the electric power system (POL based on LAN (Local Area Network), Power over LAN) or active Ethernet (Active Ethernet), transmit data and electric power when utilizing existing standard ethernet transmission cable, and kept the compatibility with existing Ethernet system and user.WiFi peripheral hardware 25 comprises panel computer and mobile phone terminal.
3) Zigbee module
This is the telegon of Zigbee networking, adopts the CC2530 chip, power supply 3.3V.The one Zigbee module 23 is responsible for carrying out group-net communication with lamp switch controller, curtain motor controller, projector controller, air-conditioner controller and LED display controller etc.The 2nd ZigBee module 31 links to each other with ZigBee handheld terminal 32, carries out classroom interaction and with no paper examination.
4) IO controller
5) integrated 2.4G ANTENN AUDIO receives in the main sound box, the DSP audio mixing processes the broadcasting step-down of 110V/70V campus.2.4G ANTENN AUDIO receives, and communicates by letter with wireless MIC, realizes the Wireless amplification function.The DSP audio mixing is processed, and finishes the audio mixing of the audio frequency input of campus broadcasting, ANTENN AUDIO, PC.Power supply 220VAC civil power.
6) electronic whiteboard, power supply+5V is by USB mouth and PC communication.
7) electronic teacher pointer receiving unit is by USB and PC communication; Portion of the handle is by the antenna communication.Power supply is respectively USB and battery.
Although the utility model discloses as above with preferred embodiment; so it is not to limit the utility model; any those skilled in the art; within not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.
Claims (7)
1. the wisdom classroom cloud terminal based on Internet of Things is characterized in that, comprising:
IO controller (1): input end links to each other with matrix press-key (11), potentiometer knob (13), an output terminal links to each other with audio frequency and video change-over switch (12), another output terminal links to each other with audio amplifier (15) by volume adjuster (14), control classroom multimedia teaching facility;
Cpu motherboard (3): an IO port links to each other with handheld electronic teacher's pointer (33), electronic whiteboard (34), and another IO port links to each other with ZigBee handheld terminal (32) by the 2nd ZigBee module (31), carries out classroom interaction and with no paper examination;
Wireless router core board (2): link to each other with campus network (22), an output terminal links to each other with ZigBee peripheral hardware (31) by a ZigBee module (23), and another output terminal links to each other with WiFi peripheral hardware (25) by WiFi expansion board (26) provides the access of external wireless device;
Described IO controller (1), wireless router core board (2) and the power end of cpu motherboard (3) link to each other with power module, and communication ends links to each other by winding displacement.
2. the wisdom classroom cloud terminal based on Internet of Things as claimed in claim 1, it is characterized in that, described IO controller (1) adopts the Mega48 single-chip microcomputer, described wireless router core board (2) adopts the RT3352 chip, the master chip of described cpu motherboard (3) adopts Intel525, and a described ZigBee module (23) and the 2nd ZigBee module (31) adopt the CC2530 chip.
3. the wisdom classroom cloud terminal based on Internet of Things as claimed in claim 2, it is characterized in that, described power module is Switching Power Supply, input 110V～220VAC, output 3.3VDC, 5VDC and 12VDC, wherein, the 12VDC output terminal is the analog switch power supply by MC34063 power supply chip output-5V; 3.3VDC output terminal links to each other with the UART mouth of RT3352 chip by behind the pull-up resistor, the 5VDC output terminal links to each other with the UART mouth of Mega48 single-chip microcomputer by behind the current-limiting resistance.
4. the wisdom classroom cloud terminal based on Internet of Things as claimed in claim 3; it is characterized in that; the 12V DC output terminal of described power module links to each other with switching transistor Q1 by stabilivolt D1; the two ends of described stabilivolt D1 link to each other with the input end of photoelectric coupling disconnector K1; the output terminal of photoelectric coupling disconnector K1 links to each other with capacitor C 1 with high-voltage bidirectional TVS pipe D2, resistance R 1 and forms the surge protection loop; the positive pole of resistance R 1 one ends and diode D3 links to each other; the other end links to each other with the positive pole of diode D4, and the negative pole of diode D3, D4 is connected together.
5. the wisdom classroom cloud terminal based on Internet of Things as claimed in claim 1 is characterized in that, described ZigBee peripheral hardware (31) comprises lamp switch controller, curtain motor controller, projector controller, air-conditioner controller and LED display controller.
6. the wisdom classroom cloud terminal based on Internet of Things as claimed in claim 1 is characterized in that, described WiFi peripheral hardware (25) comprises panel computer and mobile phone terminal.
7. the wisdom classroom cloud terminal based on Internet of Things as claimed in claim 1 is characterized in that, described audio amplifier (15) comprises main sound box and secondary audio amplifier, and integrated 2.4G ANTENN AUDIO receives and DSP audio mixing process chip in the described main sound box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341773 CN202650289U (en) | 2012-07-13 | 2012-07-13 | Wisdom classroom cloud terminal based on Internet of things |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341773 CN202650289U (en) | 2012-07-13 | 2012-07-13 | Wisdom classroom cloud terminal based on Internet of things |
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| Publication Number | Publication Date |
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| CN202650289U true CN202650289U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220341773 Withdrawn - After Issue CN202650289U (en) | 2012-07-13 | 2012-07-13 | Wisdom classroom cloud terminal based on Internet of things |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750843A (en) * | 2012-07-13 | 2012-10-24 | 上海易教信息科技有限公司 | Smart class cloud terminal based on Internet of Things |
| CN105810033A (en) * | 2016-06-06 | 2016-07-27 | 夏明凤 | Holographic projection teaching device and system |
| CN108447323A (en) * | 2018-02-07 | 2018-08-24 | 杭州至学教育科技有限公司 | A kind of Multimedia Teaching Terminal |
| CN109218427A (en) * | 2018-09-25 | 2019-01-15 | 李昂 | A kind of intelligent multimedia instructional terminal based on Internet of Things and multimedia teaching |
-
2012
- 2012-07-13 CN CN 201220341773 patent/CN202650289U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750843A (en) * | 2012-07-13 | 2012-10-24 | 上海易教信息科技有限公司 | Smart class cloud terminal based on Internet of Things |
| CN102750843B (en) * | 2012-07-13 | 2014-04-23 | 上海易教信息科技有限公司 | Smart class cloud terminal based on Internet of Things |
| CN105810033A (en) * | 2016-06-06 | 2016-07-27 | 夏明凤 | Holographic projection teaching device and system |
| CN108447323A (en) * | 2018-02-07 | 2018-08-24 | 杭州至学教育科技有限公司 | A kind of Multimedia Teaching Terminal |
| CN109218427A (en) * | 2018-09-25 | 2019-01-15 | 李昂 | A kind of intelligent multimedia instructional terminal based on Internet of Things and multimedia teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130102 Effective date of abandoning: 20140423 |
|
| RGAV | Abandon patent right to avoid regrant |