CN209591148U - Wireless multiple-choice question classroom interactive system - Google Patents
Wireless multiple-choice question classroom interactive system Download PDFInfo
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- CN209591148U CN209591148U CN201821512757.9U CN201821512757U CN209591148U CN 209591148 U CN209591148 U CN 209591148U CN 201821512757 U CN201821512757 U CN 201821512757U CN 209591148 U CN209591148 U CN 209591148U
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Abstract
The utility model relates to a kind of wireless multiple-choice question classroom interactive system, including several students wirelessly answer device, teacher's wireless controller, a wireless receiver and upper computer software, can constitute complete system with teaching one-piece existing in classroom.After teacher presses START button on wireless controller, student can press ABCD option button on respective device of wirelessly answering and carry out answer, teacher's wireless controller and student wirelessly answer after device key, the wireless data packet containing key assignments and the machine address can be sent by wireless transmission unit to wireless receiver, it is finally generalized machine software reception processing, the answering information of student is shown on teaching one-piece screen.The utility model solves the problems, such as that conventional Multi Media classroom student is difficult to teacher's feedback information, and not only feedback efficiency is high, and more comprehensively and scientific, is conducive to the grasp situation that teacher accurately understands student.
Description
Technical field
The utility model relates to a kind of classroom interactive system, the wireless classroom designed in particular for multiple-choice question question and answer is handed over
Mutual system.
Background technique
Currently, middle and primary schools and colleges and universities generally realize the multimedia teaching of classroom, but the transmitting of its information be it is unidirectional,
By the way that teaching one-piece (or teaching electronic brain adds projector) is arranged in classroom, teacher, which can efficiently transmit to student, to be believed
Breath, but student is still highly difficult to teacher's feedback information.In field research, teacher would generally design some choosings in PPT
Topic is selected, then student is putd question to, there is following disadvantages for this interactive mode: 1, in order to save valuable time in classroom,
Individual student can only be generally allowed to be answered, but the grasp situation of individual student does not represent the grasp situation of school, simultaneously
Selecting which learner answering questions again has very big subjectivity and randomness, this results in teacher to be difficult to understand comprehensive and accurately
Raw receives situation.2, individual student answers a question, the covering surface of classroom interactions is small, and student's sense of participation is not strong.
Utility model content
In view of the above problems, the purpose of this utility model is to provide it is a kind of it is at low cost, classroom interactive efficiency is high,
Interaction broad covered area, can be convenient and the matching used multiple-choice question classroom interactive system of existing multimedia teaching facility.
In order to achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of wireless multiple-choice question classroom interactive system, by several students wirelessly answer device, teacher's wireless controller,
One wireless receiver and upper computer software composition, can (or teaching electronic brain adds with teaching one-piece existing in classroom
Projector) constitute a complete system.
There are tetra- option tabs of student number labeling and ABCD in student device front of wirelessly answering, it is internal by key circuit, single-chip microcontroller,
Wireless transmission unit (contain antenna), battery composition, programming has program of lower computer in single-chip microcontroller.
Teacher's wireless controller wirelessly answered with student compared with device, front mostly several control buttons but without student number mark
Patch, key circuit are increased by bond number.
It is made of inside wireless receiver wireless transmission unit (containing antenna), single-chip microcontroller, telecommunication circuit, power supply circuit, it is single
Programming has Communication processing program in piece machine, and wireless receiver is counted by its port with teaching one-piece (or teaching electronic brain)
According to transmission, port can be wired (such as serial ports, USB port), be also possible to wireless (such as WIFI, bluetooth).
Student, which wirelessly answers, all has unique identification address, phase inside device, teacher's wireless controller and wireless receiver
It is connected between mutually by wireless data link, and using the transmitting and receiving mode for preventing data packet collisions.
Upper computer software is made of data reception module, data processing module, display module, is installed and is operated in teaching one
On body machine (or teaching electronic brain).
The working principle of wireless multiple-choice question classroom interactive system are as follows:
When teacher is on teacher's wireless controller or student is when respective student wirelessly answers and presses some key on device,
Teacher's wireless controller or student wirelessly answer device can be sent by wireless transmission unit it is wireless containing key assignments and the machine address
To wireless receiver, wireless receiver is sent to after receiving to be installed and operates on teaching one-piece (or teaching electronic brain) data packet
Upper computer software, upper computer software receive after, after data processing, shown in teaching one-piece (or projector) screen
Answering information.
Utility model has the advantages that the utility model solves conventional Multi Media classroom student to teacher's feedback information
Difficult problem, full class classmate can answer a question in the same time, and feedback efficiency is greatly improved, while feedback information
More comprehensively and science, be conducive to the grasp situation that teacher accurately understands student, at the same the utility model also have structure it is simple,
Advantage at low cost, easy to implement.
Detailed description of the invention
Fig. 1 is Tthe utility model system composition figure；
Fig. 2 is that the utility model student wirelessly answers device outside drawing；
Fig. 3 is the utility model teacher wireless controller outside drawing；
Fig. 4 is the utility model wireless receiver outside drawing；
Fig. 5 is that the utility model student wirelessly answers device electrical schematic diagram；
Fig. 6 is the utility model wireless receiver electrical schematic diagram.
In figure: 1. teacher's wireless controller, 2. student wirelessly answer 3. wireless receiver of device, 4. teaching one-piece 5. receipts
Send out 6. control button of indicator light, 7. option tab, 8. student number labeling 9.USB plug U1. single-chip microcontroller U2.2.4G module.
Specific embodiment
The utility model will be further described with reference to the accompanying drawings and examples.
Embodiment 1: student's device (2) of wirelessly answering has a hand-held plastic shell, and there are student number labeling (8) and ABCD in front
Four option tabs (7) and a transmitting-receiving indicator light (5), 4 independent keys (SW1-SW4) respectively with single-chip microcontroller (U1)
The connection of IO5-IO2 foot, transmitting-receiving indicator light (LED1) are in series with current-limiting resistance (R1) and connect with the IO6 foot of single-chip microcontroller (U1), wirelessly
Transmission unit uses 2.4G module (U2), carries built-in PCB antenna, IRQ, MOSI of 2.4G module (U2), MISO, SCK,
CSN, CE foot are connected with INT, MOSI, MISO, SCK, IO0, IO1 foot of single-chip microcontroller (U1) respectively, and circuit uses zero-power
Design, therefore power switch is not needed, battery (BT1) uses CR2032 button cell, and 1-2 can be used under normal circumstances.
The student internal unique identification address of device (2) of wirelessly answering is consistent with student number labeling (8), the serial number since 1.
Teacher's wireless controller (1) wirelessly answered with student compared with device (2), front mostly several control buttons (6) but
Without student number labeling (8), control button (6) has " beginning ", " end ", " details ", " position ", " answer ", " hiding " 6 keys,
Due to increasing by bond number, need to occupy single-chip microcontroller (U1) more I/O resources.The internal unique identification of teacher's wireless controller (1)
Location is fixed as 0.
For wireless receiver (3) shape similar to a USB flash disk, there are a USB plug (9), for communicating and powering, shell in one end
It is upper that there are one receive and dispatch indicator light (5).Transmitting-receiving indicator light (LED1) is in series with current-limiting resistance (R1) and the IO2 foot of single-chip microcontroller connects
Connect, wireless transmission unit uses 2.4G module, carry built-in PCB antenna, IRQ, MOSI of 2.4G module (U2), MISO, SCK,
CSN, CE foot are connected with INT, MOSI, MISO, SCK, IO0, IO1 foot of single-chip microcontroller (U1) respectively, 2,3 feet of USB plug (P1)
It is connected with D-, D+ foot of single-chip microcontroller, 1,4 feet are supply pin.The internal unique identification address of wireless receiver (3) is 255.
Upper computer software is write by VB or JAVA language, is previously installed on teaching one-piece (4), while also needing to install
USB device driver.
In order to avoid data packet collisions caused by multiple students simultaneously key, what the present embodiment used prevents data packet collisions
Transmitting and receiving mode, similar token-ring network, specific implementation are as follows: student wirelessly answers device (2) and teacher's wireless controller (1)
As slave, wireless receiver (3) is used as host, forms one master and multiple slaves wireless network, and host successively gives all slaves to send system
It unites unique token, the transmission of token is Rapid Circulation, when slave is had by key pressing, needs first to inquire whether the machine possesses order
Board, if any, then send data packet, otherwise need to wait until obtain token can send, the cycle period of token be designed foot
It is enough short, to guarantee the real-time of system.
The course of work of whole system is as follows:
Wireless receiver (3) is inserted into the USB port of teaching one-piece (4), upper computer software, teaching one-piece are started
(4) there is starting welcome interface, later automatic minimum in screen, has an impact to avoid to normal multimedia teaching.
In teaching process, teacher first passes through PPT and shows one of multiple-choice question, presses on teacher's wireless controller (1) later
Under " beginning " key, this actuation of keys wakes up single-chip microcontroller first, check whether the machine possesses token later, as without if waiting until
Possess token, when the machine possesses token, the wireless data packet containing key assignments and the machine address is sent to nothing by 2.4G module
Line receiver (3), wireless receiver (3) passes through USB port (9) and sends upper computer software to after receiving, after upper computer software receives,
After data processing, automatic spring upper computer software main interface on the screen shows that answer state is " to start on the surface
Answer ", and show time for having passed, at this time student can wirelessly be answered by respective student device (2) carry out answer,
When student presses some key in tetra- option tabs (7) of ABCD, the wireless data packet containing key assignments and the machine address can be with
Same mode is transmitted to upper computer software, after data processing, shown in the main interface popped up how many
Classmate's answer, how many classmate have modified answer, the also non-answer of how many classmate；When pressing " end " on teacher's wireless controller (1)
When key, student's key again, remains to issue data packet, but upper computer software makees packet loss processing, shows answer in main interface at this time
State is " answer has terminated ", while increasing display content, further displays the selection number of ABCD the respective option, when teacher without
When pressing " details " key on lane controller (1), details page also will pop up, show optant's list of ABCD the respective option, column
Table information is arranged by answer precedence, and every information includes student number, name, used time, modification number etc., is called the roll convenient for teacher,
The reasons why understanding student's selection, presses " details " key again, can close details page.It is pressed when on teacher's wireless controller (1)
" answer " key, later when pressing one in tetra- keys of ABCD, red chooses the correct option in main interface, shows simultaneously
Accuracy.
When pressing " hiding " key on teacher's wireless controller (1), main interface window is minimized.When teacher's wireless control
When constantly pressing " position " key on device (1), main interface the window's position converts in turn in 4 corners of screen.
When teacher's wireless controller (1), student wirelessly answer device (2) and wireless receiver (3) has data transmit-receive, transmitting-receiving
Indicator light (5) can be of short duration glittering.When teacher's wireless controller (1), student wirelessly answer device (2) free time, it is in suspend mode automatically
State.
Embodiment 2: in order to avoid data packet collisions caused by multiple students simultaneously key, what the present embodiment used prevents from counting
According to the transmitting and receiving mode of packet conflict, similar Ethernet, specific implementation are as follows: student wirelessly answers device (2) and teacher's wireless control
Device (1) is used as slave, and wireless receiver (3) is used as host, forms one master and multiple slaves wireless network, the upload number of slave to host
2 different channels are used according to the data that issue with host to slave, when slave is had by key pressing, data packet is sent immediately, sends
After wait host to return to the response bag of " having received ", if at the appointed time without response, when one section of delay is random
Between after, repeat to send former data packet, until obtaining response of host.
The wireless transmission unit of wireless receiver (3) uses external antenna.Other are the same as embodiment 1.
Embodiment 3: wireless transmission unit uses the ZIGBEE module containing system on chip, and wireless receiver (3) is integrated into
In teaching one-piece (4), removal wireless receiver (3) in single-chip microcontroller, communicating circuit and communication port, ZIGBEE module directly and
The connection of teaching one-piece internal interface.Other are the same as embodiment 1.
It should be noted that above-mentioned is only several preferred embodiments of the utility model, not it is used to limit practical
Novel protection scope, made equivalents belong to the protection scope of the utility model on the basis of the above embodiments.
Claims (6)
1. a kind of wireless multiple-choice question classroom interactive system, it is characterised in that: by several students wirelessly answer device, a teacher without
Lane controller, a wireless receiver and upper computer software composition, can be constituted with teaching one-piece existing in classroom
One complete system；
There are tetra- option tabs of student number labeling and ABCD in student device front of wirelessly answering, and inside is by key circuit, monolithic
Machine, wireless transmission unit, battery composition, programming has program of lower computer in single-chip microcontroller；
Teacher's wireless controller is compared with student wirelessly answers device, front mostly several control buttons but without student number mark
Patch, key circuit are increased by bond number；
It is made of inside the wireless receiver wireless transmission unit, single-chip microcontroller, telecommunication circuit, power supply circuit, in single-chip microcontroller
Programming has Communication processing program, and wireless receiver is carried out data transmission by its port with teaching one-piece, and port can be with
Be it is wired, be also possible to wireless；
Student, which wirelessly answers, all has unique identification address inside device, teacher's wireless controller and wireless receiver, mutually it
Between connected by wireless data link, and using preventing the transmitting and receiving modes of data packet collisions；
The upper computer software is made of data reception module, data processing module, display module, is installed and is operated in teaching
On all-in-one machine.
2. wireless multiple-choice question classroom interactive system according to claim 1, it is characterised in that: wireless transmission unit removes antenna
System on chip can be integrated into single-chip microcontroller outside.
3. wireless multiple-choice question classroom interactive system according to claim 1, it is characterised in that: wireless transmission unit uses
2.4G module.
4. wireless multiple-choice question classroom interactive system according to claim 1, it is characterised in that: wireless transmission unit uses
ZIGBEE module.
5. wireless multiple-choice question classroom interactive system according to claim 1, it is characterised in that: the antenna of wireless transmission unit
Built-in antenna or external antenna can be used.
6. wireless multiple-choice question classroom interactive system according to claim 3 or 4, it is characterised in that: wireless receiver can be with
Be integrated into teaching one-piece, remove wireless receiver in single-chip microcontroller, communicating circuit and communication port, 2.4G module or
ZIGBEE module is directly connected with teaching one-piece internal interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512757.9U CN209591148U (en) | 2018-09-17 | 2018-09-17 | Wireless multiple-choice question classroom interactive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512757.9U CN209591148U (en) | 2018-09-17 | 2018-09-17 | Wireless multiple-choice question classroom interactive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209591148U true CN209591148U (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821512757.9U Expired - Fee Related CN209591148U (en) | 2018-09-17 | 2018-09-17 | Wireless multiple-choice question classroom interactive system |
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| CN (1) | CN209591148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436482A (en) * | 2020-03-23 | 2021-09-24 | 深圳市金视电子科技有限公司 | Teaching double-screen cooperation method |
-
2018
- 2018-09-17 CN CN201821512757.9U patent/CN209591148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436482A (en) * | 2020-03-23 | 2021-09-24 | 深圳市金视电子科技有限公司 | Teaching double-screen cooperation method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191105 Termination date: 20200917 |