CN203433695U - Objective question answering device based on ANT wireless communication technology - Google Patents
Objective question answering device based on ANT wireless communication technology Download PDFInfo
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- CN203433695U CN203433695U CN201320267837.3U CN201320267837U CN203433695U CN 203433695 U CN203433695 U CN 203433695U CN 201320267837 U CN201320267837 U CN 201320267837U CN 203433695 U CN203433695 U CN 203433695U
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Abstract
The utility model relates to an objective question answering device based on an ANT wireless communication technology. The objective question answering device comprises a main control unit, an input unit and a power supply unit, wherein the main control unit is used as a control center, is connected in an information interaction mode with a terminal machine used for result collection through an ANT wireless communication unit and is connected in an information interaction mode with a PC corresponding to each respondent, the input unit is used for the respondents to input a selected answer, a signal output end of the input unit is connected with a signal output end of the main control unit, and the power supply unit is used for providing power and is connected with a power input end of the main control unit. The objective question answering device based on the ANT wireless communication technology is simple in structure, high in degree of chip integration, small in size, light and portable, low in energy consumption and capable of timely feeding back learning situation of students in class to help teachers to do better in teaching. The objective question answering device based on the ANT wireless communication technology is suitable for answering various kinds of objective questions in class.
Description
Technical field
The utility model relates to a kind of objective item device for answering question, specifically a kind of objective item device for answering question based on ANT wireless communication technology.
Background technology
In process of English teaching, English Instructor can make some objective items with hall student is test in court, to improve the efficiency of study.But because the item content of objective item is generally all more, if rely on teacher's writing on the blackboard, waste time and energy; And if be printed as the waste that paper causes paper.And two kinds of above-mentioned method of testings can not reflect the accuracy of exercise question that each student does in time, need teacher to utilize the time after school to correct, therefore, can not provide student classroom learning information timely and effectively for teacher, and the exercise question that can not make student carries out explanation timely and effectively, need to wait until that next class just can explain, affect the carrying out of course, be unfavorable for understanding and the memory of student to the own exercise question that does wrong simultaneously.
Summary of the invention
In order to solve the above problems, the utility model provides a kind of objective item device for answering question based on ANT wireless communication technology, can mistake be judged timely and effectively to exercise question that each student does, the exercise question of makeing mistakes for student, teacher can explain in time, helps student to improve learning efficiency.
For achieving the above object, the technical scheme that the utility model adopts is as follows:
An objective item device for answering question for ANT wireless communication technology, comprising:
As the main control unit of control center, described main control unit by ANT wireless communication unit with carry out the terminating machine information interaction that achievement gathers and be connected, also the PC information interaction corresponding with each answer person connects simultaneously;
For the input block of answer person's input selection answer, the signal output part of described input block connects the signal output part of main control unit;
For the power supply unit of electric energy is provided, described power supply unit connects the power input of main control unit.
As to restriction of the present utility model: described main control unit adopts AT89C51 singlechip chip, and ANT wireless communication unit adopts NRF24AP2 wireless communication chips.
As another kind of the present utility model is limited: it also comprises for connecting the minusb inlet unit of main control unit and PC.
As the another kind again to utility model, limit: it also comprises that described usb interface unit is connected with main control unit for inserting the usb interface unit of answer person's identity recognizer.
As the restriction to input block: described input block adopts key-press module, described key-press module comprises the answer button of corresponding selection topic answer choice, and the judgement button of corresponding True-False right and wrong, and each button is equipped with the display lamp for showing that this option is selected when answer person presses the button of this option.
As the restriction to power supply unit: described power supply unit comprises that power supply provides module and power supply conversion module, described power supply provides the power supply of module output to send main control unit, ANT wireless communication unit to after power supply conversion module transforms, and usb interface unit.
Adopt above technical scheme, the utility model can reach following technique effect:
(1) main control unit of the present utility model, ANT wireless communication unit, usb interface unit all adopt the chip of high type, and encapsulation property is good, makes whole equipment small and exquisite convenient;
(2) the utility model adopts NRF24AP2 chip to make main control unit and terminating machine carry out radio communication as ANT wireless communication unit, can realize the closely radio communication of super low-power consumption, simultaneously, the twireless radio-frequency communication of NRF24AP2 supports a plurality of equipment to connect simultaneously, can form ad-hoc network, meet the requirement to device for answering question on English Teaching Class;
(3) the utility model is provided with USB inlet unit, and answer personnel need to be inserted into identity recognition device (for example USBKEY) in USB inlet unit and carry out after identification, just can carry out answer, have the effect to data confidentiality;
(4) the utility model is also provided with minusb socket, by minusb socket, can be connected with PC, can all be equipped with a PC to every answer person like this, and answer person can see that exercise question carries out answer by the display screen of PC.
In sum, the utility model is simple in structure, and chip integration is high, and volume is little, light portable, and energy consumption is low simultaneously, can to the study situation of student classroom, feed back in time, helps teacher better to impart knowledge to students.
The utility model is applicable to carry out the answer of various objective items on classroom.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the utility model embodiment;
Fig. 2 is the schematic diagram that in the utility model embodiment, main control unit is connected with input block;
Fig. 3 is the schematic diagram of ANT wireless communication unit in the utility model embodiment;
Fig. 4 is the schematic diagram of usb interface unit in the utility model embodiment;
Fig. 5 is the schematic diagram of power supply unit in utility model embodiment.
Embodiment
a kind of objective item device for answering question based on ANT wireless communication technology of embodiment
The objective item device for answering question based on ANT wireless communication technology of the present embodiment, as shown in Figure 1, it comprises main control unit, input block, ANT wireless communication unit, usb interface unit and power supply unit.Wherein:
(1) main control unit, adopts AT89C51 singlechip chip as control center the present embodiment, described main control unit with carry out the terminating machine information interaction that achievement gathers and be connected, the also PC information interaction connection corresponding with each answer person simultaneously.
(2) input block, for the answer of answer person's input selection, the present embodiment adopts key-press module, be provided with altogether as shown in Figure 2 nine buttons, be respectively: the first button K1, the second button K2, the 3rd button K3, the 4th button K4, the 5th button K5, the 6th button K6, the 7th button K7, the 8th button K8, the 9th button K9, to facilitate answer person that the answer of selection is inputed to main control unit, wherein K1 to the seven button K7 are corresponding option tab, difference corresponding A, B, C, D, E, F, the option of G, the 8th button K8 with the corresponding True-False answer of the 9th button K9 to wrong option, corresponding " correctly " option of the 8th button K8 wherein, the corresponding the Errors option of the 9th button K9.The two ends of the first above-mentioned button K1 connect respectively the 21 pin P2.0 and the 20 three-prong P2.2 of main control unit AT89C51; The two ends of the second button K2 connect respectively the 21 pin P2.0 and the 24 pin P2.3 of main control unit AT89C51; The two ends of the 3rd button K3 connect respectively the 21 pin P2.0 and the 25 pin P2.4 of main control unit AT89C51; The two ends of the 4th button K4 connect respectively the 21 pin P2.0, the 26 pin P2.5 of main control unit AT89C51; The two ends of the 5th button K5 connect respectively the 21 pin P2.0 and the 27 pin P2.6 of main control unit AT89C51; The two ends of the 6th button K6 connect respectively the 22 pin P2.1 and the 24 pin P2.3 of main control unit AT89C51; The two ends of the 7th button K7 connect respectively the 22 pin P2.1 and the 25 pin P2.4 of main control unit AT89C51; The two ends of the 8th button K7 connect respectively the 22 pin P2.1 and the 26 pin P2.5 of main control unit AT89C51; The two ends of the 9th button K9 connect respectively the 22 pin P2.1 and the 27 pin P2.6 of main control unit AT89C51.
For convenient, selected answer is shown, in the present embodiment, be also provided with display lamp, comprise: corresponding to the first light emitting diode DW1 of the first button K1, the second light emitting diode DW2 corresponding to the second button K2, the 3rd light emitting diode DW3 corresponding to the 3rd button K3, the 4th light emitting diode DW4 corresponding to the 4th button K4, the 5th light emitting diode DW5 corresponding to the 5th button K5, the 6th light emitting diode DW6 corresponding to the 6th button K6, the 7th light emitting diode DW7 corresponding to the 7th button K7, the 8th light emitting diode DW8 corresponding to the 8th button K8, and corresponding to the 9th light emitting diode DW9 of the 9th button K9.The first above-mentioned light emitting diode DW1 to the nine light emitting diode DW9 all accept the control of main control unit, wherein: the first pin P1.0 of the anodic bonding main control unit AT89C51 of the first light emitting diode DW1, negative electrode is by exclusion P1 connection+5V power supply; The second pin P1.1 of the anodic bonding main control unit AT89C51 of the second light emitting diode DW2, negative electrode is by exclusion P1 connection+5V power supply; The three-prong P1.2 of the anodic bonding main control unit AT89C51 of the 3rd light emitting diode DW3, negative electrode is by exclusion P1 connection+5V power supply; The 4th pin P1.3 of the anodic bonding main control unit AT89C51 of the 4th light emitting diode DW4, negative electrode is by exclusion P1 connection+5V power supply; The 5th pin P1.4 of the anodic bonding main control unit AT89C51 of the 5th light emitting diode DW5, negative electrode is by exclusion P1 connection+5V power supply; The 6th pin P1.5 of the anodic bonding main control unit AT89C51 of the 6th light emitting diode DW6, negative electrode is by exclusion P1 connection+5V power supply; The 7th pin P1.6 of the anodic bonding main control unit AT89C51 of the 7th light emitting diode DW7, negative electrode is by exclusion P1 connection+5V power supply; The 8th pin P1.7 of the anodic bonding main control unit AT89C51 of the 8th light emitting diode DW8, negative electrode is by exclusion P1 connection+5V power supply; The 28 pin P2.7 of the anodic bonding main control unit AT89C51 of the 9th light emitting diode DW1, negative electrode is by the first resistance R 1 connection+5V power supply.
Under normal condition (in the situation that of not pressing any button), the state of the first light emitting diode DW1 to the nine light emitting diode DW9 in Chang Liang, when answer person presses a certain button because of answer, the signal that button is pressed can send main control unit to, main control unit will be controlled the LED flash corresponding with this button, specifies current this option in selected state.
In addition, main control unit AT89C51 is also provided with the first crystal oscillating circuit and automatic reset circuit, described the first crystal oscillating circuit comprises the first crystal resonator Y1, the first capacitor C1, the second capacitor C2, and the two ends of described the first crystal resonator Y1 connect respectively the 18 pin XTAL2 and the 19 pin XTAL1 of main control unit AT89C51; The first capacitor C1 is serially connected between main control unit AT89C51 the 18 pin XTAL2 and ground; The second capacitor C2 is serially connected between main control unit AT89C51 the 19 pin XTAL1 and ground.Described automatic reset circuit comprises the tenth light emitting diode DW10, the second resistance R 2, the 3rd capacitor C3, the anode of described the first diode D1 is by the 3rd capacitor C3 ground connection, negative electrode connects the 9th pin RST of main control unit AT89C51, simultaneously the 9th also connect+5V of the pin RST power supply of main control unit AT89C51; The second resistance R 2 be serially connected in main control unit AT89C51 the 9th pin RST and+5V power supply between.
(3) ANT wireless communication unit, for making main control unit AT89C51 and terminating machine communicate, the present embodiment adopts NRF24AP2 wireless communication chips.Its structure is as shown in Figure 3: comprise the second crystal oscillating circuit and the 3rd crystal oscillating circuit, and radio transmitter.Wherein, the second crystal oscillating circuit comprises the second crystal resonator Y2, the 4th capacitor C4, the 5th capacitor C5, and the two ends of described the second crystal resonator Y2 connect respectively the 30 pin XC2 and the 31 pin XC1 of NRF24AP2 wireless communication chips; The 4th capacitor C4 is serially connected between the 30 pin XC2 and ground of NRF24AP2 wireless communication chips; The 5th capacitor C5 is serially connected between the 31 pin XC1 and ground of NRF21AP2 wireless communication chips.The 3rd crystal oscillating circuit comprises the 3rd crystal resonator Y3, the 6th capacitor C6, the 7th capacitor C7, and the two ends of described the 3rd crystal resonator Y3 connect respectively the first pin XC32K1 and the 32 pin XC32K2 of NRF24AP2 wireless communication chips; The 6th capacitor C6 is serially connected between the 32 pin XC32K2 and ground of NRF24AP2 wireless communication chips; The 7th capacitor C7 is serially connected between the first pin XC32K1 and ground of NRF24AP2 wireless communication chips.Described radio communication circuit comprises the first telefault L1, the second telefault L2, the 3rd telefault L3, one end of described the first telefault L1 connects the 22 pin ANT2 of NRF24AP2 wireless communication chips, the series circuit ground connection that the other end consists of the 13 capacitor C13 and the 14 capacitor C14, the 13 capacitor C13 is connected antenna with the intermediate node of the 14 capacitor C14 series circuit simultaneously, by this antenna and terminating machine, carries out radio communication; The two ends of described the second telefault L2 connect respectively the 21 pin ANT1 and the 22 pin ANT2 of NRF24AP2 wireless communication chips; One end of the 3rd telefault L3 connects the 21 pin ANT1 of NRF24AP2 wireless communication chips, and the other end, by the 16 capacitor C16 ground connection, also connects the 20 pin VDD_PA of NRF24AP2 wireless communication chips simultaneously; The 20 pin ADD_PA of NRF24AP2 wireless communication chips is also by the 15 capacitor C15 ground connection.
In addition, the second pin VDD connection+3.3V power supply of NRF24AP2 wireless communication chips, simultaneously also by the 8th capacitor C8 ground connection; Three-prong DEC1 is by the 9th capacitor C9 ground connection; The 4th pin DEC2 is by the tenth capacitor C10 ground connection; The 5th pin PRORTSEL, the 6th pin GND, the 8th pin GND, the 11 pin GND, the tenth three-prong GND, the 26 pin GND, the equal ground connection of the 28 pin SOUT; The 7th pin UART_TX connects the 11 pin P3.1 of main control unit AT89C51; The 9th pin VDD connection+3.3V power supply, simultaneously by the 11 capacitor C11 ground connection; The tenth pin UART_RX connects the tenth pin P3.0 of main control unit AT89C51; The 12 pin SUSPEND connects the 21 pin P2.0 of main control unit AT89C51; The 16 pin SLEEP connects the 22 pin P2.1 of main control unit AT89C51; The 17 pin RST connects the 17 pin P3.7 of main control unit AT89C51; The 20 three-prong GND ground connection, simultaneously by the 12 capacitor C12 connection+3.3V power supply; The 24 pin VDD, the 27 pin VDD, the 29 connect respectively+3.3V of pin SIN power supply; The 25 pin IREF is by the 3rd resistance R 3 ground connection.
(4) for inserting the usb interface unit of answer person's identity recognizer, described usb interface unit is connected with main control unit.The present embodiment adopts PDIUSBD12 interface chip, and it connects as shown in Figure 4: the first pin DATA0 of described PDIUSBD12 interface chip connects the 39 pin P0.0 of main control unit AT89C51; The second pin DATA1 connects the 38 pin P0.1 of main control unit AT89C51; Three-prong DATA2 connects the 37 pin P0.2 of main control unit AT89C51; The 4th pin DATA3 connects the 36 pin P0.3 of main control unit AT89C51; The 6th pin DATA4 connects the 35 pin P0.4 of main control unit AT89C51; The 7th pin DATA5 connects the 34 pin P0.5 of main control unit AT89C51; The 8th pin DATA6 connects the 30 three-prong P0.6 of main control unit AT89C51; The 9th pin DATA7 connects the 32 pin P0.7 of main control unit AT89C51; The 5th pin GND, the tenth pin ALE, the 11 pin CS_N, the equal ground connection of the 12 pin SUSPEND; The 14 pin INT_N connects the 12 pin P3.2 of main control unit AT89C51; The 15 pin RD_N connects the 17 pin P3.7 of main control unit AT89C51; The 16 pin WR_N connects the 16 pin P3.6 of main control unit AT89C51; The 18 pin DMACK_N, the 19 pin EOT-N, the 20 pin RESRT_N are all by the 4th resistance R 4 connection+5V power supplys; Between the 22 pin XTAL1 and the 24 pin XTAL2, be connected in series the 4th crystal resonator Y4, the 22 pin XTAL1 is also by the 18 capacitor C18 ground connection simultaneously, and the 20 three-prong XTAL2 is also by the 17 capacitor C17 ground connection; The 24 pin VDD connection+5V power supply; The 25 pin D-connects the second pin of USB socket JP1 by the 6th resistance R 6; The 26 pin D+ connects the first pin of USB socket JP1 by the 5th resistance R 5; The 27 pin VOUT3.3 is the parallel circuit ground connection of capacitor C20 and the 21 capacitor C21 by second; The 28 pin AO connects the 8th pin P1.7 of main control unit AT89C51.The three-prong ground connection of while USB socket JP1, the 4th pin is by the 19 capacitor C19 also ground connection.
(5) for the power supply unit of electric energy is provided, comprise that power supply provides module and power supply conversion module, described power supply provides the power supply of module output to send main control unit, ANT wireless communication unit to after power supply conversion module transforms, and usb interface unit.The power supply of the present embodiment provides module to adopt 6V button cell.Power supply conversion module is provided with the first conversion module and the second conversion module, wherein the first conversion module comprises that the adjustable positive voltage voltage stabilizer of the one or three end U1(adopts LM317), being used for is that main control unit AT89C51 and usb interface unit are powered by change into+5V of the 6V voltage voltage of button cell, its concrete connection as shown in Figure 5: the voltage input end Vin of the adjustable positive voltage voltage stabilizer of the one or three end U1 connects button cell by switch S 1, the indicating circuit ground connection simultaneously forming by the 7th resistance R 7 and the tenth light emitting diode DW10, also by the 22 capacitor C22 ground connection, voltage output end Vout output+5V voltage, simultaneously by the series circuit ground connection of the 8th resistance R 8 and the 9th resistance R 9, also connects the voltage input end Vin of self, also by the 24 capacitor C24 ground connection by the second diode D2, the voltage output end of the adjustable positive voltage voltage stabilizer of the one or three end U1 also connects the 8th resistance R 8 by the 3rd diode D3 and is connected with the intermediate node of the 9th resistance R 9 series circuits, the earth terminal GND of the adjustable positive voltage voltage stabilizer of the one or three end U1 is by the 23 capacitor C23 ground connection.
Described the second conversion module is as shown in Figure 5: comprise that the adjustable positive voltage voltage stabilizer of the two or three end U2(adopts LM317), the voltage input end Vin of the adjustable positive voltage voltage stabilizer of described the two or three end U2 connects the voltage output end Vout of the adjustable positive voltage voltage stabilizer of the one or three end U1, by the 25 capacitor C25 ground connection, also by the 4th diode D4, connect the voltage output end Vout of self simultaneously; Voltage output end Vout output+3.3V voltage is to wireless communication unit, simultaneously by the series circuit ground connection of the tenth resistance R 10 and the 11 resistance R 11, also, by the 27 capacitor C27 ground connection, also by the 5th diode D5, connect the intermediate node of the tenth resistance R 10 and the 11 resistance R 11 series circuits simultaneously; The earth terminal GND of the adjustable positive voltage voltage stabilizer of the two or three end U2 is by the 26 capacitor C26 ground connection.
In addition, the present embodiment also comprises for connecting the minusb inlet unit of main control unit and PC, by minusb inlet unit, the present embodiment is plugged on PC, and answer person can read and answer exercise question by the display screen of PC.
The present embodiment is simple in structure, and the chip integration of employing is high, and volume is little, is easy to carry, and can feed back in time student's study situation in court.
Claims (9)
1. the objective item device for answering question based on ANT wireless communication technology, is characterized in that comprising:
As the main control unit of control center, described main control unit by ANT wireless communication unit with carry out the terminating machine information interaction that achievement gathers and be connected, also the PC information interaction corresponding with each answer person connects simultaneously;
For the input block of answer person's input selection answer, the signal output part of described input block connects the signal input part of main control unit;
For the power supply unit of electric energy is provided, described power supply unit connects the power input of main control unit.
2. the objective item device for answering question based on ANT wireless communication technology according to claim 1, is characterized in that: described main control unit adopts AT89C51 singlechip chip, and ANT wireless communication unit adopts NRF24AP2 wireless communication chips.
3. the objective item device for answering question based on ANT wireless communication technology according to claim 1 and 2, is characterized in that: it also comprises for connecting the minusb inlet unit of main control unit and PC.
4. the objective item device for answering question based on ANT wireless communication technology according to claim 1 and 2, is characterized in that: it also comprises that described usb interface unit is connected with main control unit for inserting the usb interface unit of answer person's identity recognizer.
5. the objective item device for answering question based on ANT wireless communication technology according to claim 3, is characterized in that: it also comprises that described usb interface unit is connected with main control unit for inserting the usb interface unit of answer person's identity recognizer.
6. according to the objective item device for answering question based on ANT wireless communication technology described in any one in claim 1,2,5, it is characterized in that: described input block adopts key-press module, described key-press module comprises the answer button of corresponding selection topic answer choice, and the judgement button of corresponding True-False right and wrong, and each button is equipped with the display lamp for showing that this option is selected when answer person presses the button of this option.
7. the objective item device for answering question based on ANT wireless communication technology according to claim 3, it is characterized in that: described input block adopts key-press module, described key-press module comprises the answer button of corresponding each answer choice, and corresponding correct judgment and wrong judgement button, and each answer button is equipped with the display lamp for showing that this option is selected when answer person presses the button of this option.
8. the objective item device for answering question based on ANT wireless communication technology according to claim 4, it is characterized in that: described power supply unit comprises that power supply provides module and power supply conversion module, described power supply provides the power supply of module output to send main control unit, ANT wireless communication unit to after power supply conversion module transforms, and usb interface unit.
9. the objective item device for answering question based on ANT wireless communication technology according to claim 5, it is characterized in that: described power supply unit comprises that power supply provides module and power supply conversion module, described power supply provides the power supply of module output to send main control unit, ANT wireless communication unit to after power supply conversion module transforms, and usb interface unit.
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| CN201320267837.3U CN203433695U (en) | 2013-05-16 | 2013-05-16 | Objective question answering device based on ANT wireless communication technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105286300A (en) * | 2015-11-12 | 2016-02-03 | 顾珺 | Intelligent desk provided with teaching data acquisition device |
| CN108518825A (en) * | 2018-03-27 | 2018-09-11 | 温州科令欧科技有限公司 | A kind of air cleaning intelligent controller circuitry |
-
2013
- 2013-05-16 CN CN201320267837.3U patent/CN203433695U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105286300A (en) * | 2015-11-12 | 2016-02-03 | 顾珺 | Intelligent desk provided with teaching data acquisition device |
| CN108518825A (en) * | 2018-03-27 | 2018-09-11 | 温州科令欧科技有限公司 | A kind of air cleaning intelligent controller circuitry |
| CN108518825B (en) * | 2018-03-27 | 2020-09-15 | 温州科令欧科技有限公司 | Air purification intelligent control ware circuit |
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