CN204632156U - Student smart cards for classroom interaction - Google Patents

Abstract

The utility model discloses a kind of Intelligence of Students card for classroom instruction interaction, in this smart card, lithium battery provides central processing module respectively after charge management module and DC-DC modular converter, display module, wireless communication module, real-time clock module working power, real-time clock module is bi-directionally connected central processing module for providing real-time clock signal, wireless communication module is bi-directionally connected central processing module for transmitting interactive information, display module connects the display translation end of central processing module, function button module comprises login button, answer key, recorded broadcast mark key, Channel assignment key, OK button and clear key, in function button module, each key connects the key-press input end of central processing module respectively.This smart card effectively improves the interaction of teacher and student at classroom teaching, and real time record student, at the study condition in classroom, facilitates teacher to grasp classroom instruction situation in time, greatly improves quality of instruction.

Description

Student smart cards for classroom interaction

technical field

The utility model relates to a student smart card used for classroom teaching interaction.

Background technique

The traditional classroom teaching model is a teaching model centered on teachers, books and classrooms, and has formed a situation where teachers are one-way instilling and students are passively accepting. In classroom teaching, there are no quantitative indicators and statistical data for students' performance, participation, and level of answering questions. The overall performance of students in a semester can only be judged based on impressions or not judged at all. At the same time, teachers cannot keep abreast of all students' feedback on teaching problems, pay attention to the learning status of each student, and grasp the overall teaching situation in the classroom. However, students usually accept the teacher's classroom teaching passively, and rely on notes to record difficult points in the teaching process, which affects their attention in class. Therefore, the traditional classroom teaching mode hinders the improvement of teaching quality, is not conducive to the teaching interaction between teachers and students, and cannot make accurate and quantitative assessments of each student's usual learning status.

Contents of the invention

The technical problem to be solved by the utility model is to provide a student smart card for classroom teaching interaction. This smart card can effectively improve the interaction between teachers and students in classroom teaching, and record the learning status of students in the classroom in real time, which is convenient for teachers to grasp classroom teaching in time. The situation has greatly improved the quality of teaching.

In order to solve the above-mentioned technical problems, the student smart card used for classroom teaching interaction of the utility model includes a central processing module, a lithium battery, a charging management module, a DC-DC conversion module, a display module, a wireless communication module, a real-time clock module and a function button module, The lithium battery provides working power for the central processing module, display module, wireless communication module, and real-time clock module respectively after the charging management module and the DC-DC conversion module, and the real-time clock module is bidirectionally connected to the central processing module For providing a real-time clock signal, the wireless communication module is bidirectionally connected to the central processing module for transmitting interactive information, the display module is connected to the display output end of the central processing module, and the function button module includes a login key, an answering button key, recording and broadcasting mark key, channel selection key, confirmation key and clear key, and each key in the function key module is connected to the key input terminal of the central processing module respectively.

Further, the smart card also includes a power-saving control module and a power-saving mode button, the lithium battery provides the working power of the power-saving control module after the charging management module and the DC-DC conversion module, and the power-saving control module The signal input terminal is connected to the power-saving signal output terminal of the central processing module, the signal output terminal of the power-saving control module is respectively connected to the power control terminals of the display module and the wireless communication module, and the power-saving mode button is connected to the The power-saving mode input terminal of the central processing module.

Further, the function key module further includes a number/letter mixed key and a four arithmetic operation key, and the number/letter mixed key and the four arithmetic operation key are respectively connected to the key input terminals of the central processing module.

Further, the smart card also includes a USB module, the USB module includes a USB interface and a serial conversion circuit, and the USB interface is connected to the serial port of the central processing module through the serial conversion circuit. 

Since the utility model is used for the student smart card for classroom teaching interaction, the above-mentioned technical scheme is adopted, that is, the lithium battery in the smart card provides a central processing module, a display module, a wireless communication module, and a real-time clock after the charging management module and the DC-DC conversion module. The working power supply of the module, the real-time clock module is bidirectionally connected to the central processing module for providing real-time clock signals, the wireless communication module is bidirectionally connected to the central processing module for transmitting interactive information, the display module is connected to the display output terminal of the central processing module, and the function key module includes a login key , answer key, recording and broadcasting mark key, channel selection key, determination key and clear key, and each key in the function key module is connected to the key input terminal of the central processing module respectively. The smart card can effectively improve the interaction between teachers and students in classroom teaching, record the learning status of students in the classroom in real time, facilitate teachers to grasp the classroom teaching situation in time, and greatly improve the teaching quality.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

Fig. 1 is the functional block diagram of the student smart card used for classroom teaching interaction of the present invention;

Fig. 2 is the circuit diagram of this smart card central processing module single-chip microcomputer chip;

Fig. 3 is the circuit diagram of this smart card display module control chip;

Fig. 4 is a schematic circuit diagram of the charging management module of the smart card;

Fig. 5 is the circuit diagram of this smart card DC-DC conversion module;

Fig. 6 is the circuit diagram of this smart card real-time clock module;

Fig. 7 is the circuit diagram of this smart card function button module;

FIG. 8 is a schematic circuit diagram of the smart card power-saving control module;

FIG. 9 is a schematic circuit diagram of the smart card power-saving mode button;

Fig. 10 is a schematic diagram of the serial port conversion circuit in the USB module of the smart card;

FIG. 11 is a schematic diagram of the appearance of the smart card.

Detailed ways

Embodiment as shown in Figure 1, the utility model is used for the student smart card of classroom teaching interaction and comprises central processing module 1, lithium battery 2, charging management module 3, DC-DC conversion module 4, display module 5, wireless communication module 6, real-time A clock module 7 and a function button module 8, the lithium battery 2 respectively provides the central processing module 1, the display module 5, the wireless communication module 6, and the real-time clock module after the charging management module 3 and the DC-DC conversion module 4 7 working power supply, the real-time clock module 7 is bidirectionally connected to the central processing module 1 for providing a real-time clock signal, the wireless communication module 6 is bidirectionally connected to the central processing module 1 for transmitting interactive information, and the display module 5 Connect the display output end of described central processing module 1, described function key module 8 comprises login key, answer key, recording and broadcasting mark key, channel selection key, determination key and clear key, each key in described function key module 8 is respectively Connect the key input terminal of the central processing module 1.

This smart card is used in conjunction with the background system of teaching. In this smart card, press the login button and use the student number as the ID to log into the background system, which plays the role of classroom teaching attendance; the answer key realizes the function of raising hands to answer questions in the classroom teaching process. You can also use this button to give the answers to the teacher's questions. The teacher can get the feedback information of each student in real time through the background system, and grasp the students' understanding and learning bottlenecks in real time through the statistical function of the background system, which is convenient for targeted teaching and effectively improves teaching. Quality; in the background system with recording and broadcasting functions, students can use the recording and broadcasting mark key to time mark the recording and broadcasting content, so that students can play back the marked points after class and repeat the learning of difficult points. In the background system of the function, the teacher can analyze the statistical data of the time node of the key through the background system, and grasp the feedback information of the students on the difficult problems in the teaching process, so as to facilitate teaching; the channel selection key is used to set the communication channel of the wireless communication module , avoid the interference of adjacent channels, and ensure the communication between the smart card and the background system; the confirm key and the clear key are used to confirm the input information or delete the wrongly input information, so as to improve the flexibility of the smart card. After being processed by the central processing module, the above-mentioned various types of information can be displayed through the display module, which is convenient for the use of the smart card.

The central processing module of the smart card can use the STK15L2K32S2 series single-chip microcomputer chip, and its circuit diagram is shown in Figure 2. The display module is composed of a liquid crystal screen and a control chip. The control chip adopts the HT1622 chip, and its circuit diagram is shown in Figure 3. The charging management module is shown in Figure 4, which is composed of CN3062 chip. The CN3062 chip judges whether the VUSB signal is charging the lithium battery BT1. If the lithium battery is in a power shortage state, the CN3062 chip will automatically charge the lithium battery BT1, and the CHRG terminal is Low level, the charging indicator light is on, if the CN3062 chip judges that the current lithium battery does not need to be charged, or the charging has been completed, then the DONE terminal is low level, the charging completion indicator light is on, and the signal BAT_DET can pass the current voltage of the lithium battery through the voltage dividing resistor. The signal is output to the single-chip microcomputer, and the single-chip microcomputer judges whether to charge or not. The DC-DC conversion module is shown in Figure 5, which is composed of HT7833 chip, the VIN terminal is connected to a lithium battery, and the VOUT terminal outputs the working power of the smart card. The real-time clock module is shown in Figure 6, which uses the PCF8563 chip, and the clock reference is provided by the crystal oscillator Y1. The wireless communication module uses a 24L01 chip and is directly connected to the signal transmitting and receiving ports of the single-chip microcomputer chip. The function button module is shown in Figure 7. The signals KEY1~KEY10 are connected to the corresponding button input terminals of the single-chip microcomputer chip. Taking the S1 button as an example, the single-chip microcomputer needs to detect whether the S1 button is pressed. First, the output signal KEY10 is low, and the signal KEY1 is detected If the key S1 is pressed, KEY1 is low level; if the key S1 is not pressed, KEY1 is high level. If you need to shield the S1 button, you only need to output the KEY10 signal to a high level. Other keys are analogized like this, and keys such as S1 are defined as function keys in the function key module.

Preferably, the smart card also includes a power-saving control module 10 and a power-saving mode button 11, and the lithium battery 2 provides working power for the power-saving control module 10 after the charging management module 3 and the DC-DC conversion module 4, The signal input end of the power-saving control module 10 is connected to the power-saving signal output end of the central processing module 1, and the signal output end of the power-saving control module 10 is respectively connected to the power supplies of the display module 5 and the wireless communication module 6 The control terminal, the power saving mode button 11 is connected to the power saving mode input terminal of the central processing module 1 .

The power-saving control module and the power-saving mode button play the role of saving power during idle time and improve battery life. The power-saving control module is shown in Figure 8, which is composed of a field effect transistor Q1 and a transistor Q2. If the single-chip microcomputer chip judges that it needs to enter the power-saving mode, the output signal POWER_CTL of the single-chip microcomputer chip is low, the transistor Q2 is cut off, and the power of the field effect transistor Q1 is The gate level is high level, the field effect transistor Q1 is in the cut-off state, and there is no voltage on VDD; when the single-chip microcomputer chip judges that it needs to enter the normal operation mode, then the single-chip microcomputer chip output signal POWER_CTL is high level, the transistor Q2 is turned on, and the field effect transistor Q1 The gate level is low level, the field effect transistor Q1 is in the conduction state, and VDD33V supplies power to other modules through the field effect transistor Q1. The power-saving mode button is shown in Figure 9. If the button S5 is pressed, KEY11 is at low level. If the button S5 is not pressed, KEY11 is at high level. sleep state.

Preferably, the function key module further includes a number/letter mixed key and a four arithmetic operation key, and the number/letter mixed key and the four arithmetic operation key are respectively connected to the key input terminals of the central processing module. The setting of smart number/letter mixed keys and four arithmetic keys makes the smart card have a simple calculation function and improves the use function of the smart card; at the same time, the calculation function can be remotely prohibited through the background system. Send an instruction to disable the computing function of the smart card, which greatly facilitates the management of the test tool.

Embodiment 2, on the basis of Embodiment 1, as shown in Figure 1, this smart card also comprises USB module 9, and described USB module 9 comprises USB interface 92 and serial port conversion circuit 91, and described USB interface 92 passes serial port conversion circuit 91 is connected to the serial port of the central processing module 1. Among them, the serial port conversion circuit is shown in Figure 10. It adopts the CH340 chip, which is an adapter chip for the USB bus. The crystal oscillator Y2 provides the crystal oscillator signal to realize the functions of USB to serial port, USB to IrDA infrared or USB to printer port, which improves the performance of the smart card. Extended functions and diverse applications.

As shown in Figure 11, each part of this smart card can be encapsulated in the card housing 12, the liquid crystal screen 51 of the display module, each key 81 of the function button module and each indicator light 13 are arranged on the front panel of the card housing 12, and the USB module The USB interface 92 is located on the bottom surface of the card case 12 . This smart card provides an information tool for classroom teaching interaction. When teachers ask questions in class, students can use this smart card to answer questions in time. With the analysis and statistics functions of the background system, teachers can quickly and intuitively understand all students' understanding of the problem. Grasp students' learning level and learning bottlenecks; students' answers to each question can not only be displayed in real time in the classroom, but also can be queried on the campus network server in the future, and statistical reports can be generated to track classroom questions and answers, providing teachers and administrators Provide quantitative basis for judging students' daily learning status. At the same time, the attendance function is realized through the login key of the smart card, which overcomes the defects of the traditional attendance method.

This smart card greatly improves the teaching quality and students' learning efficiency, and strengthens the interaction in teaching. Teachers can quickly obtain feedback from all students on questions at the same time, pay attention to each student, and grasp the overall situation of teaching; students can simultaneously Participating in question answering saves the time for individual questions, and the results of classroom answers can be analyzed and displayed through real-time charts in the background system, which is convenient for teachers to teach. At the same time, this smart card can bind the student with the student number, and the background system will sign in by default, automatically count, and automatically complete the attendance, which can significantly reduce the waste of valuable time in classroom teaching, and promote students' active attendance and classroom answering, so as to complete the classroom in a good state study.

Claims (4)

1. A student smart card for classroom teaching interaction, characterized in that: the smart card includes a central processing module, a lithium battery, a charging management module, a DC-DC conversion module, a display module, a wireless communication module, a real-time clock module and function keys module, the lithium battery provides working power for the central processing module, display module, wireless communication module, and real-time clock module respectively after the charging management module and the DC-DC conversion module, and the real-time clock module is bidirectionally connected to the central The processing module is used to provide a real-time clock signal, the wireless communication module is bidirectionally connected to the central processing module for transmitting interactive information, the display module is connected to the display output end of the central processing module, and the function key module includes a login key , an answer key, a recording and broadcasting mark key, a channel selection key, a confirmation key and a clear key, each key in the function key module is connected to the key input terminal of the central processing module respectively. 2. The student smart card for classroom teaching interaction according to claim 1, characterized in that: the smart card also includes a power-saving control module and a power-saving mode button, and the lithium battery is charged through the charging management module and DC-DC After the conversion module provides the working power of the power saving control module, the signal input end of the power saving control module is connected to the power saving signal output end of the central processing module, and the signal output end of the power saving control module is respectively connected to the The power control terminals of the display module and the wireless communication module, the power saving mode button is connected to the power saving mode input terminal of the central processing module. 3. The student smart card for classroom teaching interaction according to claim 1 or 2, characterized in that: the function button module also includes a number/letter mixed key and four arithmetic keys, and the number/letter mixed key and four arithmetic keys The operation keys are respectively connected to the key input terminals of the central processing module. 4. The student smart card for classroom teaching interaction according to claim 3, characterized in that: the smart card also includes a USB module, and the USB module includes a USB interface and a serial port conversion circuit, and the USB interface is connected to the serial port conversion circuit The serial port of the central processing module.