CN204360605U - A kind of classroom instruction answering system - Google Patents
A kind of classroom instruction answering system Download PDFInfo
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- CN204360605U CN204360605U CN201420751894.3U CN201420751894U CN204360605U CN 204360605 U CN204360605 U CN 204360605U CN 201420751894 U CN201420751894 U CN 201420751894U CN 204360605 U CN204360605 U CN 204360605U
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Abstract
The utility model discloses a kind of classroom instruction answering system, comprise student terminal and teacher's terminal, described teacher's terminal comprises main controller circuit, button and key indicator lamp circuit, voltage conversion circuit and the first radio receiving transmitting module, and described student terminal comprises governor circuit, power-switching circuit, power control circuit, key circuit and the second radio receiving transmitting module.Classroom instruction answering system structure of the present utility model is simple, and reasonable in design, cost is lower, and power savings is good.
Description
Technical field
The invention belongs to education sector field, relate to a kind of classroom instruction answering system.
Background technology
Present Domestic classroom teaching, the management of school to teacher, student and classroom is all generally adopt to think management, the particularly teacher management to student.In classroom, teacher has absolute power.Classroom becomes the place that teacher carries out solo substantially, and student is rejected as an outsider.This situation determines that class management can only be teacher-centered.The obedience of student to Teachers'Authority be definitely and should, and think that academic dress is from teacher, teaching just can successfully be implemented, and just can complete the task of transmitting knowledge to student.Just under the authoritative thought of this autocracy is guided, part teacher is centered by oneself, show the management mode of "; a pipe is many " from top to bottom, on classroom between teacher and student, substantially do not exchange between student with student, teacher thinks that peace and quiet are the prerequisites ensureing that classroom activity is effectively carried out.This pattern makes student submit to the authority of teacher, must cause following blindly and supertition, and its direct result is exactly that student lacks originality, entity.
Secondly, the inertia of people can be given the style of study of school too, be taught wind to bring extremely bad impact.Partial students is late for class, and operation is plagiarized, and examination is not reviewed, and inertia directly affects the style of study of student; Some teachers' instruction PPT does not upgrade for many years, teaching style is unalterable, after class not with student's interaction, this is also that inertia is done mischief.
The fast development of infotech, infotech incorporates to impart knowledge to students and be applied to classroom instruction becomes the development trend of educating now.The relevant education software such as remote teaching, on-line study, networked teaching management and teaching product increasingly mature, but it is interactive not high, and this just needs to have more interactive Informalized teaching.Although information-based interactive teaching is progressively brought into use in classroom, instantaneity, effective in be also short of to some extent.In prior art, classroom instruction extensively adopts a teacher simultaneously in the face of the pattern of multidigit classmate, and teacher is difficult to the state understanding each classmate in real time, is difficult to assess teaching efficiency.Existing interactive teaching technology, can the information of bi-directional less, the actual needs of classroom instruction can not be met.
How to improve the innovation ability of student, the ability of practice, independent acquisition knowledge and autonomous problem-solving ability, change the passive acceptance of student, do not like the bad study habit of query, not initiative thinking, the initiative of effective raising student is the main contents of prior art research.
In prior art, the design of teacher's terminal is all very complicated, thus causes complicated operation, and cost is higher, and power consumption is also larger.
Therefore, need a kind of classroom instruction answering system to solve the problem.
Summary of the invention
The object of the invention is the shortcoming for classroom instruction in prior art, a kind of classroom instruction answering system is provided.
For achieving the above object, classroom instruction answering system of the present invention can adopt following technical scheme:
A kind of classroom instruction answering system, comprise student terminal and teacher's terminal, described teacher's terminal comprises main controller circuit, button and key indicator lamp circuit, voltage conversion circuit and the first radio receiving transmitting module, described student terminal comprises governor circuit, power-switching circuit, power control circuit, key circuit and the second radio receiving transmitting module
Comprise student terminal and teacher's terminal, it is characterized in that, described teacher's terminal comprises main controller circuit, button and key indicator lamp circuit, voltage conversion circuit and the first radio receiving transmitting module, described student terminal comprises governor circuit, power-switching circuit, power control circuit, key circuit and the second radio receiving transmitting module
Main controller circuit comprises STM8S chip, and STM8S chip comprises NRST end, OSCIN end, OSCOUT end, Vssio_1 end, a VSS end, VCAP end, the first vdd terminal, VDDIO_1 end, Vref+ end, VDDA end, VSSA end, VREF-end, VDDIO_2 end, VSSIO_2 end, SW_54 end, SW_55 end, a GOD0 interface, a CSN interface, a SCK interface, a MOSI interface, a MISO interface and a GOD2 interface;
NRST end connects VCC by resistance R121 and holds and pass through electric capacity C42 ground connection; OSCIN end and OSCOUT end are respectively by electric capacity C46 and electric capacity C47 ground connection, and OSCIN end is connected by crystal oscillator Y5 with OSCOUT end; Vssio_1 end is held equal ground connection with a VSS and is connected VCSP interface by electric capacity C50; VCAP end connects VCSP interface; First vdd terminal and VDDIO_1 end are all connected VCC and hold and by the electric capacity C52 that is connected in parallel and C54 ground connection; Vref+ end is all connected VCC with VDDA end and holds and pass through electric capacity C66 ground connection; VSSA end and VREF-hold equal ground connection; VDDIO_2 end connects VCC end, and VSSIO_2 holds ground connection, and VDDIO_2 end is connected by electric capacity C49 with VSSIO_2 end; SW_54 end is connected VCC end respectively by resistance R116 with resistance R115 with SW_55 end;
Button and key indicator lamp circuit comprise multiple resistance, multiple LED and multiple switch, and one end of LED connects VCC end by resistance, and the other end of LED connects STM8S chip by switch;
Voltage conversion circuit comprises AMS1117 mu balanced circuit, AMS1117 mu balanced circuit comprises Vin end, Vout end and a GND and holds, one GND holds ground connection, one Vin end connects+5V voltage end and by the courage electric capacity C38 that is connected in parallel and electric capacity C39 ground connection, and Vout end connects VCC end and by the courage electric capacity C40 that is connected in parallel and electric capacity C41 ground connection;
First radio receiving transmitting module comprises CC1101 chip, CC1101 chip comprises the second vdd terminal, a GOD0 end, a CSN end, a SCK end, a MOSI end, a MISO end, a GOD2 end and the 2nd GND and holds, 2nd GND holds ground connection, second vdd terminal connects VCC and holds and pass through electric capacity C69 ground connection, and a GOD0 end, a CSN end, a SCK end, a MOSI end, a MISO end are connected a GOD0 interface, a CSN interface, a SCK interface, a MOSI interface, a MISO interface and a GOD2 interface respectively with a GOD2 end;
Governor circuit comprises: STM8L single-chip microcomputer, STM8L single-chip microcomputer PC5 end, PC6 end, PA0 end, PA1 end, PA2 end, PA3 end, the 2nd VSS end, the 3rd vdd terminal, PD0 end, PB0 end, PC4 end, PC1 end, PC0 end, PB7 end, PB6 end, PB5 end, PB4 end, PB3 end, PB2 end and PB1 end, PA1 end by resistance R7 connect VCC hold and pass through electric capacity C1 connection ground connection; 2nd VSS holds ground connection; 3rd vdd terminal connects VCC and holds and pass through electric capacity C3 ground connection; PB1 end connects Power_Control end, and PB2 end, PB4 end, PB5 end, PB6 end, PB7 with PB3 are connected the 2nd GOD0 interface, the 2nd CSN interface, the 2nd SCK interface, the 2nd MOSI interface, the 2nd MISO interface and the 2nd GOD2 interface respectively;
Power-switching circuit comprises SX2106 chip, SX2106 chip comprises BST end, 3rd GND end, FB holds, SHDN holds, 2nd VIN end and LX end, 3rd GND holds ground connection, BST end connects LX end by electric capacity C6, LX end is connected FB end by the inductance L 1 be connected in series with resistance R13, LX end connects VCC end by inductance L 1 and by the electric capacity C7 that is connected in parallel and C8 ground connection, FB end connects GND end by resistance R14, 2nd VIN end is connected the 3rd GND end by electric capacity C4 with C5 be connected in parallel, 2nd VIN end connects+12V voltage end, SHDN end connects Power_Enable end by resistance R12,
Button and power control circuit comprise switch S 1, switch S 2, switch S 3 and switch S 4, switch S 1, switch S 2, switch S 3 is all connected+12V voltage end with one end of switch S 4, the other end of S1 is connected the positive pole of diode D2 by the resistance R3 that is connected in series with resistance R5 ground connection, the other end of S2 is connected the positive pole of diode D3 by the resistance R4 that is connected in series with resistance R6 ground connection, the other end of S3 is connected the positive pole of diode D4 by the resistance R8 that is connected in series with resistance R10 ground connection, the other end of S4 is connected the positive pole of diode D5 by the resistance R9 that is connected in series with resistance R11 ground connection, diode D2, diode D3, diode D4 and the negative pole of diode D5 are all connected Power_Enable end,
Power control circuit comprises p channel MOS tube Q1 and n channel MOS tube Q2, the D end of p channel MOS tube Q1 connects Power_Enable and holds and pass through electric capacity C10 ground connection, the G end of p channel MOS tube Q1 connects the D end of n channel MOS tube Q2 by resistance R16, the D end of p channel MOS tube Q1 is connected ﹢ 12V voltage end and connected the D end of n channel MOS tube Q2 by resistance R15; The S of n channel MOS tube Q2 holds ground connection, and the G end of n channel MOS tube Q2 connects Power_Control end and by the resistance R17 that is connected in parallel and electric capacity C11 ground connection;
Second radio receiving transmitting module comprises CC1101 chip, CC1101 chip comprises the 4th vdd terminal, the 2nd GOD0 end, the 2nd CSN end, the 2nd SCK end, the 2nd MOSI end, the 2nd GOD1 end, the 2nd GOD2 end and the 4th GND and holds, 4th vdd terminal connects VCC and holds and pass through electric capacity C9 ground connection, and the 2nd GOD0 end, the 2nd CSN end, the 2nd SCK end, the 2nd MOSI end, the 2nd GOD1 end are connected the 2nd GOD0 interface, the 2nd CSN interface, the 2nd SCK interface, the 2nd MOSI interface, the 2nd MISO interface and the 2nd GOD2 interface respectively with the 2nd GOD2 end.
Beneficial effect: classroom instruction answering system structure of the present invention is simple, and reasonable in design, cost is lower, and the power savings of student terminal is good.
Accompanying drawing explanation
The structural representation of Fig. 1 classroom answering system;
Fig. 2 is the circuit diagram of main controller circuit;
Fig. 3 is the circuit diagram of button and key indicator lamp circuit;
Fig. 4 is the circuit diagram of voltage conversion circuit;
Fig. 5 is the circuit diagram of the first radio receiving transmitting module;
Fig. 6 is the circuit diagram of governor circuit;
Fig. 7 is the circuit diagram of key circuit;
Fig. 8 is the circuit diagram of power-switching circuit;
Fig. 9 is power control circuit;
Figure 10 is the circuit diagram of the second radio receiving transmitting module.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Refer to shown in Fig. 1, classroom instruction answering system of the present invention comprises classroom server, teacher's terminal, student's handheld terminal and projector, classroom server comprises database module, classroom server also comprises VT, VT connects projector, teacher's terminal connects classroom server by data line, and student's handheld terminal connects teacher's terminal by wireless network, comprises the following steps:
1), teacher's design alternative is inscribed or select exercise question from the selection exam pool of design in advance;
2), teacher complete to knowledge point or teaching material explanation after, the problem related to is shown by projector;
3), teacher sends answer requirement by teacher's terminal to student's handheld terminal, and student's answer also submits answer to by student's handheld terminal, and student's handheld terminal shuts down;
4), classroom server collected the answer sent by student's handheld terminal, and answer is presented in teacher's terminal, and answer result is presented on projector according to the situation of answer by teacher;
5), teacher sends end signal by teacher's terminal, the information that classroom server stops reception student handheld terminal to submit to;
6), the answer of student is stored in database module.
Preferably, classroom instruction answering system also comprises Cloud Server, and classroom server connects Cloud Server.The answer record of student in a database, and can be uploaded to Cloud Server.Teacher grasps class classmate to mastery of knowledge situation by the distribution situation of observing, analyzing student's answer, and adjusts instructional strategies on this basis.
Student's handheld terminal comprises key-press module and calling module, and calling module connects teacher's terminal by wireless network.Student's handheld terminal only needs 4 ~ 5 keys just can complete work attendance, test, the sequence of operations such as to race to be the first to answer a question, easy to use.The pass of teacher's terminal control student handheld terminal; Student's handheld terminal button triggers will enter duty, and student can only do single choice or multiselect response as requested, and response result teacher according to circumstances can carry out anonymity or not anonymous mode shows; Anonymous answer alleviates the psychological pressure of student, improves enthusiasm and the initiative of Students ' Learning, and learning time drops into be increased; Can start learning game at any time, start test, and effectively immediate feedback, record is grown up, and not by the constraint of paper and pen, realizes classroom teaching teacher and to listen to the teacher to student the overall monitor of study; Achieve the interactive real-time of Faculty and Students, promote classroom atmosphere; Teacher can Real-Time Monitoring student to teaching point grasp situation, time is effectively distributed in the explanation of the knowledge point that student does not grasp, make full use of the classroom instruction time, make student just can correctly grasp all contents of courses on classroom, and teacher is freed from loaded down with trivial details exam paper assessment scoring work; Achieve efficient classroom instruction.
Classroom server also comprises display module and interactive teaching and learning module, and interactive teaching and learning module comprises control treatment module, electronics roll-call module, mark inquiry module, electric answer module and electronics race to be the first to answer a question module.
Classroom instruction answering system student terminal of the present invention adopts classroom instruction answering system, classroom instruction answering system adopts wireless communication mode, realize the communication between teacher's terminal and student's handheld terminal, and devise corresponding classroom answer method, understanding and the study schedule of student can be fed back in time, be beneficial to teacher's quick students ' study situation, improve enthusiasm and the initiative of Students ' Learning.
Embodiment 1
Refer to shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, classroom instruction answering system teacher terminal of the present invention, comprises main controller circuit, button and key indicator lamp circuit, voltage conversion circuit and the first radio receiving transmitting module,
Main controller circuit comprises STM8S chip, and STM8S chip comprises NRST end, OSCIN end, OSCOUT end, Vssio_1 end, a VSS end, VCAP end, the first vdd terminal, VDDIO_1 end, Vref+ end, VDDA end, VSSA end, VREF-end, VDDIO_2 end, VSSIO_2 end, SW_54 end, SW_55 end, a GOD0 interface, a CSN interface, a SCK interface, a MOSI interface, a MISO interface and a GOD2 interface.
NRST end connects VCC by resistance R121 and holds and pass through electric capacity C42 ground connection; OSCIN end and OSCOUT end are respectively by electric capacity C46 and electric capacity C47 ground connection, and OSCIN end is connected by crystal oscillator Y5 with OSCOUT end; Vssio_1 end is held equal ground connection with a VSS and is connected VCSP interface by electric capacity C50; VCAP end connects VCSP interface; First vdd terminal and VDDIO_1 end are all connected VCC and hold and by the electric capacity C52 that is connected in parallel and C54 ground connection; Vref+ end is all connected VCC with VDDA end and holds and pass through electric capacity C66 ground connection; VSSA end and VREF-hold equal ground connection; VDDIO_2 end connects VCC end, and VSSIO_2 holds ground connection, and VDDIO_2 end is connected by electric capacity C49 with VSSIO_2 end; SW_54 end is connected VCC end respectively by resistance R116 with resistance R115 with SW_55 end;
Button and key indicator lamp circuit comprise multiple resistance, multiple LED and multiple switch, and one end of LED connects VCC end by resistance, and the other end of LED connects STM8S chip by switch;
Voltage conversion circuit comprises AMS1117 mu balanced circuit, AMS1117 mu balanced circuit comprises Vin end, Vout end and a GND and holds, one GND holds ground connection, one Vin end connects+5V voltage end and by the courage electric capacity C38 that is connected in parallel and electric capacity C39 ground connection, and Vout end connects VCC end and by the courage electric capacity C40 that is connected in parallel and electric capacity C41 ground connection;
First radio receiving transmitting module comprises CC1101 chip, CC1101 chip comprises the second vdd terminal, a GOD0 end, a CSN end, a SCK end, a MOSI end, a MISO end, a GOD2 end and the 2nd GND and holds, 2nd GND holds ground connection, second vdd terminal connects VCC and holds and pass through electric capacity C69 ground connection, and a GOD0 end, a CSN end, a SCK end, a MOSI end, a MISO end are connected a GOD0 interface, a CSN interface, a SCK interface, a MOSI interface, a MISO interface and a GOD2 interface respectively with a GOD2 end.
Refer to Fig. 6, Fig. 7, Fig. 8, shown in Fig. 9 and Figure 10, classroom instruction answering system student terminal of the present invention, comprise governor circuit, power-switching circuit, power control circuit, button and power control circuit and the second radio receiving transmitting module, governor circuit comprises: STM8L single-chip microcomputer, STM8L single-chip microcomputer PC5 holds, PC6 holds, PA0 holds, PA1 holds, PA2 holds, PA3 holds, 2nd VSS end, 3rd vdd terminal, PD0 holds, PB0 holds, PC4 holds, PC1 holds, PC0 holds, PB7 holds, PB6 holds, PB5 holds, PB4 holds, PB3 holds, PB2 end and PB1 end, PA1 end connects VCC by resistance R7 and holds and pass through electric capacity C1 connection ground connection.2nd VSS holds ground connection.3rd vdd terminal connects VCC and holds and pass through electric capacity C3 ground connection.PB1 end connects Power_Control end, and PB2 end, PB4 end, PB5 end, PB6 end, PB7 with PB3 are connected the 2nd GOD0 interface, the 2nd CSN interface, the 2nd SCK interface, the 2nd MOSI interface, the 2nd MISO interface and the 2nd GOD2 interface respectively.
Power-switching circuit comprises SX2106 chip, SX2106 chip comprises BST end, 3rd GND end, FB holds, SHDN holds, 2nd VIN end and LX end, 3rd GND holds ground connection, BST end connects LX end by electric capacity C6, LX end is connected FB end by the inductance L 1 be connected in series with resistance R13, LX end connects VCC end by inductance L 1 and by the electric capacity C7 that is connected in parallel and C8 ground connection, FB end connects GND end by resistance R14, 2nd VIN end is connected the 3rd GND end by electric capacity C4 with C5 be connected in parallel, 2nd VIN end connects+12V voltage end, SHDN end connects Power_Enable end by resistance R12.
Button and power control circuit comprise switch S 1, switch S 2, switch S 3 and switch S 4, switch S 1, switch S 2, switch S 3 is all connected+12V voltage end with one end of switch S 4, the other end of S1 is connected the positive pole of diode D2 by the resistance R3 that is connected in series with resistance R5 ground connection, the other end of S2 is connected the positive pole of diode D3 by the resistance R4 that is connected in series with resistance R6 ground connection, the other end of S3 is connected the positive pole of diode D4 by the resistance R8 that is connected in series with resistance R10 ground connection, the other end of S4 is connected the positive pole of diode D5 by the resistance R9 that is connected in series with resistance R11 ground connection.Diode D2, diode D3, diode D4 and the negative pole of diode D5 are all connected Power_Enable end.After button operation, system electrification, selected button value is effective simultaneously, and now governor circuit controls power path, and after button unclamps, system keeps power supply, and Power supply realizes power-off by power control circuit part.
Power control circuit comprises p channel MOS tube Q1 and n channel MOS tube Q2, the D end of p channel MOS tube Q1 connects Power_Enable and holds and pass through electric capacity C10 ground connection, the G end of p channel MOS tube Q1 connects the D end of n channel MOS tube Q2 by resistance R16, the D end of p channel MOS tube Q1 is connected ﹢ 12V voltage end and connected the D end of n channel MOS tube Q2 by resistance R15.The S of n channel MOS tube Q2 holds ground connection, and the G end of n channel MOS tube Q2 connects Power_Control end and by the resistance R17 that is connected in parallel and electric capacity C11 ground connection.After system electrification, Power_Control is high level, N-MOS pipe Q2 conducting, and the D pole of Q2 is dragged down, P-MOS pipe Q1 conducting, and Power_Enable becomes high level, and Sx2106 control obtains enable, and power-converting circuit normally works.When governor circuit transmits control signal, when Power_Control is low level, the D of Q2 pipe is very high, and Q1 pipe ends, and Power_Enable is low, SX2106 cisco unity malfunction, and power supply disconnects.
Second radio receiving transmitting module comprises CC1101 chip, CC1101 chip comprises the 4th vdd terminal, the 2nd GOD0 end, the 2nd CSN end, the 2nd SCK end, the 2nd MOSI end, the 2nd GOD1 end, the 2nd GOD2 end and the 4th GND and holds, 4th vdd terminal connects VCC and holds and pass through electric capacity C9 ground connection, and the 2nd GOD0 end, the 2nd CSN end, the 2nd SCK end, the 2nd MOSI end, the 2nd GOD1 end are connected the 2nd GOD0 interface, the 2nd CSN interface, the 2nd SCK interface, the 2nd MOSI interface, the 2nd MISO interface and the 2nd GOD2 interface respectively with the 2nd GOD2 end.
Classroom instruction answering system structure of the present invention is simple, and classroom terminal and student terminal reasonable combination, reasonable in design, cost is lower, and power savings is good.
Claims (1)
1. a classroom instruction answering system, comprise student terminal and teacher's terminal, it is characterized in that, described teacher's terminal comprises main controller circuit, button and key indicator lamp circuit, voltage conversion circuit and the first radio receiving transmitting module, described student terminal comprises governor circuit, power-switching circuit, power control circuit, key circuit and the second radio receiving transmitting module
Main controller circuit comprises STM8S chip, and STM8S chip comprises NRST end, OSCIN end, OSCOUT end, Vssio_1 end, a VSS end, VCAP end, the first vdd terminal, VDDIO_1 end, Vref+ end, VDDA end, VSSA end, VREF-end, VDDIO_2 end, VSSIO_2 end, SW_54 end, SW_55 end, a GOD0 interface, a CSN interface, a SCK interface, a MOSI interface, a MISO interface and a GOD2 interface;
NRST end connects VCC by resistance R121 and holds and pass through electric capacity C42 ground connection; OSCIN end and OSCOUT end are respectively by electric capacity C46 and electric capacity C47 ground connection, and OSCIN end is connected by crystal oscillator Y5 with OSCOUT end; Vssio_1 end is held equal ground connection with a VSS and is connected VCSP interface by electric capacity C50; VCAP end connects VCSP interface; First vdd terminal and VDDIO_1 end are all connected VCC and hold and by the electric capacity C52 that is connected in parallel and C54 ground connection; Vref+ end is all connected VCC with VDDA end and holds and pass through electric capacity C66 ground connection; VSSA end and VREF-hold equal ground connection; VDDIO_2 end connects VCC end, and VSSIO_2 holds ground connection, and VDDIO_2 end is connected by electric capacity C49 with VSSIO_2 end; SW_54 end is connected VCC end respectively by resistance R116 with resistance R115 with SW_55 end;
Button and key indicator lamp circuit comprise multiple resistance, multiple LED and multiple switch, and one end of LED connects VCC end by resistance, and the other end of LED connects STM8S chip by switch;
Voltage conversion circuit comprises AMS1117 mu balanced circuit, AMS1117 mu balanced circuit comprises Vin end, Vout end and a GND and holds, one GND holds ground connection, one Vin end connects+5V voltage end and by the courage electric capacity C38 that is connected in parallel and electric capacity C39 ground connection, and Vout end connects VCC end and by the courage electric capacity C40 that is connected in parallel and electric capacity C41 ground connection;
First radio receiving transmitting module comprises CC1101 chip, CC1101 chip comprises the second vdd terminal, a GOD0 end, a CSN end, a SCK end, a MOSI end, a MISO end, a GOD2 end and the 2nd GND and holds, 2nd GND holds ground connection, second vdd terminal connects VCC and holds and pass through electric capacity C69 ground connection, and a GOD0 end, a CSN end, a SCK end, a MOSI end, a MISO end are connected a GOD0 interface, a CSN interface, a SCK interface, a MOSI interface, a MISO interface and a GOD2 interface respectively with a GOD2 end;
Governor circuit comprises: STM8L single-chip microcomputer, STM8L single-chip microcomputer PC5 end, PC6 end, PA0 end, PA1 end, PA2 end, PA3 end, the 2nd VSS end, the 3rd vdd terminal, PD0 end, PB0 end, PC4 end, PC1 end, PC0 end, PB7 end, PB6 end, PB5 end, PB4 end, PB3 end, PB2 end and PB1 end, PA1 end by resistance R7 connect VCC hold and pass through electric capacity C1 connection ground connection; 2nd VSS holds ground connection; 3rd vdd terminal connects VCC and holds and pass through electric capacity C3 ground connection; PB1 end connects Power_Control end, and PB2 end, PB4 end, PB5 end, PB6 end, PB7 with PB3 are connected the 2nd GOD0 interface, the 2nd CSN interface, the 2nd SCK interface, the 2nd MOSI interface, the 2nd MISO interface and the 2nd GOD2 interface respectively;
Power-switching circuit comprises SX2106 chip, SX2106 chip comprises BST end, 3rd GND end, FB holds, SHDN holds, 2nd VIN end and LX end, 3rd GND holds ground connection, BST end connects LX end by electric capacity C6, LX end is connected FB end by the inductance L 1 be connected in series with resistance R13, LX end connects VCC end by inductance L 1 and by the electric capacity C7 that is connected in parallel and C8 ground connection, FB end connects GND end by resistance R14, 2nd VIN end is connected the 3rd GND end by electric capacity C4 with C5 be connected in parallel, 2nd VIN end connects+12V voltage end, SHDN end connects Power_Enable end by resistance R12,
Button and power control circuit comprise switch S 1, switch S 2, switch S 3 and switch S 4, switch S 1, switch S 2, switch S 3 is all connected+12V voltage end with one end of switch S 4, the other end of S1 is connected the positive pole of diode D2 by the resistance R3 that is connected in series with resistance R5 ground connection, the other end of S2 is connected the positive pole of diode D3 by the resistance R4 that is connected in series with resistance R6 ground connection, the other end of S3 is connected the positive pole of diode D4 by the resistance R8 that is connected in series with resistance R10 ground connection, the other end of S4 is connected the positive pole of diode D5 by the resistance R9 that is connected in series with resistance R11 ground connection, diode D2, diode D3, diode D4 and the negative pole of diode D5 are all connected Power_Enable end,
Power control circuit comprises p channel MOS tube Q1 and n channel MOS tube Q2, the D end of p channel MOS tube Q1 connects Power_Enable and holds and pass through electric capacity C10 ground connection, the G end of p channel MOS tube Q1 connects the D end of n channel MOS tube Q2 by resistance R16, the D end of p channel MOS tube Q1 is connected ﹢ 12V voltage end and connected the D end of n channel MOS tube Q2 by resistance R15; The S of n channel MOS tube Q2 holds ground connection, and the G end of n channel MOS tube Q2 connects Power_Control end and by the resistance R17 that is connected in parallel and electric capacity C11 ground connection;
Second radio receiving transmitting module comprises CC1101 chip, CC1101 chip comprises the 4th vdd terminal, the 2nd GOD0 end, the 2nd CSN end, the 2nd SCK end, the 2nd MOSI end, the 2nd GOD1 end, the 2nd GOD2 end and the 4th GND and holds, 4th vdd terminal connects VCC and holds and pass through electric capacity C9 ground connection, and the 2nd GOD0 end, the 2nd CSN end, the 2nd SCK end, the 2nd MOSI end, the 2nd GOD1 end are connected the 2nd GOD0 interface, the 2nd CSN interface, the 2nd SCK interface, the 2nd MOSI interface, the 2nd MISO interface and the 2nd GOD2 interface respectively with the 2nd GOD2 end.
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CN111066075A (en) * | 2019-09-03 | 2020-04-24 | 深圳市鹰硕技术有限公司 | Classroom teaching interaction method, terminal and system |
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