CN211669677U - Artificial intelligence education supervision equipment - Google Patents

Abstract

An artificial intelligence education supervision device comprises a switch power supply, a wireless remote control board, a counter, a voice module and a loudspeaker; it is characterized in that the device also comprises a wireless receiving circuit, a sound detection circuit and a control circuit; the switch power supply, the counter, the voice module, the loudspeaker, the wireless receiving circuit, the sound detection circuit and the control circuit are arranged in the element box and are electrically connected. In the novel application, when an involuntary student speaks to generate larger sound, the sound detection circuit controls the counter to accumulate and count once every speaking, and data support can be provided for promoting good atmosphere management of a lesson. In this is novel, when the every time not autonomic student self-study class sends discordant sound, can also play pronunciation through voice module and warn, make other students study in good study atmosphere as far as possible. Based on the above, this is novel has good application prospect.

Description

Artificial intelligence education supervision equipment

Technical Field

The utility model relates to a teaching equipment field, especially an artificial intelligence education supervises equipment.

Background

With the development of science and technology, artificial intelligence is more and more applied to various industries, and in order to adapt to the development of the era and provide more relevant technical talents for the society, artificial intelligence education courses are provided for a plurality of colleges and universities and the like. The artificial intelligence education not only needs to receive the theoretical education of a teacher, but also needs the students to manually practice and operate various artificial intelligence devices, so that a better learning effect is achieved, meanwhile, in the artificial intelligence teaching, a school has still provided a study class, the teacher can not go to the class, and the students review, digest and absorb the learned knowledge or pre-learn new courses.

In actual situations, teachers cannot go into classes, student self-study classes and the like, and not every student has good self-discipline capability, so that the non-discipline student behaviors directly influence normal learning of other students in the same class; the method is mainly characterized in that involuntary students speak in a classroom and the like to generate unnecessary sounds, so that other classmates are influenced. In the prior art, no equipment can supervise the behavior of learning of other people, which is influenced by the fact that the learning of other people is influenced by the inharmonious sound generated by the inharmonious students in the teaching process, and therefore, the study of other students is influenced to a certain extent, and a teacher cannot master the specific conditions in the study class and the like, and cannot provide support for promoting good atmosphere management of the study class.

Disclosure of Invention

In order to overcome the defects that no equipment can supervise the behavior of self-study classes in teaching and the like, the discordant sound generated by the non-self-disciplined students affects the study of other people, certain bad influence can be brought to the study of other students, and the teachers can not master the specific conditions in the self-study classes and the like and can not provide support for promoting the atmosphere management of good self-study classes, the utility model provides convenient use, can be conveniently installed in required classrooms for use, in application, under the condition that the teachers can not reach the classrooms in the self-study classes and the like, the teachers can conveniently open the equipment for work, in application, can effectively supervise the sound data in the teaching classes, can count the loud noises and the like generated by the non-disciplined students every time in an accumulating way, can effectively master the discordant sound times sent by the non-self-disciplined students after the teachers follow-up to the classroom, and provides support for promoting the atmosphere management of good self, and when the irregular student self-study class sends out the incongruous sound each time, the voice module can be used for playing the voice to warn, so that other students can learn in a good learning atmosphere as far as possible.

The utility model provides a technical scheme that its technical problem adopted is:

an artificial intelligence education supervision device comprises a switch power supply, a wireless remote control board, a counter, a voice module and a loudspeaker; it is characterized in that the device also comprises a wireless receiving circuit, a sound detection circuit and a control circuit; the switch power supply, the counter, the voice module, the loudspeaker, the wireless receiving circuit, the sound detection circuit and the control circuit are arranged in the element box and are electrically connected; the power input ends of the switching power supply and the counter are respectively connected with two poles of an alternating current power supply, and the power output ends of the switching power supply are respectively connected with the power input ends of the wireless receiving circuit; the two ends of the power supply output of the wireless receiving circuit are respectively connected with the two ends of the power supply input of the sound detection circuit and the voice module, and the two ends of the power supply output of the sound detection circuit are respectively connected with the two ends of the power supply input of the control circuit; two signal output ends of the control circuit are respectively connected with a trigger signal input end of the counter and a trigger signal input end of the voice module; the signal output end of the wireless receiving circuit is connected with the zero clearing signal input end of the counter; and two audio output ends of the voice module are respectively connected with two wiring ends of the loudspeaker.

Further, the switching power supply is an alternating current to direct current switching power supply module.

Further, the voice module is a recording voice module.

Further, the wireless receiving circuit comprises a wireless receiving circuit module, relays, resistors and NPN triodes, wherein the wireless receiving circuit module is connected through circuit board wiring, a pin 1 of a positive power input end of the wireless receiving circuit module is connected with a positive power input end of a first relay, a positive electrode of a second relay and a control power input end of the second relay, a pin 3 of a negative power input end of the wireless receiving circuit module is connected with emitting electrodes of the two NPN triodes, two pins 4 and 5 of two output ends of the wireless receiving circuit module are respectively connected with one ends of the two resistors, the other ends of the two resistors are respectively connected with bases of the two NPN triodes, and collecting electrodes of the two NPN triodes are respectively.

Further, the sound detection circuit comprises an electret microphone, an adjustable resistor, a ceramic chip capacitor, a relay, an NPN triode and a PNP triode, wherein the electret microphone, the adjustable resistor, the ceramic chip capacitor, the relay, the NPN triode and the PNP triode are connected through a circuit board in a wiring mode, one end of the adjustable resistor is connected with an emitting electrode of the PNP triode and an input end of a relay control power supply, the other end of the adjustable resistor is connected with one end of the ceramic chip capacitor and one end of the electret microphone, the other end of the ceramic chip capacitor is connected with a base electrode of the NPN triode, a collecting electrode of the NPN triode is.

Furthermore, the control circuit comprises two relays which are connected through a circuit board in a wiring mode, the positive power supply input ends of the two relays are connected, and the negative power supply input ends of the two relays are connected.

The utility model has the advantages that: this novel convenient to use can convenient installation use in the classroom of needs, and in the last class of study etc. under the condition that the mr can not arrive the classroom, the mr can conveniently open or close equipment through wireless non-contact to can count the digit zero clearing by non-contact control counter. In this novel application, in the study course etc., when sound is very little in the classroom (for example, the sound that turns over books etc. and produce), sound detection circuit not output signal gets into the counter, when the involuntary student speaks etc. and produces great sound, sound detection circuit will control the counter and carry out once and accumulate the count once speaking, follow-up mr arrives behind the classroom, just can directly perceivedly know the study course of study according to the count number, how many times of the incoordination sound number that can influence other students' study altogether produced, the study course atmosphere management of promoting good study provides data support (for example the teacher masters the great sound that the study course produced and speaks the number of times too much and just can follow-up know, carry out the wholesale education to the involuntary student, make its correction shortcoming, and then provide support for producing few incoordination sound as far as possible in the study course later). In this is novel, when the every time not autonomic student self-study class sends discordant sound, can also play pronunciation through voice module and warn, make other students study in good study atmosphere as far as possible. Based on the above, so this novel application prospect that has.

Drawings

The invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a circuit diagram of the present invention.

Fig. 3 is a block diagram of the present invention.

Detailed Description

As shown in fig. 1 and 3, an artificial intelligence education supervision device comprises a switching power supply 1, a wireless remote control panel 2, a counter 3, a voice module 4 and a loudspeaker 5; the device also comprises a wireless receiving circuit 6, a sound detection circuit 7 and a control circuit 8; the teacher of the wireless remote control board 2 carries with him, the switching power supply 1, the counter 3, the voice module 4, the loudspeaker 5, the wireless receiving circuit 6, the sound detection circuit 7 and the control circuit 8 are installed on the circuit board and are electrically connected, the circuit board is installed at the lower end in the element box 9, and the element box 9 is installed on the middle wall of the classroom platform through four holes around the rear end of the element box.

As shown in fig. 1 and 2, the switching power supply a is a finished product of a switching power supply module with model MP-U35D12V, which is converting from ac 220V to dc 12V, and has a power of 50W. The wireless remote control board A5 is a finished wireless remote control board of a model TX315B1 wireless transmitting and receiving assembly, is arranged in a shell and is provided with a special battery for a 12V wireless transmitting circuit, and four transmitting key switches of the wireless remote control board are positioned outside four openings at the upper end of the shell. The counter A1 is a counter finished product of model ST76, the working voltage of the counter finished product A1 is alternating current 220V, the counter finished product A1 is provided with non-voltage trigger signal terminals 12 and 13 pins and a zero clearing key QL, when the two non-voltage trigger signal terminals 12 and 13 pins are closed once, the counter A1 carries out one-time accumulated counting, when the zero clearing key QL is pressed once, the counting of the counter A1 is cleared, the display screen 31 of the counter finished product A1 is positioned outside the front end opening of the element box 9, and the counter A1 can display 999999 counting numbers at most (other pins are suspended in the embodiment). The voice module A3 is a finished product of a recording voice module of model ISD1820, and is provided with two power terminals 1 and 2 pins, two audio output ends 7 and 8 pins (other pins are suspended in the embodiment), a triggering playback key C and a recording key, wherein the recording key is pressed to speak towards the microphone of the voice module in application, the voice module A3 can record voice signals for 10 seconds at most, and the voice module A3 can play the recorded voice signals through a loudspeaker B1 once every time the triggering playback key C is pressed down (an element box 9 is opened during recording); speaker B1 is a moving coil speaker. The wireless receiving circuit comprises a wireless receiving circuit board finished product A4 (wireless receiving circuit module) of a model TX315B1 wireless transmitting and receiving component, relays K4 and K5, resistors R and R1, NPN triodes T3 and T4, the wireless receiving circuit board A4 is connected with a positive power supply input end 1 pin of a wireless receiving circuit board A4, a positive power supply input end of a first relay K4, a positive electrode of a second relay K5 and a control power supply input end, a negative power supply input end 3 pin of a wireless receiving circuit board A4 is connected with emitters of two NPN triodes T3 and T4, two output ends 4 and 5 pins (the rest pins are suspended) of a wireless receiving circuit board A4 are respectively connected with one ends of two resistors R and R1, the other ends of the two resistors R and R1 are respectively connected with bases of two NPN triodes T3 and T4, and collectors of the two NPN triodes T3 and T4 and negative power supply input ends of the two relays K4 and 5 are respectively connected. The sound detection circuit comprises an electret microphone B, an adjustable resistor RP, a ceramic chip capacitor C, a relay K, an NPN triode T1 and a PNP triode T2, wherein the electret microphone B, the adjustable resistor RP, the PNP triode T2 and the relay K are connected through circuit board wiring, one end of the adjustable resistor RP is connected with an emitting electrode of the PNP triode T2 and a control power supply input end of the relay K, the other end of the adjustable resistor RP is connected with one end of the ceramic chip capacitor C and one end of the electret microphone B, the other end of the ceramic chip capacitor C is connected with a base electrode of the NPN triode T1, a collector electrode of the NPN triode T1 is connected with a base electrode of the PNP triode T2, a collector electrode of the PNP triode T2 is connected with a positive power supply input end. The control circuit comprises two relays K2 and K3 which are connected through a circuit board in a wiring mode, positive power supply input ends of the two relays K2 and K3 are connected, and negative power supply input ends of the two relays K2 and K3 are connected.

As shown in fig. 2, two pins 1 and 2 at the power input end of the switching power supply a, two pins 8 and 9 (the rest pins are not suspended) at the power input end of the counter a1, and two poles of the ac 220V power supply are respectively connected by leads, and two pins 3 and 4 at the power output end of the switching power supply a and two pins 1 and 3 of the wireless receiving circuit board a4 at the power input end of the wireless receiving circuit are respectively connected by leads; the normally open contact end and the negative power input end of a relay K5 at the two ends of the power output of the wireless receiving circuit, one end of an adjustable resistor RP at the two ends of the power input of the sound detection circuit, the emitter of an NPN triode T1 and the pins 1 and 2 at the two ends of the power input of the voice module A3 are respectively connected through leads, and the normally open contact end and the negative power input end of the relay K5 at the two ends of the power output of the sound detection circuit and the positive power input end and the negative power input end of a relay K3 at the two ends of the power input of the control circuit; two signal output ends of the control circuit are respectively connected with a control contact end and a normally open contact end of a relay K3, a control contact end and a normally open contact end of a relay K2, a 12 pin and a 13 pin of a trigger signal input end of a counter A1 and two contacts under a C key of a voice module trigger playback key through leads; the signal output end relay K4 control contact end and normally open contact end of the wireless receiving circuit are respectively connected with the two contacts under the zero clearing key QL of the zero clearing signal input end of the counter A1 through leads; the two audio output ends 7 and 8 pins of the voice module A3 and the two terminals of the loudspeaker B1 are respectively connected through wires.

As shown in figure 2, this novel convenient to use, can the convenient installation use in the classroom of needs, at the circumstances in the classroom that mr such as last lesson can't reach, mr can conveniently open or close equipment through wireless non-contact to can the non-contact control counter count the digit zero clearing. After the 220V ac power supply enters pins 1 and 2 of the switching power supply a (while the counter a1 is in the power-on working state), the switching power supply a outputs a stable dc 12V power supply from pins 3 and 4 under the action of its internal circuit, and enters the two ends of the power supply input of the wireless receiving circuit, so that the wireless receiving circuit is in the power-on working state. In the wireless receiving circuit, when a teacher needs to detect the class condition of a student before a student goes class, the teacher presses a second wireless signal transmitting key S2 of a portable wireless remote control board A5, so that the wireless remote control board A5 transmits a second wireless closing signal, a wireless receiving circuit board A4 outputs a high level after receiving the second wireless closing signal, the high level is reduced voltage and limited current through a resistor R1 and enters a base electrode of an NPN triode T4, then the NPN triode T4 conducts a collector thereof to output a low level and enters a power input end of a positive electrode of a relay K5, because the positive electrode of the relay K5 and the control power input end are connected with A3 pin of a stabilized voltage power supply A, the relay K5 can be electrically attracted to close the control power input end and a normally open contact end, and the normally open contact end of the relay K5 are connected at the moment, because the sound detection circuit and the power input ends of the voice module A3 are connected with the normally, the sound detection circuit and the voice module a3 will be in power-on operation at this time. When the teacher needs to close the novel non-use state, the teacher presses the second wireless signal emission key S2 of the wireless remote control board A5 again, so that the wireless remote control board A5 emits a second wireless open-circuit signal, 5 feet of the wireless receiving circuit board A4 stop outputting a high level to enter the base of the NPN triode T4 after receiving the two wireless open-circuit signals, then the NPN triode T4 stops outputting a low level to enter the positive power input end of the relay K5 after the collector of the NPN triode T4 is cut off, the relay K5 is powered off and does not attract the control power input end and the normally open contact end to be open, and the sound detection circuit and the voice module A3 are in a power-off working state; through the aforesaid, the mr just can make things convenient for non-contact control originally novel whether be in operating condition.

As shown in fig. 2, in the sound detection circuit, the counter a1 and the voice module A3, if a large sound is produced by an involuntary student speaking during a lesson, the electret microphone B receives the sound and converts the sound signal into a corresponding audio signal, the audio signal is coupled into the base of the NPN triode T1 (the base voltage is higher than 0.7V) through the ceramic chip capacitor C, the NPN triode T1 is turned on and outputs a low-level signal from the collector thereof to the base of the PNP triode T2, so that the PNP triode T2 is turned on and outputs a high level signal from the collector thereof to the positive power input end of the relay K, and since the negative power input end of the relay K is connected with the 4 pins of the switching power supply a, the relay K can electrically pull the control power input end and the normally open contact end of the relay K to be closed. Because relay K control power supply input end and switching power supply A's 3 feet link to each other, relay K normally open contact end and two relay K3 of control circuit, K2 anodal power supply input end are connected, relay K3, K2 negative pole power supply input end and switching power supply A's 4 feet are connected, so, relay K3 this moment, K,2 can get the electricity respectively and pick up its control contact end and normally open contact end closure, because, relay K3 control contact end, normally open contact end and counter A1's no voltage trigger signal wiring terminal 12 and 13 feet are connected respectively, so whenever the involuntary student sends great sound in the classroom, counter A1 can carry out once under its internal circuit effect and count (no voltage trigger signal wiring terminal 12 and 13 feet are closed once), the involuntary student of many times sends great sound counter A1 and just carries out many times and counts accumulatively. Because the relay K2 control contact end, the normally open contact end and the trigger signal input end of the voice module A3 trigger the two contacts under the playback key C to be respectively connected, when an involuntary student in a classroom makes a loud sound, the voice module A3 plays the audio signal pre-recorded by the voice module A3 through the loudspeaker B1 once under the action of the internal circuit (the recorded audio content in the embodiment is 'please not to influence the study of other people'), the involuntary student in the classroom makes a loud sound many times, the voice module A3 plays the pre-recorded audio signal through the loudspeaker B1 many times, and thus the involuntary student can know that the behavior of the involuntary student affects the study of other people after hearing the voice and correct the behavior of the involuntary student once in time. In practical use, during class study, if sound in a classroom is small (such as book turning and student whisper and whisper communication learning content), the electret microphone B converts the sound signal into a corresponding audio signal after receiving the sound, the base voltage of the signal, which enters the NPN triode T1 through the ceramic chip capacitor C coupling, is lower than 0.7V, then the NPN triode T1 and the PNP triode T2 are not conducted, the relays K, K3 and K2 are not powered and attracted, the counter a1 does not accumulate counting, the voice module A3 does not play voice content, and it is ensured that the counter a1 does not count by mistake and the voice module A3 does not play voice by mistake under normal conditions. In the novel structure, the installation technician can change the sensitivity of the detected sound by adjusting different resistance values of the adjustable resistor RP of the sound detection circuit before use, when the resistance value of the adjustable resistor RP is adjusted to be small, the working voltage of the electret microphone B is increased, the detection sensitivity is increased (lower sound signals can also cause the base voltage coupled to the NPN triode T1 through the ceramic chip capacitor C to be higher than 0.7V), when the resistance value of the adjustable resistor RP is adjusted to be large, the working voltage of the electret microphone B is reduced, the detection sensitivity is reduced (the larger sound signals can cause the base voltage coupled to the NPN triode T1 through the ceramic chip capacitor C to be higher than 0.7V), the technician can respectively send out sounds with different sizes during specific adjustment, the base voltage of the NPN triode T1 is higher than 0.7V under the required sound intensity (decibel) to further conduct the relay, the K, the, K2, K3 get the electricity to pick up, and follow-up counter A1 counts, and pronunciation module A3 plays the pronunciation. In this is novel, sound is less than certain back in the classroom, and the base voltage that is coupled to NPN triode T1 through ceramic chip electric capacity C is less than 0.7V, and counter A1 no longer counts, and pronunciation are no longer broadcast to pronunciation module A3, for having the next time in the detection classroom that the involuntary student makes a sound and prepares, after this novel resistance of adjusting adjustable resistance RP, when surveying sound 55 decibels, just can satisfy self-study class environment needs (the general sound of people speaks) basically.

As shown in fig. 2, in the present invention, when the sound in the classroom is small (for example, the sound generated by turning a book or the like) in a lesson or the like, the sound detection circuit does not output a signal to the counter a1, when the involuntary student speaks to generate larger sound, the sound detection circuit controls the counter A1 to count up once when speaking once, and after the subsequent teacher goes to the classroom, the number of the discordant sounds which affect the learning of other students can be visually known according to the counting number, and data support is provided for promoting good atmosphere management of the study (for example, a teacher can know that the speaking times of the larger sounds generated by the study are too many to subsequently know, criticize and educate the non-discipline students and correct the defects, and support is provided for generating the discordant sounds as little as possible in the future study). In the utility model, when the accumulated digits of the counter A3 need to be cleared, a teacher presses a first wireless signal emission key S1 of a portable wireless remote control board A5, so that the wireless remote control board A5 emits a billion wireless closing signal, 4 pins of a wireless receiving circuit board A4 can output high level after receiving one path of wireless closing signal, the high level is reduced voltage and limited current through a resistor R and enters a base electrode of an NPN triode T3, then the NPN triode T3 is conducted, a collector electrode of the wireless receiving circuit board A is output low level and enters a positive power input end of a relay K4, because the positive power input end of the relay K4 is connected with 3 pins of a stabilized voltage power supply A, the relay K4 can be electrified to attract the control contact end and a normally open contact end of the relay K35to be closed, because two contacts under the clear key QL of the counter A1 are respectively connected with the K control contact end and the normally open contact end, two contacts under, the counter A1 clears the counting number under the function of the counter A1; then, the teacher presses the first wireless signal transmitting button S1 of the wireless remote control board a5 once again, so that the wireless remote control board a5 transmits a first path of wireless open-circuit signal, the wireless receiving circuit board a4 receives the first path of wireless open-circuit signal, and then 4 feet of the wireless receiving circuit board a4 stop outputting a high level to enter the base of the NPN triode T3, so that the NPN triode T3 stops, the collector thereof does not output a low level to enter the positive power input end of the relay K4, the relay K4 loses power and does not attract the control contact end and the normally open contact end to open, and then two contacts under the zero clearing button QL key of the counter a1 are not closed any more, so that the accumulated counting preparation is made for the next detection. In this novel, the audio signal of voice module A3 output can enlarge through the power amplifier board and drives speaker B1 vocal, obtains bigger suggestion sound effect. In fig. 2, relays K, K2, K3, K4, K5 are DC4100 type 12V miniaturised relays; the specification of the adjustable resistor RP is 10K, and the model of the ceramic chip capacitor C is 1 muF; the models of NPN triodes T1, T3 and T4 are 9013; the model of the PNP triode T2 is 9012; resistor R, R1 is 1K; the electret microphone B is a loose brand high gain electret microphone finished product.

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but rather can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. An artificial intelligence education supervision device comprises a switch power supply, a wireless remote control board, a counter, a voice module and a loudspeaker; it is characterized in that the device also comprises a wireless receiving circuit, a sound detection circuit and a control circuit; the switch power supply, the counter, the voice module, the loudspeaker, the wireless receiving circuit, the sound detection circuit and the control circuit are arranged in the element box and are electrically connected; the power input ends of the switching power supply and the counter are respectively connected with two poles of an alternating current power supply, and the power output ends of the switching power supply are respectively connected with the power input ends of the wireless receiving circuit; the two ends of the power supply output of the wireless receiving circuit are respectively connected with the two ends of the power supply input of the sound detection circuit and the voice module, and the two ends of the power supply output of the sound detection circuit are respectively connected with the two ends of the power supply input of the control circuit; two signal output ends of the control circuit are respectively connected with a trigger signal input end of the counter and a trigger signal input end of the voice module; the signal output end of the wireless receiving circuit is connected with the zero clearing signal input end of the counter; and two audio output ends of the voice module are respectively connected with two wiring ends of the loudspeaker.

2. An artificial intelligence educational supervision apparatus according to claim 1 wherein the switching power supply is an ac to dc switching power supply module.

3. An artificial intelligence educational supervision apparatus according to claim 1 wherein the voice module is a recorded voice module.

4. An artificial intelligence education and supervision device according to claim 1, wherein the wireless receiving circuit comprises a wireless receiving circuit module, relays, resistors and NPN triodes, which are connected through wiring of a circuit board, a pin 1 of a positive power input terminal of the wireless receiving circuit module is connected with a positive power input terminal of a first relay and a positive power input terminal of a second relay and a control power input terminal, a pin 3 of a negative power input terminal of the wireless receiving circuit module is connected with emitters of the two NPN triodes, two pins 4 and 5 of two output terminals of the wireless receiving circuit module are respectively connected with one ends of the two resistors, the other ends of the two resistors are respectively connected with NPN bases of the two triodes, and NPN collecting electrodes of the two triodes are respectively connected with negative power input terminals of the.

5. The apparatus according to claim 1, wherein the sound detection circuit comprises an electret microphone, an adjustable resistor, a ceramic capacitor, a relay, an NPN transistor, and a PNP transistor, which are connected via a wiring of a circuit board, one end of the adjustable resistor is connected to an emitter of the PNP transistor and an input terminal of a control power source of the relay, the other end of the adjustable resistor is connected to one end of the ceramic capacitor and one end of the electret microphone, the other end of the ceramic capacitor is connected to a base of the NPN transistor, a collector of the NPN transistor is connected to a base of the PNP transistor, a collector of the PNP transistor is connected to an input terminal of a positive power source of the relay, and the other end of the electret microphone is connected to an.

6. An artificial intelligence educational supervision apparatus according to claim 1, wherein the control circuit comprises two relays connected via wiring on a circuit board, the two relays being connected at positive power input terminals and at negative power input terminals.

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