CN210955536U - Frequency modulation hearing oral teaching system - Google Patents
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- CN210955536U CN210955536U CN201921031811.2U CN201921031811U CN210955536U CN 210955536 U CN210955536 U CN 210955536U CN 201921031811 U CN201921031811 U CN 201921031811U CN 210955536 U CN210955536 U CN 210955536U
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Abstract
The utility model provides a frequency modulation hearing oral education system, includes year end frequency modulation transmitting system and frequency modulation receiving terminal, year end frequency modulation transmitting system includes intelligence broadcast accuse machine, frequency modulation transmitting subsystem includes frequency modulation transmitter, feeder and antenna, the frequency modulation receiving terminal is the earphone, frequency modulation transmitter is by transmitter power module, transmitter owner controller module, transmitter demonstration and button module, audio signal input preprocessing module, signal modulation, high frequency signal amplification module group one-tenth, the audio output end of intelligence broadcast accuse machine connects the audio input end of frequency modulation transmitter, and the radio frequency output end of frequency modulation transmitter carries out the transmission of frequency modulation signal through feeder connection antenna. The system is simple and convenient to install and easy to maintain later, the class transmitting end and the class receiving end are used for playing the listening spoken language learning courseware, the defect that the individuation of the class transmitting end is insufficient is overcome, and teachers can arrange learning contents, such as contents with high fast class listening difficulty and basic contents of poor class listening, according to the characteristics of classes carried by the teachers.
Description
Technical Field
The utility model relates to a teaching system based on wireless frequency modulation transmission and wireless frequency modulation receive, especially concentrate training study at the school and learn for purpose english listening comprehension spoken language learning system.
Background
With the reform of middle school entrance examination and college entrance examination in English which is gradually promoted in China, the requirements for English listening comprehension and spoken language ability of students are gradually increased, and many schools want to deal with and solve the problems. There are several solutions to the above-mentioned needs:
firstly, hardware facilities such as a voice classroom built in a school are utilized to be used alternately. However, due to the difference of economic levels of cities in one line, two lines, three lines and four lines all over the country, most of schools have hardware facilities far from meeting the requirement of students on learning listening voices. Thousands of students in a whole school take turns using a limited number of hundreds of devices, and due to various administrative problems, students can actually use the voice classroom only 1-2 lessons per week. In addition, many middle and primary schools stipulate that students are not allowed to carry electronic devices such as mobile phones, MP3, IPAD, and the like in schools. Therefore, during the school period, the students can hear English materials without any other way except for English listening contents played by teachers in a unified way. If the learning language has no language environment, the learning effect is greatly reduced.
Secondly, some schools still adopt the most original mode, namely, when each teacher goes on a class, a recorder is carried by hand to play in a classroom, the method can only be used for listening, and the students are difficult to hear clear consonants, turbid consonants, continuous reading and the like in English pronunciation through the sound quality effect of loudspeaker external playing, the volumes heard by the students sitting in the front row and the students sitting in the back row are greatly different, and in the playing process, the adjacent classes are also influenced. Moreover, the audio files matched with the current textbooks are hearing files, and are not suitable for the repeated reading and follow-up reading of students, a teacher needs to manually pause on a recorder, for example, a sentence of text is played, the teacher presses a pause key, the students read the text, the teacher then presses a play key to continue playing the sentence, then presses the pause key, the students read the sentence again, and the teacher then presses the play key. The operation is very inconvenient. The teaching mode which depends on the subjective initiative of the teachers is difficult to persist for a long time, and the teachers in earnest charge can persist for a period of time, and some teachers are afraid of trouble, so that the students can go home to listen to the magnetic tape, whether the students go home to execute the teaching mode, how the execution degree and the effect are, and the teachers cannot control the teaching mode.
Thirdly, a spoken language evaluation system, which utilizes the language recognition technology, a network big data platform and the APP terminal of parents. The spoken language evaluation software is installed in a school computer room, the system mainly carries out simulated spoken language examination scenes and spoken language examination questions, after a student finishes recording, the software system can grade read contents, a teacher can issue spoken language homework at an APP end at ordinary times, children go home and complete homework by means of a parent's mobile phone, but the system must have the supervision and guidance of the parent. This approach places very high demands on the hardware infrastructure. The equipment used for school machine rooms is low in per-capita utilization rate due to the fact that the number of people is large, the number of equipment is small. If the equipment needs to be added, the problems of field, classroom, expense, network system construction, sufficient bandwidth and equipment management are needed. Long project period, etc. These links may cause further good items to be impractical.
In summary, there are still many problems in some of the above ways for spoken language training of middle and primary school foreign language listening: the English listening comprehension of the student has less learning time, is limited by hardware conditions and cannot freely learn at any time and any place. When special class needs to be arranged in the existing English listening teaching, no learning content is played in the class time and the noon break time. Some of the above approaches require the teacher to prepare lessons, give lessons or borrow equipment, prepare audio files for listening to spoken language, and also perform the operation of the equipment. It is very troublesome. Most of the Chinese schools have fund shortage, and no practical construction can meet the voice classrooms of thousands of students in the schools. If the hardware facilities of the middle and primary schools of the three-four-wire city are constructed to be the same as those of the first-line city and the second-line city, a large amount of capital is required to be invested in the country, and the implementation is difficult for the school in a short period. For students, a spoken language course twice a week cannot form a learning habit, and can not perform systematic and progressive learning, and the spoken language course can only be used for checking the learning condition or listening tests. The 'dumb English' of the student is not completely caused by insufficient knowledge mastering, a large part of problems are caused by the fact that the student is not willing to speak in mouth, but is not willing to speak in mouth, and a large part of problems are caused by the fact that the student pronounces the sound nonstandard, is not confident and does not speak in good meaning.
At present, a great number of learning materials and learning modes are available in the market, the most common mode is realized by using an APP client, and the most common mode depends on active learning of students and supervision of parents. Especially, students in middle and primary schools have low autonomy and consciousness, and if a mobile phone or a tablet personal computer is given to a child, no parents can keep close to the mobile phone or the tablet personal computer, most of the children can certainly play games. At present, the allocation of Chinese education resources is seriously unequal, good urban education resources are good, and the teacher's resource power is strong. But county level city schools have poor hardware facilities, weak teachers and resources and low teacher level. There are many teachers in the countryside who have nonstandard spoken language pronunciation, schools have insufficient hardware equipment and software resources for teachers and students, and students may learn "country english".
Although the platform based on the network and the big data has strong functions, the investment is huge, and schools need to invest hundreds of millions to build a network platform and a server. Students need to purchase several thousand yuan of tablet computers to realize language learning.
SUMMERY OF THE UTILITY MODEL
For overcoming the shortcoming that above-mentioned prior art exists, the utility model aims at providing a frequency modulation english listening comprehension spoken language teaching system.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a frequency modulation hearing oral education system, includes year end frequency modulation transmitting system and frequency modulation receiving terminal, year end frequency modulation transmitting system includes intelligence broadcast accuse machine, frequency modulation transmitting subsystem includes frequency modulation transmitter, feeder and antenna, the frequency modulation receiving terminal is the earphone, frequency modulation transmitter is by transmitter power module, transmitter owner controller module, transmitter demonstration and button module, audio signal input preprocessing module, signal modulation, high frequency signal amplification module group one-tenth, the audio output end of intelligence broadcast accuse machine connects the audio input end of frequency modulation transmitter, and the radio frequency output end of frequency modulation transmitter carries out the transmission of frequency modulation signal through feeder connection antenna.
Further, the earphone is for possessing the wireless frequency modulation headphone of FM broadcast reception function and sound amplification echo function, the earphone comprises power module, frequency modulation decoding module, receiving terminal operation display module, receiving terminal host system, loudspeaker, microphone input module, microphone public address module, receiving terminal operation display module and receiving terminal host system electric connection, through each function button operation, receiving terminal host system shows corresponding information through the port drive display screen be connected with the display screen in real time, simultaneously through the control port of being connected with frequency modulation decoding module and microphone public address module, control corresponding function module's mode of operation and operating condition.
Furthermore, the intelligent broadcasting controller comprises a broadcasting controller main control module, an audio digital decoding module, a broadcasting controller power supply module, a clock timing module, a broadcasting controller operation interface module, a controlled output power supply interface module and an audio analog processing circuit, wherein the broadcasting controller power supply module provides direct current power supply required by the operation of each module in the intelligent broadcasting controller by transforming, rectifying and stabilizing external input alternating current, the broadcasting controller operation interface module comprises a display screen and keys, the broadcasting controller main control module receives various commands input by the keys and displays real-time operation information by driving the display screen, the audio analog processing circuit comprises a microphone input interface, a volume adjusting circuit, an audio combiner and an amplifying circuit, and the audio analog processing circuit completes the amplitude adjustment of audio analog signals output by the audio digital decoding module and the microphone, and amplifying and combining the signals, and outputting analog audio signals to the frequency modulation transmitter through an audio interface of the intelligent broadcast control machine on the intelligent broadcast control machine.
The broadcasting control machine main control module is triggered by the clock timing module to execute a preset timing program command, and the controlled output power supply interface module can be connected or disconnected with an input alternating current power supply of a frequency modulation transmitter connected to a controlled output power supply socket of the intelligent broadcasting control machine under the control of a level signal of the broadcasting control machine main control module.
Furthermore, when the main control module of the player control machine sends a playing instruction to the audio digital decoding module, the audio digital decoding module decodes the specified audio file stored on the memory medium and outputs an analog audio signal to the audio analog processing circuit module.
Furthermore, the frequency modulation hearing oral language teaching system further comprises a class-end frequency modulation transmitting system, and the class-end frequency modulation transmitting system comprises a micro-power frequency modulation transmitter and an audio playing device.
Preferably, the power interface of the frequency modulation transmitter is connected with the power management interface of the intelligent broadcast control machine.
As the utility model discloses a technical scheme who uses: the utility model discloses can be through using grade transmitting system and receiving terminal broadcast listening comprehension spoken language study courseware utilizes the teaching activities that the early study time of the current english of school goes on. And by utilizing the early reading time, students wear the earphones to perform learning activities such as English listening, reading following, dictation and the like. The problem that most of the students in schools learn English early is that the students freely learn to read what, the students are noisy, the students still suffer from the influence of the students beside the students when covering the ears, and the learning and memory efficiency is very low is solved. The purpose and goal of student learning is not clear, nor is there a systematic, scientific learning plan. Even if a teacher or a class representative carries with the reading, the standard and the accuracy of the pronunciation of the reader can not be ensured.
The utility model discloses can also play audio courseware through using class transmission end and receiving terminal. The shortcoming of insufficient individuation of the grade transmitting end is overcome, and teachers can arrange learning contents according to the characteristics of the classes, such as contents with high difficulty in fast class listening and basic contents for poor class listening. If the adjacent classes are used simultaneously, the micro-power transmitters are set to different frequencies. Also can arrange the audition test of hall english.
The utility model discloses an in-process, the audio input of frequency modulation broadcast transmitter is connected to the audio output of accuse machine is broadcast to intelligence, and the radio frequency output of frequency modulation broadcast transmitter carries out FM frequency modulation signal transmission through the feeder connection antenna. And a power supply interface of the frequency modulation broadcast transmitter is connected with a power supply management interface on the intelligent broadcast control machine. The playing time and the playing content are set on the operation interface of the intelligent broadcast control machine, the frequency modulation broadcast transmitter can be switched on and off in a timing mode, and the appointed program content can be played in a timing mode. The student wears the earphone, sets up through demonstration and the operating module on adjusting the earphone, realizes listening to functions such as study program, volume control, the microphone of opening that the transmitter transmitted.
The utility model discloses a class transmitting terminal can comprise audio playback devices such as micropower FM transmitter and cell-phone, MP3, and the mr can freely operate the required audio file of broadcast, realizes the FM transmission in a class coverage. The receiving end can be worn by students to realize listening. The hearing spoken language reading courseware of the present invention is an audio file (including but not limited to these files) in MP3 or other sound playing formats. The courseware is characterized in that: audio files (including but not limited to the files) matched with the teaching materials are split into texts according to sentences in a computer through audio editing software. The sentences are separated by a certain time, the students can listen to one sentence and then read the sentence, the reading time is the separation time, and the separation time is 1-5 seconds longer than the time of the original sentence. (including but not limited to this time) or to simulate how and how fast the teacher's dictation is being made into word-specific intensive exercises, or sentence-pattern intensive exercise courseware.
The utility model discloses a beneficial effect is: the system is simple and convenient to install and easy to maintain in the later period. The system is very simple to build, complex wiring is not needed, only one office needs to be found to put one set of frequency modulation broadcast transmitter and one intelligent broadcast controller, the frequency modulation broadcast transmitter is connected with the antenna through a feeder, and the antenna is installed on the roof. The installation is simple and convenient, quick, just can build the completion one day. The method is easy to realize.
The learning mode of the existing English early self-study is changed, the English early self-study is unattended, the extra workload of a teacher is not increased, the burden of the teacher is reduced, and the special intensive training of the unified organization can be performed in class classrooms only by utilizing the existing early self-study time of the school; the teacher does not need to go to school in advance to open the equipment to prepare the played courseware, and only needs to set time and content once at the beginning of the school. The machine can be automatically started, automatically shut down and automatically played according to the set time and the set content. The English early self-study with free diffusion, no target, no guidance and no direct result is changed into the special intensive training with organization, content, target and standardization, the dictation is not required to be reported manually, the dictation score is reported to a teacher by class representative statistics, and the teacher can master the learning condition of students.
The utility model discloses the system can help the student to establish good study custom, and the early reading fixed time of 2-3 days per week lets the student follow the original sound and carries out the follow-up reading of word or text, dictation. The brain and body are gradually accustomed to learning in a highly centralized and attentive state. And through the stimulation of sound, a comprehensive memory mode comprising visual memory and auditory memory is formed, so that students can slowly develop good learning habits. The utility model discloses a listening comprehension spoken language is followed and is read courseware and other listening comprehension data use is MP3 format audio file, and is compatible high, and the resource is wide, obtains more easily.
Drawings
Fig. 1 is a schematic structural view of the working principle of the grade-end frequency modulation transmitting system of the utility model;
FIG. 2 is a schematic view of the working principle of the receiving end of the present invention;
fig. 3 is a schematic diagram of the class-end fm transmission system of the present invention;
in the figure: 1. a grade end frequency modulation transmitting system; 2. the intelligent broadcast control machine; 3. a frequency modulation transmitting subsystem; 4. a broadcast controller main control module; 5. an audio digital decoding module; 6, a power module of the broadcast controller; 7, a clock timing module; 8, operating an interface module of the broadcast control machine; 9. a controlled output power interface module; 10. an audio analog processing circuit; 11. a frequency modulated transmitter; 12. a feeder line; 13. an antenna; 14. a transmitter power supply module; 15 transmitter main controller module; 16. a transmitter display and key module; 17. the audio signal is input into a preprocessing module; 18. signal modulation; 19. a high-frequency signal amplification module; 20. a receiving end power supply module; 21. a frequency modulation decoding module; 22 receiving end operation display module; 23 receiving end main control module; 24. a horn; 25. a microphone input module; 26. a microphone sound amplification module; 27. a micropower frequency modulation transmitter; 28. and a playing device.
Detailed Description
The principles and advantages of the present invention will be further explained with reference to the drawings and examples.
Example 1
A frequency modulation hearing oral teaching system comprises a grade end frequency modulation transmitting system and a frequency modulation receiving end, wherein the grade end frequency modulation transmitting system 1 mainly comprises an intelligent broadcasting control machine 2 and a frequency modulation transmitting subsystem 3, and the frequency modulation transmitting subsystem is composed of a frequency modulation transmitter 11, a feeder line 12 and an antenna 13. The system can complete the timing playing and the frequency modulation transmission of the recorded voice file by the cooperative work among all the devices, the audio output end of the intelligent playing and controlling machine is connected with the audio input end of a frequency modulation transmitter, and the radio frequency output end of the frequency modulation transmitter is connected with an antenna through a feeder line to transmit frequency modulation signals. By using the grade transmitting system and the receiving end, the listening comprehension spoken language learning courseware is played, and the teaching activities are performed by utilizing the existing English early self-study time of the school.
The frequency modulation receiving end consists of a power supply module 20, a frequency modulation decoding module 21, a receiving end operation display module 22, a receiving end main control module 23, a loudspeaker 24, a microphone input module 25 and a microphone sound amplifying module 26. The receiving end operation display module 22 is electrically connected to the receiving end main control module 23, and through the operation of each function key, the receiving end main control module 23 drives the display screen to display corresponding information in real time through a port connected to the display screen, and controls the working mode and working state of the corresponding function module through a control port connected to the frequency modulation decoding module 21 and the microphone sound amplifying module 26. The FM decoding module 21 can complete the setting of functional parameters such as FM signals, frequency, volume and the like, and the turning on and off of the FM radio function under the control of the receiving end main control module 23. Therefore, the listening oral learning courseware played by the grade transmitting terminal is realized.
After hearing the received original sound, the student reads the sound towards the earphone and microphone input module 25, and the audio signal recorded by the microphone input module 25 is transmitted back to the earphone speaker 24 through the microphone sound amplification module 26, so that the sound amplification and return function is realized. The microphone input module 25 can realize the opening and closing of the microphone sound amplification function and the adjustment of the microphone sound amplification volume under the control of the main control module 23. The audio signals obtained by the frequency modulation decoding module 21 and the microphone sound amplifying module 26 are finally sent to the loudspeaker 24, so that the user can hear the sound emitted by the frequency modulation emitting system and the amplified sound of speaking himself.
Example 2
The utility model provides a frequency modulation hearing oral cavity language teaching system, includes grade end frequency modulation transmitting system, class end frequency modulation transmitting system, frequency modulation receiving terminal, grade end frequency modulation transmitting system includes intelligent broadcast accuse machine, frequency modulation transmitting subsystem includes frequency modulation transmitter, feeder and antenna, class end frequency modulation transmitting system includes micropower frequency modulation transmitter and audio playback equipment, the frequency modulation receiving terminal is the earphone, and frequency modulation transmitter 11 comprises transmitter power module 14, transmitter main control ware module 15, transmitter demonstration and button module 16, audio signal input preprocessing module 17, signal modulation 18, high frequency signal amplification module 19. The transmitter power module 14 performs ac-dc conversion on externally input ac power to provide dc voltage required for operation to other active modules inside the frequency modulation transmitter 11; the audio signal output by the audio processing circuit 10 of the intelligent broadcast controller 2 is input into the preprocessing module 17 through the audio signal to be filtered, amplitude-adjusted, amplitude-limited, weighted and the like, the processed input audio signal is subjected to frequency modulation on the carrier signal by the signal modulation module 18, and a frequency-modulated high-frequency signal is generated; the high-frequency signal amplifying module 19 is composed of a multi-stage amplifying link, and can amplify the modulated high-frequency signal outputted by the signal modulating module 18 to a target power stage by stage, and output the signal through a high-frequency interface. The high-frequency signal output by the high-frequency interface of the frequency modulation transmitter 11 is connected to an antenna 13 through a feeder 12, and the high-frequency electric signal is radiated to a space to be covered through the antenna 13, so that the wireless voice frequency modulation broadcasting function is completed.
The system mainly transmits through a class-end frequency modulation transmitting system and receives by a student receiving end. A wireless frequency modulation transmitting system at a class end is a system configuration of wireless frequency modulation broadcasting applied to a small-range space example scene. The device is composed of a micro-power FM transmitter 27 and an audio playing device 28 such as MP 3. The audio playing device 28 may be a mobile phone, an MP3 player, a VCD, a tape recorder, etc. (including but not limited to the above ones) having an audio playing function and an output port, and is connected to the input port of the micropower fm transmitter 27 and the audio output port of the audio playing device 28 such as MP3, etc. through modulation and single-stage amplification, the modulated high-frequency signal is transmitted through the built-in antenna, and is limited by a small radiation power, and wireless fm broadcasting in a small range can be realized. Students also take the earphones at the receiving end to listen and follow and read for study.
The class-end frequency modulation transmitting system is convenient for realizing small class teaching and personalized teaching, temporary audition testing in the hall and the like. The audio courseware is played by using the class transmitter and receiver. The shortcoming of insufficient individuation of the grade transmitting end is overcome, and teachers can arrange learning contents according to the characteristics of the classes, such as contents with high difficulty in fast class listening and basic contents for poor class listening. If the adjacent classes are used simultaneously, the micro-power transmitters are set to different frequencies. Also can arrange the audition test of hall english.
Example 3
The working process is as follows: the intelligent broadcast control machine 2 is composed of a broadcast control machine main control module 4, an audio digital decoding module 5, a broadcast control machine power supply module 6, a clock timing module 7, a broadcast control machine operation interface module 8, a controlled output power supply interface module 9 and an audio analog processing circuit 10. The broadcasting control machine power supply module 6 provides a direct current power supply required by the work of each module in the intelligent broadcasting control machine by carrying out voltage transformation, rectification and voltage stabilization on externally input alternating current; the broadcast control machine operation interface module 8 comprises a display screen and keys, and the broadcast control machine main control module 4 receives various commands input by the keys and displays real-time operation information by driving the display screen. The main control module 4 of the broadcast controller is triggered by the clock timing module 7 to execute the preset timing program command. When the main control module 4 of the broadcast controller sends a broadcast instruction to the audio digital decoding module 5, the audio digital decoding module 5 decodes a specified MP3 digital audio file stored in a memory medium such as an SD card or a usb disk, and outputs an analog audio signal to the audio analog processing circuit module 10. The audio analog processing circuit module 10 includes a microphone input interface, a volume adjusting circuit, an audio combiner, and an amplifying circuit, and can complete amplitude adjustment, amplification and combination of the audio digital decoding module 5 and the microphone output audio analog signals, and output analog audio signals to the fm transmitter 11 through the intelligent broadcast controller audio interface on the intelligent broadcast controller 2. The controlled output power supply interface module 9 can be connected or disconnected with an input alternating current power supply of the frequency modulation transmitter 11 connected to a controlled output power supply socket of the intelligent broadcast control machine under the control of the level signal of the broadcast control machine main control module 4.
The broadcasting control machine main control module is triggered by the clock timing module to execute a preset timing program command, and the controlled output power supply interface module can be connected or disconnected with an input alternating current power supply of a frequency modulation transmitter connected to a controlled output power supply socket of the intelligent broadcasting control machine under the control of a level signal of the broadcasting control machine main control module. When the main control module of the play controller sends a play instruction to the audio digital decoding module, the audio digital decoding module decodes the specified audio file stored on the memory medium and outputs an analog audio signal to the audio analog processing circuit module.
Example 4
Example 4 has substantially the same system framework and functions as those of embodiment 3, except that the audio digital decoding module can load audio files for listening to spoken language reading courseware. The listening reading courseware is an audio file (including but not limited to such files) in MP3 or other sound playing format. The courseware is characterized in that: audio files (including but not limited to the files) matched with the teaching materials are split into texts according to sentences in a computer through audio editing software. The sentences are separated by a certain time, the students can listen to one sentence and then read the sentence, the reading time is the separation time, and the separation time is 1-5 seconds longer than the time of the original sentence. (including but not limited to this time) or to simulate how and how fast the teacher's dictation is being made into word-specific intensive exercises, or sentence-pattern intensive exercise courseware.
It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Claims (9)
1. The utility model provides a frequency modulation hearing spoken language teaching system, includes grade end frequency modulation transmitting system and frequency modulation receiving terminal, its characterized in that: the grade end frequency modulation transmitting system comprises an intelligent broadcasting machine and a frequency modulation transmitting subsystem, the frequency modulation transmitting subsystem comprises a frequency modulation transmitter, a feeder line and an antenna, the frequency modulation receiving end is an earphone, the frequency modulation transmitter comprises a transmitter power module, a transmitter main controller module, a transmitter display and key module, an audio signal input preprocessing module, a signal modulation module and a high-frequency signal amplification module, an audio output end of the intelligent broadcasting machine is connected with an audio input end of the frequency modulation transmitter, and a radio frequency output end of the frequency modulation transmitter is connected with the antenna through the feeder line to transmit frequency modulation signals.
2. A frequency modulated hearing spoken language teaching system as claimed in claim 1 wherein: the earphone is for possessing the wireless frequency modulation headphone of FM broadcast receiving function and sound amplification echo function, the earphone comprises power module, frequency modulation decoding module, receiving terminal operation display module, receiving terminal host system, loudspeaker, microphone input module, microphone public address module, receiving terminal operation display module and receiving terminal host system electric connection, through each function button operation, receiving terminal host system shows corresponding information through the port drive display screen of being connected with the display screen in real time, simultaneously through the control port of being connected with frequency modulation decoding module and microphone public address module, control corresponding function module's mode of operation and operating condition.
3. A frequency modulated hearing spoken language teaching system as claimed in claim 1 wherein: the intelligent broadcasting controller comprises a broadcasting controller main control module, an audio digital decoding module, a broadcasting controller power supply module, a clock timing module, a broadcasting controller operation interface module, a controlled output power supply interface module and an audio analog processing circuit, wherein the broadcasting controller power supply module provides direct current power supply required by the operation of each module in the intelligent broadcasting controller by transforming, rectifying and stabilizing external input alternating current, the broadcasting controller operation interface module comprises a display screen and keys, the broadcasting controller main control module receives various commands input by the keys and displays real-time operation information by driving the display screen, the audio analog processing circuit comprises a microphone input interface, a volume adjusting circuit, an audio combiner and an amplifying circuit, and the audio analog processing circuit completes the amplitude adjustment of audio analog signals output by the audio digital decoding module and the microphone, and amplifying and combining the signals, and outputting analog audio signals to the frequency modulation transmitter through an audio interface of the intelligent broadcast control machine on the intelligent broadcast control machine.
4. A frequency modulated hearing spoken language teaching system as claimed in claim 3 wherein: the broadcasting control machine main control module is triggered by the clock timing module to execute a preset timing program command, and the controlled output power supply interface module can be connected or disconnected with an input alternating current power supply of a frequency modulation transmitter connected to a controlled output power supply socket of the intelligent broadcasting control machine under the control of a level signal of the broadcasting control machine main control module.
5. A frequency modulated hearing spoken language teaching system as claimed in claim 3 wherein: when the main control module of the play controller sends a play instruction to the audio digital decoding module, the audio digital decoding module decodes the specified audio file stored on the memory medium and outputs an analog audio signal to the audio analog processing circuit module.
6. A frequency modulated hearing spoken language teaching system as claimed in claim 3 wherein: the audio digital decoding module can load audio files of the listening oral language reading courseware.
7. A frequency modulated hearing spoken language teaching system as claimed in claim 1 wherein: the frequency modulation hearing oral language teaching system further comprises a class-end frequency modulation transmitting system, and the class-end frequency modulation transmitting system comprises a micro-power frequency modulation transmitter and an audio playing device.
8. A frequency modulated hearing spoken language teaching system as claimed in claim 1 wherein: and a power supply interface of the frequency modulation transmitter is connected with a power supply management interface on the intelligent broadcast control machine.
9. A frequency modulated hearing spoken language teaching system as claimed in claim 1 wherein: the frequency modulation transmitter is a frequency modulation broadcast transmitter.
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| CN112185188A (en) * | 2019-07-04 | 2021-01-05 | 武汉市乔益师电子有限公司 | Frequency modulation hearing oral teaching system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112185188A (en) * | 2019-07-04 | 2021-01-05 | 武汉市乔益师电子有限公司 | Frequency modulation hearing oral teaching system |
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