CN109936811A - Public address system is used in a kind of teaching - Google Patents
Public address system is used in a kind of teaching Download PDFInfo
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- CN109936811A CN109936811A CN201711348578.6A CN201711348578A CN109936811A CN 109936811 A CN109936811 A CN 109936811A CN 201711348578 A CN201711348578 A CN 201711348578A CN 109936811 A CN109936811 A CN 109936811A
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- amplifies
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Abstract
The invention discloses a kind of teaching public address systems, including mobile terminal (1), the terminal that amplifies (2), mobile terminal (1) is connected with the terminal that amplifies (2), it is characterized by also including audio signal processor I(3), audio signal processor II(4), setting amplifies a decibel tester (5) below the terminal that amplifies (2)；The mobile terminal (1) is connected by microphone (11), with microphone (11) converts the Sound Processor Unit (12) of digital signal, the CPU(13 being connected with Sound Processor Unit (12) for the audio signal that microphone (11) receive) sender unit (14) that is connected with CPU(13) forms.The present invention can be automatically adjusted according to speaker volume, keep volume suitable, while issue audible noise when glitch occurs for public address system, can be turned speaker volume down automatically, be reduced the discomfort of student.And it is possible to speaker volume is increased according to classroom noise, it is very convenient.
Description
Technical field
The present invention relates to teaching appliance field, in particular to public address system is used in a kind of teaching.
Background technique
Education is a national fundamental to the building of the country, and the most important thing of following motherland's development.In education, teacher is in classroom
On the quality given lessons, largely determine the situation that student receives an education.With the development of economy, traditional classroom is by small classroom
The scale of 40-50 people is developed to the large lectures more than nowadays many 100 people, therefore the loudspeaker of teaching enters the view of people
It is wild.
However teaching needs teacher or special personnel to adjust volume mostly with loudspeaker, and when church is excessively big
When, teacher is difficult to know whether the student of different zones listens to understand loudspeaker, if because ambient enviroment noise is too big,
Leading to the volume of loudspeaker cannot not heard clearly, while can be issued the ear-piercing of big decibel in loudspeaker generation glitch and be made an uproar
Sound, teacher need oneself de-regulation, teacher are caused to divert one's attention, and student needs that audible noise is waited to disappear, and affect mood of listening to the teacher.
Summary of the invention
In view of the above-mentioned problems in the prior art, the main purpose of the present invention is to provide a kind of teaching with amplifying is
System, to solve defect existing in the prior art.
In order to achieve the above object, present invention employs following technical solutions:
A kind of teaching public address system of the invention, including mobile terminal 1, the terminal that amplifies 2, mobile terminal 1 and 2 phase of terminal that amplifies
Even, further include audio signal processor I3, audio signal processor II4, the decibel test that amplifies below the terminal 2 that amplifies is set
Instrument 5；The mobile terminal 1 by microphone 11, being connected with microphone 11 converts number for the audio signal that microphone 11 receives
The Sound Processor Unit 12 of signal, the CPU13 being connected with Sound Processor Unit 12, the sender unit 14 being connected with CPU13 composition；Institute
Audio signal processor I3 is stated to be connected with CPU13；Decibel tester 5 that amplifies is connected with the terminal 2 that amplifies.
It is described amplify terminal 2 by signal receiver 21, the CPU22 that amplifies, receive amplify CPU22 instruction regulation 24 volume of speaker
Regulation unit 23, the speaker 24 of size form；The signal receiver 21 for receiving signal is connected with sender unit 14, and signal receives
Device 21 is connected with the CPU22 that amplifies, and the CPU22 that amplifies is connected with regulation unit 23, speaker 24；Amplify decibel tester 5 and the expansion
Sound CPU22 is connected.
Signal receiver 21 is electrically connected with sender unit 14 or is transmitted by signal.
Signal receiver 21 is the infrared receiver for receiving infrared ray, and sender unit 14 is the miaow for emitting infrared ray
Head.
Sender unit 14 is made of encoder 141, transmitter 142, and encoder 141 is electrically connected with transmitter 142；Signal
Receiver 21 is made of decoder 212, receiver 211, and receiver 211 is electrically connected with decoder 212.
Further, the system also includes the environment decibel tester 6 being arranged among classroom, the environment decibel is surveyed
Examination instrument 6 is connected with the terminal 2 that amplifies.
The environment decibel tester 6 is connected with the CPU22 that amplifies.
The present invention has the following advantages and beneficial effect:
The present invention can be automatically adjusted according to speaker volume, keep volume suitable, while when small event occurs for public address system
Barrier issues audible noise, can turn speaker volume down automatically, reduce the discomfort of student.And it is possible to be increased according to classroom noise
Speaker volume, it is very convenient.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 4.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below with reference in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is this
Invention a part of the embodiment, instead of all the embodiments.Embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings
Component description be not intended to limit the range of claimed invention, but be merely representative of selected embodiment of the invention.
Based on the embodiments of the present invention, those of ordinary skill in the art institute obtained without creative labor
There are other embodiments, shall fall within the protection scope of the present invention.
The present invention is further illustrated with specific embodiment below with reference to accompanying drawings.
Embodiment 1
As shown in Figure 1, a kind of teaching public address system of the invention, including mobile terminal 1, the terminal that amplifies 2, mobile terminal 1 with
The terminal that amplifies 2 is connected, and further includes audio signal processor I3, audio signal processor II4, is arranged in below the terminal 2 that amplifies
Amplify decibel tester 5；The mobile terminal 1 is connected the audio letter for receiving microphone 11 by microphone 11, with microphone 11
Number it is converted into Sound Processor Unit 12, the CPU13 being connected with Sound Processor Unit 12, the signal being connected with the CPU13 hair of digital signal
Device 14 is sent to form；The audio signal processor I3 is connected with CPU13；Decibel tester 5 and 2 phase of terminal that amplifies of amplifying
Even.
It is described amplify terminal 2 by signal receiver 21, the CPU22 that amplifies, receive amplify CPU22 instruction regulation 24 volume of speaker
Regulation unit 23, the speaker 24 of size form；The signal receiver 21 for receiving signal is connected with sender unit 14, and signal receives
Device 21 is connected with the CPU22 that amplifies, and the CPU22 that amplifies is connected with regulation unit 23, speaker 24；Amplify decibel tester 5 and the expansion
Sound CPU22 is connected.
Signal receiver 21 is electrically connected with sender unit 14 or is transmitted by signal.
In the use of the present invention, teacher has mobile terminal 1 with it, mobile terminal 1 is electrically connected with the terminal 2 that amplifies, amplifies
Terminal 2 is arranged at classroom rear.In use, the sound of teachers is converted into audio signal, audio signal by microphone 11
It is changed into digital signal by Sound Processor Unit 12, is transferred to CPU13, digital signal is sent to sound signal processing by CPU13
Device I3 is denoised, and audio signal processor I3 returns to CPU13 after digital signal is carried out processing denoising, and CPU13 will be gone again
Digital signal after making an uproar sends sender unit 14 to, after digital signal is sent to signal receiver 21 by sender unit 14,
After the CPU22 that amplifies is sent to audio signal processor II4 processing denoising, then returns to the CPU22 that amplifies and be sent to speaker 24
It amplifies.
Meanwhile decibel tester 5 that amplifies acquires the volume of speaker 24 in real time, converts digital volume for analog volume information
Information is sent to the CPU22 that amplifies.When digital volume information is greater than preset maximum threshold values in the CPU22 that amplifies, the CPU22 that amplifies hair
Instruction is sent to give regulation unit 23, regulation unit 23 regulates and controls speaker 24, reduces volume；It amplifies when digital volume information is less than
In CPU22 when preset minimum threshold values, the CPU22 that amplifies sends instructions to regulation unit 23, and regulation unit 23 regulates and controls speaker 24, makes
Volume increases.
Embodiment 2
As the preferred embodiment of embodiment 1, signal receiver 21 is the infrared receiver for receiving infrared ray in the present embodiment,
Sender unit 14 is the microphone for emitting infrared ray.
It is arranged such and significantly increases the movings range of teachers, while multiple groups can be set in classroom and amplified terminal
2, and infrared transmission is used, it can be to avoid wave interference between adjacent classroom.
Embodiment 3
As shown in Fig. 2, the preferred embodiment as embodiment 1, sender unit 14 is by encoder 141, transmitting in the present embodiment
Device 142 forms, and encoder 141 is electrically connected with transmitter 142；Signal receiver 21 is made of decoder 212, receiver 211, is connect
Device 211 is received to be electrically connected with decoder 212.
When in use, encoder 141 receives the digital signal of CPU13 transmission, is emitted after being encoded by transmitter 142,
After receiver 211 receives signal, it is sent to after decoder 212 is decoded, is sent to the CPU22 that amplifies.
Embodiment 4
It further include the environment decibel tester being arranged among classroom as the preferred embodiment of above-described embodiment, in the present embodiment
6, the environment decibel tester 6 is connected with the CPU22 that amplifies for the terminal 2 that amplifies.
Unlike the embodiments above, while using, environment decibel tester 6 is arranged in classroom or classroom
Window mouth acquires the noise in classroom or outside classroom in real time, converts noise digital volume letter for noise simulation information volume
Breath is sent to the CPU22 that amplifies.When noise digital information volume is greater than preset maximum threshold values in the CPU22 that amplifies, amplify CPU22
Regulation unit 23 is sent instructions to, regulation unit 23 regulates and controls speaker 24, increases volume.
Finally, it should be noted that above-described embodiments are merely to illustrate the technical scheme, rather than to it
Limitation；Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or to part of or all technical features into
Row equivalent replacement；And these modifications or substitutions, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (7)
1. a kind of teaching public address system, including mobile terminal (1), the terminal that amplifies (2) and amplify terminal (2) at mobile terminal (1)
It is connected, it is characterised in that: further include audio signal processor I(3), audio signal processor II(4), it is arranged in the terminal that amplifies
(2) a decibel tester (5) are amplified below；The mobile terminal (1) is connected by microphone (11), with microphone (11) by Mike
The audio signal that wind (11) receives is converted into the Sound Processor Unit (12) of digital signal, the CPU being connected with Sound Processor Unit (12)
(13) sender unit (14) composition being connected with CPU(13)；The audio signal processor I(3) it is connected with CPU(13)；Institute
Decibel tester (5) that amplifies is stated to be connected with the terminal that amplifies (2).
2. a kind of teaching public address system as described in claim 1, it is characterised in that: the terminal that amplifies (2) is connect by signal
Receive that device (21), amplify CPU(22), receive to amplify CPU(22) the regulation unit (23), sound of instruction regulation speaker (24) volume
Case (24) composition；The signal receiver (21) for receiving signal is connected with sender unit (14), signal receiver (21) with amplify
CPU(22) it is connected, amplify CPU(22) it is connected with regulation unit (23), speaker (24)；It is described to amplify a decibel tester (5) and expand
Sound CPU(22) it is connected.
3. a kind of teaching public address system as claimed in claim 2, it is characterised in that: signal receiver (21) and signal are sent
Device (14) electrical connection is transmitted by signal.
4. a kind of teaching public address system as claimed in claim 2, it is characterised in that: signal receiver (21) is that receiving is infrared
The infrared receiver of line, sender unit (14) are the microphone for emitting infrared ray.
5. a kind of teaching public address system as claimed in claim 2, it is characterised in that: sender unit (14) is by encoder
(141), transmitter (142) forms, and encoder (141) is electrically connected with transmitter (142)；Signal receiver (21) is by decoder
(212), receiver (211) forms, and receiver (211) is electrically connected with decoder (212).
6. a kind of teaching public address system a method as claimed in any one of claims 1 to 5, it is characterised in that: the system also includes settings
Environment decibel tester (6) among classroom, the environment decibel tester (6) are connected with the terminal that amplifies (2).
7. a kind of teaching public address system as claimed in claim 6, it is characterised in that: the environment decibel tester (6) with
Amplify CPU(22) it is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711348578.6A CN109936811A (en) | 2017-12-15 | 2017-12-15 | Public address system is used in a kind of teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711348578.6A CN109936811A (en) | 2017-12-15 | 2017-12-15 | Public address system is used in a kind of teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109936811A true CN109936811A (en) | 2019-06-25 |
Family
ID=66979701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711348578.6A Withdrawn CN109936811A (en) | 2017-12-15 | 2017-12-15 | Public address system is used in a kind of teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109936811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110650423A (en) * | 2019-10-18 | 2020-01-03 | 邹熠晨 | Intelligent classroom sound control system |
-
2017
- 2017-12-15 CN CN201711348578.6A patent/CN109936811A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110650423A (en) * | 2019-10-18 | 2020-01-03 | 邹熠晨 | Intelligent classroom sound control system |
| CN110650423B (en) * | 2019-10-18 | 2020-08-04 | 邹熠晨 | Intelligent classroom sound control system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190625 |