CN202512782U - Visual sound demonstration device - Google Patents
Visual sound demonstration device Download PDFInfo
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- CN202512782U CN202512782U CN 201220096387 CN201220096387U CN202512782U CN 202512782 U CN202512782 U CN 202512782U CN 201220096387 CN201220096387 CN 201220096387 CN 201220096387 U CN201220096387 U CN 201220096387U CN 202512782 U CN202512782 U CN 202512782U
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Abstract
The utility model discloses a visual sound demonstration device which is an instruction demonstration device regarding to several sound characteristics and made by utilizing a sound visual technology. The visual sound demonstration device comprises a display circuit, a recording circuit, a playback circuit and a main control circuit; wherein the sound frequency and intensity played by the playback circuit correspond to the flashing frequency point and brightness of an LED dot matrix in the display circuit, and an LCD display circuit displays the sound actual frequency, tone and sound intensity, so that the sound is visual. The visual sound demonstration device overcomes the defects that the conventional acoustics teaching model is dull and the function is single, enables the sound output of various simple single-tones to be realized, and uses the flashing and brightness of the LED dot matrix to indicate the underclocking frequency and intensity of the single-tones respectively, thereby achieving the effect of feeling sound visually.
Description
Technical field
The utility model relates to a kind of sound demonstration device, relates in particular to a kind of visual sound demonstration device.
Background technology
Because the knowledge in some physical chemistry fields is more abstract, teacher only leans on oral tell about or the PPT demonstration is difficult to let the student understand fully thoroughly; Model through relevant comes aided education, and lets student's hands-on practice, can not only uninteresting knowledge be become more lively like this, the student can be accepted easily and understands, and can also motivate students' interest in learning, and the while can also alleviate teacher's teaching load.Particularly a kind of simple to operate, safety and the teaching mode that gathers multi-function in integral whole can not only reach better teaching and more can reduce instruction cost and teaching difficulty greatly.
Now in the life or occurred a lot of teaching demonstration model or device on the market; Demonstrate phenomenons such as various physical chemistry; Such as demonstrating electromagnetic induction phenomenon, parabolic curve phenomenon; And demonstration chemical substance dissolution phenomena or the like, these play a good role for student's learning physics chemical knowledge.But nowadays go back instructional device intelligence, that gather multi-function in integral whole that the modern advanced electronics technology knowledge of neither one utilization is processed about the sound certain characteristics.Sound is a knowledge point must learning in the physics teaching in secondary school; It is invisible, colourless, and it is more also complicated to influence its factor, at present the general entities such as ruler, tuning fork, violin that adopt in the teaching; These sound educational aids can only be exported almost single sound; And unsusceptibility is to the variation of the sound frequency of different tones and its intensity of sound of malleable not, makes troubles and do not reach better teaching to experiment, then can bring bigger cost if the multiple object sounding of employing contrasts the sound of different tones; And these instruments are difficult to the real interaction with the student that realizes, and are more stiff.
The utility model content
The purpose of the utility model is exactly in order to overcome the defective of conventional acoustic teaching mode in the prior art, and provide a kind of simple in structure, easy to operate, the device of the certain characteristics that is used for demonstrating sound.
The purpose of the utility model can realize through following technical scheme: a kind of visual sound demonstration device; It is characterized in that; Comprise: display circuit; Comprise LED dot matrix and LCD LCDs, wherein said LED dot matrix has a plurality of flicker frequencies, and each flicker frequency is positioned at different frequency channels; Playback circuit is connected with said governor circuit, and said playback circuit comprises a control playback unit, is used to control 1 to 7 unifrequency sound, wherein the corresponding said flicker frequency of each unifrequency sound; Governor circuit comprises: the STC single-chip microcomputer, and said STC single-chip microcomputer is provided with the show state of the said display circuit of control and the duty of said playback circuit and recording circuit through programming in advance; Wherein, said playback circuit output sound resolves into said 1 to 7 unifrequency sound, and said control playback unit corresponds to a said flicker frequency of said LED dot matrix with said each unifrequency sound, and in said display circuit, shows.
Wherein, comprise a plurality of buttons, said a plurality of buttons are connected with said governor circuit, and controlled by said governor circuit.
Wherein, said display circuit more comprises driver element, and said driver element adopts the midget relay control system.
Wherein, said playback circuit more comprises mini-loud hailer and sound power amplification and regulating circuit.
Wherein, thereby said STC single-chip microcomputer comes the break-make of pilot relay to control lighting of said LED dot matrix and extinguish through its I/O mouth output high-low level, and shows through the said LCD liquid crystal display of preset programmed control.
Wherein, said recording circuit comprises a recording chip, and said recording circuit is used to include the external sound source, and receives said master control circuit controls.
Wherein, said STC single-chip microcomputer makes said playback circuit play said unifrequency sound or the said recording chip of programmed control through presetting through its I/O mouth output high-low level.
Wherein, Described control panel is provided with the button of work control model; Comprise that putting the bright synchronous degree of said unifrequency sound button, record button, playback button, reset key, volume and LED dot matrix increases button, volume and LED brightness and fall synchronously low button, said button all with the control linkage of said governor circuit.
Description of drawings
Fig. 1 is the utility model apparatus structure synoptic diagram;
Fig. 2 is the utility model device physical circuit connection layout;
Fig. 3 is the utility model device core control circuit figure.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment:
Like Fig. 1, shown in 2, a kind of visual sound demonstration device is provided in the present embodiment, said sound demonstration device comprises governor circuit, display circuit, recording circuit, playback circuit, power supply and button; Said display circuit; Comprise LED dot matrix and LCD LCDs; Playback circuit; Be connected governor circuit with said display circuit, comprise: the STC single-chip microcomputer, said STC single-chip microcomputer is provided with the show state of the said display circuit of control and the duty of said playback circuit and said recording circuit through programming in advance; Wherein, said playback circuit is exported and is regulated said 1 to 7 unifrequency sound, and said control playback unit corresponds to a said flicker frequency of said LED dot matrix with said each unifrequency sound, and in said display circuit, shows.
As shown in Figure 3, in the present embodiment, said governor circuit comprises the STC single-chip microcomputer, and the STC single-chip microcomputer is the core of total system, and this single-chip microcomputer is provided with the duty of display effect, recording circuit and the playback circuit of control display circuit through programming in advance.In the present embodiment, said STC single-chip microcomputer preferably adopts STC-12C5A series.Said governor circuit circuit diagram is as shown in Figure 3.
In the present embodiment; Said display part is LED dot matrix and LCD LCDs, and the both is a low energy-consumption electronic device, so the total system power consumption is very low; The lighting and extinguish that it is connected with power supply or breaks off by midget relay control of LED dot matrix is so guaranteed to flow through in the single-chip microcomputer less current.
In the present embodiment; Said STC single-chip microcomputer is the The whole control core; Through programming STC single-chip processor i/o interface is set, the high-low level of exporting different frequency at the corresponding I/O interface of different operating state sends the sound of instruction or closing relay or output corresponding frequencies.Thereby said I/O interface also can make the flicker of LED dot matrix with the break-make of frequency output high-low level pilot relay after the corresponding frequency reducing, and then user's naked eyes are experienced the variation of alternative sounds frequency.When said recording circuit was included sound source, said STC single-chip microcomputer sent corresponding instruction to the recording chip of said recording circuit and makes that it begins to record, resets, playback.In the present embodiment, said recording chip preferably adopts the is4004 recording chip.
In the present embodiment, said playback circuit is connected with said governor circuit, can export and regulate by 1 to 7 the unifrequency sound of said STC single-chip microcomputer through software simulation output, the wherein corresponding said led array flicker frequency of each unifrequency sound; And the display part of said display circuit is divided into LED dot matrix and LCD LCDs, and wherein said LED dot matrix has a plurality of flicker frequencies, and each flicker frequency is positioned at different frequency channels.
As shown in Figure 2, be connected a filtering circuit between playback circuit described in the present embodiment and the said governor circuit, its function be put said recording circuit record during sound collected sound signal finally obtain the fundamental frequency of the sound of raising one's voice to its utmost.
In the present embodiment; Said control panel is provided with the mode of operation button; Comprise that playing the bright synchronous degree increase button of said unifrequency sound button, record button, playback button, reset key, volume and LED dot matrix, volume and LED brightness falls synchronously low button; Said button all with the control linkage of said governor circuit; Play the unifrequency sound that said unifrequency sound button is a controls playing said 1 to 7, said record button and said playback button are that control recording part is carried out audio frequency typing and audio frequency output.When said recording circuit is included sound source; Filtering circuit in the said recording circuit decomposites this sound source of including the fundamental frequency of this sound source; Said playback circuit is put by 1 to 7 the unifrequency sound of the STC single-chip microcomputer in the said governor circuit through preset program output and corresponding with the flicker frequency of said LED dot matrix, actual frequency, the actual strength of demonstration flicker frequency and institute's output sound on said LCD liquid crystal display; Said reset key is used for controlling record length, but length can not be above 8 minutes; Said volume and LED brightness increase the loud degree that button, volume and LED brightness reduce the sound of brightness that button is the said LED dot matrix of synchro control and the output of said playback circuit synchronously synchronously; The loudness of the sound of said playback circuit output is represented in the brightness of said in fact LED dot matrix; When the sound source megaphonia degree of sound typing was big, the loudness of the sound of the brightness of said LED dot matrix and said playback circuit output can strengthen accordingly synchronously when playback.
In the present embodiment, said power supply be standard+the 5V power supply.
In the present embodiment, the LED dot matrix in the said display part is to constitute with 16 LED light emitting diodes that heart pattern is arranged.
In the present embodiment, said playback circuit comprises that also an audio power amplifies chip, a regulating circuit and a mini-loud hailer and forms the audio output circuit composition.In the present embodiment, said audio power amplifies chip and preferably adopts the LM386 chip.
Hence one can see that, and the utility model is simple in structure, easy to use, and cost is lower, and function is more, through this sound demonstration device can specialize abstract acoustics physical knowledge, imagery, be easy to the user and understand.
Claims (8)
1. a visual sound demonstration device is characterized in that, comprising:
Display circuit comprises LED dot matrix and LCD LCDs, and wherein said LED dot matrix has a plurality of flicker frequencies, and each flicker frequency is positioned at different frequency channels;
Playback circuit is connected with said governor circuit, and said playback circuit comprises a control playback unit, is used to control 1 to 7 unifrequency sound, wherein the corresponding said led array flicker frequency of each unifrequency sound;
Governor circuit comprises: the STC single-chip microcomputer, and said STC single-chip microcomputer is provided with the show state of the said display circuit of control and the duty of said playback circuit and recording circuit through programming in advance; Wherein, STC single-chip microcomputer in the said governor circuit is exported said 1 to 7 unifrequency voice signal pulse and is converted into corresponding voice output through said playback circuit through preset software; Said control playback unit corresponds to a said flicker frequency of said LED dot matrix with said each unifrequency sound, and in said LCD display circuit, shows corresponding audio parameter.
2. visual sound demonstration device according to claim 1 wherein, comprises a plurality of buttons, and said a plurality of buttons are connected with said governor circuit, and controlled by said governor circuit.
3. visual sound demonstration device according to claim 1, wherein, said display circuit more comprises driver element, said driver element adopts the midget relay control system.
4. visual sound demonstration device according to claim 1, wherein, said playback circuit more comprises mini-loud hailer and sound power amplification and regulating circuit.
5. visual sound demonstration device according to claim 1; Wherein, Thereby said STC single-chip microcomputer comes the break-make of pilot relay to control lighting of said LED dot matrix and extinguish through its I/O mouth output high-low level, and shows through the said LCD liquid crystal display of preset programmed control.
6. visual sound demonstration device according to claim 1, wherein, said recording circuit comprises a recording chip, said recording circuit is used to include sound source, and receives said master control circuit controls.
7. visual sound demonstration device according to claim 6, wherein, said STC single-chip microcomputer makes said playback circuit play said unifrequency sound or the said recording chip of programmed control through presetting through its I/O mouth output high-low level.
8. visual sound demonstration device according to claim 1; Wherein, Described control panel is provided with the button of work control model; Comprise that putting said unifrequency sound button, record button, playback button, reset key, volume and the brightness of LED dot matrix increases button, volume and the brightness of LED dot matrix synchronously and reduce button synchronously, said button all with the control linkage of said governor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220096387 CN202512782U (en) | 2012-03-07 | 2012-03-07 | Visual sound demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220096387 CN202512782U (en) | 2012-03-07 | 2012-03-07 | Visual sound demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202512782U true CN202512782U (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220096387 Expired - Fee Related CN202512782U (en) | 2012-03-07 | 2012-03-07 | Visual sound demonstration device |
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| CN (1) | CN202512782U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096361A (en) * | 2014-07-08 | 2014-10-15 | 苏州乐聚一堂电子科技有限公司 | Intelligent wireless sensing control system |
| CN112270910A (en) * | 2020-11-26 | 2021-01-26 | 深圳市艾比森光电股份有限公司 | Display screen control method and device and display screen |
| CN113838489A (en) * | 2021-08-23 | 2021-12-24 | 浙江工业大学之江学院 | Sound playing device and method, electronic equipment and computer storage medium |
-
2012
- 2012-03-07 CN CN 201220096387 patent/CN202512782U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096361A (en) * | 2014-07-08 | 2014-10-15 | 苏州乐聚一堂电子科技有限公司 | Intelligent wireless sensing control system |
| CN112270910A (en) * | 2020-11-26 | 2021-01-26 | 深圳市艾比森光电股份有限公司 | Display screen control method and device and display screen |
| CN113838489A (en) * | 2021-08-23 | 2021-12-24 | 浙江工业大学之江学院 | Sound playing device and method, electronic equipment and computer storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20130307 |