CN204463812U - A kind of noise circumstance regulator - Google Patents
A kind of noise circumstance regulator Download PDFInfo
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- CN204463812U CN204463812U CN201520173395.5U CN201520173395U CN204463812U CN 204463812 U CN204463812 U CN 204463812U CN 201520173395 U CN201520173395 U CN 201520173395U CN 204463812 U CN204463812 U CN 204463812U
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Abstract
The utility model discloses a kind of noise circumstance regulator, comprise: power module (1), microphone (2), signal processing unit (3) and muffling unit (4), described power module (1), microphone (2), signal processing unit (3) are connected in turn with muffling unit (4).The utility model is by utilizing the sonic data of microphone pick outside noise, and produce the signal identical with this outside noise intensity, frequency is identical, direction of vibration is contrary, phase place is contrary by signal processing unit, transferred out by muffling unit again, thus outside noise effectively can be eliminated, improve the living environment quality of people, and this system architecture is simple, good stability, cost is low, and volume is little, be easy to carry, be adapted at large-scale promotion application in daily life.
Description
Technical field
The utility model relates to a kind of noise circumstance regulator, belongs to noise cancellation technique field.
Background technology
Noise is a kind of pollution source affecting human environment and health, and noise is not only highly noisy sound intolerable to the ear, affects the sound of people's normal life and work under also comprising varying environment.
Current main sound suppressor, as steam silencer and exhaust silencer, all design for big-and-middle-sized industrial products or its certain parts, in order to reduce the noise of big-and-middle-sized industrial products or the generation of its certain parts, not only cost is high, and cannot be applied to daily life.But in daily life, also usually occur by the situation of noise jamming, such as, noisy noise (noise that the music without restraint play as not clear personage or air-conditioning, alarm clock etc. send) in waiting room, room for individual study, library, office and medical space etc., these noises have had a strong impact on mood and the state of people, disturb the working and learning of people.Thus a kind of noise circumstance regulator that can easily be applied to people's life of current urgent need.
Utility model content
The purpose of this utility model is, provide a kind of noise circumstance regulator, it can be applied in daily life, not only effectively can eliminate the noise in people's daily life, improve the living environment quality of people, and system stability is good, with low cost.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of noise circumstance regulator, comprise: power module, microphone, signal processing unit and muffling unit, described power module, microphone, signal processing unit are connected in turn with muffling unit.
Preferably, described power module is electrochmical power source or solar panel, thus can effective economize energy, reduces system cost.
Preferably, described signal processing unit comprises: A/D converter, low-pass filter, signal amplifier, phase analyzer, preamble synchronization device, smoothing filter and D/A converter, described A/D converter, low-pass filter, signal amplifier, phase analyzer, preamble synchronization device, smoothing filter are connected in turn with D/A converter, A/D converter is connected with microphone, D/A converter is connected with muffling unit, thus signal accurately can be produced, offset with noise signal, stress release treatment.
Preferred, described muffling unit comprises: T power-like amplifier and loudspeaker, and described T power-like amplifier is connected with D/A converter and loudspeaker respectively, thus the signal of generation effectively can be transferred out, and carries out noise elimination.
In aforesaid noise circumstance regulator, also comprise: LED, described LED is connected with power module, thus effectively can show the on off state of this noise circumstance regulator.
The utility model also comprises: switch, and described switch is connected with power module, thus can the switch of effective control noises environmental modulation device power supply, economize energy.
Preferably, described microphone adopts 5PC CSR-BC5-57F68 audio transmission module, A/D converter adopts TLC549C analog to digital converter, low-pass filter adopts CCT-LPF25R5 low-pass filter, signal amplifier adopts μ A741 operational amplifier, phase analyzer adopts SM852B phase-sequence meter, preamble synchronization device adopts fpga chip, smoothing filter adopts UB0001PF-24DS-2 electromagnetic interface filter, D/A converter adopts 8 D/A converter-DAC0832, T power-like amplifier adopts TA2022 chip, thus make Signal Matching program best, system stability is best, cost is lower simultaneously.
Compared with prior art, the utility model is by utilizing the sonic data of microphone pick outside noise, and produce the signal identical with this outside noise intensity, frequency is identical, direction of vibration is contrary, phase place is contrary by signal processing unit, transferred out by muffling unit again, thus outside noise effectively can be eliminated, improve the living environment quality of people, and this system architecture is simple, good stability, cost is low, volume is little, is easy to carry, and is adapted at large-scale promotion application in daily life.In addition, microphone in the utility model adopts 5PC CSR-BC5-57F68 audio transmission module, A/D converter adopts TLC549C analog to digital converter, low-pass filter adopts CCT-LPF25R5 low-pass filter, signal amplifier adopts μ A741 operational amplifier, phase analyzer adopts SM852B phase-sequence meter, preamble synchronization device adopts fpga chip, smoothing filter adopts UB0001PF-24DS-2 electromagnetic interface filter, D/A converter adopts 8 D/A converter-DAC0832, T power-like amplifier adopts TA2022 chip, thus make Signal Matching program best, system stability is best, cost is lower simultaneously.
Accompanying drawing explanation
Fig. 1 is the anatomical connectivity schematic diagram of a kind of embodiment of the present utility model.
Reference numeral: 1-power module, 2-microphone, 3-signal processing unit, 4-muffling unit, 5-A/D converter, 6-low-pass filter, 7-signal amplifier, 8-phase analyzer, 9-preamble synchronization device, 10-smoothing filter, 11-D/A converter, 12-T power-like amplifier, 13-loudspeaker, 14-LED lamp, 15-switch.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Embodiment
Embodiment 1 of the present utility model: a kind of noise circumstance regulator, as shown in Figure 1, comprise: power module 1, microphone 2, signal processing unit 3 and muffling unit 4, described power module 1, microphone 2, signal processing unit 3 are connected in turn with muffling unit 4.Described power module 1 is electrochmical power source or solar panel.Described signal processing unit 3 comprises: A/D converter 5, low-pass filter 6, signal amplifier 7, phase analyzer 8, preamble synchronization device 9, smoothing filter 10 and D/A converter 11, described A/D converter 5, low-pass filter 6, signal amplifier 7, phase analyzer 8, preamble synchronization device 9, smoothing filter 10 are connected in turn with D/A converter 11, A/D converter 5 is connected with microphone 2, and D/A converter 11 is connected with muffling unit 4.Described muffling unit 4 comprises: T power-like amplifier 12 and loudspeaker 13, and described T power-like amplifier 12 is connected with D/A converter 11 and loudspeaker 13 respectively.Also comprise: LED 14, described LED 14 is connected with power module 1.Also comprise: switch 15, described switch 15 is connected with power module 1.Described microphone 2 adopts 5PC CSR-BC5-57F68 audio transmission module, A/D converter 5 adopts TLC549C analog to digital converter, low-pass filter 6 adopts CCT-LPF25R5 low-pass filter, signal amplifier 7 adopts μ A741 operational amplifier, phase analyzer 8 adopts SM852B phase-sequence meter, preamble synchronization device 9 adopts fpga chip, smoothing filter 10 adopts UB0001PF-24DS-2 electromagnetic interface filter, D/A converter 11 adopts 8 D/A converter-DAC0832, and T power-like amplifier 12 adopts TA2022 chip.
Embodiment 2: a kind of noise circumstance regulator, as shown in Figure 1, comprising: power module 1, microphone 2, signal processing unit 3 and muffling unit 4, described power module 1, microphone 2, signal processing unit 3 are connected in turn with muffling unit 4.Described signal processing unit 3 comprises: A/D converter 5, low-pass filter 6, signal amplifier 7, phase analyzer 8, preamble synchronization device 9, smoothing filter 10 and D/A converter 11, described A/D converter 5, low-pass filter 6, signal amplifier 7, phase analyzer 8, preamble synchronization device 9, smoothing filter 10 are connected in turn with D/A converter 11, A/D converter 5 is connected with microphone 2, and D/A converter 11 is connected with muffling unit 4.Described muffling unit 4 comprises: T power-like amplifier 12 and loudspeaker 13, and described T power-like amplifier 12 is connected with D/A converter 11 and loudspeaker 13 respectively.
Embodiment 3: a kind of noise circumstance regulator, as shown in Figure 1, comprising: power module 1, microphone 2, signal processing unit 3 and muffling unit 4, described power module 1, microphone 2, signal processing unit 3 are connected in turn with muffling unit 4.Described power module 1 is electrochmical power source or solar panel.
Embodiment 4: a kind of noise circumstance regulator, as shown in Figure 1, comprising: power module 1, microphone 2, signal processing unit 3 and muffling unit 4, described power module 1, microphone 2, signal processing unit 3 are connected in turn with muffling unit 4.
The principle of work of a kind of embodiment of the present utility model: open switch 15, power module 1 powers to microphone 2, LED 14 is bright, microphone 2 gathers the sonic data of outside noise, noise signal is converted into digital signal by the A/D converter 5 in signal processing unit 3, again by low-pass filter 6 filtering, after signal amplifier 7 amplifies, phase analyzer 8 and preamble synchronization device 9 is utilized to carry out data analysis, obtain identical with source noise intensity of acoustic wave, frequency is identical, direction of vibration is contrary, the train wave that phase place is contrary, this signal is again through the smoothing filtering of smoothing filter 10, convert simulating signal to by D/A converter 11 to be amplified by the T power-like amplifier 12 in muffling unit 4, sent by loudspeaker 13, with the noise cancellation in the external world, thus eliminate noise.
Claims (7)
1. a noise circumstance regulator, it is characterized in that, comprise: power module (1), microphone (2), signal processing unit (3) and muffling unit (4), described power module (1), microphone (2), signal processing unit (3) are connected in turn with muffling unit (4).
2. noise circumstance regulator according to claim 1, is characterized in that, described power module (1) is electrochmical power source or solar panel.
3. noise circumstance regulator according to claim 1, it is characterized in that, described signal processing unit (3) comprising: A/D converter (5), low-pass filter (6), signal amplifier (7), phase analyzer (8), preamble synchronization device (9), smoothing filter (10) and D/A converter (11), described A/D converter (5), low-pass filter (6), signal amplifier (7), phase analyzer (8), preamble synchronization device (9), smoothing filter (10) is connected in turn with D/A converter (11), A/D converter (5) is connected with microphone (2), D/A converter (11) is connected with muffling unit (4).
4. noise circumstance regulator according to claim 3, it is characterized in that, described muffling unit (4) comprising: T power-like amplifier (12) and loudspeaker (13), and described T power-like amplifier (12) is connected with D/A converter (11) and loudspeaker (13) respectively.
5., according to the arbitrary described noise circumstance regulator of Claims 1 to 4, it is characterized in that, also comprise: LED (14), described LED (14) is connected with power module (1).
6. noise circumstance regulator according to claim 5, is characterized in that, also comprise: switch (15), and described switch (15) is connected with power module (1).
7. noise circumstance regulator according to claim 4, it is characterized in that, described microphone (2) adopts 5PCCSR-BC5-57F68 audio transmission module, A/D converter (5) adopts TLC549C analog to digital converter, low-pass filter (6) adopts CCT-LPF25R5 low-pass filter, signal amplifier (7) adopts μ A741 operational amplifier, phase analyzer (8) adopts SM852B phase-sequence meter, preamble synchronization device (9) adopts fpga chip, smoothing filter (10) adopts UB0001PF-24DS-2EMI wave filter, D/A converter (11) adopts 8 D/A converter-DAC0832, T power-like amplifier (12) adopts TA2022 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173395.5U CN204463812U (en) | 2015-03-26 | 2015-03-26 | A kind of noise circumstance regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173395.5U CN204463812U (en) | 2015-03-26 | 2015-03-26 | A kind of noise circumstance regulator |
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| Publication Number | Publication Date |
|---|---|
| CN204463812U true CN204463812U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520173395.5U Expired - Fee Related CN204463812U (en) | 2015-03-26 | 2015-03-26 | A kind of noise circumstance regulator |
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| CN (1) | CN204463812U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681975A (en) * | 2015-12-29 | 2016-06-15 | 生迪智慧科技有限公司 | LED lamp and system for eliminating ambient noise |
| CN109410908A (en) * | 2019-01-04 | 2019-03-01 | 中船第九设计研究院工程有限公司 | A kind of modular environment noise reduction system |
-
2015
- 2015-03-26 CN CN201520173395.5U patent/CN204463812U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681975A (en) * | 2015-12-29 | 2016-06-15 | 生迪智慧科技有限公司 | LED lamp and system for eliminating ambient noise |
| CN105681975B (en) * | 2015-12-29 | 2018-10-30 | 生迪智慧科技有限公司 | Eliminate the LED light and system of ambient noise |
| CN109410908A (en) * | 2019-01-04 | 2019-03-01 | 中船第九设计研究院工程有限公司 | A kind of modular environment noise reduction system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20180326 |