CN212782708U - Active noise reduction device of server - Google Patents
Active noise reduction device of server Download PDFInfo
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- CN212782708U CN212782708U CN202021025027.3U CN202021025027U CN212782708U CN 212782708 U CN212782708 U CN 212782708U CN 202021025027 U CN202021025027 U CN 202021025027U CN 212782708 U CN212782708 U CN 212782708U
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- 230000000694 effects Effects 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 abstract description 3
- 230000005236 sound signal Effects 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000614 phase inversion technique Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a device of making an uproar falls in initiative of server, include: the device comprises a noise capturing device, a sound processing unit, a CPU, an active noise reduction unit, a loudspeaker and a noise reduction effect analysis unit, wherein the noise capturing device is connected with the sound processing unit, the sound processing unit is connected with the CPU, the CPU is connected with the active noise reduction unit, and the active noise reduction unit is connected with the loudspeaker; the noise reduction effect analysis unit is respectively connected with the noise capture equipment and the CPU; the utility model discloses a signal of analysis noise produces the antiphase noise that corresponds, plays the effect of offsetting the noise, has reduced the noise that the server storage operation in-process produced to provide and fall the analysis unit of making an uproar, can be automatically according to the signal of making an uproar that falls that the condition of making an uproar adjustment of reality sent falls.
Description
Technical Field
The utility model belongs to the technical field of the server, concretely relates to device of making an uproar falls in initiative of server.
Background
With the improvement of the performance of the server, the operation of the CPU inevitably leads to the increase of the heat dissipation capacity, so that the rotation speed of the fan has to be increased, the sound is loud when the fan runs fast, the air vibration caused by the fan blades also generates a part of noise, and the hard disk sometimes makes a sound, so the noise of the server mainly includes the sound of the fan, the sound of the hard disk and the sound of the air vibration.
There are many methods for reducing noise of the server, and the small server generally adopts water cooling heat dissipation, large refitted fan and the like, but can only improve the fan noise, the effect is not particularly obvious, and a large amount of internal space of the server is occupied; for a large server, a single machine room is generally arranged or a set of mute cabinets dedicated to the server is configured, but in this case, good ventilation of the server needs to be ensured, and the cost is too high.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to prior art, the utility model provides a device of making an uproar falls in initiative of server to solve above-mentioned technical problem.
The utility model provides a device of making an uproar falls in initiative of server, include: the device comprises a noise capturing device, a sound processing unit, a CPU, an active noise reduction unit, a loudspeaker and a noise reduction effect analysis unit, wherein the noise capturing device is connected with the sound processing unit, the sound processing unit is connected with the CPU, the CPU is connected with the active noise reduction unit, and the active noise reduction unit is connected with the loudspeaker; the noise reduction effect analysis unit is respectively connected with the noise capture device and the CPU.
Furthermore, the device also comprises a control panel, and the sound processing unit, the active noise reduction unit and the noise reduction effect analysis unit are all integrated on the control panel.
Further, the noise capturing device is a plurality of microphones, and the plurality of microphones and the loudspeaker are respectively arranged around the fan and the hard disk of the server.
Further, the active noise reduction unit adopts an AS3435 active noise reduction chip.
Further, the sound processing unit adopts an AIC23 sound processing chip.
The utility model provides an active noise reduction device of a server, which plays a role in offsetting noise by analyzing the signal of the noise and generating corresponding reversed phase noise, reduces the noise generated in the storage operation process of the server and improves the user experience; a noise reduction analysis unit is provided, so that the emitted noise reduction signal can be automatically adjusted according to the actual noise reduction condition, and the noise reduction effect is improved; the CPU of the server is directly used as a control center, an additional controller is not needed, the utilization rate of the CPU is improved, and the cost of active noise reduction is reduced; meanwhile, components are integrated on the control panel, so that the internal space of the server is saved.
Furthermore, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure of an apparatus according to an embodiment of the present application;
wherein, 1, noise catching equipment; 2. a sound processing unit; 3. a CPU; 4. an active noise reduction unit; 5. a speaker; 6. a noise reduction effect analysis unit; 7. and a control panel.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
As shown in fig. 1, the present embodiment provides an active noise reduction apparatus for a server, including: the noise reduction device comprises a noise capture device 1, a sound processing unit 2, a CPU3, an active noise reduction unit 4, a loudspeaker 5, a noise reduction effect analysis unit 6 and a control panel 7, wherein the noise capture device 1 is connected with the sound processing unit 2, the sound processing unit 2 is connected with a CPU3, the CPU3 is connected with the active noise reduction unit 4, and the active noise reduction unit 4 is connected with the loudspeaker 5; the noise reduction effect analysis unit 6 is connected with the CPU 3; the sound processing unit 2, the active noise reduction unit 4 and the noise reduction effect analysis unit 6 are all integrated on the control board 7.
In a specific implementation of the embodiment, the noise capturing device 1 employs a plurality of microphones, and the plurality of microphones and the speakers are respectively disposed around a fan and a hard disk of the server; the active noise reduction unit 4 adopts an AS3435 active noise reduction chip; the sound processing unit 2 employs an AIC23 sound processing chip.
After the device is powered on, a microphone captures and acquires noise, and a sound signal is converted into an electric signal; the microphone sends the acquired noise signal to an AIC23 chip for sound preprocessing, and the electric signal is converted into a digital signal; after the CPU3 obtains the noise digital signal, the CPU3 analyzes the sound field of the noise, establishes a corresponding sound model, and the CPU3 produces the noise reduction sound signal by a noise signal phase inversion method under the condition of keeping the signal amplitude basically unchanged; after the noise reduction sound signal is transmitted to the AS3435 chip, the digital noise reduction sound signal is converted into an electric signal form and sent to a loudspeaker; the loudspeaker 5 plays noise reduction sound according to the electric signal, and counteracts the noise in opposite phase, so that the noise reduction function is realized. When the microphone captures noise every time, the CPU3 sends the electric signal to the noise reduction effect analysis unit 6, the noise reduction effect analysis unit 6 analyzes the electric signals twice before and after to obtain the error of noise reduction, and sends an adjustment signal to the CPU according to the noise reduction error, so that the CPU adjusts the noise reduction sound signal produced, and the noise reduction effect is improved according to the actual situation.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. An active noise reduction apparatus for a server, comprising: the device comprises a noise capturing device, a sound processing unit, a CPU, an active noise reduction unit, a loudspeaker and a noise reduction effect analysis unit, wherein the noise capturing device is connected with the sound processing unit, the sound processing unit is connected with the CPU, the CPU is connected with the active noise reduction unit, and the active noise reduction unit is connected with the loudspeaker; the noise reduction effect analysis unit is respectively connected with the noise capture device and the CPU.
2. The active noise reduction device of a server according to claim 1, further comprising a control board, wherein the sound processing unit, the active noise reduction unit and the noise reduction effect analysis unit are integrated on the control board.
3. The active noise reduction apparatus of a server according to claim 1, wherein the noise capturing device is a plurality of microphones, and the plurality of microphones and the plurality of speakers are respectively disposed around a fan and a hard disk of the server.
4. The active noise reduction device of a server according to claim 1, wherein the active noise reduction unit employs an AS3435 active noise reduction chip.
5. The active noise reduction device of a server according to claim 1, wherein the sound processing unit employs an AIC23 sound processing chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021025027.3U CN212782708U (en) | 2020-06-05 | 2020-06-05 | Active noise reduction device of server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021025027.3U CN212782708U (en) | 2020-06-05 | 2020-06-05 | Active noise reduction device of server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212782708U true CN212782708U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021025027.3U Active CN212782708U (en) | 2020-06-05 | 2020-06-05 | Active noise reduction device of server |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212782708U (en) |
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2020
- 2020-06-05 CN CN202021025027.3U patent/CN212782708U/en active Active
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