CN109360548A - A kind of ship's space active noise reduction system - Google Patents
A kind of ship's space active noise reduction system Download PDFInfo
- Publication number
- CN109360548A CN109360548A CN201811494821.XA CN201811494821A CN109360548A CN 109360548 A CN109360548 A CN 109360548A CN 201811494821 A CN201811494821 A CN 201811494821A CN 109360548 A CN109360548 A CN 109360548A
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- China
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- loudspeaker
- sound pick
- noise reduction
- ship
- controller
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000013500 data storage Methods 0.000 claims abstract description 4
- 230000002040 relaxant effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 206010016256 fatigue Diseases 0.000 description 3
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 208000019116 sleep disease Diseases 0.000 description 1
- 208000022925 sleep disturbance Diseases 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention discloses a kind of ship's space active noise reduction systems, its main feature is that sound pick-up and loudspeaker that the system is connected by controller form, loudspeaker D/A converting circuit, sound pick-up analog-to-digital conversion module and the data storage that the controller is separately connected by digital signal processing circuit are formed；The loudspeaker D/A converting circuit is connect by power amplifier with loudspeaker；The sound pick-up analog-to-digital conversion module is connect with sound pick-up.The present invention has noise reduction without dead angle compared with prior art, and the comfort that crewman stays is improved, and structure is simple, easy to use, realizes the ideal noise reduction effect of cabin relaxing area, further improves the working efficiency of crewman.
Description
Technical field
The present invention relates to ship's space noise abatement technical fields, especially a kind of to be used for ship's space active noise reduction system
System.
Background technique
Currently, the cabin of many ships is close to cabin, the rest of operator on duty will receive the very big influence of engine noise,
And close to the main cabin or cabin on duty of window, the rest of personnel is also easy to be influenced by wave noise, to there are sleep disturbance
People cause puzzlement.Ship is the integrated system of typical people-machine-environment composition, a large amount of marine accidents analysis shows,
Human factor occupies first place, wherein 40% is as caused by the factors such as off one's guard, over fatigue and lassitude.So mentioning
The living conditions of high crewman's accommodation can be substantially reduced the adverse reaction of various physiology and psychology, help to improve crewman
Excited degree, lessen fatigue sense, improves health and improve working efficiency.
The noise control of the prior art includes: sound absorption processing, sound insulation processing, using silencer or damping vibration attenuation etc., these
Processing means are mainly to achieve the purpose that reduce noise by reducing the energy of noise, belong to the control mode of passive noise reduction.
Since the position range noise source in these cabins is close, promising result is unable to reach using passive noise-reduction method.
Summary of the invention
The purpose of the present invention is designing a kind of ship's space active noise reduction system in view of the deficiencies of the prior art, use
The active noise reduction techniques of envelope structure reach the noise of sound pick-up acquisition by rp-wave that controller obtains to offset noise
To the purpose for reducing cabin noise, optimize and improve the acoustic environment in cabin significantly, structure is simple, and easy to use, noise reduction is without dead
Angle realizes the ideal noise reduction effect of cabin relaxing area, and the comfort that crewman stays is improved, and further improves ship
The working efficiency of member.
The object of the present invention is achieved like this: a kind of ship's space active noise reduction system, its main feature is that the system by
The sound pick-up and loudspeaker composition of controller connection, the loudspeaker number that the controller is separately connected by digital signal processing circuit
Analog conversion circuit, sound pick-up analog-to-digital conversion module and data storage composition；The loudspeaker D/A converting circuit is by power amplifier electricity
Road is connect with loudspeaker；The sound pick-up analog-to-digital conversion module is connect with sound pick-up.
The controller, sound pick-up and loudspeaker are arranged in the shell of concave shape envelope structure.
The controller is equipped with ENET interface and power interface.
The present invention has noise reduction without dead angle compared with prior art, and the comfort that crewman stays is improved, and structure is simple, makes
With conveniently, the ideal noise reduction effect of cabin relaxing area is realized, the working efficiency of crewman is further improved.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is implementation example figure；
Fig. 3 is Fig. 2 top view；
Fig. 4 is concrete application schematic diagram of the present invention.
Specific embodiment
Refering to attached drawing 1, the sound pick-up 2 and loudspeaker 3 that the present invention is connected by controller 1 are formed, and the controller 1 is by number
Loudspeaker D/A converting circuit 6 that signal processing circuit 5 is separately connected, sound pick-up analog-to-digital conversion module 8 and 9 groups of data storage
At；The loudspeaker D/A converting circuit 6 is connect by power amplifier 7 with loudspeaker 3；The sound pick-up analog-to-digital conversion module 8 with
Sound pick-up 2 connects；The controller 1 is equipped with the ENET interface 10 of power interface 11 and debugging；The Digital Signal Processing electricity
Road 5 is high speed WeChat ID processor, for handling noise reduction algorithm, data-handling capacity, high reliability with high speed and lower
Cost and power consumption.
Below by taking the crew quarter by certain type ship cabin as an example, the present invention is further elaborated:
Embodiment 1
Refering to 2 ~ Fig. 3 of attached drawing, the present invention is made of the controller 1, sound pick-up 2 and loudspeaker 3 being arranged in shell 4；The shell
Body 4 uses concave shape envelop-type structure, and sound pick-up 2 and loudspeaker 3 is respectively set in the envelop-type structure of two short sides, long side
Two-loudspeaker 3 is respectively set in envelop-type structure；The controller 1 is arranged in the envelop-type structure of 4 one short side of shell, and point
It is not electrically connected with two sound pick-ups 2 and four loudspeakers 3；The shell 4 can be decorated by textile fabric, with crew quarter bed 14
Decoration combines together.
Refering to attached drawing 4, the paving width of crew quarter bed 14 is 0.9m, in order to improve the acoustic environment of crew quarter relaxing area, incite somebody to action this
Invention is placed on the head of a bed of crew quarter bed 14, and pillow 13 is placed in the concave shape gap of shell 4, and the shell 4 uses character cut in bas-relief
The envelop-type structure of shape, long side are that 0.9m is equal with the width of bed, and the length of short side is the width phase of 0.3m and pillow 13
Deng；The controller 1 is drawn by power supply adaptor by power interface 11 and belt switch, and power supply adaptor provides for whole system
DC24V power supply, power switch are located among electric wire.It need to only be turned on the power switch when crewman's rest after installation, sound pick-up 2 will be collected
The ambient noise of noise source 12 inputs digital signal processing circuit 5, Digital Signal Processing electricity after sound pick-up analog-to-digital conversion module 8
Road 5 converts ambient noise to the processing that noise reduction algorithm is carried out after Serial No., and by the offseting signal after noise reduction process through raising
The audio ADC of sound device D/A converting circuit 6 converts, and the analog signal that the analog signal after conversion is amplified through power amplifier 7 is sent
It is executed to loudspeaker 3, the implementation procedure of loudspeaker 3 is by generating the noise signal antiphase being collected into sound pick-up 2, same to width
Degree, and be enough to offset the sound wave of relaxing area noise, to achieve the effect that relaxing area noise reduction, so that a drop occurs in the head of a bed
It makes an uproar region, pillow 13 and neighboring area can be covered just, so that crewman obtains the acoustic environment for being easier to fall asleep, to make many close
The ship's space that cabin is seriously affected by machine noise, and the main cabin or cabin on duty of the close window by wave influence of noise
Room, the effect that human ear hears that outside noise reduces is fairly obvious, effectively improves the acoustic environment in cabin, near user of service head
Acoustic environment optimized and promoted.
Above only the present invention is further illustrated, and not to limit this patent, all is equivalence enforcement of the present invention,
It is intended to be limited solely by within the scope of the claims of this patent.
Claims (3)
1. a kind of ship's space active noise reduction system, it is characterised in that the sound pick-up and loudspeaker that the system is connected by controller
Composition, loudspeaker D/A converting circuit that the controller is separately connected by digital signal processing circuit, sound pick-up analog-to-digital conversion
Module and data storage composition；The loudspeaker D/A converting circuit is connect by power amplifier with loudspeaker；The sound pick-up
Analog-to-digital conversion module is connect with sound pick-up.
2. ship's space active noise reduction system according to claim 1, it is characterised in that the controller, sound pick-up and raise
Sound device is arranged in the shell of concave shape envelope structure.
3. according to claim 1 or ship's space active noise reduction system described in claim 2, it is characterised in that the controller
Equipped with ENET interface and power interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494821.XA CN109360548A (en) | 2018-12-07 | 2018-12-07 | A kind of ship's space active noise reduction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494821.XA CN109360548A (en) | 2018-12-07 | 2018-12-07 | A kind of ship's space active noise reduction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109360548A true CN109360548A (en) | 2019-02-19 |
Family
ID=65331723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811494821.XA Pending CN109360548A (en) | 2018-12-07 | 2018-12-07 | A kind of ship's space active noise reduction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109360548A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112530397A (en) * | 2020-12-26 | 2021-03-19 | 深圳前海振百易科技有限公司 | Device for eliminating environmental noise by building implantation |
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| CN207925130U (en) * | 2017-06-30 | 2018-09-28 | 邢优胜 | Active noise control system in a kind of submarine cabin |
| CN209433857U (en) * | 2018-12-07 | 2019-09-24 | 中船第九设计研究院工程有限公司 | A kind of ship's space active noise reduction system |
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- 2018-12-07 CN CN201811494821.XA patent/CN109360548A/en active Pending
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| CN105489213A (en) * | 2014-10-02 | 2016-04-13 | 爱信技术中心美国股份有限公司 | Noise-cancelation apparatus for a vehicle headrest |
| CN107924674A (en) * | 2015-08-20 | 2018-04-17 | 美梦有限公司 | It is provided with the pillow that snoring noise eliminates |
| CN207286204U (en) * | 2016-07-26 | 2018-05-01 | 京东方科技集团股份有限公司 | A kind of device for preventing snoring |
| CN106175320A (en) * | 2016-08-19 | 2016-12-07 | 生迪光电科技股份有限公司 | Eliminate medicated pillow and the pillow combination of noise |
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| CN106792316A (en) * | 2017-01-10 | 2017-05-31 | 南京航空航天大学 | A kind of industrial active noise reduction earmuff |
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| CN112530397A (en) * | 2020-12-26 | 2021-03-19 | 深圳前海振百易科技有限公司 | Device for eliminating environmental noise by building implantation |
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