CN105898635A - Pickup device for outdoor long-distance use - Google Patents
Pickup device for outdoor long-distance use Download PDFInfo
- Publication number
- CN105898635A CN105898635A CN201610266609.2A CN201610266609A CN105898635A CN 105898635 A CN105898635 A CN 105898635A CN 201610266609 A CN201610266609 A CN 201610266609A CN 105898635 A CN105898635 A CN 105898635A
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- Prior art keywords
- sound
- pedestal
- outdoor
- distance
- equipment
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 52
- 230000030279 gene silencing Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
- H04R1/086—Protective screens, e.g. all weather or wind screens
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a pickup device for outdoor long-distance use, and aims to provide a pickup device capable of outdoor long-distance use for voice acquisition. The main points of the technical scheme lie in that the pickup device includes a base and at least two groups of reflective faces arranged on the base in a staggered manner; pickup tubes corresponding respectively to the reflective faces are disposed on the base; the base is provided with a housing accommodating the pickup tubes; one end face of the housing is provided with through holes and the inner side wall is provided with a silencing structure; end portions of free ends of the pickup tubes are provided with first highly directive microphones; the end portions, connected with the base, of the pickup tubes are provided with second highly directive microphones opposite to the reflective faces; and at least one omnidirectional microphone is arranged between each first highly directive microphone and the corresponding second highly directive microphone. The longitudinal array arrangement of the pickup tubes in the application allows the feedback noise signals to be uniformly processed, and also enables the first highly directive microphones, the second highly directive microphones and a voice gathering structure to be highly directive and to fully receive voice signals of a target voice source.
Description
Technical field
The present invention relates to a kind of sound pickup device, the sound pick up equipment used at a distance more particularly to a kind of outdoor.
Background technology
In fields such as security, security protection, interviews, all kinds of video monitorings or video acquisition system have been used widely.Rely on
All kinds of video monitorings or video acquisition system, can accurately shoot related personnel in long-distance video, but regard in utilization
Frequently monitoring system carries out being difficult to during wide-long shot carry out remote speech collection, if being gathered by remote speech, and video
Monitoring system i.e. may utilize language, dialog information analysis suspect, and video acquisition system can be with video speech synchronous recording, will
Operating efficiency can be leveraged.But under actual environment background noise conditions, carry out remote speech collection still there is high difficulty
Degree, under especially tangible outdoor bad weather.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of sound pick up equipment that can carry out voice collecting in outdoor at a distance.
The technical solution of the present invention is to provide the pickup dress that a kind of a kind of outdoor with following structure uses at a distance
Putting, including the staggered reflecting surface on pedestal of pedestal and at least two groups, described pedestal is provided with reflecting surface one by one
Corresponding pickup cartridge, described pedestal is provided with the shell of accommodating pickup cartridge, and described shell end face is provided with through hole and inner side
Wall is provided with noise-reducing structure, and described pickup cartridge free end end is provided with the first high directional microphone, described pickup cartridge and base
The end that seat connects is provided with the high directional microphone of second relative with reflecting surface, described the first high directional microphone and second
At least one omni-directional microphone it is placed with between high directional microphone.
After using above structure, the sound pick up equipment that a kind of outdoor of the present invention uses at a distance, compared with prior art, have
Advantages below: remote speech must utilize the high directivity microphone of harvester to guarantee to collect at a distance when gathering
Voice, pickup cartridge at least two group and staggered in the application, it is compared to generic array formula and arranges, be arranged on pickup cartridge
The noise of the seizure surrounding that omni-directional microphone can equalize, and volume is little, the noise Rx at the pickup cartridge center that array is arranged
More with the noise Rx deviation of both sides, make difficult treatment, result is inaccurate, and the many pickup cartridges that i.e. the application is arranged make to make an uproar
Sonication is simple, and the noise signal of feedback is uniform, and is provided with the shell of accommodating pickup cartridge, described shell at described pedestal
End face is provided with through hole and madial wall is provided with noise-reducing structure, can be keeped out wind and rain by shell, is possible not only to avoid air-flow and rain
Drip the directly contact to microphone, and can return in shell can being eliminated due to noise-reducing structure again with a certain degree of block noise
Sound and the noise of shell self, in making shell, noise is in good level, it is to avoid to the first high directional microphone and
The interference of two high directional microphones, and use the first high directional microphone being arranged on pickup cartridge free end end, can the most in short-term
Between the most directly receive remote speech at sound source, the second high directional microphone matches with poly-sound structure can be by the first high sensing
Microphone receive after most of sound source at phonetic incepting, and due to pickup cartridge arrange after volume little, can be directed at more accurately
A certain single human body or other sound sources, be difficult at noise jamming, especially sound source near at sound source have relatively strong background noise
Time, the application pickup cartridge longitudinal direction array arranges the noise signal not only fed back and is uniformly easy to process, and the first high sensing Mike
Wind, the second high directional microphone, poly-sound structure energy high directivity also the most fully receive target sound source voice signal, and can with regard
Frequently model forms linkage, is together rotated by pickup cartridge and the camera gathering video, and is calculated by image size in video
Sound source distance.
Preferably, described noise-reducing structure refers to that housing interior side-wall is provided with stepped flexible sound-absorbing block.
Preferably, described reflecting surface refers to sound reflection focuses to the trumpet type at the second high directional microphone or parabolic
The reflecting surface of type.
Preferably, described pedestal is provided with the driving assembly driving reflecting surface to move axially along pickup cartridge.
Preferably, the position on described pedestal and between neighboring reflection face is provided with poly-sound block.
Preferably, described poly-sound block is detachably connected on pedestal.
Preferably, described poly-sound block is provided with inserted block, and described pedestal is provided with the cannelure matched with inserted block.
Preferably, on described pedestal, pickup cartridge is rotatably connected on pedestal respectively, and described poly-sound structure all followed by phase
Corresponding pickup cartridge rotates.
Preferably, it is provided with the scrobicular ring of sound reflection outside described reflecting surface.
Preferably, described pedestal is provided with the turntable driving pedestal to rotate, and described pedestal is respectively provided on two sides with camera
With light emitting source
Accompanying drawing explanation
Fig. 1 is the structural representation one of the sound pick up equipment that a kind of outdoor of the present invention uses at a distance.
Fig. 2 is the structural representation two of the sound pick up equipment that a kind of outdoor of the present invention uses at a distance.
Fig. 3 is the structural representation three of the sound pick up equipment that a kind of outdoor of the present invention uses at a distance.
Fig. 4 is pickup cartridge and the structural representation of reflecting surface of the present invention.
Fig. 5 is the schematic diagram of sound-source signal of the present invention and noise signal.
Shown in figure: 1, pedestal；2, pickup cartridge；3, the first high directional microphone；4, the second high directional microphone；5、
Omni-directional microphone；6, reflecting surface；7, turntable；8, shell.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Referring to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the one of the present invention is applicable under remote high-noise environment
Sound collector, including the staggered reflecting surface 6 on pedestal 1 of pedestal 1 and at least two groups, described pedestal 1 is provided with
With reflecting surface 6 pickup cartridge 2 one to one, described pickup cartridge 2 free end end is provided with the first high directional microphone 3, institute
The pickup cartridge 2 stated is provided with the second high directional microphone 4 relative with reflecting surface 6, described with the end that pedestal 1 connects
Being placed with at least one omni-directional microphone 5 between one high directional microphone 3 and the second high directional microphone 4, described is anti-
Penetrate face 6 to refer to sound reflection focuses to the trumpet type at the second high directional microphone 4 or the reflecting surface 6 of parabolic type, can gather
Collecting more sound-source signal and accurate feedback to the second high directional microphone 4, make reception more preferable, the first described height refers to
It is placed with at least one omni-directional microphone 5 between microphone 3 and the second high directional microphone 4, is positioned at the first high sensing
Arrange near microphone 3 and the second high directional microphone 4 and be equipped with omni-directional microphone 5, be used for detecting and point to closest to high
The noise signal that microphone receives, and owing to the second high sensing Mike receives the reflected signal of reflecting surface 6, due to reflecting surface 6
Being arranged on pedestal 1, the noise having the generation of pedestal 1 body construction is sent by reflecting surface 6, is arranged on the second high sensing
Equal omni-directional microphone 5 is set near microphone 4 and can effectively receive noise signal, must profit when remote speech gathers
Guarantee to collect remote speech with the high directivity microphone of harvester, in the application pickup cartridge 2 at least two group and
Staggered, it is compared to generic array formula and arranges, be arranged in the seizure four that on pickup cartridge 2, omni-directional microphone 5 can equalize
The noise in week, and volume is little, the noise Rx at pickup cartridge 2 center that array is arranged is more with the noise Rx deviation of both sides,
Making difficult treatment, result is inaccurate, and the many pickup cartridges 2 that i.e. the application is arranged make noise processed simple, the noise letter of feedback
Number uniformly, and be provided with the shell 8 of accommodating pickup cartridge 2 at described pedestal 1, described shell 8 end face be provided with through hole and
Madial wall is provided with noise-reducing structure, can be keeped out wind and rain by shell 8, and be possible not only to avoid air-flow and raindrop to microphone is straight
Contact, and can eliminate echo and shell 8 in shell 8 due to noise-reducing structure again with a certain degree of block noise
The noise of self, in making shell 8, noise is in good level, it is to avoid refer to the first high directional microphone 3 and the second height
To the interference of microphone 4, and use the first high directional microphone 3 being arranged on pickup cartridge 2 free end end, can the most in short-term
Between the most directly receive remote speech at sound source, the second high directional microphone 4 matches with reflecting surface 6 and can be referred to by the first height
To microphone 3 receive after most of sound source at phonetic incepting, and due to pickup cartridge 2 arrange after volume little, can be more accurate
The a certain single human body of alignment or other sound sources, be difficult to be had at noise jamming, especially sound source near at sound source carry on the back more by force
During scape noise, the noise signal that the application pickup cartridge 2 not only feeds back uniformly is easy to process, and the first high directional microphone 3,
Second high directional microphone 4, reflecting surface 6 energy high directivity also fully receives target sound source voice signal, high by first afterwards
Directional microphone 3 signal forms the first main signal by filter circuit and gain circuitry, is believed by the second high directional microphone 4
Number by filter circuit and by omni-directional microphone 5 signal by squelch circuit, the circuit signal superposition shape will handled well afterwards
Subtracting each other and completing denoising between signal is become to form the second main signal, the first main signal and the second main signal superposition and strengthen and carry out
Array algorithm completes output, and can form linkage with video model, and described pedestal 1 is provided with the rotation driving pedestal 1 to rotate
Turntable 7, is i.e. together rotated by pickup cartridge 2 and the camera gathering video, and calculates sound source by image size in video
Distance.
Described pedestal 1 is provided with the driving assembly driving reflecting surface 6 to move axially along pickup cartridge 2, by by reflecting surface
6 can move axially back and forth along pickup cartridge 2, can complete different sound source and can accurately converge to apart from the sound-source signal of lower reflection
On second high directional microphone 4, the range measurement of sound source can be calculated by image size in video, or array microphone
Between the deviation of signal that formed calculate, or make to arrange extra ranging component, such as laser ranging component.
Position on described pedestal 1 and between neighboring reflection face 6 is provided with poly-sound block, increases reflecting surface 6 further
Long-pending, make more sound source model converge on the second high directional microphone 4, described poly-sound block is detachably connected on pedestal 1
On, make structure adapt to the change under varying environment, as relatively near in sound source in the case of poly-sound block need not be installed, reduce volume,
Described poly-sound block is provided with inserted block, and described pedestal 1 is provided with the cannelure matched with inserted block, is joined with projection by slot
Close, easy for installation, simple in construction, it is provided with the scrobicular ring of sound reflection outside described reflecting surface 6, by sound reflection is
Referring to that at sound source, sector signal is through scrobicular ring multiple reflections, deviation, toward the direction of pickup cartridge 2, makes signal energy at sound source less
Being received by omni-directional microphone 5, external noise is the most less reflexes to the second high directional microphone 4 by pedestal 1 surface,
Making signal at sound source be strengthened, scrobicular ring and the cannelure of reflection sound can be same structure, make overall structure more step up
Gather together reason.
On described pedestal 1, pickup cartridge 2 is rotatably connected on pedestal 1 respectively, and described reflecting surface 6 all followed by relatively
The pickup cartridge 2 answered rotates, and makes pickup cartridge 2 to relatively rotate, and the most pickup cartridges 2 can form similar fan-shaped shape,
Receive the signal of the cone that sound source sends more accurately, and can in the middle part of a certain degree of minimizing pickup cartridge 2 omnidirectional emerging
Microphone receives sound-source signal, makes signal at sound source be strengthened.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (10)
1. the sound pick up equipment that an outdoor uses at a distance, it is characterised in that: include that pedestal (1) and at least two groups are interlocked
The reflecting surface (6) being arranged on pedestal (1), described pedestal (1) is provided with and picks up one to one with reflecting surface (6)
Sound tube (2), described pedestal (1) is provided with the shell (8) of accommodating pickup cartridge (2), described shell (8) end face
Being provided with through hole and madial wall is provided with noise-reducing structure, described pickup cartridge (2) free end end is provided with the first high directional microphone
(3), described pickup cartridge (2) is provided with the second high sensing relative with reflecting surface (6) with the end that pedestal (1) connects
Microphone (4), is placed with at least between the first described high directional microphone (3) and the second high directional microphone (4)
One omni-directional microphone (5).
The sound pick up equipment that a kind of outdoor the most according to claim 1 uses at a distance, it is characterised in that: described disappears
Sound structure refers to that shell (8) madial wall is provided with stepped flexible sound-absorbing block.
The sound pick up equipment that a kind of outdoor the most according to claim 1 uses at a distance, it is characterised in that: described is anti-
Penetrate face (6) and refer to focus to sound reflection trumpet type or the reflecting surface of parabolic type at the second high directional microphone (4) place
(6)。
The sound pick up equipment that a kind of outdoor the most according to claim 3 uses at a distance, it is characterised in that: described base
Seat (1) is provided with the driving assembly driving reflecting surface (6) to move axially along pickup cartridge (2).
5. the sound pick up equipment used at a distance according to a kind of outdoor described in claim 1 or 4, it is characterised in that: described
Pedestal (1) position that is upper and that be positioned between neighboring reflection face (6) be provided with poly-sound block.
The sound pick up equipment that a kind of outdoor the most according to claim 5 uses at a distance, it is characterised in that: described is poly-
Sound block is detachably connected on pedestal (1).
The sound pick up equipment that a kind of outdoor the most according to claim 6 uses at a distance, it is characterised in that: described is poly-
Sound block is provided with inserted block, and described pedestal (1) is provided with the cannelure matched with inserted block.
The sound pick up equipment that a kind of outdoor the most according to claim 1 uses at a distance, it is characterised in that: described base
The upper pickup cartridge (2) of seat (1) is rotatably connected on pedestal (1) respectively, and described poly-sound structure all followed by corresponding
Pickup cartridge (2) rotates.
The sound pick up equipment that a kind of outdoor the most according to claim 1 uses at a distance, it is characterised in that: described is anti-
Penetrate outside, face (6) to be provided with the scrobicular ring of sound reflection.
The sound pick up equipment that a kind of outdoor the most according to claim 1 uses at a distance, it is characterised in that: described
Pedestal (1) is provided with the turntable (7) driving pedestal (1) to rotate, and described pedestal (1) is respectively provided on two sides with camera
With light emitting source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266609.2A CN105898635B (en) | 2016-04-26 | 2016-04-26 | A kind of sound pick up equipment that outdoor uses at a distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266609.2A CN105898635B (en) | 2016-04-26 | 2016-04-26 | A kind of sound pick up equipment that outdoor uses at a distance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105898635A true CN105898635A (en) | 2016-08-24 |
| CN105898635B CN105898635B (en) | 2019-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610266609.2A Active CN105898635B (en) | 2016-04-26 | 2016-04-26 | A kind of sound pick up equipment that outdoor uses at a distance |
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| CN (1) | CN105898635B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123423A (en) * | 2017-06-07 | 2017-09-01 | 微鲸科技有限公司 | Voice pick device and multimedia equipment |
| CN108389586A (en) * | 2017-05-17 | 2018-08-10 | 宁波桑德纳电子科技有限公司 | A kind of long-range audio collecting device, monitoring device and long-range collection sound method |
| CN108769876A (en) * | 2018-08-01 | 2018-11-06 | 佛山市威耳听力技术有限公司 | Multidirectional sound pick up equipment |
| WO2020151303A1 (en) * | 2019-01-23 | 2020-07-30 | 阿里巴巴集团控股有限公司 | Audio collection apparatus, and device and method for audio processing |
| CN112770208A (en) * | 2021-01-18 | 2021-05-07 | 塔里木大学 | Intelligent voice noise reduction acquisition device based on automatic control classification |
| CN112959336A (en) * | 2021-03-01 | 2021-06-15 | 河南大学 | Two-wheeled robot based on sound source positioning path tracking function |
| CN114827792A (en) * | 2022-04-06 | 2022-07-29 | 易科技术(东莞)有限公司 | Sound pickup structure and using method thereof |
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| US8587715B2 (en) * | 2011-01-07 | 2013-11-19 | JVC Kenwood Corporation | Sound pickup device |
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| CN102196333A (en) * | 2010-12-16 | 2011-09-21 | 宁波三维技术有限公司 | Long-distance sound pickup device for video positioning |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389586A (en) * | 2017-05-17 | 2018-08-10 | 宁波桑德纳电子科技有限公司 | A kind of long-range audio collecting device, monitoring device and long-range collection sound method |
| CN107123423A (en) * | 2017-06-07 | 2017-09-01 | 微鲸科技有限公司 | Voice pick device and multimedia equipment |
| CN108769876A (en) * | 2018-08-01 | 2018-11-06 | 佛山市威耳听力技术有限公司 | Multidirectional sound pick up equipment |
| WO2020151303A1 (en) * | 2019-01-23 | 2020-07-30 | 阿里巴巴集团控股有限公司 | Audio collection apparatus, and device and method for audio processing |
| CN112770208A (en) * | 2021-01-18 | 2021-05-07 | 塔里木大学 | Intelligent voice noise reduction acquisition device based on automatic control classification |
| CN112959336A (en) * | 2021-03-01 | 2021-06-15 | 河南大学 | Two-wheeled robot based on sound source positioning path tracking function |
| CN114827792A (en) * | 2022-04-06 | 2022-07-29 | 易科技术(东莞)有限公司 | Sound pickup structure and using method thereof |
Also Published As
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|---|---|
| CN105898635B (en) | 2019-02-12 |
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Inventor after: Zhu Yunjie Inventor after: Xu Weiming Inventor after: He Ting Inventor after: Huang Songyue Inventor before: Zhu Yunhai Inventor before: Tong Feng Inventor before: Chen Lei Inventor before: Xu Weiming Inventor before: He Ting Inventor before: Huang Songyue Inventor before: Zhou Yan |
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Denomination of invention: Pickup device for outdoor long-distance use Effective date of registration: 20190711 Granted publication date: 20190212 Pledgee: Ningbo Tianjin Enterprise Service Co., Ltd. Pledgor: Ningbo Sangdena Electronic Technology Co., Ltd. Registration number: 2019330000191 |
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Date of cancellation: 20200720 Granted publication date: 20190212 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: NINGBO SANGDENA ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: 2019330000191 |
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Denomination of invention: Pickup device for outdoor long-distance use Effective date of registration: 20200722 Granted publication date: 20190212 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: NINGBO SANGDENA ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2020330000527 |
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Date of cancellation: 20211015 Granted publication date: 20190212 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: NINGBO SANGDENA ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2020330000527 |
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