CN101795427B - Bidimensional cruciate sound column with controllable directive property - Google Patents
Bidimensional cruciate sound column with controllable directive property Download PDFInfo
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- CN101795427B CN101795427B CN2009102665615A CN200910266561A CN101795427B CN 101795427 B CN101795427 B CN 101795427B CN 2009102665615 A CN2009102665615 A CN 2009102665615A CN 200910266561 A CN200910266561 A CN 200910266561A CN 101795427 B CN101795427 B CN 101795427B
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- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
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Abstract
The invention discloses a bidimensional cruciate sound column with controllable directive property, which comprises a vertical sound column box body and a horizontal sound column box body; the vertical sound column box body and the horizontal sound column box body are respectively and internally provided with a loudspeaker, and are fixedly connected to present in a cruciate shape; and the cruciate sound column with the controllable directive property can enable the vertical radiation angle and the horizontal radiation angle of the sound column to become wider, regulates and controls the vertical radiation direction and the horizontal radiation direction of the sound column to change continuously according to the need within a wider range, can flexibly change the wave packet direction of the sound column, facilitates constructing various sound effects, has good sound amplification effect, and is convenient and practical. The invention can serve as a sound column with excellent performances to be widely applied to fields of waiting rooms, lobbies, subways and the like.
Description
Technical field
The present invention relates to a kind of sound column, particularly a kind of sound column of bidimensional cross controllable directive.
Background technology
Sound column is a kind of electro-acoustic element of being made up of some loud speakers and casing.The sound column vertical directivity is narrower, therefore is widely used in various public address occasions.But in some places, as Waiting Lounge, boarding lounge, subway, hall, church etc., because the reverberation time is longer, reverberation is too much, causes the public address definition to descend.And the problems referred to above also can solve with the linear array speaker system, but require the body of speaker system less, and cooperate the aspect can compare difficulty with building.The vertical radiation angle of traditional sound column or horizontal radiation angle are generally all very narrow, can not satisfy the broadcast demand of spacious public domain, can not build the sound effect of various variations.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of this invention is to provide the sound column of the respond well bidimensional cross controllable directive of a kind of public address.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of sound column of bidimensional cross controllable directive comprises vertical sound column casing and horizontal sound column casing, is respectively equipped with loud speaker in described vertical sound column casing and the horizontal sound column casing, and described vertical sound column casing is cross with horizontal sound column casing and fixedlys connected.
Further, described vertical sound column casing is connected with horizontal sound column casing integral forming or screw.
Further, the input of described each loud speaker all is connected with the sound driver module, described sound driver module includes dsp controller, one input of described dsp controller is connected with audio signal, another input of described dsp controller is connected with the main control system that Control Software is housed, the output of described dsp controller is connected with the D class A amplifier A, and the output of described D class A amplifier A is connected to the input of loud speaker.
Further, described dsp controller comprises delayed processing circuit, equilibrium treatment circuit and gain controlling treatment circuit, the output of described delayed processing circuit is connected to the input of equilibrium treatment circuit, and the output of described equilibrium treatment circuit is connected to the input of gain controlling treatment circuit.
Further, the communication interface between described main control system and the dsp controller is RS232 communication interface or RS485 communication interface.
Further, be provided with at least 6 loud speakers respectively side by side in described vertical sound column casing and the horizontal sound column casing.
Further, the input of described dsp controller also is connected with a change over switch, and loud speaker and the loud speaker in the described sound column casing that described change over switch is controlled in the described sound column casing use simultaneously or use separately respectively.
Further, also comprise the analog to digital converter that is used for the simulated audio signal digitized processing of input in the described dsp controller.
Further, the vertical radiation angle of described sound column or horizontal radiation angle are 9 ° to 90 ° variations continuously.
Further, the vertical radiation direction of described sound column or horizontal radiation direction are-45 ° to+45 ° variations continuously.
The invention has the beneficial effects as follows: cross controllable directive sound column all broadens sound column vertical radiation angle and horizontal radiation angle, and the vertical radiation direction and the horizontal radiation direction of control regulation and control sound column can both change in relative broad range as required continuously; Can change the beam direction of sound column flexibly, the various sound effects of convenient construction, it is effective to amplify, convenient and practical.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a cross sound column structure chart of the present invention;
Fig. 2 is a driver module block diagram of the present invention;
Fig. 3 is a cross sound column driver module connection layout of the present invention.
Embodiment
With reference to Fig. 1, a kind of sound column of bidimensional cross controllable directive, comprise vertical sound column casing 11 and horizontal sound column casing 12, be respectively equipped with loud speaker 6 in described vertical sound column casing 11 and the horizontal sound column casing 12, described vertical sound column casing 11 is cross with horizontal sound column casing 12 and fixedlys connected.
Further, described vertical sound column casing 11 is connected with horizontal sound column casing 12 integral formings or screw.
With further reference to Fig. 2, the input of described each loud speaker 6 all is connected with the sound driver module, described sound driver module includes dsp controller 13, one input of described dsp controller 13 is connected with audio signal, another input of described dsp controller 13 is connected with the main control system 4 that Control Software is housed, the output of described dsp controller 13 is connected with D class A amplifier A 5, and the output of described D class A amplifier A 5 is connected to the input of loud speaker 6.
Further, described dsp controller 13 comprises delayed processing circuit 1, equilibrium treatment circuit 2 and gain controlling treatment circuit 3, the output of described delayed processing circuit 1 is connected to the input of equilibrium treatment circuit 2, and the output of described equilibrium treatment circuit 2 is connected to the input of gain controlling treatment circuit 3.
Further, the communication interface between described main control system 4 and the dsp controller 13 is RS232 communication interface or RS485 communication interface.
With further reference to Fig. 3, be provided with at least 6 loud speakers 6 respectively side by side in described vertical sound column casing 11 and the horizontal sound column casing 12, Fig. 3 has showed cross sound column sound driver module annexation.
Further, the input of described dsp controller 13 also is connected with a change over switch, and loud speaker 6 and the loud speaker 6 in the described sound column casing 2 that described change over switch is controlled in the described sound column casing 1 use simultaneously or use separately respectively.
Further, also comprise the analog to digital converter that is used for the simulated audio signal digitized processing of input in the described dsp controller 13.
Further, the vertical radiation angle of described sound column or horizontal radiation angle are 9 ° to 90 ° variations continuously.
Further, the vertical radiation direction of described sound column or horizontal radiation direction are-45 ° to+45 ° variations continuously.
For making public address respond well, as improvement, before every loud speaker of sound column, add the D class A amplifier A, can make more convenient operation, control simpler.
As improvement, before the D of every loud speaker class A amplifier A, add DSP (digital signal processor), flexible.
The DSP time-delay control of each independent sector is adjusted by certain rule, can make sound column point to angle tilt on demand.
DSP control volume and the balanced loudspeaker high frequency decay that can make the sound column two ends reach and reduce the purpose that secondary lobe changes orientation angle.
By different Control Software is installed on main control system 4, main control system 4 running control softwares can be realized the different results of broadcast of audio frequency, and are flexible.Only need change Control Software at different demands, and not need hardware change or cross sound column to put any change in orientation.
More than be that preferable enforcement of the present invention is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of spirit of the present invention, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (7)
1. the sound column of a bidimensional cross controllable directive, comprise vertical sound column casing (11) and horizontal sound column casing (12), described vertical sound column casing (11) is cross with horizontal sound column casing (12) and fixedlys connected, inside is respectively equipped with loud speaker (6), it is characterized in that: the input of described each loud speaker (6) all is connected with the sound driver module, described sound driver module includes dsp controller (13), one input of described dsp controller (13) is connected with audio signal, another input of described dsp controller (13) is connected with the main control system (4) that Control Software is housed, the output of described dsp controller (13) is connected with D class A amplifier A (5), and the output of described D class A amplifier A (5) is connected to the input of loud speaker (6).
2. the sound column of a kind of bidimensional cross controllable directive according to claim 1 is characterized in that: described vertical sound column casing (11) is connected with horizontal sound column casing (12) integral forming or screw.
3. the sound column of a kind of bidimensional cross controllable directive according to claim 1, it is characterized in that: described dsp controller (13) comprises delayed processing circuit (1), equilibrium treatment circuit (2) and gain controlling treatment circuit (3), the output of described delayed processing circuit (1) is connected to the input of equilibrium treatment circuit (2), and the output of described equilibrium treatment circuit (2) is connected to the input of gain controlling treatment circuit (3).
4. according to the sound column of each described a kind of bidimensional cross controllable directive of claim 1 to 3, it is characterized in that: the communication interface between described main control system (4) and the dsp controller (13) is RS232 communication interface or RS485 communication interface.
5. according to the sound column of each described a kind of bidimensional cross controllable directive of claim 1 to 3, it is characterized in that: be provided with at least 6 loud speakers (6) respectively side by side in described vertical sound column casing (11) and the horizontal sound column casing (12).
6. according to the sound column of each described a kind of bidimensional cross controllable directive of claim 1 to 3, it is characterized in that: the input of described dsp controller (13) also is connected with a change over switch, and loud speaker (6) and the loud speaker (6) in the described sound column casing (2) that described change over switch is controlled in the described sound column casing (1) use simultaneously or use separately respectively.
7. according to the sound column of each described a kind of bidimensional cross controllable directive of claim 1 to 3, it is characterized in that: also comprise the analog to digital converter that is used for the simulated audio signal digitized processing of input in the described dsp controller (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102665615A CN101795427B (en) | 2009-12-28 | 2009-12-28 | Bidimensional cruciate sound column with controllable directive property |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102665615A CN101795427B (en) | 2009-12-28 | 2009-12-28 | Bidimensional cruciate sound column with controllable directive property |
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| Publication Number | Publication Date |
|---|---|
| CN101795427A CN101795427A (en) | 2010-08-04 |
| CN101795427B true CN101795427B (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102665615A Expired - Fee Related CN101795427B (en) | 2009-12-28 | 2009-12-28 | Bidimensional cruciate sound column with controllable directive property |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103634720A (en) * | 2012-08-21 | 2014-03-12 | 联想(北京)有限公司 | Playing control method and electronic equipment |
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Address after: 510000 Guangdong city of Guangzhou province Panyu District Shi Lou Zhen Shi Lian Lu Shi Lou Road No. 10 Patentee after: GUANGZHOU RUIFENG AUDIO TECHNOLOGY Corp.,Ltd. Address before: Panyu District City, Guangdong province Guangzhou city bridge 511440 Yushan Road No. 106 two floor Patentee before: GUANGZHOU RUIFENG AUDIO TECHNOLOGY Corp.,Ltd. |
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Denomination of invention: Bidimensional cruciate sound column with controllable directive property Effective date of registration: 20190322 Granted publication date: 20111102 Pledgee: Guangzhou finance re Company limited by guarantee Pledgor: GUANGZHOU RUIFENG AUDIO TECHNOLOGY Corp.,Ltd. Registration number: 2019440000111 |
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Date of cancellation: 20220525 Granted publication date: 20111102 Pledgee: Guangzhou finance re Company limited by guarantee Pledgor: GUANGZHOU RUIFENG AUDIO TECHNOLOGY Corp.,Ltd. Registration number: 2019440000111 |
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