CN201752132U - Domestic directional sound propagation system - Google Patents
Domestic directional sound propagation system Download PDFInfo
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- CN201752132U CN201752132U CN2010202104568U CN201020210456U CN201752132U CN 201752132 U CN201752132 U CN 201752132U CN 2010202104568 U CN2010202104568 U CN 2010202104568U CN 201020210456 U CN201020210456 U CN 201020210456U CN 201752132 U CN201752132 U CN 201752132U
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Abstract
The utility model discloses a domestic directional sound propagation system which comprises a directional sound propagation device that comprises a voice signal processing unit, a modulation processing unit, a power amplification unit, an impedance matching unit and an ultrasonic wave transducer, wherein a signal input end of the voice signal processing unit is connected with a sound output end of a domestic sound source, and a signal output end of the voice signal processing unit is connected with a signal input end of the modulation processing unit; a signal output end of the modulation processing unit is connected with a signal input end of the power amplification unit; a signal output end of the power amplification unit is connected with a signal input end of the impedance matching unit; a signal output end of the impedance matching unit is connected with a signal input end of the ultrasonic wave transducer; furthermore, the domestic directional sound propagation system also comprises a wireless sound signal transmission module and a wireless sound signal receiving module used for assisting the realization of wireless transmission of sound signals. The device structure of the domestic directional sound propagation system is designed aiming at the family life according to the characteristics of low directional sound wave attenuation and long transmission distance, and the domestic directional sound propagation system is compact in structure, convenient to use and strong in sound directionality.
Description
Technical field
The utility model relates to the voice directional spreading technical field, particularly a kind of family expenses voice directional spreading system.
Background technology
The modern pays attention to privacy, no matter be that everyone wishes that the comings and goings of oneself being engaged in do not bothered by others in family life or office occasion.Particularly not ideal enough in some house types, in the strong inadequately family of space privacy, often independently do not divide between each functional areas, therefore, as the kinsfolk carry out some such as see TV or listen to the music movable the time, cause interference to being engaged in other movable members in the same space easily.
At present, by turning down volume or wearing methods such as earphone and avoid this problem, still, the effect of these methods still is not ideal enough, turns down volume not only can make the people not hear the content of program, still can other people be affected simultaneously often; Not only on comfort, be weak and wear earphone, also have the problem inconvenient, that the constraint sense is strong of using simultaneously.
Therefore, be necessary to develop a kind of voice directional spreading equipment that can easily be used for family life, can realize that regional audio separates, thereby can not exert an influence other people normal activity not in this zone.
The utility model content
In view of this, the utility model purpose provides a kind of family expenses voice directional spreading system, made full use of that directed SATT is little, the characteristics of long transmission distance, at the characteristics of family life and design, had that directionality is good, a compact conformation, advantage easy to use.
The purpose of this utility model is achieved through the following technical solutions:
Family expenses voice directional spreading of the present utility model system comprises the voice directional spreading device, described voice directional spreading device comprises the voice signal processing unit, the modulation treatment unit, power amplification unit, impedance matching unit and ultrasonic transducer, the sound output of the signal input part of described voice signal processing unit and family expenses sound source links, the signal input part of the signal output part of voice signal processing unit and modulation treatment unit links, the signal output part of modulation treatment unit and the signal input part of power amplification unit link, the signal output part of power amplification unit and the signal input part of impedance matching unit link, and the signal output part of impedance matching unit and the signal input part of ultrasonic transducer link.
Further, described family expenses voice directional spreading system also comprises and cooperates wireless sound signals transmitter module and the wireless sound signals receiver module of realizing the voice signal wireless transmission, the input of described wireless sound signals transmitter module is used for linking with the sound output of family expenses sound source, and the voice signal processing unit signal input part in the signal output part of described wireless sound signals receiver module and the voice directional spreading device links;
Further, described wireless sound signals transmitter module comprises A/D conversion submodule, signal modulation submodule and digital signal emission submodule, described speech simulation signal is converted to digital signal by A/D conversion submodule, carry out carrier modulation by signal modulation submodule, the carrier signal after the modulation is launched by digital signal emission submodule;
Further, described wireless sound signals receiver module comprises that digital signal receives submodule, signal demodulation submodule and D/A conversion submodule, after described digital signal reception submodule receives and transmits, carry out demodulation by signal demodulation submodule, input to D/A conversion submodule and be converted to analog signal, the analog signal after the conversion inputs to the voice directional spreading device;
Further, described ultrasonic transducer is the piezoelectric supersonic wave transducer;
Further, described system also comprises the local oscillation signal source, and the signal output part in described local oscillation signal source and the carrier wave input of modulation treatment unit link;
Further, described voice directional spreading device also comprises base and poly-sound screen, described poly-sound screen is connected with base by extensible link, described ultrasonic transducer adopts linear arrays to be arranged on the poly-sound screen, and described wireless sound signals receiver module, voice signal processing unit, modulation treatment unit, power amplification unit, impedance matching unit are installed in base inside;
Further, the two ends of described scalable connecting rod are connected with base with poly-sound screen by the scalable connector respectively.
The beneficial effects of the utility model are:
1. apparatus structure of the present utility model is little according to directed SATT, the characteristics of long transmission distance, design at family life, its compact conformation, can be with voice signal by preliminary treatment, modulation, after amplification and coupling and the impedance conversion, Modulated Ultrasonic ripple signal by the ultrasonic transducer output directional, because the nonlinear effect of air, this sound only can be heard in the appointed area that ultrasonic wave is advanced, and because the centrality of sound, can not produce the acoustic crosstalk between the different home life zone, promptly realize " directed acoustic propagation " effect, and can not disturb other regional normal activities;
2. the utility model is by adopting wireless transmission and receive mode, can not need to utilize holding wire, can realize listening to the layout in zone easily, be not subjected to the short restriction of signal line length, it is fast simple and easy, and is easy for installation, has effectively avoided adopting the inconvenience of surface wiring, and when carrying out long-distance transmissions, the shortcoming that signal is disturbed easily.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can realize and obtain by following specification and claims.
Description of drawings
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 is a voice directional spreading device connection diagram;
Fig. 2 is the connection diagram of wireless voice transmitter module;
Fig. 3 is the connection diagram of wireless voice receiver module;
Fig. 4 is the external structure schematic diagram of voice directional spreading device;
Fig. 5 is a user mode schematic diagram of the present utility model.
Embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection range of the present utility model.
As shown in Figure 1, family expenses voice directional spreading system comprises voice directional spreading device 1, this device comprises voice signal processing unit 11, modulation treatment unit 12, power amplification unit 13, impedance matching unit 14 and ultrasonic transducer 15, the signal input part of voice signal processing unit 11 is used to insert the voice output signal of family expenses sound source, the signal input part of the signal output part of voice signal processing unit 11 and modulation treatment unit 12 links, the signal input part of the signal output part of modulation treatment unit 12 and power amplification unit 13 links, the signal input part of the signal output part of power amplification unit 13 and impedance matching unit 14 links, and the signal input part of the signal output part of impedance matching unit 14 and ultrasonic transducer 15 links.
In the present embodiment, system also comprises local oscillation signal source 4, and the carrier wave input of the signal output part in local oscillation signal source 4 and modulation treatment unit 11 links, and is used for incoming carrier and carries out the signal modulation.Ultrasonic transducer adopts the piezoelectric supersonic wave transducer, and this transducer is made in the piezoelectric ceramic of supersonic frequency by resonance, and the piezoelectric effect by material is a mechanical oscillation signal with electrical signal conversion.
In the present embodiment, family expenses voice directional spreading system also comprises wireless sound signals transmitter module 2 and the wireless sound signals receiver module 3 that cooperates realization voice signal wireless transmission, the input of wireless sound signals transmitter module 2 is used for linking with the sound output of family expenses sound source, and the signal input part of the signal output part of wireless sound signals receiver module 3 and voice directional spreading device 1 links.
As shown in Figure 2, wireless sound signals transmitter module 2 comprises A/D conversion submodule 21, signal modulation submodule 22 and digital signal emission submodule 23, the speech simulation signal is converted to digital signal by A/D conversion submodule 21, carry out carrier modulation by signal modulation submodule 22, the carrier signal after the modulation is launched by digital signal emission submodule 23.
As shown in Figure 3, wireless sound signals receiver module 3 comprises that digital signal receives submodule 31, signal demodulation submodule 32 and D/A conversion submodule 33, after digital signal reception submodule 31 receives and transmits, carry out demodulation by signal demodulation submodule 32, input to D/A conversion submodule 33 and be converted to analog signal, the analog signal after the conversion inputs to the voice directional spreading device.
As shown in Figure 4, in the present embodiment, system also comprises base 5 and poly-sound screen 6, poly-sound screen 6 is connected with base 5 by extensible link 7, ultrasonic transducer adopts linear arrays to be arranged on the poly-sound screen 6, and wireless sound signals receiver module 3, voice signal processing unit 11, modulation treatment unit 12, power amplification unit 13, impedance matching unit 14 are installed in base inside.The two ends of scalable connecting rod 7 are connected with base 5 by scalable connector and poly-sound screen 6 respectively, and this scalable connector can be hinged seat, universal joint etc.The external structure of the voice directional spreading device in the present embodiment has been used for reference the design of operation type desk lamp, its poly-sound screen can be realized the adjusting of wide-angle, thereby satisfy the needs of sound projection scope, and base is accommodated in its inside with a plurality of modules, simultaneously can also adopt USB interface, make wireless voice receiver module and modulation treatment unit realize that the plug and pull formula is connected, thus more convenient to use.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (8)
1. family expenses voice directional spreading system, it is characterized in that: described system comprises the voice directional spreading device, described voice directional spreading device (1) comprises voice signal processing unit (11), modulation treatment unit (12), power amplification unit (13), impedance matching unit (14) and ultrasonic transducer (15), the signal input part of described voice signal processing unit (11) and the sound output of family expenses sound source link, the signal input part of the signal output part of voice signal processing unit (11) and modulation treatment unit (12) links, the signal input part of the signal output part of modulation treatment unit (12) and power amplification unit (13) links, the signal input part of the signal output part of power amplification unit (13) and impedance matching unit (14) links, and the signal input part of the signal output part of impedance matching unit (14) and ultrasonic transducer (15) links.
2. family expenses voice directional spreading according to claim 1 system, it is characterized in that: described family expenses voice directional spreading system also comprises and cooperates wireless sound signals transmitter module (2) and the wireless sound signals receiver module (3) of realizing the voice signal wireless transmission, the input of described wireless sound signals transmitter module (2) is used for linking with the sound output of family expenses sound source, and voice signal processing unit (11) signal input part in the signal output part of described wireless sound signals receiver module (3) and the voice directional spreading device (1) links.
3. family expenses voice directional spreading according to claim 2 system, it is characterized in that: described wireless sound signals transmitter module (2) comprises A/D conversion submodule (21), signal modulation submodule (22) and digital signal emission submodule (23), the speech simulation signal is changed submodule (21) by A/D and is converted to digital signal, carry out carrier modulation by signal modulation submodule (22), the carrier signal after the modulation is launched submodule (23) by digital signal and is launched.
4. family expenses voice directional spreading according to claim 3 system, it is characterized in that: described wireless sound signals receiver module (3) comprises that digital signal receives submodule (31), signal demodulation submodule (32) and D/A conversion submodule (33), after described digital signal reception submodule (31) receives and transmits, carry out demodulation by signal demodulation submodule (32), input to D/A conversion submodule (33) and be converted to analog signal, the analog signal after the conversion inputs to the voice directional spreading device.
5. according to the arbitrary described family expenses voice directional spreading of claim 1 to 4 system, it is characterized in that: described ultrasonic transducer (15) is the piezoelectric supersonic wave transducer.
6. family expenses voice directional spreading according to claim 5 system, it is characterized in that: also comprise local oscillation signal source (4), the carrier wave input of the signal output part in described local oscillation signal source (4) and modulation treatment unit (12) links.
7. family expenses voice directional spreading according to claim 6 system, it is characterized in that: described voice directional spreading device also comprises base (5) and poly-sound screen (6), described poly-sound screen (6) is connected with base (5) by extensible link (7), described ultrasonic transducer (15) adopts linear arrays to be arranged on the poly-sound screen (6), and described wireless sound signals receiver module (3), voice signal processing unit (11), modulation treatment unit (12), power amplification unit (13), impedance matching unit (14) are installed in base inside.
8. family expenses voice directional spreading according to claim 7 system, it is characterized in that: the two ends of described scalable connecting rod (7) are shielded (6) by scalable connector and poly-sound respectively and are connected with base (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202104568U CN201752132U (en) | 2010-05-31 | 2010-05-31 | Domestic directional sound propagation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202104568U CN201752132U (en) | 2010-05-31 | 2010-05-31 | Domestic directional sound propagation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201752132U true CN201752132U (en) | 2011-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202104568U Expired - Fee Related CN201752132U (en) | 2010-05-31 | 2010-05-31 | Domestic directional sound propagation system |
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| Country | Link |
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| CN (1) | CN201752132U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107233201A (en) * | 2017-07-10 | 2017-10-10 | 广西浙缘农业科技有限公司 | One kind beats shoulder device |
| CN109219964A (en) * | 2016-06-03 | 2019-01-15 | 华为技术有限公司 | A kind of transmitting voice signal system and method based on ultrasound |
-
2010
- 2010-05-31 CN CN2010202104568U patent/CN201752132U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109219964A (en) * | 2016-06-03 | 2019-01-15 | 华为技术有限公司 | A kind of transmitting voice signal system and method based on ultrasound |
| US10945068B2 (en) | 2016-06-03 | 2021-03-09 | Huawei Technologies Co., Ltd. | Ultrasonic wave-based voice signal transmission system and method |
| CN107233201A (en) * | 2017-07-10 | 2017-10-10 | 广西浙缘农业科技有限公司 | One kind beats shoulder device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110223 Termination date: 20120531 |