CN110830876A - Sound box capable of automatically adjusting volume - Google Patents
Sound box capable of automatically adjusting volume Download PDFInfo
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- CN110830876A CN110830876A CN201810895380.8A CN201810895380A CN110830876A CN 110830876 A CN110830876 A CN 110830876A CN 201810895380 A CN201810895380 A CN 201810895380A CN 110830876 A CN110830876 A CN 110830876A
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- decibel
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- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
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- Circuit For Audible Band Transducer (AREA)
Abstract
The invention relates to a sound box capable of automatically adjusting volume, which comprises a sound box body and an ultra wide band positioning label arranged on a user; an ultra-wideband positioning base station; a signal processing module; a controller; the ultra-wideband positioning base station induces a wireless pulse signal sent by the ultra-wideband positioning label, obtains distance information between the ultra-wideband positioning base station and the ultra-wideband positioning label and transmits the distance information to the signal processing module; the signal processing module calculates a decibel compensation value required by the sound box in the moving process of a user according to the attenuation rule of sound in the air, and inputs an electric signal to the controller; the controller adjusts the volume output decibel of the sound box. According to the sound box capable of automatically adjusting the volume, the ultra-wideband positioning base station and the ultra-wideband positioning tag are used as distance detection elements, so that the measurement precision is improved, and the influence of most middle obstacles is effectively avoided; the decibel compensation value is calculated by utilizing the attenuation rule of sound in the air, so that the accuracy of volume compensation is improved.
Description
Technical Field
The invention relates to the technical field of sound equipment, in particular to a sound equipment capable of automatically adjusting volume.
Background
At present, the stereo set of playing is often placed at indoor or outdoor fixed position, and people can move about near it, and when the volume of broadcast was certain, along with people keep away from the stereo set more and more, the sound of hearing the stereo set broadcast can weaken gradually for the song that people heard is intermittent and intermittent, greatly reduced user's experience.
The prior art provides an intelligent stereo set of infrared induction discernment, mainly utilizes infrared sensor response human distance, handles the data of gathering to the size of the start-up and closing and the regulation volume of realization control stereo set. The prior art uses the infrared induction principle and has the following defects: firstly, the infrared ray penetration ability is weak, and no obstacle can exist between a user and the infrared sensor; secondly, the infrared sensor is easily interfered by heat sources, lamplight and the like, so that the positioning precision and the accuracy are reduced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a sound box capable of automatically adjusting the volume.
The invention is realized by the following technical scheme: a sound box capable of automatically adjusting volume comprises a sound box body, an ultra wide band positioning label arranged on a user body, an ultra wide band positioning base station, a signal processing module and a controller; the ultra-wideband positioning base station, the signal processing module and the controller are all arranged in the sound box; the ultra-wideband positioning base station is electrically connected with the input end of the signal processing module; the output end of the signal processing module is electrically connected with the input end of the controller; the output end of the controller is electrically connected with the sound box; the ultra-wideband positioning base station induces a wireless pulse signal of the ultra-wideband positioning tag, obtains distance information between the ultra-wideband positioning base station and the ultra-wideband positioning tag, and outputs an electric signal to the signal processing module; the signal processing module calculates a decibel compensation value AdiV required by the sound equipment in the moving process of the ultra-wideband positioning label according to the attenuation rule of sound in the air, and inputs an electric signal to the controller; the controller adjusts the volume output decibel of the sound box.
Compared with the prior art, the sound box capable of automatically adjusting the volume uses the ultra-wideband positioning base station and the ultra-wideband positioning label as the distance detection element, so that the measurement precision is improved, and the influence of most middle obstacles is effectively avoided; the decibel compensation value is calculated by utilizing the attenuation rule of the sound in the air, so that the accuracy of volume compensation is improved, and the decibel of the sound heard by a user is always kept consistent.
Further, the signal processing module comprises a mobile distance recording unit, a standard distance recording unit, a decibel recording unit, a recording switch and a signal comparison unit; the ultra-wideband positioning base station outputs wireless pulse signals to the standard distance recording unit and the moving distance recording unit at the same time; the moving distance recording unit records the real-time moving distance r1 between the ultra-wideband positioning label and the ultra-wideband positioning base station and outputs a signal to the signal comparison unit; when a user sets the optimal volume at a certain position away from the sound box through a recording switch, the standard distance recording unit and the standard decibel recording unit store the corresponding standard distance r2 and the standard decibel value A and output the standard distance r2 and the standard decibel value A to the signal comparison unit; the signal comparison unit compares the signals according to the attenuation rule of sound in the air, calculates the sum of the decibel compensation value AdiV and the standard decibel value A required by the sound box in the moving process of the ultra-wide band positioning label, and outputs an electric signal to the controller.
By setting the standard distance r1 and the standard decibel value A, the optimal volume can be set according to the requirements of different people.
Further, the sound is a point sound source sound box.
Further, the calculation formula of the decibel compensation value is as follows: decibel compensation value
Further, the sound box is a line sound source sound box.
Further, the calculation formula of the decibel compensation value is as follows: decibel compensation value
Further, the sound box is provided with an optimal volume setting button for controlling the recording switch and setting the optimal volume.
Further, the method also comprises an optimal volume setting remote control; the optimal volume setting remote control is wirelessly connected with the recording switch, so that the optimal volume can be set remotely.
Drawings
FIG. 1 is a schematic diagram of the structure of the sound box for automatically adjusting the volume of the sound of the present invention;
fig. 2 is a circuit block diagram of the sound for automatically adjusting the volume of the present invention.
Detailed Description
Referring to fig. 1 to 2, the sound box capable of automatically adjusting volume includes an ultra-wideband positioning tag 100, an ultra-wideband positioning base station 200, a signal processing module 300, a controller 400, and a sound box 500; the signal processing module 300 comprises a moving distance recording unit 310, a standard distance recording unit 320, a decibel recording unit 330, a recording switch 340 and a signal comparison unit 350; the sound box 500 is a point sound source sound box; an optimal volume setting button 510 is provided on the sound box 500.
The connection mode of the sound equipment for automatically adjusting the volume in the embodiment is as follows: the ultra-wideband positioning tag 100 is arranged on a body and moves along with a person; the ultra-wideband positioning base station 200 is arranged in a sound box 500; the ultra-wideband positioning base station 200 is electrically connected with the mobile distance recording unit 310 and the standard distance recording unit 320 at the same time; the standard distance recording unit 320 is electrically connected with the recording switch 340; the decibel recording unit 330 is electrically connected with the recording switch 340; the moving distance recording unit 310 is electrically connected with the signal comparison unit 350; the recording switch 340 is electrically connected with the signal comparison unit 350; the signal comparison unit 350 is electrically connected with the controller 400; the controller 400 is connected with the sound box 500; the optimal volume control button 510 is connected to the record switch 340.
The working principle of the sound equipment capable of automatically adjusting the volume in the embodiment is as follows: the ultra-wideband positioning base station 200 senses a wireless pulse signal sent by the ultra-wideband positioning tag 100 to obtain distance information between the ultra-wideband positioning tag and the ultra-wideband positioning tag, namely real-time distance information between a sound and a user is obtained; further outputs electric signals to the moving distance recording unit 310 and the standard distance recording unit 320, respectively; the moving distance recording unit 310 records the real-time moving distance r1 between the ultra-wideband positioning tag 100 and the ultra-wideband positioning base station 200, and outputs a signal to the signal comparison unit 350; when the user presses the optimal volume setting button 510 at a certain position away from the sound box 500, the standard distance recording unit 320 records the distance information between the current ultra-wideband positioning tag 100 and the ultra-wideband positioning base station 200, i.e. the standard distance r2, and outputs the distance information to the recording switch 340; meanwhile, the standard decibel recording unit 330 records the volume of the output of the sound at that time, i.e., a standard decibel value a, and outputs the volume to the recording switch 340; the recording switch 340 stores the standard distance r2 and the standard decibel value a, and outputs to the signal comparison unit 350.
Further, the signal comparison unit 350 calculates a decibel compensation value AdiV between the real-time movement distance r1 and the standard distance r2 when the user needs to move in the moving process according to the attenuation rule of the sound of the point sound source sound box 500 in the air, and then calculates a sum of the decibel compensation value AdiV and the standard decibel value a, that is, an output decibel value of the sound box 500, which is required to adjust the volume; and inputs an electric signal to the controller 400; the controller 400 adjusts the volume output decibel value of the sound box 500 so that the sound heard by the user is always consistent with the set standard decibel value a.
Specifically, according to the attenuation rule of the point sound source sound box 500 in the air, the calculation formula of the decibel compensation value AdiV is
When the real-time moving distance r1 is smaller than the standard distance r2, the decibel compensation value AdiV is a negative value, that is, when the user is closer to the sound box 500 relative to the standard distance r2, the volume output decibel value of the sound box 500 needs to be reduced, so that the sound decibel heard by the user is consistent with the set standard decibel value a; when the real-time moving distance r1 is greater than the standard distance r2, the decibel compensation value AdiV is a positive value, that is, when the user is farther away from the sound box 500 relative to the standard distance r2, the volume output decibel value of the sound box 500 needs to be increased, so that the decibel of the sound heard by the user is consistent with the set standard decibel value a.
Compared with the prior art, the ultra-wideband positioning tag 100 and the ultra-wideband positioning base station 200 are used as distance detection elements, so that the measurement precision is improved, and the influence of most middle obstacles is effectively avoided; the standard distance r2 and the standard decibel value A are recorded through the optimal volume setting button 510, so that different users can set different optimal volumes; in addition, the invention utilizes the attenuation rule of the sound in the air to calculate the decibel compensation value AdiV, improves the accuracy of volume compensation, and ensures that the sound decibel heard by a user is always consistent with the set standard decibel value A.
The sound equipment for automatically adjusting the volume of the present invention is not limited to the above embodiments, for example, the sound equipment may be a line sound source sound box or a surface sound source sound box, and the calculation rule of the signal processing module may be set according to the sound attenuation rule of the line sound source sound box, that is, the calculation formula of the decibel compensation value is the decibel compensation value
When the real-time moving distance r1 is smaller than the standard distance r2, the decibel compensation value AdiV is a negative value, that is, when the user is closer to the sound box 500 relative to the standard distance r2, the volume output decibel value of the sound box 500 needs to be reduced, so that the sound decibel heard by the user is consistent with the set standard decibel value a; when the real-time moving distance r1 is greater than the standard distance r2, the decibel compensation value AdiV is a positive value, that is, when the user is farther away from the sound box 500 relative to the standard distance r2, the volume output decibel value of the sound box 500 needs to be increased, so that the decibel of the sound heard by the user is consistent with the set standard decibel value a.
For another example, the optimal volume setting button 510 may be set to be remotely controlled for optimal volume setting through a wireless connection or other connection, and is wirelessly connected to the recording switch 340; the user can control the remote control through a remote distance, and further control the recording switch 340 to set the optimum volume.
The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. The utility model provides an automatic stereo set of regulation volume, includes the audio amplifier body, its characterized in that still includes: the ultra-wideband positioning system comprises an ultra-wideband positioning tag, an ultra-wideband positioning base station, a signal processing module and a controller, wherein the ultra-wideband positioning tag is arranged on a user; the ultra-wideband positioning base station is arranged in the sound box; the ultra-wideband positioning base station is electrically connected with the input end of the signal processing module; the output end of the signal processing module is electrically connected with the input end of the controller; the output end of the controller is electrically connected with the sound box; the ultra-wideband positioning base station induces a wireless pulse signal sent by the ultra-wideband positioning tag, obtains distance information between the ultra-wideband positioning tag and the ultra-wideband positioning tag, and outputs an electric signal to the signal processing module; the signal processing module calculates a decibel compensation value AdiV required by the sound box in the moving process of the ultra-wideband positioning tag according to the attenuation rule of sound in the air, and inputs an electric signal to the controller; the controller adjusts the volume output decibel of the sound equipment.
2. The sound equipment of claim 1, wherein: the signal processing module comprises a mobile distance recording unit, a standard distance recording unit, a decibel recording unit, a recording switch and a signal comparison unit; the ultra-wideband positioning base station outputs wireless pulse signals to the standard distance recording unit and the moving distance recording unit at the same time; the moving distance recording unit records the real-time moving distance r1 between the ultra-wideband positioning label and the ultra-wideband positioning base station and outputs a signal to the signal comparison unit; when a user is at a certain position away from the sound box and sets the optimal volume through the recording switch, the standard distance recording unit and the standard decibel recording unit store the corresponding standard distance r2 and the standard decibel value A and output the standard distance r2 and the standard decibel value A to the signal comparison unit; the signal comparison unit compares the signals according to the attenuation rule of sound in the air, calculates the sum of the decibel compensation value AdiV and the standard decibel value A required by the sound box in the moving process of the ultra-wide band positioning label, and outputs an electric signal to the controller.
3. The sound equipment of claim 2, wherein: the sound box is a point sound source sound box.
4. The sound equipment of claim 3, wherein: the calculation formula of the decibel compensation value is as follows: decibel compensation value
5. The sound equipment of claim 2, wherein: the sound box is a line sound source sound box.
6. The sound equipment of claim 5, wherein: the calculation formula of the decibel compensation value is as follows: decibel compensation value
7. The sound equipment of any one of claims 2 to 6, wherein: the sound box is provided with an optimal volume setting button to control the recording switch and set the optimal volume.
8. The sound equipment of claim 7, wherein: the method also comprises the following steps of setting remote control for the optimal volume; the optimal volume setting remote control is wirelessly connected with the recording switch, so that the optimal volume can be set remotely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895380.8A CN110830876A (en) | 2018-08-08 | 2018-08-08 | Sound box capable of automatically adjusting volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895380.8A CN110830876A (en) | 2018-08-08 | 2018-08-08 | Sound box capable of automatically adjusting volume |
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| Publication Number | Publication Date |
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| CN110830876A true CN110830876A (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810895380.8A Pending CN110830876A (en) | 2018-08-08 | 2018-08-08 | Sound box capable of automatically adjusting volume |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113423037A (en) * | 2021-05-12 | 2021-09-21 | 世强先进(深圳)科技股份有限公司 | Indoor sound adjusting method and system |
| CN114268880A (en) * | 2021-12-20 | 2022-04-01 | 珠海格力电器股份有限公司 | Sound effect following method, device and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008017367A (en) * | 2006-07-07 | 2008-01-24 | Yamaha Corp | Automatic gain control circuit |
| CN104378564A (en) * | 2014-11-06 | 2015-02-25 | 四川长虹电器股份有限公司 | Automatic volume adjusting method for smart television set |
| CN107276706A (en) * | 2017-06-15 | 2017-10-20 | 电子科技大学 | A kind of directive property source of sound broadcast system based on UWB |
-
2018
- 2018-08-08 CN CN201810895380.8A patent/CN110830876A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008017367A (en) * | 2006-07-07 | 2008-01-24 | Yamaha Corp | Automatic gain control circuit |
| CN104378564A (en) * | 2014-11-06 | 2015-02-25 | 四川长虹电器股份有限公司 | Automatic volume adjusting method for smart television set |
| CN107276706A (en) * | 2017-06-15 | 2017-10-20 | 电子科技大学 | A kind of directive property source of sound broadcast system based on UWB |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113423037A (en) * | 2021-05-12 | 2021-09-21 | 世强先进(深圳)科技股份有限公司 | Indoor sound adjusting method and system |
| CN114268880A (en) * | 2021-12-20 | 2022-04-01 | 珠海格力电器股份有限公司 | Sound effect following method, device and system |
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Application publication date: 20200221 |