CN110838210A - Alarm method, alarm device and storage medium - Google Patents
Alarm method, alarm device and storage medium Download PDFInfo
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- CN110838210A CN110838210A CN201810936180.2A CN201810936180A CN110838210A CN 110838210 A CN110838210 A CN 110838210A CN 201810936180 A CN201810936180 A CN 201810936180A CN 110838210 A CN110838210 A CN 110838210A
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- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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Abstract
The present disclosure relates to an alarm method, apparatus, and storage medium. The method comprises the following steps: acquiring audio information of environmental noise; when the alarm is judged to be needed, determining the frequency of the alarm sound for alarming according to the audio information; outputting the warning tone according to the determined frequency. Like this, can determine the audio frequency of more suitable frequency in real time and report to the police, not only can avoid warning sound to be drowned by ambient noise and can not play the effect of warning, can avoid too obvious alarm sound to arouse unnecessary noise pollution moreover.
Description
Technical Field
The present disclosure relates to the field of audio information control, and in particular, to an alarm method, apparatus, and storage medium.
Background
In the related art, various alarm devices have been used to indicate risks in a plurality of fields. Among them, the most common is an alarm device that alarms by sound.
For example, some vehicles may emit warning sounds to alert drivers, pedestrians, etc. in a dangerous situation. However, sometimes, due to the influence of environmental noise, the warning sound cannot play a very obvious role in danger warning for drivers and pedestrians, the warning effect is not ideal, and if pedestrians and vehicles do not avoid, in addition, the drivers have no danger awareness, and traffic accidents are likely to be caused.
Disclosure of Invention
The invention aims to provide an alarming method, an alarming device and a storage medium with obvious alarming effect.
In order to achieve the above object, the present disclosure provides an alarm method. The method comprises the following steps: acquiring audio information of environmental noise; when the alarm is judged to be needed, determining the frequency of the alarm sound for alarming according to the audio information; outputting the warning tone according to the determined frequency.
Optionally, the audio information includes a spectral relationship between acoustic power and frequency, and the determining a frequency of a warning tone for warning according to the audio information includes: according to the frequency spectrum relationship, finding the frequency corresponding to the maximum sound power; and when the predetermined plurality of frequencies include a frequency greater than the frequency corresponding to the maximum sound power, determining the minimum value of the frequencies greater than the frequency corresponding to the maximum sound power as the frequency of the warning sound for alarming.
Optionally, the audio information includes a spectral relationship between acoustic power and frequency, and the determining a frequency of a warning tone for warning according to the audio information includes: judging whether a first frequency interval with a preset width exists according to the frequency spectrum relationship, wherein the ratio of the sound power in the first frequency interval to the total sound power is larger than a preset ratio threshold value; when it is determined that the first frequency interval exists and frequencies greater than the maximum frequency in the first frequency interval are included in the predetermined plurality of frequencies, the minimum value of the frequencies greater than the maximum frequency in the first frequency interval is determined as the frequency of the warning sound for warning.
Optionally, the determining a frequency of a warning tone for warning according to the audio information further includes: and when the first frequency interval is judged to be absent, determining a predetermined second frequency interval as the frequency of the warning sound for alarming.
Optionally, the method further comprises: when the alarm is judged to be needed, determining the sound pressure level of the alarm sound according to the audio information; the step of outputting the warning tone according to the determined frequency includes: outputting the warning sound according to the determined frequency and sound pressure level.
Optionally, the audio information includes a sound pressure level, and the determining the sound pressure level of the warning sound according to the audio information includes: and determining the sound pressure level of the warning sound according to the sound pressure level of the environment noise, so that the sound pressure level of the warning sound is greater than the sound pressure level of the environment noise, and the difference between the sound pressure level of the warning sound and the sound pressure level of the environment noise is a preset sound pressure level.
Optionally, the predetermined sound pressure level is greater than or equal to 6 dB.
Optionally, the method is applied to a vehicle, the ambient noise is noise in a cab, and the step of outputting the warning sound according to the determined frequency comprises: outputting the warning sound in the cab according to the determined frequency; or, the environmental noise is noise outside the driver's cab, and the step of outputting the warning sound according to the determined frequency includes: outputting the warning sound outside the driver's cabin according to the determined frequency.
The present disclosure also provides an alarm device. The device comprises: the acquisition module is used for acquiring the audio information of the environmental noise; the first determining module is used for determining the frequency of warning sound for alarming according to the audio information when the alarm is judged to be required; and the output module is used for outputting the warning sound according to the determined frequency.
The present disclosure also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above-described method.
Through the technical scheme, when audio alarm is carried out, the frequency of the alarm sound is determined by the audio information of the environmental noise. Like this, can determine the audio frequency of more suitable frequency in real time and report to the police, not only can avoid warning sound to be drowned by ambient noise and can not play the effect of warning, can avoid too obvious alarm sound to arouse unnecessary noise pollution moreover.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart of an alarm method provided by an exemplary embodiment;
FIG. 2 is a flow chart of an alarm method provided by another exemplary embodiment;
FIGS. 3a and 3b are schematic diagrams of an exemplary embodiment of a warning method applied to a vehicle;
fig. 4 is a block diagram of an alarm device provided in an exemplary embodiment.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, the use of directional words such as "up, down, left, right" generally refers to directions relative to the normal driving of the vehicle, unless otherwise stated.
FIG. 1 is a flow chart of an alarm method provided by an exemplary embodiment. As shown in fig. 1, the method may include the following steps.
In step S11, audio information of ambient noise is acquired.
The audio information may include sound pressure, sound intensity, sound power, frequency of sound, etc. The sound signal may be converted by a microphone into an electrical signal from which audio information is determined using conventional audio spectral analysis methods. There are many possibilities for audio information in the environment when alerting.
In step S12, when it is determined that an alarm is required, the frequency of a warning tone for the alarm is determined based on the audio information.
Simply, there may be a predetermined correspondence between the audio information of the ambient noise and the frequency of the warning tone, which may be experimentally or empirically derived in advance and stored. The frequency of the warning sound can be found out in a table look-up mode according to the acquired audio information of the environmental noise. In the above correspondence, the frequency of the warning sound can make the warning sound have a more obvious effect in the corresponding environmental noise, and meanwhile, unnecessary noise pollution is not caused.
In step S13, a warning sound is output according to the determined frequency.
For example, after the frequency of the warning tone is determined, the warning tone may be called from a processor in which the frequency sound signal is stored in advance. In this embodiment, the processor may store sound signals of a plurality of frequencies (or a plurality of frequency intervals) in advance. When the frequency of the warning tone is determined in step S12, a selection may be made among the stored frequencies (or frequency bins).
Through the technical scheme, when audio alarm is carried out, the frequency of the alarm sound is determined by the audio information of the environmental noise. Like this, can determine the audio frequency of more suitable frequency in real time and report to the police, not only can avoid warning sound to be drowned by ambient noise and can not play the effect of warning, can avoid too obvious alarm sound to arouse unnecessary noise pollution moreover.
In another embodiment, the audio information may comprise a spectral relationship between acoustic power and frequency, e.g. a spectrogram of acoustic power over frequency may be obtained by a spectrometer. In this embodiment, the determining the frequency of the warning tone for warning according to the audio information may include:
according to the frequency spectrum relationship, finding the frequency corresponding to the maximum sound power; when the predetermined plurality of frequencies include a frequency greater than a frequency corresponding to the maximum sound power, a minimum value of the frequencies greater than the frequency corresponding to the maximum sound power is determined as a frequency of a warning sound for warning.
Wherein the plurality of frequencies are predetermined in order to store warning sounds of the plurality of frequencies in the processor in advance, and when one of the predetermined plurality of frequencies is selected, the processor may directly output the warning sound of the selected frequency. Alternatively, the processor may output the warning tone of the selected frequency by filtering.
For example, the predetermined frequencies include 1000Hz, 2000Hz, and 3000Hz, the frequency corresponding to the maximum sound power is 1800Hz, the predetermined frequencies include 2000Hz and 3000Hz, which are higher than the frequency corresponding to the maximum sound power, and the minimum 2000Hz is selected as the frequency of the warning sound.
In this embodiment, the frequency of the warning sound is set to be greater than the frequency corresponding to the maximum sound power in the ambient noise, so that the warning sound is easier to hear than the ambient noise, and the warning effect is obvious.
In yet another embodiment, the audio information may comprise a spectral relationship between acoustic power and frequency, e.g. a spectrogram of acoustic power over frequency may be obtained by a spectrometer. In this embodiment, the determining the frequency of the warning tone for warning according to the audio information may include:
judging whether a first frequency interval with a preset width exists or not according to the frequency spectrum relationship, wherein the ratio of the sound power in the first frequency interval to the total sound power is larger than a preset ratio threshold value; when it is determined that the first frequency section exists and frequencies greater than the maximum frequency in the first frequency section are included in the predetermined plurality of frequencies, the minimum value of the frequencies greater than the maximum frequency in the first frequency section is determined as the frequency of the warning sound for warning. Wherein the predetermined effect of the plurality of frequencies may be the same as in the above-described embodiment.
For example, the predetermined plurality of frequencies includes 1000Hz, 2000Hz, and 3000Hz, and the predetermined width is a width of 200 Hz. The predetermined duty threshold is 50%. And judging that the ratio of the sound power in a first frequency interval between 1400Hz and 1600Hz to the total sound power is more than 50%, and the predetermined frequencies comprise 2000Hz and 3000Hz which are more than the maximum frequency 1600Hz in the first frequency interval 1400Hz and 1600Hz, and determining the minimum value 2000Hz of the 2000Hz and 3000Hz which is more than the maximum frequency 1600Hz as the frequency of the warning tone for alarming.
In this embodiment, the frequency of the warning sound is set to be greater than the frequency of the frequency interval of the environmental noise which has the largest contribution to the sound power, so that the warning sound is easier to hear than the environmental noise, and the warning effect is obvious.
On the basis of the above embodiment, determining the frequency of the warning tone for warning according to the audio information may further include: when it is determined that the first frequency interval does not exist, a predetermined second frequency interval is determined as the frequency of the warning sound for warning.
That is, when it is determined that the first frequency interval does not exist, it is considered that the sound power of each frequency in the ambient noise is relatively equalized, and at this time, the ambient noise is close to the white noise, and the warning tone of the frequency of the second frequency interval (for example, 800Hz to 1600Hz) having a relatively high degree of recognition may be selected to make the warning tone be relatively easily recognized in the ambient noise.
In yet another embodiment, the sound pressure level of the warning tone may also be determined. Fig. 2 is a flow chart of an alarm method provided by another exemplary embodiment. As shown in fig. 2, on the basis of fig. 1, the method may further include step S12': and when the alarm is judged to be needed, determining the sound pressure level of the alarm sound according to the audio information.
In this embodiment, the step of outputting the warning tone according to the determined frequency (step S13) may include the step S131 of: and outputting a warning sound according to the determined frequency and sound pressure level.
In order to make the warning sound more noticeable than the ambient noise, the sound pressure level of the warning sound may be determined according to the sound pressure level of the ambient noise. The audio information includes sound pressure levels. Simply, the sound pressure level of the warning sound may be made greater than the sound pressure level of the ambient noise, and the difference between the sound pressure level of the warning sound and the sound pressure level of the ambient noise is a predetermined sound pressure level. The sound pressure level described in this embodiment is the total sound pressure level.
For example, if the sound pressure level of the ambient noise is 50dB, the sound pressure level of the warning sound may be determined to be 50dB + n, where n is the predetermined sound pressure level. Research proves that when n is more than or equal to 6dB, the warning sound is more obvious relative to the environmental noise. The predetermined sound pressure level n may be greater than or equal to 6 dB.
The sound pressure level and frequency of the output warning sound may be the determined sound pressure level and frequency. In this embodiment, the sound pressure level of the warning sound is set to be greater than the sound pressure level of the ambient noise, so that the warning sound is easier to hear than the ambient noise, and the warning effect is obvious.
The above method of the present disclosure may be applied to a vehicle, and the environmental noise may be noise inside a cab and noise outside the cab. When the ambient noise is noise in the cab, the step of outputting a warning sound according to the determined frequency (step S13) may include: outputting a warning sound in the cab according to the determined frequency; when the ambient noise is noise outside the driver' S cab, the step of outputting a warning sound according to the determined frequency (step S13) may include: and outputting a warning sound outside the driver's cab according to the determined frequency.
That is, when the vehicle needs to give an alarm, if the driver is warned in the cab, the warning sound can be determined by referring to the environmental noise in the cab; if the pedestrian is warned outside the driver's cab, the warning sound can be determined by referring to the ambient noise outside the driver's cab. The triggering mode of the alarm can comprise overspeed, obstacle reminding and the like.
For example, a plurality of distance measuring devices (e.g., infrared ray detecting devices, radar distance measuring devices) may be installed to the outside of the vehicle. Fig. 3a and 3b are schematic diagrams illustrating an alarm method applied to a vehicle according to an exemplary embodiment. Fig. 3a is a side view and fig. 3b is a top view. A plurality of microphones 1 and a plurality of speakers 2 may be arranged at the outer side edge of the vehicle. A microphone 1 and a loudspeaker 2 are also arranged in the driver's cabin.
For example, when it is detected that the vehicle turns right, there is a pedestrian on the right side of the vehicle, and the distance is less than the predetermined distance threshold, the warning sound output from the speaker 2 on the right side of the vehicle may be determined with reference to the ambient noise collected by the microphone 1 on the right side of the vehicle, and the warning sound output from the speaker 2 in the cab may be determined with reference to the ambient noise collected by the microphone 1 in the cab according to the above-described method;
when it is detected that the vehicle turns left, a pedestrian is on the left side of the vehicle, and the distance is smaller than the predetermined distance threshold, according to the method, the warning sound output from the speaker 2 on the left side of the vehicle can be determined by referring to the environmental noise collected by the microphone 1 on the left side of the vehicle, and the warning sound output from the speaker 2 in the cab can be determined by referring to the environmental noise collected by the microphone 1 in the cab;
when it is detected that the vehicle is backed up, a pedestrian is behind the vehicle, and the distance is smaller than the predetermined distance threshold, according to the above method, the warning sound output from the speaker 2 at the rear end of the vehicle may be determined with reference to the ambient noise collected by the microphone 1 at the rear end of the vehicle, and the warning sound output from the speaker 2 in the cab may be determined with reference to the ambient noise collected by the microphone 1 in the cab.
Therefore, according to the positions of pedestrians, obstacles and the like relative to the vehicle, the environmental noise of the corresponding position is obtained, the alarm of the corresponding position is started to output the corresponding warning sound, and the targeted alarm can be performed.
Wherein the collected data of the ambient noise can be periodically deleted. For example, the time interval of sampling the environmental noise is, for example, 1s, and the storage time of the data acquired each time is, for example, 1min, that is, the data acquired 1min later is deleted. In this way, the sound signal can be updated in real time and released periodically, so that the space for storing data is saved.
The present disclosure also provides an alarm device. Fig. 4 is a block diagram of an alarm device provided in an exemplary embodiment. As shown in fig. 4, the alarm device 10 may include an obtaining module 11, a first determining module 12, and an output module 13.
The obtaining module 11 is configured to obtain audio information of ambient noise. The first determining module 12 is used for determining the frequency of the warning tone for alarming according to the audio information when the alarm is judged to be needed. The output module 13 is configured to output the warning tone according to the determined frequency.
Optionally, the audio information includes a spectral relationship between sound power and frequency, and the first determining module 12 includes a first searching sub-module and a first determining sub-module.
The first searching submodule is used for searching the frequency corresponding to the maximum sound power according to the frequency spectrum relation.
The first determination sub-module determines, when a frequency greater than a frequency corresponding to the maximum acoustic power is included in the predetermined plurality of frequencies, a minimum value of the frequencies greater than the frequency corresponding to the maximum acoustic power as a frequency of a warning sound for warning.
Optionally, the audio information includes a spectral relationship between sound power and frequency, and the first determining module 12 includes a determining submodule and a second determining submodule.
The judgment submodule is used for judging whether a first frequency interval with a preset width exists according to the frequency spectrum relation, and the ratio of the sound power in the first frequency interval to the total sound power is larger than a preset ratio threshold value.
The second determination submodule is configured to determine, when it is determined that the first frequency interval exists and a frequency greater than the maximum frequency in the first frequency interval is included in the predetermined plurality of frequencies, the minimum value of the frequencies greater than the maximum frequency in the first frequency interval as the frequency of the warning sound for warning.
Optionally, the first determination module 12 further comprises a third determination submodule.
And the third determining submodule is used for determining a predetermined second frequency interval as the frequency of the warning sound for alarming when the first frequency interval is judged not to exist.
Optionally, the apparatus 10 further comprises a second determining module. And the second determining module is used for determining the sound pressure level of the warning sound according to the audio information when the alarm is judged to be required.
In this embodiment, the output module 13 includes a first output submodule. The first output submodule is used for outputting warning sound according to the determined frequency and sound pressure level.
Optionally, the audio information comprises a sound pressure level, and the second determining module comprises a fourth determining submodule.
The fourth determining submodule is used for determining the sound pressure level of the warning sound according to the sound pressure level of the environment noise, so that the sound pressure level of the warning sound is larger than the sound pressure level of the environment noise, and the difference between the sound pressure level of the warning sound and the sound pressure level of the environment noise is the preset sound pressure level.
Optionally, the predetermined sound pressure level is greater than or equal to 6 dB.
Optionally, the device is applied to a vehicle, the ambient noise is noise in a cab, and the output module 13 is further configured to output the warning sound in the cab according to the determined frequency;
or, the environmental noise is noise outside the driving cab, and the output module 13 is further configured to output the warning sound outside the driving cab according to the determined frequency.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Through the technical scheme, when audio alarm is carried out, the frequency of the alarm sound is determined by the audio information of the environmental noise. Like this, can determine the audio frequency of more suitable frequency in real time and report to the police, not only can avoid warning sound to be drowned by ambient noise and can not play the effect of warning, can avoid too obvious alarm sound to arouse unnecessary noise pollution moreover.
The present disclosure also discloses a computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, realizes the steps of the above-mentioned method.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A method of alerting, the method comprising:
acquiring audio information of environmental noise;
when the alarm is judged to be needed, determining the frequency of the alarm sound for alarming according to the audio information;
outputting the warning tone according to the determined frequency.
2. The method of claim 1, wherein the audio information includes a spectral relationship between acoustic power and frequency, and wherein determining the frequency of a warning tone for an alarm based on the audio information includes:
according to the frequency spectrum relationship, finding the frequency corresponding to the maximum sound power;
and when the predetermined plurality of frequencies include a frequency greater than the frequency corresponding to the maximum sound power, determining the minimum value of the frequencies greater than the frequency corresponding to the maximum sound power as the frequency of the warning sound for alarming.
3. The method of claim 1, wherein the audio information includes a spectral relationship between acoustic power and frequency, and wherein determining the frequency of a warning tone for an alarm based on the audio information includes:
judging whether a first frequency interval with a preset width exists according to the frequency spectrum relationship, wherein the ratio of the sound power in the first frequency interval to the total sound power is larger than a preset ratio threshold value;
when it is determined that the first frequency interval exists and frequencies greater than the maximum frequency in the first frequency interval are included in the predetermined plurality of frequencies, the minimum value of the frequencies greater than the maximum frequency in the first frequency interval is determined as the frequency of the warning sound for warning.
4. The method of claim 3, wherein determining a frequency of a warning tone for an alert based on the audio information further comprises:
and when the first frequency interval is judged to be absent, determining a predetermined second frequency interval as the frequency of the warning sound for alarming.
5. The method of claim 1, further comprising: when the alarm is judged to be needed, determining the sound pressure level of the alarm sound according to the audio information;
the step of outputting the warning tone according to the determined frequency includes: outputting the warning sound according to the determined frequency and sound pressure level.
6. The method of claim 5, wherein the audio information comprises a sound pressure level, and wherein determining the sound pressure level of the warning sound from the audio information comprises:
and determining the sound pressure level of the warning sound according to the sound pressure level of the environment noise, so that the sound pressure level of the warning sound is greater than the sound pressure level of the environment noise, and the difference between the sound pressure level of the warning sound and the sound pressure level of the environment noise is a preset sound pressure level.
7. The method of claim 6, wherein the predetermined sound pressure level is greater than or equal to 6 dB.
8. The method of claim 1, wherein the method is applied to a vehicle, the ambient noise is noise in a cab, and the step of outputting the warning sound according to the determined frequency comprises: outputting the warning sound in the cab according to the determined frequency;
alternatively, the first and second electrodes may be,
the ambient noise is noise outside the driver's cab, and the step of outputting the warning sound according to the determined frequency includes: outputting the warning sound outside the driver's cabin according to the determined frequency.
9. An alarm device, characterized in that the device comprises:
the acquisition module is used for acquiring the audio information of the environmental noise;
the first determining module is used for determining the frequency of warning sound for alarming according to the audio information when the alarm is judged to be required;
and the output module is used for outputting the warning sound according to the determined frequency.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
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| CN201810936180.2A CN110838210A (en) | 2018-08-16 | 2018-08-16 | Alarm method, alarm device and storage medium |
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| CN201810936180.2A CN110838210A (en) | 2018-08-16 | 2018-08-16 | Alarm method, alarm device and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111815877A (en) * | 2020-08-21 | 2020-10-23 | 汉得利（常州）电子股份有限公司 | White noise warning method and device |
| CN114724319A (en) * | 2021-01-04 | 2022-07-08 | 中国石油化工股份有限公司 | System and method for intelligently adjusting alarm volume and frequency of well site |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1801607A (en) * | 2004-12-31 | 2006-07-12 | 广达电脑股份有限公司 | Audio output device, radio communication apparatus and its method for dynamically adjusting volume |
| CN101373959A (en) * | 2007-08-21 | 2009-02-25 | 微星科技股份有限公司 | Apparatus and method for regulating warning tone based on circumstance |
| CN101600132A (en) * | 2009-06-05 | 2009-12-09 | 北京中星微电子有限公司 | Method and device at portable handheld device adjusted audio file play effect |
| CN103745037A (en) * | 2013-12-24 | 2014-04-23 | 华电重工股份有限公司 | Internal noise source identification method of waste heat boiler |
| CN104104800A (en) * | 2014-07-25 | 2014-10-15 | Tcl通讯（宁波）有限公司 | Method for adjusting volume output of mobile terminal according to environment noises and mobile terminal |
| US20140337018A1 (en) * | 2011-12-02 | 2014-11-13 | Hytera Communications Corp., Ltd. | Method and device for adaptively adjusting sound effect |
| CN106868796A (en) * | 2017-03-09 | 2017-06-20 | 青岛海尔智能技术研发有限公司 | A kind of washing machine noise reduction method and washing machine |
| CN108111950A (en) * | 2017-12-25 | 2018-06-01 | 广州市尊浪电器有限公司 | A kind of volume adjusting method and speaker based on ambient noise |
-
2018
- 2018-08-16 CN CN201810936180.2A patent/CN110838210A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1801607A (en) * | 2004-12-31 | 2006-07-12 | 广达电脑股份有限公司 | Audio output device, radio communication apparatus and its method for dynamically adjusting volume |
| CN101373959A (en) * | 2007-08-21 | 2009-02-25 | 微星科技股份有限公司 | Apparatus and method for regulating warning tone based on circumstance |
| CN101600132A (en) * | 2009-06-05 | 2009-12-09 | 北京中星微电子有限公司 | Method and device at portable handheld device adjusted audio file play effect |
| US20140337018A1 (en) * | 2011-12-02 | 2014-11-13 | Hytera Communications Corp., Ltd. | Method and device for adaptively adjusting sound effect |
| CN103745037A (en) * | 2013-12-24 | 2014-04-23 | 华电重工股份有限公司 | Internal noise source identification method of waste heat boiler |
| CN104104800A (en) * | 2014-07-25 | 2014-10-15 | Tcl通讯（宁波）有限公司 | Method for adjusting volume output of mobile terminal according to environment noises and mobile terminal |
| CN106868796A (en) * | 2017-03-09 | 2017-06-20 | 青岛海尔智能技术研发有限公司 | A kind of washing machine noise reduction method and washing machine |
| CN108111950A (en) * | 2017-12-25 | 2018-06-01 | 广州市尊浪电器有限公司 | A kind of volume adjusting method and speaker based on ambient noise |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111815877A (en) * | 2020-08-21 | 2020-10-23 | 汉得利（常州）电子股份有限公司 | White noise warning method and device |
| CN114724319A (en) * | 2021-01-04 | 2022-07-08 | 中国石油化工股份有限公司 | System and method for intelligently adjusting alarm volume and frequency of well site |
| CN114724319B (en) * | 2021-01-04 | 2024-01-30 | 中国石油化工股份有限公司 | System and method for intelligently adjusting alarm volume and frequency of well site |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200225 |
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| WW01 | Invention patent application withdrawn after publication |