CN109065014A - A kind of automobile active denoising method, system and device - Google Patents
A kind of automobile active denoising method, system and device Download PDFInfo
- Publication number
- CN109065014A CN109065014A CN201810767548.7A CN201810767548A CN109065014A CN 109065014 A CN109065014 A CN 109065014A CN 201810767548 A CN201810767548 A CN 201810767548A CN 109065014 A CN109065014 A CN 109065014A
- Authority
- CN
- China
- Prior art keywords
- automobile
- noise
- module
- barrier
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention discloses a kind of automobile active denoising method, system and devices, this method comprises: acquiring the realtime graphic on vehicle front road surface when running car, and identify and obtain barrier existing for road surface ahead；Road surface ahead is obtained there are when barrier in identification, ranging is carried out to the barrier, measurement obtains the distance between automobile and barrier；After the real time running data for obtaining automobile, calculates and obtain the first time information that wheel generates noise with bar contact shock, and read corresponding noise data from preset noise database；According to the noise data of reading, corresponding reverse phase noise signal is generated；The reverse phase noise signal is played in bottom of car when judging at wheels travel to barrier and hitting with bar contact according to first time information.The present invention can realize noise reduction before noise enters automotive interior in advance, and preferable noise reduction effect may be implemented, effectively realize active noise reduction, can be widely applied to automobile and automatically control in industry.
Description
Technical field
The present invention relates to technical field of automotive electronics, more particularly to a kind of automobile active denoising method, system and device.
Background technique
Active noise reduction techniques are to be neutralized noise, by generating the reverse phase sound wave equal with ambient noise to realize drop
The effect made an uproar.The active noise reduction techniques of automobile industry at present generate make an uproar in the car mainly after the noise by detecting engine
The reverse phase sound wave of sound carries out noise reduction for the part in interior small space, noise reduction work is arranged in compartment, due to loudspeaker
Directive property cannot achieve perfect control, preferable noise reduction effect can not all be realized to interior each position, when the head position of people
When mobile, noise reduction effect will have a greatly reduced quality.And since the glass of vehicle or some interior trims can also start automobile external
The incoming noise such as machine plays certain noise reduction effect, and the reverse phase acoustic ratio that will lead to loudspeaker sending in this case practical is made an uproar
Sound is big, causes additional noise pollution, causes the uncomfortable feelings such as the dizzy, uncomfortable in chest of passenger, vomiting, to body nocuousness.Total
For, noise reduction can not be effectively performed in current automobile active noise reduction techniques.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of automobile active denoising method, system and
Device.
The present invention solves the first technical solution used by its technical problem:
A kind of automobile active denoising method, comprising the following steps:
When running car, the realtime graphic on vehicle front road surface is acquired, and identifies and obtains obstacle existing for road surface ahead
Object；
Road surface ahead is obtained there are when barrier in identification, ranging is carried out to the barrier, measurement obtains automobile and obstacle
The distance between object；
After the real time running data for obtaining automobile, when calculating acquisition wheel and bar contact hit generate noise first
Between information, and read corresponding noise data from preset noise database；
According to the noise data of reading, corresponding reverse phase noise signal is generated；
According to first time information, when judging at wheels travel to barrier and being hit with bar contact, in automobile
Bottom plays the reverse phase noise signal.
Further, the real time running data of the automobile include at least speed, direction information and brake information.
Further, it is right to be stored with automobile institute when passing through different barriers with different speeds for the preset noise database
The noise data answered.
Further, it described the step of reading corresponding noise data from preset noise database, specifically includes:
According to the real time running data of automobile, the speed of automobile is obtained；
According to the barrier that speed and identification obtain, from preset noise database, read automobile with the speed
Speed of the difference less than the first preset threshold, the barrier when institute by with the barrier similarity being more than the second preset threshold
Corresponding noise data.
Further, in described the step of reading corresponding noise data from preset noise database, when preset noise
When corresponding noise data is not present in database, following steps are executed:
When automobile passes through barrier, acquisition wheel and bar contact hit the noise data generated, and automobile is worked as
The barrier that preceding speed and identification obtain is with the noise data associated storage into preset noise database.
The present invention solves the second technical solution used by its technical problem:
A kind of automobile active noise reduction system, the automobile active noise reduction system include image capture module, image procossing mould
Block, CPU module, range finder module, memory module, loudspeaker module and the electricity for powering for the automobile active noise reduction system
Source control module；
The output end of described image acquisition module is connected by image processing module and the first input end of CPU module, institute
The second input terminal for stating range finder module and CPU module connects, and described image processing module and CPU module connect with memory module
It connects, the output end of the CPU module and the input terminal of loudspeaker module connect；
Described image acquisition module is set to automotive front end, for acquiring the realtime graphic on vehicle front road surface；
Described image processing module, the realtime graphic for being acquired according to image capture module, identification obtain vehicle front
Barrier existing for road surface；
The range finder module, for measure obtain automobile and image processing module identification obtain barrier between away from
From；
The memory module, for storing preset noise database；
The CPU module is used for: after the real time running data for obtaining automobile, being calculated and is obtained wheel and bar contact shock
The first time information of noise is generated, and reads corresponding noise data from preset noise database；According to the noise of reading
Data generate corresponding reverse phase noise signal；According to first time information, judging at wheels travel to barrier and and obstacle
When object contact impact, sends the reverse phase noise signal at loudspeaker module and play；
The loudspeaker module is set to bottom of car, and the reverse phase noise signal for sending CPU module is converted into sound
It is played out after sound signal.
Further, the automobile active noise reduction system further includes power amplifier module, and the output end of the CPU module passes through power amplifier
The connection of the input terminal of module and loudspeaker module.
Further, the CAN bus of the third input terminal connection automobile of the CPU module, for obtaining the real-time row of automobile
Data are sailed, the real time running data of the automobile include at least speed, direction information and brake information.
Further, it is right to be stored with automobile institute when passing through different barriers with different speeds for the preset noise database
The noise data answered.
The present invention solves third technical solution used by its technical problem:
A kind of automobile active noise reducing device, comprising:
At least one processor；
At least one processor, for storing at least one program；
When at least one described program is executed by least one described processor, so that at least one described processor is realized
A kind of automobile active denoising method.
The beneficial effects of the present invention are: the present invention in running car, acquires the realtime graphic on vehicle front road surface in advance,
And identify and obtain barrier existing for road surface ahead, to carry out ranging to barrier, obtain between automobile and barrier away from
From, and then can be calculated according to this distance with the real time running data of automobile and obtain automotive wheel and bar contact shock generation
The specific time of noise, and read accordingly according to the real time running data of the barrier and automobile from preset noise database
Noise data, to play the reverse phase noise of the noise data in bottom of car when judging that wheel and bar contact are hit
Signal, the noise reduction process are carried out in bottom of car, are directly offset automotive wheel and barrier and are collided generated make an uproar
Sound realizes noise reduction before noise enters automotive interior in advance, and preferable noise reduction effect may be implemented, and effectively realizes actively
Noise reduction.
Detailed description of the invention
Fig. 1 is the flow chart of automobile active denoising method of the invention；
Fig. 2 is the electronic block diagrams of automobile active noise reduction system of the invention；
Fig. 3 is the schematic illustration of the specific embodiment of automobile active noise reduction system of the invention；
Fig. 4 is the structural block diagram of automobile active noise reducing device of the invention.
Specific embodiment
Embodiment of the method
Referring to Fig.1, a kind of automobile active denoising method is present embodiments provided, comprising the following steps:
When running car, the realtime graphic on vehicle front road surface is acquired, and identifies and obtains obstacle existing for road surface ahead
Object；
Road surface ahead is obtained there are when barrier in identification, ranging is carried out to the barrier, measurement obtains automobile and obstacle
The distance between object；
After the real time running data for obtaining automobile, when calculating acquisition wheel and bar contact hit generate noise first
Between information, and read corresponding noise data from preset noise database；
According to the noise data of reading, corresponding reverse phase noise signal is generated；
According to first time information, when judging at wheels travel to barrier and being hit with bar contact, in automobile
Bottom plays the reverse phase noise signal.
In the present embodiment, by acquiring the realtime graphic on vehicle front road surface, identification obtains recessed present in road surface ahead
After the barrier of convex injustice, measurement obtains the distance between automobile and barrier, so as to further obtain the front-wheel of automobile
The distance between rear-wheel and barrier, thus calculate separately obtain they and bar contact hit generate noise it is specific when
Between, here, first time information generates the specific time of noise including front-wheel, rear-wheel and barrier impacts.It is obtained calculating
Vehicle front, rear-wheel be able to will read in advance making an uproar of prestoring according to the specific time with after the specific time of barrier impacts
Sound data carry out reverse phase, and when front-wheel, rear-wheel and barrier are hit, the reverse phase noise signal is played simultaneously, offsets and hits
The noise of generation.
Generally speaking, in the present solution, in running car, the realtime graphic on vehicle front road surface is acquired in advance, and is identified
Barrier existing for road surface ahead is obtained, to carry out ranging to barrier, obtains the distance between automobile and barrier, in turn
It can be calculated according to this distance with the real time running data of automobile and obtain automotive wheel and bar contact shock generation noise
The specific time, and corresponding noise number is read from preset noise database according to the real time running data of the barrier and automobile
According to, so that the reverse phase noise signal of the noise data is played in bottom of car when judging that wheel and bar contact are hit, it should
Noise reduction process is carried out in bottom of car, is directly offset automotive wheel and barrier and is collided generated noise, is making an uproar
Sound enters before automotive interior, realizes noise reduction in advance, and preferable noise reduction effect may be implemented, effectively realize active noise reduction.
It is further used as preferred embodiment, the real time running data of the automobile include at least speed, direction information
With brake information.By the speed of automobile, direction information and brake information, in conjunction with the distance between automobile and barrier, so that it may
The specific time that automotive wheel and bar contact are hit is obtained to calculate, is obtained ahead of time in vehicle traveling process to generate and make an uproar
The time of sound.
It is further used as preferred embodiment, the preset noise database is stored with automobile with different speeds warp
Cross noise data corresponding when different barriers.
Generated noise number when noise database passes through different barriers particular by acquisition automobile with different speeds
According to rear foundation.Such as acquire generated when automobile passes through deceleration strip with the different speed per hours such as 10 kms, 20 kms, 30 kms make an uproar
Sound data acquire generated noise number when low-lying by road surface with the different speed per hour such as 10 kms, 20 kms, the 30 kms place of automobile
According to etc..After generated noise data, noise number is established when the common impairments object by acquiring automobile in advance with different speeds
According to library, to carry out reverse phase noise reduction after noise data can be read directly during the actual travel of automobile.
It is further used as preferred embodiment, the step that corresponding noise data is read from preset noise database
Suddenly, it specifically includes:
According to the real time running data of automobile, the speed of automobile is obtained；
According to the barrier that speed and identification obtain, from preset noise database, read automobile with the speed
Speed of the difference less than the first preset threshold, the barrier when institute by with the barrier similarity being more than the second preset threshold
Corresponding noise data.
Here, the first preset threshold is preset for will correspond to vehicle in the real-time speed and noise database of automobile
Speed is associated, and the second preset threshold is preset is used for barrier existing for vehicle front road surface and noise database
Barrier be associated.For example, the first preset threshold is set as 0.5km/h, the second preset threshold is set as 95%, then is making an uproar
It is searched in sound database and obstacle existing for speed of the difference of the real-time speed of automobile less than 0.5km/h and vehicle front road surface
Noise data corresponding to barrier of the similarity of object greater than 95%, when as automobile by barrier existing for road surface ahead
The noise data that will be generated.
By the first preset threshold of setting and the second preset threshold, it can be improved in application process, read noise data
Probability, realize effective noise reduction.Moreover, carrying out noise data by specifically setting the first preset threshold and the second preset threshold
Matching, read, the velocity contrast subtle without each, barrier difference consideration establish corresponding noise data, reduce
The workload of noise database establishment process.
It is further used as preferred embodiment, it is described in the step of bottom of car plays the reverse phase noise signal, it is right
The reverse phase noise signal plays after amplifying.
It is further used as preferred embodiment, the step that corresponding noise data is read from preset noise database
In rapid, when corresponding noise data is not present in preset noise database, following steps are executed:
When automobile passes through barrier, acquisition wheel and bar contact hit the noise data generated, and automobile is worked as
The barrier that preceding speed and identification obtain is with the noise data associated storage into preset noise database.
When corresponding noise data can not be read, then corresponding active noise reduction step is no longer executed, but in automobile
It when by barrier, acquires wheel and bar contact hits the noise data generated, by barrier, automobile current vehicle speed and be somebody's turn to do
Noise data associated storage updates noise database, so that noise data can be read directly when encountering kindred circumstances next time
Carry out active noise reduction.
System embodiment
Referring to Fig. 2, a kind of automobile active noise reduction system, the automobile active noise reduction system includes image capture module, figure
As processing module, CPU module, range finder module, memory module, loudspeaker module and it is used to be the automobile active noise reduction system
The power management module of power supply；
The output end of described image acquisition module is connected by image processing module and the first input end of CPU module, institute
The second input terminal for stating range finder module and CPU module connects, and described image processing module and CPU module connect with memory module
It connects, the output end of the CPU module and the input terminal of loudspeaker module connect；
Described image acquisition module is set to automotive front end, for acquiring the realtime graphic on vehicle front road surface；
Described image processing module, the realtime graphic for being acquired according to image capture module, identification obtain vehicle front
Barrier existing for road surface；
The range finder module is set to automotive front end, for measuring the barrier for obtaining automobile and image processing module identification acquisition
Hinder the distance between object；
The memory module, for storing preset noise database；
The CPU module is used for: after the real time running data for obtaining automobile, being calculated and is obtained wheel and bar contact shock
The first time information of noise is generated, and reads corresponding noise data from preset noise database；According to the noise of reading
Data generate corresponding reverse phase noise signal；According to first time information, judging at wheels travel to barrier and and obstacle
When object contact impact, sends the reverse phase noise signal at loudspeaker module and play；
The loudspeaker module is set to bottom of car, and the reverse phase noise signal for sending CPU module is converted into sound
It is played out after sound signal.
Illustrating the principle of this system in Fig. 3, in Fig. 3, appended drawing reference 1 indicates barrier, and appended drawing reference 2 indicates automobile,
Appended drawing reference 3 indicates image capture module, and appended drawing reference 4 indicates range finder module, and appended drawing reference 5 indicates loudspeaker module.It will figure
As acquisition module 3 and range finder module 4 are mounted on the front end of automobile 2, image capture module 3 can acquire 2 road surface ahead of automobile
Realtime graphic, range finder module 4, which can measure, obtains the distance between automobile 2 and barrier 1, so that this system can calculate acquisition
The distance between wheel and barrier 1, and then calculate the specific time that wheel and barrier 1 are hit.
It is similar with the description of preceding method embodiment, this system can automobile 2 when driving, acquire the front of automobile 2 in advance
The realtime graphic on road surface, and identify and obtain barrier 1 existing for road surface ahead, to carry out ranging to barrier 1, obtain automobile
The distance between 2 and barrier 1, and then can be calculated according to this distance with the real time running data of automobile 2 and obtain 2 wheel of automobile
The specific time of noise is generated with 1 contact impact of barrier, and according to the real time running data of the barrier 1 and automobile 2 from pre-
If noise database read corresponding noise data, thus when judge wheel with 1 contact impact of barrier, at 2 bottom of automobile
Portion plays the reverse phase noise signal of the noise data, which carried out in 2 bottom of automobile, directly counteracting wheel and barrier
Hinder the generated noise that collides of object 1 to realize noise reduction in advance before noise enters 2 inside of automobile, may be implemented preferable
Noise reduction effect effectively realizes active noise reduction.
It is further used as preferred embodiment, the automobile active noise reduction system further includes power amplifier module, the CPU mould
The output end of block is connected by the input terminal of power amplifier module and loudspeaker module.Power amplifier module is used to amplify reverse phase noise signal,
Push loudspeaker module sounding.
It is further used as preferred embodiment, the CAN bus of the third input terminal connection automobile 2 of the CPU module is used
Speed, direction information and brake are included at least in the real time running data of the real time running data for obtaining automobile 2, the automobile 2
Information.
It is further used as preferred embodiment, the preset noise database is stored with automobile 2 with different speeds
Corresponding noise data when by different barriers 1.
A kind of automobile provided by embodiment of the present invention method can be performed in a kind of automobile active noise reduction system of the present embodiment
Active denoising method, any combination implementation steps of executing method embodiment have the corresponding function of this method and beneficial to effect
Fruit.
Installation practice
Referring to Fig. 4, a kind of automobile active noise reducing device, comprising:
At least one processor 100；
At least one processor 200, for storing at least one program；
When at least one described program is executed by least one described processor 100, so that at least one described processor
100 realize a kind of automobile active denoising method.
A kind of automobile provided by embodiment of the present invention method can be performed in a kind of automobile active noise reducing device of the present embodiment
Active denoising method, any combination implementation steps of executing method embodiment have the corresponding function of this method and beneficial to effect
Fruit.
It is to be illustrated to preferable implementation of the invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (10)
1. a kind of automobile active denoising method, which comprises the following steps:
When running car, the realtime graphic on vehicle front road surface is acquired, and identifies and obtains barrier existing for road surface ahead；
Obtain road surface ahead there are when barrier in identification, ranging carried out to the barrier, measurement obtain automobile and barrier it
Between distance；
After the real time running data for obtaining automobile, calculating obtains wheel and bar contact hits the first time letter for generating noise
Breath, and corresponding noise data is read from preset noise database；
According to the noise data of reading, corresponding reverse phase noise signal is generated；
According to first time information, when judging at wheels travel to barrier and being hit with bar contact, in bottom of car
Play the reverse phase noise signal.
2. a kind of automobile active denoising method according to claim 1, which is characterized in that the real time running number of the automobile
According to including at least speed, direction information and brake information.
3. a kind of automobile active denoising method according to claim 1, which is characterized in that the preset noise database
It is stored with automobile noise data corresponding when with different speeds by different barriers.
4. a kind of automobile active denoising method according to claim 3, which is characterized in that described from preset noise data
The step of corresponding noise data, is read in library, specifically includes:
According to the real time running data of automobile, the speed of automobile is obtained；
Automobile is read with the difference with the speed from preset noise database according to the barrier that speed and identification obtain
Be worth less than the speed of the first preset threshold, by with the barrier similarity be more than the second preset threshold barrier when it is corresponding
Noise data.
5. a kind of automobile active denoising method according to claim 4, which is characterized in that described from preset noise data
Library read corresponding noise data the step of in, when preset noise database be not present corresponding noise data when, execute with
Lower step:
When automobile passes through barrier, acquisition wheel and bar contact hit the noise data generated, and automobile is worked as front truck
The barrier that speed and identification obtain is with the noise data associated storage into preset noise database.
6. a kind of automobile active noise reduction system, which is characterized in that the automobile active noise reduction system includes image capture module, figure
As processing module, CPU module, range finder module, memory module, loudspeaker module and it is used to be the automobile active noise reduction system
The power management module of power supply；
The output end of described image acquisition module is connected by image processing module and the first input end of CPU module, the survey
It is connected away from the second input terminal of module and CPU module, described image processing module and CPU module are connect with memory module, institute
The input terminal of the output end and loudspeaker module of stating CPU module connects；
Described image acquisition module is set to automotive front end, for acquiring the realtime graphic on vehicle front road surface；
Described image processing module, the realtime graphic for being acquired according to image capture module, identification obtain vehicle front road surface
Existing barrier；
The range finder module, for measuring the distance between the barrier for obtaining automobile and image processing module identification acquisition；
The memory module, for storing preset noise database；
The CPU module is used for: after the real time running data for obtaining automobile, being calculated and is obtained wheel and bar contact shock generation
The first time information of noise, and corresponding noise data is read from preset noise database；According to the noise data of reading,
Generate corresponding reverse phase noise signal；According to first time information, judging to connect at wheels travel to barrier and with barrier
When touching is hit, sends the reverse phase noise signal at loudspeaker module and play；
The loudspeaker module is set to bottom of car, and the reverse phase noise signal for sending CPU module is converted into sound letter
It is played out after number.
7. a kind of automobile active noise reduction system according to claim 6, which is characterized in that the automobile active noise reduction system
It further include power amplifier module, the output end of the CPU module is connected by the input terminal of power amplifier module and loudspeaker module.
8. a kind of automobile active noise reduction system according to claim 6, which is characterized in that the third of the CPU module is defeated
Enter the CAN bus of end connection automobile, for obtaining the real time running data of automobile, the real time running data of the automobile are at least wrapped
Include speed, direction information and brake information.
9. a kind of automobile active noise reduction system according to claim 6, which is characterized in that the preset noise database
It is stored with automobile noise data corresponding when with different speeds by different barriers.
10. a kind of automobile active noise reducing device characterized by comprising
At least one processor；
At least one processor, for storing at least one program；
When at least one described program is executed by least one described processor, so that at least one described processor is realized as weighed
Benefit requires a kind of described in any item automobile active denoising methods of 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810767548.7A CN109065014A (en) | 2018-07-13 | 2018-07-13 | A kind of automobile active denoising method, system and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810767548.7A CN109065014A (en) | 2018-07-13 | 2018-07-13 | A kind of automobile active denoising method, system and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109065014A true CN109065014A (en) | 2018-12-21 |
Family
ID=64816313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810767548.7A Pending CN109065014A (en) | 2018-07-13 | 2018-07-13 | A kind of automobile active denoising method, system and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109065014A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110223669A (en) * | 2019-07-01 | 2019-09-10 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Processing method, the device and system of car noise |
| CN110310618A (en) * | 2019-06-05 | 2019-10-08 | 广州小鹏汽车科技有限公司 | Processing method, processing unit and the vehicle of vehicle running environment sound |
| CN111462723A (en) * | 2020-03-31 | 2020-07-28 | 上海联影医疗科技有限公司 | Active noise reduction method and device |
| CN111956398A (en) * | 2020-07-13 | 2020-11-20 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Vehicle collision hearing protection method, vehicle and equipment |
| CN114255733A (en) * | 2021-12-21 | 2022-03-29 | 中国空气动力研究与发展中心低速空气动力研究所 | Self-noise masking system and flight equipment |
| CN114694625A (en) * | 2020-12-29 | 2022-07-01 | 宝能汽车集团有限公司 | Noise reduction method for vehicle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07152385A (en) * | 1993-11-26 | 1995-06-16 | Nippon Soken Inc | Noise controller |
| JPH08106293A (en) * | 1994-10-05 | 1996-04-23 | Nippondenso Co Ltd | Active noise elimination system |
| JPH10169700A (en) * | 1996-12-10 | 1998-06-23 | Honda Motor Co Ltd | Active vibration suppressing device |
| DE20000581U1 (en) * | 2000-01-14 | 2000-08-24 | Gauermann Joerg | Anti-tumor system |
| JP2008062804A (en) * | 2006-09-07 | 2008-03-21 | Honda Motor Co Ltd | Active noise control device |
| US20120070012A1 (en) * | 2010-09-20 | 2012-03-22 | Hitachi, Ltd | Noise reduction system for an electrically poered automotive vehicle |
| CN106373563A (en) * | 2015-07-22 | 2017-02-01 | 现代自动车株式会社 | Vehicle and control method thereof |
| CN107464552A (en) * | 2017-08-24 | 2017-12-12 | 徐银海 | A kind of distributed locomotive active noise reduction system and method |
| WO2018099765A1 (en) * | 2016-12-02 | 2018-06-07 | Jaguar Land Rover Limited | Apparatus and method for noise cancellation |
-
2018
- 2018-07-13 CN CN201810767548.7A patent/CN109065014A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07152385A (en) * | 1993-11-26 | 1995-06-16 | Nippon Soken Inc | Noise controller |
| JPH08106293A (en) * | 1994-10-05 | 1996-04-23 | Nippondenso Co Ltd | Active noise elimination system |
| JPH10169700A (en) * | 1996-12-10 | 1998-06-23 | Honda Motor Co Ltd | Active vibration suppressing device |
| DE20000581U1 (en) * | 2000-01-14 | 2000-08-24 | Gauermann Joerg | Anti-tumor system |
| JP2008062804A (en) * | 2006-09-07 | 2008-03-21 | Honda Motor Co Ltd | Active noise control device |
| US20120070012A1 (en) * | 2010-09-20 | 2012-03-22 | Hitachi, Ltd | Noise reduction system for an electrically poered automotive vehicle |
| CN106373563A (en) * | 2015-07-22 | 2017-02-01 | 现代自动车株式会社 | Vehicle and control method thereof |
| WO2018099765A1 (en) * | 2016-12-02 | 2018-06-07 | Jaguar Land Rover Limited | Apparatus and method for noise cancellation |
| CN107464552A (en) * | 2017-08-24 | 2017-12-12 | 徐银海 | A kind of distributed locomotive active noise reduction system and method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110310618A (en) * | 2019-06-05 | 2019-10-08 | 广州小鹏汽车科技有限公司 | Processing method, processing unit and the vehicle of vehicle running environment sound |
| CN110310618B (en) * | 2019-06-05 | 2021-09-03 | 广州小鹏汽车科技有限公司 | Vehicle running environment sound processing method and device and vehicle |
| CN110223669A (en) * | 2019-07-01 | 2019-09-10 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Processing method, the device and system of car noise |
| CN111462723A (en) * | 2020-03-31 | 2020-07-28 | 上海联影医疗科技有限公司 | Active noise reduction method and device |
| CN111462723B (en) * | 2020-03-31 | 2023-09-26 | 上海联影医疗科技股份有限公司 | Active noise reduction method and device |
| CN111956398A (en) * | 2020-07-13 | 2020-11-20 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Vehicle collision hearing protection method, vehicle and equipment |
| CN114694625A (en) * | 2020-12-29 | 2022-07-01 | 宝能汽车集团有限公司 | Noise reduction method for vehicle |
| CN114255733A (en) * | 2021-12-21 | 2022-03-29 | 中国空气动力研究与发展中心低速空气动力研究所 | Self-noise masking system and flight equipment |
| CN114255733B (en) * | 2021-12-21 | 2023-05-23 | 中国空气动力研究与发展中心低速空气动力研究所 | Self-noise masking system and flight device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109065014A (en) | A kind of automobile active denoising method, system and device | |
| US20200191565A1 (en) | Distance measuring device and method of controlling distance measuring device | |
| US8204678B2 (en) | Vehicle drive assist system | |
| US8710974B2 (en) | Sound producing apparatus for vehicle | |
| US10635933B2 (en) | Vision-based methods and systems for determining trailer presence | |
| US10676096B2 (en) | System and method for sensing road surface condition | |
| US11631326B2 (en) | Information providing system, server, onboard device, vehicle, storage medium, and information providing method | |
| JP2008526584A (en) | Offset detection method for pedestrian protection device | |
| CN102713988B (en) | Vehicle periphery monitoring device | |
| US11330202B2 (en) | Solid-state image sensor, imaging device, and method of controlling solid-state image sensor | |
| CN112074756A (en) | Method and device for operating an ultrasonic sensor of a vehicle | |
| CN109891262A (en) | Object detection device | |
| US20220317269A1 (en) | Signal processing device, signal processing method, and ranging module | |
| CN105867875A (en) | Front pedestrian target recognition based automobile horn volume self-adaption control system | |
| CN111261134A (en) | Noise reduction method and system for vehicle road noise | |
| CN113829994B (en) | Early warning method and device based on car external whistling, car and medium | |
| JP2018180641A (en) | Vehicle identification device | |
| WO2019123582A1 (en) | Object information generation device and object information generation program | |
| TWI798646B (en) | Warning device of vehicle and warning method thereof | |
| CN115704907A (en) | Object recognition device, object recognition method, and recording medium | |
| CN114241447A (en) | Real-time obstacle detection method based on vehicle-mounted equipment | |
| CN114475587A (en) | Risk assessment algorithm introducing target behaviors and collision probability | |
| CN203746233U (en) | Automobile tracking identification apparatus | |
| JP4316710B2 (en) | Outside monitoring device | |
| CN211653867U (en) | Monocular vision ADAS system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |