CN204143870U - For controlling the system of the noise level manufactured by the target device in automobile, automobile air purifier and the vehicles - Google Patents
For controlling the system of the noise level manufactured by the target device in automobile, automobile air purifier and the vehicles Download PDFInfo
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- CN204143870U CN204143870U CN201290000777.2U CN201290000777U CN204143870U CN 204143870 U CN204143870 U CN 204143870U CN 201290000777 U CN201290000777 U CN 201290000777U CN 204143870 U CN204143870 U CN 204143870U
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- noise level
- air purifier
- automobile
- noise
- level
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- Air-Conditioning For Vehicles (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The method of the noise level manufactured by a kind of equipment for controlling in automobile of the utility model relate generally to.The method comprises: the ambient noise level in detection (210,310) automobile; And control (230,240; 320,330,340) duty of the equipment in automobile thus the noise level predetermined value lower than ambient noise level that this equipment is produced.The system of the noise level of the utility model also manufactured by a kind of equipment for controlling in automobile of relate generally to.This system comprises: for the detector (120) of the ambient noise level in probe vehicle; And for the duty of opertaing device thus the controller (130) of the noise level predetermined value lower than ambient noise level making air purifier produce.Therefore, some annoying noises can effectively be sheltered.
Description
Technical field
The field of relate generally to vehicle electronics of the present invention, and particularly for controlling the system and method for the noise level manufactured by the equipment (such as air purifier) in automobile.
background technology
In order to improve the air quality in automobile cabin, air purifier can be adopted.Some air purifiers use impeller driven by the engine to suck or discharge air, and this air is forced to and passes through filtrator.Thus, filter fine particle and/or chemical gas, and from wherein producing cleaned air.
In the air purifier using vane motor, impeller is less, and the rotating speed being used for producing needed for same airflow is higher.Due to space constraint typical in automobile, less impeller is preferred, simultaneously still expects significant air-flow, and this may cause the annoying noise level that caused by impeller and/or engine and therefore affect the mood of driver and passenger.Except air purifier, when air purifier works, automobile also may adopt the miscellaneous equipment producing undesirable noise.
Therefore, the undesirable noise needing the target device limiting or eliminate such as air purifier and so on to produce.
Summary of the invention
Due to shortcoming mentioned above, the present invention realizes a kind of like this mechanism: the noise level produced by the target device (such as air purifier) in automobile is tuned to a noise pitch lower than the neighbourhood noise in automobile, thus makes the target noise from air purifier substantially be sheltered by neighbourhood noise or cover.
According to some embodiments of the present invention, provide the method for the noise level manufactured by a kind of target device for controlling in automobile, the method comprises the following steps: the ambient noise level in probe vehicle; And the duty of target device in control automobile, thus the noise level that this target device is produced predetermined value lower than ambient noise level.
In some embodiments of the invention, target device is the air purifier comprising impeller; And predetermined value is about 17dB, and this value can be greater than 17dB certainly.Especially, in these embodiments, the step controlling the duty of air purifier comprises the rotating speed of the impeller controlling air purifier.And the step more particularly, controlling the rotating speed of the impeller of air purifier comprises: rotating speed i) reducing impeller when the ambient noise level detected reduces; And ii) rotating speed of increase impeller when the ambient noise level detected increases.
Wherein in certain embodiments, when the ambient noise level in automobile increases, through time delay, the rotating speed of the impeller of air purifier is increased to higher level.
According to some embodiments of the present invention, provide the system of the noise level manufactured by a kind of target device for controlling in automobile, it comprises: for the detector of the ambient noise level in probe vehicle; And for the duty of control objectives equipment thus the controller of the noise level predetermined value lower than ambient noise level making air purifier produce.
In certain embodiments, predetermined value is about 17dB and target device is the air purifier comprising impeller.In these embodiments, especially, controller is configured to the rotating speed of the impeller controlling air purifier.More particularly, controller is configured to: the rotating speed reducing impeller when the ambient noise level detected reduces; And the rotating speed of impeller is increased when the ambient noise level detected increases.
In some embodiments of this system, detector is oriented to wide equipment substantially.Especially, for air purifier, detector away from the rotary engine of air purifier, such as away from its impeller and/or engine.
According to a further aspect in the invention, provide a kind of automobile air purifier, it comprises the system for controlling the noise level manufactured by the target device in automobile as limited above.
According to a further aspect in the invention, provide a kind of vehicles, it is equipped with automobile air purifier as described above, or is equipped with as described above for controlling the system of the noise level manufactured by the target device in automobile.
According to a further aspect in the invention, provide a kind of computer program, it is performed by processor or controller with the method implemented as previously discussed.
By the present invention, noise level (particularly undesirable noise level) is maintained at low-level and is sheltered by the ambient noise level that may can not avoid completely, and this is because herein is provided more pleasant driving-situation in automobile.
These and other aspect of the present invention will be apparent from (multiple) described below embodiment, and set forth with reference to this (multiple) embodiment.
Accompanying drawing explanation
Only exemplarily, now with reference to accompanying schematic figure, embodiments of the invention are described, the part that reference marker instruction corresponding is in the accompanying drawings corresponding, and in the accompanying drawings:
Fig. 1 illustrates the block diagram according to the air purifier of some embodiments of the present invention and the structure for the system of the duty of the target device that controls such as air purifier and so on;
Fig. 2 illustrates the process flow diagram of the process of the control air purifier of some embodiments according to control procedure;
Fig. 3 illustrates the process flow diagram of the process of the control air purifier of some embodiments according to control procedure.
Embodiment
Usually, the present invention is based on people's ear and there is this experience of auditory masking effect.Such as, when the noise pitch of ambient noise level all according to appointment 17dB higher than target noise level, target noise level will not easily be discovered substantially, in other words, under it will be hidden in neighbourhood noise.
When car travel on road time, a lot of neighbourhood noise will be there is, such as with the constant speed drive of 70,000 ms/h on concrete road period, described neighbourhood noise has the level of 66 ~ 74dB.For the driver in automobile or passenger, neighbourhood noise source can greatly, comprises such as tyre noise, engine noise, air-conditioning ventilating noise, music broadcast noise, the BSR noise (buzz, squeak, snapping sound) in compartment, cabin, voice, outdoor noise etc. during travelling.
For the object element of such as air purifier or other electronic equipment and so on, also the parts (such as internal impeller or engine) from it are produced undesirable noise.The target noise produced by the equipment of such as impeller and so on is normally annoying, and wishes to be sheltered or cover.
Therefore, some embodiments of the present invention achieve a kind of mechanism, thus make by using the neighbourhood noise of automobile substantially to shelter or coverage goal noise (such as, from the noise of the target device of such as air purifier and so on).
Fig. 1 illustrates the structured flowchart of the system 110 of the duty for controlling the air purifier in automobile according to some embodiments.System 110 comprises noise detector 120(such as, acoustic sensor) and control device 130(is such as, micro controller unit MCU).The neighbourhood noise that driver in noise detector 120 energy probe vehicle and/or (several) passenger perceive, and one or more signals of indicative for environments noise level can be produced.Controller 130 is coupled with noise detector 120 to receive (multiple) signal, and generates equipment with air purifier 140(or other noise) be coupled to control its duty (such as, its volume).In addition, controller 130 can comprise: for speech simulation signal being converted to the A/D converter (not shown) of digital signal, and for derived sound level (such as, by carrying out integration to digital noise signal in traveling time window) integral unit, its for technician's easy understand and do not need to be described in further detail.In certain embodiments, A/D converter can integrate with noise detector 120.
In certain embodiments, detector 120 is oriented to relatively away from air purifier 140, especially away from other noise generating unit in impeller 150, rotary engine (not shown) or air purifier 140 or other noise generating unit of depending on the circumstances.
Controller 130 can regulate the operation of air purifier 140 based on the ambient noise level detected, such as, and the such as rotating speed of impeller 150.Due to the principle of auditory masking, the noise from air purifier 150 can be tuned to the noise pitch of such as all according to appointment 17dB lower than neighbourhood noise.In certain embodiments, noise pitch can be greater than 17dB.
Usually, target noise level (such as, being derived from the noise of air purifier or other noise generating unit) depends on the rotating speed of (multiple) impeller substantially, illustrated by following formula:
Target noise level=rotating speed of target * K (1)
Wherein K is variable or constant coefficient.Equation (1) can also be expressed as:
Rotating speed of target=target noise level/K (2).
In certain embodiments, (multiple) relation between the rotating speed of target of air purifier or other noise generation equipment and target noise level (such as, the value of COEFFICIENT K) can be predetermined and/or prestore and be stored in controller 130 or be coupled in the memory cell (such as, ROM) of controller 130.
Therefore, target noise level is controlled so as to, in some embodiments of≤ambient noise level noise pitch (such as, 17dB), can derive wherein:
Rotating speed of target≤(ambient noise level noise pitch)/K (3).
Therefore, controller 130 can be configured to according to above formula (3) by using the ambient noise level that detector 120 detects and the rotating speed of target controlling air purifier for the pre-stored value of K and the noise pitch value (such as 17dB) of pre-stored.
Fig. 2 illustrates the process flow diagram of the process of the control air purifier (or other noise generates equipment) realized by above-mentioned controller 130 according to some embodiments of the present invention:
In step 210, after the operation start of air purifier in the car, detector 120(such as, acoustic sensor) start acquisition environment noise level and produce the respective signal of indicative for environments noise level.
In a step 220, by the sampling thief that can be integrated in controller 130, detector 120 or other single component and A/D converter signal sampled and convert it to digital signal from simulating signal.In interchangeable or additional embodiment, controller can comprise analog signal processing circuit for the control signal producing control noises generating unit 140.
In step 230, controller 130(such as, processor) determine the rotating speed of target value (or generating other value that equipment 140 is associated with noise) of the impeller 150 of air purifier 140 based on the numeral and/or simulating signal that represent ambient noise level.Determine that rotating speed of target value can comprise the value determined ambient noise level and use noise pitch and K, wherein determine ambient noise level can comprise in a step 220 to sample and the signal changed carries out the value that integration and formation represent ambient noise level.
In addition, controller 130 can determine whether to need to change current rotating speed by comparison object rotating speed and current rotating speed.Current rotating speed can obtain by sensor and/or from memory cell.Controller 130 can be determined in target noise level higher than increasing rpm level during current noise level, reducing rpm level and/or maintain current rpm level when target noise level equals or be equivalent to current noise level in target noise level lower than during current noise level.In certain embodiments, when controller 130 is determined to reduce rpm level, it can send instruction to air purifier immediately or send after a delay.When controller 130 is determined to increase rpm level, it can send instruction immediately or after a delay.
In step 240, air purifier 140 changes according to the instruction carrying out self-controller or maintains current rpm level.Technician's easy understand, the instruction carrying out self-controller 130 can be construed as the actuated signal of the rotary engine for air purifier.In certain embodiments, the instruction carrying out self-controller 130 can comprise pulse-length modulation (PWM) signal.
The rotating speed of the impeller of air purifier can be divided into multiple level.In certain embodiments, speed is divided into three levels: SPD_H, SPD_M, SPD_L, and each corresponds to a predetermined rotating speed.Usually, the rpm level of any number is all possible with adoptable.Fig. 3 illustrates the process flow diagram generating the process of equipment 140 according to the control noises of some embodiments of control procedure.
In the step 310, after the initialization of air purifier, the state of equipment enters default level.Such as, the rotating speed of air purifier enters the default level of such as by-level SPD_M.
In step 320, controller 130 from detector 120 Received signal strength, and by determining rotating speed of target level and itself and current rpm level compared to determine whether to need the current rpm level of air purifier is risen to higher level or drops to reduced levels or maintain present level.
In certain embodiments, by determining whether that reaching threshold condition is made at the decision changed between SPD_H, SPD_M and SPD_L state.When three states, two threshold values (such as, THRES_LM and THRES_HM) can be provided.Usually, if there is n number object state, then system can have n-1 threshold value.Such as, if system is in SPD_L state, then controller can compare from the measurement noises level of detector 120 and THRES_LM value (threshold value such as, between " L " and " M " state).If measurement noises level is less than THRES_LM value, then the state of equipment 140 does not change.But if measurement noises level is more than or equal to/is greater than THRES_LM, then controller 130 can signal to be converted to SPD_M state to equipment 140.For being upwards converted to higher state or downwards can carrying out analog for transition stage.
In some cases, measurement noises level may only change around one of them threshold value continually.In certain embodiments, delay voltage factor values (DELTA) can be used to avoid this frequent transitions.Such as, change and be at least in threshold value between two states (such as by only occurring in measurement noises level, THRES_LM between state SPD_L and SPD_M) more than or following DELTA time, instead of determine ambient sound levels be in more than this threshold value or below time change state immediately.Such as, if system is in SPD_L state, then controller can compare from the measurement noises level of detector 120 and THRES_LM+DELTA.If measurement noises level is more than or equal to/is greater than THRES_LM+DELTA, then controller 130 can signal to be converted to SPD_M state to equipment 140.In certain embodiments, DELTA value any combination that only can be used in all transformations upwards, to be only used in both transformations in all transformations downwards, up and down or to change.In certain embodiments, DELTA value can be different between transformation up and down.
Next, if controller 130 determines that present speed level needs to rise to higher level in step 320, then controller 130 sends instruction (as Suo Shi step 321) at the rear of optional time delay to air purifier, and then makes air purifier change its rotating speed in a step 330.Meanwhile, if controller determines that velocity level needs to reduce in step 320, then controller sends instruction immediately and then makes air purifier decline rpm level in step 340.After rpm level changes, controller 130 turns back to step 320 and continues this process.In certain embodiments, the transformation between the state at step 330 or 340 places can occur immediately or can comparatively mild (such as, via tuning pwm signal instead of flip-flop in fine (granular) step).
Meanwhile, if controller determines that present speed level needs to maintain in step 320, then controller 130 keeps current rpm level and turns back to step 320.Usually, the signal value of the noisiness that illustrated in Fig. 2-3 process can be generated by control effect parts 150 by any noise generation equipment 140 adopts.Therefore, the annoying noise of some the electric equipment in automobile can advantageously be reduced and hide by neighbourhood noise.
Although describe in detail in accompanying drawing and above description and describe the present invention, such explanation and describing should be considered to be illustrative or exemplary and nonrestrictive.The invention is not restricted to the disclosed embodiments.Those skilled in the art, when putting into practice invention required for protection, is appreciated that by research accompanying drawing, present disclosure and claims and is realized other modification of disclosed embodiment.Such as, the invention is not restricted to realize in air purifier, but may be used for other electronic equipment producing noise in the car, audio frequency and video multimedia system etc. in such as air-conditioning, A/C pressure fan, car.In addition, processor can be the general purpose microprocessor with software programming, or with the form of hardware, firmware.
In the claims, verb " comprises " and the existence of other element or step is not got rid of in paradigmatic use, and the article "a" or "an" before element does not get rid of the existence of multiple such element.The simple fact quoting from some measure in mutually different dependent claims does not indicate the combination of these measures not to be advantageously used.Any reference marker in claim should not be interpreted as limited field.
Claims (6)
1., for controlling a system for the noise level manufactured by the target device in automobile, comprising:
Ambient noise detection device (120); With
Be coupled to described target device and be coupled to the controller (130) of described ambient noise detection device (120), described controller (130) is configured to the duty controlling described target device, thus the noise level that described target device is produced predetermined value at least lower than ambient noise level
Wherein, described target device is the air purifier comprising impeller (150); And
Wherein, described predetermined value is at least 17dB.
2. the system as claimed in claim 1, wherein said controller (130) is configured to:
Control the rotating speed of the impeller (150) of described air purifier (140).
3. system as claimed in claim 2, wherein said controller (130) is configured to further:
The rotating speed of impeller is reduced when the ambient noise level detected reduces; And
The rotating speed of impeller is increased when the ambient noise level detected increases.
4. the system as claimed in claim 1, wherein
Described ambient noise detection device (120) is oriented to substantially away from rotary engine and/or the impeller of described air purifier (140).
5. an automobile air purifier, comprises the system as described in any one in front claim 1-4.
6. vehicles, it is equipped with automobile air purifier as claimed in claim 5 or the system as described in any one in front claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201290000777.2U CN204143870U (en) | 2011-08-26 | 2012-08-23 | For controlling the system of the noise level manufactured by the target device in automobile, automobile air purifier and the vehicles |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011001427 | 2011-08-26 | ||
| CNPCT/CN2011/001427 | 2011-08-26 | ||
| CN2012000532 | 2012-04-18 | ||
| CNPCT/CN2012/000532 | 2012-04-18 | ||
| PCT/IB2012/054267 WO2013030729A2 (en) | 2011-08-26 | 2012-08-23 | Method and system for controlling noise level in an automotive electronic device |
| CN201290000777.2U CN204143870U (en) | 2011-08-26 | 2012-08-23 | For controlling the system of the noise level manufactured by the target device in automobile, automobile air purifier and the vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143870U true CN204143870U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201290000777.2U Expired - Lifetime CN204143870U (en) | 2011-08-26 | 2012-08-23 | For controlling the system of the noise level manufactured by the target device in automobile, automobile air purifier and the vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204143870U (en) |
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2012
- 2012-08-23 CN CN201290000777.2U patent/CN204143870U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180328 Address after: Holland Schiphol Patentee after: KONINKLIJKE PHILIPS NV Address before: Holland Ian Deho Finn Patentee before: KONINKLIJKE PHILIPS N.V. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150204 |
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| CX01 | Expiry of patent term |