CN106878862A - A kind of inter-vehicle information system method for controlling volume and device - Google Patents
A kind of inter-vehicle information system method for controlling volume and device Download PDFInfo
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- CN106878862A CN106878862A CN201611250380.XA CN201611250380A CN106878862A CN 106878862 A CN106878862 A CN 106878862A CN 201611250380 A CN201611250380 A CN 201611250380A CN 106878862 A CN106878862 A CN 106878862A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Control Of Amplification And Gain Control (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The present invention provides inter-vehicle information system method for controlling volume and device, and method includes：S1, will need adjust volume each broadcast source and spacing be associated；S2, the nearest spacing for obtaining this car and front truck, if the nearest spacing is more than the first preset security spacing, into step S6, otherwise judge that the nearest spacing belongs to the grade of preset security spacing；S3, acquisition current volume value, and save as initial volume value；S4, judged according to the volume contingency table currently playing source volume value whether need adjustment, be then enter next step, otherwise into step S6；S5, according to default volume distance relation formula adjust current volume value；S6, the current environment inside car noise figure of acquisition, if the initial volume value is less than the environment inside car noise figure, current volume value are adjusted according to default volume noise relationship formula, otherwise keep current volume value constant.The volume value that the present invention realizes inter-vehicle information system actively adapts to the change of surrounding enviroment.
Description
Technical field
The present invention relates to inter-vehicle information system control technology field, more particularly to a kind of inter-vehicle information system volume controlling party
Method and device.
Background technology
With the gradually popularization of automobile, inter-vehicle information system is increasingly becoming the standard configuration of automobile, greatly aspect people
Trip.Research display, carrying out hand-free call by inter-vehicle information system can more attract the attention of driver than being chatted with copilot
Power, therefore the call behavior of driver may cause rear-end collision when spacing is excessively near；Other similar potential safety hazards are also deposited often
.One of its reason is exactly that current inter-vehicle information system does not have perception to surrounding enviroment, causes inter-vehicle information system
Volume can not actively change, it is necessary to driver manually adjusts, therefore has greatly interfered with the attention of driver with surrounding enviroment
Power, so as to cause traffic accident to occur.
Therefore, prior art is further improved.
The content of the invention
The present invention provides a kind of inter-vehicle information system method for controlling volume and device, it is intended to solve of the prior art lacking
Fall into, realize that the volume value of inter-vehicle information system actively adapts to the change of surrounding enviroment.
To reach above-mentioned purpose, the technical solution used in the present invention is：
One aspect of the present invention provides a kind of inter-vehicle information system method for controlling volume, including：
S1, will need adjust volume each broadcast source and spacing be associated；
S2, the nearest spacing for obtaining this car and front truck, if the nearest spacing is more than the first preset security spacing, enter
Step S6, otherwise judges that the nearest spacing belongs to the grade of preset security spacing；
S3, acquisition current volume value, and save as initial volume value；
S4, judged according to the volume contingency table currently playing source volume value whether need adjustment, be then enter next step,
Otherwise enter step S6；
S5, according to default volume distance relation formula adjust current volume value；
S6, the current environment inside car noise figure of acquisition, if the initial volume value is less than the environment inside car noise figure, press
Current volume value is adjusted according to default volume noise relationship formula, otherwise keeps current volume value constant.
Further, also include after step s 5, before step S6：
Whether S51, the monitoring nearest spacing return to the first preset security spacing grade, are then that current volume value is extensive
It is multiple to arrive described.
Further, also include after the step S6：
Whether S7, detecting system are that cold boot starts or reset startup, are that current volume is set into minimum start
Volume value, and preservation volume value before shutdown is obtained, if preserving volume value before the shutdown less than or equal to the minimum start sound
Value, then be set to the minimum opening sound volume value, otherwise into next step by current volume value；
S8, volume is returned to by the shutdown from the minimum opening sound volume value with default speedup relational expression before preserve volume
Value, and return to step S2.
Specifically, the default volume distance relation formula is：
Lc=[Lr/Lmax] * Lr* (Smin/S1)
Wherein, Lr represents initial volume value, and unit is decibel；Lmax represents system max volume value, and unit is decibel；
Smin represents the nearest spacing of this car and front truck；S1 represents the first preset security spacing.
Specifically, the default volume distance relation formula is：
Lc=min { N+Lr/2, Lmax }.
N represents current environment inside car noise figure, and Lr represents initial volume value, and Lmax represents system max volume value, min { }
Expression takes wherein smaller.
Specifically, the default speedup relational expression is：
La=[(Ls-Lmin)/Lmin] * Δs L
Wherein, La is the actual increase step-length of volume, and Δ L is that default volume increases step-length, Δ L=1~5dB.
Specifically, the Δ L=2dB.
Another aspect of the present invention provides a kind of inter-vehicle information system sound volume control device, including volume contingency table module, car
Away from acquisition module, spacing grade judge module, broadcast source acquisition module, ambient noise acquisition module, the first volume comparison module,
Initial volume acquisition module, initial volume preserving module, system sound volume module, Audio Control Module；
The volume contingency table module, each broadcast source for will need to adjust volume is associated with spacing；
The spacing acquisition module, the spacing for obtaining this car and front truck；
The spacing grade judge module, for judging that nearest spacing belongs to the grade of preset security spacing；
The broadcast source acquisition module, for obtaining the broadcasting source information being currently running；
The ambient noise acquisition module, for obtaining current environment inside car noise figure；
The first volume comparison module, for comparing current volume value and environment inside car noise figure；
The initial volume acquisition module, the initial volume value before volume is not adjusted for obtaining；
The initial volume preserving module, for preserving the initial volume value；
The system sound volume module, for preserving system max volume value, system minimal volume value, minimum opening sound volume
Value；
The Audio Control Module, for adjusting current volume according to preset relation formula.
Further, the inter-vehicle information system sound volume control device is also included for recovering the first of the initial volume value
Beginning volume recovery module.
Further, the inter-vehicle information system sound volume control device also includes open state detection module, shutdown volume
Preserving module, system sound volume module, the second volume comparison module；
Whether the open state detection module, be that cold boot starts or reset startup for detecting system；
The shutdown volume preserving module, for preserving volume value during shutdown；
The second volume comparison module, for entering with the minimum opening sound volume value to preserving volume value before the shutdown
Row compares.
The beneficial effects of the present invention are：The present invention is closed by each broadcast source that will need to adjust volume with spacing
Connection, obtains the nearest spacing of this car and front truck, and obtains the current application scenarios of inter-vehicle information system, and whether comprehensive descision needs
Current volume to inter-vehicle information system is adjusted, and the volume value for realizing inter-vehicle information system actively adapts to surrounding enviroment
Change, improves the notice of driver, reduces the probability of happening of traffic accident.
Brief description of the drawings
Fig. 1 is the method flow diagram of inter-vehicle information system volume control of the invention；
Fig. 2 is the structural representation of inter-vehicle information system volume control of the invention；
Fig. 3 is another structural representation of inter-vehicle information system volume control of the invention；
Fig. 4 is the another structural representation of inter-vehicle information system volume control of the invention.
Specific embodiment
Embodiments of the present invention are specifically illustrated below in conjunction with the accompanying drawings, and accompanying drawing is only for reference and explanation is used, and it is right not constitute
The limitation of scope of patent protection of the present invention.
As shown in figure 1, on the one hand embodiments of the invention provide a kind of inter-vehicle information system method for controlling volume, including：
Step 1, will need adjust volume each broadcast source and spacing be associated.
For example, by multimedia source (such as DVD, USB, SD broadcast source) and the first preset security spacing grade can be less than
The spacing of S1 (such as 2 meters) is associated；By multimedia source, navigation broadcast source and less than the second preset security spacing grade
The spacing of S2 (such as 1.5 meters) is associated；Multimedia source, navigation broadcast source, bluetooth broadcast source is pre- with less than the 3rd
If the spacing of safe distance between vehicles grade S3 (such as 1 meter) is associated；By that analogy.
Step 2, the nearest spacing Smin for obtaining this car and front truck, if the nearest spacing Smin is more than the first preset security
Spacing S1, then into step 6, otherwise judge that the nearest spacing Smin belongs to the grade of preset security spacing.
If for example, described nearest spacing Smin=1.9 meters, belonging to the first preset security spacing grade S1；If it is described most
Nearly Smin=1.3 meters of spacing, then belong to the second preset security spacing grade S2；If described nearest spacing Smin=0.8 meters, belonging to
In the second preset security spacing grade S3；By that analogy.
Step 3, acquisition current volume value Lc, and save as initial volume value Lr.
Step 4, judged according to the volume contingency table currently playing source volume value whether need adjustment, be then enter it is next
Step, otherwise into step 6.
Step 5, according to default volume distance relation formula adjustment current volume value Lc.
If for example, described nearest spacing Smin=1.9 meters, if currently playing source is navigation or bluetooth conversation, no
Change current volume value；If currently playing source is multimedia source, adjusted according to the default volume distance relation formula
Current volume value Lc.
In an enforceable example of the invention, the default volume distance relation formula is：
Lc=[Lr/Lmax] * Lr* (Smin/S1)
Wherein, Lr represents initial volume value, and unit is decibel；Lmax represents system max volume value, and unit is decibel；
Smin represents the nearest spacing of this car and front truck, can be represented on the basis of S1, such as S1/9, S1/2 etc.；S1 represents that first is pre-
If safe distance between vehicles.
Step 6, the current environment inside car noise figure N of acquisition, if the initial volume value Lr is less than the environment inside car noise
Value N, then adjust current volume value Lc according to default volume noise relationship formula, otherwise keeps current volume value constant.
In an enforceable example of the invention, the default volume distance relation formula is：
Lc=min { N+Lr/2, Lmax }.
N represents current environment inside car noise figure, and Lr represents initial volume value, and Lmax represents system max volume value, min { }
Expression takes wherein smaller.It is smaller that this formula represents that the volume after adjustment takes in N+Lc/2 and system maximum adjustable sound volume Lmax
Person, in order to avoid volume is excessive, damages loudspeaker, and cause noise pollution.
In another embodiment of invention, also include after step 5, before step 6：
Whether step 51, the monitoring nearest spacing Smin return to the first preset security spacing grade S1, then ought be
Preceding volume value returns to the Lr.
In another embodiment of invention, also include after the step 6：
Whether step 7, detecting system are that cold boot starts or reset startup, are that current volume is set into minimum opens
Machine volume value Lmin, and preservation volume value Ls before shutdown is obtained, if preserving volume value Ls before the shutdown less than or equal to described
Minimum opening sound volume value Lmin, then be set to the minimum opening sound volume value Lmin, otherwise into next step by current volume value.
Step 8, volume is returned to by the shutdown from the minimum opening sound volume value Lmin with default speedup relational expression before
Preserve volume value Ls, and return to step 2.
The default speedup relational expression can be configured according to actual needs, in an enforceable example of the invention,
The default speedup relational expression is：
La=[(Ls-Lmin)/Lmin] * Δs L
Wherein, La is the actual increase step-length of volume, and Δ L is that default volume increases step-length, Δ L may be configured as 1~5dB it
Between a certain numerical value, in the present embodiment, Δ L=2dB.
As shown in Fig. 2 another aspect of the present invention provides a kind of inter-vehicle information system sound volume control device, including volume association
Table module, spacing acquisition module, spacing grade judge module, broadcast source acquisition module, ambient noise acquisition module, the first volume
Comparison module, initial volume acquisition module, initial volume preserving module, system sound volume module, Audio Control Module；
The volume contingency table module, each broadcast source for will need to adjust volume is associated with spacing；
The spacing acquisition module, the spacing for obtaining this car and front truck；
The spacing grade judge module, for judging that nearest spacing belongs to the grade of preset security spacing；
The broadcast source acquisition module, for obtaining the broadcasting source information being currently running；
The ambient noise acquisition module, for obtaining current environment inside car noise figure；
The first volume comparison module, for comparing current volume value and environment inside car noise figure；
The initial volume acquisition module, the initial volume value before volume is not adjusted for obtaining；
The initial volume preserving module, for preserving the initial volume value；
The system sound volume module, for preserving system max volume value, system minimal volume value, minimum opening sound volume
Value；
The Audio Control Module, for adjusting current volume according to preset relation formula.
The course of work of inter-vehicle information system sound volume control device of the invention is：
First, user will need each broadcast source for adjusting volume to be associated with spacing by volume contingency table module.Example
Such as, by multimedia source (such as DVD, USB, SD broadcast source) and the first preset security spacing grade S1 (such as 2 can be less than
Rice) spacing be associated；By multimedia source, navigation broadcast source and less than the second preset security spacing grade S2 (for example
1.5 meters) spacing be associated；By multimedia source, navigation broadcast source, bluetooth broadcast source be less than the 3rd preset security car
Spacing away from grade S3 (such as 1 meter) is associated；By that analogy.
Then, spacing acquisition module obtains the nearest spacing Smin of this car and front truck, and is sent to spacing grade and judges mould
Block is judged, if the nearest spacing Smin is less than the first preset security spacing S1, initial volume acquisition module is obtained works as
Preceding volume value Lc, and be sent to initial volume preserving module and save as initial volume value Lr.Meanwhile, broadcast source acquisition module is obtained
The broadcasting source information being currently running, is sent to Audio Control Module, information in Audio Control Module combination volume contingency table module,
Judge whether to need to be adjusted current volume, be to adjust current volume value, specifically, according to following default volume distance
Relational expression is adjusted：
Lc=[Lr/Lmax] * Lr* (Smin/S1)
Wherein, Lr represents initial volume value, and unit is decibel；Lmax represents system max volume value, is stored in system sound
In amount module；Smin represents the nearest spacing of this car and front truck, can be represented on the basis of S1, such as S1/9, S1/2 etc.；S1 tables
Show the first preset security spacing.
Otherwise, the first volume comparison module receives the current environment inside car noise figure that ambient noise acquisition module is obtained
N, and be compared with the initial volume value, and comparative result is sent to Audio Control Module, the Audio Control Module
Processed according to the comparative result：If the initial volume value Lr is less than the environment inside car noise figure N, according to default
Volume noise relationship formula adjusts current volume value Lc, otherwise keeps current volume value constant.Specifically, according to following default volume
Noise relationship formula is adjusted：
Lc=min { N+Lr/2, Lmax }.
N represents current environment inside car noise figure, and Lr represents initial volume value, and Lmax represents system max volume value, preserves
In system sound volume module, min { } is represented and is taken wherein smaller.
As shown in figure 3, in another embodiment of the present invention, the inter-vehicle information system sound volume control device also includes
Initial volume recovery module for recovering the initial volume value.
After spacing acquisition module monitors the nearest spacing Smin returns to the first preset security spacing grade S1, then lead to
Know that current volume value is returned to the initial volume value Lr by initial volume recovery module.
As shown in figure 4, in another embodiment of the present invention, the inter-vehicle information system sound volume control device also includes
Open state detection module, shutdown volume preserving module, system sound volume module, the second volume comparison module；
Whether the open state detection module, be that cold boot starts or reset startup for detecting system；
The shutdown volume preserving module, for preserving volume value during shutdown；
The second volume comparison module, for entering with the minimum opening sound volume value to preserving volume value before the shutdown
Row compares.
After it is that cold boot starts or reset startup that open state detection module judges system, Audio Control Module is notified
According to the minimum opening sound volume value Lmin for being set to be preserved in system sound volume module by current volume, then obtain shutdown volume and protect
Volume value Ls is preserved before the shutdown preserved in storing module, the second volume comparison module is to preserving volume value Ls before the shutdown
It is compared with the minimum opening sound volume value Lmin, if volume value Ls is preserved before the shutdown being opened less than or equal to the minimum
Machine volume value Lmin, then notify for Audio Control Module current volume value to be set to the minimum opening sound volume value Lmin, otherwise
Volume value Ls, tool are preserved before volume is returned into the shutdown from the minimum opening sound volume value Lmin with default speedup relational expression
Body ground, is adjusted according to following default speedup relational expression：
La=[(Ls-Lmin)/Lmin] * Δs L
Wherein, La is the actual increase step-length of volume, and Δ L is that default volume increases step-length, Δ L may be configured as 1~5dB it
Between a certain numerical value, in the present embodiment, Δ L=2dB.
Above disclosed is only presently preferred embodiments of the present invention, it is impossible to rights protection model of the invention is limited with this
Enclose, therefore the equivalent variations made according to scope of the present invention patent, still belong to the scope that the present invention is covered.
Claims (10)
1. a kind of inter-vehicle information system method for controlling volume, it is characterised in that including：
S1, will need adjust volume each broadcast source and spacing be associated；
S2, the nearest spacing for obtaining this car and front truck, if the nearest spacing is more than the first preset security spacing, into step
S6, otherwise judges that the nearest spacing belongs to the grade of preset security spacing；
S3, acquisition current volume value, and save as initial volume value；
S4, judged according to the volume contingency table currently playing source volume value whether need adjustment, be then enter next step, otherwise
Into step S6；
S5, according to default volume distance relation formula adjust current volume value；
S6, the current environment inside car noise figure of acquisition, if the initial volume value is less than the environment inside car noise figure, according to pre-
If volume noise relationship formula adjusts current volume value, otherwise keep current volume value constant.
2. inter-vehicle information system method for controlling volume according to claim 1, it is characterised in that after step s 5, step
Also include before rapid S6：
Whether S51, the monitoring nearest spacing return to the first preset security spacing grade, are to return to current volume value
It is described.
3. inter-vehicle information system method for controlling volume according to claim 1 and 2, it is characterised in that in the step S6
Also include afterwards：
Whether S7, detecting system are that cold boot starts or reset startup, are that current volume is set into minimum opening sound volume
Value, and preservation volume value before shutdown is obtained, if volume value is preserved before the shutdown is less than or equal to the minimum opening sound volume value,
Current volume value is then set to the minimum opening sound volume value, otherwise into next step；
S8, volume is returned to by the shutdown from the minimum opening sound volume value with default speedup relational expression before preserve volume value,
And return to step S2.
4. inter-vehicle information system method for controlling volume according to claim 1, it is characterised in that the default volume distance
Relational expression is：
Lc=[Lr/Lmax] * Lr* (Smin/S1)
Wherein, Lr represents initial volume value, and unit is decibel；Lmax represents system max volume value, and unit is decibel；Smin tables
Show the nearest spacing of Ben Che and front truck；S1 represents the first preset security spacing.
5. inter-vehicle information system method for controlling volume according to claim 1, it is characterised in that the default volume distance
Relational expression is：
Lc=min { N+Lr/2, Lmax }.
N represents current environment inside car noise figure, and Lr represents initial volume value, and Lmax represents system max volume value, and min { } is represented
Take wherein smaller.
6. inter-vehicle information system method for controlling volume according to claim 1, it is characterised in that the default speedup relation
Formula is：
La=[(Ls-Lmin)/Lmin] * Δs L
Wherein, La is the actual increase step-length of volume, and Lmin is system minimal volume value, and Δ L is that default volume increases step-length, Δ
L=1~5dB.
7. inter-vehicle information system method for controlling volume according to claim 6, it is characterised in that the Δ L=2dB.
8. a kind of inter-vehicle information system sound volume control device, it is characterised in that including：Volume contingency table module, spacing obtain mould
Block, spacing grade judge module, broadcast source acquisition module, ambient noise acquisition module, the first volume comparison module, initial volume
Acquisition module, initial volume preserving module, system sound volume module, Audio Control Module；
The volume contingency table module, each broadcast source for will need to adjust volume is associated with spacing；
The spacing acquisition module, the spacing for obtaining this car and front truck；
The spacing grade judge module, for judging that nearest spacing belongs to the grade of preset security spacing；
The broadcast source acquisition module, for obtaining the broadcasting source information being currently running；
The ambient noise acquisition module, for obtaining current environment inside car noise figure；
The first volume comparison module, for comparing current volume value and environment inside car noise figure；
The initial volume acquisition module, the initial volume value before volume is not adjusted for obtaining；
The initial volume preserving module, for preserving the initial volume value；
The system sound volume module, for preserving system max volume value, system minimal volume value, minimum opening sound volume value；
The Audio Control Module, for adjusting current volume according to preset relation formula.
9. inter-vehicle information system sound volume control device according to claim 8, it is characterised in that also including for recovering
State the initial volume recovery module of initial volume value.
10. inter-vehicle information system sound volume control device according to claim 8 or claim 9, it is characterised in that also including start shape
State detection module, shutdown volume preserving module, system sound volume module, the second volume comparison module；
Whether the open state detection module, be that cold boot starts or reset startup for detecting system；
The shutdown volume preserving module, for preserving volume value during shutdown；
The second volume comparison module, for comparing with the minimum opening sound volume value preserving volume value before the shutdown
Compared with.
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| CN107147767A (en) * | 2017-06-30 | 2017-09-08 | 广东欧珀移动通信有限公司 | In Call control method, device, storage medium and terminal |
| CN108621933A (en) * | 2018-05-10 | 2018-10-09 | 重庆长安汽车股份有限公司 | A kind of vehicle-mounted control method and system based on active safety technologies |
| CN110928517A (en) * | 2018-09-20 | 2020-03-27 | 比亚迪股份有限公司 | Volume adjustment method, device and storage medium |
| CN111009251A (en) * | 2019-10-31 | 2020-04-14 | 惠州华阳通用电子有限公司 | Vehicle-mounted sound mixing method and device |
| CN112339684A (en) * | 2020-10-27 | 2021-02-09 | 广州汽车集团股份有限公司 | Automobile safety mechanism triggering method and device based on probability distribution |
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| CN110928517A (en) * | 2018-09-20 | 2020-03-27 | 比亚迪股份有限公司 | Volume adjustment method, device and storage medium |
| CN111009251A (en) * | 2019-10-31 | 2020-04-14 | 惠州华阳通用电子有限公司 | Vehicle-mounted sound mixing method and device |
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