CN102496376A - Method and device for controlling sound play in vehicular information entertainment system - Google Patents
Method and device for controlling sound play in vehicular information entertainment system Download PDFInfo
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- CN102496376A CN102496376A CN2011104027743A CN201110402774A CN102496376A CN 102496376 A CN102496376 A CN 102496376A CN 2011104027743 A CN2011104027743 A CN 2011104027743A CN 201110402774 A CN201110402774 A CN 201110402774A CN 102496376 A CN102496376 A CN 102496376A
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Abstract
The invention relates to a method for controlling sound play in a vehicular information entertainment system. The method comprises the following steps that: a system creates a play mode list and stores the play mode list, wherein a sound play control manner in each play mode and play modes of a vehicle in different state are recoded in the play model list; and the system detects a current vehicle state, extracts stored data of a play mode in a corresponding vehicle state according to the acquired current vehicle state, and controls sound play according to the play mode. The method can be used for preventing the driving safety of a driver from being influenced by played sound when a vehicle runs.
Description
Technical field
The present invention relates to electronic device field, be specifically related to the control method and the device of sound playing in a kind of vehicle-mounted information and entertainment system.
Background technology
Raising along with car comfort, recreational requirement; Technology such as the network of many maturations, communication, audiovisual entertainment can be transplanted to vehicle-mounted information and entertainment system (In-Vehicle Infotainment in the daily life; Be called for short IVI) in; Its audio-video playing function, the information processing function are strengthened day by day, for example MP3/MP4 player, GPS navigation, radio, surfing on the net, car phone, word processing, picture browsing etc.
Along with the enhancing gradually of vehicle-mounted information and entertainment system function, its equipment is complicated day by day, and the technology of some personal computer terminals can be applied in the vehicle-mounted information and entertainment system gradually, for example for the programming operation of sound card.The essence of programming audio frequency is exactly to accomplish the various operations to sound card by means of driver.The effect of driver is the bottom details that will shield hardware, for example register, caching etc., thus simplify writing of application program.Sound card driver commonly used mainly contains two kinds under the Linux at present: OSS and ALSA.Windows can use MCI (Media Control I nterface, the MCI) order of Windows to control sound card down.
Because system's entertainment applications need play sound mostly, when audio playing device was seized in a plurality of application, sound need be according to certain final output of decision condition decision.And the driver is extremely important for the perception of extraneous road conditions sound in vehicle ', and the sound of vehicle sound equipment also can exert an influence to surrounding environment.But current techniques is not distinguished the broadcast of sound to some extent.
Therefore, current needs provide the controlling schemes of sound playing in a kind of vehicle-mounted information and entertainment system, can not influence the problem of driver in vehicle ' middle rolling car safety to solve sound playing.
Summary of the invention
Technical matters to be solved by this invention provides the control method and the device of sound playing in a kind of vehicle-mounted information and entertainment system, can not influence the problem of driver in vehicle ' middle rolling car safety to solve sound playing.
In order to address the above problem, the invention provides the control method of sound playing in a kind of vehicle-mounted information and entertainment system, comprising:
Said system creation one play mode tabulation and storage are controlled sound broadcast mode and vehicle play mode under different conditions in each play mode of record in the wherein said play mode tabulation;
Said system detects the current vehicles state, according to the current vehicles state that obtains, extracts the data of play mode under the corresponding vehicle state of storing, and carries out the control of sound playing according to this play mode.
Further, said method also can comprise: said vehicle-state comprises: night running state, navigation transport condition, business district transport condition, parking waiting status or common driving states;
The play mode tabulation of said system creation; Also record the data that the volume value of priority that each application module plays sound and sound is set, the data that the volume value of wherein said sound is set comprise: set volume value, maximum acoustic volume value and the volume predetermined value of regulating each grade of sound.
Further; Said method also can comprise: said system is if the current vehicle state that obtains is the night running state; Then carry out the control of sound playing, will play audio-visual sound volume setting, avoid noise pollution for less than said volume predetermined value according to the night running pattern;
Said system then carries out the control of sound playing according to the navigation driving mode if the current vehicle state that obtains is the navigation transport condition, preferentially plays GPS navigation sound;
Said system then carries out the control of sound playing if the current vehicle state that obtains is the business district transport condition according to the business district driving mode, reduce the volume of current audio-visual broadcast or carry out quiet control, avoids influencing road conditions sound;
Said system is if the current vehicle state that obtains is the parking waiting status; Then carry out the control of sound playing according to the parking standby mode; Improve the volume of current audio-visual broadcast or will play audio-visual sound volume setting, give prominence to audio-visual sound effect for greater than said volume predetermined value;
Said system then carries out the control of sound playing according to common driving pattern if the current vehicle state that obtains is common driving states, carries out sound playing according to the priority orders that each application module plays sound.
Further, said method also can comprise: said play mode is the sound playing pattern of the personalization of said default.
Further, said method also can comprise: said system carries out the step of the control of sound playing, also comprises:
According to the sign of current application module, compare with the input priority of going the same way, judge if the input priority of going the same way is lower than the priority of current application module, then return and play failure.
Further, said method also can comprise: said system judges that further comprise: said system compares current application module and its road input priority if the input priority of going the same way is higher than the priority of current application module,
But judge whether audio mixing of current application module, if then carry out audio mixing and play;
Judge if current application module priority is high, then carry out the sound playing of current application module, play failure otherwise return;
Judge each its road input priority; Confirm each its road input audio signal gain, each its road input is confirmed the relative signal gain through priority, limits through input gain and maximum acoustic volume value; Confirm each its road input final gain, carry out the control of sound playing.
Further, said method also can comprise: said system is through each application module of API API Calls, carries out the control of sound playing.
The present invention also provides the control device of sound playing in a kind of vehicle-mounted information and entertainment system, comprising:
The creation mode unit is used to create play mode tabulation, controls sound broadcast mode and vehicle play mode under different conditions in each play mode of record in the wherein said play mode tabulation;
Storage unit is used to store said play mode tabulation;
Detecting unit is used to detect the current vehicles state;
And control module, be used for according to the current vehicles state that obtains, extract in the said storage unit data of play mode under the corresponding vehicle state, and carry out the control of sound playing according to this play mode.
Further, said apparatus also can comprise: the vehicle-state that said detecting unit obtains comprises: night running state, navigation transport condition, business district transport condition, parking waiting status or common driving states;
The play mode tabulation that said creation mode unit is created; Also record the data that the volume value of priority that each application module plays sound and sound is set, the data that the volume value of wherein said sound is set comprise: set volume value, maximum acoustic volume value and the volume predetermined value of regulating each grade of sound.
Further; Said apparatus also can comprise: said control module also is used for, and judges if the current vehicle state that obtains is the night running state, then carries out the control of sound playing according to the night running pattern; To play audio-visual sound volume setting for less than said volume predetermined value, avoid noise pollution;
Judge if the current vehicle state that obtains is the navigation transport condition, then carry out the control of sound playing, preferentially play GPS navigation sound according to the navigation driving mode;
Judge if the current vehicle state that obtains is the business district transport condition, then carry out the control of sound playing, reduce the volume of current audio-visual broadcast or carry out quiet control, avoid influencing road conditions sound according to the business district driving mode;
Judge if the current vehicle state that obtains is the parking waiting status, then carry out the control of sound playing, improve the volume of current audio-visual broadcast or will play audio-visual sound volume setting, give prominence to audio-visual sound effect for greater than said volume predetermined value according to the parking standby mode;
Judge if the current vehicle state that obtains is common driving states, then carry out the control of sound playing, carry out sound playing according to the priority orders that each application module plays sound according to common driving pattern.
Compared with prior art, use the present invention,, stipulated the sound playing priority of using through predefine/self-defining sound playing pattern; Sound card driving interface through encapsulation has shielded to seize with gain-adjusted based on the sound playing of priority operates.It makes the sound playing that is provided with that the driver can be convenient, flexible, avoids in the vehicle ' because sound playing produces the problem of traffic safety, and improves the comfortableness of vehicle.
Description of drawings
Fig. 1 is the process flow diagram of the control method of sound playing in the vehicle-mounted information and entertainment system of the present invention;
Fig. 2 is the structural representation of device of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
As shown in Figure 1, the control method of sound playing in the vehicle-mounted information and entertainment system of the present invention comprises:
The play mode tabulation of said system creation; Also record the data that the volume value of priority that each application module plays sound and sound is set, the data that the volume value of wherein said sound is set comprise: set volume value, maximum acoustic volume value and the volume predetermined value of regulating each grade of sound.
The priority that each application module plays sound also can comprise preceding each road input priority.
Said system identifies through application module to set the priority priority that each application module plays sound.
Each application module calls through API (Application Programming Interface, API) in said system
Said system drives through the bottom sound card to carry out API Calls.
Said vehicle-state comprises: night running state, navigation transport condition, business district transport condition, parking waiting status or common driving states.
Wherein, under the night running state, mainly avoid noise pollution; Under the navigation transport condition, mainly preferential with GPS navigation sound; The transport condition in the business district is mainly paid attention to road conditions sound, avoids audio-visual sound to influence safe driving; In the parking waiting status, mainly outstanding audio-visual sound effect, the comfortableness of raising vehicle; Under common driving states, the priority orders that then plays sound according to each application module is carried out sound playing.
Each application module calls through API (Application Programming Interface, API) in said system, carries out the control of sound playing.
Wherein, Said system then carries out the control of sound playing if the current vehicle state that obtains is the night running state according to the night running pattern, be meant: it is less than said volume predetermined value that said system will play audio-visual sound volume setting; Carry out sound playing, avoid noise pollution;
Said system then carries out the control of sound playing according to the navigation driving mode if the current vehicle state that obtains is the navigation transport condition, is meant: when said system carries out sound playing, preferentially play GPS navigation sound;
Said system then carries out the control of sound playing if the current vehicle state that obtains is the business district transport condition according to the business district driving mode, be meant: said system reduces the volume of current audio-visual broadcast or carries out quiet control, avoids influencing road conditions sound;
Said system is if the current vehicle state that obtains is the parking waiting status; Then carry out the control of sound playing according to the parking standby mode; Be meant: said system improves the volume of current audio-visual broadcast or will play audio-visual sound volume setting for greater than said volume predetermined value, gives prominence to audio-visual sound effect;
Said system then carries out the control of sound playing according to common driving pattern if the current vehicle state that obtains is common driving states, and be meant: said system carries out sound playing according to the priority orders that each application module plays sound.
More than be predefined sound playing pattern (can import in advance for system developer), said in the present invention play mode also can be the sound playing pattern of the personalization of said default.Sound playing pattern through the personalization set can make the driver carry out the broadcast of the sound of each application module according to the suggestion of oneself.
Said system carries out the step of the control of sound playing, also comprises:
According to the sign of current application module, compare with the input priority of going the same way, judge if the input priority of going the same way is lower than the priority of current application module, then return and play failure.
Said system judges that further comprise: said system compares current application module and its road input priority if the input priority of going the same way is higher than the priority of current application module,
But judge whether audio mixing of current application module, if then carry out audio mixing and play;
Judge if current application module priority is high, then carry out the sound playing of current application module, play failure otherwise return;
Judge each its road input priority; Confirm each its road input audio signal gain, each its road input is confirmed the relative signal gain through priority, limits through input gain and maximum acoustic volume value; Confirm each its road input final gain, carry out the control of sound playing.
Resolving the concrete vocal clash of the present invention with instance below handles: system is playing current sound; At this moment Another Application module Request System is play another sound; Then the priority of said Another Application module is judged by system; If this application module priority ratio current application module is all high with other sound priority of its road input, then play the sound of this application module, original sound is ended to play;
If judge that the current sound of priority ratio of Another Application module is all low with other sound priority of its road input, if this moment, said Another Application module can be abandoned, then not with the sound of said Another Application module; If can not be abandoned, then with the sound of said Another Application module, the sound higher than its priority has finished entirely by the time, then plays this sound;
If the Another Application module needs to play immediately, and current sound played can not be suspended, and can take audio mixing.
Can not influence the driver in vehicle ' middle rolling car safety in order further to reach sound playing; Also can be at the display screen that is provided with back on glass of car body; System judges that Ruo Chenei sound playing volume value reaches the maximum acoustic volume value; Then on display screen, show information warning, vehicle is reminded to external world, makes the clear state of understanding this vehicle ' of extraneous vehicle; Can further improve the driver in vehicle ' middle rolling car safety through this mode.
In sum, method of the present invention has realized the preferential control of many sound and has play simultaneously, can transplant problem by settlement procedure in conjunction with API Calls.
As shown in Figure 2, the present invention also provides the control device of sound playing in a kind of vehicle-mounted information and entertainment system, comprising: creation mode unit 201, storage unit 202, detecting unit 203 and control module 204, wherein,
Creation mode unit 201 is used to create play mode tabulation, controls sound broadcast mode and vehicle play mode under different conditions in each play mode of record in the wherein said play mode tabulation;
Storage unit 202 is used to store said play mode tabulation;
Detecting unit 203 is used to detect the current vehicles state;
Control module 204 is used for according to the current vehicles state that obtains, extracts in the said storage unit 202 data of play mode under the corresponding vehicle state, and carries out the control of sound playing according to this play mode.
The vehicle-state that said detecting unit 203 obtains comprises: night running state, navigation transport condition, business district transport condition, parking waiting status or common driving states;
The play mode tabulation that said creation mode unit 201 is created; Also record the data that the volume value of priority that each application module plays sound and sound is set, the data that the volume value of wherein said sound is set comprise: set volume value, maximum acoustic volume value and the volume predetermined value of regulating each grade of sound.
Said control module 204 also is used for, and judges if the current vehicle state that obtains is the night running state, then carries out the control of sound playing according to the night running pattern, will play audio-visual sound volume setting for less than said volume predetermined value, avoids noise pollution;
Judge if the current vehicle state that obtains is the navigation transport condition, then carry out the control of sound playing, preferentially play GPS navigation sound according to the navigation driving mode;
Judge if the current vehicle state that obtains is the business district transport condition, then carry out the control of sound playing, reduce the volume of current audio-visual broadcast or carry out quiet control, avoid influencing road conditions sound according to the business district driving mode;
Judge if the current vehicle state that obtains is the parking waiting status, then carry out the control of sound playing, improve the volume of current audio-visual broadcast or will play audio-visual sound volume setting, give prominence to audio-visual sound effect for greater than said volume predetermined value according to the parking standby mode;
Judge if the current vehicle state that obtains is common driving states, then carry out the control of sound playing, carry out sound playing according to the priority orders that each application module plays sound according to common driving pattern.
Creation mode unit 201 also is used to create the sound playing pattern of the personalization that the user sets.
Said control module 204 also is used for, and according to the sign of current application module, compares with the input priority of going the same way, and judges if the input priority of going the same way is lower than the priority of current application module, then returns and plays failure.
Said control module 204 is further used for, and judges that further comprise: said system compares current application module and its road input priority if the input priority of going the same way is higher than the priority of current application module,
But judge whether audio mixing of current application module, if then carry out audio mixing and play;
Judge if current application module priority is high, then carry out the sound playing of current application module, play failure otherwise return;
Judge each its road input priority; Confirm each its road input audio signal gain, each its road input is confirmed the relative signal gain through priority, limits through input gain and maximum acoustic volume value; Confirm each its road input final gain, carry out the control of sound playing.
Can not influence the driver in vehicle ' middle rolling car safety in order further to reach sound playing; Also can be at the display screen that is provided with back on glass of car body; Control module 204 judges that Ruo Chenei sound playing volume value reaches the maximum acoustic volume value; Then on display screen, show information warning, vehicle is reminded to external world, makes the clear state of understanding this vehicle ' of extraneous vehicle; Demonstration through this display screen can further improve the driver in vehicle ' middle rolling car safety.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with this technological people in the technical scope that the present invention disclosed; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. the control method of sound playing in the vehicle-mounted information and entertainment system is characterized in that, comprising:
Said system creation one play mode tabulation and storage are controlled sound broadcast mode and vehicle play mode under different conditions in each play mode of record in the wherein said play mode tabulation;
Said system detects the current vehicles state, according to the current vehicles state that obtains, extracts the data of play mode under the corresponding vehicle state of storing, and carries out the control of sound playing according to this play mode.
2. the method for claim 1 is characterized in that,
Said vehicle-state comprises: night running state, navigation transport condition, business district transport condition, parking waiting status or common driving states;
The play mode tabulation of said system creation; Also record the data that the volume value of priority that each application module plays sound and sound is set, the data that the volume value of wherein said sound is set comprise: set volume value, maximum acoustic volume value and the volume predetermined value of regulating each grade of sound.
3. method as claimed in claim 2 is characterized in that,
Also comprise:
Said system then carries out the control of sound playing if the current vehicle state that obtains is the night running state according to the night running pattern, will play audio-visual sound volume setting for less than said volume predetermined value, avoids noise pollution;
Said system then carries out the control of sound playing according to the navigation driving mode if the current vehicle state that obtains is the navigation transport condition, preferentially plays GPS navigation sound;
Said system then carries out the control of sound playing if the current vehicle state that obtains is the business district transport condition according to the business district driving mode, reduce the volume of current audio-visual broadcast or carry out quiet control, avoids influencing road conditions sound;
Said system is if the current vehicle state that obtains is the parking waiting status; Then carry out the control of sound playing according to the parking standby mode; Improve the volume of current audio-visual broadcast or will play audio-visual sound volume setting, give prominence to audio-visual sound effect for greater than said volume predetermined value;
Said system then carries out the control of sound playing according to common driving pattern if the current vehicle state that obtains is common driving states, carries out sound playing according to the priority orders that each application module plays sound.
4. the method for claim 1 is characterized in that,
Further comprise: said play mode is the sound playing pattern of the personalization of said default.
5. method as claimed in claim 2 is characterized in that,
Said system carries out the step of the control of sound playing, also comprises:
According to the sign of current application module, compare with the input priority of going the same way, judge if the input priority of going the same way is lower than the priority of current application module, then return and play failure.
6. method as claimed in claim 5 is characterized in that,
Said system judges that further comprise: said system compares current application module and its road input priority if the input priority of going the same way is higher than the priority of current application module,
But judge whether audio mixing of current application module, if then carry out audio mixing and play;
Judge if current application module priority is high, then carry out the sound playing of current application module, play failure otherwise return;
Judge each its road input priority; Confirm each its road input audio signal gain, each its road input is confirmed the relative signal gain through priority, limits through input gain and maximum acoustic volume value; Confirm each its road input final gain, carry out the control of sound playing.
7. method as claimed in claim 2 is characterized in that,
Said system is through each application module of API API Calls, carries out the control of sound playing.
8. the control device of sound playing in the vehicle-mounted information and entertainment system is characterized in that, comprising:
The creation mode unit is used to create play mode tabulation, controls sound broadcast mode and vehicle play mode under different conditions in each play mode of record in the wherein said play mode tabulation;
Storage unit is used to store said play mode tabulation;
Detecting unit is used to detect the current vehicles state;
And control module, be used for according to the current vehicles state that obtains, extract in the said storage unit data of play mode under the corresponding vehicle state, and carry out the control of sound playing according to this play mode.
9. device as claimed in claim 8 is characterized in that,
The vehicle-state that said detecting unit obtains comprises: night running state, navigation transport condition, business district transport condition, parking waiting status or common driving states;
The play mode tabulation that said creation mode unit is created; Also record the data that the volume value of priority that each application module plays sound and sound is set, the data that the volume value of wherein said sound is set comprise: set volume value, maximum acoustic volume value and the volume predetermined value of regulating each grade of sound.
10. device as claimed in claim 8 is characterized in that,
Said control module also is used for, and judges if the current vehicle state that obtains is the night running state, then carries out the control of sound playing according to the night running pattern, will play audio-visual sound volume setting for less than said volume predetermined value, avoids noise pollution;
Judge if the current vehicle state that obtains is the navigation transport condition, then carry out the control of sound playing, preferentially play GPS navigation sound according to the navigation driving mode;
Judge if the current vehicle state that obtains is the business district transport condition, then carry out the control of sound playing, reduce the volume of current audio-visual broadcast or carry out quiet control, avoid influencing road conditions sound according to the business district driving mode;
Judge if the current vehicle state that obtains is the parking waiting status, then carry out the control of sound playing, improve the volume of current audio-visual broadcast or will play audio-visual sound volume setting, give prominence to audio-visual sound effect for greater than said volume predetermined value according to the parking standby mode;
Judge if the current vehicle state that obtains is common driving states, then carry out the control of sound playing, carry out sound playing according to the priority orders that each application module plays sound according to common driving pattern.
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| CN201110402774.3A CN102496376B (en) | 2011-12-07 | 2011-12-07 | The control method that in a kind of vehicle-mounted information and entertainment system, sound is play and device |
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| CN201110402774.3A CN102496376B (en) | 2011-12-07 | 2011-12-07 | The control method that in a kind of vehicle-mounted information and entertainment system, sound is play and device |
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