CN102496376B - The control method that in a kind of vehicle-mounted information and entertainment system, sound is play and device - Google Patents
The control method that in a kind of vehicle-mounted information and entertainment system, sound is play and device Download PDFInfo
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- CN102496376B CN102496376B CN201110402774.3A CN201110402774A CN102496376B CN 102496376 B CN102496376 B CN 102496376B CN 201110402774 A CN201110402774 A CN 201110402774A CN 102496376 B CN102496376 B CN 102496376B
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Abstract
The control method that in a kind of vehicle-mounted information and entertainment system, sound is play, comprise: system creation one play mode list also stores, record in wherein said play mode list in each play mode and control sound broadcast mode and vehicle play mode under different conditions; The vehicle-state that systems axiol-ogy is current, according to the current vehicle-state obtained, the data of play mode under the corresponding vehicle state that extraction stores, and the control of sound broadcasting is carried out according to this play mode.The invention solves sound broadcasting and can not affect driver travels middle rolling car safety problem at vehicle.
Description
Technical field
The present invention relates to electronic device field, be specifically related to control method and the device of sound broadcasting in a kind of vehicle-mounted information and entertainment system.
Background technology
Along with the raising of car comfort, recreational requirement, in daily life, the technology such as network, communication, audiovisual entertainment of many maturations can be transplanted to vehicle-mounted information and entertainment system (In-VehicleInfotainment, be called for short IVI) in, make its audio-video playing function, the information processing function strengthens day by day, such as 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 day by day complicated, and the technology of some personal computer terminals can be applied in vehicle-mounted information and entertainment system, such as, gradually for the programming operation of sound card.The essence of programming audio frequency is exactly by means of driver, will carry out the various operations to sound card.The effect of driver is the low-level details that will shield hardware, such as register, caching etc., thus simplifies writing of application program.Sound card driver conventional under current Linux mainly contains two kinds: OSS and ALSA.Sound card can be controlled with MCI (MediaControlInterface, the MCI) order of Windows under Windows.
Because system entertainment applications needs to play sound mostly, when audio playing device is seized in multiple application, sound needs to determine final output according to certain decision condition.And the perception of driver for extraneous road conditions sound in vehicle travels is extremely important, and the sound of vehicle sound also can have an impact to surrounding environment.But current techniques is not distinguished to some extent to the broadcasting of sound.
Therefore, the current control program needing to provide sound broadcasting in a kind of vehicle-mounted information and entertainment system, can not affect the problem of driver in vehicle traveling middle rolling car safety to solve sound broadcasting.
Summary of the invention
Technical matters to be solved by this invention is to provide the control method and device that in a kind of vehicle-mounted information and entertainment system, sound is play, and can not affect the problem of driver in vehicle traveling middle rolling car safety to solve sound broadcasting.
In order to solve the problem, the invention provides the control method that in a kind of vehicle-mounted information and entertainment system, sound is play, comprising:
Described system creation one play mode list also stores, and records in each play mode and control sound broadcast mode and vehicle play mode under different conditions in wherein said play mode list;
The vehicle-state that described systems axiol-ogy is current, according to the current vehicle-state obtained, the data of play mode under the corresponding vehicle state that extraction stores, and the control of sound broadcasting is carried out according to this play mode.
Further, said method also can comprise: described vehicle-state comprises: night running state, navigation transport condition, business district transport condition, parking waiting state or common driving states;
The play mode list of described system creation, also record the data of the volume value setting of priority that each application module plays sound and sound, the data of the volume value setting of wherein said sound comprise: setting regulates the volume value of the every one-level of sound, maximum acoustic volume value and volume predetermined value.
Further, said method also can comprise: if the current vehicle condition that described system obtains is night running state, then carrying out the control of sound broadcasting according to night running pattern, by audio-visual for broadcasting sound volume setting for being less than described volume predetermined value, avoiding noise pollution;
If the current vehicle condition that described system obtains is navigation transport condition, then carries out the control of sound broadcasting according to navigation driving mode, preferentially play GPS navigation sound;
If the current vehicle condition that described system obtains is business district transport condition, then carries out the control of sound broadcasting according to business district driving mode, reduce the volume of current audio-visual broadcasting or carry out quiet control, avoid affecting road conditions sound;
If the current vehicle condition that described system obtains is parking waiting state, the control of sound broadcasting is then carried out according to parking waiting pattern, improve current audio-visual broadcasting volume or by audio-visual for broadcasting sound volume setting for being greater than described volume predetermined value, outstanding audio-visual sound effect;
If the current vehicle condition that described system obtains is common driving states, then carries out the control of sound broadcasting according to common driving pattern, carry out sound broadcasting according to the priority orders that each application module plays sound.
Further, said method also can comprise: described play mode is the sound play mode of the personalization of described default.
Further, said method also can comprise: described system carries out the step of the control of sound broadcasting, also comprises:
According to the mark of current application module, input priority compares with going the same way, and input priority of going the same way if judge is lower than the priority of current application module, then return and play unsuccessfully.
Further, said method also can comprise: if the judgement of described system is gone the same way, input priority is higher than the priority of current application module, comprises further: current application module and its road input priority compare by described system,
Judge that current application module whether can audio mixing, if so, then carry out audio mixing broadcasting;
If judge, current application module priority is high, then the sound carrying out current application module is play, otherwise returns and play unsuccessfully;
Judge Ge Ta road input priority, determine the input audio signal gain of Ge Ta road, the input of Ge Ta road, by the gain of priority determination relative signal, is limited by input gain and maximum acoustic volume value, determine Ge Ta road input final gain, carry out the control of sound broadcasting.
Further, said method also can comprise: described system is by each application module of application programming interface API Calls, carries out the control of sound broadcasting.
Present invention also offers the control device that in a kind of vehicle-mounted information and entertainment system, sound is play, comprising:
Creation mode unit, for creating a play mode list, recording in wherein said play mode list in each play mode and controlling sound broadcast mode and vehicle play mode under different conditions;
Storage unit, for storing described play mode list;
Detecting unit, for detecting current vehicle-state;
And control module, for according to the current vehicle-state obtained, extract the data of play mode under corresponding vehicle state in described storage unit, and carry out the control of sound broadcasting according to this play mode.
Further, said apparatus also can comprise: the vehicle-state that described detecting unit obtains comprises: night running state, navigation transport condition, business district transport condition, parking waiting state or common driving states;
The play mode list that described creation mode unit creates, also record the data of the volume value setting of priority that each application module plays sound and sound, the data of the volume value setting of wherein said sound comprise: setting regulates the volume value of the every one-level of sound, maximum acoustic volume value and volume predetermined value.
Further, said apparatus also can comprise: described control module also for, if judge obtain current vehicle condition be night running state, then carry out the control of sound broadcasting according to night running pattern, by audio-visual for broadcasting sound volume setting for being less than described volume predetermined value, avoid noise pollution;
If judge, the current vehicle condition of acquisition is as navigation transport condition, then carry out the control of sound broadcasting according to navigation driving mode, preferential broadcasting GPS navigation sound;
If judge, the current vehicle condition obtained is business district transport condition, then carry out the control of sound broadcasting according to business district driving mode, reduce the volume of current audio-visual broadcasting or carry out quiet control, avoid affecting road conditions sound;
If judge obtain current vehicle condition be parking waiting state, then carry out the control of sound broadcasting according to parking waiting pattern, improve current audio-visual broadcasting volume or by audio-visual for broadcastings sound volume setting for being greater than described volume predetermined value, give prominence to audio-visual sound effect;
If judge, the current vehicle condition obtained is common driving states, then carry out the control of sound broadcasting according to common driving pattern, carry out sound broadcasting according to the priority orders that each application module plays sound.
Compared with prior art, application the present invention, by predefine/self-defining sound play mode, the sound defining application plays priority; The sound broadcasting shielded based on priority by the driver of sound card interface of encapsulation is seized and gain adjustment operation.It makes the sound that arranges that driver can be convenient, flexible play, and because sound plays the problem producing traffic safety in avoiding vehicle to travel, and improves the comfortableness of vehicle.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the control method that in vehicle-mounted information and entertainment system of the present invention, sound is play;
Fig. 2 is the structural representation of device of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, the control method that in vehicle-mounted information and entertainment system of the present invention, sound is play, comprising:
Step 110, system creation one play mode list storing, record in wherein said play mode list in each play mode and control sound broadcast mode and vehicle play mode under different conditions;
The play mode list of described system creation, also record the data of the volume value setting of priority that each application module plays sound and sound, the data of the volume value setting of wherein said sound comprise: setting regulates the volume value of the every one-level of sound, maximum acoustic volume value and volume predetermined value.
The priority that each application module plays sound also can comprise Qian Ge road input priority.
Described system identifies by application module the priority priority setting each application module and play sound.
Described system calls each application module by API (ApplicationProgrammingInterface, application programming interface)
Described system carries out API Calls by bottom driver of sound card.
Described vehicle-state comprises: night running state, navigation transport condition, business district transport condition, parking waiting state or common driving states.
Wherein, under night running state, mainly noise pollution is avoided; Under navigation transport condition, mainly preferential with GPS navigation sound; At business district transport condition, main emphasis road conditions sound, avoids audio-visual acoustic impacts safe driving; In parking waiting state, main outstanding audio-visual sound effect, improves the comfortableness of vehicle; Under common driving states, then the priority orders played sound according to each application module carries out sound broadcasting.
The vehicle-state that step 120, systems axiol-ogy are current, according to the current vehicle-state obtained, the data of play mode under the corresponding vehicle state that extraction stores, and the control of sound broadcasting is carried out according to this play mode.
Described system calls each application module by API (ApplicationProgrammingInterface, application programming interface), carries out the control of sound broadcasting.
Wherein, if the current vehicle condition that described system obtains is night running state, then carries out the control of sound broadcasting according to night running pattern, refer to: described system by audio-visual for broadcasting sound volume setting for being less than described volume predetermined value, carry out sound broadcasting, avoid noise pollution;
If the current vehicle condition that described system obtains is navigation transport condition, then carries out the control of sound broadcasting according to navigation driving mode, refer to: when described system carries out sound broadcasting, preferential broadcasting GPS navigation sound;
If the current vehicle condition that described system obtains is business district transport condition, then carries out the control of sound broadcasting according to business district driving mode, refer to: described system reduces the volume of current audio-visual broadcasting or carries out quiet control, avoids affecting road conditions sound;
If the current vehicle condition that described system obtains is parking waiting state, the control of sound broadcasting is then carried out according to parking waiting pattern, refer to: described system improve current audio-visual broadcasting volume or by audio-visual for broadcastings sound volume setting for being greater than described volume predetermined value, give prominence to audio-visual sound effect;
If the current vehicle condition that described system obtains is common driving states, then carries out the control of sound broadcasting according to common driving pattern, refer to: the priority orders that described system plays sound according to each application module carries out sound broadcasting.
Be more than predefined sound play mode (can pre-enter for system developer), described play mode also can be the sound play mode of the personalization of described default in the present invention.By the sound play mode of the personalization of setting, driver can be made to carry out the broadcasting of the sound of each application module according to the suggestion of oneself.
Described system carries out the step of the control of sound broadcasting, also comprises:
According to the mark of current application module, input priority compares with going the same way, and input priority of going the same way if judge is lower than the priority of current application module, then return and play unsuccessfully.
If described system judgement is gone the same way, input priority is higher than the priority of current application module, comprises further: current application module and its road input priority compare by described system,
Judge that current application module whether can audio mixing, if so, then carry out audio mixing broadcasting;
If judge, current application module priority is high, then the sound carrying out current application module is play, otherwise returns and play unsuccessfully;
Judge Ge Ta road input priority, determine the input audio signal gain of Ge Ta road, the input of Ge Ta road, by the gain of priority determination relative signal, is limited by input gain and maximum acoustic volume value, determine Ge Ta road input final gain, carry out the control of sound broadcasting.
Below with the vocal clash process that Eample Analysis the present invention is concrete: system plays current sound, at this moment another sound of Another Application module request system plays, then system judges the priority of described Another Application module, if other sound priority of this application module priority ratio current application module and the input of its road is all high, then play the sound of this application module, stop to play to original sound;
If judge, the priority ratio current sound of Another Application module is all low with other sound priority of its road input, if now described Another Application module can be abandoned, then not by the sound of described Another Application module; If can not be abandoned, then by the sound of described Another Application module, the sound higher than its priority has finished entirely by the time, then play this sound;
If Another Application module needs to play immediately, and the sound of current broadcasting can not suspend, and can take audio mixing.
Driver can not be affected in vehicle traveling middle rolling car safety to reach sound broadcasting further, also a display screen can be set on the rear glass of car body, system judges that Ruo Chenei sound broadcast sound volume value reaches maximum acoustic volume value, then show information warning on a display screen, vehicle is reminded to external world, makes extraneous vehicle have a clear understanding of the state of this vehicle traveling; Driver can be improved further by which and travel middle rolling car safety at vehicle.
In sum, The inventive method achieves the priority acccess control of many sound and play simultaneously, can settlement procedure Transplanting Problem in conjunction with API Calls.
As shown in Figure 2, present invention also offers the control device that in a kind of vehicle-mounted information and entertainment system, sound is play, comprising: creation mode unit 201, storage unit 202, detecting unit 203 and control module 204, wherein,
Creation mode unit 201, for creating a play mode list, recording in wherein said play mode list in each play mode and controlling sound broadcast mode and vehicle play mode under different conditions;
Storage unit 202, for storing described play mode list;
Detecting unit 203, for detecting current vehicle-state;
Control module 204, for according to the current vehicle-state obtained, extracts the data of play mode under corresponding vehicle state in described storage unit 202, and carries out the control of sound broadcasting according to this play mode.
The vehicle-state that described detecting unit 203 obtains comprises: night running state, navigation transport condition, business district transport condition, parking waiting state or common driving states;
The play mode list that described creation mode unit 201 creates, also record the data of the volume value setting of priority that each application module plays sound and sound, the data of the volume value setting of wherein said sound comprise: setting regulates the volume value of the every one-level of sound, maximum acoustic volume value and volume predetermined value.
Described control module 204 also for, if judge obtain current vehicle condition be night running state, then carrying out the control of sound broadcasting according to night running pattern, by audio-visual for broadcasting sound volume setting for being less than described volume predetermined value, avoiding noise pollution;
If judge, the current vehicle condition of acquisition is as navigation transport condition, then carry out the control of sound broadcasting according to navigation driving mode, preferential broadcasting GPS navigation sound;
If judge, the current vehicle condition obtained is business district transport condition, then carry out the control of sound broadcasting according to business district driving mode, reduce the volume of current audio-visual broadcasting or carry out quiet control, avoid affecting road conditions sound;
If judge obtain current vehicle condition be parking waiting state, then carry out the control of sound broadcasting according to parking waiting pattern, improve current audio-visual broadcasting volume or by audio-visual for broadcastings sound volume setting for being greater than described volume predetermined value, give prominence to audio-visual sound effect;
If judge, the current vehicle condition obtained is common driving states, then carry out the control of sound broadcasting according to common driving pattern, carry out sound broadcasting according to the priority orders that each application module plays sound.
Creation mode unit 201, also for creating the sound play mode of the personalization of user's setting.
Described control module 204 also for, according to the mark of current application module, input priority compares with going the same way, if judge, input priority of going the same way is lower than the priority of current application module, then return and play unsuccessfully.
Described control module 204 is further used for, and input priority of going the same way if judge is higher than the priority of current application module, comprises further: current application module and its road input priority compare by described system,
Judge that current application module whether can audio mixing, if so, then carry out audio mixing broadcasting;
If judge, current application module priority is high, then the sound carrying out current application module is play, otherwise returns and play unsuccessfully;
Judge Ge Ta road input priority, determine the input audio signal gain of Ge Ta road, the input of Ge Ta road, by the gain of priority determination relative signal, is limited by input gain and maximum acoustic volume value, determine Ge Ta road input final gain, carry out the control of sound broadcasting.
Driver can not be affected in vehicle traveling middle rolling car safety to reach sound broadcasting further, also a display screen can be set on the rear glass of car body, control module 204 judges that Ruo Chenei sound broadcast sound volume value reaches maximum acoustic volume value, then show information warning on a display screen, vehicle is reminded to external world, makes extraneous vehicle have a clear understanding of the state of this vehicle traveling; Driver can be improved further by the display of this display screen and travel middle rolling car safety at vehicle.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, any people being familiar with this technology is in the technical scope disclosed by the present invention; the change 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 (9)
1. the control method that in vehicle-mounted information and entertainment system, sound is play, is characterized in that, comprising:
Described system creation one play mode list also stores, and records in each play mode and control sound broadcast mode and vehicle play mode under different conditions in wherein said play mode list; Described play mode list also records the data of the volume value setting of priority that each application module plays sound and sound, and the data of the volume value setting of wherein said sound comprise: setting regulates the volume value of the every one-level of sound, maximum acoustic volume value and volume predetermined value;
The vehicle-state that described systems axiol-ogy is current, according to the current vehicle-state obtained, the data of play mode under the corresponding vehicle state that extraction stores, and the control of sound broadcasting is carried out according to this play mode, wherein said system is according to the mark of current application module, input priority compares with going the same way, input priority of going the same way if judge is higher than the priority of current application module, then comprise the following steps: current application module and its road input priority compare by described system, judge that current application module whether can audio mixing, if, then carry out audio mixing broadcasting, if judge, current application module priority is high, then the sound carrying out current application module is play, otherwise returns and play unsuccessfully, judge Ge Ta road input priority, determine the input audio signal gain of Ge Ta road, the input of Ge Ta road, by the gain of priority determination relative signal, is limited by input gain and maximum acoustic volume value, determine Ge Ta road input final gain, carry out the control of sound broadcasting.
2. the method for claim 1, is characterized in that,
Described vehicle-state comprises: night running state, navigation transport condition, business district transport condition, parking waiting state or common driving states.
3. method as claimed in claim 2, is characterized in that,
Also comprise:
If the current vehicle condition that described system obtains is night running state, then carries out the control of sound broadcasting according to night running pattern, by audio-visual for broadcasting sound volume setting for being less than described volume predetermined value, avoiding noise pollution;
If the current vehicle condition that described system obtains is navigation transport condition, then carries out the control of sound broadcasting according to navigation driving mode, preferentially play GPS navigation sound;
If the current vehicle condition that described system obtains is business district transport condition, then carries out the control of sound broadcasting according to business district driving mode, reduce the volume of current audio-visual broadcasting or carry out quiet control, avoid affecting road conditions sound;
If the current vehicle condition that described system obtains is parking waiting state, the control of sound broadcasting is then carried out according to parking waiting pattern, improve current audio-visual broadcasting volume or by audio-visual for broadcasting sound volume setting for being greater than described volume predetermined value, outstanding audio-visual sound effect;
If the current vehicle condition that described system obtains is common driving states, then carries out the control of sound broadcasting according to common driving pattern, carry out sound broadcasting according to the priority orders that each application module plays sound.
4. the method for claim 1, is characterized in that,
Comprise further: described play mode is the sound play mode of the personalization of described default.
5. method as claimed in claim 2, is characterized in that,
Described system carries out the step of the control of sound broadcasting, also comprises:
According to the mark of current application module, input priority compares with going the same way, and input priority of going the same way if judge is lower than the priority of current application module, then return and play unsuccessfully.
6. method as claimed in claim 2, is characterized in that,
Described system is by each application module of application programming interface API Calls, carries out the control of sound broadcasting.
7. the control device that in vehicle-mounted information and entertainment system, sound is play, is characterized in that, comprising:
Creation mode unit, for creating a play mode list, recording in wherein said play mode list in each play mode and controlling sound broadcast mode and vehicle play mode under different conditions; Described play mode list also records the data of the volume value setting of priority that each application module plays sound and sound, and the data of the volume value setting of wherein said sound comprise: setting regulates the volume value of the every one-level of sound, maximum acoustic volume value and volume predetermined value;
Storage unit, for storing described play mode list;
Detecting unit, for detecting current vehicle-state;
And control module, for according to the current vehicle-state obtained, extract the data of play mode under corresponding vehicle state in described storage unit, and carry out the control of sound broadcasting according to this play mode; According to the mark of current application module, input priority compares with going the same way, input priority of going the same way if judge is higher than the priority of current application module, then current application module and its road input priority are compared, judge that current application module whether can audio mixing, if so, then audio mixing broadcasting is carried out; If judge, current application module priority is high, then the sound carrying out current application module is play, otherwise returns and play unsuccessfully; Judge Ge Ta road input priority, determine the input audio signal gain of Ge Ta road, the input of Ge Ta road, by the gain of priority determination relative signal, is limited by input gain and maximum acoustic volume value, determine Ge Ta road input final gain, carry out the control of sound broadcasting.
8. device as claimed in claim 7, is characterized in that,
The vehicle-state that described detecting unit obtains comprises: night running state, navigation transport condition, business district transport condition, parking waiting state or common driving states.
9. device as claimed in claim 7, is characterized in that,
Described control module also for, if judge obtain current vehicle condition be night running state, then carrying out the control of sound broadcasting according to night running pattern, by audio-visual for broadcasting sound volume setting for being less than described volume predetermined value, avoiding noise pollution;
If judge, the current vehicle condition of acquisition is as navigation transport condition, then carry out the control of sound broadcasting according to navigation driving mode, preferential broadcasting GPS navigation sound;
If judge, the current vehicle condition obtained is business district transport condition, then carry out the control of sound broadcasting according to business district driving mode, reduce the volume of current audio-visual broadcasting or carry out quiet control, avoid affecting road conditions sound;
If judge obtain current vehicle condition be parking waiting state, then carry out the control of sound broadcasting according to parking waiting pattern, improve current audio-visual broadcasting volume or by audio-visual for broadcastings sound volume setting for being greater than described volume predetermined value, give prominence to audio-visual sound effect;
If judge, the current vehicle condition obtained is common driving states, then carry out the control of sound broadcasting according to common driving pattern, carry out sound broadcasting according to the priority orders that each application module plays sound.
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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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