CN103187061A - Speech conversational system in vehicle - Google Patents
Speech conversational system in vehicle Download PDFInfo
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- CN103187061A CN103187061A CN2011104500050A CN201110450005A CN103187061A CN 103187061 A CN103187061 A CN 103187061A CN 2011104500050 A CN2011104500050 A CN 2011104500050A CN 201110450005 A CN201110450005 A CN 201110450005A CN 103187061 A CN103187061 A CN 103187061A
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Abstract
A speech conversational system in a vehicle comprises a speech input unit, a speech conversion unit, a storage unit, an order identification unit and an application processing unit. The speech input unit is used for receiving a speech. The speech conversion unit is used for forming a record file based on the speech received by the speech input unit, extracting speech phonemes from the speech for identification and forming phonetic feature information based on the identified speech phonemes. The storage unit is used for storing scenario order texts corresponding to all vehicle-mounted application scenarios, and operational order texts corresponding to application operation under all the vehicle-mounted application scenarios. The order identification unit is used for searching the scenario order text and the operational order text which are respectively matched with the phonetic feature information converted by the speech conversion unit from the storage unit, and forming a corresponding scenario starting order and a corresponding application operation order respectively. The application processing unit is used for conducting starting operation after obtaining the corresponding scenario starting order, and conducting the application operation after obtaining the corresponding application operation order. The speech conversational system in the vehicle simplifies user operation and improves running safety of the vehicle.
Description
Technical field
The present invention relates to technical field of information processing, relate in particular to speech dialogue system in a kind of car.
Background technology
Along with the progress of expanding economy and society, automobile becomes the popular consumer goods gradually.The consumer group of automobile is in continuous expansion, and the consumer is also more and more higher to the requirement of automobile.In recent years, except economy, dynamic property, driving is when driving experienced and is also become the focus that the consumer pays close attention to.The technical development of mobile unit is also thereupon being gone into more and more deeply.
At present, mostly be equipped with the mobile unit of functions such as having for example music, broadcasting are listened to, e-book reading on the automobile.These mobile units provide the experience of multiple amusement and application function when driving for the user.And along with the development of lcd touch technology, the control panel of mobile unit also is converted to the lcd touch display screen from traditional key panel, and these have all further improved the convenience that the user uses, and user interface more intuitively is provided.
In addition, along with the development of mobile communication technology, the technology of mobile unit is also more and more as the function integrated development.At present, some mobile unit can be realized functions such as voice call, network browsing by up-to-date 3G network, makes mobile unit that a kind of mobile application system that can provide comprehensive function to experience really is provided.
Yet, even because the introducing of lcd touch technology, user's mode of operation does not when driving change yet, and any function is used still needs the user to instruct to realize by manual input operation.Use for some complicated functions, this has increased operation complexity undoubtedly.In addition, the driving process safe always is the key factor that needs consideration, and manual operation also will inevitably disperse driver's notice frequently, has increased a lot of potential safety hazards for the driving process thus.
Summary of the invention
The problem that the present invention solves provides speech dialogue system in a kind of car, simplifies the complicated operation degree that vehicle-mounted function is used, and strengthens traveling security.
In order to address the above problem, the invention provides speech dialogue system in a kind of car, comprising:
Voice-input unit is used for receiving voice;
The speech conversion unit, the voice that are used for receiving based on described voice-input unit form recording file, and extract phoneme of speech sound and identify from described recording file, and form phonetic feature information based on the phoneme of speech sound that identifies;
Storage unit is used for the corresponding scene instruction of the various vehicular applications scenes of storage text, and the corresponding operational order text of the application operating under the various scene;
The instruction recognition unit, the scene of the phonetic feature information matches of search and speech conversion cell translation instruction text from storage unit when searching the scene instruction text of coupling, forms corresponding scene enabled instruction; And from storage unit the operational order text of search and the phonetic feature information matches of speech conversion cell translation, when searching the operational order text of coupling, form corresponding application operating instruction;
Use processing unit, after the scene enabled instruction that obtains correspondence, start, and after obtaining corresponding application operating instruction, carry out application operating.
Compared with prior art, such scheme has the following advantages: speech dialogue system is when realizing that vehicle-mounted function is used in the described car, only need the user by voice mode input instruction, need not any manual operation, thereby greatly reduce the complicated operation degree of user when realizing that vehicle-mounted function is used.
In addition, owing to need not manual operation, for the driver, it just need not to take sb's mind off sth in driving procedure and carries out vehicle-mounted function application operating, namely, the driver can both hands not departure direction dish, sight line do not leave under the situation on road surface and control mobile unit, drive concentration degree thereby improve the driver, improve the security and drive to experience of driving.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of speech dialogue system in the car of the present invention;
Fig. 2 is the structural representation of a kind of embodiment of speech dialogue system in the car of the present invention;
Fig. 3 is a kind of implementation structural representation of voice recognition unit in the interior speech dialogue system of car shown in Figure 2;
Fig. 4 is the structural representation of the another kind of embodiment of speech dialogue system in the car of the present invention.
Embodiment
Just as described in the background section, in the existing mobile unit, any function is used still needs the user to instruct to realize by manual input operation.Thereby, to use for some complicated functions, this has increased operation complexity undoubtedly.And, for the driving process has increased a lot of potential safety hazards.In view of this, speech dialogue system is changed by the phonetic order that the user is sent in the car provided by the invention, obtain the command information that comprises in the described phonetic order, start and carry out and use according to described command information, to realize carrying out vehicle-mounted function application operating by phonetic order.
Further set forth speech dialogue system in the car of the present invention below in conjunction with accompanying drawing.
With reference to shown in Figure 1, a kind of embodiment of speech dialogue system comprises in the car of the present invention:
Voice-input unit 10 is used for receiving voice;
Use processing unit 50, after the scene enabled instruction that obtains correspondence, start, and after obtaining corresponding application operating instruction, carry out application operating.
In the above-mentioned embodiment, be phonetic feature information by speech conversion unit 20 with the speech conversion that the user imports by voice-input unit 10, identify by 40 pairs of described phonetic feature information of instruction recognition unit again.When comprising command information in the voice of user's input, described instruction recognition unit 40 just can obtain from described phonetic feature information and the scene instruction text of storage unit 30 storages or the information of operational order text matches, and then just can form corresponding instruction.Thereby described application processing unit 50 just can start or the execution application operating according to described instruction.Therefore, just can realize that by speech dialogue system in the above-mentioned car user carries out the function of vehicular applications operation by voice, thereby greatly reduce the complicated operation degree of user when realizing that vehicle-mounted function is used.And, improved drive security and the experience of driving.
With reference to shown in Figure 2, a kind of embodiment of speech dialogue system in the car according to the present invention, described voice-input unit 10 can be microphone.
Described speech conversion unit 20 can comprise:
Described instruction recognition unit 40 can comprise:
Application operating recognition unit 402, the operational order text of the phonetic feature information matches of search and 20 conversions of speech conversion unit from storage unit 30 when searching the operational order text of coupling, forms corresponding application operating instruction.
In conjunction with Fig. 2 and shown in Figure 3, a kind of implementation of described voice recognition unit 203 can comprise: phoneme extraction unit 203a, phoneme comparing unit 203b and phonetic feature information forming unit 203c;
Described phoneme extraction unit 203a is used for extracting phoneme of speech sound from described recording file;
Described phoneme comparing unit 203b compares the phoneme of speech sound that extracts and the phoneme of speech sound in the described speech recognition library 201, obtains corresponding comparison result;
Described phonetic feature information forming unit 203c, in the degree of confidence of comparison result when pre-seting reliability, determine the corresponding phoneme of speech sound coupling in the phoneme of speech sound that extracts and the described speech recognition library 201, and form phonetic feature information based on described corresponding phoneme of speech sound corresponding entries.
Described vehicular applications scene can comprise: phone scene, local music are play scene, broadcasting scenario, situational dialogues scene, booking service scene.
Be example with the phone application scene, the driver can import phonetic order by microphone and " phone Zhang San ".Can record described phonetic order in described recording unit 202, and be sent to described phoneme extraction unit 203a after forming recording file.Described phoneme extraction unit 203a can extract the phoneme of speech sound in the described recording file after obtaining described recording file.For example, described phoneme extraction unit 203a can extract the speech waveform in the described recording file.Usually, in order to increase the accuracy of speech recognition, also can carry out denoising earlier to described recording file, with the sound waveform of other outer frequency ranges of filtering people sound frequency.Described speech recognition library 201 can pre-deposit the speech waveform of some entry correspondences commonly used.For example, can deposit in works and expressions for everyday use, comprise the corresponding speech waveform of some session terms of vehicular applications operation.These works and expressions for everyday use and the corresponding speech waveform of session term usually with separately independently the speech waveform file deposit described speech recognition library 201 in, call respectively during with convenient follow-up comparison.
Described phoneme comparing unit 203b is behind the speech waveform that obtains to extract from described phoneme extraction unit 203a, will be with the speech waveform that extracts and each speech waveform comparison in the described speech recognition library 201, and after comparison, comparison result is sent to described phonetic feature information forming unit 203c.For example, described phoneme comparing unit 203b can will open with the corresponding speech waveform file of session term of vehicular applications operation in the described speech recognition library 201 one by one, and speech waveform and the described speech waveform that extracts that will be wherein compare one by one, obtains a plurality of comparison results.The degree of confidence that comprises the speech waveform that extracts and the speech waveform in the described speech recognition library 201 coupling in the described comparison result.
Described phonetic feature information forming unit 203c is after obtaining described comparison result, can resolve described comparison result and obtain described degree of confidence, when pre-seting reliability, determine the speech waveform that extracts and the corresponding speech waveform coupling in the described speech recognition library 201 in the degree of confidence of comparison result.For example, when " making a phone call " in the speech waveform that extracts and the described speech recognition library 201 reaches the corresponding degree of confidence of the comparison result of the corresponding speech waveform of " Zhang San " all when pre-seting reliability, described phonetic feature information forming unit 203c will think that the described speech waveform that extracts and " making a phone call " reach the corresponding speech waveform coupling of " Zhang San ", then comprise the entry that " making a phone call " reaches " Zhang San " in the speech waveform corresponding voice that described phonetic feature information forming unit 203c can determine to extract at this point, then described phonetic feature information forming unit 203c can " make a phone call described entry " to reach " Zhang San " and be converted to the phonetic feature information that comprises the object of making a phone call and make a phone call.
Next, described scene Recognition unit 401 and application operating recognition unit 402 will be identified the phonetic feature information of described voice recognition unit 203 conversions.Be similar to speech recognition library 201, also pre-deposited the scene instruction text of corresponding various vehicular applications scenes in the storage unit 30, and the operational order text of various application operatings under the corresponding described vehicular applications scene.Described scene Recognition unit 401 forms the enabled instruction of phone application scene according to described phonetic feature information of making a phone call.Described application operating recognition unit 402 forms the dialing instruction of the telephone number that comprises " Zhang San " according to the phonetic feature information of described object of making a phone call.
Then, after obtaining the enabled instruction of phone application scene, as the phone application unit starting of using processing unit, and dial according to the dialing instruction of the telephone number of " Zhang San ", operate to realize user and Zhang San's telephony applications.
Under other application scenarioss, speech dialogue system also can similarly be handled in the described car, by identifying instruction type and the command content that comprises in the user speech, to start and to carry out corresponding vehicular applications.
With reference to shown in Figure 3, the another kind of embodiment of speech dialogue system in the car according to the present invention, speech dialogue system is except each parts that comprises above-described embodiment in the described car, can also comprise Tip element 60, when instruction recognition unit 40 identifies described scene instruction text or described operational order text, to the described scene instruction text of user prompt or described operational order text.
Described Tip element 60 can be voice broadcast unit, for example vehicle audio.Still the phonetic order with aforementioned " phoning Zhang San " is example, and then when instruction recognition unit 40 forms phone application scene enabled instructions and dialing instruction, described Tip element just can be by the voice broadcast information: dial to Zhang San.Because the user can be known the implementation of application operating by described information, thereby has improved user's experience.
Described Tip element 60 also can be display unit, for example liquid crystal touch screen.Still the phonetic order with aforementioned " phoning Zhang San " is example, and then when instruction recognition unit 40 forms phone application scene enabled instructions and dialing instruction, described Tip element just can be to user's display reminding information: dial to Zhang San.Similarly, because the user can be known the implementation of application operating by described information, thereby improved user's experience.
In addition, speech dialogue system can also comprise response message storage unit 70 in the described car, described Tip element 60 is also according to the affirmation information of user based on described information feedback, the search response message corresponding with described scene instruction text or described operational order text from described response message storage unit 70, and to the described response message of user prompt.For example, the user is based on the aforementioned information that provides: dialling to Zhang San, send the voice of " affirmation " by microphone after, described Tip element 60 will be searched for the response message corresponding with the phone application scene from described response message storage unit 70, for example, described response message can for: be very glad for you provide the phone application service.By described response message, can strengthen the interaction of speech dialogue system in user and the car, further improve user's experience.
Accordingly, when described instruction recognition unit 40 failed to search the scene instruction text of coupling or operational order text, described Tip element 60 also can be to the information of user prompt recognition failures.
Can learn that the information of described response message and described recognition failures also can be presented to the user by the mode of demonstration or voice broadcast.
Among other embodiment of speech dialogue system, speech dialogue system can also comprise trigger element in the described car in car of the present invention, is used for starting speech dialogue system in the described car based on user's request.For example, the triggering button is set, when the user presses described triggering button, starts speech dialogue system in the described car.
In addition, speech dialogue system can also comprise timing unit in the described car, speech dialogue system starts the back timing in described car, when timing time reaches time threshold and voice-input unit does not receive voice during this, closes speech dialogue system in the described car.Thus, after speech dialogue system starts in described car, but the user is not when sending phonetic order for a long time, can save use cost to save energy resource consumption by closing in the described car speech dialogue system.
Though the present invention discloses as above with preferred embodiment, the present invention is defined in this.Any those skilled in the art without departing from the spirit and scope of the present invention, all can do various changes and modification, so protection scope of the present invention should be as the criterion with claim institute restricted portion.
Claims (15)
1. the interior speech dialogue system of car is characterized in that, comprising:
Voice-input unit is used for receiving voice;
The speech conversion unit, the voice that are used for receiving based on described voice-input unit form recording file, and extract phoneme of speech sound and identify from described recording file, and form phonetic feature information based on the phoneme of speech sound that identifies;
Storage unit is used for the corresponding scene instruction of the various vehicular applications scenes of storage text, and the corresponding operational order text of the application operating under the various scene;
The instruction recognition unit, the scene of the phonetic feature information matches of search and speech conversion cell translation instruction text from storage unit when searching the scene instruction text of coupling, forms corresponding scene enabled instruction; And from storage unit the operational order text of search and the phonetic feature information matches of speech conversion cell translation, when searching the operational order text of coupling, form corresponding application operating instruction;
Use processing unit, after the scene enabled instruction that obtains correspondence, start, and after obtaining corresponding application operating instruction, carry out application operating.
2. speech dialogue system in the car as claimed in claim 1 is characterized in that described speech conversion unit comprises:
Speech recognition library is used for the storaged voice phoneme;
The recording unit is used for receiving the voice that described voice-input unit receives, and forms recording file;
Voice recognition unit, the phoneme of speech sound that extracts in phoneme of speech sound and the described speech recognition library from described recording file is compared, when from described speech recognition library, obtaining the phoneme of speech sound of coupling, based on the phoneme of speech sound corresponding entries formation phonetic feature information of described coupling.
3. speech dialogue system in the car as claimed in claim 2 is characterized in that described voice recognition unit comprises: phoneme extraction unit, phoneme comparing unit and phonetic feature information forming unit;
Described phoneme extraction unit is used for extracting phoneme of speech sound from described recording file;
Described phoneme comparing unit is compared the phoneme of speech sound that extracts and the phoneme of speech sound in the described speech recognition library, obtains corresponding comparison result;
Described phonetic feature information forming unit, in the degree of confidence of comparison result when pre-seting reliability, determine the corresponding phoneme of speech sound coupling in the phoneme of speech sound that extracts and the described speech recognition library, and form phonetic feature information based on described corresponding phoneme of speech sound corresponding entries.
4. as speech dialogue system in claim 2 or the 3 described cars, it is characterized in that described phoneme of speech sound is speech waveform.
5. speech dialogue system in the car as claimed in claim 1 is characterized in that described instruction recognition unit comprises: scene Recognition unit and application operating recognition unit;
The scene Recognition unit, the scene of the phonetic feature information matches of search and speech conversion cell translation instruction text from storage unit when searching the scene instruction text of coupling, forms corresponding scene enabled instruction;
The application operating recognition unit, the operational order text of the phonetic feature information matches of search and speech conversion cell translation from storage unit when searching the operational order text of coupling, forms corresponding application operating instruction.
6. speech dialogue system in the car as claimed in claim 1, it is characterized in that, also comprise Tip element, when the instruction recognition unit identifies described scene instruction text or described operational order text, to the feedback information of the corresponding described scene instruction text of user prompt or described operational order text.
7. speech dialogue system in the car as claimed in claim 6, it is characterized in that, also comprise the response message storage unit, described Tip element is also according to the affirmation information of user based on described information feedback, the search response message corresponding with described scene instruction text or described operational order text from described response message storage unit, and to the described response message of user prompt.
8. speech dialogue system in the car as claimed in claim 6 is characterized in that, when described Tip element fails to search the scene instruction text of coupling or operational order text at the instruction recognition unit, to the information of user prompt recognition failures.
9. as speech dialogue system in each described car of claim 6 to 8, it is characterized in that described Tip element is the voice broadcast unit.
10. as speech dialogue system in each described car of claim 6 to 8, it is characterized in that described Tip element is display unit.
11. speech dialogue system in the car as claimed in claim 1 is characterized in that, also comprises trigger element, is used for starting speech dialogue system in the described car based on user's request.
12. speech dialogue system in the car as claimed in claim 11 is characterized in that, described trigger element is for triggering button.
13. speech dialogue system in the car as claimed in claim 11, it is characterized in that, also comprise timing unit, speech dialogue system starts the back timing in described car, when timing time reaches time threshold and voice-input unit does not receive voice during this, close speech dialogue system in the described car.
14. speech dialogue system in the car as claimed in claim 1 is characterized in that described vehicular applications scene comprises: phone scene, local music are play scene, broadcasting scenario, situational dialogues scene, booking service scene.
15. as speech dialogue system in claim 1 or the 13 described cars, it is characterized in that described voice-input unit is microphone.
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| CN2011104500050A CN103187061A (en) | 2011-12-28 | 2011-12-28 | Speech conversational system in vehicle |
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| CN2011104500050A CN103187061A (en) | 2011-12-28 | 2011-12-28 | Speech conversational system in vehicle |
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