CN103730119A - Vehicle-mounted man-machine voice interaction system - Google Patents
Vehicle-mounted man-machine voice interaction system Download PDFInfo
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Abstract
The invention provides a vehicle-mounted man-machine voice interaction system. The vehicle-mounted man-machine voice interaction system comprises a voice collection module, a voice purification module connected with the output end of the voice collection module, a voice processing method selection module connected with the output end of the voice purification module, a network module connected between the output end of the voice processing method selection module and the input end of a cloud server, a system terminal processor connected with the output end of the voice processing method selection module, the cloud server and a vehicle-mounted control unit module. The vehicle-mounted man-machine voice interaction system preferably selects the cloud server to carry out voice identification processing under the condition that wireless network signals are good in state in order to improve the accuracy and speed of voice identification, and can also start the system terminal processor when the wireless network signals are not good in order to keep normal work of the vehicle-mounted system.
Description
Technical field
The present invention relates to speech recognition technology field, be specifically related to a kind of vehicle-mounted man machine language's interactive system, be particularly useful for on-vehicle information amusement and information communication system.
Background technology
Along with develop rapidly and the people of automotive electronic technology are progressively heated up to the demand of automobile function variation, facilitation, hommization, on-vehicle information amusement and information communication system become the focus that automobile vendor pursues just gradually.On-vehicle information amusement and information communication system mainly comprise in-vehicle communication system, electronic navigation system (GPS), intelligent transportation system, In-vehicle networking, car audio system, vehicle entertainment system etc., these onboard systems are for more amusement, communication and mobile office function are provided to automobile, with the safety of automobile itself, power performance without direct relation.
Traditional onboard system often adopts button manipulation, although this control mode can guarantee its function, normally uses, and convenience and degree of safety are low.For example, when people is when driving, by button, manipulate onboard system and can cause dispersion attention, be difficult to answer road pavement special circumstances, cause traffic safety hidden danger.
The patent No. is that the Chinese patent of ZL201220115136.3 discloses " the man-machine man-machine interactive system of waking up of a kind of vehicle-mounted voice ", and it is in mobile unit, to insert voice wake module, and this voice wake module comprises that one for inputting the microphone of phonetic order; One master controller MCU and flash storer, master controller MCU is connected with the output terminal of vehicular control unit module and microphone, and flash memory stores has phonetic order information; In master controller MCU, have sound identification module and phonetic order execution module, sound identification module can extract the voice messaging of storing in flash storer and the voice messaging of inputting is compared, the voice messaging of identification of driver; Vehicle-mounted control functional unit block, by the control of voice command execution module, realizes its function.Above-mentioned disclosed technical scheme replaces traditional button to control onboard system by voice, convenience and degree of safety have been improved, but what speech recognition relied on is the built-in processor of onboard system, and recognition accuracy is low and recognition speed is slow, can not meet preferably people's user demand.
The patent No. is that the Chinese patent of ZL201220002430.3 discloses " a kind of vehicle-mounted man machine language's interactive system based on cloud computing " this system by the processing of speech recognition is delivered to cloud server, reduce the data processing load of local process chip, promoted accuracy and the recognition speed of speech recognition simultaneously.But cloud server is not in the situation that having network or network signal poor, cannot, to the wireless voice recognition processing that provides of onboard system, cause system cisco unity malfunction.
In view of the above, research and develop a kind of network signal restriction and accuracy of speech recognition is high, recognition speed is fast vehicle-mounted man machine language's interactive system of not being subject to and become industry urgent problem.
Summary of the invention
The object of the invention is to overcome weak point of the prior art, a kind of vehicle-mounted man machine language's interactive system is provided.
The object of the invention is to be achieved through the following technical solutions:
A kind of vehicle-mounted man machine language's interactive system, comprising:
Voice acquisition module;
Be connected with voice acquisition module output terminal, and for eliminating the noise of voice messaging and the voice purification module of echo;
Be connected with voice purification module output terminal, and for selecting module at Cloud Server or the system terminal processor speech processes mode of carrying out voice recognition processing of selecting;
Be connected in speech processes mode and select between module output terminal and Cloud Server input end, and the mixed-media network modules mixed-media for providing wireless network to connect;
Be connected in speech processes mode and select module output terminal, and the voice messaging of its transmission is generated for the exectorial system terminal processor of vehicular control unit module;
By coming from speech processes mode, select the voice messaging of module to generate for the exectorial Cloud Server of vehicular control unit module;
And receive and carry out order that Cloud Server or system terminal processor the transmit vehicular control unit module so that onboard system is regulated and controled.
The present invention adds end technology based on cloud, select processing mode best in Cloud Server and system terminal processor to carry out voice recognition processing, the principle that processing mode is chosen is: in the situation that wireless signal is good, the preferential Cloud Server that starts, to promote accuracy and the recognition speed of speech recognition; In the situation that wireless signal is bad, start system terminal processor and carry out voice recognition processing, make onboard system can maintain normal work.Principle of work of the present invention is as follows:
First, voice acquisition module is sent to voice purification module after user's operation voice are collected;
Secondly, voice purification module is eliminated noise and the echo in voice messaging, generates pure voice messaging and is sent to speech processes mode and select module; Finally, speech processes mode selects module to judge current signal condition of wireless network, and at Cloud Server and system terminal processor, selects one and carry out voice recognition processing;
When speech processes mode selects module to select Cloud Server to carry out voice recognition processing, mixed-media network modules mixed-media provides speech processes mode to select the wireless network between module and Cloud Server to connect, the clean speech information that Cloud Server can select module to transmit to speech processes mode is carried out voice recognition processing, generate fill order and be sent to vehicular control unit module by mixed-media network modules mixed-media, vehicular control unit module receives and carries out the order that Cloud Server transmits via mixed-media network modules mixed-media;
When speech processes mode selects module selective system terminal handler to carry out voice recognition processing, the clean speech information that system terminal processor can select module to transmit to speech processes mode is carried out voice recognition processing, the fill order of generation is sent to vehicular control unit module, the order that vehicular control unit module receives and executive system terminal handler transmits.
Concrete, described voice acquisition module comprises some microphones.
Concrete, mixed-media network modules mixed-media is built-in with wireless network connector, sets up wireless network be connected with Cloud Server.
Concrete, described voice purification module comprises noise processed module and echo processing module, the input end of described noise processed module is connected with the output terminal of voice acquisition module, the output terminal of noise processed module is connected with the input end of echo processing module, and the output terminal of echo processing module selects the input end of module to be connected with speech processes mode.
In order to guarantee that Cloud Server is with respect to system terminal processor, become preferred voice recognition processing mode, as further improvement technical scheme, described speech processes mode selects module to comprise:
Linking request issuing side, sends linking request to system terminal processor and Cloud Server respectively;
Network signal judge module, described network signal judge module is connected with mixed-media network modules mixed-media and system terminal processor respectively, for judging the signal(l)ing condition of Cloud Server, and result of determination is sent to speech processes mode execution module;
Speech processes mode execution module, is connected with the output terminal of network signal judge module, and the result of determination of sending according to network signal determination module is selected corresponding speech processes mode.
Speech processes mode selects module to judge that the specific works principle of Cloud Server signal(l)ing condition is as follows:
Linking request issuing side sends linking request to system terminal processor and Cloud Server simultaneously, after system terminal processor, Cloud Server and speech processes mode select module to establish the link, the successful signal of feedback link is to network signal judge module respectively, network signal judge module can be analyzed judgement to the signal of feedback, when the successful signal of the first back link of Cloud Server, network signal judge module judges that Cloud Server signal is good, and speech processes mode execution module can be selected the mode of Cloud Server as voice recognition processing; When the successful signal of the first back link of system terminal processor, network signal judge module can carry out etc. according to the predefined time period pending, if the successful signal of Cloud Server back link within the time period of waiting for, network signal judge module judges that Cloud Server signal is good, and speech processes mode execution module can be selected the mode of Cloud Server as voice recognition processing; If within the time period of waiting for, Cloud Server is the successful signal of back link not, and network signal judge module judges that Cloud Server signal is bad, and speech processes mode execution module meeting selective system terminal handler is as the mode of voice recognition processing.
As optimal technical scheme, described system terminal processor comprises:
Storer, is connected with voice analytics engine and semantic analytics engine respectively, and speech data and the semantic analytics engine semantic data for compare of voice analytics engine for comparing is provided;
Voice analytics engine, select the output terminal of module to be connected with speech processes mode, for speech processes mode being selected the clean speech information of module input and the speech data of memory stores compare, and the Word message of exporting speech data coupling is to semantic analytics engine;
Semantic analytics engine, is connected with the input end of vehicular control unit module, and the Word message that voice analytics engine is transmitted and the semantic data of memory stores compare, and export that semantic data mates control command to vehicular control unit module.
As optimal technical scheme, described Cloud Server comprises:
Be connected with voice analytics engine and semantic analytics engine respectively, and for the storer of the speech data of voice analytics engine for comparing and the semantic analytics engine semantic data for comparing is provided;
Select the output terminal of module to be connected with speech processes mode, for speech processes mode being selected the clean speech information of module input and the speech data of memory stores compare, and export the Word message of speech data coupling to the voice analytics engine of semantic analytics engine;
Be connected with the input end of vehicular control unit module, Word message and the semantic data of memory stores that voice analytics engine is transmitted compare, and export that semantic data mates control command to the semantic analytics engine of vehicular control unit module.
More specifically, described storer is flash storer.
The present invention has the following advantages and beneficial effect compared to existing technology:
(1) the invention provides two kinds of voice recognition processing modes of Cloud Server and system terminal processor, both can be in the situation that signal condition of wireless network be good, preferably the preferred Cloud Server of Cloud Server carries out voice recognition processing, to improve accuracy and the recognition speed of speech recognition, can in the situation that wireless network signal is bad, start again system terminal processor, maintain the normal work of onboard system;
(2) the present invention, by being provided for eliminating noise in voice messaging and the voice purification module of echo, has improved the accuracy of speech recognition;
(3) the present invention by arranging linking request issuing side in speech processes mode is selected module, network signal judge module and speech processes mode execution module have guaranteed that Cloud Server carries out the priority of voice recognition processing, is convenient to improve accuracy and the recognition speed of speech recognition;
(4) system terminal processor and Cloud Server are all provided with voice analytics engine, semantic analytics engine and have stored the speech data for comparing for voice analytics engine, with the storer of semantic analytics engine for the semantic data compared, the accuracy that has improved onboard system voice recognition processing.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but the embodiment of the invention is not limited to this.
As shown in Figure 1, the invention provides a kind of vehicle-mounted man machine language's interactive system, comprising: voice acquisition module; Be connected with voice acquisition module output terminal, and for eliminating the noise of voice messaging and the voice purification module of echo; Be connected with voice purification module output terminal, and for selecting module at Cloud Server or the system terminal processor speech processes mode of carrying out voice recognition processing of selecting; Be connected in speech processes mode and select between module output terminal and Cloud Server input end, and the mixed-media network modules mixed-media for providing wireless network to connect; Be connected in speech processes mode and select module output terminal, and the voice messaging of its transmission is generated for the exectorial system terminal processor of vehicular control unit module; By coming from speech processes mode, select the voice messaging of module to generate for the exectorial Cloud Server of vehicular control unit module; And receive and carry out order that Cloud Server or system terminal processor the transmit vehicular control unit module so that onboard system is regulated and controled.
Concrete, voice acquisition module comprises some microphones.
Voice purification module comprises noise processed module and echo processing module, the input end of noise processed module is connected with the output terminal of voice acquisition module, the output terminal of noise processed module is connected with the input end of echo processing module, and the output terminal of echo processing module selects the input end of module to be connected with speech processes mode.
Mixed-media network modules mixed-media is built-in with wireless network connector, sets up wireless network be connected with Cloud Server.
Sound processing mode selects module to comprise: linking request issuing side, sends linking request to system terminal processor and Cloud Server respectively; Network signal judge module, network signal judge module is connected with mixed-media network modules mixed-media and system terminal processor respectively, for judging the signal(l)ing condition of Cloud Server, and result of determination is sent to speech processes mode execution module; Speech processes mode execution module, is connected with the output terminal of network signal judge module, and the result of determination of sending according to network signal determination module is selected corresponding speech processes mode.
System terminal processor and Cloud Server include: storer, be connected with voice analytics engine and semantic analytics engine respectively, and speech data and the semantic analytics engine semantic data for compare of voice analytics engine for comparing is provided; Voice analytics engine, select the output terminal of module to be connected with speech processes mode, for speech processes mode being selected the clean speech information of module input and the speech data of memory stores compare, and the Word message of exporting speech data coupling is to semantic analytics engine; Semantic analytics engine, is connected with the input end of vehicular control unit module, and the Word message that voice analytics engine is transmitted and the semantic data of memory stores compare, and export that semantic data mates control command to vehicular control unit module.Wherein storer is flash storer.
The above embodiment has only expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, under the premise of not departing from the present invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. vehicle-mounted man machine language's interactive system, is characterized in that: comprising:
Voice acquisition module;
Be connected with voice acquisition module output terminal, and for eliminating the noise of voice messaging and the voice purification module of echo;
Be connected with voice purification module output terminal, and for selecting module at Cloud Server or the system terminal processor speech processes mode of carrying out voice recognition processing of selecting;
Be connected in speech processes mode and select between module output terminal and Cloud Server input end, and the mixed-media network modules mixed-media for providing wireless network to connect;
Be connected in speech processes mode and select module output terminal, and the voice messaging of its transmission is generated for the exectorial system terminal processor of vehicular control unit module;
By coming from speech processes mode, select the voice messaging of module to generate for the exectorial Cloud Server of vehicular control unit module;
And receive and carry out order that Cloud Server or system terminal processor the transmit vehicular control unit module so that onboard system is regulated and controled.
2. vehicle-mounted man machine language's interactive system according to claim 1, is characterized in that: described speech processes mode selects module to comprise:
To system terminal processor and Cloud Server, send respectively the linking request issuing side of linking request;
Be connected with mixed-media network modules mixed-media and system terminal processor respectively, for judging the signal(l)ing condition of Cloud Server, and result of determination be sent to the network signal judge module of speech processes mode execution module;
Be connected with the output terminal of network signal judge module, and the result of determination of sending according to network signal determination module is selected the speech processes mode execution module of corresponding speech processes mode.
3. vehicle-mounted man machine language's interactive system according to claim 1 and 2, is characterized in that: described voice acquisition module comprises some microphones.
4. vehicle-mounted man machine language's interactive system according to claim 1 and 2, is characterized in that: described mixed-media network modules mixed-media is built-in with wireless network connector, sets up wireless network be connected with Cloud Server.
5. vehicle-mounted man machine language's interactive system according to claim 1 and 2, it is characterized in that: described voice purification module comprises noise processed module and echo processing module, the input end of described noise processed module is connected with the output terminal of voice acquisition module, the output terminal of noise processed module is connected with the input end of echo processing module, and the output terminal of echo processing module selects the input end of module to be connected with speech processes mode.
6. vehicle-mounted man machine language's interactive system according to claim 1 and 2, is characterized in that: described system terminal processor comprises:
Be connected with voice analytics engine and semantic analytics engine respectively, the storer of the speech data of voice analytics engine for comparing and the semantic analytics engine semantic data for comparing is provided;
Select the output terminal of module to be connected with speech processes mode, for speech processes mode being selected the clean speech information of module input and the speech data of memory stores compare, and export the Word message of speech data coupling to the voice analytics engine of semantic analytics engine;
Be connected with the input end of vehicular control unit module, Word message and the semantic data of memory stores that voice analytics engine is transmitted compare, and export that semantic data mates control command to the semantic analytics engine of vehicular control unit module.
7. vehicle-mounted man machine language's interactive system according to claim 1 and 2, is characterized in that: described Cloud Server comprises:
Be connected with voice analytics engine and semantic analytics engine respectively, the storer of the speech data of voice analytics engine for comparing and the semantic analytics engine semantic data for comparing is provided;
Select the output terminal of module to be connected with speech processes mode, for speech processes mode being selected the clean speech information of module input and the speech data of memory stores compare, and export the Word message of speech data coupling to the voice analytics engine of semantic analytics engine;
Be connected with the input end of vehicular control unit module, the Word message that voice analytics engine is transmitted and the semantic data of memory stores compare, and export the control command of semantic data coupling to the semantic analytics engine of vehicular control unit module.
8. vehicle-mounted man machine language's interactive system according to claim 6, is characterized in that: described storer is flash storer.
9. vehicle-mounted man machine language's interactive system according to claim 7, is characterized in that: described storer is flash storer.
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