CN102322866A - Navigation method and system based on natural speech recognition - Google Patents
Navigation method and system based on natural speech recognition Download PDFInfo
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Abstract
The invention discloses a navigation method and a system based on natural speech recognition, which relates to the communication field. As long as one key is pressed, the system can be connected to a cloud computing platform server of a network side through terminal equipment, and speech recognition is carried out through the cloud computing platform server, wherein a speaker-independent speech recognition technology and a natural speech recognition technology are adopted by the cloud computing platform server to carry out the speech recognition on navigation position speech information input by a user to get a navigation destination address, and the navigation destination address is sent to the terminal equipment through automatic navigation control information so as to enable the terminal equipment to automatically start a navigation function according to the automatic navigation control information to acquire the navigation result of the navigation destination address from a navigation server, and the result is displayed to the user. The technical scheme provided by the embodiment of the invention can be applied to a speech navigation system.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of air navigation aid and system based on natural-sounding identification.
Background technology
In the prior art; The user is general, and the method for manually control that adopts is carried out navigation operation; For example: the user manually clicks the display screen or the button of navigator; Through display screen or button input navigation purpose address, obtain the navigation way information of current location to the navigation purpose address through navigational system.Yet in the process of user's steering vehicle, manual operation need be diverted sb.'s attention on the navigation terminal, and the energy of meeting dispersion user makes the danger of user's steering vehicle strengthen greatly.
For solving the problems of the technologies described above; Prior art discloses some Voice Navigation technology, and for different language, the audio recognition method that the Voice Navigation technology is adopted has nothing in common with each other; For example: for English; Word in the sentence constitutes by the letter in 26 alphabets, and when carrying out the Voice Navigation service, speech guide system need be discerned the syntactic structure of letter in the statement and sentence; Just can identify the corresponding text message of voice messaging, thereby operate according to the navigation Service that the text message that this identifies is correlated with.
Chinese is with English maximum difference; Chinese character quantity is bigger; At present, the sum of Chinese character has surpassed 80,000, wherein about nearly 3500 words of Chinese characters in common use; In the face of huge Chinese character storehouse like this, traditional Chinese speech airmanship adopts the audio recognition method based on keyword to carry out speech recognition.The voice content that speech guide system need send the user from the beginning to the end by in the mode of character/word and the vocabulary in advance the stored text content mate one by one; When having only certain bar text content of storing in voice content and the vocabulary to mate fully; Speech guide system just can identify the implication of the voice content of user's transmission; Successfully carry out speech recognition, and the navigation Service of being correlated with according to the content that identifies, otherwise; The speech recognition failure, speech guide system can't provide navigation Service for the user.
Yet; In the life of reality; The Chinese language expression form is diversified, and everyone or same people have nothing in common with each other in the statement of different times for same things, and for example: navigating to " Tian'anmen Square " just has following several kinds of form of presentations: how to get to may I ask the Tian'anmen Square; I think the Tian'anmen Square; From how to get to driving to Tian An-men here; Be with me to Tian'anmen Square or the like.In order to improve the speech recognition success ratio and the accuracy rate of speech guide system; The speech guide system needs all store all expression forms of same things in the vocabulary as much as possible, and this makes the vocabulary scale very huge, safeguard inconvenient; And because vocabulary is in large scale; It is slower to make that speech guide system carries out the speed of speech recognition, thereby makes that the Voice Navigation service delay is bigger, and it is relatively poor that the user carries out the service experience of Voice Navigation service.In addition; Because people's language expression form varies; Along with development of times, the language performance mode is also being brought in constant renewal in, can't be in vocabulary all expression forms of the same things of limit; The feasible success ratio that adopts the keyword mode to carry out speech recognition is lower, and then makes speech guide system normal navigation Service to be provided for the user.
At application number is to disclose the technical scheme relevant with speech recognition in the Chinese patents such as CN00130067.9, CN03123123.3 and CN03138149.9; Yet technique scheme can only be carried out phonetic synthesis or speech conversion is become literal; And can't realize speech conversion is become the identification of Word message; Make above technical scheme can't be applied in the Voice Navigation technology, realize the Voice Navigation service; And; Technique scheme designs to English speech recognition; Can know according to above analysis; English language and Chinese language differ widely from word quantity and taxeme, also can't carry out effective recognition to Chinese even make technique scheme be applied in the Voice Navigation service, and the success ratio of speech recognition is lower; At application number is in the Chinese patent of CN99813093.1; A kind of interactive user interface that adopts speech recognition and natural language processing is disclosed; Though can realize speech conversion is become the identification of Word message; Yet this technical scheme also is to design to english language, in the process of carrying out speech recognition, needs to consider the influence of factors such as grammer, still can't be applied in effectively in the Chinese speech navigation Service.
Summary of the invention
For solving the problems of the technologies described above; Embodiments of the invention provide a kind of air navigation aid and system based on natural-sounding identification; Can improve the Chinese speech recognition speed; And the success ratio of speech recognition, and then improve the service experience that Voice Navigation reliability of service and user use the Voice Navigation service.
A kind of navigational system based on natural-sounding identification comprises: one-touch control device, terminal device and cloud computing platform server;
Said one-touch control device; Be installed on the fixed part of vehicle; Be used for after the user presses start key; Connect through direct or short haul connection mode and said terminal device, and drive said terminal device and said cloud computing platform server connects through direct or short haul connection mode;
Said terminal device; After being used for connecting, connect, receive the navigation position voice messaging that the user sends through voice call exchange network or multiple radio data network and said cloud computing platform server with said one-touch control device; Said navigation position voice messaging is sent to said cloud computing platform server; Receive the self-navigation control information that comprises the navigation purpose address that said cloud computing platform server returns, start navigation feature, connect with navigation server according to this self-navigation control information; Obtain the navigation results of said navigation purpose address from said navigation server, this navigation results is shown to said user;
Said cloud computing platform server is positioned at network side, comprising:
The unspecified person sound identification module is used for the navigation position voice messaging that said terminal device sends is discerned, resolved, and obtains this navigation position voice messaging word information relates;
The natural-sounding identification module; Be used to adopt the dictionary that is provided with in advance that the Word message that said unspecified person sound identification module obtains is carried out word segmentation processing; Obtain the word that said Word message comprises, search point of interest POI database, obtain the highest target P OI information of word match degree that comprises with said Word message according to the word that said Word message comprises; Wherein, said dictionary is used to store the target word of pending speech recognition;
Communication module is used to obtain the corresponding navigation purpose address of target P OI information that the nature sound identification module obtains, and said navigation purpose address is carried at sends to said terminal device in the self-navigation control information.
A kind of air navigation aid based on natural-sounding identification; Comprise: press the user after the startup button of one-touch control device; Said one-touch control device connects through direct or short haul connection mode and terminal device; Wherein, said one-touch control device is arranged on the fixed position of vehicle, directly or through the cloud computing platform server that the short haul connection mode drives said terminal device and network side connects; Said terminal device is set up voice conversation through voice call exchange network or multiple radio data network with said cloud computing platform server and is connected; Said terminal device receives the navigation position voice messaging that said user sends, and said navigation position voice messaging is sent to said cloud computing platform server; Said cloud computing platform server adopts the unspecified person speech recognition technology that said navigation position voice messaging is discerned, resolved, and obtains said navigation position voice messaging word information relates; Said cloud computing platform server adopts the dictionary that is provided with in advance that said Word message is carried out word segmentation processing, obtains the word that said Word message comprises, and wherein, said dictionary is used to store the target word of pending speech recognition; The POI database searched in the word that said cloud computing platform server comprises according to said Word message, from said POI database, obtains the highest target P OI information of word match degree that comprises with said Word message; Said cloud computing platform server obtains the corresponding navigation purpose address of said target P OI information, this navigation purpose address is carried at sends to said terminal device in the self-navigation control information; Said terminal device starts navigation feature according to said self-navigation control information, connects with navigation server, obtains the navigation results of said navigation purpose address from said navigation server, and this result is shown to said user.
Air navigation aid and system that the embodiment of the invention provides based on natural-sounding identification; After the user presses the start key that is arranged on the one-touch control device on the steering wheel for vehicle; Terminal device is set up voice conversation with the cloud computing platform server and is connected, and system carries out the automatic speech navigational state.When the user passes through terminal device when the cloud computing platform server sends the navigation position voice messaging; The cloud computing platform server can adopt the unspecified person speech recognition technology that the navigation position voice messaging is discerned parsing earlier; Obtain corresponding text message; The word that adopts Word message to comprise then carries out information matches; The target P OI information that the POI information that the word match degree that comprises with Word message in the POI database is the highest obtains as the identification to the navigation position voice messaging; The cloud computing platform server need not mate the navigation position voice messaging that the user sends fully can obtain target P OI information, has improved the success ratio of Chinese speech identification, and then has improved the service experience that Voice Navigation reliability of service and user use the Voice Navigation service.Having solved prior art adopts and voice messaging to be carried out complete matching process carries out speech recognition; Cause owing to form of presentation is inconsistent and make the speech recognition failure, the speech recognition success ratio is low, causes the Voice Navigation reliability of service poor; The user uses the bad problem of service experience of Voice Navigation service; Because the cloud computing platform server adopts the mode of word match to carry out speech recognition in the technical scheme that provides of the embodiment of the invention, only need in dictionary, store the target word and in the POI database storage standards POI information get final product, need not store multi-form text messages in a large number according to the language expression mode to same things; Dictionary and POI data of database scale are less; Be convenient to search, and then improved speech recognition speed, solved prior art need be in vocabulary be stored a large amount of different expression forms to same things text message; Cause vocabulary in large scale; Be not easy to search, the speed of carrying out speech recognition is slower, causes the Voice Navigation service system to postpone bigger problem.The natural-sounding recognition technology that the cloud computing platform server adopts in the technical scheme that the embodiment of the invention provides is different from English speech recognition technology; This natural-sounding recognition technology is big to Chinese language literal amount; Word links up, does not have the characteristics of pausing in the statement; Employing is to the statement participle, and carries out speech recognition according to the mode that word is searched, and is higher to the success ratio and the recognition speed of Chinese speech recognition.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The navigational system structural representation one that Fig. 1 provides for the embodiment of the invention based on natural-sounding identification;
The navigational system structural representation two that Fig. 2 provides for the embodiment of the invention based on natural-sounding identification;
The air navigation aid process flow diagram one that Fig. 3 provides for the embodiment of the invention based on natural-sounding identification;
The process flow diagram one that Fig. 4 provides for the embodiment of the invention shown in Figure 3 based on the air navigation aid step 306 of natural-sounding identification;
The flowchart 2 that Fig. 5 provides for the embodiment of the invention shown in Figure 3 based on the air navigation aid step 306 of natural-sounding identification;
The air navigation aid flowchart 2 that Fig. 6 provides for the embodiment of the invention based on natural-sounding identification.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
In order to solve the lower problem of Chinese speech navigation Service system voice recognition success rate of prior art, the embodiment of the invention provides a kind of air navigation aid and system based on natural-sounding identification.
Navigational system based on natural-sounding identification as shown in Figure 1, that the embodiment of the invention provides comprises: one-touch control device 101, terminal device 102 and cloud computing platform server 103;
One-touch control device 101; Be installed on the fixed part of vehicle; Be used for after the user presses start key; Connect through direct or short haul connection mode and terminal device 102, and drive terminal device 102 through direct or short haul connection mode and connect with cloud computing platform server 103;
Cloud computing platform server 103 is positioned at network side, comprising:
Unspecified person sound identification module 1031 is used for the navigation position voice messaging that terminal device 102 sends is discerned, resolved, and obtains this navigation position voice messaging word information relates;
Natural-sounding identification module 1032; Be used to adopt the dictionary that is provided with in advance that the Word message that unspecified person sound identification module 1031 obtains is carried out word segmentation processing, obtain the word that this literal packets of information contains, search point of interest (Point of Interest according to the word that Word message comprises; POI) database; Obtain the highest target P OI information of word match degree that comprises with Word message, wherein, dictionary is used to store the target word of pending speech recognition;
In the present embodiment; The target word of storing in the dictionary can be the word of broad scope, particularly, can from the information that daily life and work can touch, obtain the target word and form dictionary; For example: can from the information of news report every day, extract word, form dictionary; The target word of storing in the dictionary also can be the word of narrow sense scope, and particularly, the POI information that can from the POI database, store is obtained the target word and formed dictionary.Need to prove that no matter be the word of broad scope or the word of narrow sense scope, the target word in the dictionary all is unique, does not repeat between each target word.
In order to reduce the amount of redundancy of target word in the dictionary, save storage space, improve the speed of speech recognition; The embodiment of the invention preferably target word in the dictionary is set to the narrow sense scope word that is provided with according to the POI database; But be not limited to above-mentioned set-up mode, well known to a person skilled in the art to be, for applied each industry field of this recognition technology; The technician of said industry all can rationally be provided with its POI database according to its industry characteristic.
In the present embodiment; Natural-sounding identification module 1032 can be searched dictionary according to the Word message that unspecified person sound identification module 1031 obtains, and the word in the Word message is mated according to the target word that comprises in appearance order and the dictionary, when finding the word that matees fully with the target word; This word is split from Word message; Continue the above-mentioned action of searching of circulation, till the last character in Word message, thereby realize word segmentation processing Word message.
Need to prove that in order to improve the speed of calling data, accelerate speech recognition speed, preferably, in the present embodiment, POI database and dictionary all are stored in (Fig. 1 is not shown) in the cloud computing platform server 103.
Further, in the present embodiment, natural-sounding identification module 1032 can obtain the highest target P OI information of word match degree that comprises with Word message through dual mode from the POI database, introduces respectively in the face of this dual mode down:
1, weight coefficient judgement method
Natural-sounding identification module 1032 also is used to store target word corresponding weight grade n and weight rate range N if specifically be used for dictionary, obtains the corresponding weight grade of each word that Word message comprises according to dictionary; The POI database searched in word according to Word message comprises, from the POI information database, obtains the POI ensemble of communication that the POI information of any one or more word match that comprise with Word message is formed, the corresponding weight grade of each word that comprises according to Word message; Every POI information in the POI ensemble of communication is handled respectively, obtains the weight coefficient of every POI information, and the POI information that the weight selection coefficient is the highest from the POI ensemble of communication is target P OI information; Wherein, N, N are integer, N >=2, n ∈ [1; N]; It is big that the importance of target word in said Word message of n level gets the importance of target word in said Word message than the n+1 level, and certainly, the relation of its importance and weight grade n also can be opposite; Those skilled in the art can oneself define as required, and this embodiment carries out example according to the former.
In the present embodiment, natural-sounding identification module 1032 can adopt the weighted mean algorithm to obtain the weight coefficient of every information, can certainly adopt other algorithms to obtain the weight information of every information, does not give unnecessary details one by one here.
Need to prove; In order to guarantee the accuracy of the target P OI information that natural-sounding identification module 1032 obtains, improve the speech recognition quality, in the present embodiment; Should comprise at least one weight grade in the word after 1032 pairs of Word message participles of natural-sounding identification module and be 1 word; If after word segmentation processing, not having the weight grade in the word that Word message comprises is 1 word, and then the natural-sounding identification module 1032; Also be used for again Word message being carried out word segmentation processing, obtain at least one weight grade and be 1 word.
Further, natural-sounding identification module 1032, also being used for above-mentioned at least one weight grade of obtaining is that 1 word adds dictionary to.
Need to prove; The embodiment of the invention is carried out concrete giving an example to the division of weight grade height, the height attribute of weight grade can also be set, for example: when the weight rate range is 3 in the use of reality through other rules; The weight grade can be set be 3 the highest; The weight grade is 1 minimum, and above method is that those skilled in the art can associate under the prerequisite of not paying creative work easily, gives unnecessary details no longer one by one here.
2, the nested method of searching
Natural-sounding identification module 1032; Specifically be used for the word that Word message comprises is sorted; Result according to ordering; From the word that Word message comprises, obtain first word to be found, from the POI information database, obtain the POI information with first word match to be found, from the word that Word message comprises, obtain second word to be found; From the POI ensemble of communication of forming with the POI information of first word match to be found, obtain POI information with second word match to be found; By that analogy, from the word that Word message comprises, obtain last word to be found, from the POI ensemble of communication that the POI information of a last word match adjacent with said last word to be found is formed, obtain target P OI information with last word match to be found.
In the present embodiment; Natural-sounding identification module 1032 can sort word according to the sequencing that in Word message, occurs; Preferably; In order to improve seek rate, natural-sounding identification module 1032 can obtain the keyword in the word that Word message comprises earlier, and the word that then Word message is comprised sorts according to the order of keyword, the auxiliary speech in back and preceding auxiliary speech.
Wherein, keyword is to have the proprietary word that refers to meaning, and the auxiliary speech in back is to be positioned at keyword word afterwards in the Word message, and preceding auxiliary speech is to be positioned at keyword word before in the Word message.
In the present embodiment; Cloud computing platform server 103 (being specially natural-sounding identification module 1032) can be provided with antistop list in advance; This antistop list can be according to canned data setting in the POI database; Natural-sounding identification module 1032 is searched antistop list respectively to each word that is comprised after obtaining the word that Word message comprises, obtain with antistop list in the word of the keyword coupling of storing be the keyword that Word message comprises.
Need to prove that if after searching, know in the word that Word message comprises and do not have keyword, then natural-sounding identification module 1032 sorts according to the sequencing that word occurs in Word message; Further; If after searching, know and comprise two above keywords in the Word message; Then the auxiliary speech in back is the later non-key speech of first keyword in the word that comprises of Word message, and natural-sounding identification module 1032 still sorts according to the order of keyword, the auxiliary speech in back and preceding auxiliary speech.
Natural-sounding identification module 1032 assists the order of speech and preceding auxiliary speech to sort through the word that Word message is comprised according to keyword, back; Make and follow-uply search when coupling according to word order; Keynote message is outstanding; Can significantly shorten the time that coupling searched in word, improve the speed of speech recognition.
Need to prove; If natural-sounding identification module 1032 does not find the information with current word match to be found; Match information that then can current word to be found is set to the information of a last to be found word match adjacent with this current word to be found; If current word to be found is first word to be found, then the information of this first word match to be found is the POI information that comprises in the whole POI database.
In order to make those skilled in the art more deep understanding arranged, through concrete example nested concrete realization of searching method is described below the above-described nested method of searching:
For example: resolving the Word message that the back obtains when the navigation position voice messaging of user input through identification is: during the little fertile sheep chafing dish restaurant in anise East Road, Shijingshan District, Beijing, the word that the Word message that obtains after natural-sounding identification module 1032 word segmentation processing comprises can be Beijing, Shijingshan District; Anistree; The East Road, little fertile sheep, chafing dish restaurant; If little fertile sheep is a keyword, then be: little fertile sheep according to keyword, the auxiliary speech in back and preceding auxiliary speech ordering; Chafing dish restaurant, Beijing, Shijingshan District, anise; The East Road is when the POI database comprises: little fertile sheep supermarket, Beijing, ancient city, Shijingshan District Lu Xiaofei sheep chafing dish restaurant, Donglaishun, Beijing chafing dish restaurant; Donglaishun, anistree North Road, Beijing chafing dish restaurant is during information such as the anistree little fertile sheep chafing dish restaurant in Beijing, according to the above-mentioned nested method of searching; At first, natural-sounding identification module 1032 obtains the POI information with " little fertile sheep " coupling from the POI database, form a POI information bank; The one POI information bank comprises: little fertile sheep supermarket, Beijing, ancient city, Shijingshan District Lu Xiaofei sheep chafing dish restaurant, the anistree little fertile sheep chafing dish restaurant in Beijing; Then, from a POI information bank, obtain the POI information of mating, form the 2nd POI information bank with " chafing dish restaurant "; The 2nd POI information bank comprises: ancient city, Shijingshan District Lu Xiaofei sheep chafing dish restaurant, the anistree little fertile sheep chafing dish restaurant in Beijing, the 3rd; From the 2nd POI information bank, obtain the POI information of mating with " Beijing ", form the 3rd POI information bank, the 3rd POI information bank comprises: the anistree little fertile sheep chafing dish restaurant in Beijing; The 4th, from the 3rd POI information bank, obtain the POI information of mating with " anise ", form the 4th POI information bank; The 4th POI information bank comprises: the anistree little fertile sheep chafing dish restaurant in Beijing; The 5th, from the 4th POI information bank, obtain the target P OI information of mating, owing to the POI information that does not have in the 4th POI information bank to mate with " East Road " with " East Road "; So target P OI information is the POI information that comprises in the 4th POI information bank, i.e. the anistree little fertile sheep chafing dish restaurant in Beijing.
Through above-described weight coefficient judgement method and the nested method of searching, natural-sounding identification module 1032 can find the highest target P OI information of word match degree that comprises with text message exactly, realizes the identification to the voice messaging of user's input.Certainly, in the use of reality, the highest target P OI information of word match degree that natural-sounding identification module 1032 can also adopt other modes to obtain to comprise with text message is not given unnecessary details here one by one.
Communication module 1033 is used to obtain the corresponding navigation purpose address of target P OI information that nature sound identification module 1032 obtains, and this navigation purpose address is carried at sends to terminal device 102 in the self-navigation control information.
Further; If natural-sounding identification module 1032 has been chosen two above target P OI information; In order to improve the accurately fixed, as shown in Figure 1 of speech recognition, terminal device 102; Can also be used to receive two above target P OI information that cloud computing platform server 103 sends; These two above target P OI information are shown to the user, receive the user and choose indication, POI information is chosen indication send to cloud computing platform server 103 according to the POI information of said two above target P OI information transmissions;
Particularly, terminal device 102 can receive the POI information that the user sends through modes such as voice or button or literal inputs and choose indication.Need to prove; If the user sends POI information through voice mode and chooses indication; Then 1031 pairs of these POI information of cloud computing platform server 103 needs employing unspecified person sound identification modules are chosen to indicate and are discerned, resolve, and obtain control instruction corresponding.
Cloud computing platform server 103; Find two above target P OI information if can also be used for natural-sounding identification module 1032; Said communication module sends to terminal device 102 with said two above target P OI information; The POI information that receiving terminal apparatus 102 returns is chosen indication, chooses indication according to this POI information and from two above target P OI information, chooses selected objective target POI information, and obtain the corresponding navigation purpose address of this selected objective target POI information.
Perhaps, as shown in Figure 2, cloud computing platform server 103 also comprises:
Statistical module 1034 is used for navigation data and adds up, and preserves the navigation data statistics;
In the present embodiment, statistical module 1034 can be added up the POI information that the user carries out speech recognition at every turn, and this statistics can be to the specific user individual, also can be to specific user colony.Further; This speech recognition statistics can be that one or more target P OI information of user is carried out the number of times of speech recognition or the result of frequency statistics; It also can be the statistics of a plurality of users being carried out for the last time the target P OI information of speech recognition; Certainly can also not give unnecessary details one by one for other statisticses relevant with speech recognition here.
Communication module 1033; Find two above target P OI information if can also be used for natural-sounding identification module 1032; Obtain the navigation data statistics from statistical module 1034; From two above target P OI information, choose selected objective target POI information according to this navigation data statistics, and obtain the corresponding navigation purpose address of this selected objective target POI information.
For example: when the navigation data statistics for the number of times that a plurality of target P OI information of user are carried out speech recognition add up as a result the time; If the corresponding text message of navigation position voice messaging of user's input is little fertile sheep chafing dish restaurant; Natural-sounding identification module 1032 has obtained 3 target POI information; Comprise: the little fertile sheep chafing dish restaurant in Haidian District, the little fertile sheep chafing dish restaurant in Zhong Guan-cun, Haidian District is during the little fertile sheep chafing dish restaurant in anistree East Road, Shijingshan; Communication module 1033 can be obtained the corresponding speech recognition statistics navigation data statistics of said 3 target POI information; Carry out speech recognition 3 times like " the little fertile sheep chafing dish restaurant in Haidian District ", " the little fertile sheep chafing dish restaurant in Zhong Guan-cun, Haidian District " carries out speech recognition 5 times, and " the little fertile sheep chafing dish restaurant in anistree East Road, Shijingshan " carries out speech recognition 40 times; Then communication module 1033 can be chosen " the little fertile sheep chafing dish restaurant in anistree East Road, Shijingshan " and be selected objective target POI information according to statistics from 3 target POI information.
Alternatively, in order further to shorten the time of speech recognition, improve speech recognition speed; In the present embodiment, natural-sounding identification module 1032 can also be used for searching spoken dictionary according to the word that Word message comprises; According to lookup result, from the word that Word message comprises, delete spoken word, wherein; Spoken dictionary is used to store spoken word, does not comprise the Word message that has substantive implication in the navigation position voice messaging that relates to user's input in the spoken word.
In the present embodiment; Can adopt the method for statistics that spoken dictionary is set in advance; Can comprise people's spoken word used in everyday in this spoken language dictionary; For example: " I think ", " I want ", " may I ask ", " being ", " right ", " can " and " how " or the like, the spoken word that comprises in the spoken word storehouse is not given unnecessary details one by one here.
The navigational system that the embodiment of the invention provides based on natural-sounding identification; After the user presses the start key that is arranged on the one-touch control device on the steering wheel for vehicle; Terminal device is set up voice conversation with the cloud computing platform server and is connected, and system carries out the automatic speech navigational state.When the user passes through terminal device when the cloud computing platform server sends the navigation position voice messaging; The cloud computing platform server can adopt the unspecified person speech recognition technology that the navigation position voice messaging is discerned parsing earlier; Obtain corresponding text message; The word that adopts Word message to comprise then carries out information matches; The target P OI information that the POI information that the word match degree that comprises with Word message in the POI database is the highest obtains as the identification to the navigation position voice messaging; The cloud computing platform server need not mate the navigation position voice messaging that the user sends fully can obtain target P OI information, has improved the success ratio of Chinese speech identification, and then has improved the service experience that Voice Navigation reliability of service and user use the Voice Navigation service.Having solved prior art adopts and voice messaging to be carried out complete matching process carries out speech recognition; Cause owing to form of presentation is inconsistent and make the speech recognition failure, the speech recognition success ratio is low, causes the Voice Navigation reliability of service poor; The user uses the bad problem of service experience of Voice Navigation service; Because the cloud computing platform server adopts the mode of word match to carry out speech recognition in the technical scheme that provides of the embodiment of the invention, only need in dictionary, store the target word and in the POI database storage standards POI information get final product, need not store multi-form text messages in a large number according to the language expression mode to same things; Dictionary and POI data of database scale are less; Be convenient to search, and then improved speech recognition speed, solved prior art need be in vocabulary be stored a large amount of different expression forms to same things text message; Cause vocabulary in large scale; Be not easy to search, the speed of carrying out speech recognition is slower, causes the Voice Navigation service system to postpone bigger problem.The natural-sounding recognition technology that the cloud computing platform server adopts in the technical scheme that the embodiment of the invention provides is different from English speech recognition technology; This natural-sounding recognition technology is big to Chinese language literal amount; Word links up, does not have the characteristics of pausing in the statement; Employing is to the statement participle, and carries out speech recognition according to the mode that word is searched, and is higher to the success ratio and the recognition speed of Chinese speech recognition.
As shown in Figure 3, the embodiment of the invention also provides a kind of air navigation aid based on natural-sounding identification, comprising:
Further; The air navigation aid based on natural-sounding identification that the embodiment of the invention provides can also comprise: if dictionary also is used to store target word corresponding weight grade n and weight rate range N; The cloud computing platform server obtains the corresponding weight grade of each word that Word message comprises according to said dictionary, and wherein, n, N are integer; N >=2; N ∈ [1, N], it is big that the importance of target word in said Word message of n level gets the importance of target word in Word message than the n+1 level;
Then as shown in Figure 4, step 306 can comprise:
Further; In order to improve the accuracy of speech recognition; The air navigation aid based on natural-sounding identification that the embodiment of the invention provides can also comprise: if there is not the weight grade in the word that Word message comprises is 1 word; The cloud computing platform server carries out word segmentation processing to Word message again, obtains at least one weight grade and be 1 word.
On this basis, the air navigation aid based on natural-sounding identification that provides of the embodiment of the invention can also comprise: the cloud computing platform server is that 1 word adds in the dictionary with at least one weight grade.
Further, as shown in Figure 5, step 306 can comprise:
Particularly, step 3064 can comprise: the cloud computing platform server obtains the keyword in the word that Word message comprises; The cloud computing platform server assists the order of speech and preceding auxiliary speech to sort according to keyword, back the word that Word message comprises; Wherein, the auxiliary speech in back is to be positioned at keyword word afterwards in the said Word message, and preceding auxiliary speech is to be positioned at keyword word before in the said Word message.
Need to prove that if two above keywords are arranged in the word that Word message comprises, the auxiliary speech in back is the later non-key speech of first keyword in the word that comprises of Word message.
By that analogy; Step 3067; The cloud computing platform server obtains last word to be found from the word that Word message comprises, from the POI ensemble of communication that the POI information of a last word match adjacent with last word to be found is formed, obtain the target P OI information with last word match to be found.
Further; If the air navigation aid based on natural-sounding identification that cloud computing platform whois lookup to two an above target P OI information in step 306, the embodiment of the invention provide can also comprise: the cloud computing platform server sends two above target P OI information to terminal device; Terminal device is shown to the user with two above target P OI information, receives the user and chooses indication according to the POI information of two above target P OI information transmissions; Terminal device is chosen indication with POI information and is sent to the cloud computing platform server; The cloud computing platform server is chosen indication according to POI information and from two above target P OI information, is chosen selected objective target POI information, and obtains the corresponding navigation purpose address of this selected objective target POI information.
Perhaps, the air navigation aid based on natural-sounding identification that provides of the embodiment of the invention can also comprise: the cloud computing platform server obtains the navigation data statistics; The cloud computing platform server is chosen selected objective target POI information according to the navigation data statistics from said two above target P OI information.
Alternatively, as shown in Figure 6 in order further to improve the speed that the cloud computing platform server carries out speech recognition, after step 305, before the step 306, can also comprise:
Step 309; Spoken dictionary searched in the word that the cloud computing platform server comprises according to Word message; According to lookup result, from the word that Word message comprises, delete spoken word, wherein; Spoken dictionary is used to store spoken word, does not comprise the Word message that has substantive implication in the voice messaging that relates to said user's input in the spoken word.
The concrete implementation procedure based on the air navigation aid of natural-sounding identification that the embodiment of the invention provides can be said referring to the navigational system based on natural-sounding identification that the embodiment of the invention provides, and repeats no more here.
The air navigation aid that the embodiment of the invention provides based on natural-sounding identification; After the user presses the start key that is arranged on the one-touch control device on the steering wheel for vehicle; Terminal device is set up voice conversation with the cloud computing platform server and is connected, and system carries out the automatic speech navigational state.When the user passes through terminal device when the cloud computing platform server sends the navigation position voice messaging; The cloud computing platform server can adopt the unspecified person speech recognition technology that the navigation position voice messaging is discerned parsing earlier; Obtain corresponding text message; The word that adopts Word message to comprise then carries out information matches; The target P OI information that the POI information that the word match degree that comprises with Word message in the POI database is the highest obtains as the identification to the navigation position voice messaging; The cloud computing platform server need not mate the navigation position voice messaging that the user sends fully can obtain target P OI information, has improved the success ratio of Chinese speech identification, and then has improved the service experience that Voice Navigation reliability of service and user use the Voice Navigation service.Having solved prior art adopts and voice messaging to be carried out complete matching process carries out speech recognition; Cause owing to form of presentation is inconsistent and make the speech recognition failure, the speech recognition success ratio is low, causes the Voice Navigation reliability of service poor; The user uses the bad problem of service experience of Voice Navigation service; Because the cloud computing platform server adopts the mode of word match to carry out speech recognition in the technical scheme that provides of the embodiment of the invention, only need in dictionary, store the target word and in the POI database storage standards POI information get final product, need not store multi-form text messages in a large number according to the language expression mode to same things; Dictionary and POI data of database scale are less; Be convenient to search, and then improved speech recognition speed, solved prior art need be in vocabulary be stored a large amount of different expression forms to same things text message; Cause vocabulary in large scale; Be not easy to search, the speed of carrying out speech recognition is slower, causes the Voice Navigation service system to postpone bigger problem.The natural-sounding recognition technology that the cloud computing platform server adopts in the technical scheme that the embodiment of the invention provides is different from English speech recognition technology; This natural-sounding recognition technology is big to Chinese language literal amount; Word links up, does not have the characteristics of pausing in the statement; Employing is to the statement participle, and carries out speech recognition according to the mode that word is searched, and is higher to the success ratio and the recognition speed of Chinese speech recognition.
Air navigation aid and system based on natural-sounding identification that the embodiment of the invention provides can be applied in the navigation field.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing 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 by said protection domain with claim.
Claims (19)
1. the navigational system based on natural-sounding identification is characterized in that, comprising: one-touch control device, terminal device and cloud computing platform server;
Said one-touch control device; Be installed on the fixed part of vehicle; Be used for after the user presses start key; Connect through direct or short haul connection mode and said terminal device, and drive said terminal device and said cloud computing platform server connects through direct or short haul connection mode;
Said terminal device; After being used for connecting, connect, receive the navigation position voice messaging that the user sends through voice call exchange network or multiple radio data network and said cloud computing platform server with said one-touch control device; Said navigation position voice messaging is sent to said cloud computing platform server; Receive the self-navigation control information that comprises the navigation purpose address that said cloud computing platform server returns, start navigation feature, connect with navigation server according to this self-navigation control information; Obtain the navigation results of said navigation purpose address from said navigation server, this navigation results is shown to said user;
Said cloud computing platform server is positioned at network side, comprising:
The unspecified person sound identification module is used for the navigation position voice messaging that said terminal device sends is discerned, resolved, and obtains this navigation position voice messaging word information relates;
The natural-sounding identification module; Be used to adopt the dictionary that is provided with in advance that the Word message that said unspecified person sound identification module obtains is carried out word segmentation processing; Obtain the word that said Word message comprises, search point of interest POI database, obtain the highest target P OI information of word match degree that comprises with said Word message according to the word that said Word message comprises; Wherein, said dictionary is used to store the target word of pending speech recognition;
Communication module is used to obtain the corresponding navigation purpose address of target P OI information that the nature sound identification module obtains, and said navigation purpose address is carried at sends to said terminal device in the self-navigation control information.
2. system according to claim 1 is characterized in that, said natural-sounding identification module; Also be used to store said target word corresponding weight grade n and weight rate range N if specifically be used for said dictionary; Obtain the corresponding weight grade of each word that said Word message comprises according to said dictionary, search the POI database, from said POI information database, obtain the POI ensemble of communication of the POI information composition of any one or more word match that comprise with said Word message according to the word that said Word message comprises; The corresponding weight grade of each word that comprises according to said Word message; Every POI information in the said POI ensemble of communication is handled respectively, obtains the weight coefficient of every POI information, and the highest POI information of weight selection coefficient is target P OI information from said POI ensemble of communication; Wherein, N, N are integer, N >=2, n ∈ [1; N], it is big that the importance of target word in said Word message of n level gets the importance of target word in said Word message than the n+1 level.
3. system according to claim 2; It is characterized in that, said natural-sounding identification module, not have the weight grade be 1 word if also be used for word that said Word message comprises; Again said Word message is carried out word segmentation processing, obtain at least one weight grade and be 1 word.
4. system according to claim 3 is characterized in that, said natural-sounding identification module, and also being used for said at least one weight grade is that 1 word adds said dictionary to.
5. system according to claim 1; It is characterized in that; Said natural-sounding identification module; Specifically be used for the word that said Word message comprises is sorted,, from the word that said Word message comprises, obtain first word to be found according to the result of said ordering; From said POI information database, obtain POI information with said first word match to be found; From the word that said Word message comprises, obtain second word to be found, from the POI ensemble of communication that the POI information of said and first word match to be found is formed, obtain the POI information with said second word match to be found, by that analogy; From the word that said Word message comprises, obtain last word to be found, from the POI ensemble of communication that the POI information of a last word match adjacent with said last word to be found is formed, obtain target P OI information with said last word match to be found.
6. system according to claim 5; It is characterized in that said natural-sounding identification module specifically is used for obtaining the keyword of the word that said Word message comprises; Assist the order of speech and preceding auxiliary speech to sort according to keyword, back the word that said Word message comprises; Wherein, the auxiliary speech in back is to be positioned at keyword word afterwards in the said Word message, and preceding auxiliary speech is to be positioned at keyword word before in the said Word message.
7. system according to claim 1 is characterized in that, said natural-sounding identification module; Also be used for searching spoken dictionary according to the word that said Word message comprises; According to lookup result, from the word that said Word message comprises, delete spoken word, wherein; Spoken dictionary is used to store spoken word, does not comprise the Word message that has substantive implication in the navigation position voice messaging that relates to said user's input in the said spoken word.
8. system according to claim 1 is characterized in that,
Said terminal device; Also be used to receive two above target P OI information that said cloud computing platform server sends; Said two above target P OI information are shown to said user; Receive the user and choose indication, said POI information is chosen indication send to said cloud computing platform server according to the POI information of said two above target P OI information transmissions;
Said cloud computing platform server; Find two above target P OI information if also be used for the natural-sounding identification module; Said communication module sends to said terminal device with said two above target P OI information; Receive the POI information that said terminal device returns and choose indication, choose indication according to this POI information and from said two above target P OI information, choose selected objective target POI information, and obtain the corresponding navigation purpose address of this selected objective target POI information.
9. system according to claim 1 is characterized in that, said cloud computing platform server also comprises:
Statistical module is used for navigation data and adds up, and preserves the navigation data statistics;
Said communication module; Find two above target P OI information if also be used for said natural-sounding identification module; Obtain the navigation data statistics from said statistical module; From said two above target P OI information, choose selected objective target POI information according to this navigation data statistics, and obtain the corresponding navigation purpose address of this selected objective target POI information.
10. the air navigation aid based on natural-sounding identification is characterized in that, comprising:
Press the user after the startup button of one-touch control device; Said one-touch control device connects through direct or short haul connection mode and terminal device; Wherein, Said one-touch control device is arranged on the fixed position of vehicle, directly or through the cloud computing platform server that the short haul connection mode drives said terminal device and network side connects;
Said terminal device is set up voice conversation through voice call exchange network or multiple radio data network with said cloud computing platform server and is connected;
Said terminal device receives the navigation position voice messaging that said user sends, and said navigation position voice messaging is sent to said cloud computing platform server;
Said cloud computing platform server adopts the unspecified person speech recognition technology that said navigation position voice messaging is discerned, resolved, and obtains said navigation position voice messaging word information relates;
Said cloud computing platform server adopts the dictionary that is provided with in advance that said Word message is carried out word segmentation processing, obtains the word that said Word message comprises, and wherein, said dictionary is used to store the target word of pending speech recognition;
The POI database searched in the word that said cloud computing platform server comprises according to said Word message, from said POI database, obtains the highest target P OI information of word match degree that comprises with said Word message;
Said cloud computing platform server obtains the corresponding navigation purpose address of said target P OI information, this navigation purpose address is carried at sends to said terminal device in the self-navigation control information;
Said terminal device starts navigation feature according to said self-navigation control information, connects with navigation server, obtains the navigation results of said navigation purpose address from said navigation server, and this result is shown to said user.
11. method according to claim 10 is characterized in that, said method also comprises:
If said dictionary also is used to store said target word corresponding weight grade n and weight rate range N; Said cloud computing platform server obtains the corresponding weight grade of each word that said Word message comprises according to said dictionary, and wherein, n, N are integer; N >=2; N ∈ [1, N], it is big that the importance of target word in said Word message of n level gets the importance of target word in said Word message than the n+1 level;
The POI database searched in the word that then said cloud computing platform server comprises according to said Word message, from said POI database, obtains the highest target P OI information of word match degree that comprises with said Word message and comprise:
The POI database searched in the word that said cloud computing platform server comprises according to said Word message, from said POI database, obtains the POI ensemble of communication of the POI information composition of any one or more word match that comprise with said Word message;
Said cloud computing platform server is handled respectively every POI information in the said POI ensemble of communication according to the corresponding weight grade of each word that said Word message comprises, and obtains the weight coefficient of every POI information;
Said cloud computing platform server the highest POI information of weight selection coefficient from said POI ensemble of communication is target P OI information.
12. method according to claim 11, its characteristic exists, and said method also comprises:
If not having the weight grade in the word that said Word message comprises is 1 word, said cloud computing platform server carries out word segmentation processing to said Word message again, obtains at least one weight grade and be 1 word.
13. method according to claim 12 is characterized in that, said method also comprises:
Said cloud computing platform server is that 1 word adds in the said dictionary with said at least one weight grade.
14. method according to claim 10; It is characterized in that; The POI database searched in the word that said cloud computing platform server comprises according to said Word message, from said POI database, obtains the highest target P OI information of word match degree that comprises with said Word message and comprise:
Said cloud computing platform server sorts to the word that said Word message comprises;
Said cloud computing platform server obtains first word to be found according to the result of said ordering from the word that said Word message comprises, from said POI database, obtain the POI information with said first word match to be found;
Said cloud computing platform server obtains second word to be found from the word that said Word message comprises, from the POI ensemble of communication that the POI information of said and first word match to be found is formed, obtain the POI information with said second word match to be found;
By that analogy; Said cloud computing platform server obtains last word to be found from the word that said Word message comprises, from the POI ensemble of communication that the POI information of a last word match adjacent with said last word to be found is formed, obtain the target P OI information with said last word match to be found.
15. method according to claim 14 is characterized in that, the word that said cloud computing platform server comprises said Word message sorts and comprises:
Said cloud computing platform server obtains the keyword in the word that said Word message comprises;
Said cloud computing platform server assists the order of speech and preceding auxiliary speech to sort according to keyword, back the word that said Word message comprises;
Wherein, the auxiliary speech in back is to be positioned at keyword word afterwards in the said Word message, and preceding auxiliary speech is to be positioned at keyword word before in the said Word message.
16. method according to claim 15 is characterized in that, if two above keywords are arranged in the word that said Word message comprises, the auxiliary speech in said back is the later non-key speech of first keyword in the word that comprises of said Word message.
17. method according to claim 10 is characterized in that, said method also comprises:
Spoken dictionary searched in the word that said cloud computing platform server comprises according to said Word message; According to lookup result; From the word that said Word message comprises, delete spoken word; Wherein, spoken dictionary is used to store spoken word, does not comprise the Word message that has substantive implication in the navigation position voice messaging that relates to said user's input in the said spoken word.
18. method according to claim 10 is characterized in that, said method also comprises:
If said cloud computing platform whois lookup to two an above target P OI information, said cloud computing platform server sends said two above target P OI information to said terminal device;
Said terminal device is shown to said user with said two above target P OI information, receives said user and chooses indication according to the POI information of said two above target P OI information transmissions;
Said terminal device is chosen indication with said POI information and is sent to said cloud computing platform server;
Said cloud computing platform server is chosen indication according to said POI information and from said two above target P OI information, is chosen selected objective target POI information, and obtains the corresponding navigation purpose address of this selected objective target POI information.
19. method according to claim 10 is characterized in that, said method also comprises:
If said cloud computing platform whois lookup to two an above target P OI information, said cloud computing platform server obtains the navigation data statistics;
Said cloud computing platform server is chosen selected objective target POI information according to said navigation data statistics from said two above target P OI information.
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