CN1933349A - Method for realizing vehicular blue-tooth hand free telephone dialing by blue-tooth and voice identification technology - Google Patents

Method for realizing vehicular blue-tooth hand free telephone dialing by blue-tooth and voice identification technology Download PDF

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Publication number
CN1933349A
CN1933349A CN 200610096483 CN200610096483A CN1933349A CN 1933349 A CN1933349 A CN 1933349A CN 200610096483 CN200610096483 CN 200610096483 CN 200610096483 A CN200610096483 A CN 200610096483A CN 1933349 A CN1933349 A CN 1933349A
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phone
bluetooth
free
voice
blue
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CN 200610096483
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朱立锋
牟中平
赵丽萍
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NANJING LIANHUI COMMUNICATION TECHNOLOGY Co Ltd
Nanjing Panda Electronics Co Ltd
Panda Electronics Group Co Ltd
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NANJING LIANHUI COMMUNICATION TECHNOLOGY Co Ltd
Nanjing Panda Electronics Co Ltd
Panda Electronics Group Co Ltd
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Priority to CN 200610096483 priority Critical patent/CN1933349A/en
Publication of CN1933349A publication Critical patent/CN1933349A/en
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Abstract

This invention relates to a method for making calls of car-carried blue-tooth hand-free phones by the blue-tooth and phone identification technology, in which, the car-carrier blue-tooth hand-free phone makes a pair with the blue-tooth cell phone, when the phone and the cell phone are connected at the current state, the blue-tooth cell phone receives an instruction and executes it, the car-carrier blue-tooth hand-free phone gets the telephone book information and stores it in the host, a user and the hand-free phone exchange views by tune directly applying intelligent tune identification technology and tune transformation technology , then the phone controls the cell phone terminal to realize functions of dialing, talking and picking up the telephone, and the car-carrier hand-free phone realizes hand free and phone dialing functions by the blue-tooth hand-free criterion.

Description

Realize the method for on-vehicle Bluetooth hand free telephone dialing by bluetooth and speech recognition technology
Technical field
The present invention relates to a kind of method that can realize the on-vehicle Bluetooth hand free telephone dialing of voice control making call.
Background technology
Social economy is constantly progressive, urban construction is fast-developing, and the personage that drives was many more originally, and vehicle-mounted product is also released successively, and the person for driving a car is also more and more higher for the requirement of vehicle-mounted product.
Automobile is except as the vehicles, and safe, the comfortable and complete amusement communication function of driving obtains the attention of industry just gradually.People can be the problems of an existence but how to call safely and effectively when driving by the hands-free incoming call of answering bluetooth cellular phone of blue-tooth vehicle-mounted hand free telephone when driving.
The bluetooth handsfree using standard has been stipulated to set up the process that blue-teeth data is connected with voice between voice gateways and hand free device, and how hand free device to carry out Long-distance Control based on this connection to mobile phone, and the visit external network is to realize telephony feature.Voice gateways in this standard are hand free device and the extraneous bridge that carries out voice communication, and the voice gateways among the present invention are meant the on-vehicle Bluetooth hands-free phone.By voice gateways, the telephone service that hand free device can use Cellular Networks with Bluetooth function to provide.After cell phone apparatus and voice gateways were communicated with, the user can carry out hand-free call.Here hand free device refers generally to the blue tooth vehicular system.This regulation and stipulation the characteristic that should support of voice gateways and hand free device, voice gateways must be supported to set up seeervice level with hand free device and be connected (SLC).All control signalings are transmitted on SLC.
Bluetooth standard is supported two kinds of patterns, and a kind of is " Handset " pattern that is applied to voice communication merely, i.e. the pattern of bluetooth earphone, and a kind of is " Handfree " pattern of supporting signaling and data communication simultaneously.Common bluetooth handsfree adopts " Handset " mode, only supports the speech that is similar to bluetooth earphone to answer, and mobile phone serves as voice gateways.Among the present invention, the on-vehicle Bluetooth hands-free phone serves as voice gateways, adopts bluetooth " Handfree " pattern, by the message pick-up and the transmission of Bluetooth system control bluetooth cellular phone.Mobile phone among the figure has Bluetooth function, needs to bind pairing with the blue tooth vehicular system before using for the first time, can connect automatically through the bluetooth cellular phone and the blue tooth vehicular system of matching.
Bluetooth hands realizes that by transmit special-purpose control command on RFCOMM these orders are subclass of general AT command set, have added relevant special instruction simultaneously.Can finish telephone state by these AT instructions and show, answer, refuse, hang up, transmit functions such as dual-tone multifrequency sign indicating number (DTMF), the control of long-range volume, control echo counteracting, noise suppressed and speech recognition.
In addition, in order to satisfy the interoperability requirement, bluetooth hands has also been made some regulations with regard to aspects such as the connection procedure of bluetooth channel, safety managements.When matching between bluetooth hands regulation on-vehicle Bluetooth hands-free phone and the bluetooth cellular phone equipment, the on-vehicle Bluetooth hands-free phone should be the promoter.On-vehicle Bluetooth hands-free phone initiating equipment inquiry, bluetooth cellular phone equipment carries out inquiry scan, just can find bluetooth cellular phone equipment in the effective range by equipment query on-vehicle Bluetooth hands-free phone.The on-vehicle Bluetooth hands-free phone connects with bluetooth cellular phone equipment by calling out (Page) then, initiates the pairing flow process.In this case, the on-vehicle Bluetooth hands-free phone can only be as main equipment, and bluetooth cellular phone equipment is slave unit.After pairing is finished, can either party initiate connection request by bluetooth cellular phone equipment or on-vehicle Bluetooth hands-free phone, there not be the branch of the master-slave equipment fixed.
The user into the car, the on-vehicle Bluetooth hand-free telephone system is gone up user mobile phone from being dynamically connected.The user need not just can finish dialing with acoustic control with manual manipulation, answers, hang up and functions such as volume adjusting when driving, and advances by microphone in the car and sound system that full duplex is hands-free to be answered and call.The overall application of bluetooth in onboard system need solve the problem aspect the hardware and software.Hardware is realized the radio frequency and the baseband portion of bluetooth, and operating temperature range, reliability and price are the emphasis problems that should consider when design hardware, and the various upper-layer functionality of onboard system are realized by software.Hands-free phone is as the main application of bluetooth in onboard system, and its using standard is ripe and obtain the support of numerous cell phone manufacturers.
In the existing technology: radio frequency chip provides data and voice wireless two-way to transmit in the 2.4GHz frequency range.Baseband chip comprises hardware such as frequency hopping, single channel encryption deciphering, authentication, SCO encoding and decoding speech, and firmware such as link management, HCI interface.Kernel softwares such as processor operation bluetooth upper-layer protocol stack, using standard and phonetic algorithm.Radio frequency, base band and processor partly can be called bluetooth subsystem.Automobile audio provides the input and output of sound for bluetooth subsystem by microphone in the car and loud speaker.Main operation controller man-machine interface softwares such as (MMI) carries out concentrated controling management to bluetooth subsystem, automobile audio and other vehicle electronic device, and will be presented at for information about on the graphic user interface (GUI).
Summary of the invention
The objective of the invention is: utilize current society " bluetooth cellular phone " popularization, by " bluetooth cellular phone " pairing on-vehicle Bluetooth hands-free phone, after connection, the telephone directory that car phone can obtain in " bluetooth cellular phone " is stored in the main frame, speech recognition dial feature by car phone dials and also can carry out hand-free call.A kind of convenient, fast, safe passing through is provided, and the on-vehicle Bluetooth hands-free phone is conversed and the making call method.
Technical solution of the present invention is: the implementation method that realizes the on-vehicle Bluetooth hand free telephone dialing by bluetooth and speech recognition technology, " on-vehicle Bluetooth hands-free phone " matches with " bluetooth cellular phone ", " car phone " and " bluetooth cellular phone " current state are when being connected, the on-vehicle Bluetooth hands-free phone sends the order of obtaining phone book information to " bluetooth cellular phone ", " bluetooth cellular phone " receives order back fill order, and the on-vehicle Bluetooth hands-free phone obtains " bluetooth cellular phone " phone book information and stores in the main frame; Adopt intelligent sound identification (AR) technology and speech conversion (TTS) technology, between user and the Wi-Fi mobile phone terminal directly the control by voice exchange function thereby realization " car phone " is dialled, converses, answered the call.
Behind the mobile phone power-on, after searching network and being ready to, tell the user " mobile phone is normal " by voice.When the user uses the phonetic entry phone book information if desired, in the phone book information input mode, select the phonetic entry mode, both can enable telephone directory phonetic entry mode.When the user uses phonetic entry memorandum information if desired, in memorandum information input mode, select the phonetic entry mode, both can enable memorandum phonetic entry mode.
Can be according to existing mobile phone speech recognition software system, for digital number, content few (ten numerals), each numeric utterance difference is big, can not accomplish very high discrimination under the training condition, but for common Chinese character, quantity is big, the pronunciation difference is little between a lot of words, accomplish that discrimination high under the training condition not is very difficult and unrealistic.We adopt speech digit identification at present, the voice tag information inquiry, and the mode of recorded message record can realize the function of voice call book and voice memo completely.
Speech recognition can allow the driver need not the manual operation electronic equipment, and by the sound instruction of typing in advance, the driver can call, and receives calls etc.; Operation or some noticeable information that speech synthesis technique reminds the driver to carry out with voice signal; The voice management layer manages various phonetic algorithm modules, as placement algorithm parameter and buffer data input and output etc.; Man-machine interface layer (MMI Interface) is the outside interface that communicates with bluetooth subsystem, special agreement is used in this communication, outside MMI main frame sends a command to the man-machine interface layer by this agreement, the man-machine interface layer is explained the order of receiving, then control application layer and carry out corresponding action, application layer also can be sent to the man-machine interface layer with data, state and the incident of bluetooth subsystem simultaneously, and the man-machine interface layer sends a command to outside MMI main frame by this agreement.Application layer is accepted all incidents from man-machine interface layer and bluetooth management level, under certain application conditions constraint, the incident that receives is handled, and carried out corresponding action and work in order with control man-machine interface layer, bluetooth management level and voice management layer.Application layer also is responsible for abnormal conditions are handled, and receives the unusual disconnection, failed authentication of false command, Bluetooth link etc. such as the man-machine interface layer, improves the reliability of system by suitable fault processing mechanism.
The present invention has adopted three big measures, to make things convenient for person for driving a car's conversation and dial feature when driving:
1. the on-vehicle Bluetooth hands-free phone connects the information such as telephone directory that read on the bluetooth cellular phone by bluetooth.
2. the built-in speech identifying function of on-vehicle Bluetooth hands-free phone, when the user need call, voice enter for telephone number or the person's of receiving calls name, on-vehicle Bluetooth hands-free phone identification telephone number, or the person's of receiving calls name and by mating with the telephone directory book that is written into, find out corresponding telephone number.
3. the on-vehicle Bluetooth hands-free phone connects the telephone number that the control bluetooth cellular phone is dialed correspondence by bluetooth, and realizes speaker phone function.
Characteristics of the present invention are: can realize that by the present invention program the person for driving a car passes through to pass through in the journey " car phone " control " bluetooth cellular phone " in driving, convenient, fast, safety is conversed and making call by the on-vehicle Bluetooth hands-free phone.
Description of drawings
Fig. 1 is a hardware block diagram of the present invention
Fig. 2 is bluetooth cellular phone of the present invention and car phone exchange of signaling matcher figure
Fig. 3 is a bluetooth cellular phone executive program schematic diagram of the present invention
Fig. 4 is that host computer control of the present invention " bluetooth cellular phone " according to number dials
Fig. 5 is a bluetooth cellular phone invoked procedure of the present invention
Embodiment
1. hardware implementation method such as Fig. 1
2. software and system realize
The on-vehicle Bluetooth hands-free phone is realized hand free, voice dial-up function by bluetooth hands, can carry out hand-free call and phonetic dialing." on-vehicle Bluetooth hands-free phone " start back is selected and " bluetooth cellular phone " pairing.Successful matching behind the exchange of signaling, " car phone " and " bluetooth cellular phone " successful connection.
Need " on-vehicle Bluetooth hands-free phone " and " bluetooth cellular phone " to match automatically before using for the first time, just can connect automatically through the bluetooth cellular phone and the blue tooth vehicular system of matching." car phone " and " bluetooth cellular phone " current state are when being connected, the on-vehicle Bluetooth hands-free phone sends the order of obtaining phone book information to " bluetooth cellular phone ", " bluetooth cellular phone " receives order back fill order, and the on-vehicle Bluetooth hands-free phone obtains " bluetooth cellular phone " phone book information and stores in the main frame.As shown in Figure 2.
Hand-free function and speech identifying function by the on-vehicle Bluetooth hands-free phone can carry out phonetic dialing and hand-free call, realize that host computer control " bluetooth cellular phone " according to number dials.
As shown in Figure 3, when the on-vehicle Bluetooth hands-free phone recognizes the phone book records of coupling, voice suggestion: " making a phone call whether for ' Zhang San ' ", or directly prompting " Zhang San ", by that analogy.When the user answers "Yes", then system voice prompts for " calling out Zhang San ".
" please say order " in the voice suggestion of on-vehicle Bluetooth hands-free phone, if the user by phonetic entry " number ", then the on-vehicle Bluetooth hands-free phone enters " number " recognition mode, waits for user speech input " number ", operating process is the same.
" please say order " in the voice suggestion of on-vehicle Bluetooth hands-free phone, if the user by phonetic entry " cancellation ", then the on-vehicle Bluetooth hands-free phone withdraws from speech recognition mode and turns back to holding state.
The on-vehicle Bluetooth hands-free phone adopts intelligent sound identification (AR) technology and speech conversion (TTS) technology, directly by speech exchange, the on-vehicle Bluetooth hands-free phone is controlled mobile phone terminal again and is realized functions such as dialling, converse, answer the call between user and the on-vehicle Bluetooth hands-free phone.
In on-vehicle Bluetooth hands-free phone speech recognition software system, for digital number, content few (ten numerals), each numeric utterance difference is big, can not accomplish very high discrimination under the training condition, but for common Chinese character, quantity is big, the pronunciation difference is little between a lot of words, accomplish that discrimination high under the training condition not is very difficult and unrealistic.We adopt speech digit identification at present, the voice tag information inquiry, and the mode of recorded message record can realize the function of voice call book and voice memo completely.
Enabling under the telephone directory phonetic entry mode situation, at first telephone number is imported in voice suggestion, the user enters for telephone number by voice, handset starting voice software recognition system, and the identification user enters for number, finish the identification back and import name with the voice suggestion user, after the user enters for name, call voice software recognition system partial function, finish the sampling that the user is entered for name, the record of sample analysis and feature, and the representative record of speech samples as the voice label record.In the user speech information inquiry, the name of phonetic entry is sampled and sample analysis afterwards, and the feature of sample analysis is compared with the voice label that writes down in the past, find out the record of characteristic value unanimity, and enter for corresponding user storage information.
The operation principle of voice memo is the same with the voice call book, and at first user speech is imported memorandum information and sampled and record, carries out input and the processing and the storage of User Recognition voice label again.Invoked procedure is consistent with the voice call book, and calling content is the information recording.
As Fig. 4 recording process.And invoked procedure is flow process as shown in Figure 5.

Claims (5)

1, realizes the implementation method of on-vehicle Bluetooth hand free telephone dialing by bluetooth and speech recognition technology, it is characterized in that " on-vehicle Bluetooth hands-free phone " and " bluetooth cellular phone " match, " car phone " and " bluetooth cellular phone " current state are when being connected, " bluetooth cellular phone " receives order back fill order, and the on-vehicle Bluetooth hands-free phone obtains " bluetooth cellular phone " phone book information and stores in the main frame; Adopt intelligent sound identification and Voice Conversion Techniques, between user and the on-vehicle Bluetooth hands-free phone directly the control by voice exchange, the on-vehicle Bluetooth hands-free phone is controlled Wi-Fi mobile phone terminal realization " car phone " function that dials, converses, answers the call then.
2, the implementation method that realizes the on-vehicle Bluetooth hand free telephone dialing by bluetooth and speech recognition technology according to claim 1, it is characterized in that the on-vehicle Bluetooth hands-free phone is by bluetooth hands realization hand free and voice dial-up function, " car phone " and " bluetooth cellular phone " current state are when being connected, and the on-vehicle Bluetooth hands-free phone also sends the order of obtaining phone book information to " bluetooth cellular phone ".
3, the implementation method that realizes the on-vehicle Bluetooth hand free telephone dialing by bluetooth and speech recognition technology according to claim 1, it is characterized in that the built-in speech identifying function of on-vehicle Bluetooth hands-free phone, when the user calls, voice enter for telephone number or the person's of receiving calls name, on-vehicle Bluetooth hands-free phone identification telephone number, or the person's of receiving calls name and by mating with the telephone directory book that is written into, find out corresponding telephone number.
4, the implementation method that realizes the on-vehicle Bluetooth hand free telephone dialing by bluetooth and speech recognition technology according to claim 1, need " on-vehicle Bluetooth hands-free phone " and " bluetooth cellular phone " to match automatically before it is characterized in that using for the first time, just can connect automatically through the bluetooth cellular phone and the blue tooth vehicular system of matching.
5, the implementation method that realizes the on-vehicle Bluetooth hand free telephone dialing by bluetooth and speech recognition technology according to claim 1, it is characterized in that enabling under the telephone directory phonetic entry mode situation, at first telephone number is imported in voice suggestion, the user enters for telephone number by voice, handset starting voice software recognition system, the identification user enters for number, finish the identification back and import name with the voice suggestion user, after the user enters for name, call voice software recognition system partial function, finish the sampling that the user is entered for name, the record of sample analysis and feature, and the representative record of speech samples as the voice label record; In the user speech information inquiry, the name of phonetic entry is sampled and sample analysis afterwards, and the feature of sample analysis is compared with the voice label that writes down in the past, find out the record of characteristic value unanimity, and enter for corresponding user storage information.
CN 200610096483 2006-09-28 2006-09-28 Method for realizing vehicular blue-tooth hand free telephone dialing by blue-tooth and voice identification technology Pending CN1933349A (en)

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CN101808147A (en) * 2009-02-13 2010-08-18 株式会社电装 In-vehicle apparatus with handsfree function
CN102291483A (en) * 2011-05-12 2011-12-21 惠州Tcl移动通信有限公司 Vehicle-mounted communication device and switching system and switching method thereof with mobile communication device
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CN102868427A (en) * 2012-08-28 2013-01-09 广东翼卡车联网服务有限公司 Dialing intelligent sound control method for vehicle
CN102891929A (en) * 2012-09-14 2013-01-23 杭州冠啸电子科技有限公司 Onboard short message interaction method
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