CN2691176Y

CN2691176Y - Voice identification vehicle carried telephone

Info

Publication number: CN2691176Y
Application number: CNU2004200444979U
Authority: CN
Inventors: 傅家林; 滕滨玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-08
Filing date: 2004-04-08
Publication date: 2005-04-06
Anticipated expiration: 2014-04-08

Abstract

The utility model discloses a voice identification vehicle carried telephone, comprising a telephone casing, various function keys and a display screen which are arranged on the telephone casing, a wireless telephone unit arranged in the telephone casing, a talking control and voice amplifying circuit which is connected electrically with the wireless telephone unit, an interface circuit, and an embedded DSP voice identification module that is connected electrically and separately with the talking control and voice amplifying circuit, the interface circuit, and the wireless telephone. According to the communication protocol, the information interchange happens between the embedded DSP voice identification module and the GSM module; because of the fact that the embedded DSP voice identification module is arranged in the telephone, the driver can use the voice command to complete the total operation in the process of making or receiving a phone call when the vehicle is driven. The driver uses the voice command to complete the total operation in the process of making or receiving a phone call, which can help the driver to make or receive a phone call during the driving process. Consequently, the potential safety hazard caused by the fact that the driver makes or receives a phone call during the driving process is avoided, and the driving safety is ensured.

Description

A kind of speech recognition car phone

Technical field

The utility model relates to the speech recognition car phone, and particularly a kind of can finishing with phonetic order dialed or the speech recognition car phone of whole operating process that receive calls.

Background technology

Existing car phone mainly adopts the keyboard dialing mode to call.When driving.The vehicle drive personnel call as desiring, and must use hand, eye to operate phone, and this causes traffic safety and influence greatly.

Some has the car phone of voice control function, needs typing voice identifier in advance.In use, say corresponding voice identifier (as name) facing to microphone, car phone is transferred to the phone of correspondence automatically.Though these car phones with voice control function can use when driving, its scope of application is limited, still can not dial the phone of arbitrary numbers.

The utility model content

The purpose of this utility model is, a kind of speech recognition car phone is provided, and can identify various operational orders that the operator sends with voice and telephone number arbitrarily exactly, controls more conveniently, can guarantee the safety of driving.

The technical solution of the utility model is as follows: a kind of car phone that adopts speech recognition technology is provided, comprise DSP embedded sound identification module, conversation control and voice amplifying circuit, system, control circuit, radio apparatus unit, pass through the co-ordination of communications protocol software between DSP embedded sound identification module and the gsm module.

In above-mentioned speech recognition car phone, described conversation control and voice amplifying circuit, interface circuit comprises receiver, loud speaker, preamplifier, linear switch, a port ground connection of receiver and loud speaker, another port is connected with the input of preamplifier, the output of preamplifier and linear switch SW1,1 end of SW2 connects, 2 ends of linear switch SW1 are connected with the IN1 of sidetone echo cancellation circuit coupling end, the OUT1 end of sidetone echo cancellation circuit coupling is connected with the A1 end of radio apparatus, and 2 ends of linear switch SW2 are connected with 6 pin AIN of DSP embedded sound identification module;

The A2 end of radio apparatus is connected with the IN2 end of sidetone echo cancellation circuit coupling, and the OUT2 end of sidetone echo cancellation circuit coupling is connected with 2 ends of linear switch SW3.The 7 pin AOUT of DSP embedded sound identification module M1 are connected with 2 ends of linear switch SW4, and 1 end of linear switch SW3, SW4 is connected with the input of power amplifier, and the output of power amplifier is connected with loud speaker, another port ground connection of loud speaker.

Control end KSW1, the KSW2 of linear switch SW1, SW2, SW3, SW4, KSW3, KSW4 are connected with KG1, KG2, KG3, the KG4 port of system, control circuit respectively.PORT COM TX, the RX of DSP embedded sound identification module (M1), C are connected with TXD, MRX, the SHC port of system, control circuit respectively, 8 pin VCC of DSP embedded sound identification module are connected to power supply+end, 5 pin are connected to the simulation ground terminal in the machine, and 4 pin are connected to the digitally line end in the machine.

The utlity model has following advantage: by the DSP embedded sound identification module is set in phone; Can use phonetic order to finish on the run to dial or the process that receives calls in whole operations, with phonetic order finish dial or the process that receives calls in whole operations, a human pilot of can buying car in installments is dialed when driving or is received calls, avoid the potential safety hazard dialing when driving or receive calls and bring because of the vehicle drive personnel, guaranteed traffic safety.

Description of drawings

Fig. 1 is the contour structures schematic diagram of the utility model speech recognition car phone;

Fig. 2 is the circuit theory diagrams of the utility model speech recognition car phone;

Fig. 3 is embodiment one circuit theory diagrams of the utility model speech recognition car phone;

Fig. 4 is embodiment two circuit theory diagrams of the utility model speech recognition car phone.

Embodiment

With reference to Fig. 1, Fig. 2, on the housing of speech recognition car phone, be provided with power switch key 1, be typical phone keyboard 2, menu key group 3, mode switch button 4, built-in receiver 5 (MIC), boombox 6 (SPEAKER), external receiver 7 (MIC) interface, external earphone interface 8, large-scale liquid crystal (LED) display screen 9.

With reference to Fig. 2, operation principle of the present utility model is as follows:

When preparing to use phonetic order to call, under the control of the central processing unit in system, control circuit, linear switch SW1, SW3 all are in off-state, and linear switch SW2, SW4 all are in on-state.Simultaneously, send the 3 pin Cs end of a control command, make DSP embedded sound identification module (M1) in running order to DSP embedded sound identification module (M1) by the SHC end of system, control circuit.

The phonetic order that is received by receiver (MIC) is converted to be sent into preamplifier (AMP1) behind the signal of telecommunication and amplifies, signal after the amplification is discerned by the voice channel input (6 pin of DSP embedded sound identification module) that linear switch SW2 sends into DSP embedded sound identification module (M1), phonetic order after the identification becomes the signaling format of stipulating by communications protocol in the internal conversion of DSP embedded sound identification module (M1), the RXD that is sent into system, control circuit by PORT COM TX holds, and the central processing unit in the system, control circuit is then controlled the phone operating state according to command content.

In the process of using phonetic order to call, DSP embedded speech recognition mould (M1) can send corresponding voice suggestion according to related content, the voice suggestion signal passes through linear switch SW3 by the voice channel output terminals A OUT (7 pin) of DSP embedded sound identification module (M1), send into the input of power amplifier (AMP2), after power amplifier (AMP2) amplifies, promote loud speaker and send voice suggestion, help user's complete operation.

After dialing was finished, the central processing unit in the system, control circuit sent instruction, and the C that sends into DSP embedded sound identification module (M1) by the SHC end holds (3 pin), and (M1) closes with the DSP embedded sound identification module.Simultaneously linear switch SW2, SW4 are in off-state, linear switch SW1, SW3 are in on-state.Receiver (MIC), preamplifier (AMP1) etc. constitute the speech input channel of phone at this moment, and power amplifier (AMP2), loud speaker (SPEAKER) etc. constitute the speech output channel of phone.

Fig. 3 is concrete Application Example one a circuit theory schematic diagram of the present utility model.

Further specify the course of work of the utility model embodiment one in conjunction with Fig. 1, Fig. 3:

Press 1 key among Fig. 1, behind the electric power starting, this machine will enter mode standard automatically, and under this pattern, function of this machine and method of operation are identical with general car phone, and various operations can be finished by keyboard (among Fig. 1 2).

When user (or change) should advanced lang sound training when using first for this machine, allows speech recognition system study user's phonetic feature.This machine is provided with special phonetic study program, after the key groups shown in 3 enters main menu among Fig. 1, enters the learning program of this machine again, and the voice suggestion that the user sends according to machine is said corresponding contents with the accent of oneself being accustomed to.After the EP (end of program), machine is got back to the mode standard state automatically.

Use voice control call function as desire, press " model selection " button shown in 4 among Fig. 1, machine enters speech recognition mode.After hearing prompt tone, (the built-in receiver among Fig. 1 shown in 5 is connected with body by a rotatable arm facing to built-in receiver shown in 5 among Fig. 1, regulate the sensing of rotatable arm during use, make it to aim at the user) say the telephone number that will dial bit by bit, the voice messaging that receiver receives is converted to the signal of telecommunication, send into 3 pin of IC1 LM386 by C1, the voice signal after IC1 amplifies is sent into 2,3 pin of IC2 LC4066 by the 1 pin output of IC1 by C2.IC2 is one four path analoging switch, under the control of control port KG1, the KG2 of system, control circuit, KG3, KG4, voice signal after the amplification is by the 4 pin output of IC2,6 pin of sending into DSP embedded sound identification module M1 SDSP-03 carry out speech recognition, the RXD that phonetic order after the identification is sent into system, control circuit by the PORT COM of M1 holds, and the large LCD panel shown in 9 demonstrates telephone number corresponding in Fig. 1.Simultaneously, sound identification module sends the voice suggestion signal and is sent by 7 pin of M1, send into 11 pin of IC2, by 9 of IC2, the output of 10 pin, pass through C4,6 pin that R6 sends into IC1 LM386 amplify, voice suggestion signal after the amplification is by the 7 pin output of IC1, send into the upper end of volume control potentiometer VR1 by C6, lever arm output by VR1,4 pin of sending into power amplifier IC3 LM4991 by C7 carry out power amplification, voice suggestion signal after the power amplification is by 7 of IC3, the output of 8 pin promotes boombox SPEAKER sounding (6 are depicted as boombox among Fig. 1), quotes the telephone number of having imported, through the user confirm errorless after, send " dial-out " instruction with voice, the central processing unit in the system, control circuit is then controlled the phone operating state according to this command content, automatically phone is transferred to.

Voice signal during conversation is by voice channel output terminals A 2 outputs of the gsm wireless sending and receiving module in the radio apparatus, send into the IN2 end of sidetone echo cancellation circuit coupling, OUT2 end output by the sidetone echo cancellation circuit coupling, send into 8 pin of IC2,8,9 pin output by IC2, with the voice suggestion signal by the road through identical, through promoting the boombox sounding after the power amplification.

Among Fig. 17 and 8 is respectively external earphone and external receiver interface, when the user does not want to allow other people hear message, can use external earphone and external receiver.

Other calls the operational order commonly used in the process, redials, revises current one-bit digital as making a phone call, re-enters all available phonetic orders of operation such as number and carry out.

Fig. 4 is the circuit theory diagrams of the utility model embodiment two;

Increased a HANDSET in Fig. 4, HANDSET is a telephone handle, and by increasing telephone handle, except can realizing the hand-free call function, but also common phone equally uses; When telephone handle is not picked up, K switch 1 closure, 1 end of K1 is a low level, and the KHS end of system, control circuit is low level, and the KRLY end also is a low level, and Q2 ends, not adhesive of relay R Y1.The voice messaging that built-in receiver receives is converted to the signal of telecommunication, delivers to 8 pin of RY1, and by the RY1 switch inside, signal is delivered to C1 by JAK1 again by the 6 pin output of RY1.Voice signal after IC3 amplifies, by 5 pin and the output of 8 pin of IC3,8 pin are common port, and the voice signal of 5 pin output is delivered to 1 pin of relay R Y1 through JAK2, and by the RY1 switch inside, signal is delivered to boombox by the 5 pin output of RY1.The course of work of other parts is identical with Fig. 3.

After telephone handle was picked up, K switch 1 disconnected, and under the effect of pull-up resistor R17,1 end of K1 becomes high level, and the KHS end of system, control circuit is high level, and the KRLY end also is a high level, Q2 conducting, relay R Y1 adhesive.At this moment, because the switching of RY1 internal switch, built-in receiver, boombox, external earphone and external receiver are all inoperative, have only receiver (MIC2) and loud speaker (SPEAKER2) in the telephone handle to work.

It is that the sound identification module of SDSP-03 is realized that DSP embedded sound identification module in the foregoing circuit can adopt model.

Claims

1, a kind of speech recognition car phone, comprise the phone housing, be arranged on various function buttons, display screen on the housing, be arranged on radio apparatus unit, the conversation control that is electrically connected with the radio apparatus unit and voice amplifying circuit, interface circuit in the housing, it is characterized in that, also comprise the DSP embedded sound identification module that is electrically connected with described conversation control and voice amplifying circuit, interface circuit, radio apparatus respectively, carry out information exchange by communications protocol between described DSP embedded sound identification module and the gsm module.

2, according to the described speech recognition car phone of claim 1, it is characterized in that, described conversation control and voice amplifying circuit, interface circuit comprises receiver, loud speaker, preamplifier, linear switch, a port ground connection of receiver and loud speaker, another port is connected with the input of preamplifier, the output of preamplifier and linear switch K1,1 end of K2 connects, 2 ends of linear switch K1 are connected with the M1AIN of interface circuit end, 2 ends of linear switch K2 are connected with 4 pin of DSP embedded sound identification module, the M1AOUT end of interface circuit is connected with 2 ends of linear switch K3,2 pin AOUT of DSP embedded sound identification module are connected with 2 ends of linear switch K4, linear switch K3,1 end of K4 is connected with the input of power amplifier, and the output of power amplifier is connected with loud speaker;

Control end KS1, the KS2 of linear switch K1, K2, K3, K4, KS3, KS4 are connected with MS1, MS2, MS3, the MS4 port of interface circuit respectively.The PORT COM TX of DSP embedded sound identification module, RX, GND are connected with MTX, MRX, the GND port of interface circuit respectively.

3, according to the described speech recognition car phone of claim 2, it is characterized in that, also further comprise a hands-free telephone handle, the duplex relay that is connected with telephone handle, the triode Q2 that is electrically connected with the duplex relay, described duplex relay and triode Q2 also are electrically connected with radio apparatus unit and conversation control and voice amplifying circuit respectively.