WO2007025478A1

WO2007025478A1 - A vehicle telephone compatible with the telephone of the driver

Info

Publication number: WO2007025478A1
Application number: PCT/CN2006/002242
Authority: WO
Inventors: Xuejun Tang
Original assignee: Xuejun Tang
Priority date: 2005-09-01
Filing date: 2006-08-31
Publication date: 2007-03-08
Also published as: CN2834040Y

Abstract

A mobile communication telephone, especially a vehicle telephone compatible with the telephone of the driver, includes: communication module, which is used for exchange the data with mobile communication service network and realizing communication, signal receive part, which is used for receiving the telephone state signal of the driver, voice play part and voice receive part. It can control the said communication module work by receiving the telephone of the driver calling and called state and by sampling the voice control signal by voice receive part, such that the communication process of the telephone is switched to communication module, then it is compatible with the telephone of the driver by receiving the voice information by voice receive part and playing by voice play part.

Description

Car phone compatible with driver's mobile phone

Technical field

The utility model relates to a mobile communication device, in particular to a car phone compatible with a driver's mobile phone. '

technical background

In the process of using the existing mobile phone, the user needs to use one hand to operate through the keyboard on the mobile phone, which not only needs to occupy one hand for operation, but also brings great inconvenience to the user who drives the car, and during the driving process, It is necessary to observe the road conditions, look at the phone keypad, hold the steering wheel in one hand, dial in one hand or perform other operations, which is very easy to distract, which brings safety hazards to driving and also violates traffic regulations. In addition, the existing mobile phone handsets are mostly open-type speakers, and the sound is loud during the call. In the enclosed space of the car, even if the mobile phone is closely attached to the ear, the sound of the earpiece during the call is easily taken by the same person. Hearing, therefore, can not protect the user's privacy, adding unnecessary trouble, and the existing earphones configured by the mobile phone can solve this problem, but most of them are wired headphones, the connection is troublesome and not portable, even some wireless Bluetooth headsets are It is bulky, and it will be uncomfortable for users to wear for a long time, and it needs to be charged separately. It is inconvenient to carry out.

At the same time, some existing cars are also equipped with car phones, but the current car phones have the following problems. First, if the driver's mobile phone number does not match the car phone number, it is often necessary to set the phone when getting in the car. In the "call transfer" state, the "call transfer" is canceled when getting off the vehicle, so that synchronous communication can be realized. This method is troublesome to operate; in addition, most of the existing car phones do not have headphones, and the call information is broadcast through the speaker. When there is a passenger in the car, it is not conducive to protecting the privacy of the driver's call; The car phone used is not a standard configuration provided by the car manufacturer. It requires a professional installation method. Since the control lines of different models are not identical, and it is worried that the electrical circuit of the original car will be damaged during the installation process, it is difficult to popularize it. ,.

Utility model content

The utility model overcomes the above disadvantages and provides a car phone that is fully functional and easy to operate and is compatible with a driver's mobile phone.

The technical solution adopted by the utility model to solve the technical problem thereof comprises: a communication module for directly performing data exchange with a mobile communication service network and realizing a communication function, and a signal receiving part for receiving a driver's mobile phone state signal, and a voice playing part And the voice receiving portion, the signal receiving portion, the voice playing portion and the voice receiving portion are respectively connected to the communication module.

A wireless remote control mounted on the steering wheel of the vehicle may also be included and a control signal may be sent to the communication module via a wireless high frequency signal.

The signal receiving portion may include a Bluetooth module or/and a headphone jack circuit connected to the communication module.

An echo cancellation module may be connected between the voice receiving portion and the communication module, and the echo cancellation module is configured to perform echo cancellation processing on the received voice information, between the voice playback module and the communication module. A voice chip for processing the voice signal for broadcast is connected. The voice receiving portion may include a power amplifier module or/and a wireless earphone, the power amplifier module is connected with a speaker, and the wireless earphone includes a wireless receiver, and a wireless transmitter is connected to the communication module, through the wireless The transmitter converts the voice information into a high frequency radio frequency signal, which is then received by the wireless earphone and decoded into an audio signal broadcast. Out.

The live sound receiving portion may include a built-in microphone and an external microphone jack.

A headphone carrier may be included, the voice receiving portion and a wireless transmitter being disposed in the earphone carrier, the wireless transmitter for transmitting a signal to the wireless earphone.

A power supply circuit for connecting the various parts of the circuit to provide a stable operating power supply, the power supply circuit comprising a battery or/and a voltage stabilizing circuit, the input end of the voltage stabilizing circuit and a cigarette lighter charger in the vehicle Or the car battery is connected. The earphone cradle may further be provided with an earphone detecting circuit for detecting whether the earphone is mounted on the earphone cradle, the wireless earphone is provided with a rechargeable battery, and a charging circuit is disposed in the corresponding earphone cradle.

An alarm detection probe coupled to the vehicle alarm device can also be included, the alarm detection probe being coupled to the communication module at the same time.

The utility model comprises a communication module for directly performing data exchange with a mobile communication service network, realizing a communication function, a signal receiving part for receiving a mobile phone status signal, a voice playing part and a voice receiving part. Receiving, by the signal receiving portion, an outgoing or incoming call state of the driver's mobile phone, and collecting a voice control signal through the voice receiving portion, controlling the communication module to work, transferring the communication process of the mobile phone to the communication module, and then It is compatible with the driver's mobile phone by playing part of the voice play and receiving the voice information during the call through the voice receiving part. ,

DRAWINGS

Figure 1 is a block diagram of the utility model

Figure 2 is a circuit diagram of the earphone bracket of the present invention

3 is a circuit schematic diagram of a wireless earphone in the present invention Figure 4 is a block diagram of the steering wheel controller of the present invention

Figure 5 is a block diagram of the steering wheel control receiver of the present invention

detailed description

As shown in FIG. 1 , the utility model is functionally divided into a communication module 101, a signal receiving part, a voice playing part and a voice receiving part, and the communication module is used for directly performing data exchange and realizing communication with a mobile communication service network. Function, the signal receiving portion is configured to receive a mobile phone status signal, including a Bluetooth module 103 and a headphone jack 203 and a connected loop thereof, the voice playing portion includes a power amplifier module 106 to which the speaker 111 is connected, and receive by a high frequency radio frequency signal The wireless earphone of the voice information, the voice receiving portion includes a built-in microphone 202-1 and an external microphone jack 202-2.

The utility model is divided into four parts: a host I, a headphone bracket II, a wireless earphone III and a wireless remote controller W mounted on the steering wheel of the automobile. For ease of understanding, the present embodiment describes the control circuit by means of junction division.

The host computer 1 includes a communication module 101 capable of realizing a common mobile phone communication function and overall control, and the communication module includes all functional modules of the existing ordinary mobile phone, such as an audio module 101-1, a data interface bus 101-2, and a power module. 101-3. The control port GP IO, the charging control module 101-4, and the like, the data interface bus 101-1 is divided into a parallel bus and an I2C bus. The overnight module is connected with a receiver 102 for receiving a control signal sent by a steering wheel remote controller through a data terminal, the receiver is connected with a receiving antenna, and a +5V power supply is connected through a switch K1, the +5V A power supply module 109 for powering the charger 205 in the earphone carrier is also connected to the power source.

The communication module is further connected with a Bluetooth module 103 for communicating with a driver's mobile phone through the GPIO port, and the Bluetooth module also performs serial data communication with the communication module 101 through the serial interfaces TXD2 and RXD2, that is, Driver's blue The control signal sent by the tooth-operated mobile phone is received by the Bluetooth antenna 110 connected to the Bluetooth module 103, and then transmitted to the communication module 101 through the serial bus and the GPIO port.

a voice chip 104 for decoding and transmitting voice information sent by the communication module 101, whose input end passes through a data line and a set of parallel data interface bus of the communication module 101 and CS, RD, WR, and Al terminals Connected, the output is connected to a power amplifier module 106, and is also connected to a wireless transmitter 201 in the earphone carrier that emits a high frequency signal to the wireless earphone via an isolation resistor R. The power amplifier module 106 is configured to amplify and output a voice signal output by the voice chip, and has a speaker 111 connected to the output end thereof, and two control input terminals are connected to the two GPI07 and 8 ports of the communication module 101, and An output of the AND gate 112 is coupled to the DnL and DnR terminals of the power amplifier module 106, one input of the AND gate 112 is coupled to a GPIO0 port of the communication module 101, and the other input is coupled to The output of the earphone detecting circuit 204 on the earphone carrier is connected, that is, when the earphone detecting circuit 204 detects that the earphone is placed on the earphone carrier, the power amplifier module 106 is controlled to operate after the logical AND gate 112, and The output of the voice chip is broadcasted through the speaker 111. Conversely, when the earphone detecting circuit 204 detects that the earphone has been removed from the earphone carrier, the power amplifier chip does not work, and the output of the voice chip 104 passes through the The wireless transmitter is then passed to the wireless headset for playback.

An echo cancellation module 105 for performing echo response processing on the audio signal collected by the microphone and the audio signal sent by the communication module, respectively, with the audio module 101-1 of the communication module 101, the microphone in the earphone bracket And the input of the wireless transmitter 201 in the earphone bracket is connected, the other two outputs AUXO and EAR of the audio module 101-1 pass a comparator A1 and then pass a double throw switch SPDT The echo cancellation module 105 is also connected to the echo cancellation module 105. The common terminal of the double-throw switch SPDT is connected to the echo cancellation module 105. The two selection terminals are respectively connected to the output end of the comparator A1 and the Bluetooth module. At the EARBT end, the microphone connected to the echo cancellation module 105 includes a built-in microphone 202-1 and an external microphone connected through the microphone jack 202-2. The echo cancellation module sends the voice signal collected by the microphone to the audio module 101-1 of the communication module after being subjected to echo cancellation processing. a headphone jack 203 disposed on the earphone carrier, one connection end connected to the output end of the comparator A1, the other connection end connected to the GPIO port, and another connection end connected to the audio module 101-1 is connected to one end of the echo cancellation module 10. The function of the switch SPDT is to switch the data transmission mode between the driver's mobile phone and the utility model. When the driver's mobile phone has a Bluetooth module, the signal reception is switched to the Bluetooth module 103 through the switch SPDT. When the driver's mobile phone has a signal call, the Bluetooth module sends a signal to the Bluetooth module 103 through the Bluetooth module on the mobile phone, and then receives the driver's voice command from the microphone on the earphone carrier, and is controlled by the echo cancellation module 105. The communication module 101 works, directly exchanges data with the mobile communication network, and transfers the incoming call or information service to the local machine; and when the switch SPDT is switched to the audio module end, and through the data line of the mobile phone and the earphone The socket 203 is connected to transmit a control signal. When the driver's mobile phone has a signal call, the driver's mobile phone transmits a status signal to the communication module 101 via the data line via the earphone socket 203. The status signal includes the driver's mobile phone. Whether there is a phone call in or out, whether there is a short message transfer, whether there is a voice message, etc. Microphone on the headset cradle receiving said voice command drivers, working via the echo cancellation module 101 controls the communication module 105, also implemented to call or information services is transferred to the native implementation.

Further provided in the ^host; is set by a charging circuit, the charging circuit and the current input terminal There is an electric cigarette charger 501 connected in the car, and the input end is connected to two voltage stabilizing modules W1, W2 through a manual switch 108, that is, output +5V and +3.3V, providing stable internal parts of the device. Working power supply. In addition, the host is further provided with an LCD display 113 connected to the communication module 101, and connected through the SDO, SCLK and CS ends of the I2C interface in the data interface bus 101-2, and the LCD display can be used for Display various information contents of call-to-power. There is also an alarm detecting probe 107 connected to a GPIO port of the communication module 101. When the alarm detecting probe detects the action of the in-vehicle alarm, it sends a signal to the communication module 101, and the communication is performed by the communication. Module 101 automatically dials the driver's mobile phone or other set number to alert the driver. There is also a GPS module connected to the communication module 101 (not shown), and the connection mode is the same as that of the alarm detection probe, and is used for realizing global satellite positioning and navigation functions of the automobile. The communication module 101 can also connect the power amplifier 502 of the car through the GPIO port, so that the voice information is played through the speaker in the car. Further, the host may further be provided with a control button, and the output of the control button is connected to the control end of the communication module 101 (not shown in FIG. 1).

As shown in FIG. 2, the earphone bracket II is provided with a built-in microphone 202-1 and an external microphone jack (not shown in FIG. 2) respectively connected to the host, a power circuit 206, a headphone jack 203, and a charger. The contact 205 and the earphone detecting contact 204 also have an incoming light indicator 207 for indicating whether a connection has been established with the communication network, and is also connected to the GPIO end of the host. - The headset jack can also act as a charging terminal for charging the host or a data terminal for updating or upgrading internal software. There is also a wireless transmitter 201 that transmits a voice signal sent from the host to the wireless headset through a wireless radio frequency signal and transmits it to the user through the earphone. The infinite transmitter 201 includes an operational amplifier U1, an 8051 MCU U2 with a radio frequency front end circuit, and an extension E ² ROM chip U3. The output of the echo cancellation module in the host is amplified by the operational amplifier U1, input to the input end of the A/D converter in the 8051 U2, and the RF front-end circuit passes the single-stage transmit antenna with a 2.4 GHz radio frequency. The signal is sent.

As shown in FIG. 3, the wireless earphone III includes a wireless receiver 302, a headphone speaker 301, a battery circuit 304, and a power switch 303. The wireless receiver 302 includes the same 8051 chip U4 and extensions as in the wireless transmitting circuit. An E ² R〇M chip U5, and a logic NOT gate U6, an operational amplifier U7 and an earphone speaker 301 connected in sequence from the output end of the 8051, a single-stage receiving antenna is connected to the RF front-end circuit of the 8051, and receives The 2.4 GHz signal transmitted by the earphone carrier is output by the output end of the D/A conversion circuit of the 8051, and then processed by the headphone speaker 301 after being processed by the logic gate and the operational amplifier. In addition, the wireless earphone further includes a battery circuit 304, the earphone battery circuit 302 includes a rechargeable battery U8 that can be frequently charged, and two charging contacts 305 of the positive and negative electrodes are connected, and the rechargeable battery U8 is A normally closed pressing switch 303 is further connected in series with the circuit of the VDD terminal connected to the other parts of the circuit. When the earphone is embedded in the earphone carrier, the earphone carrier is mounted on the earphone carrier. The charging contact 205 is in contact with the charging contact 305 on the earphone, charging the rechargeable battery U8 in the earphone, while being disconnected by the earphone detecting contact 204 pressing the pressing switch 303, the rechargeable battery The power supply circuit of each chip in the earphone is cut off, the earphone does not work, the earphone detection contact detects that the earphone position signal is transmitted to the host, and the speaker connected to the power amplifier module in the control host plays a voice signal. When the wireless earphones III are removed from the earphone carrier II, the charging contacts 205 and 305 are disconnected, and the pressing switch is reclosed 303. At this time, the rechargeable battery supplies power to each part of the circuit in the earphone. And starting work, receiving a radio frequency signal transmitted from the earphone carrier, and broadcasting through the earphone speaker 301. ^! As shown in FIGS. 4 and 5, the steering wheel remote controller is composed of a keyboard 401, a translator 402, an oscillating transmitting circuit 403, and a single-stage antenna 404, which are sequentially connected. The translator 402 includes 8-3. The decoder and the remote control encoder, corresponding to the receiver 102 in the host, are composed of a single pole receiving antenna, a superheterodyne receiver and a remote control decoder, which are connected in sequence, and are controlled by controlling a controller keyboard disposed on the steering wheel. Control signals such as answering, broadcasting, and hanging up are sent to the host through the above circuit, so that the user can conveniently operate even while driving.

In addition, two connection modes, that is, a contact connection and a wire connection, can be adopted between the earphone bracket II and the host 1. When the contact connection is used, the earphone bracket and the host are integrally connected, and the earphone bracket and the host can be connected. It can be placed or installed in any position in the car. It is more flexible. In this case, the remote control set on the steering wheel can be omitted. It can be controlled by voice or the buttons on the main unit. The host is hidden, and the earphone bracket is mounted on a special mounting frame to make the product look smaller and occupy less space in the car. At this time, the LCD display disposed on the host can be omitted. .

The working process of the utility model is as follows: when the user's mobile phone has an incoming call, the Bluetooth module in the host receives the communication information of the mobile phone, and transfers the mobile network information to the communication module 101 through the communication antenna of the host, the user can Controlling the hang up or answering by the set voice or button command, after the user requests to answer, the call on the user's mobile phone will be automatically transferred to the host, and the voice information used can be set in the headset The built-in microphone on the rack is received by an external microphone, and the voice information of the other party can be broadcasted through a speaker connected to the power amplifier module, or the voice information of the call can be passed by extracting the earphone from the earphone bracket. The wireless earphone is answered, and the two listening modes do not need to occupy the hand of the ^, thereby ensuring the driving safety of the user during the operation of the car, and Through the setting of the software, the voice reading function of the short message can also be realized.

When the call is made from the user's mobile phone, it can also be dialed out by the user's mobile phone, and then the communication information is received by the Bluetooth module, and then the call process is transferred to the utility model to complete.

When a SIM card is installed in the communication module, the present invention can be used as an independent handset for answering and dialing operations.

The above is a detailed description of the car phone that is compatible with the driver's mobile phone provided by the present invention. The principles and embodiments of the present invention are described herein with specific examples. The description of the above embodiments is only for helping to understand the present invention. The method and its core idea; at the same time, those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of the specification should not be understood as Limitations of the invention.

Claims

Rights request

A car phone compatible with a driver's mobile phone, comprising: a letter module for directly performing data exchange with a mobile communication service network, and a communication function for receiving a signal receiving portion of a driver's mobile phone state signal, voice The playing portion and the voice receiving portion are respectively connected to the communication module.

2. The car phone compatible with a driver's mobile phone according to claim 1, further comprising: a wireless remote controller mounted on the steering wheel of the automobile, and transmitting a control signal to the communication module via the wireless high frequency signal.

3. A car phone compatible with a driver's mobile phone according to claim 1 or 2, wherein: said signal receiving portion comprises a Bluetooth module or/and a headphone jack circuit connected to said communication module.

4. The car phone compatible with a driver's mobile phone according to claim 1 or 2, wherein: an echo cancellation module is connected between the voice receiving portion and the communication module, and the echo cancellation module is configured to receive The obtained voice information is subjected to echo cancellation processing, and a voice chip for processing the broadcasted voice signal is connected between the voice playback module and the communication module.

5. The car phone compatible with a driver's mobile phone according to claim 4, wherein: the voice receiving portion comprises a power amplifier module or/and a wireless earphone, the power amplifier module is connected with a speaker, and the wireless earphone comprises a wireless device. a receiver, connected to the communication module, with a wireless transmitter, through which the voice information is converted into A high frequency radio frequency signal is emitted, which is then received by the wireless earphone and decoded into an audio signal for broadcast.

6. The car phone compatible with a driver's mobile phone according to claim 4, wherein - said voice receiving portion comprises a built-in microphone and an external microphone jack.

7. The car phone compatible with a driver's mobile phone according to claim 1 or 2, comprising: a headphone holder, wherein the voice receiving portion and the wireless transmitter are disposed in the earphone holder, the wireless A transmitter is used to send a signal to the wireless headset.

8. The car phone compatible with a driver's mobile phone according to claim 1 or 2, further comprising: a power supply circuit for connecting the circuits to each part to provide a stable working power, the power circuit comprising a rechargeable battery or And a voltage stabilizing circuit, the input of the voltage stabilizing circuit is connected to a cigarette lighter charger or a car battery in the car.

9. The car phone compatible with a driver's mobile phone according to claim 7, wherein the earphone carrier is further provided with an earphone detecting circuit for detecting whether the earphone is mounted on the earphone carrier, the wireless The earphone is provided with a rechargeable battery, and a charging circuit is provided in the corresponding earphone bracket.

10. The car phone compatible with a driver's mobile phone according to claim 1 or 2, further comprising: an alarm detecting probe connected to the car alarm device, wherein the alarm detecting probe is simultaneously connected to the communication module, The utility model comprises a GPS signal receiver for global positioning and navigation of a vehicle position, the GPS signal receiver is also connected with the communication module, and further comprises a display circuit for displaying relevant information during operation and one for A button control circuit that operates a control command.