CN102143270B - A kind of mobile phone car phone means of communication based on Bluetooth function and equipment - Google Patents

Abstract

The invention discloses a communication method and device for a mobile phone in-vehicle based on a bluetooth function. A push-to-talk button is set on the in-vehicle device. After the key is pressed, it is connected to the main controller MCU and connected to the The owner's mobile phone with Bluetooth function, if you dial the background processing call through the mobile phone, you will need to make a call to communicate with the processing background. The original mobile phone address book is preset in the processing background, and the voice recognition system is set in the background. /FSK is transmitted to the main controller MCU, and the main controller MCU dials the required number through the Bluetooth mobile phone, thereby realizing the dialing function of the original mobile phone. The invention utilizes the function of the original mobile phone without adding a communication module, the communication fee is clear, and the calling is safe and convenient.

Description

A method and device for mobile phone in-vehicle communication based on bluetooth function

technical field

The invention relates to the technical field of vehicle communication, and more specifically relates to a vehicle communication method with bluetooth function.

Background technique

With my country's automobile sales jumping to the No. 1 market in the world, the ownership of private cars has reached a very high level. However, due to people's habits, it is very common for drivers to use ordinary mobile phones. Although the laws and regulations of various countries in the world stipulate The use of mobile communication phones while driving is not allowed, but this phenomenon is still difficult to prohibit, resulting in constant traffic accidents.

In order to solve this problem, people have adopted the method of installing a car phone on the car. An ordinary car phone is equivalent to a fixed phone with a hands-free function, and it is relatively inconvenient to use. The application number is CN200610124146.2, open (announcement) Date: 2007.08.15, the invention patent application titled the vehicle-mounted telephone device and its seamless automatic transfer system and method with the mobile phone discloses a technical solution. Communication network and external telephone system etc. The device is provided with a main controller, which is connected with a keyboard, a wireless communication module, a microphone array and an automobile ignition/extinguishment sensing signal device, and is provided with a call transfer information storage module and a call transfer request instruction sending module. In the call transfer center, there is a database for storing the vehicle phone number, the user's mobile phone number and the user's communication information. The feature of the method of the present invention is to utilize the car phone device and system to carry out the sequence control of seamless automatic transfer: when the car is started, the user's mobile phone can be automatically transferred to the car phone device, and when the engine is turned off, the call transfer is automatically canceled; When using the car phone to make a call, the other party's mobile phone will display the user's mobile phone number, so that when the user leaves the car, there is no missed call. This technical solution still has the defect of repeated charging of communication charges, and its main dial-up is still inconvenient, which also affects driving safety.

Contents of the invention

The purpose of the present invention is to provide a mobile phone vehicle-mounted telephone communication method based on the bluetooth function which is convenient and safe to operate and utilizes the original mobile phone communication charges in order to solve the deficiencies of the prior art.

The present invention realizes the above-mentioned object by adopting the following technical solution: a mobile phone vehicle-mounted telephone communication method based on the Bluetooth function, a push-to-talk button is set on the vehicle-mounted device, and after the button is pressed, it is connected to the main controller MCU, through Bluetooth The voice call of the module is connected to the car owner's mobile phone with Bluetooth function, and the background processing call is dialed through the mobile phone. It will be necessary to make a call to communicate with the processing background. The original mobile phone address book is preset in the processing background, and the voice recognition system is set in the background. After confirmation, the background transmits to the main controller MCU through DTMF/FSK, and the main controller MCU dials the required number through the Bluetooth mobile phone, thereby realizing the dialing function of the original mobile phone.

The bluetooth module is used to carry out information transmission between the mobile phone with bluetooth function and the main controller, and it is characterized in that the information transmission between the bluetooth module and the mobile phone with bluetooth function and the main controller is to transmit the data carrier through the voice channel , and then modem in the background.

The present invention also provides a mobile phone vehicle-mounted telephone communication device based on the bluetooth function for realizing the above method, including a car owner's mobile phone with a bluetooth function, a bluetooth module, a main controller MCU arranged on the vehicle-mounted device, and a device for communicating with the mobile phone In the processing background, a push-to-talk button is set on the vehicle-mounted device. The main controller MCU is bidirectionally connected with the vehicle-mounted device through a serial port, and the Bluetooth module is connected to the A/D audio channel of the main controller MCU. It is equipped with an audio modulator to separate the digital information in the voice channel sent by the Bluetooth module, or decode the digital signal of the processing background and the vehicle equipment into an audio signal, and transmit it to the owner's mobile phone with Bluetooth function. The processing background is preset with The owner's phone number address book.

The beneficial effects that the present invention can achieve by adopting the above-mentioned technical solutions are: the present invention makes full use of the original car owner's mobile phone to carry out the dialing function, and there is no problem that the communication fee of dialing and calling through the background transfer cannot be handled. , The Bluetooth function is realized, which makes the communication safer during driving.

Description of drawings

Fig. 1 is a schematic diagram of the block principle of the present invention.

Detailed ways

As shown in Figure 1, the mobile phone vehicle-mounted telephone communication equipment based on bluetooth function of the present invention comprises the owner's mobile phone with bluetooth function, the main controller MCU that is arranged on the vehicle-mounted device and the processing background that communicates with the mobile phone. The vehicle-mounted device of example is a vehicle-mounted audio-visual host or a navigation host, and a push-to-talk button is arranged on the host, and the main controller MCU is bidirectionally connected with the vehicle-mounted device through a serial port, and the bluetooth module is connected to the A/D of the main controller MCU. The audio channel, the processing background and the vehicle equipment are also equipped with an audio modulation decoder, which separates the digital information in the voice channel sent by the Bluetooth module, or decodes the digital signal of the processing background and the vehicle equipment into an audio signal, and transmits it to the owner's mobile phone.

The working process of the present invention is as follows: a push-to-talk button is set on the vehicle-mounted equipment (such as audio-visual system host or navigation host), and after the button is pressed, the main controller MCU connected to the vehicle-mounted equipment is connected, and the voice call is connected through the Bluetooth module. Go to the car owner's mobile phone with Bluetooth function, dial the background processing call through the mobile phone, you will need to dial the phone to communicate with the processing background, the original mobile phone address book is preset in the processing background, and the voice recognition system is set in the background. After the voice recognition is confirmed, the background It is transmitted to the main controller MCU through DTMF/FSK, and the main controller MCU dials the required number through the Bluetooth mobile phone, thereby realizing the dialing function of the original mobile phone.

The processing background can be processed manually. After the background finds the corresponding dialing number information, it transmits it to the main controller MCU of the host. The main controller MCU dials the mobile phone of the car owner through the Bluetooth module, and uses the function of the mobile phone of the car owner to make a call.

Compared with the prior art, the innovation of the present invention is that the original car owner's mobile phone can make calls through Bluetooth, and the communication fee is still borne by the original car owner's mobile phone, which is clear, convenient and safe. With respect to its specific implementation manner, it can be realized according to the prior art. The invention will not be described in detail here.

Claims (3)

1. the mobile phone car phone means of communication based on Bluetooth function, mobile unit arranges PTT button, after button, namely the master controller MCU being connected to mobile unit is connected, car owner's mobile phone of band Bluetooth function is connected to by bluetooth module voice call, by mobile phone dialing process backstage phone, needs are called and processes backstage and link up, process backstage is prefixed former cell phone address book, process backstage arranges speech recognition system, after speech recognition is determined, corresponding phone information is found at former cell phone address book, process backstage is transferred to master controller MCU by DTMF/FSK, master controller MCU dials required number by bluetooth cellular phone, thus realize the dial feature of former mobile phone,

Described master controller MCU is bi-directionally connected by serial ports and mobile unit, described bluetooth module is communicated with the voice-grade channel of the A/D of master controller MCU, process backstage and mobile unit are also provided with voice modulation decoder, digital information in the speech channel send bluetooth module is separated, be maybe audio signal by the digital signal decoding of process backstage and mobile unit, be transferred to the car owner's mobile phone being with Bluetooth function;

Described communication rate are born by car owner's mobile phone;

Artificial treatment is carried out on described process backstage, after corresponding phone information is found on process backstage, is transferred to main frame master controller MCU.

2. one kind as claimed in claim 1 based on the communication apparatus of the mobile phone car phone means of communication of Bluetooth function, comprise car owner's mobile phone of band Bluetooth function, be arranged on the master controller MCU on mobile unit and carry out the process backstage of communication contact with car owner's mobile phone, mobile unit is provided with PTT button, described master controller MCU is bi-directionally connected by serial ports and mobile unit, described bluetooth module is communicated with the voice-grade channel of the A/D of master controller MCU, process backstage and mobile unit are also provided with voice modulation decoder, digital information in the speech channel send bluetooth module is separated, be maybe audio signal by process backstage and the digital signal decoding of mobile unit, be transferred to car owner's mobile phone of band Bluetooth function.

3. the mobile phone car phone communication apparatus based on Bluetooth function according to claim 2, is characterized in that, described mobile unit is vehicle-mounted audio-video main frame or navigation host.