KR20130019916A - Multi-media system by using blutooth communication and control method thereof - Google Patents

Multi-media system by using blutooth communication and control method thereof Download PDF

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Publication number
KR20130019916A
KR20130019916A KR1020110082221A KR20110082221A KR20130019916A KR 20130019916 A KR20130019916 A KR 20130019916A KR 1020110082221 A KR1020110082221 A KR 1020110082221A KR 20110082221 A KR20110082221 A KR 20110082221A KR 20130019916 A KR20130019916 A KR 20130019916A
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KR
South Korea
Prior art keywords
data
profile
bluetooth
bluetooth communication
terminal
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KR1020110082221A
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Korean (ko)
Inventor
이규철
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현대모비스 주식회사
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Priority to KR1020110082221A priority Critical patent/KR20130019916A/en
Publication of KR20130019916A publication Critical patent/KR20130019916A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE: A multimedia system using bluetooth communication and a control method thereof are provided to transmit and receive mass data between a portable terminal and a multimedia system by using an SPP(Serial Port Profile) of the bluetooth communication. CONSTITUTION: A bluetooth communication unit(210) supports wireless connection with a bluetooth terminal according to a profile provided from the bluetooth terminal. A control unit processes data transmitted from the bluetooth terminal. The control unit displays the processed data on a screen. The bluetooth communication unit searches the profile provided from the bluetooth terminal. The bluetooth communication unit classifies the searched profile according to the set priority. The bluetooth communication unit gradually supports wireless connection according to the set priority. [Reference numerals] (10) Bluetooth terminal; (210) Bluetooth communication unit; (220) Bluetooth reception unit; (230) Data processing unit; (240) Display unit; (250) Data transmitting unit

Description

Multi-media system by using Blutooth communication and Control method

The present invention relates to a multimedia system and a control method thereof, and more particularly, to a multimedia system using Bluetooth communication that enables transmission and reception of a large amount of data between a portable device and a multimedia system using a serial port profile (SPP) of Bluetooth communication. And a control method thereof.

The conventional Bluetooth audio system is connected to a mobile terminal, which is a music file such as MP3 and the like by Bluetooth to wirelessly download the music file from the mobile terminal to store in the memory. Accordingly, the conventional Bluetooth audio system plays and outputs music files stored in the memory.

1 is a block diagram showing a real-time control system of a music file of a mobile terminal according to the prior art and its configuration.

As shown in FIG. 1, the real-time control system 100 of the music file of the mobile terminal 200 according to the related art includes a control unit 110, a short range wireless communication module 120, a display unit 130, and a key input unit 140. ) And the output unit 150 and the like.

The controller 110 forms a pairing relationship with the short range wireless communication module 230 of the mobile terminal 200 through a known pairing procedure using the short range wireless communication module 120. The controller 110 transmits a list transmission request of the music file stored in the mobile terminal 200 to the mobile terminal 200. Herein, the control unit 110 receives a music file play mode (CD / AUX button of FIG. 2) by the mobile terminal 200 through a key input unit 140 from a user, and the mobile terminal 200 connected by short-range wireless communication. And a pairing relationship with the mobile terminal 200 to transmit a list transmission request of the music file stored in the memory 210 of the mobile terminal 200.

As disclosed in the above-described prior art, the prior art focuses on remote operation and audio streaming technology using Bluetooth communication, which makes it difficult to transmit and receive large amounts of data including image data and complicated control data, and thus displays detailed screens or details. There was a problem that can not provide a specialized control method.

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a multimedia system and a control method thereof, which enable large-capacity data transmission and reception between a portable device and a multimedia system using a serial port profile (SPP) of Bluetooth communication. do.

Another object of the present invention is to provide a multimedia system and a method of controlling the same, which provide a platform capable of executing an application installed in a portable device remotely using the SPP.

The object of the present invention is not limited to the above-mentioned object, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a multimedia system using Bluetooth communication, the Bluetooth communication unit supporting a wireless connection with the Bluetooth terminal according to a profile provided by the Bluetooth terminal; And a controller for processing the data transmitted from the Bluetooth terminal and displaying the same on a screen.

The Bluetooth communication unit searches for a profile provided by the Bluetooth terminal, classifies the searched profile according to a preset priority, and sequentially supports wireless connection according to the priority.

The profile may be at least one of a Hands Free Profile (HFP), an Advanced Audio Distribution Profile (A2DP), an Audio Video Remote Control Profile (AVRCP), a Phone Book Access Profile (PBAP), and a Serial Port Profile (SPP).

The control unit includes a data receiving unit and a data processing unit. When data is transmitted from the Bluetooth terminal through the connection with the SPP, the Bluetooth communication unit removes a header for transmitting the SPP from the transmitted data, and then buffers the buffer. The data receiving unit removes the data used for the protocol from the data stored in the buffer, transmits the data to the data processing unit, and the data processing unit divides the transmitted data into display data and status data.

In addition, the multimedia system according to the present embodiment further includes a data transmitter for generating transmission data according to a user's input or internal state change, wherein the data transmitter is a protocol for communicating the generated data with the Bluetooth terminal. And then process the processed data for SPP transfer.

According to another aspect of the present invention, there is provided a method of controlling a multimedia system using Bluetooth communication, the method including searching for a profile provided by a Bluetooth terminal, classifying the searched profile according to a predetermined priority, and sequentially according to the priority. Supporting a wireless connection with the Bluetooth terminal, processing the data transmitted through the connected profile.

According to the present invention, the screen information displayed by the mobile device is displayed on the display unit of the vehicle and the mobile device can be operated through the operation unit of the vehicle, whereby the driver's convenience and safety can be achieved. In particular, by prioritizing the automatic search and automatic connection of the Bluetooth profile supported by the mobile device, it can provide convenience to the user and increase the stability of the system.

1 is a block diagram showing a real-time control system of a music file of a mobile terminal according to the prior art and its configuration.
2 is a block diagram showing the configuration of a multimedia system according to an embodiment of the present invention.
3 is a flowchart illustrating a data reception control method in a multimedia system according to an embodiment of the present invention.
4 is a flowchart illustrating a data transmission control method in a multimedia system according to an embodiment of the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

 2 is a block diagram showing the configuration of a multimedia system according to an embodiment of the present invention.

As shown, the multimedia system 200 according to the embodiment of the present invention is a Bluetooth communication unit 210, data receiving unit 220, data processing unit 230, display unit 240, data transmission unit 250 It includes.

The Bluetooth communication unit 210 supports wireless connection of the multimedia system 200 according to the profile provided by the Bluetooth terminal 10. In more detail, the Bluetooth communication unit 210 establishes a pairing relationship with an external Bluetooth terminal 10 through, for example, a known pairing procedure with a Bluetooth module mounted in a smart phone, MP3 player, or other portable device. At this time, the function that the multimedia system 200 can provide varies according to a profile provided by the external Bluetooth terminal 10. Looking at the profile provided by the Bluetooth terminal 10 is as follows.

Advanced Audio Distribution Profie (A2DP) provides stereo sound service, Audio Video Remote Control Profile (AVRCP) provides the control function of Bluetooth terminal 10, and Serial Port Profile (SPP) with Bluetooth terminal 10 Provides data transmission / reception.

The Bluetooth communication unit 210 searches for a profile provided by the Bluetooth terminal 10 during the pairing procedure described above, classifies the searched profile according to a preset priority, and sequentially supports wireless connection according to the priority. do. For example, the priority may be set as follows according to the importance of the function provided by the Bluetooth terminal 10 through the profile.

-Phone function: HFP (Hands Free Profile)

-Voice signal: A2DP (Advanced Audio Distribution Profile)

Control: AVRCP (Audio Video Remote Control Profile)

-Phonebook: Phone Book Access Profile (PBAP)

-Data transmission and reception: SPP (Serial Port Profile)

An object of the present invention is to provide a method of controlling a Bluetooth terminal 10 using a profile provided by the Bluetooth terminal 10 and displaying screen information of the Bluetooth terminal 10 on the multimedia system 200. In particular, the multimedia system 200 receives text / image / voice (music) information of the Bluetooth terminal 10 by using the SPP that provides data transmission / reception function among the above-described profiles, outputs it through a screen or a speaker, and outputs the Bluetooth terminal. By establishing an environment in which the control method required by (10) can be provided, the driver can directly operate the Bluetooth terminal 10 while driving to prevent distraction of the driver, and has a function of the Bluetooth terminal 10. By indirectly provided by the multimedia system 200, there is an advantage that can compensate for the disadvantages of the standard audio of the car (for example, network connection and the installation of the application of various functions, etc.).

When data is transmitted from the Bluetooth terminal 10 through the SPP, the data receiver 220 performs preprocessing on the transmitted data and transmits the data to the data processor 230. In detail, the data receiver 220 removes a header for transmitting the SPP from the transmitted data and stores the header in a buffer such as a circular queue. In addition, the data receiver 220 removes the data used in the protocol from the data stored in the buffer, and transmits it to the data processor 230.

Data transmitted from the Bluetooth terminal 10 through the SPP should follow the guidelines of a specific format. For example, when transmitting / receiving a large amount of data according to the SPP transmission / reception limit, a process of concatenating each frame should be performed. In particular, a large amount of data such as an image may be compressed using a compression algorithm such as JPEG. Work should be taken to minimize the amount of transmission.

The data processor 230 divides the transmitted data into display data and status data. The transmission data from which the data used for the header and the protocol are removed is composed of display data such as an image or voice and state data having processing information thereof. The data processing unit 320 displays the data according to the data type information previously promised. The data is divided into data and state data, and then the display data is transmitted to the display unit 240 after decoding the data according to the characteristics of the data, and the state data is used for internal state processing.

The data transmitter 250 generates transmission data according to a user's input or internal state change and transmits the data to the Bluetooth terminal 10. The generated data is temporarily stored in a circular queue or buffer for delivery and processed in accordance with the transport protocol.

The processed data undergoes a packaging step for SPP transmission in the data transmitter 250 and is transmitted to the Bluetooth terminal 10 through the Bluetooth communication unit 210.

A method of receiving data in a multimedia system according to another embodiment of the present invention will be described with reference to FIG. 3. 3 is a flowchart illustrating a data reception control method in a multimedia system according to an embodiment of the present invention.

As shown, the multimedia system 200 searches for a profile provided by the Bluetooth terminal 10 during the pairing procedure with the Bluetooth terminal 10 (S310), and classifies the searched profile according to a preset priority. In operation S320, the wireless connection is sequentially supported according to the priority (S330). Here, the process of performing pairing according to the provided profile information, priority information, and priority information is as described above, and thus a detailed description thereof will be omitted.

Thereafter, the multimedia system 200 processes the data transmitted through the connected profile. In particular, when data is transmitted from the Bluetooth terminal 10 through the connection with the SPP, a header for transmitting the SPP in the transmitted data is provided. After removing the data stored in the buffer (S340) and removing the data used for the protocol from the data stored in the buffer (S350), it is divided into display data and state data (S360).

After the data processing process, the divided display data is transmitted to the display unit 240 after decoding the data according to the characteristics of the data as described above, and the state data is used for internal state processing.

4 is a flowchart illustrating a data transmission control method in a multimedia system according to an embodiment of the present invention.

As shown, the multimedia system 200 generates transmission data according to a user's input or internal state change (S410), and processes the generated data according to a protocol for communication with the Bluetooth terminal 10 (S420). ). Thereafter, the processed data is packaged for SPP transmission (S430), and the packaged data is transmitted through a wireless connection with the Bluetooth terminal 10 (S440).

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

Claims (9)

A Bluetooth communication unit supporting a wireless connection with the Bluetooth terminal according to a profile provided by the Bluetooth terminal; And
Control unit for processing the data transmitted from the Bluetooth terminal to display on the screen
Multimedia system using a Bluetooth communication comprising a. According to claim 1, The Bluetooth communication unit,
Searching for a profile provided by the Bluetooth terminal, classifying the searched profile according to a predetermined priority, and sequentially supporting wireless connection according to the priority;
System using Bluetooth communication. The method of claim 1, wherein the profile,
At least one of HFP (Hands Free Profile), A2DP (Advanced Audio Distribution Profile), AVRCP (Audio Video Remote Control Profile), PBAP (Phone Book Access Profile), and SPP (Serial Port Profile)
System using Bluetooth communication.
The method of claim 3, wherein the control unit is composed of a data receiving unit and a data processing unit,
When data is transmitted from the Bluetooth terminal through the connection with the SPP,
The Bluetooth communication unit removes the header for the SPP transmission from the transmitted data, and stores it in a buffer,
The data receiver removes the data used in the protocol from the data stored in the buffer, and then transmits the data to the data processor.
The data processing unit divides the transmitted data into display data and status data.
System using Bluetooth communication. The method of claim 1,
The apparatus may further include a data transmitter configured to generate transmission data according to a user input or a change in an internal state.
The data transmitter is to process the generated data in accordance with the protocol for communication with the Bluetooth terminal, and to package the processed data for SPP transmission
System using Bluetooth communication. In the control method of the multimedia system for displaying data provided by the Bluetooth terminal,
Searching for a profile provided by the Bluetooth terminal;
Classifying the searched profile according to a preset priority;
Supporting wireless connection with the Bluetooth terminal sequentially according to the priority; And
Processing the data transmitted via the connected profile
Method of controlling a multimedia system using a Bluetooth communication comprising a. The method of claim 6, wherein the profile,
At least one of HFP (Hands Free Profile), A2DP (Advanced Audio Distribution Profile), AVRCP (Audio Video Remote Control Profile), PBAP (Phone Book Access Profile), and SPP (Serial Port Profile)
Method of controlling multimedia system using Bluetooth communication. The method of claim 7, wherein when data is transmitted from the Bluetooth terminal through connection with the SPP, processing the data includes:
Removing a header for SPP transmission from the transmitted data and storing the header in a buffer; And
Removing data used for the protocol from the data stored in the buffer, and then dividing the data into display data and state data.
Method of controlling multimedia system using Bluetooth communication. The method according to claim 6,
Generating transmission data according to a user input or a change in an internal state;
Processing the generated data according to a protocol for communication with the Bluetooth terminal, and packaging the processed data for SPP transmission; And
Transmitting the packaged data through a wireless connection with the Bluetooth terminal;
Control method of a multimedia system using Bluetooth communication further comprising.
KR1020110082221A 2011-08-18 2011-08-18 Multi-media system by using blutooth communication and control method thereof KR20130019916A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104093216A (en) * 2014-06-16 2014-10-08 小米科技有限责任公司 Method and device for wireless data transmission
KR20150120063A (en) * 2014-04-17 2015-10-27 정익승 System for testing photo printer based on near field communication and method thereof
US9451549B2 (en) 2014-05-09 2016-09-20 Hyundai Motor Company Method for controlling a bluetooth connection
US9468027B2 (en) 2014-05-08 2016-10-11 Hyundai Motor Company Method for controlling a Bluetooth connection
US9525963B2 (en) 2014-05-09 2016-12-20 Hyundai Motor Company Method for controlling a Bluetooth connection
KR20180086873A (en) * 2017-01-24 2018-08-01 현대자동차주식회사 Method for providing of remote control service in vehicle and vehicle thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150120063A (en) * 2014-04-17 2015-10-27 정익승 System for testing photo printer based on near field communication and method thereof
US9468027B2 (en) 2014-05-08 2016-10-11 Hyundai Motor Company Method for controlling a Bluetooth connection
US9451549B2 (en) 2014-05-09 2016-09-20 Hyundai Motor Company Method for controlling a bluetooth connection
US9480020B2 (en) 2014-05-09 2016-10-25 Hyundai Motor Company Method for controlling a bluetooth connection
US9525963B2 (en) 2014-05-09 2016-12-20 Hyundai Motor Company Method for controlling a Bluetooth connection
CN104093216A (en) * 2014-06-16 2014-10-08 小米科技有限责任公司 Method and device for wireless data transmission
KR20180086873A (en) * 2017-01-24 2018-08-01 현대자동차주식회사 Method for providing of remote control service in vehicle and vehicle thereof

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