KR20140098383A - The linked system between external device and vehicle audio video navigation and method thereof - Google Patents

The linked system between external device and vehicle audio video navigation and method thereof Download PDF

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Publication number
KR20140098383A
KR20140098383A KR1020130010915A KR20130010915A KR20140098383A KR 20140098383 A KR20140098383 A KR 20140098383A KR 1020130010915 A KR1020130010915 A KR 1020130010915A KR 20130010915 A KR20130010915 A KR 20130010915A KR 20140098383 A KR20140098383 A KR 20140098383A
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South Korea
Prior art keywords
external device
vehicle
head unit
image
avn
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KR1020130010915A
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Korean (ko)
Inventor
김조일
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쌍용자동차 주식회사
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Priority to KR1020130010915A priority Critical patent/KR20140098383A/en
Publication of KR20140098383A publication Critical patent/KR20140098383A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)

Abstract

Disclosed are a linking system between an external device and a vehicle AVN and a method thereof, capable of realizing various content of an external device like a smartphone on a display device of a vehicle (for example, AVN). The disclosed linking system between the external device and the vehicle AVN comprises the external device for receiving an operation signal from a head unit via wireless communications and outputting video and sound signals and control signals corresponding to the received operation signal via a high definition multimedia interface (HDMI) terminal; and the head unit for transmitting the operation signal to the external device via the wireless communications, receiving the video and sound signals and the control signals from the external device via the HDMI terminal, displaying the video on a touch screen and outputting the sound to a speaker, wherein the head unit, if it is connected to the external device via the HDMI terminal, displays the same video as the video, executed in the external device and displayed on a screen, on the touch screen, and wirelessly transmits the control signal in accordance with the operation of the touch screen to the external device.

Description

[0001] The present invention relates to a system and method for interlocking between an external device and a vehicle AVN,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interworking between an external device and a vehicle AVN (Audio Video Navigation). More specifically, the present invention relates to an external device, such as a smart phone, To a system and method for interworking between a device and a vehicle AVN.

Recently, an integrated system for audio / video / navigation (AVN) as a convenience device of a vehicle has been rapidly spreading. Such an AVN integrated system for a vehicle is a device configured by integrating an audio device, a multimedia device, and a navigation device in a vehicle, and can be accessed through a common user interface, and can be used for audio services such as radio, CD (Compact Disk) Disk), a navigation service such as a destination guidance function, and the like.

This vehicle AVN integrated system is configured to share a speaker, a display device, a key input unit, and the like, which is a user interface for audio service, video service and navigation service, so that when each audio device, video device and navigation device are separately provided It has several advantages such as elimination of redundant parts, convenience of operator operation, and provision of mixed services.

BACKGROUND ART [0002] Conventional technology for a vehicle AVN integrated system as well known is disclosed in Korean Patent Application Publication No. 10-2005-0010531 (published on January 28, 2005) (name of invention: vehicle navigation device).

The disclosed prior art includes a GPS antenna, a signal input terminal, a GPS module, a storage medium, a control unit, a video signal generator, a voice signal generator, a pulse generator, and the like. And by calculating the distance by the test pulse signal, it is possible to test the operation state even in a state in which the pulse signal is not applied from the vehicle speed sensor.

Meanwhile, an external device such as a smart phone can receive and execute various contents through a network (wireless Internet, wireless network, 3G network, or LTE network). Modern smartphones are computer-based rather than mobile-based, so they receive a variety of applications over the network, such as a regular computer, and run them to provide a variety of content to users.

1. Korean Patent Application Publication No. 10-2005-0010531 (published on January 28, 2005) (title of the invention: vehicle navigation device)

However, the conventional AVN system as described above is only capable of audio / video / navigation functions and can not provide various contents such as a smart phone.

In addition, although the general smartphone as described above can provide various contents, it has a disadvantage that it is impossible to operate it like a navigation while driving a vehicle. For example, since a smart phone is made portable, there is a limit in that a user can use information or check the screen contents during operation.

Accordingly, the present invention has been proposed in order to solve all the problems of the conventional audio / video / navigation and the disadvantages of using the smartphone in a vehicle, and it is an object of the present invention to provide a navigation device, The present invention provides a system and method for interworking between an external device and a vehicle AVN that can be implemented in an AVN.

Another object of the present invention is to provide a system and method for interworking between an external device and a vehicle AVN that displays a smart phone screen of a user through a vehicle display device and can operate a smartphone through operation of the vehicle display device There is a purpose.

According to an aspect of the present invention, there is provided a system for interworking between an external device and a vehicle AVN, the system including: an operation signal receiving unit operable to receive an operation signal via a wireless communication; Definition Multimedia Interface) terminal;

And a head unit for transmitting an operation signal through the wireless communication to the external device, receiving the image, sound and control signal output from the external device through the HDMI terminal, and displaying the image on the touch screen and outputting the sound to the speaker .

The wireless communication uses at least one of a short range wireless communication and a WiFi.

The head unit displays on the touch screen an image identical to the image displayed on the screen, executed by the external device when the head unit is connected to the external device through the HDMI, and converts the control signal corresponding to the operation of the touch screen into a wireless signal, To the mobile station.

According to another aspect of the present invention, there is provided a method of interworking between an external device and a vehicle AVN, the method comprising the steps of: (a) confirming whether an external device is connected through an HDMI terminal in a vehicle AVN;

(b) receiving transmission data of the external device via the HDMI terminal when the external device is connected through the HDMI terminal;

(c) If the vehicle is in a non-driving state, the control unit controls the presentation of images and sounds received through the HDMI terminal by interlocking with the external device, And transmitting the signal as a radio signal to the external device.

According to the present invention, the smartphone of the driver can be displayed on the in-vehicle display device, and the smart phone can be conveniently controlled through the in-vehicle display device.

In addition, according to the present invention, it is possible to utilize various smartphone applications (T-DMB, T-MAP) in an in-vehicle display device.

In addition, according to the present invention, since video and audio are transmitted without compression, video, audio, and data of a smartphone can be received and processed in an in-vehicle display device without a decoder chip or additional software.

1 is a schematic block diagram of an interworking system between an external device and a vehicle AVN according to the present invention.
Fig. 2 is a detailed block diagram of the head unit of Fig. 1; Fig.
FIG. 3 is a diagram illustrating a screen when an external device and a vehicle AVN are interlocked in the present invention. FIG.
4 is a flowchart illustrating a method of interworking between an external device and a vehicle AVN according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

≪ Example 1 >

FIG. 1 is a schematic configuration diagram of an interlock system between an external device and a vehicle AVN according to the present invention, and includes an external device 10 and a head unit 20. As shown in FIG.

The external device 10 receives an operation signal via wireless communication, and outputs an image, an acoustic signal, and a control signal corresponding to the received operation signal through an HDMI (High-Definition Multimedia Interface) terminal.

Here, HDMI is one of high-definition uncompressed digital video / audio interface standards for simultaneously transmitting digital video and audio signals over one cable. Since the video and audio are transmitted without compression, there is an advantage that the receiver chip does not need a decoder chip or additional software.

The head unit 20 transmits an operation signal through the wireless communication to the external device 10, receives the image, sound and control signal output from the external device 10 through the HDMI terminal, and outputs the image to the touch screen And outputs the sound to the speaker. The head unit 20 is a display device provided in a conventional vehicle. In the present invention, it is assumed that the AVN is a head unit.

The video, audio and control signals between the external device 10 and the head unit 20 are transmitted in the HDMI format. The wireless communication uses a wireless communication method such as short-range wireless communication such as Bluetooth or WiFi.

As shown in FIG. 2, the head unit 20 includes an HDMI terminal 21 for receiving a signal transmitted from the external device 10 in the HDMI system, a traveling information detecting unit 26, a touch screen 24 for displaying an image transmitted from the external device 10 on the screen and generating positional information of contact with the driver, and a storage unit for storing and processing the video and audio received from the HDMI terminal 21 A control unit 22 for transmitting the position information (x, y coordinate value) generated when the touch screen 24 is contacted to the wireless communication module 25, And a wireless communication module 25 for converting the position information into a wireless signal corresponding to the wireless communication scheme and transmitting the wireless signal to the external device 10 under the control of the controller 22.

The traveling information may include vehicle speed information and transmission information.

The control unit 22 stops the operation of the wireless communication module 25 when video, audio, and control data are received from the external device 10 through the HDMI terminal 21, The control is performed so as to be interlocked with the external device 10 only when the vehicle is not running.

The operation of the interlock system between the external device and the vehicle head unit (AVN) according to the present invention will be described in detail as follows.

First, the driver connects his / her smartphone as the external device 10 with the head unit 20 mounted on the vehicle via the HDMI cable.

The control unit 22 of the head unit 20 determines whether the current vehicle is traveling through the traveling information detecting unit 26 when it is determined that the external device 10 is connected through the HDMI terminal 21. Here, the travel information detecting unit 26 receives the vehicle speed information and the transmission information through the CAN communication with the vehicle control unit (TCU), and transmits the information to the control unit 22 as travel information.

The control unit 22 determines whether the vehicle is running based on the transmitted vehicle speed information and the transmission information. For example, if the vehicle speed information is 0 km, or if the transmission is in the neutral state (N) or the parking state (P), it is determined that the current vehicle is not traveling. Alternatively, if the state vehicle speed information is 1 km or more and the transmission is in the drive D state or in the low state (1, 2, or 3), it is determined that the vehicle is running.

As a result, if a vehicle is traveling, even if a specific signal is input through the HDMI terminal 21, the signal is stored in the storage unit 23, but is not interlocked with the external device 10. Thus, a safety accident due to the operation of the display device during driving can be prevented in advance.

As a result of the determination, if the vehicle is not traveling, it is checked whether the video, audio, and control signals transmitted from the external device 10 are received through the HDMI terminal 21, When a voice or a control signal is received, the control unit controls the received image to be displayed on the touch screen 24 and outputs the received voice to the outside through an audio output device. 3, the head unit 20 and the external device 10 are interlocked with each other, and the same image as the image actually displayed on the screen is displayed on the head unit 20 On the touch screen 24 of the touch screen. For example, it can be seen that an application executed in the external device 10 is executed in the actual head unit 20.

In this case, the screen displayed on the touch screen 24 of the head unit 20 may be said to be the same as the screen displayed on its own smartphone.

When a driver views a screen displayed on the touch screen 24 and inputs a function such as a function key or a scroll function through contact on the touch screen 24 for performing a specific function or the like, the coordinate information (x, y coordinates Value) is transmitted to the control unit 22. [

The control unit 22 confirms the status of the HDMI terminal 21 and transmits the position information to the wireless communication module 25 when the current video, audio, and control signals are not received. The wireless communication module 25 converts the received position information into a wireless signal conforming to a wireless communication standard for communicating with the external device 10 and transmits the wireless signal to the external device 10. For example, when the mobile terminal is currently connected to the external device 10 by a local area wireless communication system, the location information is transmitted as a radio signal of a local area wireless communication system, and when the local area is currently connected to the external device 10 via the Wi- And transmits the WiFi signal to the external device 10.

The external device 10 receives a wireless signal in a wireless communication mode connected to the head unit 20 and then executes an application corresponding to the received wireless signal and then transmits an image, To the head unit 20 via the HDMI terminal. Therefore, the driver simply operates the display device mounted on the vehicle, thereby actually operating his / her own smartphone.

≪ Example 2 >

4 is a flowchart illustrating a method of interworking between an external device and a vehicle AVN according to the present invention.

As shown in the figure, a method of interworking between an external device and a vehicle AVN as a head unit according to the present invention is as follows. (A) Whether an external device 10 is connected to the vehicle AVN 20 as a head unit through the HDMI terminal 21 (S11 to S12); (b) receiving transmission data of the external device (10) through the HDMI terminal (21) when the external device (10) is connected through the HDMI terminal (21); (c) checking the current vehicle operation state and restricting the image display if the vehicle is running, and if the vehicle is not running, interlocking with the external device (10) and displaying the image and sound received through the HDMI terminal (S15 to S18) of making a control signal as a radio signal to the external device; (d) executing an AVN function when the external device 10 is not connected as a result of the checking in step S12 (S13).

The method of interlocking between the external device and the vehicle AVN according to the present invention configured as described above is such that when the vehicle AVN as the head unit 20 is turned on in step S11, the control unit 22, in step S12, (10) is connected.

If the external device 10 is not connected as a result of the check, the process goes to step S13 and the main function of the AVN is executed according to the operation of the driver.

If the external device 10 is connected to the HDMI terminal 21, the process goes to step S14 to receive data (video, audio, control signal) transmitted from the external device 10 through the HDMI terminal 21.

Thereafter, the process goes to step S15 to analyze the vehicle information (vehicle speed information, transmission information) detected through the traveling information detecting unit 26 to determine whether the vehicle is traveling. As a result of the determination, if the current vehicle is running, the display of the image received from the external device 10 is restricted for safe operation (S16). That is, it is not operated in conjunction with the external device 10 for safe operation.

If the current vehicle is not running, the process proceeds to step S17 where it is linked to the external device 10, and then moves to step S18 to display the screen image of the external device 10 on the touch screen 24 as it is .

Thereafter, the driver manipulates his / her own smartphone through the operation of the touch screen 24. [ In addition, the head unit 20 utilizes various contents of the smartphone only. Although the contents available here are various, applications such as T-DMB and T-MAP highly activated in the smartphone can be executed in the head unit 20.

Since the head unit 20 and the external device 10 are connected by the HDMI interface method, the present invention is equipped with a decoder chip or other software for processing video and audio transmitted from the smart phone in the head unit 20 There is an advantage that it is easy to implement an interlocking system.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

10: External device 20: Head unit
21: HDMI terminal 22:
24: touch screen 25: wireless communication module
26:

Claims (4)

In an interworking system between an external device such as a smart phone and a vehicle AVN as a head unit,
An external device that receives an operation signal transmitted from the head unit through wireless communication, and outputs an image, an acoustic signal, and a control signal corresponding to the received operation signal through an HDMI (High-Definition Multimedia Interface) terminal;
And a head unit for transmitting an operation signal through the wireless communication to the external device, receiving the image, sound and control signal output from the external device through the HDMI terminal, and displaying the image on the touch screen and outputting the sound to the speaker And the vehicle AVN.
The interworking system according to claim 1, wherein the wireless communication uses at least one of a short-range wireless communication and a Wi-Fi (WiFi).
The head unit according to claim 1, wherein when the head unit is connected to the external device via the HDMI, the head unit displays on the touch screen an image identical to the image displayed on the screen, executed by the external device, And transmits the generated information to the external device.
In an interworking method between an external device and a vehicle AVN,
(a) confirming whether an external device is connected through the HDMI terminal in the vehicle AVN;
(b) receiving transmission data of the external device via the HDMI terminal when the external device is connected through the HDMI terminal;
(c) checking the current vehicle operation state to limit the image display if the vehicle is running, interlocking with the external device when the vehicle is not running, controlling the display of the image and sound received through the HDMI terminal, and And transmitting the wireless signal to the external device.
KR1020130010915A 2013-01-31 2013-01-31 The linked system between external device and vehicle audio video navigation and method thereof KR20140098383A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160051399A (en) * 2014-11-03 2016-05-11 엘지전자 주식회사 Mobile communication system and control method thereof
KR20220055994A (en) 2020-10-27 2022-05-04 (주)에이텍티앤 Vehicle display-linked taxi payment terminal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160051399A (en) * 2014-11-03 2016-05-11 엘지전자 주식회사 Mobile communication system and control method thereof
US9544414B2 (en) 2014-11-03 2017-01-10 Lg Electronics Inc. Mobile communication terminal, control method thereof, auxiliary terminal and vehicle
KR20220055994A (en) 2020-10-27 2022-05-04 (주)에이텍티앤 Vehicle display-linked taxi payment terminal

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