WO2012128497A2

WO2012128497A2 - In-car network device for smart car

Info

Publication number: WO2012128497A2
Application number: PCT/KR2012/001832
Authority: WO
Inventors: 염정원
Original assignee: 주식회사 텍포러스
Priority date: 2011-03-24
Filing date: 2012-03-14
Publication date: 2012-09-27
Also published as: WO2012128497A3; KR101224876B1; KR20120108519A

Abstract

The present invention relates to an in-car network device for a smart car, wherein a network is set up in a car to share contents, to support a tethering connection, and to enable a smart function in a car. The device of the present invention comprises: a network interface unit for setting up a network in a car; a storage for storing data; an audio codec for processing audio data to reproduce an audio signal; a speaker which transforms a reproduction signal of the audio codec into sound; a video codec which reproduces video data to display a still image or a video on an LCD; an adjustment unit for inputting an adjustment; and a microprocessor which sets the network interface unit to a client mode or an access point mode, and accesses the Internet through a smart phone connected by the network interface unit to use a service or to share and reproduce contents stored in the smart phone according to adjustments by the adjustment unit. The network interface unit according to the present invention is built in a telematics terminal provided in a car to set up a wireless network therein, so that a smart phone or the like can connect to an internal network to enable an Internet access service through tethering, and contents are shared to enable multimedia contents to be viewed through a relatively larger LCD, thereby providing convenience.

Description

In-vehicle network device for smart car

The present invention relates to an in-vehicle multimedia apparatus for playing multimedia contents in a vehicle. More particularly, the present invention relates to an in-vehicle network apparatus for a smart car that configures a network in a vehicle to share contents, supports tethering, and enables a smart car. It is about.

In recent years, with the improvement of economic power and the development of IT technology, it is possible to play various multimedia in a vehicle and use traffic information effectively using telematics.

On the other hand, as the spread of smartphones and tablet PCs is rapidly increasing, various service environments for smartphones and tablet PCs are being built. Conventionally, in order to provide a service interworking with a smartphone or a tablet PC in a vehicle, as shown in FIG. 1, an access point device (AP) for connecting the multimedia device 30 installed in the vehicle with the smartphone 10 (AP). : 20) separately installed to connect the smart phone 30 and the multimedia device 30 by wireless (WiFi, etc.). Therefore, in the related art, since the access point equipment 20 must be installed separately from the multimedia apparatus 30, the installation space in the vehicle becomes narrow and the arrangement becomes complicated.

The present invention has been proposed to solve the above problems, and an object of the present invention is to construct a wireless network in a vehicle by embedding a network interface unit in a telematics terminal mounted on a vehicle, and the contents according to the DLNA protocol through the wireless network. It is to provide an in-vehicle network device for a smart car that can be shared.

In order to achieve the above object, the device of the present invention comprises a network interface unit for configuring an in-vehicle network; And a central processing unit connected to the smart terminal through the network interface unit according to the DLNA protocol and connected to the Internet through a tethering connection through the smart terminal or reproducing the content received from the smart terminal with a multimedia player. It is done.

The in-vehicle network device is implemented in a three-top box type for displaying a video signal reproduced by the central processing unit on a genuine LCD separately installed in a vehicle, or a buried type further including its own LCD for displaying a video signal reproduced by the central processing unit. Or an A / V module for playing audio or video discs and receiving radios, and an own LCD for displaying a video signal played by the central processing unit or a video signal played by the A / V module. It can be implemented in one all-in-one type.

According to the present invention, a network interface unit is built into a telematics terminal installed in a vehicle to configure a wireless network in a vehicle, and a smart phone or the like is connected to an internal network according to a DLNA protocol to enable internet access service through tethering and contents. It is convenient to see multimedia contents through a relatively large LCD screen by sharing.

1 is a schematic diagram illustrating a concept of conventionally connecting a multimedia device to a network;

2 is an example of implementing an in-vehicle network with a set-top box type telematics terminal according to the present invention;

3 is a detailed block diagram of the central processing unit shown in FIG. 2;

4 is an example of implementing an in-vehicle network with a buried telematics terminal according to the present invention;

5 is an example of implementing an in-vehicle network with an all-in-one telematics terminal according to the present invention;

6 is a flowchart illustrating a procedure of sharing and playing content according to the present invention;

7 is a hierarchical diagram of the DLNA protocol used in the present invention.

The technical problems achieved by the present invention and the practice of the present invention will be more clearly understood by the preferred embodiments of the present invention described below. The following examples are merely illustrated to illustrate the present invention and are not intended to limit the scope of the present invention.

2 is an example of implementing an in-vehicle network with a three-top box (STB) type telematics terminal according to the present invention, and FIG. 3 is a detailed configuration example of the central processing unit shown in FIG. 2.

As shown in FIG. 2, the set-top box (STB) type telematics terminal 100 according to the present invention includes a central processing unit 110 that performs a telematics function, a DLNA protocol processing function, and a multimedia player function, and a central processing unit ( In accordance with the command of 110 to operate in an access point mode or a client mode, the network interface unit 120 to provide a wireless communication service according to a wireless communication protocol is configured to provide a display signal to the genuine LCD 50 installed in the vehicle A wireless network (such as WiFi) is configured in the vehicle, and smart terminals such as a smart phone 10 or a tablet PC are connected through the wireless network.

The STB-type telematics terminal 100 may be embedded in any place in the vehicle and installed with a genuine LCD 50 and a cable at the time of installation.

Referring to FIG. 2, as shown in FIG. 3, the central processing unit 110 processes a DLNA protocol processor 112 for processing a DLNA protocol, a multimedia player 114 for reproducing multimedia data, and a telematics function. The telematics processing unit 116 operates the network interface unit 120 in the client mode and operates the smart phone 10 in the access point (AP) mode to connect to the Internet through the smart phone 10 in a tethered manner or to a network. Operate the interface 120 in the access point (AP) mode and connected to the smart phone 10 according to the DLNA protocol to play the content received from the smart phone 10 to output the video signal to the genuine LCD 50 do.

The network interface unit 120 supports a connection according to a wireless network (WiFi, etc.), and operates in a client mode under the control of the central processing unit 110, and connects to the Internet through a tethering connection through the smart phone 10. And, while operating in the access point (AP) mode receives the content from the smart phone 10 and delivers to the central processing unit (110). Here, Wi-Fi is a brand name of the Wi-Fi Alliance, a set of technologies that support IEEE 802.11-based wireless LAN connection and device-to-device connection (Wi-Fi P2P), PAN / LAN / WAN configuration, etc. It means. The original Wi-Fi was actually used synonymously with IEEE 802.11, but now Wi-Fi includes many software technologies based on 802.11. Many modern operating systems support Wi-Fi, so you can use Wi-Fi with smartphones, cell phones, PDAs, desktops, notebook computers, and netbooks.

The smart phone 10 is connected to the mobile communication network 40 through a WCDMA communication method and is connected to the network interface unit 120 through an in-vehicle wireless network (WiFi) to connect the in-vehicle telematics terminal 100 to the Internet. It provides a connection connection function or transmits the content to the telematics terminal (100). As described above, according to the present invention, it is possible to provide tethering connection through the smart phone 10 to terminals installed in the vehicle, thereby providing Internet access to the in-vehicle terminals.

4 is an example of implementing an in-vehicle network with a buried telematics terminal according to the present invention.

As shown in FIG. 4, the embedded telematics terminal 200 according to the present invention includes a central processing unit 210, a network interface unit 220 for providing a wireless communication service according to a wireless communication protocol, and its own LCD 240. ) To configure a wireless network (WiFi, etc.) in the vehicle, and connected mobile terminals such as the smart phone 10 through the wireless network. The embedded telematics terminal 200 according to the present invention may be embedded in or on the dashboard of the vehicle, and may be embedded in a genuine 2-DIN audio seat.

Referring to FIG. 4, the central processing unit 210 includes the same configuration as shown in FIG. 3 and operates the network interface unit 220 in a client mode, and then uses the smart phone 10 to tether the Internet. Accessing or operating the network interface unit 220 in an access point mode, and reproduces the video signal received from the smart phone 10 through the network interface unit 220 according to the DLNA protocol, and outputs a video signal to its own LCD 240. Will output

The network interface unit 220 supports a connection according to a wireless network (WiFi, etc.) method, and operates in a client mode under the control of the central processing unit 210 and connects to the Internet through a tethering connection through the smart phone 10. And, while operating in the access point (AP) mode receives the content from the smart phone 10 and delivers to the central processing unit (210). Here, Wi-Fi (WiFi) is a brand name of the Wi-Fi Alliance, a set of technologies that support IEEE 802.11-based wireless LAN connection, device-to-device connection (Wi-Fi P2P), PAN / LAN / WAN configuration, etc. do. The original Wi-Fi was actually used synonymously with IEEE 802.11, but now Wi-Fi includes many software technologies based on 802.11. Many modern operating systems support Wi-Fi, so you can use Wi-Fi with smartphones, cell phones, PDAs, desktops, notebook computers, and netbooks.

The smart phone 10 is connected to the mobile communication network 40 by the WCDMA communication method and the network interface 220 through an in-vehicle wireless network (WiFi, etc.), and the telematics terminal 200 in the vehicle is connected to the Internet. It provides a tethering connection function to connect or transmit the content to be played to the telematics terminal 200 through the network interface 220.

5 is an example of implementing an in-vehicle network with an all-in-one type telematics terminal according to the present invention.

As shown in FIG. 5, the all-in-one telematics terminal 300 according to the present invention includes a central processing unit 310, a network interface unit 320 for providing a wireless communication service according to a wireless communication protocol, and its own LCD ( 340, the CD / DVD module 350, and the radio module 360 constitute a wireless network (WiFi, etc.) in a vehicle, and connect mobile terminals such as the smart phone 10 through the wireless network. . The all-in-one telematics terminal 300 according to the present invention is installed in the genuine 2-DIN audio seat of the vehicle. Here, the CD / DVD module 350 and the radio module 360 are collectively referred to as an A / V module.

Referring to FIG. 5, the central processing unit 310 is connected to the smart phone 10 through the network interface unit 320 as described above and connected to the Internet in a tethering manner or through the network interface unit 320. The content received from the smartphone 10 is played back, and in the SD / DVD mode, the CD / DVD module 350 plays the CD or DVD inserted into the tray, and in the radio mode, the radio module 360 broadcasts. To receive.

The network interface unit 320 enables wireless connection of a wireless network (WiFi, etc.), its LCD 340 displays a video signal output from a central processing unit or a DVD module, and the DVD module 350 is mounted on a tray. Play the inserted CD or DVD, the radio module 360 receives the broadcast.

Next, the concept of sharing content in a vehicle according to the present invention will be described.

5 is a flowchart illustrating a procedure of sharing and playing content according to the present invention.

First, in the

telematics terminal

100, 200, 300 according to the present invention, the

network interface units

120, 220, and 320 are connected to the

central processing unit

110, 210, and 310 by a wired or wireless or PCB of the board, and the

network interface units

120, 220, and 320 are access points (AP). The mode is set. The smart phone 10 is connected to the

network interface unit

120, 220, 320 through an in-vehicle wireless network (WiFi) so that contents can be shared with the in-

vehicle telematics terminals

100, 200, 300 and DLNA (Digital Living Network Alliance) technology. .

DLNA is a standardization organization and protocol that allows users to freely use the contents they want by connecting multimedia devices in the home. It was formed in 2003 by Intel, Sony, and Microsoft. DLNA provides a standard guide for sharing and interoperating content among digital AV media devices connected to home networks in the home. DLNA adopts the UPnP device architecture that discovers and controls the device, and the UPnP AV architecture technology that defines the interaction between the AV device and the control point, and classifies them into device classes as shown in Table 1 below.

Table 1

Device category	Device class	function
Home network devices	Digital Media Server (DMS)	Store and provide content
	Digital Media Player (DMP)	Search and play content
	Digital Media Renderer (DMR)	Remote control playback
	Digital Media Controller (DMC)	Content delivery control
	Digital Media Printer (DMPr)	Print content
Mobile Handheld Diabis	Mobile Digital Media Server (MDMS)	Mobile DMS
	Mobile Digital Media Player (MDMP)	Mobile DMP
	Mobile Digital Media Uploader (MDMU)	upload
	Mobile Digital Media Downloader (MDMD)	Download
	Mobile Digital Media Controller (MDMC)	Mobile DMC
Home interface device	Mobile Network Connectivity Function (M-NCF)	Network connection
Home interface device	Media Interoperability Unit (MIU)	Transformation for Interoperability

DLNA also has a hierarchical protocol structure, as shown in FIG.

As described above, according to the present invention, various terminals are connected to each other through an in-vehicle network to share contents and to exchange various information to implement a smart car.

Referring to FIG. 5, the smart phone 10 searches for a

telematics terminal

100, 200, 300 having an access point function through a network search, and the smart phone 10 and the

telematics terminals

100, 200, 300 according to the DLNA (Digital Living Network Alliance) protocol. Connected (S1, S2).

According to the DLNA protocol, the smart phone 10 and the

telematics terminals

100, 200, and 300 may share content, and thus, the content stored in the smart phone 10 having a small LCD screen is transmitted to the

telematics terminals

100, 200, and 300 to be reproduced by the telematics terminal. It is possible to play the multimedia content through the relatively large LCD screen (S3, S4).

The present invention has been described above with reference to one embodiment shown in the drawings, but those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Claims

A network interface unit for configuring an in-vehicle network; And

The network interface unit is operated in a client mode and connected to the Internet through a tethering method through a smart terminal, or the network interface unit is operated in an access point (AP) mode and connected to the smart terminal according to a DLNA protocol and received from the smart terminal. In-vehicle network device for a smart car, characterized in that the central processing unit for playing the content is configured integrally.
The in-vehicle network device according to claim 1,

In-vehicle network device for a smart car, characterized in that implemented in a three-top box type to display the video signal reproduced by the central processing unit on the genuine LCD separately installed in the vehicle.
The in-vehicle network device according to claim 1,

In-vehicle network device for a smart car, characterized in that the central processing unit is implemented in a buried type further comprising its own LCD for displaying the video signal to be reproduced.
The in-vehicle network device according to claim 1,

All-in-one type further comprising an A / V module for playing audio or video discs and receiving radios, and its own LCD for displaying video signals played by the central processing unit or video signals played by the A / V module. In-vehicle network device for a smart car, characterized in that implemented in.
According to claim 1, wherein the central processing unit

An in-vehicle network device for a smart car, comprising a DLNA protocol processor for processing a DLNA protocol, a multimedia player for reproducing multimedia data, and a telematics processor for processing a telematics function.