KR20160112554A

KR20160112554A - Vehicle, communicating method thereof and wireless communication apparatus therein

Info

Publication number: KR20160112554A
Application number: KR1020150038478A
Authority: KR
Inventors: 김성운; 강경현
Original assignee: 현대자동차주식회사
Priority date: 2015-03-19
Filing date: 2015-03-19
Publication date: 2016-09-28

Abstract

A vehicle relates to a vehicle performing communications with an external device by using a beam pattern comprising: a wireless communications unit for forming a beam pattern for wireless communications; and a control unit for obtaining the location information of a fixed target of which the position is fixed and controlling the wireless communications unit to form the beam pattern toward the fixed target. The control unit can control the wireless communications unit to reform the beam pattern according to a relative position of the fixed target based on the vehicle.

Description

TECHNICAL FIELD [0001] The present invention relates to a vehicle, a communication method of the vehicle, and a wireless communication apparatus included in the vehicle.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle, a communication method of a vehicle, and a wireless communication apparatus included in a vehicle, and more particularly to a vehicle, a vehicle communication method, and a wireless communication apparatus included in a vehicle.

Generally, a vehicle refers to a transportation device that travels on a road or a line using fossil fuel, electricity, or the like as a power source.

In recent years, it has become common to include an audio device and a video device so that a driver can listen to music while driving and watch video images in addition to simply transporting materials and manpower. A navigation device (navigation device) ) Devices are also widely installed.

In recent years, there is an increasing need for a vehicle to communicate with an external device.

For example, in the case of a navigation function that guides a route to a destination, information on traffic conditions of the road is required to retrieve the optimal route. Since the traffic situation changes occasionally, the vehicle needs to acquire information on the traffic situation in real time.

Accordingly, an aspect of the disclosed invention is to provide a vehicle including a wireless communication device for communicating with an external vehicle, an external terminal, or a wireless communication base station, and a control method thereof.

According to an aspect of the disclosed subject matter, there is provided a vehicle communicating with an external device using a beam pattern, comprising: a wireless communication unit forming the beam pattern for wireless communication; And a controller for controlling the wireless communication unit to obtain the position information of the fixed target having the fixed position and to form the beam pattern toward the fixed target, wherein the control unit controls the relative position of the fixed target Thereby controlling the wireless communication unit to re-form the beam pattern.

According to the embodiment, when the relative position of the fixed target is changed in accordance with the running of the vehicle, the control unit may control the wireless communication unit to regenerate a beam pattern directed to the changed position.

The controller may control the wireless communication unit to set a fixed target corresponding to the position of the traveling obstacle and to generate a beam pattern toward the fixed target when the traveling obstacle is detected during traveling of the vehicle according to the embodiment have.

A position information obtaining unit for obtaining absolute position information of the vehicle according to an embodiment; And a radar module for obtaining relative position information of the fixed target with reference to the vehicle, wherein the control unit controls the absolute position information of the fixed target based on absolute position information of the vehicle and relative position information of the fixed target, Can be obtained.

When a request to form a beam pattern from the external device to the fixed target is received, the control unit forms a beam pattern toward the fixed target based on absolute position information of the fixed target received from the external device The wireless communication unit can be controlled.

According to an embodiment, when the relative position of the fixed target is changed, the control unit may determine whether the beam pattern reaches the fixed target.

According to an embodiment, when the beam pattern reaches the fixed target, the control unit may control the wireless communication unit to generate a beam pattern toward the fixed target.

According to the embodiment, when the beam pattern can not reach the fixed target, the control unit can transmit the position information of the fixed target to the nearby vehicle using the wireless communication unit.

According to an aspect of the present invention, there is provided a communication method of a vehicle communicating with an external device using a beam pattern, the method comprising: acquiring position information of a fixed target having a fixed position; Forming the beam pattern toward the fixed target; And re-forming the beam pattern according to the relative position of the fixed target with reference to the vehicle.

According to another embodiment of the present invention, the step of re-forming the beam pattern may include a step of re-forming a beam pattern directed to the changed position when the relative position of the fixed target is changed according to traveling of the vehicle.

The step of acquiring the position information of the fixed target according to the embodiment may include a step of setting a fixed target corresponding to the position of the traveling obstacle when the traveling obstacle is detected during traveling of the vehicle.

The step of acquiring position information of the fixed target according to the embodiment may include acquiring absolute position information of the vehicle; Obtaining relative position information of the fixed target based on the vehicle; And acquiring absolute position information of the fixed target based on the absolute position information of the vehicle and the relative position information of the fixed target.

The step of acquiring the position information of the fixed target according to the embodiment may further include the step of receiving absolute position information of the fixed target received from the external device when a beam pattern formation request from the external device to the fixed target is received Process.

The step of re-forming the beam pattern may include determining whether the beam pattern reaches the fixed target when the relative position of the fixed target is changed.

The step of re-forming the beam pattern according to the embodiment may further include the step of generating a beam pattern toward the fixed target when the beam pattern reaches the fixed target.

The step of re-forming the beam pattern according to the embodiment may further include the step of transmitting position information of the fixed target to the neighboring vehicle using the wireless communication unit when the beam pattern can not reach the fixed target .

According to an aspect of the present invention, there is provided a vehicular wireless communication apparatus included in a vehicle communicating with an external apparatus using a beam pattern, the vehicular wireless communication apparatus comprising: a wireless communication unit forming the beam pattern for wireless communication; And a controller for controlling the wireless communication unit to obtain the position information of the fixed target having the fixed position and to form the beam pattern toward the fixed target, wherein the control unit controls the relative position of the fixed target Thereby controlling the wireless communication unit to re-form the beam pattern.

The vehicle-mounted wireless communication apparatus may further include: a position information obtaining unit that obtains absolute position information of the vehicle; And a radar module for obtaining relative position information of the fixed target with reference to the vehicle, wherein the control unit controls the absolute position information of the fixed target based on absolute position information of the vehicle and relative position information of the fixed target, Can be obtained.

According to an aspect of the disclosed invention, there is provided a vehicle including a wireless communication device for communicating with an external vehicle, an external terminal, or a wireless communication base station, and a control method thereof.

1 shows an appearance of a vehicle according to an embodiment.
Figure 2 shows the interior of the vehicle according to one embodiment.
3 shows various electronic devices included in a vehicle according to an embodiment.
4 shows a wireless communication device included in a vehicle according to an embodiment.
5, 6A, 6B and 6C are views for explaining the fifth generation communication method.
FIG. 7 illustrates a wireless signal conversion module included in a vehicle according to an embodiment.
Figure 8 shows a beamforming module included in a vehicle according to one embodiment.
Fig. 9 shows an example of a communication method of a vehicle according to an embodiment.
Fig. 10 shows that the vehicle acquires the image of the surrounding vehicle according to the communication method shown in Fig.
Fig. 11 and Fig. 12 show that the vehicle displays an image of the surrounding vehicle according to the communication method shown in Fig.
Figs. 13, 14, and 15 show that the vehicle detects the position of the nearby vehicle according to the communication method shown in Fig.
Figs. 16 and 17 show that the vehicle displays the position information of the neighboring vehicle according to the communication method shown in Fig.
Figs. 18, 19, 20, 21, 22, and 23 show formation of a beam pattern according to the communication method shown in Fig.
Fig. 24 shows another example of a vehicle communication method according to an embodiment.
25 shows that the position of the target vehicle is changed.
Fig. 26 shows the tracking of the position of the target vehicle according to the communication method shown in Fig.
Fig. 27 shows the reshaping of the beam pattern according to the communication method shown in Fig.
28 shows another example of a communication method of a vehicle according to an embodiment.
Figs. 29, 30 and 31 illustrate re-forming the beam pattern according to the communication method shown in Fig.
32 shows another example of a vehicle communication method according to an embodiment.
Figs. 33, 34, 35, and 36 show the pattern reformation according to the communication method shown in Fig.
37 shows another example of a communication method of a vehicle according to an embodiment.
Figs. 38, 39, 40, 41, 42, 43, and 44 show formation of a beam pattern according to the communication method shown in Fig.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, as claimed, and it is to be understood that the invention is not limited to the disclosed embodiments.

Also, the terms used herein are used to illustrate the embodiments and are not intended to limit and / or limit the disclosed invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as " comprise ", " comprise ", or "have ", when used in this specification, designate the presence of stated features, integers, Steps, operations, components, parts, or combinations thereof, whether or not explicitly described herein, whether in the art,

It is also to be understood that terms including ordinals such as " first ", "second ", and the like used herein may be used to describe various elements, but the elements are not limited by the terms, It is used only for the purpose of distinguishing one component from another.

The terms "to, "," to block ", "to absent "," to module ", and the like used in the entire specification can mean a unit for processing at least one function or operation have. For example, hardware such as software, FPGA, or ASIC.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 shows an appearance of a vehicle according to an embodiment. Fig. 2 shows an interior of a vehicle according to an embodiment. Fig. 3 shows various electronic devices included in a vehicle according to an embodiment.

1, a vehicle 1 according to an embodiment includes a body 11-16 forming an outer appearance of the vehicle 1, a chassis 11 supporting components of the vehicle 1, (Not shown), vehicle bodies 11 to 16, and wheels 21 and 22 for moving the vehicle.

The wheels 21 and 22 include a front wheel 21 provided at the front of the vehicle and a rear wheel 22 provided at the rear of the vehicle and the vehicle 1 is rotated forward or rearward by the rotation of the wheels 21 and 22. [ . &Lt; / RTI >

The vehicle bodies 11 to 16 include a hood 11, a front fender 12, a roof panel 13, a door 14, a trunk lid 15, a quarter panel 16, and the like.

A front window 17 provided on the front side of the vehicle bodies 11 to 16, a side window 18 provided on the door 14, And a rear window 19 provided on the rear side of the rear windows 11 to 16.

As shown in Fig. 2, the vehicle bodies 11 to 16 are provided with seats S1 and S2 on which the occupant sits, various instruments for controlling the operation of the vehicle 1 and displaying the running information of the vehicle 1 A dashboard 30, a center fascia 40 provided with a control panel for operating the accessories included in the vehicle 1, a center console (not shown) provided with a gear stick and a runner brake stick a center console 50 and a steering wheel 60 for operating the running direction of the vehicle 1. [

The seat S1 and the seat S2 allow the driver to operate the vehicle 1 in a comfortable and stable posture and are provided with a driver's seat S1 on which the driver sits, a passenger seat S2 on which the passenger sits, (Not shown).

The dashboard 30 may be provided with a speed meter for indicating information related to driving, a fuel meter, an automatic shift select lever display, a tachometer, an instrument panel such as a section distance meter, and the like.

The center fascia 40 is provided between the driver's seat S1 and the front passenger's seat S2 and includes an operation unit for adjusting the audio equipment, the air conditioner and the heater, an air conditioner for adjusting the temperature inside the vehicle bodies 11 to 16, A cigar jack, and the like.

The center console 50 is provided below the center fascia 33 between the driver's seat S1 and the front passenger's seat S2 and may be provided with a gear stick for shifting and a parking brake stick for parking.

The steering wheel 60 is attached to the dashboard 30 so as to be rotatable about the steering axis and the driver rotates the steering wheel 60 clockwise or counterclockwise to change the traveling direction of the vehicle 1 .

(E.g., an engine or a motor) for generating power for moving the vehicle 1 by burning the fuel, a fuel supply device for supplying fuel to the power generation device, A power transmitting device for transmitting the power generated by the power generating device to the wheels 21 and 22, a power transmitting device for transmitting the power generated by the power generating device to the steering wheel 40 A braking device for stopping the rotation of the wheels 21 and 22 and a braking device for stopping the rotation of the wheels 21 and 22 to absorb the vibration of the wheels 21 and 22 by the road And the like may be provided.

Vehicle 1 may include a variety of electronic devices 100 with the mechanical devices described above.

3, the vehicle 1 includes an audio / video / navigation (AVN) apparatus 110, an input / output control system 120, an engine management system (EMS) A transmission control system (TMS) 140, a brake-by-wire 150, a steering-by-wire 160, a driving assistance system 170, Device 180, wireless communication device 200, and the like. The electronic device 100 shown in Fig. 3 is only a part of the electronic device included in the vehicle 1, and the vehicle 1 may be provided with more various electronic devices.

In addition, the various electronic devices 100 included in the vehicle 1 can communicate with each other through the vehicle communication network NT. The Vehicle Communication Network (NT) may be a Media Oriented Systems Transport (MOST) having a communication speed of up to 24.5 Mbps (Mega-bits per second), a FlexRay having a communication speed of up to 10 Mbps, a CAN (Controller Area Network) having a communication speed of 1 Mbps to 1 Mbps, and a LIN (Local Interconnect Network) having a communication speed of 20 kbps. Such a vehicle communication network NT can employ not only a single communication protocol such as a mast, a player, a can, a lean, but also a plurality of communication protocols.

The AVN apparatus 110 is a device for outputting music or an image according to a control command of a driver. Specifically, the AVN apparatus 110 may reproduce music or moving images according to a control command of the driver, or may guide a route to a destination.

The AVN apparatus 110 includes an AVN display 111 for displaying an image to a driver, an AVN button module 113 for receiving a control command of a driver, a GPS (Global Positioning System) for acquiring geographical position information of the vehicle 1, ) &Lt; / RTI > Here, the AVN display 111 may employ a touch-sensitive display (e.g., a touch screen) capable of receiving a touch input of a driver. In addition, the AVN display 111 may employ a liquid crystal display (LCD) panel or an organic light emitting diode (OLED) panel.

The GPS module 115 also receives information for calculating the position of the vehicle 1 from GPS (Global Positioning System) satellites and can determine the position of the vehicle 1 based on the information received from the GPS satellites have.

The input / output control system 120 receives the driver's control command through the button and displays information corresponding to the driver's control command. The input / output control system 120 includes a cluster display 121 provided on the dashboard 30 for displaying an image, a head up display 122 for projecting an image on the wind screen 17, and a wheel installed on the steering wheel 60 A button module 123, and the like.

The cluster display 121 is provided on the dashboard 30 to display an image. Particularly, the cluster display 121 is provided adjacent to the windscreen 17 so that the driver U can be informed of the operation information of the vehicle 1, the information of the road 1 Or a travel route. The cluster display 121 may employ a liquid crystal display (LCD) panel or an organic light emitting diode (OLED) panel.

The head-up display 122 may project an image onto the windscreen 17. The image projected on the windscreen 17 by the head-up display 122 may include motion information of the vehicle 1, road information, or a driving route.

The engine control system 130 performs fuel injection control, fuel ratio feedback control, lean burn control, ignition timing control, idling control, and the like. The engine control system 140 may be a single device, or may be a plurality of devices connected through a communication.

The shift control system 140 performs shift point control, damper clutch control, pressure control during friction clutch on / off, and engine torque control during shifting. The shift control system 140 may be a single device, or may be a plurality of devices connected through communication.

The braking control device 150 may control the braking of the vehicle 1 and may typically include an anti-lock brake system (ABS) or the like. The steering control device 160 assists the steering operation of the driver by reducing the steering force during low-speed driving or parking and increasing the steering force during high-speed driving.

The driving assist system 170 assists the running of the vehicle 1 and can perform a forward collision avoiding function, a lane departure warning function, a blind zone monitoring function, a rearward monitoring function, and the like.

Such a driving assistance system 170 may include a plurality of devices connected through communication. For example, the driving assistance system 170 may include a Forward Collision Warning System (FCW) for detecting a running vehicle in the same direction ahead of the driving lane and avoiding a collision with a preceding vehicle, (Advanced Emergency Braking System, AEBS) that mitigates the impact when a collision is inevitable, adaptive cruising that detects the vehicle in the same direction in front of the driving lane and automatically accelerates / decelerates according to the speed of the preceding vehicle (ACC), a lane departure warning system (LDWS) that prevents the vehicle from leaving the driving lane, and a lane keeping assist device (LDWS) that controls the lane departure warning system Lane Keeping Assist System (LKAS), a visual zone monitoring system (Blind Spot Detection (BSD), a rear-end collision warning system (RCW) that detects a vehicle traveling in the same direction behind the driving lane and avoids an impulse with a rearward vehicle.

The driving assist system 170 may include a radar module 171 for detecting the positions of the front and rear vehicles, and a camera module 172 for acquiring images of the front and rear vehicles. Specifically, the radar module 171 may be used for a device operating according to the position of the front and rear vehicle, such as the front impulse warning device, the automatic emergency braking device, the adaptive cruise control device, the visual zone monitoring device, and the rear impulse warning device. In addition, the camera module 171 can be used for devices operating in front and rear vehicles such as a lane departure warning device and a lane keeping assist device, and an image of a road.

The line of sight detecting apparatus 180 detects the driver's line of sight using the camera module 181 provided in the vehicle. For example, the visual-line detecting device 180 can detect the direction in which the driver is looking by detecting the direction of the head of the driver and the position of the eyes of the driver.

The radio communication apparatus 200 can communicate with an external vehicle or an external terminal or the like. The configuration and operation of the radio communication apparatus 200 will be described in detail below.

The configuration of the vehicle 1 has been described above.

The configuration and operation of the radio communication apparatus 200 included in the vehicle 1 will be described below.

FIG. 4 illustrates a wireless communication apparatus included in a vehicle according to an embodiment, and FIGS. 5, 6A, 6B, and 6C illustrate a fifth generation communication method. FIG. 7 illustrates a wireless signal conversion module included in a vehicle according to an embodiment, and FIG. 8 illustrates a beamforming module included in a vehicle according to an embodiment.

4 to 8, the wireless communication device 200 includes an internal communication unit 220 for communicating with various electronic devices 100 in the vehicle 1 via a vehicle communication network NT inside the vehicle 1, A wireless communication unit 300 for communicating with an external vehicle, a mobile terminal or a wireless communication base station, and a communication control unit 210 for controlling operations of the internal communication unit 220 and the wireless communication unit 300.

The internal communication unit 220 includes an internal communication interface 225 connected to the vehicle communication network NT, an internal signal conversion module 223 for modulating / demodulating the signal, internal communication for controlling communication via the vehicle communication network NT, A control module 221 may be included.

The internal communication interface 225 receives communication signals transmitted from various electronic devices 100 inside the vehicle 1 via the vehicle communication network NT and transmits the communication signals to the inside of the vehicle 1 via the vehicle communication network NT And transmits the communication signal to the various electronic devices 100. Here, the communication signal means a signal transmitted / received through the vehicle communication network NT.

The internal communication interface 225 may include a communication port for connecting the vehicle communication network NT and the wireless communication device 200 and a transceiver for transmitting and receiving signals.

The internal signal conversion module 223 demodulates the communication signal received through the internal communication interface 223 into a control signal under the control of the internal communication control module 221 described below, And modulates the digital control signal into an analog communication signal for transmission via the internal communication interface 223.

As described above, the communication signal refers to a signal transmitted / received through the vehicle communication network NT, and the control signal refers to a transmission / reception signal within the wireless communication device 200. A communication signal transmitted / received through the vehicle communication network NT and a control signal transmitted / received between the internal communication unit 220 and the communication control unit 210 have different formats.

For example, in the case of the can communication, the communication signal is transmitted through the pair of communication lines, and the communication data "1" or "0" is transmitted according to the potential difference between the pair of communication lines. On the other hand, the control signal transmitted / received between the internal communication unit 220 and the communication control unit 210 is transmitted through a single line, and control data "1" or "0"

The internal signal conversion module 223 modulates the control signal output from the communication control unit 210 into a communication signal conforming to the communication protocol of the vehicle network NT and transmits the communication signal according to the communication protocol of the vehicle network NT And demodulates it into a control signal that can be recognized by the communication control unit 210.

Such an internal signal conversion module 223 may include a program for performing modulation / demodulation of a communication signal and a memory for storing data, a processor for performing modulation / demodulation of a communication signal according to programs and data stored in the memory have.

The internal communication control module 221 controls operations of the internal signal conversion module 223 and the communication interface 225.

For example, when transmitting a communication signal, the internal communication control module 221 determines whether the communication network NT is occupied by the other electronic device 100 through the communication interface 225, The internal communication interface 225 and the internal signal conversion module 223 are controlled to transmit the communication signal. In addition, when receiving a communication signal, the internal communication control module 221 controls the internal communication interface 225 and the signal change module 223 to demodulate the communication signal received via the communication interface 225.

The internal communication control module 221 includes a memory for storing programs and data for controlling the internal signal conversion module 223 and the communication interface 225, a processor for generating control signals according to programs and data stored in the memory, .

According to the embodiment, the internal signal conversion module 223 and the internal communication control module 221 may be implemented as separate memories and processors, or a single memory and a processor.

In addition, the internal communication control module 221 may be omitted according to the embodiment. For example, the internal communication control module 221 may be incorporated in the communication control unit 210 described below. In this case, the communication control unit 210 directly controls the signal transmission / signal reception of the internal communication unit 220 .

The wireless communication unit 300 can exchange signals with a vehicle, a mobile terminal, or a wireless communication base station through a wireless signal.

The wireless communication unit 300 can exchange signals through various communication protocols.

For example, the wireless communication unit 300 may be a second generation (2G) communication system such as a time division multiple access (TDMA) system and a code division multiple access system (CDMA) (3G) communication systems such as Wide Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA2000), Wireless Broadband (Wibro) and World Interoperability for Microwave Access (WiMAX) (4G) communication method such as Long Term Evolution (LTE) and Wireless Broadband Evolution. Also, the wireless communication unit 300 may employ a fifth generation (5G) communication system.

The 4G communication method uses the frequency band of 2 GHz or less, but the 5G communication method uses the frequency band of about 28 GHz band. However, the frequency band used by the 5G communication system is not limited thereto.

A large-scale antenna system may be employed for the 5G communication system. A large-scale antenna system refers to a system that can cover up to ultra-high frequency by using dozens or more antennas, and can transmit / receive a large amount of data simultaneously through multiple connections. Specifically, the large-scale antenna system can adjust the arrangement of the antenna elements to transmit and receive radio waves farther in a specific direction, thereby enabling a large-capacity transmission and expanding the usable area of the 5G communication network.

Referring to FIG. 5, the base station ST can simultaneously transmit and receive data and a plurality of devices through a large-scale antenna system. In addition, the large-scale antenna system minimizes radio waves radiated in a direction outside the direction of propagation of radio waves to reduce noise, thereby improving transmission quality and reducing the amount of electric power.

In addition, the 5G communication method uses a non-orthogonal multiplexing access (NOMA) method to modulate a radio signal, unlike a conventional method of modulating a transmission signal through an Orthogonal Frequency Division Multiplexing By this transmission, more devices can be connected to multiple devices, and large capacity transmission / reception is possible at the same time.

For example, the 5G communication method can provide a transmission rate of up to 1Gbps. 5G communication method can support immersive communication that requires high-capacity transmission such as UHD (Ultra-HD), 3D, hologram, etc. through large capacity transmission. As a result, users can send and receive more sophisticated and immersive ultra-high-capacity data faster through the 5G communication method.

In addition, the 5G communication method enables real-time processing with a maximum response speed of 1ms or less. Accordingly, in the 5G communication method, it is possible to support a real-time service that responds before the user recognizes it. For example, a vehicle receives sensor information from various devices while driving, and can provide an autonomous driving system through real-time processing, as well as provide various remote controls. In addition, the vehicle can process the sensor information with other vehicles existing around the vehicle through the 5G communication system in real time to provide the possibility of occurrence of collision to the user in real time, Can be provided in real time.

In addition, through the real-time processing and large-capacity transmission provided by the 5G communication, the vehicle can provide the big data service to the passengers in the vehicle. For example, the vehicle can analyze various web information, SNS information, and the like, and provide customized information suitable for the situation of the passengers in the vehicle. In one embodiment, the vehicle collects various kinds of tourist information and tourist information existing in the vicinity of the traveling route through the big data mining and provides it in real time so that the passengers can directly check various information existing around the traveling area.

On the other hand, the network of the 5G communication can further subdivide the cell and support the high density and large capacity transmission of the network. Here, a cell refers to a zone in which a large area is divided into small areas in order to efficiently use the frequency in mobile communication. At this time. A small power base station is installed in each cell to support communication between terminals. For example, the network of 5G communication can be formed in a two-stage structure of a macro cell base station-distributed small base station-communication terminal by further reducing the size of the cell and reducing the size of the cell.

Also, in a network of 5G communication, relay transmission of a radio signal through a multihop method can be performed. For example, as shown in FIG. 6A, the first terminal T1 may relay the wireless signal to be transmitted by the third terminal T3 located outside the network of the base station ST to the base station ST have. The first terminal T1 may relay the radio signal to be transmitted by the second terminal T2 located in the network of the base station ST to the base station ST. As described above, at least one of the devices capable of using the network of the 5G communication may perform the relay transmission through the multi-hop method, but the present invention is not limited thereto. As a result, it is possible to expand the area where the 5G communication network is supported and to solve the buffering problem caused by a large number of users in the cell.

Meanwhile, the 5G communication system is capable of device-to-device (D2D) communication applied to vehicles, wearable devices, and the like. Device-to-device communication refers to communication between devices, and refers to communication in which a device transmits not only data sensed through a sensor but also wireless signals containing various data stored in the device. According to the inter-device communication method, it is not necessary to exchange wireless signals via the base station, and radio signals are transmitted between the devices, so unnecessary energy can be saved. At this time, in order to use a 5G communication system such as a vehicle or a wearable device, an antenna must be built in the device.

The vehicle 1 can transmit and receive a radio signal with other vehicles existing around the vehicle through the inter-device communication. For example, the vehicle 1 can transmit and receive radio signals with other vehicles existing around the vehicle The vehicle 1 can communicate with a traffic information device (not shown) installed at an intersection or the like, as well as the vehicle 1 with the devices V1, V2, and V3.

As another example, the vehicle 1 can transmit and receive radio signals with the first vehicle V1 and the third vehicle V3 via inter-device communication as shown in Fig. 6C, and the third vehicle V3 can transmit / Can communicate data with the vehicle 1 and the second vehicle V2 through inter-device communication. That is, a virtual network is formed between a plurality of vehicles (1, V1, V2, V3) located within a distance capable of device-to-device communication, and wireless signals can be transmitted and received.

On the other hand, the 5G communication network extends the area where device-to-device communication is supported, enabling communication between devices located farther away. In addition, since it supports real-time processing with response speed of 1ms or less and high-capacity communication of 1Gbps or more, signals including desired data can be exchanged between vehicles running.

For example, a vehicle can communicate with other vehicles, servers, systems, and the like existing in the vicinity of the vehicle in real time through the 5G communication system, and can transmit and receive data, and provides a route guidance service through the augmented reality And can provide various kinds of services.

In addition, the vehicle can transmit and receive wireless signals including data through a base station or inter-device communication using a band outside the above-mentioned frequency band, and is not limited to the communication method using the above-mentioned frequency band.

Hereinafter, it is assumed that the wireless communication unit 300 adopts the 5G communication method.

4, the wireless communication unit 300 includes a wireless signal conversion module 320 for modulating / demodulating a signal, a beam pattern for wireless communication, a wireless signal transmission / A receiving beamforming module 330 and a wireless communication control module 310 for controlling wireless communication.

The wireless signal conversion module 320 demodulates the wireless communication signal received through the beamforming module 330 into a control signal according to the control of the wireless communication control module 310 described below, And modulates the control signal into a wireless communication signal for transmission through the beamforming module 330.

A wireless communication signal transmitted / received through wireless communication has a format different from a control signal in order to ensure reliability of wireless communication. Particularly, the wireless communication signal is an analog signal, whereas the control signal is a digital signal.

In addition, the wireless communication signal carries a signal to a carrier of a high frequency (for example, about 28 GHz in the case of the 5G communication method) to transmit a signal. For this, the wireless signal conversion module 320 generates a communication signal by modulating the carrier wave according to the control signal output from the communication control unit 210, and restores the control signal by demodulating the communication signal received through the array antenna 340 can do.

7, the radio signal conversion module 320 includes an encoder (ENC) 321, a modulator (MOD) 322, a multiple input multiple output (MIMO) A frequency converter 323, a pre-coder 324, an inverse fast Fourier transformer (IFFT) 325, a parallel-to-serial converter (P / S) A CP (Cyclic Prefix) inserter 327, a digital to analog converter (DAC) 328, and a frequency converter 329. [

Also, the L control signals are input to the MIMO encoder 323 through the encoder 321 and the modulator 322. The M streams output from the MIMO encoder 323 are precoded by the precoder 324 and converted into N precoded signals. The precoded signals are output as an analog signal through an inverse fast Fourier transformer 325, a parallel-to-serial converter 326, a cyclic prefix inserter 327, and a digital-to-analog converter 328. The analog signal output from the digital-to-analog converter 328 is converted into a radio frequency (RF) band through the frequency converter 329.

The wireless signal conversion module 320 may include a program for performing modulation / demodulation of a communication signal and a memory for storing data, a processor for performing modulation / demodulation of a communication signal according to programs and data stored in the memory have.

However, the wireless signal conversion module 320 is not limited to the embodiment shown in FIG. 7, and may have various embodiments according to a communication method.

The analog signal converted into the radio frequency band is input to the beamforming module 330.

The beamforming module 330 may transmit or receive a wireless signal by forming a beam pattern for wireless communication under the control of the wireless communication control module 310 described below.

The 5G communication scheme can transmit a radio signal to be transmitted in a radial form, but can also transmit a radio signal to a specific area or a specific device through beamforming. At this time, the 5G communication method can transmit a radio signal through beam forming using a millimeter wave band. Here, the millimeter wave band means a band of about 30 Ghz or more to about 300 Ghz or less, but is not limited thereto.

The beamforming module 330 may form a beam pattern using a phased array antenna.

Here, the beam pattern is a pattern that appears due to the intensity of the radio signal when the radio signal is concentrated in a specific direction. In other words, the beam pattern means a pattern in which the power of the radio signal is concentrated. Therefore, the vehicle 1 can transmit a radio signal of sufficient intensity to a communication object (an external vehicle, an external terminal or a base station) located inside the beam pattern and receive a radio signal of sufficient intensity from a communication object located inside the beam pattern .

Further, as the communication object deviates from the center of the beam pattern, the intensity of the radio signal transmitted by the vehicle 1 to the communication object decreases, and the intensity of the radio signal received by the vehicle 1 from the communication object also decreases.

The phased array antenna is an antenna capable of controlling the beam pattern of the entire array antenna by regularly arranging the unit antenna elements and controlling the phase difference of the radio signal output from each unit antenna element.

For example, as shown in FIG. 8, the beamforming module 330 includes a power divider 331 for dividing the power of an analog signal output from the wireless signal conversion module 320, a phase converter A variable gain amplifier 333 for amplifying the power of the analog signal, and an array antenna 334 for transmitting and receiving an analog signal.

The beamforming module 330 distributes the power of the analog signal to the unit antennas 334a to 334h through the power divider 331 and transmits the power of each unit antenna 334a to 334h through the phase shifter 332 and the variable gain amplifier 333. [ Various beam patterns BP can be formed by controlling the electric power delivered to the light emitting portions 334a through 334h.

At this time, when the main direction of the beam pattern BP to be outputted from the array antenna 334 is?, The phase difference ?? through the phase shifter 332 can be expressed by Equation (1).

[Equation 1]

(? Is the phase difference, d is the interval between the unit antennas,? Is the wavelength of the carrier wave, and? Is the main direction of the beam pattern).

The main direction? Of the beam pattern BP is determined by the phase difference ?? between the unit antennas 334a to 334h and the interval d between the unit antennas 334a to 334h .

Further, the 3 dB beam width BW of the beam pattern BP to be output from the array antenna 334 can be expressed by Equation (2).

&Quot; (2) "

(Where BW is the beam width of the beam pattern, d is the spacing between the unit antennas,? Is the wavelength of the carrier wave, and N is the number of array antennas).

The beam width BW of the beam pattern BP is determined by the interval d between the unit antennas 334a to 334h and the number N of the unit antennas 334a to 334h .

The wireless communication control module 310 controls operations of the wireless signal conversion module 320 and the beamforming module 330.

For example, when establishing communication with an external vehicle, an external terminal, or an external base station, the wireless communication control module 310 may include a wireless signal conversion module 320 and a beamforming Module 330 may be controlled. Specifically, the wireless communication control module 310 can evaluate the wireless communication channel according to the beam pattern BP, and generate an optimal wireless communication channel based on the evaluation result.

In addition, when transmitting a communication signal, the wireless communication control module 310 may control the beam forming module 330 to form a beam pattern BP for transmitting a communication signal. More specifically, the wireless communication control module 310 controls the phase difference DELTA phi between the unit antennas 334a to 334h to control the main direction [theta] of the beam pattern BP formed by the beamforming module 330. [ Can be adjusted. Also, when receiving a communication signal, the wireless communication control module 310 may control the beam-forming module 330 to form a beam pattern BP for receiving a communication signal.

The wireless communication control module 310 includes a memory for storing programs and data for controlling the wireless signal conversion module 320 and the beamforming module 330, a program stored in the memory and a processor . &Lt; / RTI >

According to the embodiment, the wireless signal conversion module 320 and the wireless communication control module 310 may be implemented as separate memories and processors, or as a single memory and a processor.

In addition, the wireless communication control module 310 may be omitted according to the embodiment. For example, the wireless communication control module 310 may be integrated into the communication control unit 210 described below. In this case, the communication control unit 210 directly controls the signal transmission / signal reception of the wireless communication unit 300 .

The communication control unit 210 controls operations of the internal communication unit 220 and the wireless communication unit 300.

Specifically, when a signal is received through the internal communication unit 220, the received signal is analyzed and the operations of the internal communication unit 220 and the wireless communication unit 300 are controlled according to the analysis result.

For example, when a data transmission request is received from another electronic device 100 included in the vehicle 1 through the internal communication unit 220, the communication control unit 210 transmits the data to an external vehicle, an external terminal, or an external base station The wireless communication unit 300 can be controlled.

In addition, when data is received from an external vehicle, an external terminal, or an external base station, the communication control unit 210 analyzes the received data to determine a target device of the data, and transmits the received data to the destination communication unit 220, Can be controlled.

The communication control unit 210 may include a memory for storing programs and data for controlling the internal communication unit 220 and the wireless communication unit 300, and a processor for generating control signals according to programs and data stored in the memory .

The configuration of various electronic devices 100 provided in the vehicle 1 including the wireless communication device 200 has been described above.

Hereinafter, the operation of various electronic devices 100 provided in the vehicle 1 will be described. In particular, the operation of the radio communication apparatus 200 will be described.

Fig. 9 shows an example of a communication method of a vehicle according to an embodiment. Fig. 10 shows that the vehicle acquires the image of the surrounding vehicle in accordance with the communication method shown in Fig. 9, Figs. 11 and 12 show the image of the surrounding vehicle in the vehicle according to the communication method shown in Fig. Lt; / RTI > Figs. 13, 14, and 15 show that the vehicle detects the position of the nearby vehicle in accordance with the communication method shown in Fig. 9, Figs. 16 and 17 illustrate how the vehicle And displays the position information of the nearby vehicle. 18, 19, 20, 21, 22, and 23 show formation of a beam pattern according to the communication method shown in Fig.

Hereinafter, a communication method 1000 in which the vehicle 1 communicates with the surrounding vehicles V1, V2, V3 will be described with reference to Figs. 9 to 23. Fig.

The vehicle 1 determines whether it should communicate with the nearby vehicles V1, V2, V3 (1010).

The vehicle 1 can communicate with the surrounding vehicles V1, V2, V3 for various reasons. For example, when the driver commands the communication with the nearby vehicles V1, V2, V3 or transmits the operation information of the vehicle 1 to the nearby vehicles V1, V2, V3, (V1, V2, V3).

Specifically, when the driver attempts to chat with the driver of the nearby vehicles V1, V2, and V3 via the chat application installed in the AVN apparatus 110, the AVN apparatus 110 transmits the wireless communication through the vehicle communication network NT And may request the device 200 to communicate with the nearby vehicles V1, V2, V3. At this time, the wireless communication device 200 may attempt to communicate with the nearby vehicles V1, V2, and V3 according to a communication request of the AVN device 110. [

When an abnormality occurs in the braking device of the vehicle 1, the braking control device 150 performs communication with the surrounding vehicles V1, V2, V3 via the vehicle communication network NT to the wireless communication device 200 Can be requested. At this time, the wireless communication apparatus 200 may attempt to communicate with the nearby vehicles V1, V2, and V3 in response to a communication request from the braking control apparatus 150. [

If it is determined that the vehicle 1 is not communicating with the neighboring vehicles V1, V2, V3 (NO in 1010), the vehicle 1 continues its operation.

If it is determined that the vehicle 1 is communicating with the nearby vehicles V1, V2, and V3 (YES at 1010), the vehicle 1 determines whether the target vehicle has been selected (1020). Here, the target vehicle means a target vehicle to communicate with the vehicle 1, and one or more vehicles can be selected as the target vehicle.

The target vehicle can be selected in various ways.

First, the vehicle 1 displays an image of the surrounding vehicle on the displays 111, 121, and 122 of the AVN apparatus 110 or the input / output control system 120, and obtains the position information of the vehicle selected by the driver have.

Secondly, the vehicle 1 can acquire the position information of the nearby vehicle using the driving assist system 170, and select the target vehicle from the driver based on the obtained position information.

First, the first method will be described.

The vehicle 1 can acquire images of the surrounding vehicles using the camera module 172 included in the driving assist system 170. [ Specifically, the wireless communication device 200 receiving the communication request with the neighboring vehicles V1, V2, and V3 sends a driving assistance signal to the driving assist system 170 to acquire images of the neighboring vehicles V1, V2, (V1, V2, V3).

The driving assist system 170 receiving the image acquisition request of the neighboring vehicles V1, V2 and V3 transmits the images of the nearby vehicles V1, V2 and V3 using the camera modules 172a, 172b, 172c and 172c Can be obtained. Here, the camera module 172 includes a first camera 172a located in front of the vehicle 1, a second camera 172b located behind the vehicle 1, a second camera 172b located on the left side of the vehicle 1, 3 camera 172c and a fourth camera 172d located on the right side of the vehicle 1. [

The driver assistance system 170 can control the first to fourth cameras 172a to 172d to sequentially or simultaneously acquire images of the nearby vehicles V1, V2 and V3. For example, as shown in FIG. 10, the first camera 172a acquires the image of the first vehicle V1, the second camera 171b acquires the images of the second vehicle V1 and the third vehicle V3, And the third camera 171c may acquire an image of the third vehicle V3.

The driver assistance system 170 that has acquired the images of the surrounding vehicles V1, V2 and V3 transmits the image information of the surrounding vehicles V1, V2 and V3 via the vehicle communication network NT to the AVN apparatus 110 or the input / To the system (120).

The AVN apparatus 110 or the input / output control system 120 which has received the image information of the surrounding vehicles V1, V2 and V3 transmits the AVN display 111, the cluster display 121 or the head- (V1, V2, V3).

For example, as shown in FIG. 11, the AVN apparatus 110 may display the peripheral vehicle image 400 including the images of the surrounding vehicles V1, V2, and V3 on the AVN display 111. FIG. The peripheral vehicle image 400 may include a front image region 410, a rear image region 420, a left image region 430, and a right image region 440.

The first vehicle image IM1 representing the first vehicle V1 is displayed in the front image region 410 and the second vehicle image IM2 representing the second vehicle V2 is displayed in the rear image region 420. [ And a third vehicle image IM3 indicating the third vehicle V3 may be displayed. Also, a third vehicle image IM3 indicating the third vehicle V3 may be displayed in the right image region 430. [

The driver can select the target vehicle by touching the vehicle image representing the target vehicle among the vehicle images IM1, IM2, and IM3 displayed on the AVN display 111. [

When the driver touches the vehicle image representing the target vehicle among the vehicle images IM1, IM2, and IM3 displayed on the AVN display 111, the AVN device 110 senses the touch coordinates of the driver and, based on the sensed touch coordinates, The position information of the vehicle can be obtained.

When the driver touches the third vehicle image IM3 in the right image area 430, the AVN device 110 can determine that the target vehicle is located on the right side of the vehicle 1. [ Further, the AVN apparatus 110 can determine the direction in which the target vehicle is located by associating the touch coordinates of the driver with the shooting direction of the third camera 171c. In other words, the AVN apparatus 110 determines the coordinates of the right image area 430 corresponding to the touch coordinates of the driver, and associates the coordinates of the right image area 430 with the photographing direction of the third camera 172c, The direction in which the vehicle is positioned can be determined.

In addition, the AVN apparatus 110 judging the position of the target vehicle can transmit the position information of the target vehicle to the radio communication apparatus 200. [

12, the input / output control system 120 transmits the peripheral vehicle image 400 including the images of the surrounding vehicles V1, V2, and V3 to the wind screen 17 ). &Lt; / RTI > The peripheral vehicle image 400 displayed on the windscreen 17 by the head-up display 122 may include a rear image region 420, a left image region 430, and a right image region 440. The vehicle positioned in front of the vehicle 1 is displayed on the windscreen so that the forward image may not be displayed.

In the rear image area 420, a second vehicle image IM2 representing the second vehicle V2 and a third vehicle image IM3 representing the third vehicle V3 may be displayed. Also, a third vehicle image IM3 indicating the third vehicle V3 may be displayed in the right image region 430. [

The driver can select the target vehicle by staring the vehicle image representing the target vehicle among the vehicle images IM1, IM2, and IM3 displayed on the windscreen 17. [ Specifically, the driver can observe either one of the front vehicle viewed through the windscreen 17, the left / right vehicle image projected on the windscreen 17 through the head-up display 122 and the rear vehicle image, You can choose a vehicle.

When the driver looks in a specific direction, the visual line detecting device 180 can detect the driver's gaze. As described above, the line of sight detection apparatus 180 can detect the direction of the head of the driver and the position of the eyes of the driver, and can determine the line of sight of the driver based on the direction of the driver's head and the position of the eyes.

The gaze detection device 180 detects the driver's gaze and transmits the gaze information to the input / output control system 120 through the vehicle communication network NT. The input / output control system 120 detects the gaze information of the driver and the position of the target vehicle Information can be obtained.

When the driver looks at the third vehicle image IM3 in the right image area 430, the input / output control system 120 can determine that the target vehicle is located on the right side of the vehicle 1. [ Further, the input / output control system 120 can determine the direction in which the target vehicle is positioned by associating the sight line coordinates of the driver with the shooting direction of the third camera 172c.

As described above, the vehicle 1 can acquire an image of a nearby vehicle using the camera module 172, and display the acquired image to the driver. Further, when the driver selects the image of the target vehicle from the displayed image, the positional information of the target vehicle can be obtained based on the image of the selected target vehicle.

Further, the input / output control system 120 judging the position of the target vehicle can transmit the position information of the target vehicle to the radio communication device 200. [

Next, the second method will be described.

As described above, the vehicle 1 can acquire the position information of the nearby vehicle and display the obtained position information to the driver. The target vehicle can be selected based on the positional information from the vehicle 1 driver.

The vehicle 1 can acquire the position information of the nearby vehicle using the radar module 171 included in the driving assist system 170. [ Specifically, the wireless communication device 200 receiving the communication request with the neighboring vehicles V1, V2, and V3 sends the driving assistance signal to the driving assist system 170 to acquire the position information of the neighboring vehicles V1, V2, And can request the position detection of the vehicles V1, V2, V3.

The driving assist system 170 which receives the position detection request of the nearby vehicles V1, V2 and V3 receives the position detection signals of the surrounding vehicles V1, V2 and V3 using the radar modules 171a, 171b, 171c and 171d 171 or the ultrasonic sensor module V1, V2, V3) can be detected. Here, the radar module 171 includes a first radar sensor 171a located at the front of the vehicle 1, a second radar sensor 171b located at the rear of the vehicle 1, And a fourth radar sensor 171d located on the right side of the vehicle 1. [

When the position of the nearby vehicles V1, V2 and V3 is detected by using the radar module 171, the driving assist system 170 transmits a detection radio wave to the periphery of the vehicle 1 through the radar module 171 , And reflected radio waves reflected from the surrounding vehicles V1, V2, V3. The driving assist system 170 also calculates the distance between the vehicle 1 and the surrounding vehicles V1, V2, V3 and the distance between the vehicle 1 and the surrounding vehicles V1, V2, V3 based on the reception intensity of the reflected wave or the phase difference (or time difference) It is possible to determine the directions of the vehicles V1, V2 and V3.

Specifically, the driving assist system 170 can control the radar module 171 so that the first to fourth radar sensors 171a to 171d sequentially transmit the detection radio waves and receive the reflected radio waves.

For example, the driving assistance system 170 controls the radar module 171 so that the first radar sensor 171a transmits a detection radio wave toward the front of the vehicle 1 and receives reflected radio waves reflected from the vehicle ahead can do. When the first vehicle V1 is positioned in front of the vehicle 1, the first radar sensor 171a can receive the reflected radio wave reflected from the first vehicle V1 as shown in Fig.

Next, the driving assist system 170 controls the radar module 171 so that the second radar sensor 171b transmits the detection radio wave toward the rear of the vehicle 1 and receives the reflected radio wave reflected from the rear vehicle . When the second vehicle V2 is positioned behind the vehicle 1 and the third vehicle V3 is positioned on the left rear side of the vehicle 1 as shown in Fig. 14, the second radar sensor 171b is located at the second And can receive the first reflected radio wave reflected from the vehicle V2 and the second reflected radio wave reflected from the third vehicle V3.

Next, the driving assist system 170 controls the radar module 171 so that the third radar sensor 171c transmits the detection radio wave toward the left side of the vehicle 1 and receives the reflected radio wave reflected from the left side vehicle . When the third vehicle V3 is positioned on the left rear side of the vehicle 1, the third radar sensor 171c can receive the reflected radio wave reflected from the third vehicle V3 as shown in Fig.

Next, the driving assist system 170 controls the radar module 171 so that the fourth radar sensor 171d transmits the sensed radio wave toward the left side of the vehicle 1 and receives the reflected radio wave reflected from the left side vehicle . If the vehicle is not located on the right side of the vehicle 1, the fourth radar sensor 171d can not receive the reflected radio wave.

The driving assist system 170 determines the positions of the nearby vehicles V1, V2, and V3 located in the periphery of the vehicle 1 based on the reflected radio waves received by the first to fourth radar sensors 171a to 171d .

The driving assist system 170 can determine the position of the first vehicle V1 located in front of the vehicle 1 based on the reflected radio wave received by the first radar sensor 171a and the second radar sensor 171b Can determine the position of the second vehicle V2 located behind the vehicle 1 based on the first reflected wave received by the first vehicle V2. The driving assist system 170 is further provided with a third radar sensor 171b which is disposed on the left rear side of the vehicle 1 on the basis of the second reflected radio wave received by the second radar sensor 171b and the reflected radio wave received by the third radar sensor 171c, It is possible to determine the position of the vehicle V3.

The driving assist system 170 which detects the positions of the nearby vehicles V1, V2 and V3 transmits the position information of the nearby vehicles V1, V2 and V3 to the radio communication apparatus 200 via the vehicle communication network NT do.

The wireless communication apparatus 200 can determine the positions of the nearby vehicles V1, V2, and V3 based on the position information received from the driving assist system 170. [

Then, the target vehicle is selected. Specifically, the target vehicle may be selected by the vehicle 1 or selected by the driver.

When the electronic device 100 included in the vehicle 1 requests communication with the nearby vehicles V1, V2, V3, the communication request transmitted by the electronic device 100 may include information on the target vehicle . For example, when an abnormality occurs in the braking device of the vehicle 1 and a communication request is received from the braking control device 150, the target vehicle may be a vehicle located behind the vehicle 1. [

When the driver instructs communication with the nearby vehicles V1, V2 and V3 via the AVN apparatus 100 or the like, the vehicle 1 is informed to the driver through the input / output control system 120 that the nearby vehicles V1 and V2 , V3), and the driver can select the target vehicle.

16, the vehicle 1 can display the position information image 500 representing the nearby vehicles V1, V2, V3 via the AVN display 111 of the AVN apparatus 110 have. The position information image 500 may include vehicle icons IC1, IC2, IC3 indicating the positions of the nearby vehicles V1, V2, V3 located around the vehicle 1. [ The driver can select the target vehicle by selecting any one of the vehicle icons IC1, IC2, and IC3 included in the position information image 500. [

Specifically, the radio communication apparatus 200 transmits the AVN display 111 or the cluster display 121 to the AVN apparatus 110 so as to display the position information image 500 indicating the positional information of the nearby vehicles V1, V2 and V3, . When the driver touches the icon of the target vehicle among the vehicle icons IC1, IC2 and IC3 included in the position information image 500, the AVN apparatus 110 can transmit the information on the target vehicle to the wireless communication apparatus 200 have.

17, the vehicle 1 may display the peripheral vehicle image 500 indicating the positional information of the nearby vehicles V1, V2, and V3 via the cluster display 121. In this case, The peripheral vehicle image 500 may include icons IC1, IC2 and IC3 corresponding to peripheral vehicles V1, V2 and V3 located in the periphery of the vehicle 1. [ The driver can select the target vehicle by selecting any one of the icons IC1, IC2 and IC3 included in the surrounding vehicle image 500. [

Specifically, the wireless communication device 200 may request the input / output control system 120 to display the peripheral vehicle image 500 on the cluster display 121. [ The driver can select an icon corresponding to the target vehicle among the icons IC1, IC2 and IC3 included in the position information image 500 by using the wheel button module 123 provided on the steering wheel 60. [ When the driver selects the target vehicle, the input / output control system 120 can transmit information on the target vehicle to the wireless communication device 200. [

In addition, the vehicle 1 can select the target vehicle by various methods such as the voice and the operation of the driver.

When the target vehicle is selected (YES in 1020), the vehicle 1 prepares for communication with the target vehicle (1030).

Specifically, the radio communication apparatus 200 of the vehicle 1 can form a beam pattern BP according to the position of the target vehicle.

For example, when the first vehicle V1 located in front of the vehicle 1 is selected as the target vehicle, the wireless communication apparatus 200 may include the first vehicle V1 covering the first vehicle V1, 1 beam pattern BP1. Specifically, the wireless communication apparatus 200 determines the main direction? Toward the first vehicle V1 and forms the first beam pattern BP1 toward the first vehicle V1 The phase difference [Delta] [phi] between the phase shifters 332 can be adjusted.

When the first beam pattern BP1 is formed, the vehicle 1 can selectively communicate with the first vehicle V1 among the surrounding vehicles V1, V2, and V3, The third vehicle V3 can not receive information from the vehicle 1. [

As another example, when the second vehicle V2 located at the rear of the vehicle 1 is selected as the target vehicle, the radio communication apparatus 200 is configured as a second vehicle V2 covering the second vehicle V2, The beam pattern BP2 can be generated. Specifically, the radio communication apparatus 200 determines the main direction? Toward the second vehicle V2 and forms the second beam pattern BP2 whose main direction? Is the first vehicle V1 The phase difference [Delta] [phi] between the phase shifters 332 can be adjusted.

When the second beam pattern BP2 is formed, the vehicle 1 can selectively communicate with the second vehicle V2 among the neighboring vehicles V1, V2, V3, and the first vehicle V1, The third vehicle V3 can not receive information from the vehicle 1. [

As another example, when the third vehicle V3 located on the left rear side of the vehicle 1 is selected as the target vehicle, the radio communication apparatus 200 covers the third vehicle V3 as shown in Fig. 20 It is possible to generate the third beam pattern BP3. Specifically, the wireless communication apparatus 200 determines the main direction? Directed to the third vehicle V3 and forms the third beam pattern BP3 directed to the third vehicle V3 in the main direction? The phase difference [Delta] [phi] between the phase shifters 332 can be adjusted.

When the third beam pattern BP3 is formed, the vehicle 1 can selectively communicate with the third vehicle V3 among the surrounding vehicles V1, V2, V3, and the second vehicle V2, The third vehicle V3 can not receive information from the vehicle 1. [

Further, a plurality of target vehicles may be selected.

For example, when vehicles located behind the vehicle 1, including the second vehicle V2, are selected, the wireless communication device 200 is connected to the second It is possible to generate the second beam pattern BP2 covering not only the vehicle V2 but also the fourth vehicle V4. Specifically, the radio communication apparatus 200 determines the main direction? Toward the rear of the vehicle 1, and forms the second beam pattern BP1 whose main direction is toward the rear of the vehicle 1 The phase difference [Delta] [phi] between the phase shifters 332 can be adjusted. In addition, the wireless communication device 200 may adjust the gain of the variable gain amplifier 333 to form the second beam pattern BP2 of the maximum size.

As another example, if the second vehicle V2 and the third vehicle V3 are selected as the target vehicle, the wireless communication apparatus 200 can generate the second beam pattern BP2 and the third beam pattern V3 BP3). Specifically, the radio communication apparatus 200 can repeat the generation of the second beam pattern BP2 and the generation of the third beam pattern BP3 periodically by dividing the time.

As a result, the vehicle 1 can communicate with the second vehicle V2 and the third vehicle V3 at the same time.

Then, the vehicle 1 transmits information to the target vehicle (1040).

The radio communication apparatus 200 of the vehicle 1 can transmit various information to the target vehicle.

For example, when an abnormality occurs in the braking device of the vehicle 1, the wireless communication device 200 transmits a request to the vehicle positioned behind the vehicle 1 at the request of the braking control device 150 to the vehicle 1 It is possible to transmit information indicating a braking device abnormality.

In addition, when the vehicle 1 changes lanes, the radio communication apparatus 200 can transmit information indicating a lane change to a vehicle located at the left rear or right rear at the request of the driving assist system 170. [

In addition, when a collision with the preceding vehicle is expected, the wireless communication device 200 may transmit information warning the collision with the preceding vehicle to the vehicle positioned behind in response to the request of the driving assistance system 170. [

In addition, when a traveling obstacle obstructing the operation of the vehicle 1 is found, the wireless communication device 200 can transmit information indicating the discovery of the traveling obstacle to the vehicle positioned at the rear in accordance with the request of the driving assist system 170 have.

When the driver exchanges messages with the driver of the target vehicle through the AVN apparatus 110, the radio communication apparatus 200 transmits information including the driver's message to the target vehicle at the request of the AVN apparatus 110 .

Thus, the information transmitted to the target vehicle includes not only the information related to the operation of the vehicle 1 but also information related to the road on which the vehicle 1 travels, information related to the traffic situation of the road on which the vehicle 1 travels, Information indicating a message, and the like. In addition, the information transmitted to the target vehicle may have various formats such as sound, text, or video.

If the target vehicle is not selected (NO in 1020), the vehicle 1 prepares for communication with the nearby vehicles V1, V2, V3 (1050).

Specifically, the radio communication apparatus 200 of the vehicle 1 can form an omnidirectional beam pattern BP.

For example, when the target vehicle is not selected and information must be transmitted to all the nearby vehicles V1, V2, and V3, the wireless communication apparatus 200 transmits the omni-directional beam pattern BP4 as shown in Fig. . Specifically, the wireless communication control module 310 of the wireless communication device 200 may not generate the phase difference [Delta] [phi] between the phase shifters 332. [

When the omnidirectional beam pattern BP4 is formed, the vehicle 1 can communicate with all of the surrounding vehicles V1, V2, V3. In other words, the vehicle 1 can broadcast information to all the nearby vehicles V1, V2, V3.

Then, the vehicle 1 transmits information to the nearby vehicles V1, V2, and V3 (1060).

The radio communication apparatus 200 of the vehicle 1 can transmit various information to the neighboring vehicles V1, V2 and V3.

For example, when an abnormality occurs in the engine of the vehicle 1, the radio communication apparatus 200 transmits information indicating an engine abnormality to all the nearby vehicles V1, V2, V3 at the request of the engine control system 130 Broadcasting can be done.

As described above, the information transmitted to all the peripheral roads V1, V2, and V3 may include urgent information related to the operation of the vehicle 1. [ In addition, the information transmitted to the target vehicle may have various formats such as sound, text, or video.

As described above, the vehicle 1 can selectively provide information to the vehicle designated or automatically designated by the driver using the beam-forming characteristic of the array antenna.

Fig. 24 shows another example of a vehicle communication method according to an embodiment. 25 shows that the position of the target vehicle is changed, Fig. 26 shows tracking of the position of the target vehicle in accordance with the communication method shown in Fig. 24, Fig. 27 shows the case where the communication method shown in Fig. Thereby re-forming the beam pattern.

Hereinafter, a method 1100 in which the vehicle 1 maintains communication with the target vehicle will be described with reference to Figs.

The vehicle 1 determines whether it is communicating with the target vehicle (1110).

The vehicle 1 can communicate with the target vehicle for various reasons. For example, the vehicle 1 can communicate with the target vehicle when the driver commands the communication with the target vehicle or transmits the operation information of the vehicle 1 to the target vehicle.

Further, the vehicle 1 may form a beam pattern BP for communication with the target vehicle. Specifically, the vehicle 1 can detect the position of the target vehicle and form a beam pattern BP according to the position of the target vehicle.

If the vehicle 1 is not communicating with the target vehicle (NO at 1110), the vehicle 1 continues its operation.

Further, if communicating with the target vehicle (YES in 1110), the vehicle 1 determines whether the target vehicle has deviated from the beam pattern (1120).

Specifically, the vehicle 1 can use the wireless communication device 200 to determine whether the target vehicle has deviated from the beam pattern.

When the relative position of the target vehicle with respect to the vehicle 1 is changed, the target vehicle can deviate from the beam pattern BP. If the target vehicle deviates from the beam pattern BP, the communication between the vehicle 1 and the target vehicle can be disconnected.

For this reason, the vehicle 1 can determine whether the target vehicle has deviated from the beam pattern BP in various ways.

For example, a third beam pattern BP may be formed to communicate with the third vehicle V3 located at the first position P1 as shown in Fig. At this time, when the third vehicle V3 moves from the first position P1 to the second position P2, the third vehicle V3 can deviate from the third beam pattern BP3.

If the target vehicle deviates from the beam pattern, the intensity of the radio signal transmitted by the vehicle 1 to the target vehicle can be reduced, as well as the intensity of the radio signal received by the vehicle 1 from the target vehicle decreases.

For this reason, the wireless communication device 200 can detect the intensity of the wireless signal received from the target vehicle, and determine whether the target vehicle has deviated from the beam pattern based on the intensity of the detected wireless signal.

Specifically, when the strength of the communication signal is less than a predetermined value, the wireless communication apparatus 200 determines that the target vehicle has deviated from the beam pattern. If the intensity of the communication signal is greater than a predetermined value, the wireless communication apparatus 200 It can be determined that it is located inside the beam pattern of the target vehicle.

If it is determined that the target vehicle has not deviated from the beam pattern (NO at 1120), the vehicle 1 continues communication with the target vehicle.

Further, if it is determined that the target vehicle has deviated from the beam pattern (YES in 1120), the vehicle re-detects the position of the target vehicle (1130).

Specifically, the vehicle 1 can use the driving assistance system 170 to redetect the position of the target apparatus. When it is determined that the target vehicle has deviated from the beam pattern, the wireless communication device 200 can transmit the position detection request of the target vehicle to the driving assist system 170 through the vehicle communication network NT.

The driving assist system 170 can re-detect the position of the target vehicle by using the radar modules 171a, 171b, 171c, and 171d: 171 or the ultrasonic sensor module (not shown). In particular, the driving assistance system 170 can redetect a new position of the target vehicle based on the previous position of the target vehicle.

Even if the target vehicle deviates from the beam pattern, the new position of the target vehicle is not significantly different from the initial position because the vehicle continuously moves.

For example, even if the third vehicle V3 as the target vehicle moves from the first position P1 to the second position P2 as shown in Fig. 26, (P2) does not deviate greatly from the first position (P1).

Using this point, the driving assist system 170 can detect the new position of the target vehicle by using the radar sensor corresponding to the previous position of the target vehicle. According to the example shown in Fig. 26, the driving assist system 170 is configured to move the third vehicle V3, which is located at the second position P2, by using the third radar sensor 171c corresponding to the first position P1, Can be detected.

When the position of the target vehicle is detected, the driving assistance system 170 can transmit the position information including the position of the target vehicle to the wireless communication device 200. [

As another example, the vehicle 1 can acquire the image of the target vehicle using an external camera (not shown) at the time when the target vehicle is selected. Then, when the target vehicle deviates from the beam pattern, the vehicle 1 re-detects the positions of the nearby vehicles V1, V2, V3, acquires the images of the nearby vehicles V1, V2, V3, (V1, V2, V3) and the image of the target vehicle. The vehicle 1 also distinguishes the target vehicle from the other nearby vehicles V1 and V2 based on the comparison result between the image of the nearby vehicles V1, V2 and V3 and the image of the target vehicle, can do.

After re-detecting the position of the target vehicle, the vehicle 1 changes the beam pattern BP (1140).

Specifically, the radio communication apparatus 200 of the vehicle 1 can form a beam pattern BP according to the new position of the target vehicle.

For example, when the third vehicle V3 in the second position P2 is detected, the wireless communication apparatus 200 determines that the beam pattern is the third vehicle V3 in the second position P2 The main direction? Of the beam pattern can be determined. The main direction? Of the beam pattern BP may be directed to the second position P2 of the third vehicle V3. Specifically, the wireless communication control module 310 of the wireless communication device 200 performs wireless communication with the phase converter 332 to form a fifth beam pattern BP5 whose main direction (?) Faces the second position P2. The phase difference ?? can be adjusted. When the fifth beam pattern BP5 is formed, the vehicle 1 can continue communication with the third vehicle V3.

As described above, when the target vehicle leaves the beam pattern during communication with the target vehicle, the vehicle 1 re-detects the position of the target vehicle and forms a new beam pattern corresponding to the position of the re-detected target vehicle .

Fig. 28 shows another example of a communication method of a vehicle according to an embodiment. Fig. 29, Fig. 30, and Fig. 31 show reformation of a beam pattern according to the communication method shown in Fig.

Hereinafter, a method 1200 in which the vehicle 1 maintains communication with a target vehicle will be described with reference to Figs. 28 to 31. Fig.

The vehicle 1 determines whether it is communicating with the target vehicle (1210).

If the vehicle 1 is not communicating with the target vehicle (NO at 1210), the vehicle 1 continues its operation.

Further, if communicating with the target vehicle (YES in 1210), the vehicle 1 re-detects the position of the target vehicle (1220).

Specifically, the vehicle 1 can use the driving assistance system 170 to redetect the position of the target apparatus.

Even if the target vehicle deviates from the beam pattern, the new position of the target vehicle is not significantly different from the initial position because the vehicle continuously moves. Using this point, the driving assist system 170 can detect the new position of the target vehicle by using the radar sensor corresponding to the previous position of the target vehicle.

For example, as shown in Fig. 29, the driving assist system 170 can detect the third vehicle V3 located at the first position P1 using the third radar sensor 171c.

30, the driving assist system 170 detects the third vehicle V3 which has moved from the first position P1 to the second position P2 by using the third radar sensor 171c can do.

31, the driving assist system 170 detects the third vehicle V3 which has moved from the second position P2 to the third position P3 by using the third radar sensor 171c can do.

The driving assist system 170 that detects the position of the target vehicle again transmits the position information including the new position of the target vehicle to the wireless communication device 200. [

After re-detecting the position of the target vehicle, the vehicle 1 changes the beam pattern BP (1230).

30, when the third vehicle V3, which is the target vehicle, moves from the first position P1 to the second position P2, the radio communication apparatus 200 determines that the beam pattern is the second The main direction? Of the beam pattern is determined so as to cover the third vehicle V3 of the position P2 and the fifth beam pattern BP5 whose main direction? The phase difference [Delta] [phi] between the phase shifters 332 can be adjusted.

31, when the third vehicle V3 moves from the second position P2 to the third position P3, the wireless communication apparatus 200 determines that the beam pattern is at the third position P3 To determine the main direction? Of the beam pattern to cover the third vehicle V3 and to form the sixth beam pattern BP6 with the main direction? Facing the third position P3. ) Can be adjusted.

Then, the vehicle 1 determines whether communication with the target vehicle has ended (1240).

If communication with the target vehicle continues (NO in 1240), the vehicle 1 repeats the position detection of the target vehicle and the beam pattern formation.

Further, when the communication with the target vehicle is terminated (YES in 1240), the vehicle 1 stops forming the beam pattern.

As described above, the vehicle 1 can continuously detect the position of the target vehicle during communication, and change the beam pattern according to the detected position of the target vehicle.

Fig. 32 shows another example of a communication method of a vehicle according to an embodiment. Fig. 33, Fig. 34, Fig. 35 and Fig. 36 illustrate how to reshape a beam pattern according to the communication method shown in Fig. do.

A method 1300 for the vehicle 1 to maintain communication with the target vehicle will be described below with reference to Figs. 32 to 36. Fig.

The vehicle 1 determines whether it is communicating with the target vehicle (1310).

If the vehicle 1 is not in communication with the target vehicle (NO at 1310), the vehicle 1 continues its operation.

If it is in communication with the target vehicle (YES in 1310), the vehicle 1 determines whether the communication quality is smaller than the reference value (1320).

The radio communication apparatus 200 of the vehicle 1 can evaluate the communication quality in various ways during communication with the target vehicle. For example, the wireless communication device 200 may evaluate the communication quality based on the strength of the wireless signal received from the target vehicle, or evaluate the communication quality based on the reception rate of the signal transmitted from the target vehicle.

Thereafter, the wireless communication device 200 can compare the evaluated communication quality with a predetermined reference value. For example, the radio communication device 200 may compare the strength of the radio signal received from the target vehicle with the reference strength or compare the transmission rate of the data with the target vehicle to the reference transmission rate.

Further, the wireless communication apparatus 200 can determine whether the communication quality is smaller than the reference value in accordance with the result of the comparison of the evaluated communication quality with a predetermined reference value.

If the communication quality is equal to or greater than the reference value (NO in 1320), the vehicle 1 continues communication with the target vehicle.

If the communication quality is smaller than the reference value (YES in 1320), the vehicle 1 rotates the beam pattern BP in the first direction (1330).

If the relative position of the target vehicle is changed during communication with the target vehicle, the communication quality with the target vehicle may deteriorate. For example, as shown in Fig. 33, the vehicle 1 may form a third beam pattern BP3 for communicating with the third vehicle V3. At this time, if the communication obstacle O (for example, another vehicle) is located between the third vehicle V3 and the vehicle 1, the communication quality between the vehicle 1 and the third vehicle V3 deteriorates .

34, the vehicle 1 may form a third beam pattern BP for communicating with the third vehicle V3 located at the first position P1. At this time, if the third vehicle V3 moves from the first position P1 to the second position P2, the communication quality between the vehicle 1 and the third vehicle V3 may deteriorate.

Hereinafter, it is assumed that the target vehicle has moved and the communication quality has deteriorated in order to facilitate understanding.

As described above, when the communication quality deteriorates and the communication quality becomes smaller than the reference value, the radio communication apparatus 200 of the vehicle 1 can rotate the beam pattern in the first direction to improve the communication quality. Specifically, the radio communication apparatus 200 can adjust the phase difference ?? between the unit antennas 334a to 334h in order to rotate the main direction? Of the beam pattern BP in the first direction.

For example, as shown in Fig. 35, the wireless communication apparatus 200 can form the fifth beam pattern BP5 by rotating the third beam pattern BP3 in the first direction D1.

Then, the vehicle 1 determines whether the communication quality is improved (1340).

The radio communication apparatus 200 of the vehicle 1 can again evaluate the communication quality after rotating the beam pattern in the first direction. Thereafter, the radio communication apparatus 200 can compare the communication quality before the rotation of the beam pattern with the communication quality after the rotation of the beam pattern.

Further, the radio communication apparatus 200 can determine whether or not the communication quality is improved based on the comparison result between the communication quality before the rotation of the beam pattern and the communication quality after the rotation of the beam pattern.

If it is determined that the communication quality is improved (YES in 1340), the vehicle 1 determines whether the communication quality of the vehicle 1 is larger than the reference value (1350).

The radio communication apparatus 200 of the vehicle 1 can compare the estimated communication quality with a predetermined reference value after rotating the beam pattern in the first direction.

In addition, the wireless communication apparatus 200 can determine whether the communication quality is greater than the reference value based on the result of comparison between the estimated communication quality and the predetermined reference value after rotating the beam pattern.

If the communication quality is less than or equal to the reference value (NO in 1350), the vehicle 1 repeats the beam pattern rotation and communication quality evaluation. If the communication quality is larger than the reference value (YES in 1350), the vehicle 1 ends the beam pattern changing operation for maintaining communication with the target vehicle.

If it is determined in step 1340 that the communication quality is not improved (NO in 1340), the vehicle 1 rotates the beam pattern BP in the second direction (1360).

If the communication quality is not improved even though the beam pattern BP is rotated in the first direction, the wireless communication device 200 may rotate the beam pattern BP in the second direction opposite to the first direction. Specifically, the wireless communication apparatus 200 can adjust the phase difference ?? between the unit antennas 334a to 334h to rotate the main direction? Of the beam pattern BP in the second direction.

For example, as shown in Fig. 36, the wireless communication apparatus 200 can form the sixth beam pattern BP6 by rotating the third beam pattern BP3 in the second direction D2.

Then, the vehicle 1 judges whether the communication quality is improved (1370).

The radio communication apparatus 200 of the vehicle 1 can again evaluate the communication quality after rotating the beam pattern in the second direction. Thereafter, the radio communication apparatus 200 can compare the communication quality before the rotation of the beam pattern with the communication quality after the rotation of the beam pattern.

In addition, the radio communication apparatus 200 can determine whether the communication quality is improved according to the comparison result of the communication quality after rotating the beam pattern and the communication quality before the rotation of the beam pattern.

If it is determined that the communication quality is improved (YES in 1370), the vehicle 1 determines whether the communication quality of the vehicle 1 is larger than the reference value (1380).

The radio communication apparatus 200 of the vehicle 1 can compare the estimated communication quality with a predetermined reference value after rotating the beam pattern in the second direction.

If the communication quality is less than or equal to the reference value (NO in 1380), the vehicle 1 repeats the beam pattern rotation and communication quality evaluation. If the communication quality is larger than the reference value (YES in 1380), the vehicle 1 ends the beam pattern changing operation for maintaining communication with the target vehicle.

If it is determined in step 1340 that the communication quality is not improved (NO in 1370), the vehicle 1 rotates the beam pattern BP in the first direction (1330).

That is, the radio communication apparatus 200 of the vehicle 1 can repeat the evaluation of the rotation and the communication quality of the beam pattern.

As described above, the vehicle 1 can evaluate the communication quality during communication, and change the beam pattern according to the evaluation result. [0200] FIG. 37 shows another example of the communication method of the vehicle according to the embodiment, Figs. 38, 39, 40, 41, 42, 43, and 44 show formation of a beam pattern according to the communication method shown in Fig.

Referring to Figs. 37 to 44, a method 1400 in which the vehicle 1 forms a beam pattern will be described.

First, the vehicle 1 determines whether to generate a fixed target beam pattern (1410).

Here, the fixed target beam pattern means forming a beam pattern toward a fixed position. According to the communication method described above, the vehicle 1 forms a beam pattern toward the target vehicle, and the target vehicle moves with the vehicle 1. [ In other words, the communication method described above forms a beam pattern on a moving target vehicle.

On the contrary, the fixed target beam pattern differs from the beam pattern directed to the target vehicle described above in that it forms a beam pattern toward a fixed position.

The vehicle 1 may generate a fixed target beam pattern by various causes.

For example, when the driver finds a traveling obstacle O that obstructs the traveling of another vehicle during traveling of the vehicle 1 as shown in FIG. 38, the presence of the traveling obstacle O in the rearward vehicle and the presence of the traveling obstacle O in the rearward vehicle The vehicle 1 can generate a beam pattern which is directed to a fixed position behind the traveling obstacle O in order to inform the position of the traveling obstacle O. [ Here, the traveling obstacle O may be anything that is located on the road such as a rockfall, an accident vehicle, a road repair, or the like and obstructs the running of the vehicle.

As another example, when the position information of the fixed target is received together with the generation request of the fixed target beam pattern from the external terminal or the external vehicle while the vehicle 1 is running, the vehicle 1 is received Lt; RTI ID = 0.0 > target beam pattern. &Lt; / RTI >

If it is determined that the fixed target beam pattern is not generated (NO in 1410), the vehicle 1 continues the operation being performed.

Further, if it is determined to generate the fixed target beam pattern (YES in 1410), the vehicle 1 acquires the absolute position information of the fixed target (1420).

Here, the absolute position information indicates the absolute coordinates of the fixed target, and may include geographical position information such as latitude and longitude.

The vehicle 1 can obtain the absolute position information of the fixed target in various ways.

For example, the vehicle 1 can calculate the absolute position information of the fixed target based on the absolute position information of the vehicle 1 and the relative position information of the fixed target.

The vehicle 1 can acquire the absolute position information of the vehicle 1 using the GPS module 115 included in the AVN apparatus 110 and can acquire the absolute position information of the vehicle 1 from the radar module 171 included in the driving assist system 170 The relative position information of the fixed target can be obtained.

39, when the vehicle 1 finds the traveling obstacle O while driving, the presence of the traveling obstacle O in the first vehicle V1 located behind the traveling obstacle O and the presence of the traveling obstacle O O, the vehicle 1 can set the fixed target T at the rear of the traveling obstacle O and obtain the positional information of the fixed target. At this time, the fixed target T may be positioned away from the traveling obstacle O by a predetermined safety distance d in the direction opposite to the running direction of the vehicle 1. [

Specifically, the vehicle 1 uses the radar module 171 of the driving assist system 170 to send a detection radio wave toward the traveling obstacle O and to receive reflected radio waves reflected from the traveling obstacle O have. The vehicle 1 can acquire the relative position information of the traveling obstacle O including the distance to the traveling obstacle O and the direction of the traveling obstacle O based on the reflected radio wave received by the radar module 171 have. The vehicle 1 can also acquire the absolute position information of the vehicle 1 using the GPS module 115 of the AVN apparatus 110. [

As described above, the vehicle 1, which has acquired the relative position information of the traveling obstacle O and the absolute position information of the vehicle O, can obtain the absolute position information of the traveling obstacle O. [

The vehicle 1 can calculate the absolute position information of the fixed target T based on the absolute position information of the traveling obstacle O, the running direction of the vehicle 1, and the safety distance d.

At this time, the driving assist system 170 of the vehicle 1 calculates the absolute position information of the fixed target T and transmits it to the wireless communication device 200 via the vehicle communication network NT, May receive the relevant information from the driving assist system 170 and the AVN apparatus 110 to directly calculate the absolute position information of the fixed target T. [

As another example, the vehicle 1 may obtain absolute positional information of a fixed target from an external terminal or an external vehicle. Specifically, the vehicle 1 acquires the absolute position information of the fixed target from the preceding vehicle in which the traveling obstacle O is found first, obtains the absolute position information of the fixed target from an external server or the like that provides information on the traffic situation can do.

Then, the vehicle 1 obtains the relative position information of the fixed target T (1430).

Here, the relative position information indicates the coordinates of the fixed target T in the coordinate system having the vehicle 1 as the origin. For example, the relative positional information of the fixed target T is transmitted from the radio communication apparatus 200 of the vehicle 1 to the fixed target T based on the distance of the fixed target T and the running direction of the vehicle 1, Direction.

The vehicle 1 can obtain the relative positional information of the fixed target in various ways.

For example, the vehicle 1 can calculate the relative position information of the fixed target T based on the absolute position information of the fixed target T obtained earlier and the absolute position information of the vehicle 1. [ Also, if the vehicle 1 has acquired the absolute position information of the fixed target T using the relative position information of the fixed target T, the vehicle 1 is used for obtaining the absolute position information of the fixed target T The relative position information may be used as it is.

Then, the vehicle 1 determines whether it can generate a beam pattern covering the fixed target T (1440).

Here, the beam pattern covers the fixed target T when the radio wave of the beam pattern generated by the radio communication device 200 of the vehicle 1 is received at the position of the fixed target T, Quot; is greater than or equal to a predetermined reference intensity. In other words, it means that the information that the vehicle 1 wants to transmit through the propagation of the beam pattern can be clearly received at the position of the fixed target T.

The vehicle 1 can determine whether it can generate a beam pattern covering the fixed target T in various ways.

For example, the vehicle 1 calculates a reference distance at which the intensity of the radio wave of the beam pattern generated by the wireless communication device 200 is less than the reference intensity, and compares the reference distance with the fixed target T .

If the reference distance is equal to or greater than the distance to the fixed target T, the vehicle 1 determines that the beam pattern covers the fixed target T, and if the reference distance is smaller than the distance to the fixed target T The vehicle 1 can judge that the beam pattern does not cover the fixed target T. [

As another example, the vehicle 1 may determine whether the intensity of the propagation of the beam pattern produced by the wireless communication device 200 is greater than or equal to the reference intensity at the location of the fixed target T. The vehicle 1 determines the intensity of the radio wave at the fixed target T based on the intensity of the radio wave output from the radio communication device 200, the attenuation rate of the radio wave in the free space, and the distance to the fixed target T , It is possible to compare the intensity of the judged radio wave with the reference intensity.

If the intensity of the radio wave at the fixed target T is equal to or greater than the reference intensity, the vehicle 1 judges that the beam pattern covers the fixed target T and the intensity of the radio wave at the fixed target T is If it is smaller than the reference intensity, the vehicle 1 can judge that the beam pattern does not cover the fixed target (T).

If it is determined that it is possible to generate a beam pattern covering the fixed target (1440 example), the vehicle 1 generates a beam pattern 1450 towards the fixed target (T).

Specifically, the vehicle 1 may use the wireless communication device 200 to generate a beam pattern according to the relative position of the fixed target T. [

For example, when the fixed target T is located on the rear left side of the vehicle 1 as shown in FIG. 40, the vehicle 1 uses the radio communication apparatus 200 to transmit the seventh beam pattern (BP) can be generated. Specifically, the wireless communication device 200 determines the main direction (?) Toward the fixed target (T), and the seventh beam pattern BP7 whose main direction (?) Is directed to the fixed target (T) The phase difference ?? of the phase shifter 332 can be adjusted.

Then, the vehicle 1 transmits information (1460) through the beam pattern.

Specifically, the radio communication apparatus 200 of the vehicle 1 can modulate a carrier wave forming a beam pattern so that information on the traveling obstacle O is included. The information on the traveling obstacle O may include the presence of the traveling obstacle O and the position information of the traveling obstacle O. [

The vehicle entering the inside of the beam pattern BP can obtain the presence of the traveling obstacle O on the traveling route and the position information of the traveling obstacle O through the wireless signal included in the beam pattern.

For example, as shown in FIG. 41, the first vehicle V1, which has entered the seventh beam pattern BP7 formed by the vehicle 1, travels on the traveling route through a radio signal included in the beam pattern The driver can be warned that the obstacle O exists.

Then, the vehicle 1 obtains the relative position information of the fixed target T again (1430).

The position of the fixed target T is fixed while the relative position of the fixed target T with respect to the vehicle 1 changes in accordance with the running of the vehicle 1 because the vehicle 1 is running.

For example, when the fixed target T is positioned behind the vehicle 1 as shown in Figs. 40 and 41, the distance between the fixed target T and the vehicle 1 The direction of the fixed target T with respect to the vehicle 1 also changes.

For this reason, the vehicle 1 acquires the relative position of the fixed target T again.

For example, the vehicle 1 reacquires the absolute position of the vehicle 1 using the GPS module 115 of the AVN device 110, and obtains the absolute position information of the fixed target T and the re- 1 can be calculated based on the absolute position information of the fixed target (T).

Then, the vehicle 1 again determines whether it can generate a beam pattern covering the fixed target (1440).

As described above, due to the running of the vehicle 1, the relative position of the fixed target T (in particular, the distance between the vehicle and the fixed target) changes. Therefore, the coverage of the beam pattern formed by the vehicle 1 changes, and the vehicle 1 again judges whether the fixed target is located within the coverage of the beam pattern.

If it is determined that it is possible to generate a beam pattern covering the fixed target T (example of 1440), the vehicle 1 again generates a beam pattern 1450 and transmits 1460 information via the beam pattern, .

In this way, the vehicle 1 continuously generates the beam pattern toward the fixed target T, and by transmitting the presence of the traveling obstacle O and the position information of the traveling obstacle O, O), and can confirm the position of the traveling obstacle (O).

Thereafter, the vehicle 1 receives the relative position information acquisition 1430 of the fixed target T, the determination 1440 of generating a beam pattern covering the fixed target, the beam pattern generation 1450, and the information transmission 1460 Repeat.

If it is determined that the beam pattern covering the fixed target can not be generated (NO in 1440), the vehicle 1 requests a fixed target beam pattern generation to the neighboring vehicle (1470).

The beam pattern generated by the vehicle 1 along with the running of the vehicle 1 may not reach the fixed target T as shown in Fig.

In this way, when the beam pattern generated by the vehicle 1 does not reach the fixed target T, the vehicle 1 generates a fixed target beam pattern to the nearby vehicle to continue the transmission of information to the fixed target T And can transmit the location information of the fixed target (T).

43, the vehicle 1 requests generation of a fixed target beam pattern to the second vehicle V2 running on the rear side of the vehicle 1, and the position information of the fixed target T Can be transmitted.

The second vehicle V2 receiving the request for generating the fixed target beam pattern and the position information of the fixed target T generates the eighth beam pattern BP8 directed to the fixed target T as shown in Fig. . Also, the second vehicle V2 can transmit the presence of the traveling obstacle O and the position information of the traveling obstacle O through the eighth beam pattern BP8.

As such, the second vehicle V2 in the vehicle 1 generates a beam pattern toward the fixed target T, and by transmitting the presence of the traveling obstacle O and the position information of the traveling obstacle O, It is possible to recognize the presence of the traveling obstacle O in front and confirm the position of the traveling obstacle O. [

As described above, the vehicle 1 can generate a beam pattern toward a fixed target with an absolute position fixed to provide information on the obstacle O to the trailing vehicle V1.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein; It will be understood that various modifications may be made without departing from the spirit and scope of the invention.

1: vehicle 100: electronic device
200: wireless communication device 210:
220: internal communication unit 300: wireless communication unit

Claims

In a vehicle communicating with an external device using a beam pattern,
A wireless communication unit forming the beam pattern for wireless communication;
And a control unit for controlling the wireless communication unit to obtain the position information of the fixed target having the fixed position and form the beam pattern toward the fixed target,
Wherein the control unit controls the wireless communication unit to re-form the beam pattern according to the relative position of the fixed target with respect to the vehicle.

The method according to claim 1,
And when the relative position of the fixed target is changed in accordance with the running of the vehicle, the control unit controls the wireless communication unit to regenerate a beam pattern directed to the changed position.

3. The method of claim 2,
Wherein the control unit controls the wireless communication unit to set a fixed target corresponding to the position of the running obstacle and to generate a beam pattern toward the set fixed target when the running obstacle is detected during running of the vehicle.

The method of claim 3,
A position information obtaining unit for obtaining absolute position information of the vehicle; And
Further comprising a radar module for acquiring relative position information of the fixed target based on the vehicle,
Wherein the control unit obtains absolute position information of the fixed target based on absolute position information of the vehicle and relative position information of the fixed target.

3. The method of claim 2,
Wherein when a beam pattern formation request from the external device to the fixed target is received, the control unit controls the wireless communication unit to form a beam pattern toward the fixed target based on absolute position information of the fixed target received from the external device, Lt; / RTI >

3. The method of claim 2,
And when the relative position of the fixed target is changed, the control unit determines whether the beam pattern reaches the fixed target.

The method according to claim 6,
And when the beam pattern reaches the fixed target, the control unit controls the wireless communication unit to generate a beam pattern toward the fixed target.

The method according to claim 6,
And when the beam pattern does not reach the fixed target, the control unit transmits position information of the fixed target to the nearby vehicle using the wireless communication unit.

A communication method of a vehicle communicating with an external device using a beam pattern,
Acquiring position information of a fixed target whose position is fixed;
Forming the beam pattern toward the fixed target;
And re-forming the beam pattern according to a relative position of the fixed target with respect to the vehicle.

10. The method of claim 9,
The beam pattern may be re-
And re-forming a beam pattern directed to the changed position when the relative position of the fixed target is changed according to the running of the vehicle.

11. The method of claim 10,
The process of acquiring the position information of the fixed target
And setting a fixed target corresponding to a position of the traveling obstacle when the traveling obstacle is detected during traveling of the vehicle.

12. The method of claim 11,
The process of acquiring the position information of the fixed target
Obtaining absolute position information of the vehicle;
Obtaining relative position information of the fixed target based on the vehicle; And
Further comprising the step of obtaining absolute position information of the fixed target based on absolute position information of the vehicle and relative position information of the fixed target.

11. The method of claim 10,
Wherein the step of acquiring the position information of the fixed target comprises:
And receiving absolute positional information of the fixed target received from the external device when a beam pattern formation request from the external device to the fixed target is received.

11. The method of claim 10,
The beam pattern may be re-
And determining whether the beam pattern reaches the fixed target when the relative position of the fixed target is changed.

15. The method of claim 14,
The beam pattern may be re-
And generating a beam pattern toward the fixed target when the beam pattern reaches the fixed target.

15. The method of claim 14,
The beam pattern may be re-
And transmitting position information of the fixed target to a nearby vehicle when the beam pattern fails to reach the fixed target.

1. A vehicular wireless communication apparatus included in a vehicle that communicates with an external apparatus using a beam pattern,
A wireless communication unit forming the beam pattern for wireless communication;
And a control unit for controlling the wireless communication unit to obtain the position information of the fixed target having the fixed position and form the beam pattern toward the fixed target,
Wherein the control unit controls the wireless communication unit to re-form the beam pattern in accordance with a relative position of the fixed target based on the vehicle.

18. The method of claim 17,
Wherein when the relative position of the fixed target is changed in accordance with the running of the vehicle, the control unit controls the wireless communication unit to regenerate a beam pattern directed to the changed position.

19. The method of claim 18,
Wherein the control unit sets the fixed target corresponding to the position of the running obstacle and controls the wireless communication unit to generate a beam pattern toward the set fixed target when the running obstacle is detected during running of the vehicle.

20. The method of claim 19,
A position information obtaining unit for obtaining absolute position information of the vehicle; And
Further comprising a radar module for acquiring relative position information of the fixed target based on the vehicle,
Wherein the control unit obtains absolute position information of the fixed target based on absolute position information of the vehicle and relative position information of the fixed target.

19. The method of claim 18,
Wherein when a beam pattern formation request from the external device to the fixed target is received, the control unit controls the wireless communication unit to form a beam pattern toward the fixed target based on absolute position information of the fixed target received from the external device, Based on the control signal.

19. The method of claim 18,
And when the relative position of the fixed target is changed, the control unit determines whether the beam pattern reaches the fixed target.

23. The method of claim 22,
And when the beam pattern reaches the fixed target, the control unit controls the wireless communication unit to generate a beam pattern toward the fixed target.

23. The method of claim 22,
Wherein when the beam pattern does not reach the fixed target, the control unit transmits the position information of the fixed target to the nearby vehicle using the wireless communication unit.