KR101850254B1 - Inter-Vehicle Communication System For Supporting Connected Car Environment - Google Patents

Abstract

The present invention relates to an inter-vehicle communication system, which is to support connected vehicle environment to safely and effectively support vehicle driving by properly setting a geo-fence of a vehicle and performing communication between the vehicles. According to the present invention, the inter-vehicle communication system includes: a base station server; a mobile terminal of a user getting in the vehicle including an inter-vehicle communication function based on wireless communication, wherein the mobile terminal communicates with the base station server by a base station; and a geo-fence setting unit receiving position data on the mobile terminal, orientation data on the vehicle, and acceleration data, which are collected from the vehicles by the base station, and setting the geo-fence in the vehicle. According to the present invention, the geo-fence setting unit includes: a vehicle position mapping module mapping a geographical position of the vehicle based on the position data of the each vehicle; an inter-vehicle distance calculating module calculating an inter-vehicle distance from the other vehicle based on the vehicle of the user in accordance with the geographical position mapped by the vehicle position mapping module; a geo-fence change module setting a radius of the geo-fence of the vehicle by using the inter-vehicle distance calculated by the inter-vehicle distance calculating module, a vehicle speed of the vehicle of the user, and a driving direction of the vehicle of the user, about a front vehicle existing in a communication selection area to limit the communication between vehicles by using orientation information detected by a magnetic sensor of the mobile terminal of the vehicle of the user; and a geo-fence information storing unit storing geo-fence information which is set.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an inter-vehicle communication system for supporting a connected car environment,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intervehicular communication system for supporting a connected car environment, and more particularly, to an intervehicle communication system for supporting a connected car environment, To-vehicle communication system for supporting a vehicle-mounted car environment.

Connected Car is a next-generation technology that aims to provide a safe and comfortable driving experience through real-time communication with vehicles, infrastructures, smart devices and the like, which means cars connected to the network by integrating automobile and IT technology.

Even if the autonomous navigation function of the next-generation connected car is not fully equipped, the technology for providing assistance to the driver by displaying the intersection and the traffic information around the road on the navigation terminal by using communication between the external traffic management server and the vehicle has been implemented .

Since the prior art has focused on developing a communication technology for receiving traffic information by connecting the outside and the network, research and development related to a service model that selectively receives desired information from nearby vehicles as an information source is insufficient. In an environment in which information is transmitted indiscriminately from neighboring vehicles capable of communicating with the vehicle, the communication traffic increases, resulting in a decrease in communication speed and an increase in computation processing load. This causes a great cost to construct an infrastructure for supporting communication between vehicles, There is a problem that the activation of the inter-communication technology may be hindered.

Accordingly, it is necessary to selectively provide the desired information through the situation recognition of the vehicle densities, which frequently change depending on the road environment, such as intersections with severe traffic congestion and low-speed highways.

1. Registered Patent No. 10-1446546 (Registered "Location Based Real Time Vehicle Information Display System") 2. Publication No. 10-2017-0054783 (published on May 17, 2018. "Method and system for collecting traffic information using smart phone")

none

It is an object of the present invention to provide a communication system and a method of controlling the same, which can selectively and securely provide desired traffic information from neighboring vehicles by changing the geofence of the vehicle according to the recognition of the situation around the vehicle using the user's mobile terminal, Vehicle communication system for supporting a car environment.

According to an aspect of the present invention, there is provided an intervehicle communication system for supporting a connected car environment, comprising: a base station server; A mobile terminal of a user aboard a vehicle communicating with the base station server via a base station and having a wireless communication-based vehicle communication function; And a geofence setting unit configured to receive the position data of the mobile terminal, the direction data of the vehicle, and the acceleration data collected from the vehicles through the base station and to set the geofence in the corresponding vehicle, An inter-vehicle distance calculating module for calculating an inter-vehicle distance between the vehicle and another vehicle based on the geographical position mapped by the vehicle position mapping module; Vehicle distance calculated by the inter-vehicle distance calculating module with respect to the preceding vehicle existing in the communication selection area for restricting inter-vehicle communication using the azimuth sensor information detected by the geomagnetism sensor of the mobile terminal of the self-vehicle, A geofence change setting a radius of the geofence of the vehicle using the vehicle speed and the traveling direction of the vehicle And a geofence information storage unit for storing the set geofence information.

The geofence setting unit may be provided in at least one of the base station server, the mobile terminal, and a vehicle control system mounted on the vehicle.

And the inter-vehicle distance calculated by the inter-vehicle distance calculating module is determined as the shortest distance between the geofence boundary of the vehicle and the geofence boundary of the preceding vehicle.

According to the present invention as described above, in a place where the inter-vehicle distance is short and the traffic congestion occurs, the radius of the geofence is reduced, so that a lot of undesirable situation recognition information is collected so that unnecessary arithmetic processing does not occur. By increasing the radius of the fence, the probability of collecting the desired situation recognition information is increased, and the vehicle can be supported safely and efficiently.

Further, the present invention can support a connected car environment using a smartphone, and thus it is possible to provide application services at low cost even in vehicles produced in the past, and to provide services at a low cost even in a vehicle having a connected car function to be produced in the future .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows an example of the use of an intervehicle communication system for supporting a connected car environment according to an embodiment of the present invention; Fig.
2 is a diagram exemplarily showing a geofence set in a driving vehicle on the road;
3 is a block diagram showing the configuration of a mobile terminal of a vehicle occupant according to an embodiment of the present invention;
4 is a block diagram illustrating a configuration of a base station server that communicates with a mobile terminal of a user according to an embodiment of the present invention;
5 is a block diagram showing a detailed configuration of the geofence setting unit of FIG.
6 is a diagram for explaining a method of changing a geofence set in a vehicle according to the present invention.
Fig. 7A is a diagram showing a case in which the distance between the preceding vehicle and the preceding vehicle is long, and the radius of the geofence is set wide; Fig.
Fig. 7B is a diagram showing a case where the distance between the preceding vehicle and the preceding vehicle is short and the radius of the geofence is set narrow. Fig.
8 is a block diagram illustrating a configuration of a mobile terminal of an intervehicular communication system according to another embodiment of the present invention.
9 is a block diagram showing a configuration of an intervehicle communication system according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

The inter-vehicle communication system for supporting the connected car environment according to the present invention includes a mobile terminal 100 (200) of a user aboard a vehicle 10 and a peripheral vehicle 20 as shown in Fig. 1 And can communicate with the base station 300 using it.

The vehicles 10 and 20 may be provided with wireless communication-based vehicle communication function V2V to receive surrounding traffic information. For example, WiFi, Bluetooth, Zigbee, and WiMax can be applied. In another example, the vehicle-to-vehicle communication function (V2V) can be applied to a DSRC And it is possible to communicate packet messages up to 1km within 100ms as defined in IEEE 1609 and 802.11p. The communication method of the intervehicular communication function does not need to be particularly restricted, and the 60GHz millimeter wave based intervehicle communication function (V2V), which is applied to the inter-vehicle communication function (V2V) based on LTE (Long Term Evolution) May be applied.

Also, the vehicles 10 and 20 can mount a vehicle terminal (OBU) for automatic charge collection at the time of passing through a toll road, and include a proximity sensor for preventing collision during parking, a vehicle speed sensor for a cruise function, A part of or all of various sensors and auxiliary devices such as a radar or an ultrasonic sensor, a rearward surveillance camera, a lane departure warning system (LDWS), a GPS reception antenna, and the like can be mounted.

When the driving vehicle activates the vehicle-to-vehicle communication function (V2V), it receives various traffic information depending on the road traffic situation or otherwise, it is subjected to various traffic environments in which desired traffic information is insufficient. Accordingly, it is necessary to set an area (hereinafter, referred to as geofence) in which the vehicle can receive the traffic information so as to restrict the traffic information to be selectively provided in the situation where the geofences given to the vehicle cross each other As an example, as shown in Fig. 2, a geofence appropriate for each vehicle running on the road can be set. For example, a geofence 10-1 having a large radius may be set for the vehicle 10 having a far distance from the vehicle ahead, and a relatively small radius may be set for another vehicle 20 having a narrow distance between the front and the vehicle. And sets the fence 20-1.

A specific method for setting such a geofence will be described later with reference to FIG.

3, the mobile terminal 100 of the vehicle occupant includes a terminal control unit 110, a GPS module 120, a sensor module 130, a touch panel 140, a Wi-Fi module 150, a base station communication module 160 ), And a memory 170 may be provided.

The mobile terminal 100 may be any combination of two or more of, for example, a cellular telephone, a smart phone, a personal digital assistant, a media player, or navigation devices.

The mobile terminal 100 may communicate with the base station 300 through the base station communication module 160 under the control of the terminal control unit 110 and the terminal control unit 110 may use the operating program stored in the memory 170 The overall operation of the mobile terminal 100 can be controlled. The terminal control unit 110 can process a given function according to a user command through the touch panel 140 as a user interface. The touch panel 140 is implemented by integrating an input function and a display function, and can process a user command through touch input of an icon image or the like displayed on the screen.

The mobile terminal 100 may collect the GPS signal through the GPS module 120 and transmit it to the base station 300 as location data of the mobile terminal 100. Here, the location data of the mobile terminal 100 means location information of the vehicle 10.

The memory 170 stores various application programs to be applied to the smartphone and can perform an additional function of providing traffic information to the navigation function by activating the application program under the control of the terminal control unit 110. [

The sensor module 130 may include a geomagnetic sensor for detecting the orientation of the traveling vehicle and an acceleration sensor for detecting the vehicle speed. The sensor module 130 may additionally include various function sensors such as a photographing camera without being limited thereto.

4, the base station server 400 is connected to a plurality of geographically distributed base stations 300 via a network, and can communicate with the mobile terminal 100 of the vehicle occupant through each base station 300 .

The base station server 400 may include a server control unit 410, a communication module 420, a geofence setting unit 430, and a situation recognition database 440.

The server control unit 410 stores the information on the recognition of the traffic situation on the basis of the data collected from the vehicles 10 and 20 through the base station 300 in the situation recognition database 440 and transmits a geofence And controls the overall operation to be set. The situation recognition database 440 may store the situation recognition information such as vehicle density, traffic accident occurrence point, and the like for each section.

The communication module 420 can communicate with the mobile terminal 100 via the base station 300 and receives the position data of the mobile terminal 100, the bearing data of the vehicle, and the acceleration data, And provides it to the geofence setting unit 430.

5, the geofence setting unit 430 sets a geofence for each vehicle. The geofence setting unit 430 includes a vehicle position mapping module 431, an inter-vehicle distance calculation module 432, a geofence change module 433, And a fence information storage unit 434.

Because the traffic situation on the road can be varied, it is necessary to change the radius of the geofence so that it is very useful to provide the traffic information from the preceding vehicle with the same driving direction. have. Hereinafter, it is assumed that the vehicles are distributed as shown in FIG.

The vehicle position mapping module 431 calculates the allowable vehicles 10a (20a) 20b (20c) (20d) (20e) based on the position data of each vehicle collected via the base station 300, 0.0 > map < / RTI >

The inter-vehicle distance calculation module 432 calculates the inter-vehicle distance from the next vehicle on the basis of the mapped vehicle 10a according to the mapped geographic position. Since it is difficult to precisely measure the distance between the moving vehicles, The distance between the geopens is estimated using the distance between the geopens. In this case, when the geofence is previously set for the vehicle 10a, the previous geofence is used. When the geofance is set for the first-time car 10a, the initial geofence having the radius of the reference value is used.

For example, the inter-vehicle distance between the vehicle 10a and the preceding vehicle 20a is the shortest distance between the boundary of the geofance 10-1A of the vehicle 10a and the boundary of the geofence 20-1A of the preceding vehicle 20a (D1). As another example, the inter-vehicle distance between the vehicle 10a and the preceding vehicle 20b is the shortest distance between the boundary of the geofence 10-1A of the vehicle 10a and the boundary of the geofence 20-1B of the preceding vehicle 20b D2).

The geofence change module 433 is provided with the inter-vehicle distance calculated by the inter-vehicle distance calculation module 432, that is, the shortest distance between the geofences.

The geofence changing module 433 limits the object for vehicle-to-vehicle communication using the azimuth sensor information detected by the geomagnetism sensor of the mobile terminal 100 of the vehicle 10a. 6, the left limit azimuth La and the right limit azimuth Ra are set on the basis of the azimuth of the vehicle 10a and the area existing between the two threshold azimuth La and Ra is defined as the communication selection area S1 ), And the area outside the two threshold azimuth La (Ra) sets the communication exclusion zone S2. In this case, there may be a rear vehicle and left and right vehicles in the vicinity of the vehicle 10a. If traffic information from the nearby vehicles is provided, the amount of information calculation may be greatly increased.

The geofence changing module 433 calculates the vehicle speed V in accordance with the vehicle speed information detected by the acceleration sensor of the mobile terminal 100 of the vehicle 10a, And calculates the travel direction (P) using the corresponding position data.

The vehicle distance between the vehicle 1 and the vehicle existing in the communication selection area S1 set on the basis of the vehicle 10a is calculated and the vehicle speed V and the traveling direction P The geofence change module 433 sets a proper geofence radius for the vehicle 10a. The geofence information thus set is stored in the geofence information storage unit 434. For example, as shown in FIG. 7A, if the vehicle-to-vehicle distance between the vehicle 10a and the preceding vehicle 20 is far away from the communication selection area S1, the geofence 10-11 having a large radius is set. In this case, since the density of the vehicle is low, if the geofence for the vehicle 10a is set too small, it is not possible to have an opportunity to perform inter-vehicle communication in order to receive the desired traffic information. Accordingly, the geofence 10-11, which is set relatively wide in radius, crosses the geofences 20-11 of the preceding vehicle 20a, so that a vehicle for selectively providing traffic information from the preceding vehicle 20a Can communicate with each other.

As another example, if the vehicle-present distance between the vehicle 10a and the preceding vehicle 20b is short and the distance between the vehicle 10a and the preceding vehicle 20b is short as shown in FIG. 7B, the geophone 10-12 having a small radius is set. At this time, if the geofence for the vehicle 10a is set to be excessively wide, undesired traffic information is received from other dense vehicles, and the amount of calculation is increased. Therefore, it is necessary to set an appropriate radius. The geopens 10-12 of the relatively small radius and the geofences 20-12 of the preceding vehicle 20b intersect with each other to selectively receive the traffic information from the preceding vehicle 20b Can communicate with each other.

In the embodiments described so far, the base station server 400, which communicates with the user mobile terminals 100 and 200 on board the vehicle via the base station 300, The following description will be given of a method for communication between vehicles by setting the geofence of the corresponding vehicle in the user mobile terminal.

The mobile terminal 100A of the intervehicular communication system according to another embodiment of the present invention includes a terminal control unit 110, a GPS module 120, a sensor module 130, a touch panel 140, a WiFi Module 150, a base station communication module 160, and a memory 170, and a detailed description thereof will be briefly described.

The mobile terminal 100A may include a geofence setting unit 180.

The geofence setting unit 180 sets a geofence between the self-vehicle and the surrounding vehicle. The geofence setting unit 180 includes a vehicle position mapping module 181, an inter-vehicle distance calculation module 182, a geofence change module 183, Section 184 as shown in FIG.

The vehicle location mapping module 181 can communicate with the base station server 400 to receive location data of other vehicles and map the geographical location of each vehicle. 20a, 20b, 20c, 20d, and 20e of the computing ability as shown in FIG. 6, for example.

The inter-vehicle distance calculation module 182 calculates the inter-vehicle distance based on the mapped vehicle 10a based on the mapped geographic position. The inter-vehicle distance calculation module 182 calculates the inter-vehicle distance based on the mapped vehicle 10a using the distance between the geopens A method of estimating the inter-vehicle distance is applied. In this case, when the geofence is previously set for the vehicle 10a, the previous geofence is used. When the geofance is set for the first-time car 10a, the initial geofence having the radius of the reference value is used.

For example, the inter-vehicle distance between the vehicle 10a and the preceding vehicle 20a is the shortest distance between the boundary of the geofance 10-1A of the vehicle 10a and the boundary of the geofence 20-1A of the preceding vehicle 20a (D1). As another example, the inter-vehicle distance between the vehicle 10a and the preceding vehicle 20b is the shortest distance between the boundary of the geofence 10-1A of the vehicle 10a and the boundary of the geofence 20-1B of the preceding vehicle 20b D2).

The geofence changing module 183 receives the shortest distance between the geofences as the inter-vehicle distance calculated by the inter-vehicle distance calculating module 182.

The geofence change module 183 then uses the azimuth sensor information detected by the geomagnetic sensor of the mobile terminal 100A of the vehicle 10a to limit an object for vehicle-to-vehicle communication. The left limit azimuth La and the right limit azimuth Ra of the vehicle 10a are set on the basis of the azimuth of the vehicle 10a in Fig. ), And the area outside the two threshold azimuth La (Ra) sets the communication exclusion zone S2. In this case, there may be a rear vehicle and left and right vehicles in the vicinity of the vehicle 10a. If traffic information from the nearby vehicles is provided, the amount of information calculation may be greatly increased.

The geofence change module 183 also calculates the vehicle speed V in accordance with the vehicle speed information detected by the acceleration sensor of the mobile terminal 100A of the vehicle 10a and transmits the GPS signal received from the mobile terminal 100A And calculates the travel direction (P) using the corresponding position data.

Vehicle distance between the subject vehicle 10a and the vehicle existing in the communication selection area S1 set on the basis of the subject vehicle 10a and calculates the vehicle speed V and the running direction P The geofence change module 433 sets a proper geofence radius for the vehicle 10a. The set geofence information is stored in the geofence information storage unit 184.

For example, as shown in FIG. 7A, if the vehicle-to-vehicle distance between the vehicle 10a and the preceding vehicle 20 is far away from the communication selection area S1, the geofence 10-11 having a large radius is set. Vehicle communication for selectively providing traffic information from the preceding vehicle 20a such that the geofence 10-11 having a larger radius crosses the geofence 20-11 of the preceding vehicle 20a can do. As another example, if the vehicle-present distance between the vehicle 10a and the preceding vehicle 20b is short and close to the communication selection area S1 as shown in FIG. 7B, the geofence 10-12 with a small radius is set, Vehicle communication for selectively providing traffic information from the preceding vehicle 20b such that the geofence 10-12 with a narrower radius is crossed with the geofence 20-12 of the preceding vehicle 20b Can be performed.

The base station server 400 that communicates with the user mobile terminals 100 and 200 that have boarded the vehicle via the base station 300 may set the geofence for each vehicle or may set the geofence for each user, A method of communicating between vehicles by setting a geofence of the corresponding vehicle in a vehicle control system mounted on the vehicle has been described below .

9, an intervehicular communication system according to another embodiment of the present invention includes a vehicle control system 10-T mounted on a vehicle, a mobile terminal 100 of a user aboard the vehicle, and a base station 300 And a base station server 400 capable of communicating with the base station.

The vehicle control system 10-T includes a vehicle control unit 11, a communication module 12, an ADAS sensor module 13, a travel control module 14, a vehicle drive module 15, and a geofence setting unit 16. [ .

The vehicle control system 10-T can communicate with the base station server 400 and the user's mobile terminal 100 via the communication module 12 and the vehicle control unit 11 can communicate with the sensors of the ADAS sensor module 13 And a function of controlling the vehicle drive module 15 by recognizing the risk of collision with a forward vehicle or a pedestrian using the vehicle. The vehicle control unit 11 can transmit and receive signals to and from the travel control module 14 that controls the autonomous travel operation based on the collected information using the sensors of the ADAS sensor module 13. [

Further, the vehicle control system 10-T can smoothly perform inter-vehicle communication by setting the geofences between the self-vehicle and the surrounding vehicle through the geofence setting unit 16. [

The geofence setting unit 16 includes a vehicle position mapping module 16-1, an inter-vehicle distance calculating module 16-2, a geofence changing module 16-3, and a geofence information storing unit 16-4 can do.

The vehicle position mapping module 16-1 may communicate with the base station server 400 to receive position data of other vehicles and map the geographical position of each vehicle. 20a, 20b, 20c, 20d, and 20e of the computing ability as shown in FIG. 6, for example.

The inter-vehicle distance calculation module 16-2 calculates the inter-vehicle distance from the preceding vehicle based on the mapped vehicle 10a based on the mapped geographical position. The inter-vehicle distance calculation module 16-2 calculates the distance between the geopens A method of estimating the inter-vehicle distance is applied. In this case, when the geofence is previously set for the vehicle 10a, the previous geofence is used. When the geofance is set for the first-time car 10a, the initial geofence having the radius of the reference value is used.

For example, the inter-vehicle distance between the vehicle 10a and the preceding vehicle 20a is the shortest distance between the boundary of the geofance 10-1A of the vehicle 10a and the boundary of the geofence 20-1A of the preceding vehicle 20a (D1). As another example, the inter-vehicle distance between the vehicle 10a and the preceding vehicle 20b is the shortest distance between the boundary of the geofence 10-1A of the vehicle 10a and the boundary of the geofence 20-1B of the preceding vehicle 20b D2).

The geofence changing module 16-3 is the inter-vehicle distance calculated by the inter-vehicle distance calculating module 16-2, and is provided with the shortest distance between the geofences.

The geofence change module 16-3 then uses the azimuth sensor information of the mobile terminal 100 of the vehicle 10a to limit the object for vehicle-to-vehicle communication. The left limit azimuth La and the right limit azimuth Ra of the vehicle 10a are set on the basis of the azimuth of the vehicle 10a in Fig. ), And the area outside the two threshold azimuth La (Ra) sets the communication exclusion zone S2. In this case, there may be a rear vehicle and left and right vehicles in the vicinity of the vehicle 10a. If traffic information from the nearby vehicles is provided, the amount of information calculation may be greatly increased.

The geofence change module 16-3 calculates the vehicle speed V in accordance with the vehicle speed information detected by the acceleration sensor of the mobile terminal 100 of the vehicle 10a, The travel direction P is calculated using the position data corresponding to the signal.

Vehicle distance between the subject vehicle 10a and the vehicle existing in the communication selection area S1 set on the basis of the subject vehicle 10a and calculates the vehicle speed V and the running direction P The geofence change module 16-3 sets a proper geofence radius to the vehicle 10a. The set geofence information is stored in the geofence information storage unit 16-4.

For example, as shown in FIG. 7A, if the vehicle-to-vehicle distance between the vehicle 10a and the preceding vehicle 20 is far away from the communication selection area S1, the geofence 10-11 having a large radius is set. Vehicle communication for selectively providing traffic information from the preceding vehicle 20a such that the geofence 10-11 having a larger radius crosses the geofence 20-11 of the preceding vehicle 20a can do. As another example, if the vehicle-present distance between the vehicle 10a and the preceding vehicle 20b is short and close to the communication selection area S1 as shown in FIG. 7B, the geofence 10-12 with a small radius is set, Vehicle communication for selectively providing traffic information from the preceding vehicle 20b such that the geofence 10-12 with a narrower radius is crossed with the geofence 20-12 of the preceding vehicle 20b Can be performed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And falls within the scope of the present invention.

10, 20: vehicle 100, 100A, 200: mobile terminal
300: base station 400: base station server

Claims (3)

A base station server;
A vehicle communicating with the base station server through a base station and having a wireless communication-based vehicle communication function;
A mobile terminal of a user aboard the vehicle; And
And a geofence setting unit configured to receive the position data of the vehicle collected from the vehicles through the base station, the bearing data of the traveling vehicle, and the acceleration data to set the geofence in the corresponding vehicle,
Wherein the geofence setting unit comprises:
A vehicle position mapping module for mapping the geographical position of the vehicle based on the positional data of each vehicle; an inter-vehicle distance calculating unit for calculating an inter-vehicle distance between the vehicle and the other vehicle based on the geographical position mapped by the vehicle position mapping module; And a preceding vehicle existing in a communication selection area for restricting inter-vehicle communication set in accordance with the collected vehicle orientation data by using the azimuth sensor information detected by the geomagnetism sensor of the user mobile terminal mounted on the vehicle A geofence change module for setting the radius of the geofence of the vehicle of the vehicle by using the inter-vehicle distance calculated by the inter-vehicle distance calculation module and the vehicle speed and traveling direction of the vehicle, and a geofence change module for setting the geofence information Vehicle communication system for supporting a connected car environment. The method according to claim 1,
Wherein the geofence setting unit is provided in at least one of the base station server, the mobile terminal, and a vehicle control system mounted on the vehicle. The method according to claim 1,
Wherein the inter-vehicle distance calculated by the inter-vehicle distance calculation module is determined as a shortest distance between the geofence boundary of the vehicle and the geofence boundary of the preceding vehicle.

Images