KR20130056732A - Method and apparatus for communicating between vehicles - Google Patents

Method and apparatus for communicating between vehicles Download PDF

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Publication number
KR20130056732A
KR20130056732A KR1020110122479A KR20110122479A KR20130056732A KR 20130056732 A KR20130056732 A KR 20130056732A KR 1020110122479 A KR1020110122479 A KR 1020110122479A KR 20110122479 A KR20110122479 A KR 20110122479A KR 20130056732 A KR20130056732 A KR 20130056732A
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KR
South Korea
Prior art keywords
vehicle
communication device
information
message
lane
Prior art date
Application number
KR1020110122479A
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Korean (ko)
Inventor
류재홍
최병철
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한국전자통신연구원
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Priority to KR1020110122479A priority Critical patent/KR20130056732A/en
Publication of KR20130056732A publication Critical patent/KR20130056732A/en

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0965—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Traffic Control Systems (AREA)

Abstract

On the road on which the vehicles travel, the communication device installed in the first vehicle traveling the first lane determines whether a traffic jam occurs in the first lane. When a traffic jam occurs, the communication device generates a congestion occurrence message including location information of the first vehicle, and transmits the generated message to a communication device of another second vehicle located in the first lane. At this time, the communication device selects one channel among the plurality of channels according to the direction in which the first vehicle travels and transmits a message through the selected channel.

Description

Method and apparatus for communicating between vehicles

The present invention relates to an inter-vehicle communication method, and more particularly, to a method and apparatus for performing inter-vehicle communication for collecting traffic information in an automobile network.

Recently, interest in traffic information has increased, and a lot of related services have been provided. However, the cost of collecting and disseminating traffic information is expensive. For example, while collecting information from loop coils, surveillance cameras, and traffic information sources, it is very expensive to recruit taxi drivers and general information sources and operate them as traffic information sources. It is taking.

In addition, a mobile communication network is used to spread the collected information to the general user. Specifically, the control center transmits the information to the control center using the backbone network, and the control center collects and processes relevant information and transmits the information to a navigation terminal equipped with a TPEG (Transport Protocol Experts Group) using digital multimedia broadcasting (DMB). In this case, since the user who receives the information has to bear the amount of the information provided through the mobile communication network, it is difficult to activate the service.

In addition, in order to collect and provide traffic information, many infrastructure facilities as described above have to be invested, and traffic information in places where infrastructure facilities are not installed cannot be obtained.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method and apparatus for enabling communication between vehicles without using infrastructure or a mobile communication network.

Another object of the present invention is to provide a method and apparatus for collecting and propagating traffic information through inter-vehicle communication without using infrastructure or a mobile communication network.

According to an aspect of the present invention, there is provided an inter-vehicle communication method comprising: determining, by a communication device installed in a first vehicle driving a first lane, whether a traffic jam occurs in the first lane; Generating, by the communication device, a congestion occurrence message including location information about the first vehicle when a traffic jam occurs; The communication device selecting one channel among a plurality of channels according to a direction in which the first vehicle travels; And transmitting, by the communication device, to the communication device of another second vehicle located in the first lane through the selected channel.

According to an embodiment of the present invention, since a message can be transmitted and received between vehicles using a communication device such as a terminal having a navigation function installed in the vehicle, it is possible to reduce the cost incurred due to the transmission and reception of messages through the existing mobile communication network. Can be. In particular, the cost of installing and maintaining equipment for collecting traffic information between vehicles can be prevented.

In addition, according to an embodiment of the present invention, regardless of the presence or absence of equipment for collecting information, the information is collected through a communication device installed in the vehicle, it is possible to easily collect traffic information generated on all the roads on which the vehicle travels.

In addition, by transmitting and receiving information through different channels according to the traveling direction of the vehicle, it is possible to prevent information loss due to channel collision.

1 is a diagram illustrating a structure of a communication apparatus according to an embodiment of the present invention.
2 is a diagram illustrating a network environment in which a communication device according to an embodiment of the present invention is used.
3 and 4 are flowcharts illustrating an inter-vehicle communication method according to an exemplary embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

Embodiments of the present invention will now be described with reference to the accompanying drawings.

1 is a diagram illustrating a structure of a communication apparatus according to an embodiment of the present invention.

As shown in FIG. 1, the communication device 1 according to an embodiment of the present invention may be installed in a vehicle and communicate with a communication device installed in another vehicle. To this end, the communication device 1 includes a GPS receiver 11, a location information acquisition unit 12, a communication unit 13, a speed measurement unit 14, and an information transmission unit 15.

The GPS receiver 11 receives a GPS signal transmitted to a satellite (not shown) according to a global positioning system (GPS) method, and the location information acquisition unit 12 acquires current location information based on the received GPS signal. do. Acquiring the location information from the GPS signal is a well-known technique, and thus a detailed description thereof will be omitted.

The communication unit 13 communicates with a communication device installed in another vehicle, and performs wireless communication with a communication device located within a set distance to transmit and receive information. In this case, information is transmitted and received with a communication device installed in another vehicle according to a short range wireless communication method.

The speed measuring unit 14 measures the speed of the vehicle on which the communication device 1 is mounted. The method of measuring the speed of the vehicle is a known technique, and various known techniques may be applied here.

The information transmitting unit 15 receives a message transmitted from the communication device of the other vehicle through the communication unit 13 and transmits the received message to the communication device of the other vehicle through the communication unit 13, or transmits location information of its own vehicle. Information transmission for transmitting the included message to the communication device of another vehicle through the communication unit 13 is performed. In addition, the information delivery unit 15 includes the location information of the charrang in the received message and delivers it. In addition, the information transfer unit 15 performs the above information transfer process when the speed of the current vehicle measured by the speed measurement unit 14 is slower than the set speed.

In particular, the information transmitting unit 15 according to the embodiment of the present invention transmits and receives information with other communication devices through different channels through the communication unit 13. Specifically, information is transmitted and received with another communication device through one of a first channel, a second channel, and a third channel. For example, when the communication device 1 is installed in a vehicle moving in the first direction, information is transmitted and received through the first channel, and the communication device 1 is installed in the vehicle moving in the second direction. In this case, information is transmitted and received through the second channel. In addition, when information is to be transmitted to the communication device of the vehicle located in the opposite lane corresponding to the direction in which the vehicle in which the communication device 1 is installed travels, the information is transmitted and received through the third channel. Here, the first direction represents, for example, the north and east directions, and the second direction represents, for example, the south and west directions, but is not limited thereto.

Here, the information transmitting unit 15 generates and transmits a message according to whether the vehicle on which the communication device 1 is mounted is the first vehicle or the last vehicle of the congestion section, and the communication device 1 receives the received message. Message delivery may be performed according to different weights depending on whether the device corresponds to the end of the propagation range. This will be described in more detail below.

In addition, the communication device 1 may further include an information display unit (not shown) for displaying information included in the received message, and the communication device 1 may be, for example, a navigation terminal of a vehicle.

2 is a diagram illustrating a network environment in which a communication device according to an embodiment of the present invention is used.

The communication device 1 according to the embodiment of the present invention is installed in each vehicle in a road environment as illustrated in FIG. 2. In this state, the communication devices installed in each vehicle communicate with each other as shown in FIG. 2 according to a short range wireless communication method. For example, the communication device communicates with the communication device of the vehicle in front of or behind the vehicle in the same traveling direction as the vehicle in which it is mounted, and also with the communication device of the vehicle in the opposite direction to the vehicle in which it is mounted.

In particular, when a traffic jam occurs because the speed of the vehicle becomes slower than the set speed, the communication device of the first vehicle that is at the top of the traveling direction transmits a congestion occurrence message including location information to the communication device of the vehicle located behind the vehicle. The communication device receiving the generation message transfers the received message to the communication device of the vehicle behind. Through this transmission process, the communication device of the last vehicle located at the end of the traffic congestion section receives the congestion generation message transmitted from the communication devices of the vehicles located in front, and from the traffic congestion message to the traffic congestion section. Obtain interval information for Here, the communication device of the last vehicle may acquire information on the congestion section based on the location information of the first vehicle and the location information of the first vehicle included in the received congestion occurrence message. The communication device of the final vehicle transmits the final congestion occurrence message including the congestion section information acquired to the communication device of the vehicle in the direction opposite to the traveling direction, that is, the communication device of the vehicle in the other lane. The communication device of the other lane vehicle delivers the received last generated message to the communication device of the vehicle entering the corresponding traffic section.

When transmitting and receiving a message including such information, communication devices of vehicles located within a predetermined distance according to short-range wireless communication should be used. When there are many vehicles within a wireless communication possible radius, channel collision occurs and data transmission cannot be performed. Accordingly, in the embodiment of the present invention, the communication device of the vehicle traveling in the first direction (for example, north and east) transmits and receives a message using the first channel, and the third direction (for example, south and west). The communication device of the vehicle which proceeds to uses the second channel. The communication device transmits and receives a message through a third channel with a communication device of a vehicle located in the other lane. Where channel represents a frequency range for wireless communication.

In such an embodiment of the present invention, the communication device of the other vehicle except the communication device of the first vehicle and the communication device of the last vehicle in the congestion period, the message of the congestion generated from the communication device of the preceding vehicle to the communication device of the later vehicle. In this case, the location information of the vehicle mounted on the vehicle may be included in the congestion occurrence message.

Next, an on-vehicle communication method according to an embodiment of the present invention will be described based on a communication device having such a structure.

3 and 4 are flowcharts illustrating an inter-vehicle communication method according to an exemplary embodiment of the present invention.

Here, a case in which a traffic jam occurs in the environment as illustrated in FIG. 2 will be described as an example.

In a state in which a predetermined vehicle is traveling in a road environment as shown in FIG. 2, the communication device 1 of the vehicle measures the speed of the current vehicle as shown in FIG. 3, and compares the measured speed of the vehicle with a set speed. (S100, S110).

If the measured current vehicle speed is slower than the set speed, it is determined that a state in which traffic information is to be transmitted, for example, a traffic jam has occurred. In this case, it may be determined that a traffic jam occurs when the speed of the vehicle measured is lower than the set speed for the set time.

When it is determined that the traffic information needs to be transmitted, the communication device 1 waits to receive a message from the communication device of the vehicle located ahead of the vehicle in the direction of travel (S120).

When the message is not received such that the set time elapses in such a standby state, the communication device 1 determines that the vehicle on which it is mounted is the first vehicle located at the first of the congestion section (S130 and S140).

If it is determined that the vehicle is the first vehicle, the communication device 1 obtains location information of the vehicle (S150). The location information of the vehicle is acquired based on the GPS signal received through the GPS receiver 11. The communication device 1 then transmits a congestion occurrence message including the acquired location information to the communication device of the vehicle located behind. In this case, the driving direction of the vehicle of the communication device 1 is checked (S160), and a message is transmitted through a channel corresponding to the confirmed driving direction (S170). For example, in the first direction, the congestion generation message is transmitted to the communication device of a later vehicle through the first channel, and in the second direction, the congestion generation message is transmitted through the second channel. To send.

Meanwhile, in the above step S130, when a message is received from another communication device, as shown in FIG. 6, the communication device 1 checks whether the received message is received through the third channel. That is, it is determined whether the received message is received from the communication device of the vehicle traveling in the lane in a direction opposite to the direction in which the vehicle is traveling (S180).

If the received message is not received through the third channel, the communication device 1 determines whether the vehicle on which the vehicle is mounted is the last vehicle in the congestion section (S190). For example, the communication device 1 determines that the vehicle is the last vehicle in the congestion section when no information request message is transmitted from another communication device.

As a result of the determination, when the vehicle is not the last vehicle in the congestion section, the communication device 1 determines whether the communication device 1 is the last communication device in the propagation range of the received message (S200). For example, if the set strength is compared with the set strength of the received message, and it is smaller than the set strength as a result of the comparison, it is determined that the terminal is the last communication device located in a range capable of propagating the received message.

The communication device 1 assigns the first weight to the received message if it is the last communication device in the propagation range of the received message (S210), and if not the last communication device, assigns the second weight to the received message. It is given (S220). Here, the first weight has a higher value than the second weight, and this weight indicates the processing importance for the received message. Therefore, the first weighted message is processed faster than the second weighted message and transmitted to another communication device (S230). Of course, even in this case, the direction of the vehicle of the communication device 1 is checked, and the received message is transmitted to another communication device through a channel corresponding to the confirmed direction of travel.

Meanwhile, in step S18, when the vehicle on which the vehicle is mounted is the last vehicle of the congestion section, the communication device 1 obtains location information of the vehicle (S240). Then, based on the acquired position information of the vehicle and the position information of the first vehicle included in the received congestion occurrence message, information on the congestion section in which the traffic jam occurs is obtained. That is, based on the position of the first vehicle and the position of the last final vehicle to obtain the information of the traffic jam section (S250).

Then, a message including information on the congestion section is generated, and the generated message is transmitted to a communication device of a vehicle traveling in a direction opposite to that of the vehicle through the third channel, that is, the vehicle in the opposite lane ( S260).

On the other hand, in the above step (S180), when the received message is received through the third channel, the communication device 1 travels in a lane in which the received message is in a direction opposite to the direction in which the vehicle is traveling. The message is received from the communication device of the vehicle, and it is determined that the message includes information on the congestion section of the lane in the opposite direction (S270).

In this case, the communication device 1 transmits the message received through the third channel to the communication device of the vehicle traveling in the lane opposite to the driving vehicle of the vehicle through the third channel (S280). That is, the mobile station transmits the received message to the communication device of the vehicle entering the congestion section while traveling in the lane where the congestion section occurs. For example, if a traffic jam occurs in the first lane, the message sent from the communication device of the last vehicle in the congestion section in the first lane is in the second lane in the opposite direction to the first lane through the third channel. Received by the communication device. The communication device in the second lane transmits the received message to the communication device of the vehicle entering the congestion section of the first lane through the third channel. The message is transmitted while the vehicle equipped with the communication device in the second lane moves, so that a message including information on the traffic jam is transmitted to the communication device of the vehicle that substantially enters the traffic jam of the first lane. Therefore, the driver of the vehicle entering the congestion section easily acquires information on the congestion section of the corresponding lane in advance.

According to such an embodiment of the present invention, traffic information can be easily collected through a communication device installed in a vehicle traveling on a road without installing separate equipment for collecting information on the road, and traffic collection and sharing between vehicles can be easily performed. Is done.

The embodiments of the present invention are not limited to the above-described apparatuses and / or methods, but may be implemented through a program for realizing functions corresponding to the configuration of the embodiment of the present invention, a recording medium on which the program is recorded And such an embodiment can be easily implemented by those skilled in the art from the description of the embodiments described above.

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, It belongs to the scope of right.

Claims (1)

Determining, by the communication device installed in the first vehicle traveling in the first lane, whether a traffic jam occurs in the first lane; And
Generating, by the communication device, a congestion occurrence message including location information about the first vehicle when a traffic jam occurs;
The communication device selecting one channel among a plurality of channels according to a direction in which the first vehicle travels; And
Transmitting, by the communication device, to the communication device of another second vehicle located in the first lane through the selected channel.
Including, the vehicle-to-vehicle communication method.








KR1020110122479A 2011-11-22 2011-11-22 Method and apparatus for communicating between vehicles KR20130056732A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9159231B2 (en) 2013-12-17 2015-10-13 Hyundai Motor Company Method for transmitting traffic information using vehicle to vehicle communication
US9858811B2 (en) 2014-10-20 2018-01-02 Empire Technology Development Llc Vehicle traffic management
KR20180043336A (en) * 2015-09-17 2018-04-27 폭스바겐 악티엔 게젤샤프트 Apparatus, method and computer program product for generating useful information regarding termination of traffic congestion through a vehicle-to-vehicle interface
KR20180053385A (en) * 2015-09-17 2018-05-21 폭스바겐 악티엔 게젤샤프트 Apparatus, method and computer program for providing traffic congestion information via a vehicle-to-vehicle interface
KR102227609B1 (en) * 2020-10-29 2021-03-15 곽종현 Method for processing communication between apparatus, system for performing the same, communication processing apparatus and vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9159231B2 (en) 2013-12-17 2015-10-13 Hyundai Motor Company Method for transmitting traffic information using vehicle to vehicle communication
US9858811B2 (en) 2014-10-20 2018-01-02 Empire Technology Development Llc Vehicle traffic management
KR20180043336A (en) * 2015-09-17 2018-04-27 폭스바겐 악티엔 게젤샤프트 Apparatus, method and computer program product for generating useful information regarding termination of traffic congestion through a vehicle-to-vehicle interface
KR20180053385A (en) * 2015-09-17 2018-05-21 폭스바겐 악티엔 게젤샤프트 Apparatus, method and computer program for providing traffic congestion information via a vehicle-to-vehicle interface
KR102227609B1 (en) * 2020-10-29 2021-03-15 곽종현 Method for processing communication between apparatus, system for performing the same, communication processing apparatus and vehicle

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