KR100775142B1 - Method and Apparatus for guiding and traffic information offering in intelligent transportation system - Google Patents

Abstract

The present invention relates to a service provided by an intelligent transportation network system, and in the intelligent transportation network system according to the present invention, a method for providing geographic information and traffic information comprises the steps of: transmitting a geographic information request message to a roadside base station in a vehicle-mounted device; Transmitting geographic information request message received from the roadside base station to a local server, and preparing geographic information according to destination information included in the geographic information request message at the local server;

Dividing geographic information according to a communication area of a roadside base station included in a path from the local server to the destination; Transmitting the divided geographic information to each roadside base station; And transmitting the geographic information previously transmitted from the roadside base station located in the traveling direction of the vehicle to the onboard device.

According to the present invention, it is possible to receive traffic information and geographic information at the same time by using an intelligent traffic network system, and the traffic information through real-time graphic information that the method of receiving traffic information through a mobile communication terminal is limited to text messages. It is expected that the driver will be provided with convenient traffic information.

Description

Method and Apparatus for Providing Geographic Information and Traffic Information in Intelligent Transport Network System {Method and Apparatus for guiding and traffic information offering in intelligent transportation system}

1 is a block diagram showing the configuration of a navigator for providing conventional geographic information.

Figure 2 is a block diagram showing the configuration of a conventional mobile communication system for providing traffic information.

Figure 3 is a block diagram showing the system configuration of the intelligent traffic network system according to an embodiment of the present invention.

4 is a flowchart illustrating an operation procedure of a method for providing geographic information and traffic information in an intelligent traffic network system according to an embodiment of the present invention.

<Brief description of the main parts of the drawings>

11 input unit 12 media

13: media loading unit 14: memory

15 GPS 16 data merge unit

17: display 18: central processing unit

21: mobile communication terminal 22: base station

23: control station 24: information provision server                 

100: vehicle mounting apparatus 200: roadside base station

300: local server 400: traffic information providing server

The present invention relates to a service provided by an intelligent transportation system (hereinafter, referred to as ITS), in particular, geographic information and traffic information in an intelligent transportation network system to provide traffic information simultaneously with real-time graphical geographic information to a vehicle-mounted device. It relates to a method and an apparatus.

ITS is an OBU (on board unit) mounted on a vehicle using a dedicated short range communication (DSRC) system and a roadside unit (RSU) installed around a road. It provides a variety of services to provide a living information and weather information required by the vehicle-mounted device using wireless communication between the two, and to allow the driver to drive more conveniently by transmitting and receiving traffic information according to the road conditions.

In addition, the vehicle driver has to be equipped with an expensive navigator equipment in order to receive the geographic information, and used a method of receiving a text service using a mobile communication terminal to provide traffic information.

1 is a block diagram showing the configuration of a navigator for providing conventional geographic information.

Referring to FIG. 1, an input unit 11 for inputting destination information and current location information, etc., in order for a driver to request geographic information, and media in which geographic information is stored according to the driver's information request inputted to the input unit 11 ( A media loading unit 13 for inserting the geographic information of the media 12, a memory 14 for temporarily storing the geographic information loaded from the media loading unit 13, and the vehicle Global positioning system (GPS) 15 for tracking the current position as it moves, a data merging unit for synthesizing the location information measured by the GPS 15 and the geographic information of the memory 14. (16), a display unit (17) for displaying the geographic information and location information synthesized by the data merging unit (16) for the driver to view, and a central processing unit (18) for controlling the entire navigator. do. In addition, the media 12 refers to a medium capable of recording information such as a compact disk (CD) or a magnetic tape.

In the operation of the navigator configured as described above, when the driver first inputs the current location and the destination information through the input unit 11 and requests the geographic information, the central processing unit 18 performs the geography corresponding to the path to the current location and the destination. Information is loaded from the media 12 using the media loading unit 13 and temporarily stored in the memory 14.

In addition, as the vehicle is driven, the GPS 15 obtains current location information, and the data merging unit 16 merges the current location information with the geographic information stored in the memory 14 to map the current location information to the map information of the currently located area. The current position is displayed and transmitted to the display unit 17 so that the driver can know.                         

The driver may search for a route to a destination based on the map information and the current location information displayed on the display unit 17, or may operate to designate a direction in the navigator.

However, since the navigator finds only the designated route to the destination and informs the direction, even if the road is congested or the road is controlled by an accident or construction, the navigator may not have to know in advance and may have to go back or go back.

Therefore, the driver wants to be provided with traffic information from time to time, and may be provided with traffic information by using a text message function of the mobile communication terminal.

2 is a flowchart illustrating a configuration of a mobile communication system for providing traffic information according to the related art.

2, a mobile communication terminal 21 for text message transmission and reception, a base station 22 for wireless communication with the mobile communication terminal 21, and a mobile communication terminal 21 connected with the base station 22. A management station 23 for processing the information request or call request signal from the &lt; RTI ID = 0.0 &gt;

In addition, the management station 23 is connected to the external information providing server 24 through the Internet network.

In the method of receiving traffic information in the mobile communication system as described above, when the driver requests traffic information through the text service menu of the mobile communication terminal 21, the traffic information request message is transmitted from the management station 23 through the base station 22. And collects the traffic information requested by the driver in the information providing server 24 connected through the Internet, and provides the traffic information through the base station 22 to the mobile communication terminal 21 through a text message.

However, it is difficult to receive geographic information and traffic information at the same time as the conventional method, and in the case of geographic information, it is practically impossible to receive geographic information without media containing geographic information. In case of leaving the communication area of the mobile communication terminal with the limitation of providing information through a limited text message, there is a problem that the service cannot be provided.

In order to solve the above problems, the present invention enables the driver to transmit the desired traffic information and geographic information in real time graphic information from the roadside base station of the intelligent transportation network system to the vehicle onboard device so that the driver can always use the vehicle onboard vehicle. The purpose of the present invention is to provide a method and apparatus for providing geographic information and traffic information in an intelligent transportation network system that can receive a variety of information and traffic information.

Geographic information and traffic information providing method in an intelligent traffic network system according to the present invention,

Transmitting a geographic information request message to the roadside base station in the on-vehicle device;

Transmitting geographic information request message received from the roadside base station to a local server, and preparing geographic information according to destination information included in the geographic information request message at the local server;

Dividing geographic information according to a communication area of a roadside base station included in a path from the local server to the destination;

Transmitting the divided geographic information to each roadside base station;

And transmitting the geographic information previously transmitted from the roadside base station located in the traveling direction of the vehicle to the onboard device.

Preferably, when the geographic information request message does not include destination information of the on-vehicle device,

Determining, by the local server, the location of the roadside base station currently passing by and the roadside base station passed by the vehicle mounting apparatus;

Estimating the direction of travel of the vehicle using the identified positions of each roadside base station;

And transmitting in real time geographic information corresponding to the communication area of the roadside base station located in the predicted moving direction to the corresponding roadside base station.

Preferably, when the vehicle-mounted device transmits a traffic information provision request message in a geographic information provision request message,

And displaying and transmitting the traffic information in the geographic information provided by the roadside base station.                     

Referring to the accompanying drawings, a method for providing geographic information and traffic information in an intelligent traffic network system according to the present invention configured as described above is as follows.

3 is a block diagram showing the configuration of an intelligent traffic network system according to an embodiment of the present invention.

Referring to FIG. 3, a vehicle mounting apparatus 100 mounted on a vehicle and providing geographic information and traffic information to a vehicle driver through video or audio, and transmitting the driver's information request to an intelligent traffic network system, is installed around a road. The request message from the vehicle mounting apparatus 100 through the roadside base station 200 connected to the roadside base station 200 and the roadside base station 200 for the DSRC wireless communication with the vehicle mounting apparatus 100. It comprises a local server 300 for receiving and transmitting information, and a traffic information server 400 for providing traffic information in connection with the local server 300 and a communication network such as a public telephone network or the Internet network.

In the intelligent transportation network system configured as described above, when the vehicle-mounted device 100 enters the communication area of the roadside base station 200, the traffic information currently owned by the vehicle-mounted device 100 is transmitted to pass through the roadside base station 200. The traffic information transmitted to the server 300, collected by the local server 300, and also traffic information from the traffic information server 400 is transmitted from all the roadside base station 200 connected to the local server 300 After collecting and analyzing the traffic information, the traffic information is transmitted to the roadside base station 200 of the corresponding area according to the traffic information, respectively, so that the traffic information can be provided by the roadside base station 200 from the vehicle mounting apparatus 100. It is a system.                     

4 is a flowchart illustrating an operation procedure of a method for providing geographic information and traffic information in an intelligent traffic network system according to an exemplary embodiment of the present invention.

A method of receiving geographic information and traffic information according to the present invention will be described with reference to FIGS. 3 and 4 as follows.

3 and 4, when the driver transmits a message requesting geographic information and traffic information to the roadside base station 200 through the vehicle mounting apparatus 100 (S101), the roadside base station 200 receives the received message. The information request message is transmitted to the local server 300 (S102).

The local server 300 searches for whether there is destination information of the vehicle mounting apparatus 100 in the received information request message (S103), and if there is destination information, prepares geographic information up to the destination (S104). At this time, when the driver selects a destination, the destination information includes the selected destination information in the information request message when the vehicle mounting apparatus 100 transmits the information request message.

When the geographic information to the destination is prepared as described above, the locations of the roadside base stations 200 located on the path to the destination are determined (S105), and the geographic information corresponding to the communication area of each roadside base station 200 is divided. And transmits to the corresponding roadside base station (200) (S106). At this time, traffic information is also transmitted to the corresponding roadside base station 200.

When the vehicle equipped with the vehicle mounting apparatus 100 reaches the communication area, the roadside base station 200 transmits the geographic information and the traffic information received from the local server 300 to the vehicle mounting apparatus 100 (S108). ).

The on-vehicle device 100 provides the geographic information and the traffic information to the driver through a display device such as a liquid crystal display in a graphic manner so that even if the driver is traveling on a transit road, the vehicle is selected and operated according to the traffic situation to the destination. It will help you do it.

Also, if the destination information is not transmitted from the vehicle-mounted device 100 as a result of the destination information search, the regional server 300 determines the location of the roadside base station 200 previously passed and the roadside base station 200 currently passing. The vehicle traveling direction is predicted by using the method (S109).

The roadside base station 200 located in the predicted vehicle travel direction is searched, and the geographic information and traffic information corresponding to each roadside base station 200 are transmitted (S110), and the roadside base station 200 is equipped with a vehicle loading apparatus. Provide geographic information and traffic information at (100).

As described above, in the intelligent traffic network system according to the present invention, the method for providing geographic information and traffic information is conventionally provided with geographic information and traffic information using a navigator and a mobile communication terminal, and the traffic information depends on a text message. It was possible to receive the information by using the intelligent traffic network system, at the same time can receive geographic information and traffic information, and in the case of traffic information, it is easy for the driver to grasp the traffic information by enabling the real-time graphical information provided. And, it is effective to receive various kinds of traffic information.

Claims (4)

Transmitting a geographic information request message to the roadside base station in the on-vehicle device; Transmitting geographic information request message received from the roadside base station to a local server, and preparing geographic information according to destination information included in the geographic information request message at the local server; Dividing geographic information according to a communication area of a roadside base station included in a path from the local server to the destination; Transmitting the divided geographic information to each roadside base station; And transmitting geographic information previously transmitted from a roadside base station located in the direction of travel of the vehicle to a vehicle-mounted device. The method of claim 1, wherein the geographic information request message does not include destination information of the on-vehicle device. Determining, by the local server, the location of the roadside base station currently passing by and the roadside base station passed by the vehicle mounting apparatus; Estimating the direction of travel of the vehicle using the identified positions of each roadside base station; And transmitting the geographic information corresponding to the communication area of the roadside base station located in the predicted direction to the corresponding roadside base station in real time. The method of claim 1 or 2, wherein the vehicle-mounted device transmits a traffic information provision request message in a geographical information provision request message. And displaying and transmitting the traffic information in the geographic information provided by the roadside base station. A roadside base station installed around a road for wireless communication with a vehicle-mounted device; A local server connected to the roadside base station for receiving a request message from the vehicle-mounted device through the roadside base station and transmitting information; And a traffic information server connected with a communication network such as a local server and a public telephone network or an internet network to provide traffic information.

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