KR20010086969A - Traffic information collection/offer system and method using dsrc - Google Patents

Abstract

PURPOSE: An apparatus for collecting/providing traffic information using a dedicated short range communication(DSRC) and a method thereof are provided to collect a travelling speed per each section of a road by receiving an ID of each vehicle, and to distribute the collected travelling speed to each vehicle again. CONSTITUTION: An on board terminal(11) is for an interface with a user, and receives a service required from the user and transmits it to a vehicle transceiver unit(12). The vehicle transceiver unit converts the information transmitted from the on board terminal into a format appropriate for a DSRC(Dedicated Short Range Communication) method, and transmits it to a RSU(Road Side Unit)(13), or receives information from the RSU. The RSU receives an ID of a vehicle from the vehicle transceiver unit and transmits it to a local traffic information server(14), and transmits the information from the local traffic information server to the vehicle transceiver unit. A central traffic information server(15) collects information from each local traffic information server and other traffic information system.

Description

Traffic information collection / provision apparatus and method using short-range dedicated communication method {TRAFFIC INFORMATION COLLECTION / OFFER SYSTEM AND METHOD USING DSRC}

The present invention provides a process for collecting traffic information and distributing the collected traffic information using a dedicated short range communication (DSRC) in an intelligent transport system (ITS). Apparatus for collecting / providing traffic information and a method thereof, and a computer-readable recording medium recording a program for realizing the method, in particular, the identification of each vehicle in a roadside communication apparatus installed on a roadside using a short-range communication method. Receives ID), calculates the driving speed for each section of the road and generates traffic information, and distributes it to each vehicle through roadside communication device to collect traffic information to provide traffic information in one system. Computer-readable recording device / providing device and method thereof and program for realizing the method It relates to a recording medium.

In general, DSRC refers to a roadside unit (RSU) and an onboard unit (OBU) of the element technology of an intelligent transport system (ITS). Two-way communication within short distance (within 100m) to establish efficient and advanced road traffic environment through automatic fare collection and road traffic safety information, and between vehicle and roadside devices used to promote traffic efficiency and cost reduction Dedicated communication. It is already installed and used in Europe, Europe and Western countries, Malaysia, Singapore, etc., and research is being actively conducted in Korea.

However, a conventional method of collecting and providing traffic information includes a system for collecting driving speeds for each section of a road by using a loop detector, a closed circuit television (CCTV), an image detector, and an ultrasonic sensor installed on a road surface. The traffic information collected through this system is dualized to provide a vehicle to be moved through a wireless communication network such as cellular, personal communication system (PCS), wireless data communication network, which is expensive to install and difficult to maintain. In addition, there was a problem in that a separate provision system was used to provide the collected traffic information.

The present invention, devised to solve the above problems, a traffic information collection / providing device for receiving the ID of each vehicle to collect the traveling speed for each section of the road and distribute it to each vehicle and its It is an object of the present invention to provide a computer-readable recording medium storing a method and a program for realizing the method.

That is, the present invention receives the ID of each vehicle in the roadside communication device installed on the roadside using the short-range dedicated communication method, and calculates the traveling speed for each section of the road using this to generate traffic information It is an object of the present invention to provide a traffic information collecting / providing device for distributing to each vehicle-mounted device through a roadside communication device and a computer-readable recording medium recording the method and a program for realizing the method.

1 is a configuration diagram of an embodiment of a traffic information collection / provision apparatus using a short-range communication method according to the present invention.

2 is a flow chart of an embodiment of a traffic information collection process of the traffic information collection / providing method using a short-range dedicated communication method according to the present invention.

Figure 3 is a flow diagram of an embodiment of a traffic information providing process of the traffic information collection / providing method using a short-range dedicated communication method according to the present invention.

* Explanation of symbols for the main parts of the drawings

110: vehicle mounting terminal 120: vehicle transceiver (OBE)

130: roadside communication device (RSE) 140: regional traffic information server

150: central traffic information server

In order to achieve the above object, the present invention provides a traffic information collection / provision apparatus using a short-range dedicated communication method in an intelligent transportation system (ITS), which is mounted on a vehicle and transmits an ID of each vehicle to a roadside communication device. Vehicle mounting apparatus for receiving traffic information from the roadside communication device; The roadside communication for receiving the ID (ID) of the vehicle through the vehicle on-board device mounted on each vehicle to transmit to the information providing means, and receives the traffic information transmitted from the information providing means to deliver to the vehicle on-board device Device; The information providing means for receiving the ID of the vehicle from the roadside communication device, calculating the speed for each section of the road, generating traffic information, and providing the generated traffic information to the roadside communication device and the information management means; And the information management means for collecting and comprehensively managing the traffic information through the information providing means and other external traffic information systems.

In addition, the present invention, in the traffic information collection / providing method using a short-range dedicated communication method applied to the intelligent transport system (ITS), receiving the ID of each vehicle from the roadside communication device to determine the time and running speed of the vehicle passed Calculating and generating and collecting traffic information; And a second step of transmitting the collected traffic information to a central traffic information server and distributing the traffic information through each roadside communication device to provide the driving speed and traffic information for each road section to the terminal. .

In addition, the present invention, the intelligent transport system (ITS) having a processor, the function of generating and collecting traffic information by receiving the ID of each vehicle from the roadside communication device to calculate the time and driving speed passed by the vehicle; And transmitting the collected traffic information to the central traffic information server, and distributing the traffic information through each roadside communication device to read the program for realizing the function of providing the driving speed and traffic information for each road section to the terminal. Provides a record medium that can be.

As described above, in the present invention, when passing through the communication possible section formed by the roadside communication device installed on the roadside, the ID (or ID) of each vehicle (or vehicle transmission / reception) transmitted from the vehicle transceiver attached to each vehicle in the roadside communication device. When receiving the ID (ID) for identifying each vehicle, such as the ID of the device, hereinafter referred to as the ID of the vehicle) and transmitting it to the local traffic information server, the local traffic information server in any two roadsides By comparing the time when the ID of the car is received in the communication device, the time required for the vehicle to travel between the two roadside communication devices is extracted, and by dividing the distance between the two roadside communication devices, the traveling speed of the section is obtained. Obtain In this way, the collected driving speeds of the sections are averaged for a certain time, and the average driving speeds of each section are collected and transmitted to the central traffic information server, and at the same time, within a certain range (for example, within 3 km) of each roadside communication device. The information is divided into average driving speed information of each section of the road and each information is transmitted to the corresponding roadside communication device. Subsequently, the roadside communication devices receive the traffic information periodically and repeatedly broadcast, thereby providing traffic information to the vehicles passing through the communication section.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an embodiment of a traffic information collection / provision apparatus using a short-range dedicated communication method according to the present invention.

In the drawing, "11" represents a vehicle-mounted terminal, "12" represents a vehicle transceiver, "13" represents a roadside communication device, "14" represents a local traffic information server, and "15" represents a central traffic information server.

First, the vehicle-mounted terminal 11 is responsible for the interface with the user, receives the service required by the user and transmits it to the vehicle transceiver 12 or receives information from the display and displays it on the screen.

The vehicle transceiver 12 converts the information transmitted from the vehicle-mounted terminal 11 into a format suitable for a short-range dedicated communication method and transmits it to the roadside communication device 13 or receives the information transmitted from the roadside communication device 13. do.

The roadside communication device 13 receives the ID of the vehicle from the vehicle transceiver 12 mounted in each vehicle passing through the communication possible section formed by the device, and transmits the ID of the vehicle through the high-speed wired dedicated line. (14), and also receives the information transmitted from the local traffic information server 14 and transmits it to the vehicle transceiver 12 of the vehicle passing through the communication possible section.

The local traffic information server 14 receives the ID of the vehicle transmitted from the roadside communication device 13, records the time when each vehicle passed the roadside communication device 13, and the roadside communication device for each vehicle. Calculate the travel speed between two points by dividing the distance between two roadside communication devices by this and calculating the time taken to pass through other roadside communication devices. The driving speed information obtained in this way is aggregated and processed at predetermined time intervals (for example, 5 minute intervals), and the average driving speed information of each section is transmitted to the central traffic information server 15. The driving speed of each section of the area in charge is transmitted to the corresponding roadside communication device 13.

The central traffic information server 15 collects information from each regional traffic information server 14 and other external traffic information systems to comprehensively manage the information. In addition, it provides an interface for providing traffic information using the Internet, PC (Personal Computer) communication, fax, voice guidance using a wired communication network.

2 is a flow chart of an embodiment of a traffic information collection process of the traffic information collection / providing method using a short-range dedicated communication method according to the present invention.

As shown in Figure 2, the traffic information collection process according to the present invention, first transmits the ID (ID) of the vehicle in the vehicle transceiver 12 mounted on each vehicle receives it from the roadside communication device 13 It transmits to the local traffic information server 14 (201).

Subsequently, the local traffic information server 14 records the ID of the vehicle and the reception time, calculates the difference in driving time between the two points by comparing the ID of the same vehicle with the detected time on the other roadside communication device. In step 203, the distance between the two points is divided to calculate the traveling speed for each section, and the generated traffic information is transmitted to the central traffic information server 15 (203).

In this case, the central traffic information server 15 receives traffic information transmitted from each local traffic information server and traffic information collected from an external traffic information system and comprehensively manages it (204).

3 is a flowchart illustrating a traffic information providing process in a method for collecting / providing traffic information using a short-range dedicated communication method according to the present invention.

As shown in FIG. 3, the traffic information providing process according to the present invention first updates the driving speed of each section of the road generated by the local traffic information server 14 in units of 5 minutes to be controlled by each roadside communication device. The traffic information is classified and transmitted by region (301).

Each roadside communication device receives the transmitted traffic information and periodically broadcasts it (302). Each vehicle receives the traffic information broadcast while passing through the communication enabled section formed by the roadside communication device and displays it on the electronic map of the vehicle-mounted terminal 11 (303).

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

In the present invention as described above, a system for collecting traffic information and a system for redistributing it are processed by one system, and from a driver's point of view, a vehicle transceiver is installed in a vehicle to provide traffic information and other additional information. Receiving the information in real time, it is effective to grasp the traffic situation of the current driving area, and from the perspective of collecting and managing traffic information, it is effective to collect more accurate traffic information in real time.

Claims (5)

In a traffic information collection / provision apparatus using a short-range dedicated communication method in an intelligent transportation system (ITS), A vehicle-mounted device mounted on a vehicle to transmit ID of each vehicle to a roadside communication device and to receive traffic information from the roadside communication device; The roadside communication for receiving the ID (ID) of the vehicle through the vehicle on-board device mounted on each vehicle to transmit to the information providing means, and receives the traffic information transmitted from the information providing means to deliver to the vehicle on-board device Device; The information providing means for receiving the ID of the vehicle from the roadside communication device, calculating the speed for each section of the road, generating traffic information, and providing the generated traffic information to the roadside communication device and the information management means; And The information management means for comprehensively managing traffic information through the information providing means and other external traffic information systems; Traffic information collection / providing device using a short-range dedicated communication method comprising a. In the traffic information collection / provision method using a short-range dedicated communication method applied to the intelligent transportation system (ITS), A first step of generating and collecting traffic information by receiving an ID of each vehicle from a roadside communication device, calculating a time and a traveling speed of the vehicle; And A second step of transmitting the collected traffic information to the central traffic information server in real time and distributing the traffic information through each roadside communication device to provide the driving speed and traffic information for each road section to the terminal; Traffic information collection / providing method using a short-range dedicated communication method comprising a. The method of claim 2, The first step is, Transmitting a vehicle ID mounted on each vehicle to the roadside communication device; A fourth step of transmitting an ID of each vehicle received from the roadside communication device to a local traffic information server; A fifth step of calculating a traveling speed for each section of the road by using the ID of each vehicle collected through the roadside communication device and the time when each vehicle passes the roadside communication device; And A sixth step of generating, collecting, and comprehensively managing traffic information transmitted from the local traffic information server; Traffic information collection / providing method using a short-range dedicated communication method comprising a. The method of claim 2 or 3, The second step, A seventh step of updating the traffic information generated by the local traffic information server in real time and transmitting the traffic information to the central traffic information server and at the same time distributing and transmitting traffic information corresponding to each roadside communication device; An eighth step of transmitting the traffic information received from the roadside communication device to the vehicle onboard device mounted on the vehicle passing through the communication enabled section formed by the roadside communication device; And A ninth step of transmitting the traffic information received from the vehicle-mounted device to a terminal and displaying the information on an electronic map of the terminal; Traffic information collection / providing method using a short-range dedicated communication method comprising a. In an intelligent transportation system (ITS) with a processor, A function of generating and collecting traffic information by receiving the ID of each vehicle from the roadside communication device, calculating the time and driving speed at which the vehicle passed; And Send the collected traffic information to the central traffic information server in real time, and distribute the traffic information through each roadside communication device to provide the driving speed and traffic information for each road section to the terminal A computer-readable recording medium having recorded thereon a program for realizing this.