KR100281049B1 - Service method of traffic information utilizing conventional wireless communication network - Google Patents

Abstract

An object of the present invention is to provide a traffic information service method using an existing wireless communication network that can not only provide traffic information to a user in real time, but also greatly reduce the cost of constructing an infrastructure for obtaining traffic information. Doing.

The present invention divides a predetermined area into a plurality of zones and uses the existing wireless communication network in which a plurality of terminals and one base station are installed in each zone to provide traffic information, and the user requests a service for traffic information of a specific zone. In this case, the step of identifying which area within the predetermined area is located, determining the location of each terminal in the specific area, loading the electronic map of the specific area, and then mapping the electronic map. Identifying a terminal mounted on a vehicle located on a roadway of the road, and calculating an average driving speed of the vehicle in the specific area by using the movement of the terminal mounted on the vehicle located on the roadway of the roadway And processing the traffic information on the average driving speed of the vehicle and notifying the user. It is characterized by.

Description

Traffic information service method using existing wireless communication network {Service method of traffic information utilizing conventional wireless communication network}

According to the present invention, when a terminal device wants to obtain traffic status information at a current location or a specific region using an existing wireless communication network, traffic information is obtained and provided so that traffic information can be provided in real time without building an additional infrastructure. It relates to an information service method.

Conventional traffic information service methods are known TV and radio broadcasting method using the monitoring and information source of the CCD camera, and radio beacon (beacon) using method is known.

TV and radio broadcasting methods using CCD cameras and information sources monitor traffic congestion, traffic congestion and traffic accidents at the branches through CCD cameras installed at each branch, or use traffic sources such as personal taxi drivers. After the traffic situation is obtained, it is a method of providing the traffic information through TV or radio by combining these situations in the Control Center.

In addition, the method of using a wireless beacon is a method that is being studied for introduction in recent years, a pole capable of wireless transmission and reception called a wireless beacon at regular intervals on each street, a terminal mounted in each vehicle for transmission and reception of this beacon, and at the center. It is equipped with a main control center to control the radio beacons installed at regular intervals and through the transmission and reception using the terminals mounted on each vehicle to grasp the current terminal position, direction, and speed to the main control center This is a way to find out the congestion status of each road and notify each user.

TV and radio broadcasting methods using the above-described CCD camera and information sources, traffic information can be obtained from a limited point in the case of a CCD camera, for example, a limited point on the street such as Olympic road, riverside road, highway, etc. When using the information source, traffic information can be obtained on the moving line where the information source moves, but the traffic information to be informed to the specific user in real time is informed to the random user by using the above traffic information through TV or radio broadcasting. Not only is it impossible to provide, but there are also problems such as personnel management and cost in the installation and maintenance of infrastructure such as CCD cameras, and there is a problem that it is difficult to manage personnel and obtain continuous traffic information when using the Traffic Information Service. .

In addition, the method of using the wireless beacon is not only expensive to install the infrastructure of the wireless beacon, which should be installed at regular intervals, but also to the place to be installed, and to consult with government agencies for construction, maintenance costs, and traffic information. It has various problems such as dissemination of terminals.

Therefore, the present invention was invented in view of the problems of the prior art, and it is possible to provide traffic information to the user in real time, and to reduce the cost of constructing an infrastructure for obtaining traffic information. An object of the present invention is to provide a traffic information service method using a wireless communication network.

1 is a traffic information service system used to implement the method of the present invention.

2 is a detailed block diagram of the central traffic information center of FIG.

3 is a flowchart implementing the method of the present invention.

4 is a schematic diagram of a cursor system used to identify a terminal located within a particular zone in the method of the present invention.

5 is a schematic representation of map mapping in the method of the present invention.

Explanation of symbols for main parts of the drawings

10: Central Traffic Information Center 11: Base Station

12 terminal 13 central processing unit

14: receiver 15: transmit and receive

16: speed calculation unit 17: server

18: cursor station 20: roadway on the road

21 to 23: terminal in the driveway position 24: terminal outside the driveway

In order to achieve the object of the present invention, a traffic information service method using a conventional wireless communication network divides a predetermined area into a plurality of zones and uses the existing wireless communication network in which a plurality of terminals and one base station are installed in each zone. The service method of claim 1, further comprising: when a service request for traffic information of a specific area is received from a user, identifying which area in the specific area is located, and identifying the location of each terminal in the specific area. And confirming the terminal mounted on the vehicle located on the roadway by mapping the electronic map after loading the electronic map of the specific area, and checking the terminal mounted on the vehicle located on the roadway of the road. Calculating an average driving speed of the vehicle in the specific zone by using the movement; The processing of the traffic information on the average driving speed is characterized in that it comprises the steps that the notification to the user.

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

FIG. 1 schematically illustrates a traffic information service system using an existing wireless communication network for implementing the method of the present invention, FIG. 2 illustrates the functions of the traffic information center of FIG. 1, and FIG. 3 illustrates the present invention. A flow chart for implementing the method is shown.

In the traffic information service system using the existing wireless communication network of the present invention, a predetermined area is divided into a plurality of zones (1... N), and one base station 11 and a plurality of terminals 12 for each zone. Is installed, and each base station 11 is connected to the central traffic information center 10, which controls the service of traffic information as a whole, to enable wireless communication, and the central traffic information center 10 is connected to a general telephone network. It is connected to enable communication through a user terminal or a user terminal.

As shown in FIG. 2, the central traffic information center 10 receives a signal from a central processing unit 13 made of a microcomputer in phase, and a user's general telephone network or each base station 11. A receiver 14, a transmitter 15 for sending signals to the base stations, a speed calculator 16 for calculating the average driving speed of the vehicle, etc., and a server 17 on which a traffic information database and an electronic map are constructed. ).

The central traffic information center 10 is installed at any one base station located at the center of the predetermined area or at a place such as a mobile service switching center (MSC).

The traffic information service method of the present invention using the wireless communication network of the traffic information service system having such a configuration will be described with reference to FIG. 3 showing a traffic information service flow chart. First, the communication terminal holder (or user) has a traffic situation menu selection key ( If the traffic status information is requested by pressing (install additional installation) (step S10), the central traffic information center 10 checks whether or not the location to receive traffic information service is the current location (step S11). The location is selected by checking any one of the 1 to N zones, for example, the 5 zone (S12).

Next, in step S13, the central traffic information center 10 detects the position of each terminal in the 5 zone through the base station 11 in the 5 zone, which is the selected zone, using, for example, a cursor system.

That is, this cursor system installs one Cursor Station 18 per three zones 6, 7, 8 as shown in Fig. 4, and the cursor station 18 and the 6,7 A system for identifying the position of the terminal 12 in each zone by using a time difference or a phase difference that occurs during signal transmission between each terminal 12 in the 8 zones. Is a known system under pilot service in the United Kingdom.

Subsequently, in step S14, after confirming the location of each terminal in the selected area, the electronic map of the selected area 5 is loaded into the base station or the central traffic information center of the corresponding area, and then map mapped to the selected area. Check whether the terminal is mounted on the vehicle located on the roadway of the road.

FIG. 5 shows a map mapping for confirming whether a terminal is mounted on a vehicle located on a roadway in an optional zone 5, where 20 is a roadway and 21, 22, and 23 are on a roadway. The terminal is located and moves in the vehicle driving direction, and FIG. 24 illustrates a terminal located outside the roadway. When the terminal is located on the roadway of the road and moves in the vehicle driving direction, the terminal is recognized as being mounted on the vehicle.

Subsequently, in step S15, the position of the terminal located on the roadway of the road is grasped at a predetermined time interval, and the average moving speed is calculated based on the calculated average moving speed.

The process of grasping the terminal mounted on the vehicle located on the roadway and calculating the average driving speed of the vehicle by performing the electronic map and map mapping is performed in the central traffic information center 10 in this embodiment. After the above process is performed by the base station 11 by providing the speed calculating unit 14 and the server 16 to each base station 11, the calculated average driving speed of the vehicle to the central traffic information center 10. You may be informed.

Next, in step S16, the central traffic information center 10 processes the average driving speed of the vehicle, for example, when the vehicle speed is 60 km or more, very good, when traffic is less than 20 km to 60 km, and when traffic is less than 20 km, the traffic is processed. To provide the user with other traffic information, for example, traffic accidents, road works.

According to the traffic information service method of the present invention as described above, when a user requests the service of traffic status information of a specific area including the user's current location, the user can use the existing wireless communication network through the base station in the specific area. Based on the moving speed of the terminal located on the roadway of a specific area, the average driving speed of the vehicle is calculated and processed, and the user is similar to other traffic information of the specific area such as road construction and traffic accidents. In addition to being able to receive traffic information in real time, users can receive real-time traffic information, as well as a central traffic information center consisting of transmitters, receivers, and central processing units, which are very inexpensive to install. Except for stations, the infrastructure construction that is expensive to install is existing wireless communication. Since the use of the network, such as the effects of the construction cost of the installation of the infrastructure, such as infrastructure maintenance is very cheap.

In addition, the present invention can be equally applicable to cellular phone wireless networks, PCS wireless networks, and IMT2000 wireless networks to be developed in the future, and thus, the present invention can be applied to advanced wireless networks while fully utilizing existing wireless networks.

Claims (6)

In the method of dividing a predetermined area into a plurality of zones, and using the existing wireless communication network in which a plurality of terminals and one base station is installed in each zone, traffic information service method, When the central traffic information center receives a service request for traffic information of a specific area from the user, the central traffic information center checking which area within the predetermined area is the specific area; Determining, by the central traffic information center, the location of each terminal in the specific area through a base station in the selected area; After the central traffic information center loads the electronic map of the specific area and maps the electronic map to identify a terminal mounted in a vehicle located in a roadway of a road, Determining, by the central traffic information center, the movement of the terminal mounted on the vehicle in the road at a predetermined time interval, and calculating an average driving speed of the vehicle in the specific zone based on the movement; And the central traffic information center notifying the user of the traffic information on the average driving speed of the vehicle. The method of claim 1, The existing wireless communication network is a traffic information service method, characterized in that any one of the cellular wireless network, PCS communication network or IMT 2000 wireless network. The method of claim 1, The step of determining the location of each terminal in the specific zone includes a time difference that occurs when a signal is transmitted between each terminal and one cursor station installed in adjacent 3 to 4 zones including the specific zone. Traffic information service method characterized in that to determine the location of the terminal using a) or (phase difference). The method of claim 1, The identification of the terminal mounted on the vehicle in the roadway of the road is performed by comparing the road coordinate value on the electronic map with the coordinate value of the terminal whose position is confirmed. The method of claim 1, The driving speed of the vehicle may be calculated by storing the initial position of each terminal identified at the time of map mapping, and mapping the map with the electronic map at a predetermined time interval to detect a new position of each terminal. Information service method. The method of claim 1, Traffic information service method characterized in that the identification of the terminal mounted on the vehicle on the road using the map mapping and calculating the average running speed of the vehicle to be performed by the base station of the specific area.

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