KR100788838B1 - Traffic calculation system using wireless data network and thereof method - Google Patents

Abstract

According to the present invention, in determining the traffic level of a road using a mobile communication network, the terminal detects itself entering a highway, a national road, a high speed road, a city street, etc., and then calculates a moving speed of the vehicle by calculating the time compared to the moving distance. The present invention relates to a traffic calculation system and method using a wireless data network that transmits such a road traffic speed to a server at regular time intervals.

According to the present invention, in a traffic calculation system using a wireless data network based on a mobile communication system based on traffic information collected from a mobile communication terminal having a traffic management agent program and a navigation program, identifying the current position of the mobile communication terminal. A mobile communication terminal having a traffic management agent program for detecting road entry using the road information transmitted from the traffic server and calculating a moving speed of the vehicle, and a navigation program for guiding a road to a user; And a traffic server for exchanging traffic information and traffic calculation information with the mobile communication terminal, wherein the mobile communication terminal and the traffic server exchange traffic information using a wireless data network. present.

PDSN, PCF, Traffic Server, Mobile Terminal

Description

Traffic calculation system using wireless data network and method

1 is a block diagram of a traffic calculation system using a wireless data network according to the present invention.

2 is a block diagram of a mobile communication terminal according to the present invention.

3 is a flowchart illustrating a traffic calculation process using a wireless data network according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: mobile communication terminal 110: traffic management agent program

120: navigation program 200: base station

300: base station controller 400: switchboard

500: home location register 600: packet control unit (PCF)

700: PDSN 800: Traffic Server

The present invention relates to a traffic information collection system and a method using location lookup information of a mobile terminal device. More specifically, the present invention relates to a technology capable of collecting traffic conditions on a highway in real time by extracting an optimal valid sample based on location lookup information of a mobile terminal on a highway and generating traffic information.

In general, the car navigation system receives location information from the current location of the vehicle and combines it with geographic information to provide various services such as route guidance, traffic guidance, surrounding information, and additional information. A public transportation system that combines the Global Positioning System (GPS) technology of the vehicle and the Geographic Information System (GIS), which teach the driver directions through the display screen and voice. It is already commercialized and used for smooth land transportation and operation such as ships, delivery trucks and quick service.

However, in order to receive the above service, there is a problem that can be provided only by installing an expensive telematics device for supporting wireless mobile communication, GPS technology, and Geographic Information System (GIS).

Therefore, the case registration number 10-0451896 (real-time traffic information system and its processing method) is characterized in that the traffic information is provided in real time by mounting a GPS module, a GPS device in the mobile communication terminal.

However, the present invention has a problem in that the mobile communication terminal increases in price due to the GPS device and the size of the GPS device itself is large due to the GPS device in the mobile communication terminal.

In the example registration notification 10-2004-0025302 (traffic information collection system and method using the location tracking information of the mobile terminal device), the traffic of the road is calculated from the location information server of the mobile communication terminal in the vehicle entering the road. It is characterized in that for calculating the traffic of the road. However, the present invention has a problem that the exchange is overloaded due to an increase in the data amount of the exchange by using the exchange when collecting location information. In addition, there have been problems such as location acquisition cost for the mobile terminal and difficulty in sampling the mobile terminal existing on the road, that is, which terminal is used as a sample terminal for calculating traffic on the road.

The present invention is to solve the above problems, the present invention is to detect the traffic level of the road by using a mobile communication network, the terminal detects the access to the highway, national road, high speed road, downtown street, etc. and then the moving distance It is an object of the present invention to provide a system and method for calculating traffic using a wireless data network that calculates a moving speed of a vehicle and calculates a moving speed of the vehicle and transmits the road traffic speed to a server at predetermined time intervals.

As a technical idea for achieving the above object of the present invention, the present invention is based on a traffic management agent program and a traffic calculation system using a wireless data network based on a mobile communication system based on traffic information collected from a mobile communication terminal having a navigation program. A road information storage unit for confirming the current location information of the mobile communication terminal, a road information storage unit for storing road information transmitted from the traffic server, an information comparison unit for comparing the road information with the location information, A mobile communication terminal having a traffic management agent program including a location information storage unit for storing location information and a speed measurement unit for calculating a moving speed of the vehicle using the stored location information, and a navigation program for guiding a road to a user; And a traffic server for exchanging traffic information and traffic calculation information with the mobile communication terminal, wherein the mobile communication terminal and the traffic server exchange traffic information using a wireless data network. Presented.

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the embodiment of the present invention will be described in detail.

1 is a block diagram of a traffic calculation system using a wireless data network according to the present invention.

As shown in FIG. 1, the mobile communication system includes a mobile communication terminal 1000, a base station transceiver subsystem (BTS) 200, a base station controller (BSC) 300, and a switching center (MSC). : Mobile Switching Center (400), Home Location Register (HLR) (500), Packet Data Service Node (PDSN) 700, and Packet Control Function (PCF) ( 600), traffic server 800, and the like.

In addition to these network elements, the network elements of the existing 2G and 3G mobile communication systems (Legacy System) may be additionally included. The mobile communication network of the present invention basically relates to a CDMA data communication network according to ISO4.0 or higher standard, which is one of IS-95C CDMA data communication standard standards, but is not necessarily limited thereto.

The base station 200 generally performs communication using a protocol defined in IS-95 in a wireless section together with a mobile communication terminal device, and plays a role of connecting the mobile communication terminal 100 to the base station controller 300. By doing so, the base station controller 300 performs a wired / wireless conversion function for performing wired communication.

The base station controller 300 controls the base station, controls the radio link and the wired link, and performs a hand-off function for maintaining the continuity of the call even when the mobile subscriber is mobile. In addition, it is responsible for the signal processing function for communication between the base station 200 and the switching center 400.

The switching center (MSC) 400 includes a visitor location register (VLR) and interworks with the home location register 500 to process mobile communication subscriber calls. In addition, the switching center 400 accesses the base station controller 300 to perform call setup and release functions of the mobile communication terminal, and performs various functions related to call processing and additional services.

Visitor Locator (VLR) is a database that temporarily stores subscriber information related to a mobile communication terminal while the mobile communication terminal is in an area controlled by the visitor location register (VLR). The information of the mobile communication terminal and the subscriber is taken from the home location register, temporarily stored, and mounted on the switching center 400.

In general, the switch 400 may include call processing and additional service processing of a mobile communication personal subscriber, personal communication application protocol processing, handover control between base station controllers, and a personal communication exchange (PCX) (not shown). Handover control, interworking between other mobile networks, network synchronization, self-service maintenance, visitor registration, location update, billing processing, wire channel management and allocation.

The home location register (HLR) 500, which is a circuit management server, is a database that is connected to the switching center 400 and manages various types of information of mobile subscribers, and functions to register subscriber locations in conjunction with various switching stations 400. It stores the permanent information and location information of the mobile communication terminal and subscriber, and interacts with the visitor location register (VLR) to support various functions related to call processing and additional services. In particular, it provides voice call-related mobility and service-related functions in a circuit network.

Packet control function (PCF) 600 is a device for transferring packets and managing calls between BSC and PDSN.

The packet data service node (PDSN) 700 is responsible for an interface function between two networks between a Radio Access Network (RAN) and a Packet Core Network (PCN).

The traffic server 800 stores location information of mobile communication terminal users and traffic information collected by the mobile communication terminal.

The mobile communication terminal connects to the packet controller PCF via wireless access, and then the packet controller PCF connects to the packet data network. The RAN-TO-PDSN (R-P) interface is a link between the packet controller (PCF) and the packet data service node (PDSN). Through these R-P interfaces, wireless network elements are connected to a packet data network.

2 is a schematic configuration diagram of a mobile communication terminal 100 of the present invention. The mobile communication terminal 100 includes a traffic management agent (agent) program 110, a navigation program 120, a display unit 130, a key input unit 140, a transceiver 150, and a controller 160. Consists of.

The traffic management agent program 110 includes a location information check unit 111, a speed measuring unit 112, a road information storage unit 113, an information comparison unit 114, a location information storage unit 115 do.

The location information checking unit 111 plays a role of recognizing information regarding a current location of a mobile communication terminal based on base station information of the mobile communication terminal. The speed measuring unit 112 calculates a moving speed of the vehicle using the location information stored in the location information storage unit. The road information storage unit 113 serves to store road information transmitted from the traffic server. The information comparing unit 114 serves to compare the road information transmitted from the traffic server with the location information of the location information checking unit of the mobile communication terminal. The location information storage unit 115 plays a role of storing the current location and time information when the mobile communication terminal determines to enter the road based on the result of the information comparison unit.

The navigation program 120 is a program for guiding a road to a user and is currently implemented in a mobile communication terminal. The mobile communication terminal may have a model with and without a navigation program, but the present invention applies to both a model with and without a navigation program. That is, even a mobile communication terminal without a navigation program can obtain traffic information by applying the traffic management agent program to the mobile communication terminal.

The display unit 130 displays the current state of the main body of the mobile communication terminal device and the connection state and the connection state of the other party in a text message so that the user of the mobile terminal device can check. The key input unit 140 includes a plurality of numeric keys, and generates a corresponding key data when the user presses a predetermined key and outputs the corresponding key data to the controller. The transceiver 150 is connected to an antenna and plays a role of transmitting and receiving radio signals (wireless voice data and radio image data) through a base station. The controller 160 controls the overall operation of the mobile communication terminal device according to the signal input from the key input unit.

The mobile communication terminal means all terminal devices applied to personal mobile communication such as CDMA, GSM, third generation mobile communication terminal, PDA, and the like.

3 is a flowchart illustrating a processing procedure of the traffic information collection system according to the present invention.

First, a user having a mobile terminal 70 rides in a car to operate a navigation program (S100).

The agent program connected to the navigation program is operated together when the navigation program is operated (S200).

Alternatively, when the user of the mobile communication terminal does not operate the navigation program or is a mobile communication terminal without a navigation program, the user selects an agent program operation menu which is a menu of the mobile communication terminal.

Alternatively, when the traffic server wants to know the traffic information of the road of interest, the traffic server directly instructs the mobile terminal to operate the agent program. Whether the mobile terminal enters the road of interest can be determined by the continuous message exchange between the traffic server and the mobile terminal.

In the above, in the case of the terminal entering the road, the road entry detection unit within the terminal acquires its own location based on the base station information at the current location (S300).

In determining whether to enter the road, the traffic management server transfers the road information to the road information storage unit of the traffic management agent program in the terminal (S400).

The road information is road entry area and road section related information.

In the above description, the road entry area and the road section related information transmitted to the mobile communication terminal are a specific point (including an administrative area name such as latitude / longitude coordinates and an address) and a radius.

In the above description, the road entry area and road section related information transmitted to the mobile communication terminal is a list of base stations including a specific point (including an administrative area name such as latitude / longitude coordinates and an address).

The traffic management agent program compares the road entry area and section information with the current mobile communication terminal location (S500).

The location information storage unit of the traffic management agent program records the location information of the mobile communication terminal since the road entrance area (S600).

The moving speed of the vehicle is calculated based on the stored location information of the mobile communication terminal (S700).

In the above, in the case of the mobile communication terminal that has already entered the road, the position information obtained by the road entry detection unit of the mobile communication terminal is previously obtained and compared with the position information stored in the location information storage unit to calculate the speed.

In the above, the speeds of the sections are calculated for the section speeds calculated in one mobile communication terminal, and then the speeds are obtained every one minute after obtaining a certain section (e.g., obtaining 10 times of position information at a one-minute interval) using the average of these values. After adding all of them, we calculate the number of added speeds (10 here), so we divide by 10.

In the above, after calculating the speed of these terminals existing in the same section of the road in the same manner as above, to obtain the average of these and to obtain the corresponding section speed.

The mobile terminal measuring the speed transmits information on the speed to the traffic server through the wireless data network (S800).

In the above, the mobile communication terminal may acquire only the location information and transmit the location information to the server, and then calculate the section speed of the road after the server manages and controls the location information.

Although the technical spirit of the present invention described above has been described in detail in the preferred embodiments, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, the present invention will be understood by those of ordinary skill in the art that various embodiments are possible within the scope of the technical idea of the present invention.

As described above, according to the present invention, the mobile communication terminal checks its own location and calculates the moving speed of the vehicle based on the road information from the traffic server to minimize the load of the traffic server and to establish a wireless data network rather than a circuit network. By using this, the load on the mobile communication network can be minimized.

It is difficult to select a mobile communication terminal, which is a sample for calculating traffic information, because the speed can be calculated only when the road entry is made by the program in the mobile terminal.

Claims (15)

In a traffic calculation system using a wireless data network based on a mobile communication system based on traffic information collected from a mobile communication terminal having a traffic management agent program and a navigation program, Location information confirmation unit for confirming the current location information of the mobile communication terminal, road information storage unit for storing the road information transmitted from the traffic server, information comparison unit for comparing the road information and the location information and location information when entering the road A mobile communication terminal having a traffic management agent program including a location information storage unit for storing a speed and a speed measuring unit for calculating a moving speed of the vehicle using the stored location information, and a navigation program for guiding a road to a user; And a traffic server for exchanging traffic information and traffic calculation information with the mobile communication terminal. The mobile communication terminal and the traffic server exchange traffic information using a wireless data network, and the navigation program when the mobile communication terminal does not have a navigation program or the navigation program is not operated or when the traffic server instructs the operation of an agent program. Traffic management system using a wireless data network, characterized in that the traffic management agent program is operated without the operation of. delete delete The method according to claim 1, The road information transmitted from the traffic server to the mobile terminal is a specific point (including latitude / longitude coordinates, administrative district name) and the radius of the traffic calculation system using a wireless data network. The method according to claim 1, The road information transmitted from the traffic server to the mobile communication terminal is a list of base stations including a specific point (including latitude / longitude coordinates, administrative district name), the traffic calculation system using a wireless data network. The method according to claim 1, The moving speed of the vehicle calculated in the mobile communication terminal is calculated by calculating the average after calculating the moving speed at a certain period, the traffic data system using a wireless data network. delete The method according to claim 1, The mobile communication system is a wireless standard traffic calculation system using a wireless data network, characterized in that the CDMA data communication network according to the ISO 4.0 or more standard of the IS-95C CDMA data communication standard specification. delete In a traffic calculation system using a wireless data network based on a mobile communication system based on traffic information collected from a mobile communication terminal having a traffic management agent program and a navigation program, A first step of operating a navigation program of the mobile communication terminal; A second step of operating a traffic management agent program when the navigation program is operated; A third step in which the road entry detection unit of the traffic management agent program acquires its own location based on the base station information at the current location; A fourth step of the traffic server transferring the road information to the mobile communication terminal; A fifth step of the mobile communication terminal comparing the road information with a current location of the mobile communication terminal; A sixth step of storing, by the mobile communication terminal, location information when the road is entered; A seventh step of calculating a moving speed of the vehicle using the stored location information; And a eighth step of transmitting the calculated movement speed of the vehicle to a traffic server. The method according to claim 10, When the mobile communication terminal does not have a navigation program or do not operate the navigation program or when the traffic server instructs the operation of the agent program, the traffic management agent program is operated without the operation of the first and second navigation program Traffic calculation method using wireless data network. The method according to claim 10, The road information transmitted from the traffic server to the mobile terminal is a specific point (including latitude / longitude coordinates, administrative district name) and the radius, traffic calculation method using a wireless data network. The method according to claim 10, The road information transmitted from the traffic server to the mobile terminal is a list of base stations including a specific point (including latitude / longitude coordinates, administrative district name). The method according to claim 10, The vehicle's moving speed calculated in one mobile communication terminal is calculated by calculating the average after calculating the moving speed at a certain period. delete

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