KR100868044B1 - Method and apparatus for road analyzing traffic data - Google Patents

Abstract

A method and an apparatus for analyzing an amount of traffic data are provided to determine whether to transmit a vehicle by measuring the movement speed of the mobile terminal by using a location registration message transmitted by the mobile terminal on an analyzing object road by controlling the location registration parameter of a base station. A traffic information collecting apparatus(300) collects the location registration message of a mobile terminal(100), received from a base station(110) supplying a mobile communication service to an analyzing object road, by a subscriber. A road information database(420) supplies analysis object map information. A geographical information database(410) supplies geographic information of the mobile radio communications network including the base station.

Description

Traffic analysis method and device {METHOD AND APPARATUS FOR ROAD ANALYZING TRAFFIC DATA}

The present invention relates to a traffic analysis method and apparatus, and more particularly, to a traffic analysis method and apparatus using a location registration message of a mobile terminal.

 1 is a view for explaining a location registration method of a conventional mobile terminal.

Referring to FIG. 1, when the mobile terminal 100 moves, the mobile communication network basically performs location registration to perform an incoming service on the mobility of service subscribers, thereby changing the location of the mobile terminal 100. You can figure it out.

The mobile terminal 100 periodically or at a specific point in time, the location registration message (Visitor Location Register (hereinafter referred to as 'VLR') 140 or Home Location Register (hereinafter referred to as 'HLR')) By transmitting to 150, the call processing for the incoming / outgoing signal can be quickly performed by determining the location of the subscriber of the mobile terminal 100 or the state (Power On / Off) of the mobile terminal 100. have.

There are various types of location registration messages for each system standard, and the type is controlled by each system implementation.

As shown in FIG. 2, in 3GPP2 that defines a location registration type in a synchronous CDMA system, when the mobile terminal 100 moves by a certain period or more than a certain distance, a zone ID or a zone unit ( In case of changing SID-NID, location registration is required.

In addition, the 3GPP, which defines the location registration type in the asynchronous WCDMA (Wide Code Division Multiple Access) system, stipulates that the mobile terminal 100 registers the location according to a change in regional units or at regular intervals.

On the other hand, the location registration message may be processed in the VLR 140, in certain cases in order to control the load rise of the higher system HLR 150, the mobile terminal 100 moves in the switch 130 section or the mobile terminal ( Only the location registration message corresponding to the state degree of 100) is transmitted to the HLR 150 to manage the location. Therefore, the HLR 150 may not know the detailed position of the mobile terminal 100, and the detailed position is managed by the VLR 140.

On the other hand, the conventional method of measuring the amount of movement of the vehicle on the highway or congested downtown road is a method of measuring by real-time monitoring by the human eye or CCTV directly, or using a mobile communication network.

The most accurate way of measuring the road traffic through the naked eye or CCTV can be identified, but it requires considerable manpower and maintenance costs.

In addition, the measurement method using the mobile communication network among these is an approach through the location of the wireless terminal using the characteristics of the mobile communication network. Such a method is disclosed in Korean Patent Publication No. 2006-0097157 (Road Traffic Data Providing System and Operation Method thereof Using Mobile Communication Terminal) and Korean Patent Application Publication No. 2006-0089807 (Road Traffic Information Providing System Using Position Distribution of Mobile Communication Terminal) And method).

A feature of the invention described in the above-mentioned patent is characterized by determining the road traffic volume based on the number of mobile terminals existing for each base station through a home location register (HLR).

However, the above-described conventional traffic volume measuring method has a problem in that it is not possible to accurately grasp the location and mobility of the mobile terminals. This is because the home location register (HLR) can not distinguish whether the mobile terminal is fixed or moving, so it is incorrect to measure the road traffic on the road only for the number of subscribers belonging to the base station.

For example, when mobile subscribers make a full circle to watch sports at Jamsil Stadium, the road area serving the base station may be considered to have a lot of road traffic. However, since most of the terminals are in the stadium, the road traffic volume can be small.

In addition, the location registration message of the mobile terminal registered in the home location register (HLR) used in the conventionally proposed traffic measurement method is a problem that can not be performed in units of base stations, as described above in FIG.

This is because the home location register (HLR) registers the location of the mobile terminal in units of exchanges or paging zones in consideration of the load of the mobile communication network, and does not register the location of the mobile terminal in units of base stations. to be.

Therefore, according to the traffic measurement method proposed in the related art, it is possible to use only the location registration message of the mobile terminal passing through the boundary of the exchange unit or the calling area unit, so there is a limit in determining the traffic volume using the same.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to control a location registration parameter of a base station that provides a mobile communication service on an analysis target road, thereby transmitting a location registration message transmitted by the mobile terminal in the analysis target road section. The present invention provides a traffic analysis method and apparatus which reduces the speed of the traffic analysis service and the load of the overall traffic analysis system.

In addition, an object of the present invention is to control the location registration parameter of the base station that provides a mobile communication service on the analysis target road to measure the moving speed of the mobile terminal using the location registration message transmitted by the mobile terminal in the analysis target road section vehicle The present invention provides a traffic volume analysis method and apparatus capable of calculating an accurate amount of traffic by determining whether or not the vehicle is moved.

It is also an object of the present invention to control the location registration parameter of a base station that provides a mobile communication service on the road to be analyzed and weighted to the number of mobile terminals calculated using the location registration message transmitted by the mobile terminal in the road to be analyzed. The present invention provides a traffic volume analysis method and apparatus for multiplying a weighting factor to calculate an accurate traffic volume.

Other objects of the present invention will be readily understood through the following description.

According to an aspect of the present invention, a traffic analysis system for analyzing a traffic volume using a location registration message of a mobile terminal is disclosed.

Traffic volume analysis system according to an embodiment of the present invention provides a traffic information collection device, the analysis target road map information collected for each subscriber to the location registration message of the mobile terminal received from the base station providing a mobile communication service on the analysis target road The analysis target by using a road information database, a geographic information database providing geographic information of a mobile communication network including the base station, a location registration message for each subscriber, the analysis target road map information, and geographic information of the mobile communication network. It may include a traffic analysis device for calculating the traffic volume of the road.

According to another aspect of the present invention, a traffic analysis device for analyzing the traffic volume using the location registration message of the mobile terminal is disclosed.

The traffic analysis device according to an embodiment of the present invention maps the analysis target road map information and the geographic information of the mobile communication network, and the mobile terminal calculates the moving direction and the moving speed of the mobile terminal by using a location registration message for each subscriber. A calculation unit, a vehicle mounting determination unit that determines whether the mobile terminal is mounted on the vehicle by using the calculated moving speed, and the number of mobile terminals determined to be mounted on the vehicle is calculated as a result of the determination of the vehicle mounting determination unit; It may include a terminal number calculation unit and a traffic amount calculation unit for calculating the traffic volume by using a weighting factor in the calculated number of mobile terminals.

According to another aspect of the present invention, a method for analyzing a traffic volume using a location registration message of a mobile terminal in a traffic analysis system is disclosed.

In the traffic analysis method according to an embodiment of the present invention, the step of setting the base station for providing a mobile communication service on the analysis target road, the step of setting the location registration control parameters of the set base station, the mobile terminal moving on the analysis target road A location registration message is received from the mobile station and stored as traffic information for each subscriber, the traffic information for each subscriber is stored, the geographic information of the mobile communication network including the base station, and the analysis road map information are used. This may include the step of calculating.

According to another aspect of the present invention, a method for analyzing a traffic volume using a location registration message of a mobile terminal in a traffic analysis device is disclosed.

In the traffic volume analysis method according to an embodiment of the present invention, a plurality of location registration messages for each subscriber are stored in a traffic information database for each subscriber collected and stored at a base station that provides a mobile communication service on an analysis target road or a neighboring base station of the base station. Extracting the information, calculating the moving direction and the moving speed of the mobile terminal by using the extracted traffic information, geographic information of the mobile communication network including the base station, and the analysis road map information; Determining whether the mobile terminal is mounted on the vehicle by using the moved speed, calculating the number of mobile terminals determined to be mounted on the vehicle, and using a weighting factor for the calculated number of mobile terminals. The traffic volume may be calculated.

As described above, the present invention controls the location registration parameter of the base station that provides the mobile communication service on the analysis target road and measures the traffic volume using the location registration message transmitted by the mobile terminal in the analysis target road section, This has the effect of reducing the load on the speed and overall traffic analysis system.

In addition, the present invention controls the location registration parameter of the base station that provides a mobile communication service on the analysis target road to measure the movement speed of the mobile terminal using the location registration message transmitted by the mobile terminal in the analysis target road section to move the vehicle By determining whether or not, there is an effect that can calculate the exact amount of traffic.

In addition, the present invention controls the location registration parameter of the base station that provides a mobile communication service on the analysis target road weighting factor to the number of mobile terminals calculated using the location registration message transmitted by the mobile terminal in the analysis target road section It is effective to calculate the exact traffic volume by multiplying by the factor.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be denoted by the same reference numerals regardless of the reference numerals and redundant description thereof will be omitted. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Traffic volume analysis system according to the present invention relates to a system for analyzing the number of mobile vehicles moving on the road based on the location registration message of the mobile terminal (100).

In the traffic analysis system according to the present invention, the exchanger 130 and the traffic information collecting device 300 are directly linked with each other in order to collect a location registration message for traffic analysis, and the location transmitted from the mobile terminal 100 passing through the analysis target road. The first embodiment of collecting a registration message and the traffic information collection device 300 is linked to the operation management device 200 connected to the base station controller 120, the location registration transmitted from the mobile terminal 100 passing through the analysis target road The second embodiment may be configured to collect a message.

Hereinafter, the above-described first embodiment will be described in more detail with reference to FIGS. 3 and 4 and the above-described second embodiment with reference to FIGS. 5 and 6.

3 is a view for explaining a traffic analysis system according to a first embodiment of the present invention.

Referring to FIG. 3, the traffic volume analysis system includes a mobile terminal 100, a base station 110, a base station controller 120, an exchange 130, a VLR 140, an HLR 150, a traffic information collection device 300, Traffic volume analysis device 400, geographic information database 410 and road information DB (420).

The mobile terminal 100 may be various digital electronic devices such as a mobile phone, a personal digital assistant (PDA), a laptop computer, and may access a data network and / or a PSTN through the base station 110, and various types of devices. It can be combined with

The mobile terminal 100 informs the switch 130 of its location (subscribed base station) and state (slot mode, power on / off) from time to time to reduce the overall system load and improve the reliability of the incoming call of the mobile terminal 100. Perform incremental location registration.

The mobile terminal 100 receives system information from the base station 110 and transmits its location registration message at a predetermined period or a specific time point by a location registration control parameter included in the received system information. 250).

When the mobile terminal 100 moves on the analysis target road, the mobile terminal 100 receives system information including the location registration control parameter from the base station 110 that provides the mobile communication service on the analysis target road, and registers the location by the location registration control parameter. You can request Here, the location registration parameter may be any one of a location registration control parameter, a region-based location registration control parameter, and a location registration control parameter by a predetermined distance at a predetermined period.

When the mobile terminal 100 receives the region-based location registration control parameter, the mobile terminal 100 may perform location registration when the corresponding analysis target road section enters and exits.

The base station 110 performs functions such as radio signal transmission and reception, radio channel encoding and decoding, signal strength and quality measurement (uplink), baseband signal processing, radio resource management, and self maintenance. The base station 110 transmits a location registration message transmitted from the mobile terminal 100 at a predetermined period or a specific time point to the base station controller 120.

The base station 110 providing a mobile communication service on the analysis target road transmits system information or a location registration control message including the location registration control parameter to control the location registration to the mobile terminal 100 moving on the analysis target road.

The base station controller 120 performs functions such as matching with the base station, inter-cell handover processing, call control, and the like. In addition, the base station controller generates an internal management process whenever a voice or data service is generated, and performs control between the mobile terminal 100 and the system through the management processor.

The base station controller 120 controls the system information or the location registration control message including the location registration control parameter to be transmitted from the base station 110 providing the mobile communication service to the analysis target road section to the mobile terminal 100.

The exchange 130 may be interlocked with an external public switched telephone network (PSTN) or an Internet network, and a control function for efficiently collecting billing data for the mobile terminal 100 and efficiently operating radio access networks. . The exchange 130 may be a mobile service switching center (MSC), which is an exchange for a circuit service, or a serving GPRS support node (SGSN), which is an exchange for a packet service.

The exchange 130 temporarily stores the location information of the mobile terminal 100 in the VLR 140 with the location registration message received from the mobile terminal 100 and requests the location registration of the mobile terminal 100 to the HLR 150. . In addition, the exchange 130 requests the location information of the mobile terminal 100 to the VLR 140 to provide the mobile communication service to the mobile terminal 100.

When the exchange 130 receives the location response message from the HLR 150, the switch 130 transmits the location registration message (including the corresponding subcell information) to the corresponding traffic information collecting device 300.

When the mobile terminal 100 performs location registration, the VLR 140 temporarily stores the location information of the mobile terminal 100 and notifies the HLR 150. The VLR 140 receives location information from the HLR 150, stores and manages the location information, and utilizes the location control, call processing, and external operation processing of the mobile terminal 100.

The HLR 150 is a database that stores a service profile related to subscriber information including location information of the mobile terminal 100. The HLR 150 includes information on a subscriber identification number, a terminal identification number, a terminal unique number, and an additional service type. have. In addition, the HLR 150 stores information of the exchange 130 registered by the mobile terminal 100.

The traffic information collecting device 300 receives the location registration message of the mobile terminal 100 from the exchange 130 and separates the location registration message for analyzing the traffic volume of the road section to be analyzed.

The traffic information collecting device 300 stores a location registration message for analyzing the separated traffic volume in a traffic information database for each subscriber.

The traffic volume analyzing apparatus 400 calculates a moving direction and a moving speed of the mobile terminal 100 moving on the analysis target road by using the traffic information for each subscriber stored in the traffic information database, the analysis target road map information, and the geographic information of the mobile communication network. Calculate

The traffic analysis device 400 determines whether the vehicle corresponds to the movement of the vehicle using the calculated movement speed, and calculates the traffic volume by multiplying the number of mobile terminals determined as the movement of the vehicle by a weighting factor.

4 is a call processing diagram for explaining a traffic information collection method according to a first embodiment of the present invention.

In step S410, when the mobile terminal 100 enters the analysis target road section, the system information or location registration control including the location registration control parameter from the wireless access network 110 or 120 that provides the mobile communication service to the analysis target road section. Receive the message.

Since the traffic volume analysis system needs to accurately recognize the road serviced by the corresponding base station or sector in order to identify the amount of vehicle movement on the analysis target road, the traffic volume analysis system interworks with the system having road map information and includes a road map database.

In addition, the traffic volume analysis system correctly sets a corresponding base station that provides a mobile communication service in the analysis target road section, and sets in advance a location registration control parameter for generating a location registration when the mobile terminal 100 passes the analysis target road section.

This is because collecting the location registration message in the same way for all base stations is a burden on the mobile communication network.

In step S420, the mobile terminal 100 performs location registration to the wireless access network 110, 120 in the analysis target road section according to the received location registration control parameter.

In this case, for example, when the mobile terminal 100 enters or enters the analysis target road section by controlling a parameter for a location registration area, the mobile terminal 100 performs a location registration or controls a parameter for a predetermined period in the analysis target road section. Location registration can be performed more frequently.

In step S430, the wireless access network 110, 120 receives a location registration request from the mobile terminal 100, and requests the location registration to the switch 130.

In step S440, the VLR 140 in which the exchange 130 is located transmits a location registration request message to the HLR 150 according to the location registration request.

In operation S450, the HLR 150 transmits a location registration response message to the VLR 140 of the exchange 130.

In operation S460, the exchange 130 transmits a location registration response message to the wireless access networks 110 and 120.

In operation S470, the wireless access networks 110 and 120 transmit a location registration response message to the mobile terminal 100.

In step S480, the VLR 140 transmits a location registration message including the information described in Table 1 below to the traffic information collecting device 300.

Table 1

division Justice Exchanger information Switchboard with corresponding base station where location registration occurred Base station controller information Base station controller including corresponding base station where location registration has occurred Base station information The base station where the location registration occurred Sector information The sector where the location registration occurred Time information Time when location registration occurred

In operation S490, the traffic information collecting device 300 receives the location registration message from the VLR 140, and stores the location registration message in the traffic information database for each subscriber.

In step S500, the traffic analysis device 400 calculates the moving direction and the moving speed of the mobile terminal 100 by using the traffic information for each subscriber stored in the traffic information database collected in the corresponding road section.

In addition, the traffic analysis device 400 determines whether the vehicle corresponds to the movement of the vehicle using the calculated movement speed, and calculates the traffic volume by multiplying the number of mobile terminals determined as the movement of the vehicle by a weighting factor.

5 is a view for explaining a traffic analysis system according to a second embodiment of the present invention.

Referring to FIG. 5, the traffic analysis system includes a mobile terminal 100, a base station 110, a base station controller 120, an exchange 130, a VLR 140, an HLR 150, an operation management apparatus 200, and a traffic. The information collecting device 300, the traffic analysis device 400, a network management system (NMS) information database 410, which is a geographic information database, and a road information database 420.

Hereinafter, redundant descriptions of the same parts as the traffic analysis system described with reference to FIG. 2 will be omitted, and the differences will be mainly described.

In the traffic analysis system according to the second embodiment of the present invention, when the system configuration described above with reference to FIG. 2 is performed, the process load of the VLR 140 is further increased. The operation management device 200 and the traffic information collection device 300 connected to the base station controller 120 directly interwork to collect a location registration message for traffic analysis.

In this case, even when the process load increases further, the base station controller 120 has a smaller area because it is a small area in the exchange unit, so that a portion that may be exposed to risk is less than when directly linked by the VLR 140.

The base station controller 120 according to the second embodiment of the present invention transmits a location registration message for traffic analysis to the operation management apparatus 200.

The operation management apparatus 200 manages the base station 110 and the base station controller 120 and transmits a location registration message for analyzing the traffic volume to the traffic information collecting device 300 according to the request of the traffic information collecting device 300. .

The operation management apparatus 200 sets the location registration control parameter of the base station 110 that provides the mobile communication service on the analysis target road section through the base station controller 110.

The traffic information collecting device 300 receives the location registration message of the mobile terminal 100 from the exchange 130 and separates the location registration message for analyzing the traffic volume of the road section to be analyzed.

The traffic information collecting device 300 stores a location registration message for analyzing the separated traffic volume in a traffic information database for each subscriber.

The traffic volume analyzing apparatus 400 calculates a moving direction and a moving speed of the mobile terminal 100 moving on the analysis target road by using the traffic information for each subscriber stored in the traffic information database, the analysis target road map information, and the geographic information of the mobile communication network. Calculate

The traffic analysis device 400 determines whether the vehicle corresponds to the movement of the vehicle using the calculated movement speed, and calculates the traffic volume by multiplying the number of mobile terminals determined as the movement of the vehicle by a weighting factor.

6 is a call processing diagram for explaining a traffic information collection method according to a second embodiment of the present invention.

In step S610, when the mobile terminal 100 enters the analysis target road section, system information or location registration control including the location registration control parameter from the wireless access network 110 or 120 that provides the mobile communication service to the analysis target road section. Receive the message.

In step S620, the mobile terminal 100 performs location registration to the wireless access network 110, 120 in the analysis target road section according to the received location registration control parameter.

In step S630, the wireless access network 110, 120 receives a location registration request from the mobile terminal 100, and requests the location registration to the switch 130.

In step S640, the VLR 140 in which the exchange 130 is located transmits a location registration request message to the HLR 150 according to the location registration request.

In step S650, the HLR 150 transmits a location registration response message to the VLR 140 of the exchange 130.

In step S660, the exchange 130 transmits a location registration response message to the wireless access network (110, 120).

In operation S670, the wireless access networks 110 and 120 transmit a location registration response message to the mobile terminal 100.

In step S680, the wireless access network 110, 120 More specifically, the base station controller 120 transmits a location registration message including the information described in Table 2 below to the operation management apparatus 200.

[Table 2]

division Justice Exchanger information Switchboard with corresponding base station where location registration occurred Base station controller information Base station controller including corresponding base station where location registration has occurred Base station information The base station where the location registration occurred Sector information The sector where the location registration occurred Time information Time when location registration occurred Round trip delay time Received signal delay time compared to the reference time measured by the base station signal demodulator

Here, the round trip delay time is a delay time generated when the base station 110 receives the location registration message.

In operation S690, the operation management apparatus 200 transmits the received location registration message to the traffic information collecting device 300.

In operation S700, the traffic information collecting device 300 receives a location registration message from the operation management device 200, and stores the location registration message in a traffic information database for each subscriber.

In operation S710, the traffic volume analyzing apparatus 400 calculates a moving direction and a moving speed of the corresponding mobile terminal 100 using traffic information for each subscriber stored in a traffic information database collected in a corresponding road section.

In addition, the traffic analysis device 400 determines whether the vehicle corresponds to the movement of the vehicle using the calculated movement speed, and calculates the traffic volume by multiplying the number of mobile terminals determined as the movement of the vehicle by a weighting factor.

7 is a block diagram of an apparatus for analyzing traffic volume according to an embodiment of the present invention.

Referring to FIG. 7, the traffic analysis device 400 includes a moving speed calculator 430, a vehicle on-board determination unit 440, a terminal number calculator 450, and a traffic calculator 460.

The movement speed calculator 430 maps the analysis target road map information and the geographic information of the mobile communication network, and calculates the movement direction and the movement speed of the mobile terminal 100 by using the traffic information including the location registration message for each subscriber. do.

Here, the movement speed calculator 430 is connected with the road information database 420 to receive the analysis target road map information.

In addition, the movement speed calculator 430 is connected to a network management system (NMS) information database 410, which is a geographic information database, as shown in FIG. 15 to provide a mobile communication service on a road to be analyzed. Geographic information For example, latitude and longitude information is provided.

That is, the moving speed calculating unit 430 analyzes the time information and the location information of the plurality of location registration messages received from the base station providing the mobile communication service to the analysis target road among the location registration messages for each subscriber, and the road map information and the mobile communication target analysis. Mapping with the geographic information of the network can calculate the moving direction and speed of the mobile terminal.

For example, suppose that the first location registration message of the subscriber was received at base station # 1 at 12:30 and the second location registration message of the same subscriber was received at base station # 2 at 12:40 on the road segment to be analyzed. lets do it. The moving speed calculator 430 determines that the base station # 2 is located at the first point of the road serviced by the base station # 1 using the analysis road map information, the geographic information of the base station # 1 and the base station # 2, and the two location registration messages described above. The movement direction may be set to the second point of service, and the movement speed of 60 km / hour may be calculated using a distance of 10 km and a time difference of 10 minutes between the roads serviced by the base station # 1 and the base station # 2.

The on-vehicle determination unit 440 determines whether the mobile terminal 100 is mounted in the vehicle by using the calculated moving speed.

The on-vehicle determination unit 440 determines that the mobile terminal 100 is mounted on the vehicle when the moving speed calculated by the moving speed calculating unit 430 is greater than a preset threshold speed. Here, the critical speed may vary depending on the type of road (eg, highway, general road, city or rural road). In addition, the critical speed may be preset by a designer or a user, and may be included in a speed for distinguishing the speed of the vehicle from a walking, for example, in the range of 4 km per hour to 50 km per hour.

As a result of the determination of the on-vehicle determination unit 450, the number of terminal calculation unit 450 calculates the number of mobile terminals determined to be mounted in the vehicle.

Since the number of terminal calculator 450 analyzes the traffic volume using the location registration message for each subscriber, it determines all the traffic information including the location registration message for each subscriber and calculates the number of mobile terminals determined to be mounted in the vehicle.

The traffic volume calculator 470 calculates a weight factor based on the calculated number of mobile terminals to calculate the traffic volume of the road section to be analyzed. The weighting factor may include a weighting factor for a vehicle weighting factor for calculating a ratio of the number of mobile terminals per vehicle and a ratio of subscribers per service provider. Here, the vehicle weighting factor may be set differently according to the analysis target road section by applying a statistical method, for example, calculating that two mobile terminals per vehicle are occupied. Further, the weighting factor for the subscriber ratio by mobile carrier is set to (KTF subscribers) / (KTF subscribers + LGT subscribers + SKT subscribers), for example, if the mobile terminal receives mobile communication service from KTF. Can be.

8 is a flowchart illustrating a traffic analysis method in a traffic analysis system according to an embodiment of the present invention.

First, in step S810, the traffic volume analysis system sets up a base station that provides mobile communication services on the road to be analyzed. Here, it is preferable that the base station selects a base station located on a highway or a dedicated lane. This is because there is a risk of network operation due to an increase in load due to location registration in the mobile communication network when the same method is applied to all base stations.

In step S820, the traffic analysis system sets the location registration control parameter or location registration control message of the base station set in the analysis target road section. Here, the location registration control parameter is set in the base station controller 120 by the control of the operation management device 200 is included in the system information from the base station 110 is transmitted to the mobile terminal 100. The location registration control message may be transmitted to the mobile terminal 100 to force location registration through the base station 110.

In step S830, the traffic volume analysis system collects the location registration message received from the mobile terminal 100 that received the location registration control parameter in the segment target road section. Here, the collected location registration message may be stored in a traffic information database for each subscriber.

In step S840, the traffic volume analysis system analyzes the road traffic volume using the collected location registration message.

In step S850, the traffic volume analysis system outputs the calculated traffic volume information.

The traffic volume analysis system may provide traffic volume information in conjunction with a location-based service, for example, a vehicle navigation service providing system.

9 is a view for explaining a location registration method in a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 9, in step S910, the mobile terminal 100 receives system information including a location registration control message from the base station 110.

In operation S920, the mobile terminal 100 may extract the location registration control message from the received system information and set the extracted parameters.

In step S930, if the location registration condition is achieved according to the extracted location registration control parameter, the mobile terminal 100 performs location registration.

Here, the position registration control parameter and the position registration method will be described in more detail with reference to FIGS. 10 and 11.

10 is a table illustrating an example of setting location registration control parameters of an analysis target road segment service base station and a general base station according to an embodiment of the present invention.

Referring to FIG. 10, when the location registration control parameter according to the 3GPP2 standard is timer based registration, when the mobile terminal 100 approaching the road segment service base station 110 to be analyzed has passed 15 minutes from the last time location registration, The location registration message should be transmitted to the analysis target road segment service base station 110.

On the other hand, a mobile terminal approaching a general base station should transmit a location registration message to the general base station when 60 minutes have elapsed since the last time location registration.

In addition, when the location registration control parameter is distance-based registration, when the mobile terminal approaching the analysis target road segment service base station moves more than 4 km from the last location registration location, the location registration message is transmitted to the analysis target road segment service base station. Should be.

On the other hand, when the mobile terminal approaches the general base station, the location registration message according to the moving distance is not transmitted to the general base station.

When the location registration control method is region-based registration, a separate REG_ZONE may be allocated to the road segment service base station to be analyzed.

If it is previously defined as TOTAL_ZONE 1 allocated to the analysis target road segment service base station, the mobile terminal may immediately perform a location registration procedure when the REG_Zone decoded from the signal received from the accessed base station is changed.

In the 3GPP standard, a general location registration method may be used for traffic information analysis.

Among the location registration methods defined in the asynchronous WCDMA standard, a usable method is to change the LAC-RAC of the corresponding cell of the road service base station to be analyzed differently from other cells in order to generate a normal LU or a normal RU. LAC and RAC are defined in SIB type-1. The LAC generates the location registration of the CS Domain, and the change of the RAC causes the location registration of the PS Domain.

Here, the location registration control parameter may be transmitted to the mobile terminal through system information or a predetermined control signal transmitted by the base station, and the mobile terminal may perform a location registration procedure according to the received location registration control method.

11 is a view for explaining a traffic analysis method using the area-based registration according to an embodiment of the present invention.

Referring to FIG. 11, when the location registration control method is set to area-based registration, the mobile terminal 100 may obtain REG_ZONE ID information from system information transmitted by the base station 110.

In the analysis target road segment service base station or the analysis target road segment service cell according to the present invention, for example, REG_ZONE is set differently, and a location registration message may be generated whenever the REG_ZONE is changed.

As illustrated in FIG. 11, in the standard of 3GPP2, an example in which a location registration is generated when the mobile terminal 100 moves the analysis target road service base station # 2 via the general base station # 1 is described. In the case of the 3GPP standard, the RAC value of the analysis target road service base station may be changed.

When the service area is changed from the general base station # 1 to the area of the analysis target road service base station # 2, the zone based registration is transmitted and the mobile terminal 100 moves from the analysis target road service base station # 2 to the general base station # 3. When entering the service area of the general base station # 3, Zone Based Registration occurs.

 Therefore, when the two location registration messages are stored in the traffic information collecting device and used for traffic analysis, the moving direction and the moving speed of the vehicle can be calculated.

12 and 13 are diagrams for describing a method of collecting traffic information in a traffic information collecting device according to an embodiment of the present invention.

Referring to FIG. 12, in operation S1210, the traffic information collecting device 300 receives a location registration message of the mobile terminal 100 from the exchange 130 or the operation management device 200.

As shown in FIG. 13, the collected location registration message includes at least one of a location registration message reception time, a location registration type, switch information, base station controller information, base station information, cell information, and round trip delay time at the traffic information collecting base station. Included.

In operation S1220, the traffic information collecting device 300 determines whether the collected location registration message is a location registration message received from an analysis target road service base station or an adjacent base station.

In operation S1230, as a result of the determination, the traffic information collecting device 300 discards the collected location registration message if the collected location registration message is not a location registration message received from the analysis target road service base station or a neighboring base station.

In operation S1240, as a result of the determination, if the collected location registration message is a location registration message received from an analysis target road service base station or a neighboring base station, the traffic information collection device 300 obtains traffic information corresponding to the location registration message. Create

In operation S1250, the traffic information collecting device 300 stores the generated traffic information in a traffic information database for each subscriber.

The traffic information database is collected for each subscriber using the subscriber identification number as shown in FIG. For example, the traffic information is generated by using a location registration message performed at a base station and a neighboring base station that provide mobile communication services to the analysis target road from the same subscriber as the second subscriber of FIG. 13. This is to accurately calculate the number of mobile terminals 100 aboard the movement of the vehicle, except for the mobile terminal 100 of the first subscriber of FIG. 13, which resides without moving in the traffic information collecting base station.

14 is a view for explaining a traffic analysis method in the traffic analysis device according to an embodiment of the present invention.

Referring to FIG. 14, in S1410, the traffic volume analyzing apparatus 400 extracts traffic information for each subscriber collected from a base station serving an analysis target road section.

In S1420, the traffic volume analysis device 400 extracts traffic information in which a plurality of location registration messages are stored to the same subscriber among the traffic information for each subscriber.

In S1430, the traffic analysis device 400 is the first location registration performed from the mobile terminal 100 of the same subscriber is a road service base station to be analyzed, and the second location registration is traffic performed at a neighbor base station of the road service base station to be analyzed. Extract the information.

In S1440, the traffic analysis device 400 analyzes the traffic in the extracted traffic information, the corresponding road map information extracted from the road information database 420, and a network management system (NMS) information database 410, which is a geographic information database. Using the geographic information of the mobile communication network including the service base station to calculate the moving direction of the mobile terminal on the road to be analyzed and the moving speed in the corresponding section.

The traffic analysis device 400 may determine the service direction of the corresponding road based on the direction angle of the antenna of the traffic information collecting base station, and may predict the service area for each sector based on the base station and the antenna direction angle matched on the road. have.

The traffic volume analyzing apparatus 400 may determine a moving direction of the road based on two location registration messages generated when passing through the analysis target road service base station.

The traffic analysis device 400 may calculate the movement speed of the mobile terminal 100 by obtaining the approximate movement time and the movement distance from the mapped road map based on the time information included in the location registration message.

In S1450, the traffic analysis device 400 determines whether the mobile terminal 100 corresponds to the movement of the vehicle using the calculated movement speed.

The traffic analysis device 400 may determine that the mobile terminal 100 is moving when the mobile terminal 100 moves at a predetermined threshold speed, for example, 4 km or more. Here, the threshold speed may vary depending on the type of road included in the service area of the traffic information collecting base station, for example, a downtown road, an automobile road, a general national road, or a highway.

In S1460, when it is determined that the vehicle traffic is determined to be moving, the traffic analysis device 400 calculates and stores the number of mobile terminals determined to be mounted on the vehicle.

In S1470, the traffic analysis device 400 checks whether the analysis cycle has arrived. The analysis period may be preset by the designer or by the user.

In S1480, the traffic analysis device 400 calculates the number of moving vehicles (traffic volume) by multiplying the number of mobile terminals by a weighting factor.

Since the traffic analysis apparatus 400 may include a plurality of mobile terminals 1000 in one vehicle, the traffic analysis apparatus 400 calculates the number of mobile vehicles by multiplying the calculated number of mobile terminals by a weighting factor, where the weight factor is As described, it may be a weighting factor for the vehicle weighting factor or the service provider subscriber ratio according to the number of vehicles / terminals.

15 is a structure of a network management system (NMS) information database according to an embodiment of the present invention.

The network management information database according to an embodiment of the present invention may have a tree structure for each exchange identifier.

Referring to FIG. 15, the first exchanger identifier may have first to Nth base station controller identifiers as child nodes, and each base station controller identifier may have first to Nth base station identifiers as child nodes.

Each base station identifier may have a first to Nth cell identifier corresponding to a cell assigned to the base station, and each cell identifier may have latitude / longitude information in which the corresponding cell is located.

The traffic analysis device 400 according to the present invention uses the exchange identifier, the base station controller identifier, the base station identifier, and the cell identifier included in the traffic information, and the actual position information of the corresponding base station or cell, where the position information is latitude and longitude. May be obtained.

In general, the base station and the cell assigned to the base station may have the same location, but in the case of a remote cell, the cell may be installed at a location geographically separated from the base station. Therefore, it may be reasonable to map latitude / longitude for each cell identifier.

The general network management information database may further include many other information not described in this figure.

16 and 17 are exemplary views for explaining a traffic analysis method according to an embodiment of the present invention.

Referring to FIG. 16, the traffic analysis system sets an analysis target road service base station (Seongnam Pangyo IC base station) that provides a mobile communication service to a corresponding interchange in order to measure a traffic volume at a Pangyo interchange of a Gyeongbu expressway.

The traffic volume analysis system changes the location registration condition of the set road service base station to be different from other general base stations.

When entering the service area of the Seongnam Pangyo IC base station set as the analysis target road service base station, the mobile terminal 100 receives system information including the location registration control parameter and performs location registration.

In the traffic analysis system, when a mobile terminal 100 mounted on a vehicle enters and exits a Seongnam Pangyo IC base station, or enters or performs a preset cycle, a location registration message is stored in a traffic information database for each subscriber.

The traffic volume analysis system calculates the moving direction and the moving speed of the mobile terminal 100 mounted on the vehicle in the corresponding highway using traffic information, road map information, and network geographic information stored in the subscriber traffic information database.

The traffic volume analysis system calculates the number of mobile terminals 100 determined as the movement of the vehicle by using the calculated movement direction and the movement speed of the mobile terminal 100.

The traffic volume analysis system finally calculates the traffic volume by putting a weighting factor on the number of mobile terminals 100 analyzed in each analysis cycle.

Here, the weighting factor may be a weighting factor for a vehicle weighting factor for calculating a ratio of the number of mobile terminals per vehicle and a service provider subscriber ratio.

For example, referring to FIG. 17, the traffic analysis system may calculate traffic as follows.

If it is determined that the mobile terminal 100 is the uplink by determining the moving direction, and the number of the mobile terminals determined to be mounted on the vehicle is 500, the amount of vehicle movement of the upline is 500 of the mobile terminals / vehicle weight factor (2) / service. Operator subscriber ratio weighting factor (0.32) = 781

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

1 and 2 are views for explaining a conventional location registration method.

3 is a view for explaining a traffic analysis system according to a first embodiment of the present invention.

4 is a call processing diagram for explaining a traffic analysis method according to a first embodiment of the present invention.

5 is a view for explaining a traffic analysis system according to a second embodiment of the present invention.

6 is a call processing diagram for explaining a traffic analysis method according to a second embodiment of the present invention.

Figure 7 is a block diagram of a traffic analysis device according to an embodiment of the present invention.

8 is a flowchart illustrating a traffic analysis method according to an embodiment of the present invention.

9 is a view for explaining a location registration method in a mobile terminal according to an embodiment of the present invention.

10 is a table illustrating an example of setting location registration control parameters of an analysis target road segment service base station and a general base station according to an embodiment of the present invention.

11 is a view for explaining a traffic analysis method using the area-based registration according to an embodiment of the present invention.

12 and 13 are diagrams for explaining a method of collecting traffic information in a traffic information collecting device according to an embodiment of the present invention.

14 is a flowchart illustrating a traffic analysis method in a traffic analysis device according to an embodiment of the present invention.

15 is a diagram for explaining a geographic information database according to an embodiment of the present invention.

16 and 17 are exemplary diagrams for explaining a traffic analysis method according to an embodiment of the present invention.

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

100: mobile terminal 110: base station

120: base station controller 130: switchboard

140: Visitor Location Register (VLR) 150: Home Location Register (HLR)

200: operation management device 300: traffic information collection device

400: traffic analysis device 410: geographic information database

420: road information database 430: moving speed calculator

440: vehicle on-board determination unit 450: terminal number calculation unit

Claims (25)

In the traffic analysis system for analyzing the traffic volume using the location registration message of the mobile terminal, A traffic information collecting device for collecting location registration messages of the mobile terminal received by a base station providing a mobile communication service on an analysis target road for each subscriber; A road information database provided with analysis road map information; A geographic information database provided with geographic information of a mobile communication network including the base station; And And a traffic volume analyzer configured to calculate a traffic volume of the analysis target road by using the location registration message collected for each subscriber, the analysis target road map information, and the geographic information of the mobile communication network. The method of claim 1, And the base station transmits system information including location registration control parameters to the mobile terminal so that the mobile station performs location registration on the road to be analyzed. The method of claim 2, The location registration control parameter is Traffic volume, which is any one of a zone based location registration parameter, a timer based location registration parameter, a distance based location registration parameter, and a general location registration (LAI-RAI variation) parameter. Analysis system.  The method of claim 1, The traffic information collecting device is a traffic volume analysis system, characterized in that the location registration message is collected by interworking with the base station controller to which the base station belongs. The method of claim 4, wherein The operation management apparatus is a traffic volume analysis system, characterized in that the location registration control parameters of the base station is set through the base station controller. The method of claim 1, The traffic information collecting device is the traffic volume analysis system, characterized in that the location registration message is collected in association with the switch to which the base station belongs. The method of claim 1, And the location registration message includes at least one of a location registration time, a location registration type, an exchanger identifier, a base station controller identifier, a base station identifier, a cell identifier, and a round trip delay time. The method of claim 1, The traffic analysis device A moving speed calculator configured to map the analysis target road map information and geographic information of the mobile communication network, and calculate a moving direction and a moving speed of the mobile terminal by using a location registration message collected for each subscriber; A vehicle on-board determination unit for determining whether the mobile terminal is mounted on the vehicle by using the calculated moving speed; A terminal number calculation unit configured to calculate the number of mobile terminals determined to be mounted in the vehicle as a result of the determination of the vehicle determination unit; And And a traffic amount calculator configured to calculate a traffic amount by using a weighting factor for the calculated number of mobile terminals. In the traffic analysis device for analyzing the traffic volume using the location registration message of the mobile terminal, A moving speed calculator configured to map roadmap information to be analyzed and geographic information of a mobile communication network, and calculate a moving direction and a moving speed of the mobile terminal by using a subscriber location registration message; A vehicle on-board determination unit for determining whether the mobile terminal is mounted on the vehicle by using the calculated moving speed; A terminal number calculation unit configured to calculate the number of mobile terminals determined to be mounted in the vehicle as a result of the determination of the vehicle determination unit; And And a traffic amount calculation unit configured to calculate a traffic amount by using a weighting factor for the calculated number of mobile terminals. The method of claim 9, And a road information database for providing the analysis road map information. The method of claim 9, And a geographic information database for providing geographic information of the mobile communication network. The method of claim 9, The moving speed calculating unit The time information and location information of a plurality of location registration messages received from a base station providing a mobile communication service to the analysis target road among the subscriber location registration messages are mapped to analysis road map information and geographic information of the mobile communication network. A traffic analysis device, characterized in that the movement direction and the movement speed of the mobile terminal are calculated. The method of claim 9, The on-vehicle determination unit And when the calculated moving speed is greater than a predetermined threshold speed, determining that the mobile terminal is mounted in the vehicle. The method of claim 13, The critical speed is a traffic analysis device, characterized in that included in the range of 4km per hour to 50km per hour. The method of claim 9, The weight factor is a traffic analysis device, characterized in that at least one of the weighting factor for the vehicle weight factor and the ratio of the subscribers per service provider, the ratio of the number of mobile terminals per vehicle. In the method of analyzing the traffic volume using the location registration message of the mobile terminal in the traffic analysis system, Setting up a base station providing a mobile communication service on an analysis target road; Setting location registration control parameters of the set base station; Receiving a location registration message from the mobile terminal moving on the analysis target road and storing the traffic registration information for each subscriber; And And calculating the traffic volume of the analysis target road by using the stored subscriber-specific traffic information, geographic information of the mobile communication network including the base station, and analysis target road map information. The method of claim 16, The setting of the location registration control parameter of the set base station The traffic volume analysis method further comprises the step of inputting a location registration control parameter in the operation management device interlocked through the base station and the base station controller. The method of claim 16, The location registration control parameter may be any one of a zone based location registration parameter, a timer based location registration parameter, a distance based location registration parameter, and a general location registration (LAI-RAI variation) parameter. Traffic volume analysis method characterized in that. The method of claim 16, Receiving and storing a location registration message from the mobile terminal moving on the analysis target road Receiving a location registration message from the mobile terminal; Determining whether the received location registration message is a location registration message received from a base station providing a mobile communication service on the analysis target road or a neighboring base station of the base station; And And, when the location registration message is received from a base station that provides a mobile communication service on an analysis target road or a neighboring base station of the base station, storing the location registration message for each subscriber. Way. The method of claim 16, The traffic volume of the analysis target road is calculated by using the stored subscriber-specific traffic information, geographic information of a mobile communication network including the base station, and analysis target road map information. Extracting traffic information in which a plurality of location registration messages are stored among the stored traffic information for each subscriber; Calculating a moving direction and a moving speed of the mobile terminal by using the extracted traffic information, geographic information of a mobile communication network including the base station, and the analysis target road map information; Calculating the number of mobile terminals mounted on the vehicle by using the calculated moving speed; And And calculating the traffic volume by using the calculated number of mobile terminals and weighting factors. In the method for analyzing the traffic volume using the location registration message of the mobile terminal in the traffic analysis device, In the traffic information database for each subscriber storing the location registration message of the mobile terminal collected from the base station that provides mobile communication service on the analysis target road or the neighboring base station of the base station, Extracting; Calculating a moving direction and a moving speed of the mobile terminal by using the extracted traffic information, geographic information of a mobile communication network including the base station, and analysis target road map information; Determining whether the mobile terminal is mounted in a vehicle by using the calculated moving speed; Calculating the number of mobile terminals determined to be mounted on the vehicle as a result of the determination; And Traffic weight analysis method comprising the step of calculating the traffic volume by using a weighting factor to the calculated number of mobile terminals. The method of claim 21, Traffic information including a plurality of location registration messages for each subscriber in a traffic information database for each subscriber storing a location registration message of the mobile terminal collected from a base station providing a mobile communication service on the analysis target road or a neighboring base station of the base station Extracting steps Storing the location registration message of the mobile terminal collected from a base station providing a mobile communication service on the analysis target road or a neighboring base station of the base station in a traffic information database for each subscriber; Extracting traffic information including a plurality of subscriber location registration messages from the subscriber traffic information database; Determining whether the plurality of location registration messages are location registration messages received by a mobile station providing a mobile communication service on the analysis target road from a base station or a neighboring base station of the base station; And If the plurality of location registration messages are location registration messages received from the base station or the neighboring base station, extracting traffic information including the location registration message. The method of claim 21, Calculating the moving direction and the moving speed of the mobile terminal by using the extracted traffic information, geographic information of the mobile communication network including the base station, and analysis target road map information; Mapping geographic information of the mobile communication network and the analysis target road map information; And Calculating a moving direction and a moving speed of the mobile terminal by using time information and location information included in a plurality of subscriber registration location messages included in the traffic information on the mapped road map. Traffic analysis method. The method of claim 21, In the step of calculating the traffic volume by using a weighting factor for the calculated number of mobile terminals, The weight factor is a traffic volume analysis method, characterized in that at least one of the weighting factor for the vehicle weighting factor and the service provider subscriber ratio to calculate the ratio of the number of mobile terminals per vehicle. The method of claim 21, After the step of calculating the traffic volume by using a weighting factor for the calculated number of mobile terminals Traffic volume analysis method characterized in that the traffic volume information of the analysis target road is provided in conjunction with the location-based service providing device.

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