KR101508136B1 - System for collecting of traffic information, revision device of valid sampling and method for revision of valid sampling - Google Patents

Abstract

The present invention relates to a traffic information collecting system, an effective sample correcting apparatus and an effective sample correcting method, which calculates an average speed by calculating a traveling speed in a road section of each portable terminal belonging to a sample information table, The mobile terminal is extracted as a sample to be deleted and the position information of the sample to be deleted is checked to confirm that the road section on the same line as the road section is moved. According to the present invention, it is possible to simplify the process of extracting the effective sample by flexibly correcting the effective sample, and to provide high quality traffic information reflecting the traffic situation in real time have.

Description

Technical Field [0001] The present invention relates to a traffic information collecting system, an effective sample correcting apparatus, and an effective sample correcting method,

The present invention relates to an effective sample correction method for generating traffic information, and more particularly to a traffic information collection system for flexibly correcting an effective sample extracted when generating traffic information, and an effective sample correction method and an effective sample correction method.

Generally, a car navigation system (CNS) is provided with location information from the current location of a vehicle, and is combined with geographical information to provide route guidance, traffic information, surrounding information, and additional information It is a state-of-the-art technology that provides various services. It combines GPS (Global Positioning System) technology and GIS (Geographic Information System) Transportation systems, delivery trucks, and quick services.

In addition, a mobile device such as a personal digital assistant (PDA) is equipped with a GPS to display its position along with a map, and to provide information on nearby traffic, shopping, restaurants, GPS technology is being applied.

Telematics equipment, which is a compound word of telecommunication and information science, is installed in the vehicle. It combines wireless mobile communication, GPS technology, GIS, call center technology, And it is evolving into the concept of mobile office by combining real time traffic and living information, emergency replacement method, remote vehicle diagnosis, vehicle accident, theft prevention, driving route, in-vehicle control, audio system and display.

However, in order to receive such services, there is a problem in that it can only be provided if an expensive telematics device for supporting wireless mobile communication, GPS technology, and geographic information system (GIS) is installed in a car.

Accordingly, in order to provide real-time traffic, living information, and driving route by using a mobile phone (mobile terminal) currently possessed by most drivers, a GPS is installed in the hands-free system to determine the location of the vehicle, The same information can be provided.

Meanwhile, in order to provide traffic information and route guidance in another way, traffic information can be provided only when the traffic situation of the road is detected and stored in a database in real time in the service center. Therefore, There is a method of collecting and installing a closed circuit television (CCTV) on a main road, a collecting method using a traffic sensor, a collecting method using a loop detector installed on the road, and a collecting method using a beacon And collects and uses the collected information.

However, in order to collect traffic information by the above-described method, it is necessary to operate a collection vehicle for collecting traffic information, and in order to purchase traffic information from an information provider, The cost is not only excessive but also it is difficult to continuously measure the traffic information. Therefore, the traffic information is not reflected in real time.

It is an object of the present invention to provide a traffic information collection system for flexibly correcting an effective sample extracted when generating traffic information, an effective sample corrector thereof, and an effective sample correction method. have.

According to another aspect of the present invention, there is provided a traffic information collecting system including a portable terminal that is located in a road section for collecting traffic information or a portable terminal that moves to a road section, A tracking device for periodically checking location information of the mobile terminal registered in the sample information table and registering the location information in a sample information table, calculating a moving speed at a road section of each portable terminal belonging to the sample information table, Extracts a mobile terminal having a deviation of a moving speed and an average speed by a predetermined threshold value or more, selects the target mobile terminal as a deletion target sample, and moves the same road segment to the road segment by confirming the location information of the target object to be deleted The effective sample correcting apparatus for registering the deletion target sample in the sample information table, And a virtual machine service apparatus for providing traffic information of a road section by using an average value of the extracted portable terminals.

According to another aspect of the present invention, there is provided an effective sample correcting apparatus comprising: a transmitting / receiving unit for transmitting and receiving data; a storage unit for storing road section information; and a road section for collecting traffic information of each portable terminal belonging to the sample information table The moving speed of the mobile terminal is calculated to calculate the average speed and the mobile terminal having a deviation of the moving speed and the average speed by a predetermined threshold value or more is extracted and selected as the target of deletion, And a control unit for registering the deletion target sample in the sample information table if it is confirmed that the same line segment is moved.

In the effective sample correcting apparatus of the present invention, the control unit periodically confirms the position of the deletion target specimen.

In the effective sample correcting apparatus of the present invention, the controller receives the CDR (Call Data Record) or handoff information of the portable terminal from the communication network and confirms the position of the portable terminal.

In the effective sample correction apparatus of the present invention, the control unit receives the travel information of the portable terminal from a system capable of paying the toll on the expressway by wireless communication, and confirms the position of the portable terminal.

In the effective sample correcting apparatus of the present invention, the controller adjusts the period using the average speed of the portable terminal belonging to the sample information table or the average speed of the sample to be erased.

In the effective sample correcting apparatus of the present invention, the control unit sets a threshold value using information on each road or external information on each road.

In the effective sample correcting apparatus of the present invention, the controller extracts a portable terminal having no change in position for a predetermined period of time from the sample to be deleted, and deletes the portable terminal from the sample information table.

In the effective sample correcting apparatus of the present invention, the control unit is characterized in that a portable terminal moving on a road other than the road on which traffic information is to be generated is extracted from the sample to be deleted and registered in a sample information table for other road sections .

In the effective sample correcting apparatus of the present invention, the control unit extracts only the portable terminal that has continuously performed the call among the portable terminals moving on another road, and registers it in the sample information table of the other road sections.

In the effective sample correcting apparatus of the present invention, the controller generates the traffic information using the average speed of the road section, and deletes the portable terminal registered in the sample information table.

According to an aspect of the present invention, there is provided a portable terminal, which receives average speed information of a road section from a terminal transceiver for data transmission and reception and a traffic information collection system, calculates a travel speed, And a terminal control unit for confirming the current location and transmitting the current location information to the traffic information collection system when the deviation from the average speed of the road section differs by more than a predetermined threshold value.

In the portable terminal of the present invention, the terminal control unit transmits the calculated traveling speed together with the current position information to the traffic information collection system.

The mobile terminal according to the present invention may further include a terminal storage unit for storing the road section information. The terminal control unit refers to the road section information and stores the effective specimen for registering the portable terminal as an effective sample of the road section on which the portable terminal is moving And a tracking module for periodically tracking location information of the portable terminal registered with the extraction module and the effective sample.

According to another aspect of the present invention, there is provided an effective sample correction method for calculating a moving speed in a road section for collecting traffic information of each portable terminal belonging to a sample information table, A traffic information collection system extracts a mobile terminal having a deviation of a moving speed and an average speed by a predetermined threshold value or more, And a registration step of registering the deletion target sample in the sample information table.

In the effective sample correction method of the present invention, the registration step is characterized in that the traffic information collection system periodically confirms the position of the object to be deleted.

In the effective sample correction method of the present invention, the registration step is characterized in that the traffic information collection system adjusts the period using the average speed of the effective sample or the average speed of the sample to be erased.

In the effective sample correction method of the present invention, in the selection step, the traffic information collection system sets a threshold value by using information on each road or external information of each road.

The effective sample correction method of the present invention further includes a sample deletion step of extracting a portable terminal having no change in position in the sample to be deleted from the sample information table after the selection step, .

The effective sample correction method of the present invention is characterized in that after the selection step, the traffic information collection system extracts a portable terminal moving on a road other than the road on which the traffic information is to be generated, And a second registration step of registering in the second registration step.

In the effective sample correction method of the present invention, in the second registration step, only the portable terminal that has continuously carried out the call among the portable terminals entering the other road by the traffic information collection system is extracted and registered in the specimen information table of the other road sections .

According to another aspect of the present invention, there is provided an effective sample correcting method comprising: a receiving step of receiving a mean speed information of a road section from a traffic information collection system of a portable terminal; a calculating step of calculating a moving speed of the portable terminal; A step of confirming a current position of the portable terminal when the deviation between the moving speed calculated by the portable terminal and the average speed of the road section on which the portable terminal is moving differs by more than a predetermined threshold value, And transmitting the confirmed current position information.

In the effective sample correcting method of the present invention, the transmitting step transmits the moving speed calculated by the portable terminal together with the current position information to the traffic information collecting system.

According to the present invention, it is possible to simplify the process of extracting an effective sample by flexibly correcting an effective sample, which is the most important factor in generating traffic information by using a communication network, and to improve the quality of traffic Information can be provided.

Also, by setting the speed difference to be different for each road section, it is possible to generate more accurate traffic information by reflecting the road condition when correcting the effective specimen.

In addition, by directly registering the portable terminal as an effective sample for generating traffic information, the reliability of the effective sample can be improved.

By providing more accurate traffic information, it is possible to improve the convenience of the user who wants to check the traffic situation in real time.

1 is a block diagram of a traffic information providing system to which the present invention is applied.
2 is a block diagram showing an effective sample correcting apparatus according to the present invention.
3 is a configuration diagram illustrating a portable terminal according to another embodiment of the present invention.
4 is a flowchart illustrating an effective sample correction method according to an embodiment of the present invention.
5 is a flowchart illustrating an effective sample correction method according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention. The same reference numerals are used for portions having similar functions and functions throughout the drawings.

It is to be appreciated that where one element is referred to herein as " transmitting " data or a signal to another element, it may directly transmit data or signals and may transmit data or signals through at least one other element it means.

The basic concept of the traffic information providing system according to the present invention is to set the subscriber terminal passing through the highway or general road for generating traffic information as an effective sample and then to track the location of the portable terminal corresponding to the effective sample, Speed service, receives the speed information, confirms the moving speed of the portable terminal, and calculates the average speed of the set effective sample to generate and provide the traffic information. In this case, the location of the subscriber station may be determined through a communication network including one or more of various known networks such as a mobile communication network, a broadcast network, a wireless LAN including a Wi-Fi network, a satellite communication network, GPS signals, and also receives traffic information for a portable terminal moving on a highway from a system capable of paying a toll on a highway such as a hi-pass by wireless communication, Information may be obtained. In the portable terminal, the position can be confirmed by receiving the GPS signal, and the moving speed can be measured using a GPS signal, various known sensors, or a speed measuring device.

In this case, after extracting an identification number (MIN) of a subscriber station set as an effective sample, for example, a mobile communication network, handoff information of the subscriber, location registration information of the subscriber station, The traffic information is collected (generated) by using the coverage time of the base station service as a distance, and the traffic information providing system using the mobile communication network, specifically, Explain.

In order to generate traffic information, an effective sample must exist. In order to generate traffic information, an effective sample is a sample moving through a desired section, in order to know a sample arrival time of a desired section and sections.

1 is a block diagram of a traffic information providing system to which the present invention is applied. Referring to FIG. 1, the traffic information providing system of the present invention includes a portable terminal 10, a communication network 40, and a traffic information collection system 50 installed in a vehicle on a toll road and a freeway on a highway, .

The communication network 40 is a communication network for data transmission and information exchange between the portable terminal 10 and the traffic information collection system 50. The communication network 40 is a wireless LAN including a mobile communication network, a broadcast network, and a Wi- A wireless LAN, a satellite communication network, a communication network for receiving traffic information for a portable terminal moving on a highway from a high-pass system, and the like, . The communication network 40 can be used to confirm the location of the mobile terminal 10 moving or entering the road section for generating the traffic information as described above.

Specifically, the mobile communication network includes, for example, a plurality of base stations communicating through an air interface section, a mobile switching center (MSC) interworking with a plurality of base stations and performing an exchange function with the plurality of base stations, A Home Location Register (HLR) in which an identification number (Mobile Identification Number) of the portable terminal 10, a subscriber information and location information are stored in association with the home location register, And a location based service (LBS) server for providing location based service by checking location information. At this time, the traffic information collection system 50 requests registration of location information according to the terminal identification number (MIN) through the home location register, handoffs and paging requests, The mobile terminal 10 extracts the base transit time of the mobile terminal 10 and collects the traffic information using the base station service coverage length as a distance.

The traffic information collection system 50 includes an effective sampling device 60, a tracking device 80, an effective sample correction device 90 and a virtual machine (VM) service device 100.

The above-described apparatus may be implemented in software and included in the traffic information collection system 50.

The valid sampling apparatus 60 checks the location through the communication network 40 or receives the location information from the portable terminal 10 to determine whether the portable terminal 10 moving or entering the road section for collecting traffic information is valid Extract from the sample. For example, in the case of a broadcasting network, the portable terminal 10 may be provided with a mobile terminal 10 such as a MIN (Mobile Identification Number), an ESN (Electronic Serial Number), a CAS (Conditional Access System) number for authentication when using a satellite DMB (Digital Multimedia Broadcasting) The portable terminal 10 that transmits the location information of the portable terminal 10 via the broadcasting network and information about the portable terminal 10 that identifies the portable terminal 10, Is extracted as an effective sample. At this time, it is needless to say that the portable terminal 10 located in the road section but not moving the road is not included in the effective sample.

For example, the mobile communication network may include an effective sample extracting apparatus 60, a CDR (Call Data Record) sample extracting apparatus, and a MODAS (Mobile Density Administration System) sample extracting apparatus.

At this time, the CDR effective sampling apparatus is interlocked with IPMD (IP Mediation Device) and TIIS (Telephony & IP Integration System), and is valid for existence and movement of base station information by road using the base station information of the terminal identification number (MIN) It is a device that extracts a sample. Here, IPMD is a device that receives when CDR information is generated in the exchange 30, and TIIS is a system supporting a telephony network to provide a service combining the Internet, and provides a call waiting service and the like.

Specifically, the CDR validity sampling apparatus transmits and receives data between "CHKCDR", "CSEND", "CRECV", "Q Manager", "CSEND", and "CRECV" and "TICS" TICS "for collecting traffic information using a CDR file, a home location register, and the like to provide" MQ "(message queue) for transmission and reception, real time traffic information (RTTI) (CDR file, CDR file, destination information, source terminal information, destination terminal number, final base station information), CDR configuration information (road ID, MSCID, sampling number, effective sample number, CDR Access (Road Information), CDR Position Info (Road Position Information), Road BTS Info (Road ID, MSC ID, BSC ID, BTS ID), location information A database including the HLR Position Info (road ID, mobile phone number, base station order, input time, drop information), tracking information (TRK Position Info: road ID, mobile phone number, base station order, input time, drop information) .

In CDR validation sampling, CDR files that have been charged by IPMD are delivered to the TIIS directory in 3 minutes or 5 minutes. Then, "CSEND" reads out the sample extraction base station and the configuration information from the road file information (Road File Info), and then reads the MIN (Mobile Identification Number) corresponding to the condition in the CDR file. After obtaining the sample identification number (Serial) from the "Q manager" and storing it in the CDR location information, the home location register is inquired of the location of the corresponding sample. "CRECV" checks whether the road base station information (Road BTS Info) exists and moves by using the base station information of the returned sample. If it is not located on the corresponding road section, the mobile station 10 ) As a sample. Finally, the CDR valid sampling process is completed by registering the sample in the position information (HLR Position Info) and the tracking information (TRK Position Info) of "CRECV ".

The MODAS validity sampling device is a device that works with MODAS (Mobile Density Administration System) and TIIS and extracts an effective sample moving from the home location register (HLR) to the corresponding road based on the location inquiry information. Here, MODAS is a system for registering in the exchange when the mobile terminal 10 is handed off as a distribution management system of the mobile terminal 10.

Specifically, the MODAS validity sampling device is composed of "MGET", "MSEND", "MRECV", "Q Manager", CSEND and "MQ for sending and receiving" and "TICS" for data transmission and reception between CRECV and TICS. The MODAS file information, the MODAS position information, the road ID, the MSC ID, the BSC ID, the BTS ID, the MSC mapping information, the number of samples, A road ID, a mobile station number, a base station sequence, an input time, a drop information), tracking information (for example, a road ID, a road ID, a road ID, an MSC ID, a BSC ID and a BTS ID) A TRK Position Info, a road ID, a mobile phone number, a base station order, an input time, and Drop information).

If you look at the MODAS validation sampling process, you first transfer the files to a specific directory on a 10-minute cycle in MODAS. Then, the MODAS file is obtained in the traffic information collection system 50 every 10 minutes through the Ftp. Thereafter, the sample extraction base station and the environment information are inquired from the MODAS file information (MODAS File Info) in the "MGET", and the identification number of the sample corresponding to the condition is read (Read), then the MODAS position information . "MSEND" inquires a sample of MODAS position information, obtains a sample identification number (Serial) from "Q manager", stores it in the CDR position information, Lt; / RTI > Next, the MRECV receives the location inquiry requested sample and inquires the road BTS Info to determine whether it moves to the corresponding road. Then, for the sample moving to the corresponding road, the location information (HLR Position Info) and tracking Information (TRK Position Info), the MODAS valid sampling process is completed.

The location information (HLR Position Info) and tracking information (TRK Position Info) may be generated through an effective sampling process of at least one of the CDR valid sampling apparatus and the MODAS valid sampling apparatus. . ≪ / RTI >

The tracking device 80 is a device for tracking the position of an effective specimen extracted from the valid specimen extracting device 60 and registering the position information of the portable terminal 10 corresponding to the valid specimen in the specimen information table.

For example, in the mobile communication network, the tracking device 80 may register the location information of the terminal inquired by the LBS server in the location information and the sample information table in cooperation with the TIIS for tracking.

Specifically, the tracking device 80 is composed of "TICS" for "transmission and reception" for transmission and reception for data transmission and reception between "TSEND", "TRECV", "TSEND" and "TRECV" and "TICS". LBS IP, LBS Port, LBS Interworking Period, MIN Deletion Interval, Transmission Interval Time, and the like), and other CDR Position Information (Road ID, MSC ID, BSC ID, BTS ID) (TRK Position Info), Road BTS Info (Road ID, MSC ID, BSC ID, BTS ID), HLR Position Info (Road ID, Mobile phone number, base station order, input time, and Drop information).

In the tracking process, "TSEND" first inquires LBS setting information (LBS Config Info) for tracking, and inquires a location inquiry sample (Drop_Info (Y)) from the tracking information (TRK Position Info). (30 seconds interval, interval repetition count, etc.), and requests the home location register to inquire the location information of the corresponding sample. "TRECV" checks whether the road base station information (Road BTS Info) exists and moves using the base station information of the returned sample. Finally, the tracking process is completed by registering the sample in the position information (HLR Position Info) and registering the use of the sample in the tracking information (TRK Position Info) (Drop_Info (Y)).

For example, in the case where the portable terminal 10 periodically transmits the position information of the portable terminal 10 via the broadcasting network, together with information capable of identifying the portable terminal 10, The location information of the portable terminal 10 corresponding to the effective sample can be registered in the sample information table.

Based on the inquired location information, the effective specimen correction device 90 performs a function of measuring the velocity of each road and the section according to the velocity measurement period, and further corrects the effective specimen according to the velocity of the measured effective specimen to reset Module. The effective sample correction device 90 will be described in detail below.

The virtual machine (VM) service device 100 is a device that embeds preset section information and road information, and provides a path and a speed to a destination through a user terminal by grasping the position of the user terminal.

For example, the virtual service (VM) service apparatus 100 is interworked with the LBS and includes other BTS Info, ROAD Sec Info, Road BTS Info, A database having ROAD Sub Sec Info (segment ID, location information, destination) and road speed information (ROAD Speed Info) can be constructed. At this time, as a virtual machine service, communication conditions for each section are viewed and a preview of a route is provided through a terminal screen.

As for the process of the virtual machine service, the wizard embeds predefined section information and road information (menu file). Then, the section information or the destination IC is selected from the menu file embedded in the wizard and transmitted to the server, and the location information for searching for the route uses the base station information. Using the information received from the wizard, the speed of each section is inquired from the table and transmitted to the wizard. Then, the position of the user is obtained by using the base station information, and the path and speed to the destination are provided.

2 is a block diagram showing an effective sample correction device 90 in the traffic information collection system according to the present invention. 1 and 2, the effective sample correction device 90 includes a transmission / reception unit 91, a storage unit 93, and a control unit 95.

The transmitting and receiving unit 91 has an interface for transmitting and receiving data to and from the effective sampling device 60, the tracking device 80 and the virtual machine (VM) service module 100.

The storage unit 93 stores the road segment information (Road ID, road ID, segment ID, average speed, correction rate, number of valid samples, correction reason). At this time, the speed measurement information (Speed Config Info, speed measurement period, speed measurement time indicating information for measuring the speed of the sample within a specific time based on the speed measurement time point), road base station information (Road BTS Info; (HLR Position Info: HLR Position Info: road ID, mobile phone number, base station order, input time, and drop information) as input information. Also, the generated road speed information (road speed, road name, section name, average speed, effective sample number, correction speed, correction effective sample number, correction reason, speed measurement time), road speed information And can store base station information.

The controller 95 controls the operations of the transceiver 91 and the storage 93 as a whole.

The control unit 95 collects the sample information table from the effective sampling apparatus 60 or the tracking device 80 to calculate the moving speed of the portable terminal 10 belonging to the sample information table, The average speed in the corresponding road section is calculated for the portable terminal 10 moving in the section.

In this case, the sample information table is a table in which the position of the mobile terminal 10 extracted as an effective sample is tracked, and the position of the mobile terminal 10 can be tracked through the communication network 40 and registered in the table And may receive location information from the portable terminal 10 and register it in a table.

For example, in the process of measuring the speed of the portable terminal 10 using the mobile communication network, the controller 95 first inquires speed configuration information (Speed Config Info) for measuring the speed of each section. Thereafter, the road base station information (Road BTS Info) and the road section information (Road Sec Info) for the speed measurement by the road section are searched, and the sample corresponding to the road section is searched from the position information (HLR Position Info) Drop_Info ('O', 'S') Speed is measured using the velocity measurement algorithm for each road, then velocity is measured according to the velocity measurement period and stored as Road Speed Info And provides data to the CP (Contents Provider) or provides data to the mobile through the virtual machine service module 100. Finally, the speed is measured according to the speed measurement period, and the speed information per road section (Road Sec Speed Info), and the speed information for each road section (Road Sec Speed Info) can be transmitted to the web server and used or viewed by the administrator as statistical data.

More specifically, the control unit 95 collects information necessary for calculating the speed from the CDR (Call Data Record) valid sampling apparatus, the MODAS valid sampling apparatus or the tracking apparatus 80 through the transmission / reception unit 91, Based on the handoff information, location registration information, or paging request information of each mobile terminal 10, the base transit time and the distance between the base stations, Although the average speed can be calculated after calculating the moving speed of each portable terminal 10 using the use of the algorithm, the algorithm for calculating the average speed of the effective sample for each section of the road is not limited thereto.

The control unit 95 extracts the portable terminal 10 having a difference between the average speed in the road section and the moving speed of each mobile terminal 10 by a predetermined threshold value or more and selects the mobile terminal 10 as a target of deletion.

For example, if there is an interchange on a highway or another road that is connected to a road where traffic information is to be generated, such as an intersection, the control unit 95 extracts the decelerated vehicle, that is, the portable terminal 10 in the vehicle, and deletes the decelerated vehicle, that is, It is selected as the target sample. The control unit 95 refers to the order of the base station identification information for confirming the position of the portable terminal 10 and checks the moving direction of the portable terminal 10 on the corresponding road .

At this time, the threshold value for the speed deviation can be set to be fluid. Specifically, information on the road such as information on a road section for construction, information on a section with a bus lane, etc., or information outside the road that may affect the traffic situation such as time, day, The threshold value for the speed deviation can be set differently. For example, the threshold value can be set to a low value because the average speed of the effective sample is calculated to be lower than usual when the road traffic is often stalled.

The control unit 95 confirms the position of the portable terminal 10 corresponding to the sample to be deleted. Specifically, the control unit 95 can collect the tracking information (TRK Position Info) from the tracking module 80 to confirm the position of the portable terminal 10 corresponding to the sample to be deleted, The location information of the mobile terminal 10 can be checked.

At this time, the controller 95 periodically collects the tracking information (TRK Position Info) or the position information and periodically check the position information of the sample to be deleted. At this time, And can be flexibly adjusted by using the average speed or the average speed of the sample to be erased. As described above, the control unit 95 can calculate the moving speed of the mobile terminal 10 belonging to the sample information table, extracts only the moving speed information of the mobile terminal 10 selected as the deletion target sample, The average speed can be calculated.

Specifically, when the average speed of the mobile terminal 10 belonging to the sample information table is small or the average speed of the sample to be deleted is small, the tracking information (TRK Position Info) or position information is periodically collected and the position The period for receiving information can be set to a large value, and the ratio of size adjustment can be arbitrarily set, and can be adjusted linearly or nonlinearly. Also, the magnitude of the average speed can be calculated by comparing the mean speed of the other roads on the road, and can be calculated by comparing with the average speed of other roads.

When the control unit 95 confirms that the portable terminal 10 is moving on the same road on the road on which the traffic information is to be generated, the control unit 95 extracts the portable terminal 10 and registers it in the sample information table for the road . On the other hand, if it is confirmed that the portable terminal 10 is moving on a road other than the same road, the portable terminal 10 is extracted and removed from the effective sample.

At this time, if the location is confirmed on the same road or another road of the road on which the traffic information is to be generated, but the position is continuously confirmed at the same point for a predetermined time, the portable terminal 10 can be deleted from the effective sample.

Specifically, in the above example, the location of the portable terminal 10 is tracked, and the location is checked on the same road on the road, for example, when the portable terminal 10 temporarily decelerates the speed but moves without changing the route The mobile terminal 10 is registered in the sample information table for the road. On the other hand, when the mobile terminal 10 does not move any more, such as when moving through an interchange or exiting from a highway, moving through an intersection, or arriving at a destination, the mobile terminal 10 .

In addition, the control unit 95 divides the road into the respective sections and generates the traffic information for each of the divided sections. Therefore, in the case of the vehicle having changed the above-mentioned travel route, the control unit 95 registers in the sample information table for generating the traffic information of the changed route . At this time, the control unit 95 may extract only the portable terminal 10 that changes the route and continues to make a call, and register the extracted information in the specimen information table for generating the traffic information of the road section corresponding to the changed route.

Since the control unit 95 generates traffic information by classifying the road sections, it is common that the start and the end of the communication of the portable terminal 10 do not coincide with the road section. Therefore, when the travel path is changed, By registering in the information table, it becomes possible to secure enough effective samples to generate traffic information.

The control unit 95 finally generates the traffic information using the average speed of the corresponding road section at a specific time and then calculates the average speed of the corresponding road section by using the effective sampling apparatus 60 or the tracking module 80 In the storage unit 93. In this case, When generating the traffic information, the control unit 95 repeats the above-described process, collects necessary data, and calculates an average speed in a specific road section.

In another embodiment of the present invention, the traffic information collection system 50 can correct the effective sample using the location information received from the portable terminal 10.

Specifically, the controller 95 transmits the average speed for each road section calculated from the effective sample to the portable terminal 10, and upon receiving the position information of the portable terminal 10 from the portable terminal 10, 10 may be registered in the specimen information table of the corresponding road section where the traffic information is located or the portable terminal 10 may be deleted from the valid specimen when the portable terminal 10 is located other than the road section for which the traffic information is to be generated. At this time, the control unit 95 may transmit only the average speed of the road section where the portable terminal 10 belonging to the effective sample is located to the portable terminal 10.

For example, in the case of a broadcast network, if the mobile terminal 10 calculates the difference between the average speed and the moving speed and is below the threshold value, the mobile terminal 10 may determine a mobile identification number (MIN), an electronic serial number (ESN) The control unit 95 transmits the current location information together with information capable of identifying the portable terminal 10 such as a conditional access system (CAS) number for authentication in the use of the multimedia broadcasting through the broadcasting network, 10), and incorporates the portable terminal 10 as an effective sample of the moving section.

The control unit 95 receives the moving speed together with the current position information of the portable terminal 10 from the portable terminal 10 and confirms the position on the same road or another road on the road on which the traffic information is to be generated The mobile terminal 10 can be deleted from the effective sample if the mobile terminal 10 does not move, such as when parking or stopping.

3 is a configuration diagram showing a portable terminal 10 according to another embodiment of the present invention. 1 and 2, the portable terminal 10 includes a terminal transceiver unit 11 and a terminal controller 13, and may further include a terminal storage unit 13 at this time.

The terminal transceiver unit 11 has an interface for transmitting and receiving data to and from the traffic information collection system 50. In this embodiment, the terminal transceiver 11 receives the average speed of the road section from the traffic information collection system 50, and has an interface for transmitting the current position information or the moving speed of the portable terminal 10.

The terminal storage unit 13 is a storage for receiving and storing road section information from the traffic information collection system 50 through the terminal transceiver unit 11. [ At this time, when traffic information is provided using the mobile communication network, the road base station information can be received and further stored.

The terminal control unit 13 controls the operations of the terminal transceiver unit 11 and the terminal storage unit 13 as a whole.

The terminal control unit 13 receives the average speed of the road section from the traffic information collection system 50 through the terminal transceiver unit 11 and calculates the average speed of the road section during which the portable terminal 10 is moving, And transmits the current location information to the traffic information collection system 50 through the terminal transmission / reception unit 11 of the portable terminal 10 if the difference is less than a preset threshold value. At this time, the process of confirming the current position of the portable terminal 10 or calculating the traveling speed of the portable terminal 10 is performed by receiving the GPS signal or receiving the information from the traffic information collection system 50 as described above However, the present invention is not limited thereto, and a plurality of methods may be performed in combination. Also, the terminal control unit 13 may transmit the moving speed of the portable terminal 10 together with the current location information to the traffic information collection system 50.

In this case, as described above, the terminal control unit 13 may be implemented as a communication network capable of transmitting data upwards to transmit its location information to the traffic information collection system 50, and may be implemented in a mobile communication network, a broadcast network, A wireless LAN including a Wi-Fi network, a satellite communication network, and the like.

In another embodiment of the present invention, the portable terminal 10 may extract and track an effective sample, and then correct the effective sample.

At this time, the controller 15 may include an effective sampling module 151, a tracking module 153, and an effective sample correction module 155.

The effective sampling module 151 checks the road section information stored in the terminal storage unit 13 and the current position of the portable terminal 10 to determine whether the current portable terminal 10 is currently moving 10). In other words, it performs a function of transmitting its own position to the traffic information collection system 50 in order to register itself in the specimen information table in the corresponding road section.

The tracking module 153 periodically tracks the location of the mobile terminal 10 registered in the effective sample and transmits it to the traffic information collection system 50.

The effective specimen correction module 155 receives an average speed of the road section from the traffic information collection system 50 and determines whether the average speed of the road section during which the portable terminal 10 is moving and the current moving speed of the portable terminal 10 And transmits the current location information to the traffic information collection system 50 through the terminal transmission / reception unit 11 of the portable terminal 10 when the predetermined threshold value or less.

By directly registering the portable terminal 10 as an effective sample for generating traffic information, the reliability of the effective sample can be improved and more accurate traffic information can be provided.

4 is a flowchart illustrating an effective sample correction method in a traffic information collection system according to an embodiment of the present invention. Referring to FIGS. 1 and 4, the traffic information collection system 50 refers to the road base station information (Road BTS Info) to collect the traffic information from the starting base station and the final base station, (S101).

The traffic information collection system 50 viewed through the road segment information in step S101 inquires the sample information table and inquires about the location information of the mobile terminal 10 belonging to the sample information table (S103) .

The traffic information collection system 50 that inquires the location information of the portable terminal 10 in step S103 calculates the traveling speed of each portable terminal 10 in the road section for collecting the traffic information, The average speed in the corresponding road section of the portable terminal 10 belonging to the sample information table is calculated using the traveling speed of the terminal 10 (S105).

The traffic information collection system 50 that calculates the average speed of the mobile terminal 10 belonging to the sample information table in step S105 calculates the average speed of each mobile terminal 10 belonging to the sample information table, And compares the deviation with a predetermined threshold value (S107).

If it is determined in step S107 that the deviation between the moving speed of each mobile terminal 10 and the average speed of the mobile terminal 10 belonging to the sample information table is smaller than the threshold value, S107) The following steps are performed.

If it is determined in step S107 that the deviation between the moving speed of each mobile terminal 10 and the average speed of the mobile terminal 10 belonging to the sample information table is larger than the threshold value, The terminal 10 is selected as a deletion target sample (S109).

At this time, the threshold value for the speed deviation may be information about the road, such as information about a road section for construction, information about a section having a bus lane, or the like, which may affect traffic conditions such as time, It can be set to be flexible by using out-of-road information.

In step S109, the traffic information collection system 50 selecting the deletion target sample confirms the location of the portable terminal 10 selected as the deletion target sample (S111).

At this time, the traffic information collection system 50 periodically collects tracking information (TRK Position Info) from the tracking device 80 or receives location information from the communication network 40 to periodically check the location of the deletion target specimen, At this time, the period can be flexibly adjusted using the average speed of the mobile terminal 10 belonging to the sample information table or the average speed of the sample to be deleted.

In step S111, the traffic information collection system 50 confirms the location of the object to be deleted, and determines whether the portable terminal 10 is located on the same road as the road on which the traffic information is to be generated (S113).

If it is determined in step S113 that the target object does not move on the same road, the traffic information collection system 50 extracts the target portable terminal 10 from the effective sample (S115).

If it is determined in step S113 that the object to be deleted is moving on the same road as the road on which the traffic information is to be generated, the traffic information collection system 50 extracts the corresponding portable terminal 10, (S117).

5 is a flowchart illustrating an effective sample correction method according to another embodiment of the present invention. 1, 4 and 5, since steps S121 to S131 are the same as steps S101 to S111 in FIG. 3, description thereof will be omitted.

In step S131, the traffic information collection system 50 confirms the location of the object to be deleted, and determines whether the portable terminal 10 is located on the same road as the road on which the traffic information is to be generated (S133).

If it is determined in step S133 that the object to be deleted is moving on the same road as the road on which the traffic information is to be generated, the traffic information collection system 50 extracts the corresponding portable terminal 10, (S1357).

If it is determined in step S133 that the object to be deleted does not move on the same road, the traffic information collection system 50 determines whether the portable terminal 10 moves on another road (S137).

If it is determined in step S137 that the object to be deleted does not move on the same road as the road on which the traffic information is to be generated, The mobile terminal 50 extracts the mobile terminal 10 and deletes it from the sample information table (S139).

If it is determined in step S137 that the object to be deleted is moving on a road other than the road on the same line of the road on which the traffic information is to be generated, the traffic information collection system 50 extracts the corresponding portable terminal 10 And registers it in a specimen information table for generating traffic information on another road (S141).

At this time, the traffic information collection system 50 may extract only the portable terminal 10 that changes the route and continues the call, and registers the extracted information in the specimen information table for generating the traffic information of the road section corresponding to the changed route .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be appreciated by those skilled in the art that numerous changes and modifications can be made to the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

According to the present invention, a separate apparatus is not required as compared with the existing system for providing traffic information, thereby minimizing the additional cost incurred. Particularly, considering the trend of increasing number of users moving by using a vehicle, the effective sample correction scheme in the traffic information collection system of the present invention will not be used in a small amount.

10: portable terminal 11: terminal transmission /
13: terminal storage unit 15:
40: communication network 50: traffic information collection system
60: Effective sampling device 80: Tracking device
90: Effective sample correcting device 91: Transmitting /
93: storage unit 95: control unit
100: Virtual Machine Service Unit 151: Valid Sampling Module
153: tracking module 155: effective sample correction module

Claims (23)

A valid sample extracting device for registering a portable terminal whose location is confirmed in a road section for collecting traffic information or a portable terminal moving to the road section in a sample information table;
A tracking device for periodically checking location information of the mobile terminal registered in the sample information table and registering the location information in the sample information table;
A moving speed of the portable terminal belonging to the sample information table is calculated to calculate an average speed and a mobile terminal having a deviation of a difference between the moving speed and the average speed by a predetermined threshold or more is extracted, A valid sample corrector for registering the deletion target sample in the sample information table upon confirming that the location information of the sample to be deleted is confirmed at a predetermined period and that the road segment is on the same line as the road segment;
And a virtual machine service device for providing traffic information of the road section using the extracted average value of the portable terminals,
Wherein the valid sample corrector adjusts the period using the average speed of the mobile terminal belonging to the sample information table or the average speed of the sample to be deleted. A transmission / reception unit for data transmission / reception;
A storage unit for storing road section information;
Calculating a moving speed in a road section for collecting traffic information of each portable terminal belonging to the specimen information table to calculate an average speed, and calculating a moving speed of the mobile terminal in which the deviation between the moving speed and the average speed is greater than or equal to a predetermined threshold value The control unit registers the deletion target sample in the sample information table by checking the position of the deletion target sample at a predetermined period and confirming that the road segment is on the same line as the road segment, Lt; / RTI >
Wherein the control unit adjusts the period using the average speed of the portable terminal belonging to the sample information table or the average speed of the sample to be deleted. delete 3. The method of claim 2,
Wherein the control unit receives a CDR (call data record) or handoff information of the portable terminal from a communication network to confirm the position of the portable terminal. 3. The method of claim 2,
Wherein the control unit receives travel information of the portable terminal from a system capable of paying a toll on a highway by wireless communication, and confirms the position of the portable terminal. delete 3. The method of claim 2,
Wherein the control unit sets the threshold using information on each road or information on the outside of each road. 3. The method of claim 2,
Wherein the controller extracts a mobile terminal having no positional change for a predetermined period of time from the sample to be deleted and deletes the mobile terminal from the sample information table. 3. The method of claim 2,
Wherein the control unit extracts a portable terminal moving on a road other than the road on which the traffic information is to be generated from the deletion object sample and registers the portable terminal in the sample information table for the different road section. 10. The method of claim 9,
Wherein the control unit extracts only portable terminals that have continuously carried out calls among the portable terminals moving on the other road and registers them in the sample information table for the other road sections. 3. The method of claim 2,
Wherein the control unit deletes the portable terminal registered in the sample information table after generating the traffic information using the average speed of the road segment. delete delete delete A calculating step of calculating a moving speed of a road section in which the traffic information collection system collects traffic information of each portable terminal belonging to the specimen information table to calculate an average speed;
Wherein the traffic information collection system extracts a mobile terminal having a difference between the moving speed and the average speed by a predetermined threshold value and selects the portable terminal as a deletion target;
The traffic information collection system checks the position of the deletion object sample at a predetermined period and confirms that the road section on the same line as the road section is moved, registers the deletion object sample in the sample information table ≪ / RTI >
Wherein the traffic information collection system adjusts the period using the average speed of the mobile terminal belonging to the sample information table or the average speed of the sample to be deleted in the first registration step. delete delete 16. The method of claim 15,
Wherein the traffic information collection system sets the threshold using information on each road or information on the outside of each road. 16. The method of claim 15,
Wherein the traffic information collection system extracts a portable terminal having no location change for a predetermined period of time from the sample to be deleted and deletes the portable terminal from the sample information table;
Further comprising the steps of: 16. The method of claim 15,
A second registration step in which the traffic information collection system extracts a portable terminal moving on a road other than the road on which the traffic information is to be generated from the deletion object sample and registers the portable terminal in a sample information table for the other road section;
Further comprising the steps of: 21. The method according to claim 20,
Wherein the traffic information collection system extracts only a portable terminal that has continuously performed a call among the portable terminals entering the other roads and registers the extracted portable terminals in the sample information table for the other road sections. delete delete

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