KR20100001621A - Apparatus and method for serving traffic information - Google Patents

Abstract

PURPOSE: An apparatus and method for serving traffic information is provided to service the optimized traffic information when the traffic information is not received. CONSTITUTION: The communication unit(21) receives a message the real-time traffic information broadcasting system signal. The data processor(23) processes TPEG data among the demodulated traffic information broadcasting system signal. The navigation engine part(27) establishes the running route to the destination in the location of origination established through GPS. The database(33) stores the specific traffic information. When the real-time traffic information broadcasting system signal is not received. The controller(31) uses the traffic information saved in database.

Description

Traffic information service apparatus and method {APPARATUS AND METHOD FOR SERVING TRAFFIC INFORMATION}

The present invention relates to a traffic information service apparatus and method, and more particularly, to a traffic information service apparatus and method for servicing optimized traffic information.

In general, the Transport Protocol Experts Group (TPEG) is a standard developed for transmitting traffic and traveler information using data streams.

The TPEG data can be transmitted through various channels such as the Internet and digital broadcasting, but it is embodied and commercialized as a kind of data broadcasting mainly through mobile multimedia broadcasting (DMB: Digital Multimedia Broadcasting, DAB: Digital Audio Broadcasting) at home and abroad. .

TPEG data includes service and network information (SNI) (abbreviated as "SNI"), communication status information (CTT: congestion and travel time information, hereinafter abbreviated as "CTT"), and safe driving information. (SDI: Safe Drive Information. Hereinafter abbreviated as "SDI"), News Service (NWS: NeWS information. Hereinafter, abbreviated as "NWS"), Point of Interest Service (POI: hereinafter referred to as "POI") D), road traffic status information (RTM: Road Traffic Message (hereinafter, abbreviated as "RTM")), and the like, and are available through data broadcasting channels (TDC, MOT, etc.) of digital broadcasting (DMB). Do.

Thus, as shown in FIG. 1, the TPEG data generated by the TPEG generator 11 is serviced through the DMB (DAB), DARC, DVB, and the Internet block 13, and through the service, the TPEG decoder 15 receives the TPEG data. And output in text, graphics, navigation, speech, and the like.

When the traffic information is serviced using the aforementioned TPEG data, the traffic information is received through a DMB receiver. In general, data is repeatedly transmitted with an update period based on a predetermined period (for example, 5 minutes) or If there is an updated traffic information, the data is transmitted repeatedly including the updated content.

The received TPEG data is used to indicate the optimal driving route through the navigation system.

However, such a conventional traffic information service device must be able to continuously receive a real-time traffic information service by TPEG data.

Therefore, the weak electric field situation in which the situation traffic information is not received smoothly due to various areas such as the area where the broadcast is not received, the terrain, the change of the reception frequency of the same broadcast due to the handover in MFN (Multi Frequency Network), If a single tuner is used, it is impossible to set the optimal driving route reflecting the traffic situation due to the inability to receive real-time broadcasting information in the case of watching a channel that does not support the traffic information service, or the previously received traffic information is completed. If it is not possible to set the optimal driving route reflecting the traffic situation, or if it is not possible to receive the appropriate traffic information at the update time when the new update of traffic information is repeatedly performed based on a certain time period, it is received and stored. Traffic information is optimized by not reflecting current traffic conditions. This is not a travel path which could guide may occur.

In addition, even if the traffic information is received in real time, the traffic information normally received reflects the current traffic situation, so even if the user has set a route reflecting the current traffic situation, it is from the current starting point to the final destination. The problem may arise that it does not adequately reflect the future traffic conditions due to the time it takes to reach.

The present invention has been made in view of the above problems, and an object thereof is to provide a traffic information service apparatus and method capable of servicing optimized traffic information.

It is another object of the present invention to provide a traffic information service apparatus and method for making optimal traffic information service even in a situation in which traffic information cannot be received by making a database of traffic information such as driving patterns and speeds by date and time. have.

It is still another object of the present invention to provide a traffic information service apparatus and method capable of servicing road driving routes optimized for actual road conditions by allowing traffic information to be serviced as a database and serving as averaged traffic information.

Traffic information service apparatus according to an aspect of the present invention for achieving the above object is a communication unit for receiving a real-time traffic broadcast signal; A data processor for demodulating the traffic broadcast signal and processing TPEG data among the demodulated traffic broadcast signals; A navigation engine unit configured to set a driving route from the position of the starting point set through the GPS to the destination; A database unit configured to database specific traffic information among the TPEG data; A control unit for controlling to service the driving route with traffic information that replaces real-time traffic broadcasting by using the database-based traffic information when the reception of the real-time traffic broadcasting signal is poor; And a display unit for displaying screen data according to traffic information under the control of the controller.

Traffic information service apparatus according to another aspect of the present invention includes a communication unit for receiving a real-time traffic broadcast signal; A data processor for demodulating the traffic broadcast signal and processing TPEG data among the demodulated traffic broadcast signals; A database unit configured to database specific traffic information among the TPEG data; A control unit for controlling an optimal route using the database-based traffic information according to whether the real-time traffic broadcasting signal is received; And a display unit which displays screen data according to traffic information under the control of the controller.

According to another aspect of the present invention, there is provided a traffic information service method comprising: databaseting specific traffic information among TPEG data received through real-time traffic broadcasting, and serving real-time traffic information using the specific traffic information; And serving as traffic information that replaces the real-time traffic information by using the specific traffic information databased according to the traffic broadcasting reception state among the real-time traffic information service.

According to the above-mentioned problem solving means, the present invention makes a database of CTT information and RTM information of TPEG data of traffic information by date and time, and services the data trafficized by the database in a situation where no traffic information is received. It is effective to service optimized traffic information.

In addition, the driving route log provided through navigation and the driving pattern and speed generated during the movement of the driving route are databased by date and time to reflect the conditions most similar to the actual road situation even when no traffic information is received. It is effective to search for and service an optimized driving route.

In addition, even in a situation where it is impossible to receive the traffic information, by using the database traffic information to service the traffic information, there is an effect of increasing the reliability of the user.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail, focusing on the parts necessary to understand the operation and action according to the present invention.

2 is a block diagram of a traffic information service apparatus according to an embodiment of the present invention. The traffic information service apparatus 100 may be a terminal capable of receiving a traffic broadcast, and the traffic broadcast may be a digital broadcast (DMB) for transmitting traffic information as a data stream.

As shown in FIG. 2, the traffic information service apparatus 100 of the present invention includes a communication unit 21, a data processing unit 23, and a GPS (GPS: denoted as "GPS"). 25, a navigation engine unit 27, a storage unit 29, a control unit 31, a database unit 33, and a display unit 35.

First, the communication unit 21 receives a traffic broadcast signal. Here, the communication unit 21 low noise amplifies the RF signal of the received traffic broadcasting signal and converts the frequency down.

The data processor 23 demodulates and decodes the received traffic broadcast signal, and demodulates and decodes the TPEG data from the decoded traffic broadcast signal to process the TPEG data. In addition, the data processor 23 may include a demodulator 23a for demodulating and decoding a received traffic broadcast signal, and a TPEG decoder 23b for decoding TPEG data among the demodulated traffic broadcast signals. Here, the TPEG decoder 23b includes a CTT decoder (not shown) for decoding CTT information among TPEG data, and an RTM decoder (not shown) for decoding RTM information among the TPEG data.

The GPS 25 receives a signal transmitted from a GPS satellite to determine the location of the traffic information service apparatus 100.

The navigation engine unit 27 sets the traveling route from the set starting point or the current point to the final destination.

The storage unit 29 temporarily stores the demodulated TPEG data, and stores the operation program of the navigation engine unit 27 and the programs for the traffic information service according to the present invention.

The controller 40 controls the overall operation of the traffic information service according to the present invention.

In addition, the control unit 40 controls to service traffic information by reflecting specific traffic information of the demodulated TPEG data in real time traffic information. In addition, the control unit 40 makes the specific traffic information into a database so that when the reception of the traffic broadcast of the real-time traffic information is not smooth or the navigation engine 27 sets the optimum route from the starting point to the destination, the databaseized traffic information is used. Control to serve the optimized traffic information by using. Herein, the operation and action for setting the optimum route reflecting the internal configuration of the controller 40 and the optimized traffic information will be described in detail below.

The database unit 31 databases specific traffic information among the TPEG data. Here, the database unit 31 continuously uses the CTT and RTM information of the TPEG data, and the average traffic situation information of the road transmitted to the CTT item, that is, the congestion degree and the section of the current time zone divided into the items for each time zone, date, and monthly. Accidents, obstacles (e.g. people, vehicles, animals), traffic activities (e.g., meetings, events), road conditions (e.g., information sent to the CTT DB 31a and RTM items) Road rupture, alteration of road marking), traffic network performance / efficiency (e.g. lag, traffic flow, speed), traffic network conditions (e.g. point and affected length), facility performance / efficiency, moving hazards (e.g., road vehicles) , An animal, a person, etc.), an alarm posture (eg, a description of a safety-related situation), public transportation information, visibility, weather, detour information, etc. are respectively databased in the RTM DB 31b. At this time, since the CTT information transmits the average traffic status information of the roads according to time zones, it is preferable to accumulate previously stored values and newly received values in an average value form in order to increase the reliability of the values stored in the CTT DB 31a.

On the other hand, since the RTM information indicates various events occurring in the corresponding section, it is desirable to have a database in the form of occurrence time-end time for each location where these events occurred.

The display unit 33 displays screen data according to traffic information under the control of the controller 40. The display unit 33 also displays messages generated during program execution. In addition, the display unit 33 may include an LCD controller, a memory capable of storing image data, and an LCD display device. When the display unit 33 is implemented by using a touch screen method, the key input unit (not shown) and the display unit 33 may be input units.

3 is a diagram illustrating an internal configuration of a control unit in FIG. 2.

As shown in FIG. 3, the control unit 40 includes an extraction unit 41, a broadcasting state checking unit 43, a traffic information processing unit 45, and a database manager 47.

The extractor 41 extracts specific traffic information from the TPEG data decoded from the data processor 23. The extractor 41 may include a first extractor 41a that extracts CTT information from the decoded TPEG data, and a second extractor 41b that extracts the RTM information.

The broadcast status checking unit 43 checks whether TPEG data is received from a specific channel of traffic broadcasting in real time.

The traffic information processing unit 45 processes the real-time traffic information according to whether the broadcast status check unit 43 receives the traffic broadcast or processes the alternative traffic information of the real-time traffic information. That is, the traffic information processing unit 45 controls to service the optimal traffic information by using the received traffic information when the traffic broadcast can be received. However, the traffic information processing unit 45 controls to service the alternative traffic information by using the database-based traffic information when the reception strength of the traffic broadcast is weak or when the reception is impossible. At this time, the traffic information processing unit 45 may receive the same traffic information through another channel by retuning if the reception strength is weak or the reception is not possible, but preferably, the user retunates according to a user's selection, Service alternate traffic information.

In addition, the traffic information processing unit 45 may not receive traffic broadcasts or set a driving route from a starting point to a destination, or a situation in which real-time traffic information is not reflected during a process of setting a driving route or a normal driving speed (eg, a downtown area). When moving from the point of origin to a section of 40km, 70km on high speed, and 90km on highway, the specific traffic information (CTT information and RTM), which is databased in the section where traffic information of future time should be reflected instead of current traffic information due to elapsed time when moving. Information) to service the final driving route to the destination.

That is, by using the average congestion degree, average speed, average moving speed information stored in the CTT DB (31a) as a weight for setting the final driving route, road information such as road construction, accident, assembly, etc. stored in the RTM DB (31b) Is added as a weight for setting the final driving route.

The database manager 47 continuously stores the data in the database 31 using specific traffic information (for example, CTT information and RTM information) extracted through the extractor 41 under the control of the traffic information processor 45. Update traffic information.

4 is an exemplary view for explaining the structure of TPEG data according to the present invention.

As shown in FIG. 4, the TPEG data has a frame structure as shown in FIGS. 4A to 4D. Among them, the CTT information and the RTM information are transmitted through a component data field in a service component frame as shown in (d) of FIG. 4.

First, the structure of the TPEG data including the CTT information will be described. As shown in FIG. 5, the components of the CTT information include a message management container element, an application status container element, and a TPEG location container element. (TPEG-Location Container).

The message management container element consists of a message (or information) identifier (MID), version information (VER), date and time information.

This message management container element is used to manage the information received at the TPEG decoder 23b. In this case, the start time and the end time, the message erasing time, and the schedule information are not transmitted with respect to the congestion traffic information among the CTT information. This is because the current state of communication is important.

The application state container element includes information such as the degree of communication for each section. The transmitted information is information of an average link speed, an interval travel time, an interval delay, and a congestion type. In addition, additional information related to congestion may be transmitted depending on the traffic broadcasting service provider.

Since the CTT information is location dependent, the TPEG location container includes location information on the received CTT information. At this time, the location information includes a node link ID or latitude / longitude information based on WGS84.

The CTT information is databased in the CTT DB 31a with information on the congestion degree of the current time zone, the average speed for each section, the average delay time, and the travel time, which are divided into the respective time zones, dates, and monthly items.

On the other hand, the RTM information has 0001 as an identifier, and provides road users with events and status information on the road network such as accidents, obstacles, traffic activities, road conditions, traffic network performance / efficiency and status, hazards in motion, visibility, weather, detour information, etc. It is intended to provide information on traffic facilities and situations affecting the use of roads and roads.

Next, referring to the structure of the TPEG data including the RTM information, as shown in FIG. 6, the components of the RTM information include a message management container element, an application event container element, and a TPEG location container. It consists of elements (TPEG-Location Container).

The message management container element is responsible for updating and deleting existing information according to the received information. For this purpose, the message (or information) identifier, version information start time and end time, message erasing time, message occurrence time, time schedule information, accident severity (eg, classified into five levels), and service reliability information are included.

The application event container represents an event generated using a sequential encoding method according to a hierarchical structure approach. That is, the road traffic information is provided to the users in an independent language (or word) using a standard language and grammar coded in a short form.

For example, road traffic information is classified into Level 1 to Level 3, such as accidents, obstacles (eg, people, vehicles, animals), traffic activities (eg, meetings, events), road conditions (eg, road rupture, alteration of road marking). ), Network performance / efficiency (e.g., latencies, traffic flows, speed), traffic network conditions (e.g., points and affected lengths), facility performance / efficiency, hazards on the go (e.g. vehicles on roads, animals, people, etc.), Receive alert conditions (eg, a description of a safety related situation), public transportation information, visibility, weather, detour information, and the like.

In other words, if you want to service the information "refractive freight vehicle has overturned on low speed lane", Level 1: Accident-> Level 2: low speed lane-> Level 2: vehicle-> Level 3: overturn-> Level 3: Large freight vehicle-> Level 4: TPEG decoder 23b combines the information received in the form of articulated vehicle to service road traffic information to the user.

The TPEG location container element includes location information of each received information because road traffic information provided through the RTM information is location dependent. The location information includes the node link ID or the latitude / longitude information based on WGS84 directly.

The CTT information and the RTM information of the TPEG data can be immediately expressed by the navigation service, and are databaseized and stored in the database unit 31.

7 is an exemplary view showing an example of the hierarchical structure of the CTT DB according to the present invention, Figure 8 is an exemplary view showing an example of the hierarchical structure of the RTM DB according to the present invention, Figure 9 is an RTM DB according to the present invention An example diagram showing a deletion message structure for deleting a list of.

As shown in FIG. 7, the value in the lowest hierarchy of the hierarchical structure of the CTT DB 31a, for example, defaults based on the TPEG-CTT standard (eg, delay: 4, congestion: 3, Congestion: 2, Smooth: 1) The value of each item is determined by continuously averaging based on the cumulative number of times based on the newly entered value and the existing value.

At this time, a value below the decimal point may be generated in the process of taking the average, which is not defined in the TPEG standard, but it is preferable to keep the value as it is to serve more accurate traffic information. The number below the decimal point may vary depending on the situation of the system.

On the other hand, in the case of the RTM DB (31b), as shown in Figure 8 based on the application event information extracted from the RTM information, the version of the message management container, start-end time, message generation time, message deletion time, time schedule information, by event It is configured using the value of the TPEG location gesture with weight and location information.

In the case of the CTT DB 31a, the number of node-links provided by the standard and the service provider is limited, but in the case of the RTM, the database manager 47 determines the version of the message, the start-end time, the message occurrence time, and the message. Proper deletion and updating of the list on the RTM DB 31b is performed based on the deletion time and time schedule information.

In addition, the RTM DB 31b deletes the RTM information from the RTM DB 31b through the database manager 47 even when requested to remove the RTM information of the corresponding ID in the form of a deletion message as shown in FIG. 9.

On the other hand, the driving route setting using the navigation function uses a search method of the optimum driving route by a heuristic graph search algorithm. At this time, the optimal driving route from the starting point to the destination uses Equation 1 below.

은 출발지에서 목적지까지의 최소주행 경로,

은 출발지에서 목적지까지의 휴리스틱 평가함수를 의미한다.here,

Is the minimum driving route from the origin to the destination,

Means the heuristic evaluation function from the origin to the destination.

This heuristic evaluation function is expressed as a weighted sum of various factors that are considered to affect driving path movement and setting. In the present invention, the CTT according to the positions of predetermined destinations searched on the graph Each of the evaluation items given on the DB 31a and the RTM DB 31b, i.e., the average speed, average passage time, average delay time, and congestion type, multiplied by weight for each item based on the corresponding time and location, and each It may be set to the sum of weights according to the RTM application message items.

For example, the evaluation function may have the form of Equation 2 as follows.

Average Speed Weight * Average Speed + Average Pass Time Weight * Average Pass Time + Average Interval Weight * Average Pass Time + Corresponding RTM Weight * RTM Message Severity + ...)

In this case, the average speed, average interval time, average interval delay time, and congestion type information transmitted through CTT information generally represent the average type of traffic rather than information based on a specific time, and thus the hierarchical structure of RTM information. The item has a larger weight value.

Therefore, the average value of the weights of the CTT information and the RTM information may be increased or decreased according to the weight value of the heuristic factor applied in the system that does not consider the TPEG reception function or the optimal driving path implementation algorithm of the navigation function for the navigation path search only. For example, the priority is described using only the highest layer of the RTM information and the CTT information as shown in Table 1 below.

Priority Parameter position Item One RTM Accident / Severity 1 2 RTM Accident / Severity 2 3 RTM Accident / Severity 3 4 RTM Accident / Severity 4 5 RTM Accident / Severity 5 6 RTM obstacle 7 RTM Road conditions 8 CTT Section Average Speed 9 CTT Section passing time 10 CTT Section Delay Time 11 CTT Congestion Type . ... ... . ... ...

10A and 10B are flowcharts illustrating a traffic information service method according to an exemplary embodiment of the present invention.

10A and 10B, a user first sets a specific channel of a traffic broadcast to be serviced by manipulating a key provided in a traffic information service device (eg, a traffic information service terminal) (S110).

Then, the control unit 40 receives TPEG data according to traffic information from a specific channel set by key manipulation, makes a database of specific traffic information (CTT information and RTM information) among the TPEG data, and services real-time traffic information ( S120).

Herein, a process of databaseting specific traffic information and a process of serving real-time traffic information will be described in detail with reference to FIG. 10B.

The controller 40 extracts specific traffic information (CCT information and RTM information) from the received TPEG data (S121).

Next, the controller 40 weights the traffic information by using the extracted specific traffic information and makes a database (S123).

In this case, if the extracted specific traffic information is information for requesting deletion of the existing databaseized traffic information, the corresponding traffic information is deleted.

Then, the control unit 40 services the real-time traffic information using the weighted specific traffic information (S125).

Thereafter, the controller 40 needs to service traffic information received in real time, and determines whether the traffic broadcast reception state is good (S130).

As a result of the determination, if the traffic broadcast reception state is good, the control unit 40 returns to step S120 described above and repeatedly performs the traffic broadcast reception service until the traffic broadcast reception state is poor.

However, if it is determined that the traffic broadcast reception state is bad, the control unit 40 services the alternative traffic information using the specific traffic information databased on a time / date / month basis (S140). In this case, the traffic information service may service an optimal driving route from the starting point to the destination, and may serve the traffic information using simple CTT information and RTT information.

Of course, in another embodiment, the controller 40 may be configured to search for the optimal driving route by assigning weights to the items in the manner described above when searching for the driving route after the database is made without weighting specific traffic information. Of course.

Therefore, the traffic information service apparatus and method according to the present invention stores the CTT information and the RTM information of the TPEG information of the traffic broadcasting on the DB to use the statistical information on the DB in real time when the real-time traffic information cannot be received smoothly. Service traffic information (eg, optimal driving route) optimized as traffic information that can replace traffic information.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

1 is an exemplary diagram for explaining a general TPGE service.

2 is a block diagram of a traffic information service apparatus according to an embodiment of the present invention.

3 is a diagram illustrating an internal configuration of a control unit in FIG. 2.

4 is an exemplary diagram for explaining the structure of TPEG data according to the present invention;

5 is an exemplary diagram for explaining a structure of TPEG data including CTT information according to the present invention.

6 is an exemplary diagram for explaining a structure of TPEG data including RTM information according to the present invention.

7 is an exemplary view showing an example of a hierarchical structure of the CTT DB according to the present invention.

8 is an exemplary view showing an example showing a hierarchical structure of the RTM DB according to the present invention.

9 is an exemplary view showing a deletion message structure for deleting a list of RTM DB according to the present invention.

10A and 10B are flowcharts illustrating a traffic information service method according to an embodiment of the present invention.

Claims (19)

Communication unit for receiving a real-time traffic broadcast signal; A data processor for demodulating the traffic broadcast signal and processing TPEG data among the demodulated traffic broadcast signals; A navigation engine unit configured to set a driving route from the position of the starting point set through the GPS to the destination; A database unit configured to database specific traffic information among the TPEG data; A control unit for controlling to service the driving route with traffic information that replaces real-time traffic broadcasting by using the database-based traffic information when the reception of the real-time traffic broadcasting signal is poor; And A display unit for displaying the screen data according to the traffic information under the control of the controller Traffic information service device comprising a. The method of claim 1, wherein the data processing unit, A demodulator for decoding the traffic broadcast signal; And TPEG decoder for decoding TPEG data among the decoded traffic broadcasting signals Traffic information service device comprising a. The method of claim 2, wherein the TPEG decoder, A Citi decoder to decode CTT information of the TPEG data; And ALTIM decoder which decodes road traffic condition (RTM) information among the TPEG data Traffic information service device comprising a. The method of claim 1, wherein the database unit, A Citi database for converting CTT information into a database; And ALTI Database to Database Road Traffic Status (RTM) Information Traffic information service device comprising a. The method of claim 4, wherein the city database, Traffic information service device characterized in that the database is formed by information of the congestion degree of the current time zone, the average speed for each section, the average section delay time and the travel time divided into each time zone, date, month. The method of claim 4, wherein the ALTI database, Traffic information service device characterized in that the database of information on the road accident, the seriousness of the accident, the assembly and construction. The method of claim 1, wherein the database unit, Traffic information service device characterized in that the database of the specific traffic information as an average value. The method of claim 1, wherein the control unit, An extraction unit for extracting specific traffic information from the decoded TPEG data; A database manager for managing the database; And Traffic information processing unit for servicing the replacement traffic information of the real-time traffic information using the database-based traffic information, when the reception of the real-time traffic broadcast signal is poor Traffic information service device comprising a. The method of claim 8, wherein the traffic information processing unit, And setting the driving route from the starting point to the destination, if the reception of the traffic broadcasting signal is impossible, servicing the driving route weighted to the database-specific traffic information. The method of claim 9, wherein the driving route, Traffic information service device characterized in that the search using a heuristic evaluation function expressed by the sum of the weight and the product. The method of claim 8, wherein the control unit, The traffic information service device, characterized in that it further comprises a broadcast status check unit for checking whether a traffic broadcast signal is received in real time. The method of claim 8, wherein the extraction unit, A first extracting unit extracting CTT information from the decoded TPEG data; And A second extraction unit for extracting road traffic condition (RTM) information from the decoded TPEG data Traffic information service device comprising a. Communication unit for receiving a real-time traffic broadcast signal; A data processor for demodulating the traffic broadcast signal and processing TPEG data among the demodulated traffic broadcast signals; A database unit configured to database specific traffic information among the TPEG data; A control unit for controlling traffic information using the database-based traffic information according to whether the real-time traffic broadcasting signal is received; And A display unit for displaying the screen data according to the traffic information under the control of the controller Traffic information service device comprising a. Databaseting specific traffic information among TPEG data received through real-time traffic broadcasting, and serving real-time traffic information using the specific traffic information; And Among the real-time traffic information service, the traffic information to replace the real-time traffic information by using the specific traffic information in the database according to the traffic broadcasting reception state Traffic information service method comprising a. The method of claim 14, wherein the serving of the traffic information comprises: Determining whether the traffic broadcasting reception state is good; If the traffic broadcasting reception state is good as a result of the determination, providing traffic information according to the received real time traffic broadcasting; And If the traffic broadcasting reception state is poor as a result of the determination, providing alternative traffic information by using the specific traffic information databased; Traffic information service method comprising a. The method of claim 14, wherein the real-time traffic information service, Extracting specific traffic information from the received TPEG data; Weighting corresponding traffic information of the extracted specific traffic information to data base; And Real-time traffic information service in consideration of the databased traffic information; Traffic information service method comprising a. The traffic information service method of claim 16, wherein when the extracted specific traffic information requests deletion of the existing databaseized traffic information, the traffic information is deleted. 17. The method of claim 16, wherein the traffic information to replace the real-time traffic information, And a service route searched using a heuristic evaluation function expressed as a product of the sum of the weights. The method of claim 14, wherein the specific traffic information, Traffic information service method characterized in that the communication status (CTT) information and road traffic status (RTM) information.

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