KR100898177B1 - System and Method for providing traffic information - Google Patents

Abstract

The present invention relates to a traffic information providing apparatus and method for providing traffic information data according to the importance of each road, the apparatus for providing traffic information according to the importance of each road is a real-time traffic information to collect real-time traffic information data for each road Collector, the traffic information history data generation unit to generate the traffic information history by sorting the real-time traffic information data by road according to the generation time among the real-time traffic information data for each road, the real-time traffic information for each road included in the traffic information history data The traffic information priority setting unit and the receiving terminal are configured to generate a traffic information history data table by sorting the data according to the day of the week, and to set the importance of each road by comparing the traffic information history data table with the currently provided real-time traffic information data. Road part with high importance by road It comprises parts of the traffic information transmitted preferentially delivered to the real-time traffic information data to be currently available.

Traffic, Congestion, Importance, Speed

Description

Traffic information providing apparatus and method thereof {System and Method for providing traffic information}

The present invention relates to an apparatus for providing traffic information and a method thereof. More specifically, the present invention relates to a traffic information providing apparatus and method for providing traffic information data according to the importance of each road.

The present invention is derived from research conducted as a part of IT new growth engine core technology development project of Ministry of Information and Communication and Korea Electronics and Telecommunications Research Institute [Task Management Number: 2005-S-115-02, Title: Development of DMB-based telematics platform technology] ].

With the development of wireless communication technology, automobiles have been developed through communication systems such as Wireless LAN (WLAN), Code Division Multiple Access (CDMA), Wireless Broadband Internet (WiBro), High Speed Downlink Packet Access (HSDPA), and Digital Multimedia Broadcasting (DMB). As high-quality video, audio, and data services are possible even in high-speed moving bodies, such as traffic information providing service in a moving vehicle.

Such traffic information service provides traffic information data such as Congestion and Travel Time (CCT), Road Event Information (REI), and safe driving information using the international standard, Transport Protocol Expert Group (TPEG) protocol. (SDI: Safety Drive Information), News (News) information, etc. are provided to the receiving terminal.

In general, the traffic information providing service is a traffic information providing server collects traffic information data of the entire road network, and the collected traffic information data through a mobile communication network, a wireless communication network or a digital multimedia broadcasting (DMB) network, etc. Provided to the receiving terminal.

In particular, the congestion information (CTT) of the traffic information data includes a specific link ID (ID) and vehicle speed information corresponding to the link ID. However, in the case of the existing traffic information service, all the congestion information (CTT) corresponding to the entire link ID was provided to the receiving terminal at once.

However, in general, the speed information of each road has a certain pattern according to time and place. For example, certain roads have different traffic depending on weekdays and holidays, and even on weekdays, traffic volume varies depending on the time of day, such as departure / exit time. Therefore, when the congestion information of the entire road is transmitted at the same time as in the existing traffic information service, it is difficult to distinguish important information.

Therefore, there is a need for a traffic information providing service that preferentially provides high priority traffic information by measuring the amount of change in vehicle speed for each road by date and time.

Accordingly, an aspect of the present invention is to provide a traffic information providing apparatus and method for transmitting traffic information data according to the priority of traffic information for each road in providing traffic information to a receiving terminal.

In order to achieve the above-described problem, the apparatus for providing traffic information according to the importance of each road according to the characteristics of the present invention is a real-time traffic information collection unit for collecting real-time traffic information data for each road, the real-time traffic information for each road Traffic information history data generation unit for generating the traffic information history data by sorting the real-time traffic information data by road according to the generation time among the data, sorting the real-time traffic information data for each road included in the traffic information history data according to the day of the week To generate a traffic information history data table, and compare the traffic information history data table with the currently provided real-time traffic information data to set the importance of each road and set the importance of each road to the receiving terminal. Above current from high degree And a traffic information transmitter for preferentially transmitting real-time traffic information data to be provided.

In addition, the method for providing traffic information according to the importance of each road according to another feature of the present invention comprises the steps of generating a plurality of traffic information history data by sorting the real-time traffic information data for each road according to the generation time, the traffic information history Arranging the real-time traffic information for each road included in the data to have the same day characteristic, and generating a plurality of traffic information history data tables by sorting the sorted real-time traffic information for each road by time, the traffic information Computing the average speed and standard deviation for each time for each historical data table to generate a statistical analysis result table for each road, by comparing and analyzing the real-time traffic information data for each road to be provided at the present time and the information of the statistical analysis result table for each road Creating and receiving road-level importance And transmitting, to a terminal, the real-time traffic information data to be currently provided from a road having a high importance for each road.

According to this embodiment of the present invention, it is possible to preferentially transmit traffic information data of a road having a high importance among traffic information data of all roads.

Therefore, there is an effect of increasing the probability of receiving traffic information data of the receiving terminal on the road of high importance.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, the terms “… unit”, “… unit”, “module”, etc. described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. have.

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

1 is a block diagram of a traffic information providing apparatus for providing traffic information according to the priority of information according to an embodiment of the present invention.

As shown in FIG. 1, the apparatus for providing traffic information according to the priority of the information includes a real-time traffic information data collector 100, a traffic information history data generator 200, a first database 300, and a traffic. An information priority setting unit 400 and a traffic information sending unit 500 are included. In this case, the first database 300 includes a real time traffic information database 310 and a traffic information history database 320.

The real-time traffic information data collector 100 collects real-time traffic information of each road and stores it in the real-time traffic information database 310. At this time, the real-time traffic information is collected for each road link ID (ID), the content of the information actually collected is the congestion information (CTT) of the telematics content. That is, the real-time traffic information data collection unit 100 generates real-time traffic information data by matching the measured value of the current vehicle driving speed for each link ID. The real-time traffic information data includes generation time, speed, and driving time information for each link ID, and the generation time includes a date and time at which the actual vehicle driving speed is measured for each link ID.

The traffic information history data generation unit 200 detects real-time traffic information data of a predetermined amount or more for each link ID, and generates traffic information history data using the detected real-time traffic information data. The traffic information history data generation unit 200 stores the generated traffic information history data in the traffic information history database 320. In this case, whenever the real-time traffic information data is updated, each traffic information history data may be updated in real time.

The traffic information history data generation unit 200 generates traffic information history data by arranging the generation time of the real-time traffic information data for each link ID to be the same.

That is, the traffic information history data according to an embodiment of the present invention may have a structure as shown in FIG. 2 below.

2 is a diagram showing the structure of traffic information history data according to an embodiment of the present invention.

As shown in FIG. 2, the traffic information history data has a form in which real-time traffic information data having the same generation time is sorted and stored among the plurality of link ID real-time traffic information data. That is, FIG. 2 shows traffic information history data for each road of roads having link IDs 1140035300 to 1140035800 collected at 8 am on July 30, 2007, which is the same generation time. At this time, the traffic information history data is matched and stored for each link ID according to the same generation time characteristics. At this time, the traffic information history database 320 stores such traffic information history data for each generation time.

The traffic information priority setting unit 400 sets the importance of each link ID for each road by using the traffic information history data, and transmits the traffic information of the link ID having a high importance for each road.

The method of setting the importance of each link ID by the traffic information priority setting unit 400 for each road will be described in detail with reference to FIGS. 3 to 10 below.

 The traffic information transmitter 500 preferentially transmits real-time traffic information data of a link ID having a high importance for each road among the link IDs set by the traffic information priority setting unit 400 to the receiving terminal. At this time, the traffic information sending unit 500 increases the number of times of relative transmission when providing traffic information of the real-time traffic information data of the corresponding link ID as the road of higher importance for each road. In this way, it is possible to increase the probability that the receiving terminal receives the traffic information data of the link ID having a high road-level importance.

3 is a block diagram illustrating a traffic information priority setting unit illustrated in FIG. 1.

4A to 4C illustrate code information stored in a time / day information database according to an exemplary embodiment of the present invention.

5 is a diagram showing the structure of a traffic information history data table according to an embodiment of the present invention, Figure 6 is a diagram showing the structure of a statistical analysis result table according to an embodiment of the present invention.

First, as shown in FIG. 3, the traffic information priority setting unit 400 includes a preprocessing module 410, a statistical analysis module 420, a priority setting module 430, and a second database 440. The second database 440 includes a time / day information database 441, a first traffic information database 442, a second traffic information database 443, and a road-level importance database 444.

The preprocessing module 410 assigns a time code, a day of the week code, and a day of the week type code to each traffic information history data, and generates a table by sorting each traffic information history data according to the assigned code. The preprocessing module 410 stores the generated traffic information history data table in the first traffic information database 442.

At this time, the preprocessing module 410 detects a predetermined amount of real-time traffic information data that can be statistically analyzed among the plurality of road traffic information history data from the traffic information history database 320. Here, the amount of real-time traffic information data capable of statistical analysis may be set in units of months or years. In addition, the preprocessing module 410 refers to the time, day, and day of the week type codes from the time / day database 441 and assigns them to each piece of traffic information history data.

In the time / day database 441, each code information table as shown in Figs. 4A to 4C is stored.

For example, in the embodiment of the present invention, the time / day database 441 stores a time code table divided into 144 time codes by dividing the 24 hours into 10 minute units as shown in FIG. 4A. That is, time code 1 matches in the time zone from 00: 00 to 00: 10, time codes 2 to 143 match in 10 minute intervals, and finally in the time zone from 23:50 to 24:00 Timecode 144 is matched.

In addition, as shown in FIG. 4B, the time / day database 441 stores a day code table to which day codes of 1 to 7 are matched on each day of the week from Monday to Sunday.

As shown in FIG. 4C, the time / day database 441 stores a day type code table in which the day type codes of 1 and 2 match on weekdays and holidays, respectively.

With reference to each of these code tables, the preprocessing module 410 assigns to each traffic information history data a day of the week, day of the week type code and a time code corresponding to the information content of the generation time of the traffic information history data.

The preprocessing module 410 generates the refined traffic information history data table by sorting the traffic information history data assigned with each code according to the day of the week for each link ID.

In detail, the traffic information history data table is sorted by the same day code and day type code for each link ID for each generation time. For example, the traffic information history data table generated by the preprocessing module 410 may be represented as shown in FIG. 5.

In FIG. 5, when the day code of the link ID 1000000200 is 1 (Monday) and the day type code is 1 (weekday), the traffic information history data table includes a speed and a running time for each time code.

At this time, the first traffic information database 442 stores a plurality of traffic information history data tables generated by sorting each day of the week to have the same day characteristic.

For example, FIG. 5 illustrates a traffic information history data table including time-specific speeds and travel times of a link ID 1000000200 of any date having a day code and a day type code of 1 (Monday) and 1 (Weekday), respectively. . Similarly, the traffic information history data table including the hourly speed and travel time of another date having the day code of the link ID 1000000200 and the day type code of 1 (Monday) and 1 (weekday) respectively is the first traffic information database 422. )

The statistical analysis module 420 generates a statistical analysis result table by calculating average speed and standard deviation for each link ID using the refined traffic information history data table. The statistical analysis module 420 stores the statistical analysis result table in the second traffic information database 443.

For example, the statistical analysis result table generated by the statistical analysis module 420 may be represented as shown in FIG. 6. In FIG. 6, when the day code of the link ID 1000000200 is 1 (Monday) and the day type code is 1 (weekday), the average speed and the standard deviation are shown for each time code.

In order to generate the statistical analysis result table, the statistical analysis module 420 detects a plurality of traffic information history data tables from the first traffic information database 442 based on the same day code and day type code for each link ID. do. The statistical analysis module 420 calculates an average speed and a standard deviation by using speed information matching the same time code for each detected plurality of traffic information history data tables.

Accordingly, a plurality of generated statistical analysis result tables are stored in the second traffic information database 443 for each link ID. For example, in the second traffic information database 443, when the day code of the link ID 1000000200 is 1 and the day type code is 1, the statistical analysis result table including the average speed and the standard deviation calculated for each time code is included. Is stored. In addition, when the day code of the link ID 1000000200 is 2 (Tuesday) and the day type code is 2 (public holiday), the statistical analysis result table including the average speed and the standard deviation calculated for each time code is stored.

Priority setting module 430 compares the current traffic information data and the information of the statistical analysis result table, and sets the importance for each road to set the priority when providing traffic information. In addition, the priority setting module 430 generates a road priority table that matches the set road priority and each link ID, and stores the road priority table in the road importance database 444. In this case, the method of generating priority for each road in the priority setting module 430 will be described in detail with reference to FIGS. 8 and 9 below.

The roadway importance database 444 stores a roadway importance table generated from the priority setting module 430.

The traffic information transmitter 500 transmits the traffic information data of a link ID having a high importance for each road at a high priority when providing real-time traffic information according to the importance table for each road stored in the importance database 444 for each road.

7 is a flowchart illustrating a preprocessing step of traffic information data for setting priority according to an embodiment of the present invention.

First, the preprocessing module 410 assigns time, day, and day of the week type codes to the traffic information history data for each link ID (S310).

In detail, the preprocessing module 410 detects the day of the week of the generated date using the date information included in the generation time information of the traffic information history data. Thereafter, the preprocessing module 410 assigns a preset day code corresponding to the detected day of the week. The preprocessing module 410 determines whether the date on which the traffic information history data is generated is a weekday or a holiday, and gives a preset day type code.

At this time, the preprocessing module 410 refers to the time / day information database 441, and

Each code is assigned to the traffic information history data for each link ID. In addition, although not shown in FIG. 3, the preprocessing module 410 may further include a memory (not shown) in which date, day, and holiday information is stored in units of months and years. The preprocessing module 410 may assign each code to traffic information history data for each link ID by using the date, day, and holiday information stored in the memory.

Then, the preprocessing module 410 generates a refined traffic information history data table for each link ID and stores it in the first traffic information database 442 (S320).

At this time, the preprocessing module 410 sorts the traffic information history data to which each code is assigned to the same day code and day type code for each link ID, and the speed and driving time information for each time code for each day and day type code. The refined traffic information history data table is generated to match. That is, a plurality of refined traffic information history data tables are generated for each link ID according to the day of the week and the type of day of the week.

Then, the statistical analysis module 420 calculates an average speed and a standard deviation for each link ID using the refined traffic information history data table (S330).

In detail, the statistical analysis module 420 calculates an average speed and a standard deviation for each time code by using the refined traffic information history data table corresponding to each day and the day of the week for each link ID. In this case, the statistical analysis module 420 may determine missing values (ie, values for which speed information is not stored in the traffic information history data) for each link ID, or values outside of a preset threshold range (ie, speed values or thresholds below the thresholds). The average speed and standard deviation are calculated after removing the anomaly data due to the speed value exceeding).

Thereafter, the statistical analysis module 420 generates a statistical analysis result table including the calculated average speed and standard deviation for each link ID and stores the statistical analysis result table in the second traffic information database 443 (S340).

In this case, the statistical analysis module 420 generates a plurality of statistical analysis result tables having the same day code and day type code for each link ID.

Using the statistical analysis result table, the priority setting module 430 sets the importance of each road for each link ID. Hereinafter, a method of setting importance of each link ID for each road in the priority setting module 430 will be described in detail with reference to FIGS. 8 and 9.

8 is a configuration diagram of a priority setting module according to an embodiment of the present invention. 9 is a view showing the structure of a comparative analysis result table according to an embodiment of the present invention.

As shown in FIG. 8, the priority setting module 430 includes a real-time traffic information comparison analysis module 431, a comparison analysis result database 432, and a road-level importance setting module 433.

The real-time traffic information comparison analysis module 431 compares the real-time traffic information data for providing current traffic information with the information included in the statistical analysis result table and generates a comparison analysis result table. The real-time traffic information comparison analysis module 431 stores the generated comparison analysis result table in the comparison analysis result database 432.

In detail, the real-time traffic information comparison analysis module 431 detects real-time traffic information data for each link ID from the real-time traffic information database 310. The real-time traffic information comparison analysis module 431 analyzes the generation time of the real-time traffic information data for each detected link ID, and has a statistical analysis result having the same day code and day type code for each link ID from the second traffic information database 443. Detect the table.

The real-time traffic information comparison analysis module 431 calculates the speed difference using the speed information of the real-time traffic information data and the average speed information of the statistical analysis result table. In this case, the speed difference is a difference limiting the speed of the real-time traffic information data from the average speed of the statistical analysis result table, and represents a speed change amount of the current speed with respect to the average speed.

The real-time traffic information comparison analysis module 431 generates a comparison analysis result table by sorting data including an average speed, a standard deviation, and a speed difference matched to a time code for providing current traffic information by link ID, and then comparing and analyzing the data. The result is stored in the database 432.

For example, the comparative analysis result table according to the embodiment of the present invention may be represented as shown in FIG. 9. That is, in FIG. 9, each day code of the link IDs 1000000200 to 1000000206 is 1 (Monday), the day type code is 1 (weekday), and the time code is the same as 63, and the average speed, standard deviation, and The comparative analysis result table which matched and stored the speed difference is shown.

The importance setting module 433 for each road sets the importance for each road of each link ID by referring to a comparison analysis result table. In addition, the importance setting module 433 for each road generates a road importance table that matches the importance of each road for each link ID and stores it in the importance database 444 for each road.

At this time, in the importance setting method for each road according to an embodiment of the present invention, the importance setting module 433 for each road may set the importance for each road of the link ID as the value of the speed difference in the comparison analysis result table becomes larger.

In other words, a large speed difference means that the driving speed of the vehicle is much faster or slower than the average speed on a road having a specific link ID. Accordingly, the importance setting module 433 for each road sets the importance for each road as the link ID having a larger speed difference in the comparison analysis result table.

At this time, the importance of each road may be set to be higher as the speed difference is larger for each link ID, and may be set to the same importance when the same speed difference is calculated for each link ID. In addition, it is also possible to set the importance of each road higher as the negative speed difference is smaller for each link ID. At this time, the traffic information data of the link ID having high importance for each road is transmitted with a high priority.

Meanwhile, in the exemplary embodiment of the present invention, the method of calculating the speed difference when generating a comparison analysis result table shows a method of subtracting the current speed from the average speed as the speed difference, but using the absolute value of the difference between the average speed and the current speed. It is also possible to calculate the difference. That is, when calculating the speed difference by the absolute value of the difference between the average speed and the current speed, regardless of the current speed of the specific link ID is faster or slower than the average speed, the larger the speed vehicle itself, the more the traffic ID information changes. The importance of each road can be largely determined.

Next, in the road-level importance setting method according to another embodiment of the present invention, the road-level importance setting module 433 may set the road-level importance of the link ID as the value of the standard deviation of the comparison analysis result table becomes larger.

That is, the large standard deviation means that the change amount is large in the same day, day of the week, and time when the vehicle driving speed of the road having a specific link ID is the same. Therefore, it is possible to transmit with a high priority by setting the importance of each road of a particular link ID by a large.

Next, in the importance setting method for each road according to another embodiment of the present invention, the importance setting module 433 for each road may set the importance for each road by link ID through Equation 1 to be described below.

[Equation 1]

는 현재 속도,

는 평균 속도,

는 표준 편차,

는 표준 편차의 평균이다. 즉, 도로별 중요도 설정 모듈(433)은 특정 링크 아이디의 현재 속도(

)와 평균 속도(

)의 차를 특정 링크 아이디의 표준 편차(

)와 전체 링크 아이디별 표준 편차의 평균(

)의 합으로 나눈 값이 클수록 특정 링크 아이디의 도로별 중요도를 높게 설정할 수 있다. In Equation 1

Is the current speed,

Is the average speed,

Is the standard deviation,

Is the mean of the standard deviations. That is, the importance setting module 433 for each road may include the current speed of a specific link ID.

) And average speed (

) Is the standard deviation of

) And the average of the standard deviations by all link IDs (

), The greater the value divided by the sum, the higher the importance of each link of a particular link ID.

)와 평균 속도(

)의 차를 표준 편 차(

) 만으로 나눌 경우 전체 링크 아이디 중에서 표준 편차가 작은 링크 아이디들의 도로별 중요도가 상대적으로 높아질 수 있다. 따라서, 수학식 1에서 링크 아이디별 표준 편차(

)와 전체 표준 편차의 평균(

)의 합을 분모로 하는 것이 바람직하다.At this time, the current speed (Equation 1)

) And average speed (

) Standard deviation (

), The importance of link IDs with small standard deviation among all link IDs can be relatively high. Therefore, in Equation 1, the standard deviation for each link ID (

) And the mean of the overall standard deviations (

It is preferable to make the sum of) a denominator.

In this case, when the speed included in the current real-time traffic information data of a specific link ID is slower than the average speed included in the comparison analysis result table, the speed difference included in the comparison analysis result table has a negative number. That is, the numerator of Equation 1 becomes negative. In this case, the importance setting module 433 for each road may determine that the current vehicle driving speed of the specific link ID is slower as the calculation result of Equation 1 is smaller, and set the importance for each road of the specific link ID higher. In addition, the importance setting module 433 for each road may determine that the current vehicle driving speed of a specific link ID is faster as a result of the calculation result of Equation 1 is larger, and may set a higher importance for each road of the specific link ID.

In addition, the importance setting module 433 for each road may determine that the change amount of the current vehicle driving speed of a specific link ID is larger as the absolute value of the calculation result value of Equation 1 is larger, and set the importance of each road of the specific link ID higher. have. Meanwhile, in the importance setting method for each road according to another embodiment of the present invention, the importance setting module for each road 433 refers to a comparison analysis result table immediately before the current time for providing traffic information, and indicates a speed difference at the current time. The greater the difference between the speeds of the previous time point and the more important the road priority of the link ID. That is, it may be determined that the speed change of the specific link ID is rapidly progressed as the difference between the current speed and the average speed of the specific link ID and the speed difference at the previous time point becomes larger.

Meanwhile, the importance table for each road may have a structure as shown in Table 1 below.

TABLE 1

Link id Importance by road 1000000100 2013 1000000200 2012 1000000300 2031 1000000400 2036 ㆍ ㆍ ㆍ ㆍ ㆍ ㆍ

That is, as shown in Table 1, the importance table for each road is matched and stored for each link ID. In this case, Table 1 shows that the link ID is 100000001000 to 1000000400, for example, and each importance is sequentially set according to the importance setting method for each road described above.

10 is a flowchart illustrating a method of providing traffic information according to priority according to an embodiment of the present invention.

First, the real-time traffic information comparison analysis module 431 detects real-time traffic information data at the time of providing traffic information (S410). At this time, the real-time traffic information comparison analysis module 431 detects real-time traffic information data for each link ID from the real-time traffic information database 310.

Then, the real-time traffic information comparison analysis module 431 calculates the speed difference by comparing and analyzing the current speed information included in the real-time traffic information data and the average speed information of the statistical analysis result table (S420). At this time, the real-time traffic information comparison analysis module 431 detects the statistical analysis result table for each link ID from the second traffic information database 443.

The real-time traffic information comparison analysis module 431 generates a comparison analysis result table for each link ID including the calculated speed difference and stores the result in the comparison analysis result database 432 (S430). In this case, the real-time traffic information comparison analysis module 431 generates a comparison analysis result table by sorting the speed difference for each link ID by the same day code, day type code, and time code. The comparative analysis result table includes average speed and standard deviation information along with speed differences for each link ID.

Then, the importance setting module 433 for each road sets the importance for each road by link ID using the comparison analysis result table (S440), and generates the importance table for each road and stores it in the importance database 444 for each road (S450). ). In this case, the importance setting module 433 for each road may set the importance for each road according to each embodiment of the importance setting method for each road described above with reference to FIG. 8. That is, the importance setting module 433 for each road generates the importance for each road using the speed difference value and the standard deviation value of the comparison analysis result table, and creates the importance table for each road by matching the importance for each road by each link ID. .

Thereafter, the traffic information sending unit 500 performs a traffic information providing service by increasing the priority of the link ID having a high importance for each road according to the contents of the importance table for each road (S460). That is, the traffic information sending unit 500 detects the road importance table stored in the road importance database 444 and determines the priority of each link ID for providing current traffic information.

In this case, the traffic information transmitting unit 500 sequentially sets the priority of the link IDs having the highest importance value for each road among all the link IDs, and increases the number of transmissions of the link IDs having the highest priority. The probability of receiving the traffic information data of the link ID may be increased.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a block diagram of a traffic information providing apparatus for providing traffic information according to the priority of information according to an embodiment of the present invention.

2 is a diagram showing the structure of traffic information history data according to an embodiment of the present invention.

3 is a block diagram illustrating a traffic information priority setting unit illustrated in FIG. 1.

4A to 4C illustrate code information stored in a time / day information database according to an embodiment of the present invention.

5 is a diagram illustrating the structure of a traffic information history data table according to an embodiment of the present invention.

6 is a diagram showing the structure of a statistical analysis result table according to an embodiment of the present invention.

7 is a flowchart illustrating a preprocessing step of traffic information data for setting priority according to an embodiment of the present invention.

8 is a configuration diagram of a priority setting module according to an embodiment of the present invention.

9 is a view showing the structure of a comparative analysis result table according to an embodiment of the present invention.

10 is a flowchart illustrating a method of providing traffic information according to priority according to an embodiment of the present invention.

Claims (21)

In the device for providing traffic information according to the importance of each road, A real-time traffic information collecting unit for collecting real-time traffic information data for each road; A traffic information history data generation unit for generating traffic information history data by arranging real-time traffic information data for each road according to a generation time of the real-time traffic information data for each road; The traffic information history data table is generated by sorting the real-time traffic information data for each road included in the traffic information history data according to the day of the week, and comparing the traffic information history data table with the real-time traffic information data to be provided. Traffic information priority setting unit for setting the importance of each star; And A traffic information transmitter for preferentially transmitting the currently provided real-time traffic information data from a road having a high importance for each road to a receiver terminal Including, The traffic information priority setting unit, The traffic information history data table is provided by assigning a day code, a day type code, and a time code corresponding to the generation time of each road included in the traffic information history data, and sorting the traffic information history data so that the day characteristics are the same. A preprocessing module for generating a; A statistical analysis module for calculating an average speed and a standard deviation of each time code for each of the traffic information history data tables, and generating a statistical analysis result table for each road including the calculated average speed and standard deviation; And Priority setting module for setting the importance of each road using the statistical analysis result table Traffic information providing device comprising a. delete The method of claim 1, The traffic information priority setting unit, Time / day information database that stores weekday codes matching each day, weekday type codes matching weekdays or holidays, and timecodes matching each time zone by dividing 24 hours into regular periods Traffic information providing device further comprising. The method of claim 3, The pretreatment module, A day code, day type code, and time code corresponding to a generation time for each road included in the traffic information history data are given with reference to the time / day information database. Traffic information provision device. The method of claim 1, The pretreatment module, Generating the traffic information history data table by sorting the traffic information history data having the same day day code and day type code by time code Traffic information provision device. The method of claim 1, The priority setting module, A real time calculating a speed difference between a current speed for each road included in the currently provided real-time traffic information data and an average speed for each road included in the statistical analysis result table, and generating a comparison analysis result table including the speed difference Traffic information comparison analysis module; And Importance setting module for each road setting the importance of each road using the comparison analysis result table Traffic information providing device comprising a. The method of claim 6, The real-time traffic information comparison analysis module, Generating the comparison analysis result table by storing the average speed, the standard deviation, and the speed difference in each time code when the same day code and day type code are provided for each road. Traffic information providing device, characterized in that. The method of claim 6, The road priority setting module, The higher the speed change amount between the average speed and the current speed, the higher the importance of each road is set. Traffic information providing device, characterized in that. The method of claim 6, The road priority setting module, The higher the speed change amount between the average speed and the current speed based on the standard deviation, the higher the importance of each road is set. Traffic information providing device, characterized in that. The method of claim 9, The road priority setting module, Traffic information providing device, characterized in that to include the overall average of the standard deviation in the reference. The method of claim 6, The road priority setting module, The higher the speed change between the speed difference in the comparison analysis result table and the speed difference in the comparison analysis result table generated immediately before the current traffic information is provided, the higher the importance of each road is set. Traffic information providing device, characterized in that. The method according to any one of claims 1 to 3, wherein The traffic information sending unit, Relatively increase the frequency of transmission of the current real-time traffic information data of the road of high importance by road compared to the road of low importance by road Traffic information providing device, characterized in that. In the method of providing traffic information according to the importance of each road, Generating a plurality of traffic information history data by sorting real-time traffic information data for each road according to a generation time; Generating a plurality of traffic information history data tables by sorting the real-time traffic information for each road included in the traffic information history data to have the same day characteristic, and sorting the sorted real-time traffic information for each road by time, respectively. ; Generating a statistical analysis result table for each road by calculating an average speed and a standard deviation for each time for each traffic information history data table; Generating the importance of each road by comparing and analyzing real-time traffic information data for each road to be provided at a current time point and information in the statistical analysis result table for each road; And Firstly transmitting the currently provided real-time traffic information data from a road having a high importance for each road to a receiving terminal; Including, The real-time traffic information data for each road, Each of the roads includes a generation time including date information and time information from which the real-time traffic information data of each road is collected, and a speed for each road that matches each generation time, Generating the traffic information history data table, Assigning a day code corresponding to the date information and a day type code in the traffic information history data and giving a time code corresponding to the time information; Arranging real-time traffic information for each road by the same day day code and day day type code; And Generating the traffic information history data table by matching the speed of each road for each time code when the day code and the day type code are the same Traffic information providing method comprising a. delete delete The method of claim 13, Generating the statistical analysis result table for each road, Calculating an average speed and a standard deviation of each of the road-specific speeds included in the plurality of traffic information history data tables, Generating the statistical analysis result table for each road by matching the average speed and the standard deviation for each time when the same day and the day of the week type are for each road How to provide traffic information. The method of claim 16, Generating the importance of each road, Calculating a speed difference between a current road speed included in real-time traffic information data to be provided at the current time point and the average speed of the road statistical analysis result table at the same day, day type, and time; Generating a comparison analysis result table including the average speed for each road, the standard deviation, and the speed difference at the same day, day, and time as the current time; And Generating importance of each road using each information of the comparison analysis result table; Traffic information providing method comprising a. The method of claim 17, In generating the importance of each road, The higher the speed change amount between the road-specific speed and the average speed at the present time, the higher the importance of each road is set. Traffic information providing method, characterized in that. The method of claim 17, In generating the importance of each road, As the road-specific speed of the current time is smaller than the average speed, the importance of each road is set higher. Traffic information providing method, characterized in that. The method of claim 17, In generating the importance of each road, The higher the speed change amount between the road-specific speed and the average speed based on the standard deviation, the higher the importance of each road is set. Traffic information providing method, characterized in that. The method of claim 17, In generating the importance of each road, The higher the speed change amount between the speed difference of the comparison analysis result table generated immediately before the current time point and the speed difference of the comparison analysis result table generated at the current time point, the higher the importance of each road is set. Traffic information providing method, characterized in that.

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