KR19990070527A - Traffic information processing device in digital audio broadcasting system and traffic information providing method using the same - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a traffic information processing apparatus and a traffic information providing method using the same.

2. The technical problem to be solved by the invention

The present invention provides a traffic information processing apparatus for mapping traffic information onto a map in a digital audio broadcasting system, and a traffic information providing method for providing map information displaying traffic information to a subscriber who does not have a geographic information database using the same. To do so.

3. Summary of Solution to Invention

The present invention includes a first step of mapping traffic information data received from a traffic information server on a map and converting the mapped data into still image data and storing the traffic information data in a traffic information image database; A second step of converting the still picture data into a transmission message and then performing air propagation through a digital audio broadcasting network according to a digital audio broadcasting wireless access standard; And a third step of demodulating the airwaves transmitted message according to a digital audio broadcasting wireless access standard and providing the extracted image traffic information to a user.

4. Important uses of the invention

The present invention is used for providing traffic information, such as digital audio broadcasting system.

Description

Traffic information processing device in digital audio broadcasting system and traffic information providing method using same

The present invention provides a traffic information processing apparatus for mapping traffic information data to a map and converting the traffic information data into a still image in a digital audio broadcasting system, and providing map information in which traffic information is displayed to a subscriber who does not have a geographic information database. The present invention relates to a traffic information providing method capable of providing a service having a high recognition rate.

Currently, logistics costs are increasing exponentially due to traffic congestion, but since the construction of roads is limited, a method of providing traffic information to prisoners in a timely manner is required to effectively use existing roads.

In general, the traffic information service by a mobile body includes a low-profile character traffic information using a mobile phone and a pager, and a high-resolution geographic map type image traffic information.

In the related art, a text call system has a small transmission capacity, and thus provides a user with a text recognition service having a low recognition rate. In order to provide a service having a high recognition rate to a user, a user is provided with a geographic database and an apparatus for accessing the same. Since there must be a problem that gives an economic burden to the user.

In order to solve the above problems, the present invention provides a traffic information processing device for mapping traffic information onto a map in a digital audio broadcasting system, and a map in which traffic information is displayed to a subscriber who does not have a geographic information database using the same. The purpose is to provide a traffic information providing method for providing information.

1 is an exemplary configuration diagram of a digital audio broadcasting system to which the present invention is applied.

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

3 is a structural diagram of a transmission message used in the present invention.

4 is a flowchart illustrating an embodiment of a traffic information providing method according to the present invention;

* Explanation of symbols for the main parts of the drawings

10: traffic information server 20: traffic information processing device

30: Geographic Information Database 40: Digital Audio Broadcasting Network

50: data receiving device 60: traffic information database

70: display device

According to an aspect of the present invention, there is provided a traffic information processing apparatus of a digital audio broadcasting system, comprising: traffic information server matching means for receiving traffic information data for each section in association with a traffic information server; Traffic information storage means for storing the traffic information data of the traffic information server matching means; Geographic information storage means for storing a map for the region; Mapping means for mapping the traffic information data stored in the traffic information storage means to a map of the geographic information storage means; Traffic information image extraction means for converting the mapping data received from the mapping means into still image data; Traffic information image storing means for storing still image data of said traffic information image extracting means; And digital audio broadcasting network matching means for publicly propagating the still image data stored in the traffic information image storing means through a digital audio broadcasting network.

According to the method of the present invention, in the traffic information providing method applied to a digital audio broadcasting system, the traffic information data received from the traffic information server is mapped onto a map, and the mapped data is converted into still image data to convert the traffic information. A first step of storing in an image database; A second step of converting the still picture data into a transmission message and then performing air propagation through a digital audio broadcasting network according to a digital audio broadcasting wireless access standard; And a third step of demodulating the air-propagated transmission message according to the digital audio broadcasting wireless access standard and providing the extracted image traffic information to the user.

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

1 is an exemplary configuration diagram of a digital audio broadcasting system to which the present invention is applied.

Digital audio broadcasting system to which the present invention is applied is intended to provide audio and data services for mobile / fixed terminals. Although there are some differences depending on the system, the digital audio broadcasting system has a capacity of transmitting large data of several hundred Kbps to several Mbps. Data can be transmitted in real time.

The traffic information server 10 stores the traffic information data collected by various methods in the form of a database according to a predetermined format, and stores it in a dedicated line (X.25) or a communication network (transmission control protocol / Internet protocol (TCP / IP) and RS-). 232 is transmitted to the traffic information processing device 20.

The traffic information processing apparatus 20 receives the traffic information data format from the traffic information server 10, accesses the corresponding map from the geographic information database 30, combines the accessed map with traffic information, and converts the traffic information into a still image form. It stores in the traffic information image database 207 which will be described later, and outputs the stored traffic information to the digital audio broadcasting network 40 through a dedicated line (X.25) or a communication network (TCP / IP, RS-232) according to a predetermined format.

The digital audio broadcasting network 40 receives the traffic information still image from the traffic information processing apparatus 20, converts it into a signal form defined by each digital audio broadcasting standard, and propagates it to the air.

The data receiving apparatus 50 receives a signal propagated from the digital audio broadcasting network 40 and stores desired information in a database. In particular, the traffic information still image is received and stored in the traffic information database 60, and output to the screen of the screen display device 70 when the user desires.

2 is a block diagram of a traffic information processing apparatus according to the present invention, in which 201 is a traffic information server matching unit, 202 is a mapping unit, 203 is a traffic information image extraction unit, 204 is a digital audio broadcasting network matching unit, and 205 is a A traffic information database, 206 indicates a geographic information database, and 207 indicates a traffic information image database.

The traffic information processing apparatus 20 according to the preferred embodiment of the present invention includes a traffic information server matching unit 201 and a traffic information server matching unit for receiving traffic information data for each section in cooperation with the traffic information server 10. The traffic information database 205 for storing the traffic information data of the 201, the geographic information database 206 for storing the map of the area, and the traffic information data stored in the traffic information database 205 A mapping unit 202 for mapping onto a map of the database 206, a traffic information image extraction unit 203 for converting mapping data received from the mapping unit 202 into still image data, and a traffic information image extraction unit The traffic information image database 207 for storing the still image data of 203 and the still image data stored in the traffic information image database 207 are used for the digital audio broadcasting network 40. It comprises a digital audio broadcasting network matching unit 204 for the air propagation.

The traffic information server matching unit 201 receives the traffic information data in association with the traffic information server 10, converts the received traffic information data into a format for mapping the geographic information database 206, and traffic information. Stored in the database 205.

The mapping unit 202 is located in the traffic information database 205 and the geographic information database 206, and maps traffic information data for each section stored in the traffic information database 205 to a corresponding map of the geographic information database 206, The mapped event data is transmitted to the traffic information image extraction unit 203.

The traffic information image extracting unit 203 converts the event data received from the mapping unit 202 into still image data and stores it in the traffic information image database 207.

The digital audio broadcasting network matching unit 204 accesses the still picture data of the traffic information database 205 sequentially or in order of priority and transmits it to the digital audio broadcasting network 40 according to a predetermined format.

3 is a structural diagram of a transmission message used in the present invention, and shows a message structure for transmitting a traffic information image through the digital audio broadcasting network 40 to the data receiving apparatus 50 according to the digital audio broadcasting wireless connection standard.

The transmission message can be broadly classified into category classification information 301, detailed category classification information 302, total length information 303, identifier information 304, and content information 305.

The type classification information 301 is a delimiter for classifying the type of data included in the content information 305.

The detailed type classification information 302 is a delimiter for further subdividing the type of data included in the content information 305 from the type classification information 301. For example, if the major classification is traffic information, the subdivision is used as an index or image information.

The total length information 303 is information indicating the length of data included in the content information 305 in units of bytes.

The identifier information 304 is information for individually distinguishing data included in the content information 305. In particular, in order to distinguish each traffic information image in the data receiving apparatus 50 in transmitting the traffic information image, it is used to uniquely assign a separator according to each geographical position.

The content information 305 is information in which actual data is recorded.

4 is a flowchart illustrating a traffic information providing method according to the present invention.

The traffic information providing method according to the preferred embodiment of the present invention transmits the traffic information map itself displaying the traffic information to the data receiving apparatus 50 using a digital audio broadcasting system having a large capacity of transmission.

In particular, the present invention maps the traffic information data obtained by collecting the traffic information from the traffic information server 10 having a database form on a map of the geographic information databases 30 and 206, and maps the mapped map to a still image. In this form, the digital audio broadcasting system is transmitted to the data receiving apparatus 50 to provide the traffic information required by the user at the desired time.

First, the traffic information server matching unit 201 collects traffic information, accesses and receives changed contents among data stored in the traffic information server 10 having a database form, and receives the received information to interwork with the geographic information databases 30 and 206. The change is converted and stored and updated in the traffic information database 205 (401).

For example, since the traffic information of the traffic information server 10 may display the same region or road with different identifiers in cooperation with the geographic information databases 30 and 206, the traffic information server matching unit 201 converts the data considering the interworking. This is necessary.

Thereafter, the casualty unit 202 accesses the geographic information databases 30 and 206 for the changed contents among the data stored in the traffic information database 205 to obtain a map including the changed traffic information, and includes the changed contents in the acquired map. The traffic information data for all the traffic information sections that have been mapped are mapped (402).

Next, the traffic information image extraction unit 203 converts the map mapped by the mapping unit 202 into a still image form and stores it in the traffic information image database 207 (403).

Subsequently, the digital audio broadcasting network matching unit 204 converts the still image data stored in the traffic information image database 207 into a transmission message format (see FIG. 3) according to sequential or priority order and transmits the digital image to the digital audio broadcasting network 40. (404).

Thereafter, the transmission message through the digital audio broadcasting network 40 is converted and modulated according to the digital audio broadcasting wireless access standard and propagated to the air (405).

Next, the data receiving apparatus 50 demodulates the airwave signal received from the digital audio broadcasting network 40 according to the digital audio broadcasting standard to analyze the data, and extracts only the image traffic information necessary for the service from the analyzed data ( 406).

Thereafter, the image traffic information of each extracted node is interpreted according to the format of the transmission message of FIG. 3 and stored and updated in the traffic information database 60 (407).

Finally, the image traffic information stored in the traffic information database 60 is provided to the user through the screen of the screen display device 70 at a desired time (408).

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

As described above, the present invention can increase the recognition rate by providing traffic information in the form of an image, and can reduce the economic burden because an individual does not have to have a geographic information database by transmitting a map itself including traffic information. By using the latest geographic information database when processing traffic information, it is possible to provide more accurate traffic information than when an individual has a geographic database.

Claims (6)

In the traffic information processing apparatus of the digital audio broadcasting system, Traffic information server matching means for receiving traffic information data for each section in association with the traffic information server; Traffic information storage means for storing the traffic information data of the traffic information server matching means; Geographic information storage means for storing a map for the region; Mapping means for mapping the traffic information data stored in the traffic information storage means to a map of the geographic information storage means; Traffic information image extraction means for converting the mapping data received from the mapping means into still image data; Traffic information image storing means for storing still image data of said traffic information image extracting means; And Digital audio broadcasting network matching means for publicly propagating the still picture data stored in the traffic information image storing means through a digital audio broadcasting network Traffic information processing device comprising a. In the traffic information providing method applied to a digital audio broadcasting system, A first step of mapping traffic information data received from the traffic information server on a map, converting the mapped data into still image data, and storing the traffic information data in a traffic information image database; A second step of converting the still picture data into a transmission message and then performing air propagation through a digital audio broadcasting network according to a digital audio broadcasting wireless access standard; And A third step of demodulating the transmitted air message according to a digital audio broadcasting wireless access standard and providing the extracted image traffic information to a user; Traffic information providing method comprising a. The method of claim 2, The first step is, A fourth step of accessing and receiving the changed contents of the data stored in the traffic information server by the traffic information server matching unit, and storing the received changes in the first traffic information database; A fifth step in which a casualty unit maps the traffic information data on the changed contents among the data stored in the first traffic information database to a map of a geographic information database; And A sixth step in which the traffic information image extracting unit converts the event data received from the mapping unit into a still image form and stores it in the traffic information image database; Traffic information providing method comprising a. The method of claim 2 or 3, The second step, A seventh step of converting, by the digital audio broadcasting network matching unit, still picture data stored in the traffic information image database into the transmission message and transmitting the converted message to the digital audio broadcasting network; And An eighth step of the digital audio broadcasting network converting and modulating the transmission message according to the digital audio broadcasting wireless access standard and performing air propagation Traffic information providing method comprising a. The method of claim 4, wherein The third step, A ninth step of the data receiving apparatus demodulating the airwave signal received from the digital audio broadcasting network according to the digital audio broadcasting wireless access standard to analyze data, and extracting only image traffic information necessary for service from the analyzed data; A tenth step of interpreting image traffic information of each extracted node according to a format of the transmission message, and storing and updating the image traffic information in a second traffic information database; And An eleventh step of outputting image traffic information stored in the second traffic information database on a screen of a screen display device; Traffic information providing method comprising a. The method of claim 5, The transmission message, A traffic information providing method comprising type classification information, detailed type classification information, full length information, identifier information, and content information.