KR20070120714A - Device and method for displaying traffic information - Google Patents

Abstract

A method and a device for displaying dynamic traffic information are provided to enable a driver to obtain state information of a road quickly and easily by variably changing a speed of an image according to a road speed. A receiver(220) receives a TPEG(Transport Protocol Expert Group) data. A TPEG processor(240) converts the received TPEG data to TPEG data according to a link ID of map data. A map data processor(260) processes the map data, on which the TPEG data is displayed. A dynamic state processor(210) relates the TPEG data to the link ID of the map data and manages a moving speed and display position information of an image to be displayed. A display controller(200) displays the image on a display(280) at the predetermined moving speed.

Description

Dynamic display device and method of traffic information {DEVICE AND METHOD FOR DISPLAYING TRAFFIC INFORMATION}

1A and 1B illustrate an example of displaying traffic information in a conventional terminal.

2 is a diagram illustrating an overview of a system to which a terminal capable of displaying traffic information using a dynamic icon or an image according to an embodiment of the present invention.

3 is a diagram illustrating a configuration of a terminal according to an embodiment of the present invention.

4 is a flowchart illustrating a procedure of receiving TPEG data at a terminal and displaying the same on a map using a dynamic image according to an embodiment of the present invention.

5 illustrates an example of displaying a dynamically moving image as an icon according to an exemplary embodiment of the present invention.

FIG. 6 is a diagram illustrating an example in which a dynamically moving image is represented by a bar according to an exemplary embodiment of the present invention.

The present invention relates to an apparatus and method for displaying traffic information, and more particularly, to an apparatus and method for displaying a state of a road in a dynamic image.

In general, a terminal using a navigation system or map data stores map data and displays various traffic information on a map. Here, the traffic information may display speed information for each section that can be run on the corresponding road according to the degree of congestion and the degree of congestion of a road (highway, automobile road, general road, etc.). In this case, as the display method of the traffic information, as shown in FIG. 1A, a different colored arrow shape is displayed for each speed on the map, or a speed for each section is displayed in text form as shown in FIG. 1B.

As described above, the conventional traffic information display method is a method of expressing a speed in text according to a simple section, or displaying on a map in different colors for each speed. However, the method of displaying traffic information in text form as shown in FIG. 1B is less readable than the method of displaying through a map. In addition, as shown in FIG. 1A, a method of displaying speed information with an arrow of a different color together with a map may be displayed in a plurality of layers on a complicated road, and the road may be displayed unclearly. It could cause confusion in understanding traffic information.

Accordingly, an object of the present invention is to provide an apparatus and method for dynamically displaying traffic information according to a situation in a terminal device having map data and displaying traffic information.

Another object of the present invention is to provide an apparatus and method for displaying a state of traffic information on a map using a dynamic icon in a terminal having map data and displaying traffic information.

Still another object of the present invention is to provide an apparatus and method capable of displaying using an image that is dynamically changed according to the speed of a road in a terminal having map data and displaying traffic information.

An apparatus for dynamically displaying traffic information according to an embodiment of the present invention for achieving the above object comprises: a receiving unit for receiving TPEG data, a TPEG processing unit for converting the TPEG data into TPEG data according to a link identifier of map data; A map data processor for processing map data to display the TPEG data, a dynamic state processor for managing movement speed and display position information of an image to be displayed by mapping the TPEG data to a link identifier of the map data, and a setting time; The display is characterized in that the display is configured with a display control unit for displaying the image at a moving speed set in the position of the set map.

The TPEG data is road speed information, and the link identifier is road information on the map, and the display controller changes the image to a color corresponding to the set moving speed and displays the image. It is done.

The image is an icon image for indicating the speed of movement on the road, and the image is a bar-shaped image for indicating the speed of movement on the road.

In addition, according to an embodiment of the present invention, a method for dynamically displaying traffic information includes converting the TPEG data into TPEG data according to a link identifier of map data upon receiving TPEG data, and converting the converted TPEG data into the map data. Managing the moving speed and the display position information of the image to be displayed in correspondence with the link identifier, and displaying the image on the display unit at the set time at the set moving speed at the set time.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that the same components in the figures represent the same numerals wherever possible.

The embodiment of the present invention expresses the speed information of the road when the traffic information is displayed as an icon or image that is dynamically changed. The icon or image moves according to the road speed, and has a color according to each speed. Therefore, if the actual road speed is displayed as a moving icon, the terminal user can quickly and easily recognize the traffic information on the road.

2 is a diagram illustrating an overview of a system to which a terminal capable of displaying traffic information using a dynamic icon or an image according to an embodiment of the present invention.

Referring to FIG. 2, the system includes a TPEG service provider 110 for providing a TPEG (Transport Protocol Expert Group) service, a transmission medium 120 for transmitting the TPEG service, and a terminal 130 for displaying traffic information according to the TPEG service. It may be configured as.

Here, the TPEG is supported by the European Broadcasting Union (EBU) and the International Organization for Standardization (ISO) and the European Standards Committee, which define how to transmit traffic and travel information (TTI) through various digital media and the Internet. (CEN) is a joint standard. The TPEG standard standardizes standards such as Road Traffic Message (RTM) and Public Transport Information (PTI). The RTM also includes standards for congestion and travel time information (CTT).

In FIG. 2, the TPEG service provider 110 acquires traffic information through various paths such as a traffic information source or a traffic camera, and builds a TPEG message database using the obtained information. The TPEG message database is updated each time new traffic information is obtained. The TPEG service provider 110 generates a TPEG stream encoded according to the TPEG specification of traffic information constructed in the TPEG message database and transmits it through the transmission medium 120. Since the TPEG standard considers various transmission media 120, the method of transmitting TPEG data follows the method of transmitting data from the transmission media 120.

The transmission medium 120 uses a broadcasting network 121 based on a digital broadcasting station 121, a communication network 123 capable of performing public wireless communication (CDMA, UMTS, GSM, etc.), and TCP / IP (Transmission Control Protocol / Internet Protocol). It can be connected to the TPEG service provider 110, the Internet network 125, and other transmission medium 127, which can be connected to the terminal 130 using the ADSL or PSDN. As described above, the media for transmitting the TPEG stream are various because the TPEG standard considers various transmission media.

The terminal 130 stores the map data and displays the speed of the road using dynamic icons or images when displaying traffic information using the TPEG service according to an embodiment of the present invention. In addition, the terminal 130 has a function of processing traffic information based on the TPEG service. That is, the terminal 130 has a function of receiving a TPEG stream, decoding the received TPEG stream, and providing traffic information to a user. The terminal 130 may be a navigation device mounted in a mobile system such as a vehicle, a mobile terminal such as a mobile phone or a laptop, a computer system such as a desktop, or one of digital A / V devices such as a digital television and a digital audio device. Can be.

Currently, the TPEG service uses a digital broadcasting network 121. The digital broadcasting network uses DMB (Digital Multimedia Broadcasting) or DVB (Digital Video Broadcasting). Currently, the spread of terminals having the digital broadcast reception function is increasing. A user having a mobile terminal having the above digital broadcasting reception can use the digital broadcasting service anywhere. The digital broadcast transmitter may transmit video, audio and information data. The information data may include broadcast data EPG (Electronic Program Guide) or ESG (Electronic Service Guide), and may include additional information. The additional information may include a TPEG stream according to an embodiment of the present invention. That is, the broadcasting network 121 may transmit the TPEG stream delivered from the TPEG service provider 110 as the information data stream. Then, the terminal 130 extracts TPEG-related data from the received information data stream and processes the extracted TPEG data to display traffic information.

In the following description, it is assumed that a medium for transmitting the TPEG data is digital broadcasting.

3 is a diagram illustrating a configuration of a terminal 130 according to an embodiment of the present invention.

Referring to FIG. 3, the terminal 130 may selectively receive one of the signals transmitted from the media included in the transmission medium 120. Therefore, the receiver 220 may be configured in a different form according to the type of the transmission medium 120. . In the embodiment of the present invention, it is assumed that the TPEG stream is transmitted by the digital broadcast transmitter, and therefore, the receiver 220 is a receiver of the digital broadcast receiver. In this case, the receiver 220 may include an antenna, a tuner, a demodulator, and the like. Then, the receiver 220 demodulates and outputs data of a channel (physical channel and service channel) selected by the user from the received digital broadcast signal.

In this case, the demodulated broadcast data stream is composed of a video, audio and information data stream. The demultiplexer 230 demultiplexes the video, audio, and information data from the demodulated data and outputs the demultiplexed data to corresponding decoders. In this case, the configuration of the video decoder, the audio decoder and the broadcast data decoder is omitted, and the configuration of performing the cellular phone communication function is also omitted. That is, the configuration of the terminal shown in FIG. 3 illustrates only the configuration of the terminal for processing the TPEG data according to the embodiment of the present invention. Accordingly, the demultiplexer 230 extracts a TPEG stream and transmits the TPEG stream to the TPEG decoder 240 during the demultiplexing operation. Then, the TPEG processing unit 240 decodes the TPEG stream to obtain TPEG data, and the TPEG data is stored in the first storage unit 250 and delivered to the control unit 200. The first storage unit 250 may be used as a TPEG DB.

Here, the TPEG data may be data related to traffic information, and the TPEG data in the embodiment of the present invention may include the speed information of the road as described above. The dynamic state processor 210 then determines a dynamic icon for displaying the TPEG data on the display unit 280 or an image capable of representing the same. That is, in the embodiment of the present invention, the dynamic state processor 210 processes the TPEG data so that the TPEG data can be displayed on the display unit 280 according to the color and the speed corresponding to each road speed. In order to display the TPEG data on the map, the map data processor 260 reads and outputs map data of a position corresponding to the TPEG data from the second storage unit 270. Here, the second storage unit may be used as the map data DB. The controller 200 controls the overall operation of the terminal 130 and processes the TPEG data as a dynamic icon or image on the map and displays it on the display unit 280. The controller 200 may include the operation state processor 210.

Referring to the operation of the terminal 130 as shown in FIG. 3, when the TPEG data is received, the TPEG processing unit 240 processes the TPEG data of the map included in the system and stores the TPEG data in the first storage unit 250. Table 1 below shows an example of TPEG data stored in the first storage unit 250. That is, the TPEG processing unit 240 analyzes the received TPEG data and converts the TPEG data according to the link ID stored in the map data database of the form as shown in Table 1 below. Therefore, TPEG data, that is, speed information, is stored according to the link ID of the map data.

linkD1 TPEG Data linkD1 TPEG Data linkD1 TPEG Data linkD1 TPEG Data --- ---

The map data processor 260 accesses the map data to be displayed on the display unit 280 together with the TPEG data in the second storage unit 270. The dynamic state processor 210 then determines the TPEG data to be displayed on the display unit 280 and determines a dynamic icon or image according to the color and speed corresponding to the speed of the corresponding road. At this time, the dynamic state processing unit 210 stores the TPEG information of the link ID, that is, speed information, in the dynamic icon management table as shown in Table 2 below, and stores the position (current x, current y) of the icon to be displayed on the display unit 280. do. Here, the dynamic icon management table of Table 2 below stores dynamic icon data according to the link ID stored in the second storage unit 270.

linkD1 speed current x current y linkD2 speed current x current y linkD3 speed current x current y linkD4 speed current x current y --- --- --- ---

The controller 200 displays the TPEG data processed to be displayed in the dynamic state by the dynamic state processor 210 on the map data output from the map data processor 260. That is, the controller 200 updates the screen of the display unit 280 at a specific time interval, and each time the screen is updated, the position of the icon is next based on the speed of the link ID and the current position (current x and current y in Table 2). The position is calculated and displayed on the display unit 280 as shown in FIG. 5 or 6. 5 is an example of displaying an image having a color according to a speed as an icon, and the icon moves along the speed of each road. 6 shows an example of a bar in which a dynamically moving image is expressed. The road is represented by a color representing each speed and the bar-shaped image having a darker color is moved according to the speed. At this time, each icon and the image as shown are displayed in color according to the speed of the link ID.

As described above, when the TEPG data is displayed on the map based on the TEPG DB as shown in Table 1 and the dynamic icon management table as shown in Table 2, the screen of the display unit 280 is updated at specific time intervals. The TEPG data is displayed by icons moving according to their speeds. In this case, an icon (or image) moves fast in a fast road, and an icon (or image) moves in a slow road.

4 is a flowchart illustrating a procedure of receiving TPEG data from the terminal 130 and displaying the TPEG data on a map using a dynamic image according to an exemplary embodiment of the present invention.

Referring to FIG. 4, when the TEPG data is received, the terminal 130 detects it in step 311, and in step 313 converts the TEPG data into TEPG data according to a link ID stored in the map data database, thereby converting the TEPG DB into a TEPG DB. Store in In step 315, the terminal 130 matches and stores the speed data according to the TEPG data and the position (x and y coordinate) information of the icon (or image) to be displayed with a corresponding link ID of the dynamic icon management table. Accordingly, the dynamic icon management table stores speed and icon position data, respectively, by matching the link ID corresponding to each TPEG data.

As described above, in the state of updating the dynamic icon management table each time the TPEG data is received, the terminal updates the screen at regular time intervals. In this case, the screen update time may be set by the user, and when the user does not set the display time, the screen update time may be set to a system set time (default time). When the update display time is reached, the terminal 130 detects this in step 317, and displays the icon in color according to the speed according to the dynamic icon management table in step 319, and moves at the corresponding speed. That is, the terminal 130 updates the screen at set time intervals, and when the screen is updated, the next position is calculated and displayed on the screen based on the link ID and the current position. The icon displayed on the screen is displayed in a color corresponding to the speed of the link ID. In this case, the form displayed on the display unit 280 may be the same as that of FIG. 5 or 6.

The above operation is repeatedly performed until the user ends the traffic information display function. When the user generates a termination command, the terminal 130 detects this in step 321 and terminates the procedure.

4 may be processed by the controller 200 of FIG. 3. That is, the controller 200 may implement the TEPG processing unit, the map data processing unit and the dynamic state processing unit in software, and thus may display the TEPG data in the flow as shown in FIG. 4.

As described above, the traffic information display method according to an exemplary embodiment of the present invention may express the speed information of the road by moving the image, and control the moving speed of the image variably according to the speed of the road when the image is expressed. The color of the image may vary depending on the speed. Therefore, the user of the terminal has an advantage that can quickly and easily check the state information of the road through the terminal.

Claims (8)

In the device for dynamically displaying traffic information, A receiving unit for receiving TPEG data, A TPEG processing unit for converting the TPEG data into TPEG data according to a link identifier of map data; A map data processing unit for processing map data to display the TPEG data; A dynamic state processor configured to manage moving speed and display position information of an image to be displayed by mapping the TPEG data to a link identifier of the map data; And a display control unit configured to display the image on the display unit at a set time at a set moving speed at a set time. The apparatus of claim 1, wherein the TPEG data is speed information of a road, and the link identifier is the road location information on the map. The apparatus of claim 2, wherein the display controller changes the image to a color corresponding to the set movement speed and displays the traffic information. The apparatus of claim 3, wherein the image is an icon image for indicating a speed of movement on a road. 4. The apparatus of claim 3, wherein the image is a bar-shaped image for indicating a moving speed on a road. In the device for dynamically displaying traffic information, Converting the TPEG data into TPEG data according to a link identifier of map data when receiving TPEG data; Managing movement speed and display position information of an image to be displayed by mapping the converted TPEG data to a link identifier of the map data; And displaying the image on the display unit at a set time at a set moving speed at a set position of the map. 7. The method of claim 6, wherein the TPEG data is speed information of a road and the link identifier is the road location information on the map. The method of claim 7, wherein the display controller changes the image to a color corresponding to the set movement speed and displays the traffic information.

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