KR20070036588A - Method for providing traffic state information of road area using a tpeg message and encoding and decoding apparatus and method - Google Patents

Abstract

The present invention relates to a road segment traffic situation information providing method and an encoding and decoding apparatus and method using a T-pack message, for example, in the TPEG message transmitted in a DMB broadcast signal, various additional information, in particular traffic By more efficiently including and sending traffic state information on congested road sections, users carrying DMB terminals can easily receive and check traffic status information for various road sections as well as general traffic information. It is a very useful invention that can greatly contribute to the convenience of the user and the activation of digital broadcasting such as DMB broadcasting.

Tippack message, DMB broadcast, additional information, road traffic message event container, multimedia descriptor, road segment information, traffic status information

Description

{Method for providing traffic state information of road area using a TPEG message and encoding and decoding apparatus and method}

1 illustrates an embodiment of a general terrestrial DMB broadcasting system.

2 illustrates an embodiment of a general satellite DMB broadcasting system,

3 illustrates an embodiment of a terrestrial DMB broadcasting system to which a method for providing additional information using a TPEG message according to the present invention is applied;

4 and 5 illustrate a configuration and an embodiment of a TPEG message according to the present invention,

6 illustrates an embodiment of event description elements in accordance with the present invention;

7 to 10 show an embodiment of a multimedia descriptor according to the present invention,

11 to 17 illustrate an embodiment of a TPEG table for each type of audio, video, multimedia data, and text according to the present invention.

18 shows a configuration of an encoding apparatus according to the present invention,

19 shows a configuration of a decoding apparatus according to the present invention,

20 illustrates a configuration of a recorded TPEG message including road segment traffic condition information according to the present invention.

21 illustrates an embodiment of a Network Performance message according to the present invention.

22 illustrates an embodiment of a multimedia descriptor for road segment traffic situation information according to the present invention;

FIG. 23 illustrates an embodiment of road segment traffic condition information guide screens in a DM terminal to which the present invention is applied.

※ Explanation of code for main part of drawing

30: Content Source 31: Broadcasting Center

32: transmission tower 33: DMB terminal

34: Traffic / Travel Information Collection Center 35: Traffic / Travel Information Source

The present invention relates to a road segment traffic condition information providing method and an encoding and decoding apparatus and method using a T-pack message, for example, TPEG (Transport Protocol Experts Group) transmitted in a digital multimedia broadcasting (DMB) broadcast signal The present invention relates to a method for providing road segment traffic situation information, a encoding and decoding apparatus, and a method for providing traffic section information using a packet message to provide various additional information, in particular, traffic condition information of a road section in which traffic is congested. .

In general, DMB (DMB) broadcasting is a service capable of receiving TV video, radio, and text broadcasting while moving using digital broadcasting technology, and is capable of CD-level sound quality and data or video services. It is a multimedia mobile broadcasting service that combines digital communication and broadcasting providing TV quality.

Meanwhile, the DMB broadcast includes terrestrial DMB broadcast and satellite DMB broadcast. For example, as illustrated in FIG. 1, the terrestrial DMB broadcast system includes a content source 10, a broadcast center 11, and a transmission tower ( 12) and the DM terminal 13 and the like.

In addition, the terrestrial DMB broadcasting system uses MPEG-2 TS (Transport Stream), and uses a H.264 video encoding and BSAC audio encoding technique, which is a multimedia compression technique, in a higher layer, and is a large antenna installed on the ground. To transmit the broadcast wave.

In addition, the terrestrial DMB broadcasting system adopts Eureka-147, which is a technical standard of European digital radio broadcasting (DAB), as a basic standard, uses a 200 MHz band as a frequency, and has a high efficiency of a frequency band. This applies.

On the other hand, in the satellite DMB broadcasting system, for example, as illustrated in FIG. 2, the program provider 20, the satellite DMB broadcasting center 21, the satellite 22, the gap filter 23, and the DMMB terminal ( 24) and the like, the gap filter 23 serves as a ground repeater.

The satellite DMB broadcast system uses a 2.630 to 2.655 GHz band of an S band, which is a much higher frequency band than the terrestrial DMB broadcast system, and the terrestrial DMB broadcast is performed through a terrestrial transmission tower. The satellites outside the atmosphere will act as repeaters.

In addition, in recent years, a new communication technology for transmitting and including traffic information in a message of a predetermined format in a DM broadcast signal such that users carrying the DM terminal can receive and confirm traffic information; For example, standardization of the Transport Protocol Experts Group (TPEG) technology is under discussion among related companies.

However, in the DMB broadcast signal, various types of additional information such as various public transportation information, travel information, tourism information, restaurant information, shopping information, and traffic status information on a road section in which traffic is congested, Since there is no solution for efficiently including and transmitting the DMB terminal to receive and confirm various additional information, there is an urgent need for an efficient solution.

Accordingly, the present invention was created in view of the above situation, and for example, in a TPEG message included in a DMB broadcast signal, various additional information, in particular, traffic conditions for a road section in which traffic is congested Method for providing road segment traffic status information and encoding and decoding apparatus using a T-pack message to easily include and transmit state) information so that users carrying DMB terminals can easily receive and confirm various accident-related situation information. The purpose is to provide a method.

Road section traffic situation information providing method using a teapack message according to the present invention for achieving the above object is in a teapack message consisting of a message management container, a road traffic message event container, and a TPEG location container. In the road traffic message event container, an event description element related to road segment information is included in the road traffic message event container, and traffic condition information corresponding to the event description element is recorded together, and the TPEG location container is recorded. Characterized in that any one or more of basic language code information, location coordinate information, and ancillary location description information is recorded and provided.

In addition, the encoding method according to the present invention includes a method for encoding traffic information, comprising: step 1 of generating road segment traffic situation information corresponding to road event information; Constructing the road segment traffic condition information in a component and including the message segment in a message segment; And configuring a message sequence including the message segment.

In addition, the decoding method according to the present invention includes a method for decoding traffic information, comprising: 1 step of extracting a component in a segment by interpreting a received message; Retrieving road event information from the extracted component; And extracting road segment traffic situation information corresponding to the road event information.

In addition, the encoding apparatus according to the present invention, the device for encoding traffic information, comprising: means for generating road segment traffic situation information corresponding to the road event information; Means for constructing the road segment traffic condition information in a component to include in the message segment; And means for constructing a message sequence comprising said message segment,

In addition, the decoding apparatus according to the present invention comprises: a device for decoding traffic information, comprising: means for extracting a component in a segment by interpreting a received message; Means for retrieving road event information from the extracted component; And means for extracting road segment traffic situation information corresponding to the road event information.

Hereinafter, a preferred embodiment of a method for providing road segment traffic state information using a teapack message and an encoding and decoding apparatus and method according to the present invention will be described in detail with reference to the accompanying drawings.

First, the method of providing additional information using the TIP message according to the present invention may be applied to various types of digital broadcasting systems such as a terrestrial DMB broadcasting system or a satellite DMB broadcasting system. For example, the terrestrial wave to which the present invention is applied As shown in FIG. 3, the DMB broadcasting system includes a content source 30, a broadcasting center 31, a transmission tower 32, a DMMB terminal 33, and the like, and a traffic and travel information source 35. ), Traffic and travel information collection center 34, and the like.

Meanwhile, the traffic and travel information collection center 34 collects various types of additional information such as various traffic information and travel information, as well as road segment traffic situation information, tourist information, shopping information, and the like. And transmits the additional information to the broadcasting center 31, and records the additional information in a TPEG message of a predetermined format defined by the TPEG technology, and then stores the additional information in DMB. ) Will be transmitted along with the broadcast signal.

In addition, the DM terminal 33 extracts and decodes a TIP message received together with the DM broadcast signal, and outputs the audio or video to the user, thereby displaying more various additional information to the user carrying the DM terminal. It can be provided, which will be described in detail as follows.

4 illustrates a configuration of a TPEG message according to the present invention. For example, a TPEG message defined by the TPEG technology includes a message management container 40 and a road traffic message event container. (Road Traffic Message Event Container) 41, and TPEG Location Container 42.

Meanwhile, in the present invention, an event descriptive element 43 is recorded in a road traffic message event container 41 of the teepack message, for example, as shown in FIG. 4. As one may further define a multimedia descriptor 44 for recording various different types of additional information.

Further, among the thirteen event-descriptive elements 43 such as accidents, obstacles, weather, and the like, additional information corresponding to any one of the multimedia descriptors 44 is used as the multimedia descriptor 44. It is recorded in the traffic message event container 41.

For example, in the broadcasting center 31, when generating a TPEG message to be included in a DM broadcast signal, as shown in FIG. 5, an accident (in the RMT-Event Container) is generated. Along with the event description element 50 corresponding to the Accidents, additional information corresponding to the event description element 50 is recorded and included in the multimedia descriptor 51. The multimedia descriptor includes images, audio, and video. And component data 52 of text may optionally be recorded.

That is, in the present invention, as shown in Fig. 6, various types of additional information corresponding to 13 event description elements defined in the TPEG technology are added to the road traffic message event container of the TPEG message. The multimedia descriptor 60 for recording is newly defined.

As illustrated in FIG. 7, the multimedia descriptor 60 includes a unique identifier (eg, id = 02 hex), a component data length (n) in units of bytes, a number of multimedia data, and a multimedia descriptor component. Are recorded to include.

FIG. 8 illustrates a multimedia descriptor component template. The multimedia descriptor component template includes a unique identifier (eg, id = x hex), a component data length n in bytes, and component data. Are recorded to include.

For example, as shown in FIG. 9, when the multimedia descriptor component represents an image, a unique identifier (for example, 00 hex), a component data length (n), and an image data type (image_type or graph_type) ( 90), a multimedia data property (Multimedia_data_property), and image component data (eg, a graphic file) are recorded.

And FIG. 10. Table information indicating the type 90 of the image component data in FIG. 9, for example, the Graphic Type Selection Table information includes BMP (Bitmap), PNG (Portable Network Graphic), and JPG (Joint Photographic). Various types of type information such as experts group are recorded and maintained.

As shown in FIG. 11, if the multimedia descriptor component is audio, a unique identifier (eg, id = 01 hex), a component data length (n) in bytes, and a road traffic message The audio data type (audio data_type), the multimedia data attribute (Multimedia_data_property), and the audio component data defined on the road traffic message event container 41 are recorded and included in units of bytes.

As shown in FIG. 12, if the multimedia descriptor component is video, a unique identifier (eg, id = 02 hex), a component data length (n), and a road traffic message event container are included. Video data type (video_type) and multimedia data attributes defined on the container 41 and video component data in bytes.

In addition, as shown in FIG. 13, if the multimedia descriptor component is text, a unique identifier (for example, id = 03 hex), a component data length (n), and a road traffic message event container A text data type (text_type) defined on the container 41, multimedia data attributes, and text component data in bytes are recorded.

As shown in FIG. 14, audio type (Audio_type) information is recorded and managed as the teapack table information of a predetermined format, respectively. For example, it is recorded by 'TPEG table rtm51' 110 of FIG. In the audio type information managed, audio format information such as MPEG 1 audio layer 1, MPEG 1 audio layer 2, MPEG 1 audio layer 3, and Uncompressed PCM audio is recorded and managed.

On the other hand, the video type (Video_type) information of FIG. 15 is recorded and managed by the 'TPEG table rtm52' 120, for example, as shown in FIG. 12. The video type information includes MPEG 1 video and MPEG 2. Video format information such as video, MPEG 4 video, and H.263 is recorded and managed.

For example, as illustrated in FIG. 12, the multimedia data property (Multimedia_data_property) information of FIG. 16 is recorded and managed by the 'TPEG table rtm53' 121, and the corresponding component data is included in main information and main information. Information indicating that component data of image, audio, video, and text corresponding to additional information, discount coupon, cinema coupon, parking coupon, restaurant coupon, and the like is recorded and managed.

For example, as illustrated in FIG. 13, text type (Text_type) information of FIG. 17 is recorded and managed by 'TPEG table rtm54' 130, and the text type information includes plane text, rich edit text, html, xml, etc. are recorded.

On the other hand, the additional information is, for example, as shown in Fig. 18, the modulator 70, the TPEG encoder 71, the additional information generator 72, the storage 73, the navigation engine 74, input Encoded by the device 75 and the memory 76 or the like, the transmission is included in the encoded T-pack message.

For example, various traffic information, travel information, road section traffic status information, tourism information, restaurant, which are additional information received through the input device 75 or corresponding to road event information previously stored in the storage 73, may be used. Various types of additional information, such as information and shopping information, are input to the additional information generation unit 72 according to the operation control of the navigation engine 74.

In addition, the additional information generation unit 72 converts the various types of additional information into at least one of an image, audio, video, and text of a multimedia descriptor, and generates a message segment by generating a message segment. In the TPEG encoder 71, the additional information data of the generated message segment is recorded and included as a multimedia descriptor in the road traffic message event container among the TPEG message sequences.

In addition, the modulator 70 modulates the TPEG message including the multimedia descriptor as described above, and outputs the TPEG message together with the DMB broadcast. The DMB terminal receives the same, for example, in the DMB terminal. As shown in FIG. 19, the tuner 80, the demodulator 81, the TPEG decoder 82, the GPS module 83, the navigation engine 84, the input device 85, the storage 86, and the memory 87, the LCD drive 88, the LCD panel 89, and the like may be included.

Meanwhile, the DMB broadcast signal received through the tuner 80 is demodulated by the demodulator 81 and then decoded by the TPEG decoder 82, and the navigation engine 84 performs the TPEG. The TPEG message decoded by the decoder 82 is interpreted to extract the components in the segment.

After searching for road event information in the extracted component, additional information corresponding to the road event information is extracted, stored in the storage, and displayed on the LCD drive 88.

Accordingly, the user carrying the DMB terminal can easily check not only traffic information but also various types of additional information such as travel information, tourism information, restaurant information, shopping information, road traffic condition information, etc. by voice, video or text. It becomes possible.

Meanwhile, FIG. 20 illustrates an embodiment of a configuration of a recorded TPEG message including road segment traffic condition information according to the present invention. The TPEG message includes a message management container and a road traffic message event. It consists of a container (RTM Event Container) and a TPEG Location Container.

In addition, road area information and traffic state information are recorded and recorded in the road traffic message event container. The road section information is, for example, as shown in FIG. 20. Performance information indicating a road segment affected by heavy traffic, speed information, delay information, and travel_time information in the corresponding road segment may be included. Descriptive element, included in the 'network performance' message already defined in the TPEG message.

Traffic state information corresponding to the 'network performance' message is recorded together as a multimedia descriptor in the road traffic message event container, and in the teepack location container, default language code information and location One or more of Location Coordinates information and Additional Location Descriptions information is recorded. The default language code is, for example, a unique code value indicating that the language is Korean. Can be recorded,

Meanwhile, the location coordinate information includes location type information indicating a node area corresponding to a road section, mode type list information indicating 'road', and corresponding information. Link ID, which is identification information indicating a road section, is included and recorded.

21, the performance, speed, delay, communication time information, and the like are recorded in the 'network performance' message, and the multimedia descriptor includes an image as shown in FIG. Any one or more of text, audio, and video are recorded, and as shown in FIG. 20, only image data of traffic conditions of each road section is recorded, or text data, audio (Audio) data, video data, and the like may further be recorded.

Meanwhile, the traffic condition information may be provided as a video in a news form. The traffic condition information and the road section information may be the modulator 70 and the TPEG encoder 71 as described above with reference to FIG. 18. In addition, the encoding apparatus is configured to include the additional information generator 72, the storage 73, the navigation engine 74, the input device 75, the memory 76, and the like, and is transmitted in the encoded T-pack message.

For example, various road section information and traffic condition information corresponding to the additional road information received through the input device 75 or corresponding to road event information previously stored in the storage 73 may be stored in the navigation engine ( According to the operation control of 74, it is input to the additional information generating unit 72.

In addition, the additional information generating unit 72 converts the traffic state information corresponding to each road section into at least one of an image, audio, video, and text of a multimedia descriptor, and generates a message segment. The TPEG encoder 71 records and records the traffic state information data of the generated message segment as a multimedia descriptor in the road traffic message event container of the TPEG message sequence.

In addition, the modulator 70 modulates the TPEG message including the multimedia descriptor as described above, and outputs the TPEG message together with the DMB broadcast. The DMB terminal receives the same, for example, in the DMB terminal. As described above with reference to FIG. 19, the tuner 80, the demodulator 81, the TPEG decoder 82, the GPS module 83, the navigation engine 84, the input device 85, the storage 86, The memory 87, the LCD drive 88, the LCD panel 89, and the like may be included.

Meanwhile, the GPS module 83 may be replaced with a CDMA module, and the DMB broadcast signal received through the tuner 80 is demodulated by the demodulator 81 and then the TPEG decoder 82. Decoded by the navigation engine 84 interprets the TPEG message decoded by the TPEG decoder 82 to extract components within the segment.

After retrieving the road event information from the extracted component, the road section information and the traffic condition information corresponding to the road event information are extracted, stored in the storage, and displayed on the screen through the CD drive 88. Be sure to

On the other hand, for example, as shown in FIG. 23, when the user selects 'view map traffic information' from various menu items provided by the DMB terminal to display a traffic map screen, the navigation The engine 84 searches for the RTM event container included in the TPEG message.

When road section information and traffic condition information are found in the RTM event container, for example, as illustrated in FIG. 23, marks and numbers corresponding to road sections where traffic congestion has occurred (eg, 1,2, 3) is displayed on the screen, and when the user selects '1' corresponding to the 'road in front of the Hyochang Park', as shown in FIG. 23, the traffic state information of the corresponding road section found in the TPEG message is displayed. By decoding, an image is displayed on the screen together with the message of 'OO road traffic situation'. The traffic state information may be displayed as an image and text of a still image or as a video in a news form.

Accordingly, the user carrying the DMB terminal can easily check the traffic state information for the particular road section desired by the user through the image and text of the still image or the video in the news form.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The road segment traffic situation information providing method and the encoding and decoding apparatus and method using the T-PACK message according to the present invention constructed and constructed as described above may include, for example, various additional information in a TPEG message included in a DMB broadcast signal. In particular, by more efficiently including traffic state (Traffic State) information for the section of the traffic congestion, users carrying DMB terminals can easily receive and confirm the traffic status information of various road sections as well as general traffic information It is a very useful invention that can greatly contribute to the improvement of user convenience and the activation of digital broadcasting such as DMB broadcasting.

Claims (33)

In a teepack message comprising a message management container, a road traffic message event container, and a teepack (TPEG) location container, Recording and including event description elements related to road segment information in the road traffic message event container, together with traffic state information corresponding to the event description elements, And providing at least one of basic language code information, location coordinate information, and additional location description information in the TPEG location container. The method of claim 1, The traffic condition information is provided in the road traffic message event container, the road segment traffic condition information providing method using a teapack message, characterized in that the recording. The method of claim 2, In the multimedia descriptor, the traffic condition information providing method for road section using the TIP message, wherein traffic condition information related to the road section information is recorded as one or more component data among images, audio, video, and text. The method of claim 2, The multimedia descriptor, the road segment traffic situation information providing method using a teapack message, characterized in that the unique identifier associated with the traffic information, component data length, the number of multimedia data, and the multimedia descriptor component is recorded. The method of claim 1, The event description element related to the road segment information is a road segment traffic condition information providing method using a teapack message, characterized in that the network performance message defined in the teapack message. The method of claim 5, The network performance message, road section traffic condition information providing method using a teapack message, characterized in that any one or more of the congestion section information, speed information, delay information, communication time information is recorded. The method of claim 1, The location coordinate information, road type traffic condition information providing method using a T-pack message, characterized in that any one or more of location type information, mode type list information, road segment identification information, and descriptors are recorded. The method of claim 7, wherein The location type information indicates a narrow node, the mode type litt information indicates a road, and the road section identification information indicates a unique link ID for each road section. Method of providing traffic status information using road section. The method of claim 1, The teapack message recording the road segment information and the traffic condition information is included in the DMB broadcast signal and transmitted. In a method of encoding traffic information, Generating road section traffic situation information corresponding to the road event information; Constructing the road segment traffic condition information in a component and including the message segment in a message segment; And And a three step of constructing a message sequence including the message segment. The method of claim 10, And wherein said segment represents a road traffic message. The method of claim 11, And the road event information is one level lower than the road traffic information. The method of claim 10, The road segment traffic condition information is encoding information, characterized in that at least one or more information is added on one level lower level in the road event information. The method of claim 10, The road segment traffic situation information includes any one or more of an audio format, a video format, and a text format. The method of claim 10, The road segment traffic situation information is an encoding method, characterized in that for supporting a video in the form of news. In the method for decoding traffic information, Analyzing the received message and extracting a component in the segment; Retrieving road event information from the extracted component; And And extracting road segment traffic situation information corresponding to the road event information. The method of claim 16, And said segment represents a road traffic message. The method of claim 17, And the road event information is one level lower than the road traffic information. The method of claim 16, And the accident-related situation information is information added to at least one level lower than one level in the road event information. The method of claim 16, The road segment traffic situation information includes one or more of an audio format, a video format, and a text format. The method of claim 16, And the road segment traffic condition information is decoded and displayed at the time when the corresponding mark number displayed on the map image is selected by the user. In the device for encoding traffic information, Means for generating road segment traffic situation information corresponding to the road event information; Means for constructing the road segment traffic condition information in a component to include in the message segment; And And means for constructing a message sequence comprising said message segment. The method of claim 22, And said segment represents a road traffic message. The method of claim 23, wherein And the road event information is one level lower than the road traffic information. The method of claim 22, The road segment traffic situation information is encoding device, characterized in that at least one or more information is added on one level lower level in the road event information. The method of claim 22, The road segment traffic situation information, encoding apparatus, characterized in that any one or more of an audio format, a video format, a text format. The method of claim 22, The road segment traffic situation information is an encoding device, characterized in that for supporting a video in the form of news. An apparatus for decoding traffic information, Means for interpreting the received message to extract components in the segment; Means for retrieving road event information from the extracted component; And And means for extracting road segment traffic situation information corresponding to the road event information. The method of claim 28, And said segment represents a road traffic message. The method of claim 29, And the road event information is one level lower than the road traffic information. The method of claim 28, And the road segment traffic condition information is information added to at least one level on one level lower level in the road event information. The method of claim 28, The road segment traffic situation information includes one or more of an audio format, a video format, and a text format. The method of claim 28, And the road segment traffic situation information is decoded and displayed at the time when the corresponding mark number displayed on the map image is selected by the user.

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