KR20070036581A - Method for providing public transport information using a tpeg message and encoding and decoding apparatus and method - Google Patents

Abstract

The present invention relates to a method for providing public transportation information using a T-pack message, and an encoding and decoding apparatus and method. For example, various additional information, particularly, a bus, may be included in a TPEG message transmitted in a DMB broadcast signal. Public transport information, such as more efficiently included and transmitted, so that users carrying DMB terminals can easily receive and check various public transport information as well as general traffic information, thereby improving user convenience, It is a very useful invention that can greatly contribute to the activation of digital broadcasting such as DMB broadcasting.

Tippack messages, DMB broadcasts, additional information, road traffic message event containers, multimedia descriptors, public transport information

Description

Method for providing public transport information 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 public transportation information according to the present invention.

21 illustrates an embodiment of a public_transport_information message of public transport information according to the present invention;

22 illustrates an embodiment of a multimedia descriptor for public transportation information according to the present invention,

FIG. 23 illustrates an embodiment of public transportation information guide screens in a DMB 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 method for providing public transport information using a teapack message, and an apparatus and method for encoding and decoding. For example, a TPEG (Transport Protocol Experts Group) message transmitted in a digital multimedia broadcasting (DMB) broadcast signal is transmitted. The present invention relates to a method for providing public transportation information using a packet message for providing various additional information, in particular, public transportation information such as a bus, and an encoding and decoding apparatus and method.

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 Transport Stream (TS), 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, various types of additional information, such as various public transportation information, travel information, tourism information, restaurant information, shopping information, and the like, are more efficiently included and transmitted in the DMB broadcast signal, so that users carrying the DMB terminal may transmit the information. Since there is no solution for receiving and confirming various additional information, there is an urgent need for an efficient solution for this.

Accordingly, the present invention has been created in view of the above circumstances, and includes, for example, various additional information in a TPEG message included in a DMB broadcast signal, particularly public transportation such as a bus. To provide a method and encoding and decoding apparatus and method for providing public transportation information by using a T-pack message to efficiently include and transmit information, so that users carrying a DM terminal can easily receive and confirm a variety of public transportation information The purpose is to.

The public transportation information providing method using the teapack message according to the present invention for achieving the above object, in the teapack message consisting of a message management container, a road traffic message event container, and a teepack (TPEG) location container, In the road traffic message event container, the event description element related to the public transportation information is included and recorded, together with the public transportation information corresponding to the event description element, the main traffic information is recorded in the TPEG location container. Characteristic code information, location coordinate information, and any one or more of the location description information is recorded and provided,

In addition, the encoding method according to the present invention includes a method for encoding traffic information, the method comprising: generating public traffic information corresponding to road event information; Constructing the public transportation information in a component and including 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 of decoding traffic information, comprising: extracting a component in a segment by interpreting a received message; Retrieving road event information from the extracted component; And extracting public traffic 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 public traffic information corresponding to the road event information; Means for organizing the public transportation information into a component and including the message segment in a 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 public transportation information corresponding to the road event information.

Hereinafter, a preferred embodiment of a method for providing public transportation 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 public traffic information, tourist information, shopping information, and the like, and broadcasts them. Transmits to the center 31, the broadcasting center 31 records the additional information in a TPEG message of a predetermined format defined by TPEG technology, and then records a DMB broadcast signal. Will be sent with

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 occurs in the road traffic message event container. Along with the event description element 50 corresponding to (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, Component data 52 of video, and 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 (eg, 00 hex), a component data length (n), and an image data type (image_type or graph_type) 90 ), Multimedia data properties (Multimedia_data_property), and image component data (eg 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 Container) The text data type (text_type), multimedia data attributes, and text component data in bytes are defined and 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, public transportation information, tourism information, restaurant information, which are additional information received through the input device 75 or corresponding to road event information previously stored in the storage 73, Various types of additional information, such as shopping information, are input to the additional information generating 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, a user carrying the DMB terminal can easily check not only traffic information, but also travel information, public transportation information, tourism information, restaurant information, shopping information, etc., and various types of additional information by voice, video, or text. do.

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

In addition, the road traffic message event container includes, for example, public transport type information corresponding to a bus and public transport status information corresponding to a bus delay. Public transport information is recorded as an event-descriptive element, including the 'Public_Transport_Information' message that is already defined in the TPEG message, and the public transport information corresponding to the 'Public_Transport_Information' message. It is written together as a descriptor.

In addition, at least one of default language code information, location coordinates information, and additional location descriptions information is recorded in the teepack location container. As the language code, for example, a unique code value indicating that the language of the public transportation information is Korean may be recorded.

The location coordinate information may include location type information indicating a node of a narrow region, mode type list information indicating a bus, latitude and longitude coordinate values, For example, latitude and longitude coordinate values and descriptors of WGS 84 (World Geodetic System 1984) may be recorded.

In addition, the descriptor may include, for example, a descriptor type indicating a bus stop identifier and a descriptor indicating a bus stop name (eg, an industrial park 5 distance).

In the 'Public_Transport_Information' message, various types of public transport type (public_Transport_type) information and public transport status (public_transport_status) information are recorded and recorded in the multimedia descriptor, as shown in FIG. 21. As described above, any one or more of images, audio, video, and text may be included and recorded. As illustrated in FIG. 20, image data and text data for public transportation information may be included and recorded. .

On the other hand, the text data is, for example, text data for the 'main bus 504 bus' via the bus stop of 'industrial complex 5 streets', and the image data includes the entire transit route of the 'main bus 504 bus'; Image data including the position of the bus moving at the nearest position and the like can be recorded.

In addition, as described above with reference to FIG. 18, the public transportation information includes a modulator 70, a TPEG encoder 71, an additional information generator 72, a storage 73, and a navigation engine 74. ), An encoding device consisting of an input device 75, a memory 76, and the like, is included and transmitted in the encoded T-pack message.

For example, various public transportation information that is received through the input device 75 or additional information corresponding to road event information previously stored in the storage 73 is controlled according to the operation control of the navigation engine 74. The additional information generating unit 72 is input.

In addition, the additional information generation unit 72 converts the public transportation information into at least one of an image, audio, video, and text of a multimedia descriptor and performs signal processing to generate a message segment and generate the TPEG encoder. In 71, the public transport information data of the generated message segment is recorded 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 DTP broadcast 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 public transportation information corresponding to the road event information is extracted, stored in the storage, and displayed on the LCD drive 88.

On the other hand, for example, as shown in FIG. 23, when the user selects 'view public traffic information' among various menu items provided by the DMB terminal, the GPS module 83 detects the detected information. Map image data corresponding to a current location or a specific location that a user arbitrarily selects and inputs is searched and read out in the DMB terminal and displayed on the screen.

Then, when the user selects any one specific location, for example, 'industrial complex 5 streets' and then selects a menu item of 'view bus route bus list', the user passes through the 'industrial complex 5 streets'. After searching and reading the bus numbers in the DMB terminal, as shown in FIG. 23, the bus numbers are displayed on a screen of a bus number list that can be selected by the user. The screen corresponding to 'view bus list' is displayed on the screen by image data and text data stored in advance in the DMB terminal.

Meanwhile, when the user selects and designates a random bus number through the above process, for example, when the trunk bus 504 is selected and designated among a plurality of buses passing through the 'industrial complex 5th street', In addition, the navigation engine 84 searches for the TPEG location container included in the TPEG message, and selects the TPEG message corresponding to '5 industrial streets'.

In addition, the navigation engine 84 displays the current state of the trunk 504 bus via the 'industrial complex 5th street' in text and image by referring to the RTM event container included in the selected TPEG message. For example, as shown in FIG. 23, on the guide screen of the trunk line 504 bus route map, the bus is passing through the former stop 'Gasan Elementary School' toward the 'industrial complex 5th street'. Text and an image indicating the can be displayed.

Accordingly, the user carrying the DMB terminal can easily check public transportation information such as a bus through text and images, for example, in the multimedia descriptor, to inform the state of movement of the corresponding bus. Audio and / or video data may be additionally recorded. In this case, the text and image related to the bus may be displayed on the screen, and the movement state of the corresponding bus may be output as the guide voice or guide image. It becomes possible.

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 public transportation 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 are, for example, various additional information, particularly in a TPEG message transmitted in a DMB broadcast signal. Public transport information such as buses can be more efficiently included and transmitted, so that users carrying DMB terminals can easily receive and check various public transport information as well as general traffic information. It is a very useful invention that can greatly contribute to the improvement of gender, 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 in the road traffic message event container including an event description element related to public transport information, and recording public transport information corresponding to the event description element; And providing one or more of basic language code information, location coordinate information, and additional location description information in the TPEG location container. The method of claim 1, And the public transportation information is recorded and included in the road traffic message event container as a multimedia descriptor. The method of claim 2, The multimedia descriptor, the public transportation information providing method using a teapack message, characterized in that the component data of any one or more of the image, audio, video, and text related to the public transportation information is recorded. The method of claim 2, The multimedia descriptor includes a unique identifier related to public transportation information, component data length, the number of multimedia data, and a multimedia descriptor component. The method of claim 1, The event description element related to the public transport information is a public transport information providing method using a teapack message, characterized in that the Public Transport Information message defined in the teapack message. The method of claim 5, The public transport information message includes public transport type information and public transport status information. The method of claim 1, The location coordinate information, the location type information, mode type list information, latitude and longitude coordinate values, at least one or more of the descriptor is recorded including the public transportation information providing method using a T-pack message. The method of claim 7, wherein And a bus stop identifier and a bus stop name are recorded in the descriptor of the position coordinate information. The method of claim 1, The T-pack message in which the public transportation information is recorded is transmitted in a DM-b broadcast signal. In a method of encoding traffic information, Generating public traffic information corresponding to the road event information; Constructing the public transportation information in a component and including 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 public traffic information is encoding method, 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 public transportation information, the encoding method, characterized in that any one or more of an audio format, a video format, a text format. The method of claim 10, The public transportation information includes public transportation type information, public transportation status information, and discount coupon information. 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 public traffic 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 public traffic information is information added at least one on one lower level in the road event information. The method of claim 16, The public transportation information, the decoding method, characterized in that any one or more of an audio format, a video format, a text format. The method of claim 16, The public transportation information, the encoding method characterized in that it further comprises public transport type information and public transport status information. In the device for encoding traffic information, Means for generating public transportation information corresponding to the road event information; Means for organizing the public transportation information into a component and including the message segment in a 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 public traffic 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 public transportation 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 public transportation information, the encoding apparatus characterized in that it further comprises public transportation type information and public transportation status information. 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 public road 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 public transportation 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 public transportation information, decoding apparatus, characterized in that any one or more of an audio format, a video format, a text format. The method of claim 28, The public transportation information further includes public transportation type information and public transportation status information.

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