KR100829388B1 - Method of transmitting service management information in transmission and reception of TV information file using broadcasting network - Google Patents

Abstract

According to the present invention, in transmitting TPEG information for a traffic and travel information (TTI) service using a one-way broadcasting network, a location reference used by a TSM (Telematics Service Provider) and a terminal ( LOC (Location Referencing) Provides a means to maintain consistency of information so that TPEG information for traffic and travel information services provided by the TSP center can be matched and used by the terminal, and each TPEG application service is configured. The present invention relates to a method of processing / managing information most efficiently for each application service by informing a terminal of a file configuration and an update time.

The present invention provides a method for processing a reception of a TPEG information file in a mobile broadcasting terminal, the method comprising: receiving broadcast channel configuration information for traffic information from program programming information; Identifying individual services (SNI, CTT, RTM, etc.) of the TPEG from the broadcast channel configuration information for the traffic information; Receiving a management information file such as an SNI file or TPEG.txt using the individual service identification information of the TPEG; Parsing the TPEG.txt and the application service management information file of the SIN to obtain management information such as node / link version, compression status, compression scheme, file configuration information for an application service, and the like; And receiving data corresponding to an application service using the management information.

Traffic, TPEG, Broadcast, Congestion, Channel, SNI, Parsing

Description

Method for delivering the TPEG service management information on broadcasting network

1 is a diagram showing the configuration of a TPEG information file transmitted and received by a mobile broadcasting terminal according to an embodiment of the present invention.

2 is a diagram illustrating an example of information transmission using SNI according to an embodiment of the present invention.

3 is a flowchart illustrating a method of processing transmission and reception of a TPEG information file in a mobile broadcasting terminal.

4 is a diagram briefly illustrating transmission of a TPEG information file for providing traffic / travel information in a digital broadcasting network according to the prior art.

<Explanation of symbols for the main parts of the drawings>

S210: Channel information recognition step S220: TPEG individual service recognition step

S230: management information file receiving step S240: management information obtaining step

S250: Receiving application service information file step S260: Service presentation step

The present invention relates to a method for transmitting management information in transmission and reception of a TPEG information file using a broadcasting network, and transmits the management information for the entire service that cannot be transmitted and received within the TPEG standard in a separate file or field to the terminal. This chapter is about how to maintain the consistency of services by acquiring the version of the location reference information used in the TSP center and the file configuration information for individual TPEG application services.

In general, digital broadcasting (digital television broadcasting, digital satellite broadcasting, digital audio broadcasting, etc.) systems include multimedia such as transportation / travel information (TTI), electronic program guide (EPG), and game contents. Data broadcast service is provided or will be provided.

In order to transmit multimedia services such as traffic / travel information through digital broadcasting network and mobile communication / internet network, traffic / traveler information obtained from each information collecting device or information collection center is appropriate to the transmission environment and capacity of each network. It must be provided at a data rate and in a standardized format to meet different national standards or transmission systems.

In response to this need, in 1997, the European Broadcasting Union (EBU) formed the B / TPEG project group to develop a new protocol for transporting traffic / travel information in a multimedia environment. One year later, the B / TPEG group officially published the specifications for TPEG-SSF (Part 2) and TPEG-RTM (Part 4). Here, TPEG-SSF is used in the entire application of TPEG and describes grammar, sentence and frame structure, and TPEG-RTM is a standard for transmitting a traffic information message.

CEN TC 278 WG 4 formed a project group containing B / TPEG members, and since 1999, has developed two standards (Part 3 and Part 1) to support services. The TPEG-SNI (Part 3) describes information about services and networks, and the TPEG-INV (Part 1) defines information management for prefaces, numbering systems, and development versions.

In April 2000, the B / TPEG Group published the revised standards for parts 1 to 4, and in November 2001, the TPEG-Loc standard, a reference to location information, and the TPEG-PTI Part 5) The specification is defined. TPEG can be applied to various digital transmission media having an appropriate hierarchy, and TPEG messages are used to transmit TTI information from the service provider's database to the user's terminal.

TPEG enables the addition of new functions and modification of protocols without interfering with the operation of previous receivers or decoders, especially for efficient one-to-many transmission of information through broadcast systems. It can be widely used for the required application. It is also suitable for one-to-one or multicast applications and is designed to be easily included in Internet protocols.

The TPEG specification documents defined so far are:

-TPEG-INV (Part 1): management of preface, numbering system and version

TPEG-SSF (Part 2): Definition of the syntax, semantics and frame structure of TPEG.

-TPEG-SNI (Part 3): Definition of information management for service and network information

-TPEG-RTM (Part 4): Structure definition for road traffic information transmission

-TPEG-PTI (Part 5): Definition of structure for transmission of public transport information

-TPEG-Loc (Part 6): Structure definition for transmitting related information and linked location information

As such, traffic / travel information services defined or standardized in the TPEG Forum include Road Traffic Message (RTM), Public Transport Information (PTI), and Parking Lot Information (PKI). Parking Information (CTI), Congestion and Travel Time Information (CTI), Weather Information (WEA), and Environmental Information Alerts (EIA).

However, as shown in FIG. 4, the prior art uses only latitude / longitude coordinates as the location reference (LOC) standard, and since the specification is defined under the intention that the transmission network can be applied regardless of a communication network or a broadcasting network, Therefore, the details should be defined separately. Since the two-way communication is not possible when using the broadcasting network, the traffic information service center provides the same information to all the terminals without knowing the environment of the terminal at all. In the ISO international standard, latitude / longitude coordinates are used as location referencing (LOC) information, but in the Congestion and Travel Time Information (CTT) standard established in Korea, location reference information is expressed by node / link. In addition, the standard was introduced and the information was expressed by the national standard node / link established by the Ministry of Construction and Transportation. However, since the node / link information must be continuously updated according to frequent changes of the road, when the node / link version used by the TSP center and the node / link version used by the terminal are different, the traffic and travel information received by the terminal is properly corrected. You may encounter problems that you cannot use.

In addition, in the terminal, information for each application service is transmitted as a file, and the method of managing the file and updating the information in the terminal for each application service is different, but there is no way to know the overall configuration information of the files for each application service. There is a problem.

In order to solve the above problems, the present invention transfers management information for overall service management in a separate file or SNI information file and transfers the version of the location reference (LOC) information used in the application service between the TSP center and the terminal. It is an object of the present invention to provide a method for managing configuration and obtaining configuration information about files constituting each application service in a terminal.

In order to achieve the above object, a method for processing transmission and reception of a TPEG information file according to an aspect of the present invention in a mobile broadcasting terminal, the method comprising: receiving broadcast channel configuration information for traffic information from program programming information; Identifying individual services (SNI, CTT, RTM, etc.) of the TPEG from the broadcast channel configuration information for the traffic information; Receiving a management information file such as an SNI file or TPEG.txt using the individual service identification information of the TPEG; Parsing the management information file of the TPEG.txt or the SNI file to obtain management information such as a node / link version, compression status, a compression scheme, and file configuration information for an application service; And receiving data corresponding to an application service using the management information.

The computer-readable recording medium of the TPEG information file according to another aspect of the present invention includes an update, a version, a type, a node / link, A management information file named TPEG.txt that includes a simple map, a compression, and a component; And a plurality of SID-A.SID-B.SID-C_SCID_fileIndex.ext files for data of the TPEG application service.

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

1 to 3, a method of transmitting and receiving a file in a mobile broadcasting terminal according to an embodiment of the present invention will be described. FIG. 1 shows TPEG information transmitted and received in a mobile broadcasting terminal according to an exemplary embodiment of the present invention. FIG. 2 is a diagram showing the configuration of a file, and FIG. 2 is a diagram showing an example of information transmission using an SNI according to an embodiment of the present invention, and FIG. It is a flow chart.

First, as shown in Figure 1, the configuration of the TPEG information file is updated (update), version (version), type (type), node / link (node / link), summary map (simple map), compression (compress) ) And a TPEG.txt file including components and a plurality of SID-A.SID-B.SID-C_SCID_fileIndex.ext files for data of the TPEG application service.

The meanings and conventions of each item of the TPEG.txt file are as follows. The regulation is a general regulation, and the data presentation method may be different.

Update is a value indicating the update time of TPEG.txt, which is expressed in the date and time, and the date and time are expressed in the form of yyyy-mm-dd and hh: mm: ss according to the ISO 8601 standard.

The terminal only sees the update line and compares the TPEG.txt file version previously received by the terminal to see if the TPEG.txt has changed. Version control at the file level parses the entire file at the terminal. By determining whether a file is updated without doing or decoding, it is possible to avoid duplicate parsing or decoding of a file of the same version in the terminal, thereby reducing the CPU processing burden.

The version is a value indicating the release date of the currently applied TPEG standard, in the form of yyyy-mm-dd according to ISO 8601.

Type is an extension value indicating a file type and has bin and xml. When compression is applied, an extension corresponding to a compression method may be additionally added.

The node / link is a version of the national standard node / link used for location reference and must be given a version and release date by the Ministry of Construction and Transportation, which establishes and manages the standard node / link. The date and time shall be in accordance with the ISO 8601 standard. It is expressed in the form yyyy-mm-dd and hh: mm: ss.

If the node / link version sent by the traffic information service center (TSP center) and the node / link version used by the map embedded in the terminal do not match by passing the version and renewal date for the standard node / link to the terminal terminal. The user of may be informed of a map update.

A simple map is managed by a service provider that provides a summary map service as version information for additional data nodes / links that it provides for the summary map. The version information has a value from 0 to 99999 and is given again from 0 after 99999.

For date and time information, the summary map information is the release date and time, and the date and time are expressed in the form of yyyy-mm-dd and hh: mm: ss according to the ISO 8601 standard.

Compress indicates by which compression method all TPEG applications of the line are compressed. If not compressed, the value is "NONE". If it is compressed, the compression method used is represented as a string, and a compression method such as "GZIP" can be defined. When the terminal receives the compressed data file with the compression extension, the terminal decompresses the data using the corresponding COMPRESS method.

A component is a list of individual service components and consists of SID-A.SID-B.SID-C SCID AID Number_of_files <date> <time>. The number of files provided by the individual service in SID and SCID is indicated in Number_of_files, and AID uses the value set in the TPEG specification as an identifier for the application service indicated by the application service information files. <date> and <time> indicate the date and time of the latest information update, and the date and time are expressed in the form of yyyy-mm-dd and hh: mm: ss according to ISO 8601 standard. The terminal may know whether the service component data is updated or output the version information of the current data on the screen if the user desires it.

In the above description, the management information is transmitted using TPEG.txt. However, as shown in FIG. 2, the information defined in TPEG.txt is defined using "Service description" and "Free text" defined in the SNI standard. It can also be sent to the terminal. In this case, "Service description" is originally defined to transmit information to identify a service to a user, such as "A broadcaster's TPEG service", and "Free text" is "a distinction between an application within a service and its scope". It is defined to

The meaning in the SID-A.SID-B.SID-C_SCID_FileIndex.ext file is as follows.

SID-A.SID-B.SID-C is a TPEG Service ID (SID) for service providers at the service frame level, which is assigned a unique value globally.

SCID is a service component identifier assigned by SID. It is used to distinguish whether the corresponding service component is SNI or CTT. SCID can be allocated by the service provider. However, 0 is used for SNI.

FileIndex is given from 0 and expresses the order in the whole file when one service component is provided divided into several files in one SID and SCID.

ext can be a file extension such as bin or xml. For compressed files, you can add a compression extension. In this case, the file name is SID-A.SID-B.SID-C_SCID_FileIndex.ext.compression_ext.

On the other hand, if the file for an individual application service is a * .bin file, it contains the TPEG binary data to be delivered. The configuration inside the file is defined as "Guidelines for TPEG on the Internet (B / TPEG PG02 / 080)". Follow.

Hereinafter, a method of processing transmission and reception of a TPEG information file by a mobile broadcasting terminal will be described with reference to FIG. 3.

The method of processing the transmission and reception of the TPEG information file in the mobile broadcasting terminal includes channel information recognition step (S210), TPEG individual service recognition step (S220), management information file reception step (S230), management information acquisition step (S240), and application service. Information file receiving step (S250) and service presentation step (S260).

In the channel information recognizing step (S210), the program information is received and information constituting the traffic information channel is recognized from the received program information.

In the TPEG individual service recognition step (S220), the broadcast channel configuration information for traffic information is extracted from the entire organization information received in the channel information recognition step (S210), and the individual services (SNI, CTT, RTM, etc.) of the TPEG are identified. When requested by the application program of the terminal, it is possible to deliver the organization information on the requested TPEG service.

In the management information file receiving step (S230), before reading the data on the TPEG application service required by the application currently running in the terminal by using the TPEG individual service configuration information recognized in the TPEG individual service recognition step (S220) The management information file for the entire TPEG service is read. In the management information acquisition step (S240), the management information file received in the management information file receiving step (S230) is parsed to obtain management information for the entire TPEG service.

In the application service information file receiving step (S250), the TPEG service information file requested by the application program of the terminal is received by using the organization information on the individual TPEG application service recognized in the TPEG individual service recognition step (S220) and sent to the terminal application. To pass.

If the application program of the terminal requests congestion information, if the congestion information received through the broadcasting network includes information about a link not included in the congestion information database possessed by the mobile broadcasting terminal, a new link entry is added and the broadcasting network is added. If the received congestion information includes information on a link stored in the congestion information database possessed by the mobile broadcasting terminal, the stored congestion information is updated with newly received congestion information.

In addition, the effective time value (T) of the congestion information is set, and if the current time is greater than the MGT + T value based on the message generation time (MGT) of the received congestion information (CTT) message, the message is invalidated and deleted from the terminal. .

In the service presentation step (S260), by matching the data received in the application service information file receiving step (S250) with the map image stored in advance in the terminal to provide a summary map information service or using the map embedded in the terminal to provide dynamic directions To provide services.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive.

As described above, the present invention transmits the node / link version provided by the TSP center to the terminal in transmitting TPEG information using a unidirectional broadcasting network, and notifies the terminal user of the necessity of upgrading the electronic map embedded in the terminal. Traffic information service center due to inconsistency of node / link information by maintaining / managing the version of node / link information used in traffic information service center (TSP center) and the version of node / link information used in terminal. Application service file configuration information such as the total number of files for the files constituting each application service because it solves the problem that the information provided by the terminal can not be used in the terminal, and the processing of the files constituting each application service may be different It is delivered to the terminal to enable the file processing of the terminal.

In addition, the present invention can provide the user with traffic / travel information through the TPEG information file efficiently in various systems as well as a specific system by processing the transmission and reception of the TPEG information file regardless of the type or system of the network.

Claims (17)

A method of processing service management information in a mobile broadcast terminal in transmission and reception of a TPEG information file, A) receiving information constituting a traffic information channel from the received program programming information; B) identifying individual services of the TPEG from the configuration information of the traffic information channel; C) receiving a management information file using the individual service identification information of the TPEG according to step B); D) parsing the management information file of step C) to obtain the management information; And E) A method for processing service management information in a mobile broadcast terminal in transmission and reception of a TPEG information file, characterized in that it comprises the step of receiving data corresponding to an application service using the management information. The method of claim 1 wherein the method is F) applying the data received by step E) to an application program stored in the mobile broadcasting terminal, The mobile broadcasting terminal processes the service management information to notify the terminal user of the necessity of upgrading the terminal electronic map by changing the version of the terminal electronic map for traffic and travel information, and informs the terminal of the configuration of files for each TPEG application service. And processing the service management information in the transmission and reception of the TPEG information file, wherein the mobile broadcasting terminal transmits the data of the TPEG application service through the application program. The mobile application of claim 2, wherein the application program comprises a summary map information service for matching and providing the received data with a map image previously stored in the terminal. How to handle in the terminal. The mobile application terminal of claim 2, wherein the application program comprises a dynamic route guidance service using the received data and a map previously stored in the terminal. Way. The method of claim 1, wherein the individual service is A method for processing service management information in a mobile broadcast terminal in transmission and reception of a TPEG information file, comprising one or more of SNI, CTT, and RTM. The method according to claim 1 or 5, wherein the management information file is And at least one of an SNI file and TPEG.txt, wherein the mobile broadcasting terminal processes service management information in transmission and reception of a TPEG information file. The method of claim 6, wherein the management information is Service management information in the transmission and reception of a TPEG information file comprising at least one of update, version, type, node / link version, compression status, component, summary map, compression scheme, and file configuration information for an application service. Processing by the mobile broadcasting terminal. The method of any one of claims 2 to 4, wherein the method is G) if the application program of step F) requests congestion information and the congestion information received by the request includes information about a link that is not in the congestion information database held by the mobile broadcasting terminal, the mobile broadcasting terminal. And adding a new link entry in the mobile broadcasting terminal in the service management information in the transmission and reception of the TPEG information file. The method of any one of claims 2 to 4, wherein the method is H) when the application program of step F) requests congestion information and the congestion information received by the request includes information on a link stored in a congestion information database possessed by the mobile broadcasting terminal, stored congestion; And updating the information with the newly received congestion information. The method of claim 1, wherein the mobile broadcasting terminal processes the service management information in the transmission and reception of the TPEG information file. The method of any one of claims 2 to 4, wherein the method is I) When the application program of step F) requests congestion information and a valid time value is set in the congestion information received by the request, the current time is based on the message generation time (MGT) of the received congestion information message. And invalidating and deleting the received mixed information message when the MGT and the valid time are greater than the sum of the MGT and the valid time. The method of any one of claims 2 to 4, wherein the method is G) if the application program of step F) requests congestion information and the congestion information received by the request includes information about a link that is not in the congestion information database held by the mobile broadcasting terminal, the mobile broadcasting terminal. Adding a new link entry in the; And H) if the congestion information received by the request includes information on a link stored in a congestion information database possessed by the mobile broadcasting terminal, updating the stored congestion information with newly received congestion information. And processing the service management information in the mobile broadcast terminal in the transmission and reception of the TPEG information file. The method of claim 11, wherein the method is I) When the application program of step F) requests congestion information and a valid time value is set in the congestion information received by the request, the current time is based on the message generation time (MGT) of the received congestion information message. And invalidating and deleting the received mixed information message when the MGT and the valid time are greater than the sum of the MGT and the valid time. Receiving, by a mobile broadcasting terminal which processes service management information in transmission and reception of a TPEG information file, information constituting a traffic information channel from program organization information; Identifying individual services of a TPEG from configuration information of the traffic information channel; Updates, versions, types, nodes / links, and summary maps of the individual services of the TPEG are generated using information formed through identification of the individual services of the TPEG. A plurality of SID-A.SID-Bs for management information files named TPEG.txt containing simple maps, compressions and components and data of TPEG application services corresponding to individual services of the TPEG. Receiving a management information file comprising a .SID-C_SCID_fileIndex.ext file; Parsing the management information file to obtain the management information; And And a computer-readable recording medium of the TPEG information file through a process including receiving data of the TPEG application service using the management information. The method of claim 13, A computer-readable recording medium of a TPEG information file, characterized in that the terminal checks whether the TPEG.txt has been changed by comparing with a previously received version of the TPEG.txt file through an update line. The method of claim 13, TPEG information file, characterized in that if the version of the node / link and the update date is not matched by comparing the node / link version used in the map embedded in the terminal by transmitting the terminal to update the map to the terminal The computer-readable recording medium. The method of claim 13, The component is a list of individual service components, SID-A.SID-B.SID-C SCID Number_of_files <data> <time>, the computer-readable recording medium of the TPEG information file. The method according to any one of claims 13 to 16, The SID-A.SID-B.SID-C_SCID_fileIndex.ext file indicates a TPEG service ID (SID) assigned to a service provider at a service frame level through SID-A.SID-B.SID-C, and through SCID. A service component identifier assigned by the SID, which indicates whether the corresponding service component is an SNI or CTT, and an order in the entire file when a service component is divided into multiple files and provided in the SID and the SCID through a FileIndex. And a file extension of ext is a computer-readable recording medium of the TPEG information file, which can be replaced with bin or xml.

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