KR20070108669A - Data structure, broadcast information receiving device and broadcast information transmission and reception method - Google Patents

Abstract

The present invention extracts message management information including message identification information indicating that the traffic information is information on a traffic state from the traffic information message, the status information including the information on the traffic condition and the information on the traffic condition. A decoder for extracting the location information corresponding to the location information, the decoder for decoding the location information, and an output unit for outputting information on the traffic condition, wherein the decoder includes a price field and a currency unit field of a product information message among the status information; It provides a microwave digital multimedia broadcasting information receiver, characterized in that for decoding the.

Therefore, according to the present invention, accurate product cost information can be provided by providing not only the amount of money but also the monetary value with respect to the product price, which is the user's greatest concern among the information on the POI. .

Description

Data structure, an apparatus for receiving and broadcasting information {Data structure, an apparatus for receiving information of broadcasting, and a method for transmitting and receiving information of broadcasting}

1 is a diagram schematically illustrating a network in which traffic information is provided;

2 is a diagram illustrating a format for providing traffic information transmitted and received wirelessly;

3 is a diagram illustrating the structure of a POI message in detail;

4 is a diagram showing a sign of a message frame;

5 shows a message component of a product information item;

6 illustrates a message component of a product information item in accordance with the present invention;

7 illustrates an embodiment of a microwave digital multimedia broadcasting information receiver according to the present invention.

* Description of the symbols for the main parts of the drawings *

104: TPEG providing server 106: base station

702: radio transceiver 704: demodulator

706: TPEG decoder 712: GPS module

722: control unit 732: input unit

742: LCD driver 744: LCD display

752: storage

The present invention relates to a method and apparatus and a data structure for transmitting and receiving microwave digital multimedia broadcasting information. More particularly, the present invention relates to a method and apparatus for transmitting and receiving information on traffic and travel.

With the development of digital signal processing and communication technologies and the convergence of these technologies, audio and multimedia broadcasting are developing from analog broadcasting to digital broadcasting.

In particular, the demand for traffic information on roads is increasing due to the increase in vehicles in urban areas as well as in urban areas due to the widespread use of automobiles. Due to this necessity, broadcasting of traffic information is currently provided in radio, but it is provided in one direction at a designated time. However, the traffic state is changing in real time, there is a problem that can not provide the traffic information corresponding to the change to the user. In addition, there is a limit to providing information suitable for the user's interests.

In order to solve this problem, traffic information is provided for each service provider. However, many terminals of different manufacturers and different functions detect traffic information received through a digital broadcasting channel, interpret the same information, and provide information to a user. There is a need for a unified standard to do so.

The present invention is to solve the above problems, it is an object of the present invention to provide product information of a unified standard.

Yet another object of the present invention is to provide a monetary unit with price information in order to provide more clear commodity cost information.

In order to achieve the above object, the present invention provides a point of interest message of a microwave digital multimedia broadcasting includes a message management container, an event container, a location container, and the event container includes a product information item representing related product information. The product information item provides a data structure comprising a price field representing the amount of money and a currency unit field representing the unit of money.

According to another embodiment of the present invention, the present invention provides a step of generating message management information including message identification information indicating that the traffic information is information on traffic conditions, a step of generating status information including information on traffic conditions, traffic It provides a method for transmitting microwave digital multimedia broadcasting information comprising the step of generating location information corresponding to the information on the status, wherein the price information field and the currency unit field is encoded in the product information message in the state information generation step. .

According to another embodiment of the present invention, the present invention comprises the steps of extracting from the traffic information message, message management information including message identification information indicating that the traffic information is information on the traffic state, from the traffic information message, the traffic state Extracting status information including information on the location information corresponding to the information on the traffic condition, decoding the status information and the location information, and outputting information on the traffic condition; The extracting of the state information including the traffic state information provides a method for receiving microwave digital multimedia broadcasting information comprising decoding a price information field and a currency unit field of a product information message.

According to still another embodiment of the present invention, the present invention extracts message management information including message identification information indicating that the traffic information is information on a traffic condition from the traffic information message, and includes the information on the traffic condition. Extracting location information corresponding to the status information and the traffic state information, and decoding the state information and the location information, and an output unit for outputting the information on the traffic state, wherein the decoder includes: The present invention provides a microwave digital multimedia broadcasting information receiver characterized by decoding a price field and a currency unit field of a product information message.

Therefore, according to the present invention, accurate product cost information can be provided by providing not only the amount of money but also the monetary value with respect to the product price, which is the user's greatest concern among the information on the POI. .

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

The present invention is applied to a traffic and travel information (hereinafter referred to as TTI) service of microwave digital multimedia broadcasting (terrestrial DMB).

There are several application services in detail in the TTI service specification, and various detailed application standards cited in the TTI standard are microwave microwave digital media broadcasting (terrestrial DMB), TTI communication status information (CTT) service, and microwave digital multimedia broadcasting (terrestrial DMB). TTI Point of Interest (POI) Information Services, Microwave Digital Multimedia Broadcasting (Terrestrial DMB) TTI Safe Driving Information (SDI) Service, Microwave Digital Multimedia Broadcasting (Terrestrial DMB) It is applied to TTI news information (NWS) service, microwave digital multimedia broadcasting (terrestrial DMB) and TTI traffic image information (TSI) service. Microwave Digital Multimedia Broadcasting (Terrestrial DMB) The TTI georeference standard is applied to represent location information related to TTI.

The traffic and travel information service (TTI) is a terrestrial DMB service based on the current location of the recipient or the point of interest of the recipient, and information on the point of interest, safe driving information, notice information, news information, and road image information. Refers to a service delivered through a network.

The transport and travel information (TTI) service standard was developed and expanded based on the TPEG standard. Each TTI application is assigned a unique identification number called an application identifier (AID) as in the TPEG standard. Table 5 defines the identifier assigned to each TTI service. This identifier is used to decode the received TPEG content using the most suitable application decoder.

The TTI communication status (CTT) information service describes a method of encoding information on road or traffic related traffic information and congestion information.

The TTI Point of Interest (POI) information service proposes a transmission / reception matching standard for a point-of-interest (POI) information service among TTI services of a terrestrial DMB, and provides a POI message concept and a POI message. It contains the components of, POI event container, POI message management container, and required items and various tables used for them. The service defines how to encode information about major points of interest and areas, such as travel destinations, tourist destinations, restaurants, venues, hotels, healthcare, and financial institutions.

The TTI safe driving information (SDI) service proposes a transmission / reception matching standard for a safety driving information (SDI) service among the traffic and travel information (TTI) services of the terrestrial DMB, and an SDI message concept and an SDI message. It contains the components of, the SDI event container, the SDI message management container, and the required items and the various tables used therein. This service defines the information necessary for the safe driving of travelers, such as speeding danger spots and accidental accidents on the road.

The TTI Notice Information (REI) service provides a transmission / reception matching standard for Road-Event-Information (REI) service among the TTI services of terrestrial DMB, and provides a REI message concept and a composition of REI message. Contains elements, REI event containers, REI message management containers, required items, and various tables used. The service defines information such as road accidents, congestion, construction sections, events and assemblies.

The TTI news information (NWS) service provides a transmission / reception matching standard for a news information (NWS) service among the TTI of the terrestrial DMB, and an NWS message concept, a component of an NW message, and an NWS event container. Describes the NWS message management container and required items, and the NWS table. The service defines the latest news, hot-news and local news.

The TTI service provides a transmission / reception matching standard for a Traffic Status Image Information (TSI) service among the TTI services of the terrestrial DMB, and the TSI message concept and the TSI message. It describes the components of the TSI event container, the TSI message management container and its required items, and the TSI table. This service defines road situation CCTV and graphic information.

The present invention relates to a transmission and reception matching standard for a point-of-interest (POI) information service among TTI services of terrestrial DMB.

The traffic information providing service according to the present invention can be applied to various digital broadcasting standards. Examples of digital broadcasting standards include European Digital Audio Broadcasting (DAB), Digital Video Broadcasting-Terrestrial (DVB-T), Digital Video Broadcasting-Handheld (DVB-H), based on Eureka-147 [ETSI EN 300 401]. MediaFLO (Forward Link Only) in the US and Digital Multimedia Broadcasting (DMB) in Korea. Korean DMB includes Terrestrial Digital Multimedia Broadcasting (T-DMB) based on Eureka-147, and Satellite Digital Multimedia Broadcasting (S-DMB) using satellite communication. In addition, the traffic information providing service according to the present invention is applied to Wi-Fi, Wibro (Wireless Broadband Internet), and the like, which are wireless Internet.

POI services define how to encode information about key points of interest and areas, such as travel, restaurants, leisure / tourism, lodging, restaurants, healthcare, financial institutions, and public institutions. The POI service delivers point of interest information to users through text, voice, and graphical methods for the terminal. In particular, it may be aimed at a terminal that is not equipped with an electronic map or GPS, or is not equipped with both an electronic map and GPS.

1 is a diagram schematically illustrating a network in which traffic information is provided according to an embodiment of the present invention. A method of providing traffic information in a wireless signal according to the present invention will be described with reference to FIG. 1.

The broadcaster's TPEG providing server 104 is configured to reconstruct various traffic information collected from various paths, for example, operator input, other servers via the network 102 or probe cars, and various terminals, For example, a traffic information receiver mounted on a mobile phone 112, a vehicle 114 or a personal digital assistant (PDA) 116, or other portable terminal can be sent for reception. In addition, the terminal may include a computer such as a navigator or a notebook, but is not limited thereto. Here, the TPEG providing server 104 may use a digital broadcasting data channel as a route for transmitting traffic information, but may use a wired or wireless Internet, for example, a broadband wireless medium or a wired cable such as Wi-Fi or Wibro (Wireless Broadband Internet). You can also use the Internet. In particular, when using a data service of a digital multimedia broadcasting service (DMB), a TDC (transparent data channel) or a multimedia object transport (MOT) protocol of a digital broadcasting medium may be used. The present invention is not limited to any particular transmission medium, but basically features a data structure that is transmitted using the transmission medium.

2 is a diagram illustrating a format for providing traffic information transmitted and received wirelessly. The container included in the traffic information providing format and the traffic information will be described with reference to FIG. 2.

TPEG messages related to various TPEG application services are delivered to the receiver in a mixed state as shown in Figure 2. TPEG messages have the same container structure and are called TPEG message containers. As shown in Figure 1, one of these TPEG messages is a POI message.

3 illustrates the structure of the POI message in detail. Referring to FIG. 3, a POI message includes a message management container, an event container, and a location container.

The message management container includes a message identifier (MID), a version number (VER), a message generation time (Message Generation Time: MGT), a start time (Start Time: STA), and an end time (Stop Time: STA). ), Message Expiry Time (MET), Severity factor (SEV), and Unverified Information (UNV).

The location container consists of three parts: a default language code, location co-ordinates, and additional location descriptions. In this case, location co-ordinates are the main elements representing location references.

The present invention relates to the event container, and looks at it in detail.

The information transmitted to the event container of the POI message is strictly state information, not event information. The description of state (or event) information follows a hierarchical structure, in order to ensure terminal compatibility according to specification extension and component addition.

An embodiment of the highest class defined in the event container may be configured as a basic item and an additional item in consideration of the complexity of the terminal implementation and the difference in information provision. Adding a top level class or extending a subclass can be done by adding an item identifier.

Looking at an embodiment of the top class of the event container, POI Classification Component, POI Description Component, Bi-Direction Service Component, Time Information Component, Parking Information Item There is a Parking Information Component, a Feature Information Component, a Product Information Component, and a Relation Information Component.

The classification categories of POIs include travel destinations, restaurants, leisure / tourism, lodging, restaurants, medical care, financial institutions, public institutions, etc. The middle classifications include golf courses, amusement parks, mountains, racecourses, zoos, and Korean food. There are Chinese, Japanese, Japanese hotels and motels.

The POI Description Component may include a textual description of the POI, that is, address, menu, article, phone number, web address, description, information, name, title, timetable, emergency message, reservation information, map, map, etc. And related photo information. Related subclasses include image data.

The Bi-Direction Service Component includes a contact point (address, phone number, etc.) of the POI for bidirectional communication. Related subclasses include Description of Bi-Directional Service.

The time information component describes time information related to the POI, that is, time type, service date or day of the week, timetable, and the like. Related subclasses include time instance, service day type, and timetable type.

The parking information component (Parking Information Component) describes the parking information related to the POI, that is, the type of parking lot, the price (base fee, basic fee time limit, amount of money in case of over time, etc.). Related subclasses include parking space information, rate information, and the like.

The feature information component may include feature information related to the POI, that is, feature description and related photos, facility accommodation information, atmosphere information, preference information, main age group information, reservation information, convenience information, and service information (smoking available). Whether it is evaluation information, payment information, opening / closing date information, and holiday information. Related subclasses include Feature Description, Space Information, Mood Information, Preference Information, Age group Information, Reserved condition Information, Convenience Information, Valuation Information, Payment Information, Service Information, Service-day expansion.

The Relation Information Component includes neighbor POI information and description related to the main POI. Related subclasses include Description.

The Product Information Component includes product information related to the POI, that is, a product name, a price, unique information, a related photograph, and performance product information. Related subclasses include Image data and Theater Information.

The item representing the price in the event container of the POI can be confusing to indicate only the amount of money. Thus, the present invention proposes a message structure including the unit of money in addition to the amount of money.

An embodiment of the present invention includes a feature information item of the POI and a product information item of the POI, which will be described in detail.

4 shows a sign of a message frame. Referring to FIG. 4, <component_frame (x)>: = represents a Point Of Interest, and <intunti> (scid) represents a Service Component Identifier (scid = x). <intunli> represents a length of application data in bytes, and <crc> represents a CRC header. <intunli> (n) defines the number of messages.

5 shows a message component of a product information item.

The product information item represents information relating to the product, in particular the price of the product. This is perhaps the biggest item of interest for the user. This is because the product selection may vary depending on the price.

Referring to FIG. 5, the message component of the product information item includes a price field 502. However, this field only represents the amount of money excluding monetary units. In such cases, confusion may arise if a foreigner uses this service or if the service is provided worldwide.

6 illustrates a message component of a product information item in accordance with the present invention. 6, in addition to the price field 604, a <poi26> field 602 indicating a unit of currency is included. poi26 (602) is only an embodiment related to the reference standard, it is possible if the unit of money can be defined. This enables more accurate service of the price, including not only the amount of money, but also the unit of money, and also enables the service to be carried out worldwide.

That is, according to the message structure indicating only the price, the price of a predetermined product of interest appears as 1000 only. At this time, it was unclear whether the 1000 means 1000 won, 1000 dollars, or 1000 yen. However, by including the unit of currency in the message structure, the user can obtain more accurate price information and receive a service for a product.

The monetary field may be inserted anywhere in the product information message. However, since it is related to the price field, it can be located above or below the price field. That is, the price field and the monetary unit field are adjacent to each other.

When encoding a monetary unit field, a monetary unit may be written directly into the message structure, or a previously created table representing the monetary unit may be linked and inserted into the message structure.

When decoding a monetary unit, the amount of money and the unit of money may be output separately as each piece of information, but may be output as one piece of cost information. That is, when the cost of the product is 1000 won, the output can be separated into 1000 and won as separate information, or can be output as a single bundle of 1000 won.

In the present specification, for convenience, units such as won, dollar, and yen are expressed in units of money, and amounts of money, such as 100, 1000, are represented by prices, and terms including the unit of money, such as 100 won, 1000 yen, and the like are represented by costs. It was.

7 is a block diagram schematically showing an internal configuration of a terminal according to an embodiment of the present invention for receiving traffic information transmitted from a server.

As illustrated in FIG. 7, the terminal using the received traffic information includes a radio transceiver 702, a demodulator 704, a TPEG decoder 706, a GPS module 712, a controller 722, an input unit 732, And an LCD driver 742, an LCD display unit 744, a storage unit 752, and the like. The function of each component of the terminal illustrated in FIG. 7 will now be described in detail.

The radio transmitter / receiver 702 tunes a signal band provided with traffic information to output a modulated traffic information signal to a demodulator 704, and demodulates the modulated traffic information signal to a TPEG decoder 706. When outputted to the TPEG decoder 706, the demodulated traffic information signal is decoded to obtain various traffic information. The GPS module 712 receives satellite signals transmitted from a plurality of low-orbit satellites to determine the current location (longitude, latitude, and altitude), and the storage unit 752 includes an electronic map including information on each link and node, In addition, various graphic information is stored, and the input unit 732 receives a user input. The control unit 722 controls the screen output based on the user's input information through the input unit 732 or the current position grasped through the GPS module 712 and the traffic information obtained through the wireless transmitter / receiver 702. do. The LCD display unit 744 receives a driving signal corresponding to the graphic to be displayed received from the control unit from the LCD driver 742 to display an image. LCD is only an example and the present invention is not limited thereto. The input unit 732 may be a touch screen provided on the LCD display 744 or may be a keypad, a jog dial, or a point stick.

The radio transmitter / receiver 702 tunes a signal transmitted from the TPEG providing server 704, and the demodulator 704 demodulates the tuned signal in a predetermined manner and outputs it.

The TPEG decoder 706 decodes the input demodulated signal into a TPEG message sequence configured as shown in FIG. 3, and then interprets each TPEG message in the sequence to control necessary information and / or control signals according to the message contents. In this case, the decoder 706 outputs a monetary unit field together with a price field when decoding the product information. Various information and / or control signals are transmitted from the TPEG decoder 706 to the controller 722. The controller may combine the decoded price field and the monetary unit field at the same time and output the information as one piece of information.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

The effects of the data structure, broadcast information transmission, reception method, and reception apparatus according to the present invention described above are as follows.

With regard to the product price, which is the user's biggest concern among the information about the point of interest (POI), by providing not only the amount of money but also the monetary unit, accurate product cost information can be provided.

Claims (9)

Point of Interest messages in microwave digital multimedia broadcasting include a message management container, an event container, a location container, The event container includes a product information item representing related product information. The product information item includes a price field representing an amount of money and a currency unit field representing a unit of money. The method of claim 1, And the monetary unit field is inserted adjacent to the price field. The method of claim 1, The monetary unit field links a previously stored monetary unit table. Generating message management information including message identification information indicating that the traffic information is information on a traffic condition; Generating status information including information on traffic conditions; And Generating the location information corresponding to the information on the traffic condition; And transmitting a price information field and a currency unit field into a product information message in the state information generation step. The method of claim 4, wherein And the monetary unit field links a previously stored monetary unit table. The method of claim 5, And updating the monetary unit table to add a monetary unit. Extracting, from the traffic information message, message management information including message identification information indicating that the traffic information is information on a traffic condition; Extracting, from a traffic information message, status information including information on the traffic condition and location information corresponding to the information on the traffic condition; And Decoding the status information and the location information and outputting information on the traffic condition; The extracting of the state information including the traffic state information may include decoding the price information field and the currency unit field of the product information message. The method of claim 7, wherein And receiving one commodity cost by combining the price information field and the currency unit field. Extracting message management information including message identification information indicating that the traffic information is information on a traffic condition from the traffic information message, and corresponding to status information including information on the traffic condition and information on the traffic condition; A decoder which extracts position information and decodes the state information and the position information; And An output unit for outputting information on the traffic state, And the decoder decodes a price field and a currency unit field of a product information message among state information.

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