KR100742610B1 - Geographic and traffic information providing system and its method using digital broadcasting network - Google Patents

Abstract

The present invention relates to a geographic and traffic information providing system using a digital broadcasting network and a method thereof. In the geographic and traffic information providing system using a digital broadcasting network, real-time geographic information and real-time traffic information from a central / regional information collection network are provided. A geographic information collecting means for receiving input and outputting geographic information for each region and traffic information for each region; Receive regional geographic information and regional traffic information from the geographic information collecting means, so that updated information is reflected in the information sent to each region, geographic information of different resolutions with different file sizes by importance of geographic information and map resolution, and Geographic information processing means for outputting traffic information for each resolution; In order to deliver the resolution-specific geographic information and the resolution-specific traffic information processed by the geographic information processing means to the transmission sites arranged in each region, the geographical information by resolution of the region corresponding to the transmission site in consideration of the size of the broadcasting data channel. Digital broadcasting means for selecting and transmitting traffic information, converting the selected geographic information and traffic information to match a digital broadcasting signal, and transmitting the converted traffic information; Geographic information multiplexing means for multiplexing geographic information and traffic information corresponding to each transmission site transmitted from said digital broadcasting means with geographic data for each region; And transmitting means for transmitting geographic information and traffic information for each region multiplexed by the geographic information multiplexing means to demultiplex the digital broadcasting receiver mounted in each vehicle to display geographic information and traffic information of a corresponding region. Include.

Map, Geographic Information, Digital Broadcasting, Network, Transmission Site, Map Division, Navigation

Description

Geographic and traffic information providing system and its method using digital broadcasting network

1 is a configuration diagram of an embodiment of a geographical and traffic information providing system using a digital broadcasting network according to the present invention;

2 is a block diagram of a map and geographic information server according to the present invention;

3 is a block diagram of a digital broadcast receiver according to the present invention;

4 is an exemplary explanatory diagram showing a multiplexing process according to a change in geographic information according to the present invention;

5 is a diagram illustrating an embodiment of a map segmentation process according to the present invention;

6 is a diagram illustrating an embodiment of a remote navigation process according to the present invention;

7 is a flowchart illustrating a method for providing geography and traffic information using a digital broadcasting network according to the present invention.

* Explanation of symbols for the main parts of the drawings

110: map and geographic information server 120: broadcasting station

130: digital broadcast network 131 to 133: transmission site

141 to 143: geographic information multiplexer

The present invention relates to a system and method for providing geographic and traffic information using a digital broadcasting network. More particularly, the present invention relates to a digital broadcasting transmission site for the most recent data of geographic and map information of the whole country or region to be provided for geographic information service. It is divided into the appropriate size according to the number and distance, and it is given priority when multiplexing the broadcasting signal according to the capacity of data and the amount of geographic information it holds. The present invention relates to a system and method for providing a geographical and traffic information using a digital broadcasting network which receives the latest map data by a digital broadcasting receiver and makes it available for vehicle and personal navigation.

As a technology for transmitting geographic information and traffic information using a broadcasting system, various methods of transmitting simple map information or traffic information to a receiver through an analog or digital broadcasting system have been proposed.

Meanwhile, for vehicle or personal navigation, an electronic map of an area where a user is located is required along with a GPS signal.

General electronic maps are databaseized and stored in the memory of the navigation system in a compressed form and used according to the needs of navigation related applications. These electronic maps vary in size depending on the amount of information they have, and the same method as when the newly upgraded geographic and map data is first stored in order to apply geographic information, roads, and terrain information that are changed once stored. There was a problem that needs to be reinstalled.

Therefore, in the related art, a vehicle navigation system or the like has to have a large-capacity memory installed in a manner in which an electronic map is stored in its own memory in advance to receive a navigation service, or must be upgraded through another network or media.

The present invention has been proposed to solve the above problems, and divides the most recent data of geography and map information of the whole country or region to be geographic information service into appropriate size according to the number and distance of digital broadcasting transmission site, These are divided into several files with different data sizes according to the appropriate resolution or importance of the recorded data, and multiplexed and transmitted to digital broadcasting signals according to the importance. It is an object of the present invention to provide a system and method for providing geographical and traffic information using a digital broadcasting network, which can be properly combined and used for vehicle navigation.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

In order to achieve the above object, the present invention provides a geographical and traffic information providing system using a digital broadcasting network, which receives real-time geographical information and real-time traffic information from a central / regional information collection network, and provides geographical and regional traffic information. Geographical information collecting means for outputting; Receive regional geographic information and regional traffic information from the geographic information collecting means, so that updated information is reflected in the information sent to each region, geographic information of different resolutions with different file sizes by importance of geographic information and map resolution, and Geographic information processing means for outputting traffic information for each resolution; In order to deliver the resolution-specific geographic information and the resolution-specific traffic information processed by the geographic information processing means to the transmission sites arranged in each region, the geographical information by resolution of the region corresponding to the transmission site in consideration of the size of the broadcasting data channel. Digital broadcasting means for selecting and transmitting traffic information, converting the selected geographic information and traffic information to match a digital broadcasting signal, and transmitting the converted traffic information; Geographic information multiplexing means for multiplexing geographic information and traffic information corresponding to each transmission site transmitted from said digital broadcasting means with geographic data for each region; And transmitting means for transmitting geographic information and traffic information for each region multiplexed by the geographic information multiplexing means to demultiplex the digital broadcasting receiver mounted in each vehicle to display geographic information and traffic information of a corresponding region. Include.

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On the other hand, the method according to the present invention, in a method for providing geography and traffic information using a digital broadcasting network, the first step of collecting real-time geographic information and real-time traffic information from the central / regional information collection network; A second step of extracting regional geographic information and regional traffic information from the collected geographic information and traffic information, and generating the extracted geographic information and traffic information as full area information, geographic information by resolution, and traffic information by resolution; In order to deliver the geographic information for each resolution and the traffic information for each resolution generated in the second step to a transmitting site disposed in each region, the geographical information and the traffic for each resolution of the region corresponding to the transmitting site are considered in consideration of the size of the broadcasting data channel. Selecting information and converting the selected geographic information and traffic information to fit the digital broadcasting signal and transmitting the converted information; A fourth step of encrypting the transmitted geographic information and traffic information to determine whether to use the information according to whether or not the receiver subscribes to and grades the service, and multiplexing the geographic information data for each region; And a fifth step of transmitting the multiplexed geographic information and traffic information to a corresponding region.

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Accordingly, the present invention relates to a technology for providing geographic information including an electronic map of an area in a digital broadcasting network serving a whole broadcasting area using a plurality of transmission sites. Overcoming the shortcomings of having to carry a navigation service by storing electronic maps in advance and having to carry a large amount of memory, or through other networks or media when upgrading, and various types according to the amount of geographic information possessed by the data when producing map data By making and mapping these maps and using them for periodic data transmission, the receiver can manage large amounts of map data efficiently. , Emergency situation or surroundings Reverse recent information it has the advantage of allowing you to more easily provide a vehicle while walking or driving.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a system for providing geographical and traffic information using a digital broadcasting network according to the present invention.

As shown in FIG. 1, a system for providing geography and traffic information using a digital broadcasting network according to the present invention includes a map and geographic information server 110 which collects recent geography and traffic information and transmits the same to a digital broadcasting network. Digital broadcasting network 130 that can transmit and cover the information transmitted from the map and geographic information server 110 to the entire area to serve geographic information, and receives the geographic information from the digital broadcasting network 130 And a digital broadcast receiver (not shown) for converting and using the navigation information.

Here, the digital broadcasting network 130 transmits the data collected and processed through the map and geographic information server 110 to match the output broadcast signal to each transmitter, and the signal output from the broadcasting station 120. It includes a geographic information multiplexer (141 to 143) for multiplexing the geographic information for each region, and a transmission site (131 to 133) for transmitting the signal multiplexed by the geographic information multiplexer (141 to 143) to the digital broadcast receiver.

The data collected and processed by the map and geographic information server 110 is transferred to the broadcasting station 120 of the digital broadcasting network 130, and the broadcasting station 120 appropriately adapts the processed data to the output broadcasting signal to each transmitter. The transmission site 131 to 133 for each region is transmitted, and the transmission site 131 to 133 for each region is multiplexed with the geographic information for each region using the geographic information multiplexers 141 to 143, and scattered in each region. The digital broadcast receiver which receives the map and the geographic information data transmitted from the transmission site (131 to 133) to enable the use of the surrounding information and navigation. Here, the digital broadcast receiver is not shown in FIG. 1 and will be described in more detail with reference to FIG. 3.

2 is a diagram illustrating an embodiment of a map and geographic information server according to the present invention, illustrating a process of transmitting data necessary for digital broadcasting.

That is, FIG. 2 illustrates a process of extracting data collected by using a central or regional map and geographic information network from the map and geographic information server 110 as data for digital broadcasting.

As illustrated in FIG. 2, the map and geographic information server 110 according to the present invention receives geographic information and traffic information by receiving real-time geographic information and real-time traffic information from a central or regional information collection network. Geographic information processing unit 220 for outputting the entire area information, geographic information by resolution and traffic information by resolution by extracting / processing geographic information by region and traffic information by region from geographic information collection unit 210 and geographic information collection unit 210. And a broadcasting station 120 for converting and transmitting the geographic information / traffic information data received from the geographic information processing unit 220 to fit the digital broadcasting signal, and the geographic information / traffic information data received from the broadcasting station 120. The geographic information / traffic information demultiplexed by the geographic information multiplexers (141 to 143) and the geographic information multiplexers (141 to 143) for multiplexing the geographic information data for each region. And a transmission site (131 to 133) for transmitting the emitter to the region.

Referring to the operation of the configuration of one embodiment of the map and geographic information server according to the present invention having the configuration as described above in detail as follows.

The map and geographic information server 110 according to the present invention processes the information as soon as new information is obtained and serves to provide data so that the broadcast station 120 reflects the new information in the information sent to each region. In this case, various versions of map data having different file sizes are provided and provided according to the importance of the processed geographic information or the resolution of the map, and the broadcasting station 120 obtains such geographic information from the map and geographic information server 110. In order to send the new map data to the necessary transmission sites 131 to 133 according to the predetermined map division criteria, the multiplexing configuration of the existing geographical information broadcasting channel is reset. At this time, the broadcasting station 120 multiplexes the map data of the various sizes created from the map and the geographic information server 110 into the broadcast signal according to a criterion for selecting an appropriate map in consideration of the broadcasting situation and the size of the broadcasting data channel. This signal is transmitted to each transmission site (131 to 133).

3 is a configuration diagram of an embodiment of a digital broadcast receiver according to the present invention, and illustrates a process of receiving maps and geographic information using a geographic information network configured using digital broadcasting.

As shown in FIG. 3, the digital broadcast receiver of the geographic information transmission / reception system according to the present invention includes a tuner 301 for tuning and tuning signals output from transmission sites 131 to 133. A demodulator 302 for demodulating the signal output from the tuner 301, a demultiplexer 303 for demultiplexing the signal output from the demodulator 302, and a signal output from the demultiplexer 303. Decoded Data Decoder 304, Memory 305 for storing data output from Data Decoder 304, Map Data Manager for managing data stored in memory 305 and displaying required portions 306, the map data manager 306 displays the map data, performs navigation (Navigation) navigator / display 307, and the audio / video data of the signal output from the demultiplexer 303 My A / V controller 308 for outputting.

The digital broadcast receiver has a memory capacity capable of storing map data of at least three regions in order to receive and store both data at a boundary point of a divided map.

The map data manager 306 performs a seamless combining function on the boundary of the map data decoded from each receiving module and stored in the memory 305 and serves to display the necessary portion on the navigation / display 307.

Maps and geographic data can be divided into data that is frequently upgraded and data that is rarely upgraded.The location name or location coordinates of a specific point are not frequently upgraded data. By adjusting, more efficient map data transmission can be achieved.

When receiving a map for each resolution output from the geographic information processing unit 220 to collect and process geographic information and map data, a map having a higher resolution than the resolution of the map currently received by the receiver (that is, a detailed map) When the reception is completed, the receiver should replace the existing map or upgrade the modified part.

In addition, since data such as the number of the divided map, the location information, and the location coordinates of a specific point are not frequently upgraded among the data which is hardly changed, the remote vehicle navigation is stored in the memory 305 at the time of manufacture of the receiver in advance. This can be useful when setting a location on a map currently stored in the memory 305 of the receiver as an arrival point. That is, when the navigation apparatus uses the current point as a starting point and searches for a destination name or an approximate destination point previously stored in the memory 305 and designates it as the destination, the point is currently stored in the memory 305. Use the map to provide the navigation service immediately. If it is not a distant point of arrival, first guide the user to the location from the saved map to the most optimal point for the direction of arrival. As soon as you download the map, you will be directed to your destination and then finding the best route to your destination.

FIG. 4 is an exemplary diagram illustrating a multiplexing process according to a change in geographic information according to the present invention, and illustrates an example of a standard for multiplexing geographic and map data of a size and version for each resolution to a broadcast signal. .

As shown in FIG. 4, data corresponding to the entire area and infrequently changed are sent out at relatively long time intervals, and data such as frequently changed and frequently used traffic information is generated and sent relatively frequently. .

Transmitters responsible for transmitting each signal transmit a broadcast signal transmitted from a broadcaster to a broadcast area in charge of the broadcaster.

FIG. 5 is a diagram illustrating an embodiment of a map segmentation process according to the present invention, when each transmission site 131 to 133 divides map data of each region to be multiplexed and transmitted to a digital broadcast signal transmitted by itself. Shows how much overlapping area to specify.

Basically, the digital broadcast receiver stores the map data received once in the same memory 305 as in the digital broadcast receiver of FIG. 3 until the proper capacity is exceeded and moves to a new map area as the vehicle moves. In this case, the map of the new area is stored in the remaining area of the memory 305.

If the stored map data exceeds the proper capacity, the memory is deleted from the area where the current receiver is present or the least frequently used data is deleted from the memory to manage the required memory.

The divided maps transmitted by two adjacent transmitting sites should be overlapped with the edges of the map to the extent that no space is left on the map when the receiver receives them. It can be determined by the product of the time taken to receive all of the lowest resolution map data transmitted from the region. This allows the receiver or receiving vehicle to receive minimal map data of the area before moving to the new area. Here, the time taken to receive map data from one transmitting site is proportional to the size (resolution or amount of information) of map data serving the area.

6 is a diagram illustrating an embodiment of a remote navigation process according to the present invention.

As shown in FIG. 6, when the navigation apparatus uses the current point as a starting point and searches for a destination name or an approximate destination point previously stored in the memory 305 and designates it as a destination, the navigation device stores the current point in the current memory 305. If it is, it will use the map to provide navigation service. If it is not a long distance, it will first guide you to the most suitable location in the saved map to the destination. As soon as you download a map of the area from the location you visit, you will be directed to your destination and then finding the best route to your destination.

7 is a flowchart illustrating a method for providing geography and traffic information using a digital broadcasting network according to the present invention.

As shown in FIG. 7, first, real-time geographic information and real-time traffic information are collected from a central or regional information collection network, and the collected real-time information is separated into regional geographic information and regional traffic information (701). The collected information is processed into full area and resolution information (702) and transmitted to the broadcasting station (703).

Next, the data transmitted to the broadcasting station multiplexes the processed data to match the output broadcast of each transmission site (704).

Subsequently, the data is encrypted to determine whether to use the information according to whether the receiver subscribes to or grades the service, and then the multiplexed geographic information / traffic information data is transmitted to the corresponding region (705).

In this case, when the transmitting site transmits the signal received from the broadcasting station to the receiver (706), the receiver tunes, demodulates, demultiplexes, and decodes (707), and whether or not the data is used according to whether the user subscribes to the service and the grade during the decoding process. Determining and decrypting the cipher, and storing the data that passed the decryption in the memory (708), it is applied to the navigation using the stored data (709).

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in detail any more.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

As described above, the present invention divides the most recent data related to geography and map information of the whole country or region to be provided with geographic information service into appropriate sizes according to the number and distance of digital broadcasting transmission sites and transmits the data through each transmitter. By overcoming the disadvantage of having to perform the map upgrade every time on the receiver side, the receiver can receive the latest map data required by the digital broadcasting receiver and combine the divided parts to use the memory capacity of the receiver. This can reduce or, conversely, increase the amount of information to be sent.

Claims (11)

In the geographical and traffic information providing system using a digital broadcasting network, A geographic information collecting means for receiving real-time geographic information and real-time traffic information from a central / regional information collection network and outputting the regional geographic information and the regional traffic information; Receive regional geographic information and regional traffic information from the geographic information collecting means, so that updated information is reflected in the information sent to each region, geographic information of different resolutions with different file sizes by importance of geographic information and map resolution, and Geographic information processing means for outputting traffic information for each resolution; In order to deliver the resolution-specific geographic information and the resolution-specific traffic information processed by the geographic information processing means to the transmission sites arranged in each region, the geographical information by resolution of the region corresponding to the transmission site in consideration of the size of the broadcasting data channel. Digital broadcasting means for selecting and transmitting traffic information, converting the selected geographic information and traffic information to match a digital broadcasting signal, and transmitting the converted traffic information; Geographic information multiplexing means for multiplexing geographic information and traffic information corresponding to each transmission site transmitted from said digital broadcasting means with geographic data for each region; And And transmitting means for transmitting geographical information and traffic information for each region multiplexed by the geographical information multiplexing means to display the geographical information and traffic information of the region by demultiplexing in the digital broadcasting receiver mounted in each vehicle. Geography and traffic information providing system using a digital broadcasting network. The method of claim 1, The digital broadcasting means, Receiving the geographic information for each resolution from the geographic information processing means to reset the multiplexing configuration of the existing geographic information broadcasting channel to send the geographic information to each transmission means according to a predetermined map segmentation criteria Geographic and traffic information providing system using a broadcasting network. The method of claim 2, The digital broadcasting means, After multiplexing the map data received from the geographic information processing means into a digital broadcast signal according to the broadcast situation, the criterion for selecting a map in consideration of the size of the broadcast data channel, and the repetitive transmission cycle according to the frequency of change of data. And a geographical and traffic information providing system using a digital broadcasting network, characterized by transmitting to the transmitting means. delete delete delete delete delete delete In the geography and traffic information providing method using a digital broadcasting network, A first step of collecting real-time geographic information and real-time traffic information from a central / regional information collection network; A second step of extracting regional geographic information and regional traffic information from the collected geographic information and traffic information, and generating the extracted geographic information and traffic information as full area information, geographic information by resolution, and traffic information by resolution; In order to deliver the geographic information for each resolution and the traffic information for each resolution generated in the second step to a transmitting site disposed in each region, the geographical information and the traffic for each resolution of the region corresponding to the transmitting site are considered in consideration of the size of the broadcasting data channel. Selecting information and converting the selected geographic information and traffic information to fit the digital broadcasting signal and transmitting the converted information; A fourth step of encrypting the transmitted geographic information and traffic information to determine whether to use the information according to whether or not the receiver subscribes to and grades the service, and multiplexing the geographic information data for each region; And A fifth step of transmitting the multiplexed geographic information and traffic information to a corresponding region; Geographic and traffic information providing method using a digital broadcasting network comprising a. delete

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