KR100587954B1 - Apparatus and method for transmission of LBS data using digital broadcasting system - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a location-based data transmission apparatus using a digital broadcasting system and a method thereof.

2. The technical problem to be solved by the invention

The present invention proposes a method of transmitting location-based information that can reflect real-time distribution of each region or past statistical distribution of in-vehicle and portable receivers that are subject to location-based application services, and thus, through a limited data broadcasting channel. It is an object of the present invention to provide a location-based data transmission apparatus and method using a digital broadcasting system capable of transmitting location-based information effectively.

3. Summary of Solution to Invention

The present invention provides a location-based data transmission apparatus using a digital broadcasting system, comprising: traffic information storage means for storing statistical traffic information of the past; Regional priority information storage means for storing predetermined regional priority information; Traffic information collecting means for collecting real-time traffic information; Location-based data broadcasting service through real-time traffic information input from the traffic information collecting means, statistical traffic information of the past input from the traffic information storage means, and predetermined regional priority information input from the priority information storage means of each region. Data reconstruction means for determining transmission priority per group for (LBS) information and for updating the latest LBS data and thus reconstructing regional LBS data; And digital broadcasting transmission means for transmitting the LBS data reconstructed by the data reconstruction means through a corresponding program channel.

4. Important uses of the invention

The present invention is used in digital broadcasting systems.

Digital broadcasting system, location based data broadcasting service (LBS), data segmentation

Description

Location-based data transmission apparatus and method using digital broadcasting system {Apparatus and method for transmission of LBS data using digital broadcasting system}             

1 is a block diagram of an embodiment of a location-based data transmission apparatus using a digital broadcasting system according to the present invention.

Figure 2 is a detailed configuration diagram of an embodiment of the LBS data server of the location-based data transmission apparatus according to the present invention.

3 is a diagram illustrating an embodiment of location-based information configuration for each region including real-time traffic information in the location-based data transmission apparatus according to the present invention.

4 is a diagram illustrating an embodiment of a system configuration and an LBS DB structure for real-time updating of LBS data in a location-based data transmission apparatus according to the present invention;

FIG. 5 is a diagram illustrating an embodiment of a lattice type LBS data division method in a location-based data transmission apparatus according to the present invention; FIG.

FIG. 6 is a view illustrating an embodiment of a method for partitioning LBS data based on administrative districts in a location-based data transmission apparatus according to the present invention; FIG.

7 is a diagram illustrating an embodiment of a transmission priority and a transmission method for a grid-type and administrative area reference data partitioning method in a location-based data transmission device according to the present invention.

8 is a diagram illustrating an embodiment of a method for partitioning dynamic LBS data in a location-based data transmission apparatus according to the present invention.

9 is a diagram illustrating an embodiment of a transmission priority and a transmission method for a dynamic data partitioning method in a location-based data transmission apparatus according to the present invention.

10 is a flowchart illustrating an embodiment of a method for transmitting location-based data according to the present invention.

* Explanation of symbols for the main parts of the drawings

11: real time traffic information server 12: LBS data server

13: Broadcasting System 14: Regional Priority DB

15: traffic information DB 201: real-time traffic information input unit

202: real-time local information input unit 203: real-time traffic information analysis unit

204: real-time local information analysis unit 205: location-based information DB reconstruction unit

206: LBS data partition unit (dynamic) 207: LBS transmission frame configuration unit

208: LBS data transmission unit 209: LBS DB (grid type / administrative area / dynamic)

210: LBS Data Server Manager

The present invention relates to a location-based data transmission device and a method using a digital broadcasting system, and in particular, it can reflect the real-time distribution or regional statistical distribution of regional receivers and portable receivers that are the target of location-based application services. The present invention relates to a location-based data transmission apparatus and method using a digital broadcasting system for effectively transmitting location-based information through a limited data broadcasting channel by presenting a location-based information transmission mechanism.

The present invention manages a broadcasting network having a limited service capacity, improves transmission channel efficiency, statistical technology for analyzing a receiver's movement in real time or non-real time, and related data according to a transmission speed allocated to a data service. Efficient partitioning and optimization techniques for prioritizing transmission of partitioned data.

A general digital broadcasting system (digital television broadcasting, digital satellite broadcasting, digital audio broadcasting, etc.) may provide or provide multimedia data broadcasting services such as location-based information, traffic information, stock information, electronic program guide (EPG), and weather forecast. Is on schedule.

In this case, the transmission capacity of the data service that each broadcaster or service provider can provide to the receiver (user) is limited due to the limited transmission capacity of the corresponding frequency channel, and a series of objects constituting one data broadcasting service. It is common practice to repeatedly transmit them at a constant data rate. At this time, it is assumed that all data constituting one service have the same importance, and the repeated transmission is uniformly inefficient without considering the shortest access time of important data considering the viewer's preference and limited transmission capacity. . In particular, in case of a data broadcasting service having a close relationship with a region where a plurality of mobile receivers are located such as a location based service (LBS: Location Based Service), that is, a viewer / listener, the data is more inefficient.

As described above, the conventional digital broadcasting system takes a form in which all data constituting the data service is repeatedly transmitted with the same importance when transmitting a data broadcasting service such as a location-based service. There is a problem in that the acquisition time for the location-based data, that is, the location data, which is high in importance, becomes longer or the amount of data acquired per unit time is reduced.

The present invention has been proposed to solve the above problems, location-based information that can reflect the real-time distribution or regional statistical distribution of the region of the receiver and the portable receiver in the target vehicle of the location-based application services It is an object of the present invention to provide a location-based data transmission apparatus and method using a digital broadcasting system that can effectively transmit location-based information through a limited data broadcasting channel.

An apparatus of the present invention for achieving the above object is a location-based data transmission apparatus using a digital broadcasting system, comprising: traffic information storage means for storing past statistical traffic information; Regional priority information storage means for storing predetermined regional priority information; Traffic information collecting means for collecting real-time traffic information; Location-based data broadcasting service through real-time traffic information input from the traffic information collecting means, statistical traffic information of the past input from the traffic information storage means, and predetermined regional priority information input from the priority information storage means of each region. Data reconstruction means for determining transmission priority per group for (LBS) information and for updating the latest LBS data and thus reconstructing regional LBS data; And digital broadcast transmission means for transmitting the LBS data reconstructed by the data reconstruction means through a corresponding program channel.

In addition, the method of the present invention for achieving the above object, the location-based data transmission method using a digital broadcasting system, traffic information storage step of storing the past statistical traffic information; A region-specific priority information storage step of storing predetermined region-specific priority information; A traffic information collecting step of collecting real-time traffic information; Real-time traffic information collected in the traffic information collecting step, past statistical traffic information stored in the traffic information storing step, and overall location-based data through predetermined regional priority information stored in the priority information storing step for each region A data reconstruction step of determining transmission priority of each group for the broadcasting service (LBS) information, updating the latest LBS data, and reconstructing regional LBS data accordingly; And a digital broadcast transmission step of transmitting the LBS data reconstructed in the data reconstruction step through a corresponding program channel.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an embodiment of a location-based data transmission apparatus using a digital broadcasting system according to the present invention.

As shown in FIG. 1, the location-based data transmission apparatus using the digital broadcasting system according to the present invention stores a traffic information database 15 storing statistical traffic information of the past and predetermined priority information for each region. Local priority database 14, real-time traffic information server 11 for collecting real-time traffic information, and real-time / statistical traffic information and regional priority information to determine group-specific transmission priority for all LBS information And a LBS data server 12 for updating the latest LBS data and consequently reconstructing regional LBS data, and a broadcasting system 13 for transmitting the LBS data through a corresponding program channel.

2 is a detailed block diagram showing an embodiment of the LBS data server of the location-based data transmission apparatus according to the present invention.

As shown in FIG. 2, the LBS data server 12 includes a real-time traffic information / region information input unit 201 and 202 for processing real-time traffic information / region information input through a wireless or wired network into a predetermined data form, and transmission priority. Real time traffic information / area according to the requirements of the real time traffic information / area information analysis unit 203, 204 for analyzing the received real time traffic information / area information for ranking and DB change, and the LBS data server manager 210; Update the existing LBS DB (209) based on the new traffic information and local information input through the information analysis unit (203, 204), location-based information DB reconstruction unit 205 for storing newly updated content, and dynamic LBS When the data partitioning method is selected, the LBS data partitioner 206 for reconstructing the LBS data divided by regions into the same sized data, and the transmission priority and the number of repetitions To include a LBS data transmission unit 208 for transmitting a transmission frame according to LBS (LBS data) LBS transmission frame forming section 207, and the configured for forming the last transmission frame on the input type of a broadcasting system.

The operation of the location-based data transmission apparatus using the digital broadcasting system according to the present invention having the structure as described above will be described in detail as follows.

The real-time traffic information server 11 converts the real-time traffic information collected for each geothermal column into a predetermined data structure and transmits it to the LBS data server 12, and accordingly, the region-specific traffic as shown in FIG. 3 in the LBS data server 12. By combining with local information separated by, to configure the location-based information for each region to provide LBS.

The LBS data server 12 selects, for example, one of three transmission criteria to determine the priority of the LBS information for each region. In this case, the three transmission criteria are real-time traffic information / statistical traffic information / predetermined regional priority information, and the transmission priority of the LBS data is determined based on the selected transmission criteria. The repetitive location-based information is determined by repetition of the priority and the number of repetitive transmissions for each region and topic, and is transmitted through the program channel of the broadcasting system 13.

Here, the transmission criteria using real-time and statistical traffic information analyzes the traffic information to predict the number of receiving terminals for each region, and determines the priority and repetitive transmission frequency for each region based on the region where the number of receiving terminals is large. In this case, the reception terminal prediction may be determined by analyzing the number of lanes and the bi-directional vehicle moving speed of each road, or may determine the priority by the intuition of the traffic monitoring camera operator. The transmission criteria using pre-determined regional priority information determines the priority and the number of repetitive transmissions according to the theme of the location-based data according to the advertisement fee paid by the advertiser when the regional-based data is adopted as the concept of advertisement due to the nature of broadcasting. Way.

System and LBS DB configuration for the real-time update of LBS data is as shown in FIG.

4 is a diagram illustrating an embodiment of a system configuration and an LBS DB structure for real-time updating of LBS data in a location-based data transmission apparatus according to the present invention.

As shown in FIG. 4, the LBS data that needs to be changed or newly added is transmitted to the LBS data server 12 using an Ethernet or a public switched telephone network (PSTN). Update The LBS DB of the LBS data server 12 is configured by first subdividing the broadcasting zones covered by the transmitter of the broadcasting system 13 by regions, and subdividing them into subcategories specialized for each region. As an example of the LBS DB configuration, as shown in FIG. 4, relevant information such as tourist attractions, restaurants, department stores, and government offices located in the A region is organized by business, traffic information, etc. by road, and other major news and event information by region. can do. In this case, the updated DB is reconstructed based on various LBS data partitioning methods shown in FIGS. 5 to 7 to be described later.

5 is a diagram illustrating an embodiment of a grid-type LBS data partitioning method in a location-based data transmission apparatus according to the present invention.

As shown in FIG. 5, the grid-type LBS data partitioning method is a method of grouping data based on latitude and longitude coordinates existing at both ends of the upper left and lower right grids for each region. However, since the amount of LBS data for each region is not the same and the broadcast coverage of the transmitter is not rectangular, it may be difficult to divide the data at the edge of the coverage. However, DB configuration and management is very convenient.

FIG. 6 is a diagram illustrating an embodiment of a method for partitioning LBS data based on administrative regions in a location-based data transmission apparatus according to the present invention.

As shown in FIG. 6, the LBS data division method based on administrative districts divides location-based information for each region based on units such as provinces, cities, counties, towns, towns, villages, and villages. If it is assumed that the entire broadcast coverage shown in FIG. 6 is a region of Gyeonggi-do, the region-specific information represented in capital letters of English alphabet includes location-based information divided in units such as 'hour' or 'east'. At this time, the level (city, east, etc.) of the selected region is selected based on the amount of transmittable data transmission allocated to the LBS channel.

Transmission priority and transmission method for the LBS data partitioning method based on the grid type and the administrative area are shown in FIG. 7. The size of the LBS information for each region of the grid type and the administrative area criteria is not the same as in the upper figure of FIG. 7. Assume that the total broadcast coverage is divided into eight regions from A to H, and the transmission priority is in the order of A, B, C, D, E, F, G, H region according to the three transmission mechanisms mentioned above. According to each priority, a transmission frame may be configured as shown in the following figure of FIG. 7, and the number of repetitions for each region is different. Until the entire LBS data has been transmitted once, it has four repetitive transmission opportunities for region A data four times, region B data three times, region C data two times and for the rest of the region. The repetition frequency for each region is determined in consideration of the data space allocated to the LBS and the time required to transmit the entire LBS data, that is, the time required to transmit data from the region A data to the H. The time required for full LBS data transmission is equal to the maximum time that the receiver has to wait to access any LBS data desired, and the number of repetitive transmissions of the regional data should be adjusted to minimize as much as possible.

8 is a configuration diagram illustrating a dynamic LBS data partitioning method in a location-based data transmission apparatus according to the present invention.

As shown in FIG. 8, in the dynamic LBS data partitioning method, the boundary of each region is adjusted to maintain the same size of location-based information of each region. To this end, first, broadcast coverage should be divided into regions having appropriate sizes in consideration of the overall size of location-based information, reconstruction of LBS DB, and efficient transmission. Based on this, an algorithm that adjusts regions by region so that location-based information of the same size is included in each region is applied. As shown in FIG. 9, after configuring a transmission priority and a transmission frame based on location-based information of each region having the same size, when an event such as addition / update / deletion of location-based information for each region occurs, again for each region Rebalance each region so that location-based information can be sized the same.

10 is a flowchart illustrating an embodiment of a location-based data transmission method according to the present invention.

As shown in FIG. 10, first, one of three mechanisms (regional real-time traffic information, regional statistical traffic information, regional priority information) for LBS data transmission is arbitrarily selected or automatically selected by the administrator, and this is transmitted by LBS_TM (Transmission Mechanism). (1001, 1002). At this time, the automatic selection may be determined according to the presence or absence of real-time traffic information and a predetermined priority.

Subsequently, after adjusting transmission priorities for the divided LBS data for each region based on the LBS_TM value (1003), the transmission priority adjustment and transmission frame configuration are performed (1004) according to whether traffic information for each region is updated (1004). 1006) Check whether or not to update the local information (1007). At this time, whether the two updates should be periodically checked.

As a result of the check (1007), if there is a request for updating the local information, the location-based information DB is updated (1008), and one of three LBS data partitioning methods (lattice partitioning method, administrative division reference partitioning method and dynamic partitioning method) is selected. In operation 1011, the LBS data for each region is repartitioned according to the LBS_PM (Partition Method). In case of repartitioning, a transmission frame for LBS data is newly configured.

As a result of the check (1007), if there is no request for updating the local information, the configured LBS transmission frame is repeatedly transmitted as many as the number of counter_limit (1012, 1013, 1014). As described above, after transmitting the transmission frame for a predetermined time during the counter_limit, DB update and transmission frame reconstruction are performed again according to whether the traffic information is updated and the local information is updated, and the transmission frame is repeatedly transmitted.

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

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

As described above, the present invention provides a limited data by presenting a transmission mechanism of location-based information that can reflect real-time distribution of each region or past statistical distribution of in-vehicle and mobile receivers that are subject to location-based application services. There is an effect that can transmit the location-based information very effectively through the broadcast channel.

In addition, the present invention can be applied to efficient data transmission methods in consideration of consumer preference for data broadcasting content based on such a transmission mechanism.

Claims (8)

In the location-based data transmission apparatus using a digital broadcasting system, Traffic information storage means for storing historical statistical traffic information; Regional priority information storage means for storing predetermined regional priority information; Traffic information collecting means for collecting real-time traffic information; Location-based data broadcasting service through real-time traffic information input from the traffic information collecting means, statistical traffic information of the past input from the traffic information storage means, and predetermined regional priority information input from the priority information storage means of each region. Data reconstruction means for determining transmission priority per group for (LBS) information and for updating the latest LBS data and thus reconstructing regional LBS data; And Digital broadcast transmission means for transmitting the LBS data reconstructed by the data reconstruction means through a corresponding program channel Location-based data transmission device using a digital broadcasting system comprising a. The method of claim 1, The data reconstruction means, A real time traffic / region information processing unit for processing real time traffic / region information input through a wireless or wired network into a predetermined data form; A real time traffic / region information analysis unit for analyzing the real time traffic / region information for transmission priority determination and database (DB) change; According to the request of the data server administrator, the LBS storage unit (DB) is updated based on the new traffic information and the local information input through the real-time traffic / region information analysis unit, and location-based information for newly storing the updated contents. DB reconstruction unit; As the dynamic LBS data partitioning method is selected, a data partitioner for reconstructing the LBS data divided by regions into data having the same size; An LBS transmission frame configuration unit for configuring a final transmission frame based on transmission priority and repetition frequency; And LBS data transmission unit for transmitting the configured LBS transmission frame (LBS data) in accordance with the input form of the broadcast system Location-based data transmission device using a digital broadcasting system comprising a. The method of claim 2, The LBS transmission frame configuration unit, Location-based data using a digital broadcasting system characterized by partitioning broadcast coverage by region, determining transmission priority and repetition frequency of region-based LBS data based on real-time / statistical traffic information, and configuring LBS transmission frames based on this Transmission device. The method of claim 2, The LBS transmission frame configuration unit, A location-based data transmission apparatus using a digital broadcasting system, characterized in that for configuring the LBS transmission frame by determining the priority and the number of repetitive transmission for each subject of the location-based data based on a predetermined priority. The method of claim 2, The LBS storage unit (DB), Location-based data transmission apparatus using a digital broadcasting system, characterized in that the broadcasting zone covered by one transmitter is divided into regions, and divided into sub categories specialized for each region to store information. The method of claim 2, The LBS storage unit (DB), Grid LBS data partitioning method for partitioning LBS data based on latitude and longitude coordinates for each region, LBS data partitioning method for administrative districts for partitioning LBS data based on administrative districts, and size of location-based information for each region Location-based data transmission apparatus using a digital broadcasting system, characterized in that for storing the reconstructed information based on the dynamic LBS data segmentation method for adjusting the boundaries of each region to maintain. The method according to any one of claims 1 to 6, The data reconstruction means, Location-based data transmission apparatus using a digital broadcasting system, which predicts the number of receiving terminals for each region by using real-time and statistical traffic information, and determines the priority and repetitive transmission number for each region based on the region having a large number of receiving terminals. . In the location-based data transmission method using a digital broadcasting system, A traffic information storage step of storing statistical traffic information of the past; A region-specific priority information storage step of storing predetermined region-specific priority information; A traffic information collecting step of collecting real-time traffic information; Real-time traffic information collected in the traffic information collecting step, past statistical traffic information stored in the traffic information storing step, and overall location-based data through predetermined regional priority information stored in the priority information storing step for each region A data reconstruction step of determining transmission priority of each group for the broadcasting service (LBS) information, updating the latest LBS data, and reconstructing regional LBS data accordingly; And Digital broadcast transmission step of transmitting the reconstructed LBS data in the data reconstruction step through a corresponding program channel Location-based data transmission method using a digital broadcasting system comprising a.

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