KR101070882B1 - method of providing real-map information and system thereof - Google Patents

Abstract

A method for providing a real map and a system thereof are disclosed. More specifically, a method of providing real map information performed by a real map server, the method comprising: obtaining image information about an image photographed from a terminal of a first vehicle; Storing the image information in an image database; Obtaining a preview image request signal from a second vehicle terminal; Determining a preview image to be provided corresponding to the preview image request signal; And transmitting the preview image to a terminal of a second vehicle. According to this, the traffic information on the route already traveled by another vehicle can be observed in advance in the form of a video, thereby reducing errors when relying only on the digital map of the vehicle navigation terminal.

Navigation, traffic information

Description

Method of providing real map information and system thereof

The present invention relates to a method and a system for providing real map information using a terminal installed in a vehicle.

BACKGROUND Navigation systems for vehicles have evolved a lot. Starting from simple route search functions, vehicle navigation systems have evolved to include voice guidance and become a driver's necessity.

A typical navigation system displays the vehicle's route on a digitized map. Digital maps, which started from simply two-dimensional forms, now reach the level of visual three-dimensional effects, enabling more accurate road guidance services.

However, route indications on digitized maps do not always produce satisfactory results. For example, inaccurate guidance may occur if road conditions are not updated due to frequent construction. In addition, when access roads in various directions appear consecutively at a complicated highway junction, etc., even a driver having a navigation terminal may enter the wrong path.

The present invention provides a method and system for providing real map information generated based on an image / image actually photographed using a terminal installed in a vehicle.

According to an aspect of the present invention, a method in which a real map server provides information about a real map formed as a set of live-action images, the method comprising: obtaining image information regarding a first image photographed from a terminal of a first vehicle; Constructing a real map by matching the first image with location information on the real map and storing the first image in an image database; Acquiring guide route information from a second vehicle terminal installed in the second vehicle and having a navigation function; And providing real map information from the image information stored in the image database by transmitting the image information corresponding to the obtained guide path information to the second vehicle terminal.

In the providing of the real map information, when there is a plurality of image information corresponding to the guide path information of the second vehicle terminal in the image database, the image information to be transmitted to the second vehicle terminal is determined in consideration of the image generation time information of the image information. It may further comprise the step.

The configuring of the real map may be performed by matching an image frame extracted from the first image with a position on the real map and storing the image frame in the image database in consideration of image capturing position information acquired from the first vehicle terminal.

In this case, the providing of the real map information may transmit an image frame matching the location information of the second vehicle obtained from the second vehicle terminal to the second vehicle terminal.

The method for providing real map information may further include detecting occurrence of a preview event regarding a route guided by the second vehicle terminal, and in this case, providing the real map information may correspond to a preview event. The image information of the portion preceding the current position of the second vehicle on the guide path of the second vehicle terminal may be transmitted to the second vehicle terminal as preview image information.

The preview event occurrence detecting step may be configured to detect that the preview event has occurred when the preview request signal including the identification information of the first point on the guide path is received from the second vehicle terminal. The providing of the real map information may include transmitting preview image information, which is determined based on the identification information of the first point, to the second vehicle terminal.

The real map information providing method provided by one aspect of the present invention can be executed by a computer, and a program for executing the method on the computer can be recorded in a computer readable recording medium.

According to another aspect of the present invention, a system for providing information about a real map formed as a set of photorealistic images to a navigation terminal installed in a vehicle, the image information of the first image photographed from the terminal of the first vehicle Obtaining image information acquisition unit; A real map configuration unit configured to configure a real map by matching the first image with location information on the real map and storing the first image in an image database; And image information providing real map information by transmitting, to the second vehicle terminal, image information corresponding to the guidance path information acquired from the second vehicle terminal installed in the second vehicle and having a navigation function, from the image information stored in the image database. There is provided a real map information providing system including a transmitting unit.

When there is a plurality of image information corresponding to the guide path information of the second vehicle terminal in the image database, the image information to be transmitted to the second vehicle terminal may be determined in consideration of image generation time information of the image information.

The real map component may be configured to match an image frame extracted from the first image with a position on the real map in consideration of image photographing position information acquired from the first vehicle terminal and store the image frame in the image database.

The image information transmitter may transmit an image frame matching the position information of the second vehicle acquired from the second vehicle terminal to the second vehicle terminal.

The real map information providing system may further include a preview event detector configured to detect the occurrence of a preview event regarding the route guided by the second vehicle terminal. In this case, the image information transmitter may correspond to the preview event. The image information on the portion preceding the current position of the second vehicle on the guide path of the vehicle terminal may be transmitted to the second vehicle terminal as preview image information.

The preview event detector detects that the preview event has occurred when the preview request signal including the identification information of the first point on the guide path is received from the second vehicle terminal. It may be characterized in that it is determined based on the identification information for the point.

Real-map, which is a term used for describing an embodiment of the present invention, may be understood as a term referring to a real image or a set of photo images corresponding to a certain position. Real map information for a location may be understood to mean an image or an image (frame of image) corresponding to that location.

According to such a method and system for providing real map information, a driver using a vehicle navigation terminal can actually photograph a driver's information on a difficult course, road opening, construction, or accident-prone point on a route to be moved by using an image. Can provide a video.

Other aspects, features, and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

According to a preferred embodiment of the present invention, a method and system for providing real map information using a terminal installed in a vehicle can be provided.

According to this, a live action image and an image of a moving route guided to a driver using a vehicle navigation terminal may be provided. Through this, the driver can be greatly assisted in driving safely by receiving information about the difficulty course, road maintenance information, and accident occurrence area on the path to which he / she is traveling in the form of a live-action image captured by another vehicle's terminal. .

Hereinafter, embodiments of a method for providing real map information and a system according to the present invention will be described in detail with reference to the accompanying drawings. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, in the description with reference to the accompanying drawings, the same or corresponding components will be given the same reference numerals and duplicate description thereof will be omitted.

1 is a diagram illustrating an environment in which a method for providing real map information according to an embodiment of the present invention is implemented. Referring to FIG. 1, a first vehicle terminal 110, a second vehicle terminal 120, and a real map server 130 are illustrated.

The first vehicle terminal 110 is a terminal installed in the first vehicle and having a function of collecting traffic information and communicating with the real map server 130. The first vehicle terminal 110 includes an image photographing unit 112, a communication module 114, an image reproducing module 116, and a controller 118.

The image photographing unit 112 is a portion for recording information on the traffic condition of the movement route in the vehicle in which the first vehicle terminal is installed as an image. The image capturing unit 112 may be included in the first vehicle terminal 110 in the form of a camera sensor. The captured image may be stored in a storage module (eg, flash memory or HDD) of the first vehicle terminal 110.

In general, an image may be understood to include a plurality of frames, but in some cases, an image to be photographed may include only one frame. An image consisting of only one frame may be used interchangeably with the term image or photo.

The communication module 114 is a part that provides a communication function for exchanging information with the real map server 130. The first vehicle terminal 110 may support a standard for wireless internet communication in order to exchange an image with the real map server 130. To this end, communication standards such as CDMA, WCDMA, HSDPA, Wibro (Wimax), LTE, etc. may be utilized, and the descriptions of these communication standards themselves may be made by those skilled in the art to which the present invention pertains. Since it is obvious to the present invention, detailed descriptions thereof will be omitted.

The image reproducing module 116 is a module providing an image necessary for the user of the first vehicle terminal 110. For example, when the first vehicle terminal 110 provides a navigation function, a conventional digital map may be provided through the image reproducing module 116. The image reproducing module 116 may include an LCD display module and the like, and other modules required for reproducing the image may also be utilized.

The vehicle terminals 110 and 120 according to an exemplary embodiment of the present invention may provide a navigation function by providing a screen with a live image and / or an image. The navigation implementation screen based on the live image will be described with reference to FIG. 6.

The controller 118 is a module for controlling the operation of each module by exchanging information between the modules belonging to the first vehicle terminal 110. The controller 118 may provide an interface between the first vehicle terminal 110 and the user. The command input by the user is interpreted by the controller 118 and transmitted to another module of the first vehicle terminal 110.

In the following detailed description of an embodiment of the present invention, the first vehicle terminal 110 will be described as a terminal for providing a captured image to the real map server 130 and the second vehicle terminal 120 is a real map server. It will be described as a terminal for requesting a preview image from the 130 and providing the image to a user. However, the second vehicle terminal 120 may also photograph and transmit the image to the real map server 130 in the same manner as the first vehicle terminal 110.

The second vehicle terminal 120 may include an image photographing unit 122, a communication module 124, an image reconstruction module 126, and a controller 128. The first vehicle terminal 110 and the second vehicle terminal 120 may have the same hardware configuration. For convenience of explanation, hereinafter, the description will be made based on the preview image reproduction function of the second vehicle terminal. However, as described above, the second vehicle terminal 120 may also acquire a video on the moving path of the vehicle, and transmit the obtained video to the real map server 130.

The real map server 130 is a server that relays the first vehicle terminal 110 and the second vehicle terminal 120 to transmit image information. The real map server 130 may be connected to the vehicle terminals 110 and 120 using a wireless internet communication technology. The real map server 130 may include an image information acquisition unit 132, a real map configuration unit 133, a preview event detector 134, a preview image determiner 135, an image information transmitter 136, and an image. Database 138 may be included.

The image information acquisition unit 132 receives image information generated by the image capturing unit 112 of the first vehicle terminal 110 through information exchange with the communication module 114 of the first vehicle terminal 110. As mentioned above, the image information acquisition unit 132 and the communication module 114 of the first vehicle terminal 110 may support wireless communication technologies such as CDMA, WCDMA, HSDPA, Wibro (Wimax), and LTE.

The real map constructing unit 133 constructs a real map based on the image photographed by the first vehicle terminal 110. The real map may be constructed by determining the frames of the acquired image and the locations where they will be provided. That is, the real map configuration unit 133 may configure the real map by matching the live image acquired by the image information acquisition unit 132 with the location where the image is to be provided and storing the image in the image database 138. Information stored in the image database 138 to construct a real map will be described with reference to FIG. 5.

The preview event detector 134 checks whether an execution condition of an event for providing a preview image to the vehicle terminal is satisfied. The preview event may be generated by receiving a preview request signal from the vehicle terminal. In addition, the preview event detector 134 may determine whether to perform the preview event in consideration of the location information of the vehicle to which the traffic information (real map information) is to be provided. For example, when a vehicle approaches a location where an unusual matter such as an intersection or a construction section exists, a preview image of the location may be transmitted to the vehicle terminal to promote safe driving of the user.

The preview image determiner 135 determines which image is to be provided as a preview image when a plurality of preview images exist for a certain position on the real map. As a criterion for determining the preview image, information about a location where the image is captured, information about a time when the image is captured, information about a vehicle that photographed the image, and the like may be used. Such information for determining the preview image may be obtained from the vehicle terminals 110 and 120.

For example, the preview request signal from the second vehicle terminal 120 may include location information on a point where the user wants to grasp traffic information on a route on which the vehicle moves. In addition, since various types of routes are possible according to the traveling direction of the vehicle even at the same intersection location, information about the movement route provided with the road guidance service in the second vehicle terminal 120 is also used to determine the preview image. Can be.

For example, when there are a plurality of videos captured for the point where the preview image is requested, the relatively recently captured image may be determined as the preview video. Such a decision criterion allows the driver to recognize the situation even when the traffic information modified by the road construction is not reflected in the digital map.

In addition, an image captured in a time zone similar to the time zone in which the preview image is requested may be provided first. When the second vehicle terminal 120 requests a preview image at night, it may be more efficient to provide an image captured at night as a preview image than to provide an image during the day time. To this end, the image database 138 may manage together with the image itself obtained from the first vehicle terminal 110, visual information on which the image is captured, identification information of the terminal, etc., which captured the image.

The image information transmitter 136 may transmit the determined real map information to the communication module 114 of the second vehicle terminal 120.

By transmitting image information regarding the current position of the vehicle, navigation using the live image can be implemented. In other words, by providing a live-action image that replaces a general digital map implemented with simple graphics, the driver can more clearly check whether the driver is on the right path.

On the other hand, the image information on the current position of the vehicle does not mean only the image information on the point / direction that exactly matches the vehicle position. The video information about the current position of the vehicle is sufficient to allow the driver to determine whether the driver is moving in the right direction by comparing with the scenery around the vehicle that the driver observes. Does not mean image information. As described above, the image information about the current position of the vehicle provided by the real map server 130 may be understood to include an image having an accurate position of the current vehicle and a predetermined spatial and temporal distance.

The image information transmitter 136 may also support various wireless communication standards as described above, and a detailed description of the standard itself is omitted as it will be apparent to those skilled in the art.

The image database 138 stores information about an image captured by the vehicle terminal according to an exemplary embodiment of the present invention. The real map may be configured by matching the image information and the position information in the image database 138. Data stored in the image database 138 for real map configuration will be described in detail with reference to FIG. 5.

2 is a flowchart illustrating a method of providing real map information according to an embodiment of the present invention.

The image information photographed by the first vehicle terminal 110 is transmitted to the real map server 130 (S210). The image capturing unit 112 of the first vehicle terminal 110 acquires a real time image as the first vehicle moves. The obtained image may be stored in a storage space of the terminal itself or transmitted to the real map server 130. In particular, an image at a point requiring special attention, such as an intersection and a highway junction, may be transmitted to the real map server 130 and transmitted to the other terminal as a preview image.

The real map server 130 stores the image information obtained from the first vehicle terminal 110 in the image database 138 (S220). The image information stored in the image database 138 may be understood to include not only the acquired image itself but also the location, time, and identification information of the photographing terminal. The image database 138 may process the acquired image in units of frames. In this case, the obtained image may be divided into frames corresponding to the positions on the real map and stored, or the correspondence between the positions on the real map and the frames may be stored.

In an embodiment of the present invention, the real map may be configured by determining frames of the acquired image and a location where the frames are to be provided. If the visual information on which each frame of the image is photographed and the location information on which each frame is photographed can be determined, the real map may be configured by storing a matching relationship between the photographing position and the corresponding image frame in the image database. That is, a real map may be formed by storing a certain image frame and position information (eg, GPS coordinates, etc.) in which the image frame is photographed together. The viewing of the real map may be understood as a process of receiving location information to be viewed and providing an image frame corresponding to the location.

The guidance route information in the second vehicle terminal 120 having the navigation function may be transmitted to the real map server (S230). The guide route information may include information about a start point and an end point of the route. In addition, the real map server 130 may also obtain location information of the vehicle from the second vehicle terminal 120. The location information of the vehicle may be obtained from a GPS sensor included in the second vehicle terminal 120.

The real map server 130 may provide the second vehicle terminal 120 with image information on a location corresponding to the obtained guide path information among all the real map information, so that the road guidance based on the live image may be implemented (S240). ).

Although all image information corresponding to the guide route information may be transmitted at once, only a portion of the guide route may be preferentially delivered to reduce the image transmission waiting time, and the remaining image information may be delivered according to the progress of the vehicle.

The second vehicle terminal 120 may provide the road guidance service based on the live image / image by reproducing the image information from the real map server 120 (S250).

The received image information may be reproduced in consideration of the moving speed and the direction of the vehicle. For example, when the video information photographed by the first vehicle running at 100 km / h is reproduced by the second vehicle running at 30 km / h, adjustment of the reproduction speed is required. The reproduction speed adjustment may be implemented by displaying a frame corresponding to the current position of the second vehicle among the real map information (image information) transmitted by the second vehicle terminal 120. In addition, adjustment of the playback speed may be implemented by adjusting the speed at which the real map server 130 transmits the image information. An image reproduction screen in the second vehicle terminal will be described with reference to FIG. 6.

The real map server 130 detects the occurrence of the preview event to perform a series of operations for providing the preview image (S260). The preview event may occur by satisfying a preset condition in the second vehicle terminal 120 or by a direct request of a user. For example, the second vehicle terminal 120 may generate a preview event before a predetermined distance of a singular location such as an intersection or a predetermined time before reaching the singular location. Such event occurrence information may be transmitted to the real map server 130. In addition, the driver may request real-time image information about a location other than the guide route through a direct request.

Delivery of preview events can be made according to a predefined protocol. The preview request signal may include identification information of the second vehicle terminal 120 requesting the preview image and identification information of a point to be previewed. Identification information, etc. of the terminal requesting the preview image may be used in a calculation process of a service fee using the preview image service.

When the generation of the preview event is detected, the real map server 130 transmits the preview image information to the second vehicle terminal 120 (S260). The image information transmitter 136 may transmit a preview image through wireless communication with the communication module 124 of the second vehicle terminal 120. In this process, a compression technique for improving a communication speed may be used. have. In addition, it is also possible to adjust the quality of the preview image transmitted according to the quality of the communication environment.

Prior to the transmission of the preview image information, the real map server 130 may determine an image suitable for the preview request signal from the images stored in the image database 138. The image to be provided in response to the preview request includes identification information on the point at which the preview is requested, information on the time at which the image was taken, identification information on the terminal which captured the image, and visual information on which the preview request was made. Can be determined in consideration of this.

The second vehicle terminal 120 provides the traffic information to the user by playing the preview image (S280). The preview image information from the real map server 130 is a series of electronic information according to a predefined protocol, and not only the preview image itself about the point where the user wants to obtain the information, but also information about the service fee, and the preview. The view image may include the time at which the image is captured or information about the terminal at which the image is captured.

3 is a flowchart of a method for providing real map information performed by a real map server according to an embodiment of the present invention.

Acquiring the image information from the terminal of the first vehicle (S210), the image information acquisition unit 132 of the real map server 130 exchanges information with the communication module 114 of the first vehicle through the first vehicle terminal It is a step of acquiring the image photographed by 110.

As mentioned above, in addition to the photographed image itself, information about a condition under which the image is photographed may be transmitted to the real map server 130, and such additional information may be generated by charging or previewing the preview image providing service. It can be used to.

The storing of the obtained image information in the image database (S220) is a step in which the real map server 130 stores the image information obtained from the first vehicle terminal 110 in the image database 138. The driving image information obtained from terminals installed in a vehicle driving on the road may be stored / managed in a database together with index information (information of image capturing position, time, etc.) of the image.

Acquiring the guidance route information from the second vehicle terminal (S230) is the basic information for determining that the real map server 130 is to be delivered to the second vehicle terminal 120 of the real map information, the second vehicle It is a step of acquiring information on the route being guided by the terminal 120. Such guide route information may also be transmitted as real-time location information during the movement of the vehicle.

In operation S240, the real map information corresponding to the guidance route information is transmitted to the second vehicle terminal. The image information regarding the position corresponding to the obtained guidance route information among all the real map information is transmitted to the second vehicle terminal 120. Transmitting the road guide based on the live image. The reproduction screen of the transmitted image information will be described with reference to FIG. 6.

4 is a flowchart of a method of providing preview image information according to an embodiment of the present invention.

Acquiring the image information from the terminal of the first vehicle (S210) and storing the obtained image information in the image database (S220) are described in detail with reference to the preceding drawings, and thus redundant description will be omitted.

Detecting the occurrence of a preview event (S260) The preview event detector 134 of the real map server 130 checks whether an execution condition of an event for providing a preview image to a vehicle terminal is satisfied. Description of this step As described above in detail with reference to the drawings, the overlapping description is omitted.

In the transmitting of the preview image information to the second vehicle terminal (S270), the image information transmitter 136 of the real map server 130 transmits the preview image to the communication module of the second vehicle terminal 120. to be.

Before transmitting the preview image information, a step of determining an image suitable for the preview request signal may be performed from all real map information stored in the image database 138. That is, the preview image determiner 134 may determine an image to be transmitted to the second vehicle terminal 120 as a response to the preview request signal among the images stored in the image database 138.

The preview image determined by using the information included in the preview request signal is transmitted to the communication module 114 of the second vehicle terminal 120 through a wireless communication technology. The transmitted preview image is reproduced by the image reproducing module 126. In this way, the user may check the traffic information on the path along which the vehicle (the second vehicle) moves through the actually photographed image. This makes it possible to identify changes in road conditions that occur between update periods of typical digital maps.

5 is a view visualizing information and information stored in an image database according to an embodiment of the present invention.

The real map may be configured by storing a matching relationship between the photographing position and the corresponding image frame in the image database 138. That is, a real map may be formed by storing a certain image frame and position information (eg, GPS coordinates, etc.) in which the image frame is photographed together.

As illustrated in FIG. 5, the image database 138 may store longitude and latitude information about the first vehicle as location information of each location. Image data identifier information corresponding to each position is also stored corresponding to the position. Image capturing time information may also be stored, and when a new image of the location is collected, the real database will be updated by updating the image database 138.

When the vehicle requests real map information on the first location, a video corresponding to the image identifier 'movie_12_1' or 'movie_38_1' may be played. The image identifier may be an identifier referring to one frame of a certain image. When a plurality of images are contrasted with respect to one location, the image information to be provided may be selected in consideration of image capturing (generation) time and current time information.

6 is a diagram illustrating a screen implemented a road guidance function using a live-action image according to an embodiment of the present invention.

Referring to FIG. 6, instead of a digital map provided by a general navigation terminal, a live-action image 610 captured by a vehicle terminal is provided as road guidance information. The displayed live image 610 may be updated as the vehicle moves. Additional information for guiding the road is displayed on the live image 610 (620).

As mentioned above, the condition in which the image constituting the real map information is obtained may not match the condition for the vehicle currently playing the image. If the vehicle driving speed at the time of acquiring the image is different from the moving speed of the current vehicle, it may be required to adjust the reproduction speed of the image. That is, the vehicle terminal may implement a navigation function based on the live image by displaying an image frame of the current vehicle position among the obtained real map data.

7 is a diagram illustrating a screen on which a preview image is provided according to an embodiment of the present invention.

Referring to FIG. 7, a road guide service providing screen expressed as a digital map is provided on the left side of the divided screen. The position of the vehicle on which the second vehicle terminal 120 is mounted is indicated by a triangular icon 720. At the point where the preview image is available, an icon 710 shaped like a camera is displayed. The camera-shaped icon may indicate the location of another vehicle where the preview image is available.

The user may select the preview image icon by using an input device such as a touch screen. In addition, the user may set the terminal so that the image is reproduced a predetermined distance or a predetermined time from the point where the preview image is available.

The preview image is reproduced on the right side of the divided screen in FIG. 7. Below the preview image being reproduced, it is indicated that this preview image is for an intersection 300 meters ahead. Although the information on which lane to use at an intersection cannot be accurately determined by the path information on the digital map shown on the left side, the risk of leaving the path is significantly reduced when the actual image information is previewed and entered.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

On the other hand, the components shown in Figure 1 do not necessarily have a hardware configuration, some components may be implemented in the form of an application program that performs the same or similar functions. In addition, each component may be combined or separated within the scope of the invention.

In addition, the real map information providing method according to an embodiment of the present invention can be created by a computer program. The codes and code segments that make up the program can be easily deduced by a computer programmer in the field. The program may also be stored in a computer readable media, which may be read and executed by a computer. The information storage medium includes a magnetic recording medium, an optical recording medium, and a carrier wave medium.

So far I looked at the center of the present invention with respect to the embodiment. Many embodiments other than the above-described embodiments are within the scope of the claims of the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

1 is a diagram illustrating an environment in which a method for providing real map information according to an embodiment of the present invention is implemented.

2 is a flowchart illustrating a method of providing real map information according to an embodiment of the present invention.

3 is a flowchart of a method for providing real map information performed by a real map server according to an embodiment of the present invention.

4 is a flowchart illustrating a method of providing a preview image in a vehicle terminal according to an embodiment of the present invention.

5 is a view visualizing information and information stored in an image database according to an embodiment of the present invention.

6 is a diagram illustrating a screen implemented a road guidance function using a live-action image according to an embodiment of the present invention.

7 is a diagram illustrating a screen on which a preview image is provided according to an embodiment of the present invention.

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

110: first vehicle terminal 120: second vehicle terminal

130: real map server 132: image information acquisition unit

136: video information transmission unit 138: video database

Claims (13)

As a method in which a real map server provides information about a real map formed as a set of live-action images, Acquiring image information regarding the first image photographed from the terminal of the first vehicle; Constructing the real map by matching the first image with location information on the real map and storing the first image in an image database; Acquiring guide route information from a second vehicle terminal installed in the second vehicle and having a navigation function; Providing real map information from the image information stored in the image database by transmitting image information corresponding to the obtained guide path information to the second vehicle terminal; Detecting occurrence of a preview event for providing the second vehicle terminal with a preview image, which is image information about a portion ahead of a current position of the second vehicle, on a path guided by the second vehicle terminal; When there is at least one preview image on the guide path of the second vehicle terminal, the preview image to be provided to the second vehicle terminal is determined, information about a location where the image is captured, and the image is captured. Determining the preview image based on at least one of information on time and information on a vehicle that captured the image; And Transmitting the determined preview image to the second vehicle terminal. How to provide real map information. The method according to claim 1, The real map information providing step When there is a plurality of image information corresponding to the guide path information of the second vehicle terminal in the image database, determining image information to be transmitted to the second vehicle terminal in consideration of image generation time information of the image information. More containing How to provide real map information. The method of claim 1, The step of configuring the real map It is performed by matching an image frame extracted from the first image with a position on the real map in consideration of image photographing position information acquired from the first vehicle terminal and storing the image frame in the image database. How to provide real map information. The method of claim 3, The real map information providing step And transmits an image frame matching the position information of the second vehicle obtained from the second vehicle terminal to the second vehicle terminal. How to provide real map information. delete The method of claim 1, The preview event occurrence detection step And when the preview request signal including the identification information of the first point on the guide path is received from the second vehicle terminal, detects that a preview event has occurred. The real map information providing step And transmitting the preview image information determined based on the identification information of the first point to the second vehicle terminal. How to provide real map information. A computer-readable recording medium having recorded thereon a program for executing the method of any one of claims 1, 2, 3, 4 and 6 on a computer. A system for providing information on a real map formed as a set of live-action images to a navigation terminal installed in a vehicle, An image information obtaining unit obtaining image information regarding the first image photographed from the terminal of the first vehicle; A real map constructing unit configured to configure the real map by matching the first image with location information on the real map and storing the first image in an image database; Image information that provides real map information by transmitting image information corresponding to the guidance path information acquired from a second vehicle terminal installed in a second vehicle and having a navigation function to the second vehicle terminal among the image information stored in the image database. A transmission unit; Preview event detection unit for detecting the occurrence of a preview event for providing a preview image, which is image information about a portion ahead of the current position of the second vehicle on the route guided by the second vehicle terminal to the second vehicle terminal; ; And When there is at least one preview image on the guide path of the second vehicle terminal, the preview image to be provided to the second vehicle terminal is determined, information about a location where the image is captured, and the image is captured. And a preview image determiner configured to determine the preview image based on at least one of information on time and information on a vehicle photographing the image. The image information transmission unit The determined preview image corresponding to the preview event is transmitted to the second vehicle terminal. Real map information providing system. The method of claim 8, When there is a plurality of image information corresponding to the guide route information of the second vehicle terminal in the image database, the image information to be transmitted to the second vehicle terminal is determined in consideration of image generation time information of the image information. Characterized by Real map information providing system. The method of claim 8, The real map configuration unit In consideration of image capturing position information acquired from the first vehicle terminal, the image frame extracted from the first image is matched with a position on the real map and stored in the image database. Real map information providing system. The method of claim 10, The image information transmission unit And transmits an image frame matching the position information of the second vehicle obtained from the second vehicle terminal to the second vehicle terminal. Real map information providing system. delete The method of claim 8, The preview event detector And when the preview request signal including the identification information of the first point on the guide path is received from the second vehicle terminal, detects that a preview event has occurred. The view image information is Characterized in that determined on the basis of the identification information for the first point. Real map information providing system.

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