KR20060122284A - A mobile telecommunication device having a geographic information providing function and the method thereof - Google Patents

Abstract

A mobile communication terminal having a geographic information providing function and a geographic information providing method using the same are provided to enable a control unit to search facility location information stored in a memory and output a control signal so as to display information matched with a real image, thereby improving reality by providing geographic information through the real image and enabling a user to easily identify a landmark. A geographic information providing method using the mobile communication terminal comprises the followings: extracting a real image by using a built-in camera(S81); obtaining information about a landmark included in the real image(S84); and displaying the obtained landmark information on the real image(S86). The real image is a still image or a continuous image by a preview function of the terminal.

Description

A mobile communication terminal having a geographic information providing function and a method for providing geographic information using the same {A mobile telecommunication device having a geographic information providing function and the method eg}

1 is a configuration diagram of a vehicle navigation system that is generally used.

2 to 3 are exemplary views of a navigation display displayed through a mobile communication terminal.

4 is an exemplary view showing an embodiment of a three-dimensional navigation system.

5 is a block diagram schematically showing an internal configuration of a mobile communication terminal according to a preferred embodiment of the present invention.

6 is an exemplary view illustrating an embodiment of receiving facility location information from an external device.

7 is a diagram illustrating an embodiment of inserting a memory storing facility location information in a mobile communication terminal according to the present invention.

8 is a flowchart showing the progress of a method for providing geographic information according to the present invention.

9 is an exemplary diagram of a live-action image displaying feature information provided according to an embodiment of the present invention.

The present invention relates to a mobile communication terminal of a CDMA (Code Divisional Multiple Access) method equipped with a GPS function and a method of providing geographic information using the same, and more particularly, to a geographic feature included in a live image captured in real time through an embedded camera. The present invention relates to a terminal capable of displaying by adding water information and a method of providing geographic information using the same.

A car navigation system is a vehicle navigation system that accurately detects the position, speed, and time of a vehicle by receiving radio waves emitted from three or four GPS satellites using a GPS receiver.

In general, a navigation system installed in a vehicle has a map CD storing map information, and displays the current position of the vehicle on a map, displays a route between the current position and a destination, or the current driving route according to a driver's request. By displaying the geographic information, such as to serve as a vehicle driving guide.

Such a navigation system has a monitor displaying a map stored on a map CD, and a GPS (Global Positioning System) for grasping the current position of the vehicle. GPS is a device that detects the current position of the vehicle by using a satellite, and transmits a radio wave having a frequency of 6 kHz to a plurality of GPS satellites from the vehicle, and each GPS satellite transmits data to each earth station. The earth station compares the data from each GPS satellite to calculate the exact coordinates of the current position of the vehicle and transmits the data corresponding to the coordinates to the GPS device installed in the vehicle. Then, the current position of the vehicle is displayed on the map, and when the driver selects a destination, the route from the current position to the destination is displayed. Also, depending on the selection, the shortest path can be found.

1 is a configuration diagram of a vehicle navigation system that is generally used. Map data and management data are recorded in a hierarchical data format to a GPS receiver 21, a CD-ROM player, etc., which receives vehicle position information and speed data through GPS reception antennas from three to four GPS satellites 10. A map information database 23 for providing map information from a 2D or 3D map database of a geographic information system (GIS) stored in a medium, map information provided from the map information database 23 and the GPS receiver 21 Reads the vehicle position information signal applied from the vehicle, calculates the current position of the vehicle by the coordinates on the map provided by the map information database 23, searches for a map to be viewed by the driver, and reduces and enlarges the map information. Control unit 22 for controlling the voice output operation, and displays the map and location information and additional information provided from the control unit 22 LCD 24, and a speaker 25 for receiving the audio signal for the search results from the control unit 22 and outputs the guide voice of the driving route.

In the vehicle navigation system, when the driver drives the vehicle, the controller 22 controls the current position and direction of the vehicle from the GPS receiver 21 and the map information database 23, the speed of the vehicle, road information, and the like. Is calculated to provide car navigation information.

Thanks to the development of communication technology, a product applying the vehicle navigation system to a mobile communication terminal has been developed. 2 to 3 are exemplary views of a navigation display displayed through a mobile communication terminal. That is, as shown in FIG. 2, only the three-dimensional map information is provided as shown in FIG. However, this information was somewhat uncomfortable.

As shown in FIG. 4, the technique proposed to solve this inconvenience can provide a more realistic feeling by displaying the feature in three dimensions. However, this technique also does not display specific information of the building shown in the image. Thus, there is still a difference between image and reality. For example, when there are many points to turn right when receiving right turn information while driving, it is often difficult to identify exactly where to turn right on the map. Therefore, there is a demand for a geographical information system having high discrimination of geographical features.

An object of the present invention is to provide a geographic information providing method and a mobile communication terminal applying the same to increase the realism by providing geographic information through the image of the real world.

Another object of the present invention is to provide a geographic information based on the real world so that the user can easily identify the feature.

A mobile communication terminal having a geographic information providing function according to the present invention for achieving the above objects includes a camera for taking a photo-realistic image; An information acquisition device for acquiring photographing position, photographing orientation, and facility position information of the camera; An information processing device for outputting a control signal by matching the information of the feature included in the live image provided by the camera with the information provided by the information obtaining device; And a display device for displaying information of the feature in a symbol and / or a character on a live image according to a control signal of the information processing device.

A detailed configuration feature of a mobile communication terminal having a geographic information providing function according to the present invention includes: a GPS receiver for acquiring photographing position information of the camera by the information acquisition device; A geomagnetic sensor for providing photographing orientation information of the camera; It is a point that comprises an angle sensor for providing the photographing picture angle information of the camera.

Another detailed configuration feature of the mobile communication terminal having a geographic information providing function according to the present invention is that the information acquisition device further comprises a speed sensor for providing speed information of the vehicle.

Another detailed configuration feature of the mobile communication terminal having a geographic information providing function according to the present invention is that a memory of a location of facility DB for providing location information of various facilities is further included.

Another detailed configuration of the mobile communication terminal having a geographic information providing function according to the present invention is that the memory is removable.

Another feature of the mobile communication terminal having a geographic information providing function according to the present invention is a camera for taking an image; A GPS receiver for receiving current location information in real time; A geomagnetism sensor for obtaining photographing orientation information to which the camera is directed according to the geomagnetism; An angle sensor for obtaining information of a photographing angle in the height direction that the camera faces; A memory storing a location of facility database for providing location information of various facilities; Searching for facility location information stored in the memory based on location information of a feature included in the live image captured by the camera and information provided from a plurality of sensors, and outputting a control signal for displaying information matched with the live image; A controller; It is a point that comprises a display device for outputting an image in accordance with the control signal of the controller.

A feature of the detailed configuration of a mobile communication terminal having a geographic information providing function according to the present invention is that the actual image is a still image or a continuous image by a preview function.

Another detailed configuration of the mobile communication terminal having a geographic information providing function according to the present invention is that the display device displays the feature information in a vector or bitmap method.

Method for providing geographic information using a mobile communication terminal according to the present invention comprises the steps of extracting the live image using a built-in camera; Obtaining information of a feature included in the live image; And displaying the information of the acquired feature on the live image.

Detailed features of the method for providing geographic information using a mobile communication terminal according to the present invention include the steps of: acquiring the current location information through a GPS receiver built in the terminal; Extracting altitude, angle, and direction information of the feature included in the live image using a plurality of sensors embedded in the terminal; And extracting information of the feature stored in a position of facility DB based on the feature's elevation, angle, direction information, and current location information.

A detailed feature of the method for providing geographic information using a mobile communication terminal according to the present invention is that traffic information is displayed on the live-action image.

Other objects, features and advantages of the present invention will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

Hereinafter, with reference to the accompanying drawings illustrating the configuration and operation of the embodiment of the present invention, the configuration and operation of the present invention shown in the drawings and described by it will be described by at least one embodiment, By the technical spirit of the present invention described above and its core configuration and operation is not limited.

5 is a block diagram schematically showing an internal configuration of a mobile communication terminal according to a preferred embodiment of the present invention. The configuration includes a camera 110 for capturing an image; A GPS receiver 120 for receiving current location information in real time; An angle sensor 130 for obtaining information of a photographing angle in a height direction facing the camera; A geomagnetic sensor 140 for obtaining photographing orientation information to which the camera 110 is directed according to the geomagnetic; A memory 160 in which a location of facility DB for providing location information of various facilities is stored; Based on the location information of the feature included in the live image captured by the camera 110 and the location information provided from the plurality of sensors, the facility location information stored in the memory is searched for displaying information matched with the live image. A controller 150 for outputting a control signal; A display device 170 which outputs an image according to a control signal of the controller 150; A speaker 180 for outputting geographic information provided through the control unit 150; It comprises a wireless transmission and reception unit 190 for transmitting and receiving data with an external device in a wireless manner.

The controller 110 drives a camera 110, for example, a solid-state image pickup device to obtain an image signal, processes the digital signal into a digital image signal, and temporarily stores the image signal in a memory. After acquiring the image signal, the facility location information is searched based on the values provided by the GPS receiver and each sensor to extract the matching feature information. The extracted feature information is superimposed on the image signal through the display device.

6 is an exemplary view illustrating an embodiment of receiving facility location information from an external device. That is, in FIG. 5, the facility location information is stored in the memory mounted on the terminal. However, in some cases, the location information may be provided from the geographic information providing server 200 provided with the facility location database 210 through the Internet. In this embodiment, the terminal calculates the location information of the feature, but if the display position calculation is performed by the geographic information providing server 200 instead of the terminal can reduce the processing burden of the terminal. That is, since it is not necessary to mount a processor having good computing power on the terminal, the cost burden for realizing a navigation service can be greatly reduced.

Meanwhile, FIG. 7 is an embodiment in which a memory storing facility location information is inserted into a mobile communication terminal according to the present invention. If necessary, the memory storing detailed facility location information for each region may be mounted or exchanged in the terminal. Detailed facility location information can be effectively used for a variety of users, such as taxi drivers or courier carriers who require accurate geographic information.

8 is a flowchart showing the progress of a method for providing geographic information according to the present invention. First, an image in front of the vehicle is photographed using a camera built in the terminal. In this case, the image may be a still image or a continuous image using a preview function of the terminal (S81).

Subsequently, information of a reception position (latitude, longitude, altitude) is acquired through the GPS receiver (S82), and at the same time, a sensor output value is received from a plurality of sensors configured in the terminal. In this case, the received value may include orientation information facing the camera through the geomagnetic sensor, angle information in the height direction facing the camera of the terminal, and speed information of the vehicle (S83).

Subsequently, the database of the memory in which the position of the facility is stored is searched to extract information on the main features located around the current location (S84).

The controller of the terminal performs a task of matching the extracted feature information with the feature included in the image provided through the camera (S85).

The control signal according to the matching result is provided to the LCD for display by the user. 9 is an exemplary diagram of a live-action image displaying feature information provided according to an embodiment of the present invention. Navigation information and the name of the feature is provided in the image being photographed, thereby improving the identification of the surrounding geography. For example, if the business name of the building on the left, located 10 meters from the current vehicle location, is "AAA Restaurant," add the business name in a vector or bitmap format on the feature image shown in the actual image. To display. In addition, by receiving the real-time traffic information may be additionally displayed on the image according to the traffic conditions. For example, if the road located on the left side of the road currently running is in a congestion state, the corresponding information may be displayed on the actual image output through the display device of the terminal (S86).

Here, the recognition of the feature appearing in the actual image can be sufficiently implemented through the known end point recognition and processing techniques of the image in general, which is irrelevant to the gist of the present invention and a detailed description thereof will be omitted.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

As described above, the mobile communication terminal and the method for providing geographic information using the same according to the present invention can provide the driver with more realism by displaying the information of the feature included in the live-action image, and can improve the identification of the feature. Has an effect.

Claims (21)

Extracting a live image using a built-in camera; Obtaining information of a feature included in the live image; Geographic information providing method using a mobile communication terminal comprising the step of displaying the information of the feature acquired on the live image. The method of claim 1, wherein the live image is a still image. The method of claim 1, wherein the live-action image is a continuous image by a preview function of the terminal. The method of claim 1, wherein the acquiring information of the feature is performed. Receiving current location information through a GPS receiver built in the terminal; Extracting altitude, angle, and direction information of the feature included in the live image using a plurality of sensors embedded in the terminal; Geographic information using a mobile communication terminal comprising the step of extracting the information of the feature stored in the Position of facility DB based on the feature's altitude, angle, direction information and current location information How to Provide. The method of claim 1, wherein the facility location database is stored in a memory of the mobile communication terminal. The method of claim 1, wherein the location of facility DB is connected to a server that is accessible to the terminal through the Internet. The method of claim 1, wherein the feature information is displayed on a display unit of the mobile communication terminal in a vector manner. The method of claim 1, wherein the feature information is displayed on a display unit of the mobile communication terminal in a bitmap manner. The method of claim 1, wherein the traffic information is displayed on the live-action image. A camera for taking a live-action image; An information acquisition device for acquiring photographing position, photographing orientation, and facility position information of the camera; An information processing device for outputting a control signal by matching the information of the feature included in the live image provided by the camera with the information provided by the information obtaining device; And a display device for displaying the feature information on the photorealistic image by symbols and / or letters according to the control signal of the information processing device. The apparatus of claim 10, wherein the information acquisition device comprises: A GPS receiver for acquiring photographing position information of the camera; A geomagnetic sensor for providing photographing orientation information of the camera; Mobile communication terminal having a geographic information providing function characterized in that it comprises an angle sensor for providing photographic picture angle information of the camera. 11. The mobile communication terminal of claim 10, wherein the information obtaining apparatus further comprises a speed sensor for providing speed information of the vehicle. The mobile communication terminal of claim 10, further comprising a memory storing a location of facility DB for providing location information of various facilities. The mobile communication terminal of claim 13, wherein the memory is detachable. The mobile communication terminal of claim 10, further comprising a wireless Internet communication unit accessible to a Position of facility DB for providing location information of various facilities. A camera for taking an image; A GPS receiver for receiving current location information in real time; A geomagnetism sensor for obtaining photographing orientation information to which the camera is directed according to the geomagnetism; An angle sensor for obtaining information of a photographing angle in the height direction that the camera faces; A memory storing a location of facility database for providing location information of various facilities; Outputs a control signal for searching facility location information stored in the memory based on the location information of the feature included in the live image captured by the camera and information provided from a plurality of sensors to display information matched with the live image. A control unit; And a display apparatus for outputting an image according to a control signal of the controller. The mobile communication terminal of claim 16, wherein the live-action image is a still image. 17. The mobile communication terminal of claim 16, wherein the live image is a continuous image by a preview function. The mobile communication terminal of claim 16, wherein the memory is removable. 17. The mobile communication terminal of claim 16, wherein the display device displays the feature information in a vector manner. 17. The mobile communication terminal of claim 16, wherein the display device displays the feature information in a bitmap manner.

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