KR101413605B1 - System and method for Navigation - Google Patents

Abstract

A navigation system and method are disclosed. A navigation system is attached to a predetermined point in a room, stores a barcode on which barcode information including identification information is printed, indoor map data of a room, and maps and stores the identification information and the position information of the barcode. Acquires barcode information, acquires location information and indoor map data from the map providing server through the identification information, receives the destination from the user, displays the location of the user on the indoor map, and displays the route and distance to the destination And displays it.

Description

≪ Desc / Clms Page number 1 > System and method for Navigation &

The present invention relates to a navigation system and method.

A location based service (LBS) is a service that grasps the location of a user through location location technology and provides various information or services based on the obtained result. Recently, a GPS, a geomagnetic sensor, a camera, an RFID Researches on location - based services have been actively conducted with the emergence of smart phones with functions. The existing location-based services are widely used for outdoor localization systems, such as location positioning technology using GPS and mobile communication network, and location positioning technology based on WLAN signal pattern matching algorithm .

However, such an outdoor positioning system is not suitable in an indoor environment requiring high accuracy of location estimation. The reason is that the outdoor positioning system guarantees proper performance outdoors, but it is difficult to obtain accurate indoor positioning due to the signal interference due to the indoor structure such as the wall in the room. Indoor positioning systems based on RFID, infrared rays, ultrasound, UWB (Ultra WideBand), and indoor positioning systems using cameras are proposed for indoor positioning, but they are difficult to commercialize due to high initial installation cost and operation cost.

BACKGROUND OF THE INVENTION [0002] There are patent documents related to an indoor location recognition system and a location recognition method using the indoor location recognition system, and disclose providing a location based service through location recognition and tracking of a user in a room.

2012-0069267 A 2012. 06. 28

The present invention provides a route guidance service through indoor positioning using a two-dimensional bar code.

According to an aspect of the invention, a navigation system is disclosed.

A navigation system according to an embodiment of the present invention includes a barcode attached to a predetermined point in a room and printing barcode information including identification information, a barcode storing indoor map data of the room, And acquires the barcode information, acquires the location information and the indoor map data from the map providing server through the identification information, receives a destination from the user, And a mobile terminal for displaying the location of the user on a map and calculating and displaying a route and a distance to the destination.

The position information includes azimuth information measured when the barcode installer views the barcode in front and position information of the barcode on the indoor map.

The mobile terminal obtains the barcode information while the user looks at the barcode in front, and measures and stores the azimuth information at the time of obtaining the barcode information.

The mobile terminal calculates and displays the direction of the user according to the change of the azimuth information at the time of obtaining the barcode information and the azimuth information currently measured.

The barcode is attached to a plurality of points in the room, and when a new barcode is scanned, the mobile terminal obtains route guidance information from the map providing server using the new barcode information, and updates the existing route guidance information.

According to another aspect of the present invention, a mobile terminal is disclosed.

A mobile terminal according to an embodiment of the present invention includes a camera unit for photographing a barcode on which barcode information including identification information is printed to generate a code image, a bar code recognition unit for recognizing the barcode using the code image, Acquiring location information of the barcode and indoor map data from the map providing server through the identification information, receiving the destination from the user, calculating the position of the user on the indoor map, Wherein the bar code is attached to a predetermined point in the room, and the map providing server stores the indoor map data of the indoor space in the indoor space, And maps the identification information and the position information of the bar code .

The position information includes azimuth information measured when the barcode installer views the barcode in front and position information of the barcode on the indoor map.

The camera section photographs the barcode in a state where the user views the barcode in front.

And a sensor unit for measuring azimuth information at the time of obtaining the barcode information.

Wherein the controller calculates a direction of the user according to the change of the azimuth information at the time of obtaining the barcode information and the azimuth information currently measured, and the display unit displays the direction of the orientation.

According to another aspect of the present invention, a navigation method of a mobile terminal is disclosed.

A navigation method of a mobile terminal according to an embodiment of the present invention includes the steps of acquiring barcode information from a barcode on which barcode information including identification information is printed, receiving location information of the barcode from the map providing server through the identification information, Calculating a location of the user on the indoor map by receiving a destination from a user, calculating a route and a distance to the destination, and displaying the location, the route and the distance of the user, Wherein the bar code is attached to a predetermined point in the room, and the map providing server stores the indoor map data of the room, and maps the identification information and the position information of the bar code to the bar code.

Calculating azimuth information at the time of obtaining the barcode information, calculating a user's azimuth direction in accordance with the azimuth information at the time of obtaining the barcode information and the azimuth information currently measured, and displaying the azimuth direction do.

The present invention can provide a route guidance service through indoor positioning using a two-dimensional bar code.

1 schematically illustrates a configuration of a navigation system;
FIG. 2 is a flowchart illustrating a navigation method in the navigation system of FIG. 1;
3 illustrates an example of a navigation service in a room.
4 is a block diagram schematically illustrating a configuration of a mobile terminal;

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, numerals used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to facilitate a thorough understanding of the present invention, the same reference numerals are used for the same means regardless of the number of the drawings.

1 is a view schematically illustrating a configuration of a navigation system.

Referring to FIG. 1, the navigation system includes a mobile terminal 100, a map providing server 200, and a two-dimensional barcode 300.

The two-dimensional barcode 300 is a code image printed in the form of a barcode, and is attached to a certain place in the room such as a wall, a ceiling, a floor, etc., scanned by a mobile terminal 100 having a camera, Barcode information of the two-dimensional barcode can be transmitted to the mobile terminal 100 through the barcode information. Here, the barcode information may include at least one of identification information, map code information, and connection information to the map providing server 200. For example, the connection information may be address information of the map providing server 200 such as a URL (Uniform Resource Locator). In this specification, it is assumed that the two-dimensional bar code 300 is used, but a one-dimensional bar code can be applied according to the implementation.

The map providing server 200 stores the constructed indoor map data and maps the location information of the two-dimensional bar code 300 attached to the indoor space to the identification information and stores the mapping information. That is, the positional information mapped to the identification information of the two-dimensional bar code 300 includes the azimuth information when the attached two-dimensional bar code 300 is viewed from the front and the position information of the two-dimensional bar code 300 on the indoor map .

For example, when a plurality of two-dimensional barcodes 300 are attached to arbitrary points in a room, the barcode installer registers each of the two-dimensional barcodes 300 in the map providing server 200. At this time, the bar code installer measures the azimuth angle in a state in which the two-dimensional bar code 300 is attached, confirms the position of the two-dimensional bar code 300 on the indoor map, Can be registered in the map providing server 200 by mapping it with the identification information.

The mobile terminal 100 is a terminal that performs communication through a mobile communication network or a wireless Internet network.

In particular, the mobile terminal 100 includes a camera to acquire barcode information by scanning the two-dimensional barcode 300, and acquires position information of the two-dimensional barcode 300 from the map providing server 300 using the obtained barcode information And indoor map data. At this time, the mobile terminal 100 transmits information indicating that the azimuth angle information of the two-dimensional bar code 300 received from the map providing server 300 is based on the front view of the two-dimensional bar code 300 to which the azimuth information is attached, (300), or may be stored in advance.

Accordingly, the mobile terminal 100 can receive the destination from the user and guide the route from the current location to the destination. At this time, the mobile terminal 100 can calculate and display the direction of the user based on the azimuth angle at the time of obtaining the barcode information and the azimuth difference at the current time. The mobile terminal 100 includes various positioning sensors such as a gyro sensor, an acceleration sensor, a gravity sensor, a compass sensor, and the like. The mobile terminal 100 senses a position change of the terminal according to a movement of a user, You can also guide the road.

FIG. 2 is a flowchart illustrating a navigation method in the navigation system of FIG. 1, and FIG. 3 is a diagram illustrating an example of a navigation service in a room. Hereinafter, a navigation method will be described with reference to FIG. 2, but with reference to FIG.

In step S210, the scheme providing server 200 registers the two-dimensional barcode 300. For example, referring to FIG. 3A, the bar code installer registers the two-dimensional bar code 300 in the map providing server 200 when attaching the two-dimensional bar code 300 to an arbitrary point in the room. At this time, the bar code installer measures the azimuth angle 10 while observing the attached two-dimensional bar code 300, confirms the position of the corresponding two-dimensional bar code 300 on the indoor map 20, Can be registered in the map providing server 200 by mapping the azimuth information and the position information of the map information with the identification information.

In step S220, the mobile terminal 100 scans the two-dimensional barcode 300 attached to the room to obtain barcode information. Here, the barcode information may include at least one of identification information, map code information, and connection information to the map providing server 200. For example, the connection information may be address information of the map providing server 200 such as a URL (Uniform Resource Locator).

Also, the mobile terminal 100 measures and stores the azimuth angle 10 at the time of obtaining the barcode information. For example, referring to FIG. 3 (b), while the user views the attached two-dimensional barcode 300 in front, the face on which the front camera is attached is parallel to the face on which the two-dimensional barcode 300 is attached In this state, the mobile terminal 100 can acquire barcode information by scanning the attached two-dimensional barcode 300, and can measure the azimuth angle 10 at this point.

In step S230, the mobile terminal 100 requests route guidance information to the map providing server 200 using the obtained barcode information. For example, the mobile terminal 100 accesses the map providing server 200 using the address information included in the barcode information, and transmits the identification information of the two-dimensional barcode 300 included in the barcode information to the map providing server 200 ) And request route guidance information.

In step S240, the map providing server 200 transmits the route guidance information to the mobile terminal in response to the request of the route guidance information. Here, the route guidance information may include position information of the two-dimensional bar code 300 and indoor map data. The position information may include azimuth angle information when the attached two-dimensional bar code 300 is viewed from the front, Information.

In step S250, the mobile terminal 100 performs the route guidance according to the reception of the route guidance information. For example, referring to FIG. 3 (c), the mobile terminal 100 displays the user location on the indoor map using the received route guidance information, and outputs the azimuth information included in the route guidance information as a reference Direction azimuth at the time when the two-dimensional bar code 300 is viewed in front of the bar code information) and the azimuth information currently measured and the azimuth information currently measured. At this time, the mobile terminal 100 may receive the destination from the user and calculate and display the route and distance to the destination based on the current location and the direction of the destination.

Referring to FIG. 3C, the two-dimensional bar code 300 may be attached at a predetermined interval or at a plurality of predetermined positions in the room, and a new two-dimensional bar code 300 appearing on the move may be moved By scanning to the terminal 100, the mobile terminal 100 can acquire the route guidance information from the map providing server 200 using the new barcode information and update the existing route guidance information.

4 is a block diagram schematically illustrating a configuration of a mobile terminal.

4, the mobile terminal 100 includes a communication unit 110, a memory unit 115, an output unit 120, an input unit 125, a camera unit 130, a code recognition unit 135, a sensor unit 140, a power supply unit 145, a control unit 150, and an interface unit 155.

The communication unit 110 may include a location information receiving module 111. [ Although not shown in the drawings, the communication unit 110 may further include a mobile communication module, a wireless Internet module, a short distance communication module, and the like as needed.

The location information receiving module 111 is a module for confirming or obtaining the current location of the mobile terminal 100. A typical example of the position information reception module 111 is a GPS (Global Position System) module. According to the present technology, the GPS module calculates information on a distance (distance) from three or more satellites, information on a time when the distance information is measured, and then applies trigonometry to the calculated distance information, It is possible to calculate three-dimensional position information according to latitude, longitude and altitude with respect to one point in one hour. Further, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is also used. The GPS module continuously calculates the current position in real time and uses it to calculate speed information.

The memory unit 115 may store a program for operation of the control unit 150 to be described later and may store input / output data (e.g., a phone book, a message, a still image, In particular, the memory unit 115 may store barcode information scanned from the two-dimensional barcode 300, position information of the two-dimensional barcode 300 received from the map providing server 200, indoor map data, and the like.

In addition, the memory unit 115 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory unit 115 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory, etc.) ), A random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read- , A magnetic disk, or an optical disk.

The output unit 120 generates an output related to a visual, auditory or tactile sense, and may include a display module, an acoustic output module, a haptic module, and the like.

Specifically, the display module displays and outputs information processed by the mobile terminal 100. For example, the display module displays a UI (User Interface) or GUI (Graphic User Interface) related to a call when the mobile terminal 100 is in the call mode. When the mobile terminal 100 is in the video communication mode or the photographing mode, the display module can display the photographed and / or received video or UI and GUI.

In particular, the display module may display and output the route guidance information.

The display module may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display display) or the like.

Depending on the implementation of the mobile terminal 100, there may be more than one display module. For example, in the mobile terminal 100, a plurality of display modules may be spaced apart from one another or may be arranged integrally with each other, or may be disposed on different surfaces.

The sound output module may output audio data received from the communication unit 110 or stored in the memory unit 115 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode,

Also, the sound output module may output an acoustic signal related to a function (e.g., a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. Such an audio output module may include a receiver, a speaker, a buzzer, and the like.

The haptic module generates various tactile effects that the user can feel. A typical example of a haptic effect generated by a haptic module is vibration. The intensity and pattern of the vibration generated by the tactile module can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

The input unit 125 is a user interface for receiving various commands from a user, and there is no particular limitation on the implementation method thereof. For example, the input unit 125 may be made up of one or more operation units such as a key pad, a touch pad (static / static), a wheel key, a jog switch, and the like.

In this case, the input unit 125 is integrally coupled to the display module of the output unit 120, so that the display unit of the display screen Or may be implemented in a soft key manner over the entire surface.

The camera unit 130 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the output unit 120. [

The image frame processed by the camera unit 130 may be stored in the memory unit 115 or may be transmitted to the outside through the communication unit 110. [ In addition, one or more camera units 130 may be provided depending on the configuration of the mobile terminal 100. [

In addition, the camera unit 130 can photograph the two-dimensional barcode 300, and the photographed code image can be used for extracting barcode information by the code recognition unit 135, which will be described later.

The code recognition unit 135 recognizes the bar code and extracts the bar code information. For example, the code recognition unit 135 may extract the barcode information by analyzing the code image acquired through the camera unit 130. [

The sensor unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the location of the mobile terminal 100, the presence of the user, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, the sensor unit 140 may sense whether the slide phone is opened or closed. In addition, it may take charge of a sensing function related to the power supply of the power supply unit 145 to be described later, whether the interface unit 155 is connected to an external device, and the like.

The sensor unit 140 senses the shaking of the mobile terminal 100 and notifies the control unit 150 of detection of the shaking. Also, the sensor unit 140 may measure the azimuth angle of the mobile terminal 100 and provide measurement data to a controller 165, which will be described later. For example, the sensor unit 140 can measure the azimuth using a compass sensor.

The power supply unit 145 receives external power and internal power under the control of a control unit 150 to be described later and supplies power required for operation of the respective components.

The control unit 150 typically controls the overall operation of the mobile terminal 100. For example, the control unit 150 performs related control and processing for voice call, data communication, video call, and the like. In addition, the control unit 150 may include a multimedia module for multimedia playback.

The control unit 150 requests the guidance information to the map providing server 300 using the barcode information provided from the code recognition unit 135. When the guidance information is obtained, .

For example, the controller 150 displays the user location on the indoor map using the received route guidance information, and displays the azimuth information included in the route guidance information based on the reference (when the user views the two-dimensional barcode 300 in front The orientation direction of the user can be calculated and displayed in accordance with the change in the azimuth information at the time of obtaining the barcode information and the azimuth information currently measured. At this time, the controller 150 receives the destination from the user and calculates and displays the route and the distance to the destination based on the current position and the direction.

The interface unit 155 serves as a path for communication with all the external devices connected to the mobile terminal 100. The interface unit 155 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data in the mobile terminal 100 to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 155.

Meanwhile, the navigation method according to an exemplary embodiment of the present invention may be implemented in the form of a program command that can be executed through a variety of means for electronically processing information, and may be recorded in a storage medium. The storage medium may include program instructions, data files, data structures, and the like, alone or in combination.

Program instructions to be recorded on the storage medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of software. Examples of storage media include magnetic media such as hard disks, floppy disks and magnetic tape, optical media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, magneto-optical media and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. The above-mentioned medium may also be a transmission medium such as a light or metal wire, wave guide, etc., including a carrier wave for transmitting a signal designating a program command, a data structure and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as devices for processing information electronically using an interpreter or the like, for example, a high-level language code that can be executed by a computer.

The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

100:
200: Map serving server
300: 2D barcode

Claims (13)

A barcode attached to a predetermined point in the room, the barcode printed with barcode information including identification information;
A map providing server for storing indoor map data of the indoor space, mapping and storing the identification information and the location information of the barcode; And
Acquiring the barcode information from the barcode, acquiring the location information and the indoor map data from the map providing server through the identification information, inputting the destination from the user, displaying the location of the user on the indoor map And a mobile terminal for calculating and displaying a route and a distance to the destination,
Wherein the mobile terminal obtains the barcode information while the user looks at the barcode in front and measures and stores the azimuth information at the time of obtaining the barcode information.
The method according to claim 1,
Wherein the position information includes azimuth information measured when the barcode installer views the barcode in front and position information of the barcode on the indoor map.
delete The method according to claim 1,
Wherein the mobile terminal calculates and displays a direction of the user according to the change of the azimuth information at the time of obtaining the barcode information and the azimuth information currently measured.
The method according to claim 1,
Wherein the bar code is attached to a plurality of points in the room,
Wherein the mobile terminal acquires route guidance information from the map providing server using the new barcode information and updates the existing route guidance information when a new barcode is scanned.
A camera unit for photographing a barcode printed with barcode information including identification information to generate a code image;
A code recognition unit for recognizing the barcode using the code image and extracting the barcode information from the barcode;
Acquiring location information of the barcode and indoor map data from the map providing server through the identification information, receiving the destination from the user, calculating the location of the user on the indoor map, and calculating the route and distance to the destination A control unit; And
And an output unit for displaying the position, the path and the distance of the user,
The bar code is attached to a predetermined point in the room,
Wherein the map providing server stores the indoor map data of the indoor space, maps the identification information and the location information of the barcode,
Wherein the camera section photographs the bar code when the user views the bar code on the front side.
The method according to claim 6,
Wherein the position information includes azimuth information measured when the bar code installer looks at the bar code in front and position information of the bar code on the indoor map.
delete The method according to claim 6,
And a sensor unit for measuring azimuth information at the time of obtaining the barcode information.
10. The method of claim 9,
Wherein the controller calculates the direction of the user according to the change of the azimuth information at the time of obtaining the barcode information and the azimuth information currently measured,
And the output unit displays the direction of the direction.
In a navigation method of a mobile terminal,
Obtaining barcode information from a barcode on which barcode information including identification information is printed;
Obtaining location information and indoor map data of the barcode from the map providing server through the identification information;
Calculating a position of the user on the indoor map by receiving the destination from the user, and calculating a route and a distance to the destination;
Displaying the location, the path and the distance of the user;
Measuring azimuth information at the time of obtaining the barcode information;
Calculating a direction of the user according to the change of the azimuth information at the time of obtaining the barcode information and the azimuth information currently measured; And
And displaying said direction of orientation,
The bar code is attached to a predetermined point in the room,
Wherein the map providing server stores the indoor map data of the indoor space, and maps the identification information and the location information of the barcode to store the indoor map data.
delete 12. A computer-readable recording medium recording a program for executing the method of claim 11 in a computer.

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