KR20130090800A - Terminal for recognizing communication target and method thereof - Google Patents

Abstract

PURPOSE: A terminal for recognizing a communication target in a visible range and a method thereof are provided to select the communication target through intuitive procedures and form a communication link with the selected communication target. CONSTITUTION: A terminal (1) includes a sensor (11), a communication unit (12), a control unit, and an output unit (14). The sensor obtains the direction information including a direction and an azimuth of the terminal. The communication unit receives the position information by requesting the position information from a communication target which does not know about the identifier information in a visible range of a terminal user. The control unit grasps a relative position of the communication target by using the position information of the communication target and the direction information of a terminal and maps the grasped relative position of the communication target on a screen of the terminal. The output unit displays the relative position of the communication target mapped through the control unit on the screen. [Reference numerals] (10) Image acquisition unit; (11) Sensor; (12) Communications unit; (13) Control unit; (14) Output unit; (15) Input unit

Description

Terminal and method for recognizing communication target within visible range {Terminal for recognizing communication target and method

The present invention relates to a technology for providing location recognition and location information service.

As the spread of wireless terminals with GPS built in such as smart phones and tablet PCs is becoming more common, many application services based on location information have been provided. In particular, a typical example is a navigation system that utilizes coordinate information obtained in real time from a signal transmitted by a GPS satellite, and an augmented reality mobile application that provides surrounding information. Nowadays, even in shadowed areas and indoor environments where GPS signals cannot be received, location information service is provided by using AP (Access Point) of Wireless Local Area Network (WLAN). Is expanding.

The current location information-based service is a method of storing absolute location information of a building or a fixed object in a database, and unilaterally providing information of nearby buildings and objects according to the location of a terminal user. On the service provider side, it should secure a large amount of DB and update the changes steadily. On the user side, information such as buildings and things that do not exist in the DB of the service provider cannot be obtained. In addition, it is difficult to provide an application service for transmitting and receiving information using location information between devices existing around a user. Furthermore, when using a pattern matching technique to find the similarity by storing the image pattern of the object that can be the communication target in the DB and comparing with the image taken by the user, there are cases where recognition is difficult due to sensitive influences such as lighting and weather. .

According to an embodiment of the present disclosure, a terminal for recognizing a communication target within a visible range capable of recognizing, distinguishing and displaying a communication target having no identification information within a visible range of a terminal user, and displaying a communication link with a communication target selected by the user. And a method thereof.

In accordance with an aspect of the present disclosure, a method of recognizing a communication target of a terminal includes obtaining location information of a communication target from a communication target that does not know identifier information within a visible range of the terminal user, and based on the acquired location information of the communication target. Determining the relative position of the communication target for and displaying the identified relative position of the communication target on the screen.

Acquiring the location information of the communication target, calculating the azimuth angle between the reference direction and the direction to which the terminal is directed, and setting a transmission range to transmit the location information request signal around the reference line having the calculated azimuth angle; And propagating the location information request signal within a set transmission range, and obtaining location information of the communication object from the communication object receiving the propagated request signal.

The setting of the transmission range may be a viewing angle range of the user, and may set a viewing angle at which the image obtaining unit of the terminal may acquire an image of a communication target as the transmission range.

The displaying may include calculating the relative angles of the communication object formed by the boundary line of the viewing angle range of the user and the direction of the communication object based on the terminal, using the acquired location information of the communication object, Mapping a communication object in the screen of the terminal according to the screen size of the terminal using the relative angle.

Computing the relative angle of the communication target, based on the location information obtained from the communication target, the azimuth angle between the reference direction of the terminal and the direction toward the communication target, the reference direction of the terminal and the terminal toward The relative angle of the communication target may be calculated by calculating the azimuth angle formed by the direction and the azimuth angle formed by the boundary of the viewing angle range of the user and the direction of the terminal based on the terminal.

The mapping of the communication target may include calculating the relative position of the communication target to be displayed on the screen of the terminal using the calculated relative angle of the communication target, the screen length of the terminal, and the viewing angle of the user, and the relative of the communication target. And mapping and displaying an image of a communication target obtained through the image acquisition unit of the terminal at a location.

According to a further embodiment, the method may further include setting a starting point on one side of the screen of the terminal, and mapping and displaying an image of the communication target may include: a communication target starting from a starting point set in the screen of the terminal by the user; It can be displayed on the screen to know the relative distance of.

The displaying may further include setting and displaying a boundary line that separates communication targets so that a user may select a communication target.

Furthermore, the method may further include forming a communication link with a communication target displayed on the screen. The step of forming a communication link with the communication target may include forming a communication link with the communication target by using the identifier information when the location information includes the identifier information when the location information is obtained from the communication target, and the identifier information from the communication target. If the terminal does not receive the information, the terminal transmits the location information of the communication target to the corresponding communication target, and if the communication target confirms whether the location information of the communication target received from the terminal matches its location information, the communication from the communication target The method may include receiving the identifier information of the target and forming a communication link with the communication target by using the identifier information of the received communication target.

In accordance with another aspect of the present invention, there is provided a method for recognizing a communication target of a terminal, including obtaining an image of a communication target having no identification information within a visible range of the terminal user, acquiring bearing information including the direction and azimuth of the terminal itself; Requesting location information from the communication target to receive the location information, using the bearing information of the terminal and the location information of the communication target to determine the relative location of the communication target, and obtaining the relative position of the identified communication target. And mapping the image with the target image to display on the screen.

Furthermore, when displaying the relative position of the communication target on the screen, displaying the communication targets so as to facilitate the user's selection of the communication target, and a communication target selection operation command from the user for the communication targets displayed on the screen. The method may further include receiving an input and forming a communication link with a communication target selected from a user.

According to another embodiment of the present invention, a terminal may include a sensor for obtaining orientation information including a direction and an azimuth of a terminal, a communication unit for requesting location information from a communication target that does not know identifier information within a visible range of a terminal user, and receiving location information; And a control unit for identifying the relative position of the communication target by using the orientation information of the terminal and the position information of the communication target and mapping the detected relative position of the communication target to the screen of the terminal, and the relative position of the communication target mapped through the controller. It includes an output unit to display on the screen.

The control unit sets a transmission range to transmit the location information request signal around a reference line having an azimuth angle obtained through the sensor, propagates the location information request signal through the communication unit within the set transmission range, and transmits the propagated location information request signal. It may include a location information processing unit for obtaining the location information of the communication target from the communication target received through the communication unit for processing it.

The control unit may receive the position information of the communication target from the position information processor, and calculate a relative position of the communication target formed by the user's viewing angle range boundary line and the direction in which the communication target is based on the terminal; The apparatus may further include a mapping unit configured to map a communication target in the screen according to the screen size of the terminal using the relative angle of the communication target calculated in.

The relative position calculation unit, based on the positional information obtained from the communication target, the azimuth angle formed by the reference direction of the terminal and the direction toward the communication object based on the terminal, the azimuth angle formed by the reference direction of the terminal and the direction toward the terminal, The relative angle of the communication target may be calculated by calculating the azimuth angle formed by the boundary of the viewing angle range of the user and the direction of the terminal based on the terminal.

The mapping unit calculates the relative position of the communication target to be displayed on the screen by calculating the relative angle of the communication target, the screen length of the terminal, and the user viewing angle calculated by the relative position calculating unit, and displays the calculated relative position of the communication target. Can be mapped to

The terminal further includes an image acquisition unit for acquiring an image of the communication target in real time, the relative position calculation unit detects the relative position of the communication target from which the image is acquired through the image acquisition unit, and the mapping unit detects the communication through the relative position calculation unit. The relative position of the target and the image of the communication target acquired through the image acquisition unit may be mapped onto the screen.

The terminal further includes an input unit for receiving a communication object selection operation command from a user with respect to the communication objects displayed on the screen through the output unit, and when the output unit displays the relative positions of the communication objects, the user can easily select the communication object. The boundary line between the communication targets can be indicated.

The communication unit may form a communication link with a communication object in which a relative position is indicated through the output unit. At this time, the communication unit, when the location information includes the identifier information when obtaining the location information from the communication target, and forms a communication link with the communication target by using the identifier information, and when the identifier information is not received from the communication target, When the location information of the communication object is transmitted to the communication object and the communication object confirms whether the location information of the communication object received from the terminal is identical with its own location information, the communication is received by receiving the identifier information of the communication object from the communication object. A communication link can be formed with a communication target by using identifier information of the target.

By using the orientation information of the terminal itself and the location information of the communication target that does not know the identifier information within the visible range of the terminal user, the relative position of the communication target is identified, and the identified relative position of the communication target is classified on the screen of the terminal. As it is displayed, the communication target is selected while viewing the communication target within the line of sight of the terminal user, and the communication target is selected through a more intuitive procedure than the existing communication system such as Cell-ID, IP, telephone number, and the communication link with the selected communication target. Can be formed.

In addition, the location information can be used instead of the pre-ID information required for the initial link formation between devices in the existing communication system, and the device selectively selects devices existing within a certain range within the visible range and provides them to the user. Can be.

1 is a reference diagram illustrating an environment to which a communication object recognition technology of a user terminal is applied according to an embodiment of the present invention;
2 is a flowchart illustrating a method of recognizing a communication target of a terminal according to an embodiment of the present invention;
3 is a reference diagram illustrating azimuth information and a visible range of a terminal according to an embodiment of the present invention;
4 is a reference diagram illustrating a relative angle of a device according to an embodiment of the present invention;
5 is a reference diagram illustrating a screen of a terminal to explain a process of mapping a location of a communication target to a screen according to an embodiment of the present invention;
6 is a reference diagram illustrating a screen of a terminal to describe an embodiment of setting a boundary between devices according to an embodiment of the present invention;
7 is a configuration diagram of a terminal according to an embodiment of the present invention;
8 is a detailed block diagram of the controller of FIG. 7 according to an exemplary embodiment.

Hereinafter, with reference to the accompanying drawings will be described embodiments of the present invention; In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, and this may vary depending on the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

1 is a reference diagram illustrating an environment to which a communication object recognition technology of the user terminal 1 is applied according to an embodiment of the present invention.

Referring to FIG. 1, the present invention relates to a device A (2), in which a user terminal (hereinafter referred to as a “terminal”) 1 is a candidate group of communication targets that do not know identifier information within a visible range of a user in a direction that the terminal 1 faces. The present invention relates to a technology for recognizing a communication target by using location information of -A) and device B (2-B), displaying the recognized communication target on the screen, and forming a communication link with the communication target displayed on the screen.

The present invention is applicable to any location recognition system having a function of providing location information of a device, such as GPS. In the present specification, a case of obtaining its own location information using GPS will be described as an example.

In order to explain the present invention, as shown in FIG. 1, when there are three devices in the communication area, that is, the terminal 1, the device A (2-A) and the device B (2-B) which are candidate groups for communication, exist. Take for example. The terminal 1 may be a hand-held device (HD) that is convenient for a user to carry. The device 2-A, 2-B may be an existing terminal or any object capable of direct communication, such as a vehicle, a building, a home appliance, or the like.

Assume that the communication environment of the present invention is as follows.

-The terminal 1 wants to establish a communication link with the device A (2-A). In other words, device A (2-A) is the communication target of the terminal (1).

The terminal 1 and the device A 2 -A do not know each other's identifier information (ID).

-Both devices A and B (2-A, 2-B) can know their own absolute position using GPS.

The terminal 1 can know the azimuth information including the direction and azimuth headed by the terminal 1 itself through an electronic compass or a sensor having a similar function.

The terminal 1 has an image acquisition unit and may display an image acquired through the image acquisition unit on a screen of the terminal 1 in real time. The image acquisition unit may be a conventional camera. Hereinafter, the image acquisition unit will be described with the camera, but the image acquisition unit is not limited to the camera.

-The terminal 1 can transmit the packet using radio waves in the direction and radius of the camera's field of view.

The devices 2-A and 2-B within the visible range of the user of the terminal 1 may use other devices in the area by using a transmission scheme such as broadcast, multicast, or unicast. Packets can be sent to them.

Hereinafter, under the assumptions described above, the terminal 1 does not confuse the device B (2-B), but information necessary for establishing a link with the device A (2-A), which is a communication target (for example, an identifier of the device B (2-B)). Information) is described below with reference to FIG.

2 is a flowchart illustrating a communication object recognition method of the terminal 1 according to an exemplary embodiment.

1 and 2, the terminal 1 acquires an image of the device A 2 -A by photographing a device A 2 -A that the user wants to establish a communication link with a camera (210).

Subsequently, the terminal 1 obtains azimuth information including azimuth angle gamma information using an azimuth sensor such as an electronic compass (220). The azimuth angle γ is an angle formed between the direction of the angle and the direction in which the terminal 1 faces. An embodiment of acquiring the orientation information of the terminal 1 will be described later with reference to FIG. 3.

The terminal 1 propagates the location information request signal within a viewing angle range of the user around the direction in which the terminal 1 faces using a technique such as beamforming (230). The viewing angle of the user may be the viewing angle λ of the camera of the terminal 1 around the direction in which the terminal 1 faces. In addition, the distance section in which the location information request signal is propagated is defined as the user's visual distance, but the specific propagation distance section specification may be selectively set by the manufacturer or the user.

The devices A and B (2-A and 2-B) receiving the location information request signal propagated by the terminal 1 obtain the absolute coordinates of their current location. Various methods, such as GPS satellite signals, can be used to obtain absolute coordinates. Subsequently, the devices A and B (2-A and 2-B) transmit a response packet to the terminal 1 without collision to the terminal 1, and the terminal 1 receives the response packet (230). ). An example of the collision avoidance transmission scheme may be CSMA.

The response packet contains various information. For example, the absolute position coordinates of the devices A and B (2-A and 2-B), the angle information (θ _a and θ _b ) that the devices A and B (2-A and 2-B) make with the reference direction, Unique identifier information (cell identifier, IP address, telephone number, etc.) of device A, B (2-A, 2-B), estimation from terminal 1 to device A, B (2-A, 2-B) Device information (available services, device capabilities, etc.) of the distances γ _a and γ _b and devices A and B (2-A, 2-B).

Subsequently, the terminal 1 determines the relative positions of the devices A and B (2-A, 2-B) using the response packets received from the devices A and B (2-A, 2-B) (240). . For example, the azimuth angle γ formed between the absolute position coordinates, the reference direction and the direction in which the terminal 1 faces, and the angle θ _a , which the devices A, B (2-A, 2-B) form with the reference direction. θ _b ) is used to calculate the relative angles θ _a ', θ _b ' of the devices A, B (2-A, 2-B) from the right viewing angle boundary line of the terminal 1. An example of calculating the relative angles θ _a 'and θ _b ' of the devices A and B (2-A, 2-B) will be described later with reference to FIG. 4.

Subsequently, the terminal 1 displays the relative positions of the devices A and B (2-A, 2-B) identified in the relative position determining step 240 on the screen of the devices A and B (2). Mapping with the image of -A, 2-B) outputs it (250). An embodiment of a specific mapping process will be described later with reference to FIG. 5.

Subsequently, the terminal 1 selects one of the devices A, B (2-A, 2-B) (eg, device A) from the user by using the mapping coordinates of the devices A, B (2-A, 2-B). Receive selection input. At this time, in order to facilitate the user's selection input, a boundary line may be set between the device A (2-A) and the device B (2-B). An embodiment of setting a border line will be described later with reference to FIG. 6.

The terminal 1 then establishes a communication link with the device selected from the user (260). Specifically, when the terminal 1 receives identifier information such as an IP address and a telephone number, which are additional information, from the devices A and B (2-A and 2-B) when receiving a response packet, the received identifier information is used. Thereby establishing a communication link with the device selected by the user.

On the other hand, when the identifier information such as the IP address and the telephone number is not received as the additional information of the devices A and B (2-A and 2-B), the terminal 1 moves to the area where the location information request signal is propagated. Transmits the location information of the selected device. The device existing in the corresponding area compares the location information received from the terminal 1 with its own location information, and if it matches, transmits its identifier information to the terminal 1 as a response signal. Then, the terminal 1 forms a communication link with the corresponding device using the received identifier information of the device.

3 is a reference diagram illustrating azimuth information and a visible range of the terminal 1 according to an embodiment of the present invention.

Referring to FIG. 3, the terminal 1 calculates an azimuth angle γ formed between the reference direction 100 and the direction 110 toward the terminal 1 by using an orientation sensor such as an electronic compass or a gyro sensor. In this case, the reference direction 100 may be a direction parallel to the latitude line, for example, an east direction (East) in FIG. 3. The camera viewing angle λ is a range in which the camera can photograph, and has a range within the left boundary line 120-1 and the right boundary line 120-2. The reference of the orientation sensor may be set to the right boundary line 120-2 of the camera viewing angle λ.

4 is a reference diagram illustrating a relative angle of devices A and B (2-A and 2-B) according to an embodiment of the present invention.

Referring to FIG. 4, the reference direction 100 of the terminal 1 and the terminal 1 based on the terminal 1 based on the location information obtained from the devices A and B (2-A and 2-B). In the azimuth angles θa and θb formed by the direction 110 toward), the azimuth angle γ formed between the reference direction 100 of the terminal 1 and the direction in which the devices A and B (2-A, 2-B) are directed. And a difference between the azimuth angle λ / 2 between the viewing angle range boundary line 120-2 of the user and the direction 110 facing the terminal 1 based on the terminal 1, and thus, the devices A and B (2-2). The relative angles θ _a 'and θ _b ' of A, 2-B) are respectively calculated. If this is expressed by a formula, it is the same as following formula (1), (2).

(1)

(One)

(2)

(2)

5 is a reference diagram illustrating a screen of the terminal 1 to explain a process of mapping a location of a communication target to a screen according to an embodiment of the present invention.

Referring to FIG. 5, the terminal 1 captures an image of the devices A and B (2-A and 2-B) through a camera and displays them on the screen. The width of the screen of the terminal 1 is expressed in cm. If it is assumed to have, the image of the device A, B (2-A, 2-B) is displayed on the screen according to the size ratio of the camera viewing angle (λ) and relative angles (θ _a ', θ _b '). .

According to an embodiment of the present disclosure, the relative distance at which each device A, B (2-A, 2-B) is mapped starting from the right end point of the screen of the terminal 1 is determined by the width of the screen ( l ) and the camera viewing angle (λ). ), It is reduced by 1 / λ times according to the ratio of the relative angles θ _a 'and θ _b '.

As shown in FIG. 5, if the rightmost end point of the screen of the terminal 1 is set as the start point of coordinates (0) and the leftmost point is set to l , the length of the screen, the devices A, B (2-A, The relative position at which 2-B) is mapped to the screen is shown in Equations (3) and (4).

(3)Mapping coordinates of device A (2-A):

(3)

(4)Mapping coordinates of device B (2-B):

(4)

The method of setting the starting point of the above-described coordinates is one example to help understanding of the present invention, and the present invention is not limited to the case where the starting point of the coordinates starts from the rightmost of the screen.

FIG. 6 is a reference diagram illustrating a screen of the terminal 1 to describe an embodiment of device-to-device borderline setting according to an embodiment of the present disclosure.

Referring to FIG. 6, the boundary line l _th 600 is set to a midpoint of a point where two devices A, B (2-A, 2-B) are mapped. If this is expressed as a formula, it is the same as Formula (5). Of course, the boundary line l _th 600 set as shown in Equation (5) is only one embodiment for better understanding of the present invention and can be variously modified.

(5)

(5)

When the user selects an area including the coordinates of 0≤x≤l _th part on the screen of the terminal 1, a process of forming a communication link with the device A (2-A) is performed. In contrast, when the user selects an area including the coordinates of the portion l _th ≤ x ≤ l, a process of forming a communication link with the device B (2-B) proceeds.

7 is a configuration diagram of a terminal 1 according to an embodiment of the present invention.

1 and 7, the terminal 1 includes an image acquisition unit 10, a sensor 11, a communication unit 12, a control unit 13, an output unit 14, and an input unit 15.

The sensor 11 acquires azimuth information including the direction and azimuth of the terminal 1 itself. The sensor 11 may be an orientation sensor such as an electronic compass and a gyro sensor.

The image acquisition unit 10 acquires an image of the devices A and B (2-A, 2-B) in real time. The image acquisition unit 10 may be a conventional camera. The image acquisition unit 10 may set a viewing angle at which the images of the devices A and B (2-A and 2-B) can be acquired as the visible range of the user of the terminal 1.

The communication unit 12 receives the location information by transmitting a location information request signal to the devices A, B (2-A, 2-B) which are candidate groups for communication that do not know the identifier information within the visible range of the user of the terminal 1.

The control unit 13 uses the orientation information of the terminal 1 obtained through the sensor 11 and the location information of the devices A, B (2-A, 2-B) obtained through the communication unit 12. The relative positions of A, B (2-A, 2-B) are identified, and the relative positions of the identified devices A, B (2-A, 2-B) are mapped to the screen of the terminal 1. The controller 13 determines the relative positions of the devices A and B (2-A and 2-B) with respect to the devices A and B (2-A and 2-B) from which the image is acquired through the image acquisition unit 10. The relative positions of the identified devices A and B (2-A and 2-B) and the images of the devices A and B (2-A and 2-B) may be mapped onto the screen.

The output unit 14 displays the relative positions of the devices A and B (2-A, 2-B) mapped by the control unit 13 on the screen. When the output unit 14 displays the relative positions of the devices A and B (2-A and 2-B) on the screen, the output unit 14 may display the boundary lines between the devices so that the user can easily select a communication target.

The input unit 15 receives an operation command from a user. In particular, the input unit 15 may receive a selection command for selecting a communication target to communicate among the candidate candidate groups from the user.

The communication unit 12 forms a communication link with the communication target selected by the user among the devices A and B (2-A and 2-B) whose relative positions are displayed through the output unit 14. According to an embodiment, when the communication unit 12 receives the identifier information from the communication target, the communication unit 12 forms a communication link with the communication target using the received identifier information. Alternatively, when the identifier information is not received from the communication target, when the location information of the communication target is transmitted to the corresponding communication target, and the communication target confirms whether the location information of the communication target received from the terminal matches the location information thereof, In response to the identifier information of the communication target from the communication target to form a communication link with the communication target using the identifier information of the communication target received.

8 is a detailed block diagram of the control unit 13 of FIG. 7 according to an exemplary embodiment.

Referring to FIG. 8, the controller 13 includes a position information processor 130, a relative position calculator 132, and a mapping unit 134.

7 and 8, the location information processor 130 sets a transmission range for transmitting the location information request signal based on a reference line having an azimuth angle obtained through the sensor 11. The device A and B (2-A) are propagated from the devices A and B (2-A and 2-B) that propagate the position information request signal through the communication unit 12 within the set transmission range and receive the propagated request signal. The position information of, 2-B) is obtained through the communication unit 12 and processed.

The relative position calculation unit 132 uses the location information obtained from the devices A and B (2-A and 2-B), and based on the terminal 1, the viewing angle range boundary line of the user and the devices A and B (2-). Calculate the relative angle of the communication target in the direction of A, 2-B). According to an embodiment, the relative position calculation unit 132 may refer to the terminal 1 based on the terminal 1 based on the location information obtained from the devices A and B (2-A and 2-B). Azimuth angle between the direction and the direction in which the devices A and B (2-A, 2-B) face, azimuth angle between the reference direction of the terminal 1 and the direction toward the terminal 1, and the viewing angle of the user based on the terminal The relative angles of the devices A and B (2-A, 2-B) are calculated by calculating the azimuth angle formed between the range boundary line and the direction in which the terminal 1 faces.

The mapping unit 134 uses the relative angles of the devices A and B (2-A, 2-B) calculated by the relative position calculating unit 132 to determine the device A, the screen in the screen according to the screen size of the terminal 1. Map B (2-A, 2-B). According to an embodiment, the mapping unit 134 calculates the relative angle of the communication target calculated by the relative position calculating unit 132, the screen length of the terminal 1, and the user viewing angle to display the devices A and B on the screen. Calculate the relative position of (2-A, 2-B) and map the calculated relative position of the devices A, B (2-A, 2-B) to the screen.

So far, the present invention has been described with reference to the embodiments. 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 an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

1: terminal 10: image acquisition unit
11 sensor 12 communication unit
13 control unit 14 output unit
15: input unit 130: location information processing unit
132: relative position calculation unit 134: mapping unit

Claims (20)

Obtaining location information of the communication object from a communication object that does not know identifier information within a visible range of a terminal user; And
Identifying the relative position of the communication target with respect to the terminal based on the obtained position information of the communication target and displaying the identified relative position of the communication target on the screen;
Communication object recognition method of a terminal comprising a. The method of claim 1, wherein the obtaining of the location information of the communication target comprises:
Calculating an azimuth angle formed between the reference direction and the direction in which the terminal is directed;
Setting a transmission range to transmit a location information request signal around a reference line having the calculated azimuth angle; And
Propagating a location information request signal within the set transmission range and acquiring location information of a communication object from a communication object receiving the propagated request signal;
Communication object recognition method of a terminal comprising a. The method of claim 2, wherein setting the transmission range comprises:
As a viewing angle range of the user, the communication object recognition method of the terminal, characterized in that for setting the viewing angle to the image acquisition unit of the terminal to obtain the image of the communication target. The method of claim 1, wherein the displaying step,
Calculating a relative angle of a communication target formed by a boundary line of a viewing angle range of a user and a direction toward the communication target based on the terminal, using the acquired location information of the communication target; And
Mapping the communication target within the screen of the terminal according to the screen size of the terminal using the calculated relative angle of the communication target;
Communication object recognition method of a terminal comprising a. The method of claim 4, wherein the calculating of the relative angle of the communication target,
On the basis of the location information obtained from the communication target, the azimuth angle formed by the reference direction of the terminal and the direction toward the communication object, the azimuth angle formed by the reference direction of the terminal and the direction toward the terminal, and the terminal A method of recognizing a communication target of a terminal, comprising calculating a relative angle of a communication target by calculating an azimuth formed between a user's viewing angle range boundary line and a direction toward the terminal as a reference. The method of claim 4, wherein the mapping of the communication target comprises:
Calculating the relative position of the communication target to be displayed on the screen of the terminal using the calculated relative angle of the communication target, the screen length of the terminal, and the viewing angle of the user;
Mapping and displaying an image of a communication target acquired through an image acquisition unit of a terminal to a relative position of the communication target;
Communication object recognition method of a terminal comprising a. The method according to claim 6,
Setting a starting point on one side of a screen of the terminal; More,
The step of mapping and displaying the image of the communication target, communication object recognition method of the terminal, characterized in that displayed on the screen so that the user knows the relative distance of the communication target starting from the start point set in the screen of the terminal. The method of claim 4, wherein the displaying step,
Setting and displaying a boundary that separates communication targets so that a user can select a communication target;
Communication object recognition method of the terminal further comprising. The method of claim 1,
Forming a communication link with a communication target displayed on the screen;
Communication object recognition method of the terminal further comprising. The method of claim 9, wherein forming a communication link with the communication target,
When the location information includes the identifier information when obtaining the location information from the communication target, forming a communication link with the communication target using the identifier information; And
If the terminal does not receive the identifier information from the communication target, the terminal transmits the location information of the communication target to the corresponding communication target, and if the communication target confirms whether the location information of the communication target received from the terminal is consistent with its own location information Receiving the identifier information of the communication target from the communication target and forming a communication link with the communication target using the identifier information of the communication target received;
Communication object recognition method of a terminal comprising a. Obtaining an image of a communication target having no identification information within a visible range of the terminal user;
Obtaining azimuth information including a direction and azimuth of the terminal itself;
Requesting location information from a communication object and receiving location information; And
Identifying a relative position of a communication target by using the orientation information of the terminal and the location information of the communication target, and displaying the detected relative position of the communication target on the screen by mapping the obtained relative position of the communication target;
Communication object recognition method of a terminal comprising a. The method of claim 11,
When displaying the relative position of the communication target on the screen, distinguishing and displaying the communication targets to facilitate the user's selection of the communication target; And
Receiving an input of a communication object selection operation command from a user with respect to communication objects displayed on the screen; And
Establishing a communication link with a communication target selected by a user;
Communication object recognition method of the terminal further comprising. A sensor for obtaining azimuth information including a direction and azimuth of the terminal;
A communication unit for receiving location information by requesting location information from a communication target that does not know identifier information within a visible range of a terminal user;
A control unit for identifying the relative position of the communication target by using the orientation information of the terminal and the location information of the communication target and mapping the detected relative position of the communication target to the screen of the terminal; And
An output unit which displays a relative position of a communication target mapped through the control unit on a screen;
And a terminal device. 14. The apparatus of claim 13,
Set a transmission range to transmit the location information request signal centered on a reference line having an azimuth angle obtained through the sensor, propagate the location information request signal through the communication unit within the set transmission range, and receive the propagated location information request signal. A location information processing unit for obtaining location information of a communication object from a communication object through the communication unit and processing the location information;
And a terminal device. 15. The apparatus of claim 14,
A relative position calculation unit receiving position information of a communication object from the location information processing unit and calculating a relative angle of a communication object formed between a user's viewing angle range boundary line and a direction toward the communication object based on the terminal; And
A mapping unit for mapping a communication object in the screen according to the screen size of the terminal using the relative angle of the communication object calculated by the relative position calculator;
Terminal further comprising a. The method of claim 15, wherein the relative position calculation unit,
On the basis of the location information obtained from the communication target, the azimuth angle formed by the reference direction of the terminal and the direction toward the communication object, the azimuth angle formed by the reference direction of the terminal and the direction toward the terminal, and the terminal Computing the azimuth angle between the viewing angle range boundary line of the user and the direction toward the terminal as a reference to calculate the relative angle of the communication target. The method of claim 15, wherein the mapping unit,
Calculate the relative position of the communication target to be displayed on the screen by calculating the relative angle of the communication target, the screen length of the terminal, and the user's viewing angle calculated by the relative position calculator, and map the calculated relative position of the communication target to the screen. Terminal, characterized in that. The method of claim 15, wherein the terminal,
An image obtaining unit obtaining an image of a communication target in real time; More,
The relative position calculator to determine the relative position of the communication target to obtain the image through the image acquisition unit,
The mapping unit is characterized in that for mapping the relative position of the communication target identified by the relative position calculation unit and the image of the communication target obtained through the image acquisition unit on the screen. The method of claim 13, wherein the terminal,
An input unit which receives a communication object selection operation command from a user with respect to the communication objects displayed on the screen through the output unit; More,
When the output unit displays the relative position of the communication target, the terminal characterized in that for distinguishing the communication target through the boundary line between the communication target so that the user can easily select the communication target. The method of claim 13, wherein the communication unit,
The communication unit forms a communication link with a communication target indicated by the relative position,
When the location information includes the identifier information when obtaining the location information from the communication target, and forms a communication link with the communication target using the identifier information,
When the identifier information is not received from the communication target, when the location information of the communication target is transmitted to the corresponding communication target, and the communication target confirms whether the location information of the communication target received from the terminal matches the location information of the communication target, And receiving the identifier information of the communication target from the communication target to form a communication link with the communication target using the identifier information of the communication target.

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