KR20130139550A - Mobile terminal and method for controlling the same - Google Patents

Abstract

The present invention relates to a mobile terminal and a method for controlling the same, which is capable of considering the convenience of a user and enabling the use of the mobile terminal. According to at least one among embodiments of the present invention, an unnecessary waste of power can be prevented by stopping communication with a specific tag when the mobile terminal communicates with the specific tag for more than a predetermined time. [Reference numerals] (110) Wireless communication unit;(111) Broadcast receiving module;(112) Mobile communication module;(113) Wireless Internet module;(114) Local area communication module;(115) Location information module;(120) A/V input unit;(121) Camera;(122) Microphone;(130) User input unit;(140) Sensing unit;(141) Proximity sensor;(150) Output unit;(151) Display unit;(152) Sound output module;(153) Alarming unit;(154) Haptic module;(155) Projector module;(160) Memory;(170) Interface unit;(180) Control unit;(181) Multimedia module;(190) Power supply unit

Description

[0001] MOBILE TERMINAL AND METHOD FOR CONTROLLING THE SAME [0002]

The present invention relates to a mobile terminal and a control method thereof, in which usage of a terminal can be realized by further considering convenience of a user.

The terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

As Near Field Communication (NFC) is installed in a mobile terminal, various functions may be supported. However, in case of a terminal that supports the existing NFC function, if it is in contact with an external NFC tag for a long time, even if it has already completed the necessary communication or does not need to maintain communication with the external NFC tag, power consumption The disadvantage is severe. Therefore, there is a demand for a solution to solve this problem.

The present invention is proposed to meet the above-described needs, and an object thereof is to provide a mobile terminal and a control method for releasing communication with a corresponding card after a certain time even if the mobile terminal and the card are in contact for a long time. .

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

In the mobile terminal supporting short-range communication according to an embodiment of the present invention to achieve the above object, a short-range communication module for detecting and communicating a tag, and the first communication when the short-range communication module communicates with the first tag for a predetermined time or more; It may include a control unit for controlling to stop communication with the tag.

In addition, in a control method of a mobile terminal supporting short-range communication according to an embodiment of the present invention for achieving the above object, detecting at least one tag, communicating with a first tag, and the first tag and The method may include controlling to stop communication with the first tag when communicating for a predetermined time or more.

Effects of the mobile terminal and the control method according to the present invention will be described as follows. According to at least one of the embodiments of the present invention, there is an advantage in that unnecessary consumption of power can be prevented when the mobile terminal and the external NFC tag are in contact for a long time.

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2A is a front perspective view of a mobile terminal according to an embodiment of the present invention.
2B is a rear perspective view of a mobile terminal according to an embodiment of the present invention.
3 is a view for explaining a service associated with NFC (Near Field Communication) applied to the present invention.
4 is a diagram illustrating a general method of detecting and communicating a tag using the NFC function.
5 is a flowchart illustrating a method for controlling a mobile terminal according to an embodiment of the present invention.
FIG. 6 is a diagram illustrating registering tag identification information in a list and stopping communication with a tag registered in the list according to an embodiment of the present invention.
FIG. 7 is a diagram illustrating a case where a mobile terminal detects another tag in a state in which communication is stopped for a specific tag.
FIG. 8 is a diagram illustrating a case in which a specific tag is dropped and close to another tag in a state where communication with the specific tag is stopped.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules that enable wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and a network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless internet module 113, a short range communication module 114, a location information module 115, and the like. .

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. Two or more broadcast receiving modules 111 may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information means information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only (Mobile Broadcasting Business Management System), ISDB-T (Integrated Services Digital Broadcasting (ISDB-T)), Digital Multimedia Broadcasting (MBMS) Digital Broadcast-Terrestrial) or the like. Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 may be coupled to a base station, an external terminal, or a server on a mobile communication network, such as, but not limited to, Gobal System for Mobile communications (GSM), Code Division Multiple Access (CDMA), Wideband CDMA Transmits and receives wireless signals with one. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. Wireless Internet technologies include WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), GSM, CDMA, WCDMA, LTE Evolution (but not limited to) may be used.

The wireless Internet module 113, which performs wireless Internet access through the mobile communication network, is connected to the mobile communication module 110 through the mobile communication network, for example, from the viewpoint that the wireless Internet access by Wibro, HSDPA, GSM, CDMA, WCDMA, LTE, (112). ≪ / RTI >

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module. According to the current technology, the position information module 115 calculates distance information and accurate time information from three or more satellites, and then applies a trigonometric method to the calculated information to obtain three-dimensional (3D) information according to latitude, longitude, The current position information can be accurately calculated. At present, a method of calculating position and time information using three satellites and correcting an error of the calculated position and time information using another satellite is widely used. In addition, the GPS module 115 can calculate speed information by continuously calculating the current position in real time.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video call mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad, a dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, 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, it may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 151, a sound output unit 152, an alarm unit 153, and a haptic module 154. Can be.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another, or may be disposed integrally with one another, and may be disposed on different surfaces, respectively.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller (not shown). The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

The proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is enclosed by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch" The act of actually contacting the pointer on the touch screen may be referred to as "contact touch. &Quot; The location where the pointer is proximately touched on the touch screen may refer to a position where the pointer corresponds vertically to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The sound output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output unit 152 may also output a sound signal related to a function (for example, a call signal reception sound or a message reception sound) performed in the mobile terminal 100. The audio output unit 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. Since the video signal or the audio signal may be output through the display unit 151 or the audio output module 152, in this case, the display unit 151 and the audio output unit 152 may be a kind of alarm unit 153. May be classified.

The haptic module 154 generates various tactile effects that the user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 154. The intensity and pattern of the vibration generated by the haptic module 154 are controllable. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. At least two haptic modules 154 may be provided according to the configuration of the mobile terminal 100.

The memory 160 may store a program for processing and controlling the control unit 180 and temporarily store the input / output data (e.g., telephone directory, message, audio, still image, For example. The memory 160 may store the frequency of use of each of the data (for example, each telephone number, each message, and frequency of use for each multimedia).

In addition, the memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 160 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), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the 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 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Therefore, the identification device can be connected to the mobile terminal 100 through the port.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be moved. It may be a passage that is delivered to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 180 itself.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

2A is a perspective view of an example of a mobile terminal or a mobile terminal according to the present invention.

The disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

The cases may be formed by injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.

A display unit 151, an audio output unit 152, a camera 121, user input units 130/131 and 132, a microphone 122, an interface unit 170, and the like are disposed in the front body 101 .

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 152 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface unit 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 The touch recognition mode can be activated or deactivated.

2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

Referring to FIG. 2B, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to that of the camera 121 (see FIG. 2A), and may be a camera having the same or different pixels as the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-upable.

A flash 123 and a mirror 124 may be additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2A), and may be used for the implementation of the speakerphone mode during a call.

In addition to the antenna for communication, a broadcast signal receiving antenna 116 may be additionally disposed on the side of the terminal body. The antenna 116, which forms part of the broadcast receiving module 111 (see FIG. 1), can be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the mobile terminal 100 is mounted on the terminal body. The power supply unit 190 may be built in the terminal body or may be detachable from the outside of the terminal body.

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may be of a light transmission type for the display unit 151. [ In this case, if the display unit 151 is configured to output the time information on both sides (i.e., in the directions of both the front and back sides of the mobile terminal), the time information can be recognized through the touch pad 135 do. The information output on both sides may be all controlled by the touch pad 135. [

Meanwhile, the display for exclusive use of the touch pad 135 may be separately installed, so that the touch screen may be disposed in the rear case 102 as well.

The touch pad 135 operates in association with the display unit 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have a size equal to or smaller than that of the display unit 151.

Hereinafter, embodiments related to a control method that can be implemented in the mobile terminal configured as above will be described with reference to the accompanying drawings.

Near Field Communication (NFC) is a type of electronic tagging (RFID) that uses a non-contact short-range wireless communication module that uses a specific frequency band (for example, 13.56 Mz). Say.

Near Field Communication (NFC) can be widely used for payment, travel information for visitors, travel information for visitors, transportation, and access control locks in supermarkets and general stores.

Such NFC technology may be applied to the mobile terminal 100 as well.

When NFC technology is applied, the terminal embedded with the tag is operated in the active mode in the concept extended from the existing RFID, so that not only functions as a tag, but also a reader to read the tag and input information to the tag It may be able to perform the function of the (WRITER), and may also enable P2P between the terminal and the terminal.

ISO 18092, the international standard for NFC, is also compatible with ISO 14443, the international standard for contactless smart cards, Sony's Felica, and Philips's MiFare.

For example, NFC tags may be classified into four types as shown in Table 1 below.

[Table 1]

However, it is obvious that the type of NFC tag shown in Table 1 is merely an example and may be implemented in other types.

In addition, NFC may be divided into three operation modes as shown in Table 2 below. However, Table 2 below is merely a mere example of the present invention, it is obvious that NFC can be used in other modes of operation.

[Table 2]

In addition, typical application services of NFC applied to the mobile terminal 100 may be classified as shown in FIG. However, the specific application service described in FIG. 3 is merely an example to which the present invention can be applied, and it is obvious that it may be provided as another type of service.

First, it can be used for contact application services between mobile terminals.

For example, payment service for payment, account transfer service through online account linkage, business card information exchange service such as contact information, e-mail, wireless communication access service such as pairing for data exchange between terminals, and the like.

Next, it can be used for personal information management application service.

For example, access control services including personal authentication services such as door opening and closing through authentication, user authentication of electronic products such as laptops, remote control of buildings, vehicles, and the like.

In addition, it can be used for providing information and customized advertisement-related application services.

For example, museums, guidance services such as providing tourist information (voice / text) and location guidance, medical services such as medical records management, runner services such as parking location checking, performance ticketing through poster contacts, public transportation ticketing, etc. Advertising and coupon services such as reservation services, location-based advertising and coupons, product information services such as viewing product information, authenticity determination, history tracking, manual and A / S information, and downloading contents such as e-books and music. This may include the same content purchase service, a social network service for directly transmitting information read from a tag to a social network.

4 is a diagram illustrating a general method of detecting and communicating a tag using the NFC function. FIG. 4A illustrates that the mobile terminal 100 cannot detect when the distance from the tag 501 is greater than or equal to a certain distance. That is, the short range communication module 114 is a module that can communicate only within a predetermined distance, and the predetermined distance may vary depending on a communication method. Referring to FIG. 4, the recognition boundary 503 is a limit to which the short range communication module 114 can communicate. Thus, the near field communication module 114 may detect and communicate when the tag 501 enters the recognition boundary 503, and the near field communication module 114 may detect when the tag 501 exists outside the recognition boundary 503. Can't detect and communicate.

Referring to FIG. 4B, the tag 501 is close to the mobile terminal 100 within a predetermined distance. As such, when the tag 501 is located within the recognition boundary 503 of the mobile terminal 100, the mobile terminal 100 may detect the tag 501 using the short range communication module 114 as in step 401. have. FIG. 4C is a diagram illustrating a case in which the mobile terminal 100 detects the tag 501 using the short range communication module 114. Referring to FIG. 4 (c), as in step 402, the mobile terminal 100 can communicate with the detected tag 501 using the short range communication module 114.

As such, the mobile terminal communicates with the detected tag 501. However, if the tag is still in close proximity, communication is maintained even if the necessary communication has been completed or not needed. Therefore, there is a disadvantage in that unnecessary power is wasted in maintaining communication continuously.

Therefore, the present invention proposes to stop the communication with the tag when the communication is maintained for a predetermined time in order to prevent such waste of power.

5 is a flowchart illustrating a method for controlling a mobile terminal according to an embodiment of the present invention. Referring to FIG. 5, in step S5001, the controller 180 detects a tag using the short range communication module 114. In this case, the tag detectable by the short range communication module 114 may be a tag existing within the recognition boundary 503. The controller 180 determines the identification information of the detected tag 501 and determines whether the identification information exists in the list. (S5002) In this case, the list means a list for filtering the tags existing in the list. If there is a tag registered in this list, communication with that tag is stopped. Accordingly, the list may include at least one of identification information of the tag, a communication start time, or a communication maintenance time.

If the identification information of the detected tag exists in the list, communication with the tag is stopped. (S5003) If the identification information of the detected tag does not exist in the list, the controller 180 checks the tag registered in the list. Initialize all (S5004), and exchange the information with the detected tag (S5005). In this case, the meaning of exchanging information means that the mobile terminal exchanges necessary information with the NFC tag in order to utilize the NFC function. For example, when the payment is attempted using the NFC function, it may mean exchanging payment information between the mobile terminal and the NFC tag.

In operation S5009, the controller 180 calculates a time for exchanging information with the tag, and maintains communication for exchanging information when the time for exchanging information is less than a predetermined time, and the list in the list when the time for exchanging information is more than a predetermined time. After registering the tag (S5006), the communication is stopped (S5003).

In step S5007, the controller 180 determines whether the short-range communication module 114 releases the detection of the tag. Detecting a tag means that the detected tag 501 is outside the recognition limit 503 of the short range communication module 114.

The present invention includes stopping communication for a tag that has been in close proximity for a long time for unnecessary power consumption. However, if a tag that has stopped communication closes again after a long distance, there is a need to communicate with the tag again. Therefore, in step S5007, the controller 180 determines whether there is a tag whose detection has been released. If such a tag exists, the controller 180 initializes the list in step S5008. If in step S5007 the controller 180 determines that there is no tag whose detection has been canceled, the controller 180 keeps the communication with the detected tag continuously.

FIG. 6 is a diagram illustrating registering tag identification information in a list and stopping communication with a tag registered in the list according to an embodiment of the present invention. According to FIG. 6 (a), the mobile terminal 100 detects a plurality of tags 501-1 and 501-2 using the short range communication module 114, and detects the detected tags 501-1 and 501-1. Can communicate with 2). Meanwhile, the controller 180 controls the short range communication module 114 to communicate with the second tag 501-2, and may stop communication with the second tag 501-2 when communicating for a predetermined time or more. . For example, when the mobile terminal 100 maintains communication with the second tag 501-2 for 7 seconds or more, communication with the second tag 501-2 may be stopped.

More specifically, as shown in FIG. 6B, when the mobile terminal 100 communicates with the second tag 501-2 for a predetermined time or more, the mobile terminal 100 lists identification information of the second tag 501-2. You can register at 502. The controller 180 may include at least one of identification information of the tag, a communication start time, and a communication maintenance time in the list. The mobile terminal 100 may exclude the tag registered in the list 502 from the communication target. As shown in FIG. 6 (c), communication with the second tag 501-2 is stopped. On the other hand, it is apparent that communication with the first tag 501-1 is maintained, and if the communication time with the first tag 501-1 is also equal to or greater than the predetermined value, it can be registered in the list 502.

As described above, the reason for stopping the communication for the tag in which the communication is maintained for a predetermined time as described above is to reduce power consumption. Because of its portability, the mobile terminal 100 can always be carried by the user using it. In this case, a situation in which the user keeps in contact with at least one or more tags may be considered. For example, a payment tag and a mobile terminal present in a credit card may exist together in a user's pocket. In this case, since the payment tag is still close to the mobile terminal, the mobile terminal can continue to communicate with the external NFC tag according to the existing technology. If communication is continuously performed, the power of the mobile terminal may consume more power than when it is not in communication, and there is concern about waste of power. In particular, the management of power may be one of the important concerns because of the portability of the mobile terminal. Therefore, in the embodiment of the present invention, when the mobile terminal approaches the specific tag for more than a predetermined time, the controller 180 controls the short range communication module 114 to stop communication with the specific tag.

FIG. 7 is a diagram illustrating a case where a mobile terminal detects another tag in a state in which communication is stopped for a specific tag. Referring to FIG. 7 (a), the mobile terminal 100 is in a state of stopping communication with the second tag 501-2, and in this case, the mobile terminal 100 is as shown in FIG. 6 (b). The identification information of the second tag may be registered in the list 502. As shown in FIG. 7B, when the third tag 501-3 approaches the mobile terminal 100, the mobile terminal 100 may detect the adjacent third tag 501-3. That is, when the third tag 501-3 enters the recognition boundary 503, the mobile terminal 100 may detect the adjacent third tag 501-3. The mobile terminal 100 may extract identification information of the third tag 501-3, and compare the identification information registered in the list 502 with the identification information. If the identification information of the third tag 501-3 is the same as the identification information registered in the list 502, the communication with the third tag 501-3 is not performed. This is because the identification information of the third tag 501-3 is the same as the value registered in the list 502 is the same tag as the second tag 501-2 which is currently interrupting communication. Therefore, the mobile terminal 100 does not communicate with the detected third tag 501-3.

On the other hand, when the identification information of the third tag 501-3 is different from the value registered in the list 502, as shown in FIG. 7 (c), the mobile terminal 100 uses the third tag 501-. 3) and short-range communication. This is because the second tag 501-2 and the newly detected third tag 501-3, which are already interrupted by the controller 180, are different tags.

Furthermore, the mobile terminal 100 resumes communication with the second tag 501-2 that has stopped communication. That is, the fact that the user has approached the third tag 501-3 to the mobile terminal 100 is intended to use the short-range communication module 114 of the mobile terminal 100, and thus the third tag 501-3 has been interrupted in FIG. 7 (b). 2 The communication with the tag 501-2 is resumed. In more detail, in the state of FIG. 7A, identification information registered in the list 502 is initialized. That is, all the identification information registered in the list 502 is deleted.

FIG. 8 is a diagram illustrating a case in which a specific tag is dropped and close to another tag in a state where communication with the specific tag is stopped. Referring to FIG. 8 (a), the mobile terminal 100 is in a state of stopping communication with the first tag 501-1. That is, the first tag 501-1 of FIG. 8A may communicate with the mobile terminal 100 for a predetermined time or more, thereby interrupting communication. In this case, the identification information of the first tag 501-1 may be registered in the list 502.

FIG. 8B is a diagram illustrating a state in which the mobile terminal 100 and the first tag 501-1 are far apart from each other. The far-away state means that the first tag 501-1 is moved to exist outside the recognition boundary 503. As shown in FIG. 8A, the identification information of the first tag 501-1 is registered in the list 502, and as shown in FIG. 8B, the first tag 501-1 has a recognition boundary ( If it is out of 503, the controller 180 can initialize the list 502. That is, when the mobile terminal 100 does not detect any tag 501, the identification information registered in the list 502 may be deleted.

The reason for this is that when a tag that is interrupted communication is contacted again after falling from the mobile terminal 100, the user may request that the tag be used again. As in the above example, there may be a case where the external NFC tag and the mobile terminal are superimposed together in the pocket and then take out from the pocket to perform the payment. In this case, the payment tag may be requested to use the payment tag by dropping the payment tag slightly away from the mobile terminal.

Subsequently, when the first tag 501-1 is positioned within the recognition boundary 503 of the mobile terminal 100 as shown in FIG. 8C, the mobile terminal 100 determines the first tag 501-1. Can detect and perform communication. This is because the controller 180 has already deleted the identification information of the first tag 501-1 from the list 502.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . Also, the computer may include a control unit 180 of the terminal.

Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

100: mobile terminal 110: wireless communication unit
120: A / V input / output unit 130: user input unit
140: sensing unit 150: output unit
160: memory 170: interface section
180: control unit 190: power supply unit

Claims (14)

In a mobile terminal supporting near field communication,
A short range communication module for detecting and communicating a tag; And
And a controller configured to stop the communication with the first tag when the short range communication module communicates with the first tag for more than a predetermined time. The method of claim 1,
The short range communication is a communication using Near Field Communication (NFC), and the short range communication module is a mobile terminal, characterized in that the NFC module. The method of claim 1,
The mobile terminal is further configured to control the short range communication module to resume communication with the first tag when it is detected by the short range communication module after the detection of the first tag is released. The method of claim 3, wherein
And the control unit stops the resumed communication if the resumed communication continues for a predetermined time or longer. The method of claim 1,
The control unit controls the short range communication module to communicate with the second tag while maintaining the interruption when the second tag is detected by the short range communication module while the communication with the first tag is interrupted. Mobile terminal. The method of claim 5, wherein
The controller controls the short-range communication module to stop communication with the second tag when communicating with the second tag for a predetermined time or longer. In the control method of a mobile terminal supporting near field communication,
Detecting at least one tag;
Communicating with the first tag; And
And controlling to stop communication with the first tag when communicating with the first tag for more than a predetermined time. The method of claim 7, wherein
The short range communication is a control method of a mobile terminal, characterized in that the communication using NFC (Near Field communication). The method of claim 7, wherein when the detection of the first tag is terminated and then detected again,
And resuming communication with the first tag. The method of claim 9, wherein when the communication resumed with the first tag continues for a predetermined time or more,
And controlling to stop the resumed communication. The method of claim 7, wherein
If a second tag is detected while communication with the first tag is interrupted,
Communicating with the second tag while maintaining the interruption. The method of claim 11, wherein when communicating with the second tag for more than a predetermined time,
And stopping the communication with the second tag. In the control method of a mobile terminal supporting near field communication,
Detecting a first tag;
Registering identification information of the first tag in a list when the first tag is detected for a predetermined time or more;
Disconnecting from the first tag;
Detecting a second tag;
Comparing identification information included in the list with the second tag; And
If the same identification information as the identification information of the second tag exists in the list, the connection with the second tag is released, and if the same identification information as the identification information of the second tag does not exist in the list, the second tag And maintaining a connection with the mobile terminal. The method of claim 13,
Initializing identification information registered in the list when the first tag and the second tag are not detected.

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